CN102486094A - Dry-type side-by-side explosion-proof cover - Google Patents
Dry-type side-by-side explosion-proof cover Download PDFInfo
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- CN102486094A CN102486094A CN2010105823596A CN201010582359A CN102486094A CN 102486094 A CN102486094 A CN 102486094A CN 2010105823596 A CN2010105823596 A CN 2010105823596A CN 201010582359 A CN201010582359 A CN 201010582359A CN 102486094 A CN102486094 A CN 102486094A
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Abstract
The invention relates to a mine dry-type side-by-side explosion-proof cover for a vertical ventilating shaft, belonging to a ventilation safety facility for a coal mine. The side-by-side explosion-proof cover mainly comprises cover plates, elastic limiting devices, stop blocks, lugs, counterweights, stand columns, sealing rings, a transverse beam, an air reversing locking device and the like. The explosion cover is of a circular side-by-side structure which is divided from the middle. Semicircular cover plates are hinged with the lugs on a foundation at a shaft mouth. When a mine is normally ventilated, the two cover plates work at a horizontal position and reliable sealing is realized through the sealing rings arranged at the shaft mouth and on the transverse beam under the effects of gravity and negative pressure; once gas explosion happens under the mine, the two cover plates can be simultaneously opened outwards to rapidly release impact wave energy, and after pressure is relieved, the cover plates are restored in time under the effect of gravity to rapidly restore the normal operation of a mine ventilation system; when air is reversed, the locking device tightly presses the two cover plates at the shaft mouth to prevent air from leaking; and when a fan is shut down, the two cover plates are opened under the effect of the counterweights to realize the natural ventilation of the mine.
Description
Technical field
The present invention relates to the upright ventilating shaft Explosion-proof cap of a kind of coalmine ventilation safety device, is that a kind of dry type that can open rapidly and can in time reset is split Explosion-proof cap.
Background technology
The ventilating shaft Explosion-proof cap is the critical facility of coalmine ventilation safety.Its effect is: 1. when the down-hole in a single day gas explosion accident takes place, Explosion-proof cap is opened rapidly under the shock wave effect, avoids damaging with the protection main air blower; Explosion-proof cap can in time reset after accomplishing pressure release.2. under normal circumstances, Explosion-proof cap is airtight at well head, prevents distinguished and admirable short circuit.3. when inverted ventilation, the inverted ventilation locking device is pushed down lid and lock, and prevents to leak out.When 4. blower fan shuts down, open Explosion-proof cap and realize the mine natural ventilation.
Mainly there is following problem in existing upright ventilating shaft Explosion-proof cap:
1, whole Explosion-proof cap adopts liquid seal, and liquid evaporates easily, leaks out occurring in case fluid infusion is untimely; Siphoned away in case negative pressure surpasses design load liquid, form and seriously leak out; Need consider antifreeze problem cold season.
2, very easily damage after Explosion-proof cap is washed open by shock wave, the difficulty that resets, mine can not in time recover normal ventilation.
3, integrated explosion proof system is covered with a plurality of counter weights, and necessary many people simultaneously operating when resetting can't proper reset when undermanned.
Summary of the invention
The objective of the invention is provides a kind of new type explosion proof lid to the existing Explosion-proof cap deficiencies such as difficulty, sealing performance are unreliable of damaging easily, reset.
The objective of the invention is to realize like this:
A kind of dry type is split Explosion-proof cap, mainly is made up of cover plate, elastic limit device, ear seat, block, weight, column, sealing ring, crossbeam, inverted ventilation locking device etc.
Crossbeam, column, ear seat, inverted ventilation locking device all are fixed on the ventilating shaft well head basis; And crossbeam is located at the well head position of center line; Its cross section is a streamline structure wide at the top and narrow at the bottom, when gas explosion, can play the effect of shunting, reduces the suffered impact force of crossbeam; Sealing ring is laid on well head and the crossbeam; Explosion-proof cap is to divide in the circle opening structure, and is hinged through bearing pin and ear seat to the two halves circular cover of dividing; Elastic limit device is installed on the appropriate location of column, is used to limit the angle that cover plate is opened, and can reduce because of the excessive impact that causes of cover plate opening speed simultaneously; Block also is installed on the column, is used for the position that control cover plate is closed, and can reduce because of the excessive impact that causes of cover plate closing velocity simultaneously; Weight is the MULTIPLE COMPOSITE pouring weight, conveniently adjusted counterweight, and it is connected with cover plate with wire rope through the rope sheave on the column.
When mine normally ventilated, the two halves circular cover was operated in horizontal level, utilized gravity and suction function, realized positiver sealing through the sealing ring that is located on well head and the crossbeam; In case gas explosion takes place in the down-hole, two cover plates can outwards be opened simultaneously, rapid release of shock wave energy, and after the pressure release, two cover plates in time reset under the effect of gravity, and fast quick-recovery mine ventilation system is normally moved; During inverted ventilation, locking device is pressed on two cover plates on the well head, prevents to leak out; When blower fan was stopped transport, two cover plates were opened under the effect of weight, realized the mine natural ventilation.
Advantage of the present invention is: it is simple in structure that dry type is split Explosion-proof cap, and sealing is reliable, opens rapidly, resets in time, and operation and maintenance is easy, can effectively solve the coalmine ventilation safety problem, has good usability and promotional value.
Description of drawings
Fig. 1 is that dry type is split Explosion-proof cap and closed the vertical section sketch map of operating position;
Fig. 2 is that dry type is split Explosion-proof cap Plane Installation sketch map;
Fig. 3 is that dry type is split Explosion-proof cap and opened the vertical section sketch map of operating position.
Among the figure, 1. elastic limit device 2. cover plates 3. ear seats 4. bearing pins 5. inverted ventilation locking devices 6. wire rope 7. rope sheaves 8. blocks 9. weights 10. columns 11. sealing rings 12. crossbeams 13. boreholes wall
The specific embodiment
With reference to accompanying drawing 1, Fig. 2, Fig. 3, the present invention is mainly by mainly being made up of cover plate (2), elastic limit device (1), ear seat (3), block (8), weight (9), column (10), sealing ring (11), crossbeam (12), inverted ventilation locking device (5) etc.Crossbeam (12), column (10), ear seat (3), inverted ventilation locking device (5) all are fixed on the ventilating shaft well head basis; And crossbeam (12) is located at the well head position of center line; Its cross section is a streamline structure wide at the top and narrow at the bottom; When gas explosion, can play the effect of shunting, reduce the suffered impact force of crossbeam (12); Sealing ring (11) is laid on well head and the crossbeam (12); Two halves circular cover (2) to dividing is hinged through bearing pin (4) and ear seat (3); Elastic limit device (1) is installed on the appropriate location of column (10), is used to limit the angle that cover plate (2) is opened, and can reduce because of the excessive impact that causes of cover plate (2) opening speed simultaneously; Block (8) also is installed on the appropriate location of column (10), is used for the operating position of control cover plate (2) when closing, and can reduce because of the excessive impact that causes of cover plate (2) closing velocity simultaneously; Weight (9) is the MULTIPLE COMPOSITE pouring weight, conveniently adjusted counterweight, and it is connected with cover plate (2) with wire rope (6) through the rope sheave (7) on the column (10).When mine normally ventilated, two fan cover plates (2) were operated in horizontal level, utilize gravity and suction function, realized positiver sealing through the sealing ring (11) that is located on well head and the crossbeam; In case gas explosion takes place in the down-hole, two cover plates (2) can outwards be opened simultaneously, rapid release of shock wave energy, and after the pressure release, two cover plates (2) in time reset under the effect of gravity, and fast quick-recovery mine ventilation system is normally moved; During inverted ventilation, locking device (5) is pressed on two cover plates (2) on the well head, prevents to leak out; When blower fan was stopped transport, two cover plates (2) were opened under the effect of weight (9), realized the mine natural ventilation.
Claims (4)
1. a dry type is split Explosion-proof cap; Belong to the upright ventilating shaft ventilation safety facility in colliery, mainly be made up of cover plate (2), elastic limit device (1), ear seat (3), block (8), weight (9), column (10), sealing ring (11), crossbeam (12), inverted ventilation locking device (5) etc., it is characterized in that: Explosion-proof cap is to divide in the circle opening structure; Two halves circular cover (2) is hinged with the ear seat (3) that is fixed on the well head basis respectively; Be fixed with a crossbeam (12) at the well head position of center line, on well head and crossbeam (12), be equipped with sealing ring (11), cover plate when blasting (2) can be opened fast; After the pressure release, cover plate (2) can be closed rapidly.
2. dry type as claimed in claim 1 is split Explosion-proof cap, it is characterized in that: well head crossbeam (12) cross section is a streamline structure wide at the top and narrow at the bottom, when gas explosion, can play the effect of shunting, reduces the suffered impact force of crossbeam (12).
3. dry type as claimed in claim 1 is split Explosion-proof cap; It is characterized in that: elastic limit device (1), block (8) are fixed on the appropriate location of column (10); Can limit angle that cover plate (2) the opens position when closed, and can reduce to open or close the impact that excessive velocities causes because of cover plate (2).
4. dry type as claimed in claim 1 is split Explosion-proof cap, it is characterized in that: weight (9) is the MULTIPLE COMPOSITE pouring weight, conveniently adjusted counterweight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105823596A CN102486094A (en) | 2010-12-01 | 2010-12-01 | Dry-type side-by-side explosion-proof cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105823596A CN102486094A (en) | 2010-12-01 | 2010-12-01 | Dry-type side-by-side explosion-proof cover |
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| Publication Number | Publication Date |
|---|---|
| CN102486094A true CN102486094A (en) | 2012-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105823596A Pending CN102486094A (en) | 2010-12-01 | 2010-12-01 | Dry-type side-by-side explosion-proof cover |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767951A (en) * | 2012-08-03 | 2012-11-07 | 高彦 | Openable sealing device for sintering machine or traveling grate machine |
| CN103670494A (en) * | 2013-12-06 | 2014-03-26 | 平安煤矿瓦斯治理国家工程研究中心有限责任公司 | Collection device of coal mine ventilation air methane |
| CN106730500A (en) * | 2016-11-22 | 2017-05-31 | 上海化工研究院有限公司 | In dust gas exhaust piping passive delivery self-locking emergency decompression with isolate fire retardant device |
| CN109113785A (en) * | 2018-09-29 | 2019-01-01 | 中国矿业大学 | A kind of safe air-taking system of coal mine wind-lack gas |
Citations (5)
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|---|---|---|---|---|
| DE29614824U1 (en) * | 1996-08-26 | 1996-10-17 | Siemens Ag | Flameproof compact station |
| CN1811133A (en) * | 2005-12-31 | 2006-08-02 | 沙同庆 | Explosion-proof door locking device for coal mine air-shaft |
| CN101532395A (en) * | 2009-03-15 | 2009-09-16 | 樊铁山 | Method for automatically closing coal mine explosion-proof cover (door) after opening by explosion shock wave |
| CN201610766U (en) * | 2009-12-10 | 2010-10-20 | 张书学 | Automatic opening-closing device for coal mine airshaft explosion door |
| CN201874602U (en) * | 2010-12-01 | 2011-06-22 | 姚贵英 | Dry-type split explosion-proof cover |
-
2010
- 2010-12-01 CN CN2010105823596A patent/CN102486094A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29614824U1 (en) * | 1996-08-26 | 1996-10-17 | Siemens Ag | Flameproof compact station |
| CN1811133A (en) * | 2005-12-31 | 2006-08-02 | 沙同庆 | Explosion-proof door locking device for coal mine air-shaft |
| CN101532395A (en) * | 2009-03-15 | 2009-09-16 | 樊铁山 | Method for automatically closing coal mine explosion-proof cover (door) after opening by explosion shock wave |
| CN201610766U (en) * | 2009-12-10 | 2010-10-20 | 张书学 | Automatic opening-closing device for coal mine airshaft explosion door |
| CN201874602U (en) * | 2010-12-01 | 2011-06-22 | 姚贵英 | Dry-type split explosion-proof cover |
Non-Patent Citations (2)
| Title |
|---|
| 王永: "浅谈煤矿立井通风机自卸式防爆门设计", 《科技情报开发与经济》, vol. 20, no. 30, 30 November 2010 (2010-11-30) * |
| 钟鸣远等: "风井不停风条件下的立井防爆门设计与安装", 《煤炭工程》, no. 02, 20 February 2003 (2003-02-20) * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767951A (en) * | 2012-08-03 | 2012-11-07 | 高彦 | Openable sealing device for sintering machine or traveling grate machine |
| CN103670494A (en) * | 2013-12-06 | 2014-03-26 | 平安煤矿瓦斯治理国家工程研究中心有限责任公司 | Collection device of coal mine ventilation air methane |
| CN103670494B (en) * | 2013-12-06 | 2015-11-11 | 平安煤矿瓦斯治理国家工程研究中心有限责任公司 | A kind of collection device of coal mine ventilation air methane |
| CN106730500A (en) * | 2016-11-22 | 2017-05-31 | 上海化工研究院有限公司 | In dust gas exhaust piping passive delivery self-locking emergency decompression with isolate fire retardant device |
| CN106730500B (en) * | 2016-11-22 | 2020-01-03 | 上海化工研究院有限公司 | Unpowered self-locking type emergency pressure relief and isolation fire retardant device in dust collection exhaust pipeline |
| CN109113785A (en) * | 2018-09-29 | 2019-01-01 | 中国矿业大学 | A kind of safe air-taking system of coal mine wind-lack gas |
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Application publication date: 20120606 |