2014年1月6日星期一

vertical roller mill promote the grinding industry rapid development

Grinding is the most important and crucial link in the cement production, energy consumption accounted for more than the total power consumption of the total energy consumption in the production of 70%. So the research and development of new high efficient grinding technology and equipment, control the product particle size distribution, improve the efficiency and quality of product of cement grinding and ultra wet grinder prices in Hyderabad are reasonable. Vertical Roller Mill Operation combined grinding with ball mill is a new type of grinding process, this paper mainly introduces the grinding process and the technological characteristics.
What's the vertical roller mill operation? Smaller material through screening, powder screening after entering the mill; material after rolling and shearing and crushing, the particle size becomes very small, and there are many cracks, of which 30% is less than 80um, then the mixture into the ball mill grinding, making good conditions for ball mill; at the top of the vertical mill is designed to look into the wind the O-Sepa separator, the forced ventilation, to reduce the vertical mill powder abrasive material layer, the qualified materials selected powder into finished products, coarse material into the mill to grinding, ball mill grinding material is two times as the finished product warehouse.
Vertical mill combined grinding and ball mill grinding process is a new series with the ball mill, more and more raymond mill manufacturers in India,vertical mill the clinker and admixture of pre grinding, clinker after pre grinding, grinding and screening device is arranged inclined, bulk material escaping by sieving device block, back to the mill for rolling mill.
Technological characteristics of the combined grinding process includes the following:
1) vertical mill first pre grinding clinker clinker, after pre grinding, the particles get rolling and shearing and crushing, and there is a lot of crack. The mixture into the ball mill grinding, making good conditions for ball mill, the grinding ability has been greatly improved.
2) vertical mill by means of dynamic and static ring, ensures that the material thickness.
3) according to the characteristics of grinding efficiency, can conveniently select the sieve size gap to determined to enter the mill, so as to improve the output of ball mill.
4) the sorting system is different from the ordinary high fine grinding and sieving, the main difference is that: belongs to the dynamic active separation, separation efficiency and higher accuracy, the adjustment is convenient and reliable, does not affect the ventilation area in the mill.
5) the combined grinding of the cement particle size distribution and particle morphology tends to be more reasonable, the particle characteristics and surface energy, mechanical energy is the key common technology difficult problem of matching, and chemical energy, greatly improves the efficiency of the gel, silica, silicon and aluminum industrial solid waste mechanical activation and chemical activation the organic combination.

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