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Conical Grinding Law

Grinding was performed using a xmq240 90 laboratoryscale conical ball mill wuhan exploring machinery factory, wuhan, chinahe diameter and length of the intermediate cylinder part of mill were 240 and 90 mm, respectively e operational speed was kept at 96 rpm 68 critical speed according to the literature e mass of the 35 mm balls alloy steel balls, density of 7 gcm 3.