A dust removal device with cleaning function for coal mine shaft ventilation system

Abstract

The present invention relates to the technical field of dust removal for coal mine shaft ventilation systems, and in particular to a dust removal device with a cleaning function for coal mine shaft ventilation systems. The device comprises a dust exhaust pipe, which is rotatably connected to a support pipe, which is slidably connected to a first sliding ring, a slide groove is arranged on the outer side of the support pipe, and the slide groove of the support pipe is used to limit the first sliding ring, and the dust exhaust pipe is fixedly connected to a first fixed ring, and a torsion spring is arranged on the support pipe sleeve, and the two ends of the torsion spring are respectively fixedly connected to the first sliding ring and the first fixed ring. The torsion spring detects the resistance between the two scrapers and the compacted coal powder, reduces the speed at which the gas enters between the piston and the second fixed ring, thereby reducing the speed at which the two scrapers expand outward, and makes the two scrapers rotate circumferentially to clean the compacted coal powder inside the pipeline layer by layer, so as to avoid the large-scale shedding of the compacted coal powder on the inner wall of the ventilation shaft, which makes it difficult to discharge the large-scale shedding of the compacted coal powder from the ventilation shaft.

Description

Technical Field

[0001] The invention relates to the technical field of dust removal for coal mine shaft ventilation systems, and in particular to a dust removal device with a cleaning function for coal mine shaft ventilation systems. Background Art

[0002] Since coal mines are located deep underground, in order to ensure the safety of underground workers, it is necessary to continuously ventilate the mine so that the air underground can circulate effectively. The flow of air can not only discharge harmful gases from the mine, but also bring in enough oxygen to continuously provide oxygen for underground workers.

[0003] Since coal mines are in a humid environment underground, a large amount of coal powder floating in the air underground enters the ventilation shaft with the humid air. Long-term contact between coal powder and humid air will cause the coal powder to become compacted on the inner wall of the ventilation shaft, and with the use time, the thickness of the compacted inner wall of the ventilation shaft gradually increases. In severe cases, it will cause the entire ventilation system to be blocked. During the cleaning process of the inner wall of the ventilation shaft, the existing device directly squeezes the scraper against the inner wall of the ventilation duct, which easily causes the coal powder compacted on the inner wall of the ventilation shaft to fall off on a large scale, forming a large area of ​​compacted coal powder. Since the area of ​​the compacted coal powder that has fallen off is large, it is difficult to suck out the compacted coal powder through the dust suction device, which in turn causes the large-scale fallen compacted coal powder to accumulate in the ventilation shaft. Summary of the invention

[0004] In order to overcome the shortcomings mentioned in the above background technology, the present invention provides a dust removal device with a cleaning function for a coal mine shaft ventilation system.

[0005] The technical solution provided by the present invention is as follows: a dust removal device with a cleaning function for a coal mine shaft ventilation system, comprising a dust exhaust pipe, the dust exhaust pipe is rotatably connected to a support pipe, the support pipe is slidably connected to a first sliding ring, a slide groove is arranged on the outer side of the support pipe, the slide groove of the support pipe is used to limit the first sliding ring, the dust exhaust pipe is fixedly connected to a first fixing ring, the first fixing ring is fixedly connected to a gear ring on a side away from the support pipe, the dust exhaust pipe is fixedly connected to a driving motor electrically connected to a remote control terminal, the output shaft of the driving motor is fixedly connected to a first gear meshing with the gear ring, the support pipe sleeve is provided with a torsion spring, the torsion spring The two ends are respectively fixed to the first sliding ring and the first fixed ring. The end of the dust exhaust pipe away from the support pipe is connected to the dust suction device. A supporting mechanism is arranged on the outside of the dust exhaust pipe. The supporting mechanism is used to keep the dust exhaust pipe and the central axis of the ventilation shaft in the same straight line. An air intake regulating mechanism is arranged in the support pipe. The support pipe is provided with a cleaning mechanism for cleaning the inner wall of the ventilation shaft. The air intake regulating mechanism adjusts the gas inflow speed according to the distance between the first sliding ring and the first fixed ring, and adjusts the speed of the cleaning mechanism approaching the inner wall of the ventilation shaft. A pressure relief mechanism is arranged on the end of the support pipe away from the dust exhaust pipe.

[0006] As a further preferred scheme, the supporting mechanism includes a second sliding ring, which is slidably connected to the dust exhaust pipe, and a sliding groove is arranged on the outer side of the dust exhaust pipe, and the sliding groove of the dust exhaust pipe is used to limit the second sliding ring, and the dust exhaust pipe and the second sliding ring are both fixedly connected with mounting seats with circumferentially equal spacing, and the mounting seats of the dust exhaust pipe and the second sliding ring are both hinged with a first connecting plate, and adjacent first connecting plates are hinged with each other, and the outer sides of adjacent first connecting plates are slidably connected with a first support plate through the mounting seat, and an electric wheel with equal spacing is arranged on the side of the first support plate away from the dust exhaust pipe, and the electric wheel is electrically connected to the remote control terminal, and an electric telescopic rod electrically connected to the remote control terminal is fixedly connected to the outer side of the dust exhaust pipe, and the telescopic end of the electric telescopic rod is fixedly connected to the second sliding ring.

[0007] As a further preferred scheme, the air intake regulating mechanism includes a second fixed ring, the second fixed ring is fixedly connected to the inner wall of the support tube, the second fixed ring is fixedly connected to a rotating tube, the rotating tube is sealed with the second fixed ring, the rotating tube is rotatably connected to a connecting ring at one end close to the dust exhaust pipe, the middle part of the dust exhaust pipe is fixedly connected to an air intake pipe, the air intake pipe is connected to an air injection device, the air intake pipe is rotatably connected to the connecting ring, the rotating tube is fixedly connected and connected to a spherical shell, a rotating ball is rotatably connected in the spherical shell, a vent is provided in the middle of the rotating ball, the rotating ball is fixedly connected to a symmetrical connecting rod, the connecting rod passes through the spherical shell and the support tube, the connecting rod is sealed with the spherical shell and the support tube, a symmetrical sliding plate is fixedly connected to the side of the first sliding ring away from the dust exhaust pipe, the sliding plate is provided with a sliding groove, the connecting rod is slidably connected to the sliding groove of the adjacent sliding plate, the sliding plate is fixedly connected to a first rack, and the connecting rod is fixedly connected to a second gear meshing with the adjacent first rack.

[0008] As a further preferred scheme, the cleaning mechanism includes a third fixed ring, the third fixed ring is fixed to the end of the support tube away from the dust exhaust pipe, the third fixed ring is slidably connected with a sliding sleeve, the end of the sliding sleeve close to the dust exhaust pipe is fixed with a piston, the piston is slidably connected to the support tube and sealed, the sliding sleeve is provided with a first elastic part, the two ends of the first elastic part are respectively fixed to the third fixed ring and the piston, the sliding sleeve is provided with a ring, a second elastic part is provided between the ring and the support tube, and the support tube is provided with a scraping component for cleaning the inner wall of the ventilation shaft.

[0009] As a further preferred scheme, the scraping assembly includes a symmetrical fixed seat, the symmetrical fixed seats are fixed to the outer side of the support tube, the fixed seat is hinged with a second connecting plate through a rotating shaft, the rotating shaft of the fixed seat is fixed with a third gear, the outer side of the support tube is slidably connected with a symmetrical second rack, the second rack is fixed with a ring through a mounting plate, the second rack is meshed with an adjacent third gear, the second connecting plate is hinged with a scraper through a rotating shaft, the rotating shaft sleeve of the second connecting plate is provided with a reset member for keeping the scraper horizontal, the scraper is fixed with a collecting shell, the collecting shell is connected with an air duct, and the air duct is connected with the support tube.

[0010] As a further preferred solution, the height of the collecting shell is smaller than the height of the scraper, so as to maintain the distance between the collecting shell and the compacted coal powder.

[0011] As a further preferred scheme, the pressure relief mechanism includes a first fixed plate, the first fixed plate is fixedly connected to the end of the sliding sleeve away from the piston, the inner wall of the sliding sleeve is fixedly connected to the second fixed plate, the first fixed plate and the second fixed plate are both provided with through holes, a sliding rod is slidably connected between the first fixed plate and the second fixed plate, the piston is provided with a circular through hole, a sealing sleeve is sealingly and slidably connected in the circular through hole of the piston, a return spring is provided between the sealing sleeve and the piston, a sealing plug is slidably connected to the sealing sleeve, the sealing plug is fixed to the sliding rod, the sliding rod sleeve is provided with a third elastic member, two ends of the third elastic member are respectively fixedly connected to the second fixed plate and the sealing plug, a limiting telescopic rod is fixedly connected to the side of the first fixed plate away from the sealing plug, the telescopic end of the limiting telescopic rod is fixed to the sliding rod through the mounting plate, the sliding sleeve is provided with a limiting component, and the limiting component is used to limit the ring.

[0012] As a further preferred solution, the limiting telescopic rod is configured as a damping rod to slow down the resetting speed of the sliding rod.

[0013] As a further preferred solution, the elastic force of the third elastic member is greater than the elastic force of the first elastic member, so as to maintain the sealing between the sealing plug and the piston.

[0014] As a further preferred scheme, the limit assembly includes limit blocks with circumferentially equal spacing, the limit blocks with circumferentially equal spacing are all slidably connected to the sliding sleeve, the limit blocks with circumferentially equal spacing are used to push the ring, the limit block is arranged in an L-shape, and both ends of the limit block are arranged with inclined surfaces, the inner wall of the sliding sleeve is fixedly connected to the second support plate with circumferentially equal spacing, the middle part of the second support plate is fixedly connected to a fixed column, the limit block is provided with a circular through hole, the fixed column is slidably matched with the circular through hole of the adjacent limit block, the fixed column sleeve is provided with a fourth elastic member, the two ends of the fourth elastic member are respectively fixedly connected to the adjacent second support plate and the adjacent limit block, the sliding rod is fixedly connected to a fourth fixing ring, the fourth fixing ring is fixedly connected to an extrusion plate with circumferentially equal spacing, and the extrusion plate is extrusion-matched with the adjacent limit block.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] The resistance between the two scrapers and the compacted coal powder is detected by the torsion spring, which drives the rotating ball to rotate, reduces the ventilation area of ​​the rotating ball through hole, reduces the speed of gas entering between the piston and the second fixed ring, and thus reduces the speed of the two scrapers to expand outward, so that the two scrapers rotate circumferentially to clean the compacted coal powder inside the pipeline layer by layer, and avoid the large-scale shedding of the compacted coal powder on the inner wall of the ventilation shaft, which makes it difficult to discharge the large-scale shedding of the compacted coal powder from the ventilation shaft; by controlling the extension length of the telescopic end of the electric telescopic rod, the distance between the circumferentially equally spaced first support plates is changed, so that the device can be used in pipelines of different thicknesses; the gap between the collecting shell and the compacted coal powder is the height difference between the scraper and the collecting shell and is always at the same height, thereby improving the adsorption effect of the dust removal device on the cleaned coal powder; the sealing sleeve is driven to move synchronously by the sealing plug, thereby increasing the movement range of the sealing plug, and ensuring that the through hole of the piston and the support pipe are in a connected state during the resetting process of the sealing plug. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the cross-sectional three-dimensional structure of parts such as the support pipe and the dust exhaust pipe of the present invention.

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the support mechanism of the present invention.

[0020] Figure 4 It is a schematic diagram of the cross-sectional three-dimensional structure of the air intake adjustment mechanism of the present invention.

[0021] Figure 5 It is a three-dimensional structural schematic diagram of the sliding sleeve, piston and other parts of the present invention.

[0022] Figure 6 It is a top view of the three-dimensional structure of the scraping assembly of the present invention.

[0023] Figure 7 It is a three-dimensional structural schematic diagram of the scraper, collecting shell and other parts of the present invention.

[0024] Figure 8 It is a schematic diagram of the cross-sectional three-dimensional structure of the pressure relief mechanism of the present invention.

[0025] Fig. 9 It is a schematic diagram of the three-dimensional structure of the limiting component of the present invention.

[0026] The markings of the components in the accompanying drawings are as follows: 1. Ventilation shaft, 201. Dust exhaust pipe, 202. Support pipe, 203. First sliding ring, 204. First fixed ring, 205. Gear ring, 206. Drive motor, 207. First gear, 208. Torsion spring, 301. Second sliding ring, 302. First connecting plate, 303. First supporting plate, 304. Electric wheel, 305. Electric telescopic rod, 401. Second fixed ring, 402. Rotating pipe, 403. Connecting ring, 404. Inlet pipe, 405. Spherical shell, 406. Rotating ball, 407. Connecting rod, 408. Sliding plate, 409. First rack, 410. Second gear, 501. Third fixed ring, 502, sliding sleeve, 503, piston, 5031, sealing sleeve, 5032, return spring, 504, first elastic member, 505, collar, 5051, second elastic member, 506, fixed seat, 507, second connecting plate, 508, third gear, 509, second rack, 510, scraper, 511, collecting shell, 512, air guide tube, 601, first fixed plate, 602, second fixed plate, 603, sliding rod, 604, sealing plug, 605, third elastic member, 606, limiting telescopic rod, 607, limiting block, 608, second support plate, 609, fixing column, 610, fourth elastic member, 611, fourth fixing ring, 612, extrusion plate. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Embodiment 1: A dust removal device with a cleaning function for a coal mine shaft ventilation system, such as Figure 1 and Figure 2As shown, it includes a dust exhaust pipe 201, the dust exhaust pipe 201 is rotatably connected to the support pipe 202, the support pipe 202 is slidably connected to the first sliding ring 203, the outer side of the support pipe 202 is provided with a slide groove, the slide groove of the support pipe 202 is used to limit the first sliding ring 203, the dust exhaust pipe 201 is fixedly connected to the first fixing ring 204, the right side of the first fixing ring 204 is fixedly connected to the gear ring 205, the dust exhaust pipe 201 is fixedly connected to the drive motor 206 electrically connected to the remote control terminal, the output shaft of the drive motor 206 is fixedly connected to the first gear 207, the first gear 207 is meshed with the gear ring 205, a torsion spring 208 is fixedly connected between the first sliding ring 203 and the first fixing ring 204, and the torsion spring 208 is sleeved In the support pipe 202, the right end of the dust exhaust pipe 201 is connected to a dust suction device, which generates negative pressure to suck out the coal powder in the ventilation shaft 1. A support mechanism is arranged on the outside of the dust exhaust pipe 201, and the support mechanism is used to keep the dust exhaust pipe 201 and the central axis of the ventilation shaft 1 in the same straight line. An air intake adjustment mechanism is arranged in the support pipe 202, and the support pipe 202 is provided with a cleaning mechanism for cleaning the inner wall of the ventilation shaft 1. The air intake adjustment mechanism adjusts the gas inflow speed according to the distance between the first sliding ring 203 and the first fixed ring 204, and adjusts the speed of the cleaning mechanism approaching the inner wall of the ventilation shaft 1. A pressure relief mechanism is arranged on the left end of the support pipe 202, and the pressure relief mechanism is triggered to quickly retract the adjustment cleaning mechanism.

[0029] like Figure 3 As shown, the support mechanism includes a second sliding ring 301, the second sliding ring 301 is slidably connected to the dust exhaust pipe 201, a sliding groove is arranged on the outer side of the dust exhaust pipe 201, the sliding groove of the dust exhaust pipe 201 is used to limit the second sliding ring 301, the dust exhaust pipe 201 and the second sliding ring 301 are both fixedly connected with four mounting seats with equal circumferential spacing, the dust exhaust pipe 201 and the mounting seats of the second sliding ring 301 are both hinged with a first connecting plate 302, adjacent first connecting plates 302 are hinged with each other, the outer sides of adjacent first connecting plates 302 are slidably connected with a first supporting plate 303 through the mounting seats, the outer ends of adjacent first connecting plates 302 are close to each other, and the adjacent first connecting plates 303 are 2 slides along the first support plate 303, and three electric wheels 304 with equal intervals are arranged on the outer side of the first support plate 303. The electric wheels 304 are electrically connected to the remote control terminal. The rotation of the electric wheels 304 is used to drive the first support plate 303 to move along the ventilation shaft 1 to clean different positions of the inner wall of the ventilation shaft 1. An electric telescopic rod 305 electrically connected to the remote control terminal is fixed to the outer side of the dust exhaust pipe 201, and the telescopic end of the electric telescopic rod 305 is fixed to the second sliding ring 301. By changing the telescopic length of the telescopic end of the electric telescopic rod 305, the distance between the four first support plates 303 is changed to adapt to ventilation shafts 1 with different diameters.

[0030] like Figure 2 , Figure 4 and Figure 5As shown, the air intake adjustment mechanism includes a second fixed ring 401, the second fixed ring 401 is fixedly connected to the inner wall of the support tube 202, the second fixed ring 401 is fixedly connected to a rotating tube 402, the right end of the rotating tube 402 is rotatably connected to a connecting ring 403, the middle part of the dust exhaust tube 201 is fixedly connected to an air intake pipe 404, the air intake pipe 404 is connected to a gas injection device, the gas injection device uniformly injects gas into the air intake pipe 404, the air intake pipe 404 is rotatably connected to the connecting ring 403, the rotating tube 402 is fixedly connected and connected to a spherical shell 405, a rotating ball 406 is rotatably connected in the spherical shell 405, a vent hole is provided in the middle of the rotating ball 406, and the rotating ball 406 cooperates with the spherical shell 405. Used to change the flow area of ​​gas passing through the through hole of the rotating ball 406, the rotating ball 406 is fixedly connected with a symmetrical connecting rod 407, the connecting rod 407 passes through the spherical shell 405 and the support tube 202, the connecting rod 407 is sealed with the spherical shell 405 and the support tube 202, and is used to prevent gas from overflowing from between the support tube 202 and the connecting rod 407, the left side of the first sliding ring 203 is fixedly connected with a symmetrical sliding plate 408, the sliding plate 408 is provided with a sliding groove, the connecting rod 407 is slidably connected in the sliding groove of the adjacent sliding plate 408, the sliding plate 408 is fixedly connected with a first rack 409, and the connecting rod 407 is fixedly connected with a second gear 410 meshing with the adjacent first rack 409.

[0031] like Figure 5-Figure 7 As shown, the cleaning mechanism includes a third fixed ring 501, which is fixed to the left end of the support tube 202, and the third fixed ring 501 is slidably connected with a sliding sleeve 502. The right end of the sliding sleeve 502 is fixed with a piston 503 that seals with the support tube 202. A first elastic member 504 is fixed between the third fixed ring 501 and the piston 503. The first elastic member 504 is sleeved on the sliding sleeve 502, and the sliding sleeve 502 is provided with a collar 505. Gas enters between the piston 503 and the second fixed ring 401, and the piston 503 drives the sliding sleeve 502 and other components on the sliding sleeve 502 to move to the left side, which is used to push the collar 505 to the left side. A second elastic member 5051 is provided between the collar 505 and the support tube 202, and the second elastic member 5051 is set as a tension spring to quickly reset the collar 505. The support tube 202 is provided with a scraping component for cleaning the inner wall of the ventilation shaft 1.

[0032] like Figure 6 and Figure 7As shown, the scraping assembly includes a symmetrical fixed seat 506, which is fixedly connected to the outer side of the support tube 202. The fixed seat 506 is hinged with a second connecting plate 507 through a rotating shaft. The rotating shaft of the fixed seat 506 is fixedly connected with a third gear 508. The outer side of the support tube 202 is slidably connected with a symmetrical second rack 509, which is fixedly connected to the collar 505 through a mounting plate. The second rack 509 is meshed with the adjacent third gear 508. The second rack 509 moves to the left, so that the second connecting plate 507 and other components thereon swing outward. The second connecting plate 507 is hinged with a scraper 510 through a rotating shaft. The scraper 510 is used to scrape the coal powder that is compacted on the inner wall of the ventilation shaft 1. For cleaning, the rotating shaft sleeve of the second connecting plate 507 is provided with a reset member for keeping the scraper 510 horizontal, the reset member between the scraper 510 and the second connecting plate 507 is used to keep the scraper 510 parallel to the second connecting plate 507 when not subject to external force, the scraper 510 is fixedly connected with a collecting shell 511, the height of the collecting shell 511 is less than the height of the scraper 510, and is used to maintain the distance between the collecting shell 511 and the compacted coal powder, thereby improving the collection effect of the collecting shell 511 on the scraped coal powder, the collecting shell 511 is connected to the air duct 512, the air duct 512 is set to be a soft material, and is used to adapt to the different swinging angles of the second connecting plate 507, and the air duct 512 is connected to the support tube 202.

[0033] like Figure 8 and Fig. 9As shown, the pressure relief mechanism includes a first fixed plate 601, the first fixed plate 601 is fixedly connected to the left end of the sliding sleeve 502, the inner wall of the sliding sleeve 502 is fixedly connected to the second fixed plate 602, the first fixed plate 601 and the second fixed plate 602 are both provided with through holes, the gas between the piston 503 and the second fixed ring 401 is discharged to the left through the through holes of the first fixed plate 601 and the second fixed plate 602, a sliding rod 603 is slidably connected between the first fixed plate 601 and the second fixed plate 602, the piston 503 is provided with a circular through hole, a sealing sleeve 5031 is sealingly and slidably connected in the circular through hole of the piston 503, a reset spring 5032 is provided between the sealing sleeve 5031 and the piston 503, the sealing sleeve 5031 is used to extend the distance that the piston 503 moves to the left and increase the time for the piston 503 to move to the right and reset, the sealing sleeve 5031 is slidably connected to a sealing plug 604, the sealing plug 604 is fixedly connected to the sliding rod 603, and the sliding rod 603 A third elastic member 605 is sleeved, and the elastic force of the third elastic member 605 is greater than the elastic force of the first elastic member 504, which is used to maintain the sealing between the sealing plug 604 and the piston 503. When the gas pressure between the piston 503 and the second fixing ring 401 increases, the piston 503 is first pushed to move to the left. When the piston 503 reaches the leftmost position, the gas in the piston 503 and the second fixing ring 401 will squeeze the sealing plug 604 to the left. The two ends of the third elastic member 605 are respectively fixed to the second fixing plate 602 and the sealing plug 604. The left side of the first fixing plate 601 is fixedly connected to a limiting telescopic rod 606. The limiting telescopic rod 606 is set as a damping rod, which is used to slow down the reset speed of the sliding rod 603 so that the piston 503 and the components thereon have sufficient time to reset. The telescopic end of the limiting telescopic rod 606 is fixed to the sliding rod 603 through the mounting plate. The sliding sleeve 502 is provided with a limiting component, and the limiting component is used to limit the collar 505.

[0034] like Fig. 9As shown, the limiting assembly includes four limiting blocks 607 with equal circumferential spacing, and the four limiting blocks 607 with equal circumferential spacing are all slidably connected to the sliding sleeve 502. The limiting blocks 607 with equal circumferential spacing are used to push the collar 505. The sliding sleeve 502 drives the collar 505 to move to the left through the four limiting blocks 607, so that the scrapers on both sides gradually approach the inner wall of the ventilation shaft 1. The limiting blocks 607 are set to be L-shaped, and both ends of the limiting blocks 607 are provided with inclined surfaces. The inner wall of the sliding sleeve 502 is fixedly connected to four second support plates 608 with equal circumferential spacing, and the middle part of the second support plate 608 is fixedly connected to a fixing column 609. The limiting blocks 607 are arranged in an L-shape, and the inner wall of the sliding sleeve 502 is fixedly connected to four second support plates 608 with equal circumferential spacing. The middle part of the second support plate 608 is fixedly connected to a fixing column 609. 07 is provided with a circular through hole, the fixed column 609 is slidably matched with the circular through hole of the adjacent limit block 607, a fourth elastic member 610 is fixedly connected between the second support plate 608 and the adjacent limit block 607, the fourth elastic member 610 is sleeved on the adjacent fixed column 609, the sliding rod 603 is fixedly connected with a fourth fixed ring 611, the fourth fixed ring 611 is fixedly connected with four extrusion plates 612 with circumferentially equal spacing, the extrusion plates 612 are extruded and matched with the adjacent limit blocks 607, the four extrusion plates 612 all squeeze the adjacent limit blocks 607 to the left, the four limit blocks 607 move close to each other, and the limit on the ring 505 is released.

[0035] When using this device, the staff places this device in the ventilation shaft 1 and starts the electric telescopic rod 305 through the remote control terminal. The extension of the electric telescopic rod 305 drives the second sliding ring 301 to slide to the right along the slide groove of the dust exhaust pipe 201. At this time, the outer ends of the two adjacent first connecting plates 302 are close to each other, and the outer ends of the first connecting plates 302 drive the mounting seat to slide along the first support plate 303, so that the four first support plates 303 all move in the direction close to the inner wall of the ventilation shaft 1. When the electric wheel 304 is squeezed on the inner wall of the ventilation shaft 1, the staff closes the electric telescopic rod 305 through the remote control terminal. At this time, the centerline axis of the dust exhaust pipe 201 and the support tube 202 are on the same straight line as the centerline axis of the ventilation shaft 1. By controlling the extended length of the telescopic end of the electric telescopic rod 305, the distance between the four first support plates 303 is controlled, so that this device can be used in ventilation shafts 1 of different thicknesses.

[0036] After the device is fixed, the staff starts the drive motor 206 through the remote control terminal. The output shaft of the drive motor 206 drives the gear ring 205 to rotate through the first gear 207. The gear ring 205 drives the first fixed ring 204 to rotate. The first fixed ring 204 drives the first sliding ring 203 and the support tube 202 to rotate circumferentially through the torsion spring 208. The staff starts the gas injection device, which injects gas into the air inlet pipe 404 at a uniform speed. The gas flows along the air inlet pipe 404, the connecting ring 403, the rotating tube 402 and the rotating ball 406. The air flows into the space between the second fixed ring 401 and the piston 503. As the gas is injected between the second fixed ring 401 and the piston 503, the gas pushes the piston 503 to move left, and the piston 503 drives the sliding ring 203 and the supporting tube 202 to rotate circumferentially. The movable sleeve 502 and the components thereon move to the left, the first elastic member 504 is compressed, the sliding sleeve 502 drives the collar 505 to move to the left through the four limit blocks 607, the collar 505 drives the second rack 509 to move to the left through the mounting plate, the second elastic member 5051 is stretched, the second rack 509 drives the adjacent third gear 508 to rotate, the third gear 508 drives the second connecting plate 507 to swing outward through the rotating shaft, the two scrapers 510 rotate to approach the inner wall of the ventilation shaft 1, at this time, the through hole of the rotating ball 406 is in a completely connected state with the spherical shell 405, the speed at which the gas enters between the second fixed ring 401 and the piston 503 is uniform, so that the two scrapers 510 can quickly approach the inner wall of the ventilation shaft 1 at the beginning, and at the same time, the working The operator starts the dust collection device. After the dust collection device is started, air enters from the air duct 512 and enters the dust collection device along the support pipe 202 and the dust exhaust pipe 201. The two scrapers 510 are close to the outer side of the carbon powder compacted on the inner wall of the ventilation shaft 1, and the carbon powder attached to the inner wall of the ventilation shaft 1 is adsorbed by the dust collection device. Then, the two scrapers 510 contact the compacted carbon powder and generate friction. A relative displacement occurs between the first fixed ring 204 and the first sliding ring 203, and at the same time, the torsion spring 208 is tightened. The greater the friction between the two scrapers 510 and the compacted carbon powder, the greater the relative displacement between the first fixed ring 204 and the first sliding ring 203. During the tightening of the torsion spring 208, the left end of the torsion spring 208 drives the first sliding ring 203 along the support pipe The slide groove of 202 moves to the right, the first sliding ring 203 drives the two sliding plates 408 to move to the right, the sliding plate 408 drives the rack of the first rack 409 to move to the right, the first rack 409 drives the adjacent second gear 410 to rotate, the second gear 410 drives the rotating ball 406 to swing through the connecting rod 407, the rotating ball 406 rotates to one side, the ventilation area of ​​the through hole of the rotating ball 406 is reduced, and the speed at which the gas enters between the piston 503 and the second fixed ring 401 is reduced, thereby reducing the speed at which the two scrapers 510 expand outward, so that the two scrapers 510 rotate circumferentially to clean the coal powder compacted inside the ventilation shaft 1 layer by layer. When the inner wall of the ventilation shaft 1 here is cleaned, the two scrapers 510 directly squeeze the inner wall of the ventilation shaft 1.At this time, the two scrapers 510 cannot continue to move outward.

[0037] As the gas is continuously injected between the piston 503 and the second fixed ring 401, the pressure between the piston 503 and the second fixed ring 401 gradually increases, and then the gas pushes the sealing plug 604 to the left, and the sealing plug 604 drives the sliding rod 603 to move to the left, and the sealing plug 604 drives the sealing sleeve 5031 to move to the left, and at the same time the return spring 5032 and the third elastic member 605 are compressed, and the sliding rod 603 drives the four extrusion plates 612 to move to the left through the fourth fixed ring 611, and the four extrusion plates 612 squeeze the adjacent limit blocks 607 respectively, and the limit blocks 607 are squeezed by the extrusion plates 612 and move in the direction close to the sliding rod 603, and the limit blocks 607 slide along the adjacent fixed columns 609, and at the same time the fourth elastic member 605 is compressed. The sleeve 505 is pressed against the second elastic member 5051, and the sleeve 505 and the two second racks 509 are quickly reset under the pulling force of the second elastic member 5051, so that the two scrapers 510 are quickly reset. Before the scrapers 510 come into contact with the hardened coal powder, the scrapers 510 can quickly expand outward. After the ventilation shaft 1 is cleaned, the scrapers 510 can be quickly reset, thus reducing the reset time of the shell scrapers 510, thereby improving the working efficiency of the entire device. As the sealing plug 604 continues to move to the left, the sealing plug 604 and the sealing sleeve 5031 gradually slide until they lose their fit. The sealing sleeve 5031 is reset under the elastic force of the reset spring 5032, and the piston 503 is reset with the first The gas in the second fixed ring 401 is discharged from the sliding sleeve 502 through the sealing sleeve 5031, and the sealing sleeve 5031 is driven to move synchronously through the sealing plug 604, thereby increasing the range of movement of the sealing plug 604 to the left, ensuring that during the resetting process of the sealing plug 604, the through hole of the piston 503 is in a connected state with the support tube 202, so that the piston 503 moves to the right and resets to the initial position. At the same time, the sliding rod 603 drives the telescopic end of the limiting telescopic rod 606 to move to the left through the mounting plate. As the pressure in the piston 503 and the second fixed ring 401 decreases, the piston 503 moves to the right and resets under the elastic force of the first elastic member 504. During the process of the piston 503 moving to the right and resetting, under the elastic force of the third elastic member 605 The sealing plug 604 is reset, but under the action of the limiting telescopic rod 606, there is damping in the process of the telescopic end of the limiting telescopic rod 606 resetting to the right, so that the sealing plug 604 is slowly reset to the right. At this time, the gas uniformly injected into the piston 503 and the second fixing ring 401 is discharged from the sliding sleeve 502. After the piston 503 is reset, under the elastic force of the third elastic member 605, the sealing plug 604 is reinserted into the sealing sleeve 5031 for resealing, and the sliding rod 603 drives the fourth fixing ring 611 to move to the right until it is reset. After the fourth fixing ring 611 is reset, the limiting block 607 loses the limit of the adjacent extrusion plate 612, and then the limiting block 607 is reset under the elastic force of the adjacent fourth elastic member 610.

[0038] During the resetting of the two scrapers 510, the staff starts the electric wheel 304 through the remote control terminal. The electric wheel 304 rotates to move the device to the left along the ventilation shaft 1 for a specified length. The staff turns off the electric wheel 304 and then repeats the above operation to clean the coal powder on the inner wall of the ventilation shaft 1. When the coal powder in the ventilation shaft 1 is cleaned, the staff turns off the air injection device and the dust suction device, and at the same time turns off the drive motor 206 through the remote control terminal, and controls the electric wheel 304 to rotate, so that the device moves from the right end of the ventilation shaft 1 to the leftmost end. The staff controls the telescopic end of the electric telescopic rod 305 to reset through the remote control terminal. During the resetting of the telescopic end of the electric telescopic rod 305, the second sliding ring 301 moves to the left to make the four first support plates 303 move closer to each other until they are reset. Then the staff turns off the electric telescopic rod 305 through the remote control terminal and takes the device out of the ventilation shaft 1.

[0039] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present disclosure. Instead, they are merely examples of systems and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

Claims

1. A dust removal device with cleaning function for a coal mine shaft ventilation system, characterized in that: The invention comprises a dust exhaust pipe (201), wherein the dust exhaust pipe (201) is rotatably connected to a support pipe (202), the support pipe (202) is slidably connected to a first sliding ring (203), a sliding groove is arranged on the outer side of the support pipe (202), the sliding groove of the support pipe (202) is used to limit the first sliding ring (203), the dust exhaust pipe (201) is fixedly connected to a first fixing ring (204), a side of the first fixing ring (204) away from the support pipe (202) is fixedly connected to a gear ring (205), the dust exhaust pipe (201) is fixedly connected to a drive motor (206) electrically connected to a remote control terminal, the output shaft of the drive motor (206) is fixedly connected to a first gear (207) meshing with the gear ring (205), and the support pipe (202) is sleeved with a torsion spring (208), the torsion spring (208) is The two ends are respectively fixed to the first sliding ring (203) and the first fixed ring (204); one end of the dust exhaust pipe (201) away from the support pipe (202) is connected to a dust suction device; a support mechanism is provided on the outside of the dust exhaust pipe (201); the support mechanism is used to keep the dust exhaust pipe (201) and the central axis of the ventilation shaft (1) in the same straight line; an air intake adjustment mechanism is provided in the support pipe (202); the support pipe (202) is provided with a cleaning mechanism for cleaning the inner wall of the ventilation shaft (1); the air intake adjustment mechanism adjusts the gas inflow speed according to the distance between the first sliding ring (203) and the first fixed ring (204), and adjusts the speed of the cleaning mechanism approaching the inner wall of the ventilation shaft (1); and a pressure relief mechanism is provided on the end of the support pipe (202) away from the dust exhaust pipe (201).

2. A dust removal device with cleaning function for a coal mine shaft ventilation system according to claim 1, characterized in that: The support mechanism comprises a second sliding ring (301), the second sliding ring (301) is slidably connected to the dust exhaust pipe (201), a sliding groove is arranged on the outside of the dust exhaust pipe (201), the sliding groove of the dust exhaust pipe (201) is used to limit the second sliding ring (301), the dust exhaust pipe (201) and the second sliding ring (301) are both fixedly connected to mounting seats with circumferentially equal spacing, the dust exhaust pipe (201) and the mounting seats of the second sliding ring (301) are both hingedly connected to first connecting plates (302), and adjacent first connecting plates ( The first connecting plates (302) are hinged to each other, and the outer sides of the adjacent first connecting plates (302) are slidably connected to the first supporting plates (303) via the mounting seats. The first supporting plates (303) are provided with electric wheels (304) at equal intervals on the side away from the dust exhaust pipe (201). The electric wheels (304) are electrically connected to the remote control terminal. The outer side of the dust exhaust pipe (201) is fixedly connected to an electric telescopic rod (305) electrically connected to the remote control terminal. The telescopic end of the electric telescopic rod (305) is fixedly connected to the second sliding ring (301).

3. A dust removal device with cleaning function for a coal mine shaft ventilation system according to claim 1, characterized in that: The air intake regulating mechanism comprises a second fixed ring (401), the second fixed ring (401) is fixedly connected to the inner wall of the support tube (202), the second fixed ring (401) is fixedly connected to a rotating tube (402), the rotating tube (402) and the second fixed ring (401) are sealed and matched, one end of the rotating tube (402) close to the dust exhaust tube (201) is rotatably connected to a connecting ring (403), the middle part of the dust exhaust tube (201) is fixedly connected to an air intake pipe (404), the air intake pipe (404) is connected to an air injection device, the air intake pipe (404) is rotatably connected to the connecting ring (403), the rotating tube (402) is fixedly connected and connected to a spherical shell (405), a rotating ball (406) is rotatably connected in the spherical shell (405), and the rotating A vent hole is provided in the middle of the ball (406); the rotating ball (406) is fixedly connected to a symmetrical connecting rod (407); the connecting rod (407) passes through the spherical shell (405) and the support tube (202); the connecting rod (407) is sealed with the spherical shell (405) and the support tube (202); a symmetrical sliding plate (408) is fixedly connected to the side of the first sliding ring (203) away from the dust exhaust pipe (201); the sliding plate (408) is provided with a sliding groove; the connecting rod (407) is slidably connected to the sliding groove of an adjacent sliding plate (408); the sliding plate (408) is fixedly connected to a first rack (409); and the connecting rod (407) is fixedly connected to a second gear (410) meshing with the adjacent first rack (409).

4. A dust removal device with cleaning function for a coal mine shaft ventilation system as claimed in claim 1, characterized in that: The cleaning mechanism comprises a third fixing ring (501), the third fixing ring (501) being fixedly connected to one end of a support tube (202) away from a dust exhaust pipe (201), the third fixing ring (501) being slidably connected to a sliding sleeve (502), one end of the sliding sleeve (502) close to the dust exhaust pipe (201) being fixedly connected to a piston (503), the piston (503) being slidably connected to the support tube (202) and sealingly matched, the sliding sleeve (502) being sleeved with a first elastic member (504), the two ends of the first elastic member (504) being respectively fixedly connected to the third fixing ring (501) and the piston (503), the sliding sleeve (502) being provided with a collar (505), a second elastic member (5051) being provided between the collar (505) and the support tube (202), and the support tube (202) being provided with a scraping component for cleaning the inner wall of the ventilation shaft (1).

5. A dust removal device with cleaning function for a coal mine shaft ventilation system as claimed in claim 4, characterized in that: The scraping assembly comprises symmetrical fixed seats (506), the symmetrical fixed seats (506) are all fixedly connected to the outer side of the support tube (202), the fixed seats (506) are hingedly connected to a second connecting plate (507) via a rotating shaft, the rotating shaft of the fixed seat (506) is fixedly connected to a third gear (508), the outer side of the support tube (202) is slidably connected to a symmetrical second rack (509), the second rack (509) is fixedly connected to a collar (505) via a mounting plate, the second rack (509) is meshed with an adjacent third gear (508), the second connecting plate (507) is hingedly connected to a scraper (510) via a rotating shaft, the rotating shaft sleeve of the second connecting plate (507) is provided with a reset member for keeping the scraper (510) horizontal, the scraper (510) is fixedly connected to a collecting shell (511), the collecting shell (511) is connected to an air guide tube (512), and the air guide tube (512) is connected to the support tube (202).

6. A dust removal device with cleaning function for a coal mine shaft ventilation system as claimed in claim 5, characterized in that: The height of the collecting shell (511) is smaller than the height of the scraper (510), and is used to maintain a distance between the collecting shell (511) and the compacted coal powder.

7. A dust removal device with cleaning function for a coal mine shaft ventilation system as claimed in claim 4, characterized in that: The pressure relief mechanism comprises a first fixed plate (601), the first fixed plate (601) is fixedly connected to one end of the sliding sleeve (502) away from the piston (503), the inner wall of the sliding sleeve (502) is fixedly connected to the second fixed plate (602), the first fixed plate (601) and the second fixed plate (602) are both provided with through holes, a sliding rod (603) is slidably connected between the first fixed plate (601) and the second fixed plate (602), the piston (503) is provided with a circular through hole, a sealing sleeve (5031) is sealingly slidably connected in the circular through hole of the piston (503), and a return spring is provided between the sealing sleeve (5031) and the piston (503). (5032), the sealing sleeve (5031) is slidably connected to a sealing plug (604), the sealing plug (604) is fixedly connected to the sliding rod (603), the sliding rod (603) is sleeved with a third elastic member (605), the two ends of the third elastic member (605) are respectively fixedly connected to the second fixed plate (602) and the sealing plug (604), a limiting telescopic rod (606) is fixedly connected to the side of the first fixed plate (601) away from the sealing plug (604), the telescopic end of the limiting telescopic rod (606) is fixedly connected to the sliding rod (603) through the mounting plate, and the sliding sleeve (502) is provided with a limiting assembly, which is used to limit the collar (505).

8. A dust removal device with cleaning function for a coal mine shaft ventilation system as claimed in claim 7, characterized in that: The limiting telescopic rod (606) is configured as a damping rod, and is used to slow down the resetting speed of the sliding rod (603).

9. A dust removal device with cleaning function for a coal mine shaft ventilation system as claimed in claim 7, characterized in that: The elastic force of the third elastic member (605) is greater than the elastic force of the first elastic member (504), and is used to maintain the sealing performance between the sealing plug (604) and the piston (503).

10. A dust removal device with cleaning function for a coal mine shaft ventilation system as claimed in claim 7, characterized in that: The limiting assembly comprises limiting blocks (607) with equal circumferential spacing, the limiting blocks (607) with equal circumferential spacing are all slidably connected to the sliding sleeve (502), the limiting blocks (607) with equal circumferential spacing are used to push the collar (505), the limiting blocks (607) are arranged in an L shape, both ends of the limiting blocks (607) are arranged with inclined surfaces, the inner wall of the sliding sleeve (502) is fixedly connected to a second supporting plate (608) with equal circumferential spacing, the middle part of the second supporting plate (608) is fixedly connected to a fixing column (609), and the limiting blocks (607) are arranged with A circular through hole is provided, the fixed column (609) is slidably matched with the circular through hole of the adjacent limit block (607), the fixed column (609) is sleeved with a fourth elastic member (610), the two ends of the fourth elastic member (610) are respectively fixedly connected to the adjacent second support plate (608) and the adjacent limit block (607), the sliding rod (603) is fixedly connected to a fourth fixing ring (611), the fourth fixing ring (611) is fixedly connected to an extrusion plate (612) with circumferentially equal spacing, and the extrusion plate (612) is extruded and matched with the adjacent limit block (607).

Images