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Coal gangue downhole processing method

A processing method, coal gangue technology, applied in grain processing, chemical instruments and methods, wellbore lining, etc., can solve problems such as occupation, environmental pollution, large land, etc., to increase safety, increase coal quality, reduce transportation costs and The effect of pollution on the environment

Inactive Publication Date: 2020-06-12
山西鸿太旭飞建设有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Coal gangue will also cause serious pollution to the environment after raining and muddying
The current method of coal mines to deal with coal gangue is to stack it in the open air, which takes up a lot of land

Method used

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  • Coal gangue downhole processing method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] This embodiment discloses a coal gangue underground processing method, comprising the following steps:

[0030] The initial screening of the mine resources mined in the coal mining face is carried out, and the mined raw materials are put into the gear-type roller screen. The gear-type roller screen is composed of rolling shafts arranged horizontally. There is a plate, and the fine-grained material passes through the gap between the rollers or plates, and the large material is driven by the roller to move to the other end and discharged from the end. At the same time, it has the function of crushing, and the coal can be separated according to the hardness difference between coal and gangue. Screen out large pieces of coal and coal gangue, and keep small pieces of coal and coal powder. After secondary screening of bulk coal and coal gangue, the coal gangue is transported to the gangue warehouse through the belt for storage.

[0031] The secondary screening adopts TDS int...

Embodiment 2

[0035] The initial screening of the mine resources mined in the coal mining face is carried out, and the mined raw materials are put into the gear-type roller screen; the gear-type roller screen is vibrating screening, which can screen out large pieces of coal and coal gangue, and keep small pieces Coal and pulverized coal. After secondary screening of bulk coal and gangue, the bulk coal gangue is transported to the gangue warehouse by belt for storage.

[0036] The secondary screening adopts TDS intelligent screening machine to screen and separate bulk coal and coal gangue through X-ray screening. The screened coal is transported to the mine for storage and sales, and the coal gangue is transported to the gangue warehouse through the conveyor belt for storage.

[0037] Put the coal gangue stored in the gangue bin into the jaw crusher for primary crushing. The jaw crusher can crush large pieces of coal gangue into small pieces. The coal gangue that has been crushed for the f...

Embodiment 3

[0040] The initial screening of the mine resources mined in the coal mining face is carried out, and the mined raw materials are put into the gear-type roller screen; the gear-type roller screen is vibrating screening, which can screen out large pieces of coal and coal gangue, and keep small pieces Coal and pulverized coal. After secondary screening of bulk coal and gangue, the bulk coal gangue is transported to the gangue warehouse by belt for storage.

[0041] The secondary screening adopts TDS intelligent screening machine to screen and separate bulk coal and coal gangue through X-ray screening. The screened coal is transported to the mine for storage and sales, and the coal gangue is transported to the gangue warehouse through the conveyor belt for storage.

[0042] Put the coal gangue stored in the gangue bin into the jaw crusher for primary crushing. The jaw crusher can crush large pieces of coal gangue into small pieces. The coal gangue that has been crushed for the f...

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Abstract

The invention provides a coal gangue downhole processing method. The coal gangue downhole processing method comprises the following steps that excavated coal gangue is screened, coal is conveyed out of a mine, and the coal gangue is screened and left under the mine; the coal gangue is conveyed to a gangue warehouse to be stored; the coal gangue is subjected to smashing treatment; a mine state is analyzed, and construction is conducted on the mine with the coal gangue as a raw material according to the mine state. According to the coal gangue downhole processing method, by classifying the coaland the coal gangue under the mine, the coal quality is improved, and the sorting and cleaning cost of the coal after the coal is conveyed out of the mien is reduced. For the produced coal gangue, themine is reinforced specifically according to the situation of the mine with the coal gangue as the raw material, and the safety of the mine is improved. Processing of the coal gangue is completed under the mine, the cost for conveying the coal gangue out of the mine is reduced, pollution to the environment is reduced, and the coal gangue downhole processing method can be widely applied to the field of coal mining.

Description

technical field [0001] The invention relates to the field of coal mining, in particular to an underground treatment method for coal gangue. Background technique [0002] Coal gangue is the solid waste discharged during the coal mining and washing process, and its output accounts for about 15% of the coal output. According to the statistics of authoritative departments, my country's coal gangue has accumulated more than 5 billion tons, and it is still increasing at a rate of 300-350 million tons per year. [0003] Coal gangue contains combustibles such as residual coal, carbonaceous mudstone, and wood chips. If it is not handled properly, it will spontaneously ignite and release harmful gases such as carbon monoxide, carbon dioxide, sulfur dioxide, and hydrogen sulfide, seriously polluting the environment of the mining area. Coal gangue will also cause serious pollution to the environment after raining and muddying. The current way of coal mines to deal with coal gangue is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C21/00B02C23/14B07B1/28E21B33/13E21D11/10E21F15/00
CPCB02C21/00B02C23/14B07B1/28E21B33/13E21D11/10E21F15/005
Inventor 郭旭郭陆平李卫东郭颜军刘雷刚米立影张瑞忠李红新刘瑞军李涛胡子航
Owner 山西鸿太旭飞建设有限公司
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