Natural sand mining cost is higher and higher in recent years, after many years of continuous mining, natural sand resources is rapidly reduced, and at the same time in order to maintain the natural landscape, protection consideration of damming, protect the ecological balance. Place in growing Numbers are beginning to use artificial sand making machine…

High temperature calcination and rapid cooling are important measures to improve the quality of cement clinker, in this paper, we talk about the high temperature for calcining what important influence on the quality of cement clinker. When the calcination temperature from 1350 ℃ to 1400 ℃ and 1425 ℃ respectively, 3 d, 7 d and…