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American Cement
How Cement is Made
Cement and Concrete
Portland Cement Plant General Arrangement
November 2007
October 2007
September 2007
August 2007
July 9, 2007
June 8, 2007
May 22, 2007
March 31, 2007
December 22, 2006
October 20, 2006
September 9, 2006
Ground Breaking
August 22, 2006
August 3, 2006
Coal Mill
Cooler and Burner Building
Electric Room
Finish Mill
Gas Conditioning Tower
Kiln
Maintenance Building
Office
Preheater
Preheater Vessels
Quarry
Raw Mill
Raw Material Storage
Silos
Sub-Station
Blend Silos
Cement Sillos
Cooler and Burner Building
Electric Rooms
Finish Mill
Gas Conditioning Tower
Kiln
Maintenance Building
Miscellaneous
Office Building
Preheater
Preheater Vessels
Quarry
Raw Mill
Raw Material Storage
Sub-Station
Blending Silo
Cement Silo
Clinker Silo
Cooler and Burner Building
Electric Rooms
Gas Conditioning Tower
Kiln
Miscellaneous
Power
Preheater
Preheater Vessels
Raw Mill
Raw Material Storage
Sub-Station
Blend Silo
Cement Silo
Clinker Silo
Cooler and Burner Building
Electric Room
Kiln
Main Bag House
Miscellaneous
Preheater
Preheater Vessels
Raw Material Storage
Raw Mill
Sub-Station
Cooler - Burner Building
Finish Mill
Miscellaneous
Preheater
Substation
Cement Silos
Cooler - Burner Building
Finish Mill
Kiln Piers
Miscellaneous
Office Building
RMS Building
Substation
Clinker Silo Progress
Finish Mill Progress
Limestone Gypsum Storage Progress
Preheater Building Progress
Raw Material Storage Progress
Plant Emissions
Emissions from Cement Manufacturing
The main pollutants emitted from cement manufacturing include nitrogen oxides (NOX), sulfur dioxide (SO2), carbon monoxide (CO), volatile organic compounds (VOC), and particulate matter (PM/PM10). In summary (and greatly simplified), the major mechanisms for pollutant formation are summarized below:
Pollutant
Mechanism
Source
NOX
Thermal Formation
Kiln Burner
Fuel Nitrogen Oxidation
Kiln, Calciner
SO2
Oxidation of Raw Material Pyrites
Upper Preheater Stages
Fuel Sulfur Oxidation
Kiln, Calciner, Coal/Petcoke
CO & VOC
Incomplete Combustion
Calciner
Thermal Evolution
Raw Materials
PM/PM10
Crushing, Grinding, Conveyance
Crusher, Raw Mill, Coal Mill, Belts, Silos
Pyroprocessing
Kiln, Cooler
Copyright American Cement Company 2007