Mass flow prediction for reagent control at Les Mines Selbaie

CIM Bulletin, Vol. 87, No. 985, 1994
Claude Bazin, Department of Mining and Metallurgy, Universite Laval, Ste-Foy, Quebec, and Robin Perry, Les Mines Selbaie, Joutel, Quebec
Discrete transfer functions which use the grinding circuit feed tonnage to predict mass flowrates at reagent addition points in a flotation circuit were calibrated using a dynamic grinding/flotation circuit simulator. Predicted mass flow values are multiplied by reagent addition ratios to obtain actual reagent flow. The transfer functions are currently integrated into the distributed control system of Les Mines Selbaie.
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