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Efficient ore crushing and grinding method

An ore and high-efficiency technology, applied in the field of high-efficiency ore crushing and grinding, can solve the problems of inaccurate determination of the processing capacity of the stubborn stone crushing system, insufficient matching of large-scale mineral processing productivity, and large consumption of steel balls and liners, etc., to achieve Improve equipment operation efficiency, ensure the stability and quantity of ore sources, and improve efficiency

Active Publication Date: 2022-02-25
HEILONGJIANG DUOBAOSHAN COPPER LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the actual production, there are also defects such as large consumption of steel balls and liners, high energy consumption, unstable ore supply particle size, and large fluctuations in the amount of ore to be processed.
According to statistics, the energy consumption of the SABC process is about 12% to 20% higher than that of the conventional three-stage-closed-circuit crushing + ball milling process; at the same time, there are still problems in the rational treatment of stubborn stones, such as the amount of stubborn stones and the processing capacity of the stubborn stone crushing system. Accurately determined, the matching of large-scale beneficiation productivity is not good enough

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0030] An efficient ore grinding method, comprising the following steps:

[0031] Step 1, the raw ore is roughly crushed by a gyratory crusher to obtain a roughly crushed product, and the roughly crushed product is transported to a coarse ore pile through a belt to obtain the ore in the coarse ore pile;

[0032] In step 2, the ore in the coarse ore pile in step 1 is conveyed to the semi-autogenous grinding machine for grinding through the vibrating feeder and the semi-autogenous grinding feeding belt to obtain a semi-autogenous grinding product; The self-grinding and grinding products are screened by the linear vibrating screen to obtain the stubborn stones on the screen and the pulp under the screen; the pulp under the screen enters the pump pool;

[0033] In step 3, the stubborn stones on the screen described in step 2 are transported to the stubborn stone cone crusher for stubborn stone crushing through the belt, and the stubborn stone crushed product is obtained, and the s...

specific Embodiment approach 2

[0051] An efficient ore grinding method, comprising the following steps:

[0052] Step 1, the raw ore is roughly crushed by a gyratory crusher to obtain a roughly crushed product, and the roughly crushed product is transported to a coarse ore pile through a belt to obtain the ore in the coarse ore pile;

[0053] In step 2, the ore in the coarse ore pile in step 1 is conveyed to the semi-autogenous grinding machine for grinding through the vibrating feeder and the semi-autogenous grinding feeding belt to obtain a semi-autogenous grinding product; The self-grinding and grinding products are screened by the linear vibrating screen to obtain the stubborn stones on the screen and the pulp under the screen; the pulp under the screen enters the pump pool;

[0054] In step 3, the stubborn stones on the screen described in step 2 are transported to the stubborn stone cone crusher for stubborn stone crushing through the belt, and the stubborn stone crushed product is obtained, and the s...

specific Embodiment approach 3

[0072] An efficient ore grinding method, comprising the following steps:

[0073] Step 1, the raw ore is roughly crushed by a gyratory crusher to obtain a roughly crushed product, and the roughly crushed product is transported to a coarse ore pile through a belt to obtain the ore in the coarse ore pile;

[0074] In step 2, the ore in the coarse ore pile in step 1 is conveyed to the semi-autogenous grinding machine for grinding through the vibrating feeder and the semi-autogenous grinding feeding belt to obtain a semi-autogenous grinding product; The self-grinding and grinding products are screened by the linear vibrating screen to obtain the stubborn stones on the screen and the pulp under the screen; the pulp under the screen enters the pump pool;

[0075] In step 3, the stubborn stones on the screen described in step 2 are transported to the stubborn stone cone crusher for stubborn stone crushing through the belt, and the stubborn stone crushed product is obtained, and the stu...

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Abstract

The invention discloses an efficient ore crushing and grinding method, which belongs to the technical field of ore processing. The technical problem to be solved by the invention is that the defects of the traditional 3CB crushing and grinding process or SABC crushing and grinding process of a large dressing plant are overcome. The invention creatively designs a crushing and grading process of coarse crushing, semi-autogenous grinding (medium and fine crushing), hard rock (pre-checking oversize materials) crushing and returning to semi-autogenous grinding, and ball mill and hydrocyclone closed-loop grading, and develops a crushing and grading, hard rock treatment and semi-autogenous grinding feeding pretreatment process which is economical and reasonable and highly matched with ore properties. And the equipment operation rate and the beneficiation productivity of the semi-autogenous grinding and ball-milling ore grinding process can be effectively improved, the beneficiation cost can be reduced, and the labor operation intensity can be relieved. For an oversize beneficiation plant, the development of an optimal ore crushing, grinding, grading and conveying process matched with mine production has great significance for guaranteeing the normal production and operation of the beneficiation plant, the efficient utilization of beneficiation equipment and the stability of beneficiation indexes and production processing capacity.

Description

technical field [0001] The invention belongs to the technical field of ore processing, and specifically relates to an efficient ore grinding method. Background technique [0002] Crushing, grading and conveying of ore is an important operation procedure of the concentrator, which determines the overall equipment operation rate and production processing capacity of the concentrator. In recent years, most large-scale mines at home and abroad use the SABC grinding process (semi-autogenous grinding + ball milling + stubborn stone crushing) instead of the traditional 3CB grinding process (three sections and one closed circuit + ball milling). This process shows that the number of equipment is small and the process is simple. , Advanced and reliable, large processing capacity, high operation rate, small maintenance, small floor space, low construction cost, automatic control of the process, greatly reducing labor, improving labor productivity and other advantages. However, the ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C21/00B02C23/14
CPCB02C21/00B02C23/14
Inventor 赖桂华王金庆莫振军范富荣李诗仁刘伟肖长洪王岩徐继林黄一东
Owner HEILONGJIANG DUOBAOSHAN COPPER LTD
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