CN221299252U - Fireproof device for rapidly inflating and isolating air flow in coal mine roadway and tunnel - Google Patents
Fireproof device for rapidly inflating and isolating air flow in coal mine roadway and tunnel Download PDFInfo
- Publication number
- CN221299252U CN221299252U CN202323505508.0U CN202323505508U CN221299252U CN 221299252 U CN221299252 U CN 221299252U CN 202323505508 U CN202323505508 U CN 202323505508U CN 221299252 U CN221299252 U CN 221299252U
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- outer frame
- air
- coal mine
- air bag
- pull rod
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- 239000003245 coal Substances 0.000 title claims abstract description 19
- 238000005192 partition Methods 0.000 claims abstract description 13
- 230000000712 assembly Effects 0.000 claims abstract description 7
- 238000000429 assembly Methods 0.000 claims abstract description 7
- 230000007423 decrease Effects 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims description 2
- 238000004880 explosion Methods 0.000 abstract description 6
- 230000000903 blocking effect Effects 0.000 abstract description 5
- 238000009423 ventilation Methods 0.000 abstract description 3
- 231100000614 poison Toxicity 0.000 abstract description 2
- 230000007096 poisonous effect Effects 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 20
- 239000002341 toxic gas Substances 0.000 description 5
- 239000000779 smoke Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000002817 coal dust Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Abstract
The utility model provides a fire protection device for rapidly inflating and blocking air flow in coal mine roadways and tunnels, which comprises: the outer frame is buried in the roadway wall, a storage cavity is arranged in the outer frame, and an opening communicated with the storage cavity is formed in the inner side of the outer frame; comprises a base, a vault and two supporting frames; the partition assembly is provided with two partition assemblies which are symmetrically arranged in the outer frame and comprise an air bag, a guide shaft, a sliding block and a pull rod; the control unit comprises a controller, an electromagnetic valve and a gas sensor; the device can be buried in the tunnel wall, and does not occupy the space of the normal operation environment; a quick starting mechanism is provided, and the occurrence of a fire or explosion event is monitored through a gas sensor, so that a device is started in a very short time to quickly respond to an emergency; through the automatic sealing structure that the air supply end blows to the gasbag, the device can be rapidly unfolded and sealed the ventilation area of well lane or tunnel when starting, ensures that poisonous gas is effectively isolated, prevents to spread to other areas.
Description
Technical Field
The utility model relates to the technical field of fireproof devices, in particular to a fireproof device for rapidly inflating and blocking air flow in coal mine roadways and tunnels.
Background
Coal mines are a potentially dangerous working environment that includes flammable gases, coal dust, and other toxic and hazardous materials. In coal mine roadway or tunnel operation, fire and explosion events can lead to serious safety issues, including the generation and diffusion of toxic gases. Coal mine roadway systems typically employ wind currents for ventilation to remove coal dust and toxic gases. However, in the event of a fire or explosion, toxic gases may rapidly spread, threatening the life safety of miners.
Current coal mine safety systems typically rely on fire alarm and exhaust systems, but these systems have difficulty rapidly isolating the air flow path during the initial stages of a fire to control the transmission of toxic gases. Existing shut-off devices often require long start-up times, and in emergency situations, every second is critical. Therefore, an innovative device is needed, which can quickly block the wind flow channel when a fire or explosion occurs, limit the transmission of toxic gas and improve the safety of coal mine operation.
Disclosure of utility model
Aiming at the technical defects, the utility model aims to provide a fireproof device for rapidly inflating and blocking air flow in coal mine roadways and tunnels, and solves the problem that the conventional device is difficult to rapidly block an air flow channel in a fire or explosion event.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a fire prevention device for coal mine roadway and tunnel quick inflation cuts off wind flow includes:
The outer frame is buried in the roadway wall, a storage cavity is arranged in the outer frame, and an opening communicated with the storage cavity is formed in the inner side of the outer frame; comprises a base, a vault and two supporting frames; the two support frames are arranged in parallel; the support frame is vertically fixed on the upper end surface of the base; two ends of the supporting frame are fixedly connected with the two supporting frames;
The partition assembly is provided with two partition assemblies which are symmetrically arranged in the outer frame and comprise an air bag, a guide shaft, a sliding block and a pull rod; the upper part of the air bag is fixedly connected with the vault, and one side of the air bag is fixedly connected with the support frame; the end part of the guide shaft is fixedly connected with the base; the axial center height of the guide shaft gradually decreases from the outer side to the inner side of the outer frame; the sliding block is slidably arranged on the guide shaft; the pull rod is vertically fixed on the upper end surface of the sliding block; the pull rod is fixedly connected with one side of the air bag, which is far away from the support frame; an air inlet pipe is fixedly arranged on the outer frame, one end of the air inlet pipe is communicated with the air bag, and the other end of the air inlet pipe is connected with an air supply end;
The control unit comprises a controller, an electromagnetic valve and a gas sensor; the electromagnetic valve is arranged on the air inlet pipe; the controller is fixed in the base; the electromagnetic valve and the gas sensor are electrically connected with the controller.
Preferably, the guide shaft of the partition assembly is provided with two guide shafts; the two guide shafts are arranged in parallel at intervals up and down; the sliding block is provided with a guide hole matched with the guide shaft.
Preferably, the inner side of the outer frame is fixedly provided with a horizontal extension edge.
Preferably, a hairbrush strip is arranged in the opening of the outer frame along the length direction of the opening, and the hairbrush strip is fixedly connected with the outer frame; the side face of the pull rod is in friction contact with the hairbrush strips.
Preferably, a clamping groove is formed in one end, far away from the supporting frame, of the pull rod; a strong magnetic stripe is fixedly arranged in the clamping groove; the strong magnetic strips of the two partition assemblies are mutually attracted.
Preferably, the air supply end is a compressed air pipeline arranged in the roadway.
Preferably, the air supply end is an air pump; the air pump is electrically connected with the controller.
Compared with the prior art, the utility model has the following beneficial effects:
The device can be buried in the tunnel wall, and does not occupy the space of the normal operation environment; a quick starting mechanism is provided, and the occurrence of a fire or explosion event is monitored through a gas sensor, so that a device is started in a very short time to quickly respond to an emergency; through the automatic sealing structure that the air supply end blows to the gasbag, the device can be rapidly unfolded and sealed the ventilation area of well lane or tunnel when starting, ensures that poisonous gas is effectively isolated, prevents to spread to other areas.
Drawings
FIG. 1 is a schematic view showing a structure in an airbag deployment state in the present utility model;
FIG. 2 is a schematic view showing the structure of the air bag in the contracted state according to the present utility model;
FIG. 3 is a schematic cross-sectional view of FIG. 1;
FIG. 4 is a schematic cross-sectional view of FIG. 2;
FIG. 5 is a schematic diagram of the connection relationship of the slider, guide shaft and pull rod in the present utility model;
Fig. 6 is a schematic view of the usage state of the present utility model in a roadway.
Wherein:
1. A vault; 2. an outer extension edge; 3. an electromagnetic valve; 4. an air inlet pipe; 5. a base; 6. a pull rod; 7. an air bag; 8. a support frame; 9. a gas sensor; 10. a brush strip; 11. strong magnetic strips; 12. a controller; 13. a guide shaft; 14. a slide block; 15. a compressed air pipeline; 16. roadway; 17. and a rubber belt conveyor.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.
As shown in fig. 1 to 6, a fire protection device for rapid inflation and air flow blocking of coal mine roadways and tunnels, comprising:
The outer frame is provided with a groove matched with the outer frame on the wall of the roadway 16, and is buried in the wall of the roadway 16, so that the space in the roadway 16 is not occupied; two ends of the rubber belt conveyor 17 in the roadway 16 are respectively provided with a fireproof device, and when harmful gas is generated in a fire disaster at the rubber belt conveyor 17, the rubber belt conveyor 17 is rapidly partitioned by the fireproof devices; the inner side of the outer frame is provided with an opening communicated with the storage cavity; comprises a base 5, a vault 1 and two supporting frames 8; the two support frames 8 are arranged in parallel; the supporting frame 8 is vertically fixed on the upper end surface of the base 5; two ends of the supporting frames 8 are fixedly connected with the two supporting frames 8;
The partition assembly is provided with two partition assemblies which are symmetrically arranged in the outer frame and comprise an air bag 7, a guide shaft 13, a sliding block and a pull rod 6; the upper part of the air bag 7 is fixedly connected with the vault 1, and one side of the air bag is fixedly connected with the support frame 8; the end part of the guide shaft 13 is fixedly connected with the base 5; the axial height of the guide shaft 13 gradually decreases from the outer side to the inner side of the outer frame; the sliding block is slidably arranged on the guide shaft 13; the pull rod 6 is vertically fixed on the upper end surface of the sliding block; the pull rod 6 is fixedly connected with one side of the air bag 7 far away from the support frame 8; during normal production operation, the air bag 7 is plugged into the storage cavity, and the pull rod 6 is received in the opening; an air inlet pipe 4 is fixedly arranged on the outer frame, one end of the air inlet pipe 4 is communicated with an air bag 7, and the other end is connected with an air supply end; when the air supply end inflates the air bag 7 through the air inlet pipe 4, the air bag 7 expands, and as the air bag 7 continues to expand, the air bag 7 expands to the outside from the opening, the pull rod 6 and the sliding block are pushed to move to the central position of the outer frame along the guide shaft 13 until the two pull rods 6 are mutually attached; because the cross section of the vault 1 is arc-shaped, the length of the air bag 7 arranged in the lifting object cavity is larger than the radius of the vault 1, and the air bag 7 is pulled downwards while being pulled inwards through the pull rod 6, so that the air bag 7 can be tightened at the middle part of the outer frame, the air bags 7 at two sides can be tightly attached, and the seepage amount of harmful gas from the gaps is reduced.
A control unit comprising a controller 12, a solenoid valve 3 and a gas sensor 9; the electromagnetic valve 3 is arranged on the air inlet pipe 4; the gas sensor 9 is disposed near the inflammable matter; the controller 12 is fixed in the base 5; the electromagnetic valve 3 and the gas sensor 9 are electrically connected with the controller 12; when the gas sensor 9 detects smoke and harmful gas in the gas, the controller 12 opens the electromagnetic valve 3 to inflate the air supply end into the air bag 7, and further the air bag 7 stretches to unseal and close the passage inside the outer frame.
Furthermore, the two guide shafts 13 of the partition assembly are arranged, so that the sliding of the sliding blocks on the guide shafts 13 is more stable, the situation that the support frame 8 is inclined does not occur, the size of gaps between the air bags 7 is reduced, and the effect of blocking the air flow is better; the two guide shafts 13 are arranged in parallel at intervals up and down; the slide block is provided with a guide hole matched with the guide shaft 13.
Further, the inner side of the outer frame is fixedly provided with the horizontal extension edge 2, and after the outer frame is buried in the tunnel wall, the extension edge 2 is attached to the tunnel wall, so that the amount of harmful gas flowing from a gap between the outer frame and the tunnel wall is reduced.
Further, a hairbrush strip 10 is arranged in the opening of the outer frame along the length direction of the opening, and the hairbrush strip 10 is fixedly connected with the outer frame; the side surface of the pull rod 6 is in friction contact with the hairbrush strip 10; the arrangement of the hairbrush strips 10 can reduce sundries entering the storage groove of the outer frame and prevent the sliding block from being blocked.
Further, a clamping groove is formed in one end, far away from the supporting frame 8, of the pull rod 6; a strong magnetic stripe 11 is fixedly arranged in the clamping groove; the strong magnetic strips 11 of the two partition assemblies are mutually attracted to enable the two air bags 7 to be tightly closed.
Further, the air supply end is an air pressure pipeline 15 arranged in the roadway, and air is supplied to the air bag 7 through the through branch pipe.
Further, the air supply end is an air pump; the air pump is electrically connected with the controller 12, and supplies air to the air bag 7 through the air pump.
When the device is used, the device is buried in a groove formed in a roadway, smoke and harmful gas are monitored on gas in the roadway through the gas sensor 9, when the harmful gas and the smoke are monitored, the controller 12 controls the electromagnetic valve 3 to be opened, the air bag 7 is inflated by blowing, the air bag 7 is inflated through the supporting frame 8 to guide the inflation of the air bag 7, the air bag 7 is tensioned, the air bags 7 on two sides are tightly closed, and the circulation of the gas is blocked.
Those skilled in the art will appreciate that while some embodiments described herein include some features contained in other embodiments but not others, combinations of features of different embodiments are equally meant to be within the scope of the utility model and form different embodiments. For example, in the above embodiments, those skilled in the art can use the above embodiments in combination according to known technical solutions and technical problems to be solved by the present utility model.
Claims (7)
1. A fire prevention device that is used for coal mine roadway and tunnel quick inflation to cut off the wind flow, its characterized in that includes:
The outer frame is buried in the roadway wall, a storage cavity is arranged in the outer frame, and an opening communicated with the storage cavity is formed in the inner side of the outer frame; comprises a base (5), a vault (1) and two supporting frames (8); the two supporting frames (8) are arranged in parallel; the supporting frame (8) is vertically fixed on the upper end surface of the base (5); two ends of the supporting frames (8) are fixedly connected with the two supporting frames (8);
The partition assembly is provided with two partition assemblies, is symmetrically arranged in the outer frame and comprises an air bag (7), a guide shaft (13), a sliding block and a pull rod (6); the upper part of the air bag (7) is fixedly connected with the vault (1), and one side of the air bag is fixedly connected with the support frame (8); the end part of the guide shaft (13) is fixedly connected with the base (5); the axial center height of the guide shaft (13) gradually decreases from the outer side of the outer frame to the inner side; the sliding block is slidably arranged on the guide shaft (13); the pull rod (6) is vertically fixed on the upper end surface of the sliding block; the pull rod (6) is fixedly connected with one side of the air bag (7) far away from the support frame (8); an air inlet pipe (4) is fixedly arranged on the outer frame, one end of the air inlet pipe (4) is communicated with the air bag (7), and the other end is connected with an air supply end;
The control unit comprises a controller (12), an electromagnetic valve (3) and a gas sensor (9); the electromagnetic valve (3) is arranged on the air inlet pipe (4); the controller (12) is fixed in the base (5); the electromagnetic valve (3) and the gas sensor (9) are electrically connected with the controller (12).
2. Fire protection device for rapid inflation and shut off of wind flows in coal mine roadways and tunnels according to claim 1, characterized in that the guiding shafts (13) of the shut off assembly are provided with two; the two guide shafts (13) are arranged in parallel at intervals up and down; the sliding block is provided with a guide hole matched with the guide shaft (13).
3. The fire protection device for rapid inflation and air flow interruption of coal mine roadways and tunnels according to claim 1, characterized in that the inner side of the outer frame is fixedly provided with a horizontal outer extension (2).
4. The fire protection device for rapid inflation and air flow interruption of coal mine roadways and tunnels according to claim 1, wherein a hairbrush strip (10) is arranged in the opening of the outer frame along the length direction of the opening, and the hairbrush strip (10) is fixedly connected with the outer frame; the side surface of the pull rod (6) is in friction contact with the hairbrush strip (10).
5. Fire protection device for rapid inflation and air flow interruption of coal mine roadways and tunnels according to any one of claims 1 to 4, characterized in that a clamping groove is provided on the end of the pull rod (6) remote from the support frame (8); a strong magnetic stripe (11) is fixedly arranged in the clamping groove; the strong magnetic strips (11) of the two partition assemblies are mutually attracted.
6. The fire protection device for rapid inflation and air flow interruption of coal mine roadways and tunnels as claimed in claim 5, wherein the air supply end is a compressed air pipeline (15) arranged in the roadway.
7. The fire protection apparatus for rapid inflation and air flow interruption of coal mine roadways and tunnels of claim 5, wherein the air supply end is an air pump; the air pump is electrically connected with the controller (12).
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221299252U true CN221299252U (en) | 2024-07-09 |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |