浮选过程控制方法研究  

Research on Methods of Controlling Flotation Process

作　　者：刘晓青[1] 程全[1] 李晋[1] 周小东[1] 

机构地区：[1]周口师范学院机械与电气工程学院,河南周口466001

出　　处：《矿产综合利用》2016年第5期14-18,共5页Multipurpose Utilization of Mineral Resources

基　　金：国家自然科学基金(11405280);河南省重点科技攻关项目(132102210179;142102210599);河南省自然科学基金研究项目资助(152300410134)

摘　　要：浮选过程特性复杂,为了避免人工操作的随意性和主观性,实时调整生产过程,确保其稳定顺利进行,对浮选工艺设备及某选矿厂整个工艺流程进行了分析。在此基础上,确定了控制目标,即保持加药量、给矿浓度、给矿量恒定。针对各自特点,制定了相应的控制策略,采用开/关电磁阀对加药量进行控制,采用PID控制器对给矿浓度进行调节,采用PI控制器对给矿量进行调节。某选矿厂红矿反浮选项目应用运行结果表明,可以维持浮选过程重要生产设备稳定运行,保持主要工艺参数稳定。Flotation is a complex process.In order to avoid arbitrariness and subjectivity of manual operation,to adjust the production process in real time,consequently ensure the production process can be conducted stably and smoothly,flotation mechanism and the entire process of a concentrator are analyzed.On this basis,control objectives are identified,which is to keep the dosage,the concentration of the ore,the ore volume constant.For each characteristic,the corresponding control strategy is developed.On / off solenoid valves are used for control of dosage,PID controller is used to adjust the ore concentration,and PI controller is used to adjust the amount of ore. Applied to the project of‘anti-flotation of red ore for a concentrator,the result shows that it can maintain the stability of the important process parameters and stable operation of important production equipments in the floatation process.

关 键 词：浮选过程 过程控制 PID控制 参数整定 

分 类 号：TD989[矿业工程—选矿] TP273[自动化与计算机技术—检测技术与自动化装置]