Treatment method and treatment device for solid waste in mine water under mine

A processing method and technology of processing devices, which are applied in mining devices, pump devices, safety devices, etc., can solve the problems of pump inner wall and blade damage, bearing wear, affecting the service life of water pumps, etc.

Active Publication Date: 2021-07-13
ANHUI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the wastewater in the underground water tank of the mine has been precipitated, it still contains a large amount of coal slime and other particles (such as fine sediment and wood chips, etc.). At the same time, when the pump is running, solid particles such as sediment and coal slime in the wastewater will bond to the inner wall of the pump due to centrifugal force. damage to leaves

Method used

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  • Treatment method and treatment device for solid waste in mine water under mine
  • Treatment method and treatment device for solid waste in mine water under mine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0077] According to the characteristics of mine water impurities, such as figure 1 Process route shown:

[0078] exist figure 1 middle,

[0079] 1. Internal inflow grille

[0080] The internal inflow grille, also known as the internal inflow grille decontamination machine, is used to intercept and remove small-diameter suspended dirt and particle impurities in the water supply and drainage systems. During operation, it can continuously and automatically remove solid suspended matter in the filtered water body. It can not only remove plastic bags, wood chips, and large particles of coal slime in the water body, but also effectively remove suspended matter such as fibrous matter and flocculent soft matter in the water body. It is an ideal fast pretreatment equipment.

[0081] 2. Pool

[0082] The pool has a built-in liquid level float switch. When the water volume is lower than the set liquid level, the cutting pump that feeds the self-cleaning filter will be stopped in tim...

Embodiment 1

[0094] The processing device in this embodiment is as figure 1 As shown in the figure, the solid waste in the mine water in the mine is successively passed into the internal flow grid decontamination machine, the pool, two cutting pumps connected in parallel (one for standby and one for use) and a self-cleaning filter to obtain purified water, and then the all The purified water is passed into the submersible electric pump and discharged to the surface.

[0095] Working parameters of inflow grille:

[0096] The water from the internal inflow grille enters the entrance of the pool, the filtration precision is 1mm, and the flow rate is 1200t / h. The motor of the slag discharge screw conveyor is 380V and the power is 3kW.

[0097] Working parameters of cutting centrifugal sewage pump:

[0098] The head of the cutting pump is 30m, and the flow rate corresponds to that of the submersible electric pump.

[0099] The cutting centrifugal sewage pump has a flow rate of 1200t / h, a li...

Embodiment 2

[0107] This embodiment is similar to Embodiment 1, the difference is: a self-cleaning filter is replaced by figure 2 Self-cleaning filter unit shown.

[0108] Such as figure 2 As shown, the self-cleaning filter unit includes three sets of filter sub-units connected in parallel, and each set of filter sub-units includes a first self-cleaning filter 201 and a second self-cleaning filter 202 . The filtration precision of the first self-cleaning filter 201 is 0.8mm; the filtration precision of the second self-cleaning filter is 0.2mm.

[0109] Processing effect:

[0110] In the treated water IV (ie purified water), the volume concentration of solid impurities in the water does not exceed 0.5%, and the turbidity does not exceed 3%. It can be seen that the self-cleaning filter is connected in series and parallel, which can better improve the purification effect and play a better role in protecting the submersible pump.

[0111] Of course, the parallel number of filtering subunit...

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Abstract

The invention discloses a treatment method and treatment device for solid waste in mine wate under a mine. The treatment method comprises the step of treating the solid wastes in the mine water under the mine by adopting a method at least comprising the following steps in a space environment under the mine: s100, the mine water from the underground water sump in the mine is introduced into an inner inflow grille decontamination machine to be treated I, and water I is obtained; s200, the water I is introduced into a water pool to be treated II, and water II is obtained; s300, the water II is introduced into a cutting unit to be treated III, and water III is obtained; and s400, the water III is introduced into a self-cleaning filtering unit to be treated IV, and water IV is obtained; and the water IV is introduced into a submersible electric pump. According to the method, the solid waste in the underground water can be treated in the narrow space under the mine, the treated water is sucked into the submersible electric pump and then discharged to the ground, it is guaranteed that the water entering the pump body can meet the water quality requirement, the damage degree to a bearing system, blades and the interior of the pump body in the submersible electric pump is reduced, and the service life of the submersible electric pump is prolonged.

Description

technical field [0001] The application relates to a treatment method and a treatment device for solid waste in underground mine water, belonging to the technical field of wastewater treatment. Background technique [0002] Underground mine water is mainly the underground water gushed out during the coal mining process and the wastewater generated during the production process, which contains a large amount of solid waste such as coal slime. [0003] The traditional method is to pass the mine water through the underground water tank for sedimentation treatment, and then be sucked into the submersible electric pump and discharged to the ground. [0004] Although the wastewater in the underground water tank of the mine has been precipitated, it still contains a large amount of coal slime and other particles (such as fine sediment and wood chips, etc.). At the same time, when the pump is running, solid particles such as sediment and coal slime in the wastewater will bond to the...

Claims

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Application Information

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IPC IPC(8): B01D36/04B01D35/16E21F16/00E21F17/00F04D13/08F04D13/12
CPCB01D36/04B01D35/16E21F16/00E21F17/00F04D13/12F04D13/08
Inventor黄绍服
OwnerANHUI UNIV OF SCI & TECH