浮选柱自动控制技术的发展与应用

针对当前浮选柱自动控制的研究现状,考虑到传统的人工操作系统的局限性与当前自动化的不足之处,以浮选柱的控制机理为出发点,提出其工作原理及其控制的可实施性.主要从加药量控制、液位控制、给矿浓度控制、进气量控制4个方面着重分析控制过程原理及检测仪器的应用情况.其中,加药量控制主要探讨了给定加药量与矿浆流量以及矿浆浓度的关系;...

Development and application of automatic control technology for flotation column

In view of the current research status of automatic control of flotation column, considering the limitations of the traditional manual operating system and the deficiencies of current automation, the working principle and the feasibility of the control mechanism of flotation column are studied. The principle of the control process and the application of the measuring instrument are analyzed mainly from four aspects, including dosage control, liquid level control, ore concentration control and air intake control. Among them, the relationship between the given dosage amount and pulp flow and pulp concentration is discussed. For liquid level control, two different instruments and equipment for detecting liquid level, ultrasonic level transmitter and static pressure level meter, are introduced. For the concentration control of feed ore, the relationship between the bottom flow pump frequency and the bottom flow concentration is described, and a mathematical model is established. For the control of air intake, the control mechanism and structure are mainly described, and two control methods are introduced. Finally, the development direction of automatic control technology of flotation column is discussed and proposed.