Method for multi-step calcination of cement clinker

Details Method for multi-step calcination of cement clinker Method for multi-step calcination of cement clinker

1978-03-21

1980-01-15

Poer, James

Compositions: coating or plastic

Coating or plastic compositions

Proteinaceous material containing

C04B 744

Patent

active

041837622

ABSTRACT:
A method for the production of cement from raw material to the clinker stage. The raw material is first heated using waste heat from subsequent stages of this process. The heated raw material is then passed into a precalcining stage in which the raw material is partially calcined. The calcination is then completed in an after-calcining stage wherein heat is provided by the combustion of a fuel. The material is next passed to a kiln for conversion to clinker, and is then cooled in a cooling stage. Air for the combustion and the after-calcining stage and in the kiln is supplied from the cooling stage.

REFERENCES:
patent: 3955995 (1976-05-01), Touborg
patent: 4045162 (1977-08-01), Christiansen
patent: 4071310 (1978-01-01), Ghestem

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