CN210239725U - Working face return air corner oxygen increasing device - Google Patents
Working face return air corner oxygen increasing device Download PDFInfo
- Publication number
- CN210239725U CN210239725U CN201920893858.3U CN201920893858U CN210239725U CN 210239725 U CN210239725 U CN 210239725U CN 201920893858 U CN201920893858 U CN 201920893858U CN 210239725 U CN210239725 U CN 210239725U
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- China
- Prior art keywords
- corner
- working face
- return air
- guide pipe
- air
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 239000001301 oxygen Substances 0.000 title claims abstract description 48
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 52
- 239000007921 spray Substances 0.000 claims abstract description 18
- 239000007789 gas Substances 0.000 claims abstract description 17
- 238000006213 oxygenation reaction Methods 0.000 claims abstract description 11
- 238000005507 spraying Methods 0.000 claims abstract description 9
- 239000003245 coal Substances 0.000 claims abstract description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 238000005276 aerator Methods 0.000 claims 4
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000010276 construction Methods 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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Abstract
The utility model discloses a working face return air corner oxygenation device, working face return air corner oxygenation device still include including the hydraulic support that is used for supporting coal face: an oxygen source mounted on the hydraulic support; the first end of the air guide pipe is communicated with the oxygen source, and the second end of the air guide pipe extends to a working face return corner and is used for guiding high-pressure gas in the oxygen source to the working face return corner; the spraying device comprises a water guide pipe, the first end of the water guide pipe extends to the return air corner of the working face, a spray head is arranged at the first end of the water guide pipe, and the water outlet direction of the spray head faces to the air outlet of the second end of the air guide pipe. The utility model provides a working face return air corner oxygenation device has increased the oxygen concentration of working face return air corner, has reduced harmful gas concentration, has increased the security of production and construction.
Description
Technical Field
The utility model relates to a coal face technical field especially relates to a working face return air corner oxygenation device.
Background
The working face air return corner refers to the position above the intersection of the working face and the air return roadway and is located about 0.5m below the top plate.
In the prior art, the characteristics of the arrangement of the machine tail equipment of the fully mechanized mining face determine that the resistance of air flow flowing from the air return corner is far greater than the resistance of air flow flowing into the air return crossheading along the coal wall, so that the air volume of the air return corner is small, the oxygen concentration is low, toxic and harmful gases are easy to accumulate, the personal health of constructors is harmed, and the safety production is not facilitated.
SUMMERY OF THE UTILITY MODEL
The utility model provides a working face return air corner oxygenation device to solve the problem that exists among the prior art, increase the oxygen concentration of working face return air corner, reduce harmful gas concentration, increase the security of production construction.
The utility model provides a working face return air corner oxygenation device, including the hydraulic support that is used for supporting coal face, still include: an oxygen source mounted on the hydraulic support; the first end of the air guide pipe is communicated with the oxygen source, and the second end of the air guide pipe extends to a working face return corner and is used for guiding high-pressure gas in the oxygen source to the working face return corner; the spraying device comprises a water guide pipe, the first end of the water guide pipe extends to the return air corner of the working face, a spray head is arranged at the first end of the water guide pipe, and the water outlet direction of the spray head faces to the air outlet of the second end of the air guide pipe.
Optionally, the hydraulic support comprises a top beam for supporting the roadway roof, and the oxygen source is arranged on one side of the top beam, which faces away from the roadway roof.
Optionally, the oxygen source is a compressed air self-rescue device.
Optionally, the spraying device further comprises a water supply rescue device located in the roadway, and the second end of the water guide pipe is communicated to the water supply rescue device and used for guiding water in the water supply rescue device to the spray head.
Optionally, the number of the spray heads is multiple, and the multiple spray heads are arranged in a row along the extending direction of the first end of the water conduit.
Optionally, the water conduit is fixed on the side wall of the roadway.
Optionally, at least one of the air guide pipe and the water guide pipe is a stainless steel pipe.
Optionally, a control valve is mounted on the water conduit.
Optionally, the working face return air corner oxygenation device further comprises an oxygen detector, and the oxygen detector is arranged at the working face return air corner.
The utility model provides a working face return air corner oxygenation device can pass through the guide duct and impress high-pressure gas to the working face return air corner, increase the oxygen content and the amount of wind of working face return air corner, shower nozzle spun liquid can drive the second end spun high-pressure gas of guide duct and take place the disturbance, increase high-pressure gas at the flow velocity of working face return air corner, the harmful gas who drives working face return air corner flows out working face return air corner fast, the oxygen concentration of working face return air corner has been improved, the security of production construction operation has been increased.
Drawings
The preferred embodiments of the present invention will hereinafter be described in detail to facilitate understanding of the objects and advantages of the invention, with reference to the accompanying drawings, in which:
fig. 1 is a schematic structural view of a return air corner oxygen increasing device for a working surface according to an alternative embodiment of the present invention.
Detailed Description
The terms of orientation of up, down, left, right, front, back, top, bottom, and the like as referred to or as may be referred to in this specification are defined with respect to the configuration shown in the drawings, and the terms "inner" and "outer" refer to directions toward and away from the geometric center of a particular component and are relative terms, and thus may be changed accordingly depending on the position and the state of use of the particular component. Therefore, these and other directional terms should not be construed as limiting terms.
Fig. 1 is a schematic structural view of a return air corner oxygen increasing device for a working surface according to an alternative embodiment of the present invention. The circular area A is a return air corner of the working surface, and the arrow B is the flowing direction of air in the air guide pipe. As shown in fig. 1, the utility model provides a working face return air corner oxygenation device, include: the device comprises a hydraulic support 1 for supporting a coal face, an oxygen source, an air guide pipe 2 and a spraying device.
Referring to fig. 1, an oxygen source is installed on a hydraulic bracket 1, a first end of the air guide tube 2 is communicated with the oxygen source, and a second end of the air guide tube 2 extends to a working surface return air corner for guiding high-pressure gas in the oxygen source to the working surface return air corner. As shown in fig. 1, the air return corner of the working face shown in the area a is located between the hydraulic support 1 and the wall of the air return roadway, and the oxygen source is arranged on the hydraulic support 1, so that the length of the air guide pipe 2 can be greatly shortened, the laying of the air guide pipe 2 is simplified, and the production cost is reduced.
The spraying device comprises a water guide pipe 3, a first end of the water guide pipe 3 extends to the return air corner of the working surface, a spray head 31 is arranged at the first end of the water guide pipe 3, and the water outlet direction of the spray head 31 faces to an air outlet at the second end of the air guide pipe 2.
In the embodiment, high-pressure gas can be pressed into the return air corner of the working face through the air guide pipe 2, so that the oxygen content and the air quantity of the return air corner of the working face are increased, the liquid sprayed by the spray head 31 can drive the high-pressure gas sprayed by the second end of the air guide pipe 2 to generate disturbance, the flowing speed of the high-pressure gas at the return air corner of the working face is increased, the harmful gas at the return air corner of the working face is driven to rapidly flow out of the return air corner of the working face, the oxygen concentration at the return air corner of the working face is improved, and the safety of production construction operation is improved.
Optionally, the hydraulic support 1 includes a top beam for supporting the roadway roof, and the oxygen source is disposed on the top beam facing away from one side of the roadway roof. The distance between the top beam of the hydraulic support 1 and the return air corner of the working surface is smaller in the vertical height, and the laying length of the air guide pipe 2 can be further reduced by arranging the oxygen source on the top beam.
Preferably, the oxygen source is a compressed air self-rescue device 4. The compressed air self-rescue device 4 is an existing device in a roadway, fresh air is arranged in the device and used for providing fresh air for workers when the gas concentration exceeds the standard, the compressed air self-rescue device 4 can be made of local materials by setting an oxygen gas source, and the production cost is simplified.
On the basis of the above embodiment, the spraying device further includes a water supply rescue device located in the roadway, and the second end of the water conduit 3 is communicated to the water supply rescue device and is used for guiding water in the water supply rescue device to the spray head 31. Similarly, the water supply rescue device in the embodiment is also the existing equipment in the roadway, the water source can be led from the static pressure water tank, the embodiment leads the water in the water supply rescue device to the spray head 31, and the effects of simplifying pipeline laying and reducing production cost are also achieved.
Further, the number of the spray heads 31 is plural, and the plurality of spray heads 31 are arranged in line along the extending direction of the first end of the water guide pipe 3. This embodiment can further increase the flow rate of air in the return corner of the work surface, increasing the oxygen concentration in the return corner of the work surface.
Optionally, the water conduit 3 is fixed on the side wall of the roadway. This embodiment can be with aqueduct 3 along the construction of tunnel lateral wall, avoids aqueduct 3 to disturb mining equipment.
Preferably, at least one of the air guide duct 2 and the water guide duct 3 is a stainless steel tube. The probability of corrosion in the stainless steel pipe is low, the probability of foreign matters discharged from the water guide pipe 3 and the air guide pipe 2 is reduced, and the cleanness of gas discharged from the second end of the air guide pipe 2 and water discharged from the spray head 31 is improved.
As an optional implementation, a control valve is installed on the water guide pipe 3. By adjusting the opening and closing of the control valve, water supply can be cut off when the oxygen concentration of the return air corner of the working face is high, water supply can be recovered when the oxygen concentration of the return air corner of the working face is low, and water sources are saved.
Furthermore, the working face return air corner oxygenation device further comprises an oxygen detector, and the oxygen detector is arranged at the working face return air corner. The oxygen detector in the embodiment can detect the oxygen concentration in real time, and when the volume content of the oxygen concentration is less than 18%, the working oxygen supply of the air guide pipe 2 and the water guide pipe 3 is controlled, so that the working effectiveness of the air guide pipe 2 and the spraying device is improved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (9)
1. The utility model provides a working face return air corner oxygenation device, includes the hydraulic support that is used for supporting coal face, its characterized in that still includes:
an oxygen source mounted on the hydraulic support;
the first end of the air guide pipe is communicated with the oxygen source, and the second end of the air guide pipe extends to a working face return corner and is used for guiding high-pressure gas in the oxygen source to the working face return corner;
the spraying device comprises a water guide pipe, the first end of the water guide pipe extends to the return air corner of the working face, a spray head is arranged at the first end of the water guide pipe, and the water outlet direction of the spray head faces to the air outlet of the second end of the air guide pipe.
2. The work surface return corner oxygen enhancement device of claim 1, wherein the hydraulic support includes a top beam for supporting a roadway roof, the source of oxygen being disposed on a side of the top beam facing away from the roadway roof.
3. The working surface return corner oxygen enhancement device of claim 2, wherein the oxygen source is a forced air self-rescue device.
4. The return air corner oxygen increasing device for working surfaces as claimed in claim 3, wherein the spraying device further comprises a water supply rescue device located in the roadway, and the second end of the water conduit is communicated to the water supply rescue device for guiding the water in the water supply rescue device to the spray head.
5. The return air corner aerator as claimed in claim 4, wherein the number of said nozzles is plural, and a plurality of said nozzles are arranged along the extending direction of the first end of said water guiding pipe.
6. The return air corner aerator of claim 5 wherein said conduit is secured to the side wall of the roadway.
7. The return air corner aerator as claimed in claim 6, wherein at least one of the air guide duct and the water guide duct is a stainless steel tube.
8. The return air corner aerator of claim 7 wherein said conduit is fitted with a control valve.
9. The return air corner oxygen enhancement device of any one of claims 1-8, further comprising an oxygen detector disposed at the return air corner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920893858.3U CN210239725U (en) | 2019-06-13 | 2019-06-13 | Working face return air corner oxygen increasing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920893858.3U CN210239725U (en) | 2019-06-13 | 2019-06-13 | Working face return air corner oxygen increasing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210239725U true CN210239725U (en) | 2020-04-03 |
Family
ID=69985835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920893858.3U Active CN210239725U (en) | 2019-06-13 | 2019-06-13 | Working face return air corner oxygen increasing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210239725U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111911221A (en) * | 2020-08-14 | 2020-11-10 | 辽宁工程技术大学 | Low-oxygen treatment method for corners on stope face |
| CN113914915A (en) * | 2021-10-12 | 2022-01-11 | 中国矿业大学 | Positioning type coal mining support based on internet of things technology |
| CN114294042A (en) * | 2022-01-28 | 2022-04-08 | 徐州矿务集团有限公司 | Equipment and method for treating low oxygen at return air corner |
-
2019
- 2019-06-13 CN CN201920893858.3U patent/CN210239725U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111911221A (en) * | 2020-08-14 | 2020-11-10 | 辽宁工程技术大学 | Low-oxygen treatment method for corners on stope face |
| CN113914915A (en) * | 2021-10-12 | 2022-01-11 | 中国矿业大学 | Positioning type coal mining support based on internet of things technology |
| CN114294042A (en) * | 2022-01-28 | 2022-04-08 | 徐州矿务集团有限公司 | Equipment and method for treating low oxygen at return air corner |
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