1. Application of raymond mill: This machine is applicable to the grinding and processing or more than 280kinds of non-flammable and non-explosive materials with hardness less than 7 moths and humidity less than 6% in mining, construction, chemical industry and metallurgy, such as barite, calcite, feldspar, talcum, marble, limestone, clay, glass, The fineness of the finished product can be adjusted from 30 mesh to 325 mesh according to requirements. 2. Characteristics of raymond mill: 1> The fineness of product size range is broad may adjust willfully. 2> The dust removal effect conforms to the country dust emission standard completely. 3> The grinding machine interior attrition installment uses the multistage seal, the sealing property is good. 4> Raymond grinder is stable in the movement process, the noise is small. 5> The machine for vertical structure, cover small area, it is an independent producting system from primary material to the final powder. 6> Compared with other grinding equipment,the screening rate is as as high as 99%. 7>electric system USES concentrating control, the workshop can realize no one work, and maintance, etc. 3.Working Principle of raymond Mill : Step with main shaft, bulk disk and roller bracket is driven by motor through reducer. Installed above bracket, roller assembly rotates with main shaft and swings freely meantime, this bring a large centrifugal force, which scatters bulk materials evenly in grinding intermediate layer between central roller and ring. The bulk materials are grinded into powder and fall on the bottom, and then discharged from discharging opening under the effect of synchronously-rotating scraper. 4. Technical data of raymond Mill: