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A kind of coal mine mine water underground purification treatment method

A purification treatment and mine water technology, applied in mining wastewater treatment, flocculation/sedimentation water/sewage treatment, separation methods, etc., can solve the problems of no oil removal measures, high one-time investment costs, lengthy process, etc.

Active Publication Date: 2017-11-14
BEIJING SINORICHEN ENVIRONMENTAL PROTECTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this treatment system is suitable for the underground treatment of coal mine water, it is only suitable for the treatment of high suspended solids in coal mines and iron-manganese-containing mine water. Mine water with high material content still has the disadvantage of no oil removal measures, and the system also has disadvantages such as lengthy process and high one-time investment costs

Method used

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  • A kind of coal mine mine water underground purification treatment method
  • A kind of coal mine mine water underground purification treatment method
  • A kind of coal mine mine water underground purification treatment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0148] Adopt the purification equipment of the present invention to process the underground mine water of a mine in Shenhua Shendong, China, and the performance index parameters of the mine water are as follows:

[0149] Water volume: 10t / d (10 tons / day)

[0150] Suspended solids (SS): 65.8-316.5mg / L

[0151] Oil content (petroleum): 5.5-14.2mg / L

[0152] 1. Water intake and distribution

[0153] Downhole mine water flows into the water inlet area 13 of the cuboid pool of the purifying equipment of the present invention through the water inlet pipe 2, flows into the water distribution area 34 of the desilting-oil removal area 14 from the bottom of the pool, wherein: the flow velocity of the water flow is 1.0-1.5m / s, the volume of the pool is 25m3 ; The depth of the pool is 250cm; The volume of the inlet area is 2.5m 3 ;The volume of the desilting-deoiling zone is 20m 3 The height of the water distribution area is 50cm; the height of the top of the second dividing plate fro...

Embodiment 2

[0166] In step 1, except that the water velocity is 0.8-1.0m / s; the depth of the pool is 180cm; the height of the water distribution area is 30cm; the height of the top of the second partition from the upper edge of the pool is 30cm; The distance of the top of dividing plate is outside 30cm, and all the other are identical with embodiment 1;

[0167] In step 2, except that the height of the inclined plate sedimentation packing layer is 30cm, the height of the bottom of the inclined plate sedimentation packing layer from the bottom of the pool is 60cm, and the water velocity is 0.8-1.0m / s, all the other are the same as in Example 1;

[0168] In step 3, except that the height of the buffer zone is 30cm, the water velocity is 0.8-1.0m / s, the height of the deoiling filler layer is 30cm, and the distance between two adjacent layers of deoiling filler sublayers is 7cm, it is a prism type The side length of the lower bottom surface of the oil removal unit is 5cm, and the side length ...

Embodiment 3

[0173] In step 1, except that the water velocity is 1.0-1.3m / s; the depth of the pool is 250cm, and the height of the water distribution area is 40cm; the height of the top of the second partition from the upper edge of the pool is 10cm; The distance of the top of plate is 30cm; Except, all the other are identical with embodiment 1;

[0174] In step 2, except that the height of the inclined plate sedimentation packing layer is 60cm, and the height of the bottom of the inclined plate sedimentation packing layer from the bottom of the pool is 50cm, all the other are the same as in Example 1;

[0175] In step 3, except that the height of the buffer zone is 50cm, the water velocity is 1.0-1.3m / s, the height of the deoiling filler layer is 60cm, and the distance between two adjacent layers of deoiling filler sublayers is 3cm, the positive truss type The side length of the lower bottom surface of the oil removal unit is 8cm, and the side length of the upper bottom surface is 3cm; th...

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Abstract

The invention discloses a coal mine water underground purification treatment method which comprises the steps of carrying out precipitation treatment on coal mine water underground for solid-liquid separation and carrying out oil-water separation treatment so as to remove suspended matters and oil dirt in the coal mine water. The mine water enters a water pond to reach the bottom of the water pond through a water inlet pipe and then is discharged uniformly from a water distribution area, after solid-liquid separation and oil-water separation are carried out by a silt removal-oil removal device, suspended matters precipitate and then enter a silt discharge device, oil dirt is discharged through an oil collecting pipe and purified mine water is discharged through a water outlet pipe. According to the method, used equipment is simple in structure, low in cost and arranged underground, so that the defects of larger occupied area, environment pollution and the like of ground treatment are overcome; in addition, by adopting the method provided by the invention, the technical problem that an oil removal measure does not exist in the conventional mine water purification treatment is solved, the removal efficiency of suspended matters and oil dirt in the mine water is high, the oil removal effect is obvious and the purified water reaches reusing or drinking standards.

Description

technical field [0001] The invention relates to a water treatment technology, in particular to an underground purification treatment device for mine water, and belongs to the technical field of environmental protection. Background technique [0002] Mine water wastewater in coal mines is mainly caused by roadway exposure and goaf subsidence affecting groundwater sources, and its sources are mainly atmospheric precipitation, surface water, fault water, aquifer water, and goaf water. Mine water in coal mines produces oily mine wastewater due to the erosion of coal seams and the impact of hydraulic oil and lubricating oil leakage from underground coal mining equipment. Therefore, the water quality characteristics of mine water are: high suspended matter content, high turbidity; small suspended matter particle size, low density, poor settling performance; poor coagulation effect, it is difficult to form alum flowers during the coagulation process, generally need to add mixing C...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/40C02F1/52C02F103/10
Inventor 吴盟盟陆晶张鑫安慰王晓婵李磊肖研婷
Owner BEIJING SINORICHEN ENVIRONMENTAL PROTECTION
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