Method and apparatus for controlling ore feeding amount of grinding mill

Abstract

The present invention discloses a method and an apparatus for controlling the ore feeding amount of a grinding mill. The method comprises: acquiring the current mill sound state value, the current main shaft oil pressure and the current mill power of the grinding mill, and calculating the mill load parameter according to the mill sound state value and the mill power; determining the current oil pressure state and the current load parameter state of the grinding mill according to the oil pressure value range of the main shaft oil pressure and the load value range of the mill load parameter; reducing the ore feeding amount of the grinding mill based on response to the grinding mill currently being at the high load state; and increasing the ore feeding amount of the grinding mill based on response to the grinding mill currently being at the low load state. With the technical scheme, large interference of the complex and changeable condition during the actual production on the determination of the grinding mill load state can be avoided, such that the ore feeding amount adjustment is accurate, the crude ore treatment amount of the grinding mill is ultimately increased, the quality and the efficiency of the ore grinding process are improved, and the energy consumption per ton of concentrate is reduced.

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 ore feed rate of an ore mill. 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 components can be dissociated from each o...

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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 amount of ore in a grinding machine, so as to solve the problems caused by determining the load state of the grinding machine according to the grinding sound of the grinding machine in the prior art. Technical problems of inaccurate mining machine adjustment and grinding machine load control

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