Cement Plant Pyro Pyro-Technology
Palle Grydgaa rydgaard MSc, Chem. Eng MSc, Eng.. Head He ad o off Process, Proc ess, PD1 PD1-P -P1 1 F.L.Smidth A/S Vi Vige gers rsle lev v Allé Allé 77 • DK-2500 Valby • Copenhagen • Denmark Tel +45 36 18 10 00 • Direct line +45 36 18 20 63 Fax +45 36 17 10 91
[email protected]
06-08-28
Trends in cement process: • dry process • larger production units > 5.0 5.000 00 t/ t/d d up to 12. 12.00 000 0 t/d t/d
• lower energy consumption
06-08-28
THE (SMIDTH-FULLER) SF CROSS-BAR COOLER
06-08-28
Stationary and Moveable Cross-Bars
06-08-28
Stationary and Moveable Cross-Bars
06-08-28
AIR DISTRIBUTION PLATE WITH MFR 2
⎛ Q& ⎞ ρ ∆ P = ξ ρV = ξ ρ ⎜⎜ ⎟⎟ ⇒ A = Q& ξ 2 2 ⎝ A ⎠ 2 ∆ P 1
2
1
Air flow through holes in tongue Air flow through idle hole Air flow through gaps
06-08-28
Mec h han ha an i c al Fl Fl o ow wR Re eg gul gu ul ula lators to t ors HIGH BED RESISTANCE
LOW BED RESISTANCE
LOWER
HIGHER
VALVE dP
VALVE dP
CONSTANT
AIR
FLOW
06-08-28
5 stage ILC kiln Fuel Type
Bituminous Coal
Net Heat Value
Heavy Fuel Oil
Natural Gas
6430
9780
11300
727
720
731
CO2 from Raw Mat. kg/kg clinker
0.540
0.540
0.540
CO2 from Fuel
kg/kg clinker
0.281
0.230
0.174
Total CO2
kg/kg clinker
0.821
0.770
0.714
kcal/kg fuel
Kiln Heat Cons. kcal/kg clinker
06-08-28
TYRES
06-08-28
HOTDISC DESIGN CONCEPT
06-08-28
HOTDISC
06-08-28
Hotdisc connected to calciner
