CN201851144U - Coal extraction face blowback type quick explosion suppression device - Google Patents
Coal extraction face blowback type quick explosion suppression device Download PDFInfo
- Publication number
- CN201851144U CN201851144U CN2010206177110U CN201020617711U CN201851144U CN 201851144 U CN201851144 U CN 201851144U CN 2010206177110 U CN2010206177110 U CN 2010206177110U CN 201020617711 U CN201020617711 U CN 201020617711U CN 201851144 U CN201851144 U CN 201851144U
- Authority
- CN
- China
- Prior art keywords
- explosion arrestment
- explosion
- coal mining
- working surface
- channel
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Epoxy Compounds (AREA)
Abstract
A coal extraction face blowback type quick explosion suppression device relates to a blowback type quick explosion suppression device, which solves the problem that shock wave and flame generated in explosion cannot be stopped effectively in a coal extraction face. The blowback type quick explosion suppression device is provided with an explosion suppression door and two explosion suppression windows, and before an explosion, closing of the explosion suppression door and the explosion suppression windows is controlled by a control system so as to achieve the effect of explosion suppression. The blowback type quick explosion suppression device is suitable for a roadway of a coal mine.
Description
Technical field
The utility model relates to the quick device of blast prevention of a kind of gas backwash formula.
Background technology
Gas and dust explosion is the major safety problems that the coal production industry needs to be resolved hurrily, and carries out the research work of its prevention and control very necessary.Since " six or five ", serial flame proof, explosion suppression device that China succeeds in developing and uses in coal mining enterprise according to the difference of datonation-inhibition mode, can be divided into the datonation-inhibition and self-action datonation-inhibition two big classes of passive type.
The passive type that coal mining enterprise adopts intercepts quick-fried technology and mainly contains flame proof tank, water bag and stone-dust barrier etc.Its principle is to utilize the energy of blast bow wave self in the Explosion suppressant that sets in advance in the detonation propagation passage, form the datonation-inhibition band of certain section, put out the propagating flame that arrives soon after, bow wave energy simultaneously dissipates, prevent to form excess pressure, reach datonation-inhibition purpose.A large amount of crash analyses show that these measures can not effectively play a role when accident takes place.For example: the moisture of tank evaporates easily, lacks, and need often wash by water, change water, has increased workman's workload.Especially mine dust is easily sneaked in the exploiting field big at air quantity, that temperature is high in the water, cause fire extinguishing water smoke can not effectively cut off the propagation of explosive flame because of water shortage.Stope drift active workings water bag canopy should adopt the mode that breaks off relations and hang by design code, fastens on beam with iron wire but the water bag canopy in the practical application is many, makes that flame proof facility atomizing when action of this passive form is insufficient, greatly reduces the flame proof effect.In addition, if it is low excessively to intercept the operating pressure of quick-fried device, be that sensitivity is too high, then explosive flame arrives, and distance intercepts quick-fried device at a distance, the low surge of forerunner's compression wave can make the quick-fried device of obstruct begin action, before arriving, flame just discharged inhibitor, like this when flame arrives the quick-fried setting position of obstruct, because inhibitor is discharged in advance, and, only be left to be suspended in the lower inhibitor of concentration in the space because of the action of gravity major part has sunk on the base plate in tunnel.May exceed explosion limit though contain the methane gas of inhibitor, but because explosive flame has higher cohesive strength and globality preferably, flame still may be under the promotion of huge explosion product pressure, pass this zone and ignite the gas mist of front and continue to propagate forward, intercept quick-fried device and do not have corresponding effect.If intercept the pressure that the operating pressure of quick-fried device is higher than forerunner's compression wave, or the action that intercepts quick-fried device has surpassed flame time delay and has arrived the required time of device.The inhibitor of its release will drop to the flame zone rear portion, even drops on after the flame zone, and the flame front portion that then is not suppressed the agent influence will continue to propagate forward, intercepts quick-fried device and loses the quick-fried effect that intercepts.
The datonation-inhibition know-why of self-action is in time to survey detonator signal by responsive original papers such as sensors, and by the action of control module rapid triggering Explosion suppressant flusher, spray Explosion suppressant in modes such as high pressure injection or blast sprinklings, stamp out the flames or the attenuate blast bow wave, finish datonation-inhibition.Yet high speed communication process for the detonation formula, if still adopt the datonation-inhibition technology of above-mentioned self-action, then require to have higher valve of sensitivity and more effective Explosion suppressant, set up a series of Explosion suppressant injection apparatus along the line in the tunnel that gas explosion easily takes place, communicate with the tunnel by electronically controlled high sensitivity valve.In case occur blast somewhere, the valve of its upstream and downstream is opened immediately automatically, Explosion suppressant sprays into the tunnel, suppresses spreading of blast.In present stage, even technical can meeting the demands, its expensive cost also can make most applying units hang back, and can not realize especially under coal mining enterprise's existence conditions.The datonation-inhibition technology of self-action exists difficult accurate control flame ripple and the shock wave problem time of advent equally, intercepts quick-fried device and plays that to intercept quick-fried action condition limited.
This shows, existing datonation-inhibition facility of passive type and the datonation-inhibition facility of self-action are owing to be subjected to the restriction of subsurface environment, various unexpected problems have appearred, especially extremely undesirable to weak blast (pressure is low) and the stronger datonation-inhibition effect of blast (pressure height), influenced the reliability of gas explosion control technology.In addition, datonation-inhibition facility of existing passive type and self-action be datonation-inhibition to be disposable explosion suppression device, does not possess repeat function, to the subsequent explosion after the well shooting or repeatedly explosion accident lose datonation-inhibition effect.
The utility model content
The utility model is can't effectively stop impact generated by explosion to involve the problem of flame in the existing channel of coal mining working surface in order to solve, thereby provides a kind of channel of coal mining working surface gas backwash formula quick device of blast prevention.
The quick device of blast prevention of channel of coal mining working surface gas backwash formula, it comprises support frame, explosion arrestment door, explosion arrestment plate, two fan explosion arrestment windows, crossbeam, perpendicular overarm, electromagnet armature, spring and control system, support frame is divided into upper and lower two parts by crossbeam, the limit, left side of explosion arrestment plate is fixed on the limit, left side of support frame lower part, the right edge of the right edge of described explosion arrestment plate, crossbeam and support frame forms doorframe, and explosion arrestment door and described doorframe are hinged; The top of perpendicular overarm and the middle part of lower edge, support frame top flexibly connect, and the other end of perpendicular overarm contacts with the upper surface of crossbeam; The top of support frame is divided into left and right two parts by perpendicular overarm, and described two fan explosion arrestment windows are hinged on the and arranged on left and right sides of perpendicular overarm respectively; And its articulated elements is provided with electromagnet armature and spring; Control system comprises control module, ultraviolet inductor and gas generation apparatus, the induced signal output of ultraviolet ray inductor is connected with the induced signal input of control module, and the control signal output of control module is connected with the control signal input of gas generation apparatus; Described gas generation apparatus is arranged on the explosion arrestment door and opens the face place.
Beneficial effect: when the utility model took place in blast, explosion arrestment door and explosion arrestment window were closed simultaneously, and the blast that can stop blast to produce effectively involves flame.And thereby the different parts that a plurality of devices of blast prevention can be separately positioned on the colliery underworkings realizes the associating explosion arrestment, intercepts quick-fried better effects if.The closed action that the utlity model has explosion arrestment door and explosion arrestment window is quick, intercepts the strong advantage of quick-fried performance.
Description of drawings
Fig. 1 is a structural representation of the present invention; Fig. 2 is the principle schematic of control section of the present invention.
The specific embodiment
The specific embodiment one, this specific embodiment is described in conjunction with Fig. 1 and Fig. 2, the quick device of blast prevention of channel of coal mining working surface gas backwash formula, it comprises support frame 1, explosion arrestment door 2, explosion arrestment plate 3, two fan explosion arrestment windows 4, crossbeam 5, perpendicular overarm 6, electromagnet armature 14, spring 15 and control system, support frame 1 is divided into upper and lower two parts by crossbeam 5, the limit, left side of explosion arrestment plate 3 is fixed on the limit, left side of support frame 1 lower part, the right edge of the right edge of described explosion arrestment plate 3, crossbeam 5 and support frame 1 forms doorframe, and explosion arrestment door 2 is hinged with described doorframe; The top of perpendicular overarm 6 and the middle part of lower edge, support frame 1 top flexibly connect, and the other end of perpendicular overarm 6 contacts with the upper surface of crossbeam 5; The top of support frame 1 is divided into left and right two parts by perpendicular overarm 6, and described two fan explosion arrestment windows 4 are hinged on the and arranged on left and right sides of perpendicular overarm 6 respectively; And its articulated elements is provided with electromagnet armature 14 and spring 15; Control system comprises control module 11, ultraviolet inductor 12 and gas generation apparatus 13, the induced signal output of ultraviolet ray inductor 12 is connected with the induced signal input of control module 11, and the control signal output of control module 11 is connected with the control signal input of gas generation apparatus 13; Described gas generation apparatus 13 is fixed on explosion arrestment door 2 and opens the face place, can be arranged on explosion arrestment door 2 and open on the wall of face side.
Present embodiment is fixed in the tunnel under the coal mine by a plurality of fixtures 16 in use.
All very desirable in the present embodiment to weak blast (pressure is low) and the stronger datonation-inhibition effect of blast (pressure height), improved the reliability of gas explosion control technology.And the utility model after to well shooting subsequent explosion or repeatedly explosion accident still have datonation-inhibition effect.
The difference of the specific embodiment two, this specific embodiment and the quick device of blast prevention of the specific embodiment one described channel of coal mining working surface gas backwash formula is, explosion arrestment door 2 is made up of foamed ceramics basic unit 21 and iron wire stratum reticulare 22, and described iron wire stratum reticulare 22 covers and is fixed on inside and outside two faces of foamed ceramics basic unit 21.
In the present embodiment, explosion arrestment plate 3 is identical with the material of explosion arrestment door 2.
Coal mine gas, coal dust intercept harm and the influence that the effect of quick-fried device is flame front high temperature sintering, positive pressure of shock wave destruction and roadway toxic and harmful when eliminating gas, coal-dust explosion automatically in the present embodiment, should possess repeat function and usability simultaneously, can be to subsequent explosion after the well shooting or the repeatedly quick-fried effect of blast performance obstruct.In view of foamed ceramics has flame quenching effect and shock wave consumption, therefore utilize its characteristics to intercept gas explosion flame and shock Wave.Explosive flame is suppressed in the blast regional area, avoids greater disaster.
The difference of the specific embodiment three, this specific embodiment and the specific embodiment one or the quick device of blast prevention of two described channel of coal mining working surface gas backwash formulas is, it also comprises N impact liner 7, a described N impact liner 7 distributes and is fixed on the right edge of explosion arrestment plate 3, and described N is a positive integer.
The difference of the specific embodiment four, this specific embodiment and the quick device of blast prevention of the specific embodiment three described channel of coal mining working surface gas backwash formulas is, but it also comprises the swing motor 19 of swing, but the swinging axle of the swing motor 19 of described swing contacts with perpendicular overarm 6; But the control signal input of the swing motor 19 of described swing is connected with the control signal output of control module 11.
But the perpendicular overarm of the swing motor 19 brakings knee-action of the swing described in the present embodiment makes the top of support frame 1 realize full open, makes things convenient for the transportation of main equipment.
The difference of the specific embodiment five, this specific embodiment and the quick device of blast prevention of the specific embodiment one, two or four described channel of coal mining working surface gas backwash formulas is, it also comprises limit switch 20, described limit switch 20 is arranged on the unlatching path of explosion arrestment door 2, the limit signal output of described limit switch 20 and the limit signal input of control module 11.
The difference of the specific embodiment six, this specific embodiment and the quick device of blast prevention of the specific embodiment five described channel of coal mining working surface gas backwash formulas is, it also comprises two locking latches, have two through holes on the described crossbeam 5, described two through holes lay respectively at the both sides of perpendicular overarm 6, and the end of two locking latches 18 passes the lower edge that two through holes are locked at crossbeam 5 two explosion arrestment windows 4 respectively.Crossbeam 5 is for can split into two-part structure from the centre.
In the present embodiment, crossbeam 5 can also be provided with control button, is used to control the moving or closed condition of unlatching of explosion arrestment window.
In the present embodiment, when the transportation large-scale parts, the locking latch 18 on the crossbeam 5 is opened, spacing crossbeam 5 is taken apart from the centre, and launched to place wall one side, described two locking latches 18 can tie up on the stay cord, by the stay cord pulling, two locking latches 18 are come off.Swing motor 19 control vertical beams 6 are moved upward, the top of support frame 1 is opened fully, guarantee that large-scale parts passes through.
The difference of the specific embodiment seven, this specific embodiment and the quick device of blast prevention of the specific embodiment one, two, four or six described channel of coal mining working surface gas backwash formulas is, it also comprises scalable sealing device 17, described scalable sealing device 17 be arranged on support frame 1 on.
Present embodiment is used in the space of seal frame 1 with the tunnel engagement edge, in order to avoid explosion time has flame to pass through.
The difference of the specific embodiment eight, this specific embodiment and the quick device of blast prevention of the specific embodiment seven described channel of coal mining working surface gas backwash formulas is, has air duct mouth 8 in the explosion arrestment window 4, is used for passing through of air duct.
The difference of the specific embodiment nine, this specific embodiment and the quick device of blast prevention of the specific embodiment one, two, four, six or eight described channel of coal mining working surface gas backwash formulas is, has M pipeline on the explosion arrestment plate 3 by hole 9, and described M is a positive integer.
In the present embodiment, offer a plurality of pipelines as required by hole 9, be used for the passing through of pipeline in the tunnel.The difference of the specific embodiment ten, this specific embodiment and the quick device of blast prevention of the specific embodiment nine described channel of coal mining working surface gas backwash formulas is, has on the explosion arrestment plate 3 and cuts port 10.
Claims (10)
1. the quick device of blast prevention of channel of coal mining working surface gas backwash formula, it is characterized in that: it comprises support frame (1), explosion arrestment door (2), explosion arrestment plate (3), two fan explosion arrestment windows (4), crossbeam (5), perpendicular overarm (6), electromagnet armature (14), spring (15) and control system, support frame (1) is divided into by crossbeam (5), following two parts, the limit, left side of explosion arrestment plate (3) is fixed on the limit, left side of support frame (1) lower part, the right edge of described explosion arrestment plate (3), the right edge of crossbeam (5) and support frame (1) forms doorframe, and explosion arrestment door (2) is hinged with described doorframe; The top of perpendicular overarm (6) and the middle part of support frame (1) lower edge, top flexibly connect, and the other end of perpendicular overarm (6) contacts with the upper surface of crossbeam (5); The top of support frame (1) is divided into left and right two parts by perpendicular overarm (6), and described two fan explosion arrestment windows (4) are hinged on the and arranged on left and right sides of perpendicular overarm (6) respectively; And its articulated elements is provided with electromagnet armature (14) and spring (15); Control system comprises control module (11), ultraviolet inductor (12) and gas generation apparatus (13), the induced signal output of ultraviolet ray inductor (12) is connected with the induced signal input of control module (11), and the control signal output of control module (11) is connected with the control signal input of gas generation apparatus (13); Described gas generation apparatus (13) is arranged on explosion arrestment door (2) and opens the face place.
2. the quick device of blast prevention of channel of coal mining working surface gas backwash formula according to claim 1, it is characterized in that explosion arrestment door (2) is made up of foamed ceramics basic unit (21) and iron wire stratum reticulare (22), described iron wire stratum reticulare (22) covers and is fixed on inside and outside two faces of foamed ceramics basic unit (21).
3. the quick device of blast prevention of channel of coal mining working surface gas backwash formula according to claim 1 and 2, it is characterized in that it also comprises N impact liner (7), a described N impact liner (7) distributes and is fixed on the right edge of explosion arrestment plate (3), and described N is a positive integer.
4. the quick device of blast prevention of channel of coal mining working surface gas backwash formula according to claim 3, but it is characterized in that it also comprises the swing motor (19) of swing, but the swinging axle of the swing motor (19) of described swing contacts with perpendicular overarm (6); But the control signal input of the swing motor (19) of described swing is connected with the control signal output of control module (11).
5. according to claim 1, the quick device of blast prevention of 2 or 4 described channel of coal mining working surface gas backwash formulas, it is characterized in that it also comprises limit switch (20), described limit switch (20) is arranged on the unlatching path of explosion arrestment door (2), the limit signal input of the limit signal output of described limit switch (20) and control module (11).
6. the quick device of blast prevention of channel of coal mining working surface gas backwash formula according to claim 5, it is characterized in that it also comprises two locking latches, have two through holes on the described crossbeam (5), described two through holes lay respectively at the both sides of perpendicular overarm (6), and the end of two locking latches passes the lower edge that two through holes are locked at crossbeam (5) two explosion arrestment windows (4) respectively.
7. according to claim 1,2, the quick device of blast prevention of 4 or 6 described channel of coal mining working surface gas backwash formulas, it is characterized in that it also comprises scalable sealing device (17), described scalable sealing device (17) is arranged on the support frame (1).
8. the quick device of blast prevention of channel of coal mining working surface gas backwash formula according to claim 7 has air duct mouth (8) on it is characterized in that in the explosion arrestment window (4).
9. according to claim 1,2,4, the quick device of blast prevention of 6 or 8 described channel of coal mining working surface gas backwash formulas, it is characterized in that having on the explosion arrestment plate (3) M pipeline by hole (9), described M is a positive integer.
10. the quick device of blast prevention of channel of coal mining working surface gas backwash formula according to claim 9 is characterized in that having on the explosion arrestment plate (3) and cuts port (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206177110U CN201851144U (en) | 2010-11-22 | 2010-11-22 | Coal extraction face blowback type quick explosion suppression device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206177110U CN201851144U (en) | 2010-11-22 | 2010-11-22 | Coal extraction face blowback type quick explosion suppression device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201851144U true CN201851144U (en) | 2011-06-01 |
Family
ID=44093543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206177110U Expired - Lifetime CN201851144U (en) | 2010-11-22 | 2010-11-22 | Coal extraction face blowback type quick explosion suppression device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201851144U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102061929A (en) * | 2010-11-22 | 2011-05-18 | 黑龙江科技学院 | Blowback fast explosion suppression device for coal mining working face |
| CN104265366A (en) * | 2014-09-17 | 2015-01-07 | 扬州市江隆矿业设备有限公司 | Pressure-relief type automatic multi-buffered reset explosion door |
-
2010
- 2010-11-22 CN CN2010206177110U patent/CN201851144U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102061929A (en) * | 2010-11-22 | 2011-05-18 | 黑龙江科技学院 | Blowback fast explosion suppression device for coal mining working face |
| CN102061929B (en) * | 2010-11-22 | 2012-07-25 | 哈尔滨工业大学 | Blowback fast explosion suppression device for coal mining working face |
| CN104265366A (en) * | 2014-09-17 | 2015-01-07 | 扬州市江隆矿业设备有限公司 | Pressure-relief type automatic multi-buffered reset explosion door |
| CN104265366B (en) * | 2014-09-17 | 2016-05-25 | 扬州市江隆矿业设备有限公司 | A kind of pressure release type repeatedly cushions reset anti-explosion door automatically |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102061929B (en) | Blowback fast explosion suppression device for coal mining working face | |
| Cheng | Explosions in underground coal mines | |
| CN101581188A (en) | Through shockproof wave door | |
| CN101713297B (en) | Method and equipment for suppressing gas from multiple continuous explosions | |
| CN202707135U (en) | Quick gas generation type explosion-suppressing gasbag device | |
| Song et al. | Underground mine gas explosion accidents and prevention techniques–an overview | |
| CN201851144U (en) | Coal extraction face blowback type quick explosion suppression device | |
| CN103470295A (en) | Mine extinguishment and explosion suppression system | |
| CN101015729B (en) | Method and appts. for suppressing combustible substance explosion and diffusion | |
| CN204082202U (en) | foam dust-removing device | |
| CN203515658U (en) | Automatic closed remote-control fire protection device for coal mining area | |
| CN104389629B (en) | Gas and solid jet active flame-retarding explosion-suppressing unit | |
| CN201363065Y (en) | Anti-clip double-plank disaster relief door with drawing steel wire rope | |
| CN106593530B (en) | A kind of soft decompression explosion-proof door based on non-newtonian fluid | |
| CN200992927Y (en) | General pneumatic control rescuing door | |
| CN206071637U (en) | Dual back-fire relief explosion venting device | |
| CN203347827U (en) | Explosive-proof heavy hammer opening device | |
| CN202560295U (en) | Mining pneumatic explosive-suppression water curtain | |
| CN204572066U (en) | A kind of mining automatic closedown anti-explosion safety door | |
| CN1947817B (en) | Method for explosion suppression and fire-extinguishing during catching fire in working face of high gas coal mine | |
| CN103785123A (en) | Explosion energy-absorbing fire-extinguishing device | |
| CN206617192U (en) | A kind of soft decompression explosion-proof door based on non-newtonian fluid | |
| CN200992928Y (en) | Hanging-bridge type pneumatic control rescuing door | |
| CN210034588U (en) | Mine tunnel air door relief valve | |
| CN202325623U (en) | Mining automatic explosion-proof rock dust barrier device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110601 Effective date of abandoning: 20120725 |