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Ultrafine powder vertical roller mills, ideal large scale powder grinding equipment, are widely applied in the industries of cement, electric power, metallurgy, chemicals and non-metal ores, which have combined crushing, drying, powder making and sorting conveying. With high efficiency, the vertical roller mills can grind bulk, granulate and powdery raw materials into the required powdery materials.
The requirements of R&D techniques for vertical roller mill are quite high. Some related research institutes in our country had suggested to vigorously advertise the cement vertical roller mill in 1980s and at that time, ,many manufacturers had launched their own vertical roller mills. However, their vertical roller mills have unavoidable technique shortcomings due to the laggard technology. Consequently, a lot of cement manufacturers ultimately invested the ball mills.
During recent years, with increasing advancement of R&D technique for vertical roller mill, domestic vertical roller mill technique also gets mature and the product advantages become more and more apparent. Under this circumstances, domestic manufacturers absorbing abroad successful experience, have full-scaled reformed their technique and launched vertical roller mills with their own patent rights in succession. From then on, the vertical roller mill has gradually been applied in cement, electricity power and chemical industries, which becomes the priority equipment of grinding mill industry.