Process of producing cement

Details Process of producing cement Process of producing cement

C - Chemistry, Metallurgy

04

B

C04B 7/43 (2006.01) C04B 7/44 (2006.01) C04B 7/48 (2006.01)

Patent

CA 2091548

-19- ABSTRACT Process of Producing Cement For the production of cement, a process is described in which a mixture of ground raw materials (raw meal) is preheated in a preheating cyclone, the preheated raw meal is cal- cined, the calcined raw meal is burned in a rotary kiln, the cement clinker formed in the rotary kiln is cooled, and the cement clinker is ground. The process is characterized in that the high-grade fuels used to produce cement are replaced in part by low- grade fuels, which are gasified in a fluidized bed, and the resulting gas is divided into three partial streams, the first of which is supplied to the main burner of the rotary kiln, the second to the exhaust gas stream from the rotary kiln and the third to the calciner.

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