串级浮选槽液位的前馈控制设计方法  

A DESIGN OF FEED-FORWARD CONTROL FOR FLOTATION CELL LEVEL

作　　者：王赫[1] 李映根[2] 王焕钢[1] 徐文立[1] 

机构地区：[1]清华大学自动化系,北京100084 [2]北京矿冶研究总院,北京100070

出　　处：《有色金属（选矿部分）》2010年第6期41-44,12,共5页Nonferrous Metals（Mineral Processing Section）

摘　　要：串级浮选槽液位的稳定性直接影响浮选生产质量,但由于各槽液位变化相互影响,目前现场广泛应用的常规PID控制效果较差。对此,本文提出了一种PID控制器参数整定方法,有效减小了液位调节过程中各槽的相互影响,并辅以一种前馈控制以增加液位调节速度。工业现场试验结果证明了本文所提方法简单易用,并且具有优良的控制性能。One way to make flotation performance better is to improve cell level control.However,the level control performance using the traditional PID-controller is undesirable because of interactions between the cells.To overcome this,a modulating method of the PID-controllers parameters is developed,which reduces the interaction effectively.At the same time,a feed-forward control strategy is developed to speed the adjustment.The controller has simple structure and has been successfully applied to a flotation system in an industrial setting.

关 键 词：串级浮选槽 液位控制 前馈控制 PID控制 

分 类 号：TD456[矿业工程—矿山机电] TD928.9