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Purification method of coal mine distribution underground reservoir water resource

An underground reservoir, distributed technology, applied in chemical instruments and methods, water/sewage treatment, water/sludge/sewage treatment, etc., can solve the loss of groundwater, cannot solve the seasonal imbalance of water resource supply, unfavorable ecological environment, etc. problems, to achieve the effect of reducing treatment costs, facilitating downhole reuse, and realizing self-purification

Active Publication Date: 2013-02-27
CHINA SHENHUA ENERGY CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods and technologies are all methods of purifying mine water through underground or ground treatment. For the western region, it is impossible to solve the problem of seasonal imbalance of water supply. At the same time, the loss of groundwater is not conducive to the restoration of the local ecological environment.

Method used

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  • Purification method of coal mine distribution underground reservoir water resource

Examples

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Effect test

Embodiment 1

[0028] According to the pollution sources of the mine water in Daliuta Mine in the Shendong Mining Area of ​​Shenhua Group, the mine water polluted by mining coal dust and the mine water polluted by oily chemicals caused by mining hydraulic equipment are collected separately, and different types of mine water are separated by water tanks. to store;

[0029] The space after mining at the 12201 coal mining face of Daliuta Mine in the Shendong mining area of ​​Shenhua Group is used as a distributed underground reservoir, and the collapsed coal gangue layer (3 meters in height; the maximum fragmentation degree is 800mm) is used as the distributed underground water reservoir. The purification filter layer of the reservoir, and water injection holes are provided at the highest end of the distributed underground water reservoir, and water pumping holes are provided at the lowest end of the distributed underground water reservoir (the distance between the water injection hole and the w...

Embodiment 2

[0032] According to the pollution sources of the mine water in Daliuta Mine in the Shendong Mining Area of ​​Shenhua Group, the mine water polluted by mining coal dust and the mine water polluted by oily chemicals caused by mining hydraulic equipment are collected separately, and different types of mine water are separated by water tanks. to store;

[0033] The space after the mining of the coal mining face of the Daliuta Mine in the Shendong Mining Area of ​​Shenhua Group is used as a distributed underground reservoir, in which the collapsed coal gangue layer (height is 3.5 meters; the maximum fragmentation degree is 600mm) is used as the said The purification filter layer of the distributed underground reservoir, and a water injection hole is provided at the highest end of the distributed underground reservoir, and a water pumping hole is provided at the lowest end of the distributed underground reservoir (between the water injection hole and the pumping hole The distance be...

Embodiment 3

[0036] According to the pollution sources of the mine water in Daliuta Mine in the Shendong Mining Area of ​​Shenhua Group, the mine water polluted by mining coal dust and the mine water polluted by oily chemicals caused by mining hydraulic equipment are collected separately, and different types of mine water are separated by water tanks. to store;

[0037]The space after mining at the 22613 coal mining face of the Daliuta Mine in the Shendong Mining Area of ​​Shenhua Group is used as a distributed underground reservoir, and the collapsed coal gangue layer (height is 4.0 meters; the maximum fragmentation degree is 400mm) is used as the distributed underground water reservoir. The purification filter layer of the reservoir, and water injection holes are provided at the highest end of the distributed underground water reservoir, and water pumping holes are provided at the lowest end of the distributed underground water reservoir (the distance between the water injection hole and ...

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Abstract

The invention relates to a purification method of a coal mine distribution underground reservoir water resource. The purification method includes the following steps: (1) separate collection of mine water; (2) filtering and purification of the distribution underground water resource; and (3) circulation filtering and purification of a distribution underground reservoir. The purification method has significant meaning for protection of the underground water resource and can achieve great economical benefit and social benefit. In the aspect of space, the distribution underground reservoir can be formed preliminarily through resource exploiting, water is not required to be sucked out during a coal mining process, coal mining energy consumption is reduced, and water retention mining is achieved. In the aspect of time, even deployment of water utilization can be achieved, and the problem that water utilization is difficult and unbalanced in a mine lot is solved.

Description

technical field [0001] The invention belongs to the comprehensive utilization of mining engineering and water conservancy engineering, and in particular relates to a method for purifying water resources of distributed underground reservoirs in coal mines. Background technique [0002] my country is a water-short country, and the shortage of water resources poses a serious threat to the development of the national economy and the improvement of people's lives. Mine water is unavoidable in the process of coal mining. As a precious water resource, the mine water discharged by key state-owned coal mines alone is as high as 2.2 billion tons every year. On average, every ton of coal mined requires the discharge of 2 tons of wastewater. On the one hand, the discharge of mine water not only wastes a lot of precious water resources, but also easily constitutes serious environmental pollution to the surrounding environment. On the other hand, there are abundant coal resources in the ...

Claims

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Application Information

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IPC IPC(8): C02F1/00
Inventor 张建民张凯杨俊哲贺安民李全生陈书社胡振琪
Owner CHINA SHENHUA ENERGY CO LTD
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