Method of producing cement clinker

Details Method of producing cement clinker Method of producing cement clinker

C - Chemistry, Metallurgy

04

B

C04B 7/38 (2006.01) C04B 7/44 (2006.01) F27B 15/00 (2006.01)

Patent

CA 2096906

Abstract The invention relates to a method of producing cement clinker from fine-grained cement raw material which after preheating and calcining is burnt in a clinker burning zone divided into two stages and is then cooled. Optimum process conditions, particularly in the clinker burning zone, are achieved in that the calcined material is first of all heated to a temperature up to the region of the sintering temperature in a state formed by a fluldised bed or spouted bed so that a build-up granulation of the material is brought about, whereupon the material thus heated is heated to the sintering temperature in a second stage of the clinker burning zone which acts as the finish- burning stage and tempered to the finishing burn.

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