Cement Energy and Environment

The Three broad unit operations of cement manufacturing are: • Raw milling -the preparation of the kiln feed. • Calcining and Burning or Clinkering - the conversion process that takes place within the cement kiln and associated equipment. • Finish milling -the grinding of clinker to produce cement. DALMIA CEME.NT (BHARAT) LTD, Arlyalur Plant Cement Manufacturing Process - Block Diagram Limestone Mining & Crushing Additive Storage shed Limestone Stacking/ reclaiming Additive mixing Coal , Lignite & AFR (Hazardous waste) fuel Storage shed Coal, Lignite & AFR unloading Hopper Raw mill grinding Coal grinding Receipt of Coal , Lignite & AFR (Plastic Waste, Tyre chips, Oil soaked cotton waste , Waste Soil mix from GE'PIL, Paint slud~e} 5 Stage Pre- heater Fuel feeding in Calciner AFR Clinkeri- sat/on in rotary kiln Fuel feeding Coal r Cement bags Packing Clinker cooling /storage Cement Grinding Cement Dispatch r l Gypsum I l ~ flyash _::j Bulk cement! clinker loading 4 •