CN205638390U - Colliery is taken out and is put guard aperture screen pipe for gas - Google Patents
Colliery is taken out and is put guard aperture screen pipe for gas Download PDFInfo
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- CN205638390U CN205638390U CN201620495353.8U CN201620495353U CN205638390U CN 205638390 U CN205638390 U CN 205638390U CN 201620495353 U CN201620495353 U CN 201620495353U CN 205638390 U CN205638390 U CN 205638390U
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- gas
- guard aperture
- hole
- coal bed
- aperture screen
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Abstract
The utility model belongs to the technical field of the colliery is taken out and is put the gas accessory, a colliery is taken out and is put guard aperture screen pipe for gas is disclosed. Its main technical scheme includes: its structure includes that the tip is provided with can be with the fixed fastener of the colliery well wall of a well, and can let in the rigid plastic bobbin in the PVC hole sealing pipe of inserting in the drilling of coal seam, is provided with a plurality of gas and takes out the hole on the pipe wall of this rigid plastic bobbin, be provided with the pipe box mechanism that can be connected with the connecting pipe on the above -mentioned mounting. The device can overcome unnecessary slag particle and take the emergence that causes the pipeline jam and effectively prevent the phenomenon of collapsing of the downthehole portion in coal seam out, has effectively improved the pump drainage efficiency of coal mine gas.
Description
Technical field
This utility model belongs to coal bed methane extraction accessory technical field, concretely relates to a kind of coal bed methane extraction guard aperture screen casing.
Background technology
Coal mine gas extraction pipeline is made up of the connecting tube between the PVC hole sealing tube being placed in hole, coal seam, the exhaust line being provided with some threeways, the threeway being connected in exhaust line and PVC hole sealing tube and air draft mechanism.I.e. in above-mentioned gas exhaust system, the exhaust line being provided with air draft mechanism is directly connected with PVC hole sealing tube by connecting tube, this structure there is problems in that one during gas exhaust, can be extracted out by slag particle unnecessary for hole, coal seam when drawing-off gas, cause the blocking of pipeline；Its two, the negative pressure to tens of rice to the deep hole, coal seam of rice up to a hundred can be caused during convulsion uneven, and cause caving within hole, coal seam, and affect emission effect.
Utility model content
The purpose of this utility model be just to provide a kind of can overcome unnecessary slag particle extract out cause pipeline blocking and effectively prevent the coal bed methane extraction guard aperture screen casing caved within hole, coal seam.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of coal bed methane extraction guard aperture screen casing, its structure includes
End is provided with the securing member fixing with the coal mine borehole wall and can be passed through the rigid plastics socket in the PVC hole sealing tube being inserted in coal bed drilling, is provided with some gas and takes out hole on the tube wall of this rigid plastics socket；The pipe box mechanism being connected with connecting tube it is provided with on described fixture.
In the structure constituting above-mentioned coal bed methane extraction guard aperture screen casing:
The length of described rigid plastics socket is longer than the length of described PVC hole sealing tube；
The gas of described plastic conduit pipe wall take out the aperture in hole by outer and in for ascending setting；
The gas of described plastic conduit pipe wall take out the density in hole by outer and in for by dredging close setting；
The end of described rigid plastics socket is that cone-shaped seals structure.
Coal bed methane extraction guard aperture screen casing provided by the utility model, have the advantage that one, after employing this guard aperture screen casing, i.e. pass through to be provided with gas on the tube wall in PVC hole sealing tube insertion coal bed drilling and take out the rigid plastics socket in hole, i.e. slag particle unnecessary for hole, coal seam can be leached during drawing-off gas, but outside plastic tube tube, effectively prevent slag particle from causing the generation of pipeline clogging；Its two, be to take out hole extraction by the gas on plastic conduit during due to convulsion, therefore can realize the uniform negative pressure of coal bed drilling, be prevented effectively from cause within hole, coal seam cave in phenomenon occur, improve the emission effect of gas.
Accompanying drawing explanation
The structural representation of the coal bed methane extraction guard aperture screen casing that Fig. 1 provides for this utility model.
Detailed description of the invention
Structure and assembling process to the coal bed methane extraction guard aperture screen casing that this utility model provides are described in further details below in conjunction with the accompanying drawings.
It is illustrated in figure 1 the structural representation of the coal bed methane extraction guard aperture screen casing that this utility model provides.The structure constituting this guard aperture screen casing includes that end is provided with the securing member 2 fixed with the coal mine borehole wall 1, the rigid plastics socket 4 can being passed through in the PVC hole sealing tube 3 being inserted in coal bed drilling 6, is provided with some gas and takes out hole 5 on the tube wall of this rigid plastics socket；Being provided with the pipe box mechanism 8 being connected with connecting tube 7 on fixture 2, connecting tube is connected by the threeway being connected in exhaust line 9 and air draft mechanism.
Its operation principle is: the guard aperture screen casing that air draft mechanism is consisted of the rigid plastics socket 4 in connected PVC hole sealing tube 3, is gone out by gas exhaust.
In the structure constituting above-mentioned coal bed methane extraction guard aperture screen casing:
The inner end of the coal bed drilling 6 being always inserted into by PVC hole sealing tube of rigid plastics socket, the i.e. length of rigid plastics socket are longer than the length of described PVC hole sealing tube, it is simple to the pump drainage of gas；
In order to balance the above-mentioned rigid plastics socket air pressure at the inside pump drainage gas of coal bed drilling, i.e. on tube wall gas take out the aperture in hole by outer and in for ascending setting, the i.e. aperture near the coal mine borehole wall 1 side is less, and the plastic conduit bore footpath away from the borehole wall is bigger；Or when the gas of plastic conduit pipe wall take out the density in hole by outer and in for by dredging close setting, i.e. the gas of rigid plastics socket is taken out hole 51 and is arranged close by dredging by near the coal mine borehole wall 1 side to the density in its hole at a distance, is equally reached the purpose of equilibrium air pressure；
For the ease of the insertion of rigid plastics socket, its end 10 seals structure for cone-shaped.
Claims (5)
1. a coal bed methane extraction guard aperture screen casing, it is characterised in that: its structure includes
End is provided with the securing member fixing with the coal mine borehole wall and can be passed through the rigid plastics socket in the PVC hole sealing tube being inserted in coal bed drilling, is provided with some gas and takes out hole on the tube wall of this rigid plastics socket；The pipe box mechanism being connected with connecting tube it is provided with on described fixture.
A kind of coal bed methane extraction guard aperture screen casing the most according to claim 1, it is characterised in that: the length of described rigid plastics socket is longer than the length of described PVC hole sealing tube.
A kind of coal bed methane extraction guard aperture screen casing the most according to claim 1, it is characterised in that: the gas of described plastic conduit pipe wall take out the aperture in hole by outer and in for ascending setting.
A kind of coal bed methane extraction guard aperture screen casing the most according to claim 1, it is characterised in that: the gas of described plastic conduit pipe wall take out the density in hole by outer and in for by dredging close setting.
5. according to a kind of coal bed methane extraction guard aperture screen casing described in claim 1,2,3 or 4, it is characterised in that: the end of described rigid plastics socket is that cone-shaped seals structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620495353.8U CN205638390U (en) | 2016-05-28 | 2016-05-28 | Colliery is taken out and is put guard aperture screen pipe for gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620495353.8U CN205638390U (en) | 2016-05-28 | 2016-05-28 | Colliery is taken out and is put guard aperture screen pipe for gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205638390U true CN205638390U (en) | 2016-10-12 |
Family
ID=57052378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620495353.8U Active CN205638390U (en) | 2016-05-28 | 2016-05-28 | Colliery is taken out and is put guard aperture screen pipe for gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205638390U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106869989A (en) * | 2017-02-23 | 2017-06-20 | 山西晋城无烟煤矿业集团有限责任公司 | A kind of underground coal mine continuous screen manages and protects hole method |
| CN106988777A (en) * | 2017-05-02 | 2017-07-28 | 阳泉煤业集团华越机械有限公司 | A kind of method that utilization screen casing draws out methane |
-
2016
- 2016-05-28 CN CN201620495353.8U patent/CN205638390U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106869989A (en) * | 2017-02-23 | 2017-06-20 | 山西晋城无烟煤矿业集团有限责任公司 | A kind of underground coal mine continuous screen manages and protects hole method |
| CN106988777A (en) * | 2017-05-02 | 2017-07-28 | 阳泉煤业集团华越机械有限公司 | A kind of method that utilization screen casing draws out methane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171030 Address after: 053100, Hebei Province, Hengshui County, Zaoqiang Province, the west side of the road south Patentee after: HEBEI DONGRUI TIANHE PLASTIC PRODUCT CO., LTD. Address before: 045000 Shanxi suburb of Yangquan Xin Xing Cun sand mouth Patentee before: Shanxi Jing Jing Electrical Machinery Manufacturing Co., Ltd. |