Method for continuous regulation of cement clinker sulphatation stage

摘要

The present invention relates to a continuous control method of cement clinker sulfating stage, particularly when firing thereof in revolving kilns wherein the method is characterized in that elementary sulfur and/or sulfur-containing compounds are supplied into the revolving kiln in a controlled amount of 10 to 1000 kg.he-1 where they are burned in at least one burner of the revolving kiln at a temperature ranging from 800 degC to 2000 degC without necessity of the cement raw mixture chemism correction. The thermally treated material is in contact with gaseous atmosphere of the kiln enriched with SOi2/SOi3, and the resulting product contains SOi3 within the range of 0.01 to 4 percent by weight.