CN104454002A - Rapid plugging system for gas explosion of coal mine - Google Patents
Rapid plugging system for gas explosion of coal mine Download PDFInfo
- Publication number
- CN104454002A CN104454002A CN201410569514.9A CN201410569514A CN104454002A CN 104454002 A CN104454002 A CN 104454002A CN 201410569514 A CN201410569514 A CN 201410569514A CN 104454002 A CN104454002 A CN 104454002A
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- CN
- China
- Prior art keywords
- air bag
- upper track
- coal mine
- shock wave
- lower tracks
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004880 explosion Methods 0.000 title claims abstract description 35
- 239000003245 coal Substances 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 230000035939 shock Effects 0.000 claims abstract description 39
- 239000007789 gas Substances 0.000 claims description 42
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 14
- 230000000903 blocking effect Effects 0.000 claims description 12
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- 239000000919 ceramic Substances 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 5
- 229920001778 nylon Polymers 0.000 claims description 5
- 239000007800 oxidant agent Substances 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- 229910052708 sodium Inorganic materials 0.000 claims description 5
- 239000011734 sodium Substances 0.000 claims description 5
- -1 sodium nitride Chemical class 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000005507 spraying Methods 0.000 abstract 5
- 238000002955 isolation Methods 0.000 abstract 1
- 210000001503 joint Anatomy 0.000 abstract 1
- 238000000034 method Methods 0.000 description 13
- 230000008054 signal transmission Effects 0.000 description 4
- 239000000779 smoke Substances 0.000 description 4
- 238000005273 aeration Methods 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 230000034994 death Effects 0.000 description 1
- 231100000517 death Toxicity 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/103—Dams, e.g. for ventilation
- E21F17/107—Dams, e.g. for ventilation inflatable
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/14—Fluid barriers or rock dusters made to work by, or at the same time as, shots or explosions
- E21F5/143—Fluid barriers
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Air Bags (AREA)
Abstract
A rapid plugging system for gas explosion of a coal mine comprises a shock wave sensor, air bags, air inflation devices, a water spraying device, upper sliding bases, telescopic rods, lower sliding bases, horizontal rods, upper tracks, lower tracks and water spraying pipes. The shock wave sensor is connected with air inflation systems in the air bags and the water spraying device. The two ends of the top of each air bag are connected with the corresponding upper sliding bases, and the lower ends of the air bags are connected with the lower ends of the telescopic rods. The top ends of the telescopic rods are connected with the upper sliding bases, and the telescopic rods can be connected with the lower sliding bases in a butt joint mode. The left upper sliding bases are connected with the right upper sliding bases through the horizontal rods, every two adjacent upper sliding bases are connected through a spring, and every two adjacent lower sliding bases are connected through a spring. The water spraying pipes are arranged in the upper tracks and the lower tracks and connected with the water spraying device. The rapid plugging system is good in isolation effect, safe, reliable, high in automation degree, and capable of effectively preventing spreading of gas explosion, eliminating or controlling the influence of gas explosion on other tunnels, preventing tremendous disasters and accidents of the coal mine and achieving safety production of the coal mine.
Description
Technical field
The invention belongs to the safe Treatment process field of colliery anti-gas explosion, be specifically related to a kind of coal mine gas from explosion quick blocking system.
Background technology
At present, China's coal-mine is based on pit mining, and the mine of 70% is gaseous mine.Generate a large amount of pernicious gas after gas explosion, the gas ingredients that some colliery is analyzed after blast is O 6% ~ 10%, N 82% ~ 88%, CO 4% ~ 8%, CO2% ~ 4%.If there is coal dust to participate in blast, the growing amount of CO is larger, often becomes the main cause of a large amount of injures and deaths of personnel.Mine is once breaking out of fire or gas explosion accident can bring tremendous economic to lose and worker Personal Risk to mine, the further expansion controlling disaster after disaster occurs is task main, usually the measure taked is exactly the target tunnel in quick closure disaster region, disaster region internal cause anoxic and make that fire extinguishes, gas anoxic and no longer exploding, thus hazard scope is effectively controlled.
Traditional prevent fire and gas explosion expanded range to measure be construct fire wall fast, with closed disaster region in target tunnel in hazard scope.If construct the period generation secondary gas explosion personnel that very easily cause to injure, the carbon monoxide that fire produces very easily causes the personnel of return side poisoning.
Summary of the invention
The present invention, in order to solve weak point of the prior art, provides the coal mine gas from explosion quick blocking system that a kind of structure is simple, automaticity is high, isolated plugging effect is good, safe and reliable.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: coal mine gas from explosion quick blocking system, comprise shock wave inductor 1, upper track 11, lower tracks 12 and water injector 4, upper track 11 and lower tracks 12 respectively level are provided with two and upper and lower corresponding layout, upper track 11 is equipped with lower tracks 12 inside the sparge pipe 13 be connected with water injector 4, every root upper track 11 slidably connects at least three top slides 6, the upper springs 10 be set in upper track 11 is provided with between adjacent two top slides 6, every root lower tracks 12 slidably connects at least three bottom slides 8, the lower springs 14 be set in lower tracks 12 is provided with between adjacent two bottom slides 8, the length of upper springs 10 and lower springs 14 is equal, top slide 6 and bottom slide 8 are corresponding up and down all one by one to be arranged, each top slide 6 soffit is all vertically provided with a corresponding expansion link 7 vertical with bottom slide 8, bottom slide 8 upper surface is provided with the groove inserted for expansion link 7 lower end, an air bag 2 is all connected with between two top slides 6 that in two upper track 11, left and right is corresponding, air bag 2 is made up of inside and outside double-layer structure, expansion link 7 lower end is fixedly connected with bottom air bag 2, be equipped with aerating device 3 in each air bag 2, shock wave inductor 1 is located at and is connected with aerating device 3 and water injector 4 respectively by data signal line.
The internal layer of described air bag 2 is made up of the nylon fiber of interior coat with rubber, and the skin of air bag 2 is made up of high strength ceramics fiber, each air bag 2 is equipped with a safety valve 5.
The rough surface of described upper track 11 and lower tracks 12, top slide 6 has force of sliding friction when upper track 11 is slided, and bottom slide 8 has force of sliding friction when lower tracks 12 is slided.
Described aerating device 3 comprises igniter, powder squib, sodium nitride oxidizer and compressed nitrogen.
The length direction of described upper track 11 and lower tracks 12 is fore-and-aft direction, and sparge pipe 13 front opening is also provided with shower nozzle 15, four sparge pipe 13 front end bendings all to the inside; Shock wave inductor 1 is located at the front of sparge pipe 13.
Connected by horizon bar 9 between two top slides 6 that in two upper track 11, left and right is corresponding.
Also comprise the hand switch 17 at the rear being located at sparge pipe 13, hand switch 17 is connected with aerating device 3 and water injector 4 respectively by signal control line.
Adopt technique scheme, specific operation process of the present invention is:
(1), first need the main distribution place understanding this mine gas explosion, in the main target tunnel of gas explosion process, the present invention is installed;
(2), at the top in target tunnel and bottom lay upper track and lower tracks respectively, and top slide, bottom slide and spring are equidistantly placed in upper track and lower tracks;
(3), by expansion link weld mutually with top slide, and extend the position of check and correction bottom slide upper surface groove downwards, make it connect;
(4), by the upper end of air bag be connected with top slide, lower end is connected with expansion link lower end, then expansion link is become contraction state, makes air bag be contracted in top, target tunnel;
(5), by shock wave inductor be arranged in the region that gas is easily blasted, and be connected with aerating device, water injector respectively, and water injector is connected with the sparge pipe in lower tracks with upper track respectively;
(6), when shock wave inductor senses the shock wave that gas explosion produces, signal is transferred on aerating device and water injector by shock wave inductor respectively, air bag fast aeration is expanded, expansion link is driven to be connected with bottom slide, by the complete shutoff in whole target tunnel, make water injector work simultaneously, sprayed water to air bag front end by the shower nozzle of sparge pipe front end, form water smoke, the high-temperature gas preventing gas explosion from producing produces air bag and destroys, in target tunnel, several air bags are by target laneway plugging, thus complete whole shutoff process; If miner runs into shock wave in actual production process, can hand switch be opened, air bag is normally worked.
(7), regularly said apparatus detected and keep in repair.
Lower tracks is laid along ground, target tunnel, upper track is arranged on target tunnel top inner wall, shock wave inductor is arranged on the Coal Seam Prone To Outburst place in target tunnel, when shock wave inductor senses the shock wave that gas explosion produces, by signal transmission to the aerating device in air bag, give water injector signal transmission simultaneously, water injector is supplied water to sparge pipe.
The igniter of aerating device lights powder squib, sodium nitride oxidizer is burnt and generates nitrogen stream, discharge compressed nitrogen simultaneously, make air bag rapid expanding.Air bag expands downwards, drive expansion link extends, until expansion link lower end is inserted in the groove of bottom slide, now air bag is by the cross section shutoff of target tunnel, two, left and right top slide connects as one by horizon bar, guarantee that top slide can not deflection in sliding process, top slide and bottom slide connect as one by expansion link, under the effect of shock wave, due to upper track and lower track surface coarse, top slide and bottom slide slide in upper track and lower tracks respectively and produce energy in friction, and the energy of shock wave is declined.
The internal layer of air bag is made up of the nylon fiber of interior coat with rubber, and the skin of air bag is made up of high strength ceramics fiber, can bear larger shock wave.
Safety valve is located on air bag, can carry out certain exhaust, prevent air bag from exploding when air bag pressurized is excessive.
Top slide and bottom slide lay respectively in upper track and lower tracks, can also produce energy in friction, the energy of shock wave is declined in the effect lower slider of shock wave.
Be provided with sparge pipe in upper track and lower tracks, the water of the shower nozzle generation of sparge pipe front end is sprayed onto in target tunnel and forms water smoke, and the high-temperature gas preventing gas explosion from producing produces air bag and destroys.
Spring produces elastic potential energy along upper track and bottom slide along shrinking in the slide sliding process of bottom at top slide, and the energy of shock wave is declined.
The invention has the beneficial effects as follows: structure is simple, intensity is high, can large volume shutoff, simple process, safe and reliable, insulating good, the fireballing feature of shutoff, meet the requirement of safe and efficient shutoff, be widely used in the improvement of coal mine gas from explosion.The present invention is arranged in the main target tunnel of control gas diffusion, can effectively prevent gas explosion from propagating further, eliminates or the impact of control gas blast on other target tunnels, prevents the generation of colliery serious disasters and accidents, realize the safety in production in colliery.
Accompanying drawing explanation
Fig. 1 is the section structure schematic diagram of the present invention along target roadway layout;
Fig. 2 is the section structure schematic diagram after air bag of the present invention expands;
Fig. 3 is top view of the present invention;
Fig. 4 is the structural representation of the present invention along target roadway direction;
Fig. 5 is the perspective view that expansion link of the present invention is connected with top slide and bottom slide respectively;
In figure: 1-shock wave inductor, 2-air bag, 3-aerating device, 4-water injector, 5-safety valve, 6-top slide, 7-expansion link, 8-bottom slide, 9-horizon bar, 10-upper springs, 11-upper track, 12-lower tracks, 13-sparge pipe, 14-lower springs, 15-shower nozzle, 16-target tunnel, 17-hand switch.
Detailed description of the invention
As shown in Fig. 1 ~ Fig. 5, coal mine gas from explosion quick blocking system of the present invention, comprise shock wave inductor 1, upper track 11, lower tracks 12 and water injector 4, upper track 11 and lower tracks 12 respectively level are provided with two and upper and lower corresponding layout, upper track 11 is equipped with lower tracks 12 inside the sparge pipe 13 be connected with water injector 4, every root upper track 11 slidably connects at least three top slides 6, the upper springs 10 be set in upper track 11 is provided with between adjacent two top slides 6, every root lower tracks 12 slidably connects at least three bottom slides 8, the lower springs 14 be set in lower tracks 12 is provided with between adjacent two bottom slides 8, the length of upper springs 10 and lower springs 14 is equal, top slide 6 and bottom slide 8 are corresponding up and down all one by one to be arranged, each top slide 6 soffit is all vertically provided with a corresponding expansion link 7 vertical with bottom slide 8, bottom slide 8 upper surface is provided with the groove inserted for expansion link 7 lower end, an air bag 2 is all connected with between two top slides 6 that in two upper track 11, left and right is corresponding, air bag 2 is made up of inside and outside double-layer structure, expansion link 7 lower end is fixedly connected with bottom air bag 2, be equipped with aerating device 3 in each air bag 2, shock wave inductor 1 is located at and is connected with aerating device 3 and water injector 4 respectively by data signal line.
The internal layer of described air bag 2 is made up of the nylon fiber of interior coat with rubber, and the skin of air bag 2 is made up of high strength ceramics fiber, each air bag 2 is equipped with a safety valve 5.
The rough surface of described upper track 11 and lower tracks 12, top slide 6 has force of sliding friction when upper track 11 is slided, and bottom slide 8 has force of sliding friction when lower tracks 12 is slided.
Described aerating device 3 comprises igniter, powder squib, sodium nitride oxidizer and compressed nitrogen.
The length direction of described upper track 11 and lower tracks 12 is fore-and-aft direction, and sparge pipe 13 front opening is also provided with shower nozzle 15, four sparge pipe 13 front end bendings all to the inside; Shock wave inductor 1 is located at the front of sparge pipe 13.
Connected by horizon bar 9 between two top slides 6 that in two upper track 11, left and right is corresponding.
Also comprise the hand switch 17 at the rear being located at sparge pipe 13, hand switch 17 is connected with aerating device 3 and water injector 4 respectively by signal control line.
Specific operation process of the present invention is:
(1), first need the main distribution place understanding this mine gas explosion, in the main target tunnel 16 of gas explosion process, the present invention is installed;
(2), at the top in target tunnel 16 and bottom lay upper track 11 and lower tracks 12 respectively, and top slide 6, bottom slide 8 and spring are equidistantly placed in upper track 11 and lower tracks 12;
(3), by expansion link 7 weld mutually with top slide 6, and extend the position of check and correction bottom slide 8 upper surface groove downwards, make it connect;
(4), by the upper end of air bag 2 be connected with top slide 6, lower end is connected with expansion link 7 lower end, then expansion link 7 is become contraction state, makes air bag 2 be contracted in top, target tunnel 16;
(5), by shock wave inductor 1 be arranged in the region that gas is easily blasted, and be connected with aerating device 3, water injector 4 respectively, and water injector 4 is connected with the sparge pipe 13 in lower tracks 12 with upper track 11 respectively;
(6), when shock wave inductor 1 senses the shock wave that gas explosion produces, signal is transferred on aerating device 3 and water injector 4 by shock wave inductor 1 respectively, air bag 2 fast aeration is expanded, expansion link 7 is driven to be connected with bottom slide 8, by the shutoff completely of whole target tunnel 16, make water injector 4 work simultaneously, sprayed water to air bag 2 front end by the shower nozzle 15 of sparge pipe 13 front end, form water smoke, the high-temperature gas preventing gas explosion from producing produces air bag 2 and destroys, in target tunnel 16, several air bags 2 are by target tunnel 16 shutoff, thus complete whole shutoff process, if miner runs into shock wave in actual production process, hand switch 17 can be opened, air bag 2 is normally worked.
(7), regularly said apparatus detected and keep in repair.
Lower tracks 12 is laid along ground, target tunnel 16, upper track 11 is arranged on target tunnel 16 top inner wall, shock wave inductor 1 is arranged on the Coal Seam Prone To Outburst place in target tunnel 16, when shock wave inductor 1 senses the shock wave that gas explosion produces, by signal transmission to the aerating device 3 in air bag 2, simultaneously signal transmission to water injector 4, water injector 4 is supplied water to sparge pipe 13.
The igniter of aerating device 3 lights powder squib, sodium nitride oxidizer is burnt and generates nitrogen stream, discharge compressed nitrogen simultaneously, make air bag 2 rapid expanding.Air bag 2 expands downwards, expansion link 7 is driven to extend, until expansion link 7 lower end is inserted in the groove of bottom slide 8, now air bag 2 is by target tunnel 16 cross section shutoff, two, left and right top slide 6 connects as one by horizon bar 9, guarantee that top slide 6 can not deflection in sliding process, top slide 6 and bottom slide 8 connect as one by expansion link 7, under the effect of shock wave, due to upper track 11 and lower tracks 12 rough surface, top slide 6 and bottom slide 8 slide in upper track 11 and lower tracks 12 and produce respectively can in friction, the energy of shock wave is declined.
The internal layer of air bag 2 is made up of the nylon fiber of interior coat with rubber, and the skin of air bag 2 is made up of high strength ceramics fiber, larger shock wave can be born.
Safety valve 5 is located on air bag 2, can carry out certain exhaust, prevent air bag 2 from exploding when air bag 2 pressurized is excessive.
Top slide 6 and bottom slide 8 lay respectively in upper track 11 and lower tracks 12, can also produce energy in friction, the energy of shock wave is declined in the effect lower slider of shock wave.
Be provided with sparge pipe 13 in upper track 11 and lower tracks 12, the water of the shower nozzle generation of sparge pipe 13 front end is sprayed onto in target tunnel 16 and forms water smoke, and the high-temperature gas preventing gas explosion from producing produces air bag 2 and destroys.
Spring (upper springs 10 and lower springs 14) produces elastic potential energy along upper track and bottom slide 8 along shrinking in bottom slide 8 sliding process at top slide 6, and the energy of shock wave is declined.
Above embodiment is the unrestricted technical scheme of the present invention in order to explanation only, although with reference to above-described embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: still can modify to the present invention or equivalent replacement, and not departing from any modification or partial replacement of the spirit and scope of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (7)
1. coal mine gas from explosion quick blocking system, it is characterized in that: comprise shock wave inductor (1), upper track (11), lower tracks (12) and water injector (4), upper track (11) and lower tracks (12) respectively level are provided with two and upper and lower corresponding layout, upper track (11) and lower tracks (12) inside are equipped with the sparge pipe (13) be connected with water injector (4), every root upper track (11) slidably connects at least three top slides (6), the upper springs (10) be set in upper track (11) is provided with between adjacent two top slides (6), every root lower tracks (12) slidably connects at least three bottom slides (8), the lower springs (14) be set in lower tracks (12) is provided with between adjacent two bottom slides (8), the length of upper springs (10) and lower springs (14) is equal, top slide (6) and bottom slide (8) are corresponding up and down all one by one to be arranged, each top slide (6) soffit is all vertically provided with a corresponding expansion link (7) vertical with bottom slide (8), bottom slide (8) upper surface is provided with the groove inserted for expansion link (7) lower end, an air bag (2) is all connected with between two top slides (6) of two upper track (11) upper left and right correspondences, air bag (2) is made up of inside and outside double-layer structure, expansion link (7) lower end is fixedly connected with air bag (2) bottom, aerating device (3) is equipped with in each air bag (2), shock wave inductor (1) is located at and is connected with aerating device (3) and water injector (4) respectively by data signal line.
2. coal mine gas from explosion quick blocking system according to claim 1, it is characterized in that: the internal layer of described air bag (2) is made up of the nylon fiber of interior coat with rubber, the skin of air bag (2) is made up of high strength ceramics fiber, each air bag (2) is equipped with a safety valve (5).
3. coal mine gas from explosion quick blocking system according to claim 1 and 2, it is characterized in that: the rough surface of described upper track (11) and lower tracks (12), top slide (6) has force of sliding friction when upper track (11) is slided, and bottom slide (8) has force of sliding friction when lower tracks (12) is slided.
4. coal mine gas from explosion quick blocking system according to claim 1 and 2, is characterized in that: described aerating device (3) comprises igniter, powder squib, sodium nitride oxidizer and compressed nitrogen.
5. coal mine gas from explosion quick blocking system according to claim 1 and 2, it is characterized in that: the length direction of described upper track (11) and lower tracks (12) is fore-and-aft direction, sparge pipe (13) front opening is also provided with shower nozzle (15), four sparge pipe (13) front end bendings all to the inside; Shock wave inductor (1) is located at the front of sparge pipe (13).
6. coal mine gas from explosion quick blocking system according to claim 1 and 2, is characterized in that: connected by horizon bar (9) between two top slides (6) of two upper track (11) upper left and right correspondences.
7. coal mine gas from explosion quick blocking system according to claim 1 and 2, it is characterized in that: the hand switch (17) also comprising the rear being located at sparge pipe (13), hand switch (17) is connected with aerating device (3) and water injector (4) respectively by signal control line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410569514.9A CN104454002B (en) | 2014-10-23 | 2014-10-23 | Coal mine gas from explosion quick blocking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410569514.9A CN104454002B (en) | 2014-10-23 | 2014-10-23 | Coal mine gas from explosion quick blocking system |
Publications (2)
| Publication Number | Publication Date |
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| CN104454002A true CN104454002A (en) | 2015-03-25 |
| CN104454002B CN104454002B (en) | 2016-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410569514.9A Expired - Fee Related CN104454002B (en) | 2014-10-23 | 2014-10-23 | Coal mine gas from explosion quick blocking system |
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| CN (1) | CN104454002B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806287A (en) * | 2015-04-15 | 2015-07-29 | 安徽理工大学 | Emergency safety device for isolating mine disaster |
| CN104847409A (en) * | 2015-04-09 | 2015-08-19 | 山西新思备科技股份有限公司 | Gas-producing type airbag explosion suppression device for coal mine tunnel |
| GB2530839A (en) * | 2014-06-10 | 2016-04-06 | Secr Defence | A tunnel plug |
| CN106555610A (en) * | 2016-11-17 | 2017-04-05 | 北京科技大学 | A kind of driving face in coal mine Gas Outburst baffle system |
| CN108245807A (en) * | 2018-01-20 | 2018-07-06 | 长安大学 | A kind of asphyxia formula moves tunnel fire extinguishing device |
| CN109184788A (en) * | 2018-11-14 | 2019-01-11 | 中煤科工集团重庆研究院有限公司 | Telescopic folding type working face corner gas plugging device |
| CN109765098A (en) * | 2019-01-15 | 2019-05-17 | 哈尔滨经纬复合新材料工程有限公司 | A kind of flexible high pressure utricule system application of uniform stress |
| CN112253244A (en) * | 2020-10-21 | 2021-01-22 | 济宁学院 | Automatic buffering system for tunnel collapse impact air waves |
| CN112253241A (en) * | 2020-10-21 | 2021-01-22 | 济宁学院 | Mining goaf collapse impact air wave automatic buffering protection system |
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| GB2530839B (en) * | 2014-06-10 | 2017-02-08 | Secr Defence | A tunnel plug |
| CN104847409A (en) * | 2015-04-09 | 2015-08-19 | 山西新思备科技股份有限公司 | Gas-producing type airbag explosion suppression device for coal mine tunnel |
| CN104806287A (en) * | 2015-04-15 | 2015-07-29 | 安徽理工大学 | Emergency safety device for isolating mine disaster |
| CN106555610A (en) * | 2016-11-17 | 2017-04-05 | 北京科技大学 | A kind of driving face in coal mine Gas Outburst baffle system |
| CN108245807A (en) * | 2018-01-20 | 2018-07-06 | 长安大学 | A kind of asphyxia formula moves tunnel fire extinguishing device |
| CN109184788A (en) * | 2018-11-14 | 2019-01-11 | 中煤科工集团重庆研究院有限公司 | Telescopic folding type working face corner gas plugging device |
| CN109765098A (en) * | 2019-01-15 | 2019-05-17 | 哈尔滨经纬复合新材料工程有限公司 | A kind of flexible high pressure utricule system application of uniform stress |
| CN112253244A (en) * | 2020-10-21 | 2021-01-22 | 济宁学院 | Automatic buffering system for tunnel collapse impact air waves |
| CN112253241A (en) * | 2020-10-21 | 2021-01-22 | 济宁学院 | Mining goaf collapse impact air wave automatic buffering protection system |
| CN112253244B (en) * | 2020-10-21 | 2022-09-27 | 济宁学院 | Automatic buffering system for tunnel collapse impact air wave |
| CN113374123A (en) * | 2021-05-31 | 2021-09-10 | 唐山师范学院 | High-efficient isolating device is used in interior design construction |
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