CN218150862U - Novel gas drainage drilling and hole sealing device - Google Patents
Novel gas drainage drilling and hole sealing device Download PDFInfo
- Publication number
- CN218150862U CN218150862U CN202222823340.7U CN202222823340U CN218150862U CN 218150862 U CN218150862 U CN 218150862U CN 202222823340 U CN202222823340 U CN 202222823340U CN 218150862 U CN218150862 U CN 218150862U
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- Prior art keywords
- hole sealing
- pipe
- sealing bag
- slip casting
- drilling
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- 238000007789 sealing Methods 0.000 title claims abstract description 84
- 238000005553 drilling Methods 0.000 title claims abstract description 23
- 238000000605 extraction Methods 0.000 claims description 16
- 239000011440 grout Substances 0.000 claims description 11
- 239000002002 slurry Substances 0.000 claims description 10
- 238000004880 explosion Methods 0.000 claims description 4
- 238000007569 slipcasting Methods 0.000 abstract description 23
- 239000011435 rock Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 239000012466 permeate Substances 0.000 abstract description 2
- 239000011148 porous material Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 16
- 238000005422 blasting Methods 0.000 description 6
- 239000003245 coal Substances 0.000 description 5
- 239000003566 sealing material Substances 0.000 description 4
- 238000004519 manufacturing process Methods 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
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 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
- 230000002265 prevention Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model discloses a novel gas drainage drilling hole sealing device, fix first hole sealing bag and second hole sealing bag on taking out the drainage pipe including taking out drainage pipe and interval, be connected through communicating pipe between first hole sealing bag and the second hole sealing bag, be provided with the blast valve on communicating pipe, be provided with the slip casting pipe on the first hole sealing bag, run through in the first hole sealing bag and be provided with the back grouting pipe, the regional slip casting pipe of drilling between the slip casting pipe of this novel gas drainage drilling hole sealing device will hole sealing bag and two hole sealing bags unites two into one, can carry out the slip casting to the hole sealing bag earlier during same pipeline slip casting, carry out the slip casting to the drilling region again, effectively avoid the slip casting order of making up to lead to the hole sealing failure, can adjust the exhaust velocity of back grouting pipe simultaneously, cooperate outside high pressure slip casting power supply, reach the hole sealing purpose of adjusting slip casting pressure, be convenient for the hole sealing condition adjustment slip casting pressure to the difference, make the pore wall material can effectively permeate the rock stratum and improve sealed effect.
Description
Technical Field
The utility model relates to a gas drainage technical field in the coal mining specifically is novel gas drainage drilling hole sealing device.
Background
Mine gas is a general term for various harmful gases mainly comprising methane, which are emitted from coal and rock in the production process of coal mines, and is a main natural factor seriously threatening the safety production of coal mines. Casualties and property loss caused by gas disasters are huge, so that the prevention of the gas disasters has important significance for the healthy and sustained development of the coal industry. At present, gas extraction is an important means for controlling gas in mine operation, and during the gas extraction process, a drill hole needs to be ensured to be tightly sealed, and the gas extraction device has a longer sealing length so as to ensure the gas extraction effect. The method comprises the steps of firstly grouting the two hole sealing bags to enable the two hole sealing bags to collide and block a drilled hole, and then grouting the drilled hole area between the two hole sealing bags to achieve the purpose of sealing, but the existing grouting mode is split grouting, namely the grouting pipe of the hole sealing bags and the grouting pipe of the drilled hole area between the two hole sealing bags are two independent pipelines, the pipelines are complicated, the sequence of grouting is easy to be confused, hole sealing failure is caused, the existing grouting mode cannot adjust grouting pressure, proper grouting pressure cannot be adjusted according to different hole wall properties of drilled holes, and hole sealing materials cannot effectively penetrate into rock stratum cracks to improve sealing effect.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome current defect, provide a novel gas drainage drilling hole sealing device, can effectively solve the problem in the background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel gas drainage drilling hole sealing device, fixes first hole sealing bag and second hole sealing bag on taking out the drainage pipe including taking out drainage pipe and interval, be connected through communicating pipe between first hole sealing bag and the second hole sealing bag, be provided with the blast valve on communicating pipe, be provided with the slip casting pipe on the first hole sealing bag, run through in the first hole sealing bag and be provided with the back grout pipe, the one end of back grout pipe is located between first hole sealing bag and the second hole sealing bag, and the other end is provided with the throttle valve.
As a preferred technical scheme of the utility model, the main part of blasting valve is less than the body of communicating pipe for breaking critical pressure, and the both ends of blasting valve are all connected with the communicating pipe both ends after cuting through the cramp strip.
As an optimized technical scheme of the utility model, be provided with the check valve on the slip casting pipe.
As a preferred technical scheme of the utility model, first hole sealing bag is cyclic annularly with second hole sealing bag, and the parcel is taking out and drawing when not slip casting and is adopting on the pipe.
As an optimal technical scheme of the utility model, the back-grouting pipe is binded on the slip casting pipe.
Compared with the prior art, the beneficial effects of the utility model are that: this novel gas drainage drilling hole sealing device will seal the hole bag the slip casting pipe and two regional slip casting pipes of drilling between the hole bag unite two into one, can carry out the slip casting to the hole bag earlier during same pipeline slip casting, carry out the slip casting to the drilling region again, effectively avoid making a mistake the slip casting order and lead to the hole sealing failure, the exhaust velocity of grout return pipe can be adjusted to the while, cooperate outside high-pressure slip casting power supply, reach the purpose of adjusting slip casting pressure, be convenient for adjust slip casting pressure to the drilling pore wall condition of difference, make the hole sealing material can effectively permeate the improvement sealed effect in the rock stratum crack.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the unfolding structure of the present invention;
fig. 3 is a schematic structural view of the explosion valve of the present invention;
FIG. 4 is a schematic view of the connection structure of the hole sealing bag and the extraction pipe of the utility model;
fig. 5 is a schematic view of the usage state of the present invention.
In the figure: 1 extraction pipe, 2 first hole sealing bags, 3 second hole sealing bags, 4 communicating pipes, 5 blasting valves, 6 slurry return pipes, 7 grouting pipes, 8 tightening strips, 9 air throttle valves and 10 one-way valves.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a novel gas extraction drilling hole sealing device comprises an extraction pipe 1, and a first hole sealing bag 2 and a second hole sealing bag 3 which are fixed on the extraction pipe 1 at intervals, wherein the first hole sealing bag 2 and the second hole sealing bag 3 are both annular and are wrapped on the extraction pipe 1 when no grouting is performed, the first hole sealing bag 2 and the second hole sealing bag 3 which are annularly wrapped on the extraction pipe 1 can be quickly unfolded and smoothly injected when slurry enters, the grouting speed is improved, the first hole sealing bag 2 and the second hole sealing bag 3 are connected through a communicating pipe 4, a blasting valve 5 is arranged on the communicating pipe 4, the main body of the blasting valve 5 is a pipe body with the fracture critical pressure lower than that of the communicating pipe 4, two ends of the blasting valve 5 are connected with two ends of the disconnected communicating pipe 4 through a hooping strip 8, and after the first hole sealing bag 2 and the second hole sealing bag 3 are fully injected with the slurry, the pressure in the communicating pipe 4 is continuously increased, when the pressure reaches the critical pressure of the blast valve 5, the blast valve 5 is broken, slurry enters a drill hole between the first hole sealing bag 2 and the second hole sealing bag 3 to seal the drill hole, a grouting pipe 7 is arranged on the first hole sealing bag 2, a one-way valve 10 is arranged on the grouting pipe 7 to avoid slurry return, an external grouting power source is used for grouting through the grouting pipe 7, during the grouting process, the first hole sealing bag 2 is filled with the first grouting power source, then the second hole sealing bag 3 is filled with the second grouting power source, the drilling area is grouted only after the first hole sealing bag 2 and the second hole sealing bag 3 are filled with the slurry, the failure of hole sealing caused by the wrong grouting sequence can be effectively avoided, a slurry return pipe 6 penetrates through the first hole sealing bag 2, the slurry return pipe 6 is bound on the grouting pipe 7 to effectively avoid the two pipelines from winding, the knotting is improved, one end of the slurry return pipe 6 is positioned between the first hole sealing bag 2 and the second hole sealing bag 3, the other end is provided with air throttle 9, when grouting, the grout return pipe 6 is used for discharging the air between the first hole sealing bag 2 and the second hole sealing bag 3, the grouting fluency is improved, after the grout is fully injected, the grout overflows from the end part, the sealing effect is achieved by binding the grout return pipe 6 after being folded, the air throttle 9 can adjust the exhaust speed of the grout return pipe, the aim of adjusting the grouting pressure is achieved by matching with an external high-pressure grouting power source, the grouting pressure can be conveniently adjusted according to different drilling hole wall conditions, when the drilling hole wall is loose, the hole sealing material can be permeated into a rock stratum crack by smaller grouting pressure, when the drilling hole wall is tight, the hole sealing material can be permeated into the rock stratum crack by larger grouting pressure, and the air throttle 9 plays a role in balancing the grouting pressure and the grouting fluency.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a novel gas drainage drilling hole sealing device, fixes first hole sealing bag (2) and second hole sealing bag (3) on adopting pipe (1) including adopting pipe (1) and interval, its characterized in that: the hole sealing device is characterized in that the first hole sealing bag (2) and the second hole sealing bag (3) are connected through a communicating pipe (4), an explosion valve (5) is arranged on the communicating pipe (4), a grouting pipe (7) is arranged on the first hole sealing bag (2), a grout return pipe (6) penetrates through the first hole sealing bag (2), one end of the grout return pipe (6) is located between the first hole sealing bag (2) and the second hole sealing bag (3), and an air throttle (9) is arranged at the other end of the grout return pipe.
2. The novel gas extraction drilling and sealing device according to claim 1, characterized in that: the main body of the explosion valve (5) is a pipe body with rupture critical pressure lower than that of the communicating pipe (4), and two ends of the explosion valve (5) are connected with two ends of the communicating pipe (4) after being cut off through the tightening strip (8).
3. The novel gas extraction drilling and sealing device according to claim 1, characterized in that: and a one-way valve (10) is arranged on the grouting pipe (7).
4. The novel gas extraction drilling and sealing device according to claim 1, characterized in that: the first hole sealing bag (2) and the second hole sealing bag (3) are both annular and are wrapped on the extraction pipe (1) when grouting is not performed.
5. The novel gas extraction drilling and sealing device according to claim 1, characterized in that: the slurry return pipe (6) is bound on the grouting pipe (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222823340.7U CN218150862U (en) | 2022-10-26 | 2022-10-26 | Novel gas drainage drilling and hole sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222823340.7U CN218150862U (en) | 2022-10-26 | 2022-10-26 | Novel gas drainage drilling and hole sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218150862U true CN218150862U (en) | 2022-12-27 |
Family
ID=84571269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222823340.7U Active CN218150862U (en) | 2022-10-26 | 2022-10-26 | Novel gas drainage drilling and hole sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218150862U (en) |
-
2022
- 2022-10-26 CN CN202222823340.7U patent/CN218150862U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: New type of gas extraction drilling and sealing device Granted publication date: 20221227 Pledgee: Huangshong branch of rural credit cooperative association of Pingba District, Anshun City Pledgor: Guizhou Shipu mining new material Co.,Ltd. Registration number: Y2024980025079 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |