CN205823334U - Automatically fore shaft explosion-proof relief closed unit - Google Patents
Automatically fore shaft explosion-proof relief closed unit Download PDFInfo
- Publication number
- CN205823334U CN205823334U CN201620782784.2U CN201620782784U CN205823334U CN 205823334 U CN205823334 U CN 205823334U CN 201620782784 U CN201620782784 U CN 201620782784U CN 205823334 U CN205823334 U CN 205823334U
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- CN
- China
- Prior art keywords
- metal tube
- explosion
- fixed pulley
- fore shaft
- tubaeform
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Abstract
The utility model discloses a kind of fore shaft explosion-proof relief closed unit automatically, including metal tube, opening elbow, explosion proof door, tubaeform metal tube, three layers of anti-backfire net, the first fixed pulley, the second fixed pulley, pull rope, lightweight bucket and water valve switch；Metal tube connects tubaeform metal tube and opening elbow, anti-backfire net is contained on tubaeform metal tube, opening elbow connects explosion proof door, first fixed pulley and the second fixed pulley are located on back, pull rope connects explosion proof door, pull rope connects lightweight bucket through the first fixed pulley and the second fixed pulley, and water valve switch is located on lightweight bucket.This utility model uses block combiner mounting means, facilitate underground transportation, install, dismantle, device is firm, durable, good airproof performance, it it is a kind of reusable automatic fore shaft explosion-proof relief closed unit, it is applicable to underground coal mine close mining roadway, fire sealing tunnel, be closed with the region that gas explosion is dangerous, it is more suitable for when rescue, the flame range having gas explosion dangerous is closed.
Description
Technical field
This utility model relates to a kind of Mine Safety Appliances manufacturing technology, particularly relates to a kind of fore shaft explosion-proof relief automatically close
Close device.
Background technology
The closing in underground coal mine methane accumulation region, close after the closing in the progressively region of accumulated methane, particularly gas
The closing in mine fire region, the shortcoming of current enclosure method is, in closed process, along with the progress of sealing work, ventilates
Section is more and more less, more and more less by air quantity, and discharge gas amount is fewer and feweri, and enclosed area gas density can be more and more higher, more
Coming the most dangerous, particularly close during wall builds up last fore shaft, gas density can quickly raise, it is most likely that rises to boundary of exploding
Limit causes blast.Further, present last fore shaft work is all operated at the scene by rescue personnel, dangerous high, the most repeatedly sends out
Raw multiperson accident.
Utility model content
The purpose of this utility model: a kind of fore shaft explosion-proof relief closed unit automatically is provided, uses block combiner mounting means,
Facilitating underground transportation, install, dismantle, device is firm, durable, good airproof performance, is that a kind of reusable automatic fore shaft is explosion-proof
Pressure relief enclosed device, it is adaptable to underground coal mine is closed mining roadway, fire sealing tunnel, is closed with the district that gas explosion is dangerous
Territory, is more suitable for when rescue, closes the flame range having gas explosion dangerous.
To achieve these goals, the technical solution of the utility model is:
A kind of fore shaft explosion-proof relief closed unit automatically, including metal tube, opening elbow, explosion proof door, tubaeform metal tube, three
Layer anti-backfire net, the first fixed pulley, the second fixed pulley, pull rope, lightweight bucket and water valve switch；Described metal tube is water
Equality footpath tubular structure, the osculum end of described tubaeform metal tube is coaxially adaptive with one end of described metal tube to be connected, institute
The three layers of anti-backfire net stated are arranged on the big opening end of the tubaeform metal tube of described tubaeform metal tube；Described opening elbow
Being 45 ° of bend pipe structures, one end of described opening elbow is coaxially adaptive with the other end of described metal tube to be connected, and described opens
The other end of mouthful elbow be arranged on close outside wall and with described explosion proof door chain connection, described hinge is positioned at described opening
The surface of elbow；The first described fixed pulley and the second fixed pulley are spaced 5m the most in the same direction and are fixed on back, described
The first fixed pulley be positioned at the surface of described explosion proof door；One end of described pull rope is fixing with described explosion proof door even
Connecing, the other end of described pull rope is fixed with described lightweight bucket through the first described fixed pulley and the second fixed pulley respectively
Connecting, described water valve switch is arranged on the bottom of described lightweight bucket.
Above-mentioned automatic fore shaft explosion-proof relief closed unit, wherein, one end of described metal tube is provided with ring flange, described
The osculum end of tubaeform metal tube is provided with ring flange and fire-retardant sealing gasket, and described tubaeform metal tube is by described ring flange
And one end of fire-retardant sealing gasket and described metal tube is tightly connected.
Above-mentioned automatic fore shaft explosion-proof relief closed unit, wherein, the other end of described metal tube is provided with ring flange, described
One end of opening elbow be provided with ring flange and fire-retardant sealing gasket, described opening elbow is by described ring flange and fire-retardant close
Packing is tightly connected with the other end of described metal tube.
Above-mentioned automatic fore shaft explosion-proof relief closed unit, wherein, described metal tube is by one or more metallic conduit group
Dress forms.
Above-mentioned automatic fore shaft explosion-proof relief closed unit, wherein, described opening elbow is connected with described explosion proof door
One end is provided with closedown back-moving spring.
This utility model makes to close wall in closed process, can maintain safe ventilation basal area, make closed area lead to
Wind is normal, will not form methane accumulation；Close wall after building completes, start automatic fore shaft program, first personnel can be removed safety
Area, then realize automatic fore shaft, ensure the safety of rescue personnel；Closing wall disaster area after fore shaft and explosion time occurs, shock wave passes through
Three layers of anti-backfire net cut off flame, automatically wash explosion proof door open and carry out pressure release, are substantially reduced the impact energy closing wall, thus ensure
Be provided with automatic fore shaft explosion-proof relief closed unit closes wall because pressure release is without being destroyed by blast；After explosion wave disappears,
Explosion proof door automatically resets, again automatic fore shaft, keeps the closed performance again closing wall；There is automatic fore shaft and explosion-proof relief merit
Can, it is adaptable to the tunnel having the flame range of explosion danger, gas tunnel etc. to have explosion hazard area is closed.
Accompanying drawing explanation
Fig. 1 is the scheme of installation of this utility model automatic fore shaft explosion-proof relief closed unit.
Detailed description of the invention
Embodiment of the present utility model is further illustrated below in conjunction with accompanying drawing.
Referring to shown in accompanying drawing 1, a kind of fore shaft explosion-proof relief closed unit automatically, including metal tube 1, opening elbow 2, explosion-proof
Door 3,4, three layers of anti-backfire net the 5, first fixed pulley 6, second fixed pulley 7 of tubaeform metal tube, pull rope 8, lightweight bucket 9 and water
Door trip 10；Described metal tube 1 is the isometrical tubular structure of level, and the osculum end of described tubaeform metal tube 4 is with described
One end of metal tube 1 is coaxially adaptive to be connected, and three layers of described anti-backfire net 5 are arranged on the loudspeaker of described tubaeform metal tube 4
The big opening end of shape metal tube 4；Described opening elbow 2 is 45 ° of bend pipe structures, and one end of described opening elbow 2 is with described
The other end of metal tube 1 is coaxially adaptive to be connected, and the other end of described opening elbow 2 is arranged on and closes outside wall and prevent with described
Quick-fried door 3 chain connection, described hinge is positioned at the surface of described opening elbow 2；The first described fixed pulley 6 and second
Fixed pulley 7 is spaced 5m the most in the same direction and is fixed on back, and the first described fixed pulley 6 is just being positioned at described explosion proof door 3
Top；One end of described pull rope 8 is fixing with described explosion proof door 3 to be connected, and the other end of described pull rope 8 is respectively through institute
The first fixed pulley 6 stated and the second fixed pulley 7 are fixed with described lightweight bucket 9 and are connected, and described water valve switch 10 is arranged on
The bottom of described lightweight bucket 9.
One end of described metal tube 1 is provided with ring flange, the osculum end of described tubaeform metal tube 4 be provided with ring flange and
Fire-retardant sealing gasket, described tubaeform metal tube 4 is by described ring flange and fire-retardant sealing gasket and the one of described metal tube 1
End is tightly connected.
The other end of described metal tube 1 is provided with ring flange, and one end of described opening elbow 2 is provided with ring flange and fire-retardant
Sealing gasket, described opening elbow 2 is sealed by the other end of described ring flange and fire-retardant sealing gasket and described metal tube 1
Connect.
Described metal tube 1 is assembled by one or more metallic conduit, during use metal tube 1 may pass through close wall build exist
Wherein install, close wall both sides and expose ring flange installation length.
One end that described opening elbow 2 is connected with described explosion proof door 3 is provided with closedown back-moving spring, it is simple to explosion proof door 3
Reset close.
It is arranged on and closes in wall, depending on installation quantity is according to tunnel original ventilation basal area and return air gas density, Ke Yian
Fill a set of, two set and three sets.
In closed process, first closing water valve switch 10, then add clean water to lightweight bucket 9, bucket gravity is passed to and is led
Messenger 8, then pass to explosion proof door 3 by the second fixed pulley 7 and the first fixed pulley 6 guiding so that it is progressively to oblique opened above,
During until the hinge-connection contacting surface of the explosion proof door 3 opening elbow 2 with 45 degree becomes 80 90 degree, add the existing water yield about three/
Stop after one adding water, so that it may keep the ventilation basal area of safety, it is ensured that safe air quantity dilution gas, do not easily cause methane accumulation.
Closing after wall builds up, removing the time of safety area according to personnel, open water valve switch 10 to the scales indicated, water
Door trip 10 starts draining outward, and now fore shaft program has been turned on automatically, and rescue personnel the most all evacuates to safety area, along with
The water yield in lightweight bucket 9 constantly reduces, and is also gradually reduced the unlatching pulling force of explosion proof door 3, when opening pulling force less than explosion proof door 3
Gravity and when making a concerted effort of back-moving spring, explosion proof door 3 is automatically switched off, it is achieved automatically fore shaft.
After there is gas explosion in enclosed area, shock wave cuts off flame by three layers of anti-backfire net 5, will not go out flame
And causing new secondary coal dust gas explosion, tubaeform metal tube 4 gathers explosion wave, curved by 1,45 degree of openings of metal tube
2 to impact explosion proof door 3 inboard, and explosion proof door 3 is automatically washed open and carried out pressure release, substantially reduces and closes the impact of wall and damage energy, protects
What barrier was provided with automatic fore shaft explosion-proof relief closed unit closes wall because pressure release is without being destroyed by blast, reduces demolition and closes the danger of wall
Dangerous.
After explosion wave disappears, explosion proof door 3 relies on deadweight and the force action of back-moving spring to automatically reset cut out, then
The automatic fore shaft of secondary realization is closed.
In sum, this utility model makes to close wall in closed process, can maintain safe ventilation basal area, make envelope
Closed region is ventilated normal, will not form methane accumulation；Close wall after building completes, start automatic fore shaft program, can be first personnel
Remove safety area, then realize automatic fore shaft, ensure the safety of rescue personnel；Close wall disaster area after fore shaft and explosion time, punching occur
Hit ripple and cut off flame by three layers of anti-backfire net, automatically wash explosion proof door open and carry out pressure release, be substantially reduced the impact energy closing wall,
Thus ensure that be provided with automatic fore shaft explosion-proof relief closed unit closes wall because pressure release is without being destroyed by blast；At explosion wave
After disappearance, explosion proof door automatically resets, again automatic fore shaft, keeps the closed performance again closing wall；There is automatic fore shaft and explosion-proof
Decompression function, it is adaptable to the tunnel having the flame range of explosion danger, gas tunnel etc. to have explosion hazard area is closed.
The foregoing is only preferred embodiment of the present utility model, not thereby limit the scope of the claims of the present utility model,
Every equivalent structure transformation utilizing this utility model description to be made, or directly or indirectly use and be attached to other and be correlated with
The technical field of product, is the most in like manner included in scope of patent protection of the present utility model.
Claims (5)
1. an automatic fore shaft explosion-proof relief closed unit, it is characterised in that: include metal tube, opening elbow, explosion proof door, tubaeform
Metal tube, three layers of anti-backfire net, the first fixed pulley, the second fixed pulley, pull rope, lightweight bucket and water valve switch；Described gold
Belonging to pipe is the isometrical tubular structure of level, and the osculum end of described tubaeform metal tube is the most adaptive with one end of described metal tube
Connecting, three layers of described anti-backfire net are arranged on the big opening end of the tubaeform metal tube of described tubaeform metal tube；Described
Opening elbow is 45 ° of bend pipe structures, and one end of described opening elbow is coaxially adaptive with the other end of described metal tube to be connected,
The other end of described opening elbow be arranged on close outside wall and with described explosion proof door chain connection, described hinge is positioned at institute
The surface of the opening elbow stated；The first described fixed pulley and the second fixed pulley are spaced 5m the most in the same direction and are fixed on back
On, the first described fixed pulley is positioned at the surface of described explosion proof door；One end of described pull rope and described explosion proof door
Fixing connecting, the other end of described pull rope is respectively through the first described fixed pulley and the second fixed pulley and described lightweight water
Bucket is fixing to be connected, and described water valve switch is arranged on the bottom of described lightweight bucket.
Automatic fore shaft explosion-proof relief closed unit the most according to claim 1, it is characterised in that: one end of described metal tube
Being provided with ring flange, the osculum end of described tubaeform metal tube is provided with ring flange and fire-retardant sealing gasket, described tubaeform metal
Pipe is tightly connected by one end of described ring flange and fire-retardant sealing gasket with described metal tube.
Automatic fore shaft explosion-proof relief closed unit the most according to claim 1, it is characterised in that: another of described metal tube
End is provided with ring flange, and one end of described opening elbow is provided with ring flange and fire-retardant sealing gasket, and described opening elbow passes through institute
The ring flange stated and fire-retardant sealing gasket are tightly connected with the other end of described metal tube.
Automatic fore shaft explosion-proof relief closed unit the most according to claim 1, it is characterised in that: described metal tube is by one
Or many metallic conduits assemble.
Automatic fore shaft explosion-proof relief closed unit the most according to claim 1, it is characterised in that: described opening elbow and institute
One end that the explosion proof door stated connects is provided with closedown back-moving spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620782784.2U CN205823334U (en) | 2016-07-25 | 2016-07-25 | Automatically fore shaft explosion-proof relief closed unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620782784.2U CN205823334U (en) | 2016-07-25 | 2016-07-25 | Automatically fore shaft explosion-proof relief closed unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205823334U true CN205823334U (en) | 2016-12-21 |
Family
ID=57561444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620782784.2U Expired - Fee Related CN205823334U (en) | 2016-07-25 | 2016-07-25 | Automatically fore shaft explosion-proof relief closed unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205823334U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538278A (en) * | 2018-10-08 | 2019-03-29 | 阳泉煤业（集团）有限责任公司 | A kind of open enclosure method of underground coal mine flame range |
-
2016
- 2016-07-25 CN CN201620782784.2U patent/CN205823334U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538278A (en) * | 2018-10-08 | 2019-03-29 | 阳泉煤业（集团）有限责任公司 | A kind of open enclosure method of underground coal mine flame range |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20161221 Termination date: 20210725 |