Low noise mine ventilation equipment

Abstract

The present application relates to mine ventilation equipment technical field, disclose a kind of low-noise mine ventilation equipment, including ventilation air duct, ventilation fan and ventilation filter screen, dust reduction mechanism is rotatably arranged in the dust reduction mechanism of ventilation filter screen air inlet side, the dust reduction mechanism includes the water storage bin rotatably arranged in the air inlet side of ventilation filter screen, dust reduction sleeve pipe is connected in water storage bin, dust reduction sleeve pipe is sequentially provided with water sealing mechanism, upper rotating mechanism, sealing mechanism, lower rotating mechanism and liquid injection mechanism, driving mechanism for driving water storage bin rotation and linkage mechanism for driving sealing mechanism reciprocating sliding along dust reduction sleeve pipe are provided on ventilation filter screen, water in water storage bin is sprayed out by sealing mechanism and liquid injection mechanism cooperation to realize dust reduction operation, avoid the blockage of ventilation filter screen, avoid the lack of air in mine and harmful gas cannot be discharged, guarantee the safety of operating personnel, reduce the noise caused by air power, optimize the working environment of operating personnel.

Description

Technical Field

[0001] The present 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 a timely manner.

[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, the existing mine ventilation equipment lacks dust reduction means, which easily causes the filter to be blocked, requiring operators to frequently maintain the filter, increasing the workload of operators and reducing work 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 resulting in insufficient air in the mine and the inability to discharge harmful gases in time, affecting the safety of operators. In addition, the existing ventilation equipment is noisy when in operation, which further worsens the working environment of 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 equipment.

[0005] In order 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 provided in the ventilation duct, and a dust reduction mechanism for reducing dust content is provided 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, and a dust reduction sleeve 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 provided in the dust reduction sleeve. The sealing mechanism is slidably connected to the dust reduction sleeve, and 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 allow liquid to enter and exit the dust reduction sleeve, and the lower rotating mechanism cooperates with the liquid spraying mechanism to allow liquid to be sprayed out 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 sleeve.

[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, the sealing piston is provided with a sealing magnetic ring, the linkage mechanism includes a limiting support arranged on the ventilation filter screen, the limiting support includes a limiting support rod connected with the ventilation filter screen, the limiting support rod is provided with a limiting sliding groove, the limiting sliding groove is in V-shaped structure, the dust fall sleeve is slidably sleeved with a sliding support, the sliding support includes a sliding magnetic ring slidably connected with the dust fall sleeve, the sliding magnetic ring is magnetically opposite to the sealing magnetic ring, the sliding magnetic ring is provided with a sliding block slidably matched with the limiting sliding groove, and the dust fall sleeve is sleeved with a return spring connected with the sliding magnetic ring.

[0008] As an improvement, the lower rotating mechanism includes a positioning support arranged in the dust fall sleeve, a sliding sleeve connected with the sealing piston is slidably arranged on the positioning support, a driving rotating column is rotatably arranged on the positioning support, the driving rotating column is provided with a driving sliding groove, the driving sliding groove includes a longitudinal groove and an inclined groove which are communicated with each other, an extension joint is arranged in the sliding sleeve, the extension joint is provided with a connecting sliding block slidably matched with the driving sliding groove, the extension joint is sleeved with a sliding spring connected with the connecting sliding block, and the driving rotating column is provided with a driving spring connected with the sliding sleeve.

[0009] As an improvement, the liquid spraying mechanism includes a liquid spraying storage communicated with the dust fall sleeve, the liquid spraying storage is provided with a liquid spraying head communicated therewith, the liquid spraying storage is provided with a supporting sliding column, a supporting sliding plate in sealing cooperation with the liquid spraying storage is slidably arranged on the supporting sliding column, the liquid spraying storage is provided with a supporting spring connected with the supporting sliding plate, the supporting sliding plate is provided with a matched ratchet wheel, and the driving rotating column is provided with an end surface ratchet wheel engaged with the matched ratchet wheel.

[0010] As an improvement, the water sealing mechanism includes a water sealing grid arranged on the upper end of the dust fall sleeve, the water sealing grid is provided with a water sealing sliding column, a water sealing block in sealing cooperation with the dust fall sleeve is slidably connected with the water sealing sliding column, the water sealing block is provided with a water sealing ratchet wheel engaged with the end surface ratchet wheel, and the water sealing sliding column is sleeved with a water sealing spring connected with the water sealing block.

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

[0012] As an improvement, the driving mechanism includes a driving sleeve arranged on the water storage, a plurality of groups of driving paddles are equidistantly arranged around the driving sleeve, the driving sleeve is provided with a cleaning plate, and the cleaning plate is provided with a cleaning brush matched with the ventilation filter screen.

[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 circular motion, and the sealing mechanism of the water storage bin slides back and forth along the dust suppression sleeve during the rotation process. 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 the arrangement of the supporting 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 along the dust suppression sleeve periodically. The sliding magnetic ring drives the sealing magnetic ring with opposite magnetic properties to reciprocate, conveniently realizing the drainage and replenishment operations of the dust suppression sleeve without the need for sensors or other electronic components, improving operational stability, reducing maintenance frequency, and alleviating 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. The sliding sleeve drives the telescopic joint, the sliding spring and the connecting slider to move synchronously. Furthermore, the reciprocating connecting slider remains slidably connected to the driving slide groove 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 sprays the water in the dust suppression sleeve to conveniently realize the dust suppression operation. The driving column coordinated with the water sealing mechanism drives the water sealing mechanism to open during the rotation process, and replenishes the water in the water storage tank into the dust suppression sleeve, ensuring that there is sufficient water in the dust suppression sleeve and ensuring the efficient dust suppression 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, making it convenient to replenish water into the spray storage tank so that the spray head can obtain sufficient water source. The end ratchet matched with the water sealing ratchet drives the water sealing block to slide back and forth 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 The present invention is an exploded view of the cooperation between a driving mechanism and a dust suppression mechanism of a low-noise mine ventilation device.

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

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

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

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

[0025] Figure 9 The diagram is an exploded view of the lower rotating mechanism of a low-noise mine ventilation device according to the present invention.

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

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

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

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

[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 serration; 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 ramp; 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 ring; 523, lower rotating mechanism; 5231, positioning bracket; 52311, liquid hole; 5232, sliding sleeve; 52321, expansion 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 tank; 5242, supporting slide; 5243, liquid spraying head; 5 244. Support slide; 5245. Support spring; 5246. Coordinating 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; 5265. Water sealing spring; 527. Return spring; 53. Sliding bracket; 531. Sliding magnetic ring; 532. Sliding block; 54. Limit bracket; 541. Limit support rod; 542. Limit slide groove. DETAILED DESCRIPTION

[0031] The present invention will be described in further detail below with reference to the accompanying drawings.

[0032] Combined with attachment Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 , Attachment Figure 5 , Attachment Figure 6 With attached Figure 13As shown, a low-noise mine ventilation equipment includes a ventilation duct 1, an air inlet duct 2 is provided on the air inlet side of the ventilation duct 1, an air outlet duct 16 is provided on the air outlet side of the ventilation duct 1, mounting legs 14 are provided on the outer sides of the ventilation duct 1 and the air outlet duct 16, a deflector 13 is provided on the air outlet duct 16, an air inlet hole 21 is surrounded by the air inlet duct 2, a silencer mechanism 3 is provided in the air inlet duct 2, the silencer mechanism 3 includes a silencer 31 arranged in the air inlet duct 2, a silencer inclined plate 32 is provided at one end of the silencer 31, a plurality of silencer inclined plates 32 are equidistantly arranged along the circumferential direction of the silencer 31, and the silencer inclined plates 32 are all inclinedly arranged, a guide plate 33 is provided at the 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, and a cavity is provided on the air outlet duct 16, and a sound insulation pad 34 is provided 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 ventilation filter 12 is provided with a dust reduction mechanism 5 that reduces the dust content on the air inlet side. The dust reduction mechanism 5 includes a water storage bin 51 that is rotatably arranged on the air inlet side of the ventilation filter 12. The ventilation duct 1 is provided with a water tank 15 that is connected to the water storage bin 51 through a pipe. A rotating sealing joint is provided at the connection between the pipe and the water storage tank 15. The water storage bin 51 will not drive the pipe 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. The dust reduction sleeve 52 is provided with 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 in sequence. The ventilation filter 12 is provided with a driving mechanism 4 that drives the water storage bin 51 to rotate and a linkage mechanism that drives 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 then 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 before coming into contact with the ventilation filter 12. The filtered ambient air passes through the guide plate 131 and the deflector 13 in sequence before flowing 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 traditional axial air inlet to lateral air inlet, changes the way the ambient air enters, and reduces 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, 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 attachment Figure 1 , Attachment Figure 2 , Attachment Figure 3 With attached Figure 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, which 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 during rotation continuously falling off into vortices, thereby optimizing the working environment of the operators.

[0037] Combined with attachment Figure 5 , Attachment Figure 6 , Attachment Figure 7 With attached Figure 8 As shown, the sealing mechanism 522 is connected to the dust suppression sleeve 52 in a sliding manner. 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 sealing mechanism 522 includes a sealing piston 5221 slidably arranged in the dust suppression sleeve 52. 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 chamber 5222 is provided in the sealing piston 5221. The sealing chamber 5222 is open at both ends. A sealing block 5223 is slidably provided in the sealing chamber 5222. The sealing block 5223 is in sealing engagement with the sealing chamber 5222. A sealing spring 5224 connected to the sealing block 5223 is provided in the sealing chamber 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 is as follows: when the sealing piston 5221 slides downward along the dust suppression sleeve 52, the sealing block 5223 maintains the seal on the sealing piston 5221 due to the resistance of the sealing spring 5224 and the liquid. 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 suppression sleeve 52, thereby replenishing the water in the dust suppression 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 suppression 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 attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 , Attachment Figure 5 With attached Figure 8 As shown, the sealing piston 5221 is provided with a sealing magnetic ring 5225, 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 the limit support rod 541 is provided with a limit slide 542, and the limit slide 542 is a V-shaped structure. The dust reduction sleeve 52 is slidably sleeved with a sliding bracket 53, 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. The sliding magnetic ring 531 is provided with a sliding block 532 that slidably cooperates with the limit slide 542, and the dust reduction sleeve 52 is sleeved with a reset spring 527 connected to the sliding magnetic ring 531, and the dust reduction sleeve 52 is provided with a positioning slide 521 that slidably cooperates with the sliding magnetic ring 531.

[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 and the sliding bracket 53 to move synchronously. 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 contract. Since the sliding magnetic ring 531 and the sealing magnetic ring 5225 have opposite magnetic properties, 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 sliding groove 542, the sliding block 532 drives the sliding magnetic ring 531 to move downward synchronously through the sliding bracket 53. The reset spring 527 gradually resets, and 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 attachment Figure 5 , Attachment Figure 6 , Attachment Figure 7 , Attachment Figure 9 With attached Figure 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 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 52 331, the driving slide 52331 includes a longitudinal groove and an oblique groove that 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 that slides with the driving slide 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.

[0042] The working principle of the lower rotating mechanism 523 is as follows: when the sealing piston 5221 moves downward, the sealing piston 5221 drives the sliding sleeve 5232 to move downward synchronously through the sealing support 5226, the sliding sleeve 5232 extrudes the driving spring 5234, the driving spring 5234 is contracted under stress, in the process, the telescopic joint 52321 drives the connecting sliding block 52322 to slide downward synchronously, because of the existence of the sliding spring 52323, the connecting sliding block 52322 always keeps sliding abutment with the driving sliding groove 52331, when the connecting sliding block 52322 slides along the inclined groove of the driving sliding groove 52331, the connecting sliding block 52322 applies a rotating torque to the driving rotating column 5233 through the driving sliding groove 52331, then, the connecting sliding block 52322 enters the longitudinal groove of the driving sliding groove 52331, because the connection between the inclined groove and the longitudinal groove of the driving sliding groove 52331 has a step, the connecting sliding block 52322 will not enter the inclined groove of the driving sliding groove 52331 reversely, and when the sealing piston 5221 moves upward, the sealing piston 5221 drives the sliding sleeve 5232 to move upward synchronously through the sealing support 5226, the driving spring 5234 drives the sliding sleeve 5232 to reset, the connecting sliding block 52322 slides along the longitudinal groove of the driving sliding groove 52331, then, the connecting sliding block 52322 enters the inclined groove of the driving sliding groove 52331.

[0043] The accompanying drawings are incorporated into and constitute a part of this specification. Figure 5 , the accompanying drawings Figure 6 , the accompanying drawings Figure 9 and the accompanying drawings Figure 11 As shown in the accompanying drawings, the liquid spraying mechanism 524 comprises a liquid spraying storage 5241 in communication with the dust falling sleeve 52, a liquid spraying head 5243 is arranged on the liquid spraying storage 5241 in communication, a supporting sliding column 5244 is arranged in the liquid spraying storage 5241, the supporting sliding column 5244 is a regular polygon structure, a supporting sliding plate 5242 in sealing cooperation with the liquid spraying storage 5241 is arranged on the supporting sliding column 5244 in sliding, a supporting spring 5245 connected with the supporting sliding plate 5242 is arranged on the liquid spraying storage 5241, a cooperation ratchet wheel 5246 is arranged on the supporting sliding plate 5242, and an end surface ratchet wheel 5235 engaged with the cooperation ratchet wheel 5246 is arranged 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 tank 5241. The water entering the liquid spraying tank 5241 is sprayed out through the liquid spraying head 5243 and contacts the dust. The dust attached to the water falls under the action of gravity, avoiding contact with the ventilation filter 12, thereby extending the service life of the ventilation filter 12.

[0045] Combined with attachment Figure 5 , Attachment Figure 6 , Attachment Figure 9 With attached Figure 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. A water sealing block 5262 is slidably connected to the water sealing slide column 5264 and is sealed with the dust suppression sleeve 52. A water sealing ratchet 5263 engaged with the end face ratchet 5235 is provided on the water sealing block 5262, and a water sealing spring 5265 connected to the water sealing block 5262 is sleeved on the water sealing slide column 5264.

[0046] The 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 engaged 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 attachment 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 that cooperates with the ventilation filter 12 is provided on the cleaning plate 42.

[0048] The working principle of the driving mechanism 4 is as follows: ambient wind flows through the driving paddle 43 to drive the driving paddle 43 to rotate, the driving paddle 43 drives the water storage bin 51 and the cleaning plate 42 to rotate synchronously, the cleaning plate 42 drives the cleaning brush 421 to clean the ventilation filter screen 12 through the sweeping action, and further, the clogging of the ventilation filter screen 12 is avoided.

[0049] In the specific implementation and use of the present application, the ventilation fan 11 is opened, ambient wind flows through the air inlet hole 21, the air inlet duct 2, the sound reduction cylinder 31, the sound reduction inclined plate 32, the guide plate 33, the ventilation filter screen 12, the flow guide plate 131 and the flow guide 13 in sequence and then flows out, and the ventilation operation of the mine is realized. In this process, the driving paddle 43 drives the water storage bin 51 and the dust fall sleeve 52 to rotate synchronously, the dust fall sleeve 52 continuously sprays water in the water storage bin 51 out through the liquid spraying head 5243 to perform the dust fall operation, further, the cleaning plate 42 drives the cleaning brush 421 to clean the ventilation filter screen 12, the clogging of the ventilation filter screen 12 is avoided, and the efficient ventilation is ensured.

[0050] The above describes the present application and its implementation, which is not limited, and the drawings only show one of the embodiments of the present application, and the actual structure is not limited thereto. In summary, if the ordinary skilled in the art is inspired, without departing from the purpose of the present application, without creating a similar structure and examples of the technical solution, which should belong to the protection scope of the present application.

Claims

1. A low-noise mine ventilation device, comprising a ventilation duct (1), wherein a ventilation fan (11) and a ventilation filter (12) are provided in the ventilation duct (1), an air inlet duct (2) is provided on the air inlet side of the ventilation duct (1), and an air outlet duct (16) is provided on the air outlet side, and an air inlet hole (21) is provided around the air inlet duct (2), characterized in that: A silencer mechanism (3) is provided in the air inlet duct (2), the silencer mechanism (3) comprising a silencer (31) provided in the air inlet duct (2), a silencer inclined plate (32) provided at one end of the silencer (31), a plurality of silencer inclined plates (32) being provided in equal intervals along the circumferential direction of the silencer (31), the silencer inclined plates (32) being all inclined, a guide plate (33) being provided at one end of the air inlet duct (2) away from the air inlet hole (21), the guide plate (33) being provided in a cross-shaped structure, a cavity being provided on the air outlet duct (16), and a sound insulation pad (34) being provided in the cavity; 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 support blades (1121) and wing angle blades (1122). The air inlet side of the wing angle blades (1122) is provided with guide saw teeth (11221). 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), 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) having 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 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. The low-noise mine ventilation equipment 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 cavity (5222) is provided in the sealing piston (5221); the sealing cavity (5222) is a structure with both ends open; a sealing block (5223) is slidably arranged in the sealing cavity (5222); and a sealing spring (5224) connected to the sealing block (5223) is provided in the sealing cavity (5222).

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

4. The low-noise mine ventilation equipment 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 (52331) is provided on the driving column (5233), and the driving slide (52331) includes a longitudinal groove and an inclined groove that are connected to each other, a telescopic joint (52321) is provided in the sliding sleeve (52321), a connecting slider (52322) that slidably cooperates with the driving slide (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. The low-noise mine ventilation equipment 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) is connected to the liquid spraying storage bin (5241); a supporting slide column (5244) is provided in the liquid spraying storage bin (5241); a supporting slide plate (5242) that is slidably provided on the supporting slide column (5244) and is in sealing engagement with the liquid spraying storage bin (5241); a supporting spring (5245) connected to the supporting slide plate (5242) is provided on the liquid spraying storage bin (5241); a matching ratchet (5246) is provided on the supporting slide plate (5242); and an end face ratchet (5235) that meshes with the matching ratchet (5246) is provided on the driving rotating column (5233).

6. The low-noise mine ventilation equipment according to claim 5, 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) ​​that seals with the dust suppression sleeve (52) is slidably connected to the water sealing slide column (5264); a water sealing ratchet (5263) that meshes with the end face ratchet (5235) is provided on the water sealing block (5262); and a water sealing spring (5265) that is connected to the water sealing block (5262) ​​is sleeved on the water sealing slide column (5264).

7. The low-noise mine ventilation equipment 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 groups of driving blades (43) being equidistantly arranged around the driving sleeve (41), a cleaning plate (42) being provided on the driving sleeve (41), and a cleaning brush (421) cooperating with the ventilation filter (12) being provided on the cleaning plate (42).

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