· The heavy postwar demand for Portland Cement has created shortages that are gradually being overcome by increases in plant capacity. In the postwar period, the Lone Star Cement Corp. has expanded several of its existing 15 plants and has built 2 new plants, now in operation, with a third new plant under construction in Brazil, of design somewhat different from that of the two preceding ones.

 · DRY PROCESS. When the available raw materials are quite hard, then this process is used. The cement by this process can be prepared by using the following operations:Mixing of raw materials; Burning and Grinding; Mixing of Raw Materials: The raw materials argillaceous and calcareous materials undergo the following stages:

 · Dry process cement kiln is a kind of rotary kiln which is mainly used in calcining cement clinker. The cement clinker made by the dry process has better quality and stability. It can bring more economical and social benefits in production. The Different Between Dry Process And Wet Process

In dry and semi dry processes for manufacturing of cement, the raw materials are crushed and fed in the correct proportions into a grinding mill. The raw materials are dried and reduced in size to a fine powder in to grinding mill. The dry powder is called the raw meal. The raw meal is .