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2018/04/20· The first two Grinding Efficiency Measurement examples are given to show how to calculate Wio and Wioc for single stage ball mills. Figure 1. The first example is a comparison of two parallel mills from a daily operating report. Mill size 5.03m x 6.1m (16.5′ x 20′ with a ID of 16′). This example shows that Mill 2 is slightly more efficient than Mill 1 even though it has a higher power

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2) The grinding rate equation was expressed under the stationary state grinding condition by the mass balance equation which is composed of the breakage parameter, selection parameter and specific rate of separation. 3) The