Mineral Processing Automation - Control of Flotation Tank Level

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In recent years, flotation column as a new and efficient mineral processing equipment in the case of colored and black gold, coal, non-metallic applications and chemical mineral separation in the field of continuous expansion. With the promotion of industrial applications, it is particularly important to strengthen research and development in liquid level detection and automatic control. During the flotation process, the slurry level of the flotation equipment often changes due to factors such as changes in slurry properties and fluctuations in flow. When the liquid level is too high, the concentrate scraping amount is too large and the grade is lowered; and when the liquid level is too low, the concentrate yield is reduced, thereby lowering the metal recovery rate. It can be seen that the control of the slurry level in the flotation tank is a very important factor that directly affects the recovery rate and the quality of the concentrate.

Because the correlation between the flotation tanks is very strong, for the flotation tanks to be connected in series, the ore properties vary greatly, and the mines are reground and returned, the liquid level of the flotation tank is not only labor intensive, but also very adjustable. Not timely, thus affecting the mineral processing indicators.

The control method is as follows: The level gauge is used to detect the liquid level of the flotation tank and the opening degree of the actuator control valve, and the control loop automatically controls the opening degree of the gate valve according to the liquid level condition, thereby controlling the liquid level space within the industrial requirement range.

Control system features:

● Adopting fuzzy coordination control method according to the characteristics of the process, which can realize stable control of the liquid level of multiple series flotation tanks;

● Provide automatic and manual switching function, which can be controlled automatically or manually.

● The method of ultrasonic + auxiliary measuring device is used to detect the liquid level of the flotation tank, and the detection is more accurate;

● Excellent control software makes the system more intelligent;

● User-friendly configuration screen makes operation easier and more convenient.

Economic benefits:

● Optimize the amount of flotation agent added, optimize the flotation effect, and improve the metal recovery rate;

● Reduce the drug consumption of flotation;

● Stable production, easy operation and easy management.

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