CN219932230U - Coal mine gas drainage drilling gas anti-overflow device - Google Patents
Coal mine gas drainage drilling gas anti-overflow device Download PDFInfo
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- CN219932230U CN219932230U CN202321271852.5U CN202321271852U CN219932230U CN 219932230 U CN219932230 U CN 219932230U CN 202321271852 U CN202321271852 U CN 202321271852U CN 219932230 U CN219932230 U CN 219932230U
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- tank body
- gas
- overflow
- inlet
- spiral
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- 239000003245 coal Substances 0.000 title claims abstract description 27
- 238000005553 drilling Methods 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 37
- 238000000605 extraction Methods 0.000 claims abstract description 10
- 230000002265 prevention Effects 0.000 claims abstract description 7
- 239000003818 cinder Substances 0.000 abstract description 8
- 238000010276 construction Methods 0.000 abstract description 7
- 239000000203 mixture Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 4
- 230000005484 gravity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- COCAUCFPFHUGAA-MGNBDDOMSA-N n-[3-[(1s,7s)-5-amino-4-thia-6-azabicyclo[5.1.0]oct-5-en-7-yl]-4-fluorophenyl]-5-chloropyridine-2-carboxamide Chemical compound C=1C=C(F)C([C@@]23N=C(SCC[C@@H]2C3)N)=CC=1NC(=O)C1=CC=C(Cl)C=N1 COCAUCFPFHUGAA-MGNBDDOMSA-N 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model provides a coal mine gas extraction drilling gas overflow prevention device, which comprises a tank body, wherein an inlet is formed in one side of the tank body, an exhaust port is formed in the top of the tank body, a spiral turning cylinder is arranged in the tank body, a drain pipe is further connected in the tank body, and a drain pipe is connected to the bottom of the tank body; the surface mounting of the tank body is provided with a viewing pipe, and one end of the inlet is connected with an anti-overflow component. According to the utility model, through the mutual coordination among the anti-overflow component, the inlet, the exhaust port and the spiral foldback cylinder, a large amount of gas, coal cinder and water which are instantaneously flushed out of the drill hole can be guided into the tank body from the inlet by the anti-overflow component, and a large amount of gas is intensively discharged to a designated safety position through the spiral foldback cylinder and the exhaust port by the pipeline, so that the over-limit of underground gas is effectively prevented, and the underground safety construction is realized.
Description
Technical Field
The utility model belongs to the field of coal mining, and particularly relates to a coal mine gas extraction drilling gas overflow prevention device.
Background
When the coal mine is mined, a gas extraction hole is usually drilled in a coal seam, the gas needs to be extracted in order to avoid explosion of gas leakage in a mine channel, and in the process of drilling holes in underground construction, when a drill rod enters the coal seam, a large amount of gas, coal slag and water instantaneously rush out of the drilled holes, so that a jet hole power phenomenon is easily formed in the drill hole, if the gas cannot be well controlled, the gas is easily out of limit, safety accidents are generated, and the underground safety construction is not facilitated.
In summary, the present utility model provides a coal mine gas drainage borehole gas overflow prevention device to solve the above problems.
Disclosure of Invention
The utility model aims to provide a coal mine gas extraction drilling gas anti-overflow device, which solves the problems that in the process of underground construction drilling, a jet hole power phenomenon is easily formed at a drill hole, gas overruns and safety accidents are generated;
in order to achieve the above purpose, the present utility model provides the following technical solutions: the coal mine gas drainage drilling gas anti-overflow device comprises a tank body, wherein an inlet is formed in one side of the tank body, an exhaust port is formed in the top of the tank body, a spiral turning cylinder is arranged in the tank body, a drain pipe is further connected to the inside of the tank body, and a drain pipe is connected to the bottom of the tank body;
the surface mounting of the tank body is provided with a viewing pipe, and one end of the inlet is connected with an anti-overflow component.
Preferably, the main body of the spiral turning cylinder is conical, the outer wall of the main body of the spiral turning cylinder is provided with spiral lugs, and two ends of the spiral turning cylinder are respectively communicated with the exhaust port and the inside of the tank body.
Preferably, the drain pipe is of an L-shaped structure, the water outlet of the drain pipe is higher than the water inlet of the drain pipe, and the water outlet of the drain pipe is lower than the bottom of the spiral turning cylinder.
Preferably, the spill-proof assembly comprises: the anti-overflow cover is connected to one end of the corrugated pipe, and the drill rod jack is arranged on the surface of the anti-overflow cover.
Preferably, the other end of the corrugated pipe is fixedly connected with the inlet through a bolt.
Compared with the prior art, the utility model has the following beneficial effects:
1. according to the utility model, through the mutual coordination among the anti-overflow component, the inlet, the exhaust port and the spiral foldback cylinder, a large amount of gas, coal cinder and water which are instantaneously flushed out of the drill hole can be guided into the tank body from the inlet by the anti-overflow component, and a large amount of gas is intensively discharged to a designated safety position through the spiral foldback cylinder and the exhaust port by the pipeline, so that the over-limit of underground gas is effectively prevented, and the underground safety construction is realized;
2. the utility model can also realize the separation of coal cinder and water through the arranged drain pipe and the drain pipe, and is convenient for collecting and using the coal cinder.
Drawings
FIG. 1 is a schematic diagram of the front view of the present utility model;
FIG. 2 is a schematic cross-sectional view of the tank of the present utility model;
FIG. 3 is a schematic top view of the spill-proof cover of the present utility model.
In the figure: 1. a tank body; 2. an inlet; 3. an exhaust port; 4. a spiral turn-back cylinder; 5. a drain pipe; 6. a blow-down pipe; 7. a viewing tube; 8. a bellows; 9. an anti-overflow cover; 10. and a drill rod jack.
Detailed Description
Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.
As shown in fig. 1-3, the utility model provides a coal mine gas extraction drilling gas anti-overflow device, which comprises a tank body 1, wherein one side of the tank body 1 is provided with an inlet 2, the top of the tank body 1 is provided with an exhaust port 3, the top of the exhaust port 3 is connected with a vacuum pump through a pipeline, so that negative pressure is formed in the tank body 1, the vacuum pump is in the prior art, the vacuum pump is not repeated, a spiral turning cylinder 4 is arranged in the tank body 1, the main body of the spiral turning cylinder 4 is conical, the outer wall of the main body of the spiral turning cylinder 4 is provided with spiral lugs, two ends of the spiral turning cylinder 4 are respectively communicated with the exhaust port 3 and the inside of the tank body 1, when a mixture of gas, coal slag and water enters the spiral turning cylinder 4 through the inlet 2, the mixture can flow down to the inside of the tank body 1 through the outer wall of the spiral turning cylinder 4, the coal cinder and water can fall into the tank body 1 to be gathered and layered under the influence of gravity and form a water seal, gas in the mixture enters the exhaust port 3 from the bottom of the spiral foldback cylinder 4 and is discharged to a safe position, the inside of the tank body 1 is also connected with a drain pipe 5, the drain pipe 5 is of an L-shaped structure, the water outlet of the drain pipe 5 is higher than the water inlet of the drain pipe 5, the height difference generated by the water outlet and the water inlet of the drain pipe 5 is the height of the water seal, so that the gas is not leaked, the water outlet of the drain pipe 5 is lower than the bottom of the spiral foldback cylinder 4, the water level of the water seal is not too high, the gas is not hindered from being discharged from the bottom of the spiral foldback cylinder 4, the bottom of the tank body 1 is connected with a drain pipe 6, and the outlet end of the drain pipe 6 is provided with a valve (not marked in the figure), and the discharge of the coal cinder can be controlled; the surface mounting of jar body 1 has to look the liquid pipe 7, looks at the height that liquid pipe 7 is used for making things convenient for operating personnel to look over the water seal, prevents that the height of water seal from being too low, causes the leakage of gas, and the one end of entry 2 is connected with anti-overflow subassembly, and anti-overflow subassembly includes: bellows 8, anti-overflow cover 9 and drilling rod jack 10, anti-overflow cover 9 connect the one end at bellows 8, and anti-overflow cover 9 mountable is in drill way department, when orifice power phenomenon appears, can be with the leading-in jar of body 1 of spun mixture, effectively prevent the excessive of mixture, drilling rod jack 10 is seted up on the surface of anti-overflow cover 9, and drilling rod jack 10 is used for the insertion of drilling rod to make things convenient for anti-overflow cover 9 to cup joint at the drilling rod outer wall, the other end of bellows 8 passes through bolt and entry 2 fixed connection.
The specific working principle is as follows: when the coal mine gas extraction drilling gas anti-overflow device is used, as shown in fig. 1-3, the valve at the end of the blow-off pipe 6 is closed, water is injected into the tank body 1, the water outlet of the blow-off pipe 5 can automatically discharge water, a drill rod is inserted into the drill rod jack 10, the anti-overflow cover 9 is fixed at the drill hole, when the construction drilling is performed, the mixture generated by the spray hole phenomenon enters the spiral foldback cylinder 4 in the tank body 1 from the inlet 2 under the action of the vacuum pump arranged at the top of the exhaust port 3, after the mixture touches the spiral foldback cylinder 4, the gas is folded back from the bottom of the spiral foldback cylinder 4 and pressed into the exhaust port 3 to be discharged to a designated safe position, the coal cinder, water and moisture are gathered and fall into the tank body 1 along the threaded outer wall of the main body of the spiral foldback cylinder 4, the coal cinder is gathered in the blow-off pipe 6 under the influence of gravity and can be discharged through the valve at any time, and the water can form a water seal to prevent gas leakage, meanwhile, if the water seal liquid level is higher than the water outlet of the water outlet pipe 5, the water outlet of the water outlet pipe 5 can be automatically discharged, so that the normal liquid level is kept, the gas can be effectively prevented from leaking out of the pit through fixed-point discharge of the gas, thereby realizing safe construction of the pit and improving the safety.
The embodiments of the present utility model have been shown and described for the purpose of illustration and description, it being understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made therein by one of ordinary skill in the art without departing from the scope of the utility model.
Claims (5)
1. The utility model provides a colliery gas drainage drilling gas anti-overflow device, includes a jar body (1), its characterized in that: an inlet (2) is formed in one side of the tank body (1), an exhaust port (3) is formed in the top of the tank body (1), a spiral turning-back cylinder (4) is arranged in the tank body (1), a drain pipe (5) is further connected in the tank body (1), and a drain pipe (6) is connected to the bottom of the tank body (1);
the surface mounting of the tank body (1) is provided with a viewing pipe (7), and one end of the inlet (2) is connected with an anti-overflow component.
2. The coal mine gas extraction borehole gas overflow prevention device as claimed in claim 1, wherein: the main body of the spiral turning cylinder (4) is conical, spiral lugs are arranged on the outer wall of the main body of the spiral turning cylinder (4), and two ends of the spiral turning cylinder (4) are respectively communicated with the exhaust port (3) and the inside of the tank body (1).
3. The coal mine gas extraction borehole gas overflow prevention device as claimed in claim 1, wherein: the water outlet of the water drain pipe (5) is higher than the water inlet of the water drain pipe (5), and the water outlet of the water drain pipe (5) is lower than the bottom of the spiral turning cylinder (4).
4. The coal mine gas extraction borehole gas overflow prevention device as claimed in claim 1, wherein: the spill-resistant assembly includes: bellows (8), anti-overflow cover (9) and drilling rod jack (10), anti-overflow cover (9) connect the one end at bellows (8), drilling rod jack (10) are seted up on the surface of anti-overflow cover (9).
5. The coal mine gas extraction borehole gas overflow prevention device as claimed in claim 4, wherein: the other end of the corrugated pipe (8) is fixedly connected with the inlet (2) through a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321271852.5U CN219932230U (en) | 2023-05-24 | 2023-05-24 | Coal mine gas drainage drilling gas anti-overflow device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321271852.5U CN219932230U (en) | 2023-05-24 | 2023-05-24 | Coal mine gas drainage drilling gas anti-overflow device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219932230U true CN219932230U (en) | 2023-10-31 |
Family
ID=88487829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321271852.5U Active CN219932230U (en) | 2023-05-24 | 2023-05-24 | Coal mine gas drainage drilling gas anti-overflow device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219932230U (en) |
-
2023
- 2023-05-24 CN CN202321271852.5U patent/CN219932230U/en active Active
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