Coal mine dust removal system and dust removal method

A dust removal system and technology for coal mines, which are applied in drilling, mine safety comprehensive management projects, fully mechanized mining dust removal and tunnel construction, and mine mining fields, can solve the problems of inability to meet safety regulations, large water consumption, and low dust removal efficiency. Achieve the effect of saving transportation equipment, reducing water consumption, and long operating cycle

Active Publication Date: 2020-11-03
DALIAN EAST REFRIGERATION EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The device meets the requirements of wet dust removal by spraying water, but the water consumption is large, and the effect of dust removal is limited by the baffle effect.
And Chinese patent CN103925000A discloses a kind of negative pressure dedusting device for coal mines. A filtering device is set between the air inlet and the air outlet. Low, low dust removal rate
[0004] Most of the existing coal mining face dust removal and drilling dust removal adopts high-pressure water spray dust suppression or high-pressure water ejection dust removal, which has the problems of large water consumption and low dust removal efficiency, and cannot meet the standards required by safety regulations

Method used

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  • Coal mine dust removal system and dust removal method
  • Coal mine dust removal system and dust removal method
  • Coal mine dust removal system and dust removal method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Such as Figure 1 to Figure 8 As shown, the coal mine dust removal system according to the present embodiment 1 includes a collection device, a pneumatic suction device 2, a mist dust removal device 3, a cyclone separation device 4, a multiphase flow splitting device 5 and a dust collector 6 connected in sequence, The trapping device, the pneumatic suction device 2, the mist dedusting device 3, the cyclone separation device 4 and the multi-phase flow splitting device 5 are all tubular structures and between two adjacent devices It is an integrated structure through flange connection, the pneumatic suction device 2 is softly connected to the coal mine ventilation pipe through a telescopic hose, and the slag discharge port of the multiphase flow diversion device 5 is softly connected to the coal mine slag discharge system through a telescopic pipe , the mist dedusting device 3 is connected to the coal mine water supply system through a hose, and shut-off valves are respec...

Embodiment 2

[0057] According to the coal mine dedusting method of present embodiment 2, may further comprise the steps:

[0058] Step (1) Move the construction equipment carrying the coal mine dust removal system to the working area, and place the capture device in the designated dust removal area through the telescopic pipe;

[0059] Step (2) Open the nozzle 13 of the mist dust removal device 3 and the valve of the shut-off valve of the coal mine water supply system;

[0060] Step (3) Gradually open the coal mine ventilation pipe of the coal mine ventilation system and the cut-off valve of the ejector 1 in the pneumatic suction device 2, start the ejector 1, and the dust-laden gas enters the pneumatic suction device 2 through the suction chamber;

[0061] Step (4) The water curtain formed by the nozzle 13 of the mist dedusting device 3 absorbs, wets, and condenses the dust in the dusty gas, depressurizes at the outlet of the mist dedusting device 3 , and accelerates into the cyclone sepa...

Embodiment 3

[0069] The coal mine dedusting system of this embodiment 3 is applied to a certain coal mine working face for dedusting, and the conditions of the working face are:

[0070] Table 1 Working face environmental conditions of the present embodiment 3

[0071]

[0072] By calculating the air volume of the working face, the coal mine dust removal system composed of four pneumatic suction devices 2 is selected to deal with the working flour dust.

[0073]When in use, place the collector on the designated dust removal work surface through the telescopic pipe, and connect the coal mine dust removal system with the coal mine air supply and water supply system pipes; after opening the nozzle 13 of the mist dust removal device 3 and the coal mine supply water valve, gradually open The shut-off valve of the ejector 1 of the coal mine ventilation system and the pneumatic suction device 2, the high-pressure air of the coal mine ventilation is introduced into the pneumatic suction device ...

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Abstract

The invention discloses a coal mine dust removal system and dust removal method. The coal mine dust removal system comprises a trapping device, a pneumatic suction device, an entrainment dust removaldevice, a cyclone separation device, a multi-phase flow division device and a dust exhauster which are connected in sequence, wherein the trapping device, the pneumatic suction device, the entrainmentdust removal device, the cyclone separation device and the multi-phase flow division device are all of tubular structures, every two adjacent devices are integrally connected through a flange, and the pneumatic suction device is connected with a coal mine ventilation pipe through a telescopic hose; a slag discharge port of the multi-phase flow division device is connected with a coal mine slag discharge system through a telescopic pipeline, the entrainment dust removal device is connected with a coal mine water supply system through a hose, and stop valves are arranged on the telescopic hoseand a pipeline of the hose. The coal mine dust removal system is reasonable in unit combination design and small in size, and has the advantages of being small in investment, small in occupied area, low in energy consumption, high in dust removal rate and the like, and the coal mine dust removal method has the advantages of being short in process, low in operation cost and the like.

Description

technical field [0001] The invention relates to the technical field of mine safety comprehensive control engineering, relates to a coal mine underground dust prevention and dust reduction project, in particular to the field of mine excavation, drilling, fully mechanized dust removal and tunnel construction, specifically a coal mine dust removal system and Dust removal method. Background technique [0002] The existing coal mine dust removal methods are mainly divided into two categories: one is dry dust removal device, which is composed of bag filter, settling chamber, dust collection device and dust removal fan, etc. The negative pressure dust removal fan drives the bag filter to generate negative pressure. Suction dust-laden airflow under high pressure. The advantage is that the dust removal rate is high, and the disadvantage is that the bag is easy to block, the service life is not long, and the equipment is bulky, the installation and construction are cumbersome, and it...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F5/04E21F5/20E21C35/22B01D50/00
CPCE21F5/04E21F5/20E21C35/22E21C35/223B01D50/40Y02A50/2351
Inventor 袁君王金海蔡振义周立杰
Owner DALIAN EAST REFRIGERATION EQUIP
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