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Efficient pretreatment system for mine water

A mine water and pretreatment technology, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, flocculation/sedimentation water/sewage treatment, etc. Problems such as plate sedimentation tank collapse

Inactive Publication Date: 2012-08-15
CHINA UNIV OF MINING & TECH (BEIJING)
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Due to the high content of suspended solids in the mine water, it often leads to the blockage of the adjustment tank, the collapse of the inclined plate sedimentation tank by the suspended solids, etc., resulting in the paralysis of the mine water treatment system

Method used

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specific Embodiment

[0027] Such as figure 1 As shown, the system includes a sump 1, a lift pump 2, a sludge thickening tank 3, an advection sedimentation tank 4, a decanter 5 installed at the end of the advection sedimentation tank and an automatic control system (not shown in the figure).

[0028] Raw mine water is lifted from the underground to the collection pool 1, and after being lifted by the lift pump 2, it enters the sludge thickening tank 3 for concentration pretreatment, and then enters the advection sedimentation tank 4 for further treatment, and the decanting device 5 at the end of the advection sedimentation tank 4 Skim off the supernatant water in the pool to realize the separation of supernatant water and suspended matter. The whole operation process is controlled by the automatic control part of the system according to the liquid level change in the regulating tank.

[0029] The sludge thickening tank 3 adopts a radial flow sludge thickening tank, which pretreats the raw water by...

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Abstract

The invention discloses an efficient pretreatment system for mine water, comprising a water collecting tank, a lift pump, a sewage thickening tank and a horizontal sedimentation tank which are sequentially connected, wherein a decanting device is arranged on a water outlet on the tail end of the horizontal sedimentation tank; and sewage outlets are respectively arranged on the bottom parts of the sewage thickening tank and the horizontal sedimentation tank. Aiming at the characteristic of high suspended matter content in the mine water, the sewage thickening tank used for a sewage treatment stage and the decanting device used for an aerobic biochemical treatment stage are creatively applied to a pretreatment stage of the mine water, so that the efficient pretreatment system for the mine water is formed and can be used for treatment of the mine water conveniently and efficiently, the treatment load of follow-up mine water is greatly reduced, and the construction cost of a mine water treatment concrete structure and the operation cost of mine water treatment are saved.

Description

technical field [0001] The invention relates to a water treatment technology, in particular to a high-efficiency pretreatment system for mine water. Background technique [0002] Mine water is the groundwater near the coal seams and mine roadways mined in the mining area, and some also contain a small amount of surface infiltration water, whose composition is affected by geological structure, coal seam associated minerals, coal powder in coal mining, and underground production. , with significant industry characteristics. The discharge of mine water is large, which is a considerable water resource, but the utilization rate of mine water is only about 26%. The direct discharge of a large amount of mine water will not only cause environmental pollution, but also a great waste of water resources. Research on mine water treatment and reuse technologies can not only reduce the waste of water resources, avoid environmental pollution, but also alleviate The shortage of water reso...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/02C02F1/52C02F103/06
Inventor 张春晖何绪文王荣博张雯雯黄涛门坤阔
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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