my summer internship report
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this report decribes the delay details and motion study of forklifts used in the company and suggestions which can be im...
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Summer Internship Report 2010 LIST OF COTETS DECLARATIO............................................................................................... 7 ACKOWLEDGEMET................................................................................ 8 ABSTRACT....................................................................................................... 9 LIST OF TABLES............................................................................................10 LIST OF FIGURES.......................................................................................13 CHAPTER-1 ITRODUCTIO.....................................................................14 1.1
ABOUT THE IDUSTRY......................................................................................14
1.2
SHORTAGE OF RAW MATERIAL....................................................................16
1.3
PORTER’S FIVE FORCE MODEL FOR COPPER IDUSTRY.....................18
CHAPTER-2 ABOUT THE COMPAY.......................................................19 2.1
VISIO 2015.............................................................................................................19
2.2
MISSIO...................................................................................................................19
2.3
STREGTHS...........................................................................................................20
2.4
HISTORY.................................................................................................................20
2.5
SWOT AALYSIS.....................................................................................................21
2.6
TQM- A WAY OF LIFE.........................................................................................22
2.7
TPM JOUREY AT SIIL.......................................................................................22
CHAPTER-3 OBJECTIVE, SCOPE AD METHODOLOGY..................23 3.1
OBJECTIVE............................................................................................................23
3.2
SCOPE OF THE PROJECTS................................................................................23
3.3
METHODOLOGY..................................................................................................23
3.4
LIMITATIOS OF THE PROJECT....................................................................23
CHAPTER-4 PROJECT I DETAIL............................................................24 4.1
DEFIITIO: TIME EFFICIECY...................................................................24
4.2
FACTORS IFLUECIG ACTUAL RUIG HOURS OF CELL .........24 HOUSE
4.2.1
CHAGE OVER....................................................................................................25
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 4.2.1.1
CELLHOUSE PREPARATIO...........................................................................25
4.2.1.2
CATHODE STRIPPIG MACHIE (CSM)......................................................26
4.2.1.2.1 PURPOSE...............................................................................................................26 4.2.1.2.2 OPERATIG PROCEDURE OF CSM..............................................................26 4.2.1.2.3 STADARD MACHIE HOURS REQUIRED................................................27 4.2.1.2.4 PARETO AALYSIS OF DELAY AREAS I CSM.......................................28 4.2.1.2.5 PARETO AALYSIS OF THE DEPARTMETS I CSM.............................30 4.2.1.3
AODE PREPARATIO MACHIE (APM)....................................................31
4.2.1.3.1 OPERATIG PROCEDURE OF APM...............................................................31 4.2.1.3.2 STADARD MACHIE HOURS REQUIRED.................................................32 4.2.1.3.3 PARETO AALYSIS OF DELAY AREAS I APM........................................33 4.2.1.3.4 PARETO AALYSIS OF THE DEPARTMETS I APM.............................34 4.2.1.4
AODE SCRAP WASHIG MACHIE (ASWM)...........................................35
4.2.1.4.1 OPERATIG PROCEDURE OF ASWM...........................................................35 4.2.1.4.2 STADARD MACHIE HOURS REQUIRED.................................................36 4.2.1.4.3 PARETO AALYSIS OF DELAY AREAS I ASWM....................................37 4.2.1.4.4 PARETO AALYSIS OF THE DEPARTMETS I ASWM........................38 4.2.1.5
CRAES.................................................................................................................39
4.2.1.5.1 E. O. T. CRAES...................................................................................................39 4.2.1.5.2 PARETO AALYSIS OF DELAY AREAS I CRAE-1...............................40 4.2.1.5.3 PARETO AALYSIS OF DEPARTMETS I CRAE-1..............................41 4.2.1.5.4 PARETO AALYSIS OF DELAY AREAS I CRAE-2................................42 4.2.1.5.5 PARETO AALYSIS OF DEPARTMETS I CRAE-2..............................43 4.2.1.6
OPERATOR SKILLS AD EXPERIECE.......................................................44
4.2.1.7
FORKLIFT AVAILABILITY...............................................................................44
4.2.1.8
PREVETIVE MAITEACE........................................................................44
4.2.1.9
LABOUR AVAILABILITY AD SKILLS.........................................................44
4.2.2
STRIPPIG.............................................................................................................45
4.2.3
RECTIFIERS..........................................................................................................45
4.2.4
MISCELLAEOUS................................................................................................45
4.3
ABOUT THE FORKLIFTS...................................................................................46
4.4
FORKLIFTS I EOU.............................................................................................47
4.4.1
REFIERY..............................................................................................................48
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 4.4.1.1
TIME CALCULATIOS.......................................................................................48
4.4.1.2
UTILIZATIO OF FORKLIFTS.........................................................................51
4.4.2
LOGISTICS.............................................................................................................53
4.4.2.1
TIME CALCULATIOS.......................................................................................53
4.4.2.2
UTILIZATIO OF THE FORKLIFTS................................................................55
4.4.3
CCR..........................................................................................................................57
4.4.3.1
TIME CALCULATIOS......................................................................................59
4.4.3.2
UTILIZATIO OF THE FORKLIFTS...............................................................59
CHAPTER 5 RESULTS AD SUGGESTIOS...........................................61 5.1
TIME EFFICIECY COSOLIDATED STATEMET..................................61
5.2
FOKKLIFT UTILIZATIO COSOLIDATED STATEMET.....................61
5.3
SUGGESTIOS......................................................................................................62
5.3.1
SUGGESTIO 1.....................................................................................................62
5.3.2
SUGGESTIO-2.....................................................................................................64
5.3.3
SUGGESTIO 3.....................................................................................................66
5.3.4
SUGGESTIO 4.....................................................................................................70
COCLUSIO.................................................................................................71 REFERECES.................................................................................................72
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010
CERTIFICATE - HEAD OF DEPARTMET
This is to certify that JOES DAVIS MATHEW (Registration # 0921120 ) is a bona fide student of Christ University Institute of Management (MBA batch 2009-11) and has successfully completed his Summer Internship Project at STERLITE INDUSTRIES INDIA LIMITED, TUTICORIN in Lean Operation & System stream
Place: Date:
……………………… Prof. CKT Chandrashekara Head of Department Christ University Institute of Management Bangalore
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010
CERTIFICATE –FACULTY GUIDE
This is to certify that this internship report on the title IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT is a bonafide work of Mr. Jones Davis Mathew, REG o 0921120 under my guidance and support .This report is a part of MBA course with specialization in Lean Operation & System stream and the content and the work done is genuine with respect to the information covered and thought expressed.
……………………… Place: MR SUNIL A.K PROFESSOR Date:
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010
CERTIFICATE FROM THE COMPAY
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010
DECLARATIO
I, Jones Davis Mathew, declare that the project entitled IMPROVING THE OPERATIONAL EFFICIENCY AND PROFITABILITY OF EXPORT ORIENTED UNIT (Sterlite Industries India Ltd.), done during the
period from 1stApril to 5thMay is my own effort and work.
This Project is done in partial fulfillment of the requirements for the award of the degree of MASTER OF BUSINESS ADMINISTRATION by CHRIST UNIVERSITY, BANGALORE.
Place: Bangaluru Date: 18th june 2010
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Signature
IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010
ACKNOWLEDGEMENT My gratitude is due to Mr. S. SRIDHAR, H.O.D Refinery, who has guided me and given his valuable time & knowledge during my stay at the company. I convey my gratitude to Capt. YOGESH KUMAR GAUR, ASSOCIATE MAAGER, HR, for his guidance and support throughout the project work during my stay at the company. I am deeply grateful to Sri. SUIL A.K, my Faculty Guide, who provided valuable insights and guidance at every stage of the project. I also convey my sincere gratitude to my friends and my family for their encouragement and support extended to me during the course of my project. At the end I would not forget to thank other members of SIIL, TUTICORIN who treated me with respect and helped me in the best of their capacity.
Signature.
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010
ABSTRACT This report deals with the improvement of Operational Efficiency and Profitability of the Export Oriented Unit (EOU) of Sterlite Industries India Limited, Tuticorin, Tamil Nadu. Process of copper cathode production in the Refinery unit has been studied and the time used for the production has been analyzed by performing the time efficiency study and the various factors that influence time efficiency. The various factors have been analyzed using Pareto analysis and the vital few causes have been pointed out on this report. Use of material handling equipments especially Forklifts have been studied in this report. The various motions that the forklift takes and the time taken for performing a particular activity has been observed. Utilization level for each of the forklifts used in the EOU has been calculated and accordingly suggestions have been provided to the company to improve the utilization level and thus reduce the excess quantity of forklifts used and contribute to the profitability of the company.
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 LIST OF TABLES 2.1 CURRENT CAPACITY DETAILS OF STERLITE INDUSTRIES (I) LTD
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4.1 MAJOR AREAS THAT CAUSE THE FUNCTIONING DELAY FOR CSM AND THE CONSOLIDATED OCCURRENCE FOR THE PERIOD OF NOV’09-MARCH’10 4.2 CONSOLIDATED DELAY DISTRIBUTION OF THE DEPARTMENTS FOR CSM FROM NOV’09-MARCH’10 4.3 MAJOR AREAS THAT CAUSE THE FUNCTIONING DELAY FOR APM AND THE CONSOLIDATED OCCURRENCE FOR THE PERIOD OF NOV’09-MARCH’10 4.4 CONSOLIDATED DELAY DISTRIBUTION OF THE DEPARTMENTS FOR APM FROM NOV’09-MARCH’10 4.5 MAJOR AREAS THAT CAUSE THE FUNCTIONING DELAY FOR ASWM AND THE CONSOLIDATED OCCURRENCE FOR THE PERIOD OF NOV’09-MARCH’10 4.6 CONSOLIDATED DELAY DISTRIBUTION OF THE DEPARTMENTS FOR ASWM FROM NOV’09-MARCH’10 4.7 MAJOR DELAYS OCCURRED IN CRANE-1 IN NOV-09 TO MARCH-10 4.8 CONSOLIDATED DELAY DISTRIBUTION OF THE DEPARTMENTS FOR CRANE1 FROM NOV’09-MARCH’10 4.9 MAJOR DELAYS OCCURRED IN CRANE-2 IN NOV-09 TO MARCH-10 4.10 CONSOLIDATED DELAY DISTRIBUTION OF THE DEPARTMENTS FROM NOV’09-MARCH’10 4.11 FORKLIFT TIMING FOR SHIFTING FRESH ANODES FROM CHIPPING YARD TO DESPATCH YARD 4.12 FORKLIFT TIMING FOR SHIFTING FRESH ANODES FROM DESPATCH YARD TO ANODE YARD BY 5TON AND 3 TON FORKLIFTS 4.13 FORKLIFT TIMING FOR CARRYING THE SPENT ANODE FROM ANODE YARD TO SMELTER YARD 4.14 FORKLIFT TIMING FOR CARRYING THE CATHODE FROM THE CSM MACHINE TO WEIGH SCALE AND FROM THERE TO THE CSM YARD 4.15 UTILIZATION OF 3 TON FORKLIFT DEDICATED TO CSM YSRD 4.16 UTILIZATION OF 3 TON FORKLIFT DEDICATED TO CSM YSRD CONSIDERING CHANGE OVER N STRIPPING TIME SEPERATELY 4.17 UTILIZATION OF 1-3TON AND 2-5TON FORKLIFT FOR APM YARD
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 4.18 FORKLIFT TIMING FOR SHIFTING CATHODE BUNDLES FROM THE CSM YARD TO THE WAREHOUSE 4.19 FORKLIFT TIMING FOR SHIFTING OF CATHODE BUNDLES FROM THE CSM YARD TO THE FRONT YARD 4.20 FORKLIFT TIMING FOR LOADING THE TRUCK WITH COILS AND CATHODE BUNDLES FROM THE WAREHOUSE TO THE TRUCK 4.21 FORKLIFT TIMING FOR SHIFTING THE CATHODE BUNDLES FROM FRONT YARD TO THE CCR FURNACE 4.22 UTILIZATION OF THE FORKLIFTS 3TON FORKLIFT DEDICATED TO CSM YARD 4.23 UTILIZATION OF THE FORKLIFTS FOR TRUCK LOADING (COIL, CATHODE) AND CATHODE BUNDLES TO CCR 4.24 FORKLIFT TIMING FOR SHIFTING OF COIL FROM THE CCR TO THE WAREHOUSE 4.25 FORKLIFT TIMING FOR FEEDING THE FURNACE WITH THE CATHODE BUNDLES FROM THE CCR YARD TO THE FEEDER 4.26 FORKLIFT TIMING FOR ACTIVITIES INSIDE THE CCR 4.27 UTILIZATION OF THE 3TON FORKLIFT DEDICATED TO FURNACE 4.28 UTILIZATION FOR 5 TON FORKLIFT FOR SHIFTING COIL FROM CCR TO WAREHOUSE 5.1 CONSOLIDATED TIME EFFICIENCY OF THE REFINERY 5.2 FOKKLIFT UTILIZATION CONSOLIDATED STATEMENT 5.3 RENEWD UTILIZATION WHEN 70% OF CATHODE IS SHIFTED BY 2 -5TON FORKLIFT OF LOGISTICS 5.4 RENEWD UTILIZATION WHEN 30% OF CATHODE IS SHIFTED BY 3TON FORKLIFT OF CSM 5.5 RENEWD UTILIZATION WHEN 100% OF CATHODE IS SHIFTED BY 2 -5TON FORKLIFT OF LOGISTICS 5.6 RENEWD UTILIZATION FOR 3 TON FORKLIFT OF CCR 5.7 REUTILIZATION OF THE FORKLIFTS FOR TRUCK LOADING (COIL, CATHODE) AND CATHODE BUNDLES TO CCR 5.8 RENEWD UTILIZATION FOR 5TON FORKLIFT OF CCR
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 5.9 RENEWD UTILIZATION WHEN 100% OF CATHODE IS SHIFTED BY 2 -5TON FORKLIFT OF LOGISTICS 5.10 RENEWD UTILIZATION WHEN 90% OF CATHODE IS SHIFTED BY 2 -5TON FORKLIFT OF LOGISTICS
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 LIST OF FIGURES 1.1 GROWTH OF PRODUCTION IN COPPER FROM THE YEAR 2004 TO 2008 1.2 COPPER INDUSTRY MARKET SHARE 1.3 GLOBAL DEMAND FOR COPPER BY REGION 2.1 PROCESS OF COPPER CATHODES AND RODS PRODUCTION AT SIIL 4.1 FLOW DIAGRAM OF CSM 4.2 PARETO ANALYSIS FOR CSM FOR THE PERIOD OF NOV’09-MARCH’10 4.3 PARETO ANALYSIS FOR CSM (DEPARTMENT VICE) FROM NOV’09-MARCH’10 4.4 FLOW DIAGRAM OF APM 4.5 PARETO ANALYSIS FOR APM FOR THE PERIOD OF NOV’09-MARCH’10 4.6 PARETO ANALYSIS FOR APM (DEPARTMENT VICE) FROM NOV’09-MARCH’10 4.7 PARETO ANALYSIS FOR ASWM FOR THE PERIOD OF NOV’09-MARCH’10 4.8 PARETO ANALYSIS FOR ASWM (DEPARTMENT VICE) FROM NOV’09MARCH’10 4.9 PARETO ANALYSIS FOR CRANE-1 FOR THE PERIOD OF NOV’09-MARCH’10 4.10 PARETO ANALYSIS FOR CRANE-1 (DEPARTMENT VICE) FROM NOV’09MARCH’10 4.11 PARETO ANALYSIS FOR CRANE-2 FOR THE PERIOD OF NOV’09-MARCH’10 4.12 PARETO ANALYSIS FOR CRANE-2 (DEPARTMENT VICE) FROM NOV’09MARCH’10 4.13 FORKLIFT 5.1 DIAGRAM OF AUTO FEEDER 5.2 DIAGRAM OF NEW RAILED CCR
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 CHAPTER-1 ITRODUCTIO 1.1 ABOUT THE IDUSTRY: The history of Indian copper industry goes back to 1967 with the incorporation of Hindustan Copper Ltd (HCL) and thereafter acquisition of mines from the public sector National Minerals Development Corporation (NMDC). But, the real twist in copper story took with the opening up this sector for private sector players in 1992 which saw the involvement of Indo Gulf Corporation (now a part of Hindalco Industries) and Sterlite Industries into copper smelting and refining through concentrate imports from various mining-rich countries. Copper is a special metal for industrial applications owing to its properties such as electrical conductivity, corrosion resistance, ductility, malleability and rigidity. Specific applications of copper include power cables and wires, jelly filled cables, building wires, air conditioning and refrigeration tubings.
Telecom, power, construction, transportation, handicrafts,
engineering, consumer durable, defence. The Indian Copper Industry was opened for private Sector investment in 1992. Earlier the industry was dominated by Hindustan Copper Limited (HCL), a public sector undertaking. The Industry currently has just 3 major players (Sterlite, Hindalco and Hindustan Copper Ltd.). Jhagaria Copper (erstwhile SWIL Ltd.), which commissioned its 50,000 tonne plant in Gujarat is reportedly facing acute shortage of raw material. The company approximately two years before initiated the commercial production on its plant equipped with the technology to use copper concentrates and scrap as raw materials. But, of late companied denied procuring scrap from domestic traders and imports remained scary for various reasons. Other players include around 1000 of SSI units but a majority of them closed down due to unviability. These units are primarily involved in converting scrap into ingots. While HCL is the only integrated producer, which mines and refines copper, Hindalco Industries and Sterlite Industries are secondary producers, who process both indigenous and imported copper concentrate to produce end products like copper bars, rods and wires. The fully de-mutualised copper producer is largely managed mainly by bankers. tonnes towards the end of the current fiscal year to go up to 947500 tonnes as against the demand of roughly 5 lakhs tonnes. The demand supply imbalance is unlikely to deteriorate further, as the ongoing boost in the country's infrastructure is expected to appreciate the
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 demand in tonnes, thus; taking the total production of beyond one million However, the surplus position in the domestic market is not major concern for the Indian players because the Asian region has a deficit of around 2.6 million tonnes. But it can only threatening call from rising prices which hit the unaffordable level during the last two years. While Japan, India and Philippines a surplus position, deficit regions comprise China, Taiwan, South Korea, Malaysia, Thailand and parts of Middle East. About 50 per cent of the domestic copper production is routed through secondary market through scrap imports. The domestic generation of copper is negligible as the system is not fully organized to recover copper scrap which is presently either burnt or dumped underground without realizing the resale Production growing at a CAGR of 15% 800 700 600 500 400 300 200 100 0 2004
2005
2006
2007
2008
Fig1.1
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 COPPER INDUSTRY MARKET SHARE 6%
1
%
47%
HINDALCO STERLITE HCL SWIL
46%
Fig1.2 Hindalco and Sterlite accounts for more than 90% of the production.
1.2 SHORTAGE OF RAW MATERIAL: Indian primary and secondary copper industry has been facing tremendous raw material shortage for which the smelters have been importing concentrates from the major mining countries like Peru, Chile, Canada etc and secondary producers have been surviving on low scrap imports. But, today, global industry is facing raw material supply deficit which is likely to persist until 2009. Increase in smelting capacity mainly in India and China and mines facing the problem of low grade, shortages of equipment and manpower have kept the concentrate market in deficit and have put further pressure on TcRc. During the first half of 2007, TcRc declined by almost 15%. The concentrate would continue to be short supply upto 2009; this may affect the TcRc, adversely, in the Spot Market, Debu Bhattacharya, MD, Hindalco Industries believes. Custom smelters are likely to remain under pressure for until new mines come on stream. The TcRc charges have been declining during the past few months due to constraints in concentrate availability. The TcRc charges have in fact declined from 5.64 c/ lb at the beginning of the financial year FY2004 to 2.56 c/ lb in Q4 FY2004, a drop of about 55% due to aggressive buying by Asian Smelters. Towards the end of the first quarter of the current fiscal the TcRc rate further declined to 2.00 c/lb Copper and copper products can be imported at zero duty from Sri Lanka under the Free
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 Trade Agreement (FTA) with that country. Duties on copper and copper products have been progressively reduced – for example, customs duty has been reduced from 35 per cent in 2001 to 10 per cent in 2006. On the production front, the last few years have seen significant additions in capacities in India and accordingly the production has increased at a CAGR of 14.8% during the last three years. The domestic consumption, on the other earmarked for exports. Strong demand for copper has resulted in steady rise in copper prices, which had earlier exhibited World demand growth forecast is 4.9 % for 2007 and 4.2% 2008. Per capita during 200708. India’s strong economic growth and key priority for the power sector which is major consumer of copper will support high demand and price in the near term. The Indian copper industry comprises 3% on the world copper map. Of late, India turned into a net exporter of copper from the status of net importer on account of rise in production by three companies for its applications in building, cabling for power and telecommunications, automobiles etc. Two major states owned telecommunications service providers – BSNL and MTNL consume 10% of the country’s copper production. Growth in the building construction and automobile sector is In India the users segment such as winding wire, power cables, transformers industry and continued increased export of downstream products supporting higher demand. However, the industry is greatly disadvantaged as non-value added imports from Sri Lanka under the free trade agreement (FTA) continue to adversely impact the domestic sales. But, the efforts initiated by the Sri Lankan government to curb imports, less value addition and re-exports to India illegally brought positive results. Now, it’s a wakeup call for the government of India to restrict unwanted imports and exports of raw material and finished products from the FTA countries. Under, FTA the re-exports of any goods was permitted with minimum 35% of value addition which was not practiced by the miscreants traders. But, today, the industry is complete safe as all units have already come back to India with their plants. Only three projects still remain in Sri Lanka with a minute production capacity of 200-250 tonnes per annum.
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 GLOBAL DEMAND FOR COPPER BY REGION
Fig 1.3
1.3 PORTER’S FIVE FORCE MODEL FOR COPPER IDUSTRY
Supplier Power • The country has rich reserves of minerals, ores • Growing, skilled manpower base
Threat of New Entrants • Supportive policy regime • Growing domestic market as well as exports across segments Competitive Rivalry • Number of domestic players • Highly competitive in secondary and downstream segments
Customer Power • User industries experiencing strong growth • Highly demanding customers • Wide range of products, specifications to meet different needs
Threat of Substitutes • Plastics and other substitutes being tried out in some user segments • No viable substitute in a majority of usage areas
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 CHAPTER2 ABOUT THE COMPAY Sterlite Industries India Ltd. (SLT) is a subsidiary of Vedanta Resources plc, a diversified and integrated metals and mining group. The company engages primarily in the production of copper in India. Its products include copper cathodes; and cast copper rods, including 11 mm and 12 mm rods used in the transformer industry, and 8 mm rods used by the wires and cables industry with applications in housing wires, electrical cables, and telecom cables. The
company
also
engages
in
the
mining
of bauxite,
and
the
production
of aluminium conductors and various aluminium products, as well as in the mining of zinc ore, and in the manufacture of zinc ingots and lead ingots. In addition, Sterlite Industries produces various chemical products, such as sulphuric acids, phosphoric acids, phospho gypsum, hydro fluo silicic acids, and granulated slag. Further, the company involves in trading gold, as well as in paper business. It markets its copper products directly to original equipment manufacturers and traders. The company is based in Mumbai, India. The company’s main operating subsidiaries are Hindustan Zinc Limited for its zinc and lead operations; Copper Mines of Tasmania Pty Limited for its copper operations in Australia; and Bharat Aluminium Company Limited for its aluminium operations. The company is entering into the commercial power generation business by setting up a large scale 2,400 MW coal based independent thermal power plant in Jharsuguda, Orissa and a wind energy project at Karnataka, Gujarat and Maharashtra, totalling 110.4 MW. Post completion of these projects, the company will have a total wind power capacity of 148.8 MW.
2.1 VISIO 2015 To be the world’s leading copper producer delivering sustainable value to all stakeholders by leveraging technology and best practices.
2.2 MISSIO •
To build a knowledge and process driven organization through TPM
•
To create sustainable value through safe, clean and green processes
•
To sustain leadership position in domestic and global market through market
•
development and customer delight. To be the best and most respectable corporate citizen
•
To leverage technology to its full potential across the business cycle
•
To harness the profitable and growing CCR/value added product from 240KMT to 600 KMT per annum.
• •
To achieve Zero cost and beyond To secure raw material through long term contracts and captive mine
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 2.3 STREGTHS: Today, our organization is growing by leaps and bounds thanks to our competitive strengths, which include: • High quality assets and resources that make us a low-cost producer of copper and zinc. • Substantial market shares across the copper, zinc and Aluminium metals markets in India. • Extensive experience in operating and expanding our business in India that allows us to capitalize on attractive growth opportunities and resource potential in the country. • Numerous new projects in the pipeline that will enable us to expand our production. • Experience for entry into commercial power generation business in India with our operations of captive power plants since 1997. • Experienced and focused management with strong project execution and acquisition skills. • Ability and capacity to finance world-class project
2.4 HISTORY • • • • • • • •
1986- Sterlite Cables Limited, acquires the Shamsher Sterling Corporation, changes the name to Sterlite Industries (India) Limited. 1988- Sterlite Industries makes an initial public offering of its shares on the Indian stock exchange. 1991- Sterlite Industries establishes India’s first continuous copper rod plant. 1997- Commissions first privately developed copper smelter in India at Tuticorin in Tamil Nadu. 1999- Acquires Copper Mines of Tasmania Pty Ltd. o Acquires Thalanga Copper Mines Pty Ltd. 2005- Expansion of Tuticorin Smelter to 300,000 TPA and Successful ramp up of ISA furnace in a record period of 45 days. 2006- Expansion on Tuticorin smelter to 400 KTPA through innovative debottlenecking. 2007- Sterlite Industries primary listing on NYSE in June 2007
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 Current Capacity Details Particulars Copper Mines - Tasmania – ore mined (Grade - 1.2% Copper) Copper Cathode – Refinery - Tuticorin - Silvassa Copper Rod - Tuticorin - Silvassa Sulphuric Acid - Tuticorin Phosphoric Acid Plant - Tuticorin Captive Power plant - Tuticorin
Current Capacity 2.5mn tonnes
205000 tonnes 195000 tonnes 90000 tonnes 150000 tonnes 1300000 tonnes 180000 tonnes 46.5 MW Table2.1
2.5 SWOT Analysis STREGHTS Cost of production stands at 1.8 cents/lb due to better by-product realizations and is in the lowest quartile i.e. 7th and 8th position in terms of global cost of production. Hence, the prices of copper company have a competitive edge despite declining TcRc as it continues to generate positive cash flows.
WEAKESS No significant backward linkages in terms of copper mines, makes the company dependent on global miners and it will not benefit from any upturn in LME
OPPORTUITIES THREATS Increasing demand in the domestic market Non- availability of copper concentrate would could provide benefits in terms of savings on put pressure on TcRc rates and impact freight cost since billing is based on the landed operating margins cost of metal prices. Exports currently account for 56% of its copper sales volume
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 2.6 TQM- A Way of Life: •
First phase launched in 1997.
•
Each phase consists 10 to 15 projects. 15TH phase in progress.
• •
30% employee involvement
• •
Projects Completed: 100 + Nos. Sterlite is the only company with three TQM projects got selected in the ASQ 2007
•
Total cost savings : $ 40 m (till date)
2.7 TPM journey at SIIL • •
TPM journey started in 2007 Manager Model Plant - CCR Plant
•
Model Office TPM Area - Central Stores
•
CII- TPM Club India supports the TPM implementation process.
•
TPM – Kickoff held on 18Apr’08 at Tuticorin.
•
5S sustenance and Autonomous Production Rate Maintenance pillar activities are in progress
Process of Copper Cathodes and Rods production at SIIL:
Fig 2.1
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 CHAPTER-3 OBJECTIVE, SCOPE AD METHODOLOGY 3.1 OBJECTIVE: To increase the operational efficiency and profitability of the Export Oriented Unit (EOU) at Sterlite Industries India Limited, Tuticorin (TN). To accomplish this objective two major projects undertaken are: 1. Time efficiency and factors influencing time efficiency in refinery unit. 2. Forklift motion study and utilization in EOU. 3.2 SCOPE OF THE PROJECTS: The scope of project regarding time efficiency is to analyse the time used for the copper production in the refinery unit and to find the factors which contribute to the inefficiency of the process. Project regarding the motion study of the Forklifts in the EOU will help to understand the utilization level of the forklifts used and ways to improve the utilization level. 3.3 METHODOLOGY: For the first project related to Time Efficiency, the methodology adopted is to collect data from the Distributed Control System and the employees on the shop floor. The data collected is then analyzed using Pareto analysis and the vital few causes that lead to the 80% of the delay in time utilization is listed out. For the second project related to Forklifts, the methodology adopted is to collect the primary data by observing the forklifts motion throughout the EOU premises and the time taken by each forklift to perform a particular activity. Various combinations of activities for each forklift are tried and then suggestions are provided to improve the utilization of each forklift. 3.4 LIMITATIOS OF THE PROJECT: Some of the information which comes under the confidentiality barriers are not included in this report. Due to the limitation of the time available for the internship detailed research on the technical aspects of the machinery has not been covered in this report.
23
IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 CHAPTER-4 PROJECT I DETAIL PROJECT 1: TIME EFFICIECY AD FACTORS IFLUECIG TIME EFFICIECY 4.1 DEFIITIO: TIME EFFICIECY It is the percentage of duration by which the CELLHOUSE are in locked in position so as to deposit copper in cathode plate with respect to the total time available for deposition. Time Efficiency= Time current is applied *100 Total time available STANDARD TIME EFFICIENCY IS SUPPOSED TO BE 97.2% 4.2 FACTORS IFLUECIG ACTUAL RUIG HOURS OF CELL HOUSE ACTUAL RUNNING HOURS
CHANGE OVER FACTORS DETERMINING CHANGE OVER
STRIPPING
RECTIFIERS
FACTORS DETERMINING STRIPPING 1. CSM PERFORMANCE * 2. CRANE PERFORMANCE *
1. CELL HOUSE PREPARATION 2. CSM PERFORMANCE * 3. ASWM PERFORMANCE * 4. APM PERFORMANCE *
MISCELLANEOUS 1. ANODE AVAILABILITY 2. DEMAND IN THE COPPER MARKET
3. OPERATORS SKILL AND EXPERIENCE* 4. FORKLIFT AVAILABILITY* 5. PREVENTIVE MAINTENANCE* 6. LABOUR AVAILABILITY AND SKILLS*
5. CRANE PERFORMANCE * 6. OPERATORS SKILL AND EXPERIENCE* 7. FORKLIFT AVAILABILITY* 8. PREVENTIVE MAINTENANCE* 9. LABOUR AVAILABILITY AND SKILLS*
Note: * topics are commonly discussed for both changeover and stripping.
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 4.2.1 CHAGE OVER Change over is referred to as the changing of the entire spent anode sets and cathode sets washing of cells, cleaning of bus bars and insulators and changing of electrolyte for starting a fresh chemical refinery process with the new set of copper anodes Change over involves cutting the power supply off from the bank which stops the electrolysis process and reduces the production period for copper cathodes. Thus this leads to the reduction in time efficiency. The major factors that influence the time required for change over are: 4.2.1.1 CELLHOUSE PREPARATIO: In cellhouse preparation for the change over there are many activities that are to be performed so as to complete the change over process: 1. Set up tools for alignment and water hose and necessary tools are brought near the bank which is to go through the changeover process. 2. Bank is locked out of the power supply and initially two cells are decanted of electrolyte. 3. Cathode plates of the cell are taken to CSM for stripping and then the scrap anodes are taken to the ASWM for washing. 4. Cells are washed thoroughly with water to remove slime. 5. Bus bar is cleaned and the insulators are cleaned and fixed. 6. Electrolyte is filled in the cells. 7. Fresh anodes are placed in the cells and aligned. 8. Fresh SS plates are placed in the cells as cathodes and aligned. 9. This process is carried out for all the cells in the bank. 10. The power is logged on to start the electrolysis process. In cell house preparation, the common delays that occur are the delay in slime washing. This delay occurs because sometimes the scrap anode falls inside the cell and it is to be removed manually. Even the draining away of the slime takes time. Also labourer’s inexperience plays a major role in cellhouse preparation. Cleaning and fixing of insulators with acid plays a part in the delay. Broken Insulators are replaced and aligned and alignment of the cathode and anode also causes delay in the changeover process. Delay in the anode and cathode delivery to the cellhouse also causes delay n the changeover process. This delay can occur due to many reasons related to the ASWM, CSM, APM and cranes which will be discussed further in the report.
25
IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 4.2.1.2 CATHODE STRIPPIG MACHIE (CSM): 4.2.1.2.1 Purpose: To strip copper from mother blanks and wash copper cathodes. 4.2.1.2.2 Operating Procedure of CSM: Crane places the set cathode plates on the loading beam. Loading wagon picks up a set of plates and transfers into the wash conveyor. The wash conveyor transports the plates through the wash chamber, where acid solution and impurities are washed off the cathode surface. The water temperature is kept high enough to ensure sufficient washing of cathodes. The wash water returned to circulation tanks. After completed washing deposited plates moves up to the end of the conveyor Where transfer device-1 transfers the plate to transverse conveyor. Standing on the transverse conveyor the plate moves sideways to the flexing device. The flexing device consists of two hydraulic cylinders, located, one on each side of the transverse conveyor. These cylinders will one at a time flex the plate sideways & thereby open up the top portion of the deposited copper on the stainless steel plates. After completed flexing operation, the plates continue into the chiselling station. The chisels are moved in to the openings obtained in the flexing operations between the copper plate and the mother blank. This force the copper plates to fall outward app 15 degrees where the plates are gripped by grippers mounted in the cathode downender. The down ender tilts the cathode further 75 degrees and bring into the horizontal position. Meanwhile the empty mother blanks moves sideways on the transverse conveyor to the empty station where it can be inspected for any defect init. After this station it reaches transfer device-2 which transfers the mother blanks on to the discharge conveyor. There after unloading wagon picks up the half load & transports to the unloading beams. After down ender has tilted cathodes into the horizontal position the cathodes are dropped on cathode conveyor. Again down ender returns to vertical position ready to down end new cathodes. The cathode conveyor transports the cathodes towards the cathode stacker, during this transport the cathode plate passes through sampling station &corrugating press. The corrugating press will press a pattern in the cathodes. The sampling press punches out button shaped sample for testing.
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 OTE: Usually the machine is operated in auto mode, but sometimes it can be operated in manual mode by giving ving pulse for each operation. This operation is carried out for the purpose of correcting faults, maintenance, or positioning the cathode plates prior to running in auto mode. One more mode called local mode, which is used for operating traverse conveyor to the required distance. Also downender section can be operated with help of panel box besides downender. FLOW DIAGRAM OF CSM
Fig 4.1
4.2.1.2.3 STADARD MACHIE HOURS REQUIRED: The machine speed for CSM is 500 plates/hr. Total no of plates in one bank =55plate X 28 cells = 1540 plates Standard time for stripping one bank = 1540/500 = 3hrs 4mins 48sec
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 Major areas that cause the functioning delay for CSM and the consolidated occurrence for the period of NOV’09-MARCH’10 is provided below: AREAS
CUMULATIVE TOTAL TIME
PERCENTAGE
PERCENTAGE
Wagon
2146
17.39341871
17.39341871
downender
2042
16.55049441
33.94391311
edge strip
1716
13.90825093
47.85216405
miscellaneous
1554
12.59523424
60.44739828
Chisel
1512
12.2548225
72.70222078
thin deposit
1147
9.296482412
81.99870319
Bottom envelope
1084
8.785864808
90.784568
transverse conveyor
292
2.36667207
93.15124007
transfer device
286
2.318041822
95.46928189
Cathode conveyor
266
2.155940995
97.62522289
stacker
211
1.710163722
99.33538661
discharge conveyor
42
0.340411736
99.67579835
weigh scale
27
0.218836116
99.89463446
hydraulic pump
13
0.105365537
100
wash conveyor
0
0
100
total delay
12338
Table 4.1 4.2.1.2.4 PARETO AALYSIS:
120 100 80 60 40 20 0
Series1 Series2
Fig 4.2
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 Major delay factor for CSM is the wagon area. Problems faced in the wagon area are: 1. Unloading wagon station sensor not working. 2. Loading wagon down operation not working 3. Loading wagon hoist gear box shaft pin damaged 4. Loading wagon not working in auto-mode 5. plates were jammed at unloading wagon 6. Loading wagon was not placing the plates at wash conveyor. Second major delay area is downender. The faults that usually occur in this area are: 1. L D/E 2 gripper hose punctured 2. R D/E2 gripper hose connector broken 3. R D/E2 tilt cylinder oil leakage Third most significant delay area is edge strip. Major delay factors in edge strip are: 1. plate stucked at chisel 2. plate fallen at chisel 3. Nodule plate jammed in unloading wagon 4. Damaged edge strip plate fallen at chisel 5. more no. of rejects due to damaged edge strip 6. Damaged plates were stucked @ chisel unit The delay problems are also divided among the departments as mechanical, electrical, process, instrumentation and cranes. The consolidated delay distribution of the departments from NOV’09-MARCH’10 is provided below: TOTAL DEPARTMET
TIME
CUMULATIVE PERCENTAGE
PERCENTAGE
process
5641
45.72053817
45.72053817
Mechanical
4303
34.87599287
80.59653104
Instrumentation
1371
11.11201167
91.70854271
Electrical
1023
8.291457286
100
Table 4.2
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 4.2.1.2.5 PARETO AALYSIS: 100 80 60 40 20 0 Electrical
Instrumentation
Mechanical
process
Series1 Series2
Fig 4.3 As we see in the Pareto chart, the major delay occurs in the process. Some of the process delays are: 1. Thin Deposit- multi flexing and chiselling done 2. Edge strip- No of rejects were more 3. Wagon- plates were jammed @ unloading wagon 4. Chisel- plates were jammed 5. Bottom Envelope- fallen at chisel unit 6. Transfer Device- Damaged edge strip stucked at chisel and TD1
The second major cause of delays comes under mechanical. Some of these delays are: 1. Downender- L - D/E 1 gripper in/out cylinder hose got punctured 2. Misc- Strapping tool problem 3. transverse conveyor- L flexing unit hose got puncture 4. Cathode Conveyor- Tension got loose and adjusted Under mechanical delays, downender is the critical area where most of the problem occurs.
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 4.2.1.3 AODE PREPARATIO MACHIE (APM):
4.2.1.3.1 Operating Procedure of APM: To attain verticality of the anode in the cell and smooth contact of the anodes with bus bar The anodes to be prepared are transported by the forklift to the receiving station of APM. The anodes are centred on the receiving station by the aligning press and they are moved to the transfer device number (TD1) by the receiving conveyor. The TD1 lifts the anodes one by one from the receiving conveyor to lug press. On the lug press, the lugs of the anodes are pressed horizontally. From the lug press, the TD1 lifts the anodes to the weighing unit. On the weighing unit the anodes are weighed and sorted as rejected and accepted anodes. From the weighing unit, the TD1 lifts the anodes to the beginning of the traverse conveyor. The traverse conveyor moves the anode through the body press and accepted anode is pressed vertically. From the end of the traverse conveyor rejected anodes are lifted to the reject conveyor by the reject feeder. The reject feeder moves the rejected anodes to the reject removing station. From the end of traverse conveyor the accepted anodes are lifted to the milling conveyor by TD2. The milling conveyor moves the anodes through milling unit to the lifting conveyor. In the milling conveyor the lugs of the anodes are milled. The lifting conveyor moves the anodes from the milling conveyor to the spacing conveyor. The spacing conveyor and the spacing devices space the anodes in the spacing conveyor, then the transferring wagon lifts 55 anodes at the time and moves them to the distribution beams. From the beam the anodes are lifted by the over head cranes.
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 FLOW DIAGRAM OF APM ANODES FROM TTK LUG PRESS (FLATTEN THE LUG) WEGHING UNIT
REJECTION STATION (ANODES REJECTED ON THE BASIS OF WEIGHT, CONICAL SHAPES, LUG THICKNESS BODY PRESS UNIT (STRIGHTEN THE BODY, MEASURE ANODE PHYSICAL DIMENSION
LUG SIDE MILLING FOR ACCEPTED ANODES (MILLS THE UNDER SIDE OF THE LUG)
SET OF 56 OR 54 ANODES FOR A CELLHOUSE
Fig4.4 4.2.1.3.2
STADARD MACHIE HOURS REQUIRED:
The machine speed for APM is 350 anodes /hr. Total no of anodes in one bank =56anodes X 28 cells = 1540 anodes Standard time for producing anodes for one bank = 1540/350 = 4hrs 24mins
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 Major areas that cause the functioning delay for APM and the consolidated occurrence for the period of NOV’09-MARCH’10 is provided below:
CUMULATIVE TOTLA TIME
AREA
PERCENTAGE
PERCENTAGE
Milling conveyor
830
31.8251534
31.8251534
TD1
458
17.5613497
49.3865031
Lifting conveyor
295
11.3113497
60.6978528
Traverse conveyor
280
10.7361963
71.4340491
TD2
165
6.32668712
77.7607362
Unloading wagon
150
5.75153374
83.5122699
power pack
150
5.75153374
89.2638037
Spacing conveyor
145
5.55981595
94.8236196
reject .conveyor
60
2.3006135
97.1242331
Receiving. Conveyor
40
1.53374233
98.6579755
miscellaneous
35
1.34202454
100
2608
total
Table 4.3 4.2.1.3.3PARETOAALYSIS: 100 90 80 70 60 50 40 30 20 10 0 miscellaneous
receiving.conveyor
reject .conveyor
Spacing conveyor
power pack
Unloading wagon
TD2
Traverse conveyor
Lifting conveyor
TD1
Milling conveyor
Series1
Fig 4.5
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Series2
Summer Internship Report 2010 The major factor for the delay in time is milling conveyor area. Some of the most commonly occurring problems of this area are: 1. Milling conveyor alignment got disturbed 2. Improper milling 3. Anode side milling sensor non sensing The second major problem area in the APM is transfer device. Some of the common problems occurring in the TD1 are: 1. lug bend anode fallen @td1 2. Due to improper chipping anodes fallen in td 1 The third most important area which pools into the major delays in the APM is lifting conveyor. The common problems occurring in this area is anode fallen in lifting conveyor. The delay problems are also divided among the departments as mechanical, electrical, process, instrumentation and cranes. The consolidated delay distribution of the departments from NOV’09-MARCH’10 is provided below:
TOTAL
CUMULATIVE
TIME
DEPARTMET
RECENTAGE
PERCENTAGE
PROCESS
1545
59.2407975
59.2407975
ISTRUMETATIO
733
28.1058282
87.3466258
MECHAICAL
330
12.6533742
100
ELECTRICAL
0
0
100
Table 4.4 4.2.1.3.4 PARETO AALYSIS: 100 80 60 40 20 0 ELECTRICAL
MECHANICAL
INSTRUMENTA TION
PROCESS
Series1 Series2
Fig 4.6
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 As we observe the Pareto chart we find that In APM the major delay occurs under process. Some of the most commonly occurring delays are: 1. TD1- Anode fallen at TD1 (Frequently) 2. Milling conveyor- Anode stucked at milling conveyor. 3. Receiving Conveyor- Anode lug got broken in receiving conveyor. 4. Powerpack- Cooling water outlet pipe line choke up. 5. Lifting conveyor- Anode fallen in lifting conveyor. The second most common delay is occurring under the instrumentation department. Some of them are as follows: 1. Milling conveyor- home position adjustment. 2. TD1- permissive sensor not sensing. 3. Unloading wagon- unloading wagon home position sensor adjusted.
4.2.1.4 AODE SCRAP WASHIG MACHIE (ASWM): 4.2.1.4.1 Operating Procedure of ASWM: Before starting the machine, oil in power packs is to be checked. Check wash water temperature, whether wash pump valves are opened or not. Anode scraps are placed on the loading beam by crane. Wagon lifts the set and places it on the receiving conveyor. From the receiving conveyor scrap is transferred to the wash conveyor by a transfer device. Wash conveyor moves through wash chamber that consist two pipelines for washing, one on the topside and one at the bottom side. Each line is having seven nozzles through which water is sprayed on the scrap so that slime adhering to the scrap gets washed and goes to the tank. In the wash conveyor scrap moves horizontally and after washing it passes through dryer so as to wipe water from the scrap. From the wash chamber scrap is moved by stacker and stacks it on the stacking table. The stacking table rotates 900 anti clock wise after every two stack so as to make uniform bundle. Each stack consists of two scraps. After completing the number of stack set in stack selector switch the table goes down. A set of fork comes in and takes away the bundle of scraps from the table to the stack conveyor. From the stack conveyor forklift unload the bundle and keep it scrap yard. The scraps are weighed for individual banks to find out scrap % for the particular bank. Wash water temperature is maintained at 800C for effective washing. Temperature is maintained with help of steam. After one bank washing is over wash water with slime sent to storage tank and tank
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 is cleaned. Fresh water is filled for next washing. Machine is usually operated in auto mode. It can be operated in manual and local mode when ever required. FLOW DIAGRAM OF ASWM Scrap anode from cellhouse by crane
Washing
Stacking & bundling
To SMELTER for recasting as anodes 4.2.1.4.2 STADARD MACHIE HOURS REQUIRED: The machine speed for ASWM is 350 anodes /hr. Total no of SPENT ANODES in one bank =56anodes X 28 cells = 1540 anodes Standard time for washing spent anodes for one bank = 1540/350 = 4hrs 24mins Major areas that cause the functioning delay for APM and the consolidated occurrence for the period of NOV’09-MARCH’10 is provided below: CUMULATIVE AREAS
TOTAL TIME
WAGO
880
29.38230384
29.38230384
WASH COVEYOR
580
19.36560935
48.74791319
DISCHARGE COVEYOR
318
10.61769616
59.36560935
TD
305
10.1836394
69.54924875
STACKER
290
9.682804674
79.23205342
STACK TABLE
190
6.343906511
85.57595993
COTROL PAEL
125
4.173622705
89.74958264
MISCELLAEOUS
100
3.338898164
93.0884808
RECEIVIG COVEYOR
97
3.238731219
96.32721202
FLAPPER
75
2.504173623
98.83138564
WASH CHAMBER
35
1.168614357
100
TOTAL
PERCENTAGE
PERCENTAGE
2995
Table 4.5
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 4.2.1.4.3 PARETO AALYSIS: 100 90 80 70 60 50 40 30 20 10 0 WASH CHAMBER
FLAPPER
RECEIVING CONVEYOR
MISCELLANEOUS
CONTROL PANEL
STACK TABLE
STACKER
TD
DISCHARGE CONVEYOR
WASH CONVEYOR
WAGON
Series1 Series2
Fig 4.7 In ASWM the most common area where the majority of the problems occur is wagon. Of the total delay time wagon has the largest share. Some of the common and frequently occurring problem in wagon area is: 1. Loading wagon hoist not working. 2. Loading wagon trolley damaged. 3. Anode stucked at unloading wagon. 4. Unloading wagon home position sensor malfunctioning. Secondly, the wash conveyor area is more prone to malfunction and cause the delays. Some of the commonly occurring delays in wash conveyor are: 1. Wash conveyor stuck up. 2. Wash conveyor link got broken. 3. Weak scrap stucked @ wash .conveyor.
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 The delay problems are also divided among the departments as mechanical, electrical, process, instrumentation and cranes. The consolidated delay distribution of the departments from NOV’09-MARCH’10 MARCH’10 is pro provided below:
CUMULATIVE DEPARTMET
TOTAL TIME
PERCENTAGE
PERCENTAGE
PROCESS
1108
36.99499165
36.99499165
MECHAICAL
977
32.62103506
69.61602671
ELECTRICAL
750
25.04173623
94.65776294
ISTRUMETATIO
160
5.342237062
100
Table 4.6 4.2.1.4.4 PARETO AALYSIS: 100 80 60 Series1 40
Series2
20 0 PROCESS
MECHANICAL
ELECTRICAL
INSTRUMENTATION
Fig 4.8 As we see in the Pareto chart, the major delay occurs in the process. Some of the process delays are: 1. Stacker- Week scraps stucked at stack table. 2. Wash conveyor- Week scrap stucked at wash conveyor. 3. Receiving conveyor- Bridge broken scrap stucked at receiving conveyor. 4. Stack Table- Week scrap stucked at stack table. 5. TD- scraps continuous fallen in TD. The second major cause of delays comes under mechanical. Some of these delays are: 1. Wash conveyor- Wash conveyor link got cut. 2. Stacker- Flapper topside guider got bent. 3. Wash conveyor- wash conveyor guider bent.
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 4.2.1.5 CRAES WMI CRAES LTD., one of the leading manufacturers of Cranes in India, has been pioneers in the manufacture of Material Handling Equipment in the Country. Today WMI`s name is synonymous with heavy lifting. WMI’s equipment can be found in all parts of the Country, helping others get their jobs done faster and easier. An array of WMI cranes have been developed, each crane a creative solution to special handling problem. These cranes are extensively used for handling materials in machine shops, structural shops, chemical plants, fertilizer plants, cement factories, paper plants, stock yards, Dams, and construction sites. All WMI cranes are engineered and built to meet the requirements of all the users. Thus tailormade for the job, these units handle the loads with utmost ease of maintenance efficiency and economy. 4.2.1.5.1 E. O. T. CRAES These cranes move on the gantry rail fixed to gantry girder. In this crane 3 common motions are incorporated - hoist, cross travel and long travel. In addition to these common motions some time depending on duty, Aux. Hoist is incorporated. Hoist and C. T. Machineries are fitted on common frame called crab which moves on crane girders. In refinery, there are two EOT cranes. These cranes play major role in the overall functioning of the refinery whether it be cellhouse, CSM, APM, or ASWM. Even in regular activities other than processes the crane plays a significant role in the refinery. Any delay caused by the crane causes a major delay in all the machineries and the processes. Some of the major delays occurred in CRANE-1 in NOV-09 TO MARCH-10 are given below: DELAY AREAS
TOTAL
LT
1292
MH
1105
DSL
730
DRIP TRAY
311
HOOK
145
COMPRESSOR
113
REMOTE PAEL
60
CT
40
AH
0
LIK
0
SPREADER BEAM
0
Table 4.7
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 4.2.1.5.2 PARETO AALYSIS: 100 90 80 70 60 50 40 30 20 10 0
Series1 SPREADER BEAM
LINK
AH
CT
REMOTE PANEL
COMPRESSOR
HOOK
DRIP TRAY
DSL
MH
LT
Series2
Fig 4.9 In crane-11 the area which has frequent problem delay is the long travel. Some of the common delays in long travel are as follows: 1. LT got tripped. 2. LT PLC problem. 3. LT slow movement. 4. LT brake problem. 5. LT 2 drives taking delay. The second area which causes the major delay in crane crane-1 1 is main hoist. Some of the common problems are as follows: 1. MH got tripped. 2. MH not getting down (Due to drip tray L/S activated). 3. MH brake not good. Third most delay prone area is the DSL. Some common problems occurring in DSL are: 1.
Remote signal cut off problem.
2. Whole crane got tripped.
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 The delay problems are also divided among the departments as mechanical, electrical, process, instrumentation and cranes. The consolidated delay distribution of the departments from NOV’09-MARCH’10 is provided below: DELAY AREAS
TOTAL
MECHAICAL
1368
ELECTRICAL
3196
ISTRUMETATIO
12
PROCESS
178
CRAES
0 Table 4.8
4.2.1.5.3 PARETO AALYSIS: 100 80 60 40 20 0 CRANES
INSTRUMENTATI ON
PROCESS
MECHANICAL
ELECTRICAL
Series1 Series2
Fig 4.10 Electrical problems are the major delay causes in the crane-1. Some of the common mechanical problems faced by the crane-1 are as follows: 1. MH- M.H got tripped. 2. DSL- Remote signal cut off problem. 3. Drip tray- Drip tray got tripped. 4. CT- CT got tripped Secondly, mechanical problems cause delay in large number for crane-1. Some of these problems are: 1. LT- abnormal sound in rails. 2. Link- Cathode hook link got broken. 3. Hook- Anode hook struck up problem.
41
IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 Some of the major delays oc occurred in CRANE-2 in NOV-09 09 TO MARCH-10 MARCH are given below: DELAY AREAS
TOTAL
MH
582
COMPRESSOR
160
AH
145
DSL
135
CT
97
LT
80
HOOK
47
LIK
45
SPREADER BEAM
20
DRIP TRAY
0
REMOTE PAEL
0
Table 4.9 4.2.1.5.4 PARETO AALYSIS: 100 90 80 70 60 50 40 30 20 10 0
Series1
REMOTE PANEL
DRIP TRAY
SPREADER BEAM
LINK
HOOK
LT
CT
DSL
AH
COMPRESSOR
MH
Series2
Fig 4.11 As we see the Pareto chart, it is clear that in crane -2 2 the major problem causing area is the main hoist. Some of the problems frequently occurring in the main hoist are as follows: 1. MH brake not good. 2. M.H got tripped.
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 The delay problems are also divided among the departments as mechanical, electrical, process, instrumentation and cranes. The consolidated delay distribution of the departments from NOV’09-MARCH’10 is provided below: DELAY AREAS
TOTAL
ELECTRICAL
1268
PROCESS
94
MECHAICAL
77
ISTRUMETATIO
0
CRAES
0 Table 4.10
4.2.1.5.5 PARETO AALYSIS: 100 90 80 70 60 50 40 30 20 10 0
Series1 CRANES
INSTRUMENTATION
MECHANICAL
PROCESS
ELECTRICAL
Series2
Fig 4.12 Electrical problems are the major delay causes in the crane-1. Some of the common mechanical problems faced by the crane-1 are as follows: 1. MH- M.H got tripped. 2. DSL- Remote signal cut off problem. 3. Drip tray- Drip tray got tripped. 4. CT- CT got tripped In crane-2 the second delay causing problem is process delays. Some of the common process delays is Hook- Cathode hook link got broken/bend.
43
IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 4.2.1.6 OPERATOR SKILLS AD EXPERIECE: operators handling the various machines mentioned above are also reponsible for the time efficiency. The higher the skill and experience of the operator the smoother the various activities required to carry out the process takes place. Crane operators and ASWM and CSM operators should be highly efficient and with enough knowledge to understand the critical areas where the usual delay occurs and try to work out ways to tackle them. Regular training and knowledge sharing sessions are essential for them. 4.2.1.7 FORKLIFT AVAILABILITY: Forlifts availability to load the APM machine, to remove the rejected anodes, to shift the spent anodes from ASWM, to bring the fresh anode from the despatch yard, to carry the cathode plates from CSM to the Warehouse/front yard is important for the time efficiency. Due to the non availability of the forklifts the processes linked with it are also affected and this later affects the time efficiency. Proper planning is required for the proper utilization of the forklifts and scheduling the work. This will help in availability of the forklifts for the major activities essential and important to time effieciency. 4.2.1.8 PREVETIVE MAITEACE:
For the effective functioning of all the
machinary, maintenanace is a very essential aspect. Scheduled and preventive maintenance is necessary. Time efficiency reduces when the machines are not properly maintained and breakdown occurs. Because of lack of preventive maintenance the machines may malfunction during the process and this will lead to delay. 4.2.1.9 LABOUR AVAILABILITY AD SKILLS: labours are required to perform various activities in the cellhouse preparation and machine functioning. Unavailability of labours during the process of changeover and machine operations leads to delay and affects the time efficiency. Also the skill set possessed by the labour to do the particular job plays a critical role in the time delay. If the labour is new and inexperienced then the cleaning process of the cell house and machinery gets delayed. Willingness of the labour to work also plays a very essential role in the performance of his duties.
44
IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 4.2.2 STRIPPIG Stripping is the process of removing the cathode copper plates from the SS plates which were deposited during the electrolysis process. For each bank stripping process is carried out thrice (three crop cycle). For the stripping process the machine used is CSM. For the purpose of stripping each bank in its completion of one crop cycle is logged out and plates carried to CSM. Stripping process on an average takes 4.3hrs which higher than the standard i.e. 3hrs 4mins. This delay in the stripping time iss due to the various factors influencing the process. They are: 1. CSM PERFORMANCE * 2. CRANE PERFORMANCE * 3. OPERATORS SKILL AND EXPERIENCE* 4. FORKLIFT AVAILABILITY* 5. PREVENTIVE MAINTENANCE* 6. LABOUR AVAILABILITY AND SKILLS* All of these factors have been discussed under the changeover. By improving the performance of each of these factors the time delay can be reduced and the stripping time can be brought close to its standard time and thus increase the time efficiency by logging the bank in the circuit and starting the copper deposition by electrolysis process. 4.2.3 RECTIFIERS In the refinery, there are four rectifiers used for the conversion of A.C to D.C for the entire cellhouse system.rectifiers used here are: One 15KA Rectifier and other 35 KA rectifier. Due to tripping of the rectifier the entire bank gets logged out and this tends to the stoppage in the production of the copper and reduces the time efficiency of the refinery unit. 4.2.4 MISCELLAEOUS There are some factors which are not in control of the refinery unit but affect the output of the unit. Some of these factors are: 1. Anode availability: as per the availability of the anodes the cells can be utilized for the production of copper. Due various reasons in the smelter, the production of anodes fluctuates and thus the availability for the refinery unit also changes. This in turn reduces the number of banks under production and the time efficiency reduces. 2. Demand for copper in the market: according to the market demand the planning for production is done by the higher management. If the requirement fo r the copper is reduced then the production of the copper is also reduced. Thus some of the banks are logged off and no production takes place thus the time efficiency of the unit reduces.
45
IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 PROJECT 2: FORKLIFT MOTIO STUDY AD UTILIZATIO 4.3 ABOUT THE FORKLIFTS A forklift (also called a lift truck, a high/low, a stacker-truck, trailer loader, sideloader, fork truck, tow-motor or a fork hoist) is a powered industrial truck used to lift and transport materials. The modern forklift was developed in the 1920s by various companies
including
the transmission manufacturing
company Clark and
the
hoist
company Yale & Towne Manufacturing. The forklift has since become an indispensable piece of equipment in manufacturing and warehousing operations. The middle 19th century through the early 20th century saw the developments that led to today's modern forklifts. The Pennsylvania Railroad in 1906 introduced battery powered platform trucks for moving luggage at their Altoona, Pennsylvania train station. World War I saw the development of different types of material handling equipment in the United Kingdom by Ransoms, Sims and Jeffries of Ipswich. This was in part due to the labour shortages caused by the war. In 1917Clark in the United States began developing and using powered tractor and powered lift tractors in their factories. In 1919 the Towmotor Company and Yale & Towne Manufacturing in 1920 entered the lift truck market in the United States. Continuing development and expanded use of the forklift continued through the 1920s and 1930s. World War II, like World War I before, spurred the use of forklift trucks in the war effort. Following the war, more efficient methods for storing products in warehouses were being implemented. Warehouses needed more manoeuvrable forklift trucks that could reach greater
heights.
New
forklift
models
were
made
that
filled
this
need. In
1956 Toyota introduced its first lift truck model, the Model LA, in Japan and sold its first forklift in the United States in 1967. Forklifts are rated for loads at a specified maximum weight and a specified forward centre of gravity. This information is located on a nameplate provided by the manufacturer, and loads must not exceed these specifications. In many jurisdictions it is illegal to remove or tamper with the nameplate without the permission of the forklift manufacturer. An important aspect of forklift operation is that most have rear-wheel steering. While this increases manoeuvrability in tight cornering situations, it differs from a driver’s traditional experience with other wheeled vehicles. While steering, as there is no caster action, it is unnecessary to apply steering force to maintain a constant rate of turn. Another critical characteristic of the forklift is its instability. The forklift and load must be considered a unit with a continually varying centre of gravity with every movement of the load. A forklift must never negotiate a turn at speed with a raised load,
46
IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 where centrifugal and gravitational forces may combine to cause a disastrous tip-over accident. The forklift are designed with a load limit for the forks which is decreased with fork elevation and undercutting of the load (i.e. load does not butt against the fork "L"). A loading plate for loading reference is usually located on the forklift. A forklift should not be used as a personnel lift without the fitting of specific safety equipment, such as a "cherry picker" or "cage".
FIG 4.13 4.4 FORKLIFTS I EOU: Export Oriented Unit (EOU) of Sterlite Industries India Limited has ten Forklifts on contract for its varied usage inside the premises. The allocation of the forklifts is done in the following manner: 1. Refinery -3ton forklifts (2 nos.) 5ton forklifts (2 nos.) 2. Logistics -3ton forklifts (1 nos.) 5ton forklifts (2 nos.) 3. CCR
-3ton forklifts (1 nos.) 5ton forklifts (1 nos.)
4. Dore
-3ton forklifts (1 nos.) (*not considered in this study)
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 4.4.1 REFIERY In refinery division of EOU, the forklifts core activities are: 1. Brining the fresh anodes from despatch yard to the anode yard. 2. Taking the spent anode from anode yard to the smelter. 3. Taking the cathode from CSM to CSM yard after weighment. Various miscellaneous activities are also performed by these forklifts. They are: 1. Handling and shifting DO Briquette from DO plant to smelter. 2. Spent anode arrangement in the yard. 3. Handling and shifting of DO powder, copper nodules, milling chips. 4. Miscellaneous scarp handling 4.4.1.1 TIME CALCULATIOS Shifting Fresh Anodes from despatch yard to anode yard include one more activity of weighing the anodes this activity starts from chipping yard to weigh scale and weigh scale to despatch yard storing area and from despatch yard to anode yard. (FRESH AODE) TOTAL TIME
S.O
LIFTIG TIME
CHIPPIG YARD TO WEIGH SCALE
1 2 3 4 5
12 10 10 15 20
40 45 50 40 47
WEIGH SCALE WAITIG TIME
WEIGH SCALE TO DESPATCH ZOE
15 10 10 15 12
25 35 15 20 25
LAYIG TIME
DESPATCH ZOE TO CHIPPIG YARD
MI
SEC
8 7 15 15 10
35 30 40 35 40
2 2 2 2 3
15 17 20 20 34
AVERAGE
2
21.2
Table 4.11
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 TOTAL TIME
5-TO FORKLIFT
S.O 1 2 3 4 5
LIFTIG TIME 15 10 5 10 15
DESPATCH ZOE TO AODE LAYIG YARD TIME 70 30 80 15 55 20 50 15 60 17
3-TO FORKLIFT
S.O 1 2 3 4 5
LIFTIG TIME 20 10 15 10 20
DESPATCH ZOE TO AODE YARD 60 65 50 70 75
LAYIG TIME 20 45 45 20 20
AODE YARD TO DESPATCH ZOE MI SEC 50 3 45 45 2.5 30 40 2 0 45 2 0 50 2 22 TOTAL 2 19 TOTAL TIME AODE YARD TO DESPATCH ZOE 40 45 40 50 45 TOTAL
MI SEC 2 20 2.8 45 2.5 30 2.5 30 3 40 2 33
Table 4.12 Presently no weighment is done in the anode yard due to some problem in weigh scale.
49
IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 Shifting Spent Anode includes carrying the spent anode from anode yard to smelter yard passing three check posts.
WAITING TIME IN CHECKPOST-2
CHECKPOST-2 TO CHECKPOST-3
WAITING TIME IN CHECKPOST-3
CHECKPOST-3 TO SMELTER YARD
SMELTER YARD TO ANODE YARD
MIN
SEC
5
30
50
8
25
50
1
30
120
5.7
44
22
8
30
55
7
23
47
3
24
106
5.4
25
3
28
7
28
45
10
35
60
1
30
115
6.0
59
4
30
10
32
60
11
25
50
3
28
125
6.2
14
5
20
8
20
45
8
30
40
1
25
105
5.0
2
15
10
25
60
10
35
45
2
20
110
5.5
32
7
20
7
27
50
10
30
60
3
20
105
5.5
32
8
20
10
25
40
5
30
45
2
20
105
5.0
2
6
5-TON
SEC
WEIGH SCALE TO CHECKPOST-2
25
MIN
WAITING TIME IN WEIGH SCALE
3-TON
CHECKPOST-1 TO WEIGH SCALE
2
WAITING TIME IN CHECKPOST-1
1
AVERAGE
ANODE YARD TO CHECK POST-1
FORKLIFT TYPE
S.NO
TOTAL TIME
5.8
35 .5
5
17
Table 4.13 Shifting Cathode includes carrying the cathode from the CSM machine to weigh scale and from there to the CSM yard
3-TON FORKLIFT of CSM
S.NO 1 2 3 4 5
LIFTING TIME 15 10 10 10 15
CSM TO WEIGH SCALE 10 15 17 20 15
WAITING TIME AT WEIGH SCALE 80 90 80 70 65
TOTAL TIME
WEIGH SCALE TO CSM YARD 50 45 40 45 50 TOTAL
MIN
SEC
2.6 2.7 2.45 2.42 2 2.51
Table 4.14
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
35 40 27 25 25 30.4
Summer Internship Report 2010 4.4.1.2 UTILIZATIO OF FORKLIFTS 3-TON FORKLIFT DEDICATED TO CSM YARD
HR
MIN
SEC
0 -8.5E13 0 0 2.56E12
MAXIMUM OUTPUT IN ONE STRIPPING(BUNDLES) TIME FOR SHIFTING 1 BUNDLE FROM MACHINE TO CSM YARD NO OF STRIPPING IN A DAY TIME FOR SHIFTING 84 BUNDLES IN EACH STRIP(3)
84 150 3 37800
10.5
30
20% OF TOTAL AVAILABLE HOUR FOR MISCELLANEOUS 30 MIN PER SHIFT REFRESHMENT TIME 30 MIN PER SHIFT BREAKDOWN TIME
17280 5400 5400
4.8 1.5 1.5
48 30 30
TOTAL TIME UTILIZATION OF FORKLIFT (%)
65880 76.25
18.3
18
Table 4.15 CONSIDERING CHANGE OVER N STRIPPING TIME SEPERATELY MAXIMUM OUTPUT IN ONE STRIPPING(BUNDLES) AVERAGE SECONDSS USED FOR 2 STRIPPING AVERAGE STRIPPING TIME FOR A CHANGEOVER 10% OF TOTAL AVAILABLE HOUR FOR MISCELLANEOUS 30 MIN PER SHIFT REFRESHMENT TIME 30 MIN PER SHIFT BREAKDOWN TIME TOTAL TIME UTILIZATION OF FORKLIFT (%) TOTAL TIME FOR 84 BUNDLES OF CHANGE OVER IDLE TIME FOR FORKLIFT DURING CHANGE OVER
84
8.8 8.5
48 30
8640 2.4 5400 1.5 5400 1.5 81804 22.72333 94.68056 12600 3.5 18000 5
24 30 30 43.4
SEC 2.56E12 0 -4.3E13 0 0 24
30 0
0 0
31680 30600
HR
MIN
Table 4.16 During the stripping time the forklift may have to take small delays of one minute or more in multiple chances and these times cannot be utilized for any other purpose and so stripping time has to be taken as complete for the forklift usage even if it is not utilized. In the same way during changeover there are some delays which cannot be utilized but some big delays can be used for shifting cathode from the CSM yard to the front yard or warehouse.
51
IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 1-3TON AND 2-5TON FORKLIFT FOR APM YARD SPENT ANODE HR NO OF BUNDLES TO BE SHIFTED IN A DAY 50 YTIME FOR SHIFTING 1 BUNDLE 334 TIME FOR SHIFTING 50 BUNDLES 16700 4.6 FRESH ANODE NO OF BUNDLES TO BE SHIFTED FROM DESPATCH TO ANODE YARD IN A DAY 268 TIME TAKEN FOR SHIFTING 1 BUNDLE 141 TIME TAKEN FOR SHIFTING 268 BUNDLE 37788 10.5 FRESH ANODE WEIGHMENT TIME TAKEN TO WEIGH ONE BUNDLE 140 NO OF BUNDLES TO BE WEIGHED 268 TIME TAKEN FOR WEIGHING 268 BUNDLE 37520 10.4 20% OF TOTAL AVAILABLE HOUR FOR MISCELLANEOUS 17280 4.8 30 MIN PER SHIFT REFRESHMENT TIME 5400 1.5 30 MIN PER SHIFT BREAKDOWN TIME 5400 1.5 AVERAGE APM RUNNING HRS IN A MONTH 900000 250 AVERAGE APM RUNNING HRS IN A DAY 30000 8.333333 AVERAGE RUNNING HRS FOR ASWM IN A MONTH 900000 250 AVERAGE RUNNING HRS FOR ASWM IN A DAY 30000 8.333333 TOTAL TIME FOR 3 FORKLIFTS 180088 50.0 UTILIZATION (%) 69.4784
MIN
SEC
38.3
20.0
29.8
48.0
25.3 48.0 30.0 30.0
20.0 0.0 0.0 0.0
1.5
28.0
Table 4.17
In APM yard the utilization of forklifts keep on shifting as per the running of the APM machine and ASWM machine. Placing the spent anode from the machine to the yard is included in the miscellaneous activities other than this shifting of heavy materials and products from D/O plant. In this the average running hours of the two machines are also included because when the machines are running then the forklifts are engaged in feeding the APM emptying the ASWM and weighment of spent anodes.
52
IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 4.4.2 LOGISTICS In logistics the core activities that the forklifts perform are: 1. Shifting of cathode bundles from CSM yard to front yard or warehouse. 2. Shifting the cathode bundles from front yard to CCR furnace. 3. Loading the truck with cathode plate bundles. 4. Loading the trucks with coils. Various miscellaneous activities of the forklifts at logistics are: 1. Shifting of coils as per the truck loading requirements. 2. Arrangement of the warehouse according to the sections.
4.4.2.1 TIME CALCULATIOS Shifting Cathode Bundles from the CSM yard to the warehouse by going through one check post.
S.O 1 2 3 4 5 6 7 8 9 10
WAREHOUSE TO CSM LIFTIG YARD TIME 45 15 55 10 65 10 70 13 60 12 58 10 50 15 56 15 59 10 70 12
CSM YARD TO WAREHOUSE 3-ton WAITIG LAYIG CSM YARD TIME AT THE TO PLATE WAREHOUSE CHECKPOST 70 1 5 75 1 3 70 2 5 65 3 5 75 1 7 72 2 4 70 1 5 70 1 6 75 3 4 73 3 5 AVERAGE
TOTAL TIME
MI 2 2 2.5 2.6 2.6 2 2 2 2.5 2.7 2.5
Table 4.18
53
IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
SEC 16 24 32 36 35 26 21 28 31 43 29.2
Summer Internship Report 2010 Shifting of Cathode Bundles from the CSM yard to the front yard. The security check occurs only after keeping the cathode bundles in the yard as these bundles are meant to be fed in the CCR furnace for making coils CSM YARD TO FROT YARD
S.O 1 2 3 4 5 6 7 8 9 10
FROT YARD TO LIFTIG TIME CSM YARD 60 15 60 10 70 15 65 13 67 11 70 16 63 10 65 15 59 13 70 10
3-ton CSM YARD TO WAITIG FROT TIME AT YARD CHECKPOST 75 1 70 1 70 1 80 2 78 3 75 1 65 1 70 2 80 3 75 3
TOTAL TIME LAYIG THE PLATE 3 2 5 8 3 7 5 5 8 10 AVERAGE
MI 3 2 2.7 2.8 2.7 3 2 3 2.7 2.8 2.6
SEC 34 23 41 48 42 49 24 37 43 48 38.9
Table 4.19
Loading The Truck With Coils And Cathode Bundles from the warehouse to the truck by passing though the weigh scale and the check post. These coils are meant to for the export and trucks come to the front yard for loading. WAREHOUSE TO TRUCK
54
STORAGE AREA TO WEIGH SCALE 10 10 14 15 12 Table 4.20
WAITIG TIME AT WEIGH SCALE 20 5 8 7 10
WEIGH SCALE TO TRUCK 20 25 20 25 25
TRUCK LOADIG 3 3 2 5 8
TRUCK TO STORIG SPACE 20 25 25 20 20 AVERAGE
IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
SEC
S. O 1 2 3 4 5
LIFTIG THE BUDLE 3 4 3 2 4
MI
TOTAL TIME
5-ton
1 1 1 1 1 1
16 12 12 14 19 15
Summer Internship Report 2010 Shifting The Cathode Bundles from front yard to the CCR furnace for feeding the cathodes into the furnace to make coils. The bundles have to go through one check post. FROT YARD TO CCR TOTAL TIME
5-ton
S.O
LIFTIG THE BUDLE
FROT YARD TO CHECKPOST1
WAITIG TIME AT CHECKPOST1
CHECKPOST TO PLATE STACKKIG AREA
LAYIG THE PLATE
PLATE STACKIG AREA TO FROT YARD
MI
SEC
1
5
45
1
60
3
90
3
24
2
5
50
3
65
5
105
3.9
53
3
4
47
2
55
4
96
3
28
4
6
55
3
70
5
95
3.9
54
5
8
50
1
65
3
100
3.8
47
6
5
45
2
70
4
90
3.6
36
Table 4.21
AVERAGE
3.7
4.4.2.2UTILIZATIO OF THE FORKLIFTS 3TO FORKLIFT DEDICATED TO CSM YARD HR
MI
SEC
TIME FOR SHIFTIG OE BUDLE CATHODE FROM CSM YARD O OF BUDLES TO BE SHIFTED FROM 1 STRIPPIG O OF BUDLES TO BE SHIFTED FROM 3 STRIPPIGS I A DAY TIME FOR SHIFTIG TOTAL BUDLES I A DAY 20% OF TOTAL AVAILABLE HOUR FOR MISCELLAEOUS
40068
11.1
7.8
48.0
17280
4.8
48.0
0.0
30 MI PER SHIFT REFRESHMET TIME
5400
1.5
30.0
0.0
30 MI PER SHIFT BREAKDOW TIME
5400
1.5
30.0
0.0
TOTAL TIME
68148
18.9
55.8
48.0
UTILIZATIO (%)
78.875
159 84 252
Table 4.22 The 3-ton forklift is dedicated to the shifting of cathode bundles from the CSM yard to the Warehouse or the front yard. Other miscellaneous works that this forklift performs is to take the bundles for repacking if required. The forklift is utilized for 78.87% throughout a day.
55
IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
44
Summer Internship Report 2010
TRUCK LOADIG (COIL) TIME TAKE FOR LOADIG OE COIL
HR
MI
SEC
3.0
0.0
0.0
90
O OF COILS I OE TRUCK
8
O OF TRUCKS I A DAY
15
TIME FOR LOADIG ALL TRUCKS
10800
TIME FOR COIL ADJUSTMET PER TRUCK
1200
TIME FOR COIL ADJUSTMET FOR ALL TRUCKS
18000
5.0
0.0
0.0
TOTAL TIME FOR COIL LOADIG
28800
8.0
0.0
0.0
SET UP TIME(FORKLIFT ARM CHAGE)10 TIMES FOR 10 MI
6000
3.8
45.0
0.0
8.9
52.8
48.0
TRUCK LOADIG (CATHODE) TIME FOR LOADIG OE BUDLE CATHODE
90
O OF CATHODE BUDLES I OE TRUCK
10
O OF TRUCKS I A DAY
15
TIME FOR LOADIG ALL TRUCKS
13500
CATHODE BUDLES TO CCR TIME FOR SHIFTIG OE BUDLE CATHODE TO CCR FURACE
222
O OF CATHODE BUDLES SHIFTED I A DAY
144
TIME FOR SHIFTIG ALL BUDLES I A DAY
31968
20% OF TOTAL AVAILABLE HOUR FOR MISCELLAEOUS
17280
4.8
48.0
0.0
30 MI PER SHIFT REFRESHMET TIME
5400
1.5
30.0
0.0
30 MI PER SHIFT BREAKDOW TIME
5400
1.5
30.0
0.0
TOTAL TIME
108348
30.1
5.8
48.0
TOTAL AVAILABLE HRS OF TWO FORKLIFTS
172800
48.0
0.0
0.0
UTILIZATIO (%)
62.70139
Table 4.23 Shifting the Cathode Bundles and Coil from the warehouse to the trucks is done by 5-ton forklifts. For loading the coils a prior shifting of coils inside the warehouse is required according to the requirement of the exports as per weight and batch no. The utilization of the two 5ton forklifts is low as 62.701%.
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 4.4.3 CCR In CCR the core activities for the forklifts are: 1. Shifting the coils from the CCR to the warehouse. 2. Loading the feeder of the furnace with cathode bundles. 3. Shifting the coils inside the CCR for various processing activities. Apart from this the other miscellaneous activities that the forklifts perform are: 1. Shifting of the wooden pallets from the CCR front yard to inside. 2. Shifting the necessary cylinders from the stores to the plant. 3. Carrying the copper bars from the cutting area to the feeder yard. 4. Shifting of heavy materials in the plants. 4.4.3.1 TIME CALCULATIOS Shifting Of Coil from the CCR to the warehouse by passing through two check posts, one at CCR and the other at Warehouse. CCR TO WAREHOUSE( COIL) TOTAL TIME
S.O 1 2 3 4 5 6 7 8 9 10
57
LIFTIG THE COIL FROM WEIGH SCALE 5 8 7 5 7 7 5 8 5 6
WEIGH SCALE TO WAREHOUSE 90 80 85 82 85 80 90 75 85 83 Table 4.24
WAITIG TIME AT CHECKPOST 5 10 3 4 4 8 10 5 7 4
LAYIG THE WAREHOUSE COIL TO CCR 5 75 3 65 4 45 4 60 5 70 5 80 4 65 3 70 4 50 7 75 AVERAGE
MI
SEC
3 2.8 2.4 2.6 2.9 3 2.9 2.7 2.5 2.9 2.8
IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
0 46 24 35 51 0 54 41 31 55 33.7
Summer Internship Report 2010 Feeding The Furnace with the cathode bundles from the CCR yard to the feeder. Activities like cutting of strap and washing of cathode is done prior to feeding the cathode to the furnace. FEEDIG THE FURACE TOTAL TIME
S.O 1 2 3 4 5 6 7 8 9 10
LIFTIG THE CATHODE BUDLE 5 8 7 5 7 7 5 8 5 6
CCR YARD WAITIG TO TIME AT WASHIG WAITIG FEEDER WASHIG WASHIG AREA TO TIME AT TO CCR AREA YARD AREA FEEDER FEEDER 10 10 8 75 13 12 10 7 65 14 15 10 9 45 15 11 15 8 60 10 10 15 7 70 15 13 14 7 80 13 15 13 9 65 12 13 16 8 70 14 12 15 9 50 15 12 10 7 75 15 AVERAGE
MI 2 2 2 2 2 2 2 2 2 2 2.0
Table 4.25 Activities inside the CCR
LIFTI G THE COIL
COILER TO COOLI G AREA
LAYIG THE COIL
LIFTI G THE COIL
COOLIG AREA TO COMPACTO R
LAYIG THE COIL
LIFTI G THE COIL
1
4
10
5
4
8
10
5
2
5
11
5
4
10
7
6
3
6
15
3
6
13
10
4
4
4
13
6
4
9
9
5
5
5
12
5
11
8
5
COMPACT OR TO STRECH PACKIG
LAYG THE COIL
LIFTIG THE COIL
7 STRECH PACKI G TO PACKI G
LAYI G THE COIL
LIFTIG THE COIL
PACKI G TO WEIGH SCALE
LAYI G THE COIL
10
4
5
10
5
4
12
4
10
3
4
14
6
7
15
5
13
6
6
11
5
6
14
5
15
5
4
15
5
3
16
4
14
5
5
12
4
5
15
6
S.O
58
IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
SEC 1 56 41 49 4 14 59 9 46 5 28.4
Summer Internship Report 2010
WEIGH SCALE TO EW PALLET STORAGE
LIFTIG THE PALLET
PALLET AREA TO WEIGH SCALE
WAITIG TIME AT WEIGH SCALE
15
3
15
10
13
5
15
14
4
20 17
WEGH SCALE TO PALLET STORAGE AREA
LIFTIG THE PALLET
PALLET STORAGE AREA TO COILER
LAYIG THE PALLET
14
5
13
5
3
0
9
14
4
14
5
3.2
11
14
14
15
4
13
5
3.4
26
5
17
15
17
5
16
4
3.6
36
5
15
10
15
6
15
6
3.5
28
3.336667
20.2
Table 4.26
AVERAGE
MI
SEC
Inside the CCR plant the forklift has to take the coil bundle to the cooler for cooling and then to the compactor for compacting the coil bundle and then to the stretch packing section so as to pack the coil with this plastic film and then to the final packing section where it is strapped and then packed. After the final packing the coil taken to the weigh scale where it is weighed and then send to warehouse. 4.4.3.2 UTILIZATIO OF THE FORKLIFTS 3TO FORKLIFT DEDICATED TO FURACE TIME TAKE TO FEED I THE FEEDER O OF FEEDS I A DAY TOTAL TIMEE FOR FEEDIG 50% OF TOTAL TIME FOR MISCELLAEOUS ACTIVITIES 30 MI PER SHIFT REFRESHMET TIME 30 MI PER SHIFT BREAKDOW TIME TOTAL TIME UTILIZATIO (%) Table 4.27
148 120 17760 43200 5400 5400 71760 83.05556
HR
MI
SEC
4.9
56.0
0.0
12.0 1.5 1.5 19.9
0.0 30.0 30.0 56.0
0.0 0.0 0.0 0.0
3 TON forklift dedicated to the feeder to feed cathode bundles to the furnace as the utilization of 83.1%. Other than feeding the furnace, other activities make the major share of the activities in a day. These activities include carrying materials from store and carrying copper bars from the cutting area to the feeder yard.
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010
5TO FORKLIFT TIME FOR SHIFTIG COIL AD PALLET ISIDE CCR O OF COILS PRODUCED I A DAY TOTAL TIME FOR COIL COIL TO WAREHOUSE TIME TAKE TO SHIFT OE COIL O OF COILS PRODUCED I A DAY TIME TO SHIFT ALL COILS TO WAREHOUSE 20% OF TOTAL AVAILABLE HOUR FOR MISCELLAEOUS 30 MI PER SHIFT REFRESHMET TIME 30 MI PER SHIFT BREAKDOW TIME TOTAL TIME UTILIZATIO (%) Table 4.28
HR
MI
SEC
200 96 19200
5.3
20.0
0.0
158 96 15168
4.2
12.8
48.0
4.8 1.5 1.5 17.3
48.0 30.0 30.0 20.8
0.0 0.0 0.0 48.0
17280 5400 5400 62448 72.27778
5-TON forklift is used majorly for shifting the coils from CCR to warehouse. Shifting of coils inside CCR for other processes is also performed by it. Bring the wooden pallet from the CCR front yard to inside and weighment are some other activities included in the miscellaneous activities of this forklift.
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 CHAPTER 5 RESULTS AD SUGGESTIOS 5.1 TIME EFFICIECY: COSOLIDATED TIME EFFICIECY OV’09-MARCH’10 TOTAL RUIG HRS 12073.45 14417.36 10346.94 9283.44 11645.09 57766.28
TOTAL O OF BAKS 677.14 699.71 699.71 632 699.71
MOTH OVEMBER DECEMBER JAUARY FEBRUARY MARCH
EXPECTED TOTAL RUIG HRS 12490.97 14965.4 10746.3 9614.95 12053.09 59870.71
TIME EFFICIECY 96.65742532 96.33795288 96.28374417 96.55214016 96.61497591 96.48504252
Table 5.1 5.2 FOKKLIFT UTILIZATIO COSOLIDATED STATEMET
FORKLIFT/AREA 3TO/CSM YARD 3TO/LOGISTICCSM (1)3TO+(2)5TO/A PM YARD
RUIG HOURS HR MI S
AVAILABL E RUIG HOURS HR S MI
PRESET UTILIZATIO
PROPOSED UTILIZATIO (%) SUGGESTIO SUGGESTIO SUGGESTIO -1 -2 -3
18
18
24
0
76.25
90.1625
.A
.A
18
55
24
0
78.88
ELIMIATED
ELIMIATED
ELIMIATED
50
01
72
0
69.48
.A
.A
.A
(2)5TO/LOGISTIC S
38
5
48
0
62.7
5TO/CCR
17
(70%) 78.93
67.38
(100%) 85.88 21
24
0
72.27
.A
(100%) 85.88 (90%) 84.04
.A
(0%) 90.05 (10%) 93.75
3TO/CCR FURACE
19
56
24
0
83.05
.A
99.5
Table 5.2
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
ELIMIATED
Summer Internship Report 2010 5.3 SUGGESTIOS 5.3.1 SUGGESTIO 1 PERFORMIG THE TASK OF CATHODE SHIFTIG FROM CSM (70%) TO WAREHOUSE/YARD TO CCR (100%) AD TRUCK LOADIG (100%) BY 2 FORKLIFTS OF LOGISTICS (5TO) 1. Proper coordination to be established between csm ccr and logistics such that requirement of forklifts could be planned. 2. Timing of stripping to be well communicated to logistics prior so that it can make forklifts to do rest of the work in a planned manner 3. 70% of the cathode bundles can be shifted by logistic forklift and 30% can be stored in the csm yard and later can be shifted by csm forklift during the changeover. RENEWD UTILIZATION WHEN 70% OF CATHODE IS SHIFTED BY 2-5TON FORKLIFT OF LOGISTICS
TIME FOR SHIFTIG 70% FROM CSM BUDLES I A DAY TOTAL TIME FOR COIL LOADIG TIME FOR LOADIG CATHODE BIUDLES I TRUCK SET UP TIME(FORKLIFT ARM CHAGE)10 TIMES FOR 10 MI TIME FOR SHIFTIG ALL BUDLES I A DAY TO CCR 20% OF TOTAL AVAILABLE HOUR FOR MISCELLAEOUS 30 MI PER SHIFT REFRESHMET TIME 30 MI PER SHIFT BREAKDOW TIME TOTAL TIME TOTAL AVAILABLE HRS OF TWO FORKLIFTS UTILIZATIO (%)
28047.6 28800 13500
7.8 8.0 3.8
47.5 0.0 45.0
27.6 0.0 0.0
6000 31968
1.7 8.9
40.0 52.8
0.0 48.0
17280 5400 5400 136395.6 172800 78.93264
4.8 1.5 1.5 37.9 48.0
48.0 30.0 30.0 53.3 0.0
0.0 0.0 0.0 15.6 0.0
Table 5.3 RENEWD UTILIZATION WHEN 30% OF CATHODE IS SHIFTED BY 3TON FORKLIFT OF CSM TIME FOR SHIFTIG 30% FROM CSM BUDLES I A 3.3 20.3 20.4 DAY 12020.4 MAXIMUM OUTPUT I OE STRIPPIG(BUDLES) 84 TIME FOR SHIFTIG 1 BUDLE FROM MACHIE TO CSM YARD 150 O OF STRIPPIG I A DAY 3 TIME FOR SHIFTIG 84 BUDLES I EACH STRIP(3) 37800 10.5 30 0 20% OF TOTAL AVAILABLE HOUR FOR -8.5E4.8 48 MISCELLAEOUS 17280 13 30 MI PER SHIFT REFRESHMET TIME 5400 1.5 30 0 30 MI PER SHIFT BREAKDOW TIME 5400 1.5 30 0 TOTAL TIME 77900.4 21.639 38.34 20.4 UTILIZATIO OF FORKLIFT (%) 90.1625
Table 5.4
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 RENEWD UTILIZATION WHEN 100% OF CATHODE IS SHIFTED BY 2 -5TON FORKLIFT OF LOGISTICS TIME FOR SHIFTIG 100% FROM CSM BUDLES I A DAY
40068
11.1
7.8
48.0
TOTAL TIME FOR COIL LOADIG
28800
8.0
0.0
0.0
TIME FOR LOADIG CATHODE BIUDLES I TRUCK
13500
3.8
45.0
0.0
SET UP TIME(FORKLIFT ARM CHAGE)10 TIMES FOR 10 MI
6000
1.7
40.0
0.0
TIME FOR SHIFTIG ALL BUDLES I A DAY TO CCR
31968
8.9
52.8
48.0
20% OF TOTAL AVAILABLE HOUR FOR MISCELLAEOUS
17280
4.8
48.0
0.0
30 MI PER SHIFT REFRESHMET TIME
5400
1.5
30.0
0.0
30 MI PER SHIFT BREAKDOW TIME
5400
1.5
30.0
0.0
TOTAL TIME
148416
41.2
13.6
36.0
TOTAL AVAILABLE HRS OF TWO FORKLIFTS
172800
48.0
0.0
0.0
UTILIZATIO (%)
85.88889
Table 5.5
4. Before loading one truck if we can supply 6 bundles of cathode to ccr then we can easily manage with the two 5ton forklifts. 5. One forklift will be used to bring the cathode from csm to yard and other will be used to supply cathode to ccr, and after supplying 6 bundles the forklift will be used to load one truck. 6. During break down of csm the csm forklift can also be used to transfer cathodes to yard/warehouse. 7. Ccr 3-ton forklift can also take some of the cathode supply to the furnace while not on other works. 8. Before the starting of the csm coils to be loaded in the truck must be sorted out in advance so as to gain time during the machine running and shifting of cathodes. 9. If two to three trucks is to be loaded one after the other then initial supply of cathode is to be provided to the ccr and then one truck is to be loaded and then the ccr forklift can be utilized to supply the cathode at regular intervals until all the trucks are loaded and also if 70-30 system is used then the 5ton forklift used in csm can be used to load the truck at a later stage.
RESULT: 3 TO FORKLIFTS OF LOGISTICS CA BE ELIMIATED UTILIZATIO OF 5TO FORKLIFTS CA BE ICREASED
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 5.3.2 SUGGESTIO-2 ISTALLIG THE AUTO FEEDER I THE CCR FURACE AREA 1. Install an auto feeder eder as shown in the diagram of auto feeder for feeding the cathodes cat to the furnace at ccr
Cathode lifting arm
Fig 5.1 2. Time which was earlier used for feeding the fu furnace rnace can be utilized for bringing bring the cathode from yard to ccr.
3-TO TO FORKLIFT OF CCR TIME FOR SHIFTIG OE BUDLE CATHODE TO CCR FURACE
222
O OF CATHODE BUDLES SHIFTED I A DAY
144
HR
MI
SEC
TIME FOR SHIFTIG ALL BUDLES I A DAY
31968
8.9
52.8
48.0
50% OF TOTAL AVAILABLE HOUR FOR MISCELLAEOUS
43200
12.0
0.0
0.0
30 MI PER SHIFT REFRESHMET TIME
5400
1.5
30.0
0.0
30 MI PER SHIFT BREAKDOW TIME
5400
1.5
30.0
0.0
TOTAL TIME
85968
23.9
52.8
48.0
TOTAL AVAILABLE HRS
86400
24.0
0.0
0.0
UTILIZATIO (%)
99.5
Table 5.6 4. Time used for shifting the cathode to ccr can be used to shift the cathode from csm yard to yard/warehouse.
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010
TRUCK LOADIG (COIL) TIME TAKE FOR LOADIG OE COIL
HR
MI
SEC
3.0
0.0
0.0
90
O OF COILS I OE TRUCK
8
O OF TRUCKS I A DAY
15
TIME FOR LOADIG ALL TRUCKS
10800
TIME FOR COIL ADJUSTMET PER TRUCK
1200
TIME FOR COIL ADJUSTMET FOR ALL TRUCKS
18000
5.0
0.0
0.0
TOTAL TIME FOR COIL LOADIG
28800
8.0
0.0
0.0
SET UP TIME(FORKLIFT ARM CHAGE)10 TIMES FOR 10 MI
6000
TRUCK LOADIG (CATHODE) TIME FOR LOADIG OE BUDLE CATHODE
90
O OF CATHODE BUDLES I OE TRUCK
10
O OF TRUCKS I A DAY
15
TIME FOR LOADIG CATHODE BUDLES
13500
3.8
45.0
0.0
TIME FOR SHIFTIG TOTAL BUDLES I A DAY FROM CSM TO YARD
40068
11.1
7.8
48.0
20% OF TOTAL AVAILABLE HOUR FOR MISCELLAEOUS
17280
4.8
48.0
0.0
CATHODE BUDLES TO YARD
30 MI PER SHIFT REFRESHMET TIME
5400
1.5
30.0
0.0
30 MI PER SHIFT BREAKDOW TIME
5400
1.5
30.0
0.0
TOTAL TIME
116448
32.3
20.8
48.0
TOTAL AVAILABLE HRS OF TWO FORKLIFTS
172800
48.0
0.0
0.0
UTILIZATIO (%)
67.38889
Table 5.7 5. Utilization of logistics forklift can further be improved by engaging it into miscellaneous and supporting activities of other forklifts.
RESULT: 3 TO FORKLIFTS OF LOGISTICS CA BE ELIMIATED UTILIZATIO OF 5TO FORKLIFTS CA BE ICREASED
MOEY MATTERS: INVESTMENT FOR THE CONVEYOR=RS.20 LAKHS (APPROX) (MACHINE AND INSTALLATION) MONEY SAVED PER MONTH ON 1 FORKLIFT= RS.1 LAKH ESTIMATED PAYBACK PERIOD= 20 MONTHS I.E. 1 YR 8 MOTHS
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 5.3.3 SUGGESTIO 3: RESEQUECIG THE CCR WORKFLOW AD ISTALLATIO OF AUTO FEEDER 1.
Present arrangement of ccr plant and forklift movements are shown as below:
COILER
COILER
COMPACTOR
COOLER
WEIGHED PALLET PACKER
STRECH PACKER PALLET STACKIG AREA WEIGH SCALE
FORK LIFT
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 2. Workstations of the ccr is to be arranged in a sequential manner as shown in the diagram of new railed ccr and rail system to be implemented to shift the coil.
Cooler
Rails Coiler Compactor
Pallet Stretch packer
Packer
Weigh scale
Delivery for forklift
Fig 5.2 2. Installing an auto feeder system as shown in the diagram (auto feeder) will feed the ccr furnace with the cathodes. 3. Time gained by 5ton forklift can be utilized to do the miscellaneous work at ccr and to shift the coils to warehouse.
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 5TO FORKLIFT OF CCR
HR
MI
SEC
TIME TAKE TO SHIFT OE COIL
158
O OF COILS PRODUCED I A DAY
96
TIME TO SHIFT ALL COILS TO WAREHOUSE 60% OF TOTAL AVAILABLE HOUR FOR MISCELLAEOUS
15168
4.2
12.8
48.0
51840
14.4
24.0
0.0
30 MI PER SHIFT REFRESHMET TIME
5400
1.5
30.0
0.0
30 MI PER SHIFT BREAKDOW TIME
5400
1.5
30.0
0.0
TOTAL TIME
77808
21.6
36.8
48.0
UTILIZATIO (%)
90.05556
Table 5.8
5TO FORKLIFT OF CCR
HR
TIME TAKE TO SHIFT OE COIL
158
O OF COILS PRODUCED I A DAY
96
MI
SEC
TIME FOR SHIFTIG 10% CATHODE TO THE CCR
3196.8
0.9
53.3
16.8
TIME TO SHIFT ALL COILS TO WAREHOUSE 60% OF TOTAL AVAILABLE HOUR FOR MISCELLAEOUS
15168
4.2
12.8
48.0
51840
14.4
24.0
0.0
30 MI PER SHIFT REFRESHMET TIME
5400
1.5
30.0
0.0
30 MI PER SHIFT BREAKDOW TIME
5400
1.5
30.0
0.0
TOTAL TIME
81004.8
22.5
30.1
4.8
UTILIZATIO (%)
93.75556
RENEWD UTILIZATION WHEN 100% OF CATHODE IS SHIFTED BY 2 -5TON FORKLIFT OF LOGISTICS TIME FOR SHIFTIG 100% FROM CSM BUDLES I A DAY
40068
11.1
7.8
48.0
TOTAL TIME FOR COIL LOADIG
28800
8.0
0.0
0.0
TIME FOR LOADIG ALL TRUCKS
13500
3.8
45.0
0.0
TIME FOR SHIFTIG ALL BUDLES I A DAY TO CCR
31968
8.9
52.8
48.0
SET UP TIME(FORKLIFT ARM CHAGE)10 TIMES FOR 10 MI
6000
1.7
40.0
0.0
20% OF TOTAL AVAILABLE HOUR FOR MISCELLAEOUS
17280
4.8
48.0
0.0
30 MI PER SHIFT REFRESHMET TIME
5400
1.5
30.0
0.0
30 MI PER SHIFT BREAKDOW TIME
5400
1.5
30.0
0.0
TOTAL TIME
148416
41.2
13.6
36.0
TOTAL AVAILABLE HRS OF TWO FORKLIFTS
172800
48.0
0.0
0.0
UTILIZATIO (%)
85.88889
Table 5.9
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010
RENEWD UTILIZATION WHEN 90% OF CATHODE IS SHIFTED BY 2 -5TON FORKLIFT OF LOGISTICS TIME FOR SHIFTIG 100% FROM CSM BUDLES I A DAY
40068
11.1
7.8
48.0
TOTAL TIME FOR COIL LOADIG
28800
8.0
0.0
0.0
TIME FOR LOADIG ALL TRUCKS
13500
3.8
45.0
0.0
TIME FOR SHIFTIG ALL BUDLES I A DAY TO CCR SET UP TIME(FORKLIFT ARM CHAGE)10 TIMES FOR 10 MI
28771.2
8.0
59.5
31.2
6000
1.7
40.0
0.0
20% OF TOTAL AVAILABLE HOUR FOR MISCELLAEOUS
17280
4.8
48.0
0.0
30 MI PER SHIFT REFRESHMET TIME
5400
1.5
30.0
0.0
30 MI PER SHIFT BREAKDOW TIME
5400
1.5
30.0
0.0
145219.2
40.3
20.3
19.2
172800
48.0
0.0
0.0
TOTAL TIME TOTAL AVAILABLE HRS OF TWO FORKLIFTS UTILIZATIO (%)
84.03889
Table 5.10 4. Time during the starting of the coiling process can be used to shift 10% of the cathodes to the ccr furnace. 5. Time gained by 5ton forklifts of logistics can be used for other miscellaneous purpose.
RESULT: 3 TO FORKLIFTS OF LOGISTICS CA BE ELIMIATED 3TO FORKLIFT OF CCR CA BE ELIMIATED UTILIZATIO OF 5TO FORKLIFTS CA BE ICREASED
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 5.3.4 SUGGESTIO 4 ESTABLISHIG A CETRALIZED FORKLIFT COTROLIG UIT 1. Central controlling unit is to be established where in all the forklifts report. 2. Planning should be regarding each shift activities and the requirements of forklifts by the controlling unit. 3. During reporting of the forklift, each forklift is to be checked for the status card issued by the maintenance unit of forklifts which specifies the overall condition of the forklift and fitness for its usage. 4. After the verification by the in-charge the forklifts are to be issued to the various jobs in hand which are preplanned by all the plants and informed prior. 5. Job cards are to be issued by the controlling unit for each job to be done. 6. After the completion of the particular job the job handling officer should relieve the forklift by signing on to the job card. 7. The forklifts must report to the controlling unit after completion of each job. 8. Breakdowns and refreshment breaks are also to be informed to the controlling unit with starting and ending time. 9. Rules must be formulated to take actions against the improper performance of the forklifts and intentional delay. 10. Progress of each job should be reported to the controlling unit by the job handling officer and estimated job completion time also to be communicated. RESULT: MORE SYSTEMATIC FORKLIFT MAAGEMET CA BE DOE AD UTILIZATIO OF EACH FORKLIFT CA BE IMPROVED.
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 COCLUSIO: The project regarding the time efficiency of the refinery plant has prominently highlighted with the help of Pareto analysis that CSM, ASWM, APM and CRANES play a vital role in the production of copper cathodes. And the delays which occur during their functioning are majorly caused due to various technical reasons in the machine parts and operational inefficiency. Steps should be taken to bring in control and efficient usage of machines by regular checkups and maintenance and training and knowledge sharing activities for the operators. The project regarding the forklift motion study in the EOU has clearly identified the under utilization of the forklifts and the unproductive motion that the forklifts take to perform an activity. By the implementation of the provided suggestions the utilization of the forklifts can be increased and the excess forklift can be removed and the profitability of the EOU can be increased.
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
Summer Internship Report 2010 REFERECES: 1. Http://www.sterlite-industries.com 2. En.wikipedia.org/wiki/pareto_analysis 3. Documents from the company which are confidential. 4. Daily reports of the refinery plant 5. En.wikipedia.org/wiki/Time_and_motion_study
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IMPROVIG THE OPERATIOAL EFFICIECY AD PROFITABILITY OF EXPORT ORIETED UIT
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