Method of firing a rotary kiln and apparatus therefor

Compositions: coating or plastic – Coating or plastic compositions – Proteinaceous material containing

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C04B 744

Patent

active

042004691

ABSTRACT:
A method of firing a rotary kiln for the production of cement clinker is disclosed. The method includes the step of directing at least a major portion of the amount of fuel necessary for firing the kiln so as to be brought into direct contact with hot cement clinker in a precooling zone of the rotary kiln. There is further disclosed an apparatus for the production of cement clinker from cement raw meal. The apparatus comprises an inclined rotary kiln having a precooling zone in the lower end portion thereof in which cement raw meal collects and means for directing a jet of fuel into direct contact with hot cement clinker in the precooling zone of the material downstream end of the rotary kiln.

REFERENCES:
patent: 3498594 (1970-03-01), Rikhof

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