Low-noise mine ventilation equipment

Abstract

The invention relates to the technical field of mine ventilation equipment, and discloses low-noise mine ventilation equipment which comprises a ventilation air duct, a ventilation fan and a ventilation filter screen, a dust falling mechanism for reducing the dust content is rotationally arranged on the air inlet side of the ventilation filter screen, and the dust falling mechanism comprises a water storage bin rotationally arranged on the air inlet side of the ventilation filter screen; a dust falling sleeve is arranged on the water storage bin in a communicating mode, a water sealing mechanism, an upper rotating mechanism, a sealing mechanism, a lower rotating mechanism and a liquid spraying mechanism are sequentially arranged in the dust falling sleeve, and a driving mechanism for driving the water storage bin to rotate and a linkage mechanism for driving the sealing mechanism to slide along the dust falling sleeve in a reciprocating mode are arranged on the ventilation filter screen; water in the water storage bin is sprayed out through cooperation of the sealing mechanism and the liquid spraying mechanism to achieve dust falling operation, blockage of a ventilation filter screen is avoided, the situation that air in a mine is insufficient and harmful gas cannot be discharged is avoided, the safety of operators is guaranteed, noise caused by aerodynamic force is reduced, and the operation environment of the operators is optimized.

Description

Technical Field

[0001] The invention relates to the technical field of mine ventilation equipment, in particular to low-noise mine ventilation equipment. Background Art

[0002] Mine ventilation equipment is an important facility to ensure mine safety and workers' health. Its main function is to provide fresh air into the mine and to discharge harmful gases in the mine in time.

[0003] Existing mine ventilation equipment usually consists of an air duct with a fan inside. When in use, the air duct is set inside the mine, and the air flow in the mine is achieved by the fan. In order to avoid the loss of minerals and pollution to the environment, a filter is usually installed on the air inlet side of the air duct. However, due to the large amount of dust in the mine and the lack of dust reduction means in the existing mine ventilation equipment, the filter is easily blocked, which requires operators to frequently maintain the filter, increasing the workload of the operators and reducing the operating efficiency. If the cleaning is not timely, the output efficiency of the ventilation equipment will be significantly reduced due to the blockage of the filter, thereby causing insufficient air in the mine and the inability to discharge harmful gases in time, affecting the safety of the operators. In addition, the existing ventilation equipment is noisy when in operation, which further worsens the working environment of the operators. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the above difficulties and provide a low-noise mine ventilation device.

[0005] To solve the above technical problems, the technical solution provided by the present invention is: a low-noise mine ventilation equipment, including a ventilation duct, a ventilation fan and a ventilation filter are arranged in the ventilation duct, a dust reduction mechanism for reducing dust content is rotatably arranged on the air inlet side of the ventilation filter, the dust reduction mechanism includes a water storage bin rotatably arranged on the air inlet side of the ventilation filter, a dust reduction casing is connected to the water storage bin, a water sealing mechanism, an upper rotating mechanism, a sealing mechanism, a lower rotating mechanism and a liquid spraying mechanism are sequentially arranged in the dust reduction casing, the sealing mechanism is slidably connected to the dust reduction casing, the upper and lower ends of the sealing mechanism are respectively connected to the upper rotating mechanism and the lower rotating mechanism, the upper rotating mechanism and the lower rotating mechanism have the same structure, the upper rotating mechanism cooperates with the water sealing mechanism to make liquid enter and exit the dust reduction casing, the lower rotating mechanism cooperates with the liquid spraying mechanism to make liquid sprayed by the liquid spraying mechanism, the ventilation filter is provided with a driving mechanism for driving the water storage bin to rotate and a linkage mechanism for driving the sealing mechanism to slide back and forth along the dust reduction casing.

[0006] As an improvement, the sealing mechanism includes a sealing piston slidably arranged in the dust suppression sleeve, a sealing cavity is provided in the sealing piston, the sealing cavity is an open structure at both ends, a sealing block is slidably arranged in the sealing cavity, and a sealing spring connected to the sealing block is provided in the sealing cavity.

[0007] As an improvement, a sealing magnetic ring is provided on the sealing piston, and the linkage mechanism includes a limit bracket arranged on the ventilation filter, the limit bracket includes a limit support rod connected to the ventilation filter, the limit support rod is provided with a limit slide groove, the limit slide groove is a V-shaped structure, a sliding bracket is slidably sleeved on the dust reduction sleeve, the sliding bracket includes a sliding magnetic ring slidably connected to the dust reduction sleeve, the sliding magnetic ring and the sealing magnetic ring have opposite magnetic properties, the sliding magnetic ring is provided with a sliding block slidably matched with the limit slide groove, and the dust reduction sleeve is sleeved with a reset spring connected to the sliding magnetic ring.

[0008] As an improvement, the lower rotating mechanism includes a positioning bracket arranged in the dust suppression sleeve, a sliding sleeve connected to the sealing piston is slidably provided on the positioning bracket, a driving column is rotatably provided on the positioning bracket, a driving slide is provided on the driving column, the driving slide includes a longitudinal groove and an inclined groove connected to each other, a telescopic joint is provided in the sliding sleeve, a connecting slider slidably matched with the driving slide is provided on the telescopic joint, a sliding spring connected to the connecting slider is sleeved on the telescopic joint, and a driving spring connected to the sliding sleeve is provided on the driving column.

[0009] As an improvement, the liquid spray mechanism includes a liquid spray storage bin connected to the dust suppression sleeve, a liquid spray head is connected to the liquid spray storage bin, a supporting slide column is provided in the liquid spray storage bin, a supporting slide plate that is slidably provided on the supporting slide column and seals with the liquid spray storage bin is provided, the liquid spray storage bin is provided with a supporting spring connected to the supporting slide plate, the supporting slide plate is provided with a mating ratchet, and the driving column is provided with an end face ratchet that meshes with the mating ratchet.

[0010] As an improvement, the water sealing mechanism includes a water sealing grille arranged at the upper end of the dust reduction sleeve, the water sealing grille is provided with a water sealing slide column, the water sealing slide column is slidably connected with a water sealing block that seals with the dust reduction sleeve, the water sealing block is provided with a water sealing ratchet that meshes with the end face ratchet, and the water sealing slide column is sleeved with a water sealing spring connected to the water sealing block.

[0011] As an improvement, an output shaft is provided at the output end of the ventilation fan, and a plurality of groups of ventilation blades are equidistantly arranged around the output shaft. The ventilation blades include supporting blades and wing angle blades, and the air inlet side of the wing angle blades is provided with guide serrations.

[0012] As an improvement, the driving mechanism includes a driving sleeve arranged on the water storage bin, a plurality of driving blades are equidistantly arranged around the driving sleeve, a cleaning plate is arranged on the driving sleeve, and a cleaning brush cooperating with the ventilation filter is arranged on the cleaning plate.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the driving mechanism drives the water storage bin to rotate in a circle, and the sealing mechanism of the water storage bin reciprocates along the dust suppression sleeve during the rotation of the water storage bin. When the sealing mechanism slides downward, the sealing mechanism cooperates with the liquid spraying mechanism to spray water in the water storage bin, and the sprayed water falls under the action of gravity after contacting with the dust, thereby achieving dust reduction, avoiding blockage of the ventilation filter, ensuring the ventilation efficiency of the present invention, avoiding insufficient air in the mine and the inability to discharge harmful gases, ensuring the safety of the operators, and supporting the arrangement of the blades, wing angle blades and guide serrations, reducing the gas pressure pulse noise caused by the periodic impact of the ventilation blades on the air during the rotation process and the noise generated by the air attached to the ventilation blades continuously falling off into vortices during the rotation process, thereby optimizing the working environment of the operators. Specifically:

[0014] 1. When the dust suppression sleeve rotates with the water storage bin, the V-shaped limit slide guides the sliding block, thereby driving the sliding magnetic ring to slide back and forth periodically along the dust suppression sleeve. The sliding magnetic ring drives the sealing magnetic ring with opposite magnetic properties to reciprocate, which conveniently realizes the drainage and replenishment of the dust suppression sleeve without the need to set sensors or other electronic components, thereby improving the stability of operation, reducing the maintenance frequency of operators, and reducing the workload of operators;

[0015] 2. The sealing piston drives the sliding sleeve to slide back and forth along the positioning bracket during the reciprocating sliding process, and the sliding sleeve drives the telescopic joint, the sliding spring and the connecting slider to move synchronously. Furthermore, the reciprocating connecting slider remains connected to the driving slide slot under the cooperation of the telescopic joint and the sliding spring, thereby driving the driving column to intermittently rotate at the same angle. The driving column coordinated with the liquid spraying mechanism drives the liquid spraying mechanism to open during the rotation process, and the water in the dust reduction sleeve is sprayed out, so as to conveniently realize the dust reduction operation. The driving column coordinated with the water sealing mechanism drives the water sealing mechanism to open during the rotation process, and the water in the water storage tank is added into the dust reduction sleeve, so as to ensure that there is sufficient water in the dust reduction sleeve and ensure the efficient dust reduction operation of the liquid spraying mechanism.

[0016] 3. The rotating driving column drives the end ratchet to rotate, and the end ratchet drives the supporting slide plate to reciprocate through the mating ratchet engaged with it, thereby realizing the entry and sealing of the liquid in the spray storage tank, facilitating the replenishment of water into the spray storage tank, so that the spray head obtains sufficient water source, and the end ratchet matched with the water sealing ratchet drives the water sealing block to slide reciprocatingly along the water sealing slide column, so that the dust suppression sleeve can be easily replenished and sealed, thereby improving the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a low-noise mine ventilation device of the present invention.

[0018] Figure 2 It is an exploded view of a low-noise mine ventilation device of the present invention.

[0019] Figure 3 It is a cross-sectional view of a low-noise mine ventilation device of the present invention.

[0020] Figure 4 It is an exploded view of the cooperation between a driving mechanism and a dust suppression mechanism of a low-noise mine ventilation device of the present invention.

[0021] Figure 5 It is an exploded view of the dust reduction sleeve part of a low-noise mine ventilation device of the present invention.

[0022] Figure 6 The present invention is a cross-sectional view of a dust reduction sleeve portion of a low-noise mine ventilation device.

[0023] Figure 7 It is an exploded view of the sealing mechanism part of a low-noise mine ventilation device of the present invention.

[0024] Figure 8 It is a cross-sectional view of a sealing mechanism portion of a low-noise mine ventilation device according to the present invention.

[0025] Fig. 9 It is an exploded view of the lower rotating mechanism part of a low-noise mine ventilation device of the present invention.

[0026] Fig.10 The present invention is a cross-sectional view of the lower rotating mechanism of a low-noise mine ventilation device.

[0027] Fig.11 It is an exploded view of the liquid spraying mechanism part of a low-noise mine ventilation device of the present invention.

[0028] Fig.12 It is an exploded view of the water sealing mechanism part of a low-noise mine ventilation device of the present invention.

[0029] Fig.13 The present invention is a structural schematic diagram of a ventilation fan part of a low-noise mine ventilation device.

[0030] As shown in the figure: 1. Ventilation duct; 11. Ventilation fan; 111. Output shaft; 112. Ventilation blade; 1121. Support blade; 1122. Wing angle blade; 11221. Guide sawtooth; 12. Ventilation filter; 13. Deflector; 131. Guide plate; 14. Mounting feet; 15. Water tank; 16. Air outlet duct; 2. Air inlet duct; 21. Air inlet hole; 3. Silencer; 31. Silencer; 32. Silencer inclined plate; 33. Guide plate; 3 4. Sound insulation pad; 4. Driving mechanism; 41. Driving sleeve; 42. Cleaning plate; 421. Cleaning brush; 43. Driving blade; 5. Dust suppression mechanism; 51. Water storage tank; 52. Dust suppression sleeve; 521. Positioning slide; 522. Sealing mechanism; 5221. Sealing piston; 5222. Sealing chamber; 5223. Sealing block; 5224. Sealing spring; 5225. Sealing magnetic ring; 5226. Sealing bracket; 5227. Sealing rubber ring; 5228. Sealing rubber ring; 523, lower rotating mechanism; 5231, positioning bracket; 52311, liquid hole; 5232, sliding sleeve; 52321, telescopic joint; 52322, connecting slider; 52323, sliding spring; 5233, driving column; 52331, driving slide; 5234, driving spring; 5235, end face ratchet; 524, liquid spraying mechanism; 5241, liquid spraying storage bin; 5242, supporting slide plate; 5243, liquid spraying head; 5 244, supporting slide column; 5245, supporting spring; 5246, cooperating ratchet; 525, upper rotating mechanism; 526, water sealing mechanism; 5261, water sealing grille; 5262, water sealing block; 5263, water sealing ratchet; 5264, water sealing slide column; 5265, water sealing spring; 527, reset spring; 53, sliding bracket; 531, sliding magnetic ring; 532, sliding block; 54, limiting bracket; 541, limiting support rod; 542, limiting slide groove. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0032] Combined with Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 , Attachment Figure 5 , Attachment Figure 6 With attached Fig.13As shown, a low-noise mine ventilation equipment comprises a ventilation duct 1, an air inlet duct 2 is arranged on the air inlet side of the ventilation duct 1, an air outlet duct 16 is arranged on the air outlet side of the ventilation duct 1, mounting legs 14 are arranged on the outer sides of the ventilation duct 1 and the air outlet duct 16, a deflector 13 is arranged on the air outlet duct 16, a deflector 13 is arranged on the air outlet duct 16, a deflector plate 131 connected to the air outlet duct 16 is arranged on the deflector 13, an air inlet hole 21 is arranged around the air inlet duct 2, a silencer mechanism 3 is arranged in the air inlet duct 2, the silencer mechanism 3 comprises a silencer 31 arranged in the air inlet duct 2, a silencer inclined plate 32 is arranged at one end of the silencer 31, a plurality of silencer inclined plates 32 are arranged equidistantly along the circumferential direction of the silencer 31, and the silencer inclined plates 32 are all arranged obliquely, a guide plate 33 is arranged at one end of the air inlet duct 2 away from the air inlet hole 21, and the guide plate 33 is arranged in a cross-shaped structure, a cavity is arranged on the air outlet duct 16, and a sound insulation pad 34 is arranged in the cavity;

[0033] The ventilation duct 1 is provided with a ventilation fan 11 and a ventilation filter 12, and the ventilation fan 11 is symmetrically arranged. The air inlet side of the ventilation filter 12 is rotatably provided with a dust reduction mechanism 5 for reducing the dust content. The dust reduction mechanism 5 includes a water storage bin 51 rotatably arranged on the air inlet side of the ventilation filter 12. The ventilation duct 1 is provided with a water tank 15 connected with the water storage bin 51 through a pipeline. A rotating sealing joint is provided at the connection between the pipeline and the water storage tank 15. The water storage bin 51 will not drive the pipeline to rotate during rotation. This is the current existing technology and will not be repeated here. A dust reduction sleeve 52 is connected to the water storage bin 51. A water sealing mechanism 526, an upper rotating mechanism 525, a sealing mechanism 522, a lower rotating mechanism 523 and a liquid spraying mechanism 524 are sequentially arranged in the dust reduction sleeve 52. The ventilation filter 12 is provided with a driving mechanism 4 for driving the water storage bin 51 to rotate and a linkage mechanism for driving the sealing mechanism 522 to slide back and forth along the dust reduction sleeve 52.

[0034] The working principle of the present invention is as follows: when the ventilation fan 11 is in operation, the ambient air enters the air inlet duct 2 from the air inlet hole 21, and the ambient air enters the ventilation duct 1 from the air inlet duct 2. The ambient air passes through the silencer 31, the silencer inclined plate 32, and the guide plate 33 in sequence and then contacts the ventilation filter 12. The filtered ambient air passes through the guide plate 131 and the guide 13 in sequence and then flows out, completing the ventilation operation of the mine. The split structure of the air inlet duct 2 and the air outlet duct 16 is convenient for disassembly and assembly, and is convenient for maintenance of the ventilation duct 1.

[0035] During this process, the setting of the air inlet 21 changes the ventilation duct 1 from the traditional axial air inlet to the lateral air inlet, thereby changing the way the ambient air enters and reducing the noise caused by aerodynamics. At the same time, the setting of the air inlet 21 can filter large-sized impurities, preventing large-sized impurities from entering the ventilation duct 1 and causing damage to the ventilation fan 11, and preventing the ventilation filter 12 from being blocked. Furthermore, the silencer 31, the silencer inclined plate 32, the guide plate 33 and the sound insulation pad 34 cooperate to reduce the backflow phenomenon when the ambient air flows out, and reduce the resistance to the ambient air outflow, thereby reducing the noise caused by aerodynamics during the operation of the present invention, optimizing the working environment, and protecting the physical and mental health of the operators.

[0036] Combined with Figure 1 , Attachment Figure 2 , Attachment Figure 3 With attached Fig.13 As shown, the output end of the ventilation fan 11 is provided with an output shaft 111, and a plurality of ventilation blades 112 are equidistantly arranged around the output shaft 111. The ventilation blades 112 include supporting blades 1121 and wing angle blades 1122. The air inlet side of the wing angle blades 1122 is provided with guide serrations 11221, so as to reduce the gas pressure pulse noise caused by the periodic impact of the ventilation blades 112 on the air during rotation and the noise generated by the air attached to the ventilation blades 112 continuously falling off into vortices during rotation, thereby optimizing the working environment of the operators.

[0037] Combined with Figure 5 , Attachment Figure 6 , Attachment Figure 7 With attached Figure 8 As shown, the sealing mechanism 522 is slidably connected to the dust suppression sleeve 52, and the upper and lower ends of the sealing mechanism 522 are respectively connected to an upper rotating mechanism 525 and a lower rotating mechanism 523, the upper rotating mechanism 525 and the lower rotating mechanism 523 have the same structure, the upper rotating mechanism 525 cooperates with the water sealing mechanism 526 to allow liquid to enter and exit the dust suppression sleeve 52, and the lower rotating mechanism 523 cooperates with the liquid spraying mechanism 524 to allow liquid to be sprayed out by the liquid spraying mechanism 524. The sealing mechanism 522 includes a sealing piston 5221 slidably arranged in the dust suppression sleeve 52, and the sealing piston 522 The dust suppression sleeve 52 is divided into a water replenishment area and a drainage area. The water replenishment area is located above the sealing piston 5221. A sealing cavity 5222 is provided in the sealing piston 5221. The sealing cavity 5222 is an open structure at both ends. A sealing block 5223 is slidably provided in the sealing cavity 5222. The sealing block 5223 is sealed with the sealing cavity 5222. A sealing spring 5224 connected to the sealing block 5223 is provided in the sealing cavity 5222. A sealing rubber ring 5227 is provided on the sealing piston 5221, and a sealing rubber ring 5228 is provided on the sealing block 5223.

[0038] The working principle of the sealing mechanism 522: when the sealing piston 5221 slides downward along the dust reduction sleeve 52, due to the resistance of the sealing spring 5224 and the liquid, the sealing block 5223 maintains the seal on the sealing piston 5221. At this time, the sealing piston 5221 drives the upper rotating mechanism 525 and the lower rotating mechanism 523 to move downward synchronously, and the upper rotating mechanism 525 drives the water sealing mechanism 526 to open. At this time, the water in the water storage tank 51 enters the water replenishment area in the dust reduction sleeve 52, so as to replenish the water in the dust reduction sleeve 52. At the same time, the lower rotating mechanism 523 drives the liquid spraying mechanism 524 to open, and the water in the drainage area in the dust reduction sleeve 52 enters the liquid spraying mechanism 524 and is pressurized and sprayed out under the push of the sealing piston 5221. After the sprayed water contacts the dust in the ambient wind, the dust falls under the action of gravity, thereby achieving the dust reduction effect, extending the service life of the ventilation filter 12, and ensuring the ventilation efficiency of the ventilation filter 12.

[0039] Combined with Figure 2 , Attachment Figure 3 , Attachment Figure 4 , Attachment Figure 5 With attached Figure 8 As shown, a sealing magnetic ring 5225 is provided on the sealing piston 5221, and the linkage mechanism includes a limit bracket 54 arranged on the ventilation filter 12, and the limit bracket 54 includes a limit support rod 541 connected to the ventilation filter 12, and a limit slide groove 542 is provided on the limit support rod 541, and the limit slide groove 542 is a V-shaped structure. A sliding bracket 53 is slidably sleeved on the dust reduction sleeve 52, and the sliding bracket 53 includes a sliding magnetic ring 531 slidably connected to the dust reduction sleeve 52, and the sliding magnetic ring 531 has opposite magnetic properties to the sealing magnetic ring 5225, and a sliding block 532 slidably matched with the limit slide groove 542 is provided on the sliding magnetic ring 531, and a reset spring 527 connected to the sliding magnetic ring 531 is sleeved on the dust reduction sleeve 52, and a positioning slide groove 521 slidably matched with the sliding magnetic ring 531 is provided on the dust reduction sleeve 52.

[0040] Working principle of the linkage mechanism: During the rotation of the dust suppression sleeve 52, the dust suppression sleeve 52 drives the reset spring 527 to move synchronously with the sliding bracket 53. When the sliding block 532 enters the limiting slide groove 542 of the V-shaped structure, the limiting slide groove 542 guides the sliding block 532. When the sliding block 532 slides upward along the limiting slide groove 542, the sliding block 532 drives the sliding magnetic ring 531 to move upward synchronously through the sliding bracket 53. The sliding bracket 53 squeezes the reset spring 527, and the reset spring 52 7 is forced to shrink. Since the magnetic properties of the sliding magnetic ring 531 and the sealing magnetic ring 5225 are opposite, the sealing magnetic ring 5225 moves with the sliding magnetic ring 531 and synchronously drives the sealing piston 5221 to move upward. Afterwards, when the sliding block 532 slides downward along the limiting slide groove 542, the sliding block 532 drives the sliding magnetic ring 531 to move downward synchronously through the sliding bracket 53, and the reset spring 527 is gradually reset. The sealing magnetic ring 5225 moves with the sliding magnetic ring 531 and synchronously drives the sealing piston 5221 to move downward.

[0041] Combined with Figure 5 , Attachment Figure 6 , Attachment Figure 7 , Attachment Fig. 9 With attached Fig.10 As shown, the lower rotating mechanism 523 includes a positioning bracket 5231 arranged in the dust suppression sleeve 52, the positioning bracket 5231 is provided with a liquid through hole 52311, the positioning bracket 5231 is slidably provided with a sliding sleeve 5232 connected to the sealing piston 5221, the lower end of the sealing piston 5221 is provided with a sealing bracket 5226 connected to the sliding sleeve 5232, the positioning bracket 5231 is rotatably provided with a driving column 5233, and the driving column 5233 is provided with a driving slide groove 52 331, the driving slide groove 52331 includes a longitudinal groove and an oblique groove which are interconnected, and a step is provided at the connection between the longitudinal groove and the oblique groove. A telescopic joint 52321 is provided in the sliding sleeve 5232, and a connecting slider 52322 which slides with the driving slide groove 52331 is provided on the telescopic joint 52321. A sliding spring 52323 connected to the connecting slider 52322 is sleeved on the telescopic joint 52321, and a driving spring 5234 connected to the sliding sleeve 5232 is provided on the driving rotating column 5233.

[0042] The working principle of the lower rotating mechanism 523: when the sealing piston 5221 moves downward, the sealing piston 5221 drives the sliding sleeve 5232 to move downward synchronously through the sealing bracket 5226, and the sliding sleeve 5232 squeezes the driving spring 5234, and the driving spring 5234 contracts under force. During this process, the telescopic joint 52321 drives the connecting slider 52322 to slide downward synchronously. Due to the existence of the sliding spring 52323, the connecting slider 52322 always maintains a sliding contact with the driving slide groove 52331. When the connecting slider 52322 slides along the oblique groove of the driving slide groove 52331, the connecting slider 52322 drives the driving rotating column through the driving slide groove 52331 5233 applies a rotational torque, and then the connecting slider 52322 enters the longitudinal groove of the driving slide groove 52331. Since the inclined groove and the longitudinal groove of the driving slide groove 52331 have a step at the connection, the connecting slider 52322 will not reversely enter the inclined groove of the driving slide groove 52331. When the sealing piston 5221 moves upward, the sealing piston 5221 drives the sliding sleeve 5232 to move upward synchronously through the sealing bracket 5226, and the driving spring 5234 drives the sliding sleeve 5232 to reset, and the connecting slider 52322 slides along the longitudinal groove of the driving slide groove 52331. Then, the connecting slider 52322 enters the inclined groove of the driving slide groove 52331.

[0043] Combined with Figure 5 , Attachment Figure 6 , Attachment Fig. 9 With attached Fig.11 As shown, the liquid spray mechanism 524 includes a liquid spray storage bin 5241 connected to the dust suppression sleeve 52, the liquid spray storage bin 5241 is connected to a liquid spray head 5243, a supporting slide column 5244 is provided in the liquid spray storage bin 5241, the supporting slide column 5244 is a regular polygonal structure, a supporting slide plate 5242 which is slidingly provided on the supporting slide column 5244 and is sealed with the liquid spray storage bin 5241, a supporting spring 5245 connected to the supporting slide plate 5242 is provided on the liquid spray storage bin 5241, a mating ratchet 5246 is provided on the supporting slide plate 5242, and an end face ratchet 5235 which meshes with the mating ratchet 5246 is provided on the driving rotating column 5233.

[0044] The working principle of the liquid spraying mechanism 524: Since the supporting slide plate 5242 and the supporting slide column 5244 are slidably matched, and the supporting slide column 5244 is a regular polygonal structure, the supporting slide plate 5242 can only slide back and forth along the axial direction of the supporting slide column 5244, and will not rotate. Therefore, when the driving column 5233 rotates, the driving column 5233 drives the end face ratchet 5235 to rotate synchronously. Since the matching ratchet 5246 is engaged with the end face ratchet 5235, with the cooperation of the supporting spring 5245, the supporting slide plate 5242 continuously reciprocates up and down along the supporting slide column 5244, thereby facilitating the water in the dust suppression sleeve 52 to enter the liquid spraying storage bin 5241. The water entering the liquid spraying storage bin 5241 is sprayed out through the liquid spraying head 5243 to contact the dust. The dust attached to the water falls under the action of gravity to avoid contact with the ventilation filter 12, thereby extending the service life of the ventilation filter 12.

[0045] Combined with Figure 5 , Attachment Figure 6 , Attachment Fig. 9 With attached Fig.12 As shown, the water sealing mechanism 526 includes a water sealing grille 5261 arranged at the upper end of the dust suppression sleeve 52, and a water sealing slide column 5264 is provided on the water sealing grille 5261. The water sealing slide column 5264 is a regular polygonal structure, and a water sealing block 5262 is slidably connected to the water sealing slide column 5264 and is sealed with the dust suppression sleeve 52. The water sealing block 5262 is provided with a water sealing ratchet 5263 that meshes with the end face ratchet 5235, and a water sealing spring 5265 connected to the water sealing block 5262 is sleeved on the water sealing slide column 5264.

[0046] Working principle of the water sealing mechanism 526: Since the water sealing slide column 5264 and the water sealing block 5262 are slidably matched, and the water sealing slide column 5264 is a regular polygonal structure, the water sealing block 5262 can only slide back and forth along the axial direction of the water sealing slide column 5264 and will not rotate. Therefore, when the driving column 5233 rotates, the driving rotation drives the end face ratchet 5235 to rotate synchronously. Since the water sealing ratchet 5263 is meshed with the end face ratchet 5235, with the cooperation of the water sealing spring 5265, the water sealing block 5262 continuously reciprocates up and down along the water sealing slide column 5264, thereby conveniently replenishing water into the dust suppression sleeve 52.

[0047] Combined with Figure 2 , Attachment Figure 3 , Attachment Figure 4 As shown, the driving mechanism 4 includes a driving sleeve 41 arranged on the water storage tank 51, and a plurality of driving blades 43 are equidistantly arranged around the driving sleeve 41. A cleaning plate 42 is provided on the driving sleeve 41, and a cleaning brush 421 cooperating with the ventilation filter 12 is provided on the cleaning plate 42.

[0048] The working principle of the driving mechanism 4 is as follows: the ambient wind flows through the driving blade 43 to drive the driving blade 43 to rotate, and the driving blade 43 drives the water storage tank 51 and the cleaning plate 42 to rotate synchronously, and the cleaning plate 42 drives the cleaning brush 421 to clean the ventilation filter 12 through the brushing action, thereby further avoiding the blockage of the ventilation filter 12.

[0049] When the present invention is implemented and used, the ventilation fan 11 is turned on, and the ambient wind flows out through the air inlet 21, the air inlet tube 2, the silencer 31, the silencer inclined plate 32, the guide plate 33, the ventilation filter 12, the guide plate 131 and the guide device 13 in sequence, so as to realize the ventilation operation of the mine. During this process, the driving blade 43 drives the water storage tank 51 and the dust reduction sleeve 52 to rotate synchronously, and the dust reduction sleeve 52 continuously sprays the water in the water storage tank 51 through the spray head 5243 to perform dust reduction operation. Furthermore, the cleaning plate 42 drives the cleaning brush 421 to clean the ventilation filter 12 to avoid blockage of the ventilation filter 12 and ensure efficient ventilation.

[0050] The present invention and its embodiments are described above, which is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it and do not deviate from the purpose of the invention, they can creatively design a structure and embodiment similar to the technical solution, which should fall within the protection scope of the present invention.

Claims

1. A low-noise mine ventilation device, comprising a ventilation duct (1), wherein a ventilation fan (11) and a ventilation filter (12) are arranged in the ventilation duct (1), characterized in that: A dust reduction mechanism (5) for reducing dust content is rotatably provided on the air inlet side of the ventilation filter (12), the dust reduction mechanism (5) comprising a water storage bin (51) rotatably provided on the air inlet side of the ventilation filter (12), a dust reduction sleeve (52) being connected to the water storage bin (51), and a water sealing mechanism (526), ​​an upper rotating mechanism (525), a sealing mechanism (522), a lower rotating mechanism (523) and a liquid spraying mechanism (524) being sequentially provided in the dust reduction sleeve (52); The sealing mechanism (522) is slidably connected to the dust suppression sleeve (52); the upper and lower ends of the sealing mechanism (522) are respectively connected to an upper rotating mechanism (525) and a lower rotating mechanism (523); the upper rotating mechanism (525) and the lower rotating mechanism (523) have the same structure; the upper rotating mechanism (525) cooperates with the water sealing mechanism (526) to allow liquid to enter and exit the dust suppression sleeve (52); the lower rotating mechanism (523) cooperates with the liquid spraying mechanism (524) to allow liquid to be sprayed out by the liquid spraying mechanism (524); The ventilation filter (12) is provided with a driving mechanism (4) for driving the water storage bin (51) to rotate and a linkage mechanism for driving the sealing mechanism (522) to slide back and forth along the dust suppression sleeve (52).

2. A low-noise mine ventilation device according to claim 1, characterized in that: The sealing mechanism (522) comprises a sealing piston (5221) slidably arranged in the dust suppression sleeve (52); a sealing chamber (5222) is arranged in the sealing piston (5221); the sealing chamber (5222) is a structure with two ends open; a sealing block (5223) is slidably arranged in the sealing chamber (5222); and a sealing spring (5224) connected to the sealing block (5223) is arranged in the sealing chamber (5222).

3. A low-noise mine ventilation device according to claim 2, characterized in that: The sealing piston (5221) is provided with a sealing magnetic ring (5225), the linkage mechanism comprises a limit bracket (54) arranged on the ventilation filter (12), the limit bracket (54) comprises a limit support rod (541) connected to the ventilation filter (12), the limit support rod (541) is provided with a limit slide groove (542), the limit slide groove (542) is a V-shaped structure, the dust removal sleeve (52) is slidably sleeved with a sliding bracket (53), the sliding bracket (53) comprises a sliding magnetic ring (531) slidably connected to the dust removal sleeve (52), the sliding magnetic ring (531) and the sealing magnetic ring (5225) have opposite magnetic properties, the sliding magnetic ring (531) is provided with a sliding block (532) slidably matched with the limit slide groove (542), and the dust removal sleeve (52) is sleeved with a reset spring (527) connected to the sliding magnetic ring (531).

4. A low-noise mine ventilation device according to claim 2, characterized in that: The lower rotating mechanism (523) includes a positioning bracket (5231) arranged in the dust suppression sleeve (52), a sliding sleeve (5232) connected to the sealing piston (5221) is slidably provided on the positioning bracket (5231), a driving column (5233) is rotatably provided on the positioning bracket (5231), a driving slide groove (52331) is provided on the driving column (5233), and the driving slide groove (52331) includes a longitudinal groove and an inclined groove that are interconnected, a telescopic joint (52321) is provided in the sliding sleeve (52321), a connecting slider (52322) slidably matched with the driving slide groove (52331) is provided on the telescopic joint (52321), a sliding spring (52323) connected to the connecting slider (52322) is sleeved on the telescopic joint (52321), and a driving spring (5234) connected to the sliding sleeve (5232) is provided on the driving column (5233).

5. A low-noise mine ventilation device according to claim 4, characterized in that: The liquid spraying mechanism (524) comprises a liquid spraying storage bin (5241) connected to the dust suppression sleeve (52), a liquid spraying head (5243) being connected to the liquid spraying storage bin (5241), a supporting slide column (5244) being provided in the liquid spraying storage bin (5241), a supporting slide plate (5242) sealingly matched with the liquid spraying storage bin (5241) being slidably provided on the supporting slide column (5244), a supporting spring (5245) connected to the supporting slide plate (5242) being provided on the liquid spraying storage bin (5241), a matching ratchet (5246) being provided on the supporting slide plate (5242), and an end face ratchet (5235) meshing with the matching ratchet (5246) being provided on the driving rotating column (5233).

6. A low-noise mine ventilation device according to claim 1, characterized in that: The water sealing mechanism (526) comprises a water sealing grille (5261) arranged at the upper end of the dust suppression sleeve (52); a water sealing slide column (5264) is provided on the water sealing grille (5261); a water sealing block (5262) ​​which is slidably connected to the water sealing slide column (5264) and is sealed with the dust suppression sleeve (52); a water sealing ratchet (5263) which meshes with the end face ratchet (5235) is provided on the water sealing block (5262); and a water sealing spring (5265) which is connected to the water sealing block (5262) ​​is sleeved on the water sealing slide column (5264).

7. A low-noise mine ventilation device according to claim 1, characterized in that: An output shaft (111) is provided at the output end of the ventilation fan (11), and a plurality of groups of ventilation blades (112) are equidistantly arranged around the output shaft (111). The ventilation blades (112) include support blades (1121) and wing angle blades (1122), and guide saw teeth (11221) are provided on the air inlet side of the wing angle blades (1122).

8. A low-noise mine ventilation device according to claim 1, characterized in that: The driving mechanism (4) comprises a driving sleeve (41) arranged on the water storage bin (51), a plurality of driving blades (43) are equidistantly arranged around the driving sleeve (41), a cleaning plate (42) is arranged on the driving sleeve (41), and a cleaning brush (421) cooperating with the ventilation filter (12) is arranged on the cleaning plate (42).

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