浮选矿浆液位过程的IMC-PID设计与实现

Design and Implementation of Pulp Level Control in Flotation Based on IMC-PID

浮选过程是选矿生产中的关键环节,其液位要求严格控制以保证金属回收率.采用一种基于内模控制(IMC)设计的PID控制器(IMC-PID)来实现选矿浮选矿浆液位的自动控制,具有结构简单、整定参数少、鲁棒性强等优点.介绍了IMC-PID的基本原理和设计步骤,给出了液位控制系统的具体实现.应用表明,基于IMC-PID的浮选液位控制系统提高了浮选的金属回收率,保证了精矿品位,具有良好的推广价值.

Flotation is a key process in mineral processing production, in which flotation level must be strictly controlled to ensure high metal recovery rate. A PID controller （[MC-PID） which is designed based on Internal Model Control（IMC） is applied to bring flotation level under automatic control. The model has such advantages as simple structure, few adjustable parameters and strong robustness. Moreover, the basic principle and design method of IMC-PID are introduced, and a flotation level control system is presented. The practical application indicates that the system has improved the metal recovery rate, which ensures fine quality of ore grade, thus having broad implications.