19-06-2015· Ball Mill Power Calculation Example #1 A wet grinding ball mill in closed circuit is to be fed 100 TPH of a material with a work index of 15 and a size distribution of 80% passing ¼ inch (6350 microns) The required product size distribution is to be 80% passing 100 mesh (149 microns) In order to determine the power ,

Get PriceThe absorbed power is calculated by multiplying the torque on the driving shaft with the shaft speed (rad/sec) and hence excludes any losses associated with the gearbox and motor The pulp weight in the mill is obtained by subtracting the mill weight during the test from the empty mill weight, including the ball charge, at the start of the test .

Get PriceModeling The Specific Grinding Energy And Ball 21 conclusions continued in the present work equations were also derived giving zthe ballmill power drawp as a function of its dimensions internal mill diameter d and length l zthe ballmill power drawp as a function of the feed d f mm and the product size d mm the bond work index w i kwhshort ton and the mill throughput t short tonh zthe ballmill .

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Get Price25-10-2017· The following are factors that have been investigated and applied in conventional ball milling in order to maximize grinding efficiency: a) Mill Geometry and Speed – Bond (1954) observed grinding efficiency to be a function of ball mill diameter, and established empirical relationships for recommended media size and mill speed that take this factor into account

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Get Price19-06-2015· Ball Mill Power Calculation Example #1 A wet grinding ball mill in closed circuit is to be fed 100 TPH of a material with a work index of 15 and a size distribution of 80% passing ¼ inch (6350 microns) The required product size distribution is to be 80% passing 100 mesh (149 microns) In order to determine the power requirement, the steps .

Get Priceiran ball mill motor efficiency sale Ball Mill for Sale APPROXIMATE CAPACITIES All ball mills operate on the same principles One of these principle is that the total weight of the charge in the millthe sum of the weight of the grinding media the weight of the material to be ground and any water in the millis a function of the percentage of the volume of the mill it occupiAs a leading .

Get Price• Classification system efficiency • Effective mill power draw • Ball mill specific grinding rate • Ball mill grinding efficiency The circuit output is defined as the production rate of fines by the circuit It is calculated from three values: 1 The dry ore feed rate to the ,

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