Flotation process yield optimization control method

Abstract

The invention discloses a flotation process yield optimization control method, which comprises: real-timely acquiring the flotation machine liquid level measurement value, the flotation column liquidlevel measurement value, the flotation foam flow rate measurement value and the online grade measurement value in flotation process key operation; determining the validity of the acquired data, and controlling the output value of the system at an unchanged state if the invalid data exists; according to a crude ore grade measurement value and an enrichment ratio set value, automatically adjusting aconcentrate grade target control range; determining the change trend of the concentrate grade, the tailing grade and the foam flow rate by recording the fluctuation and the threshold value of the flotation foam flow rate measurement value and the online grade measurement value for a certain time; and according to the deviation and the variation of the online measurement value and the set value, automatically adjusting the yield set value in the flotation process key operation through a yield optimization control rule. With the method of the present invention, the key operation yield set valuecan be correctly and timely optimized so as to effectively reduce the fluctuation of the concentrate grade and the recovery rate and ensure the continuous, efficient and stable operation of the flotation process.

Description

technical field [0001] The invention relates to the technical field of automatic control of the dressing and smelting process industry, in particular to a method for optimizing the production rate of a flotation process. Background technique [0002] During the mineral processing production process, the nature of the raw ore changes frequently, and the fluctuation range is also large, which may easily cause large fluctuations in the foam production rate of each operation in the flotation process. The stability of production indicators has had a negative impact. In view of this, in the actual flotation production process, it is necessary to adjust the liquid level of the key operation flotation equipment (including flotation machines and flotation columns) in time, so as to stabilize the flotation yield, avoid deterioration, and improve the quality and recovery of concentrates. rate, resulting in direct economic losses. [0003] However, the existing technical solutions rel...

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Problems solved by technology

[0003] However, the existing technical solutions rely too much on workers’ experience and uninterrupted inspections, which not only increases the labor cost of the concentrator, but also easily leads to abnormal fluctuations in the production process and even fine output due to the inertia of workers and differences in operating experience. Products whose ore grade does not meet the standard

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