CN201738947U - Excavating working face high-concentration gas drainage device - Google Patents
Excavating working face high-concentration gas drainage device Download PDFInfo
- Publication number
- CN201738947U CN201738947U CN2010202471247U CN201020247124U CN201738947U CN 201738947 U CN201738947 U CN 201738947U CN 2010202471247 U CN2010202471247 U CN 2010202471247U CN 201020247124 U CN201020247124 U CN 201020247124U CN 201738947 U CN201738947 U CN 201738947U
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- pipe
- concentration gas
- working face
- valve
- drainage device
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Abstract
The utility model discloses an excavating working face high-concentration gas drainage device, comprising a three-way pipe, a valve, a vertical pipe and a drainage pipe, wherein the three-way pipe is in serial connection with a main drainage pipeline and the vertical pipe is connected with an upper part of the three-way pipe via the valve. An upper end of the vertical pipe is horizontally connected with the drainage pipe, which is provided at the pipe wall with a plurality of ventilation holes in a uniform manner and at the internal with a metal thin gauze. The high-concentration gas in a relatively long tunnel can be eliminated rapidly, thereby reducing a great threat to safe production. The excavating working face high-concentration gas drainage device has the characteristics of simple structure, safety, reliability and convenient utilization etc.
Description
Technical field:
The utility model belongs to coal and the outstanding driving face gas drainage technique field of gas.
Background technology:
A series of outburst prevention measures all will be taked in the colliery when carrying out the outstanding tunnelling of coal and gas, wherein waterpower slotting measure is a main mode implementing speedy drivage.This measure is to arrange giant at digging laneway, utilizes water under high pressure that work plane the place ahead coal body is washed away, and forms the hole of certain depth and sectional area, discharges thereby reach coal mass relief gas, eliminates the outstanding purpose of coal and gas.Be accompanied by the formation in hole, occur a large amount of high concentration gas sometimes and gush out, a part of gas with the coal grain bulk storage of going out to the tunnel distinguished and admirable in, take away after the fresh distinguished and admirable dilution that is entered by air duct, major part then is collected in the tunnel.Merely rely on draft type to solve the gas problem, not only can't reduce gas density fast, and be difficult to eliminate the existence of high concentration gas in long tunnel, thereby safety in production is produced significant threat, also influenced tunnelling speed.
The utility model content:
It is a kind of simple in structure, safe and reliable that the purpose of this utility model provides, and can get rid of the driving face high concentration gas extraction device of high concentration gas in the tunnel fast.
To achieve these goals, the utility model comprises: tee piece, valve, standpipe, releasing pipe, tee piece is concatenated into the extraction main line, standpipe is connected with tee piece top by valve, the standpipe upper end has laterally connected a releasing pipe, on the releasing pipe tube wall, evenly have some air-vents, metal spun yarn net is arranged at the releasing pipe inner filling.
Like this, before the execution waterpower slotting measure, check the extraction device, open valve, releasing pipe is communicated with the extraction main line.Be accompanied by the formation in hole after implementing the waterpower slotting, a large amount of high concentration gas can occur and gush out, take away after the fresh distinguished and admirable dilution that a part of gas is entered by air duct, ground is taken and be discharged to a large amount of gas then by releasing pipe away through the extraction main line.Can eliminate the existence of high concentration gas in long tunnel apace, thereby reduce safety in production is produced significant threat, after waterpower slotting measure is carried out and is finished, the staff enters the valve of closing in the tunnel on the extraction device and gets final product, do not influence the work of extraction main line, can carry out tunneling construction, improve tunnelling speed.Have simple in structure, safe and reliable, can get rid of characteristics such as high concentration gas in the tunnel fast.
Description of drawings:
Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 1 is the structural representation that the utility model is arranged at drift section.
Fig. 2 is the utility model moves towards layout in the tunnel a structural representation.
The specific embodiment:
As seen from Figure 1, Figure 2, the utility model comprises: tee piece 2, valve 3, standpipe 4, releasing pipe 6.5 bottoms, one side is equipped with extraction main line 1 in the tunnel, and 5 tops, one side is equipped with air duct 7 in the tunnel, and air duct is used to supply with fresh distinguished and admirable dilution gas.Tee piece 2 is concatenated on the extraction main line 1, and standpipe 4 is connected with tee piece 2 tops by valve 3.Standpipe 4 upper ends have laterally connected a releasing pipe 6, and releasing pipe 6 is with the back keeping parallelism and be fixed on back.On releasing pipe 6 tube walls, evenly have some air-vents, at releasing pipe 6 inner fillings metal spun yarn net is arranged, can avoid coal dust to suck the extraction main line in a large number influences the extraction system, regularly carry out the coal dust cleaning to releasing pipe 6 interior metal spun yarn nets, to guarantee the extraction effect.During actual installation,, arrange in the anti-reverse wind apparatus of distance 8 body of wall appropriate positions according to the actual conditions of digging laneway.
Claims (1)
1. driving face high concentration gas extraction device, comprise: tee piece (2), valve (3), standpipe (4), releasing pipe (6), tee piece (2) is concatenated into extraction main line (1), it is characterized in that standpipe (4) is connected with tee piece (2) top by valve (3), standpipe (4) upper end has laterally connected a releasing pipe (6), on releasing pipe (6) tube wall, evenly have some air-vents, metal spun yarn net is arranged at the releasing pipe inner filling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202471247U CN201738947U (en) | 2010-07-05 | 2010-07-05 | Excavating working face high-concentration gas drainage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202471247U CN201738947U (en) | 2010-07-05 | 2010-07-05 | Excavating working face high-concentration gas drainage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201738947U true CN201738947U (en) | 2011-02-09 |
Family
ID=43554225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202471247U Expired - Fee Related CN201738947U (en) | 2010-07-05 | 2010-07-05 | Excavating working face high-concentration gas drainage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201738947U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334775A (en) * | 2013-05-23 | 2013-10-02 | 平安煤矿瓦斯治理国家工程研究中心有限责任公司 | Gas extraction device for upper corner of coal mining working face and hydraulic bracket |
| CN103899350A (en) * | 2014-04-28 | 2014-07-02 | 河南理工大学 | Fully mechanized caving face supporting top coal gas extraction system |
| CN105697048A (en) * | 2016-03-03 | 2016-06-22 | 华北科技学院 | Method for controlling toxic and harmful substances in blasting driving channel to be prevented from exceeding standard |
-
2010
- 2010-07-05 CN CN2010202471247U patent/CN201738947U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334775A (en) * | 2013-05-23 | 2013-10-02 | 平安煤矿瓦斯治理国家工程研究中心有限责任公司 | Gas extraction device for upper corner of coal mining working face and hydraulic bracket |
| CN103899350A (en) * | 2014-04-28 | 2014-07-02 | 河南理工大学 | Fully mechanized caving face supporting top coal gas extraction system |
| CN103899350B (en) * | 2014-04-28 | 2016-03-16 | 河南理工大学 | Fully mechanized coal face frame carries top coal gas drainage system |
| CN105697048A (en) * | 2016-03-03 | 2016-06-22 | 华北科技学院 | Method for controlling toxic and harmful substances in blasting driving channel to be prevented from exceeding standard |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110209 Termination date: 20120705 |