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Coal mine underground water processing method

A treatment method, underground water technology, applied in mining wastewater treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve the problems of polluting the surrounding environment of the mining area, wasting water resources, etc., and achieve the reduction of secondary Effects of pollution, energy saving, and workload reduction

Inactive Publication Date: 2015-06-24
XIAN UNIV OF SCI & TECH
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Problems solved by technology

However, underground water is the largest waste water discharged by coal mines. If it is discharged directly without treatment, it will not only pollute the surrounding environment of the mining area, but also be a serious waste of water resources.

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  • Coal mine underground water processing method

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Embodiment Construction

[0015] The technical solutions of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0016] Water Quality Analysis of Underground Water in Coal Mine

[0017] Underground water in coal mines mainly comes from underground operations in coal mines. During the mining process of shafts, roadways, chambers and coal seams, due to the need to pass through underground aquifers and a large amount of rain water, floor water, drilling water and Fire sprinklers, etc., so groundwater continues to flow into the well. At the same time, a large amount of mine wastewater will also be produced in the process of coal mine production.

[0018] According to the source analysis of underground water, underground water is mainly composed of surface water, groundwater and mine wastewater. The water quality of groundwater in most parts of my country is not much different, so the water quality of underground water is...

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Abstract

The invention discloses a coal mine underground water processing method. The method comprises the following steps: dividing a water treatment plant into a ground part and an underground part, simultaneously dividing the underground water into an underground wastewater part and an underground water part, directly collecting the uncontaminated underground water to the ground water treatment plant and disinfecting for supplying the ground and the underground domestic water, and collecting the uncontaminated underground wastewater to an underground sump to process; medicating the primary treated underground water and performing mixed reaction on the magnetic powder, introducing into an underground super magnetic separator to perform secondary treatment and removing the impurities of the primary sedimentation incompletely processed suspended matters; and completely discharging the primary sedimentation and secondary treatment generated impurities to an underground sludge tank, performing filter pressing, promoting the coal slime to the ground as a coal mine boiler coal, and recycling the magnetic powder. By adopting a super magnetic separation technology, the use of the medicines such as a coagulant is effectively reduced, the secondary pollution of the water quality is relieved, the purifying effect is good and the method is worthy of popularization.

Description

technical field [0001] The invention belongs to the technical field of coal mine water treatment, and in particular relates to a coal mine underground water treatment method. Background technique [0002] my country is a country with a serious shortage of water resources. As far as the coal industry is concerned, 71% of the country's 86 key state-owned coal mining areas are short of water, 40% are seriously short of water, and 80% of coal mine workers drink unclean water. The shortage of water resources in coal mining areas not only restricts the development, utilization and deep processing of coal, but also seriously affects the sustainable development of the coal industry. However, underground water is the largest waste water discharged by coal mines. If it is discharged directly without treatment, it will not only pollute the surrounding environment of the mining area, but also be a serious waste of water resources. According to reports, in recent years, the annual disch...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/12C02F103/10
Inventor 张传伟张鹏
Owner XIAN UNIV OF SCI & TECH
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