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Coal mine water underground purification treatment device and method

A technology for purification treatment and mines, which is applied in chemical instruments and methods, multi-stage water/sewage treatment, water/sludge/sewage treatment, etc. It can solve the problem that the coliform group index of effluent water quality cannot meet the water quality standards for underground fire protection and sprinkling in coal mines. , short filtration period, troublesome operation and management, etc., to achieve the effect of eliminating disinfection equipment, simple method and simple equipment

Inactive Publication Date: 2012-02-01
CHINA COAL TECH & ENG GRP HANGZHOU ENVIRONMENTAL PROTECTION INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If sand filtration or microfiltration is used directly after flocculation, the filtration period will be very short, and backwashing will be required soon, and most of the filtered water will be used for backwashing, which is very inefficient and basically useless in engineering practice. Operability
The treatment system announced by the patent "Underground Mine Water Treatment System" (ZL200610114466.X) has complex processes, many power equipment, troublesome operation and management, and the coliform index of the effluent water quality cannot meet the coal mine underground fire protection and sprinkler water quality standards

Method used

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  • Coal mine water underground purification treatment device and method
  • Coal mine water underground purification treatment device and method
  • Coal mine water underground purification treatment device and method

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Effect test

Embodiment 1

[0035] This embodiment discloses an underground coal mine water purification treatment device, which includes a lifting unit (lifting water pump), a coagulation sedimentation unit and an ultrafiltration unit connected in sequence through pipelines, and a chemical dosing unit is also provided at the water inlet of the lifting unit unit. The lifting device is used to lift and pressurize the coal mine water from the water collection well to the pressure required by the coal mine underground water purification treatment device. The coagulation and sedimentation unit mainly removes suspended solids and colloidal substances in coal mine water; the ultrafiltration unit mainly further removes suspended solids, colloidal substances and coliform bacteria in coal mine water, and the chemical dosing unit is used for adding coagulants and coagulation aids agent. The coal mine mine water underground purification treatment device can process 50 tons of well water per hour.

[0036] Adopt p...

Embodiment 2

[0040] figure 1 It is a structural schematic diagram of the coal mine mine water underground treatment device of the present invention.

[0041] The coal mine mine water underground purification treatment device disclosed in this embodiment is as follows: figure 1 As shown, it includes: coal mine mine water underground purification treatment device, including a raw water pool 1, a lifting unit 2, a coagulation sedimentation unit, an ultrafiltration unit 6 and a water storage unit 7 connected in sequence through pipelines, and the raw water pool 1 and the lifting unit The pipeline between 2 is also provided with coagulant PAC dosing pipe 9. A coagulant aid PAM dosing pipe 10 is also arranged on the pipeline between the lifting unit 2 and the coagulation and sedimentation power supply. The lifting unit 2 adopts a lifting pump, which is used to lift and pressurize the coal mine water from the water tank to the pressure required by the coal mine underground water purification tr...

Embodiment 3

[0055] figure 2 It is a flow chart of the coal mine mine water underground treatment method of the present invention.

[0056] This embodiment discloses a coal mine mine water underground purification treatment method, such as figure 2 as shown,

[0057] After the coal mine water is lifted, coagulant and coagulant are added therein in turn, wherein; the coagulant is polyaluminum chloride (PAC), and its addition amount is 45mg / L; ), the addition amount is 0.20mg / L; the flocculation reaction takes 13 minutes, and the inclined plate sedimentation surface load is 5m 3 / (m 2 h), removing suspended solids and colloidal substances in the mine water; performing ultrafiltration on the supernatant to obtain purified water, further removing suspended solids, colloidal substances and coliform bacteria in the mine water; storing the purified water in the water storage unit, Purified water can be used as water for coal mine underground production. The indicators before and after trea...

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Abstract

The invention discloses a coal mine water underground purification treatment device and method. The coal mine water underground purification treatment device comprises a lifting unit, a coagulating sedimentation unit and an ultrafiltration unit which are connected in turn through pipelines, wherein a medicament adding unit is arranged before the coagulating sedimentation unit. The device has simple and compact structure; the treatment method is scientific and reasonable, and multiple defects of the prior art are overcome, the equipment is simple and is convenient to use and maintain; a sterilizing device is not required, power devices are fewer, the device has small floor area and is suitable for the narrow coal mine underground environment; and the device has the advantages of good purification effect and high effluent quality.

Description

technical field [0001] The invention relates to waste water purification treatment technology, in particular to an underground coal mine water purification treatment device and method. Background technique [0002] Mine water in coal mines is formed by the collection of underground water gushing, surface seepage water, and drainage during mining and production, such as dust prevention, equipment cooling, and grouting. Because mine water is polluted by rotten pit wood and feces during the collection process , so that in addition to coal powder-based suspended solids, the mine water also contains a certain amount of organic matter and coliform bacteria. It is coal mine production wastewater with typical industry characteristics. After mine water is purified, it can generally be used as water for underground production. It is one of the most effective ways to solve the problem of water shortage in mining areas, and it is in line with the national environmental protection, energ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/44C02F1/52C02F9/04
Inventor 周如禄郭中权龚梦锡
Owner CHINA COAL TECH & ENG GRP HANGZHOU ENVIRONMENTAL PROTECTION INST
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