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Get PriceBall Mills are generally used to grind material 1/4 inch and finer, down to the particle size of 20 to 75 microns To achieve a reasonable efficiency with ball mills, they must be operated in a closed system, with oversize material continuously being recirculated back into the mill to be reduced
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Get Pricecircuits at Palabora Mining Company Each milling circuit consists of a rod mill followed by a ball mill in seri Crusher product (-9 mm) is fed to the rod mill, and the water is fed in ratio to the ore feed mass The rod mill discharge is pumped, without any further water addition, to the first ball mill The ball mill discharges to a sump ,
Get PriceFor overflow ball mills, the charge should not exceed 45% of the mill volume For grate discharge mills, the charge should occupy about 50% of the mill volume Bond developed a relationship that can be used to determine the percent charge by volume as a function of the vertical height above the charge, He, and the radius of the mill, R, ie,
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Get PriceJun 14, 2018· The Function of a Ball Mill To perform its functions, the ball mill operates on the principle of impact and attrition This principle entails that the balls are dropped from near the top of the shell in order to bring about size reduction impact The major components of the ball mill include a shell that is hollow and is suspended on its axis ,
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Get PriceDec 23, 2013· Practical 1: Title: Ball Milling Objective: To grind the coarse salt to a smaller size by using a ball mill and to obtain the particle size distribution of the initial and the sieved final mixture Introduction: 'Ball milling is a method used to break down the ,
Get PriceThe operating principle of the ball mill consists of following steps In a continuously operating ball mill, feed material fed through the central hole one of the caps into the drum and moves therealong, being exposed by grinding media The material grinding occurs during impact falling grinding balls and abrasion the particles between the balls Then, discharge of ground material performed ,
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Get PriceIn this paper, the milling parameters of high energy ball mill (Fritsch Pulverisette 7) like vial geometry, number and size of balls and speed of the mill were modelled and discussed Simulations through discrete element method (DEM) provide correlation between the milling parameters A mathematical model is used to improve and develop this process
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Get PriceBall Mill Liner Function The ball mill liner is used to protect the cylinder body from direct impact and friction of the grinding body and the material At the same time, different forms of mill liner can be used to adjust the movement state of the grinding body to enhance the grinding effect of the grinding body on the material, Help to ,
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