CN204060771U - The controlled mash gas extraction device of actual mining face goaf pipe laying classification - Google Patents
The controlled mash gas extraction device of actual mining face goaf pipe laying classification Download PDFInfo
- Publication number
- CN204060771U CN204060771U CN201420425222.3U CN201420425222U CN204060771U CN 204060771 U CN204060771 U CN 204060771U CN 201420425222 U CN201420425222 U CN 201420425222U CN 204060771 U CN204060771 U CN 204060771U
- Authority
- CN
- China
- Prior art keywords
- goaf
- extraction
- pipe laying
- level
- extraction system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to the controlled mash gas extraction device of actual mining face goaf pipe laying classification, and comprising one-level goaf extraction system and secondary can empty extraction system composition.Described one-level goaf extraction system is used for main for pipe laying releasing pipe extending to goaf, have one-level extraction mouth in certain spacing, and connect extraction flexible pipe, flexible pipe insertion arranges gas and collects storehouse, protection extraction mouth is not blocked by the bastard coal fallen, affect gas drainage results, owing to adopting Ullage divider wall 80 ~ 100m, place's gas extraction concentration is high, effective, when new pipe laying is less than herein, opens one-level goaf extraction system and carry out extraction, negative pressure disappearance can be reduced like this; Described secondary goaf extraction system is when adopting Ullage divider wall 40m, slowly twitch envelope wall piston tube with stay cord, the upper floral tube air inlet port of secondary inlet visitor is simultaneously pulled to be opened, along with adopting, Ullage divider wall distance is far away, floral tube air inlet port is opened, and adopts Ullage divider wall 80 ~ 100m place and all opens, and strengthens gas drainage under suction, realize the controlled object that draws out methane of secondary like this, reach efficient extraction.
Description
Technical field
The utility model belongs to coal mining technical field, be specifically related to the controlled mash gas extraction device of actual mining face goaf pipe laying classification, can realize carrying out controlled extraction according to goaf apart from divider wall different distance especially, search out optimum extraction point, improve stope gas pumping efficiency, for Safety of Coal Mine Production provides guarantee.
Background technology
Mine gas seriously threatens safety in production, and govern increasing substantially of coal production.Stope Gas Accumulation in Upper-Corner by Pulsed administers in stope Gas Disaster often to occur and reluctant problem.Gas at upper corner is mainly derived from goaf, and pipe laying goaf gas drainage administers gas at upper corner to transfinite effective ways.At present, the method is before stope upper corner prop drawing makes top board collapse to emit, by in extraction air inlet pipe first pre-buried goaf, along with stope constantly advances, air inlet pipe will be more and more far away apart from divider wall, due to goaf, personnel are inaccessiable, thus air inlet pipe to adopt air be unlimited being embedded in; Owing to adopting Ullage divider wall 80 ~ 100m, place's gas extraction concentration is high, effective, 80m before divider wall, gas density is lower, pipe laying air inlet pipe is also all opened, cause suction large quantity of air, extraction amount reduces greatly, directly has influence on stope return and the rising of gas at upper corner concentration, be easy to gas exceeding limit occurs, restriction Safety of Coal Mine Production.
Utility model content
Technical problem to be solved in the utility model is for the deficiency in background technology, provides the pipe laying classification of actual mining face goaf
Controlled mash gas extraction device.
In order to solve the problem by the following technical solutions:
The controlled mash gas extraction device of actual mining face goaf of the present utility model pipe laying classification, comprising one-level goaf extraction system and secondary can empty extraction system; Described one-level goaf extraction system is used for main for pipe laying releasing pipe to extend to goaf; Described secondary goaf extraction system comprises stay cord, packed-piston head, envelope wall piston tube, floral tube and secondary inlet arm, the main releasing pipe of pipe laying is provided with secondary inlet arm, secondary inlet arm is connected with floral tube, floral tube is provided with air inlet port, envelope wall piston tube is arranged with in floral tube, one end of envelope wall piston tube is provided with packed-piston head, and packed-piston head is connected with stay cord.
Described one-level goaf extraction system and secondary can empty extraction system interval be arranged.
Described one-level goaf extraction system comprises the one-level air induction hose being arranged on the main releasing pipe of pipe laying; one-level air induction hose inserts and arranges gas and collect storehouse, covers its extraction mouth, and gas collects outside storehouse and is arranged with protective screening; in protective screening, this has support frame, and protection extraction mouth is not blocked by the bastard coal fallen.
Conveniently stay cord, the other end of described stay cord is provided with draw ring.
The controlled mash gas extraction device of actual mining face goaf of the present utility model pipe laying classification, mainly one-level goaf extraction system and secondary can empty extraction system compositions.Described one-level goaf extraction system is used for main for pipe laying releasing pipe extending to goaf, have one-level extraction mouth in certain spacing, and connect extraction flexible pipe, flexible pipe insertion arranges gas and collects storehouse, protection extraction mouth is not blocked by the bastard coal fallen, affect gas drainage results, owing to adopting Ullage divider wall 80 ~ 100m, place's gas extraction concentration is high, effective, when new pipe laying is less than herein, opens one-level goaf extraction system and carry out extraction, negative pressure disappearance can be reduced like this; Described secondary goaf extraction system is when adopting Ullage divider wall 40m, slowly twitch envelope wall piston tube with stay cord, the upper floral tube air inlet port of secondary inlet visitor is simultaneously pulled to be opened, along with adopting, Ullage divider wall distance is far away, floral tube air inlet port is opened, and adopts Ullage divider wall 80 ~ 100m place and all opens, and strengthens gas drainage under suction, realize the controlled object that draws out methane of secondary like this, reach efficient extraction.Adopt the utility model device, can realize carrying out controlled extraction according to goaf apart from divider wall different distance, search out optimum extraction point, improve extraction concentration, give full play to suction function, do not need to hand over just for pipe laying, save material, structure is simple, easy for installation, improve stope gas pumping efficiency, for Safety of Coal Mine Production provides guarantee.
Described one-level goaf extraction system is mainly responsible for certain spacing from pipe laying and is had one-level extraction mouth, and connect one-level air induction hose, flexible pipe insertion arranges gas and collects storehouse, cover its extraction mouth, collect storehouse should increase to some extent along with along with extraction mouth enters two-phase, adopt triangle skeleton cross section, gas collects the upper protective screening of storehouse cover, protection extraction mouth is not blocked by the bastard coal fallen, affect gas drainage results, make to have around extraction mouth simultaneously a space just gas collect, favourable raising gas pumping effect, continue to employ the free pathway of Gas Flow, it is short that gas collects storehouse, solid, stable, very large compressive load can be born and do not damage.Owing to adopting Ullage divider wall 80 ~ 100m, place's gas extraction concentration is high, effective, and when adopting Ullage divider wall and being less than 40m, one-level extraction system plays a role, and can reduce negative pressure like this, strengthens gas drainage results.
Described secondary goaf extraction system be along with adopt Ullage divider wall be greater than 40m time, slowly twitch envelope wall piston tube with stay cord, the upper floral tube air inlet port of secondary inlet visitor is simultaneously pulled to be opened, along with adopting, Ullage divider wall distance is far away, floral tube air inlet port is opened, and adopts Ullage divider wall 80 ~ 100m place and all opens, and strengthens gas drainage under suction, realize the controlled object that draws out methane of secondary like this, reach efficient extraction.
Adopt the controlled mash gas extraction device of the utility model actual mining face goaf pipe laying classification, easy processing and implementation, can realize carrying out controlled extraction according to goaf apart from divider wall different distance especially, search out optimum extraction point, make stope upper corner pipe laying mash gas extraction be in high concentration state always, goaf high-concentration and low-concentration gas can carry out extraction, improve stope gas pumping efficiency, stope return and the gas at upper corner accident that transfinites is avoided to occur, ensure that drainage system runs well, thus improve the safety of production operation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is using state figure of the present utility model;
Fig. 3 be in the utility model secondary can empty extraction system sealing without extraction figure;
Fig. 4 is that in the utility model, secondary can empty extraction system regulation extraction figure.
Number in the figure: 1 extraction supervisor, 2 draw rings, 3 divider walls, 4 main pipe layings, 5 stay cords, 6 packed-piston heads, 7 envelope wall piston tube, 8 floral tubes, 8-1, floral tube air inlet port, 9 secondary inlet arms, 10 one-level air induction hoses, 11 protective screenings, 12 gas collect storehouse, 13 skeletons, 14 goafs, 15 hydraulic supports, 16 haulage gates, 17 work planes, 18 air return way.
Detailed description of the invention
The controlled mash gas extraction device of actual mining face goaf of the present utility model pipe laying classification, as shown in Figure 2, comprising one-level goaf extraction system and secondary can empty extraction system; Described one-level goaf extraction system is used for main for pipe laying releasing pipe 4 to extend to goaf 14; Described one-level goaf extraction system comprises the one-level air induction hose 10 being arranged on the main releasing pipe 4 of pipe laying; one-level air induction hose 10 insertion arranges gas and collects storehouse 12; cover its extraction mouth; gas collects outside storehouse 12 and is arranged with protective screening 11; in protective screening, this has support frame 13, and protection extraction mouth is not blocked by the bastard coal fallen.
Described secondary goaf extraction system comprises stay cord 5, packed-piston head 6, envelope wall piston tube 7, floral tube 8 and secondary inlet arm 9, the main releasing pipe 4 of pipe laying is provided with secondary inlet arm 9, secondary inlet arm 9 is connected with floral tube 8, floral tube 8 is provided with air inlet port 8-1, envelope wall piston tube 7 is arranged with in floral tube 8, envelope wall piston tube 7 external diameter is equal with floral tube 8 internal diameter, can realize when sealing wall piston tube 7 external diameter and being inserted in floral tube 8, air inlet port 8-1 on envelope wall piston tube outer wall sealing floral tube, can realize again envelope wall piston tube 7 and slide in floral tube 8.One end of envelope wall piston tube 7 is provided with packed-piston head 6, and packed-piston head 6 is connected with stay cord, and the other end of stay cord is provided with draw ring 2.
Installation process of the present utility model and operating principle as follows:
As illustrated in fig. 1 and 2, the controlled mash gas extraction device of actual mining face goaf of the present utility model pipe laying classification, mainly one-level goaf extraction system and secondary can empty extraction system compositions.In air return way 18, extraction main line 1 is installed, by the main pipe laying 4 of Flange joint, extend to goaf 14, there is divider wall 3 that goaf and work plane 17 are separated in coal-winning machine hydraulic support 15 rear end, be positioned at air return way side, one-level extraction mouth is had from pipe laying supervisor 4 certain spacing, and connect one-level air induction hose 10, flexible pipe insertion arranges gas and collects storehouse 12, cover its extraction mouth, collect storehouse should increase to some extent along with along with extraction mouth enters two-phase, adopt triangle skeleton 13 cross section, gas collects storehouse 12 and covers upper protective screening 11, protection extraction mouth is not blocked by the bastard coal fallen, affect gas drainage results, make to have around extraction mouth simultaneously a space just gas collect, favourable raising gas pumping effect, continue to employ the free pathway of Gas Flow, it is short that gas collects storehouse 12, solid, stable, very large compressive load can be born and do not damage.Owing to adopting Ullage divider wall 80 ~ 100m, place's gas extraction concentration is high, effective, and when adopting Ullage divider wall and being less than 40m, extraction system in secondary goaf is in closure state, as shown in Figure 3.One-level extraction system plays a role, and can reduce negative pressure like this, strengthens gas drainage results.
Along with work plane is pushed ahead, secondary goaf extraction system be along with adopt Ullage divider wall be greater than 40m time, slowly twitch envelope wall piston tube with stay cord, as shown in Figure 4, pull the upper floral tube air inlet port of secondary inlet visitor to be simultaneously opened, along with adopting, Ullage divider wall distance is far away, floral tube air inlet port is opened, and adopts Ullage divider wall 80 ~ 100m place and all opens, and strengthens gas drainage under suction, realize the controlled object that draws out methane of secondary like this, reach efficient extraction.
Claims (4)
1. the controlled mash gas extraction device of actual mining face goaf pipe laying classification, is characterized in that, comprising one-level goaf extraction system and secondary can empty extraction system; Described one-level goaf extraction system is used for main for pipe laying releasing pipe (4) to extend to goaf (14); Described secondary goaf extraction system comprises stay cord (5), packed-piston head (6), envelope wall piston tube (7), floral tube (8) and secondary inlet arm (9), the main releasing pipe of pipe laying (4) is provided with secondary inlet arm (9), secondary inlet arm (9) is connected with floral tube (8), floral tube (8) is provided with air inlet port (8-1), envelope wall piston tube (7) is arranged with in floral tube (8), one end of envelope wall piston tube (7) is provided with packed-piston head (6), and packed-piston head (6) is connected with stay cord.
2. the controlled mash gas extraction device of actual mining face goaf according to claim 1 pipe laying classification, is characterized in that, described one-level goaf extraction system and secondary can empty extraction system interval be arranged.
3. the controlled mash gas extraction device of actual mining face goaf according to claim 1 and 2 pipe laying classification; it is characterized in that; described one-level goaf extraction system comprises the one-level air induction hose (10) being arranged on the main releasing pipe of pipe laying (4); one-level air induction hose (10) insertion arranges gas and collects storehouse (12); cover its extraction mouth; gas collects outside storehouse (12) and is arranged with protective screening (11), and in protective screening, this has support frame (13), and protection extraction mouth is not blocked by the bastard coal fallen.
4. the controlled mash gas extraction device of actual mining face goaf according to claim 1 pipe laying classification, is characterized in that, the other end of described stay cord is provided with draw ring (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420425222.3U CN204060771U (en) | 2014-07-31 | 2014-07-31 | The controlled mash gas extraction device of actual mining face goaf pipe laying classification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420425222.3U CN204060771U (en) | 2014-07-31 | 2014-07-31 | The controlled mash gas extraction device of actual mining face goaf pipe laying classification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204060771U true CN204060771U (en) | 2014-12-31 |
Family
ID=52202308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420425222.3U Expired - Fee Related CN204060771U (en) | 2014-07-31 | 2014-07-31 | The controlled mash gas extraction device of actual mining face goaf pipe laying classification |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204060771U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106053161A (en) * | 2016-07-22 | 2016-10-26 | 中国矿业大学(北京) | Three-dimensional measuring device and monitoring method for concentration areal distribution of gas in goaf |
| CN107091114A (en) * | 2017-06-29 | 2017-08-25 | 辽宁工程技术大学 | A kind of coal mine gob beam tube protection device and its application method |
| CN108459349A (en) * | 2018-02-08 | 2018-08-28 | 杭州超钜科技有限公司 | Seismic precursor soil tomography gas content observing well construction |
| CN113153415A (en) * | 2021-03-24 | 2021-07-23 | 中煤科工集团沈阳研究院有限公司 | Pneumatic control device for pipe burying in goaf and using method |
-
2014
- 2014-07-31 CN CN201420425222.3U patent/CN204060771U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106053161A (en) * | 2016-07-22 | 2016-10-26 | 中国矿业大学(北京) | Three-dimensional measuring device and monitoring method for concentration areal distribution of gas in goaf |
| CN107091114A (en) * | 2017-06-29 | 2017-08-25 | 辽宁工程技术大学 | A kind of coal mine gob beam tube protection device and its application method |
| CN108459349A (en) * | 2018-02-08 | 2018-08-28 | 杭州超钜科技有限公司 | Seismic precursor soil tomography gas content observing well construction |
| CN113153415A (en) * | 2021-03-24 | 2021-07-23 | 中煤科工集团沈阳研究院有限公司 | Pneumatic control device for pipe burying in goaf and using method |
| CN113153415B (en) * | 2021-03-24 | 2024-04-30 | 中煤科工集团沈阳研究院有限公司 | Goaf pipe laying pneumatic control device and use method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204060771U (en) | The controlled mash gas extraction device of actual mining face goaf pipe laying classification | |
| CN103277129B (en) | One prevents Top Corner Gas on Coal Face to transfinite technology | |
| CN205089360U (en) | Large aperture collecting space area pipe laying gas drainage device | |
| CN206290281U (en) | A kind of mine gas extraction pipe negative pressure automatic drainage device | |
| CN203146015U (en) | Ascending drilling hole orifice drainage device | |
| CN206468372U (en) | A kind of automatic slag-discharging water draining device of gas pumping pipe | |
| CN101864982A (en) | Mechanical coal wall water injection hole sealing device | |
| CN205918391U (en) | Coalbed gas blowout preventer | |
| CN204083740U (en) | Wire rope automatic oiling device | |
| CN203035257U (en) | Downward slant hole slag and water discharge device of downward drilling hole | |
| CN102877880B (en) | Setback crossed shield extraction system on upper corner of working face and extraction method | |
| CN205225321U (en) | Scalable riser remote control gas drainage device in colliery collecting space area | |
| CN202745919U (en) | Backward crossing shield type drainage system for mining face upper corner | |
| CN203347839U (en) | Energy-saving, emergent and anti-clogging full pipe (group) free drainage system of gob | |
| CN205654371U (en) | Fire damp is taken out and is put drilling yard air water coal separator | |
| CN201396190Y (en) | Pneumatic drainage device | |
| CN204573414U (en) | A kind of can the stope filling pipe joint of long-range dismounting | |
| CN204419239U (en) | Ground gas drainage system | |
| CN203603971U (en) | Drainage device used for gas drainage pipelines | |
| CN205225330U (en) | Mine safety prevents stifled drainage system | |
| CN205259978U (en) | Water coal slime collection device | |
| CN203403851U (en) | Downhole fiber-reinforced continuous composite tube fishing tool of oil field water injection well | |
| CN202810902U (en) | Coal mine pumping and discharging negative pressure dust extraction unit | |
| CN202745934U (en) | Downward extraction borehole drainage device | |
| CN205189927U (en) | Gas construction structures is got rid of with pressure wind to high gas tunnel construction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20160731 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |