CN105888603B - Coal mine gas extraction borehole rapid hole sealing device and application method - Google Patents
Coal mine gas extraction borehole rapid hole sealing device and application method Download PDFInfo
- Publication number
- CN105888603B CN105888603B CN201610227891.3A CN201610227891A CN105888603B CN 105888603 B CN105888603 B CN 105888603B CN 201610227891 A CN201610227891 A CN 201610227891A CN 105888603 B CN105888603 B CN 105888603B
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- sealing
- hole
- floral tube
- drainage pipe
- hole material
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- 238000007789 sealing Methods 0.000 title claims abstract description 161
- 239000003245 coal Substances 0.000 title claims abstract description 38
- 238000000605 extraction Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000011799 hole material Substances 0.000 claims abstract description 155
- 238000003756 stirring Methods 0.000 claims abstract description 28
- 238000000926 separation method Methods 0.000 claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 claims abstract description 7
- 238000005553 drilling Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000013019 agitation Methods 0.000 claims description 4
- 238000007596 consolidation process Methods 0.000 claims description 3
- 239000013013 elastic material Substances 0.000 claims description 3
- 238000011017 operating method Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 9
- 239000010410 layer Substances 0.000 description 15
- 238000005516 engineering process Methods 0.000 description 8
- 230000035484 reaction time Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 210000002445 nipple Anatomy 0.000 description 4
- 238000005086 pumping Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 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)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Earth Drilling (AREA)
Abstract
A kind of coal mine gas extraction borehole rapid hole sealing device and application method, device includes gas drainage pipe, interior floral tube, outer floral tube and sealing of hole material, gas drainage pipe is rotatable through interior floral tube, outer floral tube is slidably bushed in outside interior floral tube, the first sealing of hole material and the second sealing of hole material are equipped between interior floral tube and gas drainage pipe, first sealing of hole material and the second sealing of hole material realize the separation under original state by separate layer, the outer rim of the gas drainage pipe is equipped at intervals with multiple fan-shaped stirring sheets, to pass through the rotation process of gas drainage pipe, fan-shaped stirring sheet is driven to rotate, cut through separate layer, drive first, second sealing of hole material uniformly mixes, and expansion reaction occurs, interior floral tube, outer floral tube is the pvc pipe that surface is covered with array-like hole, the floral tube opened after the closing and sliding of original state can be located at；The configuration of the present invention is simple as a result, easy to operate, collection pore-sealing liquid, block head and drainage tube one, effect more, are applicable in more extensive.
Description
Technical field
The present invention relates to the technical field of coal mine underground coal bed mash gas pumping drilling sealing of hole more particularly to a kind of underground coal mines
Mash gas pumping drilling rapid hole sealing device and application method.
Background technique
By the way that existing hole sealing technology investigation and research, the hole sealing technology currently used both at home and abroad mainly has mechanical cementing
Mortar sealing of hole, hole packer sealing of hole, polyurethane resin sealing of hole, capsule sealing of hole, " a two stifled notes " sealing of hole etc..The prior art is theoretically
The gas density for analyzing the tight drilling extraction of its sealing should be close to 100%, and the concentration of the extraction gas of China's drainage from coal seam
Averagely less than 20%, extraction negative pressure is also universal lower, and the gas density of the higher extraction of negative pressure is lower.Thus infer existing envelope
Hole technology is far from reaching sealing isolation effect.Trace it to its cause is that existing hole sealing technology is primarily present operating procedure complexity, labor
The problems such as fatigue resistance is big, at high cost, sealing of hole is not in place.Operating technology personnel are in the construction process far from the sealing of hole for reaching theory
Technique requirement, especially must further increase cost, the amount of labour and behaviour by outer power-equipment when carrying out pore-sealing liquid injection
Make difficulty.Additionally by research it can be found that existing hole sealing device mainly uses the hole-sealing technology of " a two stifled notes ", by changing
Become plug leakproofness, replace or improve the performance of existing pore-sealing liquid, by external force equipment provide pressure injection means into
Row sealing of hole.Its whole pore-sealing liquid and hole sealing device are still discrete state, and integrated operation requires height, and construction is complicated, and scene is difficult to reach
To the requirement of theoretical sealing of hole.Therefore, mash gas pumping drilling is completed in underground with needing easy, quick, stable, economic, the low amount of labour
Hole sealing device.The present invention proposes that a kind of suitable fire damp sealing of hole for collecting pore-sealing liquid, block head and drainage tube one quickly seals
Aperture apparatus and application method.
For this purpose, designer of the invention, in view of drawbacks described above, by concentrating on studies and designing, synthesis is engaged in for many years for a long time
The experience and achievement of related industry, researching and designing go out a kind of coal mine gas extraction borehole rapid hole sealing device and user
Method, to overcome drawbacks described above.
Summary of the invention
The purpose of the present invention is to provide a kind of coal mine gas extraction borehole rapid hole sealing device and application method,
Structure is simple, easy to operate, and collection pore-sealing liquid, block head and drainage tube one, effect more, are applicable in more extensive.
To solve the above problems, the invention discloses a kind of coal mine gas extraction borehole rapid hole sealing devices, including
Gas drainage pipe, interior floral tube, outer floral tube and sealing of hole material, it is characterised in that:
The gas drainage pipe is rotatable through interior floral tube, and the outer floral tube is slidably bushed in outside interior floral tube,
Circular accommodating space is formed between the interior floral tube and gas drainage pipe, and the first sealing of hole material is respectively equipped in accommodating space
With the second sealing of hole material, the first sealing of hole material and the second sealing of hole material realize the separation under original state by separate layer, described watt
The outer rim of this drainage tube is equipped at intervals with multiple fan-shaped stirring sheets, to drive sector to stir by the rotation process of gas drainage pipe
It mixes piece to rotate, cuts through separate layer, drive the first, second sealing of hole material uniformly to mix, and expansion reaction occurs；
The interior floral tube, outer floral tube are the pvc pipe that surface is covered with array-like hole, in the initial state, outer floral tube
Be bushed in outside interior floral tube and mutual hole and misalignment, accommodating space realized and is closed, and outer floral tube relatively in
After floral tube sliding, the hole of the two is aligned, and forms the channel of water conservancy diversion sealing of hole material, and accommodating space is in the open state.
Wherein: the opposite of outer floral tube slides through screw nut switch realization, and the screw nut switch is fixed at the outer of interior floral tube
On edge external screw thread, front end abuts against the rear end of outer floral tube.
Wherein: the back segment of the gas drainage pipe is equipped with whisk handle, and the whisk handle, which realizes, can be manually rotated, and promote
Fan-shaped stirring sheet rotation partition sealing of hole material interlayer.
Wherein: being additionally provided with two sealing of hole pouches, the sealing of hole pouch is made of elastic material, and pouch passes through separate layer reality
Separation under existing original state drives fan-shaped stirring sheet stirring, cuts through separate layer, promote sealing of hole under the agitation of whisk handle
Pouch realizes rapid expanding function, realizes the effect of sealing of hole both ends block head.
Wherein: the envelope material reaction time in the sealing of hole pouch is very fast, and between 10~20s, expansion multiple is 20 times；It is interior
The first, second sealing of hole material reaction time in outer floral tube is slower, and between 60~300s, expansion multiple is 10 times, and intensity wants high
Expect in envelope.
A kind of application method of coal mine gas extraction borehole rapid hole sealing device as described above is also disclosed, is grasped
It is as step:
Step 1: pretreatment operation determines required inside and outside floral tube length according to the depth of coal seam internal drilling；
Step 2: carrying out Stirring to gas drainage pipe, drives fan-shaped stirring sheet to rotate and cut through separate layer, promotees
It mixes the first, second sealing of hole material uniformly, and smoothly expands reaction；
Step 3: after 10~20s, realizing that both ends block plug, promotes inside and outside floral tube generation relative movement to be switched to and beats
The floral tube mode opened, the mixed first, second sealing of hole material of water conservancy diversion to coal wall；
Step 4；It waits sealing of hole material consolidation after ten minutes, gas drainage pipe is attached with extraction pipeline, complete sealing of hole
It works and carries out extraction operation.
By above structure it is found that coal mine gas extraction borehole rapid hole sealing device of the invention and application method tool
There is following effect:
1. coal mine gas extraction borehole rapid hole sealing device of the invention does not use hole-sealing grouting operation, saves
Hole-sealing grouting equipment simplifies hole-sealing technology operation；
2. coal mine gas extraction borehole rapid hole sealing device of the invention, by using whisk handle and thread switch
Hole sealing device both ends plug and pore-sealing liquid water conservancy diversion are completed to the operation of hole wall, reduces labor intensity；
3. the inside and outside floral tube being provided in the present invention can meet and store sealing of hole material before carrying out thread switch and tightening
Function, and the switching of entity patterns and floral tube mode can be completed by switch control, realize that water conservancy diversion pore-sealing liquid to coal wall, completes envelope
The effect in hole.
4. coal mine gas extraction borehole rapid hole sealing device of the invention, to used the one the second sealing of hole material into
It has gone modification, has improved its sealing of hole intensity, control the expansion reaction time interval of two kinds of sealing of hole material.
5. coal mine gas extraction borehole rapid hole sealing device of the invention realizes collection block head, gas drainage pipe
And pore-sealing liquid reduces sealing of hole labor intensity and process complexity, improves sealing of hole efficiency and effect in the function of one.
Detailed content of the invention can be obtained by aftermentioned explanation and institute's attached drawing.
Detailed description of the invention
Fig. 1 is to be sent into working section after drilling after coal mine gas extraction borehole rapid hole sealing device of the invention assembles
Schematic diagram；
Fig. 2 is the lateral cut-away view of Fig. 1 in the present invention；
Fig. 3 is the overall structure diagram of floral tube inside and outside the present invention；
Fig. 4 is the schematic diagram in the present invention before inside and outside floral tube thread switch opening；
Fig. 5 is the schematic diagram in the present invention after inside and outside floral tube thread switch opening.
Appended drawing reference:
1. whisk handle, 2. screw nut switchs, 3. first sealing of hole material, 4. second sealing of hole material, 5. separate layers, floral tube in 6., 7.
Outer floral tube, 8. gas drainage pipes, 9. fan-shaped stirring sheets, 10. extraction rooms, 11. sealing of hole pouches, 12. drillings, 13. coal seams.
Specific embodiment
Referring to Fig. 1 and 2, it is shown that coal mine gas extraction borehole rapid hole sealing device of the invention.
The coal mine gas extraction borehole rapid hole sealing device includes gas drainage pipe 8, interior floral tube 6 and outer floral tube 7,
The gas drainage pipe 8 is rotatable through interior floral tube 6, and extraction head is stretched out from the front end of interior floral tube 6 and be equipped in front end, after
End is equipped with whisk handle 1, and the outer floral tube 7 is bushed in outside interior floral tube 6 and can slide back and forth along it, the interior floral tube 6 and gas
Circular accommodating space is formed between drainage tube 8, and the first sealing of hole material 3 and the second sealing of hole material 4 are respectively equipped in accommodating space,
The first sealing of hole material 3 and the second sealing of hole material 4 realize the separation under original state by separate layer 5, the gas drainage pipe 8
Outer rim is equipped at intervals with multiple fan-shaped stirring sheets 9, to be driven fan-shaped by whisk handle 1 to the rotation process of gas drainage pipe 8
Stirring sheet 9 rotates, and cuts through separate layer 5, drives the first, second sealing of hole material uniformly to mix, and expansion reaction occurs.
Wherein, the interior floral tube 6, outer floral tube 7 are the pvc pipe (referring to Fig. 3) that surface is covered with array-like hole, initial
Under state, outer floral tube 7 is bushed in 6 outside of interior floral tube and mutual hole and misalignment, realizes and closes to accommodating space
(referring to fig. 4), and after the relatively interior floral tube 6 of outer floral tube 7 slides, the hole of the two is aligned, and forms the channel of water conservancy diversion sealing of hole material, is held
(referring to Fig. 5) in the open state between emptying, and the opposite of outer floral tube 7 slides through a screw nut switch 2 realization, the nut is opened
It closes 2 to be fixed on the outer rim external screw thread of interior floral tube 6, front end abuts against the rear end of outer floral tube 7, thus the opposite fortune of outer floral tube 7
Dynamic to be controlled by screw nut switch 2, this structure control is simpler practical, not only save the cost, but also is able to achieve accurate control.
The whisk handle, which realizes, can be manually rotated, and promote fan-shaped stirring sheet rotation partition sealing of hole material interlayer, and drive the
One second sealing of hole material is uniformly mixed and is smoothly reacted, it will be appreciated by persons skilled in the art that can also pass through electronic, liquid
Dynamic driving element realizes the rotation of fan-shaped stirring sheet.
In the specific implementation, specific pipe nipple number can be determined previously according to the hole sealing depth of drilling, carried out a point pipe nipple and sent
Enter designated position in hole, single-unit connection carries out tightening between mutual pipe nipple mainly by the helicitic texture on interior floral tube 6 and comes in fact
It is existing.Interior floral tube 6 before the opening of screw nut switch 2, is in entity sealing state, the first sealing of hole material 3 and the second sealing of hole material with outer floral tube 7
In 4 accommodating spaces in inside and outside floral tube composition stable under 5 compartmentation of separate layer；Pass through the rotation of whisk handle 1, band
Dynamic sector stirring sheet 9 rotates, and cuts through and realizes after separate layer 5 and quickly and accurately mix.
Wherein, two sealing of hole pouches 11 are additionally provided with, the sealing of hole pouch 11 is made of elastic material, and the sealing of hole pouch
11 may be disposed at the front and back end of the outer rim of interior floral tube 6 and outer floral tube 7, to pass through internal the first sealing of hole material 3, second being equipped with
Sealing of hole material 4, and the separation under original state is realized by separate layer 5, under the agitation of whisk handle 1, drive fan-shaped stirring sheet 9
Stirring, cuts through separate layer 5, and sealing of hole pouch is promoted to realize rapid expanding function, and sealing of hole pouch is promoted to form two end seal of hole sealing device
Plug.
Wherein, it can also be equipped with third sealing of hole material, the 4th sealing of hole material in the sealing of hole pouch 11, and equally pass through another separation
Layer realizes the separation under original state, under the agitation of whisk handle, drives the fan-shaped stirring sheet stirring of interior floral tube 6, cuts through this
Another separate layer promotes sealing of hole pouch to realize rapid expanding function, and sealing of hole pouch is promoted to form hole sealing device both ends block head.
Third, the 4th envelope material reaction time in the sealing of hole pouch is very fast, between 10~20s, expansion multiple 20
Times；The first, second sealing of hole material reaction time in inside and outside floral tube is slower, and between 60~300s, expansion multiple is 10 times, intensity
It is higher than the former；It is before promoting inside and outside floral tube to switch to floral tube mode, smoothly to be formed to guarantee tightening screw nut switch in this way
Sealing of hole both ends plug to avoid the phenomenon that pore-sealing liquid outflows in inside and outside floral tube.
After screw nut switch 2 is tightened, the relatively interior floral tube 6 of outer floral tube 7 occurs to slide relatively, docks two floral tube holes, leads
The first, second sealing of hole material that stream reacts completes sealing of hole to coal wall；It finally needs gas drainage pipe 8 and underground coal mine watt
The connection of this extraction pipeline, carries out gas drainage.
According to above structure, the present invention provides a kind of users of coal mine gas extraction borehole rapid hole sealing device
Method, specific operating procedure is:
Step 1: pretreatment operation can determine required inside and outside floral tube length, i.e., according to the depth of 13 internal drilling 12 of coal seam
The pipe nipple number of hole sealing device splicing, by the hole sealing device, merogenesis is sent to sealing of hole designated position, and assembles each component；
Step 2: carrying out Stirring to gas drainage pipe 8, and fan-shaped stirring sheet is driven to rotate and cut through separate layer,
Promote the first, second sealing of hole material uniformly to mix, and smoothly expands reaction；
Step 3: it after 10~20s, realizes that both ends block plug, carries out thread switch and tighten operation, promote inside and outside floral tube
Relative movement occurs and is switched to floral tube mode, the mixed first, second sealing of hole material of water conservancy diversion to coal wall；
Step 4；It waits sealing of hole material consolidation after ten minutes, gas drainage pipe is attached with extraction pipeline, complete sealing of hole
It works and carries out extraction operation.
It can be seen that the present invention has the advantages that
1. coal mine gas extraction borehole rapid hole sealing device of the invention does not use hole-sealing grouting operation, saves
Hole-sealing grouting equipment simplifies hole-sealing technology operation；
2. coal mine gas extraction borehole rapid hole sealing device of the invention, by using whisk handle and thread switch
Hole sealing device both ends plug and pore-sealing liquid water conservancy diversion are completed to the operation of hole wall, reduces labor intensity；
3. the inside and outside floral tube being provided in the present invention can meet and store sealing of hole material before carrying out thread switch and tightening
Function, and the switching of entity patterns and floral tube mode can be completed by switch control, realize that water conservancy diversion pore-sealing liquid to coal wall, completes envelope
The effect in hole.
4. coal mine gas extraction borehole rapid hole sealing device of the invention, to used the one the second sealing of hole material into
It has gone modification, has improved its sealing of hole intensity, control the expansion reaction time interval of two kinds of sealing of hole material.
5. coal mine gas extraction borehole rapid hole sealing device of the invention realizes collection block head, gas drainage pipe
And pore-sealing liquid reduces sealing of hole labor intensity and process complexity, improves sealing of hole efficiency and effect in the function of one.
It is readily apparent that above description and record is only illustrated in the disclosure being not intended to be limiting of the invention
Appearance, application or use.Although describing and being described in the accompanying drawings embodiment in embodiment, the present invention is not limited
Be described as by attached drawing example and in embodiment it is now recognized that optimal mode to implement the particular case of the teachings of the present invention
Son, the scope of the present invention will include any embodiment for falling into the description and appended claims of front.
Claims (3)
1. a kind of coal mine gas extraction borehole rapid hole sealing device, including gas drainage pipe, interior floral tube, outer floral tube and sealing of hole
Material, it is characterised in that:
The gas drainage pipe is rotatable through interior floral tube, and the outer floral tube is slidably bushed in outside interior floral tube, described
Circular accommodating space is formed between interior floral tube and gas drainage pipe, and the first sealing of hole material and the are respectively equipped in accommodating space
Two sealing of hole material, the first sealing of hole material and the second sealing of hole material realize the separation under original state by separate layer, and the gas is taken out
The outer rim for adopting pipe is equipped at intervals with multiple fan-shaped stirring sheets, to drive fan-shaped stirring sheet by the rotation process of gas drainage pipe
It rotates, cuts through separate layer, drive the first, second sealing of hole material uniformly to mix, and expansion reaction occurs；
The interior floral tube, outer floral tube are the pvc pipe that surface is covered with array-like hole, and in the initial state, outer floral tube is bushing
Outside interior floral tube and mutual hole and misalignment, accommodating space is realized and is closed, and outer floral tube relatively in floral tube
After sliding, the hole of the two is aligned, and forms the channel of water conservancy diversion sealing of hole material, and accommodating space is in the open state；
The back segment of the gas drainage pipe is equipped with whisk handle, and the whisk handle, which realizes, can be manually rotated, and promote fan-shaped stirring
Piece rotation, is additionally provided with two sealing of hole pouches, the sealing of hole pouch is made of elastic material, and the sealing of hole pouch is set to interior flower
The front and back end of the outer rim of pipe and outer floral tube, thus by internal the first sealing of hole material, the second sealing of hole material being equipped with, and pass through separation
Layer realizes the separation under original state, under the agitation of whisk handle, drives fan-shaped stirring sheet stirring, cuts through separate layer, promote
Sealing of hole pouch realizes rapid expanding function, and sealing of hole pouch is promoted to form hole sealing device both ends block head.
2. coal mine gas extraction borehole rapid hole sealing device as described in claim 1, it is characterised in that: the phase of outer floral tube
It is realized to a screw nut switch is slid through, the screw nut switch is fixed on the outer rim external screw thread of interior floral tube, and front end abuts against
The rear end of outer floral tube.
3. a kind of user of the coal mine gas extraction borehole rapid hole sealing device as described in any in claim 1-2
Method, operating procedure are:
Step 1: pretreatment operation determines required inside and outside floral tube length according to the depth of coal seam internal drilling；
Step 2: carrying out Stirring to gas drainage pipe, fan-shaped stirring sheet driven to rotate and cut through separate layer, promotes the
One, the second sealing of hole material uniformly mixes, and smoothly expands reaction；
Step 3: after 10~20s, realizing that both ends block plug, promotes inside and outside floral tube that relative movement occurs and is switched to floral tube mould
Formula, the mixed first, second sealing of hole material of water conservancy diversion to coal wall；
Step 4；It waits sealing of hole material consolidation after ten minutes, gas drainage pipe is attached with extraction pipeline, complete sealing of hole work
And carry out extraction operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610227891.3A CN105888603B (en) | 2016-04-13 | 2016-04-13 | Coal mine gas extraction borehole rapid hole sealing device and application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610227891.3A CN105888603B (en) | 2016-04-13 | 2016-04-13 | Coal mine gas extraction borehole rapid hole sealing device and application method |
Publications (2)
| Publication Number | Publication Date |
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| CN105888603A CN105888603A (en) | 2016-08-24 |
| CN105888603B true CN105888603B (en) | 2018-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610227891.3A Active CN105888603B (en) | 2016-04-13 | 2016-04-13 | Coal mine gas extraction borehole rapid hole sealing device and application method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106759355A (en) * | 2016-11-30 | 2017-05-31 | 上海建工集团股份有限公司 | A kind of staggered joint type non-return horizontal reciprocating Grouting Pipe and its construction method |
| CN106958455A (en) * | 2017-04-13 | 2017-07-18 | 辽宁工程技术大学 | A kind of highly gassy mine drilling and sealing device |
| CN108361060B (en) * | 2018-01-16 | 2019-04-30 | 中煤科工集团西安研究院有限公司 | Coal mine backspin mixes Self-expansion type gas extraction borehole rapid hole sealing device and method |
| CN108086945B (en) * | 2018-01-20 | 2023-10-03 | 河南永锦能源有限公司 | Layer-penetrating drilling separation type whole-course gas extraction hole sealing device and hole sealing method thereof |
| CN110644944B (en) * | 2019-08-26 | 2021-05-18 | 中煤科工集团西安研究院有限公司 | Outer flat type high-pressure rotary jet grouting device and method for complex stratum under coal mine |
| CN111139045B (en) * | 2019-12-20 | 2022-06-03 | 煤炭科学技术研究院有限公司 | Gas pressure measurement drilling hole filling sealing material and using method thereof |
| CN112523720A (en) * | 2020-12-15 | 2021-03-19 | 山西三晋伟拓工程咨询有限公司 | Novel quick hole packer |
| CN113494266A (en) * | 2021-09-01 | 2021-10-12 | 洛阳贝隆实业有限公司 | Gas drainage hole plugging device and using method thereof |
| CN114607314B (en) * | 2022-03-30 | 2023-10-17 | 煤炭科学技术研究院有限公司 | Mechanical hole packer for gas extraction drilling and use method thereof |
| CN115506743B (en) * | 2022-09-16 | 2024-09-10 | 永城永安矿山安全技术工程有限公司 | Gas extraction device capable of improving gas extraction concentration in coal mine tunnel |
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|---|---|---|---|---|
| US3901319A (en) * | 1973-11-02 | 1975-08-26 | Coal Industry Patents Ltd | Sealing a tube in a bore |
| US4687060A (en) * | 1986-06-13 | 1987-08-18 | Methane Drainage Ventures | Production and grout liner for methane drainage in subterranean boreholes and method |
| CN101050696A (en) * | 2007-05-10 | 2007-10-10 | 河南理工大学 | Bag type paste injection hole sealing device and its hole sealing method |
| CN103437736A (en) * | 2013-08-05 | 2013-12-11 | 洛阳烨翔实业有限公司 | Rapidly-assembled type grouting and hole sealing device |
-
2016
- 2016-04-13 CN CN201610227891.3A patent/CN105888603B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3901319A (en) * | 1973-11-02 | 1975-08-26 | Coal Industry Patents Ltd | Sealing a tube in a bore |
| US4687060A (en) * | 1986-06-13 | 1987-08-18 | Methane Drainage Ventures | Production and grout liner for methane drainage in subterranean boreholes and method |
| CN101050696A (en) * | 2007-05-10 | 2007-10-10 | 河南理工大学 | Bag type paste injection hole sealing device and its hole sealing method |
| CN103437736A (en) * | 2013-08-05 | 2013-12-11 | 洛阳烨翔实业有限公司 | Rapidly-assembled type grouting and hole sealing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105888603A (en) | 2016-08-24 |
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