Method of producing cement clinker

Details Method of producing cement clinker Method of producing cement clinker

1994-06-07

1995-08-01

Bell, Mark L.

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

106744, 106752, C04B 743

Patent

active

054377218

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 stage formed by a fluidized 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.

REFERENCES:
patent: 4402754 (1983-09-01), Schmidt et al.
patent: 4507153 (1985-03-01), Herchunbach et al.
"The Manufacture of Portland Cement Clinker in a Spouting Bed" Heertjes et al. (1971) Powder Technology vol. 11, No. 5 pp. 269-274.

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