Modelling load and product distribution in autogenous and semi-autogenous mills: pilot plant tests

CIM Bulletin, Vol. 84, No. 946, 1991
Mary Goldman, Gilles Barbery and Frederic Flament, GRAIIM, Universite Laval, Quebec
Abstract Pilot plant testwork on autogenous and semi-autogenous grinding was conducted at the Centre des Recherches Minerales du Quebec (CRM) to investigate the effect of ball addition, solids concentration in the feed, specific energy consumption and feed size distribution.
A mathematical model that incorporates breakage and surface mechanisms of loss of mass was developed to predict load size distribution of autogenous and semi-autogeneous mills. An empirical model was used to predict product size distribution of autogenous and semi-autogeneous mills.
Keywords: Autogenous grinding, Semi-autogenous grinding, Abrasion, Breakage, Modelling.
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