CN105840134B - Wear layer single pouch injection hole sealing device of uplink drilling and its a method for sealing - Google Patents

Wear layer single pouch injection hole sealing device of uplink drilling and its a method for sealing Download PDF

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Publication number
CN105840134B
CN105840134B CN201610215652.6A CN201610215652A CN105840134B CN 105840134 B CN105840134 B CN 105840134B CN 201610215652 A CN201610215652 A CN 201610215652A CN 105840134 B CN105840134 B CN 105840134B
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CN
China
Prior art keywords
slip casting
hole
sealing
pipe
pouch
Prior art date
Application number
CN201610215652.6A
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Chinese (zh)
Other versions
CN105840134A (en
Inventor
孙玉宁
周福宝
王永龙
宋维宾
王振锋
刘俊岭
刘春�
夏同强
Original Assignee
河南理工大学
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Priority to CN201610215652.6A priority Critical patent/CN105840134B/en
Publication of CN105840134A publication Critical patent/CN105840134A/en
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Publication of CN105840134B publication Critical patent/CN105840134B/en

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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00Sealing or packing boreholes or wells
    • E21B33/10Sealing or packing boreholes or wells in the borehole
    • E21B33/13Methods or devices for cementing, for plugging holes, crevices, or the like
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F7/00Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose

Abstract

Layer single pouch injection hole sealing device of uplink drilling is worn, including recyclable Grouting Pipe, slip casting pipe fitting, preceding gas pumping pipe, drainage system, double-hole tube, expansion bushing, expansion pouch, pressure-control valve and after gas drainage tube.Recyclable Grouting Pipe is connected by drainage system with the slip casting passage of double-hole tube, before hole sealing device is sleeved on by drainage system during use on gas pumping pipe, by recyclable Grouting Pipe to hole sealing device slip casting, expansion bushing, expansion pouch fill expansion plugging drilling after slurry.By adjusting position of the pressure-control valve on hole packer, the injection hole sealing of realization different angle inclined drill.The present invention can realize the more effective injection hole sealing that drills to inclined drill sealing of hole sections, the generation and development that preferably prevent sealing of hole sections drilling surrounding gas leakage crack, this method carries out setting slip casing by pressure by the pressure-control valve on hole packer, extend slip casting segment length, further enhance the sealing of hole effect of inclined drill.

Description

Wear layer single pouch injection hole sealing device of uplink drilling and its a method for sealing
Technical field
The invention belongs to coal mine gas extraction drill hole technical fields more particularly to one kind to wear layer single pouch slip casting of uplink drilling Hole sealing device and its method for sealing.
Background technology
This coal bed gas extraction of underground coal mine drilling depth generally 50 meters even hundreds of meters, one spacing of aperture of only adjusting the distance From a certain section drilling carry out sealing of hole, be difficult in addition to inclined drill using direct slip casting method carry out sealing of hole, extraction borehole Sealing of hole point permanent sealing of hole and provisional sealing of hole.At present, the permanent sealing of hole of well known this coal bed gas extraction drilling be with Polyurathamc, foam cement and other expanded materials are as sealing material, " cement hole sealing device " of early stage (ZL90227075.3) no longer use, the direct boring method that drills is only applicable to inclined drill, domestic at present generally using foaming Polyurethane material sealing of hole.At present, the provisional sealing of hole of well known coal working face firedamp taking-out discharging drilling uses reusable machinery Hole sealing device sealing of hole, if patent name is " down-hole gas sucking releasing inflation bag hole packer "(ZL94209078.0), gum cover it is swollen Expanding " hole packer for coal petrography drilling "(ZL200420010782.9)Deng.At present, patent name is " bag type paste injection hole sealing device And its method for sealing "(ZL200710054384.5)" shunting-type grouting plugging device for gas extraction center and its method for sealing " (ZL201110120920.3)Good sealing of hole effect has all been got, but in the release of coal body Elastic latent energy and coal seam watts The reduction of this pressure so that drilling surrounding gap is gradually developed, expanded, and coal bed drilling sealing of hole can not be made tight, there is gas leak phenomenon It generates, it is difficult to keep grouting pressure, be unable to reach preferable sealing of hole effect.In addition, different coal mine underground coal bed geological conditions Often there is phenomena such as collapse hole in difference, the hole packer being relatively large in diameter is caused to can not be successfully in insertion coal bed drilling, these are all to envelope Hole exerts a certain influence.And hole packer before is all double pouches, processing is more complicated, and the cost is relatively high.
The content of the invention
The present invention provides one kind and can realize and sealing of hole sections drilling is implemented more to solve shortcoming of the prior art Layer single pouch of uplink drilling is worn in effective injection hole sealing, the generation for preferably preventing sealing of hole sections drilling surrounding gas leakage crack and development Injection hole sealing device and its method for sealing.
In order to solve the above technical problems, the present invention adopts the following technical scheme that:Wear layer single pouch injection hole sealing of uplink drilling Device, including recyclable Grouting Pipe, slip casting pipe fitting, preceding gas pumping pipe, after gas drainage tube, drainage system, double-hole tube and Expansion bushing, double-hole tube front end are connected with preceding gas pumping pipe rear end by drainage system, double-hole tube rear end and after gas extraction Pipe front end passes through rear clamp connection;Diplopore in double-hole tube is respectively slip casting passage and extraction passage, extraction passage rear and front end It is connected respectively with preceding gas pumping pipe and after gas drainage tube, expansion bushing is cylindrical and inner hollow, outside expansion bushing Expansion pouch is arranged with, the front edge for expanding pouch and expansion bushing is sealed in double-hole tube excircle by preceding steel loop compression On, the back edge for expanding pouch and expansion bushing is sealed in by rear steel loop compression on double-hole tube excircle, and drainage system is same Before being axially disposed on the outside of gas pumping pipe, drainage system front end is connected with recyclable Grouting Pipe rear end by slip casting pipe fitting, drawn Stream device rear end is connected with the slip casting channel front portion of double-hole tube, and the slip casting passage in double-hole tube offers out inside expansion pouch Starch mouth;Check valve is installed, double-hole tube is equipped with to monitor the pressure-control valve of slip casting channel inner pressure, pressure at grout outlet Control valve is located between expansion pouch and after gas drainage tube.
Wear layer single pouch injection hole sealing device of uplink drilling, it is characterised in that:Before drainage system includes preceding clip and is located at Drainage tube on the outside of clip, the front end of drainage tube are equipped with the slip casting connector being connected with slip casting pipe fitting, drainage tube rear end and preceding Clip side is correspondingly provided with the stock inlet connected with slip casting passage, and stock inlet is located in front of preceding steel loop.
Wear layer single pouch injection hole sealing device of uplink drilling, it is characterised in that:Pin hole is equipped on drainage tube in left-right direction, Slip casting pipe fitting rear end is plugged in drainage tube and shear pin and drainage tube by being plugged in pin hole are sealedly and fixedly connected;Note Slurry pipe fitting front end is plugged in recyclable Grouting Pipe, and recyclable Grouting Pipe rear portion is compressed close by clamping sleeve with slip casting pipe fitting Envelope connection.
Wear layer single pouch injection hole sealing device of uplink drilling, it is characterised in that:Front and rear two in the slip casting passage of double-hole tube End is equipped with leak stopping cement or plugging block.
Wear layer single pouch injection hole sealing device of uplink drilling, it is characterised in that:After gas drainage tube rear end is connected with sieve Pipe.
Wear a layer method for sealing for the single pouch injection hole sealing device of uplink drilling, it is characterised in that:Comprise the following steps:
(1), in the rear end of after gas drainage tube connect sieve pipe, the slip casting pipe fitting that recyclable Grouting Pipe is connected is inserted into In the slip casting connector of drainage tube, shear pin is inserted into pin hole and fixes slip casting pipe fitting;
(2), the single pouch injection hole sealing device of layer uplink drilling will be worn be inserted into coal seam together with recyclable Grouting Pipe and wear layer The suitable hole sealing depth of uplink drilling;
(3), the front end of recyclable Grouting Pipe and external grouting pump connected, and check the pressure on grouting pump and grouting pump Whether table is normal, prepares grouting serous fluid;
(4), the inlet pipe of grouting pump is inserted into grouting serous fluid, start grouting pump and proceed by injection hole sealing, slip casting Pressure is stepped up, and grouting serous fluid is via grouting pump-recyclable Grouting Pipe-slip casting pipe fitting-drainage tube-stock inlet-note Passage-grout outlet-expansion bushing is starched, expansion bushing is expanded into slurry, and expansion bushing driving expansion pouch outwards expands, swelling bag It is fitted closely between bag outer wall and uphole inner wall, when the pressure in slip casting passage reaches the predetermined grouting pressure of pressure-control valve When, pressure-control valve is opened, the injection hole sealing operation to drilling beyond expansion pouch;
(5), after slip casting, pass through grouting pump injected clear water, cleaning pressure control valve, as the extraction later stage finds sealing of hole leakage During gas, second pulp feeding is carried out;
(6), firmly pull out recyclable Grouting Pipe, slip casting pipe fitting cuts shear pin, recycling slip casting pipe fitting with it is recyclable Grouting Pipe, injection hole sealing operation finish, and slip casting pipe fitting, recyclable Grouting Pipe and grouting pump are cleaned, treat next sealing of hole When use.
Using above-mentioned technical proposal, the present invention has the following technical effect that:
1st, the present invention uses the double-hole tube for integrating extraction passage and slip casting passage, enormously simplifies the knot of hole sealing device Structure overcomes the shortcomings that needing in addition to set slip casting passage, volume big, complicated in the prior art, is adapted to different coals Coal seam geological condition under mine, is conveniently operated, and improves work efficiency, can realize the more effective slip casting envelope that drills to sealing of hole sections It is stifled, more effectively avoid the generation and development in sealing of hole sections drilling surrounding coal wall crack, and also can be into minimum coalmass crevasse Row filling so that sealing of hole effect reaches optimal.
2nd, check valve is installed at grout outlet of the invention, ensure grouting serous fluid in slip casting passage can only from grout outlet into Enter into expansion bushing, it is impossible to which reverse flow, slip casting passage are equipped with pressure-control valve, and pressure-control valve reaches in grouting pressure It is opened during certain value, prevents pressure is excessive from expansion pouch being caused to burst, while the grouting serous fluid overflowed from pressure-control valve can be with Continue closure drilling.
3rd, for the present invention using expansion bushing is set inside expansion pouch, expansion bushing can support fixed expansion pouch, swollen Swelling lining is put on oozes slurry hole equipped with exhaust, and grouting serous fluid, which can be oozed from exhaust in slurry hole, enters expansion pouch, after gas drainage tube Rear end is connected with sieve pipe, can enter to avoid impurity such as the rubble coal cinders in drilling.The structural material of the present invention and slip casting material Material intensity does not influence coalcutter coal cutting, and spark will not be generated during coal cutting operation, exploitation that can efficiently, safe.
4th, slip casting passage both ends of the invention are blocked using leak stopping cement or plugging block, and grouting serous fluid is avoided to leak Go out, it is ensured that grouting pressure is kept constant, and is promoted sealing of hole effect, in drainage tube shear pin is used to fix slip casting pipe fitting, work as slip casting After sealing of hole, recyclable Grouting Pipe and slip casting pipe fitting are firmly extracted, it is reusable after cleaning.
Description of the drawings
Fig. 1 is the structural diagram of the present invention;
Fig. 2 is the enlarged drawing at A in Fig. 1;
Fig. 3 is that the present invention is applied to the schematic diagram that layer-through drilling takes out section coal seam in advance;
Fig. 4 is the enlarged drawing at B in Fig. 3.
Specific embodiment
As illustrated in fig. 1 and 2, it is of the invention to wear layer single pouch injection hole sealing device of uplink drilling, including recyclable Grouting Pipe 1st, slip casting pipe fitting 2, preceding 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 ends are connected with preceding 3 rear end of gas pumping pipe by drainage system 5, and 6 rear end of double-hole tube passes through with 4 front end of after gas drainage tube Clip 18 connects afterwards;Diplopore in double-hole tube 6 is respectively slip casting passage 10 and extraction passage 11, and 11 rear and front end of extraction passage is divided It is not connected with preceding gas pumping pipe 3 and after gas drainage tube 4, expansion bushing 7 is cylindrical and inner hollow, outside expansion bushing 7 Portion is arranged with expansion pouch 8, and the front edge for expanding pouch 8 and expansion bushing 7 is sealed in double-hole tube 6 by preceding steel loop 14 compression On excircle, the back edge for expanding pouch 8 and expansion bushing 7 is sealed in by rear steel loop 15 compression on 6 excircle of double-hole tube, Drainage system 5 is coaxial to be located at preceding 3 outside of gas pumping pipe, and 5 front end of drainage system passes through slip casting pipe fitting 2 and recyclable slip casting 1 rear end of pipe connects, and 5 rear end of drainage system is connected with 10 forepart of slip casting passage of double-hole tube 6, and the slip casting passage 10 of double-hole tube 6 exists Grout outlet 17 is offered inside expansion pouch 8, check valve 16 is installed at grout outlet 17, double-hole tube 6 is equipped with to monitor note The pressure-control valve 19 of pressure in passage 10 is starched, pressure-control valve 19 is located between expansion pouch 8 and after gas drainage tube 4.
Drainage system 5 includes the drainage tube 5-1 in 9 outside of clip before being located at, and the front end of drainage tube 5-1 is equipped with to be connect with Grouting Pipe The slip casting connector 5-2 of first 2 connection, drainage tube 5-1 rear ends and 9 side of preceding clip be correspondingly provided with connected with slip casting passage 10 into Mouth 5-3 is starched, stock inlet 5-3 is located at preceding 14 front of steel loop.
Pin hole is equipped on drainage tube 5-1 in left-right direction, 2 rear end of slip casting pipe fitting is plugged in drainage tube 5-1 and passes through The shear pin 20 being plugged in pin hole is sealedly and fixedly connected with drainage tube 5-1;2 front end of slip casting pipe fitting is plugged in recyclable slip casting In pipe 1, recyclable 1 rear portion of Grouting Pipe is compressed by clamping sleeve and slip casting pipe fitting 2 and is tightly connected.
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.
4 rear end of after gas drainage tube is connected with sieve pipe.
Paddle slip-casting hole-sealing method is oozed at the middle part of the present invention, comprises the following steps:
(1), the rear end of after gas drainage tube 4 connect sieve pipe, the slip casting pipe fitting 2 that recyclable Grouting Pipe 1 is connected It is inserted into the slip casting connector 5-2 of drainage tube 5-1, shear pin 20 is inserted into pin hole and fixes slip casting pipe fitting 2;
(2), the single pouch injection hole sealing device of layer uplink drilling will be worn wear layer together with recyclable Grouting Pipe 1 insertion coal seam The suitable hole sealing depth of uplink drilling;
(3), the front end of recyclable Grouting Pipe 1 and external grouting pump connected, and check the pressure on grouting pump and grouting pump Whether power table is normal, prepares grouting serous fluid;
(4), the inlet pipe of grouting pump is inserted into grouting serous fluid, start grouting pump and proceed by injection hole sealing, slip casting Pressure is stepped up, and grouting serous fluid is via grouting pump-2-drainage system of recyclable Grouting Pipe 1-slip casting pipe fitting 5-into slurry Mouth 5-3-17-expansion bushing of slip casting 10-grout outlet of passage 7, expansion bushing 7 are expanded into slurry, and expansion bushing 7 drives swelling bag The outwards expansion of bag 8, expands and is fitted closely between 8 outer wall of pouch and uphole inner wall, when the pressure in slip casting passage 10 reaches pressure During the predetermined grouting pressure of force control valve 19, pressure-control valve 19 is opened, and realizes the slip casting to drill beyond expansion pouch 8;
(5), after slip casting, pass through grouting pump injected clear water, cleaning pressure control valve 19, as the extraction later stage finds sealing of hole During gas leakage, second pulp feeding is carried out;
(6), firmly pull out recyclable Grouting Pipe 1, slip casting pipe fitting 2 cuts shear pin 20, recycling slip casting pipe fitting with can Grouting Pipe 1 is recycled, injection hole sealing operation finishes, slip casting pipe fitting 2, recyclable Grouting Pipe 1 and grouting pump are cleaned, treated down It is used during secondary sealing of hole.
As shown in Figure 3 and Figure 4, layer single pouch injection hole sealing device of uplink drilling of wearing of the invention carries out uphole sealing of hole work Industry, extraction adit 30, stope drift active workings 31, projecting coal bed 32 and drilling 33.
The above embodiments are only used to illustrate and not limit the technical solutions of the present invention, although with reference to above-described embodiment to this hair It is bright to be described in detail, it will be understood by those of ordinary skill in the art that:Still can the present invention be modified or be waited With replacing, without departing from the spirit or scope of the invention, or any substitutions, the power in the present invention should all be covered Among sharp claimed range.

Claims (6)

1. wear layer single pouch injection hole sealing device of uplink drilling, it is characterised in that:Including recyclable Grouting Pipe, slip casting pipe fitting, Preceding gas pumping pipe, after gas drainage tube, drainage system, double-hole tube and expansion bushing, double-hole tube front end and preceding gas pumping pipe Rear end is connected by drainage system, and double-hole tube rear end passes through rear clamp connection with after gas drainage tube front end;It is double in double-hole tube Hole is respectively slip casting passage and extraction passage, and extraction passage rear and front end connects respectively with preceding gas pumping pipe and after gas drainage tube Logical, expansion bushing is cylindrical and inner hollow, expansion bushing outer cover are equipped with expansion pouch, expands pouch and expansion bushing Front edge is sealed in by preceding steel loop compression on double-hole tube excircle, expand pouch and expansion bushing back edge pass through it is rear Steel loop compression is sealed on double-hole tube excircle, and drainage system is coaxial to be located on the outside of preceding gas pumping pipe, drainage system front end It being connected by slip casting pipe fitting with recyclable Grouting Pipe rear end, drainage system rear end is connected with the slip casting channel front portion of double-hole tube, Slip casting passage in double-hole tube offers grout outlet inside expansion pouch;Check valve at grout outlet is installed, is set on double-hole tube Be useful for monitoring slip casting channel inner pressure pressure-control valve, pressure-control valve be located at expansion pouch and after gas drainage tube it Between.
2. according to claim 1 wear layer single pouch injection hole sealing device of uplink drilling, it is characterised in that:Drainage system bag Clip and the drainage tube being located on the outside of preceding clip before including, the front end of drainage tube are equipped with the slip casting connection being connected with slip casting pipe fitting Mouthful, drainage tube rear end and preceding clip side are correspondingly provided with the stock inlet connected with slip casting passage, and stock inlet is located in front of preceding steel loop.
3. according to claim 2 wear layer single pouch injection hole sealing device of uplink drilling, it is characterised in that:Edge on drainage tube Left and right directions is equipped with pin hole, and slip casting pipe fitting rear end is plugged in drainage tube and the shear pin by being plugged in pin hole and drainage The seal of tube is fixedly connected;Slip casting pipe fitting front end is plugged in recyclable Grouting Pipe, and recyclable Grouting Pipe rear portion passes through clamping sleeve It compresses and is tightly connected with slip casting pipe fitting.
4. according to claim 1 or 2 wear layer single pouch injection hole sealing device of uplink drilling, it is characterised in that:Double-hole tube Slip casting passage in rear and front end be equipped with leak stopping cement or plugging block.
5. according to claim 3 wear layer single pouch injection hole sealing device of uplink drilling, it is characterised in that:After gas extraction Pipe rear end is connected with sieve pipe.
6. according to claim 5 wear a layer method for sealing for the single pouch injection hole sealing device of uplink drilling, it is characterised in that: Comprise the following steps:
(1), in the rear end of after gas drainage tube connect sieve pipe, the slip casting pipe fitting that recyclable Grouting Pipe is connected is inserted into drainage In the slip casting connector of pipe, shear pin is inserted into pin hole and fixes slip casting pipe fitting;
(2), the single pouch injection hole sealing device of layer uplink drilling will be worn be inserted into coal seam together with recyclable Grouting Pipe and wear a layer uplink Drill suitable hole sealing depth;
(3), the front end of recyclable Grouting Pipe and external grouting pump connected, and check that the pressure gauge on grouting pump and grouting pump is It is no normal, prepare grouting serous fluid;
(4), the inlet pipe of grouting pump is inserted into grouting serous fluid, start grouting pump and proceed by injection hole sealing, grouting pressure It is stepped up, grouting serous fluid leads to via grouting pump-recyclable Grouting Pipe-slip casting pipe fitting-drainage tube-stock inlet-slip casting Road-grout outlet-expansion bushing, expansion bushing are expanded into slurry, and expansion bushing driving expansion pouch outwards expands, and expands outside pouch It is fitted closely between wall and uphole inner wall, when the pressure in slip casting passage reaches the predetermined grouting pressure of pressure-control valve, Pressure-control valve is opened, the injection hole sealing operation to drilling beyond expansion pouch;
(5), after slip casting, pass through grouting pump injected clear water, cleaning pressure control valve, as the extraction later stage finds sealing of hole gas leakage When, carry out second pulp feeding;
(6), firmly pull out recyclable Grouting Pipe, slip casting pipe fitting cuts shear pin, recycling slip casting pipe fitting and recyclable slip casting Pipe, injection hole sealing operation finish, slip casting pipe fitting, recyclable Grouting Pipe and grouting pump are cleaned, made when next sealing of hole With.
CN201610215652.6A 2016-04-08 2016-04-08 Wear layer single pouch injection hole sealing device of uplink drilling and its a method for sealing CN105840134B (en)

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106968633B (en) * 2017-03-31 2019-06-21 中国矿业大学 A kind of mash gas pumping drilling hole sealing device and method for sealing
CN107939330B (en) * 2017-12-09 2020-03-10 煤科集团沈阳研究院有限公司 Coal mine gas extraction hole plugging device
CN108166535A (en) * 2018-01-02 2018-06-15 中亿丰建设集团股份有限公司 A kind of construction method of bellows leak stopping
CN109184616A (en) * 2018-09-07 2019-01-11 佛山市禅城区诺高环保科技有限公司 Double-hole tube grouting plugging device and its application 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

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2193428Y (en) * 1994-04-22 1995-03-29 河南省煤炭科学研究所 Aerated capsule hole sealing device for mine gas ventilation
CN103899270A (en) * 2014-03-13 2014-07-02 平顶山市铁福来机电设备有限公司 Three-wall water injection hole packer for coal mines
CN203742542U (en) * 2014-02-13 2014-07-30 河南理工大学 Non-pipe grouting hole sealing device
CN204152475U (en) * 2014-10-20 2015-02-11 山西晋城无烟煤矿业集团有限责任公司 Layer-through drilling list pouch hole sealing device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201320104D0 (en) * 2013-11-14 2014-01-01 Smjm Ltd An improved support device for use in a wellbore and a method for deploying a barrier in a wellbore

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2193428Y (en) * 1994-04-22 1995-03-29 河南省煤炭科学研究所 Aerated capsule hole sealing device for mine gas ventilation
CN203742542U (en) * 2014-02-13 2014-07-30 河南理工大学 Non-pipe grouting hole sealing device
CN103899270A (en) * 2014-03-13 2014-07-02 平顶山市铁福来机电设备有限公司 Three-wall water injection hole packer for coal mines
CN204152475U (en) * 2014-10-20 2015-02-11 山西晋城无烟煤矿业集团有限责任公司 Layer-through drilling list pouch hole sealing device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"顶板穿层钻孔带压封孔方法";宋俊杰 等;《煤炭与化工》;20130531;第142-145页 *

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