CN201723246U - Ventilating structure for pumping and exhausting gas at coal face - Google Patents
Ventilating structure for pumping and exhausting gas at coal face Download PDFInfo
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- CN201723246U CN201723246U CN 201020277675 CN201020277675U CN201723246U CN 201723246 U CN201723246 U CN 201723246U CN 201020277675 CN201020277675 CN 201020277675 CN 201020277675 U CN201020277675 U CN 201020277675U CN 201723246 U CN201723246 U CN 201723246U
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- pumping
- under suction
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Abstract
The utility model relates to the field of coal mine gas treatment, in particular to a ventilating structure for pumping and exhausting gas at a coal face. The ventilating structure solves the problems that an uncontrolled gas space exists by adopting the existing U plus L type ventilation mode, the gas in the profile is accumulated for a long time and can not be monitored after the profile is temporarily closed, the hidden safety hazards are excessive and the gas is easy to leak owning to crazing, and the like. The ventilating structure comprises a track tunnel intake airway, an adhesive-tape tunnel return airway and a special gas pumping and exhausting roadway arranged in parallel with the adhesive-tape tunnel return airway; a coal pillar is reserved between the special gas pumping and exhausting roadway and the adhesive-tape tunnel return airway; gas pumping and exhausting through holes are isolated on the coal pillar; and the special gas pumping and exhausting roadway is internally paved with a gas pumping and exhausting pipe which is communicated with the gas pumping and exhausting through hole. The ventilating structure has the advantages that the construction cost is reduced, the construction period is shortened, the gas drainage quantity can be improved, the utilization ratio of the gas is increased, the phenomena that the area with high gas concentration exists and the gas concentration is uncontrollable in the ventilation system are eliminated simultaneously, the management difficulty of the mine ventilation system is reduced, and the safety and high-efficiency production of the working face is ensured.
Description
Technical field
The utility model relates to the control of coalmine gas field, is specially a kind of coal-face gas pumping discharging ventilating structure.
Background technology
Mine ventilation is the basis of Safety of Coal Mine Production, it not only has, and each carries fresh distinguished and admirable with the wind place to the down-hole, ensure the critical function that underground operators is breathed, simultaneously, also bearing dilution, getting rid of the important tasks such as cooling between mine gas and dust and operation area.
At present, in the inflammable thick coal-layer mining of high gas, the ventilating structure of work plane has a variety of, " two advance one time " i.e. " U+L " type ventilation system for example, be the auxiliary air intake of track crossheading master air intake, belt crossheading, tail lane return air and the gas-removing between auxiliary air intake lane and return airway traverse with return air and traverse; Install booster at the belt crossheading air feed is just before carried out in the tail lane, dilution tail lane (return air traverses with the lining) gas density is to safe range, in addition, in order to reduce the return air upper corner to the gas-removing section of traversing gas, oxygen concentration, return air upper corner to the gas-removing of one side gob side entry retaining traverses mouth and sets up divider wall in the goaf.There is the uncontrollable space of gas in this draft type, is great potential safety hazard; At the long work plane of trend, it is many to traverse construction quantity, the setting of divider wall cause traverse interim airtight many, ventilation system is unreliable, and traversing interim gas in traversing after airtight gathers for a long time unavoidably, can't monitor, traverse behind working face extraction that permanent airtight construction quantity is many, engineering quantity is big, the permanent airtight haul difficulty of construction in return airway, high gas zone construction operation potential safety hazard is many, cracking leakage gas behind the long-term pressurized after permanent airtight construction finishes, the final-period management difficulty is big, for the mine ventilation system management poses a big pressure.
Summary of the invention
There is the uncontrollable space of gas in the utility model existing in order to solve " U+L " type draft type, traverse interim traverse after airtight in gas gather for a long time and can't monitor, potential safety hazard is many, and problem such as leakage gas easy to crack, a kind of coal-face gas pumping discharging ventilating structure is provided.
The utility model is to adopt following technical scheme to realize: coal-face gas pumping discharging ventilating structure, comprise the track crossheading intake and the adhesive tape crossheading return aircourse that take the shape of the letter U and arrange along the excavation coal seam, innovative point of the present utility model is also to comprise the special-purpose tunnel of gas drainage under suction that be arranged in parallel with adhesive tape crossheading return aircourse and be equipped with ventilation fan, be reserved with coal column between special-purpose tunnel of gas drainage under suction and the adhesive tape crossheading return aircourse, the interval has the gas drainage under suction through hole perpendicular to the special-purpose tunnel of gas drainage under suction on the coal column, is equipped with the gas drainage under suction through hole in the special-purpose tunnel of gas drainage under suction to be communicated with, and be respectively applied for the contiguous floor height of extraction, the gas drainage under suction pipe of low concentration and goaf gas.
Adopt structure design of the present utility model, the gas drainage system in gas drainage under suction pipe and whole excavation coal seam is coupled together, exploitation along with coal seam and coal column, all the time guarantee that the gas drainage under suction through hole that is positioned at return air upper corner place is communicated with the gas drainage under suction pipe, this moment, the gas drainage under suction through hole on the coal column between special-purpose tunnel of gas drainage under suction and the adhesive tape crossheading return aircourse was airtight with valve, while is according to the gas permeability in gas source and coal seam, this coal seam of reasonable Arrangement, the boring in adjacent layer and goaf, the gas that to gush out by the special-purpose tunnel of gas drainage under suction carries out extraction and concentrates processing, effectively reduces stoping period gas emission and upper corner gas density.
The utility model belongs to " U+I " type draft type, be applicable to mine extraction system and by gas drainage under suction after gas outburst amount less than 20m
3The coal-face of/min, at first reduce construction cost, the reduction of erection time, can not cause to be connected nervous, secondly by adopting gas drainage under suction, can improve the gas pumping amount, increase the gas utilization rate, eliminate zone existence of high gas and the uncontrollable phenomenon generation of gas density in the ventilation system simultaneously, reduce the mine ventilation system management difficulty, guaranteed the safe and efficient production of work plane, for mine safety provides safeguard
Compared with prior art, have the following advantages:
1, during each crossheading of construction working face, the reduction of erection time can be traversed without the construction working face; It is interim airtight and forever airtight to construct simultaneously, and interim airtight interior and permanent airtight preceding methane accumulation is traversed in elimination, is convenient to the ventilation system management;
2, avoided upper corner to the uncontrollable phenomenon of the gas-removing section of traversing gas density to occur, reduced the goaf gas accident and take place;
3, eliminate the return airway gas-removing and traverse to return air and traverse high gas section, reduce the generation probability of eliminating gas accident in the tunnel;
4, improve the goaf gas utilization rate, improve the effective air quantity utilization, reduce the ventilation system management difficulty.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Among the figure: 1-excavates the coal seam; 2-track crossheading intake; 3-adhesive tape crossheading return aircourse; The special-purpose tunnel of 4-gas drainage under suction; The 5-coal column; 6-gas drainage under suction through hole; 7-gas drainage under suction pipe; The 8-goaf.
The specific embodiment
Coal-face gas pumping discharging ventilating structure, as shown in Figure 1, comprise the track crossheading intake 2 and the adhesive tape crossheading return aircourse 3 that take the shape of the letter U and arrange along excavation coal seam 1, also comprise the special-purpose tunnel 4 of gas drainage under suction that be arranged in parallel with adhesive tape crossheading return aircourse 3 and be equipped with ventilation fan, be reserved with coal column 5 between special-purpose tunnel 4 of gas drainage under suction and the adhesive tape crossheading return aircourse 3, have gas drainage under suction through hole 6 on the coal column 5 at interval perpendicular to the special-purpose tunnel 4 of gas drainage under suction, pitch of holes is 1m, the aperture is 113mm, be equipped with gas drainage under suction through hole 6 in the special-purpose tunnel 4 of gas drainage under suction and be communicated with, and be respectively applied for the contiguous floor height of extraction, the gas drainage under suction pipe 7 of low concentration and goaf 8 gas, can adopt DN300mm polyethylene pipeline three times, also can arrange simultaneously and be used for this coal bed drilling of extraction by a DN200mm polyethylene pipeline in adhesive tape crossheading return aircourse.
Claims (1)
1. a coal-face gas pumping discharges ventilating structure, comprise the track crossheading intake (2) and the adhesive tape crossheading return aircourse (3) that take the shape of the letter U and arrange along excavation coal seam (1), it is characterized in that also comprising the special-purpose tunnel (4) of gas drainage under suction that be arranged in parallel with adhesive tape crossheading return aircourse (3) and be equipped with ventilation fan, be reserved with coal column (5) between special-purpose tunnel (4) of gas drainage under suction and the adhesive tape crossheading return aircourse (3), coal column (5) is gone up the gas drainage under suction through hole (6) that has at interval perpendicular to the special-purpose tunnel of gas drainage under suction (4), is equipped with gas drainage under suction through hole (6) in the special-purpose tunnel of gas drainage under suction (4) to be communicated with, and be respectively applied for the contiguous floor height of extraction, the gas drainage under suction pipe (7) of low concentration and goaf gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020277675 CN201723246U (en) | 2010-07-27 | 2010-07-27 | Ventilating structure for pumping and exhausting gas at coal face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020277675 CN201723246U (en) | 2010-07-27 | 2010-07-27 | Ventilating structure for pumping and exhausting gas at coal face |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201723246U true CN201723246U (en) | 2011-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020277675 Expired - Lifetime CN201723246U (en) | 2010-07-27 | 2010-07-27 | Ventilating structure for pumping and exhausting gas at coal face |
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| CN (1) | CN201723246U (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182460A (en) * | 2011-04-14 | 2011-09-14 | 山西晋城无烟煤矿业集团有限责任公司 | High-gas multi-roadway no-coal-pillar mining method |
| CN102392679A (en) * | 2011-11-21 | 2012-03-28 | 大同煤矿集团有限责任公司 | Comprehensive and integrative gas drainage method |
| CN102748064A (en) * | 2012-07-19 | 2012-10-24 | 大同煤矿集团有限责任公司 | Large-mining-height fully-mechanized caving face gas control method |
| CN103046947A (en) * | 2011-10-14 | 2013-04-17 | 中国矿业大学(北京) | Gas extraction method by using major diameter pipeline and sealing transverses between mine goaf and tail roadway |
| CN103541755A (en) * | 2012-07-12 | 2014-01-29 | 山西寿阳段王煤业集团有限公司 | W-shaped ventilation method for fully-mechanized top coal caving working face |
| CN103939125A (en) * | 2014-04-29 | 2014-07-23 | 中国矿业大学(北京) | Gob hot air treatment method |
| CN104088642A (en) * | 2014-06-30 | 2014-10-08 | 山东科技大学 | Super-short-wall coal mining method |
| CN104763434A (en) * | 2015-01-31 | 2015-07-08 | 太原理工大学 | Non-coal-pillar double tunneling method |
| CN105322494A (en) * | 2014-07-21 | 2016-02-10 | 张健平 | Cable trench with excellent heat radiation channels |
| CN106337695A (en) * | 2016-09-23 | 2017-01-18 | 河南理工大学 | Comprehensive treatment method for spontaneous combustion of residual coal in goaf and transfinite gas at upper corner |
| CN106979030A (en) * | 2017-04-07 | 2017-07-25 | 煤科集团沈阳研究院有限公司 | A kind of variable load extraction pipeline and pumping method based on catalyzing denaturing principle |
| CN109519212A (en) * | 2019-01-21 | 2019-03-26 | 中煤科工集团重庆研究院有限公司 | The device and method of major diameter horizontal drilling bridge joint goaf mash gas extraction |
| CN111911226A (en) * | 2020-09-14 | 2020-11-10 | 中煤科工集团重庆研究院有限公司 | System and method for alternately extracting gas from return air corner of stope face |
| CN116971817A (en) * | 2023-09-25 | 2023-10-31 | 太原理工大学 | High-gas working face ventilation method for alternately entering and returning air in gallery |
-
2010
- 2010-07-27 CN CN 201020277675 patent/CN201723246U/en not_active Expired - Lifetime
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182460A (en) * | 2011-04-14 | 2011-09-14 | 山西晋城无烟煤矿业集团有限责任公司 | High-gas multi-roadway no-coal-pillar mining method |
| CN103046947A (en) * | 2011-10-14 | 2013-04-17 | 中国矿业大学(北京) | Gas extraction method by using major diameter pipeline and sealing transverses between mine goaf and tail roadway |
| CN103046947B (en) * | 2011-10-14 | 2014-11-19 | 中国矿业大学(北京) | Gas extraction method by using major diameter pipeline and sealing transverses between mine goaf and tail roadway |
| CN102392679A (en) * | 2011-11-21 | 2012-03-28 | 大同煤矿集团有限责任公司 | Comprehensive and integrative gas drainage method |
| CN103541755A (en) * | 2012-07-12 | 2014-01-29 | 山西寿阳段王煤业集团有限公司 | W-shaped ventilation method for fully-mechanized top coal caving working face |
| CN102748064A (en) * | 2012-07-19 | 2012-10-24 | 大同煤矿集团有限责任公司 | Large-mining-height fully-mechanized caving face gas control method |
| CN103939125A (en) * | 2014-04-29 | 2014-07-23 | 中国矿业大学(北京) | Gob hot air treatment method |
| CN104088642B (en) * | 2014-06-30 | 2016-06-08 | 山东科技大学 | A kind of super Shortwall mining method |
| CN104088642A (en) * | 2014-06-30 | 2014-10-08 | 山东科技大学 | Super-short-wall coal mining method |
| CN105322494A (en) * | 2014-07-21 | 2016-02-10 | 张健平 | Cable trench with excellent heat radiation channels |
| CN104763434A (en) * | 2015-01-31 | 2015-07-08 | 太原理工大学 | Non-coal-pillar double tunneling method |
| CN104763434B (en) * | 2015-01-31 | 2016-09-28 | 太原理工大学 | A kind of without coal column double lanes driving method |
| CN106337695A (en) * | 2016-09-23 | 2017-01-18 | 河南理工大学 | Comprehensive treatment method for spontaneous combustion of residual coal in goaf and transfinite gas at upper corner |
| CN106337695B (en) * | 2016-09-23 | 2018-06-05 | 河南理工大学 | The comprehensive processing method that a kind of spontaneous combustion in goaf and gas at upper corner transfinite |
| CN106979030A (en) * | 2017-04-07 | 2017-07-25 | 煤科集团沈阳研究院有限公司 | A kind of variable load extraction pipeline and pumping method based on catalyzing denaturing principle |
| CN109519212A (en) * | 2019-01-21 | 2019-03-26 | 中煤科工集团重庆研究院有限公司 | The device and method of major diameter horizontal drilling bridge joint goaf mash gas extraction |
| CN111911226A (en) * | 2020-09-14 | 2020-11-10 | 中煤科工集团重庆研究院有限公司 | System and method for alternately extracting gas from return air corner of stope face |
| CN116971817A (en) * | 2023-09-25 | 2023-10-31 | 太原理工大学 | High-gas working face ventilation method for alternately entering and returning air in gallery |
| CN116971817B (en) * | 2023-09-25 | 2023-12-12 | 太原理工大学 | High-gas working face ventilation method for alternately entering and returning air in gallery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110126 |