CN105715230A - Middle slurry-permeating type single-bag grouting hole sealing device and hole sealing method thereof - Google Patents
Middle slurry-permeating type single-bag grouting hole sealing device and hole sealing method thereof Download PDFInfo
- Publication number
- CN105715230A CN105715230A CN201610215651.1A CN201610215651A CN105715230A CN 105715230 A CN105715230 A CN 105715230A CN 201610215651 A CN201610215651 A CN 201610215651A CN 105715230 A CN105715230 A CN 105715230A
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- grouting
- hole
- hole sealing
- grouting pipe
- tube
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Links
- 238000007789 sealing Methods 0.000 title claims abstract description 81
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000002002 slurry Substances 0.000 claims abstract description 21
- 238000007569 slipcasting Methods 0.000 claims description 36
- 238000002347 injection Methods 0.000 claims description 24
- 239000007924 injection Substances 0.000 claims description 24
- 239000003245 coal Substances 0.000 claims description 22
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 238000005086 pumping Methods 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 238000000605 extraction Methods 0.000 claims description 11
- 210000004911 serous fluid Anatomy 0.000 claims description 11
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 238000005553 drilling Methods 0.000 claims description 8
- 239000004744 fabric Substances 0.000 claims description 7
- 239000004568 cement Substances 0.000 claims description 6
- 239000011440 grout Substances 0.000 claims description 6
- 238000005266 casting Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 230000035699 permeability Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 2
- 239000003818 cinder Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- IXSZQYVWNJNRAL-UHFFFAOYSA-N etoxazole Chemical compound CCOC1=CC(C(C)(C)C)=CC=C1C1N=C(C=2C(=CC=CC=2F)F)OC1 IXSZQYVWNJNRAL-UHFFFAOYSA-N 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000004047 hole gas Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
Classifications
-
- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
-
- 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
Landscapes
- 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)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention relates to a middle slurry-permeating type single-bag grouting hole sealing device and a hole sealing method thereof. The middle slurry-permeating type single-bag grouting hole sealing device comprises a recyclable grouting pipe, a grouting pipe joint, a front gas extracting pipe, a rear gas extracting pipe, a flow guiding device, a dual-hole pipe, a pressure control valve, an expansion bushing and an expansion bag, wherein the recyclable grouting pipe is communicated with a grouting channel of the flow guiding device, the front gas extracting pipe is sleeved by the hole sealing device through the flow guiding device in the use process, the hole sealing device is grouted through the recyclable grouting pipe, and the expansion bushing and the expansion bag expand after being filled with slurry so as to block drill holes. According to the middle slurry-permeating type single-bag grouting hole sealing device, the relatively effective grouting hole sealing of the drill holes in a hole sealing segment can be realized, and the formation and the development of air-leaking fractures in the periphery of the drill holes of the hole sealing segment can be well prevented. By virtue of the hole sealing method of the middle slurry-permeating type single-bag grouting hole sealing device, high stress regions are formed on the periphery of the drill holes of the hole sealing segment, so that the air permeability of mediums on the periphery of the drill holes of the hole sealing segment is reduced, and the effective grouting hole sealing of the drill holes of the hole sealing segment is realized.
Description
Technical field
The invention belongs to coal mine gas extraction drill hole technical field, particularly relate to and in the middle part of one, ooze paddle list pouch injection hole sealing device and method for sealing thereof.
Background technology
Underground coal mine this coal bed gas extraction drilling depth is typically in 50 meters of even hundreds of meters, the a certain section of boring of aperture certain distance of only adjusting the distance carries out sealing of hole, the method being difficult to adopt direct slip casting except inclined drill carries out sealing of hole, and the sealing of hole of extraction borehole divides permanent sealing of hole and provisional sealing of hole.At present, the permanent sealing of hole of known coal bed gas extraction boring is using polyurathamc, foam cement and other expanded material as sealing material, " cement hole sealing device " (ZL90227075.3) of early stage no longer adopts, direct boring method of holing is only applicable to inclined drill, domestic current commonly used blown polyurethane materials sealing of hole.At present, the provisional sealing of hole of known coal-face firedamp taking-out discharging drilling adopts reusable machinery hole sealing device sealing of hole, if patent name is " down-hole gas sucking releasing inflation bag hole sealing device " (ZL94209078.0), gum cover expansion type " coal rock layer drilling and sealing device " (ZL200420010782.9) etc..At present, patent name has all got good sealing of hole effect for " bag type paste injection hole sealing device and method for sealing thereof " (ZL200710054384.5) and " shunting-type grouting plugging device for gas extraction center and method for sealing thereof " (ZL201110120920.3), but it is as in the release of coal body Elastic latent energy and coal seam the reduction of gas pressure, boring is made around to grow gradually, expand in space, coal bed drilling sealing of hole cannot be made tight, gas leak phenomenon is had to produce, it is difficult to keep grouting pressure, it is impossible to reach desirable sealing of hole effect.Additionally, the difference of different coal mine underground coal bed geological conditions, the phenomenons such as collapse hole often occur, cause that the hole sealing device being relatively large in diameter cannot insert in coal bed drilling smoothly, these all exert a certain influence to sealing of hole.And hole sealing device before is all double; two pouches, processing more complicated, cost is of a relatively high.
Summary of the invention
The present invention is to solve weak point of the prior art, it is provided that the boring of sealing of hole section is implemented more effective injection hole sealing, better prevented the sealing of hole section boring generation in gas leakage crack around and the middle part of development from oozing paddle list pouch injection hole sealing device and method for sealing thereof by a kind of being capable of.
For solving above-mentioned technical problem, the present invention adopts the following technical scheme that paddle list pouch injection hole sealing device is oozed at middle part, including recyclable Grouting Pipe, Grouting Pipe joint, front gas pumping pipe, after gas drainage tube, drainage system, double-hole tube and expansion bushing, double-hole tube front end is connected by drainage system with front gas pumping pipe rear end, and double-hole tube rear end and after gas drainage tube front end are by rear clamp connection；Diplopore in double-hole tube respectively slip casting passage and extraction passage, extraction passage rear and front end connects with front gas pumping pipe and after gas drainage tube respectively, expansion bushing is cylindrical and inner hollow, expansion bushing is evenly arranged with several aerofluxuss and oozes slurry hole, aerofluxus oozes slurry hole along the circumferential of expansion bushing surface and axially evenly distributed, expansion bushing outer cover is provided with expansion pouch, the front edge expanding pouch and expansion bushing is sealed on double-hole tube excircle by front steel loop compression, the back edge expanding pouch and expansion bushing is sealed on after gas drainage tube excircle by rear steel loop compression, drainage system is coaxial to be located at outside front gas pumping pipe, drainage system front end is connected with recyclable Grouting Pipe rear end by Grouting Pipe joint, drainage system rear end connects with the slip casting channel front portion of double-hole tube, slip casting passage in double-hole tube offers grout outlet inside expansion pouch；The slip casting passage of double-hole tube is provided with pressure-control valve, and pressure-control valve is between drainage system and front steel loop.
Drainage system includes front clip and is located at the drainage tube outside front clip, the front end of drainage tube is provided with the slip casting connector being connected with Grouting Pipe joint, drainage tube rear end and front clip sidepiece are correspondingly provided with and the stock inlet of slip casting channel connection, and stock inlet is positioned at front steel loop front.
Being provided with pin-and-hole on drainage tube in left-right direction, Grouting Pipe joint rear end is plugged in drainage tube interior and by being plugged in pin-and-hole shear pin and drainage tube and is sealedly and fixedly connected；Grouting Pipe joint front end is plugged in recyclable Grouting Pipe, and recyclable Grouting Pipe rear portion is tightly connected with Grouting Pipe joint compression by clamping sleeve.
Rear and front end in the slip casting passage of double-hole tube is equipped with leak stopping cement or plugging block.
After gas drainage tube rear end is connected to screen cloth pipe.
The method for sealing of paddle list pouch injection hole sealing device is oozed at middle part, comprises the following steps:
(1), in the rear end of after gas drainage tube connecting screen cloth pipe, the Grouting Pipe joint recyclable Grouting Pipe connected inserts in the slip casting connector of drainage tube, shear pin is inserted in pin-and-hole and fixes Grouting Pipe joint；
(2), middle part is oozed paddle list pouch injection hole sealing device and inserts, together with recyclable Grouting Pipe, the hole sealing depth that coal bed drilling is suitable；
(3), the front end of recyclable Grouting Pipe is connected with external grouting pump, and checks that whether the Pressure gauge on grouting pump and grouting pump is normal, prepare grouting serous fluid；
(4), the pulp-inlet pipe of grouting pump is inserted in grouting serous fluid, start grouting pump and proceed by injection hole sealing, grouting pressure is stepped up, grouting serous fluid is via grouting pump recyclable Grouting Pipe Grouting Pipe joint drainage tube stock inlet slip casting passage grout outlet expansion bushing, and expansion bushing enters slurry and expands, and aerofluxus is oozed slurry hole and increased, fraction slurries oozes slurry hole by aerofluxus and enters expansion pouch, penetrate into boring cracks in coal seam around, when reaching predetermined grouting pressure, close grouting pump and stop slip casting；
(5), firmly pulling out recyclable Grouting Pipe, shear pin is cut off by Grouting Pipe joint, reclaims casting head and recyclable Grouting Pipe, and injection hole sealing operation is complete, and Grouting Pipe joint, recyclable Grouting Pipe and grouting pump are carried out, and uses when sealing of hole next time.
Adopting technique scheme, the present invention has the following technical effect that
1, the present invention adopts and integrates extraction passage and the double-hole tube of slip casting passage, enormously simplify the structure of hole sealing device, overcome and prior art needs additionally arrange slip casting passage, volume shortcoming big, baroque, it is adapted to different coal mine underground coal bed geological conditions, convenient operation, improve work efficiency, be capable of sealing of hole section is holed more effective slip casting closure, more effectively avoid generation and the development in sealing of hole section boring rib crack around, and minimum coalmass crevasse also can be carried out filling so that sealing of hole effect reaches the best.
2, the present invention adopts and arranges expansion bushing inside expansion pouch, expansion bushing can support fixed expansion pouch, expansion bushing is provided with aerofluxus and oozes slurry hole, grouting serous fluid can ooze slurry hole from aerofluxus and enter into expansion pouch, after gas drainage tube rear end is connected to screen cloth pipe, it is possible to avoid the impurity such as the rubble coal cinder in boring to enter.The structural material of the present invention and injecting paste material intensity all do not affect coal-winning machine coal cutting, and will not produce spark during coal cutting operation, it is possible to efficient, safe exploitation.
3, the slip casting passage two ends of the present invention all adopt leak stopping cement or plugging block to block, grouting serous fluid is avoided to spill, guarantee that grouting pressure keeps constant, promote sealing of hole effect, the fixing Grouting Pipe joint of shear pin is adopted in drainage tube, after injection hole sealing, firmly extract recyclable Grouting Pipe and Grouting Pipe joint, reusable after cleaning.
4, pressure-control valve can control to expand grouting pressure in pouch, ensure simultaneously and expand pouch safety, when expanding the setting pressure that pouch grouting pressure reaches pressure-control valve, pressure-control valve is opened, play relief valve effect, prevent grouting pressure in expansion pouch too high and cause that expanding pouch breaks.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the enlarged drawing at A place in Fig. 1；
Fig. 3 is the structural representation of drainage system in Fig. 1；
Fig. 4 is B-B sectional view in Fig. 3.
Detailed description of the invention
As Figure 1-Figure 4, paddle list pouch injection hole sealing device is oozed at the middle part of the present invention, including recyclable Grouting Pipe 1, Grouting Pipe joint 2, front gas pumping pipe 3, after gas drainage tube 4, drainage system 5, double-hole tube 6 and expansion bushing 7, double-hole tube 6 front end is connected by drainage system 5 with front gas pumping pipe 3 rear end, and double-hole tube 6 rear end is connected by rear clip 18 with after gas drainage tube 4 front end；Diplopore in double-hole tube 6 respectively slip casting passage 10 and extraction passage 11, extraction passage 11 rear and front end connects with front gas pumping pipe 3 and after gas drainage tube 4 respectively, expansion bushing 7 is cylindrical and inner hollow, expansion bushing 7 is evenly arranged with several aerofluxuss and oozes slurry hole 12, circumferential and axially evenly distributed along expansion bushing 7 surface of slurry hole 12 is oozed in aerofluxus, expansion bushing 7 outer cover is provided with expansion pouch 8, the front edge expanding pouch 8 and expansion bushing 7 is sealed on double-hole tube 6 excircle by front steel loop 14 compression, the back edge expanding pouch 8 and expansion bushing 7 is sealed on after gas drainage tube 4 excircle by rear steel loop 15 compression, drainage system 5 is coaxial to be located at outside front gas pumping pipe 3, drainage system 5 front end is connected with recyclable Grouting Pipe 1 rear end by Grouting Pipe joint 2, drainage system 5 rear end connects with slip casting passage 10 front portion of double-hole tube 6, the slip casting passage 10 of double-hole tube 6 offers grout outlet 17 inside expansion pouch 8；The slip casting passage 10 of double-hole tube 6 is provided with pressure-control valve 19, and pressure-control valve 19 is between drainage system 5 and front steel loop 14.
Drainage system 5 includes front clip 9 and is located at the drainage tube 5-1 outside front clip 9, the front end of drainage tube 5-1 is provided with the slip casting connector 5-2 being connected with Grouting Pipe joint 2, drainage tube 5-1 rear end and front clip 9 sidepiece are correspondingly provided with the stock inlet 5-3 connected with slip casting passage 10, stock inlet 5-3 and are positioned at front steel loop 14 front.
Being provided with pin-and-hole on drainage tube 5-1 in left-right direction, Grouting Pipe joint 2 rear end is plugged in drainage tube 5-1 and is sealedly and fixedly connected with drainage tube 5-1 by the shear pin 20 being plugged in pin-and-hole；Grouting Pipe joint 2 front end is plugged in recyclable Grouting Pipe 1, and recyclable Grouting Pipe 1 rear portion is tightly connected with Grouting Pipe joint 2 compression by clamping sleeve.
Rear and front end in the slip casting passage 10 of double-hole tube 6 is equipped with leak stopping cement or plugging block 13.
After gas drainage tube 4 rear end is connected to screen cloth pipe.
Paddle slip-casting hole-sealing method is oozed at the middle part of the present invention, comprises the following steps:
(1), in the rear end of after gas drainage tube 4 connect screen cloth pipe, the Grouting Pipe joint 2 that recyclable Grouting Pipe 1 connects is inserted in the slip casting connector 5-2 of drainage tube 5-1, shear pin 20 is inserted pin-and-hole is fixed Grouting Pipe joint 2；
(2), middle part is oozed paddle list pouch injection hole sealing device and inserts, together with recyclable Grouting Pipe 1, the hole sealing depth that coal bed drilling is suitable；
(3), the front end of recyclable Grouting Pipe 1 is connected with external grouting pump, and checks that whether the Pressure gauge on grouting pump and grouting pump is normal, prepare grouting serous fluid,；
(4), the pulp-inlet pipe of grouting pump is inserted in grouting serous fluid, start grouting pump and proceed by injection hole sealing, grouting pressure is stepped up, grouting serous fluid is via grouting pump recyclable Grouting Pipe 1 Grouting Pipe joint 2 drainage system 5 stock inlet 5-3 slip casting passage 10 grout outlet 17 expansion bushing 7, expansion bushing 7 enters slurry and expands, aerofluxus is oozed slurry hole 12 and is increased, fraction slurries oozes slurry hole by aerofluxus and enters expansion pouch 8, penetrate into boring cracks in coal seam around, when reaching predetermined grouting pressure, close grouting pump and stop slip casting；
(5), firmly pulling out recyclable Grouting Pipe 1, shear pin 20 is cut off by Grouting Pipe joint 2, reclaims casting head and recyclable Grouting Pipe 1, and injection hole sealing operation is complete, and Grouting Pipe joint 2, recyclable Grouting Pipe 1 and grouting pump are carried out, and uses when sealing of hole next time.
Above example is only in order to illustrative not limiting technical scheme, although the present invention being described in detail with reference to above-described embodiment, it will be understood by those within the art that: still the present invention can be modified or equivalent replacement, without deviating from any modification or partial replacement of the spirit and scope of the present invention, it all should be encompassed in the middle of scope of the presently claimed invention.
Claims (6)
1. in the middle part of, ooze paddle list pouch injection hole sealing device, it is characterized in that: include recyclable Grouting Pipe, Grouting Pipe joint, front gas pumping pipe, after gas drainage tube, drainage system, double-hole tube and expansion bushing, double-hole tube front end is connected by drainage system with front gas pumping pipe rear end, and double-hole tube rear end and after gas drainage tube front end are by rear clamp connection；Diplopore in double-hole tube respectively slip casting passage and extraction passage, extraction passage rear and front end connects with front gas pumping pipe and after gas drainage tube respectively, expansion bushing is cylindrical and inner hollow, expansion bushing is evenly arranged with several aerofluxuss and oozes slurry hole, aerofluxus oozes slurry hole along the circumferential of expansion bushing surface and axially evenly distributed, expansion bushing outer cover is provided with expansion pouch, the front edge expanding pouch and expansion bushing is sealed on double-hole tube excircle by front steel loop compression, the back edge expanding pouch and expansion bushing is sealed on after gas drainage tube excircle by rear steel loop compression, drainage system is coaxial to be located at outside front gas pumping pipe, drainage system front end is connected with recyclable Grouting Pipe rear end by Grouting Pipe joint, drainage system rear end connects with the slip casting channel front portion of double-hole tube, slip casting passage in double-hole tube offers grout outlet inside expansion pouch；The slip casting passage of double-hole tube is provided with pressure-control valve, and pressure-control valve is between drainage system and front steel loop.
2. paddle list pouch injection hole sealing device is oozed at middle part according to claim 1, it is characterized in that: drainage system includes front clip and is located at the drainage tube outside front clip, the front end of drainage tube is provided with the slip casting connector being connected with Grouting Pipe joint, drainage tube rear end and front clip sidepiece are correspondingly provided with and the stock inlet of slip casting channel connection, and stock inlet is positioned at front steel loop front.
3. paddle list pouch injection hole sealing device is oozed at middle part according to claim 2, it is characterized in that: be provided with pin-and-hole on drainage tube in left-right direction, Grouting Pipe joint rear end is plugged in drainage tube interior and by being plugged in pin-and-hole shear pin and drainage tube and is sealedly and fixedly connected；Grouting Pipe joint front end is plugged in recyclable Grouting Pipe, and recyclable Grouting Pipe rear portion is tightly connected with Grouting Pipe joint compression by clamping sleeve.
4. paddle list pouch injection hole sealing device is oozed at middle part according to claim 1 and 2, it is characterised in that: the rear and front end in the slip casting passage of double-hole tube is equipped with leak stopping cement or plugging block.
5. paddle list pouch injection hole sealing device is oozed at middle part according to claim 3, it is characterised in that: after gas drainage tube rear end is connected to screen cloth pipe.
6. the method for sealing of paddle list pouch injection hole sealing device is oozed at middle part according to claim 5, it is characterised in that: comprise the following steps:
(1), in the rear end of after gas drainage tube connecting screen cloth pipe, the Grouting Pipe joint recyclable Grouting Pipe connected inserts in the slip casting connector of drainage tube, shear pin is inserted in pin-and-hole and fixes Grouting Pipe joint；
(2), middle part is oozed paddle list pouch injection hole sealing device and inserts, together with recyclable Grouting Pipe, the hole sealing depth that coal bed drilling is suitable；
(3), the front end of recyclable Grouting Pipe is connected with external grouting pump, and checks that whether the Pressure gauge on grouting pump and grouting pump is normal, prepare grouting serous fluid；
(4), the pulp-inlet pipe of grouting pump is inserted in grouting serous fluid, start grouting pump and proceed by injection hole sealing, grouting pressure is stepped up, grouting serous fluid is via grouting pump recyclable Grouting Pipe Grouting Pipe joint drainage tube stock inlet slip casting passage grout outlet expansion bushing, and expansion bushing enters slurry and expands, and aerofluxus is oozed slurry hole and increased, fraction slurries oozes slurry hole by aerofluxus and enters expansion pouch, penetrate into boring cracks in coal seam around, when reaching predetermined grouting pressure, close grouting pump and stop slip casting；
(5), firmly pulling out recyclable Grouting Pipe, shear pin is cut off by Grouting Pipe joint, reclaims casting head and recyclable Grouting Pipe, and injection hole sealing operation is complete, and Grouting Pipe joint, recyclable Grouting Pipe and grouting pump are carried out, and uses when sealing of hole next time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610215651.1A CN105715230B (en) | 2016-04-08 | 2016-04-08 | Ooze paddle list pouch injection hole sealing device and its method for sealing in middle part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610215651.1A CN105715230B (en) | 2016-04-08 | 2016-04-08 | Ooze paddle list pouch injection hole sealing device and its method for sealing in middle part |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105715230A true CN105715230A (en) | 2016-06-29 |
| CN105715230B CN105715230B (en) | 2018-04-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610215651.1A Expired - Fee Related CN105715230B (en) | 2016-04-08 | 2016-04-08 | Ooze paddle list pouch injection hole sealing device and its method for sealing in middle part |
Country Status (1)
| Country | Link |
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| CN (1) | CN105715230B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107939333A (en) * | 2018-01-10 | 2018-04-20 | 河南理工大学 | Multistage pressure-bearing type osmosis type method for sealing and device |
| CN108150127A (en) * | 2018-02-13 | 2018-06-12 | 安徽佳泰矿业科技有限公司 | Mine gas extraction drilling and sealing device and method for sealing |
| CN110056327A (en) * | 2019-04-29 | 2019-07-26 | 中煤科工集团西安研究院有限公司 | A kind of multichannel hole packer, sealing of hole component and automatic hole sealing method |
| CN110130852A (en) * | 2019-05-17 | 2019-08-16 | 河南理工大学 | Wear formula list pouch secondary grouting hole sealing device and method for sealing |
| CN110159224A (en) * | 2019-05-17 | 2019-08-23 | 河南理工大学 | Three pouches block integral type hole sealing device and method for sealing |
| CN110159226A (en) * | 2019-06-19 | 2019-08-23 | 贵州盘江精煤股份有限公司 | A kind of gas control provided pipe fast plugging device |
| CN111561291A (en) * | 2020-05-06 | 2020-08-21 | 太原理工大学 | Double-layer extrusion type hole sealing device and method for gas extraction drill hole |
| CN111927527A (en) * | 2020-08-12 | 2020-11-13 | 宿州市金鼎安全技术股份有限公司 | Quick gas drilling and extraction device |
| CN112943158A (en) * | 2021-03-12 | 2021-06-11 | 河南理工大学 | Special-shaped grouting flow guide joint for multifunctional gas extraction hole sealing device |
| CN113107419A (en) * | 2021-05-07 | 2021-07-13 | 永城煤电控股集团有限公司 | Coal mine drilling and hole sealing device |
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Cited By (14)
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| WO2019137073A1 (en) * | 2018-01-10 | 2019-07-18 | 河南理工大学 | Multi-stage pressure bearing permeable hole sealing method and device |
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| CN108150127B (en) * | 2018-02-13 | 2024-03-19 | 安徽佳泰矿业科技有限公司 | Hole sealing device and hole sealing method for mine gas extraction drilling |
| CN110056327A (en) * | 2019-04-29 | 2019-07-26 | 中煤科工集团西安研究院有限公司 | A kind of multichannel hole packer, sealing of hole component and automatic hole sealing method |
| CN110056327B (en) * | 2019-04-29 | 2021-09-10 | 中煤科工集团西安研究院有限公司 | Multi-channel hole sealing device, hole sealing assembly and automatic hole sealing method |
| CN110130852B (en) * | 2019-05-17 | 2021-08-27 | 河南理工大学 | Sleeve-through type single-bag secondary grouting hole sealing device and hole sealing method |
| CN110130852A (en) * | 2019-05-17 | 2019-08-16 | 河南理工大学 | Wear formula list pouch secondary grouting hole sealing device and method for sealing |
| CN110159224A (en) * | 2019-05-17 | 2019-08-23 | 河南理工大学 | Three pouches block integral type hole sealing device and method for sealing |
| CN110159226A (en) * | 2019-06-19 | 2019-08-23 | 贵州盘江精煤股份有限公司 | A kind of gas control provided pipe fast plugging device |
| CN111561291A (en) * | 2020-05-06 | 2020-08-21 | 太原理工大学 | Double-layer extrusion type hole sealing device and method for gas extraction drill hole |
| CN111927527A (en) * | 2020-08-12 | 2020-11-13 | 宿州市金鼎安全技术股份有限公司 | Quick gas drilling and extraction device |
| CN112943158A (en) * | 2021-03-12 | 2021-06-11 | 河南理工大学 | Special-shaped grouting flow guide joint for multifunctional gas extraction hole sealing device |
| CN113107419A (en) * | 2021-05-07 | 2021-07-13 | 永城煤电控股集团有限公司 | Coal mine drilling and hole sealing device |
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