CN102966371B - Drainage borehole plugging device and method - Google Patents
Drainage borehole plugging device and method Download PDFInfo
- Publication number
- CN102966371B CN102966371B CN201110256628.4A CN201110256628A CN102966371B CN 102966371 B CN102966371 B CN 102966371B CN 201110256628 A CN201110256628 A CN 201110256628A CN 102966371 B CN102966371 B CN 102966371B
- Authority
- CN
- China
- Prior art keywords
- drainage
- capsule
- elasticity sealing
- hole
- hole capsule
- 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.)
- Active
Links
Abstract
The invention provides a drainage borehole plugging device and a drainage borehole plugging method. The device comprises a drainage pipe and an elastic borehole plugging capsule. One end of the drainage pipe is inserted into a gas drainage borehole. The elastic borehole plugging capsule is fixedly sheathed on the outer wall of the middle part of the drainage pipe. The two ends of the elastic borehole plugging capsule are hermetically fixed with the outer wall of the drainage pipe. A chamber is formed between the middle part of the elastic borehole plugging capsule and the outer wall surface of the drainage pipe. A grout injection port and a grout outlet are respectively arranged at the one end of the chamber body adjacent to the mouth of the drainage borehole. The drainage borehole plugging device and the drainage borehole plugging method provided by the invention have the advantages that since grout injection for plugging is implemented after the elastic borehole plugging capsule is expanded by using grout injection pressure and the functions of plugging and grout injection are integrated in the same device, the plugging and grout injection process is simplified, the air leakage is reduced through elastic sealing of the elastic borehole plugging capsule and the plugging effect is better.
Description
Technical field
The present invention relates to coal mine gas extraction technology, particularly relate to a kind of gas drainage drill hole plugging device and method.
Background technology
Mine Gas is one of known mine disaster, in order to reduce or eliminate the safety hazard of gas to shaft production, can be solved the gas emission in coal mining and tunneling process by the gas shifting to an earlier date extraction coal seam.Existing gas pumping technology on the drainage tube of drainage holes from 12 meters of, aperture, carries out shutoff by sea-tangle or polyurethane fix, and polyurethane or sea-tangle shutoff are fixed tight, and during slip casting, cement paste easily by space, block section, causes taking out less than gas.
Summary of the invention
The invention provides a kind of gas drainage drill hole plugging device and method, for carrying out shutoff to the drainage holes offered downwards, reducing gas leakage, improving plugging effect.
The invention provides a kind of gas drainage drill hole plugging device, wherein, comprising:
Drainage tube, one end is plugged in drainage holes;
Elasticity sealing of hole capsule, fixed cover is located on the outer wall in the middle part of described drainage tube, the described two ends of elasticity sealing of hole capsule and the outer wall of described drainage tube seal fixing, form cavity between the middle part of described elasticity sealing of hole capsule and the outside wall surface of described drainage tube, the two ends of described cavity are respectively arranged with grouting port and grout outlet.
Present invention also offers a kind of extraction borehole method for blocking, wherein, adopt gas drainage drill hole plugging device provided by the invention to carry out shutoff, comprising:
By corresponding for elasticity sealing of hole capsule inner at the drainage holes away from drainage holes orifice position, in drainage holes, insert drainage tube;
In the cavity between elasticity sealing of hole capsule and drainage tube, inject slurries by grouting port, when judging drainage holes described in the complete shutoff of elasticity sealing of hole capsule, grouting under pressure, fixes described elasticity sealing of hole capsule after making grout cures.
Gas drainage drill hole plugging device provided by the invention and method implement slip casting shutoff after utilizing grouting pressure to be bulged by elasticity sealing of hole capsule again, by shutoff and slip casting function i ntegration on same device, simplify shutoff slip casting work, the elastic packing of elasticity shutoff capsule decreases gas leakage simultaneously, and plugging effect is better; Grouting port and grout outlet are all arranged on same one end of slip casting cavity, this set-up mode make plugging device for offer downwards drainage holes time, block section is formed in the drainage holes in aperture, slurries engage with elasticity sealing of hole capsule under gravity, thus making the combination of slurries and the elasticity sealing of hole capsule solidified more firm, shutoff is tighter.
Accompanying drawing explanation
The gas drainage drill hole plugging device structural representation that Fig. 1 provides for the embodiment of the present invention.
The extraction borehole method for blocking schematic flow sheet that Fig. 2 provides for the embodiment of the present invention.
Reference numeral:
1-drainage tube; 2-elasticity sealing of hole capsule; 3-grouting port;
4-grout outlet; 5-metal sleeve; 6-joint.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The gas drainage drill hole plugging device structural representation that Fig. 1 provides for the embodiment of the present invention, the invention provides a kind of gas drainage drill hole plugging device, and comprising drainage tube 1 and elasticity sealing of hole capsule 2, one end of drainage tube 1 is plugged in gas pumping hole; Elasticity sealing of hole capsule 2 fixed cover is located on the outer wall in the middle part of drainage tube 1, the two ends of elasticity sealing of hole capsule 2 and the outer wall of drainage tube 1 seal fixing, form cavity between middle part and the outside wall surface of drainage tube 1, cavity is respectively arranged with grouting port 3 and grout outlet 4 near the one end in drainage holes aperture.
Particularly, the sealing of elasticity sealing of hole capsule 2 two ends and drainage tube 1 outer wall can realize in the following manner: arrange metal sleeve 5 respectively at the two ends of elasticity sealing of hole capsule 2, the two ends sealing shroud of elasticity sealing of hole capsule 2 is connected on one end of metal sleeve 5, and the other end of metal sleeve 5 seals fixing respectively with the outer wall of drainage tube 1; Grouting port 3 and grout outlet 4 all can be arranged on cavity one end near drainage holes aperture, are namely opened in metal sleeve 5 one end near drainage holes aperture.
In actual applications, above-mentioned plugging device can be used for carrying out gas pumping to the drainage holes offered downwards, first that elasticity sealing of hole capsule 2 correspondence in plugging device is inner at the drainage holes away from drainage holes orifice position, then drainage tube 1 is inserted in drainage holes, start slip casting by grouting port 3.Along with the increase of grouting pressure, slurries are filled in the cavity between elasticity sealing of hole capsule 2 and drainage tube 1 gradually, thus it is tight to make elasticity sealing of hole capsule 2 be expanded to drainage holes port closing, continue grouting under pressure and make slurries flow out to drainage holes from grout outlet 4, namely grout cures realizes shutoff.
Preferably, grout outlet 4 is provided with diaphragm case, when initial slip casting, can stop that slurries flow out from grout outlet 4 under the grouting pressure of setting, when behind elasticity sealing of hole capsule 2 Expansion sealing aperture, continue grouting under pressure, slurries bursting diaphragm case after pressurization, thus slurries are injected in drainage holes.
Further, grouting port 3 is provided with joint 6, for connection Grouting Pipe.
The gas drainage drill hole plugging device that the embodiment of the present invention provides implements slip casting shutoff after utilizing grouting pressure to be bulged by elasticity sealing of hole capsule again, by shutoff and slip casting function i ntegration on same device, simplify shutoff slip casting work, the elastic packing of elasticity shutoff capsule decreases gas leakage simultaneously, and plugging effect is better; Grouting port and grout outlet are arranged on one end of drainage tube simultaneously, this set-up mode make plugging device for offer downwards drainage holes time, block section is formed in the drainage holes in aperture, and the combination of the slurries solidified and elasticity sealing of hole capsule is more firm, makes shutoff tighter.
The extraction borehole method for blocking schematic flow sheet that Fig. 2 provides for the embodiment of the present invention, the embodiment of the present invention additionally provides a kind of extraction borehole method for blocking, referring to Fig. 1, comprising:
Step 110, elasticity sealing of hole capsule 2 correspondence is inner at the drainage holes away from drainage holes orifice position, in drainage holes, insert drainage tube 1.
Step 120, in the cavity between elasticity sealing of hole capsule 2 and drainage tube 1, inject slurries by grouting port 3, when judging drainage holes described in the complete shutoff of elasticity sealing of hole capsule 2, grouting under pressure, fixes elasticity sealing of hole capsule 2 after making grout cures.
When carrying out shutoff to the drainage holes offered downwards, elasticity sealing of hole capsule 2 correspondence is inner at the drainage holes away from drainage holes orifice position, now grouting port 3 and grout outlet 4 are all arranged on outside hole, after elasticity sealing of hole capsule 2 bulges, continue slip casting, slurries flow out from grout outlet 4, flow to elasticity sealing of hole capsule 2 under gravity, elasticity sealing of hole capsule 2 and drainage holes are fixed after grout cures.
The extraction borehole method for blocking that the embodiment of the present invention provides is when carrying out slip casting shutoff to the drainage holes offered downwards, and plugging effect is good, and decrease gas leakage after shutoff completes, shutoff is tight.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (4)
1. a gas drainage drill hole plugging device, is characterized in that, comprising:
Drainage tube, one end is plugged in drainage holes;
Elasticity sealing of hole capsule, fixed cover is located on the outer wall in the middle part of described drainage tube, the described two ends of elasticity sealing of hole capsule and the outer wall of described drainage tube seal fixing, form cavity between the middle part of described elasticity sealing of hole capsule and the outside wall surface of described drainage tube, described cavity is respectively arranged with grouting port and grout outlet near the one end in described drainage holes aperture;
Described grout outlet is provided with the diaphragm case for stopping slurries under the grouting pressure of setting.
2. gas drainage drill hole plugging device according to claim 1, it is characterized in that, the two ends of described elasticity sealing of hole capsule arrange metal sleeve respectively, the two ends sealing shroud of described elasticity sealing of hole capsule is connected on described metal sleeve, and described metal sleeve seals fixing away from described one end of elasticity sealing of hole capsule and the outer wall of drainage tube; Described grouting port and grout outlet are all arranged on metal sleeve one end near described drainage holes aperture.
3. gas drainage drill hole plugging device according to claim 1 and 2, is characterized in that, described grouting port is provided with the joint for connecting Grouting Pipe.
4. an extraction borehole method for blocking, is characterized in that, adopts the arbitrary described gas drainage drill hole plugging device of claim 1-3 to carry out shutoff, comprising:
By corresponding for elasticity sealing of hole capsule inner at the drainage holes away from drainage holes orifice position, in drainage holes, insert drainage tube;
In the cavity between elasticity sealing of hole capsule and drainage tube, inject slurries by grouting port, when judging drainage holes described in the complete shutoff of elasticity sealing of hole capsule, grouting under pressure, fixes described elasticity sealing of hole capsule after making grout cures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110256628.4A CN102966371B (en) | 2011-09-01 | 2011-09-01 | Drainage borehole plugging device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110256628.4A CN102966371B (en) | 2011-09-01 | 2011-09-01 | Drainage borehole plugging device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102966371A CN102966371A (en) | 2013-03-13 |
| CN102966371B true CN102966371B (en) | 2015-05-20 |
Family
ID=47796773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110256628.4A Active CN102966371B (en) | 2011-09-01 | 2011-09-01 | Drainage borehole plugging device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102966371B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107942030A (en) * | 2017-12-18 | 2018-04-20 | 河南理工大学 | A kind of biaxial loadings gas pumping gas leakage analogue experiment installation and method |
| CN110984908B (en) * | 2019-12-26 | 2021-12-07 | 河南理工大学 | Hole sealing equipment for gas extraction |
| CN114607314B (en) * | 2022-03-30 | 2023-10-17 | 煤炭科学技术研究院有限公司 | Mechanical hole packer for gas extraction drilling and use method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4474409A (en) * | 1982-09-09 | 1984-10-02 | The United States Of America As Represented By The Secretary Of The Interior | Method of enhancing the removal of methane gas and associated fluids from mine boreholes |
| CN101050696B (en) * | 2007-05-10 | 2010-05-19 | 河南理工大学 | Bag type paste injection hole sealing device and its hole sealing method |
| CN101294500B (en) * | 2008-05-12 | 2010-09-08 | 淮南矿业(集团)有限责任公司 | Heavy pressure slip-casting hole-sealing method for large-diameter extraction borehole |
| CN101845944B (en) * | 2010-05-08 | 2013-06-05 | 中国矿业大学 | Method for sealing gas drainage boreholes at specified positions |
| CN201924876U (en) * | 2010-10-23 | 2011-08-10 | 李至芳 | Novel mine-used slurry injection hole sealing device |
-
2011
- 2011-09-01 CN CN201110256628.4A patent/CN102966371B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN102966371A (en) | 2013-03-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206513338U (en) | A kind of slip casting type hole packer of new blocked gas drainage hole | |
| CN107313799A (en) | A kind of sealing and leakage plugging device and method for gas pumping | |
| CN105696967A (en) | Mining hole packer and hole packing method | |
| CN105840134A (en) | Single-bag grouting hole sealing device for upward crossing boreholes and hole sealing method adopting single-bag grouting hole sealing device | |
| CN102966371B (en) | Drainage borehole plugging device and method | |
| CN105715230A (en) | Middle slurry-permeating type single-bag grouting hole sealing device and hole sealing method thereof | |
| CN106907155A (en) | The prominent water burst film bag slip casting fast plugging device of shield tail and it is provided with the shield machine of the device | |
| CN207583345U (en) | Mining drilling pump drainage fluid filling hole sealing device | |
| CN102966329B (en) | Drainage borehole plugging device and method | |
| CN104653220A (en) | Gas extraction sealing mechanism | |
| CN108457693B (en) | A kind of slot injection hole sealing fixed-point booster expands infiltration method and structure | |
| CN205330611U (en) | Mining hole packer | |
| CN202220617U (en) | Drilling extraction hole plugging device | |
| CN102767389B (en) | Hole packer for drawing out gas and injecting slurry | |
| CN202220581U (en) | Plugging device of extraction drill hole | |
| CN102966370B (en) | Drainage borehole plugging device and method | |
| CN105317397A (en) | Double cloth bags type grouting sealing set and method | |
| CN202220616U (en) | Drilling extraction hole plugging device | |
| CN110984908A (en) | Hole sealing equipment for gas extraction | |
| CN203130028U (en) | Double-plugging hole packer | |
| CN202866867U (en) | Hole packer for drawing out gas and grouting | |
| CN110761734B (en) | Sealing method of sealing device for drilling high-gas soft coal seam | |
| CN106677740B (en) | A kind of underground coal mine one-part form water sealing device and its encapsulating method | |
| CN205532465U (en) | Slip casting hole packer is pressed in split type bag area | |
| CN109184616A (en) | Double-hole tube grouting plugging device and its application method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |