Extinguishing and explosion suppressing device for laneway area

Abstract

The embodiment of the utility model provides a laneway area fire extinguishing and explosion suppression device which comprises a tank body used for loading nitrogen and superfine dry powder; the gas generator is arranged in the tank body and is used for exciting the solid bag to be converted into a gas state so as to generate high pressure; the aluminum baffle is arranged at the outlet of the tank body in a sealing manner and is used for breaking to release fire extinguishing substances when the internal pressure difference is large enough; the fastening ring surrounds and fixes the aluminum baffle and is used for enhancing the sealing performance of the edge of the aluminum baffle; the waterproof aviation socket is connected to the exterior of the explosion suppressor and used for receiving a starting signal to control the gas generator to start; the nozzle is connected to the lower part of the tank body and is used for spraying nitrogen and superfine dry powder; the hanging frame is used for fixing the tank body and adjusting the angle of the explosion suppressor; wherein the gas generator is communicated with the internal space of the tank body. According to the scheme, the fire extinguishing effect can be improved, and the effective fire extinguishing range can be expanded.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fire engineering and safety protection, and particularly relates to a mine shaft area fire extinguishing and explosion suppression device. BACKGROUND

[0002] The mine shaft area fire extinguishing and explosion suppression device is a fire-fighting equipment specially designed for tunnel environment, mainly used for quickly extinguishing fire and suppressing explosion risk. Its core function is to reduce the energy density and oxygen concentration of the fire area by releasing fire extinguishing agent. However, the device still faces the technical challenge of how to improve the fire extinguishing effect and expand the effective fire extinguishing range. This problem limits its application efficiency in complex tunnel environment, especially when facing long-distance or large-space fire, the existing fire extinguishing range may not completely cover the fire spread area, thereby affecting the overall fire extinguishing performance and safety. SUMMARY

[0003] Therefore, the mine shaft area fire extinguishing and explosion suppression device provided by the embodiments of the present application at least partially solves the problems in the prior art.

[0004] The mine shaft area fire extinguishing and explosion suppression device provided by the embodiments of the present application comprises:

[0005] A tank body for loading nitrogen and superfine dry powder;

[0006] A gas generator arranged in the tank body for converting solid-state packages into gaseous state to generate high pressure;

[0007] An aluminum baffle sealingly arranged at the outlet of the tank body for breaking to release fire extinguishing agent when the internal pressure difference is large enough;

[0008] A fastening ring surrounding and fixing the aluminum baffle for enhancing the sealing performance of the edge of the aluminum baffle;

[0009] A waterproof aviation socket connected to the outside of the explosion suppression device for receiving a starting signal to control the starting of the gas generator;

[0010] A nozzle connected below the tank body for spraying nitrogen and superfine dry powder;

[0011] A hanger for fixing the tank body for adjusting the angle of the explosion suppression device;

[0012] The gas generator is in communication with the internal space of the tank body, and the waterproof aviation socket provides a starting signal to the gas generator to generate pressure to break the aluminum baffle.

[0013] In one specific embodiment, the tank body adopts a non-pressure storage design, and its internal pressure is equal to the atmospheric pressure under normal circumstances.

[0014] In one specific embodiment, the aluminum baffle has a thickness of 1-3 mm, which can be completely broken under high pressure when the solid package is converted into gas state to release nitrogen and superfine dry powder.

[0015] In one specific embodiment, the nozzle has a diameter of 20-30 mm to enable uniform spraying of the fire extinguishing substance.

[0016] In one specific embodiment, the hanger can be adjusted to an angle ranging from 0° to 90° to adapt to the requirements of different fire extinguishing areas.

[0017] In one specific embodiment, the overall weight of the explosion suppressor is not more than 25 kg, and the volume is not more than 0.5 m 3 .

[0018] In one specific embodiment, the waterproof aviation socket is capable of dustproof and waterproof.

[0019] In one specific embodiment, the gas generator has a spraying lag time of not more than 15 ms after receiving the starting signal.

[0020] In one specific embodiment, the outer wall of the tank body is smooth, wrinkle-free and scratch-free, and has sealing property and instantaneous high pressure resistance.

[0021] The well and roadway area fire extinguishing explosion suppressor provided by the embodiments of the present disclosure comprises: a tank body for loading nitrogen and superfine dry powder; a gas generator arranged in the tank body for triggering the solid package to be converted into gas state to generate high pressure; an aluminum baffle sealingly arranged at the outlet of the tank body for being broken to release the fire extinguishing substance when the internal pressure difference is large enough; a fastening ring surrounding and fixing the aluminum baffle for enhancing the sealing property of the edge of the aluminum baffle; a waterproof aviation socket connected to the outside of the explosion suppressor for receiving a starting signal to control the starting of the gas generator; a nozzle connected to the lower part of the tank body for spraying nitrogen and superfine dry powder; and a hanger for fixing the tank body and adjusting the angle of the explosion suppressor, wherein the gas generator is in communication with the internal space of the tank body, and the waterproof aviation socket provides the starting signal to the gas generator to generate pressure to break the aluminum baffle. Through the scheme of the embodiments of the present disclosure, the problem of how to improve the fire extinguishing effect and expand the effective fire extinguishing range can be solved. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the embodiments of the present disclosure, the following will briefly introduce the drawings needed in the embodiments. It should be understood that the following drawings only show some embodiments of the present disclosure, and therefore should not be considered as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0023] Figure 1 This is a schematic diagram of the structure of a fire extinguishing and explosion suppression device for tunnel areas according to the present invention;

[0024] Figure 2 This is a front sectional view of the tank body in the fire extinguishing and explosion suppression device for tunnel areas described in this utility model;

[0025] Figure 3 This utility model describes a fire extinguishing and explosion suppression device for tunnel areas. Figure 2 Enlarged view of point A in the middle;

[0026] Figure 4 This utility model describes a fire extinguishing and explosion suppression device for tunnel areas. Figure 1 Enlarged view of point B in the middle.

[0027] In the diagram: 1. Tank; 2. Gas generator; 3. Aluminum baffle; 4. Fastening ring; 5. Waterproof aviation socket; 6. Nozzle; 7. Hanger Detailed Implementation

[0028] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this application. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0029] like Figure 1 As shown, a fire extinguishing and explosion suppression device for tunnel areas according to this application includes a tank 1, a gas generator 2, an aluminum baffle 3, a fastening ring 4, a waterproof aviation socket 5, a nozzle 6, and a bracket 7. The following describes each component and its function in detail.

[0030] The explosion suppressor's tank 1 is a sealed container designed to hold extinguishing agents such as nitrogen and ultrafine dry powder. It provides a closed environment for storing and generating high-pressure gaseous substances. The ultrafine dry powder mixed with air enhances the extinguishing effect and serves as a warning to evacuate to prevent asphyxiation. The tank 1 is made of high-pressure resistant material, ensuring its stability under high pressure and preventing accidental rupture or leakage due to excessive pressure. Furthermore, the interior is finely machined to ensure a smooth, bump-free surface, preventing unnecessary friction or blockage during use.

[0031] The gas generator 2 is arranged in the inner cavity of the tank body 1, as the core component of the triggering system, responsible for converting the fixed state of matter into high temperature and high pressure gas. Through the use of solid propellant combustion principle or electrothermal chemical reaction mechanism and other means to realize the rapid change from solid to gas. Once receiving the trigger command from the outside, the energy unit inside will be activated to quickly heat and expand the medium around it to achieve the purpose of increasing the internal pressure. For example, by installing a special specification industrial standard electric explosion detonator device with high efficiency energy conversion characteristics as the starting module, and cooperating with specially formulated fuel particles to complete the entire gasification process.

[0032] The aluminum baffle 3 is arranged to cover the opening at the outlet end of the tank body 1, and normally maintains a fully closed effect. In order to meet the requirements of sealing performance and controllable hole breaking effect in actual application, an aluminum alloy sheet with light weight but good mechanical properties and easy to break and separate according to the set pressure threshold is carefully cut. When the gas pressure in the tank gradually rises until it exceeds the predetermined safety limit, the thin layer of metal will accurately break along the pre-stressed lines to allow all the mixed contents stored inside to be shot out at high speed to form a wide-angle diffusion cloud covering the target fire area.

[0033] The fastening ring 4 surrounds and tightly compresses the aluminum baffle 3 around the peripheral part, further enhancing its initial bonding force to prevent any form of unplanned leakage from occurring to the lowest level. It is usually made of steel with higher strength and better durability, with a double-layer reinforced buckle locking mechanism design to ensure that it can still function stably and effectively even in extreme shock and vibration environments.

[0034] The waterproof aviation socket 5 is connected to the designated reserved interface on the surface of the tunnel fire extinguishing and explosion suppression equipment, which is one of the key electronic communication components for conducting and receiving electrical signals. Its main structure includes an insulating sleeve wrapped tightly with corrosion-resistant materials and a precisely arranged and distributed multi-contact pin cluster assembly. When the monitoring probe detects the fire signal feedback, it immediately transmits accurate and effective start commands to the corresponding drive circuit inside to start the next stage of operation sequence program and continue to develop forward.

[0035] The nozzle 6 is a specially shaped discharge window part located at the corresponding predetermined position of the tank body 1, which is opened instantly after the aluminum baffle 3 is broken by the impact of the strong positive and negative pressure difference. By optimizing the geometric cross-section design to guide and adjust the direction angle, range density and other parameter indicators of the jet material, it ensures that all the fire extinguishing elements released can be more fully and evenly dispersed to cover as wide an area as possible in every tiny corner of the protected space without leaving any gaps or omissions.

[0036] The rack 7 is used to firmly attach the entire combination mentioned above to the pre-selected optimal deployment support object while allowing limited range of moderate adjustment of the tilt posture state to better adapt to different specific operational requirements under complex environmental conditions.

[0037] Regarding the way of solving the technical problems of the above patent features, the well and roadway area fire extinguishing and explosion suppression device of the present application adopts a regional full-coverage fire extinguishing method, which rapidly expels oxygen in the protection area by generating a large amount of nitrogen gas to prevent combustion. The filled superfine dry powder can on the one hand allow the on-site personnel to perceive the fire extinguishing signal at the first time and immediately evacuate to prevent personnel from being unable to distinguish the nitrogen gas caused asphyxiation injury, and on the other hand, the specific gravity of nitrogen gas and air is 28:29, so if single nitrogen gas is used for fire extinguishing, it is difficult for the nitrogen gas to diffuse to the root of the fire source, and the fire extinguishing effect is limited. The uniform mixture of nitrogen gas and superfine dry powder has a higher specific gravity than air, can rapidly cover the root of the fire source, cut off the combustion condition, and quickly extinguish the fire. This method significantly improves the fire extinguishing effect and greatly widens the effective control area, thereby comprehensively optimizing the overall comprehensive fire extinguishing effect.

[0038] As shown in Figure 2 In one embodiment, the tank body 1 of the well and roadway area fire extinguishing and explosion suppression device of the present application adopts a non-pressure storage design, and the internal pressure is equal to the atmospheric pressure in the normal state. This design ensures that the device is in a state without additional pressure storage before starting, thereby avoiding the safety hazards that may be caused by long-term high-pressure storage, and facilitating the installation and maintenance operation of the explosion suppression device. This non-pressure storage design also simplifies the sealing requirements of the device, making the entire structure more easily meet the environmental adaptability requirements in actual use. In the normal standby state, the device relies on the combination of nitrogen gas and superfine dry powder with other components to complete the system function layout, and after the gas generator 2 excites the solid package to generate gaseous substances, an internal high pressure is formed to realize the subsequent spraying process.

[0039] Specifically, to realize the above-mentioned non-pressure storage design, the tank body 1 is designed to ensure that it is in pressure balance with the external environment in the unstarted state, and only when the gas generator 2 is activated and gas is generated, a pressure difference relative to the atmosphere appears in the tank. For example, in actual technical implementation, the gas generator 2 can be completely isolated from the generated gaseous substances before starting, and the sealing performance of the aluminum baffle 3 is used in cooperation with the fastening ring 4 to not retain additional pressure storage in the unactivated state. In addition, the waterproof aviation socket 5 triggers the gas generator 2 to work after accessing the starting signal, and further breaks the aluminum baffle 3 by the generated high pressure, thereby opening the spray port 6 to perform effective spraying operation. At this time, the characteristics of the non-pressure storage are obvious, and the entire process starts from the state without pressure accumulation and quickly enters the working stage of high-pressure driving.

[0040] As shown in Figure 1As shown, in one embodiment, the aluminum baffle 3 of the mine roadway area fire extinguishing and explosion suppression device of the present application is a metal structural component with a thickness ranging from 0.1 to 0.3 mm. The aluminum baffle 3 is arranged at the outlet of the tank body 1 as a sealing component to prevent leakage of the contents in the inactivated state. The aluminum baffle 3 is surrounded and fixed by the fastening ring 4, and the connection between the aluminum baffle 3 and the tank body 1 ensures high sealing performance, preventing the escape of nitrogen and ultra-fine dry powder in the tank body 1 in the non-working state. When the gas generator 2 is activated to generate a predetermined high pressure, the aluminum baffle 3 will completely rupture due to its special thickness design when the internal and external pressure difference reaches a certain level, thereby releasing the fire extinguishing material.

[0041] Specifically, the aluminum baffle 3 with the required thickness can be produced by a precision machining process, and a fastening ring 4 with suitable mechanical properties can be used to ensure the stability and sealing performance after installation. In addition, the installation position of the aluminum baffle 3 on the tank body 1 needs to be reasonably determined to ensure that this position corresponds to the final nozzle 6 position, so that the aluminum baffle 3 can smoothly release the contents to the target area after rupture. The assembly of the entire device should ensure accurate fitting dimensions between components to avoid affecting the function due to machining errors or assembly problems.

[0042] As shown, Figures 1-3 In one embodiment, the nozzle 6 of the mine roadway area fire extinguishing and explosion suppression device of the present application is designed with a diameter ranging from 20 to 30 mm, which is optimized according to the distribution characteristics of the fire extinguishing material under different pressure conditions. In order to ensure that the fire extinguishing material can be uniformly sprayed to the specified area, the selection of the diameter of the nozzle 6 needs to consider factors such as gas flow velocity, dry powder diffusion granularity, and coverage range. Within this specified range, the flow state of the fire extinguishing material can remain stable, effectively avoiding blockage caused by too small a diameter and reducing the spraying efficiency caused by too large a diameter.

[0043] In addition, during installation, the nozzle 6 is located at the corresponding position of the outlet of the tank body 1, and this position is designed to enable it to immediately enter the working state at the moment of rupture of the aluminum baffle 3. In order to meet the diameter requirement, the processing technology of the nozzle 6 needs to be strictly controlled, while ensuring the coaxial connection with the tank body 1, thereby maintaining the stability and sealing performance of the overall structure.

[0044] For example, the nozzle 6 made of metal or high-strength alloy material with the above-mentioned diameter range can be manufactured by mechanical machining, and then fixed at the outlet of the tank body 1 by welding or threaded connection. In order to ensure the precision requirement and assembly effect, precise measuring instruments may be used during the manufacturing process to determine the size deviation and adjust the assembly process. Specifically, the best diameter value and installation scheme can be finally confirmed through multiple verification experiments to achieve the design expectation of uniform spraying.

[0045] As shown, Figure 1As shown, in one embodiment, the hanger 7 of the well-tunnel area fire extinguishing explosion suppressor of the present application adjusts its own angle to meet the needs of different fire extinguishing areas. The hanger 7, as the core installation component of the explosion suppressor, is responsible for fixing the tank body 1 and allowing the inclination angle of the device to be adjusted. The hanger 7 mainly consists of a connection structure and a functional component that can adapt to a certain range of angle changes, which is directly or indirectly combined with the tank body 1 of the explosion suppressor body, thereby providing flexible installation conditions for the overall device. The hanger 7 can achieve an angle range adjustment of 0° to 90°, so that the nozzle 6 can adjust the direction according to different regional positions, ensuring that the fire extinguishing material coverage is more accurate.

[0046] Specifically, this angle adjustment can be achieved through a rotatable hinge structure installed on the hanger 7, cooperating with a locking bolt or similar fastening component, so that the selected angle can be stably maintained after adjustment is completed. For example, during installation, the hanger 7 can be pre-connected to the tunnel wall or a specific support structure, and then the hinge and locking mechanism described above are used to achieve fine adjustment and fixation of the angle. In this way, the function of the hanger 7 is closely combined with the overall design of the explosion suppressor, together constituting a device foundation that can adapt to complex application environments.

[0047] As shown, Figure 1 In one embodiment, the overall weight of the well-tunnel area fire extinguishing explosion suppressor of the present application is designed to be no more than 25 kg, and the volume is no more than 0.05 m 3 . This lightweight and small design makes the device more convenient for transportation, storage and deployment in narrow spaces in tunnels. In order to achieve this goal, an efficient and compact design strategy is adopted. First, by optimizing the layout of the tank body 1 and its internal components, the redundant space between various parts is minimized. At the same time, high-strength but low-density materials are used to manufacture the tank body 1 and other key components, significantly reducing the overall weight of the explosion suppressor while ensuring high-pressure resistance.

[0048] Secondly, the function and size of the gas generator 2 are precisely matched, which reduces the volume on the basis of meeting the excitation pressure requirement, ensuring reasonable integration with the internal space of the tank body 1. When the aluminum baffle 3 and the fastening ring 4 jointly constitute the outlet sealing structure, lightweight high-strength materials are selected to manufacture these components to balance the sealing performance and weight reduction requirements.

[0049] For example, this feature can be achieved by the following technical means: selecting an aluminum alloy material with moderate wall thickness to make the tank 1, and combining three-dimensional simulation modeling to optimize the mounting position and support method of the hanger 7; at the same time, the waterproof aviation socket 5 is fixed on the tank 1, which not only ensures the reliability of signal connection, but also shortens the length of the wire as much as possible and compresses the occupied space; the nozzle 6 is located at the corresponding position of the pre-set breaking zone at the rear side of the aluminum baffle 3, and the overall structure is compact and orderly. Specifically, the connection form of each component adopts standardized and quick assembly process, and the integrated molding is completed without adding additional auxiliary devices.

[0050] As shown in Figure 4 In one embodiment, the waterproof aviation socket 5 of the well and roadway area fire extinguishing and explosion suppression device of the present application is installed at an external position of the explosion suppression device, which is used to realize reliable reception of external starting signal and transmission to the gas generator 2. The socket has the design feature of IP67 protection level, which can effectively prevent dust and adapt to complex water environment, including short-term immersion. The realization of this protection level not only ensures the normal operation of the device in high humidity or water splash environment, but also avoids signal transmission failure caused by external dust or water intrusion. Specifically, the waterproof aviation socket 5 adopts a multiple sealing structure, and the shell is tightly connected through thread connection and rubber ring, and the independent packaging design is added in the pin part to further improve the overall protection capability.

[0051] For example, the waterproof aviation socket 5 can be connected to the specific interface position outside the explosion suppression device by screw fastening, and at the same time, it forms an electrical communication relationship with the gas generator 2 inside the tank 1. From a technical point of view, this feature can be achieved by selecting IP67 standard material to manufacture the socket shell and optimizing the internal terminal structure. This makes the waterproof aviation socket 5 always maintain efficient and stable starting signal transmission function when working with the whole machine system.

[0052] As shown in Figure 2 In one embodiment, the gas generator 2 of the well and roadway area fire extinguishing and explosion suppression device of the present application has rapid response capability after receiving the starting signal, and the spraying lag time is not more than 15ms. This means that after the waterproof aviation socket 5 transmits the starting signal to the gas generator 2, the gas generator 2 can start working in a very short time by converting the solid package into gas to generate high pressure. In addition, the whole spraying completion time of the gas generator 2 is not more than 150ms. This time range not only embodies the efficiency, but also ensures that the key emergency response window will not be missed during the fire extinguishing and explosion suppression process.

[0053] This feature requires the gas generator 2 to ensure a fast response time in its structural design. For example, rapid ignition can be achieved by using an electrothermal or explosive triggering device, and the connection between the gas generator 2 and the internal space of the tank 1 should be optimized to reduce flow resistance. To achieve the aforementioned time control targets, the gas generator 2 needs to be precisely installed at the center of the tank 1 so that the high-pressure gas can be rapidly distributed inside and act on the surface of the aluminum baffle 3, causing the aluminum baffle 3 to rupture accurately under the set pressure. At the same time, the gas generator 2 should maintain a stable connection with the waterproof aviation socket 5 to ensure reliability and consistency in the signal transmission process.

[0054] Specifically, a high-sensitivity trigger module can be used in conjunction with a low-inertia airflow path to ensure the working efficiency of the gas generator 2. At the same time, by combining the material properties of the aluminum baffle 3 and adjusting the fixing method of the fastening ring 4 according to the installation angle, the sealing and rupture timing can be further ensured to be precise and controllable.

[0055] like Figure 1 As shown, in one embodiment, the outer wall surface of the tank 1 of the mine shaft area fire extinguishing and explosion suppression device of this application is designed to be smooth, avoiding any wrinkles or scratches. This design not only ensures the overall flatness of the tank 1's appearance but also improves the product's processing quality and service life. Regarding sealing, special requirements for the materials and manufacturing process of the tank 1 ensure extremely high airtightness, enabling long-term storage of extinguishing media such as nitrogen and ultrafine dry powder without leakage. Furthermore, the tank 1 needs to maintain structural stability even when subjected to instantaneous high-pressure impacts internally; this is one of the key technological foundations for its functionality. In this way, the tank 1 can remain intact under the intense pressure generated by the conversion of high-pressure gas or solids, ensuring that the extinguishing material is released from the nozzle 6 according to preset conditions.

[0056] For example, the above-mentioned characteristic requirements can be met by selecting high-strength alloy steel materials and combining them with heat treatment processes. Specifically, during the forming process, precision machining technology can be used to eliminate defects on the outer wall, and high-vacuum welding methods can be used to improve the overall sealing performance of the tank 1. At the same time, when assembling the gas generator 2 and fixing the aluminum baffle 3, it is necessary to ensure that the installation process does not scratch or damage the outer wall of the tank 1, so as to maintain the integrity of the surface of the component and the consistency of its functionality.

[0057] In actual operation, when the device is in use, the waterproof aviation socket 5 receives an external starting signal and transmits it to the gas generator 2, which is then started and converts the stored solid package into a large amount of nitrogen gas, which enters the inside of the explosion suppressor through the gas guide holes on the surface of the gas generator 2, blows away the superfine dry powder filled in the inside of the explosion suppressor, and makes the superfine dry powder and nitrogen gas uniformly mixed. As more and more nitrogen gas is generated, high pressure is generated in the inside of the explosion suppressor, forming a pressure difference between the inside and outside of the explosion suppressor, and finally causing physical explosion to break through the aluminum baffle 3. After the mixture of nitrogen gas and superfine dry powder is sprayed out through the spray port 6, the oxygen in the protected space can be quickly discharged, achieving the purpose of regional full-coverage fire extinguishing. In the whole process, the fastening ring 4 ensures the sealing between the aluminum baffle 3 and the tank body 1, and the hanger 7 stably supports the whole device and allows the installation angle of the explosion suppressor to be adjusted to adapt to different use requirements.

[0058] The specific embodiments described above further illustrate the purposes, technical solutions, and beneficial effects of the embodiments of the present disclosure. It should be understood that the above description is only a specific embodiment of the present disclosure and is not intended to limit the protection scope of the present disclosure. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the embodiments of the present disclosure should be included in the protection scope of the embodiments of the present disclosure.

Claims

1. A mine roadway area fire and explosion suppression unit, characterised in that, The application relates to a nitrogen and ultra-fine dry powder explosion suppression device. The device comprises: a tank (1) for loading nitrogen and ultra-fine dry powder; a gas generator (2) arranged in the tank (1) for triggering solid-state package into gaseous state to generate high pressure; an aluminum baffle (3) sealingly arranged at the outlet of the tank (1) for breaking to release the extinguishing substance when the internal pressure difference is large enough; a fastening ring (4) surrounding and fixing the aluminum baffle (3) for enhancing the sealing performance of the edge of the aluminum baffle (3); a waterproof aviation socket (5) connected to the outside of the explosion suppressor for receiving a starting signal to control the starting of the gas generator (2); a nozzle (6) connected to the lower part of the tank (1) for spraying nitrogen and ultra-fine dry powder; a hanger (7) for fixing the tank (1) and adjusting the angle of the explosion suppressor.

2. A mine shaft area fire and explosion suppression device according to claim 1, characterized in that: The gas generator (2) is in communication with the internal space of the tank (1); the waterproof aviation socket (5) provides the starting signal to the gas generator (2) to generate pressure to break the aluminum baffle (3).

3. A mine entry area fire and explosion suppression device according to claim 1, characterized in that: The tank (1) adopts a non-pressure storage type design, and the internal pressure is equal to the atmospheric pressure in normal state.

4. A mine entry area fire and explosion suppression device according to claim 1, characterized in that: The thickness of the aluminum baffle (3) is 0.1-0.3 mm, and the aluminum baffle (3) can be completely broken under the high pressure generated by the transformation of the solid-state package into gaseous state to release nitrogen and ultra-fine dry powder.

5. A mine entry area fire and explosion suppression device according to claim 1, characterized in that: The diameter of the nozzle (6) is 20-30 mm, so that the extinguishing substance can be uniformly sprayed.

6. A mine entry area fire and explosion suppression device according to claim 1, characterized in that: The overall weight of the explosion suppressor does not exceed 25 kg, and the volume does not exceed 0.05 m 3 .

7. A mine entry area fire and explosion suppression device according to claim 1 wherein: The angle of the hanger (7) can be adjusted in the range of 0-90 degrees to adapt to the requirements of different extinguishing areas.

8. A mine entry area fire and explosion suppression device according to claim 1, characterized by: The waterproof aviation socket (5) is dustproof and waterproof.

9. A mine entry area fire and explosion suppression device according to claim 1 wherein: The spraying lag time of the gas generator (2) after receiving the starting signal is not more than 15 ms. The outer wall of the tank (1) is smooth, free of wrinkles and scratches, and has sealing performance and instantaneous high pressure resistance.

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