Mining air duct filtering and dust removing structure

Abstract

The invention belongs to the technical field of coal mine air ducts, and provides a mining air duct filtering and dust removing structure which comprises an air duct body, a first supporting plate is fixedly installed in the air duct body, a rotating plate is rotatably installed on the first supporting plate, and a first rotating power piece for driving the rotating plate to rotate is fixedly installed on the first supporting plate; a plurality of groups of filter screens are arranged in the rotating plate; a partition plate is fixedly installed on the outer side face of the air duct body, and a through groove is formed in the middle of the partition plate, so that the technical problem that in the prior art, when cleaning is conducted, the air duct needs to be stopped, a filter screen is detached and cleaned, and the air conveying effect of the air duct is affected is solved. The grabbing assemblies in one set of replacement cover take down the filter screen to be cleaned from the rotating plate, then the clean filter screen is installed on the rotating plate, replacement can be completed, and the filter screen replacement and cleaning device can be widely applied to the filter screen replacement and cleaning operation scene.

Description

Technical Field

[0001] The invention belongs to the technical field of coal mine air ducts, and in particular relates to a filtering and dust removal structure of a mine air duct. Background Art

[0002] Coal mine air ducts are flexible pipes used in tunnels, coal mines, subways, and underground to guide air flow in a certain direction. Depending on the manufacturing materials, there are flexible air ducts made of canvas, artificial leather, plastic, rubber, and metal air ducts made of iron sheets and aluminum plates.

[0003] In the prior art, air is input into the coal mine by means of a blower. However, during the mining operation, part of the dust floating in the coal mine will float to the outside, and the air outside the coal mine will be mixed with dust. Therefore, a large amount of dust will be mixed in the air input into the coal mine by the blower. The air inlet end of the existing blower is generally fixed with a filter. After long-term use of the filter, the filter will be clogged by dust, affecting the air input of the blower, thus posing a safety hazard. In response to the above-mentioned technical problems, the applicant has retrieved some prior art, such as the Chinese patent with patent announcement number CN217632535U. When in use, the filter is pressed to separate the card column from the No. 1 circular hole on the card plate, and then the filter is rotated to disassemble the filter, thereby cleaning the dust that clogs the filter. However, each time the filter is cleaned, the use of the blower needs to be stopped and the filter needs to be disassembled for cleaning, which results in the blower being unable to continuously transport gas, affecting the gas transmission effect of the blower. Summary of the invention

[0004] The purpose of the present invention is to provide a mining air duct filtering and dust removal structure, aiming to solve the technical problem in the prior art that the air duct needs to be stopped for cleaning and the filter screen needs to be removed for cleaning, which affects the air supply effect of the air duct.

[0005] The present invention is implemented as follows: a dust removal structure for a mine air duct includes an air duct body, a first support plate is fixedly installed in the air duct body, a rotating plate is rotatably installed on the first support plate, and a first rotating power member that drives the rotating plate to rotate is fixedly installed on the first support plate, and multiple groups of filter screens are arranged in the rotating plate; A partition is fixedly installed on the outer side of the air duct body, a through groove is opened in the middle of the partition, replacement covers are slidably installed on both sides of the partition, servo modules for driving the replacement cover to move are arranged on both sides of the partition, the replacement cover extends into the air duct body and the replacement cover is in sliding contact with the rotating plate, a grabbing assembly for grabbing the filter is arranged in the replacement cover, a protective cover covering the replacement cover is arranged on the partition, a collecting assembly for collecting impurities on the filter is arranged on the protective cover, and an aerodynamic assembly for driving the air flow in the air duct body and cleaning the filter is arranged in the air duct body.

[0006] Further technical solution: the outer side surface of the rotating plate is in sliding contact with the inner wall of the air duct body, and a plurality of groups of penetrating installation grooves are provided on the rotating plate. The plurality of groups of installation grooves are distributed in a circular array around the axis of the rotating plate. A filter frame is slidably installed in the installation groove, and the filter net is fixedly installed in the filter frame, and the filter frame is a magnetic material.

[0007] Further technical solution: a fixing groove is opened on the surface of the installation groove close to the axis of the rotating plate, two groups of connecting areas are arranged between the fixing groove and the installation groove, a fixing plate is slidably installed in the fixing groove, both ends of the fixing plate extend from the connecting position between the fixing groove and the installation groove, and both ends of the fixing plate are provided with inclined structures, a telescopic rod is fixedly installed in the fixing groove, the telescopic rod is distributed along the radial direction of the rotating plate and the telescopic rod is fixedly connected to the fixing plate, a first elastic member is fixedly installed in the fixing groove, and the first elastic member is fixedly connected to the fixing plate.

[0008] Further technical solution: The grabbing assembly includes a telescopic part, which is fixedly installed in the replacement cover, a horizontal plate is fixedly installed at the output end of the telescopic part, and electromagnets are fixedly installed at both ends of the horizontal plate. The electromagnets adsorb the filter frame after being energized.

[0009] Further technical solution: The aerodynamic component includes a second support plate, the second support plate is fixedly installed in the wind tube body, a rotating shaft is rotatably installed on the second support plate, a first fan blade is fixedly installed on the rotating shaft, and a second rotating power component that drives the rotating shaft to rotate is fixedly installed on the second support plate.

[0010] Further technical solution: The aerodynamic component also includes an air collecting duct, which is fixedly installed in the air duct body. A cleaning shaft coaxially arranged with the air collecting duct is rotatably installed in the air duct body. A second fan blade is fixedly installed on the cleaning shaft and the cleaning shaft is rotatably connected to the rotating shaft through a gear set. The air outlet end of the air collecting duct is connected to an air supply duct, and the end of the air supply duct away from the air collecting duct is connected to one of the groups of replacement covers.

[0011] Further technical solution: The collecting component includes a collecting trough, which is opened at the bottom of the protective cover and is located in the projection area of ​​one group of replacement covers to the bottom of the protective cover, a baffle for covering the collecting trough is slidably installed at the bottom of the protective cover, a second elastic member connected to the baffle is fixedly installed at the bottom of the protective cover, a cloth bag covering the baffle is arranged at the bottom of the protective cover, and a lower pressure frame is fixedly installed on the replacement cover corresponding to the collecting trough.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. Isolate the filter to be replaced by two sets of replacement covers. At this time, the air in the air duct body can flow normally through other sets of filters. The replacement cover away from the filtering surface of the filter carries the cleaned filter through the grabbing assembly, and then the filter to be cleaned is removed from the rotating plate through the grabbing assembly in the other set of replacement covers. Then, the clean filter is installed on the rotating plate to complete the replacement. Subsequently, the rotating plate is driven by the first rotating power member to rotate the set angle so that the next set of filters is located below the rotating plate. The above steps are repeated to replace the filters, thereby realizing the cyclic replacement and cleaning of the filters. When replacing the filters, the group of filters can be replaced separately to avoid affecting the filtration of the air by other groups of filters, thereby ensuring the filtration efficiency of the air in the air duct body.

[0013] 2. A cavity is formed by the protective cover, the replacement cover and the partition, and the cavity is separated by the filter. The cavity into which the subsequent air enters is located on the side of the non-filtering surface of the filter. Since the collecting component is connected to the cavity and the outside world at the same time, the air will pass through the filter and leave the cavity through the collecting component, and the air can only pass through the filter in the through groove. When the high-speed air passes through the filter, it can blow off the impurities attached to the filtering surface. The impurities follow the air into the collecting component and are collected, thereby completing the cleaning operation of the filter. During the cleaning and installation process, it can be ensured that the air is always cleaned from the non-filtering surface of the filter. After subsequent installation, the filtering surface of the filter is in contact with the unfiltered air, ensuring that the filter always filters the air with the same surface, avoiding the use of different surfaces of the filter at the same time, resulting in residual dust entering the filtered air, and further improving the cleaning effect and filtering effect of the filter.

[0014] 3. In the process of cleaning the filter, the protective cover, replacement cover and partition form a cavity and the air flow channel formed by the collection component, so that the filter is always isolated during the cleaning process to prevent impurities from affecting the air duct body and the external environment during the cleaning process. The cleaned impurities are uniformly collected and sealed to prevent the collected impurities from entering the protective cover upward, thereby ensuring the clean state of the protective cover and preventing the presence of impurities in the protective cover from causing the impurities to adhere to the non-filtering surface of the filter, thereby ensuring the cleaning effect of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 It is a schematic diagram of the structure inside the air cylinder body of the present invention.

[0017] Figure 3 It is a schematic cross-sectional view of the internal structure of the blower body of the present invention.

[0018] Figure 4 It is a schematic diagram of the cross-sectional structure of the air duct body in the present invention.

[0019] Figure 5 It is a structural schematic diagram of the rotating plate in the present invention.

[0020] Figure 6 It is a schematic diagram of the cross-sectional structure of the rotating plate in the present invention.

[0021] Figure 7 for Figure 6 A magnified schematic diagram of the A1 region in the middle.

[0022] Figure 8 It is a schematic diagram of the structure of the replacement cover in the present invention.

[0023] In the accompanying drawings: 1. air duct body; 2. first support plate; 3. rotating plate; 4. mounting slot; 5. fixing slot; 6. telescopic rod; 7. fixing plate; 8. first elastic member; 9. filter frame; 10. filter screen; 11. first rotating power member; 12. second support plate; 13. second rotating power member; 14. rotating shaft; 15. first fan blade; 16. partition; 17. through slot; 18. protective cover; 19. servo module; 20. replacement cover; 21. telescopic member; 22. horizontal plate; 23. electromagnet; 24. lower pressure frame; 25. collecting tank; 26. baffle; 27. second elastic member; 28. cloth bag; 29. ​​air collecting pipe; 30. cleaning shaft; 31. second fan blade; 32. gear set; 33. air supply pipe; 34. grab assembly; 35. collecting assembly; 36. aerodynamic assembly. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0025] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0026] like Figure 1-Figure 8 As shown, a mining air duct filtering and dust removal structure provided by the present invention comprises an air duct body 1, a first support plate 2 is fixedly installed in the air duct body 1, a rotating plate 3 is rotatably installed on the first support plate 2, and a first rotating power member 11 that drives the rotating plate 3 to rotate is fixedly installed on the first support plate 2, and a plurality of filter screens 10 are arranged in the rotating plate 3; A partition 16 is fixedly installed on the outer side of the air duct body 1, and a through groove 17 is opened in the middle of the partition 16. Replacement covers 20 are slidably installed on both sides of the partition 16. Servo modules 19 for driving the replacement cover 20 to move are arranged on both sides of the partition 16. The replacement cover 20 extends into the air duct body 1 and the replacement cover 20 is in sliding contact with the rotating plate 3. A grabbing component 34 for grabbing the filter 10 is arranged in the replacement cover 20, a protective cover 18 covering the replacement cover 20 is arranged on the partition 16, and a collecting component 35 for collecting impurities on the filter 10 is arranged on the protective cover 18. An aerodynamic component 36 for driving the air flow in the air duct body 1 and cleaning the filter 10 is arranged in the air duct body 1.

[0027] In actual application of this embodiment, the air cylinder body 1 is fixed, and the air in the air cylinder body 1 is pushed by the aerodynamic component 36. The air enters the air cylinder body 1 from one end of the air cylinder body 1 and is filtered by the filter 10. The filtered air flows along the air cylinder body 1. When the filter 10 needs to be replaced after long-term use, the servo module 19 drives the two groups of replacement covers 20 to move upward to the set position at the same time. At this time, the replacement cover 20 contacts the side of the rotating plate 3 and makes the filter 10 directly below completely surrounded by the two groups of replacement covers 20, so that the group of filter 10 is isolated. At this time, the air in the air duct body 1 can flow normally through the other groups of filter 10. The replacement cover 20 away from the filtering surface of the filter 10 carries the cleaned filter 10 through the grabbing assembly 34, and then the filter 10 to be cleaned is removed from the rotating plate 3 by the grabbing assembly 34 in the other group of replacement cover 20, and then the clean filter 10 is installed on the rotating plate 3, and then the replacement cover 20 moves downward; When the bottom surface of the replacement cover 20 contacts the bottom surface of the protective cover 18, it stops. At this time, the upper surface of the replacement cover 20 is flush with the inner wall of the air duct body 1 to avoid affecting the air flow in the air duct body 1. Then the grabbing assembly 34 moves the removed filter 10 into the through groove 17. The filter 10 completely covers the through groove 17. The protective cover 18, the replacement cover 20 and the partition 16 form a cavity, and the cavity is separated by the filter 10. At this time, the aerodynamic assembly 36 delivers part of the filtered air into the cavity, and the air enters the cavity. Located on the non-filtering side of the filter 10, since the collecting assembly 35 is connected to the cavity and the outside at the same time, the air will pass through the filter 10 and leave the cavity through the collecting assembly 35, and the air can only pass through the filter 10 in the through groove 17. When the high-speed air passes through the filter 10, it can blow off the impurities attached to the filtering surface. The impurities follow the air into the collecting assembly 35 and are collected, thereby completing the cleaning operation of the filter 10. When the cleaned filter 10 is subsequently replaced, it will be grabbed by another set of grabbing assemblies 35; When it is necessary to replace other filters 10 later, the first rotating power part 11 drives the rotating plate 3 to rotate to a set angle so that the next group of filters 10 is located below the rotating plate 3. The above steps can be repeated to replace the filters 10, thereby realizing the cyclic replacement and cleaning of the filters 10. When replacing the filters 10, the group of filters 10 can be replaced separately and independently to avoid affecting the filtration of air by other groups of filters 10, thereby ensuring the filtration efficiency of the air in the wind cylinder body 1. At the same time, during the cleaning and installation process, it can be ensured that the air is always cleaned from the non-filtering surface of the filter 10. After subsequent installation, the filtering surface of the filter 10 contacts the unfiltered air to ensure that the filter 10 always filters the air with the same surface, thereby avoiding the use of different surfaces of the filter 10 at the same time, which causes residual dust to enter the filtered air, thereby further improving the cleaning effect and filtering effect of the filter 10.

[0028] In an example of this embodiment, the first rotating power component 11 is a first motor, and of course it can also be other components that can output rotational power such as a hydraulic motor. The first motor drives the rotating plate 3 to rotate, thereby adjusting different filter screens 10 to the replacement position.

[0029] like Figure 2-7 As shown, a mining air duct filtering and dust removal structure provided by the present invention is provided, wherein the outer side surface of the rotating plate 3 is in sliding contact with the inner wall of the air duct body 1, and a plurality of groups of penetrating mounting grooves 4 are provided on the rotating plate 3, and the plurality of groups of mounting grooves 4 are distributed in a circular array around the axis of the rotating plate 3, and a filter frame 9 is slidably installed in the mounting groove 4, and a filter screen 10 is fixedly installed in the filter frame 9, and the filter frame 9 is a magnetic material.

[0030] Specifically, a fixing groove 5 is opened on the surface of the installation groove 4 close to the axis of the rotating plate 3, and two groups of connecting areas are set between the fixing groove 5 and the installation groove 4. A fixing plate 7 is slidably installed in the fixing groove 5, and both ends of the fixing plate 7 extend from the connecting position between the fixing groove 5 and the installation groove 4. The ends of the fixing plate 7 are both provided with inclined structures. A telescopic rod 6 is fixedly installed in the fixing groove 5, and the telescopic rod 6 is distributed along the radial direction of the rotating plate 3 and the telescopic rod 6 is fixedly connected to the fixing plate 7. A first elastic member 8 is fixedly installed in the fixing groove 5, and the first elastic member 8 is fixedly connected to the fixing plate 7.

[0031] When the filter screen 10 is in use, the filter screen 10 is fixedly installed in the filter frame 9. When the filter frame 9 moves in the installation groove 4, it will first contact with the fixing plate 7 on one side. Due to the inclined structure at the end of the fixing plate 7, the filter frame 9 will press down the fixing plate 7 and compress the first elastic member 8. When the filter frame 9 completely passes over one side wall of the fixing plate 7, the fixing plate 7 is moved upward under the action of the first elastic member 8. At this time, the two side walls of the fixing plate 7 are in contact with the two side surfaces of the filter frame 9, thereby realizing the limited fixation of the filter frame 9; ensuring the stability of the filter screen 10 during use. When the filter screen 10 is replaced subsequently, a new group of filter frames 9 is moved in the installation groove 4 and presses down the fixing plate 7. When the two groups of filter frames 9 are in contact with each other, the fixing plate 7 completely leaves the installation groove 4, and then the previous group of filter frames 9 can be moved freely, which is convenient for replacing the filter screen 10.

[0032] In an example of the present invention, the first elastic member 8 is a first spring, and of course, it can also be other elastic members such as an elastic ball, and the first spring applies a thrust to the fixing plate 7 .

[0033] like Figure 8 As shown, a mining air duct filtering and dust removal structure provided by the present invention, the grabbing assembly 34 includes a telescopic member 21, the telescopic member 21 is fixedly installed in the replacement cover 20, a horizontal plate 22 is fixedly installed at the output end of the telescopic member 21, and electromagnets 23 are fixedly installed at both ends of the horizontal plate 22. After the electromagnet 23 is energized, the filter frame 9 is adsorbed.

[0034] In actual application of this embodiment, after the replacement cover 20 moves to the replacement position, the telescopic member 21 extends so that the cross plate 22 drives the strip-shaped electromagnet 23 to move, and the electromagnet 23 stops moving after contacting the side of the filter frame 9. Thereafter, the electromagnet 23 is energized. After energized, the electromagnet 23 adsorbs the filter frame 9, thereby realizing the connection between the filter frame 9 and the replacement cover 20. Subsequently, the electromagnet 23 can be disconnected from the filter frame 9 by turning off the power.

[0035] In an example of the present invention, the telescopic member 21 is an electric telescopic rod, and of course it can also be other components that can actively change the length, such as a hydraulic cylinder, and the cross plate 22 is driven to move by the electric telescopic rod.

[0036] like Figure 2-Figure 4 As shown, a mining air duct filtering and dust removal structure provided by the present invention is provided, and the aerodynamic component 36 includes a second support plate 12, and the second support plate 12 is fixedly installed in the air duct body 1, and a rotating shaft 14 is rotatably installed on the second support plate 12, and a first fan blade 15 is fixedly installed on the rotating shaft 14, and a second rotating power part 13 that drives the rotating shaft 14 to rotate is fixedly installed on the second support plate 12.

[0037] Specifically, the aerodynamic component 36 also includes an air collecting duct 29, which is fixedly installed in the air duct body 1. A cleaning shaft 30 coaxially arranged with the air collecting duct 29 is rotatably installed in the air duct body 1. A second fan blade 31 is fixedly installed on the cleaning shaft 30, and the cleaning shaft 30 is rotatably connected to the rotating shaft 14 through a gear set 32. The air outlet end of the air collecting duct 29 is connected to an air supply duct 33, and one end of the air supply duct 33 away from the air collecting duct 29 is connected to one of the groups of replacement covers 20, and a solenoid valve is arranged on the air supply duct 33.

[0038] In actual application of this embodiment, the second rotating power member 13 drives the rotating shaft 14 and the first fan blade 15 to rotate. After the first fan blade 15 rotates, it pushes the air in the wind tube body 1 to flow, and the air flows from the filter screen 10 to the first fan blade 15. When the rotating shaft 14 rotates, the cleaning shaft 30 and the second fan blade 31 are driven to rotate through the gear set 32. Due to the existence of the air collecting pipe 29, the second fan blade 31 will promote the air flow in the air collecting pipe 29 when it rotates and transport it to the replacement cover 20 through the air supply pipe 33. At this time, the area surrounded by the replacement cover 20, the partition 16 and the protective cover 18 are all closed areas, and the closed area away from the side of the air supply pipe 33 is connected to the outside world, so that after the air enters the protective cover 18, it can only pass through the filter 10 and then leave. The high-speed flowing air after filtration passes through the filter 10 to clean the filter 10.

[0039] In one embodiment of the present invention, the second rotating power component 13 is a second motor, and of course it can also be other components such as a hydraulic motor that can output rotational power. The second motor drives the first fan blade 15 to rotate, thereby promoting the flow of air in the wind cylinder body 1. The gear set 32 ​​is a bevel gear set, and the two sets of bevel gears are respectively fixedly mounted on the rotating shaft 14 and the cleaning shaft 30.

[0040] like Figure 3 , Figure 4 As shown, a mining air duct filtering and dust removal structure provided by the present invention, the collecting component 35 includes a collecting groove 25, the collecting groove 25 is opened at the bottom of the protective cover 18 and is located in the projection area of ​​one group of replacement covers 20 to the bottom of the protective cover 18, a baffle 26 for shielding the collecting groove 25 is slidably installed at the bottom of the protective cover 18, a second elastic member 27 connected to the baffle 26 is fixedly installed at the bottom of the protective cover 18, a cloth bag 28 covering the baffle 26 is arranged at the bottom of the protective cover 18, and a lower pressure frame 24 is fixedly installed on the replacement cover 20 corresponding to the collecting groove 25.

[0041] In actual application of this embodiment, when the replacement cover 20 moves downward and contacts the bottom surface of the protective cover 18, the upper surface of the replacement cover 20 is flush with the inner wall of the air duct body 1, and the replacement cover 20 and the protective cover 18 will enclose a cavity. At the same time, when the replacement cover 20 moves downward, the lower pressure frame 24 will press down the baffle 26 to make the cavity connected with the cloth bag 28. At this time, the used filter screen 10 that has been replaced is located in the through groove 17, and the shape of the filter frame 9 and the through groove 17 is consistent, ensuring that air can only pass through the through groove 17. When the filter frame 9 enters the through groove 17, the solenoid valve on the air supply pipe 33 is opened, and the filtered air can enter the cavity through the air supply pipe 33. At this time, the air can only pass through the filter screen 1 in the through groove 17. 0, the high-speed air flow can blow off the impurities attached to the filter surface when passing through the filter 10, and the blown impurities follow the air through the collecting slot 25 into the cloth bag 28, the air leaves the cloth bag 28, and the impurities are collected in the cloth bag 28. Before replacing the filter 10 later, the valve on the air supply pipe 33 is closed, and the replacement cover 20 moves upward. At this time, under the action of the second elastic member 27, the baffle 26 closes the collecting slot 25 again, thereby preventing the collected impurities from entering the protective cover 18 upward, ensuring the clean state of the protective cover 18, and preventing the presence of impurities in the protective cover 18 from causing the impurities to adhere to the non-filtering surface of the filter 10 later, ensuring the cleaning effect of the filter 10, and cleaning the cloth bag 28 after long-term use.

[0042] In an example of the present invention, the second elastic member 27 is a second spring, and of course, it can also be other elastic components such as an elastic ball. The second spring applies a thrust to the baffle 26 to close the collecting tank 25 .

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0044] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A mining air duct filtering and dust removal structure, comprising an air duct body (1), characterized in that: A first support plate (2) is fixedly mounted in the air duct body (1), a rotating plate (3) is rotatably mounted on the first support plate (2), and a first rotating power member (11) is fixedly mounted on the first support plate (2) for driving the rotating plate (3) to rotate, and a plurality of groups of filter screens (10) are arranged in the rotating plate (3); A partition (16) is fixedly mounted on the outer side of the air duct body (1), a through slot (17) is provided in the middle of the partition (16), replacement covers (20) are slidably mounted on both sides of the partition (16), servo modules (19) are provided on both sides of the partition (16) for driving the replacement cover (20) to move, the replacement cover (20) extends into the air duct body (1) and the replacement cover (20) is in sliding contact with the rotating plate (3), a grabbing component (34) for grabbing the filter (10) is provided in the replacement cover (20), a protective cover (18) covering the replacement cover (20) is provided on the partition (16), a collecting component (35) for collecting impurities on the filter (10) is provided on the protective cover (18), and an air power component (36) for driving the air flow in the air duct body (1) and cleaning the filter (10) is provided in the air duct body (1).

2. A mining air duct filtering and dust removal structure according to claim 1, characterized in that: The outer side surface of the rotating plate (3) is in sliding contact with the inner wall of the air duct body (1). The rotating plate (3) is provided with a plurality of groups of penetrating installation grooves (4). The plurality of groups of installation grooves (4) are distributed in a circular array around the axis of the rotating plate (3). A filter frame (9) is slidably mounted in the installation groove (4). The filter screen (10) is fixedly mounted in the filter frame (9). The filter frame (9) is made of a magnetic material.

3. A mining air duct filtering and dust removal structure according to claim 2, characterized in that: A fixing groove (5) is provided on a surface of the mounting groove (4) close to the axis of the rotating plate (3); the fixing groove (5) and the mounting groove (4) are provided with two groups of connecting areas; a fixing plate (7) is slidably installed in the fixing groove (5); both ends of the fixing plate (7) extend from the connecting position between the fixing groove (5) and the mounting groove (4); both ends of the fixing plate (7) are provided with an inclined surface structure; a telescopic rod (6) is fixedly installed in the fixing groove (5); the telescopic rod (6) is distributed along the radial direction of the rotating plate (3) and the telescopic rod (6) is fixedly connected to the fixing plate (7); a first elastic member (8) is fixedly installed in the fixing groove (5); and the first elastic member (8) is fixedly connected to the fixing plate (7).

4. A mining air duct filtering and dust removal structure according to claim 2, characterized in that: The grabbing assembly (34) comprises a telescopic member (21), the telescopic member (21) being fixedly mounted in the replacement cover (20), a transverse plate (22) being fixedly mounted on the output end of the telescopic member (21), and electromagnets (23) being fixedly mounted on both ends of the transverse plate (22), and the electromagnets (23) adsorb the filter frame (9) when energized.

5. A mining air duct filtering and dust removal structure according to claim 1, characterized in that: The aerodynamic component (36) comprises a second support plate (12), the second support plate (12) being fixedly mounted in the air duct body (1), a rotating shaft (14) being rotatably mounted on the second support plate (12), a first fan blade (15) being fixedly mounted on the rotating shaft (14), and a second rotating power member (13) being fixedly mounted on the second support plate (12) for driving the rotating shaft (14) to rotate.

6. A mining air duct filtering and dust removal structure according to claim 5, characterized in that: The aerodynamic component (36) further comprises an air collecting pipe (29), the air collecting pipe (29) being fixedly mounted in the air duct body (1), a cleaning shaft (30) coaxially arranged with the air collecting pipe (29) being rotatably mounted in the air duct body (1), a second fan blade (31) being fixedly mounted on the cleaning shaft (30), and the cleaning shaft (30) being rotatably connected to the rotating shaft (14) via a gear set (32), an air supply pipe (33) being connected to the air outlet end of the air collecting pipe (29), and an end of the air supply pipe (33) away from the air collecting pipe (29) being connected to one of the replacement covers (20).

7. A mining air duct filtering and dust removal structure according to claim 1, characterized in that: The collecting assembly (35) comprises a collecting trough (25), the collecting trough (25) being opened at the bottom of the protective cover (18) and being located in the projection area of ​​one group of replacement covers (20) onto the bottom of the protective cover (18), a baffle (26) for shielding the collecting trough (25) being slidably mounted at the bottom of the protective cover (18), a second elastic member (27) connected to the baffle (26) being fixedly mounted at the bottom of the protective cover (18), a cloth bag (28) covering the baffle (26) being arranged at the bottom of the protective cover (18), and a lower pressing frame (24) being fixedly mounted on the replacement cover (20) corresponding to the collecting trough (25).

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