A kind of efficient ore crushing 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: 2022-06-28
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] In 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 heap through a belt to obtain the ore in the coarse ore heap;

[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 th...

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] In 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 heap through a belt to obtain the ore in the coarse ore heap;

[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 ...

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PUM

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Abstract

An efficient ore crushing and grinding method belongs to the technical field of ore processing. The technical problem to be solved by the present invention is the deficiency in the traditional 3CB crushing and grinding process or SABC crushing and grinding process of large mineral processing plants. The present invention creatively designs the crushing and grading process of "coarse crushing + semi-autogenous grinding (medium fine crushing) + stubborn stone (pre-check sieve material) crushing and returning to semi-autogenous grinding + ball mill + cyclone closed-circuit classification", and develops a Economical and reasonable crushing and grading, pebble treatment, and semi-autogenous grinding feed pretreatment processes that are highly compatible with ore properties can effectively improve the equipment operation rate and beneficiation productivity of the semi-autogenous grinding + ball milling process, and can reduce Mineral processing costs, reduce labor intensity. For extra-large concentrators, the development of the best ore crushing, grading and conveying process that matches the mine production is of great importance to ensure the normal production and operation of the concentrator, the efficient use of the beneficiation equipment, the stability of the beneficiation index and production and processing capacity significance.

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 Patents(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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