CN201874602U - Dry-type split explosion-proof cover - Google Patents
Dry-type split explosion-proof cover Download PDFInfo
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- CN201874602U CN201874602U CN2010206510058U CN201020651005U CN201874602U CN 201874602 U CN201874602 U CN 201874602U CN 2010206510058 U CN2010206510058 U CN 2010206510058U CN 201020651005 U CN201020651005 U CN 201020651005U CN 201874602 U CN201874602 U CN 201874602U
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- explosion
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- crossbeam
- ventilation
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Abstract
The utility model discloses a dry-type split explosion-proof cover for a mineral vertical ventilating shaft and belongs to the ventilation safety facility of a coal mine. The dry-type split explosion-proof cover mainly comprises cover plates, elastic limiting devices, stop blocks, lugs, heavy bobs, upright posts, sealing rings, a cross beam, an inverted ventilation locking device and the like and is in a circular mid-split structure, wherein the semi-circular cover plates are hinged with the lugs fixed on a foreshaft foundation. When the mine normally ventilates, two cover plates work at the horizontal position; the reliable sealing can be realized by the sealing rings which are respectively arranged on the foreshaft and the cross beam by using the gravity and the negative pressure action; once gas explodes underground, the two cover plates can be simultaneously opened outwards to quickly release impact wave energy; after the pressure is relieved, the cover plates can be reset in time under the action of the gravity and the normal operation of a ventilation system of the coal mine can be quickly restored; during inverted ventilation, the two cover plates are compressed on the foreshaft by the locking device to prevent air from being leaked; and when a fan stops rotating, the two cover plates are opened under the action of the heavy bobs so as to realize the natural ventilation of the coal mine.
Description
Technical field
The utility model 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 finishing 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 are the following problems for 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; Be sucked 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 purpose of this utility model is at the existing Explosion-proof cap deficiencies such as difficulty, sealing performance are unreliable of damaging easily, reset, and a kind of new type explosion proof lid is provided.
The purpose of this utility model is achieved in that
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, can play the effect of shunting when gas explosion, 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 by 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 by 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.
The utility model has the advantages that: 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 schematic diagram of operating position;
Fig. 2 is that dry type is split Explosion-proof cap Plane Installation schematic diagram;
Fig. 3 is that dry type is split Explosion-proof cap and opened the vertical section schematic diagram 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 utility model 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); Hinged to the two halves circular cover (2) of dividing by 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 by 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 by 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 compositions such as (5), 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, can play the effect of shunting when gas explosion, 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) opens and the 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 |
|---|---|---|---|
| CN2010206510058U CN201874602U (en) | 2010-12-01 | 2010-12-01 | Dry-type split explosion-proof cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206510058U CN201874602U (en) | 2010-12-01 | 2010-12-01 | Dry-type split explosion-proof cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201874602U true CN201874602U (en) | 2011-06-22 |
Family
ID=44162524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206510058U Expired - Fee Related CN201874602U (en) | 2010-12-01 | 2010-12-01 | Dry-type split explosion-proof cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201874602U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102486094A (en) * | 2010-12-01 | 2012-06-06 | 姚贵英 | Dry-type side-by-side explosion-proof cover |
-
2010
- 2010-12-01 CN CN2010206510058U patent/CN201874602U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102486094A (en) * | 2010-12-01 | 2012-06-06 | 姚贵英 | Dry-type side-by-side explosion-proof cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110622 Termination date: 20131201 |