Coal mine ventilation dust falling device

Abstract

This utility model provides a coal mine ventilation and dust suppression device, relating to the technical field of mine dust suppression equipment. It includes a ventilation pipe comprising a first pipe body, a fourth pipe body, and two sets of second and third pipe bodies. One end of the second and third pipe bodies is connected. Both the first and fourth pipe bodies are tee pipes. Two ports of the first pipe body are connected to one end of each of the two second pipe bodies, and two ports of the fourth pipe body are connected to one end of each of the two third pipe bodies. Each second pipe body is equipped with a valve assembly, and each third pipe body is equipped with a filter element assembly. By using the first and fourth pipe bodies as tee pipes, airflow can be split and converged between these two pipes. The second and third pipe bodies form redundant ventilation paths through connection. When one set of pipes becomes blocked, the valve assembly on that set of pipes can be closed, allowing airflow to continue through the other set of pipes, ensuring uninterrupted ventilation.

Description

Technical Field

[0001] This utility model relates to the field of coal mine dust suppression technology, and more specifically, it relates to a coal mine ventilation and dust suppression device. Background Technology

[0002] In the coal mining environment, mine ventilation and dust suppression are essential factors to ensure miner safety and maintain efficient production.

[0003] In existing technologies, mine ventilation systems mainly rely on a single duct for air supply. While this simple design is easy to install and maintain, it has significant limitations. For example, if the filter on the ventilation duct becomes clogged, it's like a narrow "throat" getting stuck, causing a sharp drop in ventilation efficiency and potentially leading to serious consequences such as insufficient oxygen and the accumulation of harmful gases, threatening the lives of miners.

[0004] Therefore, improving the reliability and extending the service life of mine ventilation systems has become a key challenge for mine management. An effective solution needs to increase the system's resistance to interference and its stability while ensuring ventilation effectiveness. This invention employs a redundant ventilation duct design, ensuring that even if one duct becomes blocked or malfunctions, other backup ducts can still maintain normal ventilation, thereby greatly improving the reliability and safety of the entire system. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a coal mine ventilation and dust suppression device, which solves the problem of easy blockage in single ventilation in mines.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model provides a coal mine ventilation and dust suppression device, including a ventilation pipe. The ventilation pipe includes a first pipe body, a fourth pipe body, and two sets of second and third pipe bodies. One end of the second and third pipe bodies is connected. The first and fourth pipe bodies are both tee pipes. Two ports of the first pipe body are connected to one end of the two second pipe bodies. Two ports of the fourth pipe body are connected to one end of the two third pipe bodies. Each second pipe body is equipped with a valve assembly, and each third pipe body is equipped with a filter element assembly.

[0008] According to one embodiment of the present invention, the valve assembly includes a bracket, a telescopic cylinder, a connecting piece, a flap, and a rotating shaft. The bracket is mounted on a first pipe body, and bearing seats are mounted on the upper and lower ends of the second pipe body. The flap is adapted to the inner wall of the second pipe body, and a rotating shaft is mounted on the flap. The two ends of the rotating shaft are rotatably connected to the bearing seats. A connecting piece is fixedly connected to the upper end of the bearing seats. A telescopic cylinder is rotatably connected to the bracket, and the other end of the telescopic cylinder is hinged to the other end of the connecting piece.

[0009] According to one embodiment of the present invention, the filter element assembly includes a fixed plate and a filter cylinder, the fixed plate is installed in the third tube body, and one end of the filter cylinder is connected to the fixed plate.

[0010] According to one embodiment of the present invention, at least two locking posts are connected to one side of the fixed disk, and one end of the filter cylinder is connected to a corresponding locking groove of the locking post, wherein the locking groove and the locking post are rotatably engaged.

[0011] According to one embodiment of the present invention, the cross-section of the locking post is T-shaped or L-shaped.

[0012] According to one embodiment of the present invention, the first pipe body, the second pipe body, the third pipe body and the fourth pipe body are all fixedly connected by flanges.

[0013] According to one embodiment of the present invention, the slot has an outwardly opening notch.

[0014] In summary, this application includes at least one of the following beneficial technical effects:

[0015] 1. In this design, the first and fourth pipe bodies are configured as tee pipes, allowing airflow to be split and converged between them. The second and third pipe bodies are connected to form redundant ventilation paths. When one set of pipes becomes blocked, the valve assembly on that set can be closed to allow airflow to continue through the other set of pipes, ensuring uninterrupted ventilation. Simultaneously, the filter assembly installed on the third pipe body filters dust from the airflow, effectively reducing dust concentration in the mine and improving the working environment for miners.

[0016] 2. In this design, when the telescopic cylinder extends, the connecting plate drives the flap to rotate around the shaft, thereby opening or closing the second pipe body and realizing the opening or closing function of the ventilation duct. This allows operators to easily control the opening and closing of the ventilation duct, improving the flexibility and operability of the equipment. Simultaneously, the adaptive design of the flap and the inner wall of the second pipe body ensures the sealing performance when the valve is closed, preventing air leakage in the mine and further improving the ventilation effect. Attached Figure Description

[0017] Figure 1 This is a structural diagram of a coal mine ventilation and dust suppression device according to the present invention;

[0018] Figure 2 This is a structural diagram of a valve assembly for a coal mine ventilation and dust suppression device according to the present invention;

[0019] Figure 3 This is a structural diagram of the third pipe body of a coal mine ventilation and dust suppression device according to the present invention;

[0020] Figure 4 This is a structural diagram of a filter element assembly for a coal mine ventilation and dust suppression device according to the present invention;

[0021] Figure 5 This is an exploded structural diagram of a filter element assembly for a coal mine ventilation and dust suppression device according to the present invention.

[0022] Figure 6 This is a schematic diagram of another embodiment of the coal mine ventilation and dust suppression equipment of this utility model.

[0023] Reference numerals: 1. Ventilation duct; 101. First duct body; 102. Second duct body; 103. Third duct body; 104. Fourth duct body; 2. Valve assembly; 201. Bracket; 202. Telescopic cylinder; 203. Connecting piece; 204. Flip plate; 205. Rotating shaft; 206. Bearing seat; 3. Filter element assembly; 301. Fixing plate; 3011. Locking post; 302. Filter cartridge; 3021. Locking groove; 3022. Notch. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figure 1As shown, this embodiment provides a coal mine ventilation and dust suppression device, including a ventilation pipe 1. The ventilation pipe 1 includes a first pipe body 101 and a fourth pipe body 104, as well as two sets of second pipe bodies 102 and third pipe bodies 103. One end of the second pipe bodies 102 and the third pipe bodies 103 are connected. The first pipe body 101 and the fourth pipe body 104 are both tee pipes. The two ports of the first pipe body 101 are connected to one end of the two second pipe bodies 102, and the two ports of the fourth pipe body 104 are connected to one end of the two third pipe bodies 103. A valve assembly 2 is installed on each of the second pipe bodies 102, and a filter element assembly 3 is installed on each of the third pipe bodies 103. The first pipe body 101, the second pipe body 102, the third pipe body 103, and the fourth pipe body 104 are all fixedly connected by flanges.

[0026] Furthermore, a main control unit is located at the center of the first pipe body 101 and the fourth pipe body 104 to control the opening and closing of the valve assembly 2 and monitor the working status of the filter element assembly 3. When the filter element assembly 3 in a certain group of the second pipe body 102 and the third pipe body 103 becomes clogged due to prolonged use, the main control unit can automatically detect this change and quickly control the corresponding valve assembly 2 to close, while simultaneously opening the valve assembly 2 on the backup pipe to ensure that ventilation is not affected. In addition, the main control unit can also intelligently adjust the ventilation volume based on the air quality data in the mine to achieve the best ventilation and dust suppression effect. At the other end of the first pipe body 101 and the fourth pipe body 104, the mine's air inlet and air outlet are connected respectively, forming a complete ventilation loop. When the ventilation system starts running, air enters the first pipe body 101 from the air inlet and then flows to the second pipe body 102. By adjusting the valve assembly 2, the size and direction of the airflow can be controlled to adapt to the ventilation needs of different mines. The air flowing in the second pipe 102 is purified by the filter element assembly 3, effectively removing dust and harmful substances and keeping the mine air fresh. The purified air continues to flow into the third pipe 103 and finally converges into the fourth pipe 104, and is discharged from the mine through the air outlet.

[0027] The valve assembly 2 includes a bracket 201, a telescopic cylinder 202, a connecting piece 203, a flap 204, a rotating shaft 205, and a bearing seat 206. The telescopic cylinder 202 is fixed to the bracket 201. The piston rod of the telescopic cylinder 202 is fixedly connected to the connecting piece 203. The connecting piece 203 is hinged to one end of the flap 204. The other end of the flap 204 is mounted on the bearing seat 206 via the rotating shaft 205. The bearing seat 206 is fixed to the second pipe body 102. The flap 204 can rotate around the rotating shaft 205 under the drive of the telescopic cylinder 202, thereby controlling the opening and closing of the second pipe body 102.

[0028] like Figure 2As shown, valve assembly 2 includes a bracket 201, a telescopic cylinder 202, a connecting piece 203, a flap 204, and a rotating shaft 205. The bracket 201 is mounted on the first pipe body 101. Bearing seats 206 are mounted on the upper and lower ends of the second pipe body 102. The flap 204 is adapted to the inner wall of the second pipe body 102. The rotating shaft 205 is mounted on the flap 204, and both ends of the rotating shaft 205 are rotatably connected to the bearing seats 206. The connecting piece 203 is fixedly connected to the upper end of the bearing seats 206. The telescopic cylinder 202 is rotatably connected to the bracket 201, and the other end of the telescopic cylinder 202 is hinged to the other end of the connecting piece 203. The flap 204 is driven to rotate by the telescopic cylinder 202, thereby opening or closing the two second pipe bodies 102. When the telescopic cylinder 202 extends, it pushes the connecting plate 203, causing the flap 204 to rotate around the shaft 205, opening the second pipe 102. When the telescopic cylinder 202 retracts, it pulls the connecting plate 203, causing the flap 204 to rotate in the opposite direction, closing the second pipe 102. During normal operation, only one second pipe 102 is in operation. When the third pipe 103 containing the second pipe 102 becomes blocked, the blocked second pipe is closed, another second pipe is opened for ventilation, and the filter cartridge 302 of the blocked third pipe is replaced. In addition, this design makes the operation of the valve assembly 2 simple and convenient, and can effectively control the ventilation volume of the ventilation pipe 1.

[0029] Furthermore, such as Figure 3 As shown, a filter element assembly 3 is installed inside the second tube 102, such as... Figure 4 and 5 As shown, the filter element assembly 3 in this embodiment includes a fixing plate 301 and a filter cartridge 302. The fixing plate 301 is installed inside the third pipe body 103, and one end of the filter cartridge 302 is connected to the fixing plate 301. The filter element assembly 3 is used to filter the air in the ventilation duct 1, removing dust and impurities to ensure the cleanliness of the air in the coal mine ventilation system. The filter element assembly 3 is detachably installed inside the third pipe body 103 for easy periodic cleaning or replacement to ensure its filtration effect.

[0030] In summary, valve assembly 2 includes a bracket 201, a telescopic cylinder 202, a connecting piece 203, a flap 204, a rotating shaft 205, and a bearing seat 206. The telescopic cylinder 202 is fixedly mounted on the bracket 201. The output end of the telescopic cylinder 202 is fixedly connected to the flap 204 via the connecting piece 203. The middle part of the flap 204 is rotatably connected to the bearing seat 206 via the rotating shaft 205. The bearing seat 206 is fixedly mounted on the second pipe body 102. Filter assembly 3 includes a fixing plate 301 and a filter cartridge 302. A retaining post 3011 is provided at the edge of the fixing plate 301. A retaining groove 3021 adapted to the retaining post 3011 is provided at the top of the filter cartridge 302. A notch 3022 is provided on the side wall of the filter cartridge 302. Through the valve assembly 2, the opening and closing of the second pipe body 102 can be easily controlled, thereby adjusting the airflow in the ventilation duct 1. The filter element 3 can filter the air entering the ventilation duct 1, remove dust and other impurities from the air, and improve air quality.

[0031] To ensure a secure connection between the fixed plate 301 and the filter cartridge 302, at least two locking posts 3011 are connected to one side of the fixed plate 301. In this embodiment, three locking posts 3011 are evenly distributed on the fixed plate 301. One end of the filter cartridge 302 is connected to a corresponding slot 3021 of the locking post 3011, and the slot 3021 is rotatably engaged with the locking post 3011. The cross-section of the locking post 3011 can be T-shaped or L-shaped.

[0032] Furthermore, to improve the sealing performance of the filter element assembly 3, a sealing gasket is provided between the fixed plate 301 and the third tube 103. The sealing gasket can be made of high-temperature resistant and wear-resistant materials, such as silicone or fluororubber, to ensure that the sealing performance will not decrease due to wear or aging during long-term operation. At the same time, to facilitate the installation and disassembly of the filter element assembly 3, the fixed plate 301 can also be provided with a handle or lifting hole for convenient operation by personnel.

[0033] In another embodiment, such as Figure 6 As shown, the card slot 3021 has an outwardly opening notch 3022 to facilitate the connection between the card slot 3021 and the card post 3011.

[0034] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are 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. A coal mine ventilation and dust suppression device, comprising a ventilation pipe (1), characterized in that, The ventilation pipe (1) includes a first pipe body (101) and a fourth pipe body (104), as well as two sets of second pipe bodies (102) and third pipe bodies (103). One end of the second pipe body (102) and the third pipe body (103) are connected. The first pipe body (101) and the fourth pipe body (104) are both three-way pipes. The two ports of the first pipe body (101) are connected to one end of the two second pipe bodies (102). The two ports of the fourth pipe body (104) are connected to one end of the two third pipe bodies (103). A valve assembly (2) is installed on each of the second pipe bodies (102), and a filter element assembly (3) is installed on each of the third pipe bodies (103).

2. The coal mine ventilation and dust suppression equipment according to claim 1, characterized in that, The valve assembly (2) includes a bracket (201), a telescopic cylinder (202), a connecting piece (203), a flap (204), and a rotating shaft (205). The bracket (201) is mounted on the first pipe body (101). Bearing seats (206) are mounted on the upper and lower ends of the second pipe body (102). The flap (204) is adapted to the inner wall of the second pipe body (102). A rotating shaft (205) is mounted on the flap (204). Both ends of the rotating shaft (205) are rotatably connected to the bearing seats (206). The upper end of the bearing seats (206) is fixedly connected to the connecting piece (203). The telescopic cylinder (202) is rotatably connected to the bracket (201). The other end of the telescopic cylinder (202) is hinged to the other end of the connecting piece (203).

3. A coal mine ventilation and dust suppression device according to claim 2, characterized in that, The filter element assembly (3) includes a fixed plate (301) and a filter cartridge (302). The fixed plate (301) is installed inside the third tube (103), and one end of the filter cartridge (302) is connected to the fixed plate (301).

4. A coal mine ventilation and dust suppression device according to claim 3, characterized in that, At least two locking posts (3011) are connected to one side of the fixed plate (301), and one end of the filter cylinder (302) is connected to a corresponding slot (3021) of the locking post (3011). The slot (3021) and the locking post (3011) are rotatably engaged.

5. A coal mine ventilation and dust suppression device according to claim 4, characterized in that, The cross-section of the locking post (3011) is T-shaped or L-shaped.

6. A coal mine ventilation and dust suppression device according to claim 5, characterized in that, The first pipe body (101), the second pipe body (102), the third pipe body (103) and the fourth pipe body (104) are all fixedly connected by flanges.

7. A coal mine ventilation and dust suppression device according to claim 6, characterized in that, The slot (3021) has an outwardly opening notch (3022).

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