Raymond mill use in the process, there should be a fixed charge of personnel, the operator must have a certain level of technology. Before installation of the mill operator must carry out the necessary technical training to understand the principle of the performance of the mill, familiar rules. 2, for the Raymond mill normal, should develop equipment "equipment maintenance safe operation of the system" in order to ensure long-term safe operation of the mill, at the same time have the necessary repair tools and grease and the corresponding accessories. 3, Raymond mill use for some time, maintenance should be carried, while roller grinding ring blade overhaul replacement of wearing parts such as processing, grinding roller device before and after the use of the connection bolts and nuts should be carefully examined to see whether There are loosening, whether to add a little grease. 4, roller device in use around the time more than 500 hours to replace the roller, the roller jacket of the rolling bearings must be cleaned, damaged parts should be replaced, fuel pumps and hand tools available grease gun. R-type Raymond mill after many years of practice and continuous improvement, its structure has been improving, with high efficiency, low energy consumption, small footprint, low capital investment and environmental pollution. Which is widely used in the grinding process metallurgy, building materials, chemicals, mining minerals in areas such material, suitable for processing Mohs hardness of seven or less, and various non-explosive mineral humidity below 6%, such as gypsum, lime , calcite, limestone, marble, feldspar, lime, dolomite, granite, kaolin, bentonite, stone, bauxite, iron oxide red, iron ore, finished fineness of 613 microns to 440 microns (0.613 mm -0.44 mm), through the analysis of interaction machines and fans can meet different requirements of users.