CN114673548A - Gas extraction device for coal mine gas prevention and control - Google Patents
Gas extraction device for coal mine gas prevention and control Download PDFInfo
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- CN114673548A CN114673548A CN202210435423.0A CN202210435423A CN114673548A CN 114673548 A CN114673548 A CN 114673548A CN 202210435423 A CN202210435423 A CN 202210435423A CN 114673548 A CN114673548 A CN 114673548A
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- pipe
- gas
- filter box
- coal mine
- extraction device
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- 239000003245 coal Substances 0.000 title claims abstract description 28
- 238000000605 extraction Methods 0.000 title claims abstract description 26
- 230000002265 prevention Effects 0.000 title abstract description 7
- 241000220317 Rosa Species 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 13
- 238000003860 storage Methods 0.000 claims description 9
- 230000000903 blocking effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 238000001914 filtration Methods 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 abstract description 6
- 239000007787 solid Substances 0.000 abstract description 6
- 239000002245 particle Substances 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 64
- 206010024796 Logorrhoea Diseases 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 238000011045 prefiltration Methods 0.000 description 2
- 210000003437 trachea Anatomy 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/34—Arrangements for separating materials produced by the well
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention relates to the technical field of coal mine gas prevention and control, and discloses a gas extraction device for coal mine gas prevention and control, which comprises a filter box, an air inlet pipe, an air outlet pipe, an air inlet mechanism and an air outlet mechanism, wherein the air inlet pipe is arranged at the bottom of the filter box; the air inlet mechanism comprises an inclined air pipe communicated with one end of the air inlet pipe close to the center of the filter box, an opening of the inclined air pipe, which is far away from one end of the air inlet pipe, is obliquely arranged towards the bottom of the filter box, and a crushing assembly for crushing bubbles is arranged close to the opening end of the inclined air pipe; air outlet mechanism, include with the tight pipe in first top of outlet duct tip sliding connection, rose box fixed connection fixing base, the fixing base rotates and connects the dwang, and the dwang outside distributes and has a plurality ofly and the tight pipe complex filter disc in first top. The invention is suitable for a gas extraction device for coal mine gas control, and the gas enters the filter box to contact with liquid through the inclined gas pipes arranged on the two sides of the gas inlet pipe, so that the filtering effect of solid particles is realized.
Description
Technical Field
The invention relates to the technical field of coal mine gas prevention and control, in particular to a gas extraction device for coal mine gas prevention and control.
Background
Coal mine gas is also called coal bed gas and coal bed gas. The mixed gas composed of methane, carbon dioxide and nitrogen, etc. escaped from coal and surrounding rock. The gas is a harmful factor in coal mine production, not only pollutes air, but also causes explosion when encountering fire when the gas content in the air is 5-16 percent, thereby causing accidents.
Need carry out the operation of gas extraction at the in-process of preventing and curing it, but the impurity that contains the particulate matter in the gas collides and can produce harm after meetting the air, consequently need filter impurity when taking out gas, and common all is that direct filter screen filters, and this still can have hidden danger, consequently needs to improve it.
Disclosure of Invention
The invention provides a gas extraction device for coal mine gas control, which solves the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a gas extraction device for coal mine gas prevention and control comprises a filter box, wherein the bottom of the filter box is provided with a gas inlet pipe, the side wall of the filter box is provided with a gas outlet pipe, and the gas extraction device also comprises a gas inlet mechanism and a gas outlet mechanism;
the air inlet mechanism comprises an inclined air pipe communicated with one end of the air inlet pipe close to the center of the filter box, an opening of the inclined air pipe, which is far away from one end of the air inlet pipe, is obliquely arranged towards the bottom of the filter box, and a crushing assembly for crushing bubbles is arranged close to the opening end of the inclined air pipe;
air outlet mechanism includes the tight pipe in first top with outlet duct tip sliding connection, rose box fixed connection fixing base, fixing base rotate to connect the dwang, and the dwang outside distributes and has a plurality ofly and the tight pipe complex filter disc in first top, the one end rotation connection rotation that the rose box was kept away from to the dwang is overlapped, is equipped with on the rotation sleeve and pushes up tight pipe with filter disc complex second, and the tight pipe in second top pushes up the axis collineation of tight pipe with first top.
As a preferable technical scheme of the invention, the top of the air inlet pipe is provided with a shunting block matched with the inclined air pipe.
As a preferred technical scheme of the invention, the crushing component comprises a fixed rod fixedly connected with the inner wall of the filter box, one end of the fixed rod close to the opening of the inclined air pipe is rotatably connected with a rotating head, the outer wall of one side of the rotating head is provided with a crushing rod, and the other side of the rotating head is provided with a spiral blade.
As a preferable technical scheme of the invention, the bottom of the filter box is provided with a conical discharge opening, the end part of the conical discharge opening is provided with a discharge pipe, the middle part of the discharge pipe is provided with a throttling assembly, and the end part of the discharge pipe is detachably connected with a material storage head.
As a preferable technical scheme of the invention, the throttling assembly comprises a rotating shaft which is rotatably connected with the discharge pipe, and a blocking piece matched with the inner wall of the discharge pipe is arranged in the middle of the rotating shaft.
As a preferable technical scheme of the invention, a water inlet is formed in the side wall of the filter box, and the height of the water inlet is lower than that of the joint of the inclined air pipe and the air inlet pipe.
As a preferable technical scheme of the invention, the end part of the water inlet is detachably connected with the plug.
As a preferable technical scheme of the invention, one end of the air outlet pipe, which is far away from the filter box, is provided with a retaining ring, one end of the first jacking pipe, which is close to the filter box, is provided with a clamping head in sliding connection with the air outlet pipe, and a first spring is arranged between the clamping head and the retaining ring.
As a preferable technical scheme of the invention, the rotating sleeve is slidably connected with a sliding plate, the sliding plate is fixedly connected with the side wall of the second jacking pipe, the end part of the rotating sleeve is provided with a limiting plate, and a second spring is arranged between the limiting plate and the sliding plate.
The invention has the following advantages:
the inclined gas pipes are arranged on the two sides of the gas inlet pipe, so that gas can enter the filter box and can be contacted with liquid, the filtering effect of solid particles is realized, the inclined gas pipes are arranged in a downward inclined mode, the liquid in the filter box cannot enter the gas inlet pipe to pollute related accessories, a material storage head and a filter disc of the whole device can be freely cleaned, the maintenance difficulty and the maintenance cost of the whole device are reduced, and the gas extraction device is suitable for popularization and use.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of a gas extraction device for coal mine gas control.
Fig. 2 is a schematic structural view of the inside of a filter box in a gas extraction device for coal mine gas control.
Fig. 3 is a partially enlarged view of a in fig. 2.
Fig. 4 is a schematic structural view of an air intake mechanism in a gas extraction device for coal mine gas control.
Fig. 5 is a partially enlarged view of B in fig. 4.
Fig. 6 is a front view of fig. 4.
Fig. 7 is a schematic structural view of an air outlet mechanism in a gas extraction device for coal mine gas control.
Fig. 8 is a front view of fig. 7.
In the figure: 1. a filter box; 2. a conical discharge outlet; 3. a discharge pipe; 4. a material storage head; 5. an air inlet pipe; 6. a transfer flange; 7. a breaking assembly; 8. a water inlet; 9. a plug; 10. fixing the rod; 11. rotating the head; 12. a crushing rod; 13. helical leaves; 14. an air outlet pipe; 15. an oblique air pipe; 16. a shunting block; 17. a rotating shaft; 18. a baffle plate; 19. a throttle assembly; 20. a baffle ring; 21. clamping a head; 22. a first spring; 23. a first puller tube; 24. a fixed seat; 25. rotating the rod; 26. a fixed block; 27. a filter tray; 28. rotating the sleeve; 29. a sliding plate; 30. a second spring; 31. a limiting plate; 32. a second puller tube; 33. an air intake mechanism; 34. an air outlet mechanism.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In one embodiment, please refer to fig. 1-8, a gas extraction device for coal mine gas control comprises a filter box 1, a gas inlet pipe 5 is arranged at the bottom of the filter box 1, the gas inlet pipe 5 is a tubular structure with only an open lower end and is arranged on the bottom plate of the filter box 1 in an upward and downward direction, an adapter flange 6 convenient for connection is arranged at the lower end of the gas inlet pipe 5, the gas inlet pipe 5 is connected with a related gas pump through the adapter flange 6 or is directly connected with a related exhaust device, so that gas can enter the filter box 1 through the gas inlet pipe 5, a gas outlet pipe 14 is arranged on the side wall of the filter box 1, the gas outlet pipe 14 is open at two ends, and the gas outlet pipe 14 is communicated with the filter box 1, and the gas extraction device further comprises a gas inlet mechanism 33 and a gas outlet mechanism 34;
the air inlet mechanism 33 comprises an inclined air pipe 15 communicated with one end of the air inlet pipe 5 close to the center of the filter box 1, the inclined air pipe 15 is obliquely arranged towards the bottom of the filter box 1 from the opening at one end of the air inlet pipe 5, the inclined air pipe 15 is tubular with two open ends, the inclined air pipe 15 is obliquely arranged downwards, a flow distribution block 16 matched with the inclined air pipe 15 is arranged at the top of the air inlet pipe 5, the upper end of the air inlet pipe 5 is sealed, the flow distribution block 16 is arranged at the top end of the air inlet pipe 5, the flow distribution block 16 is triangular, so that air entering the air inlet pipe 5 can smoothly enter the inclined air pipe 15, a crushing assembly 7 for crushing air bubbles is arranged close to the open end of the inclined air pipe 15, the air entering the filter box 1 can be crushed through the crushing assembly 7, the contact with aqueous solution is more facilitated, and the crushing assembly 7 can be just arranged above the open end of the inclined air pipe 15, so that the gas can well contact with the crushing assembly 7;
air outlet mechanism 34, including the first tight pipe 23 that pushes up with 14 end sliding connection of outlet duct, rose box 1 fixed connection fixing base 24, fixing base 24 rotates and connects dwang 25, the outside distribution of dwang 25 has a plurality of filter discs 27 with the first tight pipe 23 complex that pushes up, the one end that rose box 1 was kept away from to dwang 25 rotates and connects swivel housing 28, be equipped with the second tight pipe 32 that pushes up with filter discs 27 complex on swivel housing 28, the axis collineation of second tight pipe 32 and first tight pipe 23 that pushes up, first tight pipe 23 that pushes up can slide left and right for outlet duct 14, set up fixing base 24 on rose box 1 top right side simultaneously, dwang 25 stretches out to the right side, the right side of dwang 25 has evenly distributed a plurality of fixed blocks 26 for the axle center of dwang 25, the end fixed connection filter discs 27 of fixed block 26, the both sides of filter discs 27 are provided with the recess, the size and the tight pipe 23 of first tight pipe 32 that pushes up and second push up cooperate, and the related sealing device is similar to a sealing ring, so that the first jacking pipe 23 and the second jacking pipe 32 are inserted into the grooves at two sides of the filter disc 27 to realize the sealing effect, meanwhile, the filter disc 27 with filter holes is arranged at the center of the filter disc 27, or the filter device such as filter paper is arranged at the center of the filter disc 27 to realize the secondary filtration treatment of the gas.
In one aspect of the present embodiment, the crushing assembly 7 includes a fixing rod 10 fixedly connected to the inner wall of the filtering box 1, a rotating head 11 is rotatably connected to one end of the fixing rod 10 close to the opening of the inclined air pipe 15, a crushing rod 12 is disposed on the outer wall of one side of the rotating head 11, and a spiral blade 13 is disposed on the other side of the rotating head 11. The dead lever 10 is from top to bottom towards the setting, 1 top of dead lever 10's upper end fixed connection rose box, the lower extreme of dead lever 10 rotates the upper end of connecting rotation head 11, the upper end of rotating head 11 has many to hit garrulous pole 12 for the axle center evenly distributed who rotates head 11, hit garrulous 12 level settings, and set up spiral leaf 13 in the below of rotating head 11, the bubble that rises can contact with spiral leaf 13, thereby promote spiral leaf 13 to rotate, spiral leaf 13 drives rotation head 11 and rotates, rotation head 11 drives and hits garrulous pole 12 and rotate, thereby hit the bubble through hitting garrulous pole 12 and break.
In the condition of this embodiment, the bottom of rose box 1 is equipped with toper bin outlet 2, and the tip of toper bin outlet 2 is equipped with row material pipe 3, and the middle part of arranging material pipe 3 is equipped with throttling assembly 19, arranges the tip of material pipe 3 and can dismantle the connection and deposit stub bar 4. The conical discharge opening 2 is arranged on two sides of the bottom of the filter box 1, and the conical discharge opening 2 is arranged downwards, so that solid impurities in the water solution can be deposited at the bottom of the filter box 1 and fall into the conical discharge opening 2 along with the action of gravity, and finally fall into the material storage head 4 along with the conical discharge opening 2 and the discharge pipe 3. And a throttling component 19 is arranged in the discharging pipe 3 to control the on-off of the discharging pipe 3, so that the material storing head 4 can be cleaned conveniently. The throttling component 19 comprises a rotating shaft 17 which is rotatably connected with the discharging pipe 3, and a blocking piece 18 which is matched with the inner wall of the discharging pipe 3 is arranged in the middle of the rotating shaft 17. Pivot 17 can drive separation blade 18 and rotate, and when separation blade 18 rotated the horizontality, separation blade 18 will arrange material pipe 3 and block up completely, and row material pipe 3 was closed this moment, can open stock head 4, and the solid impurity who will reserve stock head 4 inside discharges, realizes the clean effect of device, through threaded connection between stock head 4 and the row material pipe 3, convenient dismantlement under the prerequisite of assurance leakproofness.
In one aspect of this embodiment, the side wall of the filter box 1 is provided with a water inlet 8, and the height of the water inlet 8 is lower than the height of the connection between the inclined air pipe 15 and the air inlet pipe 5. The water inlet 8 is arranged in the middle of the left side wall and the right side wall of the filter tank 1. The end part of the water inlet 8 is detachably connected with a plug 9. That is to say that water inlet 8 highly is less than the upper end of gas tube 15, when moisturizing through water inlet 8 at one side, the water level of 1 inside rose box gradually rises, when the water level will cross gas tube 15 soon and enter into intake pipe 5, rivers can discharge through the water inlet 8 of opposite side to avoided rivers to enter into intake pipe 5 and polluted the air intake unit, prevented that relevant air pump from damaging.
In a case of this embodiment, one end of the outlet pipe 14 away from the filter box 1 is provided with a stop ring 20, one end of the first tightening pipe 23 close to the filter box 1 is provided with a clamp 21 slidably connected with the outlet pipe 14, and a first spring 22 is arranged between the clamp 21 and the stop ring 20. The first spring 22 is in a stretched state, and the first caulking tube 23 is pushed to the right side by the first spring 22, so that the first caulking tube 23 can be caulked to the left side of the filter disc 27. The rotating sleeve 28 is connected with a sliding plate 29 in a sliding manner, the sliding plate 29 is fixedly connected with the side wall of a second jacking pipe 32, a limiting plate 31 is arranged at the end part of the rotating sleeve 28, and a second spring 30 is arranged between the limiting plate 31 and the sliding plate 29. The second spring 30 is in a compressed state, and the second abutting pipe 32 is pushed by the second spring 30 to move to the left, so that the second abutting pipe 32 is pressed against the right side of the filter disc 27.
This embodiment is in the implementation process, at first place this device is stable, open the water inlet 8 of both sides, water supply in 8 to the device through the water inlet of one side, along with the gradual increase of water level submerge down tube 15's lower extreme and break up and stop adding water behind the subassembly 7, the water inlet 8 of both sides is sealed this moment, it connects second top compact pipe 32 with relevant detection device or with the gas appliance, be connected the intake pipe 5 of this device through adapter flange 6 and relevant air outlet means, air outlet means inside has certain atmospheric pressure and makes gas can enter into the inside of rose box 1 through intake pipe 5, or can set up the air pump in air outlet means's inside and provide atmospheric pressure, whole device can be normal work after the connection is accomplished, open air outlet means.
Gaseous along with intake pipe 5 upwards removes, the effect through reposition of redundant personnel piece 16 makes during gaseous trachea 15 that enters into both sides, the inside of entering into rose box 1 through the lower extreme opening of trachea 15, produce the bubble of different sizes, the bubble with smash the back of subassembly 7 contact, spiral leaf 13 rotates, pivoted spiral leaf 13 and smash pole 12 can be smashed big bubble into the tiny bubble and realize the effective contact with the inside liquid of rose box 1, the particulate matter that contains in the gas can be attached to the drop of water and is broken away from the deposit in the bottom of rose box 1 with gas gradually, realize prefilter's processing, accomplish prefilter's gas outlet duct 14 discharge through the top, and after the secondary filtration through filter disc 27, enter into relevant detection device or gas cell through second top tight pipe 32.
When cleaning the whole device, firstly cleaning the filter disc 27, separating the first jacking pipe 23 and the second jacking pipe 32 towards two sides, rotating the rotating rod 25, so that the other filter disc 27 rotates between the first jacking pipe 23 and the second jacking pipe 32, and due to the gravity action of the second jacking pipe 32, when the rotating rod 25 rotates, the second jacking pipe 32 can not rotate, loosening the first jacking pipe 23 and the second jacking pipe 32, under the action of the first spring 22 and the second spring 30, the first jacking pipe 23 and the second jacking pipe 32 jack the filter disc 27 again, and simultaneously closing the throttling component 19, opening the storage head 4, pouring out solid residues in the storage head 4, mounting the storage head 4 again and opening the throttling component 19, and at the moment, the whole device can be used continuously.
The inclined air pipes 15 are arranged on the two sides of the air inlet pipe 5, so that gas can enter the filter box 1 and can be contacted with liquid, the solid particle filtering effect is achieved, the inclined air pipes 15 are arranged in a downward inclined mode, the liquid in the filter box 1 cannot enter the air inlet pipe 5 to pollute related accessories, the material storage head 4 and the filter disc 27 of the whole device can be freely cleaned, the maintenance difficulty and the maintenance cost of the whole device are reduced, and the gas extraction device is suitable for popularization and use.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (9)
1. A gas extraction device for coal mine gas control comprises a filter box, wherein the bottom of the filter box is provided with a gas inlet pipe, and the side wall of the filter box is provided with a gas outlet pipe;
the air inlet mechanism comprises an inclined air pipe communicated with one end of the air inlet pipe close to the center of the filter box, an opening of the inclined air pipe, which is far away from one end of the air inlet pipe, is obliquely arranged towards the bottom of the filter box, and a crushing assembly for crushing bubbles is arranged close to the opening end of the inclined air pipe;
air outlet mechanism includes the tight pipe in first top with outlet duct tip sliding connection, rose box fixed connection fixing base, fixing base rotate to connect the dwang, and the dwang outside distributes and has a plurality ofly and the tight pipe complex filter disc in first top, the one end rotation connection rotation that the rose box was kept away from to the dwang is overlapped, is equipped with on the rotation sleeve and pushes up tight pipe with filter disc complex second, and the tight pipe in second top pushes up the axis collineation of tight pipe with first top.
2. The gas extraction device for coal mine gas control according to claim 1, wherein a diverter block fitted to the inclined tube is provided at a top of the gas inlet tube.
3. The gas extraction device for coal mine gas control as recited in claim 1, wherein the breaking component comprises a fixed rod fixedly connected with the inner wall of the filter box, one end of the fixed rod close to the opening of the inclined gas pipe is rotatably connected with a rotating head, one side of the rotating head is provided with the breaking rod on the outer wall, and the other side of the rotating head is provided with the spiral blade.
4. The gas extraction device for coal mine gas control as recited in claim 1, wherein the bottom of the filter box is provided with a conical discharge opening, the end part of the conical discharge opening is provided with a discharge pipe, the middle part of the discharge pipe is provided with a throttling component, and the end part of the discharge pipe is detachably connected with the material storage head.
5. The gas extraction device for coal mine gas control as recited in claim 4, wherein the throttling assembly comprises a rotating shaft rotatably connected with the discharge pipe, and a blocking piece matched with the inner wall of the discharge pipe is arranged in the middle of the rotating shaft.
6. The gas extraction device for coal mine gas control according to claim 1, wherein a water inlet is provided in a side wall of the filter box, and the height of the water inlet is lower than the height of a connection part of the inclined gas pipe and the gas inlet pipe.
7. The gas extraction device for coal mine gas control as recited in claim 6, wherein a plug is detachably connected to an end of the water inlet.
8. The gas extraction device for coal mine gas control as recited in claim 1, wherein an end of the outlet pipe remote from the filter box is provided with a retaining ring, an end of the first tightening pipe close to the filter box is provided with a chuck slidably connected with the outlet pipe, and a first spring is provided between the chuck and the retaining ring.
9. The gas extraction device for coal mine gas control according to claim 1, wherein a sliding plate is slidably connected to the rotating sleeve, the sliding plate is fixedly connected to a side wall of the second jacking pipe, a limiting plate is arranged at an end of the rotating sleeve, and a second spring is arranged between the limiting plate and the sliding plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210435423.0A CN114673548A (en) | 2022-04-24 | 2022-04-24 | Gas extraction device for coal mine gas prevention and control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210435423.0A CN114673548A (en) | 2022-04-24 | 2022-04-24 | Gas extraction device for coal mine gas prevention and control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114673548A true CN114673548A (en) | 2022-06-28 |
Family
ID=82080549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210435423.0A Withdrawn CN114673548A (en) | 2022-04-24 | 2022-04-24 | Gas extraction device for coal mine gas prevention and control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114673548A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117685039A (en) * | 2024-02-03 | 2024-03-12 | 山西山煤国源煤矿安全技术有限公司 | Coal seam gas extraction device and extraction method |
-
2022
- 2022-04-24 CN CN202210435423.0A patent/CN114673548A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117685039A (en) * | 2024-02-03 | 2024-03-12 | 山西山煤国源煤矿安全技术有限公司 | Coal seam gas extraction device and extraction method |
| CN117685039B (en) * | 2024-02-03 | 2024-04-12 | 山西山煤国源煤矿安全技术有限公司 | Coal seam gas extraction device and extraction method |
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Application publication date: 20220628 |