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Jan 07, 2015 · Figure: Open circuit mill 2. Closed Circuit: A closed circuit is the system in which the material at the outlet of the mill passes through a separator, driving the material with the required fineness to the storage silo and the coarse particles back to the mill inlet. 5.

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Wet Ball Mill Power Draw (Bond) Correction for wet open circuit since it requires more power than wet closed circuit.Based on the sieve size used to determine the work index and the percentage of the product passing this size. Calculate the optimum power consumption to operate the mill. Solution: P↓M / M↓B = 15.6Φ↓C (1 – 0.937

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Power Consumption Of Ball Mill. If P is less than 80% passing 70 microns, power consumption will be. Ball Mill Power Calculation Example. 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 .

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Current methods of power consumption calculation of a mill drive do not allow determining the power consumption for ball drum mills with a crosslongitudinal motion of the grinding media.

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CASE STUDY A 1.5 mio t/a cement plant is having a closed circuit ball mill for cement grinding: The mill has been operating with satisfactory performance interms of system availability and output, however power consumption. ton power consumption of cement mill calculation mksp.

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mill used, i.e. ball mill or vertical roller mill. Typically, the motor of the ball mill consumes about 14 15 kWh/ ton of raw mix whereas the VRM motor uses 7 8 kWh/ ton. On an overall basis, VRM consumes about 20 % lower specific energy than conventional closed circuit ball mills and is being widely used for raw material and coal grinding

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