CN202578754U - Pumping draining device for high-concentration gas of drilled holes - Google Patents
Pumping draining device for high-concentration gas of drilled holes Download PDFInfo
- Publication number
- CN202578754U CN202578754U CN 201220186759 CN201220186759U CN202578754U CN 202578754 U CN202578754 U CN 202578754U CN 201220186759 CN201220186759 CN 201220186759 CN 201220186759 U CN201220186759 U CN 201220186759U CN 202578754 U CN202578754 U CN 202578754U
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- Prior art keywords
- sealing
- pipe
- storage tank
- pumping
- hole
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- Expired - Fee Related
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- 238000005086 pumping Methods 0.000 title abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 50
- 238000003860 storage Methods 0.000 claims abstract description 26
- 239000007788 liquid Substances 0.000 claims abstract description 22
- 229920002635 polyurethane Polymers 0.000 claims abstract description 20
- 239000004814 polyurethane Substances 0.000 claims abstract description 20
- 238000006243 chemical reaction Methods 0.000 claims abstract description 17
- 239000002775 capsule Substances 0.000 claims abstract description 16
- 238000002347 injection Methods 0.000 claims abstract description 12
- 239000007924 injection Substances 0.000 claims abstract description 12
- 238000007906 compression Methods 0.000 claims abstract description 9
- 230000006835 compression Effects 0.000 claims abstract description 8
- 210000003097 mucus Anatomy 0.000 claims description 21
- 238000000605 extraction Methods 0.000 claims description 17
- 239000003245 coal Substances 0.000 abstract description 14
- 238000000034 method Methods 0.000 description 6
- 239000011083 cement mortar Substances 0.000 description 2
- 230000023753 dehiscence Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
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- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
A pumping draining device for high-concentration gas of drilled holes is suitable for gas pumping draining of various drilled holes in a coal mine. Two hole sealing capsules or polyurethane reaction bags, which are arranged in a front and back mode, are arranged in a pumping draining drilled hole. After the two hole sealing capsules or polyurethane reaction bags are fully expanded, pressing air in the coal mine is utilized to enable hole sealing adhering liquid in an adhering liquid tank to be injected between the two hole sealing capsules or polyurethane reaction bags arranged in the front and back mode through a liquid injection pipe, and gas in the drilled hole enters a normal-pressure storage tank through a pumping pipe or a draining pipe and is stored in a high-pressure storage tank through a compression pump. The pumping draining device comprises a sealing device and a storing device. The sealing device comprises the two hole sealing capsules or polyurethane reaction bags, the liquid injection pipe and the adhering liquid tank. The storing device comprises the pumping pipe or the draining pipe, the normal-pressure storage tank, the compression pump and the high-pressure storage tank. The pumping draining device solves the problem that holes and cracks around the pumping draining drilled hole cannot be sealed tightly at present and is simple in structure, easy to operate and low in fabricating cost, and concentration of pumped and drained gas is high.
Description
Technical field
The utility model relates to a kind of pump drainage device for picking of the high concentration gas of holing, and adopts applicable to the boring gas exhaust in places such as coal-face, stone door punching coal place, coal road or rock gangway under the coal mine.
Background technology
The gas disaster is one of main natural calamity of China's coal-mine, has become the principal contradiction of restriction Safety of Coal Mine Production at present.Through construction drill extraction coal-bed gas is the important means that the gas disaster is administered in the colliery.In coal mine gas extraction work, the sealing quality of boring is the key factor of extraction effect.
At present, the most frequently used method of gas pumping sealing of hole is to carry out sealing of hole with polyurethane, and the hole packer that is about to twine polyurethane material is put into coal bed drilling, relies on polyurethane generation chemical reaction to expand, and realizes the purpose to drilling and sealing, carries out the extraction of gas then.Also having a kind of method for sealing is exactly in the middle of two sections polyurethane materials, to inject cement mortar, utilizes the flowability of cement mortar to penetrate in the porous dehiscence crack in coal seam, after waiting to the cement solidifies, begins gas is carried out extraction.The principle of these two kinds of method for sealing all is to utilize solid matter envelope gaseous matter, can know from the measuring technique of gas pressure in coal seam (CN 85106104A) of Zhou Shining academician's utility model: the crack that the solids of sealing of hole can not tight sealing borehole circumference.
Because gas pumping through the regular period; The coal seam can be because of distortion, displacement; Cause the expansion of porous dehiscence crack, the growth in borehole circumference coal seam, at this moment extraneous air will get in the boring of bleeding from the crack passage, thereby causes gas pumping concentration obviously to descend; Shorten effective extraction phase of extraction borehole, reduced the utilization rate of boring.In addition, when being reduced in the gas explosion limiting value 16%, can have a strong impact on the safety of gas pumping system by the gas density of pump drainage.
Summary of the invention
Technical problem: the purpose of the utility model is to the problem that exists in the prior art, and the pump drainage device for picking of low, the effective boring high concentration gas of a kind of simple in structure, processing ease, cost is provided.
Technical scheme: the pump drainage device for picking of the boring high concentration gas of the utility model comprises sealing device and storage device two large divisions; Described sealing device comprises that former and later two sealing of hole capsules or the polyurethane reaction bag, the end that are located in the boring enter into the liquid injection pipe between former and later two sealing of hole capsules or the polyurethane reaction bag, the mucus jar that links to each other with the liquid injection pipe exposed junction, are respectively equipped with pressure wind interface and liquid feeding mouth on the mucus jar; Described storage device comprise an end enter into extraction pipe or row in the boring adopt pipe, with the high pressure storage tank that extraction pipe or row adopt the atmospheric storage tank of managing exposed junction and linking to each other, the compression pump that links to each other with atmospheric storage tank, link to each other with compression pump, high pressure storage tank is provided with pressure meter.
Described mucus jar bottom is provided with the mucus tank bracket.
Beneficial effect: the utility model adopts annotates mucus to the sealing of gas exhaust borehole enforcement permeability; Sealing of hole mucus not only can be full of space, the natural crack around the infiltration boring and the crack of unloading trim ring between former and later two sealing of hole capsules or the polyurethane reaction bag; And it is the sealing under the motion state; When adopting in the process at gas pumping or row; New crack has appearred in the boring, also can be in time with its tight sealing, and having solved present sealing of hole can not tight sealing pump drainage borehole perimeter hole, the difficult problem in crack.Former and later two sealing of hole capsules or the distance between the polyurethane reaction bag of implementing notes mucus are shorter, can save the needed input cost of sealing of hole.Because borehole sealing property is high, the interior gas density of extracting out or discharging is higher from holing.The utility model not only can be used for mash gas extraction, also can be used to arrange mash gas, has realized adopting from gas exhaust a whole set of function of compressing storing, and it is simple in structure, cost is low, can be widely used under the coal mine gas exhaust of various borings and adopt.
Description of drawings
Fig. 1 is the apparatus structure sketch map of the utility model.
Among the figure: 1-boring, 2-extraction pipe or row adopt pipe, 3-sealing of hole capsule or polyurethane reaction bag, 4-liquid injection pipe, 5-mucus jar; 6-presses wind interface, 7-liquid feeding mouth, 8-sealing of hole mucus, 9-mucus tank bracket; The 10-atmospheric storage tank, 11-compression pump, 12-high pressure storage tank, 13-pressure meter.
The specific embodiment
Below in conjunction with accompanying drawing the embodiment of the utility model is done further description:
The pump drainage device for picking of the boring high concentration gas of the utility model mainly is made up of sealing device and storage device two large divisions; Described sealing device is formed by being located at former and later two sealing of hole capsules or polyurethane reaction bag 3, liquid injection pipe 4, the mucus jar 5 of boring in 1; Be marked with the sealing of hole mucus of injecting through liquid injection pipe 48 in the hole between former and later two sealing of hole capsules or the polyurethane reaction bag 3; Mucus jar 5 tops are respectively equipped with presses wind interface 6 and liquid feeding mouth 7; Liquid feeding mouth 7 places can be provided with one way valve; Mucus jar 5 bottoms are provided with mucus tank bracket 9, and an end of liquid injection pipe 4 enters between former and later two sealing of hole capsules or the polyurethane reaction bag 3, and the exposed junction of liquid injection pipe 4 connects mucus jar 5; Said storage device is adopted pipe 2, atmospheric storage tank 10, compression pump 11 and high pressure storage tank 12 by extraction pipe or row and is formed; The end that extraction pipe or row adopt pipe 2 enters in the boring 1; The exposed junction that extraction pipe or row adopt pipe 2 connects atmospheric storage tank 10; Atmospheric storage tank 10 links to each other with high pressure storage tank 12 through compression pump 11, and high pressure storage tank 12 is provided with pressure meter 13.
Operating principle: inject the mucus pore-sealing liquid in the space between latter two sealing of hole capsule or the polyurethane reaction bag 3 forward through liquid injection pipe 4; The mucus pore-sealing liquid infiltrates the natural crack around the boring and unloads in the crack of trim ring; Can be in time gas pumping or row be adopted and occur new crack in the process in the boring and carry out tight sealing, having solved present sealing of hole can not tight sealing pump drainage borehole perimeter hole, the difficult problem in crack.Former and later two sealing of hole capsules or the distance between the polyurethane reaction bag of implementing notes mucus are 0.5-5m than weak point, can save the needed input cost of sealing of hole, and the sealing of boring height, thereby it is higher to have improved the interior gas density of extracting out or discharging of holing.Not only can be used for mash gas extraction, also can be used to arrange mash gas, realize adopting from gas exhaust a whole set of function of compressing storing, it is simple in structure, cost is low, can be widely used under the coal mine gas exhaust of various borings and adopt.
Claims (2)
1. the pump drainage device for picking of the high concentration gas of holing, it is characterized in that: it comprises sealing device and storage device two large divisions; Described sealing device comprises that former and later two sealing of hole capsules of being located in the boring (1) or polyurethane reaction bag (3), an end enter into the liquid injection pipe (4) between former and later two sealing of hole capsules or the polyurethane reaction bag (3), the mucus jar (5) that links to each other with liquid injection pipe (4) exposed junction, are respectively equipped with pressure wind interface (6) and liquid feeding mouth (7) on the mucus jar (5); Described storage device comprise an end enter into extraction pipe or row in the boring (1) adopt pipe (2), with the high pressure storage tank (12) that extraction pipe or row adopt the atmospheric storage tank (10) that pipe (2) exposed junction links to each other, the compression pump (11) that links to each other with atmospheric storage tank (10), link to each other with compression pump (11), high pressure storage tank (12) is provided with pressure meter (13).
2. the pump drainage device for picking of boring high concentration gas according to claim 1 is characterized in that: described mucus jar (5) bottom is provided with mucus tank bracket (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220186759 CN202578754U (en) | 2012-04-28 | 2012-04-28 | Pumping draining device for high-concentration gas of drilled holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220186759 CN202578754U (en) | 2012-04-28 | 2012-04-28 | Pumping draining device for high-concentration gas of drilled holes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202578754U true CN202578754U (en) | 2012-12-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220186759 Expired - Fee Related CN202578754U (en) | 2012-04-28 | 2012-04-28 | Pumping draining device for high-concentration gas of drilled holes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202578754U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704984A (en) * | 2012-04-28 | 2012-10-03 | 中国矿业大学 | Borehole high-concentration gas extraction and drainage method and device thereof |
| CN103470212A (en) * | 2013-07-15 | 2013-12-25 | 中国矿业大学 | Active drilling and hole sealing device and method |
| CN105201546A (en) * | 2015-09-21 | 2015-12-30 | 河南理工大学 | Device and method for improving gas extraction concentration |
| CN109458213A (en) * | 2018-11-29 | 2019-03-12 | 河南焦煤能源有限公司 | A kind of high position extraction lane bottom plate automatic leak detection and blocking method |
-
2012
- 2012-04-28 CN CN 201220186759 patent/CN202578754U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704984A (en) * | 2012-04-28 | 2012-10-03 | 中国矿业大学 | Borehole high-concentration gas extraction and drainage method and device thereof |
| CN102704984B (en) * | 2012-04-28 | 2014-12-17 | 中国矿业大学 | Borehole high-concentration gas extraction and drainage method and device thereof |
| CN103470212A (en) * | 2013-07-15 | 2013-12-25 | 中国矿业大学 | Active drilling and hole sealing device and method |
| CN103470212B (en) * | 2013-07-15 | 2016-02-24 | 中国矿业大学 | Active drilling and hole sealing device and method |
| CN105201546A (en) * | 2015-09-21 | 2015-12-30 | 河南理工大学 | Device and method for improving gas extraction concentration |
| CN109458213A (en) * | 2018-11-29 | 2019-03-12 | 河南焦煤能源有限公司 | A kind of high position extraction lane bottom plate automatic leak detection and blocking method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20150428 |
|
| EXPY | Termination of patent right or utility model |