CN102562133B - Device and method for sealing and drilling holes of gas drainage - Google Patents
Device and method for sealing and drilling holes of gas drainage Download PDFInfo
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- CN102562133B CN102562133B CN2012100112775A CN201210011277A CN102562133B CN 102562133 B CN102562133 B CN 102562133B CN 2012100112775 A CN2012100112775 A CN 2012100112775A CN 201210011277 A CN201210011277 A CN 201210011277A CN 102562133 B CN102562133 B CN 102562133B
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Abstract
Disclosed are a device and a method for sealing and drilling holes of gas drainage. The device comprises a barrel with a plurality of holes, a layer of an inner film is attached to the inner wall of the barrel, a barrel front cover and a barrel back cover which are sleeved on a barrel drainage pipe are respectively arranged on two sides of the barrel, an annular ring board is positioned in the barrel, a spring is mounted on one side of the annular ring board, a plurality of pricking pins and pull lines are mounted on the other side of the annular ring board, and a polyurethane isocyanate bag and a polyurethane combined polyether bag which are sleeved together are arranged in the barrel. When the device is sent to the needed position in a drilling hole with the gas drainage pipe, the pulling line is pulled so that the pricking pins on the annular ring board prick the polyurethane isocyanate bag and the polyurethane combined polyether bag, two slurries in the bags flow out for mixing, the annular ring board is repeatedly pulled for multiple times, slurries in the polyurethane isocyanate bag and the polyurethane combined polyether bag are repeatedly stirred and fully mixed, sealing materials which are obtained by the reaction of the mixed slurries continuously swell until the inner film bursts, the sealing materials are extruded from the plurality of holes on the wall of the barrel and are closely attached to the drilling holes, and the sealing of the drilling holes is achieved.
Description
Technical field
The present invention relates to a kind of drilling and sealing method, belong to coal mine lower area gas control technology and equipment field, especially relate to the coal mine down-hole drilling hole sealing technology.
Background technology
Gas accident is major casualty under coal mine, and national control of coalmine gas policy determines that highly gassy mine must first take out afterwards and adopt, and gas pumping is the measure of effecting a permanent cure.China's coal-mine gas pumping rate is generally lower, except gas permeability of coal seam is poor, wait the impact of geological conditions, topmost reason is that the sealing quality of boring is poor, effectively crack around shutoff boring, cause colliery to occur that in the extraction process gas density decay is fast, gas flow is low.
China's coal-mine is generally used organic resin material or other macromolecular material at present, and these materials generally carry out the hybrid reaction generation by two or more chemical grout.Conventional method is to be uniformly mixed the number of chemical slurries by craft, after stirring, utilize cotton to be adsorbed and be wrapped on the gas pumping pipeline, insert in the lump drainage holes with the gas pumping pipeline, due to from chemical grout from starting to be mixed into the only tens seconds interval time (usually being less than 30s) of foaming, thereby usually the gas pumping pipe in drainage holes in progradation mixed serum started foaming and intumescing, stop further and advance, can't send to the sealing of hole position of setting, do not reach the sealed borehole length of design, general 3 ~ the 4m of sealed borehole length, the sealing of hole section is in boring cranny development position, can not form effective sealing.This technique needs several workmans to be skilled in technique and close fit in addition, and workman's skin easily contacts chemical grout, and human body is had to certain harm.
Summary of the invention
Technical problem: the objective of the invention is for the problem existed in prior art, provide that a kind of method is simple, compact conformation, effective mash gas pumping drilling hole sealing device and the method for sealing of hole.
Technical scheme: mash gas pumping drilling hole sealing device of the present invention, comprise the cylinder that is furnished with some holes, be attached with one deck inner membrance on cylinder inner wall, the both sides of cylinder are respectively equipped with cylinder protecgulum and the cylinder bonnet be sleeved on the gas pumping pipe, be provided with on end face the Circular Plate that is furnished with a plurality of holes in cylinder, Circular Plate one side is arranged with the spring be connected with the cylinder protecgulum, be furnished with some prickers on the opposite side end face of Circular Plate, and be arranged with two stay cords that stretch out cylindrical outer, the polyurethane that is provided with the polyurethane black material pouch be fixed on the gas pumping pipe between Circular Plate and cylinder bonnet and is sleeved on the black material of polyurethane pouch is expected pouch in vain.
The length of described cylinder is 0.2 ~ 0.5m, and diameter is 100mm.
Mash gas pumping drilling method for sealing of the present invention comprises the following steps:
After the cylinder protecgulum that a. will be connected with the Circular Plate spring is fixing with the cylinder that is furnished with some holes one end that adheres to one deck inner membrance, be sleeved on the gas pumping pipe, then nestable polyurethane together black material pouch and polyurethane are expected to pouch is sleeved on the gas pumping pipe in vain, send in cylinder, afterwards the cylinder bonnet is packed into and is fixed on the other end of cylinder;
B. the gas pumping pipe is inserted in mash gas pumping drilling, apart from aperture 0.5～1 m, pull out the stay cord be fixed on Circular Plate, pricker on Circular Plate punctures polyurethane black material pouch and polyurethane is expected pouch in vain, two kinds of slurries outflows in bag are mixed, mixed serum flows to cylinder protecgulum direction by a plurality of holes on Circular Plate, repeatedly pulls Circular Plate repeatedly, makes the black material of polyurethane pouch expect with polyurethane that in vain the slurries in pouch repeatedly stir fully and mix;
C. the encapsulant that mixed slurry reaction generates constantly expands, and bursts inner membrance, and extrudes with the hole wall of holing and combine closely in the some holes from the cylinder barrel, realizes the sealing to boring.
Beneficial effect: owing to having adopted technique scheme, the cylinder of polyurethane black and white material pouch is equipped with in utilization, can realize the regulation and control of sealing of hole position, can meet the requirement of design sealed borehole length, and a firm reaction compartment is arranged, by puncturing black and white material pouch, make the slurries hybrid reaction in black and white material pouch generate new encapsulant, encapsulant constantly expands, and bursts in inner membrance the some holes from the cylinder barrel and extrudes with the hole wall of holing and combine closely, and realizes the sealing to boring.There are characteristics simple in structure, easy to operate, that controllability is strong, harmless.
the accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the C-C generalized section of Fig. 1.
Fig. 3 is cylindrical structure schematic diagram of the present invention.
Fig. 4 is the Circular Plate structural representation.
In figure: 1. gas pumping pipe, the 2. black material of polyurethane pouch, 3. polyurethane is expected pouch in vain, 4. inner membrance, 5. cylinder, 6. Circular Plate, 7. spring, 8. hour hand, 9. stay cord, 10. boring, 11. apertures, 12. cylinder bonnets, 13. cylinder protecgulum, 14-1. the protecgulum circular hole, 14-2 bonnet circular hole, 14-3. Circular Plate circular hole.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the invention is further described:
Shown in Fig. 1, the mash gas pumping drilling hole sealing device mainly expects that by cylinder 5, the black material of polyurethane pouch 2, polyurethane pouch 3, Circular Plate 6, cylinder bonnet 12, cylinder protecgulum 13 form in vain, is drilled with respectively protecgulum circular hole 14-1, the bonnet circular hole 14-2 and the Circular Plate circular hole 14-3 that wear gas pumping pipe 1 on cylinder protecgulum 13, cylinder bonnet 12 and Circular Plate 6.Have some holes on cylinder 5 walls, the length of described cylinder 5 is 0.2 ~ 0.5m, and diameter is 100mm, as shown in Figure 3, be attached with one deck inner membrance 4 on cylinder 5 inwalls, the both sides of cylinder 5 are respectively equipped with cylinder protecgulum 13 and the cylinder bonnet 12 be sleeved on gas pumping pipe 1, the inside of cylinder 5 is provided with a Circular Plate 6, be evenly distributed with a plurality of holes on Circular Plate 6, Circular Plate 6 one sides are arranged with the spring 7 be connected with cylinder protecgulum 13, be furnished with some prickers 8 on the opposite side end face of Circular Plate 6, and be arranged with two stay cords 9 that stretch out cylinder 5 outsides, be provided with the black material of the polyurethane pouch 2 be fixed on gas pumping pipe 1 and the polyurethane be sleeved on the black material of polyurethane pouch 2 between Circular Plate 6 and cylinder bonnet 12 and expect in vain pouch 3.
Mash gas pumping drilling method for sealing of the present invention: at first inner membrance 4 is sleeved in the cylinder 5 that barrel is drilled with some holes, the length of cylinder 5 is 0.2 ~ 0.5m, diameter is 100mm, cylinder protecgulum 13 is screwed on cylinder 5, cylinder protecgulum 13 is drilled with the protecgulum circular hole 14-1 that wears gas pumping pipe 1, and on cylinder protecgulum 13, symmetry is fixed two springs 7, and the other end of spring 7 connects Circular Plate 6, weld pointed hour hand 8 in Circular Plate 6 one sides, on Circular Plate, 6 symmetries are fixed two stay cords 9; Welding hour hand 8 one sides are cylinder protecgulum 13 dorsad, has been evenly arranged a plurality of open-works 11 on Circular Plate 6, and Circular Plate 6 centers of circle are drilled with Circular Plate circular hole 14-3.The cylinder protecgulum 13 that will be connected with Circular Plate 6 springs and the cylinder that is furnished with some holes 5 one ends that adhere to one deck inner membrance 4 are fixed, and polyurethane is expected the inner membrance 4 that pouch 3 is outer in vain, inner membrance 4 both ends opens and isometric with cylinder 5, and the inner membrance diameter is 95mm.Gas pumping pipe 1 is passed to protecgulum circular hole 14-1 and Circular Plate circular hole 14-3 closely fixing with cylinder protecgulum 13.Then nestable polyurethane together black material pouch 2 and polyurethane are expected to pouch 3 is sleeved on gas pumping pipe 1 in vain, then polyurethane is expected in vain to pouch 3 is sleeved on the black material of polyurethane pouch 2, the black material of polyurethane pouch 2, polyurethane expect that pouch 3 two ends are banded on gas pumping pipe 1 in vain, send in cylinder 5, cylinder bonnet 12 is fixed through gas pumping pipe 1 and cylinder 5 other ends.Gas pumping pipe 1 is inserted in mash gas pumping drilling, apart from aperture 0.5～1 m, pull out the stay cord 9 be fixed on Circular Plate 6, pricker 8 on Circular Plate 6 punctures the black material of polyurethane pouch 2 and expects in vain pouch 3 with polyurethane, two kinds of slurries outflows in bag are mixed, along with constantly moving the black material of compression polyurethane pouch 2, Circular Plate 6 expects in vain pouch 3 with polyurethane, mixed serum flows to cylinder protecgulum 13 directions by a plurality of holes on Circular Plate 6, when spring 7 is moved cylinder bonnet 12 terminal to, loosen stay cord 9, Circular Plate 6 moves to cylinder protecgulum 13 directions, repeatedly pull Circular Plate more than 6 time, make the black material of polyurethane pouch 2 expect with polyurethane that in vain the slurries in pouch 3 repeatedly stir fully and mix, mixed slurry reaction generates new encapsulant, and encapsulant constantly expands, and bursts inner membrance 4, and extrudes in the some holes from cylinder 5 barrels with 10 the hole wall of holing and combine closely, and realizes holing 10 sealing.
Claims (1)
1. a mash gas pumping drilling hole sealing device, it is characterized in that: it comprises the cylinder (5) that is furnished with some holes, be attached with one deck inner membrance (4) on cylinder (5) inwall, the both sides of cylinder (5) are respectively equipped with cylinder protecgulum (13) and the cylinder bonnet (12) be sleeved on gas pumping pipe (1), be provided with on end face the Circular Plate (6) that is furnished with a plurality of holes in cylinder (5), Circular Plate (6) one sides are arranged with the spring (7) be connected with cylinder protecgulum (13), be furnished with some prickers (8) on the opposite side end face of Circular Plate (6), be arranged with two on the opposite side end face of Circular Plate (6) and stretch out the outside stay cord (9) of cylinder (5), be provided with the polyurethane black material pouch (2) be fixed on gas pumping pipe (1) and the polyurethane be sleeved on polyurethane black material pouch (2) between Circular Plate (6) and cylinder bonnet (12) and expect in vain pouch (3).
2, mash gas pumping drilling hole sealing device as claimed in claim 1 is characterized in that: the length of described cylinder (5) is 0.2 ~ 0.5m, and diameter is 100mm.
3, a kind of mash gas pumping drilling method for sealing of device as claimed in claim 1, is characterized in that, comprises the following steps:
After the cylinder protecgulum (13) that a. will be connected with Circular Plate (6) spring and the cylinder that is furnished with some holes (5) one ends that adhere to one deck inner membrance (4) are fixing, be sleeved on gas pumping pipe (1), then nestable polyurethane together black material pouch (2) and polyurethane are expected to pouch (3) is sleeved on gas pumping pipe (1) in vain, send in cylinder (5), afterwards cylinder bonnet (12) is packed into and is fixed on the other end of cylinder (5);
B. gas pumping pipe (1) is inserted in mash gas pumping drilling, apart from aperture 0.5～1 m, pull out the stay cord (9) be fixed on Circular Plate (6), pricker (8) on Circular Plate (6) punctures polyurethane black material pouch (2) and expects in vain pouch (3) with polyurethane, two kinds of slurries outflows in bag are mixed, mixed serum flows to cylinder protecgulum (13) direction by a plurality of holes on Circular Plate (6), repeatedly pull Circular Plate (6) repeatedly, make polyurethane black material pouch (2) expect with polyurethane that in vain the slurries in pouch (3) repeatedly stir fully and mix;
C. the encapsulant that mixed slurry reaction generates constantly expands, and bursts inner membrance (4), and extrudes with the hole wall of hole (10) and combine closely in the some holes from cylinder (5) barrel, realizes the sealing to boring (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100112775A CN102562133B (en) | 2012-01-16 | 2012-01-16 | Device and method for sealing and drilling holes of gas drainage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100112775A CN102562133B (en) | 2012-01-16 | 2012-01-16 | Device and method for sealing and drilling holes of gas drainage |
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| CN102562133A CN102562133A (en) | 2012-07-11 |
| CN102562133B true CN102562133B (en) | 2013-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012100112775A Active CN102562133B (en) | 2012-01-16 | 2012-01-16 | Device and method for sealing and drilling holes of gas drainage |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775120B (en) * | 2014-01-20 | 2016-01-20 | 中国矿业大学 | A kind of up mash gas pumping drilling drilling cuttings method for sealing |
| CN103883276B (en) * | 2014-02-18 | 2016-07-27 | 六盘水师范学院 | A kind of coal bed gas drainage drilling and sealing method |
| CN104612640B (en) * | 2015-01-12 | 2017-08-29 | 中国矿业大学 | A kind of coal mine down-hole drilling heat injection and sealing of hole integral method |
| CN106522831A (en) * | 2016-11-25 | 2017-03-22 | 淮南矿业(集团)有限责任公司 | Method for reinforcing borehole by polyurethane |
| CN110174033B (en) * | 2018-10-22 | 2021-10-15 | 天地科技股份有限公司 | Integrated remote control blasting device for pressure-relief blasting of coal mine underground coal rock stratum |
| CN111980621A (en) * | 2019-05-22 | 2020-11-24 | 西安青果新材料科技开发有限公司 | Polyurethane foam plugging device |
| CN111271023B (en) * | 2020-03-09 | 2022-03-15 | 中煤科工集团西安研究院有限公司 | Push type hole internal integrated rapid hole sealing device and method |
| CN111550281B (en) * | 2020-05-11 | 2021-07-16 | 平顶山天安煤业股份有限公司 | Drilling and hole sealing structure for coal mine gas drainage |
| CN111878060B (en) * | 2020-08-14 | 2022-10-04 | 中煤科工集团重庆研究院有限公司 | Installation device and method for monitoring sensor in coal rock stratum drilling hole |
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|---|---|---|---|---|
| US4321967A (en) * | 1979-07-21 | 1982-03-30 | Maschinenfabrik Korfmann Gmbh | Suction of gases from boreholes in coal mining |
| JP2004162387A (en) * | 2002-11-13 | 2004-06-10 | Sumitomo Mitsui Construction Co Ltd | Packing method for bore hole |
| 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 |
| CN101845944A (en) * | 2010-05-08 | 2010-09-29 | 中国矿业大学 | Method for sealing gas drainage boreholes at specified positions |
| CN201705387U (en) * | 2010-06-14 | 2011-01-12 | 阳泉煤业（集团）有限责任公司 | Hole drilling and sealing device for coal seam gas extraction |
| CN202500519U (en) * | 2012-01-16 | 2012-10-24 | 中国矿业大学 | Gas extraction drilling hole sealing apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2427887B (en) * | 2004-03-12 | 2008-07-30 | Schlumberger Holdings | Sealing system and method for use in a well |
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2012
- 2012-01-16 CN CN2012100112775A patent/CN102562133B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4321967A (en) * | 1979-07-21 | 1982-03-30 | Maschinenfabrik Korfmann Gmbh | Suction of gases from boreholes in coal mining |
| JP2004162387A (en) * | 2002-11-13 | 2004-06-10 | Sumitomo Mitsui Construction Co Ltd | Packing method for bore hole |
| 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 |
| CN101845944A (en) * | 2010-05-08 | 2010-09-29 | 中国矿业大学 | Method for sealing gas drainage boreholes at specified positions |
| CN201705387U (en) * | 2010-06-14 | 2011-01-12 | 阳泉煤业（集团）有限责任公司 | Hole drilling and sealing device for coal seam gas extraction |
| CN202500519U (en) * | 2012-01-16 | 2012-10-24 | 中国矿业大学 | Gas extraction drilling hole sealing apparatus |
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| CN102562133A (en) | 2012-07-11 |
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