CN106050297A - Point injection type hole sealing method and device - Google Patents
Point injection type hole sealing method and device Download PDFInfo
- Publication number
- CN106050297A CN106050297A CN201610499800.1A CN201610499800A CN106050297A CN 106050297 A CN106050297 A CN 106050297A CN 201610499800 A CN201610499800 A CN 201610499800A CN 106050297 A CN106050297 A CN 106050297A
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- Prior art keywords
- pouch
- pipe
- tube
- real
- real pipe
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- 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.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
Abstract
The invention provides a point injection type hole sealing method. The point injection type hole sealing method comprises the following steps of (1) tube installation, specifically, a first floral tube, a second floral tube, a first solid tube, a second solid tube, a third solid tube and a fourth solid tube are installed inwards from hole orifices, the second floral tube is located on a coal bed section, the front end of the first floral tube is provided with a pointed cone, and a first bag and a second bag are fixed to the second floral tube and the fourth solid tube correspondingly; (2) penetration of two rubber tubes, specifically, one rubber tube sequentially penetrates through the second bag and the first bag to stretch into the second floral tube on the coal bed section and is an extraction tube, and the other rubber tube enters the second bag and the first bag and is a grouting tube; and (3) grouting, specially, grouting is conducted through the grouting tube, and grouting is ended when the grouting pressure is stabilized at 2 MPa or over. Compared with the prior art, the point injection type hole sealing method has the advantage that construction is more convenient since material consumption is low and procedures are simple.
Description
Technical field
The present invention relates to control of coalmine gas technical field, specifically a kind of some note formula method for sealing and device thereof.
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, owing to not carrying out preventing slurry injection, stratum crushing and material
The reasons such as fortune difficulty beaten by material, cause sealing of hole concentration low, and extracting result is poor.Traditional " two block up a note " method for sealing " blocks up outward
Head " it is general that at 1～2m, " interior plug " is usually no more than 20m, and its main deficiency existed has: because tunnel all has one to loosen
Circle, thus in job location, tunnel must be sprayed, slip casting, its quantities is big, and does not often reach ideal effect；Carry out
During " 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 tight
Weight；Owing to cement has certain shrinkage ratio, typically boring is noted the most again, if causing sealing material because beating the reasons such as fortune
Supply not in time, will have a strong impact on drilling and sealing quality.
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 sealing of hole
Method solves the problems referred to above.
The present invention is to be achieved through the following technical solutions above-mentioned technical purpose:
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
Four real pipes；Described second floral tube is in coal seam section；Described first floral tube front end is with pointed cone；Second real pipe and the 4th real Guan Shangfen
It is not fixed with the first pouch and the second pouch；
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 is respectively and fixedly provided with baffle plate；And described
One pouch is near coal seam and away from coal seam 1～2m.
Preferably, described step 3) in slip casting use the cement mortar that 0.7:1 ratio stirs.
The present invention also provides for the some note formula hole sealing device for said method, including extraction section, sealing of hole section；Described extraction section
Including the first floral tube sequentially coaxially connected, the second floral tube；The first real pipe that described sealing of hole section includes sequentially coaxially connecting, 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 real with described first
Manage coaxially connected；Described second real pipe, the 4th real pipe are respectively fixed with the first pouch, the second pouch；Described first pouch,
Before and after 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 solid respectively
It is scheduled 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 into institute
State in the second floral tube；Described Grouting Pipe sequentially passes through described second pouch, the first pouch；Described first pouch 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 described 4th real pipe respectively
Surrounding.
Preferably, the body in described Grouting Pipe is in described first pouch and described second pouch is provided with check
Valve.
Preferably, the position that described Grouting Pipe is between described first pouch and described second pouch is additionally provided with explosion
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 head and the tail that described first floral tube is very little at least 2m1 are the most coaxially connected；Described second floral tube
The PVC wire drawing floral tube head and the tail being 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
At least one 1m1 cun 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 coaxially connect
Connect；Described 4th real pipe is that at least 1m1 cun of PVC reality pipe head and the tail are coaxially connected.
The present invention compared with prior art, has the advantages that
This method is compared to traditional method, and because of few with material, operation is simple, constructs more convenient；
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 becomes
This reduction；
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 under pouch
Journey is not destroyed.
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, in order to preferably
Embodiment and accompanying drawing coordinate detailed description, are described as follows:
" front ", " 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 successively
First coaxially connected floral tube the 11, second floral tube 12；Sealing of hole section 2 includes the first real real pipe of pipe 21, second sequentially coaxially connected
22, the 3rd real pipe 24 of real pipe the 23, the 4th；First floral tube 11 front end is with pointed cone 111；Second floral tube 12 is coaxial with the first real pipe 21
Connect；The second real pipe 24 of real pipe the 22, the 4th is respectively fixed with first pouch the 221, second pouch 241；In the first pouch
221, before and after the second pouch 241, end is respectively and fixedly provided with baffle plate 25.End-stopping plate 25 points before and after first pouch the 221, second pouch 241
It is not 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 into second after sequentially passing through baffle plate the 25, second pouch 241, baffle plate 25, baffle plate the 25, first pouch 221, baffle plate 25
In floral tube 12；Grouting Pipe 32 sequentially passes through baffle plate the 25, second pouch 241, baffle plate 25, baffle plate the 25, first pouch 221；And slip casting
There is plug 321 front end of 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 in and is provided with non-return valve on the body in the first pouch 221 and the second pouch 241 and (does not shows in figure
Go out).
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 at least one
The PVC wire drawing floral tube head and the tail of 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 at least 1m1
Very little 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
It 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
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 first on second real pipe 22 and the 4th real pipe 24
Pouch 221 and the second pouch 241, and end is respectively and fixedly provided 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 second pouch the 241, first pouch 221 and stretches to coal seam section 4
In second floral tube 12, 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, explosion
Valve is normally opened.Injection speed can be somewhat accelerated during follow-up slip casting.Grouting pressure stable at 2MPa and above after can stop note
Slurry.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, work as list
Hole concentration does not reaches when requiring, 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
For black, bulk, powder, streak black, 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 altogether along the second evaluation unit length 327.5m, region measure boring, often organizes spacing
10 meters, 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 on May 8th, 2015 to construct, construction drill 141,14 groups altogether, its
Middle 1-8 group amounts to 80 borings and uses " some note formula sealing of hole " mode to carry out sealing of hole test, and remaining uses " stifled many notes " mode to enter
Row 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, it is not necessary to 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 take
With reaching 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 first
Evaluation unit uses port closing to carry out " one stifled many note " technique sealing of hole, hole pumping and mining concentration less than 20%, the pure stream of single hole extraction
Measure 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.The technology of the industry
The personnel simply present invention it should be appreciated that the present invention is not restricted to the described embodiments, described in above-described embodiment and description
Principle, the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, these change and
Improvement both falls within the range of claimed invention.The protection domain of application claims by appending claims and
Equivalent defines.
Claims (10)
1. a some note formula method for sealing, it is characterised in that: comprise 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；On second real pipe and the 4th real pipe respectively admittedly
Surely there are the first pouch and the second pouch；
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 taking out
Adopt pipe；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.
A kind of some note formula sealing of hole method for sealing the most according to claim 1, it is characterised in that: wherein step 1) in, the
Before and after one pouch and the second pouch, end is respectively and fixedly provided with baffle plate；And described first pouch is near coal seam and away from coal seam 1～2m.
A kind of some note formula sealing of hole method for sealing the most according to claim 1, it is characterised in that: described step 3) in slip casting adopt
Be the cement mortar that stirs of 0.7:1 ratio.
4. a some note formula hole sealing device, it is characterised in that: described some note formula hole sealing device is applied to the claims 1 to 3
In arbitrary method for sealing；Including extraction section, sealing of hole section；Described extraction section includes the first floral tube, the second flower sequentially coaxially connected
Pipe；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 flower
Pipe front end is with pointed cone；Described second floral tube is coaxially connected with the described first real pipe；At the described second real pipe, the 4th real pipe
On be 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；Institute
The baffle plate held before and after stating the first pouch, described second pouch 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 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.
A kind of some note formula hole sealing device the most according to claim 4, it is characterised in that: described first pouch, described second
Pouch is wrapped in the described second real pipe, the surrounding of the described 4th real pipe respectively.
A kind of some note formula hole sealing device the most according to claim 4, it is characterised in that: described Grouting Pipe is in described first
It is provided with non-return valve on body in pouch and described second pouch.
A kind of some note formula hole sealing device the most according to claim 4, it is characterised in that: described Grouting Pipe is in described first
Position between pouch and described second pouch is additionally provided with explosive valve.
A kind of some note formula hole sealing device the most according to claim 4, it is characterised in that: described baffle plate is for being set in described the
Cone on two real pipes or the described 4th real pipe.
Point note formula hole sealing device the most according to claim 4, 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 4, 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 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 at least 1m1 cun of PVC reality pipe head and the tail
Coaxially connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610499800.1A CN106050297A (en) | 2016-06-28 | 2016-06-28 | Point injection type hole sealing method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610499800.1A CN106050297A (en) | 2016-06-28 | 2016-06-28 | Point injection type hole sealing method and device |
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| Publication Number | Publication Date |
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| CN106050297A true CN106050297A (en) | 2016-10-26 |
Family
ID=57200271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610499800.1A Pending CN106050297A (en) | 2016-06-28 | 2016-06-28 | Point injection type hole sealing method and device |
Country Status (1)
| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209300A (en) * | 2018-09-14 | 2019-01-15 | 辽宁工程技术大学 | A kind of anti-collapse hole method for sealing of complete opening depth sieve pipe of deep fractures drilling |
| CN111852327A (en) * | 2020-08-14 | 2020-10-30 | 安徽铜冠（庐江）矿业有限公司 | Water outlet and control method for filling and drilling construction |
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| CN105971661A (en) * | 2016-06-28 | 2016-09-28 | 淮南矿业(集团)有限责任公司 | Point injection type hole sealing device |
| 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 |
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- 2016-06-28 CN CN201610499800.1A patent/CN106050297A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
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| 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 |
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| CN105971661A (en) * | 2016-06-28 | 2016-09-28 | 淮南矿业(集团)有限责任公司 | Point injection type hole sealing device |
| 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 |
|---|---|---|---|---|
| CN109209300A (en) * | 2018-09-14 | 2019-01-15 | 辽宁工程技术大学 | A kind of anti-collapse hole method for sealing of complete opening depth sieve pipe of deep fractures drilling |
| CN111852327A (en) * | 2020-08-14 | 2020-10-30 | 安徽铜冠（庐江）矿业有限公司 | Water outlet and control method for filling and drilling construction |
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