CN115680748A - A coal mine tunnel dust removal and purification device - Google Patents

Abstract

The invention belongs to the field of air purification, and particularly relates to a dust removal and purification device for a coal mine tunnel. The technology comprises a box body, the interior of the box body is divided into three sealed cavities by a vertical partition plate, a first transverse partition plate and a second transverse partition plate, a plurality of through holes are formed in the first transverse partition plate and the second transverse partition plate, a filter cloth bag is arranged between two through holes which are opposite up and down, the top end of the filter cloth bag is communicated with the through holes above the filter cloth bag, the bottom end of the filter cloth bag is communicated with the through holes below the filter cloth bag, the interior of the filter cloth bag is communicated with a third cavity and a second cavity, and the filter cloth bag is used for filtering dust; an air inlet communicated with the outside of the box body is formed in the side wall of the third chamber, and an exhaust fan is installed at the air inlet in the inner side wall of the third chamber; an air outlet communicated with the outside of the box body is formed in the side wall of the first cavity. The air is dedusted in the coal mine tunnel by using the purification device, the concentration of pulverized coal in the tunnel air can be reduced, the filtered pulverized coal can be collected, and the waste of the pulverized coal can be reduced.

Description

A coal mine tunnel dust removal and purification device

technical field

The invention belongs to the field of air purification, in particular to a coal mine tunnel dust removal and purification device.

Background technique

In the process of underground coal mining in coal mines, a large amount of coal powder will be produced when the drilling rig breaks the coal seam at the coal mining face, and it will also cause the coal powder to fly when the coal is moved. Excessive concentration will endanger the health of coal miners, and in severe cases, it will cause coal dust explosion and other safety accidents. Therefore, the ventilation system in the tunnel is particularly important. The ventilation system can form air circulation between the tunnel and the ground, and the coal powder can be pumped with the air. Drain to the ground.

However, the pulverized coal is discharged to the ground through the ventilation system, which is easy to pollute the ground environment. The direct discharge of the pulverized coal also leads to waste of pulverized coal. The pulverized coal enters the ventilation system and easily adheres to the inner wall of the pipeline, which is difficult to clean. In severe cases, it is easy to cause pipeline blockage and affect ventilation. The ventilation effect of the system.

Also have existing technology to carry out dedusting in tunnel by the mode of spraying water (fog) dust reduction, but fail to collect pulverized coal, also caused the waste of pulverized coal.

Contents of the invention

According to the deficiencies in the prior art above, the technical problem to be solved by the present invention is: provide a coal mine tunnel dust removal and purification device, use the purification device to remove dust from the air in the tunnel, reduce the concentration of coal powder in the tunnel air, and collect and filter The pulverized coal that comes out reduces the waste of pulverized coal.

The coal mine tunnel dust removal and purification device includes a box body, and the interior of the box body is divided into three sealed chambers by a vertical partition, a first transverse partition and a second transverse partition, and the first transverse partition is located in the second transverse partition. The sealed cavity above the partition and between the first transverse partition and the second transverse partition is the first chamber, the sealed cavity below the second transverse partition is the second chamber, and the other sealed cavity is the third chamber chamber, the first transverse partition and the second transverse partition are provided with a plurality of through holes, and the plurality of through holes on the first transverse partition and the plurality of through holes on the second transverse partition There is a one-to-one correspondence in the vertical direction, and filter bags are arranged between the upper and lower through holes. The top of the filter bag is connected to the upper through hole, and its bottom is connected to the lower through hole. The through hole communicates with the third chamber, and the inside of the filter bag communicates with the second chamber through the lower through hole, and the filter bag is used to filter dust; the side wall of the third chamber is provided with an air inlet connected with the outside of the box, An exhaust fan is installed at the air inlet on the inner side wall of the third chamber; an air outlet communicating with the outside of the box is provided on the side wall of the first chamber.

Further, an air outlet joint is installed at the air outlet on the outer wall of the box, and the air outlet joint communicates with the air inlet pipe of the ventilation system.

Further, the side wall of the second chamber is provided with a notch communicating with the outside of the box, and a sealed hatch is installed at the notch.

Further, a funnel is installed at the bottom end of the second transverse partition, and the bottom ends of each through hole on the second transverse partition are located inside the funnel; a collection bag is arranged in the second chamber, and the top opening end of the collection bag It is detachably connected with the bottom outlet of the funnel.

Further, a rotating shaft is arranged between the first transverse partition and the second transverse partition, and the rotating shaft extends in the vertical direction, and a plurality of filter bags are distributed in a circular shape on the outside of the rotating shaft along the axial direction of the rotating shaft; the first transverse The top of the partition is equipped with a driving motor, the top of the rotating shaft is connected to the driving motor, and the bottom of the rotating shaft is connected to the top of the second transverse partition in rotation; a plurality of scrapers are arranged at intervals along the axial direction on the rotating shaft, and the scrapers follow the rotation of the rotating shaft. It can be used to beat the filter bag when turning.

Further, a plurality of scrapers are radially distributed on the rotating shaft, one end of the scraper is fixedly installed on the rotating shaft, the other end extends laterally, and the distance between the end surface of the other end and the outer wall of the rotating shaft is greater than that of the outer wall of the filter bag Distance from the outside wall of the shaft.

Further, connecting sleeves are installed at each through hole at the bottom end of the first transverse partition and at each through hole at the top of the second transverse partition, and connecting pipes are provided at the top and bottom of each filter bag, One end of the connecting pipe is detachably connected to the filter bag, and the other end is connected to the connecting sleeve in rotation; the middle part of each connecting pipe is provided with a first gear, and the rotating shaft is provided with two second gears, one of which is the second gear It meshes with each first gear above the filter cloth bag, and another second gear meshes with each first gear below the filter cloth bag.

Compared with the prior art, the present invention has the following beneficial effects:

In the process of coal mining underground in coal mines, the purification device is placed in the tunnel of the coal mine, and the air in the tunnel is filtered by the purification device, and the coal powder in the air is filtered. When the purification device is used, the exhaust fan can be used to carry the outside of the box The pulverized coal air is sucked into the box, and under the action of the air flow, the air carrying the pulverized coal enters the filter bag, and the filter bag filters the air carrying the pulverized coal, blocking the pulverized coal in the filter bag, and the filtered air passes through the first The air outlet on the side wall of the first chamber is discharged to the outside of the box, and the coal powder filtered by the filter bag falls from the filter bag into the through hole on the second transverse partition under the action of gravity, and then falls through the through hole to the second horizontal partition. Accumulation in the second chamber; the purification device is used to remove dust from the air in the coal mine tunnel, which can reduce the concentration of coal powder in the tunnel air, collect the filtered coal powder, and reduce the waste of coal powder.

Description of drawings

Fig. 1 is the front view structure schematic diagram of the present invention;

Fig. 2 is the right view structural representation of the present invention;

Fig. 3 is a schematic diagram of a cross-sectional structure in the direction of A-A in Fig. 2;

Figure 4 is an enlarged schematic view of the local structure at B in Figure 3;

Figure 5 is an enlarged schematic view of the local structure at D in Figure 4;

Fig. 6 is a schematic diagram of a cross-sectional structure in the direction of C-C in Fig. 3;

The names of the components in the figure: 1, box body 2, box door 3, observation window 4, air outlet joint 5, travel wheel 6, sealed hatch door 7, collection bag 8, first fastener 9, funnel 10, filter cloth bag 11. Through hole 12, drive motor 13, scraper 14, first transverse partition 15, vertical partition 16, first chamber 17, second transverse partition 18, exhaust fan 19, third chamber 20, The second chamber 21, the second gear 22, the connecting pipe 23, the connecting sleeve 24, the second fastener 25, the first gear 26, the sealed bearing 27, and the rotating shaft.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings through specific embodiments, but it is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Example 1

A coal mine tunnel dust removal and purification device described in this embodiment, as shown in Figures 1 to 3, includes a box body 1, and the interior of the box body 1 passes through a vertical partition 15, a first transverse partition 14 and a second transverse partition. The partition 17 is divided into three sealed chambers, the first transverse partition 14 is located above the second transverse partition 17, and the sealed cavity between the first transverse partition 14 and the second transverse partition 17 is the first chamber 16 , the sealed chamber below the second transverse partition 17 is the second chamber 20, and the other sealed chamber is the third chamber 19, on the first transverse partition 14 and on the second transverse partition 17 there are multiple a plurality of through holes 11, and the plurality of through holes 11 on the first transverse partition 14 correspond to the plurality of through holes 11 on the second transverse partition 17 in the vertical direction, and the upper and lower two through holes 11 are coaxially arranged. A filter cloth bag 10 is arranged between the two upper and lower through holes 11, the top of the filter cloth bag 10 communicates with the upper through hole 11, and its bottom end communicates with the lower through hole 11, and the inside of the filter cloth bag 10 passes through the upper through hole. The through hole 11 communicates with the third chamber 19, and the interior of the filter cloth bag 10 communicates with the second chamber 20 through the lower through hole 11. The filter cloth bag 10 is used to filter dust, and the filter cloth bag 10 is cylindrical. The filter cloth bag 10 can be selected Polyester needle felt dust removal bag, acrylic dust removal bag, PPS dust removal bag, glass fiber filter bag, etc.; the side wall of the third chamber 19 is provided with an air inlet connected to the outside of the box body 1, and the inner wall of the third chamber 19 has an air inlet An exhaust fan 18 is installed at the place, and the exhaust fan 18 can suck the air outside the casing 1 into the third chamber 19; the side wall of the first chamber 16 is provided with an air outlet communicating with the outside of the casing 1; the purification device When working in the coal mine tunnel, start the exhaust fan 18 to draw the air with pulverized coal outside the box 1 into the third chamber 19, and the air with pulverized coal passes through the first transverse partition in the third chamber 19 The through hole 11 on 14 enters the filter cloth bag 10, and the filter cloth bag 10 filters the coal powder in the air. The pulverized coal that comes down falls into the second chamber 20 through the through hole 11 of the second transverse partition 17 under the action of gravity and is collected in the second chamber 20; Next, air enters the inside of the box body 1 through the air inlet, and flows out of the box body 1 through the air outlet. The air inlet, the third chamber 19, the filter cloth bag 10, the first chamber 16 and the air outlet form an airflow channel.

As a preferred embodiment, in this embodiment, as shown in Figure 1 and Figure 2, a box door 2 is provided on the front side of the box body 1, and the box door 2 simultaneously covers the first chamber 16, the second chamber 20 and the The third chamber 19, after opening the box door 2, can facilitate the maintenance of parts such as the filter cloth bag 10 installed in the first chamber 16, and after opening the box door 2, can facilitate the exhaust fan installed in the third chamber 19 18 for maintenance, after opening the box door 2, it is also convenient to clean up the coal powder accumulated in the second chamber 20; specifically, the left end of the box door 2 is hinged with the left side wall of the box body 1, and the right end of the box door 2 It is connected with the right side wall of the box body 1 through a lock. There is a sealing ring between the contact interface between the box door 2 and the box body 1. The sealing ring can seal the gap between the box door 2 and the box body 1 to prevent the box body from 1 The internal air leaks from the gap to ensure the airtight performance of the inside of the box 1.

As a preferred embodiment, in the present embodiment, as shown in Figure 1, an observation port is provided on the box door 2, and the observation port is positioned at the side wall of the second chamber 20, and a transparent observation window 3 is installed at the observation port. The observation window 3 can facilitate the observation of the accumulation of pulverized coal inside the second chamber 20 .

As a preferred implementation, in this embodiment, the bottom of the box body 1 is provided with a plurality of road wheels 5 with brakes, which can facilitate the movement and parking of the purification device.

As a preferred embodiment, in this embodiment, as shown in Figure 3, the side wall of the third chamber 19 is provided with a plurality of air inlets, and each air inlet outlet is equipped with an exhaust fan 18, and a plurality of exhaust fans 18 are used to Can increase air volume.

The working principle and technical effect of this embodiment are as follows: in the process of underground coal mining in the coal mine, the air in the coal mine tunnel is mixed with a lot of coal powder, and the purification device is placed in the coal mine tunnel, and the air in the tunnel can be filtered by using the purification device , filter out the pulverized coal in the air, reduce the dust concentration in the air; when the purification device is in use, energize the exhaust fan 18, and use the exhaust fan 18 to suck the air carrying the pulverized coal outside the casing 1 into the third inside the casing 1 In the chamber 19, under the action of the air flow, the air carrying the pulverized coal enters the third chamber 19, and flows from the top of the third chamber 19 to the filter cloth bag 10 through each through hole 11 on the first transverse partition 14 , the filter cloth bag 10 filters the air carrying pulverized coal, blocks the coal powder in the filter cloth bag 10, the filtered air enters the first chamber 16, and is discharged out of the box body 1 through the air outlet on the side wall of the first chamber 16 , because the second chamber 20 is a closed chamber and does not form air circulation with the outside of the box body 1, so the air entering the filter bag 10 can only pass through the filter bag 10 into the first chamber 16, and then be discharged to the box body through the air outlet 1, and the coal powder filtered by the filter cloth bag 10 falls into the through hole 11 on the second transverse partition 17 from the filter cloth bag 10 under the action of gravity, and then falls into the second chamber through the through hole 11 In the chamber 20, the pulverized coal occupies the space in the second chamber 20, and the air in the squeezed second chamber 20 is discharged through the through hole 11; the purification device is used to remove dust from the air in the coal mine tunnel, and reduce the air in the tunnel. The concentration of pulverized coal can collect and filter the pulverized coal, which can reduce the waste of pulverized coal; what needs to be explained here is that the purification device is not only suitable for filtering the pulverized coal in the air in coal mine tunnels, but also suitable for underground mines in non-coal mines. The air is dedusted during the mining process, and it is also suitable for other indoor dedusting.

Example 2

This embodiment further describes the technology of Embodiment 1. As shown in Figures 1 to 3, an air outlet joint 4 is installed at the air outlet of the outer wall of the box body 1, and the air outlet joint 4 is connected to the air inlet duct of the ventilation system. Connected, the air filtered by the purification device is directly sent to the ventilation system, and the dust-reduced air enters the ventilation system to prevent the ventilation system from being blocked by pulverized coal.

The working principle and technical effect of this embodiment are as follows: in the process of underground coal mining in the coal mine, the air in the coal mine tunnel is mixed with a lot of coal powder, and the purification device is placed in the coal mine tunnel, and the air in the tunnel can be filtered by using the purification device , to filter out the pulverized coal in the air; when the purification device is in use, the air carrying pulverized coal outside the box body 1 passes through the filter cloth bag 10 to filter out the pulverized coal in the inside of the box body 1, and the filtered air enters the first chamber 16 , enter the air outlet joint 4 from the air outlet on the side wall of the first chamber 16, and enter the air inlet pipe of the ventilation system from the air outlet joint 4, and the air filtered by the purification device is directly sent to the ventilation system, and the air after dust reduction enters The ventilation system can prevent the ventilation system from being blocked by pulverized coal, and the filtered air is discharged to the ground through the ventilation system, which can also reduce environmental pollution.

Example 3

This embodiment further describes the technology of Embodiment 2. As shown in Figures 2 and 3, the side wall of the second chamber 20 is provided with a notch communicating with the outside of the box body 1, and a seal is installed at the notch. The hatch 6, by opening the airtight hatch 6, can facilitate the cleaning of coal powder in the second chamber 20.

As a preferred embodiment, in this embodiment, as shown in Figure 3, a notch is provided on the right side wall of the box body 1, the notch is stepped, and the sealing hatch 6 is embedded in the notch, and the sealing hatch 6 The front end is hinged with the right side wall of the box body 1, the rear end of the sealed hatch door 6 is connected with the right side wall of the box body 1 through a lock, and the contact between the sealed hatch door 6 and the step at the notch on the right side wall of the box body 1 A sealing ring is arranged between the interfaces, and the gap between the airtight hatch 6 and the box body 1 can be sealed by using the sealing ring, so as to prevent the air inside the second chamber 20 from leaking from the gap and ensure the airtightness inside the second chamber 20 .

The working principle and technical effects of this embodiment are as follows: use the purification device to filter the air in the coal mine tunnel. After running for a period of time, you can observe the accumulation of coal powder inside the second chamber 20 through the observation window 3. If the second chamber When pulverized coal is more in 20, can shut down and open sealing hatch 6, clean up the pulverized coal in the second chamber 20, pulverized coal is collected, can reduce the waste of pulverized coal.

Example 4

The present embodiment further illustrates the technology of embodiment 3. As shown in FIG. They are all located inside the funnel 9, and the pulverized coal falling through each through hole 11 can enter the funnel 9; the second chamber 20 is provided with a collection bag 7, and the top opening end of the collection bag 7 is detachable from the bottom outlet end of the funnel 9 Type connection, pulverized coal can enter in the collection bag 7 through funnel 9, and collection bag 7 collects pulverized coal.

As a preferred embodiment, in this embodiment, as shown in Figure 3, the top opening end of the collection bag 7 and the bottom outlet end of the funnel 9 are detachably connected by a first fastener 8, and the collection bag 7 The top opening end is enclosed within the bottom outlet end of funnel 9, and the first fastener 8 can be selected throat hoop, hoop or hoop, and tightening the throat hoop can connect the top opening end of collection bag 7 to the bottom outlet end of funnel 9. Tighten and unscrew the throat clamp to separate the collection bag 7 from the funnel 9; it should be noted here that the throat clamp is a prior art device and is commonly used in various pipeline connections, and its specific structure will not be described here. and principle.

As a preferred embodiment, in this embodiment, the funnel 9 is made of transparent material, and the observation window 3 facilitates observation of the coal powder collection inside the funnel 9 .

Example 5

This embodiment further describes the technology of Embodiment 4. As shown in Figures 3 to 6, a rotating shaft 27 is arranged between the first transverse partition 14 and the second transverse partition 17, and the rotating shaft 27 is along the vertical direction. Extending, a plurality of filter cloth bags 10 are distributed circularly along the axial direction of the rotating shaft 27 on the outside of the rotating shaft 27, specifically, the plurality of through holes 11 on the first transverse partition 14 are distributed circularly, and the second transverse partition 17 A plurality of through holes 11 on the top are circularly distributed; the top of the first transverse partition 14 is equipped with a driving motor 12, and the top of the rotating shaft 27 is connected with the driving motor 12, and the driving motor 12 can drive the rotating shaft 27 to rotate, and the bottom of the rotating shaft 27 end is rotatably connected to the top of the second transverse partition 17; specifically, the first transverse partition 14 is provided with a jack for the shaft 27 to pass through, and a gasket is provided between the driving motor 12 and the first transverse partition 14. Or a sealing ring is provided between the rotating shaft 27 and the jack to prevent the air in the third chamber 19 from entering the first chamber 16 from the gap between the jack and the rotating shaft 27; Bearing, the bottom end of rotating shaft 27 is connected with bearing rotation, utilizes bearing to support rotating shaft 27, improves the stability of rotating shaft 27; Pat the filter cloth bag 10 to make the coal dust attached to the filter cloth bag 10 drop.

Example 6

This embodiment further describes the technology of Embodiment 5. As shown in Figures 3 to 6, a plurality of scrapers 13 are radially distributed on the rotating shaft 27, and one end of the scraper 13 is fixedly mounted on the rotating shaft 27, and The other end extends laterally, and the distance between the end face of the other end and the outer wall of the rotating shaft 27 is greater than the distance between the outer wall of the filter bag 10 and the outer wall of the rotating shaft 27. When the rotating shaft 27 rotates, each scraper 13 rotates with the rotating shaft 27, and the scraper 13 The far end of the filter bag 10 can be in contact with the filter bag 10 and the top of the filter bag 10 will be depressed, so that the coal powder attached to the inner wall of the filter bag 10 will be shaken and dropped; specifically, the drive motor 12 can be a dust-proof stepping motor. Or the servo motor can control the rotating speed of the rotating shaft 27. When the rotating shaft 27 rotates, each scraper 13 sweeps each filter bag 10 in turn to form a pat on the filter bag 10; the purification device can utilize the scraper 13 to pat Filter cloth bag 10, guarantee the filter effect of filter cloth bag 10, also can utilize scraper 13 to pat filter cloth bag 10 when shutting down, the coal powder that 10 inner side walls are attached falls and settles.

Example 7

This embodiment further describes the technology of Embodiment 6. As shown in FIGS. Connecting sleeves 23 are installed at 11 locations, and connecting pipes 22 are provided on the top and bottom ends of each filter cloth bag 10. One end of the connecting pipe 22 is detachably connected to the filter cloth bag 10, and the other end is rotationally connected to the connecting sleeve 23. The middle part of each connecting pipe 22 is provided with a first gear 25, and the rotating shaft 27 is provided with two second gears 21, wherein one of the second gears 21 meshes with each first gear 25 above the filter bag 10, and the other second gear The second gear 21 meshes with each first gear 25 below the filter cloth bag 10. When the rotating shaft 27 rotates, the second gear 21 can drive the first gear 25, thereby controlling the rotation of the connecting pipe 22. The connecting pipe 22 drives the filter cloth bag 10 to rotate. When the cloth bag 10 is fixed and does not rotate, the rotation of each scraper 13 can only sweep a part of the side wall of the filter cloth bag 10, and when the filter cloth bag 10 rotates, the scraper 13 can sweep more side walls of the filter cloth bag 10, so that more Efficiently shake off the pulverized coal attached to the inner wall of the filter bag 10; rotating the filter bag 10 can also reduce the adhesion of coal powder to the inner wall of the filter bag 10 and improve the filtering effect of the filter bag 10.

As a preferred embodiment, in this embodiment, as shown in Figures 3 to 5, the filter cloth bag 10 is set outside the connecting pipe 22, and the filter cloth bag 10 and the connecting pipe 22 are detachable through the second fastener 24 type fixed connection, the second fastener 24 can be a throat hoop or a metal wire or a cable tie; wherein, when the filter cloth bag 10 is connected to the connecting pipe 22 with a metal wire, the metal wire is wound outside the filter cloth bag 10 so that it will The filter cloth bag 10 is tightened on the connecting pipe 22, and a multi-circle groove can also be provided on the outer wall of the connecting pipe 22, so that the metal wire can wrap the filter cloth bag 10 tightly.

As a preferred embodiment, in this embodiment, as shown in Figures 3 to 5, a sealed bearing 26 is provided between the connecting pipe 22 and the connecting sleeve 23, and the sealed bearing 26 is used to realize the connection between the connecting pipe 22 and the connecting sleeve 23. Rotationally connected, and can form a seal at the rotating part of the connecting pipe 22 and the connecting sleeve 23, preventing dust from entering the first chamber 16 from here.

Claims (7)

1. A coal mine tunnel dust removal and purification device comprises a casing (1), and the inside of the casing (1) passes through a vertical partition (15), a first transverse partition (14) and a second transverse partition (17) Divided into three sealed chambers, the first transverse partition (14) is located above the second transverse partition (17), and the sealed cavity between the first transverse partition (14) and the second transverse partition (17) is The first chamber (16), the sealed chamber below the second transverse partition (17) is the second chamber (20), and the other sealed chamber is the third chamber (19), characterized in that: the first A plurality of through holes (11) are provided on the transverse partition (14) and the second transverse partition (17), and the plurality of through holes (11) on the first transverse partition (14) are connected with the second transverse partition (17). A plurality of through-holes (11) on the dividing plate (17) correspond one-to-one in the vertical direction, and filter cloth bags (10) are all arranged between the two through-holes (11) facing up and down, and the top of the filter cloth bags (10) It communicates with the upper through hole (11), and its bottom end communicates with the lower through hole (11). The inside of the filter cloth bag (10) communicates with the third chamber (19) through the upper through hole (11). The filter cloth bag The inside of (10) communicates with the second chamber (20) through the through hole (11) below, and the filter cloth bag (10) is used for filtering dust; ) is externally connected to the air inlet, and an exhaust fan (18) is installed at the air inlet on the inner side wall of the third chamber (19); the side wall of the first chamber (16) is provided with an air outlet connected to the outside of the box body (1) . 2. The coal mine tunnel dust removal and purification device according to claim 1, characterized in that: an air outlet joint (4) is installed at the air outlet of the outer wall of the box body (1), and the air outlet joint (4) is connected with the ventilation system. The air intake duct is connected. 3. The coal mine tunnel dust removal and purification device according to claim 1, characterized in that: the side wall of the second chamber (20) is provided with a notch communicating with the outside of the box body (1), and a notch is installed at the notch Seal hatch (6). 4. The coal mine tunnel dust removal and purification device according to claim 3, characterized in that: a funnel (9) is installed at the bottom of the second transverse partition (17), and each of the second transverse partitions (17) The bottom ends of the through holes (11) are all located inside the funnel (9); the second chamber (20) is provided with a collection bag (7), and the top opening end of the collection bag (7) is connected to the bottom outlet end of the funnel (9). Detachable connection. 5. The coal mine tunnel dust removal and purification device according to claim 4, characterized in that: a rotating shaft (27) is arranged between the first transverse partition (14) and the second transverse partition (17), and the rotating shaft (27 ) extends in the vertical direction, and a plurality of filter cloth bags (10) are circularly distributed on the outside of the rotating shaft (27) along the axial direction of the rotating shaft (27); the top of the first transverse partition (14) is equipped with a drive motor (12 ), the top of the rotating shaft (27) is connected to the driving motor (12), and the bottom end of the rotating shaft (27) is connected to the top of the second transverse partition (17); A scraper (13), scraper (13) can be used for flapping filter cloth bag (10) when rotating with rotating shaft (27). 6. The coal mine tunnel dust removal and purification device according to claim 5, characterized in that: a plurality of said scrapers (13) are radially distributed on the rotating shaft (27), and one end of the scraper (13) is fixedly installed on the rotating shaft ( 27), the other end extends laterally, and the distance between the end surface of the other end and the outer wall of the rotating shaft (27) is greater than that of the outer wall of the filter bag (10) from the outer wall of the rotating shaft (27). 7. The coal mine tunnel dust removal and purification device according to claim 5 or 6, characterized in that: the through holes (11) at the bottom of the first transverse partition (14) and the second transverse partition (17) Connecting sleeves (23) are installed at each through hole (11) at the top of each filter bag (10), and connecting pipes (22) are provided at the top and bottom of each filter cloth bag (10), and one end of the connecting pipe (22) is connected to the filter cloth bag ( 10) Detachable connection, the other end of which is rotationally connected with the connecting sleeve (23); the middle part of each connecting pipe (22) is provided with a first gear (25), and the rotating shaft (27) is provided with two second gears. Gears (21), one of the second gears (21) meshes with each first gear (25) above the filter bag (10), and the other second gear (21) meshes with each first gear below the filter bag (10) (25) ENGAGE.

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