Coal mine ventilation device with ash removal structure

Abstract

The utility model provides a coal mine ventilation device with a deashing structure, which relates to the technical field of mine ventilation, and comprises an air inlet pipe and an exhaust pipe, and the lower parts of the air inlet pipe and the exhaust pipe are fixedly connected with a supporting seat together; the air inlet pipe and the exhaust pipe are jointly and rotationally connected with a rotating shaft, one end of the rotating shaft extends into the air inlet pipe and is fixedly connected with a second bevel gear, and the other end of the rotating shaft extends into the exhaust pipe and is fixedly connected with a fourth bevel gear; a filter frame is fixedly connected into the air inlet pipe, and a filter screen is fixedly mounted on the filter frame in a penetrating manner; the rotating shaft is driven by the motor to rotate, then the air inlet fan blades and the air outlet fan blades are driven to operate at the same time, and the air inlet fan blades rapidly suck external fresh air into the air inlet pipe and convey the fresh air into a mine. And the exhaust fan blades rapidly exhaust harmful gas in the mine, rapid circulation of air in the mine is achieved, the freshness of the air in the mine is effectively guaranteed, and the filter screen arranged in the air inlet pipe can effectively filter the entered air.

Description

Technical Field

[0001] This utility model relates to the technical field of mine ventilation, and in particular to a coal mine ventilation device with a dust removal structure. Background Technology

[0002] Coal mine ventilation is a crucial aspect of safe coal mine production. Through specific ventilation devices and systems, it introduces fresh air from the outside into the mine while expelling harmful gases such as methane and dust generated during coal mining. This regulates air quality, temperature, and humidity within the mine, creating a suitable underground working environment. Coal mine ventilation not only provides workers with sufficient oxygen, ensuring their safety and health and reducing the risk of explosions and poisoning caused by the accumulation of harmful gases, but also reduces dust damage to equipment, extends equipment lifespan, and ensures the smooth operation of coal mining. In coal mining operations, mine ventilation is a key element in ensuring safe production and the health of workers. The coal mining environment is extremely unique; the mine space is enclosed, and the coal mining process continuously releases large amounts of harmful gases such as methane and generates dust, resulting in poor internal air quality. To maintain a suitable underground working environment, it is necessary to continuously introduce fresh air from the outside while simultaneously expelling harmful gases.

[0003] However, coal mines are often located in areas with strong winds and sandstorms, and the outside air often contains a certain amount of dust and impurities. If the dust enters the mine directly, it will be carried into the mine by the ventilation airflow. This will not only reduce the cleanliness of the air entering the mine, but also further increase the risk of workers developing respiratory diseases and affect their health. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a coal mine ventilation device with a dust removal structure.

[0005] This utility model provides a coal mine ventilation device with a dust removal structure, including an air inlet pipe and an exhaust pipe, the lower parts of which are fixedly connected to a support base;

[0006] The intake pipe and the exhaust pipe are rotatably connected to a rotating shaft. One end of the rotating shaft extends into the intake pipe and is fixedly connected to a second bevel gear. The other end of the rotating shaft extends into the exhaust pipe and is fixedly connected to a fourth bevel gear.

[0007] A first vertical plate is fixedly connected to the inner side of the air intake pipe. A first connecting shaft is rotatably connected through the first vertical plate. An air intake fan blade and a first bevel gear are fixedly sleeved on the first connecting shaft. The first bevel gear meshes with a second bevel gear.

[0008] A second vertical plate is fixedly connected inside the exhaust pipe. A second connecting shaft is rotatably connected through the second vertical plate. An exhaust fan blade and a third bevel gear are fixedly sleeved on the second connecting shaft. The third bevel gear meshes with a fourth bevel gear.

[0009] A filter frame is fixedly connected inside the air intake pipe, and a filter screen is fixedly installed through the filter frame.

[0010] Preferably, a motor is fixedly installed on the support base, a second pulley is fixedly connected to the rotating end of the motor, a first pulley is fixedly sleeved on the rotating shaft, and the first pulley is connected to the second pulley via a belt.

[0011] Preferably, a horizontal rotating shaft is rotatably connected through the middle of the filter frame, a cleaning brush is fixedly connected to one end of the horizontal rotating shaft, the bristles of the cleaning brush are in contact with one side of the filter screen, and a transmission gear is fixedly connected to the other end of the horizontal rotating shaft.

[0012] Preferably, a vertical slide rod is slidably connected to the upper part of the intake pipe, and a rack is fixedly connected to the bottom end of the vertical slide rod after it extends into the intake pipe. The rack meshes with a transmission gear.

[0013] Preferably, a pressing handle is fixedly connected to the top of the vertical slide rod, a spring is sleeved on the outside of the vertical slide rod, the top of the spring is fixedly connected to the bottom of the pressing handle, and the bottom of the spring is fixedly connected to the outer wall of the air intake pipe.

[0014] Preferably, one side of the filter screen is flush with one side of the filter frame.

[0015] Preferably, the lower part of the air inlet pipe is fixedly connected to a dust discharge hopper communicating with its interior. The dust discharge hopper is located below one side of the filter screen, and a collection cylinder is threadedly connected to the bottom end of the dust discharge hopper.

[0016] Compared with related technologies, the coal mine ventilation device with a dust removal structure provided by this utility model has the following beneficial effects:

[0017] 1. This utility model uses a motor to drive a rotating shaft, which in turn drives the intake fan blades and exhaust fan blades to operate simultaneously. The intake fan blades quickly draw in fresh air from outside through the intake pipe and deliver it into the mine; the exhaust fan blades quickly expel harmful gases from the mine, achieving rapid air circulation within the mine. This effectively ensures the freshness of the air in the mine, provides sufficient oxygen for underground workers, and protects their lives. The filter screen installed inside the intake pipe can effectively filter the incoming air, blocking dust and impurities from the air and improving the cleanliness of the air entering the mine.

[0018] 2. In this utility model, when dust accumulates on the filter screen and affects the filtration effect, simply push the pressing handle, the vertical sliding rod drives the rack to move, which in turn causes the transmission gear to rotate, driving the dust removal brush to rotate, and the dust on one side of the filter screen can be easily brushed off. This dust removal method does not require disassembling the filter screen, is simple and quick to operate, can clean the dust in time, and ensure the effective filtration area of ​​the filter screen.

[0019] 3. In this utility model, the design of the ash discharge hopper and collection cylinder connected to the lower part of the air inlet pipe allows the dust brushed off by the dust removal brush to fall directly into the ash discharge hopper and be collected into the collection cylinder. The collection cylinder is threadedly connected to the ash discharge hopper, which facilitates disassembly and cleaning. Attached Figure Description

[0020] Figure 1 A schematic diagram of the overall structure of the coal mine ventilation device with a dust removal structure provided by this utility model;

[0021] Figure 2 This is a schematic diagram of the cut-open air inlet pipe of the coal mine ventilation device with a ash removal structure in this utility model.

[0022] Figure 3 This is a schematic diagram of the exhaust pipe of the coal mine ventilation device with a ash-removing structure in this utility model after being cut open.

[0023] Figure 4 This is a schematic diagram of the structure at the rotating shaft in this utility model;

[0024] Figure 5 This is a schematic diagram of the filter frame in this utility model.

[0025] The following are the labeling elements in the diagram: 1. Intake pipe; 101. Intake fan blade; 102. First connecting shaft; 103. First bevel gear; 104. Second bevel gear; 105. First vertical plate; 2. Exhaust pipe; 201. Exhaust fan blade; 202. Third bevel gear; 203. Second vertical plate; 204. Fourth bevel gear; 205. Second connecting shaft; 3. Support base; 4. Collection cylinder; 5. Ash discharge hopper; 6. Filter frame; 7. Filter screen; 8. Press handle; 9. Vertical slide bar; 10. Rack; 11. Transmission gear; 12. Horizontal rotating shaft; 13. Dust cleaning brush; 14. Spring; 15. Motor; 16. First pulley; 17. Second pulley; 18. Rotating shaft. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] Example 1

[0028] Please refer to the following: Figures 1 to 4A coal mine ventilation device with a dust removal structure includes an inlet pipe 1 and an exhaust pipe 2. A support base 3 is fixedly connected to the lower parts of both the inlet pipe 1 and the exhaust pipe 2. A rotating shaft 18 is rotatably connected to both the inlet pipe 1 and the exhaust pipe 2. One end of the rotating shaft 18 extends into the inlet pipe 1 and is fixedly connected to a second bevel gear 104, while the other end extends into the exhaust pipe 2 and is fixedly connected to a fourth bevel gear 204. A first vertical plate 105 is fixedly connected to the inner side of the inlet pipe 1. A first connecting shaft 102 is rotatably connected through the first vertical plate 105, and an inlet fan blade is fixedly sleeved on the first connecting shaft 102. 101 and the first bevel gear 103 mesh with the second bevel gear 104; a second vertical plate 203 is fixedly connected inside the exhaust pipe 2, and a second connecting shaft 205 is rotatably connected through the second vertical plate 203. An exhaust fan blade 201 and a third bevel gear 202 are fixedly sleeved on the second connecting shaft 205. The third bevel gear 202 meshes with the fourth bevel gear 204. The outlet end of the exhaust pipe 2 is connected to an external gas treatment system for treating the gas discharged from the mine through a pipe. The inlet end of the air inlet pipe 1 extends out of the mine through a pipe to introduce fresh air from outside into the mine.

[0029] Furthermore, a motor 15 is fixedly installed on the support base 3. The motor 15 is connected to an external switch through a wire. The external switch controls the operation of the motor 15 and is connected to an external power source for power supply. A second pulley 17 is fixedly connected to the rotating end of the motor 15. A first pulley 16 is fixedly sleeved on the rotating shaft 18. The first pulley 16 is connected to the second pulley 17 through a belt.

[0030] Example 2

[0031] For further details, please refer to [link / reference]. Figures 1 to 5 Based on Embodiment 1, a filter frame 6 is fixedly connected inside the intake pipe 1, and a filter screen 7 is fixedly installed through the filter frame 6. The filter screen 7 is located near the inlet end of the intake pipe 1, and the intake fan blade 101 is located near the outlet end of the intake pipe 1. (Refer to...) Figure 2 The incoming air first comes into contact with the filter screen 7 for filtration before coming into contact with the fan blades 101, thereby reducing the risk of the fan blades 101 being contaminated by dust. A horizontal rotating shaft 12 is rotatably connected through the middle of the filter frame 6. A dust cleaning brush 13 is fixedly connected to one end of the horizontal rotating shaft 12. The bristles of the dust cleaning brush 13 are in contact with one side of the filter screen 7. A transmission gear 11 is fixedly connected to the other end of the horizontal rotating shaft 12. One side of the filter screen 7 is flush with one side of the filter frame 6.

[0032] Furthermore, a vertical slide rod 9 is slidably connected to the upper part of the intake pipe 1. The bottom end of the vertical slide rod 9 extends into the intake pipe 1 and is fixedly connected to a rack 10. The rack 10 meshes with the transmission gear 11.

[0033] Furthermore, a pressing handle 8 is fixedly connected to the top of the vertical slide bar 9, and a spring 14 is sleeved on the outside of the vertical slide bar 9. The top of the spring 14 is fixedly connected to the bottom of the pressing handle 8, and the bottom of the spring 14 is fixedly connected to the outer wall of the air intake pipe 1.

[0034] Furthermore, the lower part of the air intake pipe 1 is fixedly connected to a dust discharge hopper 5 that communicates with its interior. The dust discharge hopper 5 is located below one side of the filter screen 7. The bottom end of the dust discharge hopper 5 is cylindrical and has external threads on its outer surface. The bottom end of the dust discharge hopper 5 is threadedly connected to a collection cylinder 4.

[0035] See Figures 1 to 5 The working principle of the coal mine ventilation device with a dust removal structure provided by this utility model is as follows:

[0036] In use, the coal mine ventilation device with a dust removal structure of this utility model is installed in the mine requiring ventilation. The outlet end of the exhaust pipe 2 discharges the gas inside the mine to the external gas treatment system through a connecting pipe. The inlet end of the air inlet pipe 1 extends to the outside through a pipe to supply fresh air into the mine. The motor 15 is started, which drives the second pulley 17 to rotate. The second pulley 17 drives the first pulley 16 to rotate through a belt. The first pulley 16 drives the rotating shaft 18 to rotate. The rotating shaft 18 drives the second bevel gear 104 and the fourth bevel gear 204 to rotate. The second bevel gear 104 drives the first bevel gear 103 to rotate the first connecting shaft 102. The intake fan blades 101 rotate, drawing in outside air through the intake pipe 1 and delivering it into the mine. The outside air, upon entering the intake pipe 1, is first filtered by the filter screen 7 to remove dust and impurities, resulting in cleaner air entering the mine. Simultaneously, the fourth bevel gear 204 drives the third bevel gear 202, which in turn drives the second connecting shaft 205 to rotate the exhaust fan blades 201. This rotation of the exhaust fan blades 201 creates airflow, drawing gas from the mine into the exhaust pipe 2 and discharging it outside the mine. This process of delivering fresh air into the mine through the intake pipe 1 and discharging it through the exhaust pipe... 2. Harmful gases in the mine are discharged outside the mine through exhaust pipe 2 for treatment, thus ensuring fresh air in the mine and providing sufficient oxygen for the workers underground. Air entering the mine through intake pipe 1 is filtered by filter screen 7, removing dust and impurities to improve the cleanliness of the air entering the mine. After prolonged filtration, to prevent dust from clogging one side of filter screen 7 and affecting the filtration area, the dust adhering to one side of filter screen 7 needs to be cleaned. At this time, pushing the pressing handle 8 causes the vertical sliding rod 9 to slide downwards, the spring 14 is elastically compressed, the vertical sliding rod 9 drives the rack 10 to move synchronously, and the rack 10 drives the transmission gear 11 to rotate. The horizontal rotating shaft 12 drives the dust removal brush 13 to rotate, thereby brushing off the dust on one side of the filter screen 7, cleaning the dust on the filter screen 7, and ensuring the effective filtration area of ​​the filter screen 7. When the pressing handle 8 is stopped, the elastic potential energy of the spring 14 is released, which allows the pressing handle 8 to move upward and reset. The dust and impurities brushed off by the dust removal brush 13 fall into the ash discharge hopper 5 and then into the collection cylinder 4 for collection. When it is necessary to clean the dust in the collection cylinder 4, since the collection cylinder 4 is threadedly connected to the ash discharge hopper 5, the collection cylinder 4 can be rotated to remove it from the bottom of the ash discharge hopper 5, and then the dust in the collection cylinder 4 can be poured out for cleaning.

[0037] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A coal mine ventilation device with a dust removal structure, characterized in that, It includes an intake pipe (1) and an exhaust pipe (2), and the lower parts of the intake pipe (1) and the exhaust pipe (2) are fixedly connected to a support base (3). The intake pipe (1) and exhaust pipe (2) are rotatably connected to a rotating shaft (18). One end of the rotating shaft (18) extends into the intake pipe (1) and is fixedly connected to a second bevel gear (104). The other end of the rotating shaft (18) extends into the exhaust pipe (2) and is fixedly connected to a fourth bevel gear (204). The inner side of the air intake pipe (1) is fixedly connected to a first vertical plate (105), and a first connecting shaft (102) is rotatably connected through the first vertical plate (105). An air intake fan blade (101) and a first bevel gear (103) are fixedly sleeved on the first connecting shaft (102), and the first bevel gear (103) meshes with a second bevel gear (104). The exhaust pipe (2) is fixedly connected to a second vertical plate (203), and a second connecting shaft (205) is rotatably connected through the second vertical plate (203). An exhaust fan blade (201) and a third bevel gear (202) are fixedly sleeved on the second connecting shaft (205), and the third bevel gear (202) meshes with a fourth bevel gear (204). A filter frame (6) is fixedly connected inside the air intake pipe (1), and a filter screen (7) is fixedly installed through the filter frame (6).

2. A coal mine ventilation device with a dust removal structure according to claim 1, characterized in that, A motor (15) is fixedly installed on the support base (3). A second pulley (17) is fixedly connected to the rotating end of the motor (15). A first pulley (16) is fixedly sleeved on the rotating shaft (18). The first pulley (16) is connected to the second pulley (17) by a belt.

3. A coal mine ventilation device with a dust removal structure according to claim 1, characterized in that, A horizontal rotating shaft (12) is rotatably connected through the middle of the filter frame (6). A cleaning brush (13) is fixedly connected to one end of the horizontal rotating shaft (12). The bristles of the cleaning brush (13) are attached to one side of the filter screen (7). A transmission gear (11) is fixedly connected to the other end of the horizontal rotating shaft (12).

4. A coal mine ventilation device with a dust removal structure according to claim 3, characterized in that, The upper part of the air intake pipe (1) is slidably connected to a vertical slide rod (9). The bottom end of the vertical slide rod (9) extends into the air intake pipe (1) and is fixedly connected to a rack (10). The rack (10) meshes with the transmission gear (11).

5. A coal mine ventilation device with a dust removal structure according to claim 4, characterized in that, The top of the vertical slide bar (9) is fixedly connected to a pressing handle (8), and a spring (14) is sleeved on the outside of the vertical slide bar (9). The top of the spring (14) is fixedly connected to the bottom of the pressing handle (8), and the bottom of the spring (14) is fixedly connected to the outer wall of the air intake pipe (1).

6. A coal mine ventilation device with a dust removal structure according to claim 1, characterized in that, One side of the filter screen (7) is flush with one side of the filter frame (6).

7. A coal mine ventilation device with a dust removal structure according to claim 1, characterized in that, The lower part of the air inlet pipe (1) is fixedly connected to a dust discharge hopper (5) that communicates with its interior. The dust discharge hopper (5) is located below one side of the filter screen (7), and the bottom end of the dust discharge hopper (5) is threadedly connected to a collection cylinder (4).

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