CN206539373U - A kind of explosion-proof closed air bag of coal mine roadway - Google Patents
A kind of explosion-proof closed air bag of coal mine roadway Download PDFInfo
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- CN206539373U CN206539373U CN201720152886.0U CN201720152886U CN206539373U CN 206539373 U CN206539373 U CN 206539373U CN 201720152886 U CN201720152886 U CN 201720152886U CN 206539373 U CN206539373 U CN 206539373U
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- air bag
- interlayer
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- inner bladder
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Abstract
The utility model discloses a kind of explosion-proof closed air bag of coal mine roadway, belongs to prevention and control of mine disaster technical field, its structure mainly includes：Inner bladder, balloon outer, gas sample acquisition pipe.Closed air bag is using inside and outside double-layer air bag structure, and balloon outer is divided into multiple interlayers, and the utility model makes the energy expenditure of blast on the inside of confined space totally, it is ensured that the safety of the closed outer space in tunnel using form of the explosion gas to air bag compressed action.Closed means explosion-proof compared to traditional coal mine roadway, the utility model employs the technique that inside and outside air bag is inflated simultaneously, saves manpower and time, is conducive to disaster relief personnel to complete airtight execution as early as possible and withdraw, safe and reliable.In addition, during using closed gas bag sealing, the gas sample acquisition work of enclosed interior can be carried out, be conducive to analyzing the change of mine the condition of a disaster in time.
Description
Technical field
The utility model belongs to prevention and control of mine disaster technical field, and in particular to a kind of explosion-proof closed air bag of coal mine roadway.
Background technology
In colliery industry production process, gas and fire are main natural calamities, and the loss caused to colliery industry is not
It can estimate.During coal mine gas disaster and the fire disaster relief, closed tunnel is very common disaster relief technological means.Pass through lane
Road is closed, obstructs air flow and heat exchange inside and outside closed point, prevents that fire or gas explosion are wider to mine
Inside spread, so that it is guaranteed that being smoothed out for disaster relief work, casualty loss is controlled in minimum.The closed skill in the existing tunnel of China
Art, predominantly sandstone fill explosion-proof closed means, and its construction technology is cumbersome, the engineering time is long, are unfavorable for the rapid of personnel and remove
From not being inconsistent with the theory of emergency escape.And existing gas bag sealing technology generally use individual layer air bag structure, its low intensity,
It is mostly used for during the mine fire disaster relief, blocks the flowing of pernicious gas, and can not be explosion-proof.Therefore, the utility model is endeavoured
In researching and developing a kind of explosion-proof closed air bag of coal mine roadway, the defect that the closed technology in existing tunnel is present is solved, ore deposit is preferably ensured
Being smoothed out for well disaster relief process, promotes the safe operation of colliery industry.
The content of the invention
The utility model discloses a kind of explosion-proof closed air bag of coal mine roadway, and its configuration is approximately a cylindrical rubber gas
Capsule, different according to specification, its length is 4~6m, and cross-sectional area is 8~14m3, its structure mainly includes：Inner bladder, outer layer
Air bag, gas sample acquisition pipe.
The inner bladder is located inside balloon outer, and inside and outside two layers of air bag is connected by multigroup diaphragm of rubber, thus will be outer
Layer air bag is divided into 4~6 section interlayers in the longitudinal direction, and the interlayer for meeting quick-fried face positioned at air bag is referred to as meeting quick-fried interlayer, filled positioned at air bag
The interlayer at gas end is referred to as inflating interlayer, and remaining some interlayer of middle part are referred to as buffering interlayer.
Quick-fried interlayer, inner bladder, the inflation interlayer exterior material of meeting is made by high-strength nitrile butadiene rubber, with intensity
Height, impact resistance, resistance to elevated temperatures.Buffering interlayer exterior material, diaphragm of rubber are made by synthesizing butadiene rubber, with wear-resisting, bullet
Good, the fire-retardant performance of property.
2 spaced valves are installed between the balloon outer adjacent spacers, two charge valves are installed in inflation interlayer tail end, point
Not Wei outer layer charge valve and internal layer charge valve, above-mentioned each valve is check valve.Inner bladder is drawn one to outside closed air bag and filled
Airway, connects internal layer charge valve, the inflation for inner bladder.Inner bladder and each interlayer of balloon outer are mounted on losing heart
Valve, inner bladder draws a discouraged conduit to outside closed air bag, connects internal layer charge valve, for losing heart for inner bladder.
The gas sample acquisition pipe is metal bellows material, flexible, and with some strength, the pipe is adhered to by sling
In outside balloon outer, after airbag aeration, gas sample acquisition pipe is sandwiched between wall and gasbag outer surface, and ensure that it is managed
The connectedness on road.
The operating air pressure of the exterior airbag is less than the operating air pressure of inner balloon, is conducive to the flexible and change that air bag is overall
Shape, and then can be closely sturdy with wall, it is ensured that obturation effect.
A kind of explosion-proof closed air bag of coal mine roadway, it is characterised in that main operational steps are as follows：
Step 1: preparation
With reference to air bag specification, drift section actual conditions, it is determined that the gas volume of required injection, and inner bladder work
Make pressure value P1With the working pressure P of balloon outer2.According to equation of gaseous state, high pressure bottled nitrogen specification and parameter are calculated,
Select the high-pressure nitrogen bottle of appropriate size.Explosion-proof closed air bag, high-pressure nitrogen bottle, loading line are transported to tunnel by electric locomotive
The closed position of design, suitably clears up the debris in closed place, air bag is spread out, is laid in tunnel ground.
Step 2: airbag aeration
Ectonexine air bag is inflated simultaneously, so as to greatly save the operating time.
The charge operation process of balloon outer is：High-pressure nitrogen bottle and outer layer charge valve are connected with loading line, by outer
Spaced valve between layer charge valve and interlayer is followed successively by each section interlayer inflation of balloon outer.After inflation, balloon outer can be borrowed
The elasticity for helping synthesis butadiene rubber good is brought into close contact with wall.
The charge operation process of inner bladder is：Connect high-pressure nitrogen bottle and internal layer charge valve with loading line, directly by
Internal layer charge valve is inflated by inflating catheter for inner bladder.
After the completion of inflation, high-pressure nitrogen bottle and loading line are pulled down, personnel and auxiliary equipment are withdrawn from.When the closed inner side in tunnel
Generation gas explosion, explosion gas impacts closed air bag, and compressing gasbag does work to it, so as to consume the energy of gas explosion, protects
Demonstrate,prove the safety of the closed outside in tunnel.When the severe friction that balloon outer saves interlayer and wall causes in rupture, other interlayers
Layer air bag can continue to air-tightness, so as to keep the seal in tunnel to a certain extent, it is ensured that closed and explosion-proof effect.
Step 3: gas sample data monitoring
In closed period, for ease of the parameter such as air themperature, gas density, oxygen concentration of monitoring enclosed interior in real time,
Gas sample is extracted by gas sample acquisition pipe by staff's timing, joined using the air of the closed inner side in chromatographic tunnel
Number, so as to make further analysis to enclosed interior disasters danger.
Step 4: air bag is reclaimed
After closed end, closed area is broken seal, closed air bag is now reclaimed.Start letting out for inner bladder first
Air valve, carries out inner bladder and loses heart, after terminating, balloon outer starts each interlayer successively from inflation interlayer to quick-fried interlayer direction is met
Gas bleeder valve, complete lose heart work, closed airbag fold is reclaimed.
The utility model, to the form of air bag compressed action, makes the energy expenditure of blast totally using explosion gas, it is ensured that
The safety of the closed outer space in tunnel.Compared to the closed technology in existing tunnel, main useful achievement of the present utility model is：Should
Coal mine roadway explosion-proof closed air bag in colliery fills explosion-proof closed means compared to traditional sandstone, and technique is simple and easy to operate, interior outer gas
Capsule is inflated simultaneously, saves manpower and time, is conducive to disaster relief personnel to complete airtight execution as early as possible and withdraw, has been ensured personnel's
Life security.Closed airbag structure is using inside and outside double-layer air bag structure, and balloon outer is divided into multiple interlayers, safe and reliable.
In addition, during using closed gas bag sealing, the gas sample acquisition work of enclosed interior can be carried out, be conducive to analyzing the condition of a disaster change in time
Feelings.
Brief description of the drawings
Below in conjunction with the accompanying drawings, further clear, complete explanation is made to the utility model：
Fig. 1 is the explosion-proof closed airbag structure schematic diagram of coal mine roadway
Description of reference numerals：
In figure：1st, quick-fried interlayer is met, 2, buffering interlayer, 3, inflation interlayer, 4, outer layer charge valve, 5, internal layer gas bleeder valve, 6, outer
Layer gas bleeder valve, 7, high-pressure nitrogen bottle, 8, spaced valve, 9, diaphragm of rubber, 10, gas sample acquisition pipe, 11, inflating catheter, 12, internal layer fills
Air valve, 13, lose heart conduit, 14, inner bladder
Embodiment
The utility model provides a kind of explosion-proof closed air bag of coal mine roadway, below by drawings and examples, with certain ore deposit
It is engineering background that technology during 2201 working face extractions, which is applied, and the technical solution of the utility model is done and further retouched in detail
State.
The closed air bag proposed first to the utility model is explained as follows：
A kind of explosion-proof closed air bag of coal mine roadway, its configuration is approximately a cylindrical rubber air bag, according to specification not
Together, its length is 4~6m, and cross-sectional area is 8~14m2, its structure mainly includes：Inner bladder 14, balloon outer, gas sample are adopted
Collector 10.With reference to 2201 return airway actual sizes, from cross-sectional area 10m2, length is 6m explosion-proof closed air bag.
The inner bladder 14 is located inside balloon outer, and inside and outside two layers of air bag is connected by multigroup diaphragm of rubber 9, thus will
Balloon outer is divided into 6 section interlayers in the longitudinal direction, and the interlayer for meeting quick-fried face positioned at air bag is referred to as meeting quick-fried interlayer 1, filled positioned at air bag
The interlayer at gas end is referred to as inflating interlayer 3, and remaining some interlayer of middle part are referred to as buffering interlayer 2.Meet quick-fried interlayer 1, inner bladder 14, fill
The exterior material of air-casing 3 is made by high-strength nitrile butadiene rubber, with intensity height, impact resistance, resistance to elevated temperatures.Buffer outside interlayer 2
Portion's material, diaphragm of rubber 9 are made by synthesizing butadiene rubber, with performance wear-resisting, that elasticity is good, fire-retardant.
2 spaced valves 8 are installed between balloon outer adjacent spacers, two charge valves are installed in the inflation tail end of interlayer 3, respectively
For outer layer charge valve 4 and internal layer charge valve 12, above-mentioned each valve is check valve.Inner bladder 14 draws one to outside closed air bag
Inflating catheter 11, connection internal layer charge valve 12, the inflation for inner bladder.Inner bladder 14 and each interlayer of balloon outer are pacified
Equipped with gas bleeder valve, inner bladder 14 draws a discouraged conduit 13, connection internal layer charge valve 12, for internal layer to outside closed air bag
Air bag lose heart.
The gas sample acquisition pipe 10 is metal bellows material, flexible, and with some strength, the pipe is attached by sling
In outside balloon outer, after airbag aeration, gas sample acquisition pipe 10 is sandwiched between wall and gasbag outer surface, and ensure that
The connectedness of its pipeline.
The operating air pressure of the exterior airbag is less than the operating air pressure of inner balloon, is conducive to the flexible and change that air bag is overall
Shape, and then can be closely sturdy with wall, it is ensured that obturation effect.
During certain working face extraction of ore deposit 2201, face gas concentration seriously transfinites, according to associated safety code, plan pair
The working face is closed, and closed together with working face haulage gate and the air return way respectively construction, decision uses the utility model
The explosion-proof closed air bag of coal mine roadway of proposition.Technology application process is as follows：
First combine air bag specification, drift section actual conditions, determine inner bladder 14 working pressure 0.3MPa and
The working pressure 0.12MPa of balloon outer.According to equation of gaseous state, high pressure bottled nitrogen specification and parameter are calculated, selection is closed
The high-pressure nitrogen bottle 7 of suitable specification.Explosion-proof closed air bag, high-pressure nitrogen bottle 7, loading line are transported to tunnel design by electric locomotive
Closed position, suitably clear up the debris in closed place, air bag spread out, be laid in tunnel ground.
Inside and outside airbag aeration is respectively operated simultaneously by two staff, and the charge operation process of balloon outer is：With inflation
Pipeline connects high-pressure nitrogen bottle and outer layer charge valve, and outer layer gas is followed successively by by the spaced valve 8 between outer layer charge valve 4 and interlayer
Each section interlayer inflation of capsule.After inflation, balloon outer can closely be pasted by the good elasticity of synthesis butadiene rubber with wall
Close.The charge operation process of inner bladder 14 is：High-pressure nitrogen bottle and internal layer charge valve 12 are connected with loading line, directly by interior
Layer charge valve 12 is that inner bladder 14 is inflated by inflating catheter 11.
When gas explosion occurs for the closed inner side in tunnel, explosion gas impacts closed air bag, and compressing gasbag does work to it, from
And consume the energy of gas explosion, it is ensured that the safety of the closed outside in tunnel.When balloon outer saves the violent of interlayer and wall
Friction causes rupture, and other interlayer inner bladders 14 can continue to air-tightness, so as to keep the close of tunnel to a certain extent
Closing property, it is ensured that closed and explosion-proof effect.
After the completion of inflation, high-pressure nitrogen bottle 7 and loading line are pulled down, personnel and auxiliary equipment are withdrawn from.In closed period, it is
It is easy to the parameter such as air themperature, gas density, oxygen concentration of monitoring enclosed interior in real time, by staff in air return way
Timing extracts gas sample by gas sample acquisition pipe 10, using the air parameter of the closed inner side in chromatographic tunnel, so that right
Enclosed interior disasters danger makes further analysis.
According to underground monitoring data, after closed 50 days, gas density and index of correlation gas concentration are extensive inside confined space
Again to level of security, decide and closed area is broken seal, now reclaim closed air bag.Start internal layer gas bleeder valve 5 first, enter
Row inner bladder is lost heart, after terminating, and balloon outer starts losing heart for each interlayer successively from inflation interlayer 3 to the quick-fried direction of interlayer 1 is met
Valve, completes work of losing heart, closed airbag fold is reclaimed.
Claims (1)
1. a kind of explosion-proof closed air bag of coal mine roadway, its configuration is approximately a cylindrical rubber air bag, different according to specification,
Its length is 4~6m, and cross-sectional area is 8~14m3, its structure mainly includes：Inner bladder, balloon outer, gas sample acquisition pipe；
The inner bladder is located inside balloon outer, and inside and outside two layers of air bag is connected by multigroup diaphragm of rubber, thus by outer layer gas
Capsule is divided into 4~6 section interlayers in the longitudinal direction, and the interlayer for meeting quick-fried face positioned at air bag is referred to as meeting quick-fried interlayer, positioned at airbag aeration end
Interlayer be referred to as inflate interlayer, remaining some interlayer of middle part be referred to as buffer interlayer；
Meet quick-fried interlayer, inner bladder, inflation interlayer exterior material made by high-strength nitrile butadiene rubber, with intensity height, impact resistance,
Resistance to elevated temperatures；
Buffering interlayer exterior material, diaphragm of rubber are made by synthesizing butadiene rubber, with performance wear-resisting, that elasticity is good, fire-retardant；
2 spaced valves are installed between balloon outer adjacent spacers, two charge valves, respectively outer layer are installed in inflation interlayer tail end
Charge valve and internal layer charge valve, above-mentioned each valve are check valve, and inner bladder draws an inflating catheter to outside closed air bag, even
Internal layer charge valve is connect, the inflation for inner bladder；
Inner bladder and each interlayer of balloon outer are mounted on gas bleeder valve, and inner bladder, which is drawn one to outside closed air bag and lost heart, to be led
Pipe, connects internal layer charge valve, for losing heart for inner bladder；
The gas sample acquisition pipe is metal bellows material, flexible, and with some strength, the pipe is attached to outer by sling
Outside layer air bag, after airbag aeration, gas sample acquisition pipe is sandwiched between wall and gasbag outer surface, and ensure that its pipeline
It is connective；
The operating air pressure of the exterior airbag is less than the operating air pressure of inner balloon, is conducive to the flexible and deformation that air bag is overall,
And then can be closely sturdy with wall, it is ensured that obturation effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720152886.0U CN206539373U (en) | 2017-02-20 | 2017-02-20 | A kind of explosion-proof closed air bag of coal mine roadway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720152886.0U CN206539373U (en) | 2017-02-20 | 2017-02-20 | A kind of explosion-proof closed air bag of coal mine roadway |
Publications (1)
| Publication Number | Publication Date |
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| CN206539373U true CN206539373U (en) | 2017-10-03 |
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ID=59948813
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| CN201720152886.0U Expired - Fee Related CN206539373U (en) | 2017-02-20 | 2017-02-20 | A kind of explosion-proof closed air bag of coal mine roadway |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761925A (en) * | 2017-02-20 | 2017-05-31 | 中国矿业大学(北京) | A kind of explosion-proof closed air bag of coal mine roadway |
| CN108729949A (en) * | 2018-05-21 | 2018-11-02 | 辽宁工程技术大学 | A kind of underground connection roadway rapid sealing device and its application method |
| CN110985098A (en) * | 2020-01-02 | 2020-04-10 | 中国矿业大学(北京) | Anti-explosion multi-bag quick-sealing air bag and using method thereof |
| CN111206959A (en) * | 2020-01-02 | 2020-05-29 | 贵州工程应用技术学院 | Explosion-proof airtight gasbag of coal mine tunnel |
| CN113914930A (en) * | 2021-10-29 | 2022-01-11 | 成都未来智隧科技有限公司 | Tunnel smoke dust treatment equipment and system |
-
2017
- 2017-02-20 CN CN201720152886.0U patent/CN206539373U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761925A (en) * | 2017-02-20 | 2017-05-31 | 中国矿业大学(北京) | A kind of explosion-proof closed air bag of coal mine roadway |
| CN108729949A (en) * | 2018-05-21 | 2018-11-02 | 辽宁工程技术大学 | A kind of underground connection roadway rapid sealing device and its application method |
| CN108729949B (en) * | 2018-05-21 | 2021-06-18 | 辽宁工程技术大学 | Rapid sealing device for underground communication roadway and using method thereof |
| CN110985098A (en) * | 2020-01-02 | 2020-04-10 | 中国矿业大学(北京) | Anti-explosion multi-bag quick-sealing air bag and using method thereof |
| CN111206959A (en) * | 2020-01-02 | 2020-05-29 | 贵州工程应用技术学院 | Explosion-proof airtight gasbag of coal mine tunnel |
| CN111206959B (en) * | 2020-01-02 | 2021-07-06 | 贵州工程应用技术学院 | Explosion-proof airtight gasbag of coal mine tunnel |
| CN113914930A (en) * | 2021-10-29 | 2022-01-11 | 成都未来智隧科技有限公司 | Tunnel smoke dust treatment equipment and system |
| CN113914930B (en) * | 2021-10-29 | 2024-04-05 | 成都未来智隧科技有限公司 | Tunnel smoke and dust treatment facility and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171003 Termination date: 20190220 |