OFR 38-86 - On the Development of a Model-Based Control Strategy for Copper-Ore Flotation. 1986.
Dates
Publication Date
1986
Summary
During the last decade it has been established that conventional flotation control strategies based on classical control theory result in significant increases in grade, recovery, and operating -cost savings. In the current report a description of an advanced model -based control philosophy is presented. The derivation and verifica tion of a simplified flotation model is described. The implementation of a Kalman filter for estimation of unmeasured variables for input to controllers is discussed. Several control strategies using the model -based approach are described, emphasizing the nonlinear nature of the flotation plant, Expected trends in the implementation of such model -based flotation control strategies in the future are discussed. [...]
Summary
During the last decade it has been established that conventional flotation control strategies based on classical control theory result in significant increases in grade, recovery, and operating -cost savings. In the current report a description of an advanced model -based control philosophy is presented. The derivation and verifica tion of a simplified flotation model is described. The implementation of a Kalman filter for estimation of unmeasured variables for input to controllers is discussed. Several control strategies using the model -based approach are described, emphasizing the nonlinear nature of the flotation plant, Expected trends in the implementation of such model -based flotation control strategies in the future are discussed.
