Automatic explosion suppression device for underground coal mine

Abstract

The utility model relates to the technical field of safety fire fighting equipment, and discloses a coal mine underground automatic explosion suppression device which comprises a shock wave mechanism, a powder storage cabin is installed on one side of the shock wave mechanism, a housing is fixedly connected to one side of the powder storage cabin, and inlets and outlets are formed in the top and the bottom of the powder storage cabin. According to the automatic explosion suppression device for the underground coal mine, the sealing cover is screwed out from the outer side of the threaded pipeline, so that the filling rod is drawn out from the inlet and outlet, and at the moment, dry powder in the shock wave mechanism can be discharged downwards through the inlet and outlet in the bottom; a worker can add a flame retardant into the powder storage cabin through an inlet and outlet in the top, and after a sealing cover is reset again, a filling rod is arranged in the inlet and outlet, so that the worker can replace the flame retardant in the powder storage cabin without disassembling the shock wave mechanism and the powder storage cabin, and the worker can maintain the device regularly and conveniently; and the flame retardant is ensured to be in an available period.

Description

Technical Field

[0001] This utility model relates to the field of safety and fire protection equipment technology, and in particular to an automatic explosion-proof device for underground coal mines. Background Technology

[0002] Automatic explosion-proof devices are innovative safety equipment used in underground coal mine environments. Their main function is to automatically activate the explosion-proof mechanism when the concentration of explosive gases such as methane exceeds the standard, in order to prevent explosion accidents. Through a series of sophisticated sensors and control units, the device can monitor the composition and concentration of underground gases in real time. Once an anomaly is detected, it immediately takes measures, such as activating the explosion-proof curtain or spraying flame retardants, thereby effectively isolating potential ignition sources and explosive areas, ensuring the safety of miners and the normal operation of the mine.

[0003] Traditional automatic explosion-proof devices often experience malfunctions after prolonged use, as the stored oxidizer expires and becomes unusable. Replacing the oxidizer requires disassembling the storage compartment, removing the expired oxidizer, and adding new oxidizer. However, since the explosion-proof device is installed on the inner wall of the mine at a certain height above the ground, disassembly is restricted by height, making the entire process extremely difficult and cumbersome. This not only makes the regular maintenance of the explosion-proof device time-consuming and complex but also affects the efficiency of the maintenance work. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the existing technology has the disadvantage of not being convenient to replace the combustion accelerant in the storage compartment. To this end, we propose an automatic explosion-proof device for underground coal mines.

[0005] To achieve the above objectives, this application adopts the following technical solution: an automatic explosion-proof device for underground coal mines, including a shock wave mechanism, a powder storage chamber installed on one side of the shock wave mechanism, a cover fixedly connected to one side of the powder storage chamber, inlets and outlets opened at the top and bottom of the powder storage chamber, threaded pipes fixedly connected to the top and bottom of the powder storage chamber, a sealing cap threadedly connected to the surface of the threaded pipe, a filling rod fixedly connected to the bottom of the sealing cap, and the filling rod placed on the inner wall of the inlet and outlet.

[0006] Preferably, a sealing ring is fixedly connected to the inner wall of the threaded pipe, and the surface of the sealing ring abuts against one end of the threaded pipe.

[0007] Preferably, one side of the filling rod is adapted to the inner wall structure of the powder storage chamber.

[0008] Preferably, the inner diameter of the powder storage chamber gradually decreases from left to right, and the inlet and outlet are located at the thicker end of the powder storage chamber.

[0009] Preferably, an extension rod is fixedly connected to both sides of the powder storage chamber, and a baffle is fixedly connected to the other end of the extension rod.

[0010] Preferably, the top of the powder storage chamber is fixedly connected to two annular plates, the surface of the annular plates is provided with several through holes, the interior of the annular plates is slidably connected to a mounting frame, and bolts are inserted and connected to the bottom of both ends of the mounting frame.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] In this invention, by unscrewing the sealing cap from the outside of the threaded pipe, the filling rod is pulled out from inside the inlet and outlet. At this time, the dry powder inside the shock wave mechanism can be discharged downward through the bottom inlet and outlet. After resetting the bottom sealing cap, the operator can add flame retardant into the powder storage chamber through the top inlet and outlet. After resetting the sealing cap again, the filling rod is placed inside the inlet and outlet. This allows the operator to replace the combustion aid inside the powder storage chamber without disassembling the shock wave mechanism and the powder storage chamber, making it easier for the operator to perform regular maintenance on this device and ensuring that the flame retardant is within its usable period. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the main exploded structure of this utility model;

[0015] Figure 3 This is a sectional view of the vertical cross-section of this utility model.

[0016] Legend: 1. Shock wave mechanism; 2. Powder storage chamber; 3. Cover; 4. Inlet and outlet; 5. Threaded pipe; 6. Sealing cover; 7. Filling rod; 8. Sealing ring; 9. Extension rod; 10. Baffle; 11. Annular plate; 12. Through hole; 13. Mounting bracket; 14. Bolt. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0018] Reference Figure 1 - Figure 3As shown, this utility model provides a technical solution: an automatic explosion-proof device for underground coal mines, including a shock wave mechanism 1, a powder storage chamber 2 installed on one side of the shock wave mechanism 1, a cover 3 fixedly connected to one side of the powder storage chamber 2, inlets and outlets 4 on the top and bottom of the powder storage chamber 2, threaded pipes 5 fixedly connected to the top and bottom of the powder storage chamber 2, a sealing cover 6 threadedly connected to the surface of the threaded pipe 5, and a filling rod 7 fixedly connected to the bottom of the sealing cover 6. The filling rod 7 is placed on the inner wall of the inlet and outlet 4. By unscrewing the sealing cover 6 from the outside of the threaded pipe 5, the filling rod 7 is pulled out from inside the inlet and outlet 4. At this time, the dry powder inside the shock wave mechanism 1 can be discharged downward through the bottom inlet and outlet 4. After the bottom sealing cover 6 is reset, the operator can add flame retardant to the powder storage chamber 2 through the top inlet and outlet 4. After resetting the sealing cover 6 again, the filling rod 7 is placed inside the inlet and outlet 4. This allows the operator to replace the combustion aid inside the powder storage chamber 2 without disassembling the shock wave mechanism 1 and the powder storage chamber 2, making it easier for the operator to perform regular maintenance on this device and ensure that the flame retardant is within its usable period.

[0019] Reference Figure 2 As shown in this embodiment: a sealing ring 8 is fixedly connected to the inner wall of the threaded pipe 5. The surface of the sealing ring 8 abuts against one end of the threaded pipe 5. The sealing ring 8 is placed at the contact point between the sealing cover 6 and the threaded pipe 5. The soft silicone of the sealing ring 8 fills and seals the connection gap between the sealing cover 6 and the threaded pipe 5, ensuring the airtightness of the above structure and the powder storage chamber 2, preventing air leakage from affecting the sealing of the powder storage chamber 2 and reducing the spraying distance of the combustion accelerant.

[0020] Reference Figure 2 and Figure 3 As shown in this embodiment: one side of the filling rod 7 is adapted to the inner wall structure of the powder storage chamber 2. By matching the shape and structure of the inner wall of the powder storage chamber 2 with one side of the filling rod 7, it is ensured that the filling rod 7 fills the inside of the inlet and outlet 4. At the same time, after the filling rod 7 is placed on the inner wall of the inlet and outlet 4, the inner wall structure of the powder storage chamber 2 is maintained, and the opening of the inlet and outlet 4 is prevented from affecting the structural shape of the powder storage chamber 2.

[0021] Reference Figure 2 and Figure 3 As shown in this embodiment: the inner diameter of the powder storage chamber 2 gradually decreases from left to right. The inlet and outlet 4 are located at the thicker end of the powder storage chamber 2. Through the ingenious design of the inlet and outlet 4, when the bottom inlet and outlet 4 is replaced with the combustion accelerator, the combustion accelerator can flow out smoothly through the inclined angle of the inlet and outlet 4. At the same time, when the top inlet and outlet 4 is filled with materials, since the top inlet and outlet 4 is located at the high point of the powder storage chamber 2, the addition of the combustion accelerator will not cause a filling gap at one end of the powder storage chamber 2.

[0022] Reference Figure 1 and Figure 2As shown in this embodiment: extension rods 9 are fixedly connected to both sides of the powder storage chamber 2, and baffles 10 are fixedly connected to the other end of the extension rods 9. Through the extension rods 9 and baffles 10, the baffles 10 are positioned at the top of the connection between the powder storage chamber 2 and the cover 3, thus shielding and protecting the top of the cover 3. This prevents water from the mine wall from dripping onto the connection between the cover 3 and the powder storage chamber 2 after the device is installed inside the mine, which could cause corrosion damage over time.

[0023] Reference Figure 1 and Figure 2 As shown in this embodiment: the top of the powder storage chamber 2 is fixedly connected to two annular plates 11. Several through holes 12 are opened on the surface of the annular plates 11. An installation frame 13 is slidably connected inside the annular plates 11. Bolts 14 are inserted and connected to the bottom of both ends of the installation frame 13. After the workers fix the installation frame 13 to the inner wall of the mine, the installation frame 13 can move up and down inside the annular plates 11 to adjust the position distance between the installation frame 13 and the powder storage chamber 2 through the sliding connection between the installation frame 13 and the annular plates 11. Then, the bolts 14 are inserted into the through holes 12 to penetrate the bottom of the installation frame 13, thereby fixing the position of the installation frame 13 inside the annular plates 11. This allows the workers to adjust the position distance between the installation frame 13 and the powder storage chamber 2 according to actual needs.

[0024] Working principle: By unscrewing the sealing cap 6 from the outside of the threaded pipe 5, the filling rod 7 is pulled out from inside the inlet / outlet 4. At this time, the dry powder inside the shock wave mechanism 1 can be discharged downwards through the bottom inlet / outlet 4. After resetting the bottom sealing cap 6, the operator can add flame retardant into the powder storage chamber 2 through the top inlet / outlet 4. Resetting the sealing cap 6 again allows the filling rod 7 to be placed inside the inlet / outlet 4. This allows the operator to replace the combustion aid inside the powder storage chamber 2 without disassembling the shock wave mechanism 1 and the powder storage chamber 2, making it easier for the operator to perform regular maintenance on this device. The flame retardant is within its usable period. A sealing ring 8 is placed at the contact point between the sealing cap 6 and the threaded pipe 5. The soft silicone of the sealing ring 8 fills and seals the gap between the sealing cap 6 and the threaded pipe 5, ensuring the airtightness of the above structure and the powder storage chamber 2. This prevents air leakage from affecting the seal of the powder storage chamber 2 and reducing the spraying distance of the accelerant. One side of the filling rod 7 matches the shape of the inner wall of the powder storage chamber 2, ensuring that the filling rod 7 fills the inside of the inlet / outlet 4 while maintaining the shape of the inner wall structure of the powder storage chamber 2 after being placed on the inner wall of the inlet / outlet 4, preventing air leakage from affecting the airtightness of the powder storage chamber 2 and reducing the spraying distance of the accelerant. The design of the inlet / outlet 4, which affects the structural shape of the powder storage chamber 2, allows the bottom inlet / outlet 4 to facilitate the flow of combustion aid when replacing it, thanks to its inclined angle. Simultaneously, the top inlet / outlet 4, located at a higher position within the powder storage chamber 2, prevents gaps at one end of the chamber when adding combustion aid. The extension rod 9 and baffle 10, positioned at the top of the connection between the powder storage chamber 2 and the cover 3, provide protection to the top of the cover 3, preventing damage after installation inside the mine. Moisture dripping from the wall onto the connection between the casing 3 and the powder storage chamber 2 can cause corrosion damage over time. After the workers fix the mounting frame 13 to the inner wall of the mine, the mounting frame 13 can be moved up and down inside the annular plate 11 through the sliding connection between the mounting frame 13 and the annular plate 11. After adjusting the position distance between the mounting frame 13 and the powder storage chamber 2, the bolts 14 are inserted into the through hole 12 to pass through the bottom of the mounting frame 13, thereby fixing the position of the mounting frame 13 inside the annular plate 11. This allows the workers to adjust the position distance between the mounting frame 13 and the powder storage chamber 2 according to actual needs.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic explosion-proof device for underground coal mines, comprising a shock wave mechanism (1), characterized in that: A powder storage chamber (2) is installed on one side of the shock wave mechanism (1). A cover (3) is fixedly connected to one side of the powder storage chamber (2). Inlet and outlet (4) are provided at the top and bottom of the powder storage chamber (2). Threaded pipes (5) are fixedly connected to the top and bottom of the powder storage chamber (2). A sealing cover (6) is threadedly connected to the surface of the threaded pipe (5). A filling rod (7) is fixedly connected to the bottom of the sealing cover (6). The filling rod (7) is placed on the inner wall of the inlet and outlet (4).

2. The automatic explosion-proof device for underground coal mines according to claim 1, characterized in that: A sealing ring (8) is fixedly connected to the inner wall of the threaded pipe (5), and the surface of the sealing ring (8) abuts against one end of the threaded pipe (5).

3. The automatic explosion-proof device for underground coal mines according to claim 1, characterized in that: One side of the filling rod (7) is adapted to the inner wall structure of the powder storage chamber (2).

4. The automatic explosion-proof device for underground coal mines according to claim 1, characterized in that: The inner diameter of the powder storage chamber (2) gradually decreases from left to right, and the inlet and outlet (4) are located at the thicker end of the powder storage chamber (2).

5. The automatic explosion-proof device for underground coal mines according to claim 1, characterized in that: Both sides of the powder storage chamber (2) are fixedly connected to extension rods (9), and the other end of the extension rods (9) is fixedly connected to a baffle (10).

6. The automatic explosion-proof device for underground coal mines according to claim 1, characterized in that: The top of the powder storage chamber (2) is fixedly connected to two annular plates (11). Several through holes (12) are opened on the surface of the annular plates (11). An installation frame (13) is slidably connected inside the annular plates (11). Bolts (14) are inserted and connected to the bottom of both ends of the installation frame (13).

Images