Dust removal equipment for coal mine safety production roadway

Abstract

The invention discloses dust removal equipment for a coal mine safety production roadway. The dust removal equipment comprises a movable vehicle body, a mounting plate, a water tank, a motor, a rotating shaft, a dust removal mechanism, a filter cartridge and a swing assembly, the movable vehicle body is movably arranged on a roadway pavement, the two mounting plates are fixedly mounted on the two sides of the movable vehicle body respectively, the water tank is fixedly mounted on the movable vehicle body, the motor is fixedly mounted on the outer side of the upper end of one mounting plate, and an output shaft of the motor rotationally penetrates through the mounting plate; the rotating shaft is rotationally arranged between the two mounting plates in a sleeving mode, one end of the rotating shaft is fixed to the output end of the motor, the dust removal mechanisms are linearly arranged on the rotating shaft, sleeving holes are formed in the two inner walls of the lower end of the water tank, energy storage springs are connected to the side walls of the two ends of the filter cartridge, and the filter cartridge is connected with the inner walls of the two sleeving holes through the energy storage springs at the two ends. The multiple swing assemblies are arranged on the filter cylinder in a linear mode.

Description

Technical Field

[0001] The present invention relates to the technical field of coal mine safety, and particularly relates to a dust removal device for a roadway in coal mine safety production. Background Art

[0002] Coal mine roadways mainly include vertical shafts, shaft bottoms, adits, crossheadings developed, and rectangular roadways in small coal mines, and mainly play roles such as transportation and air return. Since a lot of coal ash will adhere to the inner wall of the roadway during the roadway transportation process, it means that a large amount of coal ash may be inhaled into the body when coal mine workers enter and exit the operation frequently, affecting the health of the staff.

[0003] Most of the existing dust removal devices use the method of drip spraying for dust removal. This method needs to be laid synchronously according to the depth of the roadway, which is very troublesome and there are dead angles in dust reduction, resulting in low dust reduction efficiency; the spraying process continues, and the formed water-coal mixture falling on the ground will also affect the construction environment of the construction personnel; in addition, the water-coal mixture formed by spraying is easy to adhere to the nozzle, affecting the dust reduction efficiency.

[0004] Therefore, it is very necessary to invent a dust removal device for a roadway in coal mine safety production to solve the above problems. Summary of the Invention

[0005] The present invention aims at the above problems and provides a dust removal device for a roadway in coal mine safety production to solve the problem of low dust reduction efficiency.

[0006] The technical solution adopted by the present invention is as follows: It includes a mobile vehicle body, a mounting plate, a water tank, a motor, a rotating shaft, a dust removal mechanism, a filter cartridge, and a swinging assembly; the mobile vehicle body is movably arranged on the roadway surface, there are two mounting plates configured, which are respectively fixedly installed on both sides of the mobile vehicle body, the water tank is fixedly installed on the mobile vehicle body, the motor is fixedly installed on the outer side of the upper end of one of the mounting plates, and the output shaft of the motor rotates through the mounting plate, the rotating shaft is sleeved and rotatably arranged between the two mounting plates, and one end is fixed to the output end of the motor, there are multiple dust removal mechanisms configured, which are respectively linearly arranged on the rotating shaft, there are sleeve holes opened on the two inner walls at the lower end of the water tank, energy storage springs are connected to the side walls at both ends of the filter cartridge, and the filter cartridge is connected to the inner walls of the two sleeve holes through the energy storage springs at both ends respectively, there are multiple swinging assemblies configured, which are respectively linearly arranged on the filter cartridge.

[0007] Further, as a preference, the dust removal mechanism includes a collar, a first sleeve, a piston head, a first sliding rod, a first magnetic ball and a first spring; the collar is fixed on the rotating shaft, the first sleeve is fixed on the collar, the piston head is hermetically and slidably arranged in the first sleeve, one end of the first sliding rod is fixedly connected with the piston head, and the other end thereof slidably penetrates through one end of the first sleeve away from the collar, a plurality of spray holes are formed in one end of the first sleeve away from the collar, and the first magnetic ball is fixedly installed at one end of the first sliding rod away from the piston head.

[0008] Further, as a preference, the dust removal mechanism further includes a second sleeve, a second sliding rod, a second magnetic ball and a second spring; the second sleeve is fixed on the collar, and the second sleeve and the first sleeve are arranged at 180°, the second sliding rod hermetically and slidably penetrates through the second sleeve, the second magnetic ball is fixedly installed at one end of the second sliding rod away from the collar, and a through hole is formed in common between the second magnetic ball and the second sliding rod, and the second spring is connected between the inner wall of the second sleeve and the second sliding rod.

[0009] Further, as a preference, the swing assembly includes a third sleeve, a third sliding rod, a magnetic block and a return spring; the third sleeve is fixedly and communicatively arranged on the filter cartridge, the third sliding rod hermetically and slidably penetrates through the third sleeve, the magnetic block is fixed at one end of the third sliding rod away from the filter cartridge, the return spring is connected between the third sleeve and the magnetic block, a hemispherical groove is formed at one end of the magnetic block away from the third sliding rod, a guide groove is formed in the third sliding rod, and the hemispherical groove communicates with the guide groove, and an introduction hole is formed in the side wall of the third sliding rod close to the filter cartridge, and the introduction hole communicates with the guide groove.

[0010] Further, as a preference, four rotating rods rotatably penetrate through the upper end of the first sleeve, scraping blades are fixed on the rotating rods, and the scraping blades are in rotational contact with the upper surface of the first sleeve, a micro gear is fixed at the lower end of the rotating rod, four sliding grooves are formed in a circumferential manner on the side wall of the upper end of the first sleeve, a micro rack is slidably arranged in the sliding groove, and the micro rack meshes with the micro gear, a sealing block is fixed at one end of the micro rack close to each other, and the sealing block is hermetically and slidably arranged in the sliding groove, a fourth spring is connected between the micro rack and the inner wall of the sliding groove, and a ventilation hole is formed between the sliding groove and the outside of the first sleeve.

[0011] Advantages of the present invention: By the combined application of the dust reduction mechanism and the swing assembly, not only can the roadway be sprayed with dust reduction, but also dust can be sucked for dust reduction, and the dual effects improve the dust reduction effect. At the same time, each time after spraying dust reduction, a dust suction action can be completed, avoiding the water-coal mixture formed by spraying from falling to the ground and causing the ground humidity to rise, which affects the construction of the staff; During the process of spraying dust reduction, when the water-coal mixture adheres to the surface of the spray holes and hinders spraying, the four scraping blades can scrape and clean the water-coal mixture, ensuring the smooth progress of the spraying process and improving the dust reduction efficiency.

[0012] In addition to the purposes, features, and advantages described above, the present invention has other purposes, features, and advantages. The present invention will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0014] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a three-dimensional structural diagram of the dust removal mechanism and the swing assembly of the present invention; Figure 3 is a partial structural diagram of the magnetic ball two and the swing assembly of the present invention; Figure 4 is a schematic diagram of the internal structure of the first sleeve of the present invention; Figure 5 is a schematic diagram of the internal structure of the second sleeve of the present invention; Figure 6 is a schematic diagram of the internal structure of the third sleeve of the present invention; Figure 7 is an enlarged view at A of the present invention; Figure 8 is an enlarged view at B of the present invention; Figures 9 to 15 is a motion state diagram of the dust removal mechanism and the swing assembly of the present invention.

[0015] Reference numerals: 1, moving vehicle body; 2, mounting plate; 3, water tank; 4, motor; 5, rotating shaft; 6, dust removal mechanism; 7, filter cartridge; 8, swing assembly; 61, collar; 62, first sleeve; 63, piston head; 64, first sliding rod; 65, first magnetic ball; 66, first spring; 621, spray hole; 67, second sleeve; 68, second sliding rod; 69, second magnetic ball; 71, second spring; 72, through hole; 81, third sleeve; 82, third sliding rod; 83, magnetic block; 84, return spring; 831, hemispherical groove; 821, guide groove; 822, introduction hole; 91, rotating rod; 92, scraping blade; 93, micro gear; 94, chute; 95, micro rack; 96, sealing block; 97, fourth spring; 98, air vent. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] In order to make the purposes, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0017] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0018] Reference Figures 1 to 15 , a dust removal device for a coal mine safety production roadway, comprising a mobile vehicle body 1, a mounting plate 2, a water tank 3, a motor 4, a rotating shaft 5, a dust removal mechanism 6, a filter cartridge 7 and a swing assembly 8; the mobile vehicle body 1 is movably arranged on the roadway surface, two mounting plates 2 are provided, and are respectively fixedly installed on both sides of the mobile vehicle body 1, the water tank 3 is fixedly installed on the mobile vehicle body 1, the motor 4 is fixedly installed on the outer side of the upper end of one of the mounting plates 2, and the output shaft of the motor 4 rotates through and is arranged inside the mounting plate 2, the rotating shaft 5 is sleeved and rotatably arranged between the two mounting plates 2, and one end is fixed to the output end of the motor 4, a plurality of dust removal mechanisms 6 are provided, and are linearly arranged on the rotating shaft 5 respectively, two inner walls of the lower end of the water tank 3 are provided with sleeve holes, energy storage springs are connected to the side walls at both ends of the filter cartridge 7, and the filter cartridge 7 is connected to the inner walls of the two sleeve holes through the energy storage springs at both ends respectively, a plurality of swing assemblies 8 are provided, and are linearly arranged on the filter cartridge 7 respectively.

[0019] As a preferred embodiment, the dust removal mechanism 6 includes a collar 61, a first sleeve 62, a piston head 63, a first sliding rod 64, a first magnetic ball 65 and a first spring 66; the collar 61 is fixed on the rotating shaft 5, the first sleeve 62 is fixed on the collar 61, the piston head 63 is hermetically and slidably arranged inside the first sleeve 62, one end of the first sliding rod 64 is fixedly connected to the piston head 63, and the other end slides through and is arranged at the end of the first sleeve 62 away from the collar 61, a plurality of spray holes 621 are provided at the end of the first sleeve 62 away from the collar 61, and the first magnetic ball 65 is fixedly installed at the end of the first sliding rod 64 away from the piston head 63.

[0020] That is to say, when the first magnetic ball 65 is subjected to a squeezing force, the first magnetic ball 65 pushes the piston head 63 to move into the first sleeve 62 through the first sliding rod 64, so that the volume of the space above the piston head 63 increases to generate negative pressure, and then an adsorption effect on the outside can be generated through the spray holes 621; when the elastic force of the first spring 66 pushes the piston head 63 to move out of the first sleeve 62, the volume of the space above the piston head 63 decreases to generate positive pressure, and then the piston head 63 can generate an exhaust effect on the outside through the spray holes 621.

[0021] As a preferred embodiment, the dust removal mechanism 6 further includes a second sleeve 67, a second sliding rod 68, a second magnetic ball 69 and a second spring 71; the second sleeve 67 is fixed on the collar 61, and the second sleeve 67 and the first sleeve 62 are arranged at 180°, the second sliding rod 68 is hermetically and slidably arranged through the second sleeve 67, the second magnetic ball 69 is fixedly installed at one end of the second sliding rod 68 away from the collar 61, and a through hole 72 is jointly opened in the second magnetic ball 69 and the second sliding rod 68, and the second spring 71 is connected between the inner wall of the second sleeve 67 and the second sliding rod 68.

[0022] That is to say, when the second magnetic ball 69 is subjected to an extrusion force, the second magnetic ball 69 and the second sliding rod 68 move synchronously into the second sleeve 67, and the space volume between the second sliding rod 68 and the second sleeve 67 decreases, so that the second sleeve 67 can exhaust to the outside through the through hole 72; when the elastic force of the second spring 71 pushes the second sliding rod 68 to move out of the second sleeve 67, the space volume between the second sliding rod 68 and the second sleeve 67 increases, so that the second sleeve 67 can adsorb to the outside through the through hole 72.

[0023] As a preferred embodiment, the swing assembly 8 includes a third sleeve 81, a third sliding rod 82, a magnetic block 83 and a return spring 84; the third sleeve 81 is fixedly and communicatively arranged on the filter cartridge 7, the third sliding rod 82 is hermetically and slidably arranged through the third sleeve 81, the magnetic block 83 is fixed at one end of the third sliding rod 82 away from the filter cartridge 7, the return spring 84 is connected between the third sleeve 81 and the magnetic block 83, a hemispherical groove 831 is opened at one end of the magnetic block 83 away from the third sliding rod 82, a guide groove 821 is opened in the third sliding rod 82, and the hemispherical groove 831 communicates with the guide groove 821, and an inlet hole 822 is opened on the side wall of the third sliding rod 82 close to the filter cartridge 7, and the inlet hole 822 communicates with the guide groove 821.

[0024] Among them, the first magnetic ball 65 and the second magnetic ball 69 and the magnetic block 83 are opposite magnetic poles to each other.

[0025] In addition, the elastic forces of the first spring 66 and the second spring 71 are greater than the elastic force of the return spring 84, and the magnetic forces between the first magnetic ball 65 and the second magnetic ball 69 and the magnetic block 83 are much smaller than the elastic forces of the first spring 66 and the second spring 71.

[0026] Specifically, during implementation, first, connect the water tank 3 to an external water supply device so that there is always sufficient water in the water tank 3. At first, the first sleeve 62 and the second sleeve 67 are in a horizontal state, that is, the first spring 66 and the second spring 71 are in a natural elongation state, and then start the motor to start the dust reduction work; At first, the first sleeve 62 and the second sleeve 67 are in a horizontal state, that is Figure 9, the first sleeve 62 starts to rotate into the water tank 3 from above the water tank 3, that is, rotates counterclockwise. The first magnetic ball 66 first contacts the inner wall of the hemispherical groove 831 and drives the magnetic block 83 to rotate together, that is Figure 10 , since the elastic force of the first spring 66 is greater than the elastic force of the return spring 84, the magnetic block 83 and the third sliding rod 82 first move into the third sleeve 81. After moving a certain distance, the third sleeve 81 will limit the magnetic block 83. After that, since the third sleeve 81 continues to rotate upward, the inner wall of the hemispherical groove 831 will squeeze the first magnetic ball 65 to move into the first sleeve 62, so that the volume of the space above the piston head 63 increases to generate negative pressure. Furthermore, water can be quickly sucked into the space between the piston head 63 and the first sleeve 62 through the spray holes 621. When the first sleeve 62 and the second sleeve 67 rotate to the vertical state, that is Figure 11 , the amount of water inhaled reaches the maximum. Then the first sleeve 62 continues to rotate, and the squeezing force of the inner wall of the hemispherical groove 831 on the first magnetic ball 65 disappears. The first spring 66 starts to release energy. When the first sleeve 62 continues to rotate a certain angle, the limit of the hemispherical groove 831 on the first magnetic ball 65 is completely released, that is Figure 12 , the first magnetic ball 65 disengages from the hemispherical groove 831 under the elastic force of the return spring. At this time, the energy storage spring will drive the filter cartridge 7 and the third sleeve 81 to rotate to the initial position. And the elastic force of the first spring 66 on the piston head 63 is less than the squeezing force between the first magnetic ball 65 and the inner wall of the hemispherical groove 831. So the first magnetic ball 65 can overcome the friction between the piston head 63 and the inner wall of the first sleeve 62, and at the same time can push the piston head 63 to move quickly inward, so as to achieve the effect of rapid water absorption. When the squeezing force of the hemispherical groove 831 on the first magnetic ball 65 is removed, the first spring 66 will overcome the friction between the piston head 63 and the inner wall of the first sleeve 62, and at the same time push the piston head 63 to move slowly outward of the first sleeve 62, that is, the water absorption process is fast, and the drainage process is slow. Therefore, when the first sleeve 62 rotates outside the water tank 3, the water stored between the piston head 63 and the first sleeve 62 slowly sprays out through the spray holes 621, so as to atomize and reduce dust in the roadway and prevent the spread of coal dust. When the first sleeve 62 turns from above the water tank 3 to inside the water tank 3 again, at first the elastic potential energy of the first spring 66 is not completely released, so that the water that has not been sprayed can be discharged into the water tank 3, reducing the waste of water resources. When the energy release of the first spring 66 is completed, exactly the first magnetic ball 65 contacts the hemispherical groove 831 for a cyclic water absorption and spraying process.

[0027] When the second sleeve 67 rotates into the water tank 3 from above the water tank 3, the second magnetic ball 69 first contacts the inner wall of the hemispherical groove 831 and drives the magnetic block 83 to rotate together, that is Figure 13, initially, since the elastic force of the second spring 71 is greater than that of the return spring 84, the magnetic block 83 and the third slide bar 82 first move into the third sleeve 81. After moving a certain distance, the third sleeve 81 will limit the magnetic block 83. Thereafter, as the third sleeve 81 continues to rotate upward, the inner wall of the hemispherical groove 831 will squeeze the second magnetic ball 69 to move into the second sleeve 67, and the volume of the space between the second slide bar 68 and the second sleeve 67 decreases. Thus, the second sleeve 67 can discharge air through the through hole 72. And during the rotation of the second magnetic ball 69 and the magnetic block 83, the guide groove 821 and the through hole 72 always remain connected. When the first sleeve 62 and the second sleeve 67 rotate to the vertical state, that is Figure 14 , the air in the second sleeve 67 is completely discharged. Subsequently, the second sleeve 67 continues to rotate, and the squeezing force of the inner wall of the hemispherical groove 831 on the second magnetic ball 69 disappears. The second spring 71 begins to release energy. When the second sleeve 67 continues to rotate a certain angle, the limit of the hemispherical groove 831 on the second magnetic ball 69 is completely released, that is Figure 15 , the second magnetic ball 69 disengages from the hemispherical groove 831 under the elastic force of the return spring. At this time, the energy storage spring will drive the filter cartridge 7 and the third sleeve 81 to rotate to the initial position. And the elastic force of the second spring 71 on the second slide bar 68 is less than the squeezing force between the second magnetic ball 69 and the inner wall of the hemispherical groove 831. Thus, the second magnetic ball 69 can overcome the friction between the second slide bar 68 and the second sleeve 67, and at the same time can push the slide bar 67 to move quickly inward, so as to achieve the effect of rapid exhaust. And when the squeezing force of the hemispherical groove 831 on the second magnetic ball 69 is removed, the second spring 71 will overcome the friction between the piston head 63 and the first sleeve 62, and at the same time push the slide bar 67 to move slowly outward. Therefore, when the second sleeve 67 rotates outside the water tank 3, the volume of the space between the second slide bar 68 and the second sleeve 67 slowly increases. Thus, the second sleeve 67 can suck the coal dust and water-coal agglomerates in the roadway into the second sleeve 67 through the through hole 72, that is, the coal discharging process proceeds quickly and the dust suction process proceeds slowly, ensuring that the second sleeve 67 can continuously suck dust during the rotation above the water body. When the second sleeve 67 turns from above the water tank 3 to inside the water tank 3 again, initially the elastic potential energy of the second spring 71 is not completely released. Thus, the water in the water tank 3 can be sucked into the second sleeve 67 to dilute and disperse the coal dust sucked into the second sleeve 67, avoiding the formation of agglomerates sticking to the inner wall of the second sleeve 67. When the energy release of the second spring 71 is completed, exactly the second magnetic ball 69 contacts the hemispherical groove 831. Subsequently, the magnetic block 83 and the third slide bar 82 first move into the third sleeve 81, causing the inlet hole 822 to communicate with the inside of the filter cartridge 7. The inner wall of the hemispherical groove 831 will squeeze the second magnetic ball 69 to move into the second sleeve 67, and the volume of the space between the second slide bar 68 and the second sleeve 67 decreases. Thus, the coal dust in the second sleeve 67 can be discharged into the filter cartridge 7 through the through hole 72, the guide groove 821 and the inlet hole 822. Therefore, after each dust suction, the second sleeve 67 can be cleaned in turn to prevent coal dust accumulation.

[0028] In summary, the present device can both spray and dust in the roadway, and the dual functions improve the dust reduction effect. At the same time, each time after spray dust reduction, a dust suction action can be completed, avoiding the water-coal mixture formed by spraying from falling to the ground and causing the ground humidity to rise, which affects the construction of the staff.

[0029] As a preferred embodiment, four rotating rods 91 are rotatably penetrated through the upper end of the first sleeve 62. A scraping blade 92 is fixed on the rotating rod 91, and the scraping blade 92 is in rotational contact with the upper surface of the first sleeve 62. A micro gear 93 is fixed at the lower end of the rotating rod 91. Four sliding grooves 94 are circumferentially formed on the side wall of the upper end of the first sleeve 62. A micro rack 95 is slidably arranged in the sliding groove 94, and the micro rack 95 meshes with the micro gear 93. A sealing block 96 is fixed at one end of the micro rack 95 close to each other, and the sealing block 96 is slidably sealed in the sliding groove 94. A fourth spring 97 is connected between the micro rack 95 and the inner wall of the sliding groove 94, and a ventilation hole 98 is formed between the sliding groove 94 and the outside of the first sleeve 62.

[0030] Specifically, during the spray dust reduction process, if the formed water-coal mixture falls on the upper end of the first sleeve 62 and blocks the spray holes 621, a closed space will be formed between the first sleeve 62 and the piston head 63. The force of the first spring 66 on the piston head 63 will cause a certain pressure to be formed in this closed space. This pressure is greater than the elastic force of the fourth spring 97, and the sealing block 96 will drive the micro rack 95 to move outward of the first sleeve 62. The micro gear 93 meshes with the micro rack 95, so that the micro gear 93 drives the rotating rod 91 to rotate, and then drives the scraping blade 92 to rotate. The simultaneous rotation of the four scraping blades 92 can scrape the water-coal mixture attached to the spray holes 621 to ensure the smooth progress of the spray process and improve the dust reduction efficiency.

[0031] It should be explained that after each dust suction and dust discharge is completed, the sliding rod three 82 will drive the inlet hole 822 to move into the third sleeve 81 to prevent the coal dust discharged into the filter cartridge 7 from entering the water outside the filter cartridge 7 through the guide groove 821.

[0032] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A dust removal device for coal mine safety production roadways, characterized in that, It includes a mobile vehicle body (1), a mounting plate (2), a water tank (3), a motor (4), a rotating shaft (5), a dust removal mechanism (6), a filter cartridge (7), and a swing assembly (8); the mobile vehicle body (1) is movably arranged on the roadway surface, there are two mounting plates (2) configured, which are respectively fixedly installed on both sides of the mobile vehicle body (1), the water tank (3) is fixedly installed on the mobile vehicle body (1), the motor (4) is fixedly installed on the outer side of the upper end of one of the mounting plates (2), and the output shaft of the motor (4) rotates through the mounting plate (2), the rotating shaft (5) is sleeved and rotatably arranged between the two mounting plates (2), and one end is fixed to the output end of the motor (4), there are multiple dust removal mechanisms (6) configured, which are linearly arranged on the rotating shaft (5) respectively, there are sleeve holes opened on the inner walls of the lower ends of the two sides of the water tank (3), the filter cartridge (7) is connected with energy storage springs on the side walls of both ends, and the filter cartridge (7) is connected with the inner walls of the two sleeve holes through the energy storage springs at both ends respectively, there are multiple swing assemblies (8) configured, which are linearly arranged on the filter cartridge (7) respectively.

2. The dust removal equipment for a coal mine safety production roadway according to claim 1, wherein, The dust removal mechanism (6) includes a collar (61), a first sleeve (62), a piston head (63), a first sliding rod (64), a first magnetic ball (65), and a first spring (66); the collar (61) is fixed on the rotating shaft (5), the first sleeve (62) is fixed on the collar (61), the piston head (63) is hermetically and slidably arranged in the first sleeve (62), one end of the first sliding rod (64) is fixedly connected with the piston head (63), and the other end slidably penetrates through the end of the first sleeve (62) away from the collar (61), there are multiple spray holes (621) opened at the end of the first sleeve (62) away from the collar (61), and the first magnetic ball (65) is fixedly installed at the end of the first sliding rod (64) away from the piston head (63).

3. The dust removal device for a coal mine safety production roadway according to claim 2, characterized in that, The dust removal mechanism (6) further includes a second sleeve (67), a second sliding rod (68), a second magnetic ball (69), and a second spring (71); the second sleeve (67) is fixed on the collar (61), and the second sleeve (67) is arranged at 180° with the first sleeve (62), the second sliding rod (68) hermetically and slidably penetrates through the second sleeve (67), the second magnetic ball (69) is fixedly installed at the end of the second sliding rod (68) away from the collar (61), and a through hole (72) is opened in the second magnetic ball (69) and the second sliding rod (68) together, and the second spring (71) is connected between the inner wall of the second sleeve (67) and the second sliding rod (68).

4. The dust removal device for a coal mine safety production roadway according to claim 1, characterized in that, The swinging assembly (8) includes a third sleeve (81), a third sliding rod (82), a magnetic block (83) and a return spring (84); the third sleeve (81) is fixedly and communicatively arranged on the filter cartridge (7), the third sliding rod (82) is hermetically and slidably arranged through the third sleeve (81), the magnetic block (83) is fixed to the end of the third sliding rod (82) away from the filter cartridge (7), the return spring (84) is connected between the third sleeve (81) and the magnetic block (83), a hemispherical groove (831) is formed at one end of the magnetic block (83) away from the third sliding rod (82), a guide groove (821) is formed in the third sliding rod (82), and the hemispherical groove (831) is communicated with the guide groove (821), an inlet hole (822) is formed in the side wall of the third sliding rod (82) close to the filter cartridge (7), and the inlet hole (822) is communicated with the guide groove (821).

5. The dust removal device for a coal mine safety production roadway according to claim 3, characterized in that, Four rotating rods (91) are rotatably arranged through the upper end of the first sleeve (62), scraping blades (92) are fixed on the rotating rods (91), and the scraping blades (92) are in rotational contact with the upper surface of the first sleeve (62), micro gears (93) are fixed to the lower ends of the rotating rods (91), four sliding grooves (94) are formed in a circular pattern on the side wall of the upper end of the first sleeve (62), micro racks (95) are slidably arranged in the sliding grooves (94), and the micro racks (95) are engaged with the micro gears (93), sealing blocks (96) are fixed to the mutually approaching ends of the micro racks (95), and the sealing blocks (96) are hermetically and slidably arranged in the sliding grooves (94), a fourth spring (97) is connected between the micro racks (95) and the inner walls of the sliding grooves (94), and air permeation holes (98) are formed between the sliding grooves (94) and the outside of the first sleeve (62).

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