Circulating and crushing production method of cement clinker

Abstract

The invention discloses a circulating and crushing production method of the cement clinker. The circulating and crushing production method comprises the following steps that the calcined cement clinker is put into screw crushing equipment, the large cement clinker is broken into cement clinker particles of large particle size through the screw crushing equipment, the cement clinker particles are transported into the vertical-arranged screw conveying equipment, the cement clinker of small particles is separated from the cement clinker with large particles, the cement clinker of large particlescontinues to move upwards in an outer sleeve of the screw conveying equipment, and the cement clinker of small particles flows out of sieve holes to outside of the outer sleeve of the screw conveyingequipment; and the cement clinker of large particles is returned to the upstream end of the screw crushing equipment to be crushed again, the cement clinker of small particles separated from the screwconveying equipment is transported to follow-up grinding equipment. By means of the circulating and crushing production method, the large cement clinker can be effectively and evenly broken, and theblock cement clinker which is incompletely broken can be return back to a crushing device again.

Description

technical field [0001] The invention relates to the technical field of cement clinker grinding technology, in particular to a cement clinker circulation crushing production method. Background technique [0002] Cement clinker needs to be ground to a suitable particle size, so as to increase the hydration area of ​​cement products and accelerate the hydration speed of cement, so as to meet the speed requirements of cement paste coagulation and hardening during use. For large pieces of cement clinker, grinding rollers are usually used for crushing, but due to the large volume difference of cement clinker, the grinding rollers have the problems of large jump and uneven crushing effect; and screw crushing is more effective than grinding roller crushing. High efficiency and lower energy consumption, and can avoid the problem of uneven crushing effect of grinding rollers. [0003] In addition, the blocky cement clinker forms granular cement clinker after preliminary crushing. In ...

AI Technical Summary

Problems solved by technology

The problem with the above-mentioned process is that the overall structure is too complex, it occupies a large space, and the dust is difficult to control, resulting in a relatively harsh working environment