Raw Mill Vrm Material Retention Time

Aug 11, 2010 Re MATERIAL RETENTION TIME IN A BALL MILL amp VRM. You could do that by measuring the material flowrate Q tonsh through the mill as well as the quantity M tons of material that accumulates within the mill. The retention time, also called residence time, is the ratio MQ h . The flowrate Q could be measured from the production P tonsh and the circulating load C and given by

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