CN113074016A - Shock wave resistant coal mine protection device with efficient pressure relief function - Google Patents
Shock wave resistant coal mine protection device with efficient pressure relief function Download PDFInfo
- Publication number
- CN113074016A CN113074016A CN202110391437.2A CN202110391437A CN113074016A CN 113074016 A CN113074016 A CN 113074016A CN 202110391437 A CN202110391437 A CN 202110391437A CN 113074016 A CN113074016 A CN 113074016A
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- Prior art keywords
- explosion
- threaded rod
- proof cover
- air outlet
- cover
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/16—Shaft covers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/68—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements
- B01D46/681—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements by scrapers, brushes or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mining & Mineral Resources (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses an impact wave resistant coal mine protection device with high-efficiency pressure relief, which comprises a mine air outlet, wherein the mine air outlet is formed in the bottom surface of a mining area, an explosion-proof cover for protection is connected to the top of the mine air outlet in a nested manner, and a filtering and purifying port for ventilating and filtering harmful substances is formed in the explosion-proof cover at an equal angle; the sleeve cover is sleeved, attached and connected to the outer side of the top of the explosion-proof cover, a vent hole for pressure relief is correspondingly formed in the sleeve cover, and the bottom of the sleeve cover is connected to a space formed by the mounting groove; the circular ring plate is movably connected to the bottom of the inner side of the mine air outlet; and the longitudinal threaded rod is connected with the bottom of the explosion-proof cover through a symmetrical shaft and is connected with a transverse threaded rod through a bevel gear connecting piece. This shock wave type coal mine protector that shocks resistance of high-efficient pressure release can carry out quick pressure release, can filter air and debris, and clears up filterable debris, carries out automatic re-setting after the clearance finishes simultaneously.
Description
Technical Field
The invention relates to the technical field of coal mine protection devices, in particular to an impact-resistant wave type coal mine protection device capable of efficiently relieving pressure.
Background
When the coal mine in the mine is excavated, explosive splicing materials can be removed from the mine, and in order to prevent accidents, the high-efficiency pressure-relief shock-resistant wave type coal mine protection device can be installed at the position of a vent of the mine, however, the existing high-efficiency pressure-relief shock-resistant wave type coal mine protection device has the following problems:
the safety explosion-proof device for coal mine ventilation disclosed by the publication number CN212716722U is driven by wind power, is energy-saving and environment-friendly, and can filter air. However, the filtered sundries are inconvenient to clean in the using process, and the filtered sundries are inconvenient to automatically reset after being cleaned.
We have therefore proposed an impact wave type coal mine protection device with efficient pressure relief to address the problems set out above.
Disclosure of Invention
The invention aims to provide an auxiliary fixing device for gastroscopy in the gastroenterology, which aims to solve the problems that the conventional high-efficiency pressure-relief shock-resistant wave type coal mine protection device in the market is inconvenient to clean filtered sundries and can be automatically reset after the filtered sundries are cleaned.
In order to achieve the purpose, the invention provides the following technical scheme: an anti-impact wave type coal mine protection device with high-efficiency pressure relief comprises a mine air outlet, a filter and purification port, wherein the mine air outlet is formed in the bottom surface of a mining area, an anti-explosion cover for protection is connected to the top of the mine air outlet in a nested mode, and the anti-explosion cover is provided with filter and purification ports for ventilating and filtering harmful substances at equal angles;
the sleeve cover is sleeved, attached and connected to the outer side of the top of the explosion-proof cover, an air vent for pressure relief is correspondingly formed in the sleeve cover, the bottom of the sleeve cover is connected to a space formed by the mounting groove, and the mounting groove is formed in the top of the mine air outlet;
the circular plate is movably connected to the bottom of the inner side of the mine air outlet and is attached to the inner wall of the mine air outlet;
and the longitudinal threaded rod is connected with the bottom of the explosion-proof cover through a symmetrical shaft, is connected with the transverse threaded rod through a bevel gear connecting piece, is symmetrically arranged at the bottom of the explosion-proof cover, and is connected with the side wall of the explosion-proof cover through an installation sleeve rod.
Preferably, the end of the circular ring plate is fixedly provided with a connecting rod, the connecting rod is connected in a space formed by the vertical grooves, the vertical grooves are symmetrically arranged on the side wall of the mine air outlet, the top of the connecting rod is fixedly provided with a first pull rope for connection, meanwhile, the top of the first pull rope is wound on the skewed tooth roller, the skewed tooth roller shaft is connected in the mounting groove, the mounting groove is arranged at the top of the mine air outlet, a first torsion spring for resetting is connected between the skewed tooth roller and the mounting groove, the top of the skewed tooth roller is connected with special-shaped convex teeth meshed with the skewed tooth roller, and the special-shaped convex teeth are distributed at the bottom of the sleeve cover in an equal angle manner, so that the connecting rod can be synchronously driven to move in the vertical grooves when the circular ring plate moves upwards, the first pull rope is loosened, the first torsion spring on the skewed tooth roller can rotate, and then the skewed tooth roller is driven to rotate, the helical gear roller can be meshed with the special-shaped convex gear, so that the sleeve cover is driven to rotate in the mounting groove.
Preferably, the skewed tooth roller constitutes reciprocal rotating-structure with the mounting groove through the effect of first stay cord and first torque spring, and the meshing of skewed tooth roller and special-shaped protruding tooth drives the cover and rotates in the mounting groove for tightening up and relaxing of first stay cord will drive first torque spring and invert and reset, and then drive skewed tooth roller and carry out reciprocal rotation, thereby drive the upper shield and rotate and reset.
Preferably, the number and the position of the filtering and purifying ports formed in the explosion-proof cover correspond to those of the vent holes formed in the cover, and the cover rotates to drive the filtering and purifying ports to coincide with the vent holes, so that the vent holes and the filtering and purifying ports formed in the explosion-proof cover can be punched after the cover rotates on the explosion-proof cover, and then the high pressure is unloaded.
Preferably, a second pull rope is fixed on the left side of the top of the circular ring plate, the top of the second pull rope is wound on the end part of the longitudinal threaded rod, a second torsion spring is connected between the rear end part of the longitudinal threaded rod and the side wall of the explosion-proof cover, a cleaning brush is sleeved on the middle part of the longitudinal threaded rod and the middle part of the transverse threaded rod connected through a bevel gear connecting piece in a threaded manner, a limiting rod for preventing rotation is fixed on the outer side of the cleaning brush, the top of the limiting rod is connected in a limiting groove, the limiting groove is formed in the bottom of the explosion-proof cover, the limiting groove is formed in two sides of the filtering and purifying port, the filtering and purifying port corresponds to the cleaning brush in position, so that after the circular ring plate moves upwards, the second pull rope is loosened, the second torsion spring on the longitudinal threaded rod is reset to drive the longitudinal threaded rod to rotate, and after the longitudinal threaded rod rotates, the transverse threaded rod is driven to, and then the cleaning brush is driven to clean the filtering and purifying port synchronously.
Preferably, the longitudinal threaded rod drives other longitudinal threaded rods and the transverse threaded rod to synchronously rotate through the second pull rope and the second torsion spring, so that a linkage structure is formed, the cleaning brush can be driven to move by the rotation of the longitudinal threaded rod and the transverse threaded rod, and after the longitudinal threaded rod rotates, the rest longitudinal threaded rod and the rest transverse threaded rod can be driven to rotate through the bevel gear connecting piece, so that the structure is compact, and the cleaning efficiency is high.
Preferably, the gag lever post symmetry sets up in the both sides of cleaning brush, and the cleaning brush keeps rectilinear movement through gag lever post and spacing groove for longitudinal threaded rod and horizontal threaded rod when rotating, gag lever post and the spacing groove on the cleaning brush can restrict the motion trail of cleaning brush, prevent to take place pivoted phenomenon.
Compared with the prior art, the invention has the beneficial effects that: the shock wave resistant coal mine protection device with high-efficiency pressure relief;
(1) through the arranged filtering and purifying port, the vent hole, the connecting rod, the first pull rope, the oblique toothed roller, the first torsion spring and the special-shaped convex teeth, after the connecting rod moves up and down in the vertical groove, the first pull rope can be loosened, the first torsion spring arranged on the oblique toothed roller can rotate to drive the oblique toothed roller to rotate, the oblique toothed roller can drive the sleeve cover to rotate at the top of the explosion-proof cover through meshing with the special-shaped convex teeth, and then the filtering and purifying port and the vent hole are overlapped, so that the inside of the mine vent hole is efficiently decompressed, and harmful substances can be purified and filtered;
(2) through the ring plate that sets up, the second stay cord, longitudinal thread pole, second torque spring, horizontal threaded rod, the cleaning brush, gag lever post and spacing groove, make the ring plate move up the back, will drive the second stay cord and relax, longitudinal thread pole will rotate under the effect of second torque spring gyration power, longitudinal thread pole rotates the back and will drive horizontal threaded rod through the awl tooth connecting piece and rotate in step, horizontal threaded rod and longitudinal thread pole rotate the back and will drive the cleaning brush and clean the debris of filtration purification mouth department, and the gag lever post can slide in the spacing groove, and then keep the rectilinear movement of cleaning brush.
Drawings
FIG. 1 is a schematic view of the overall front view structure of the present invention;
FIG. 2 is a schematic diagram of the structure of the filtering and purifying port and the vent port before operation;
FIG. 3 is a schematic top view of the vertical slot of the present invention;
FIG. 4 is a schematic view of a side view of the connection between the irregular teeth and the helical teeth roller of the present invention;
FIG. 5 is a schematic view of the connection structure of the special-shaped convex teeth and the helical tooth roller of the present invention;
fig. 6 is a bottom view of the explosion-proof cover of the present invention.
In the figure: 1. a mine air outlet; 2. an explosion-proof cover; 3. a filtration purification port; 4. covering; 5. a vent; 6. a circular ring plate; 7. a connecting rod; 8. a vertical slot; 9. a first pull cord; 10. a skewed tooth roller; 11. mounting grooves; 12. a first torsion spring; 13. special-shaped convex teeth; 14. a second pull cord; 15. a longitudinal threaded rod; 16. a second torsion spring; 17. a bevel gear connector; 18. a transverse threaded rod; 19. installing a loop bar; 20. a cleaning brush; 201. a limiting rod; 202. a limiting groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: an impact-resistant wave type coal mine protection device with high-efficiency pressure relief comprises a mine air outlet 1, an explosion-proof cover 2 for protection is connected to the top of the mine air outlet 1 in a nested mode, and a filtering and purifying port 3 for ventilating and filtering harmful substances is formed in the explosion-proof cover 2 at an equal angle;
the cover 4 is sleeved, attached and connected to the outer side of the top of the explosion-proof cover 2, a vent 5 for pressure relief is correspondingly formed in the cover 4, the bottom of the cover 4 is connected to a space formed by the mounting groove 11, and the mounting groove 11 is formed in the top of the mine air outlet 1;
the circular plate 6 is movably connected to the bottom of the inner side of the mine air outlet 1 and is attached to the inner wall of the mine air outlet 1;
the longitudinal threaded rod 15 is symmetrically connected to the bottom of the explosion-proof cover 2, the transverse threaded rod 18 is connected to the longitudinal threaded rod 15 through a bevel gear connecting piece 17, the transverse threaded rod 18 is symmetrically arranged at the bottom of the explosion-proof cover 2, and the transverse threaded rod 18 is connected to the side wall of the explosion-proof cover 2 through a mounting sleeve rod 19.
A connecting rod 7 is fixedly installed at the end part of the circular ring plate 6, the connecting rod 7 is connected in a space formed by the vertical grooves 8, the vertical grooves 8 are symmetrically arranged on the side wall of the mine air outlet 1, a first pull rope 9 for connection is fixed at the top part of the connecting rod 7, meanwhile, the top part of the first pull rope 9 is wound on a skewed tooth roller 10, the skewed tooth roller 10 is connected in a mounting groove 11 in a shaft mode, the mounting groove 11 is arranged at the top part of the mine air outlet 1, a first torsion spring 12 for resetting is connected between the skewed tooth roller 10 and the mounting groove 11, the top part of the skewed tooth roller 10 is connected with a special-shaped convex tooth 13 meshed with the skewed tooth roller, meanwhile, the special-shaped convex tooth 13 is distributed at the bottom part of the sleeve cover 4 at equal angles, the skewed tooth roller 10 forms a reciprocating rotating structure with the mounting groove 11 through the action of the first pull rope 9 and the first torsion spring 12, and the meshing of the skewed tooth roller 10 and the special-, the number and the position of the filtering and purifying port 3 arranged on the explosion-proof cover 2 correspond to the number and the position of the vent 5 arranged on the cover 4, and the cover 4 rotates to drive the filtering and purifying port 3 and the vent 5 to coincide, as shown in fig. 1-5, firstly, the device is arranged at the position of the mine vent 1, when wind is discharged from the interior of the mine vent 1, the circular ring plate 6 is pushed to move upwards, the circular ring plate 6 moves upwards and simultaneously drives the connecting rod 7 to move upwards synchronously in the vertical groove 8, after the connecting rod 7 moves upwards, the first pull rope 9 fixed at the top of the connecting rod is in a relaxed state, after the first pull rope 9 is relaxed, the first torsion spring 12 which is in a reverse rotation state on the oblique toothed roller 10 rotates, the first torsion spring 12 drives the oblique toothed roller 10 to rotate, the oblique toothed roller 10 rotates to be meshed with the special-shaped convex teeth 13, and further drives the cover 4 to rotate in the installation groove 11, after the rotation of the sleeve cover 4, the vent 5 arranged at the top of the sleeve cover coincides with the position of the filtering and purifying port 3 arranged on the explosion-proof cover 2, so that air is discharged from the vent 5 after passing through the filtering and purifying port 3, and when the interior of the mine air outlet 1 explodes, the shock wave drives the circular plate 6 to move upwards, so that the high pressure inside the mine air outlet 1 is unloaded, and the filtering and purifying port 3 can intercept and purify impurities and harmful substances.
A second pull rope 14 is fixed on the left side of the top of the circular ring plate 6, the top of the second pull rope 14 is wound on the end part of the longitudinal threaded rod 15, a second torsion spring 16 is connected between the rear end part of the longitudinal threaded rod 15 and the side wall of the explosion-proof cover 2, a cleaning brush 20 is sleeved on the middle part of the longitudinal threaded rod 15 and the middle part of the transverse threaded rod 18 connected through a bevel gear connecting piece 17 in a threaded manner, a limiting rod 201 for preventing rotation is fixed on the outer side of the cleaning brush 20, the top of the limiting rod 201 is connected in a limiting groove 202, the limiting groove 202 is arranged at the bottom of the explosion-proof cover 2, the limiting grooves 202 are positioned on two sides of the filtering and purifying port 3, the position of the filtering and purifying port 3 corresponds to that of the cleaning brush 20, the longitudinal threaded rod 15 drives other longitudinal threaded rods 15 and the transverse threaded rod 18 to synchronously rotate through the second pull rope 14 and the, and the rotation of the longitudinal threaded rod 15 and the transverse threaded rod 18 can drive the cleaning brush 20 to move, the limiting rods 201 are symmetrically arranged at the two sides of the cleaning brush 20, and the cleaning brush 20 keeps moving linearly by the stopper rod 201 and the stopper groove 202 as shown in fig. 1, 3 and 6, while the ring plate 6 moves upward, and also to release the second pulling rope 14, the second torsion spring 16 which is installed on the longitudinal threaded rod 15 and is in the initial state of reverse rotation starts to reset and rotate, and further drives the longitudinal threaded rod 15 to rotate, after the longitudinal threaded rod 15 rotates, the other longitudinal threaded rods 15 and the transverse threaded rods 18 are driven to synchronously rotate through the bevel gear connecting piece 17, and further drives the four cleaning brushes 20 to synchronously move, when the cleaning brushes 20 move, the limiting rod 201 fixed at the outer side moves in the limiting groove 202 synchronously, so that the cleaning brush 20 can only move linearly without deviation.
The working principle is as follows: when the high-efficiency pressure-relief shock-resistant wave type coal mine protection device is used, as shown in fig. 1-5, firstly, the annular plate 6 moves upwards, the first stay cord 9 is loosened, the helical gear roller 10 is driven by the first torsion spring 12 to rotate, and after the helical gear roller 10 rotates, the sleeve cover 4 is driven to rotate through the meshing with the special-shaped convex teeth 13, so that the vent 5 is superposed with the position of the filtering and purifying port 3 formed in the explosion-proof cover 2, and then high pressure is relieved and air is filtered;
as shown in fig. 1, 3 and 6, the circular plate 6 moves upward, the second pull rope 14 releases the longitudinal threaded rod 15 and rotates under the driving of the second torsion spring 16, and the longitudinal threaded rod 15 drives the rest of the longitudinal threaded rods 15 and the rest of the transverse threaded rods 18 to synchronously rotate through the bevel gear connecting piece 17, so that the four cleaning brushes 20 are driven to synchronously clean.
Those not described in detail in this specification are within the skill of the art.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (7)
1. The utility model provides a high-efficient shock wave type coal mine protector of pressure release which characterized in that: the method comprises the following steps:
the mine air outlet is arranged on the bottom surface of a mining area, an explosion-proof cover for protection is connected to the top of the mine air outlet in a nested manner, and filtering and purifying ports for ventilating and filtering harmful substances are arranged on the explosion-proof cover at equal angles;
the sleeve cover is sleeved, attached and connected to the outer side of the top of the explosion-proof cover, an air vent for pressure relief is correspondingly formed in the sleeve cover, the bottom of the sleeve cover is connected to a space formed by the mounting groove, and the mounting groove is formed in the top of the mine air outlet;
the circular plate is movably connected to the bottom of the inner side of the mine air outlet and is attached to the inner wall of the mine air outlet;
and the longitudinal threaded rod is connected with the bottom of the explosion-proof cover through a symmetrical shaft, is connected with the transverse threaded rod through a bevel gear connecting piece, is symmetrically arranged at the bottom of the explosion-proof cover, and is connected with the side wall of the explosion-proof cover through an installation sleeve rod.
2. The high efficiency pressure relieving impact wave resistant coal mine protection device of claim 1, wherein: the tip fixed mounting of ring plate has the connecting rod, and the connecting rod is connected in the space that perpendicular groove formed to perpendicular groove symmetry is seted up on the lateral wall of mine air exit, and the top of connecting rod is fixed with the first stay cord that is used for connecting in addition, and the top of first stay cord is around establishing on oblique fluted roller simultaneously, oblique fluted roller shaft is connected in the mounting groove, and the mounting groove is seted up in the top of mine air exit to be connected with the first torsion spring that is used for reseing between oblique fluted roller and the mounting groove, the top of oblique fluted roller is connected with the special-shaped protruding tooth of meshing with it moreover, the equal angular distribution of special-shaped protruding tooth in the bottom of upper shield simultaneously.
3. The high efficiency pressure relieving impact wave resistant coal mine protection device of claim 2, wherein: the helical gear roller and the mounting groove form a reciprocating rotation structure under the action of the first pull rope and the first torsion spring, and the helical gear roller and the special-shaped convex teeth are meshed to drive the sleeve cover to rotate in the mounting groove.
4. The high efficiency pressure relieving impact wave resistant coal mine protection device of claim 1, wherein: the number and the position of the filtering and purifying ports formed in the explosion-proof cover correspond to those of the vent holes formed in the sleeve cover, and the sleeve cover rotates to drive the filtering and purifying ports to coincide with the vent holes.
5. The high efficiency pressure relieving impact wave resistant coal mine protection device of claim 1, wherein: the top left side of ring plate is fixed with the second stay cord, and the top of second stay cord is around locating on the tip of longitudinal threaded rod to be connected with second torque spring between the rear end of longitudinal threaded rod and the lateral wall of explosion-proof cover, and the middle part of longitudinal threaded rod and the equal thread bush in middle part of the horizontal threaded rod that connects through the awl tooth connecting piece are equipped with the cleaning brush, and the outside of cleaning brush is fixed with the gag lever post that prevents the pivoted simultaneously, the top of gag lever post is connected in the spacing groove, and the spacing groove is seted up in the bottom of explosion-proof cover, and the spacing groove is located the both sides of filtration purification mouth, the filtration purification mouth is corresponding with the position of cleaning brush moreover.
6. The high efficiency pressure relieving impact wave resistant coal mine protection device of claim 5, wherein: the longitudinal threaded rod drives other longitudinal threaded rods and transverse threaded rods to synchronously rotate through the second pull rope and the second torsion spring, so that a linkage structure is formed, and the cleaning brush can be driven to move by the rotation of the longitudinal threaded rod and the transverse threaded rod.
7. The high efficiency pressure relieving impact wave resistant coal mine protection device of claim 5, wherein: the limiting rods are symmetrically arranged on two sides of the cleaning brush, and the cleaning brush keeps moving linearly through the limiting rods and the limiting grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110391437.2A CN113074016B (en) | 2021-04-11 | 2021-04-11 | Shock wave resistant coal mine protection device with efficient pressure relief function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110391437.2A CN113074016B (en) | 2021-04-11 | 2021-04-11 | Shock wave resistant coal mine protection device with efficient pressure relief function |
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| Publication Number | Publication Date |
|---|---|
| CN113074016A true CN113074016A (en) | 2021-07-06 |
| CN113074016B CN113074016B (en) | 2023-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110391437.2A Active CN113074016B (en) | 2021-04-11 | 2021-04-11 | Shock wave resistant coal mine protection device with efficient pressure relief function |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410044A (en) * | 2011-07-14 | 2012-04-11 | 鸡西司瑞电气有限公司 | Vertical ventilating shaft explosion door capable of automatically resetting after blast release and pressure relief |
| CN103306704A (en) * | 2013-06-09 | 2013-09-18 | 山东科技大学 | Vertical ventilating shaft anti-explosion door and method for relieving pressure safely and performing ventilation quickly by using door |
| CN112049677A (en) * | 2020-08-20 | 2020-12-08 | 郑学伟 | Colliery wind well is with explosion-proof cover structure convenient to shock wave releases |
| DE102019220089A1 (en) * | 2019-12-18 | 2021-02-04 | W & S Management Gmbh & Co. Kg | Nozzle element for a jet fan and jet fan |
| CN212716722U (en) * | 2020-06-28 | 2021-03-16 | 重庆工程职业技术学院 | Safety explosion-proof device for coal mine ventilation |
-
2021
- 2021-04-11 CN CN202110391437.2A patent/CN113074016B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410044A (en) * | 2011-07-14 | 2012-04-11 | 鸡西司瑞电气有限公司 | Vertical ventilating shaft explosion door capable of automatically resetting after blast release and pressure relief |
| CN103306704A (en) * | 2013-06-09 | 2013-09-18 | 山东科技大学 | Vertical ventilating shaft anti-explosion door and method for relieving pressure safely and performing ventilation quickly by using door |
| DE102019220089A1 (en) * | 2019-12-18 | 2021-02-04 | W & S Management Gmbh & Co. Kg | Nozzle element for a jet fan and jet fan |
| CN212716722U (en) * | 2020-06-28 | 2021-03-16 | 重庆工程职业技术学院 | Safety explosion-proof device for coal mine ventilation |
| CN112049677A (en) * | 2020-08-20 | 2020-12-08 | 郑学伟 | Colliery wind well is with explosion-proof cover structure convenient to shock wave releases |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113074016B (en) | 2023-04-07 |
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