CN105089690A - Novel coal mine vertical air shaft explosion-proof door - Google Patents
Novel coal mine vertical air shaft explosion-proof door Download PDFInfo
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- CN105089690A CN105089690A CN201410185933.2A CN201410185933A CN105089690A CN 105089690 A CN105089690 A CN 105089690A CN 201410185933 A CN201410185933 A CN 201410185933A CN 105089690 A CN105089690 A CN 105089690A
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- proof door
- explosion
- coal mine
- hinged
- explosion proof
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Abstract
The invention relates to a coal mine vertical air shaft explosion-proof door and mainly relates to the field of the application of coal mine ventilating systems and in particular an explosion-proof door with one end fixed via a hinged way and other end equipped with a hinge hole. A reinforced concrete wall is built behind the hinged end; two ends of the upper end of the wall body are respectively provided with a fixed pulley; the explosion-proof door and a balance heavy hammer are connected via two steel ropes of the fixed pulleys; and I-shaped steel (7,8) is hinged and together with a detachable spring (1) forms a restorer for the explosion-proof door. Upon under-well explosion, pressure is released from one side with an action of blast wind; after pressure release, the explosion-proof door quickly restores with an action of the restorer; upon air reversing drill for a mining well, drill participants only need to insert a steel beam into a start end of the explosion-proof door after receiving a drill order; and the explosion-proof door can be quickly closed. The novel coal mine vertical air shaft explosion-proof door is rationally structured and possesses reliable performance, thereby meeting demands of air reversing drills and improving impact-resisting capability of the explosion-proof door.
Description
Technical field
The present invention relates to safety of coal mines protection and mine ventilation system regulates field, the explosion proof door utilizing frame for movement to accomplish to close in time automatically after blasting in colliery.
Background technology
Explosion proof door is mounted in the special seal well lid be equipped with on the air draft well head of chief ventilators.Current, mostly the vertical ventilating shaft explosion-proof door applied in colliery is by well lid, wire rope, the compositions such as balance weight.When normally ventilating, it is used to barrier wells downstream and surface air, prevents Air escape branch, ensures that ventilation system is normal.When down-hole is once generation gas or dust explosion accident, explosion proof door is opened by the gas shock of exploding, thus air blast is directly discharged into surface air, plays the effect of pressure release, prevents chief ventilators from causing damage because air blast impacts; When chief ventilators is out of service, can explosion proof door be opened, ventilate to utilize natural ventilation pressure.
But general vertical ventilating shaft explosion-proof door exists following three problems: the intensity of 1. blasting once down-hole is higher, and explosion proof door is often lifted by air blast and flies, thus can not recover to ventilate in the very first time, and then rescue work cannot be launched within the very first time; 2., when chief ventilators has a power failure telegram in reply, explosion proof door cannot open and close in time easily; 3. carrying out in inverted ventilation manoeuvre, often cannot within the shortest time, fastening explosion proof door.
Summary of the invention
Lifted when blasting in colliery flown to make up existing explosion-proof door of coal miine vertical shaft, the problem of ventilating can not be recovered in the very first time.The present invention proposes a kind of novel Antiexplosive manhole cover, utilize reliable frame for movement, explosion proof door can automatically cut out in time after blasting in colliery.
The technical scheme that patent of the present invention adopts is: explosion proof door two ends are increased by two fastening devicess, one end articulated manner is fixed, and makes it can only as common well lid formula toward one-sided unlatching, and the other end establishes hinge hole, wouldn't process.After hinged end, build the wall of steel concrete, wall both upper ends thereof establishes two fixed pulleys, and two, top pulley connects wire rope, and wire rope one end connects explosion proof door, and the other end connects balance weight by two fixed pulleys again.Explosion proof door center hinge links one section of i iron 7, wall center line hinged one section of i iron 8 on the upper side, i iron 7,8 hinged, and detachable spring is established in hinged place.Two wire rope of balance weight are parallel with hinged i iron.When down-hole is once generation gas or dust explosion accident, explosion proof door is opened by the gas shock of exploding, when explosion proof door is opened to certain angle, hinged i iron is just close to each other, and the spring be now arranged on i iron just works, and stops explosion proof door to continue to open, and under the effect of elastic force and inertia, impel explosion proof door to set back, thus after pressure release, recover in the very first time to ventilate.When chief ventilators can not operate because of power failure or other reasons, the spring on i iron can being unloaded, by balance weight, explosion proof door can be opened rapidly, utilize natural ventilation pressure to ventilate, when sending a telegram in reply, also only needing adjustment weight.When carrying out inverted ventilation manoeuvre, Exercise Order one is assigned, and manoeuvre personnel only need insert one section of girder steel at the opening end of explosion proof door, just can realize explosion proof door and close rapidly, thus can reach the distinguished and admirable reversion in the short time.
The invention solves when down-hole explosion proof door of blasting is lifted and flies, the problem that explosion proof door cannot open and close in time easily when ventilation fan has a power failure telegram in reply.Can improve mine ventilation system generation gas or coal-dust explosion after, explosion proof door closes in time, guarantee chief ventilators for some reason stall time and inverted ventilation manoeuvre in stability, improve the anti-disaster ability of mine, avoid the extension of mine disaster to greatest extent.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further described.
Fig. 1 is left view of the present invention.
Fig. 2 is front view of the present invention.
Fig. 3 is top view of the present invention, 1,7,8 composition restorers, 2 well lids, 3 balance weights, 4 fixed pulleys, 5 pit shafts, 6 keepers.
Detailed description of the invention
1, increase by two fastening devicess at explosion proof door two ends, one end articulated manner is fixed, and makes it can only as common well lid formula toward one-sided unlatching, and the other end establishes hinge hole, wouldn't process.After hinged end, build the wall of steel concrete, wall both upper ends thereof establishes two fixed pulleys, and two, top pulley connects wire rope, and wire rope one end connects explosion proof door, and the other end connects balance weight by two fixed pulleys again.
2, link one section of i iron 7 at explosion proof door center hinge, wall center line hinged one section of i iron 8 on the upper side, i iron 7,8 hinged, detachable spring is established in hinged place.
3, by parallel with hinged i iron for two of balance weight wire rope.
Claims (5)
1. the vertical ventilating shaft explosion-proof door of a New Coal Mine ventilation system.
2. compared with common explosion proof door, feature be can accomplish colliery blast after the timely closedown of explosion proof door, and be conducive to explosion proof door in inverted ventilation manoeuvre and close timely.
3. the vertical ventilating shaft explosion-proof door of New Coal Mine ventilation system according to claim 1, is characterized in that, the one-sided unlatching of explosion proof door, and the side end opened has a hinge hole, when facilitating inverted ventilation manoeuvre, realize explosion proof door and close rapidly, thus the distinguished and admirable reversion in the short time can be reached.
4. the vertical ventilating shaft explosion-proof door of New Coal Mine ventilation system according to claim 1, is characterized in that explosion proof door center hinge links one section of i iron 7, wall center line hinged one section of i iron 8 on the upper side, i iron 7,8 hinged, and dismountable spring is established in hinged place.
5. two wire rope of weight equalizer are parallel with hinged i iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410185933.2A CN105089690A (en) | 2014-05-06 | 2014-05-06 | Novel coal mine vertical air shaft explosion-proof door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410185933.2A CN105089690A (en) | 2014-05-06 | 2014-05-06 | Novel coal mine vertical air shaft explosion-proof door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105089690A true CN105089690A (en) | 2015-11-25 |
Family
ID=54570921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410185933.2A Pending CN105089690A (en) | 2014-05-06 | 2014-05-06 | Novel coal mine vertical air shaft explosion-proof door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105089690A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105484793A (en) * | 2015-12-18 | 2016-04-13 | 中国人民解放军理工大学 | Rapid plugging device for air-raid shelter roof |
| CN107131003A (en) * | 2016-02-29 | 2017-09-05 | 叶中豹 | One kind is used for the new ventilating shaft explosion-proof door in underground |
| CN108343461A (en) * | 2017-07-10 | 2018-07-31 | 山东科技大学 | Mine main ventilator Antiexplosive manhole cover |
-
2014
- 2014-05-06 CN CN201410185933.2A patent/CN105089690A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105484793A (en) * | 2015-12-18 | 2016-04-13 | 中国人民解放军理工大学 | Rapid plugging device for air-raid shelter roof |
| CN107131003A (en) * | 2016-02-29 | 2017-09-05 | 叶中豹 | One kind is used for the new ventilating shaft explosion-proof door in underground |
| CN108343461A (en) * | 2017-07-10 | 2018-07-31 | 山东科技大学 | Mine main ventilator Antiexplosive manhole cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151125 |
|
| WD01 | Invention patent application deemed withdrawn after publication |