Intelligent expert control method and application in SABC grinding circuit based on hybrid model

SABC grinding circuit (Semi Autogenous + Ball mill + Crushing circuit) is an important typical configuration in comminution production, which has control problems such as uncertainty and strong coupling. In this paper, an intelligent expert control method for grinding process based on hybrid model is proposed. First, a hybrid model driven by mechanism and data is proposed to realize online perception of production indicators such as particle size in cyclone overflow; then, the application scope of expert rules is improved by intelligent correction of uncertainties; finally, the process mechanism knowledge and the online perception data of the hybrid model are integrated to realize the coordinated production of each sub process in the target SABC circuit. The method proposed in this paper has been applied in an intelligent expert control system of SABC circuit in a concentrator to meet the production target.