CN102966370A - Drainage borehole plugging device and method - Google Patents
Drainage borehole plugging device and method Download PDFInfo
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- CN102966370A CN102966370A CN2011102564077A CN201110256407A CN102966370A CN 102966370 A CN102966370 A CN 102966370A CN 2011102564077 A CN2011102564077 A CN 2011102564077A CN 201110256407 A CN201110256407 A CN 201110256407A CN 102966370 A CN102966370 A CN 102966370A
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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 two ends of the chamber body, wherein the grout injection port is arranged at one end adjacent to the mouth of the drainage borehole and the grout outlet is arranged at one end far away from 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, relate in particular to a kind of gas drainage drill hole plugging device and method.
Background technology
Mine Gas is one of known mine disaster, and the safety hazard of mine being produced in order to reduce or eliminate gas can solve by the gas that shifts to an earlier date the extraction coal seam gas emission in coal mining and the tunneling process.Existing gas pumping technology generally is with polyurethane drainage tube to be carried out fixedly grouting behind shaft or drift lining of shutoff at the outer end of drainage holes, and the polyurethane shutoff is fixing not tight, and easily from the aperture running pulp, the sealing of hole weak effect leaks gas seriously during slip casting.
Summary of the invention
The invention provides a kind of gas drainage drill hole plugging device and method, be used for the drainage holes of upwards offering is carried out shutoff, reduce gas leakage, improve plugging effect.
The invention provides a kind of gas drainage drill hole plugging device, wherein, comprising:
Drainage tube, an end is plugged in the drainage holes;
Elasticity sealing of hole capsule, fixed cover is located on the outer wall at described drainage tube middle part, the two ends of described elasticity sealing of hole capsule and the sealing of the outer wall of described drainage tube are 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, described grouting port is arranged on the end near described drainage holes aperture, and described grout outlet is arranged on the end away from described drainage holes aperture.
The present invention also provides a kind of extraction borehole method for blocking, wherein, adopts gas drainage drill hole plugging device provided by the invention to carry out shutoff, comprising:
With position, the corresponding drainage holes aperture of elasticity sealing of hole capsule, in drainage holes, insert drainage tube;
Inject slurries by grouting port in the cavity between elasticity sealing of hole capsule and drainage tube, when judging the described drainage holes of the complete distending shutoff of elasticity sealing of hole capsule, grouting under pressure is so that slurries solidify rear fixing described elasticity sealing of hole capsule.
Gas drainage drill hole plugging device provided by the invention and method are implemented the slip casting shutoff after utilizing grouting pressure that elasticity sealing of hole capsule is bulged again, shutoff and slip casting function are integrated on the same device, simplified shutoff slip casting work, the elastic packing of elasticity shutoff capsule has reduced gas leakage simultaneously, and plugging effect is better; Grouting port and grout outlet are separately positioned on the two ends of slip casting cavity, when this set-up mode makes the drainage holes that plugging device is used for upwards offering, the block section is formed on away from the drainage holes in aperture inner, slurries engage with elasticity sealing of hole capsule under Action of Gravity Field, thereby make the combination of the slurries that solidify and elasticity sealing of hole capsule more firm, shutoff is tighter.
Description of drawings
The gas drainage drill hole plugging device structural representation that Fig. 1 provides for the embodiment of the invention.
The extraction borehole method for blocking schematic flow sheet that Fig. 2 provides for the embodiment of the invention.
Reference numeral:
The 1-drainage tube; 2-elasticity sealing of hole capsule; The 3-grouting port;
The 4-grout outlet; The 5-metal sleeve; The 6-joint.
The specific embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Fig. 1 the invention provides a kind of gas drainage drill hole plugging device for the gas drainage drill hole plugging device structural representation that the embodiment of the invention provides, and comprising drainage tube 1 and elasticity sealing of hole capsule 2, an end of drainage tube 1 is plugged in the gas pumping hole; Elasticity sealing of hole capsule 2 fixed covers are located on the outer wall at drainage tube 1 middle part, and the two ends of elasticity sealing of hole capsule 2 and the sealing of the outer wall of drainage tube 1 are fixing, form cavity between the outside wall surface of middle part and drainage tube 1, and the two ends of cavity are respectively arranged with grouting port 3 and grout outlet 4.
Particularly, the sealing of elasticity sealing of hole capsule 2 two ends and drainage tube 1 outer wall can realize in the following manner: the two ends at elasticity sealing of hole capsule 2 arrange respectively metal sleeve 5, a sealed at both ends end that is socketed in metal sleeve 5 of elasticity sealing of hole capsule 2, the other end of metal sleeve 5 are fixing with the outer wall sealing of drainage tube 1 respectively; Grouting port 3 and grout outlet 4 can be separately positioned on the two ends of cavity, namely are opened in the two ends of metal sleeve 5.
In actual applications, above-mentioned plugging device can be used for the drainage holes of upwards offering is carried out gas pumping, first with the position, elasticity sealing of hole capsule 2 corresponding drainage holes aperture in the plugging device, drainage tube 1 is inserted in the drainage holes, by grouting port 3 beginning slip castings again.Increase along with grouting pressure, slurries are filled in the cavity between elasticity sealing of hole capsule 2 and the drainage tube 1 gradually, thereby it is tight that elasticity sealing of hole capsule 2 is expanded to the drainage holes port closing, continues grouting under pressure slurries are flowed out to the drainage holes from grout outlet 4, and slurries solidify namely realizes shutoff.
Preferably, be provided with diaphragm case at grout outlet 4, when initial slip casting, can stop under the grouting pressure of setting that slurries flow out from grout outlet 4, behind elasticity sealing of hole capsule 2 Expansion sealing apertures, continue grouting under pressure, slurries bursting diaphragm case after the pressurization, thus slurries are injected in the drainage holes.
Further, grouting port 3 is provided with joint 6, to be used for connecting Grouting Pipe.
The gas drainage drill hole plugging device that the embodiment of the invention provides is implemented the slip casting shutoff after utilizing grouting pressure that elasticity sealing of hole capsule is bulged again, shutoff and slip casting function are integrated on the same device, simplified shutoff slip casting work, the elastic packing of elasticity shutoff capsule has reduced gas leakage simultaneously, and plugging effect is better; Grouting port and grout outlet are separately positioned on the two ends of drainage tube, when this set-up mode makes the drainage holes that plugging device is used for upwards offering, the block section is formed on away from the drainage holes in aperture inner, and the combination of the slurries that solidify 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 invention, the embodiment of the invention also provides a kind of extraction borehole method for blocking, asks the while with reference to Fig. 1, comprising:
When the drainage holes of upwards offering is carried out shutoff, with elasticity sealing of hole capsule 2 correspondences in position, drainage holes aperture, this moment, grouting port 3 was arranged on outside the hole, grout outlet 4 is arranged on the depths away from the aperture, after elasticity sealing of hole capsule 2 bulges, continue slip casting, slurries flow out from grout outlet 4, under Action of Gravity Field, flow to elasticity sealing of hole capsule 2, after slurries solidify elasticity sealing of hole capsule 2 and drainage holes are fixed.
The extraction borehole method for blocking that the embodiment of the invention provides is when carrying out the slip casting shutoff to the drainage holes of upwards offering, and plugging effect is good, has reduced gas leakage after shutoff is finished, and shutoff is tight.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (5)
1. a gas drainage drill hole plugging device is characterized in that, comprising:
Drainage tube, an end is plugged in the drainage holes;
Elasticity sealing of hole capsule, fixed cover is located on the outer wall at described drainage tube middle part, the two ends of described elasticity sealing of hole capsule and the sealing of the outer wall of described drainage tube are 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, described grouting port is arranged on the end near described drainage holes aperture, and described grout outlet is arranged on the end away from described drainage holes aperture.
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 respectively metal sleeve, the sealed at both ends of described elasticity sealing of hole capsule is socketed on the described metal sleeve, and described metal sleeve is fixed away from an end of described elasticity sealing of hole capsule and the outer wall sealing of drainage tube; Described grouting port and grout outlet are arranged on the two ends of described metal sleeve.
3. gas drainage drill hole plugging device according to claim 1 and 2 is characterized in that, described grout outlet is provided with for the diaphragm case that stops slurries under the grouting pressure of setting.
4. gas drainage drill hole plugging device according to claim 1 and 2 is characterized in that, described grouting port is provided with for the joint that connects Grouting Pipe.
5. an extraction borehole method for blocking is characterized in that, adopts the arbitrary described gas drainage drill hole plugging device of claim 1-4 to carry out shutoff, comprising:
With position, the corresponding drainage holes aperture of elasticity sealing of hole capsule, in drainage holes, insert drainage tube;
Inject slurries by grouting port in the cavity between elasticity sealing of hole capsule and drainage tube, when judging the described drainage holes of the complete distending shutoff of elasticity sealing of hole capsule, grouting under pressure is so that slurries solidify rear fixing described elasticity sealing of hole capsule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110256407.7A CN102966370B (en) | 2011-09-01 | 2011-09-01 | Drainage borehole plugging device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110256407.7A CN102966370B (en) | 2011-09-01 | 2011-09-01 | Drainage borehole plugging device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102966370A true CN102966370A (en) | 2013-03-13 |
| CN102966370B CN102966370B (en) | 2015-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110256407.7A Active CN102966370B (en) | 2011-09-01 | 2011-09-01 | Drainage borehole plugging device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107780873A (en) * | 2017-10-23 | 2018-03-09 | 山西潞安矿业(集团)有限责任公司 | The three-stage capsule sealing device and its encapsulating method of a kind of mash gas pumping drilling |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3493045A (en) * | 1968-02-29 | 1970-02-03 | Peppino Bassani | Fluid pressurized shothole plug and water control device |
| 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 |
| CN101050696A (en) * | 2007-05-10 | 2007-10-10 | 河南理工大学 | Bag type paste injection hole sealing device and its hole sealing method |
| CN101482026A (en) * | 2009-02-10 | 2009-07-15 | 河南理工大学 | Gas extraction secondary high-pressure slip-casting hole-sealing apparatus and its hole-sealing method |
| CN101845944A (en) * | 2010-05-08 | 2010-09-29 | 中国矿业大学 | Method for sealing gas drainage boreholes at specified positions |
| CN202220616U (en) * | 2011-09-01 | 2012-05-16 | 淮南矿业(集团)有限责任公司 | Drilling extraction hole plugging device |
-
2011
- 2011-09-01 CN CN201110256407.7A patent/CN102966370B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3493045A (en) * | 1968-02-29 | 1970-02-03 | Peppino Bassani | Fluid pressurized shothole plug and water control device |
| 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 |
| CN101050696A (en) * | 2007-05-10 | 2007-10-10 | 河南理工大学 | Bag type paste injection hole sealing device and its hole sealing method |
| CN101482026A (en) * | 2009-02-10 | 2009-07-15 | 河南理工大学 | Gas extraction secondary high-pressure slip-casting hole-sealing apparatus and its hole-sealing method |
| CN101845944A (en) * | 2010-05-08 | 2010-09-29 | 中国矿业大学 | Method for sealing gas drainage boreholes at specified positions |
| CN202220616U (en) * | 2011-09-01 | 2012-05-16 | 淮南矿业(集团)有限责任公司 | Drilling extraction hole plugging device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107780873A (en) * | 2017-10-23 | 2018-03-09 | 山西潞安矿业(集团)有限责任公司 | The three-stage capsule sealing device and its encapsulating method of a kind of mash gas pumping drilling |
| CN107780873B (en) * | 2017-10-23 | 2023-11-28 | 山西潞安矿业(集团)有限责任公司 | Three-section type capsule sealing device for gas extraction drilling and sealing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102966370B (en) | 2015-04-29 |
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