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whar is the average rate in changing ball mill liners 1

Sep 01, 1999 The average loss of rotational rate per shell is given by 1 N N m z x r m zr i where Nthe average loss of rotational rate per shell in revmin, N m rotational rate at mill shell in revmin, calculated as 2 N m 42.3 D m D m,r m mill diameter and radius at the mill shell liner m, the fraction of theoretical ...