Raymond mill is mainly used for grinding mineral which are using for the industries like metallurgy, building materials, chemical, mining, etc. Raymond mill can be used for grinding various kinds of nonflammable and non-explosive minerals of which Moh’s hardness is less than 6 and moisture content are lower than 6%. The typical materials are calcite, talc, barite, fluorite, bentonite, marble, bauxite, phosphate, activated carbon, dolomite, fly ash, bituminous coal, coke, lignite, kaolin, pyrophyllite, gypsum, graphite etc.
During the operation of the grinding mill, if the daily maintenance is not properly done, sometimes the particle size of the powder will be coarser or finer. Normally, there are two reasons which cased this problem.
First, the particle size of the powder is related on the blade of the classifier. When the blade of the classifier was worn, detached or broken, the fineness of the finished powder will become coarse. Therefore, when the particles of the grinding mill become coarse, it is necessary to stop the production and replace the blade of classifier.
Second, the air volume of the blower also will influence the particle size of the powder. The whole air flow system of raymond mill is closed circuit. The air mixed with powder will cycle on the system. The vane of the blower will be worn by the air-powder mixture. If the particle size of powder is become coarser, it is better replace the vane or turn down the blower inlet. If the particle size is become finer, it is better turn up the blower inlet.
Shanghai Zenith has more than 30 year’s experience of manufacturing different kinds of grinding mill. If you have any other questions about the grinding mill, please feel free contact with us.
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