CN207485466U - Gas at upper corner drainage device during high methane coal working face is just adopted - Google Patents
Gas at upper corner drainage device during high methane coal working face is just adopted Download PDFInfo
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- CN207485466U CN207485466U CN201721641743.2U CN201721641743U CN207485466U CN 207485466 U CN207485466 U CN 207485466U CN 201721641743 U CN201721641743 U CN 201721641743U CN 207485466 U CN207485466 U CN 207485466U
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- drainage tube
- gas
- upper corner
- adopted
- working face
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Abstract
The utility model provides gas at upper corner drainage device during a kind of high methane coal working face is just adopted, and device includes an at least main drainage tube；Main drainage tube installs a drainage tube at interval of certain distance；Branch drainage tube is communicated with main drainage tube；With the passage of production face, the upper corner setting block wall in goaf in current tunnel；The extraction port of current branch drainage tube and main drainage tube passes through block wall to enter current goaf, and the depth that the extraction port of main drainage tube and branch drainage tube enters in current goaf is different；Drainage device further includes gas diluter；Block wall has air inlet；Gas diluter is pressed into air quantity by air inlet to upper corner.Compared with prior art, make block wall is inside and outside to form pressure difference, a large amount of free gas is caused to be inhaled into gas pumping pipe, are transfinited so as to avoid gas at upper corner.Interlocked extraction way by main drainage tube, branch drainage tube, realize and extraction is carried out to the gas of upper corner different depth, extraction range is big.
Description
Technical field
The utility model is related to mine gas extraction technical fields, and period is specifically adopted at the beginning of high methane coal working face
Gas at upper corner drainage device.
Background technology
It is generally mating to be provided with Wei Chou lanes and suction road in process of coal mining, for mash gas extraction.But for
There is no Wei Chou lanes and the special circumstances tunnel of suction road, and in the case that top plate high position boring hole does not open effect, cause corner
Angle gas density is very high.So in this case, device a set of simple in structure, efficiently feasible is needed to be taken out to complete gas
Adopt operation.
Utility model content
The purpose of this utility model is the fully-mechanized mining working in order to solve in the prior art to take out anury lane and suction road
Gas pumping it is difficult the defects of, provide high methane coal working face just adopt during gas at upper corner drainage device it is above-mentioned to solve
Problem.
To achieve these goals, the technical solution of the utility model is as follows：
Gas at upper corner drainage device during high methane coal working face is just adopted, applied in tunnel；Described device includes
An at least main drainage tube；The main drainage tube installs a drainage tube at interval of certain distance；The branch drainage tube and main pumping
Pipe is adopted to communicate；With the passage of production face, the upper corner setting block wall in goaf in current tunnel；Presently described branch extraction
The extraction port of pipe and main drainage tube passes through the block wall to enter current goaf, and the extraction of main drainage tube and branch drainage tube
The depth that port enters in current goaf is different；The drainage device further includes gas diluter；The block wall have into
Air port；The gas diluter is pressed into air quantity by air inlet to upper corner.
Preferably, the main drainage tube is connected with branch drainage tube by threeway.
Preferably, the block wall is stacked for sandbag；Gap of the air inlet between sandbag.
Preferably, the gas diluter totally 3, and be fixed by the bracket.
Preferably, 3 gas diluters are evenly arranged along head-room direction.
Preferably, the junction of the branch drainage tube and main drainage tube is provided with to block or reconciles the lock of extraction amount
Valve.
Preferably,：Current main drainage tube is at interval of one end distance one gate of setting, to open the current pumping of main drainage tube
Adopt port.
The utility model also provides gas at upper corner pumping method during a kind of high methane coal working face is just adopted, this method
Applied to above-mentioned drainage device；This method includes the following steps：
1) pipe laying
It is realized in tunnel by main drainage tube and branch drainage tube according to design requirement pipe laying；
2) adjustment of current extraction port
According to the passage in goaf, by closing the gate valve of previous branch drainage tube, opening the gate valve of current branch drainage tube,
And it blocks main drainage tube or by opening the gate on current main drainage tube, makes the extraction end of branch drainage tube and main drainage tube
Mouth is in current mined out zone position；
3) block wall is piled up
It stacks to form block wall using sandbag, goaf is made to be separated with coal wall；
4) gas diluter is installed
Using stent, multiple gas diluters are fixed, and passes through the gap between sandbag and is pressed into air to goaf；
5) extraction of current generation is completed；
6) with the passage of production face, step 2) -5 is repeated), until exploitation terminates.
Gas at upper corner pumping method during 9. a kind of high methane coal working face according to claim 8 is just adopted,
It is characterized in that：In the step 1), pipe laying height outstanding as possible is no more than 500mm away from tunnel top.
The utility model compared with prior art, has the advantages that：
Make block wall is inside and outside to form pressure difference, a large amount of free gas is caused to be inhaled into gas pumping pipe, so as to avoid upper corner
Angle gas exceeding limit.
Interlocked extraction way by main drainage tube, branch drainage tube, realize and extraction is carried out to the gas of upper corner different depth,
Extraction range is big.
Main drainage tube and branch drainage tube realize the control of extraction port position by gate valve or gate, in order to exploitation
The propulsion in face constantly converts extraction position.
Gas diluter is fixed by the bracket, and can be moved integrally, and realization is convenient for disassembly and assembly, and repeat usage reaches.
Description of the drawings
Fig. 1 is the overall structure diagram of the utility model embodiment 1；
Fig. 2 is the structural relation schematic diagram between main drainage tube and branch drainage tube in the utility model embodiment 1.
Specific embodiment
The effect of to make to the structure feature of the utility model and being reached, has a better understanding and awareness, to compared with
Good embodiment and attached drawing cooperation detailed description, are described as follows：
Embodiment 1
Gas at upper corner drainage device during high methane coal working face is just adopted, applied in tunnel；In tunnel close to top
Portion is at least embedded to a main drainage tube 1.The present embodiment is two main drainage tubes 1 of embedment.Every main drainage tube 1 is at interval of a spacing
From one drainage tube 2 of installation；Branch drainage tube 2 is connected with main drainage tube 1 by three-way pipe.With the passage of production face, current
The upper corner setting block wall 3 in goaf in tunnel；The extraction port of current branch drainage tube 2 and main drainage tube 1 passes through block wall 3
Into current goaf 4, and the depth that the extraction port of main drainage tube 1 and branch drainage tube 2 enters in current goaf 4 is different,
To the gas of 4 different depth of extraction goaf.Drainage device further includes gas diluter 5；Block wall 3 has air inlet；Watt
This diluter 5 is pressed into air quantity by air inlet to upper corner.
The block wall 3 of the present embodiment is stacked for sandbag；Gap of the air inlet between sandbag.With pushing away for production face
Into the block wall 3 at current mined out zone position stacking block wall 3, upper one will be left in tunnel.
Gas diluter 5 totally 3,3 gas diluters 5 are evenly arranged along head-room direction, and are passed through stent 6 and fixed
In tunnel.Stent 6 and the repeatable utilization of gas diluter 5.Stent 6 can be used shaped steel and be welded.Concrete structure can have more
Kind, as long as fixed gas diluter 5 can be met.
Branch drainage tube 2 and the junction of main drainage tube 1 are provided with to block or reconcile the gate valve 21 of extraction amount.It is current main
Drainage tube 1 is at interval of one end distance one gate 11 of setting, to open the current extraction port of main drainage tube 1.
Embodiment 2
Gas at upper corner pumping method during a kind of high methane coal working face is just adopted, this method are applied to above-described embodiment
1 drainage device；This method includes the following steps：
1) stringing
It is realized in tunnel by main drainage tube 1 and branch drainage tube 2 according to design requirement stringing；
2) adjustment of current extraction port
According to the passage in goaf 4, by closing the gate valve 21 of previous branch drainage tube 2, opening current branch drainage tube 2
It gate valve 21 and blocks main drainage tube 1 or by opening the gate 11 on current main drainage tube 1, makes branch drainage tube 2 and main pumping
The extraction port for adopting pipe 1 is in current 4 position of goaf；
3) block wall 3 is piled up
It stacks to form block wall 3 using sandbag, goaf 4 is made to be separated with coal wall 7；
4) gas diluter 5 is installed
Using stent 6, multiple gas diluters 5 are fixed, and passes through the gap between sandbag and is pressed into sky to goaf 4
Gas；
5) extraction of current generation is completed；
6) with the passage of production face, step 2) -5 is repeated), until exploitation terminates.
In specific works, drainage tube has been buried in advance.Two sets of diameters are installed to take out not less than 315mm specially at the top of upper corner
Adopt pipe, a branch drainage tube 2 connected by three every 30m, interlocked extraction way using dual circuit, all the way extraction upper corner 10~
20m range gas, all the way 0~10m of extraction ranges gas.Pipe laying height outstanding as possible, is no more than 500mm, to greatest extent extraction away from top
Gas was blocked in exploitation in face upper corner angle using sack wall before this, and was strengthened metope and blocked quality；Then three are installed
Gas diluter 5 is pressed into air quantity to upper corner metope, dilutes and discharge gas；Fourth, increase extraction amount, it is ensured that gas pumping mixes
Resultant is not less than 200m3/min.
By using more than measure scheme, make block wall is inside and outside to form pressure difference, a large amount of free gas is caused to be inhaled into gas
Drainage tube transfinites so as to avoid gas at upper corner.
Extraction air inlet must lag behind working face open-off cut top line；Upper corner hangs air partition, is introduced certainly to metope to greatest extent
Right air quantity.Changed according to top plate high position boring hole extraction concentration, allocate 5 quantity of gas diluter.
The advantages of basic principle, main feature and the utility model of the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description
Only the utility model principle, on the premise of not departing from the spirit and scope of the utility model the utility model also have respectively
Kind changes and improvements, these changes and improvements are both fallen in claimed the scope of the utility model.The requires of the utility model
Protection domain defined by appended claims and its equivalent.
Claims (7)
- Gas at upper corner drainage device during 1. high methane coal working face is just adopted, applied in tunnel；It is characterized in that：It is described Device includes an at least main drainage tube (1)；The main drainage tube (1) installs a drainage tube (2) at interval of certain distance；Institute Branch drainage tube (2) is stated to communicate with main drainage tube (1)；With the passage of production face, the upper corner of goaf (4) in current tunnel Block wall (3) is set；The extraction port of presently described branch drainage tube (2) and main drainage tube (1) enters across the block wall (3) Current goaf (4), and the extraction port of main drainage tube (1) and branch drainage tube (2) into the depth in current goaf (4) not Together；The drainage device further includes gas diluter (5)；The block wall (3) has air inlet；The gas diluter (5) Air quantity is pressed into upper corner by air inlet.
- Gas at upper corner drainage device during 2. high methane coal working face according to claim 1 is just adopted, feature exist In:The main drainage tube (1) is connected with branch drainage tube (2) by threeway.
- Gas at upper corner drainage device during 3. high methane coal working face according to claim 1 is just adopted, feature exist In：The block wall (3) stacks for sandbag；Gap of the air inlet between sandbag.
- Gas at upper corner drainage device during 4. high methane coal working face according to claim 1 is just adopted, feature exist In：The gas diluter (5) totally 3, and it is fixed to pass through stent (6).
- Gas at upper corner drainage device during 5. high methane coal working face according to claim 4 is just adopted, feature exist In：3 gas diluters (5) are evenly arranged along head-room direction.
- Gas at upper corner drainage device during 6. high methane coal working face according to any one of claims 1 to 5 is just adopted, It is characterized in that：The branch drainage tube (2) and the junction of main drainage tube (1) are provided with to block or reconcile the gate valve of extraction amount (21)。
- Gas at upper corner drainage device during 7. high methane coal working face according to any one of claims 1 to 5 is just adopted, It is characterized in that：Current main drainage tube (1) is at interval of one end distance one gate of setting, to open the current pumping of main drainage tube (1) Adopt port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721641743.2U CN207485466U (en) | 2017-11-30 | 2017-11-30 | Gas at upper corner drainage device during high methane coal working face is just adopted |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721641743.2U CN207485466U (en) | 2017-11-30 | 2017-11-30 | Gas at upper corner drainage device during high methane coal working face is just adopted |
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| Publication Number | Publication Date |
|---|---|
| CN207485466U true CN207485466U (en) | 2018-06-12 |
Family
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|---|---|---|---|
| CN201721641743.2U Expired - Fee Related CN207485466U (en) | 2017-11-30 | 2017-11-30 | Gas at upper corner drainage device during high methane coal working face is just adopted |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533223A (en) * | 2018-02-12 | 2018-09-14 | 太原理工大学 | A kind of underground goaf residual coal bed gas methane drainage and utilization project system |
| CN109882234A (en) * | 2019-04-08 | 2019-06-14 | 贵州盘江精煤股份有限公司 | A kind of disconnected pipe structure for coal mine gob pipe laying |
| CN110159226A (en) * | 2019-06-19 | 2019-08-23 | 贵州盘江精煤股份有限公司 | A kind of gas control provided pipe fast plugging device |
| CN111379585A (en) * | 2019-12-25 | 2020-07-07 | 山西潞安环保能源开发股份有限公司常村煤矿 | Method for managing gas buried pipe on upper corner of fully mechanized coal mining face |
-
2017
- 2017-11-30 CN CN201721641743.2U patent/CN207485466U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533223A (en) * | 2018-02-12 | 2018-09-14 | 太原理工大学 | A kind of underground goaf residual coal bed gas methane drainage and utilization project system |
| CN109882234A (en) * | 2019-04-08 | 2019-06-14 | 贵州盘江精煤股份有限公司 | A kind of disconnected pipe structure for coal mine gob pipe laying |
| CN110159226A (en) * | 2019-06-19 | 2019-08-23 | 贵州盘江精煤股份有限公司 | A kind of gas control provided pipe fast plugging device |
| CN111379585A (en) * | 2019-12-25 | 2020-07-07 | 山西潞安环保能源开发股份有限公司常村煤矿 | Method for managing gas buried pipe on upper corner of fully mechanized coal mining face |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180612 Termination date: 20201130 |
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| CF01 | Termination of patent right due to non-payment of annual fee |