CN105952411A - Plugging device for coal-mine gas extraction hole sealing - Google Patents
Plugging device for coal-mine gas extraction hole sealing Download PDFInfo
- Publication number
- CN105952411A CN105952411A CN201610467514.7A CN201610467514A CN105952411A CN 105952411 A CN105952411 A CN 105952411A CN 201610467514 A CN201610467514 A CN 201610467514A CN 105952411 A CN105952411 A CN 105952411A
- Authority
- CN
- China
- Prior art keywords
- plug
- plugging device
- hole
- air bag
- sealing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 41
- 238000000605 extraction Methods 0.000 title abstract 3
- 239000003245 coal Substances 0.000 claims abstract description 17
- 210000003437 trachea Anatomy 0.000 claims description 13
- 238000005086 pumping Methods 0.000 claims description 8
- 229920001971 elastomer Polymers 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 abstract description 7
- 239000004814 polyurethane Substances 0.000 abstract description 7
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 abstract 1
- 239000011799 hole material Substances 0.000 description 38
- 238000000034 method Methods 0.000 description 9
- 239000011083 cement mortar Substances 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000005273 aeration Methods 0.000 description 4
- 238000005553 drilling Methods 0.000 description 4
- 239000003566 sealing material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 210000004712 air sac Anatomy 0.000 description 2
- 238000003823 mortar mixing Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 102000016938 Catalase Human genes 0.000 description 1
- 108010053835 Catalase Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 239000013521 mastic Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000013022 venting 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
- E21B33/12—Packers; Plugs
- E21B33/1208—Packers; Plugs characterised by the construction of the sealing or packing means
-
- 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)
- Pipe Accessories (AREA)
Abstract
The invention discloses a plugging device for coal-mine gas extraction hole sealing. The plugging device comprises a cylindrical plug and a gas bag sleeving the external circumference of the cylindrical plug. The gas bag is annular, the internal diameter of the gas bag is identical to the external diameter of the plug, the gas bag is provided with a gas pipe axially along the plug, and two ends of the plug are provided with flanges along the external circumference of a plugging device body. When the plugging device for coal-mine gas extraction hole sealing is in use, the gas bag sleeves the external circumference of the cylindrical plug and is fed into a drilled hole together with the plug prior to being charged with the gas pipe, the gas bag swells after being charged so as to seal the gap between the cylindrical plug and the wall of the drilled hole, after grouting fluid congeals, gas in the gas bag is released, the gas bag is recycled for reuse, and after the coal seam surrounding the drilled hole is mined, the plug can also be recycled for reuse. The plugging device has the advantages of convenience in use and reusability, polyurethane is avoided, cost is lowered, and meanwhile environmental pollution is avoided.
Description
Technical field
The invention belongs to coal mine gas drainage equipment technical field, be specifically related to a kind of coal mine gas drainage sealing of hole plugging device.
Background technology
Gas pumping is the basis that gas resources utilizes, and is again the measure that effects a permanent cure of colliery improvement Gas Disaster, and the sealing of hole of mash gas pumping drilling is one of key technology of gas pumping.The traditional method for sealing of China mainly has rubber ring hole packer sealing of hole, conventional cement mortar sealing of hole, yellow mud and cement mortar mixing sealing of hole etc..Rubber ring hole packer is mainly used in the sealing of rock-boring.Experience have shown that, under the conditions of rock densification is chip-proof, hole packer favorable sealing property, it is possible to reuse 3～5 times, simple to operate.If but lengthen hole sealing depth, and operate in its structure and sealing of hole and be problematic in that, Improvement of still needing.Especially use rubber hole packer in catalase area and coal seam, be extremely difficult to tight sealing of hole.Conventional cement mortar sealing of hole has the advantages such as material source is sufficient, price is less expensive.But, after cement mortar solidification, matter is rigid crisp, when pressing impact with being subject to, often produces crack, makes boring leak gas.Secondly, after ordinary mortar solidification, form, on boring top, the seam that shrinks, make effective sealing of hole Distance Shortened.For the inclination angle boring less than 10 °, after cement mortar solidifies, form the contraction gap of a through complete opening length, it is impossible to ensure boring tightness.Cement mortar sealing of hole materials are many, transport and operation is inconvenienced, and take a lot of work laborious, and sealing quality is difficult to again ensure.Yellow mud and cement mortar mixing sealing of hole, be widely used in the sealing of coal bed drilling, have the advantages that material source is wide and cheap.But, yellow mud meets water deliquescing, consolidation of can not hardening in the short time, affects sealing quality, and sealing of hole operation is complicated laborious.
In recent years, domestic scholars proposes novel mash gas pumping drilling sealing material and technique include: powder particles secondary hole sealing method, mining PD sealing material, flexible mastic sealing material and gravity mend sizing process, " strong and weak strong " hole sealing technology with pressure, boring radially expandable osmotic hole sealing technology, active support formula injection hole sealing technology etc..Above sealing material and technique, by carrying out type approval test at local site, all achieve certain effect.But, reason due to aspects such as material cost, operating procedure and sealing of hole effects, the two ends polyurethane in drilling and sealing section is used to block, light water cement paste or cement mortar is injected in the closing space that two sections of polyurethane are formed, the most common " two block up a note " method, is the most commonly used method for sealing of current gas pumping.But, two block up a note " and material used by " two block up " is mainly polyurethane in technique, and this material does not only has low toxicity, and cost remains high.
Summary of the invention
For problems of the prior art, the present invention provides a kind of coal mine gas drainage sealing of hole plugging device, it is to avoid use polyurethane, free from environmental pollution while reducing cost.
For solve above-mentioned technical problem, the present invention by the following technical solutions:
A kind of coal mine gas drainage sealing of hole plugging device, including cylindric plug and the air bag being set on cylindric plug excircle, described air bag is the air bag of annular, the internal diameter of air bag is identical with the external diameter of cylindric plug, being axially arranged with trachea along plug on described air bag, the two ends of described plug are provided with flange along plug body excircle.
Described plug is respectively equipped with Grouting Pipe through hole, exhaustor through hole and gas pumping pipe through-hole vertically.
A length of 10 ~ the 50cm of described trachea, air-tube type uses the trachea that copper or rustless steel are made.
The height of described flange is 1 ~ 2mm.
The thickness of described air bag is less than the height of cylindric plug, air bag wall thickness 0.2-0.5mm.
The plug that described plug is plastics or rubber is made.
Beneficial effects of the present invention: when the coal mine gas drainage sealing of hole plugging device of the present invention uses by Air sac cover on the excircle of cylindric plug, utilize trachea to airbag aeration after sending into boring together with plug, expand thus space between O-ring column plug and the wall of a borehole after airbag aeration, after institute's injection slurry condenses, bleed off the gas in air bag, utilize the trachea on air bag (being now equivalent to handle) can be by air bag utilization and recycle, after seam mining around hole to be drilled, cylindric plug can also utilization and recycle.This invention has advantage easy to use, reusable, it is to avoid use polyurethane, free from environmental pollution while reducing cost.
Accompanying drawing explanation
Fig. 1 is the structural representation (air bag is inflated condition) of the present invention.
Fig. 2 is the cross-sectional structure schematic diagram of plugging device body of the present invention.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention will be further described.Should be understood that following example be merely to illustrate the present invention not for limit the scope of the present invention, the person skilled in the art in this field can make some nonessential improvement and adjustment according to the content of foregoing invention.
As depicted in figs. 1 and 2, a kind of coal mine gas drainage sealing of hole plugging device, including cylindric plug 1 and the air bag 2 being set on cylindric plug excircle, plug is the plug using plastics or rubber to make, air bag is the air bag of annular, the internal diameter of air bag is identical with the external diameter of cylindric plug, and the thickness d of air bag 2 is less than the height h, air bag wall thickness 0.2-0.5mm of cylindric plug.
Air bag is axially arranged with trachea 3 along plug, and for air inlet and the venting of air bag, a length of 10 ~ 50cm of trachea, air-tube type uses the trachea that copper or rustless steel are made.The two ends of described plug are provided with flange 14 along plug excircle, it is to avoid air bag slips from torus cylinder, and the height of flange 14 is 1 ~ 2mm.
Described plug is respectively equipped with Grouting Pipe through hole 11, exhaustor through hole 12 and gas pumping pipe through-hole 13 vertically, and the distance between minimum range and each hole and plug external boundary between each hole is more than 2 millimeters.
The using method of the present invention: during use by Air sac cover on the excircle of cylindric plug, utilize trachea to airbag aeration after sending into boring together with plug, expand thus space between O-ring column plug body and the wall of a borehole after airbag aeration, after institute's injection slurry condenses, bleed off the gas in air bag, utilizing the trachea on air bag (being now equivalent to handle) can be by air bag utilization and recycle, after seam mining around hole to be drilled, cylindric plug can also utilization and recycle.This invention has advantage easy to use, reusable, it is to avoid use polyurethane, after this Technical investment uses, can be greatly saved the sealing of hole cost of coal mine gas drainage.
The ultimate principle of the present invention and principal character and advantages of the present invention have more than been shown and described.Skilled person will appreciate that of the industry; the present invention is not restricted to the described embodiments; the principle that the present invention is simply described described in above-described embodiment and description; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements both fall within scope of the claimed invention.Claimed scope is defined by appending claims and equivalent thereof.
Claims (6)
1. a coal mine gas drainage sealing of hole plugging device, it is characterized in that: include cylindric plug and the air bag being set on cylindric plug excircle, described air bag is the air bag of annular, the internal diameter of air bag is identical with the external diameter of cylindric plug, being axially arranged with trachea along plug on described air bag, the two ends of described plug are provided with flange along plug body excircle.
Coal mine gas drainage sealing of hole plugging device the most according to claim 1, it is characterised in that: described plug is respectively equipped with Grouting Pipe through hole, exhaustor through hole and gas pumping pipe through-hole vertically.
Coal mine gas drainage sealing of hole plugging device the most according to claim 1, it is characterised in that: a length of 10 ~ 50cm of described trachea, air-tube type uses the trachea that copper or rustless steel are made.
Coal mine gas drainage sealing of hole plugging device the most according to claim 1, it is characterised in that: the height of described flange is 1 ~ 2mm.
Coal mine gas drainage sealing of hole plugging device the most according to claim 1, it is characterised in that: the thickness of described air bag is less than the height of cylindric plug, air bag wall thickness 0.2-0.5mm.
Coal mine gas drainage sealing of hole plugging device the most according to claim 1, it is characterised in that: the plug that described plug is plastics or rubber is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610467514.7A CN105952411A (en) | 2016-06-24 | 2016-06-24 | Plugging device for coal-mine gas extraction hole sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610467514.7A CN105952411A (en) | 2016-06-24 | 2016-06-24 | Plugging device for coal-mine gas extraction hole sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105952411A true CN105952411A (en) | 2016-09-21 |
Family
ID=56903887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610467514.7A Pending CN105952411A (en) | 2016-06-24 | 2016-06-24 | Plugging device for coal-mine gas extraction hole sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105952411A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN114151038A (en) * | 2021-12-09 | 2022-03-08 | 太原理工大学 | Automatic water absorption plugging and hole sealing device for coal bed gas extraction drill hole |
| CN114645543A (en) * | 2022-04-27 | 2022-06-21 | 中国矿业大学 | Fixed-point grouting method and fixed-point grouting device for pile hole in karst area |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101307695A (en) * | 2008-07-09 | 2008-11-19 | 黎凤岐 | Coal mine gas pre-draining borehole sealing method adopting aerated capsule as temporary hole bottom |
| US20100051249A1 (en) * | 2004-04-14 | 2010-03-04 | Panasonic Corporation | Heat exchanger and its manufacturing method |
| CN201723245U (en) * | 2010-05-26 | 2011-01-26 | 义马煤业集团股份有限公司千秋煤矿 | Liquid injection type hole plugging device in gas drainage |
| CN202970606U (en) * | 2012-12-24 | 2013-06-05 | 大同煤矿集团有限责任公司 | Recoverable hole sealer of gas drainage drill hole |
| CN103206190A (en) * | 2013-03-11 | 2013-07-17 | 晋城凤凰实业有限责任公司 | Rapid inflation grouting hole-sealing method |
| CN103590782A (en) * | 2013-11-28 | 2014-02-19 | 华北科技学院 | Under-pressure grouting hole sealing device and method for gas extraction drill air bag blocking |
-
2016
- 2016-06-24 CN CN201610467514.7A patent/CN105952411A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100051249A1 (en) * | 2004-04-14 | 2010-03-04 | Panasonic Corporation | Heat exchanger and its manufacturing method |
| CN101307695A (en) * | 2008-07-09 | 2008-11-19 | 黎凤岐 | Coal mine gas pre-draining borehole sealing method adopting aerated capsule as temporary hole bottom |
| CN201723245U (en) * | 2010-05-26 | 2011-01-26 | 义马煤业集团股份有限公司千秋煤矿 | Liquid injection type hole plugging device in gas drainage |
| CN202970606U (en) * | 2012-12-24 | 2013-06-05 | 大同煤矿集团有限责任公司 | Recoverable hole sealer of gas drainage drill hole |
| CN103206190A (en) * | 2013-03-11 | 2013-07-17 | 晋城凤凰实业有限责任公司 | Rapid inflation grouting hole-sealing method |
| CN103590782A (en) * | 2013-11-28 | 2014-02-19 | 华北科技学院 | Under-pressure grouting hole sealing device and method for gas extraction drill air bag blocking |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN114151038A (en) * | 2021-12-09 | 2022-03-08 | 太原理工大学 | Automatic water absorption plugging and hole sealing device for coal bed gas extraction drill hole |
| CN114151038B (en) * | 2021-12-09 | 2023-07-18 | 太原理工大学 | Automatic water-absorbing, plugging and hole-sealing device for coal bed gas extraction drilling |
| CN114645543A (en) * | 2022-04-27 | 2022-06-21 | 中国矿业大学 | Fixed-point grouting method and fixed-point grouting device for pile hole in karst area |
| CN114645543B (en) * | 2022-04-27 | 2023-01-24 | 中国矿业大学 | Fixed-point grouting method and fixed-point grouting device for pile hole in karst area |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160921 |