A method and device for controlling the liquid level of the slurry pump pool during the grinding and grading process

Abstract

The invention discloses a method and a device for controlling a liquid level in an ore pulp pump sump during ore grinding and classification. The method comprises the steps of acquiring a first actual liquid level of the pump sump in the beginning of a latest adjustment cycle, and a second actual liquid level of the pump sump at the end of the latest adjustment cycle, calculating a variation value of an ore pulp volume of the pump sump in the latest adjustment cycle according to ore pulp volumes formed by the first actual liquid level and the second actual liquid level in the pump sump respectively, calculating an adjustment value of an output flow based on the variation value of the ore pulp volume, and adjusting the current output flow of the pump sump with the adjustment value of the output flow. With the adoption of the technical scheme, the ore pulp flow output by the pump sump can be adjusted to the flow required to balance ore pulp input and output of the pump sump more precisely according to the adjustment value calculated by the variation value of the ore pulp volume, so that the stable liquid level in the pump sump can be kept more precisely, and an ore grinding and classification effect is more stabilized indirectly.

Description

technical field [0001] The present application relates to the field of mineral processing process control, in particular to a method and device for controlling the liquid level of a pump pool during the grinding and grading process. Background technique [0002] In the production process of ore smelting, since the raw ore obtained from mining cannot meet the smelting requirements, it is necessary to process the raw ore first to obtain concentrates that meet the smelting requirements, and then use them in the smelting process. The beneficiation operation mainly includes crushing and screening of raw ore, grinding and grading, sorting, concentrate dehydration and other links. Among them, the grinding process is to crush the crushed ore to a suitable particle size, and provide the crushed minerals to the sorting process. During the grinding process, since the ore is crushed, the effective mineral components can be dissociated from the gangue, and different effective mineral co...

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Problems solved by technology

[0005] The technical problem to be solved by this application is to provide a method and device for controlling the liquid level of the pump pool during the grinding and grading process, so as to solve the problem of real-time based on the actual liquid level of the pump pool at the current moment and the preset benchmark in the prior art. The difference between the liquid levels is used to adjust the output flow of the pump pool linearly related to the technical problem of inaccurate adjustment of the output flow of the pump pool

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