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In fine grinding, drying, grinding, powder selection, transportation in one Zenith, is the first choice and processing of slag cement. At the same time, ultrafine vertical roller mill grinding cement accounted for the ratio in the world has changed: in 2004~2005, the vertical mill grinding cement accounted for the ratio in the world for 26% years, 2008~2009 for 61%, 2011~2012 years to reach 83%.

Grinding is an important process for the production of cement, it not only determines the unit power consumption of cement on the properties of cement production, but also has a very important influence. Long term since, cement grinding is in the ball mill, ball mill has the advantages of simple structure,reliable operation, convenient maintenance and management; high adaptability to raw materials, continuous production, high production capacity; big crushing ratio, easy to adjust the fineness etc..

The traditional ball mill for cement end milling, the power consumption may reach 100-110 degrees, bed grinding can reach 80-85 degrees, according to the test, the most advanced level of power consumption is 75 kwh. In recent years,transformation and upgrading of traditional mill, and adopts the new type powder selecting machine closed loop system, technology of cement grinding technology has been so rapid development. Especially the application of vertical mill, greatly reduce the slag cement grinding energy consumption, improve grinding efficiency.

The excellent characteristics of vertical mill is be obvious to people, the majority of users, a high grinding efficiency. Two, the process is simple, save constructioninvestment. Three, the drying ability strong. Four, metal wear small. Five little dust, low noise. Six, products have a high degree of. Especially in the large grinding process, fully meet the needs of customers, the main technical,economic indicators have reached the international advanced level. Widely used in metallurgy, electric power, cement, chemical industry, ceramic, non metallic minerals, power plant desulfurization, water slag, slag, slag, coal, cement clinker,glass, quartz, limestone and other industries of large-scale material grinding and superfine grinding machining.