Overview of impacts on key Parameter Index (KPI) _ Holcim Norms
Reduction of kiln capacity by moisture
addition
2 t clinker / t water
Increase of heat consumption by
moisture addition
1.25 kcal/kg clinker / t water for 10000
TPD clinker plant
Reduction of kiln capacity by false air (or
transport air):
0.24 t clinker / 1’000 Nm3 of False Air
Increase of heat consumption by false air
(or transport air):
238 kcal / Nm3 false air or excess air
Reduction of kiln capacity due to in-
crease of oxygen when coarse solid LGF
alternative fuels are burnt
5.7% production loss per % O2 increase
Increase in heat consumption 2 kcal / % AFR (TSR)
Increase of heat consumption by in-
crease of oxygen:
1.8% heat consumption per % additional
O2
Conclusion
Before installing AF feeding and firing system quality of possible AFR`s along with
its impacts to be discussed properly with suppliers to have trouble free system.