1.Short cylinder ball mill: the ball mill with the cylinder length (l) less than 2 times of the cylinder diameter, i.E.The ball mill with l 2d is short cylinder ball mill, which is usually of single bin structure, mainly used for rough grinding or primary grinding operation, and can realize the wide use of 2-3 ball mills in series.
Ball mills are predominantly made use of devices for grinding inside the cement industry.Although ball mills have been utilised for much more than one hundred several years, the design is still being improved in order to reduce the grinding costs.Grinding technology has been continuously improving with numerous innovations with a view to improve productivity and reduce energy intake.In order to reduce the manufacturing costs for cement, it is quite important to optimise the existing mill installations as far as the grinding procedure is concerned and in addition to use high quality spare parts and consumables like grinding media.
Ceramic ball mill is mainly used in material mixing, grinding.Henan fote heavy machinery co., ltd has two kinds of grinding ceramic ball mill, one is dry grinding ceramic ball mill, and another is wet grinding ceramic ball mill.The machine can use different liner types according to different production needs.The fineness of the grinding is controlled by grinding time.
As the development of reforming and opening, our beneficiation technology has undergone enormous changes, which has gone beyond the international level in the technology and quality.Commonly used ore beneficiation equipments include: crusher, ball mill, screening & classification equipment, magnetic separator, flotation machine, dryer, etc.The development of ore beatification equipment and technology is synchronization, the process is dominant, the device is the foundation.Hongxing ore dressing process include magnetic separation process, flotation process, lead and zinc mineral process, etc.Each process has different operating processes depending on the raw materials.The main technical and economic indicators of hongxing lead and zinc ore dressing process have reached the world advanced level.
2) while in the second stage grinding process, if the materials in the first stage are from 20 to 6mm grinding to 3 to 1mm, when using rod grinder as the first stage powder grinding equipment, the production capacity is higher, and so is the efficiency.Because a certain weight of the charge stick surface area is much smaller than the same weight of ball charge, as the second stage fine grinding, the productivity and efficiency of rod mill is lower than that of the ball milling ;.
Rod mills accept feeds approximately 2 depending hardness material.Cases ideal rod mill feed minus 80% passing .Rod mills used products maximum sizes 4 mesh 35 mesh.Rods rod mill contact result preferentially grind largest particles relatively narrow range distribution; i.E.Tramp oversize extreme fines.Figure 1 shows various types rod mill discharge arrangements.Overflow discharge used extensively applications.Grinding wet mill used reduce suitable ball mill feed.In practice proven rod mill design subject limitations.Ratio length diameter not 1.2/1.Speed mill operated limited maximum 70% critical speed preferably 60 68 percent critical speed range.
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