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what is the cement grinding mills hicrome grinding media wear free

Apr 29, 2017 Recapitulation of Ball Wear Formulas. Nw number of balls added in time T to compensate for the ball wear. Nt total number of balls in the mill. Nt total number of balls in any interval. N1, N2, N3, etc. number of balls in the first, second, third, etc., intervals. D diameter of any ball under consideration.

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