CN105971661A - Point injection type hole sealing device - Google Patents
Point injection type hole sealing device Download PDFInfo
- Publication number
- CN105971661A CN105971661A CN201610499857.1A CN201610499857A CN105971661A CN 105971661 A CN105971661 A CN 105971661A CN 201610499857 A CN201610499857 A CN 201610499857A CN 105971661 A CN105971661 A CN 105971661A
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- Prior art keywords
- pipe
- pouch
- real
- real pipe
- hole sealing
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- 238000007789 sealing Methods 0.000 title claims abstract description 47
- 238000002347 injection Methods 0.000 title abstract description 5
- 239000007924 injection Substances 0.000 title abstract description 5
- 239000003245 coal Substances 0.000 claims abstract description 21
- 238000000605 extraction Methods 0.000 claims description 14
- 239000002360 explosive Substances 0.000 claims description 4
- 238000005491 wire drawing Methods 0.000 claims description 3
- 238000005086 pumping Methods 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 6
- 239000007787 solid Substances 0.000 abstract 7
- 238000007569 slipcasting Methods 0.000 description 13
- 238000005553 drilling Methods 0.000 description 7
- 238000010276 construction Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 238000010009 beating Methods 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000011083 cement mortar Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 241000252335 Acipenser Species 0.000 description 1
- 210000004712 air sac Anatomy 0.000 description 1
- VQLYBLABXAHUDN-UHFFFAOYSA-N bis(4-fluorophenyl)-methyl-(1,2,4-triazol-1-ylmethyl)silane;methyl n-(1h-benzimidazol-2-yl)carbamate Chemical compound C1=CC=C2NC(NC(=O)OC)=NC2=C1.C=1C=C(F)C=CC=1[Si](C=1C=CC(F)=CC=1)(C)CN1C=NC=N1 VQLYBLABXAHUDN-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000002940 vitrain Substances 0.000 description 1
Classifications
-
- 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)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention provides a point injection type hole sealing device. The device comprises a pumping section and a hole sealing section, wherein the pumping section comprises a first bored pipe and a second bored pipe which are connected sequentially; the hole sealing section comprises a first solid pipe, a second solid pipe, a third solid pipe and a fourth solid pipe which are connected sequentially; a pointed cone is arranged at the front end of the first bored pipe; the second bored pipe is connected with the first solid pipe; a first bag and a second bag are fixed on the second solid pipe and the fourth solid pipe respectively; baffles are fixed at the front ends and the rear ends of the first bag and the second bag respectively. The device further comprises a pumping pipe and a grouting pipe; the pumping pipe sequentially penetrates through the second bag and the first bag and extends into the second bored pipe; the grouting pipe sequentially penetrates through the second bag and the first bag; the first bag is close to a coal seam and is 1-2 m away from the coal seam. Compared with conventional hole sealing devices, the provided device has a good sealing property, materials are saved, and the single-hole sealing cost is low; the pumping efficiency is improved, and the pumping concentration is high.
Description
Technical field
The present invention relates to control of coalmine gas technical field, specifically a kind of some note formula hole sealing device.
Background technology
Gas pumping is one of important channel of control of coalmine gas.
During base plate lane layer-through drilling uses traditional method sealing of hole, beating the reasons such as fortune difficulty owing to not carrying out preventing slurry injection, stratum crushing and material, cause sealing of hole concentration low, extracting result is poor.In traditional " two block up a note " method for sealing, " outer plug " is general at 1～2m, " interior plug " is usually no more than 20m, its main deficiency existed has: because all there is a relaxation zone in tunnel, so in job location, tunnel must be sprayed, slip casting, its quantities is big, and does not often reach ideal effect；During carrying out " two block up a note " band pressure grouting, due to crack, stratum and relaxation zone reason, sealing material consumption is big, and material consumption is serious；Owing to cement has certain shrinkage ratio, typically boring being noted the most again, if causing sealing material to supply not in time because beating the reasons such as fortune, drilling and sealing quality will be had a strong impact on.
Summary of the invention
The invention aims to solve in prior art the defects such as sealing of hole density difference, it is provided that a kind of some note formula hole sealing device solves the problems referred to above.
The present invention is to be achieved through the following technical solutions above-mentioned technical purpose:
Point note formula hole sealing device, including extraction section, sealing of hole section；Described extraction section includes the first floral tube, the second floral tube sequentially coaxially connected；The first real pipe that described sealing of hole section includes sequentially coaxially connecting, the second real pipe, the 3rd real pipe, the 4th real pipe；Described first floral tube front end is with pointed cone；Described second floral tube is coaxially connected with the described first real pipe；Described second real pipe, the 4th real pipe are respectively fixed with the first pouch, the second pouch；Before and after described first pouch, described second pouch, end is respectively provided with baffle plate；Before and after described first pouch, described second pouch, the baffle plate of end is separately fixed on the described second real pipe, the 4th real pipe；
Described device also includes drainage tube, Grouting Pipe；Described drainage tube sequentially passes through the second pouch, the first pouch stretches in described second floral tube；Described Grouting Pipe sequentially passes through described second pouch, the first pouch；Described first pouch is near coal seam and away from coal seam 1～2m.
Preferably, described first pouch, described second pouch are wrapped in the described second real pipe, the surrounding of the described 4th real pipe respectively.
Preferably, the body in described Grouting Pipe is in described first pouch and described second pouch is provided with non-return valve.
Preferably, the position that described Grouting Pipe is between described first pouch and described second pouch is additionally provided with explosive valve.
Preferably, described baffle plate is the cone being set on the described second real pipe or the described 4th real pipe.
Preferably, the PVC floral tube that described first floral tube is very little at least 2m1 joins end to end；Described second floral tube is that the PVC wire drawing floral tube head and the tail of at least 2m1 cun are coaxially connected.
Preferably, the described first real pipe is that at least 2m1 cun of PVC reality pipe head and the tail are coaxially connected；Described second real pipe is that at least 1m1 cun of PVC reality pipe head and the tail are coaxially connected；Described 3rd real pipe is that at least 4m1 cun of PVC reality pipe head and the tail are coaxially connected；Described 4th real pipe is that at least 1m1 cun of PVC reality pipe head and the tail are coaxially connected.
A kind of some note formula method for sealing, comprises the following steps:
1) down tube: aperture the most lower first floral tube, the second floral tube, the first real pipe, the second real pipe, the 3rd real pipe, the 4th real pipe；Described second floral tube is in coal seam section；Described first floral tube front end is with pointed cone；It is respectively fixed with the first pouch and the second pouch on second real pipe and the 4th real pipe；
2) penetrate two sebific ducts: one sequentially pass through the second pouch, the first pouch stretches in the second floral tube of coal seam section, for drainage tube；Another root enters in the second pouch, the first pouch, for Grouting Pipe；
3) slip casting: carry out slip casting by Grouting Pipe, when grouting pressure stable at 2MPa and above time, slip casting terminates.
Preferably, wherein step 1) in before and after the first pouch and the second pouch end be respectively and fixedly provided with baffle plate.
Preferably, described step 3) in slip casting use the cement mortar that 0.7:1 ratio stirs.
The present invention compared with prior art, has the advantages that
The device that the present invention provides, compared to traditional hole sealing device, good airproof performance, and saves material, and single hole sealing of hole cost reduces；
Improve extraction efficiency, extraction concentration is high；
Two pouches are separately fixed on two 1m long band plate washer PVC reality pipes, and two baffle plate is to ensure that and is not destroyed during entering under pouch.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1.
Detailed description of the invention
By making the architectural feature to the present invention and effect of being reached have a better understanding and awareness, coordinate detailed description in order to preferred embodiment and accompanying drawing, be described as follows:
" front end " that the present invention is previously mentioned is towards boring Li Kou direction.
Embodiment 1
As it is shown in figure 1, a kind of some note formula hole sealing device, including extraction section 1, sealing of hole section 2；Described extraction section 1 includes first floral tube the 11, second floral tube 12 sequentially coaxially connected；Sealing of hole section 2 includes the first real pipe the 22, the 3rd of real pipe 21, the second real pipe 24 of real pipe the 23, the 4th sequentially coaxially connected；First floral tube 11 front end is with pointed cone 111；Second floral tube 12 is coaxially connected with the first real pipe 21；The second real pipe 24 of real pipe the 22, the 4th is respectively fixed with first pouch the 221, second pouch 241；Before and after first pouch the 221, second pouch 241, end is respectively and fixedly provided with baffle plate 25.Before and after first pouch the 221, second pouch 241, end-stopping plate 25 is separately fixed on the second real pipe 24 of real pipe the 22, the 4th.
Device also includes drainage tube 31, Grouting Pipe 32；There is on baffle plate 25 hole passed for drainage tube 31, Grouting Pipe 32.Drainage tube 31 stretches in the second floral tube 12 after sequentially passing through baffle plate the 25, second pouch 241, baffle plate 25, baffle plate the 25, first pouch 221, baffle plate 25；Grouting Pipe 32 sequentially passes through baffle plate the 25, second pouch 241, baffle plate 25, baffle plate the 25, first pouch 221；And there is plug 321 front end of Grouting Pipe 32.First pouch 221, near coal seam section 4 and away from coal seam section 1～2m, makes plugging effect more preferable.
First pouch the 221, second pouch 241 is wrapped in the surrounding of the second real pipe 24 of real pipe the 22, the 4th respectively.
Grouting Pipe 32 is on the body in the first pouch 221 and the second pouch 241 and is provided with non-return valve (not shown).
The position that Grouting Pipe 32 is between the first pouch 221 and the second pouch 241 is additionally provided with explosive valve 322.
Baffle plate 25 is the cone being set on the second real pipe 22 or the 4th real pipe 24.
First floral tube 11 is that the PVC Air Bladder pseudosciaenae seu Acipenser pipe head and the tail of at least 2m1 cun are coaxially connected；Second floral tube 12 is that the PVC wire drawing floral tube head and the tail of at least 2m1 cun are coaxially connected.
First real pipe 21 is that at least 2m1 cun of PVC reality pipe head and the tail are coaxially connected；Second real pipe 22 is that at least 1m1 cun of PVC reality pipe head and the tail are coaxially connected；3rd real pipe 23 is that at least 4m1 cun of PVC reality pipe head and the tail are coaxially connected；4th real pipe 24 is that at least 1m1 cun of PVC reality pipe head and the tail are coaxially connected.
Embodiment 2
A kind of some note formula method for sealing, comprises the following steps:
Step 1. down tube: the aperture 5 the most lower first real pipe of floral tube the 11, second floral tube 12, first 21, second real pipe the 22, the 3rd real pipe 24 of real pipe the 23, the 4th；Second floral tube 12 is in coal seam section 4；
Wherein the first floral tube 11 front end is with pointed cone 111；It is respectively fixed with the first pouch 221 and the second pouch 241 on second real pipe 22 and the 4th real pipe 24, and end is respectively fixed with baffle plate 25 before and after the first pouch 221 and the second pouch 241；
Step 2. penetrates two sebific ducts: one sequentially passes through in the second floral tube 12 that second pouch the 241, first pouch 221 stretches to coal seam section 4, for drainage tube 31；Another root enters in second pouch the 241, first pouch 221, for Grouting Pipe 32；
Step 3. slip casting: carry out slip casting by Grouting Pipe 32, when grouting pressure stable at 2MPa and above time, slip casting terminates.
In step 3, slip casting uses the cement mortar that 0.7:1 ratio stirs.
In specific works, drainage tube quantity computed in advance, it is ensured that the first pouch 221 is sealed to 1 under coal seam section 4～2m position.Cement grout is configured in strict accordance with ratio of mud 0.7:1.Early stage slip casting injection speed to be slowed down, it is ensured that pouch spreading, explosive valve are normally opened.Injection speed can be somewhat accelerated during follow-up slip casting.Grouting pressure stable at 2MPa and above after can stop slip casting.Hole-sealing grouting can close a batch extraction after terminating 24h, in order to avoid affecting sealing of hole effect.In time single hole concentration is measured, when single hole concentration do not reach require time, open-work to be carried out, again sealing of hole.
Embodiment 3
Certain rail is along second unit scene, a base plate lane employing point note formula sealing of hole extraction condition of construction:
(1) coalbed gas geology situation
Drilling construction wears 13-1 coal seam, and 13-1 coal estimates gas pressure 1.02Mpa, gas bearing capacity 6.08m3/t.13-1 coal is black, block, powder, streak black, and based on bright coal, dull coal takes second place, a small amount of vitrain, glassy lustre, belongs to half bright moulded coal, average coal thickness 4.4m.
13-1 coal top board is micro-close Sandy Silt, thickness about 4m；Base plate is fine and close mud stone, thickness about 1.6m.Drilling construction perforated layer is Sandy Silt.
(2) drilling design
Certain rail designs 37 groups, 370 holes, often group spacing 10 meters altogether along the second evaluation unit length 327.5m, region measure boring, and local structure region takes encryption measures often to organize spacing 5 meters, often 10 borings of group, and about 16500m is measured in boring.
(3) drilling construction situation
Certain rail, along the second evaluation unit, starts construction, construction drill 141 on May 8th, 2015, and 14 groups altogether, wherein 80 borings altogether of 1-8 group use " some note formula sealing of hole " mode to carry out sealing of hole test, and remaining uses " one blocks up many notes " mode to carry out sealing of hole.1-8 group test drilling concentration is investigated, such as following table:
Table 1:
Table 2
Certain rail investigates record (the 2nd group) along base plate lane second unit boring concentration
Table 3
Table 4
Table 5
Table 6
Table 7
Table 8
Four, the effect obtained
1, material is saved.About about 360 yuan/hole of single hole sealing of hole expense, between pouch sealing of hole section 2 to extraction main, without 1 PVC sleeve pipe, 2 ferules, slip casting, 2 extraction sebific ducts and 2 pipe clamps etc., and use traditional handicraft, single hole sealing of hole and conjunction stubble expense reach 1914 yuan/hole, single hole cost reduction by 80%, 1-8 group 80 boring, save nearly 12.5 ten thousand yuan of fee of material.
2, improve extracting result.Actual measurement extraction concentration single hole reaches more than 70%, single hole scale 0.03m3/min, and the first evaluation unit uses port closing to carry out " stifled many notes " technique sealing of hole, hole pumping and mining concentration less than 20%, single hole extraction pure flow only 0.005m3/min.
Five, several conventional hole-sealing technologies contrast table
Several conventional hole-sealing technology of table 9 contrast table (by hole depth 70m)
The ultimate principle of the present invention, 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 of the simply present invention described in above-described embodiment and description; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements both fall within the range of claimed invention.The protection domain of application claims is defined by appending claims and equivalent thereof.
Claims (7)
1. a note formula hole sealing device, it is characterised in that: include extraction section, sealing of hole section；Described extraction section includes sequentially coaxially connecting
The first floral tube, the second floral tube；The first real pipe that described sealing of hole section includes sequentially coaxially connecting, the second real pipe, the 3rd real pipe,
4th real pipe；Described first floral tube front end is with pointed cone；Described second floral tube is coaxially connected with the described first real pipe；Institute
State and be respectively fixed with the first pouch, the second pouch on the second real pipe, the 4th real pipe；Described first pouch, described second pouch
Front and back end is respectively provided with baffle plate；Before and after described first pouch, described second pouch the baffle plate of end be separately fixed at described second real pipe,
On 4th real pipe；
Described device also includes drainage tube, Grouting Pipe；Described drainage tube sequentially passes through the second pouch, the first pouch stretches into described
In two floral tubes；Described Grouting Pipe sequentially passes through described second pouch, the first pouch；Described first pouch is near coal seam and away from coal seam
1～2m.
Point note formula hole sealing device the most according to claim 1, it is characterised in that: described first pouch, described second pouch
It is wrapped in the described second real pipe, the surrounding of the described 4th real pipe respectively.
Point note formula hole sealing device the most according to claim 1, it is characterised in that: described Grouting Pipe is in described first pouch
It is provided with non-return valve with on the body in described second pouch.
Point note formula hole sealing device the most according to claim 1, it is characterised in that: described Grouting Pipe is in described first pouch
With the position between described second pouch is additionally provided with explosive valve.
Point note formula hole sealing device the most according to claim 1, it is characterised in that: described baffle plate is real for being set in described second
Cone on pipe or the described 4th real pipe.
Point note formula hole sealing device the most according to claim 1, it is characterised in that: described first floral tube is at least 2m1
Very little PVC floral tube head and the tail are coaxially connected；Described second floral tube is that the PVC wire drawing floral tube head and the tail of at least 2m1 cun are coaxially connected.
Point note formula hole sealing device the most according to claim 1, it is characterised in that: the described first real pipe is at least 2m1
Very little PVC reality pipe head and the tail are coaxially connected；Described second real pipe is that at least 1m1 cun of PVC reality pipe head and the tail are coaxially connected；Described
Three real pipes are that at least 4m1 cun of PVC reality pipe head and the tail are coaxially connected；Described 4th real pipe is at least 1m1 cun of real pipe of PVC
The most coaxially connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610499857.1A CN105971661A (en) | 2016-06-28 | 2016-06-28 | Point injection type hole sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610499857.1A CN105971661A (en) | 2016-06-28 | 2016-06-28 | Point injection type hole sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105971661A true CN105971661A (en) | 2016-09-28 |
Family
ID=56953943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610499857.1A Pending CN105971661A (en) | 2016-06-28 | 2016-06-28 | Point injection type hole sealing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN105971661A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050297A (en) * | 2016-06-28 | 2016-10-26 | 淮南矿业(集团)有限责任公司 | Point injection type hole sealing method and device |
| CN106481335A (en) * | 2016-10-21 | 2017-03-08 | 淮南矿业(集团)有限责任公司 | A kind of point note formula hole-sealing pressure measuring device and method |
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| CN103195388A (en) * | 2013-03-28 | 2013-07-10 | 郑州煤炭工业(集团)有限责任公司 | Two-plugging hole packer and plugging grouting method |
| CN103967444A (en) * | 2013-01-30 | 2014-08-06 | 河南煤业化工集团研究院有限责任公司 | Gas extraction hole drilling hole sealing technology in manner of two-end self-blocking and under pressure |
| CN203756114U (en) * | 2014-03-28 | 2014-08-06 | 淮南矿业(集团)有限责任公司 | Grouting hole packer with capsular bag |
| CN104314508A (en) * | 2014-08-19 | 2015-01-28 | 徐州中矿贝壳迈宁矿业科技有限公司 | Hole sealing method for coal bed gas drainage drill hole |
| CN105545250A (en) * | 2016-01-21 | 2016-05-04 | 淮南久辉工贸有限责任公司 | Deep sealing type hole sealing device and hole sealing method |
| CN205858406U (en) * | 2016-06-28 | 2017-01-04 | 淮南矿业(集团)有限责任公司 | A kind of some note formula hole sealing device |
-
2016
- 2016-06-28 CN CN201610499857.1A patent/CN105971661A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103967444A (en) * | 2013-01-30 | 2014-08-06 | 河南煤业化工集团研究院有限责任公司 | Gas extraction hole drilling hole sealing technology in manner of two-end self-blocking and under pressure |
| CN103195388A (en) * | 2013-03-28 | 2013-07-10 | 郑州煤炭工业(集团)有限责任公司 | Two-plugging hole packer and plugging grouting method |
| CN203756114U (en) * | 2014-03-28 | 2014-08-06 | 淮南矿业(集团)有限责任公司 | Grouting hole packer with capsular bag |
| CN104314508A (en) * | 2014-08-19 | 2015-01-28 | 徐州中矿贝壳迈宁矿业科技有限公司 | Hole sealing method for coal bed gas drainage drill hole |
| CN105545250A (en) * | 2016-01-21 | 2016-05-04 | 淮南久辉工贸有限责任公司 | Deep sealing type hole sealing device and hole sealing method |
| CN205858406U (en) * | 2016-06-28 | 2017-01-04 | 淮南矿业(集团)有限责任公司 | A kind of some note formula hole sealing device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050297A (en) * | 2016-06-28 | 2016-10-26 | 淮南矿业(集团)有限责任公司 | Point injection type hole sealing method and device |
| CN106481335A (en) * | 2016-10-21 | 2017-03-08 | 淮南矿业(集团)有限责任公司 | A kind of point note formula hole-sealing pressure measuring device and method |
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Application publication date: 20160928 |