CN101629490A - Full air pressure air borrowing method for coal mine underground tunneling roadway - Google Patents
Full air pressure air borrowing method for coal mine underground tunneling roadway Download PDFInfo
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- CN101629490A CN101629490A CN200910013198A CN200910013198A CN101629490A CN 101629490 A CN101629490 A CN 101629490A CN 200910013198 A CN200910013198 A CN 200910013198A CN 200910013198 A CN200910013198 A CN 200910013198A CN 101629490 A CN101629490 A CN 101629490A
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- door
- air duct
- digging laneway
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Abstract
The invention discloses a full air pressure air borrowing method for a coal mine underground tunneling roadway, which adopts the following technical scheme: in the process of coal mine roadway tunneling, a local fan is required to supply air for the tunneling roadway, and shutdown of the local fan due to fault easily causes gas accumulation; a local ventilating device in the tunneling roadway adopts a fan installed in an air inlet roadway to extend to a fan drum in the tunneling roadway to supply air for the tunneling roadway; the last air in the roadway is led out by negative pressure of a main mine ventilator. In the method, an air borrowing door is built in the roadway on the position of the full air pressure at the air inlet side of the tunneling roadway and is provided with a shutter and a fan drum opening with a baffle; the fan drum opening is communicated with an air supply drum in the tunneling roadway by tee joint; Under normal conditions, the shutter is rolled up and the baffle of the fan drum opening is closed to keep normal ventilation of the roadway; when the local fan shuts down, the baffle of the fan drum opening is opened, the roller shades of the shutter are put down and the mine ventilation negative pressure is adopted to supply air for the tunneling roadway to prevent gas accumulation so as to realize the purpose of secure production.
Description
One, technical field
The present invention is a kind of air supply method that is applied to coal mine underground tunneling roadway, is to the method for digging laneway air feed when booster is stopped transport.
Two, background technology
Need in the coal mine roadway tunneling process by booster to the digging laneway air feed, get rid of toxic and harmful and dust in the tunnel, supply operating personnel fresh air.Its air supply mode has three kinds: forced, pull-out type, hybrid.Coal road, half coal rock tunnel and the rock gangway that has gas to gush out adopt the forced ventilation mode.Booster has power failure and mechanical breakdown unavoidably in running, the stoppage in transit phenomenon occurs.Booster idle time is long, can cause methane accumulation in the digging laneway that has gas to gush out, as deal with improperly, and gas accident takes place easily.Especially in the tunnel that the bump threatening area is arranged, if bump takes place during methane accumulation, the metallic support compression produces spark, very easily causes the great disaster of gas explosion.According to statistics, coal mine gas accident majority occurs in digging laneway.
Generally take when home and abroad colliery digging laneway booster is stopped transport to have a power failure, remove the people, fence is set, send measures such as electric firedamp drainage when booster resumes operation.When the digging laneway blowing-out surpasses 24 hours, take the enclosing tunnel measure.Do not guarantee the method for the normal air feed of digging laneway effectively.
Three, summary of the invention
For preventing digging laneway generation gas accident, the present invention proposes a kind of full air pressure air borrowing, the normal air feed of digging laneway is realized the purpose of keeping the safety in production when guaranteeing that booster is stopped transport.
The mine ventilation method is divided into forced (positive-pressure type method of ventilation) and pull-out type (suction type method of ventilation).Owing to the exhaust ventilation method helps mine gas and fire prevention management, so high gas and easy spontaneous combustion main fan in mine generally adopt pull-out type (suction type) method of ventilation.The blast that main fan in mine produces is that full blast is pressed, and the present invention utilizes full blast to press the digging laneway aerating of stopping transport to booster.
The technical solution used in the present invention is: digging laneway local ventilation device is by being arranged on booster in the inlet air tunnel by extending to air feed air duct air feed in digging laneway of digging laneway, and the weary wind in the tunnel is drawn by the main fan in mine negative pressure.The present invention constructs to borrow air door together in tunnel, digging laneway inlet air side full blast pressure place, by means of on the air door rolling door and baffled air duct mouth is being arranged; And on the air feed air duct, connect a threeway, the air duct mouth is communicated with digging laneway air feed air duct by threeway.Using method: under the normal condition, rolling door is rolled, borrowed air door windward nozzle flapper closure, keep the tunnel normally to ventilate; When local ventilation fan is stopped transport, will open by means of air door windward nozzle baffle plate, put down the rolling door roller shutter, utilize the mine ventilation negative pressure, to the digging laneway air feed.
The inventive method only need be constructed simple and easy together by means of air door, uses air duct to be connected with digging laneway air feed air duct, and facility is constructed simply, cost is low, borrows the wind implementation and operation flexibly, easily, conveniently.Use this method, not blowing-out of digging laneway when having accomplished the booster blowing-out guarantees air feed under the interior nonproductive state of digging laneway, prevents that effectively pernicious gas from gathering, and plays the effect that guarantees Field Force's safety and prevent gas accident.
Four, description of drawings
1, Fig. 1 is the local ventilation of the inventive method and borrows the wind apparatus floor map;
2, Fig. 2 be Figure 1A-A borrow the air door structure schematic diagram.
Five, the specific embodiment
The inventive method is before all digging laneway 1 constructions, construct apart from digging laneway 10m full blast pressure place together by means of air door 2 in digging laneway inlet air side, borrow the air duct mouth 13 on the air door to be communicated with digging laneway air feed air duct 4, form the standby full air pressure air borrowing device of digging laneway by air duct 3.When booster 5 blowing-outs, enable this device to the digging laneway air feed.Borrow air door 2 to determine material, generally speaking, adopt the lumps of wood to build doorframe 6, build a wall 7 with air duct cloth according to the tunnel situation.Borrow the rolling door doorway 8 of air door to be chosen in tunnel pedestrian and rail side, section must guarantee that the tunnel normally ventilates and is open to traffic and pedestrian's needs, and installs rolling door 9.Rolling door 9 usefulness air duct cloth are made, and top is fixed on the upper side frame of doorway with plank 10, and the bottom is rolled after fixing with rod 11.Borrow air door air duct mouth 13 to be chosen in the Men Qiang appropriate location and be provided with, generally above air door, be connected with doorframe, air duct mouth 13 iron rings are fixed on the plank 12 with plank 12, but and at the baffle plate 14 of air duct mouth setting switch.On digging laneway air feed air duct 4, connect a threeway 15, link to each other with borrowing air door windward nozzle 13 by air duct 3.During booster 5 normal operations, rolling door 9 is rolled, borrowed air door windward nozzle baffle plate 14 to close, keep the tunnel normally to ventilate; When booster 5 is stopped transport, will open, put down the rolling door roller shutter, utilize the mine ventilation negative pressure, to the digging laneway air feed by means of air door windward nozzle baffle plate 14.
Claims (2)
1, a kind of full air pressure air borrowing, digging laneway local ventilation device is by being arranged on booster (5) in the inlet air tunnel by extending to air feed air duct (4) air feed in digging laneway of digging laneway (1), weary wind in the tunnel is drawn by the main fan in mine negative pressure, it is characterized in that: in tunnel, digging laneway inlet air side full blast pressure place, construct and borrow air door (2) together, borrowing the air duct mouth (13) that on the air door (2) rolling door (9) is arranged and have baffle plate (14); And on air feed air duct (4), connect a threeway (15), air duct mouth (13) is communicated with digging laneway air feed air duct (4) by threeway (15); Under the normal condition, rolling door (9) is rolled, air duct mouth baffle plate (14) is closed, and keeps the tunnel normally to ventilate; When local ventilation fan (5) is stopped transport, air duct mouth baffle plate (14) is opened, put down the rolling door roller shutter, utilize the mine ventilation negative pressure, to the digging laneway air feed.
2, full air pressure air borrowing according to claim 1, it is characterized in that: construct by means of air door (2) apart from digging laneway 10m full blast pressure place in digging laneway inlet air side, borrow air door (2) to adopt the lumps of wood to build doorframe (6), build Men Qiang (7) with air duct cloth, borrow the rolling door doorway (8) of air door to be chosen in tunnel pedestrian and rail side, section must guarantee that the tunnel normally ventilates and is open to traffic and pedestrian's needs; Rolling door (9) is made of air duct cloth, and top is fixed on the upper side frame of doorway with plank (10), and the bottom is rolled after fixing with rod (11); Borrow air door air duct mouth (13) to be connected with doorframe, air duct mouth (13) iron ring is fixed on the plank (12) with plank (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100131986A CN101629490B (en) | 2009-08-12 | 2009-08-12 | Full air pressure air borrowing method for coal mine underground tunneling roadway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100131986A CN101629490B (en) | 2009-08-12 | 2009-08-12 | Full air pressure air borrowing method for coal mine underground tunneling roadway |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101629490A true CN101629490A (en) | 2010-01-20 |
| CN101629490B CN101629490B (en) | 2011-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100131986A Expired - Fee Related CN101629490B (en) | 2009-08-12 | 2009-08-12 | Full air pressure air borrowing method for coal mine underground tunneling roadway |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182926A (en) * | 2011-02-28 | 2011-09-14 | 煤炭科学研究总院重庆研究院 | Negative pressure adjustment system of coalbed methane collecting and conveying system in coal mining area and adjustment method of negative pressure adjustment system |
| CN102418544A (en) * | 2011-10-28 | 2012-04-18 | 山西晋城无烟煤矿业集团有限责任公司 | Gas control and dust fall method for overlapped section of air barrels in excavation roadway |
| CN103266907A (en) * | 2013-05-08 | 2013-08-28 | 西南交通大学 | Tunnel construction ventilation system for local gas outburst |
| CN105317453A (en) * | 2015-11-16 | 2016-02-10 | 中国矿业大学 | Dust removal method for waste rock smashing in underground coal mine chamber |
| CN113006852A (en) * | 2021-04-16 | 2021-06-22 | 云南滇东雨汪能源有限公司 | Automatic negative pressure air ducting of tunnelling working face |
| CN118167390A (en) * | 2024-03-27 | 2024-06-11 | 中煤科工集团沈阳研究院有限公司 | Device and method for treating blasting smoke under metal mine |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1009851B (en) * | 1987-05-26 | 1990-10-03 | 贵州工学院 | Automatic regulating system for overall ventilation of mines |
| KR100376761B1 (en) * | 2000-12-22 | 2003-03-19 | 주식회사 대우엔지니어링 | Wind pressure reduction system of tunnel using air shaft |
| JP3677472B2 (en) * | 2001-10-31 | 2005-08-03 | 靖雄 井手 | Road environment improvement device and road structure |
| JP3807332B2 (en) * | 2002-03-18 | 2006-08-09 | 日新電機株式会社 | How to determine tunnel traffic |
| CN1438405A (en) * | 2003-01-27 | 2003-08-27 | 张朝喜 | Method for preventing coal-mine underground gas and coal-dust from explosion |
| CN201095988Y (en) * | 2007-05-20 | 2008-08-06 | 山西省运城安瑞节能风机有限公司 | Mine ventilating fan remote on-line monitoring system |
-
2009
- 2009-08-12 CN CN2009100131986A patent/CN101629490B/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182926A (en) * | 2011-02-28 | 2011-09-14 | 煤炭科学研究总院重庆研究院 | Negative pressure adjustment system of coalbed methane collecting and conveying system in coal mining area and adjustment method of negative pressure adjustment system |
| CN102418544A (en) * | 2011-10-28 | 2012-04-18 | 山西晋城无烟煤矿业集团有限责任公司 | Gas control and dust fall method for overlapped section of air barrels in excavation roadway |
| CN103266907A (en) * | 2013-05-08 | 2013-08-28 | 西南交通大学 | Tunnel construction ventilation system for local gas outburst |
| CN105317453A (en) * | 2015-11-16 | 2016-02-10 | 中国矿业大学 | Dust removal method for waste rock smashing in underground coal mine chamber |
| CN105317453B (en) * | 2015-11-16 | 2017-07-11 | 中国矿业大学 | The dust collection method that spoil is crushed in a kind of underground coal mine chamber |
| CN113006852A (en) * | 2021-04-16 | 2021-06-22 | 云南滇东雨汪能源有限公司 | Automatic negative pressure air ducting of tunnelling working face |
| CN118167390A (en) * | 2024-03-27 | 2024-06-11 | 中煤科工集团沈阳研究院有限公司 | Device and method for treating blasting smoke under metal mine |
| CN118167390B (en) * | 2024-03-27 | 2024-09-17 | 中煤科工集团沈阳研究院有限公司 | Device and method for treating blasting smoke under metal mine |
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| Publication number | Publication date |
|---|---|
| CN101629490B (en) | 2011-05-25 |
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