A method and device for controlling ore feeding amount of a grinding machine

A technology of ore grinding machine and ore feeding rate, which is applied in the field of mineral processing process control, and can solve the problem of inaccurate control of the load of the ore feeding machine to adjust the grinding machine

Active Publication Date: 2015-10-14
ZHONGYE-CHANGTIAN INT ENG CO LTD +1
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  • Claims
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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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  • A method and device for controlling ore feeding amount of a grinding machine
  • A method and device for controlling ore feeding amount of a grinding machine
  • A method and device for controlling ore feeding amount of a grinding machine

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Embodiment Construction

[0090] In order to enable those skilled in the art to better understand the solutions of this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only It is a part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of this application.

[0091] After long-term research, the inventor found that the inaccurate adjustment of the ore feed rate of the mill load control in the prior art is because the load state of the mill is only determined according to the grinding sound of the mill. Grinding sound refers to the noise generated by the grinding machine. The higher the decibel level, the smaller the filling amount of th...

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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] This application relates to the field of beneficiation process control, in particular to a method and device for controlling the ore feed amount of a grinding machine. Background technique [0002] In the production process of ore smelting, because the raw ore obtained by mining cannot meet the smelting requirements, the raw ore needs to be beneficiated first to obtain a concentrate that meets the smelting requirements, and then used in the smelting process. The beneficiation operation mainly includes the crushing and screening of raw ore, grinding and grading, sorting, and dewatering of concentrate. Among them, the grinding process is to crush the crushed ore to a suitable particle size and provide the crushed mineral to the sorting process. In the grinding process, because the ore is crushed, the effective mineral components can be dissociated from the gangue, and different effective mineral components can be dissociated from each other. Grinding operat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B02C25/00
Inventor 李宗平孙英徐炜李丹李刚
Owner ZHONGYE-CHANGTIAN INT ENG CO LTD
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