Mine tunnel ventilation device

Abstract

The present invention provides a mine tunnel ventilation device, which belongs to the field of mine tunnel ventilation technology and includes a ventilation duct, a filter plate, a guide assembly, and a drive assembly. The filter plate is fixedly installed inside the ventilation duct and is used to filter the air dust flowing along the inside of the ventilation duct. The guide assembly is arranged on the side of the filter plate and is used to guide the air flowing along the inside of the ventilation duct so that the air passes through the filter plate in a Z-shaped trajectory to achieve backwash cleaning of the filter plate. The drive assembly is installed on the outer wall of the ventilation duct and is used to drive the guide assembly to move back and forth along the side of the filter plate. Compared with the prior art, the embodiment of the present invention does not need to disassemble the filter plate when cleaning the filter plate, and also does not need to rely on external cleaning devices. It can achieve automatic online cleaning of the filter plate, and has the advantages of good filter plate cleaning effect and high cleaning efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of mine tunnel ventilation, in particular to a mine tunnel ventilation device. Background Art

[0002] Mine tunnel ventilation systems play a vital role in various types of mine operations, such as coal mines and metal mines. They are responsible for continuously supplying fresh air into the mine, exhausting harmful gases, dust, and dirty hot air, and ensuring the safety of the underground working environment.

[0003] In existing mine tunnel ventilation devices, filters are usually installed inside the ventilation ducts to filter out dust in the exhausted air, prevent the air from carrying dust into the outside world, and avoid environmental pollution. However, as the ventilation device continues to operate, dust accumulates on one side of the filter, which causes subsequent air circulation to be blocked, affecting the ventilation effect. Therefore, the filter needs to be cleaned regularly. In the existing technology, the filter is mostly cleaned by removing the filter from the inside of the ventilation duct for cleaning, or by using an external cleaning device to clean the filter. The former is more time-consuming and labor-intensive, and the ventilation device needs to stop running after the filter is removed, which affects the ventilation efficiency. Although the latter does not require the removal of the filter, the use of an external cleaning device will increase the equipment cost on the one hand, and require additional energy on the other hand. Summary of the Invention

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the embodiments of the present invention is to provide a mine tunnel ventilation device.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A mine tunnel ventilation device includes a ventilation duct, a filter plate, a guide assembly and a drive assembly. The filter plate is fixedly installed inside the ventilation duct and is used to filter air dust flowing along the inside of the ventilation duct. The guide assembly is arranged on the side of the filter plate and is used to guide the air flowing along the inside of the ventilation duct so that the air passes through the filter plate in a Z-shaped trajectory to achieve backflushing cleaning of the filter plate. The drive assembly is installed on the outer wall of the ventilation duct and is used to drive the guide assembly to move back and forth along the side of the filter plate.

[0007] As a further improvement of the present invention: the guide assembly includes a first curved plate and a second curved plate, the first curved plate is arranged on the side of the filter plate facing the air inlet end of the ventilation duct, and the second curved plate is arranged on the side of the filter plate facing the air outlet end of the ventilation duct, the upper end of the first curved plate is located on the inner side of the second curved plate, and the upper end of the second curved plate is located on the inner side of the first curved plate.

[0008] As a further improvement scheme of the present invention: a first connecting rod is fixedly provided on the side wall of the first curved plate, a second connecting rod is fixedly provided on the side wall of the second curved plate, the upper ends of the first connecting rod and the second connecting rod pass through the side wall of the ventilation duct and extend to the outside of the ventilation duct, and a bracket plate is fixedly provided on the side wall of the ventilation duct, and the driving assembly includes a turntable, a rotating shaft, a driving rod and a motor, and the motor is fixedly provided on the side wall of the bracket plate, one end of the rotating shaft is connected to the output end of the motor, and the other end is connected to the turntable, and the two ends of the driving rod are fixedly connected to the first connecting rod and the second connecting rod respectively, and a sliding groove is provided on the driving rod, and a push rod is fixedly provided at an eccentric position on the side of the turntable away from the motor, and the push rod extends from one end of the turntable to the inside of the sliding groove and movably cooperates with the sliding groove.

[0009] As a further improvement of the present invention: an extension plate is hingedly provided at the bottom of the first curved plate, one end of the extension plate extends to the outer side of the arc of the first curved plate and is connected to the first curved plate through a second elastic member, and the other end extends to the inner side of the arc of the first curved plate and is connected to a partition net, the second elastic member is used to provide elastic support for the extension plate, the bottom of the ventilation duct is located on one side of the filter plate and a dust collection port is also provided, a sealing plate is hingedly provided in the dust collection port, the bottom of the sealing plate is connected to the inner wall of the dust collection port through a first elastic member, the first elastic member is used to provide elastic support for the sealing plate, and a collection box connected to the dust collection port is provided at the bottom of the ventilation duct.

[0010] As a further improvement of the present invention: L-shaped tracks are fixedly provided on the bottom of the ventilation duct at opposite sides of the dust collection port, and protrusions matching the L-shaped tracks are fixedly provided on the upper ends of the side walls of the collection box.

[0011] As a further improvement of the present invention: the mine tunnel ventilation device also includes a vibration component, which is arranged on the side of the filter plate. When the guide component moves back and forth along the side of the filter plate, the vibration component is used to drive the filter plate to vibrate.

[0012] As a further improvement of the present invention: a number of vertically spaced inclined plates are provided on the inner side wall of the ventilation duct, the vibration assembly includes a vibration sleeve, an extension rod, a guide rod and a third elastic member, one end of the guide rod is fixedly connected to the arc-shaped inner wall of the second arc-shaped plate, and the other end extends to the interior of the vibration sleeve and telescopically cooperates with the vibration sleeve, one end of the third elastic member is connected to the arc-shaped inner wall of the second arc-shaped plate, and the other end is connected to the vibration sleeve, which is used to provide elastic support for the vibration sleeve, one end of the extension rod is fixedly connected to the vibration sleeve, and the other end extends between two adjacent groups of inclined plates.

[0013] As a further improvement of the present invention: a number of support shafts distributed vertically at intervals are fixedly provided on the inner wall of the ventilation duct, the number of the support shafts is the same as the number of the inclined plates, a sleeve is rotatably sleeved on the outside of each group of the support shafts, and a number of the inclined plates are correspondingly fixed on the outside of a number of the sleeves, a first baffle is fixedly provided on the inner wall of the ventilation duct at a position above the support shaft, a second baffle is fixedly provided on the inner wall of the ventilation duct at a position below the support shaft, a limit block is also fixedly provided on the side wall of the sleeve, and the limit block extends between the first baffle and the second baffle.

[0014] As a further improvement of the present invention: the first elastic member, the second elastic member and the third elastic member are springs or metal springs.

[0015] As a further improvement of the present invention: the filter plate is a perforated plate structure or a mesh plate structure.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] In the embodiment of the present invention, when it is necessary to ventilate the mine tunnel, the air inside the mine tunnel is extracted by the fan, so that the air enters the ventilation duct from the air inlet end, and then the air flows along the inside of the ventilation duct and passes through the filter plate and is output to the outside from the air outlet end of the ventilation duct. At this time, the dust carried by the air is intercepted on the side wall of the filter plate, thereby preventing the dust from being transported to the outside and causing environmental pollution. When the air first passes through the filter plate in a positive direction, the air can change direction and pass through the filter plate in the reverse direction through the setting of the guide component to back-blow the dust on the side wall of the filter plate, thereby realizing automatic cleaning of the filter plate and preventing the dust from clogging the filter plate. After the air passes through the filter plate in the reverse direction, it can change direction again and pass through the filter plate in the positive direction again. The filter plate is then output to the outside from the air outlet end of the ventilation duct. During the above process, the driving component drives the guide component to move back and forth along the side of the filter plate, and then guides the air at different positions of the filter plate to back-blow and clean the dust at different positions of the side wall of the filter plate, thereby improving the cleaning effect of the filter plate, and when the guide component moves back and forth, the vibration component drives the filter plate to vibrate, so that the dust can be better separated from the side wall of the filter plate, thereby further improving the cleaning effect of the dust on the side wall of the filter plate. Compared with the existing technology, there is no need to disassemble the filter plate when cleaning the filter plate, and there is no need to rely on external cleaning devices. The filter plate can be automatically cleaned online, which has the advantages of good filter plate cleaning effect and high cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of a mine tunnel ventilation device Figure 1 .

[0019] Figure 2 A schematic diagram of the structure of a mine tunnel ventilation device Figure 2 .

[0020] Figure 3 A schematic diagram of the structure of a mine tunnel ventilation device Figure 3 .

[0021] Figure 4 A schematic diagram of the structure of a mine tunnel ventilation device Figure 4 .

[0022] Figure 5 for Figure 1 Enlarged schematic diagram of area A in the middle.

[0023] Figure 6 for Figure 1 Enlarged schematic diagram of area B in the middle.

[0024] Figure 7 for Figure 1 Enlarged schematic diagram of area C in the middle.

[0025] Figure 8 for Figure 3 Enlarged schematic diagram of area D in the middle.

[0026] Figure 9 for Figure 4 Enlarged schematic diagram of area E in the middle.

[0027] In the figure: 10-ventilation duct, 101-sealing plate, 102-collecting box, 103-bracket plate, 104-support shaft, 105-inclined plate, 106-limiting block, 107-sleeve, 108-first gear rod, 109-second gear rod, 110-L-shaped track, 111-first elastic member, 20-filter plate, 30-guide assembly, 301-first arc plate, 302-first connecting rod, 303-second connecting rod, 304-second arc plate, 305-partition net, 306-extension plate, 307-second elastic member, 40-drive assembly, 401-turntable, 402-rotating shaft, 403-drive rod, 4031-chute, 404-motor, 405-push rod, 50-vibration assembly, 501-vibration sleeve, 502-extension rod, 503-guide rod, 504-third elastic member. DETAILED DESCRIPTION

[0028] The technical solution of the present invention will be further described in detail below in conjunction with specific implementation methods.

[0029] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0030] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and 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, and therefore cannot be understood as limiting the present invention.

[0031] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," and "disposed" should be understood in a broad sense. For example, they may refer to fixed connection or disposition, detachable connection or disposition, or integral connection or disposition. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0032] See also Figure 1 、 Figure 2 、 Figure 3 as well as Figure 4 , this embodiment provides a mine tunnel ventilation device, including a ventilation duct 10, a filter plate 20, a guide assembly 30, a driving assembly 40 and a vibration assembly 50, wherein the filter plate 20 is fixedly installed inside the ventilation duct 10, and is used to filter the dust in the air flowing along the inside of the ventilation duct 10, and the guide assembly 30 is arranged on the side of the filter plate 20, and is used to guide the air flowing along the inside of the ventilation duct 10, so that the air passes through the filter plate 20 in a Z-shaped trajectory to achieve backwash cleaning of the filter plate 20, and the driving assembly 40 is installed on the outer wall of the ventilation duct 10, and is used to drive the guide assembly 30 to reciprocate along the side of the filter plate 20, and the vibration assembly 50 is arranged on the side of the filter plate 20, and when the guide assembly 30 reciprocates along the side of the filter plate 20, the vibration assembly 50 is used to drive the filter plate 20 to vibrate.

[0033] When it is necessary to ventilate the mine tunnel, the air inside the mine tunnel is extracted by the fan, so that the air enters the ventilation duct 10 from the air inlet end of the ventilation duct 10, and then the air flows along the inside of the ventilation duct 10 and passes through the filter plate 20 and is output to the outside from the air outlet end of the ventilation duct 10. At this time, the dust carried by the air is intercepted on the side wall of the filter plate 20, thereby preventing the dust from being transported to the outside and causing environmental pollution. When the air first passes through the filter plate 20 in the forward direction, the air can change direction and pass through the filter plate 20 in the reverse direction through the setting of the guide component 30, so as to back-blow the dust on the side wall of the filter plate 20, thereby realizing automatic cleaning of the filter plate 20 and preventing dust from causing the filter If the plate 20 is blocked, the air can change direction again after passing through the filter plate 20 in the reverse direction and then pass through the filter plate 20 in the forward direction again, and then be output to the outside from the air outlet end of the ventilation duct 10. In the above process, the driving component 40 drives the guide component 30 to move back and forth along the side of the filter plate 20, and then guides the different positions of the filter plate 20 to back-blow and clean the dust at different positions of the side wall of the filter plate 20, thereby improving the cleaning effect of the filter plate 20, and when the guide component 30 moves back and forth, the vibration component 50 drives the filter plate 20 to vibrate, so that the dust can be better separated from the side wall of the filter plate 20, thereby further improving the cleaning effect of the dust on the side wall of the filter plate 20.

[0034] See also Figure 1 、 Figure 3 、 Figure 4 as well as Figure 6In one embodiment, the guide assembly 30 includes a first curved plate 301 and a second curved plate 304. The first curved plate 301 is arranged on the side of the filter plate 20 facing the air inlet end of the ventilation duct 10, and the second curved plate 304 is arranged on the side of the filter plate 20 facing the air outlet end of the ventilation duct 10. The upper end of the first curved plate 301 is located on the inner side of the second curved plate 304, and the upper end of the second curved plate 304 is located on the inner side of the first curved plate 301.

[0035] like Figure 6 As shown by the middle arrow, when the air flows along the inside of the ventilation duct 10, part of the air flow can pass through the filter plate 20 in the positive direction from above the first curved plate 301 and act on the curved inner wall of the second curved plate 304. After the air acts on the curved inner wall of the second curved plate 304, it is guided to the filter plate 20 by the curved inner wall of the second curved plate 304, so that the air passes through the filter plate 20 in the opposite direction and acts on the curved inner wall of the first curved plate 301. After the air acts on the curved inner wall of the first curved plate 301, it is guided to the filter plate 20 again by the curved inner wall of the first curved plate 301, so that the air passes through the filter plate 20 in the positive direction again (at this time, the air passes through the filter plate 20 three times in a Z-shaped trajectory), and then flows under the second curved plate 304, and finally is output through the air outlet end of the ventilation duct 10. When the air passes through the filter plate 20 in the reverse direction, the dust intercepted on the side wall of the filter plate 20 can be blown away, thereby realizing automatic cleaning of the filter plate 20.

[0036] See also Figure 1 、 Figure 2 as well as Figure 5 In one embodiment, a first connecting rod 302 is fixedly provided on the side wall of the first curved plate 301, and a second connecting rod 303 is fixedly provided on the side wall of the second curved plate 304. The upper ends of the first connecting rod 302 and the second connecting rod 303 pass through the side wall of the ventilation duct 10 and extend to the outside of the ventilation duct 10. A bracket plate 103 is fixedly provided on the side wall of the ventilation duct 10. The driving assembly 40 includes a turntable 401, a rotating shaft 402, a driving rod 403 and a motor 404. The motor 404 is fixedly provided on the side wall of the ventilation duct 10. On the side wall of the bracket plate 103, one end of the rotating shaft 402 is connected to the output end of the motor 404, and the other end is connected to the turntable 401. The two ends of the driving rod 403 are respectively fixedly connected to the first connecting rod 302 and the second connecting rod 303. A sliding groove 4031 is provided on the driving rod 403. A push rod 405 is fixedly provided at an eccentric position on the side of the turntable 401 away from the motor 404. The end of the push rod 405 away from the turntable 401 extends to the inside of the sliding groove 4031 and movably cooperates with the sliding groove 4031.

[0037] When the filter plate 20 intercepts and filters the dust in the air, the motor 404 is started, and the motor 404 drives the rotating shaft 402 to rotate, and then drives the turntable 401 to rotate. When the turntable 401 rotates, it drives the push rod 405 to move in a circle. When the push rod 405 moves in a circle, it can drive the driving rod 403, the first connecting rod 302 and the second connecting rod 303 to move back and forth compared with the ventilation duct 10 through the active cooperation with the slide groove 4031. The first connecting rod 302 and the second connecting rod 303 drive the first curved plate 301 and the second curved plate 304 to move back and forth on the opposite sides of the filter plate 20 respectively. When the first curved plate 301 and the second curved plate 304 move back and forth up and down, the dust at different positions on the side wall of the filter plate 20 can be backblown and cleaned with the help of the diversion effect.

[0038] See also Figure 1 、 Figure 6 as well as Figure 7 In one embodiment, an extension plate 306 is hingedly provided at the bottom of the first curved plate 301, one end of the extension plate 306 extends to the outer side of the arc of the first curved plate 301 and is connected to the first curved plate 301 through a second elastic member 307, and the other end extends to the inner side of the arc of the first curved plate 301 and is connected to a partition net 305, and the second elastic member 307 is used to provide elastic support for the extension plate 306, and a dust collection port is also provided at the bottom of the ventilation duct 10 on one side of the filter plate 20, and a sealing plate 101 is hingedly provided in the dust collection port, and the bottom of the sealing plate 101 is connected to the inner wall of the dust collection port through a first elastic member 111, and the first elastic member 111 is used to provide elastic support for the sealing plate 101, and a collection box 102 connected to the dust collection port is provided at the bottom of the ventilation duct 10.

[0039] When the second curved plate 304 guides the air to the filter plate 20 so that the air passes through the filter plate 20 in the reverse direction, the air blows back the dust on the side wall of the filter plate 20, and the dust blown back acts on the curved inner wall of the first curved plate 301, and then is intercepted to the inner side of the partition 305, thereby realizing temporary collection of the dust; when the motor 404 drives the turntable 401 to rotate and then drives the first curved plate 301 to move down along one side of the filter plate 20 to the inner bottom position of the ventilation duct 10, the extension plate 306 acts on the sealing plate 101 then rotates relative to the first curved plate 301, and at the same time, the sealing plate 101 is pushed and rotates toward the inside of the collection box 102. When the extension plate 306 rotates, the partition net 305 is driven to rotate. When the sealing plate 101 rotates, the dust collection port is opened. The partition net 305 rotates to maintain a tangent state with the first curved plate 301 and extends from the opened dust collection port to the inside of the collection box 102, so that the dust intercepted on the inside of the partition net 305 can slide into the inside of the collection box 102, thereby realizing the final collection of the dust. After the air 305 extends to the inside of the collection box 102, it is guided by the curved inner wall of the second curved plate 304 and then passes through the filter plate 20 in the reverse direction and acts on the curved inner wall of the first curved plate 301 again. The air is introduced into the collection box 102 through the curved inner wall of the first curved plate 301, thereby blowing the dust inside the partition 305, so that the dust can smoothly enter the collection box 102, thereby improving the dust collection effect. When the dust enters the collection box 102, the motor 40 The first curved plate 301 and the second curved plate 304 are driven to move upward, and the first elastic member 111 pushes the sealing plate 101 to rotate in the opposite direction to re-block the dust collection port. At the same time, the second elastic member 307 pushes the extension plate 306 to rotate in the opposite direction relative to the first curved plate 301, thereby driving the partition net 305 to rotate in the opposite direction, so that the partition net 305 extends back to the inner side of the arc of the first curved plate 301 to continue to intercept dust that is subsequently blown back to the inner side of the arc of the first curved plate 301.

[0040] See also Figure 7 In one embodiment, L-shaped rails 110 are fixedly provided on the bottom of the ventilation duct 10 on opposite sides of the dust collection port, and protrusions that cooperate with the L-shaped rails 110 are fixedly provided on the upper end of the side wall of the collection box 102.

[0041] The upper end of the side wall of the collection box 102 is snap-fitted with the L-shaped track 110 through a protrusion, so that the collection box 102 can be quickly assembled and disassembled, so as to facilitate cleaning of dust inside the collection box 102.

[0042] See also Figure 8 as well as Figure 9In one embodiment, a plurality of vertically spaced inclined plates 105 are provided on the inner side wall of the ventilation duct 10, and the vibration assembly 50 includes a vibration sleeve 501, an extension rod 502, a guide rod 503 and a third elastic member 504. One end of the guide rod 503 is fixedly connected to the arc-shaped inner wall of the second arc-shaped plate 304, and the other end extends to the interior of the vibration sleeve 501 and telescopically cooperates with the vibration sleeve 501. One end of the third elastic member 504 is connected to the arc-shaped inner wall of the second arc-shaped plate 304, and the other end is connected to the vibration sleeve 501, for providing elastic support for the vibration sleeve 501. One end of the extension rod 502 is fixedly connected to the vibration sleeve 501, and the other end extends between two adjacent groups of the inclined plates 105.

[0043] When the motor 404 drives the first curved plate 301 and the second curved plate 304 to move along the side of the filter plate 20, the second curved plate 304 drives the guide rod 503, the third elastic member 504, the extension rod 502 and the vibration sleeve 501 to move synchronously as a whole. When the extension rod 502 moves, it acts on the inclined surfaces of several inclined plates 105 in turn, and is then pushed by several inclined plates 105 to drive the vibration sleeve 501 away from the filter plate 20. At this time, the vibration sleeve 501 slides along the outside of the guide rod 503, and the third elastic member 504 is compressed. When the extension rod 502 slides away from one end of a group of inclined plates 105, the third elastic member 504 pushes the vibration sleeve 501 so that the vibration sleeve 501 moves toward the filter plate 20 and hits the filter plate 20, thereby causing the filter plate 20 to vibrate, so as to vibrate away the dust intercepted on the side wall of the filter plate 20, thereby improving the dust backblowing effect.

[0044] See also Figure 8 as well as Figure 9 In one embodiment, a plurality of support shafts 104 are fixedly provided on the inner wall of the ventilation duct 10 with vertical intervals. The number of the support shafts 104 is the same as the number of the inclined plates 105. A sleeve 107 is rotatably sleeved on the outside of each group of the support shafts 104. A plurality of the inclined plates 105 are correspondingly fixedly provided on the outside of a plurality of the sleeves 107. A first baffle 108 is fixedly provided on the inner wall of the ventilation duct 10 above the support shaft 104. A second baffle 109 is fixedly provided on the inner wall of the ventilation duct 10 below the support shaft 104. A limit block 106 is also fixedly provided on the side wall of the sleeve 107. The limit block 106 extends between the first baffle 108 and the second baffle 109.

[0045] Initially, one end of the plurality of inclined plates 105 away from the corresponding sleeve 107 is tilted downward, and the limit block 106 acts on one side of the first stop rod 108. When the motor 404 drives the first curved plate 301 and the second curved plate 304 to move downward along the side of the filter plate 20, the second curved plate 304 drives the guide rod 503, the third elastic member 504, the extension rod 502 and the vibration sleeve 501 to move downward synchronously as a whole. When the extension rod 502 moves downward, it acts on the upper inclined surfaces of the plurality of inclined plates 105 in turn. When the extension rod 50 When the extension rod 502 acts on the upper inclined surface of a certain group of inclined plates 105, the vibration sleeve 501 can be driven away from the filter plate 20, causing the third elastic member 504 to be compressed. When the extension rod 502 slides away from one end of the upper inclined surface of the inclined plate 105, the third elastic member 504 pushes the vibration sleeve 501 so that the vibration sleeve 501 moves toward the filter plate 20 and hits the filter plate 20, thereby causing the filter plate 20 to vibrate. When the second curved plate 304 moves down to the bottom position inside the ventilation duct 10, the motor 404 drives the first curved plate 304 to move. 01 and the second curved plate 304 move upward, the second curved plate 304 drives the guide rod 503, the third elastic member 504, the extension rod 502 and the vibration sleeve 501 to move upward as a whole, and the extension rod 502 acts on the lower inclined surface of the plurality of inclined plates 105 in sequence when moving upward, thereby pushing the plurality of inclined plates 105 so that the plurality of inclined plates 105 drive the corresponding sleeves 107 to rotate in sequence compared with the corresponding support shaft 104, and the sleeve 107 drives the limit block 106 to rotate, and when the limit block 106 rotates to contact with the second gear rod 109 , the sleeve 107 and the inclined plate 105 stop rotating. At this time, the inclined plate 105 rotates to an upward tilt away from the end of the sleeve 107. The lower inclined surface of the upward inclined plate 105 can push the upward extension rod 502 again, so that the vibration sleeve 501 is away from the filter plate 20 again. Until the extension rod 502 slides away from one end of the lower inclined surface of the inclined plate 105, the third elastic member 504 pushes the vibration sleeve 501 again so that the vibration sleeve 501 hits the filter plate 20, thereby causing the filter plate 20 to vibrate.

[0046] In one embodiment, the first elastic member 111 , the second elastic member 307 and the third elastic member 504 may be springs or metal springs, which are not limited here.

[0047] In one embodiment, the filter plate 20 can be a perforated plate structure or a mesh plate structure, which is not limited here.

[0048] In the embodiment of the present invention, when it is necessary to ventilate the mine tunnel, the air inside the mine tunnel is extracted by the fan, so that the air enters the ventilation duct 10 from the air inlet end of the ventilation duct 10, and then the air flows along the inside of the ventilation duct 10 and passes through the filter plate 20 and is output to the outside from the air outlet end of the ventilation duct 10. At this time, the dust carried by the air is intercepted on the side wall of the filter plate 20, thereby preventing the dust from being transported to the outside and causing environmental pollution. When the air first passes through the filter plate 20 in the forward direction, the air can be changed in direction and pass through the filter plate 20 in the reverse direction through the setting of the guide component 30, so as to back-blow the dust on the side wall of the filter plate 20, realize the automatic cleaning of the filter plate 20, and prevent the dust from causing the blockage of the filter plate 20. After the air passes through the filter plate 20 in the reverse direction, it can change direction again and pass through the filter plate 2 in the forward direction again. 0, and then output it to the outside from the outlet end of the ventilation duct 10. During the above process, the driving component 40 drives the guide component 30 to move back and forth along the side of the filter plate 20, and then guides the air at different positions of the filter plate 20 to back-blow and clean the dust at different positions of the side wall of the filter plate 20, thereby improving the cleaning effect of the filter plate 20, and when the guide component 30 moves back and forth, the vibration component 50 drives the filter plate 20 to vibrate, so that the dust can be better separated from the side wall of the filter plate 20, thereby further improving the cleaning effect of the dust on the side wall of the filter plate 20. Compared with the prior art, when cleaning the filter plate 20, there is no need to disassemble the filter plate 20, and there is no need to rely on an external cleaning device. The filter plate 20 can be automatically cleaned online, which has the advantages of good cleaning effect and high cleaning efficiency of the filter plate 20.

[0049] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A mine tunnel ventilation device, characterized in that: It comprises a ventilation duct (10), a filter plate (20), a flow guide assembly (30), and a drive assembly (40); The filter plate (20) is fixedly mounted inside the ventilation duct (10) and is used to filter dust in the air flowing along the inside of the ventilation duct (10); The guide assembly (30) is arranged on the side of the filter plate (20) and is used to guide the air flowing along the interior of the ventilation duct (10), so that the air passes through the filter plate (20) in a Z-shaped trajectory, thereby achieving backwash cleaning of the filter plate (20); The driving assembly (40) is mounted on the outer wall of the ventilation duct (10) and is used to drive the flow guide assembly (30) to move back and forth along the side of the filter plate (20); The flow guide assembly (30) comprises a first curved plate (301) and a second curved plate (304); The first curved plate (301) is arranged on a side of the filter plate (20) facing the air inlet end of the ventilation duct (10), and the second curved plate (304) is arranged on a side of the filter plate (20) facing the air outlet end of the ventilation duct (10), the upper end of the first curved plate (301) is located inside the second curved plate (304), and the upper end of the second curved plate (304) is located inside the first curved plate (301); A first connecting rod (302) is fixedly provided on the side wall of the first curved plate (301), and a second connecting rod (303) is fixedly provided on the side wall of the second curved plate (304); the upper ends of the first connecting rod (302) and the second connecting rod (303) pass through the side wall of the ventilation duct (10) and extend to the outside of the ventilation duct (10); A bracket plate (103) is fixedly provided on the side wall of the ventilation duct (10); The driving assembly (40) includes a rotating disk (401), a rotating shaft (402), a driving rod (403), and a motor (404); The motor (404) is fixedly arranged on the side wall of the bracket plate (103), one end of the rotating shaft (402) is connected to the output end of the motor (404), and the other end is connected to the turntable (401), the two ends of the driving rod (403) are respectively fixedly connected to the first connecting rod (302) and the second connecting rod (303), a sliding groove (4031) is provided on the driving rod (403), and a push rod (405) is fixedly arranged at an eccentric position on the side of the turntable (401) away from the motor (404), and the push rod (405) extends from one end of the turntable (401) to the inside of the sliding groove (4031) and movably cooperates with the sliding groove (4031).

2. A mine tunnel ventilation device according to claim 1, characterized in that: An extension plate (306) is hingedly provided at the bottom of the first curved plate (301), one end of the extension plate (306) extends to the outer side of the arc of the first curved plate (301) and is connected to the first curved plate (301) via a second elastic member (307), and the other end extends to the inner side of the arc of the first curved plate (301) and is connected to a partition net (305), and the second elastic member (307) is used to provide elastic support for the extension plate (306); A dust collection port is further provided at the bottom of the ventilation duct (10) on one side of the filter plate (20), a sealing plate (101) is hingedly provided in the dust collection port, the bottom of the sealing plate (101) is connected to the inner wall of the dust collection port via a first elastic member (111), the first elastic member (111) is used to provide elastic support for the sealing plate (101), and a collection box (102) is provided at the bottom of the ventilation duct (10) and is in communication with the dust collection port.

3. A mine tunnel ventilation device according to claim 2, characterized in that: L-shaped rails (110) are fixedly provided at the bottom of the ventilation duct (10) on opposite sides of the dust collection port, and protrusions matching the L-shaped rails (110) are fixedly provided at the upper ends of the side walls of the collection box (102).

4. A mine tunnel ventilation device according to claim 2, characterized in that: The mine tunnel ventilation device further comprises a vibration component (50), wherein the vibration component (50) is arranged on the side of the filter plate (20), and when the guide component (30) reciprocates along the side of the filter plate (20), the vibration component (50) is used to drive the filter plate (20) to vibrate.

5. A mine tunnel ventilation device according to claim 4, characterized in that: A plurality of vertically spaced inclined plates (105) are provided on the inner side wall of the ventilation duct (10); The vibration assembly (50) comprises a vibration sleeve (501), an extension rod (502), a guide rod (503), and a third elastic member (504); One end of the guide rod (503) is fixedly connected to the arc-shaped inner wall of the second arc-shaped plate (304), and the other end extends into the interior of the vibration sleeve (501) and is telescopically matched with the vibration sleeve (501). One end of the third elastic member (504) is connected to the arc-shaped inner wall of the second arc-shaped plate (304), and the other end is connected to the vibration sleeve (501), and is used to provide elastic support for the vibration sleeve (501). One end of the extension rod (502) is fixedly connected to the vibration sleeve (501), and the other end extends between two adjacent groups of the inclined plates (105).

6. A mine tunnel ventilation device according to claim 5, characterized in that: A plurality of support shafts (104) are fixedly provided on the inner wall of the ventilation duct (10) and are distributed at intervals in a vertical direction. The number of the support shafts (104) is the same as the number of the inclined plates (105). A sleeve (107) is rotatably sleeved on the outside of each group of the support shafts (104). The inclined plates (105) are correspondingly fixedly provided on the outside of the sleeves (107). A first stop rod (108) is fixedly provided on the inner wall of the ventilation duct (10) at a position above the support shaft (104), and a second stop rod (109) is fixedly provided on the inner wall of the ventilation duct (10) at a position below the support shaft (104). A limit block (106) is also fixedly provided on the side wall of the sleeve (107), and the limit block (106) extends between the first stop rod (108) and the second stop rod (109).

7. A mine tunnel ventilation device according to claim 5, characterized in that: The first elastic member (111), the second elastic member (307) and the third elastic member (504) are springs or metal springs.

8. A mine tunnel ventilation device according to claim 1, characterized in that: The filter plate (20) is a perforated plate structure or a mesh plate structure.

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