mill heat balance

Coal Mill Heat Balance ( Non-Inert : Cooler Gases) 

Total wet feed to mill Feed Moisture Residual Moisture False Air 

55 18.489 1.5 18 Mass TPH

INPUT: Material W ater Cooler Hot Air Recirculation Air False Air Grinding Heat(Mot. Heat(Mot. KW)------> KW )------> Total Input

OUTPUT: Material Residual W ater Evaporated water  Air Radiation Total Output

TPH % % %

Sp. Heat (Kcal/kg/oC)

44.831 10.169 121.49 10 18.532 425 KW

0.27 1.00 0.24 0.24 0.24

44.831 0.6625 9.5063 150.02

0.29 1.00 0.45 0.24

Temp oC

25 25 280 60 30

70.0

HEAT BALANCE FLAG(Green if Heat Balance is OK)>>>>>  Press To Adjust outlet temperature for Balance

Press to Adjust Cooler Hot Air Quantity for Balance Press to Adjust Feed Moisture for Balance Press to Adjust Cooler Hot Air Temperaturefor Balance

This sheet has been created by Rajiv Sadavarti Sadavarti on November 20, 2008. Rev 0.

Heat Cont. (Kcal/h) *1000

304.6 254.2 8321.1 143.6 132.7 347.7 9504.0

907.9 46.4 5958.5 2498.7 92.5 9504.0

0.0

1. This sheet is valid only for Non- Inert Coal Mill. 2. While loading the sheet; macros shall be enabled. 3. All the data appearing in yellow boxes can be changed as per the requirements. 4. Buttons at the bottom are "coded" to do an auto heat balance based on the button caption. 5. With changes if the Heat is not balanced the flag will turn red. 6. Pressing any of the Heat Balance buttons at the bottom will do the balancing and turn the flag green. 7. This Heat Balance is Preliminary and will be reviewed.