CN101787896B - Pressure releasing device for two-way closed walls - Google Patents
Pressure releasing device for two-way closed walls Download PDFInfo
- Publication number
- CN101787896B CN101787896B CN2009102542390A CN200910254239A CN101787896B CN 101787896 B CN101787896 B CN 101787896B CN 2009102542390 A CN2009102542390 A CN 2009102542390A CN 200910254239 A CN200910254239 A CN 200910254239A CN 101787896 B CN101787896 B CN 101787896B
- Authority
- CN
- China
- Prior art keywords
- door
- releasing device
- pressure releasing
- shock wave
- closed walls
- 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 - Fee Related
Links
- 230000035939 shock Effects 0.000 claims description 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 239000002817 coal dust Substances 0.000 claims description 5
- 238000005496 tempering Methods 0.000 claims description 5
- 238000005422 blasting Methods 0.000 claims description 2
- 238000004880 explosion Methods 0.000 abstract description 14
- 239000000428 dust Substances 0.000 abstract description 6
- 238000009423 ventilation Methods 0.000 abstract description 5
- 239000003245 coal Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 2
- 239000012467 final product Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
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- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention provides a pressure releasing device for two-way closed walls, which is arranged on closed walls of a coal mine and used for preventing the closed walls and ventilation facilities of the coal mine from being damaged by a blast wave of gas explosion. Due to the pressure releasing device, the closed walls are free of damage after the gas explosion happened at any end of the closed walls, and simultaneously the flame of a gas and dust explosion does not cause the gas and dust explosion at the other end of the closed walls due to fire backing nets arranged at both ends. The using method for the two-way closed wall pressure releasing device comprises the step of directly sealing the two-way closed wall pressure releasing device into the closed wall.
Description
Technical field: pressure releasing device for two-way closed walls belongs to colliery one through three prevention technical field, is specially adapted to the dangerous colliery of coal dust gas explosion and closes on the wall.
Background technology: through overall understanding and retrieval, closing wall at present under the coal mine all is to be built to ram by stone loess to form, and in case run into gas explosion; Because sealing is tight can't pressure release, closes wall and have to damage, thereby enlarged accident; Destroyed ventilation system, caused ventilation system disorderly, the pernicious gas in the citadel pours out; Cause great personnel casualty accidents, for solving this difficult problem, we have invented pressure releasing device for two-way closed walls.
Summary of the invention: pressure releasing device for two-way closed walls is that the colliery is closed preventing of installing on the wall coal dust gas explosion shock wave from being damaged and closes wall; Destroy the device of coalmine ventilation facility; After closing any end generation gas explosion of wall; Not only damaged not and closed wall, simultaneously because two ends all are equipped with the tempering net, the flame of gas and dust explosion can not cause yet and closes wall other end gas and dust explosion.Its method for using is pressure releasing device for two-way closed walls directly to be closed to close in the wall get final product.
Pressure releasing device for two-way closed walls; It is characterized in that: two ends are respectively the trumpet type gas skirt, its objective is that an end is used to suck shock wave, and the other end is used for release of shock wave; Be inlaid with double-deck tempering copper mesh on the gas skirt cover; Its objective is that shock wave can pass through copper mesh, and the flame in the shock wave is separated by copper mesh, to stop the gas and coal dust ignition and blasting of flame with the fire dam other end; The gas skirt at two ends links with straight tube respectively through the screw flange, and straight tube links with unidirectional keying lid chamber respectively through the screw flange; The indoor door that has twice to open in opposite directions of unidirectional keying lid, no matter shock wave only has a sect to open when which end gets in two sects, and closing the door in another sect, thereby plays the purpose of individual event unlatching; After shock wave was gone over, the door of opening was closed again under spring action automatically; At indoor two sects that are provided with of unidirectional keying lid; Its structure is door leaf and public doorframe, and door leaf is embedded in the public doorframe, and opening the door and closing the door of two fan doors is in the opposite direction; Its door-hinge is arranged on the tube wall of two ends; The centre is public doorframe, and the section of public doorframe is " z " font, and the plane at door leaf and public doorframe place is perpendicular to the center line of gas skirt and straight tube; By the spring tension, make the indoor door leaf of unidirectional keying be in normally off between door leaf that unidirectional keying lid is indoor and the door-hinge, after personnel or shock wave passed through, door leaf can cut out automatically.
Description of drawings:
Accompanying drawing 1 is the pressure releasing device for two-way closed walls floor map.
Accompanying drawing 2 is the pressure releasing device for two-way closed walls schematic perspective view.
1, trumpet type gas skirt; 2, double-deck tempering copper mesh; 3, straight tube;
4, the chamber is covered in unidirectional keying; 5, door leaf; 6, public doorframe;
7, door-hinge; 8, spring.
The specific embodiment: pressure releasing device for two-way closed walls is that the colliery is closed preventing of installing on the wall coal dust gas explosion shock wave from being damaged and closes wall; Destroy the device of coalmine ventilation facility; After closing any end generation gas explosion of wall; Not only damaged not and closed wall, simultaneously because two ends all are equipped with the tempering net, the flame of gas and dust explosion can not cause yet and closes wall other end gas and dust explosion.Its method for using is pressure releasing device for two-way closed walls directly to be closed to close in the wall get final product.Pressure releasing device for two-way closed walls is installed in when closing on the wall, and pressure releasing device for two-way closed walls integral body is perpendicular to closing wall, and the copper mesh on the trumpet type gas skirt on the pressure releasing device for two-way closed walls is parallel to respectively and closes wall two end wall surfaces simultaneously.
Claims (4)
1. pressure releasing device for two-way closed walls; It is characterized in that: two ends are respectively the trumpet type gas skirt, its objective is that an end is used to suck shock wave, and the other end is used for release of shock wave; Be inlaid with double-deck tempering copper mesh on the gas skirt cover; Its objective is that shock wave can pass through copper mesh, and the flame in the shock wave is separated by copper mesh, to stop the gas and coal dust ignition and blasting of flame with the fire dam other end; The gas skirt at two ends links with straight tube respectively through the screw flange, and straight tube links with unidirectional keying lid chamber respectively through the screw flange.
2. pressure releasing device for two-way closed walls according to claim 1; It is characterized in that: the indoor door that has twice to open in opposite directions of unidirectional keying lid, no matter shock wave only has sect unlatching when which end gets in two sects; Closing the door in another sect, thereby plays the purpose that individual event is opened; After shock wave was gone over, the door of opening was closed again under spring action automatically.
3. pressure releasing device for two-way closed walls according to claim 2 is characterized in that: at indoor two sects that are provided with of unidirectional keying lid, its structure is door leaf and public doorframe; Door leaf is embedded in the public doorframe; Opening the door and closing the door of two fan doors is in the opposite direction, and its door-hinge is arranged on the tube wall of two ends, and the centre is public doorframe; The section of public doorframe is " z " font, and the plane at door leaf and public doorframe place is perpendicular to the center line of gas skirt and straight tube.
4. pressure releasing device for two-way closed walls according to claim 3 is characterized in that: by the spring tension, make the indoor door leaf of unidirectional keying be in normally off between door leaf that unidirectional keying lid is indoor and the door-hinge, after personnel or shock wave passed through, door leaf can cut out automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102542390A CN101787896B (en) | 2009-12-06 | 2009-12-06 | Pressure releasing device for two-way closed walls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102542390A CN101787896B (en) | 2009-12-06 | 2009-12-06 | Pressure releasing device for two-way closed walls |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101787896A CN101787896A (en) | 2010-07-28 |
| CN101787896B true CN101787896B (en) | 2012-11-28 |
Family
ID=42531255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102542390A Expired - Fee Related CN101787896B (en) | 2009-12-06 | 2009-12-06 | Pressure releasing device for two-way closed walls |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101787896B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306724B (en) * | 2013-06-25 | 2015-07-08 | 中国矿业大学(北京) | Convex cage-shaped closed gob energy-absorbing structure and construction method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1811133A (en) * | 2005-12-31 | 2006-08-02 | 沙同庆 | Explosion-proof door locking device for coal mine air-shaft |
| CN2825956Y (en) * | 2005-06-29 | 2006-10-11 | 雷志远 | Interlocked alarming air door |
| CN201221382Y (en) * | 2008-05-19 | 2009-04-15 | 昆明理工大学 | Mine laneway flexible pneumatic air door |
| CN201301724Y (en) * | 2008-11-25 | 2009-09-02 | 山西焦煤集团有限责任公司 | Comprehensive safety safeguard air door system |
-
2009
- 2009-12-06 CN CN2009102542390A patent/CN101787896B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2825956Y (en) * | 2005-06-29 | 2006-10-11 | 雷志远 | Interlocked alarming air door |
| CN1811133A (en) * | 2005-12-31 | 2006-08-02 | 沙同庆 | Explosion-proof door locking device for coal mine air-shaft |
| CN201221382Y (en) * | 2008-05-19 | 2009-04-15 | 昆明理工大学 | Mine laneway flexible pneumatic air door |
| CN201301724Y (en) * | 2008-11-25 | 2009-09-02 | 山西焦煤集团有限责任公司 | Comprehensive safety safeguard air door system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101787896A (en) | 2010-07-28 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 |