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Underground coal mine ventilation and dust removal safety system

A technology of underground ventilation and safety system, which is applied in mine/tunnel ventilation, safety devices, and dust prevention. Dust-free, easy to replace and maintain, and strengthen the effect of dust removal

Inactive Publication Date: 2015-07-01
内蒙古煤矿设计研究院有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, most underground mine ventilation devices use mechanical forced ventilation equipment. The disadvantage is that mechanical ventilation equipment is difficult to deal with harmful gas, gas and dust in the roadway.
However, the processing air volume of wet dust removal is small, the atomization is not good, and the dust removal efficiency is not high
In addition, the water mist affects the line of sight, and the discharged sewage affects the construction and slag removal transportation
The electrostatic precipitator has ultra-high voltage static electricity, and it is dangerous to use in a humid tunnel construction environment, and it occupies a relatively large area.
Pulse-jet bag-type dust removal equipment generally uses cloth-bag filter bags as the filter material. Fog and dust are easy to accumulate on the surface of the filter bag and are not easy to peel off, causing the air permeability of the filter material to decrease. Cleaning is still not thorough enough
In addition, it is difficult to deal with the deflagration problem of electrostatic dust in the bag filter material in the environment containing electrostatic dust. For this reason, ordinary antistatic filter components are used for grounding in some places, but the entire surface of the filter cartridge is covered with conductive carbon black slurry, resulting in extreme dust particles. It is easy to adhere to the conductive carbon black slurry coating, which makes the filter blocked in a short time. The service life of the filter material is short, the air permeability is small, the pressure drop is large, and the filtering effect is average.
In addition, the moisture treatment contained in the dust and the pretreatment system for large particle dust were rarely considered in the design of industrial dust removal equipment in the past, which has great disadvantages under the action of large negative pressure

Method used

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  • Underground coal mine ventilation and dust removal safety system
  • Underground coal mine ventilation and dust removal safety system
  • Underground coal mine ventilation and dust removal safety system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] figure 1 It is an underground ventilation and dust removal safety system for coal mines according to the present invention. The system includes two bellows, two parallel bellows, the first bellows (1) and the second bellows (2), which are respectively arranged inside the mine. On both sides, the bellows are coated with self-luminous paint, and the two bellows extend from the outside of the mine to the bottom of the well;

[0035] The first bellows is connected with the blast device (3) outside the mine, and the blast device blows the purified air into the first bellows, and several tees (4) are arranged at intervals on the first bellows. ), the branch pipe of the three-way pipe perpendicular to the bellows is connected with an exhaust device (5), which blows the air in the bellows into the mine;

[0036] The second corrugated pipe is arranged in parallel with the first corrugated pipe, and several tees (4) are arranged at the place corresponding to the first corrugated...

Embodiment 2

[0039] Such as figure 2 As shown, it is the integrated filter and dust removal device of the present invention in the daily working state, the integrated filter and dust removal device for coal mine safety of the present invention, and the integrated filter and dust removal device includes a fan, a housing, an adsorption filter part, a water vapor dust removal part, a bag dust removal part and dust Entrance;

[0040] After the dust inlet, the water vapor dust removal parts, bag dust removal parts, fan and adsorption filter parts are arranged in sequence, and the housing is located outside the entire integrated filter dust removal device;

[0041] The water vapor dedusting part is used for preliminary water vapor dedusting of the dust collected from the dust inlet into the integrated filter dedusting device; the bag dust removal part is used for bag dedusting of the dust particles that still exist in the gas after being treated by the water vapor dedusting part ;

[0042] Th...

Embodiment 3

[0049] Such as image 3 The filter membrane of the shown adsorption filter part is a layered structure, which is composed of an outer layer, an inner layer and an intermediate layer respectively, and the intermediate layer includes a filter layer; the filter layer includes the first honeycomb photocatalyst filter screen layer, the first solid-carried nano-titanium dioxide filter layer positioned at one side of the honeycomb photocatalyst filter layer, the second honeycomb photocatalyst filter layer positioned at the other side of the first solid-carried nano-titanium dioxide filter layer, and the The second solid-loaded nano-titanium dioxide filter layer on the other side of the second honeycomb photocatalyst filter layer, the aperture of the first honeycomb photocatalyst filter layer is 0.98mm, and the thickness is 0.88mm; the second honeycomb photocatalyst The aperture of the filter screen layer is 0.79mm, and the thickness is 0.89mm; the volume content of activated carbon i...

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PUM

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Abstract

The invention discloses an underground coal mine ventilation and dust removal safety system, which comprises two corrugated pipes and is characterized in that the two corrugated pipes are parallel and comprise a first corrugated pipe (1) and a second corrugated pipe (2) which are arranged at the two sides inside a mine respectively, and the two corrugated pipes are coated with self-illumination paint and extend to the bottom of the mine from the outer part of the mine respectively. The invention also discloses an integrated filtering and dust removal device. The ventilation and dust removal safety system can be used for removing dust particles in underground mine gas and timely ventilating and exchanging the underground mine gas, so that the safety of the mine is ensured, the working gaseous environment of coal mine workers is optimized, and the pollution of gas exhausted from the mine to the environment is avoided.

Description

technical field [0001] The invention relates to the field of coal mine safety, in particular to an underground ventilation and dust removal safety system for coal mines. Background technique [0002] At present, most underground mine ventilation devices use mechanical forced ventilation equipment. The disadvantage is that mechanical ventilation equipment is difficult to deal with harmful gas, gas and dust in the roadway. The reason is that it is blown out by the blower, the dust is large, and the harmful gas travels through the roadway. When the blower equipment is running, a large amount of heat, magnetic field and vibration are generated, forming a thermal barrier, so that the air outside the cave cannot enter the roadway smoothly, and the harmful gas in the roadway The dust and dust cannot be fully discharged out of the cave in time, which will affect the health of the workers, reduce the physical fitness of the miners, and reduce the production efficiency of the mine, po...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21F1/04E21F1/08E21F5/00E21F5/02E21F11/00
Inventor 邢桂生李茜王文姣
Owner 内蒙古煤矿设计研究院有限责任公司
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