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Automatic control system and method for liquid level of flotation machine used for beneficiation

A liquid level automatic control and control system technology, applied in the direction of liquid level control, control/regulation system, non-electric variable control, etc. Accurately judge the liquid level and other issues to achieve the effect of ensuring switching, avoiding impact and avoiding damage

Pending Publication Date: 2020-01-14
DANDONG DONGFANG MEASUREMENT&CONTROL TECHCO
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Problems solved by technology

[0004] In the process of manually controlling the liquid level of the flotation machine, the liquid level cannot be accurately judged, and the adjustment of the liquid level is lagging behind, and the float stroke route is easily blocked during the process of automatically controlling the liquid level of the flotation machine, and the measurement of the liquid level gauge is greatly affected by the environment, etc. question

Method used

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  • Automatic control system and method for liquid level of flotation machine used for beneficiation

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Embodiment Construction

[0028] exist figure 1 Below the overflow weir (23) of the middle flotation machine, it is divided into a pulp layer and a foam layer. The floating ball (22) floats on the flotation liquid surface between the pulp layer and the foam layer. Change and move, reflective disc (18) moves with floating ball (22) under the promotion of dishing ball connecting rod (19). A laser rangefinder (17) is used to detect the position of the reflective disk (18) and transmit the signal to the "Siemens LOGO!" logic module control system (9). "Siemens LOGO!" logic module control system (9) automatically judges the liquid level of the flotation machine according to the received signal, and judges how to adjust the liquid level of the flotation machine, and converts the judgment result into a command signal and outputs it to the motor of the electric actuator ( 14). The motor (14) is connected to the drive shaft (12) through a coupling (15), the drive shaft (12) is connected to the drive claw hold...

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Abstract

The invention relates to an automatic control system and method for the liquid level of a flotation machine used for beneficiation, particularly to an automatic control system for controlling, optimizing and upgrading the liquid level of the flotation machine in a flotation process of the beneficiation industry. The automatic control system and method of the invention overcome the problems that aliquid level cannot be accurately judged, liquid level adjustment lags behind, a floating ball stroke route is prone to blockage in the process of automatic controlling of the liquid level of the flotation machine, and liquid level meter measurement is greatly affected by environment in the process of manual controlling of the liquid level of the flotation machine. According to a technical schemein the invention, a flotation machine liquid level detection device which is originally designed is used for accurately measuring the liquid level of the flotation machine; an electric actuating device with a special structure is applied to timely, efficiently and accurately adjust the opening degree of a conical valve, so the liquid level of the flotation machine is effectively adjusted; the whole automatic control system for the liquid level of the flotation machine realizes automatic control of the whole process through the Siemens LOGO! logic module, can realize switching between automaticcontrol and manual control, and can perform fault alarm; and the whole system is safe and reliable and is convenient to install and overhaul.

Description

technical field [0001] The invention relates to an automatic control system and control method for liquid level of a mineral processing flotation machine, in particular to an automatic control system and a control method for optimizing and upgrading the liquid level control of a flotation machine in the flotation process of the mineral processing industry. Background technique [0002] The flotation machine is the main equipment in the flotation process section of the beneficiation industry. The flotation process mainly realizes the effective control of the concentrate flotation grade by adjusting the parameters such as the dosage of the chemical, the amount of air, and the liquid level of the flotation machine. The liquid level of the flotation machine is Important parameters affecting the production index of the concentrate flotation process. Below the overflow of the flotation machine, it is divided into a pulp layer and a foam layer. The interface between the pulp layer ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/14G05D9/12
CPCB03D1/14G05D9/12
Inventor 王子亮王晨光蒋宝庆李晓刚麦强杜国军毕文关兵宋海峰李立国王建辉张生祥
Owner DANDONG DONGFANG MEASUREMENT&CONTROL TECHCO
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