Method and device for controlling feed concentration of ore grinding machine

Abstract

The invention discloses a method and a device for controlling feeding concentration of an ore grinder. The method comprises the following steps of obtaining a current sound grinding state value of the ore grinder, an oil pressure of a main shaft and an ore grinder power, and calculating a load parameter of the ore grinder according to the current sound grinding state value and the ore grinder power; determining the current oil pressure state and a load parameter state of the ore grinder according to an oil pressure numerical range of the oil pressure of the main shaft and a load numerical range of the ore grinder; reducing the feeding concentration of the ore grinder in response to a high oil pressure state and a high load parameter state that the ore grinder are simultaneously positioned currently; and increasing the feeding concentration of the ore grinder in response to a low oil pressure state and a low load parameter state that the ore grinder is simultaneously positioned currently. According to the technical scheme provided by the invention, when the load state of the ore grinder is high, the feeding concentration is reduced, the load of the ore grinder is reduced, and a mine material is fully smashed; when the load state of the ore grinder is low, the feeding concentration is improved, the efficiency of an ore grinding process is improved, and the energy consumption of the unit ton finished ore is reduced.

Description

technical field [0001] The present application relates to the field of beneficiation process control, in particular to a method and device for controlling the concentration of ore feeding by a mill. Background technique [0002] In the production process of ore smelting, since the raw ore obtained by mining does not meet the smelting requirements, it is necessary to conduct beneficiation of the raw ore first, so as to obtain concentrates that meet the smelting requirements, and then use it in the smelting process. The beneficiation operation mainly includes the crushing and screening of raw ore, grinding and grading, sorting, concentrate dehydration and other links. Among them, the grinding process is to pulverize the crushed ore to a suitable particle size, and provide the crushed ore to the sorting process. During the grinding process, as the ore is crushed, the effective mineral components can be dissociated from the gangue, and different effective mineral components can...

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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 feed concentration of the ore mill to solve the problem that the load state of the grinder deviates from normal due to the use of a fixed feed concentration in the prior art. The technical problem that the grinding efficiency cannot meet the requirements and the raw ore processing capacity is reduced

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