Production of cement clinker by preparing raw mixture based on Limestone Saturation Factor, Silica Module and Alumina Module, and fineness adjustment, and controlling conditions at the kiln inlet during clinkering stage

摘要

A cement clinker is produced by preparing a raw mixture based on the Limestone Saturation Factor of up to 1, the Silica Module of 2-3.5 and the Alumina Module of 0-3, and the fineness adjustment in a mesh No. 200 of the raw mixture; and controlling the residence time of the calcinated mixture, clinkering temperature and oxidizing conditions at the kiln inlet during the clinkering stage. Production of a cement clinker involves preheating, calcining, sintering, and cooling a raw mixture. The raw mixture is prepared before the feeding stage based on the Limestone Saturation Factor (LSF) of up to 1, the Silica Module (SM) of 2-3.5 and the Alumina Module (AM) of 0-3, and the fineness adjustment in a mesh No. 200 of the raw mixture to reduce the temperature in the clinkering stage by more than 100 degreesC. The residence time of the calcinated mixture, clinkering temperature and oxidizing conditions are controlled at the kiln (22) inlet during the clinkering stage.