CN103352716B - Gas pumping pipe - Google Patents
Gas pumping pipe Download PDFInfo
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- CN103352716B CN103352716B CN201310257873.6A CN201310257873A CN103352716B CN 103352716 B CN103352716 B CN 103352716B CN 201310257873 A CN201310257873 A CN 201310257873A CN 103352716 B CN103352716 B CN 103352716B
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- welded tube
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- pumping pipe
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Abstract
The invention provides a kind of gas pumping pipe, comprise at least one group of extraction pipeline, often organize extraction pipeline and comprise welded tube, joint, flexible pipe and butterfly valve; Described welded tube for be arranged on filling within the walls and end winding support at the formwork of described filling wall, described welded tube one end is concordant with the outside metope of the described formwork be positioned at outside gob side entry retaining, and the described welded tube other end is connected with described joint one end; The other end of described joint is connected with described butterfly valve one end; The other end of described butterfly valve is connected with the one end with spiral shell dish in described flexible pipe, and the other end of described flexible pipe is used for being responsible for extraction being communicated with.Gas pumping pipe provided by the invention, goes on the gob side entry retaining formwork that adopts in Y type draft type gob side entry retaining.
Description
Technical field
The present invention relates to coal mine gas drainage technology, especially relate to a kind of gas pumping pipe.
Background technology
Two to enter Y type draft type be applicable to prevention without coal pillar mining technical requirements and the most effective draft type of control face Gas Accumulation in Upper-Corner by Pulsed.In Y type draft type, adopt gob side entry retaining (Gob-side Entry Retaining) technology.
Adopt certain technological means the crossheading of a upper section again supporting to be left for next section in gob side entry retaining to use.Gob side entry retaining can Resource recovery to greatest extent, avoids coal body to lose.In edge air gallery technology, in order to the problem that alternative traditional-handwork filling filling wall efficiency comparison is slow, the general gob side entry retaining formwork that adopts carries out fast automatic filling.
Gas pumping pipe is generally embedded with, for the gas in extraction goaf in the filling wall of gob side entry retaining.But the gas pumping pipe that traditional-handwork filling filling wall uses at present cannot use on gob side entry retaining formwork, therefore, a kind of new gas pumping pipe being applicable to gob side entry retaining formwork of design is needed badly.
Summary of the invention
The invention provides a kind of gas pumping pipe, the technical problem that the gas pumping pipe for solving traditional-handwork filling filling wall use in prior art cannot use on gob side entry retaining formwork.
Gas pumping pipe provided by the invention, comprises at least one group of extraction pipeline, often organizes extraction pipeline and comprises welded tube, joint, flexible pipe and butterfly valve;
Described welded tube for be arranged on filling within the walls and end winding support at the formwork of described filling wall, described welded tube one end is concordant with the outside metope of the described formwork be positioned at outside gob side entry retaining, and the described welded tube other end is connected with described joint one end;
The other end of described joint is connected with described butterfly valve one end;
The other end of described butterfly valve is connected with the one end with spiral shell dish in described flexible pipe, and the other end of described flexible pipe is used for being responsible for extraction being communicated with.
Gas pumping pipe as above, preferably, described welded tube is perpendicular to described formwork metope, and described welded tube length is less than described formwork metope thickness, and it is inner that described joint one end is arranged at described formwork, and the other end stretches out in described formwork.
Gas pumping pipe as above, preferably, described joint offers gas density and measures mouth, and described gas density measures the metope outside, inner side that mouth is positioned at the described formwork inside described gob side entry retaining.
Gas pumping pipe as above, preferably, the described welded tube other end is fixedly connected with spiral shell dish, is installed with nut in described spiral shell dish, and described nut is connected with described joint one end.
Gas pumping pipe as above, preferably, the quantity of described extraction pipeline is two or more sets and is intervally installed.
Gas pumping pipe provided by the invention, the problem that the gas pumping pipe used to solve current traditional-handwork filling filling wall cannot use on gob side entry retaining formwork, the gob side entry retaining formwork that realization adopts in Y type draft type edge air gallery technology carries out pipe laying to gas pumping pipe, to make to carry out extraction to the gas in goaf.
Accompanying drawing explanation
Fig. 1 is the structural representation of gas pumping pipe embodiment one of the present invention;
Fig. 2 is the structural representation of gas pumping pipe embodiment two of the present invention;
Fig. 3 is the structural representation of gas pumping pipe embodiment three of the present invention.
Description of reference numerals:
1: extraction pipeline; 2: welded tube; 3: joint;
4: butterfly valve; 5: flexible pipe; 6: extraction is responsible for;
7: formwork; 8: gas density measures mouth.
Detailed description of the invention
Fig. 1 is the structural representation of gas pumping pipe embodiment one of the present invention, and as shown in Figure 1, this gas pumping pipe comprises:
At least one group of extraction pipeline 1, often organizes extraction pipeline 1 and comprises welded tube 2, joint 3, flexible pipe 5 and butterfly valve 4.
Described welded tube 2 for be arranged on filling within the walls and end winding support at the formwork 7 of described filling wall, described welded tube 2 one end is concordant with the outside metope of the described formwork 7 be positioned at outside gob side entry retaining, and described welded tube 2 other end is connected with described joint 3 one end.
The other end of described joint 3 is connected with described butterfly valve 4 one end.
The other end of described butterfly valve 4 is connected with described flexible pipe 5 one end, and the other end of described flexible pipe 5 is used for being responsible for 6 with extraction and is communicated with.
During concrete use the present embodiment gas pumping pipe, before using formwork 7 filling filling wall, first welded tube 2, be fixed in the formwork 7 of filling wall firmly, to ensure when filling, the body of welded tube 2 can not move or drop; The two ends of welded tube 2, respectively with flexible material sealing, are such as tied up tight with waste and old air duct fabric, inner to ensure that casting resin can not penetrate into welded tube 2; To be filled complete after, take formwork 7 away, with special blade, the flexible material in welded tube 2 two ends sliced off, such as slices off the air duct fabric being banded in port; The welded tube 2 that formwork 7 is positioned at inside gob side entry retaining connects a joint 3, and the other end being tightened in joint 3 with screw rod loads onto butterfly valve 4, then is connected with the one end with spiral shell dish in flexible pipe 5; The other end of flexible pipe 5 is connected on extraction supervisor 6, by butterfly valve 4, controls the effect of extraction.
The gas pumping pipe of the present embodiment is applicable on the formwork that adopts in Y type draft type gob side entry retaining.
Preferably, on the basis of above-described embodiment, welded tube 2 is perpendicular to described formwork 7 metope, and welded tube 2 length is less than described formwork 7 metope thickness, and it is inner that joint 3 one end is arranged at described formwork 7, and the other end stretches out in described formwork 7.Like this, make the length of welded tube 2 minimum, save cost, simultaneously because welded tube 2 length is less than described formwork 7 metope thickness, make joint 3 one end be arranged at formwork 7 inner, the position being conducive to butt joint 3 is fixed.
Fig. 2 is the structural representation of gas pumping pipe embodiment two of the present invention, and the present embodiment, on the basis of a upper embodiment, increases gas density and measures mouth structure.As shown in Figure 2, joint 3 offers gas density and measure mouth 8, and gas density measures the metope outside, inner side that mouth 8 is positioned at the formwork 7 inside gob side entry retaining.
The annexation of other structures of the present embodiment and effect identical with a upper embodiment, do not repeat them here.
The present embodiment measures mouth 8 by offering gas density on described joint 3, measures gas density to make technician by professional tool.
Further, on the basis of the present embodiment, welded tube 2 other end can be fixedly connected with spiral shell dish, is installed with nut in described spiral shell dish, and described nut is connected with described joint 3 one end.By increasing spiral shell dish and nut, to improve the tightness between gas pumping pipe welded tube 2 and joint 3.
Preferably, on the basis of the present embodiment, the quantity of described extraction pipeline 1 is two or more sets and is intervally installed, and many group drainage tubes 1 make the efficiency of mash gas extraction more efficient.
Fig. 3 is the structural representation of gas pumping pipe embodiment three of the present invention, implements the specific embodiment that three are above-mentioned any embodiment, is applied on ZZTM3*11300/19/35H type formwork 7.
Wherein, the specification of ZZTM3*11300/19/35H type gob side entry retaining formwork 7 is 3m*3m*3m; Be pressed on formwork 7 and have two groups of gas pumping pipes 1, the specification of the welded tube 2 of any one group of gas pumping pipe 1 is DN250mm spiral welded pipe, and welded tube 2 is 0.5m apart from the distance of formwork 7 upper surface, and welded tube 2 length is 2.95m, one end is welded with spiral shell dish, and in spiral shell dish, mouth is welded with nut; Nut connects a joint 3, and joint 3 length is greater than 0.05m, joint offers gas density and measures mouth 8, and gas density measures the metope outside, inner side that mouth 8 is positioned at the formwork 7 inside gob side entry retaining; Joint 3 other end connects butterfly valve 4, and the specification of butterfly valve 4 is the butterfly valve of DN250mm; The other end of butterfly valve 4 connects extraction flexible pipe 5, and the specification of extraction flexible pipe 5 is the flexible pipe of DN250mm, and one end, with spiral shell dish, is connected with butterfly valve 4, and the other end is connected on reserved DN400mm extraction supervisor 6.
The gas pumping pipe of the present embodiment is applicable on ZZTM3*11300/19/35H type gob side entry retaining formwork.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments 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 some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (4)
1. a gas pumping pipe, is characterized in that: comprise at least one group of extraction pipeline, often organizes extraction pipeline and comprises welded tube, joint, flexible pipe and butterfly valve;
Described welded tube for be arranged on filling within the walls and end winding support at the formwork of described filling wall, described welded tube one end is concordant with the outside metope of the described formwork be positioned at outside gob side entry retaining, and the described welded tube other end is connected with described joint one end;
The other end of described joint is connected with described butterfly valve one end;
The other end of described butterfly valve is connected with the one end with spiral shell dish in described flexible pipe, and the other end of described flexible pipe is used for being responsible for extraction being communicated with;
Described welded tube is perpendicular to described formwork metope, and described welded tube length is less than described formwork metope thickness, and it is inner that described joint one end is arranged at described formwork, and the other end stretches out in described formwork.
2. gas pumping pipe according to claim 1, is characterized in that, described joint offers gas density and measures mouth, and described gas density measures the metope outside, inner side that mouth is positioned at the described formwork inside described gob side entry retaining.
3. gas pumping pipe according to claim 1, is characterized in that, the described welded tube other end is fixedly connected with spiral shell dish, is installed with nut in described spiral shell dish, and described nut is connected with described joint one end.
4. according to the arbitrary described gas pumping pipe of claim 1-3, it is characterized in that, the quantity of described extraction pipeline is two or more sets and is intervally installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310257873.6A CN103352716B (en) | 2013-06-25 | 2013-06-25 | Gas pumping pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310257873.6A CN103352716B (en) | 2013-06-25 | 2013-06-25 | Gas pumping pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103352716A CN103352716A (en) | 2013-10-16 |
| CN103352716B true CN103352716B (en) | 2015-10-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310257873.6A Active CN103352716B (en) | 2013-06-25 | 2013-06-25 | Gas pumping pipe |
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| Country | Link |
|---|---|
| CN (1) | CN103352716B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101082283A (en) * | 2007-06-29 | 2007-12-05 | 淮南矿业(集团)有限责任公司 | Gob-side entry retaining Y-shaped ventilation goaf roof pressure relief gas extraction method |
| CN201381874Y (en) * | 2009-04-07 | 2010-01-13 | 淮南矿业(集团)有限责任公司 | Coal bed pressure measurement gas water separation device |
| CN101699033A (en) * | 2009-10-27 | 2010-04-28 | 山西焦煤集团有限责任公司 | Device for pumping and draining water from downward hole of coal bed |
| CN102635392A (en) * | 2012-05-04 | 2012-08-15 | 中国矿业大学 | Co-extraction method for pillar-less coal and gas of advanced entry-retaining construction extraction engineering |
| CN102913272A (en) * | 2011-08-05 | 2013-02-06 | 淮南矿业(集团)有限责任公司 | Device and method for displacing methane gas with positive pressure air |
| CN102926795A (en) * | 2011-08-10 | 2013-02-13 | 淮南矿业(集团)有限责任公司 | Gas extraction method and gas extraction system |
| CN203321571U (en) * | 2013-06-25 | 2013-12-04 | 淮南矿业(集团)有限责任公司 | Gas extraction tube |
-
2013
- 2013-06-25 CN CN201310257873.6A patent/CN103352716B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101082283A (en) * | 2007-06-29 | 2007-12-05 | 淮南矿业(集团)有限责任公司 | Gob-side entry retaining Y-shaped ventilation goaf roof pressure relief gas extraction method |
| CN201381874Y (en) * | 2009-04-07 | 2010-01-13 | 淮南矿业(集团)有限责任公司 | Coal bed pressure measurement gas water separation device |
| CN101699033A (en) * | 2009-10-27 | 2010-04-28 | 山西焦煤集团有限责任公司 | Device for pumping and draining water from downward hole of coal bed |
| CN102913272A (en) * | 2011-08-05 | 2013-02-06 | 淮南矿业(集团)有限责任公司 | Device and method for displacing methane gas with positive pressure air |
| CN102926795A (en) * | 2011-08-10 | 2013-02-13 | 淮南矿业(集团)有限责任公司 | Gas extraction method and gas extraction system |
| CN102635392A (en) * | 2012-05-04 | 2012-08-15 | 中国矿业大学 | Co-extraction method for pillar-less coal and gas of advanced entry-retaining construction extraction engineering |
| CN203321571U (en) * | 2013-06-25 | 2013-12-04 | 淮南矿业(集团)有限责任公司 | Gas extraction tube |
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| Publication number | Publication date |
|---|---|
| CN103352716A (en) | 2013-10-16 |
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