Efficient mine ventilation device

Abstract

The invention discloses an efficient mine ventilation device, and relates to the technical field of mine environment protection equipment, the efficient mine ventilation device comprises a box body and a purification assembly, the end part of the box body is provided with an exhaust fan, and the purification assembly is arranged in the box body; the purification assembly comprises a first spring seat, a filter plate, a partition plate, a rotary vane pump, a liquid suction pipe, a spraying pipe, a flow guide plate, a first purification frame and a second purification frame, the first spring seat is fixed in one end of the box body, the end of the first spring seat is connected with the filter plate, and the filter plate is in sliding connection with the box body. When the exhaust fan works, negative pressure is formed in the box body to suck air in an ore channel, the filter plate filters dust particles in airflow, the rotary vane pump sucks an external alkaline solution through the liquid suction pipe, and then the alkaline solution is sprayed out from the spraying pipe, so that acid gas such as hydrogen sulfide in the air is sucked, and the dust in the ore channel is removed. The baffle plate is used for prolonging the stroke of the airflow, so that the airflow is fully contacted with reaction liquid.

Description

Technical Field

[0001] The present invention relates to the technical field of mine environmental protection equipment, and particularly to an efficient mine ventilation device. Background Technique

[0002] With the acceleration of the industrialization process, the development and utilization of mineral resources play an important role in the national economy. However, the decline in air quality caused by dust and harmful gases generated during mine exploitation, such as methane, carbon dioxide, sulfides, etc., not only poses a threat to the health and operation safety of miners, but also is discharged into the atmospheric environment with the air current, exacerbating the atmospheric environmental pollution around the mining area, causing long-term threats to the ecological system and the health of residents, and being unfavorable for protecting the atmospheric environment.

[0003] For example, the invention with the publication number CN117883924B discloses a dust removal and ventilation device for mine environmental protection. When the dust removal mechanism of this invention performs dust removal work, the arc-shaped fan blades at the air inlet rotate around the rotating shaft, knocking and vibrating the filter plate, achieving the effect of cleaning the dust on the filter plate, reducing the blockage of the filter plate during the filtering process and the situation of reducing the dust suction effect. However, in the actual use process of this type of ventilation device, it can only remove dust impurities in the air and cannot remove harmful gases in the air, resulting in a general problem in the mine environmental protection effect. Summary of the Invention

[0004] The purpose of the present invention is to provide an efficient mine ventilation device to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] An efficient mine ventilation device includes a box body and a purification component. A suction fan is arranged at the end of the box body, and the purification component is arranged inside the box body. The purification component includes a first spring seat, a filter plate, a partition plate, a vane pump, a liquid suction pipe, a spray pipe, a diversion plate, a first purification frame, and a second purification frame. A first spring seat is fixed inside one end of the box body, and a filter plate is connected to the end of the first spring seat, and the filter plate is slidably connected to the box body. A partition plate is arranged inside the box body, and a vane pump is arranged at the top of the box body. One end of the vane pump is connected to a liquid suction pipe, and the other end of the vane pump is provided with a spray pipe. A diversion plate is arranged on one side of the partition plate. A first purification frame is slidably connected inside the other end of the box body, and a second purification frame is also slidably connected inside the other end of the first purification frame.

[0007] Further, the diversion plate is wavy, and the diversion plates are equidistantly and staggeredly distributed inside the box body.

[0008] Further, a core-changing assembly is provided at one end of the rotary vane pump. The core-changing assembly includes a reduction gearbox, a crankshaft, a synchronous sleeve, and a synchronous shaft. The output shaft of the rotary vane pump is connected to the reduction gearbox, and the output shaft of the reduction gearbox is connected to the crankshaft. The lower end of the crankshaft is sleeved with the synchronous sleeve, and the synchronous shaft is slidably connected to the inner part of the lower end of the synchronous sleeve.

[0009] Further, the synchronous shaft is rotatably connected to the box body, and the upper and lower ends of the synchronous shaft are hexagonal prismatic.

[0010] Further, the core-changing assembly further includes a dividing device, a driving gear, a driven gear, and a double-tooth shaft. The bottom of the synchronous shaft is connected to the dividing device, and the output shaft of the dividing device is connected to the driving gear. One side of the driving gear is engaged with the driven gear, and one side of the driven gear is engaged with the double-tooth shaft, and the double-tooth shaft is rotatably connected to the box body.

[0011] Further, the core-changing assembly further includes a transmission shaft, a bevel gear set, a rotating shaft, and a feeding plate. The transmission shaft is fixed inside the driven gear, and the upper and lower ends of the transmission shaft are slidably connected to the bevel gear set. One side of the bevel gear set is connected to the rotating shaft, and the feeding plate is fixed to the outside of the rotating shaft.

[0012] Further, the core-changing assembly further includes a baffle, a storage box, and a recycling box. The end of the feeding plate is slidably connected to the baffle. The storage box is slidably connected to the outside of the upper end of the first purification frame, and the recycling box is slidably connected to the outside of the lower end of the first purification frame.

[0013] Further, a jitter assembly is connected to the middle of the crankshaft. The jitter assembly includes a connecting rod, a sliding rod, and a sliding sleeve. The middle of the crankshaft is rotatably connected to the connecting rod, and the end of the connecting rod is rotatably connected to the sliding rod. The outside of the end of the sliding rod is slidably connected to the sliding sleeve, and the sliding sleeve is fixed to the box body.

[0014] Further, the jitter assembly further includes a top block, a pulley frame, and a second spring seat. The top block is arranged at the top of the sliding rod, and a pulley frame is arranged at the upper end of the top block. The middle bottom surface of the pulley frame is connected to the second spring seat, and the pulley frame is fixed to the first purification frame and the second purification frame respectively.

[0015] Further, a limiting ring is rotatably connected to the outside of the synchronous sleeve, a handle is fixed to one side of the limiting ring, and a limiting block is slidably connected to the end of the handle.

[0016] The high-efficiency mine ventilation device provided by the present invention has the following beneficial effects:

[0017] 1. The present invention can extend the travel of the air flow through the partition plate, enabling it to come into full contact with the reaction liquid and improving the purification effect. Subsequently, the guide plate can be used to direct the air flow again. At the same time, due to the decrease in the temperature of the guide plate, it is easy for some water mist to condense into large water droplets and drip from its V-shaped confluence part, reducing the humidity in the air flow. The subsequent air flow will pass through the first purification frame and the second purification frame. The alumina desiccant particles inside the first purification frame will absorb the moisture in the air flow again, while the activated carbon particles in the second purification frame can adsorb the harmful gases in the air flow. Therefore, when the air is discharged to the outside, the pollution of dust and harmful gases is greatly reduced, making it more environmentally friendly and conducive to protecting the atmospheric environment.

[0018] 2. When the rotating shaft stops rotating, the present invention can seal the upper and lower ends of the first purification frame and the second purification frame through the feeding plate, and adsorb the gas when the gas enters the interior through the filter holes on the side. Subsequently, when the synchronous shaft rotates one full circle, the indexer drives the driving gear to rotate one-quarter of a circle, thereby using the feeding plate located in the upper part to convey the granular filler falling from the storage box into the interior of the first purification frame and the second purification frame. At the same time, the feeding plate located in the lower part will, during the rotation process, discharge some of the particles inside into the recycling box. Therefore, during actual use, it can automatically replace the adsorbed and saturated granular filler without frequent shutdown for maintenance, enabling the equipment to be used continuously and more efficiently.

[0019] 3. When the crankshaft rotates, the present invention can cause the first purification frames and the second purification frames on both sides to vibrate, so that during the adsorption and purification process, the air flow can circulate more smoothly and come into more sufficient contact with the adsorption particles due to the vibration. Moreover, during the material replacement process, the vibration can be used to improve the fluidity of the material particles and prevent the occurrence of material jamming.

[0020] 4. When it is necessary to load the storage box or discharge the adsorbed particles in the recycling box, simply lift the handle and move it into the upper limit block, and the synchronous sleeve can be separated from the synchronous shaft through the limit ring, and the transmission will not occur. Therefore, the material in the storage box can be replenished when the baffle is in the closed state, and there is no need to stop the machine, which is conducive to ensuring the continuous operation state of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic three-dimensional overall structure diagram of the high-efficiency mine ventilation device of the present invention;

[0022] Figure 2 It is a schematic diagram of the internal structure of the box body of the high-efficiency mine ventilation device of the present invention;

[0023] Figure 3 It is a schematic three-dimensional structure diagram of the purification component part of the high-efficiency mine ventilation device of the present invention;

[0024] Figure 4 Schematic perspective view of the filter element replacement component part of the efficient mine ventilation device of the present invention;

[0025] Figure 5 Schematic perspective view of the bevel gear set of the efficient mine ventilation device of the present invention;

[0026] Figure 6 Schematic perspective view of the shaking component of the efficient mine ventilation device of the present invention;

[0027] Figure 7 Schematic cross-sectional view of the synchronizing sleeve of the efficient mine ventilation device of the present invention.

[0028] In the figure: 1, box body; 2, exhaust fan; 3, purification component; 301, first spring seat; 302, filter plate; 303, partition board; 304, rotary vane pump; 305, liquid suction pipe; 306, spray pipe; 307, flow guiding plate; 308, first purification frame; 309, second purification frame; 4, filter element replacement component; 401, reduction box; 402, crankshaft; 403, synchronizing sleeve; 404, synchronizing shaft; 405, indexer; 406, driving gear; 407, driven gear; 408, double-tooth shaft; 409, transmission shaft; 410, bevel gear set; 411, rotating shaft; 412, feeding plate; 413, baffle; 414, storage box; 415, recycling box; 5, shaking component; 501, connecting rod; 502, sliding rod; 503, sliding sleeve; 504, top block; 505, pulley frame; 506, second spring seat; 6, limiting ring; 7, handle; 8, limiting block. Detailed implementation manners

[0029] The following will disclose multiple implementation manners of the present invention with the aid of drawings. For the sake of clarity, many physical details will be described together in the following narrative. However, it should be understood that these physical details are not used to limit the present invention. That is to say, in some implementation manners of the present invention, these physical details are not necessary. In addition, for the purpose of simplifying the drawings, some conventional structures and components will be shown in a simple schematic manner in the drawings.

[0030] In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the premise that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0031] Please refer to Figures 1 to 3 , the efficient mine ventilation device provided by the present invention includes a box body 1 and a purification component 3. An exhaust fan 2 is arranged at the end of the box body 1, and the purification component 3 is arranged inside the box body 1.

[0032] The purification component 3 includes a first spring seat 301, a filter plate 302, a partition plate 303, a rotary vane pump 304, a liquid suction pipe 305, a spray pipe 306, a guide plate 307, a first purification frame 308 and a second purification frame 309. A first spring seat 301 is fixed inside one end of the box body 1, and a filter plate 302 is connected to the end of the first spring seat 301, and the filter plate 302 is slidably connected to the box body 1. A partition plate 303 is arranged inside the box body 1, and a rotary vane pump 304 is arranged on the top of the box body 1. One end of the rotary vane pump 304 is connected to a liquid suction pipe 305, and the other end of the rotary vane pump 304 is provided with a spray pipe 306. A guide plate 307 is arranged on one side of the partition plate 303. The guide plate 307 is wavy, and the guide plate 307 is equally spaced and staggered inside the box body 1. A first purification frame 308 is slidably connected inside the other end of the box body 1, and a second purification frame 309 is also slidably connected inside the other end of the first purification frame 308.

[0033] The specific operation is as follows. When the exhaust fan 2 works, a negative pressure state will be formed inside the box body 1. At this time, since the air inlet of the box body 1 is connected to the mine tunnel, the air in the mine tunnel will be sucked. At this time, the filter plate 302 will filter out the dust particles in the air flow, and the air flow will also impact the filter plate 302. Therefore, the filter plate 302 can be made to vibrate through the first spring seat 301 so as to shake off some impurity particles to the lower part. Then, the rotary vane pump 304 will suck the external alkaline solution through the liquid suction pipe 305 and spray it out from the spray pipe 306, thereby absorbing acidic gases such as hydrogen sulfide in the air. And the partition plate 303 is used to extend the travel of the air flow so that it can fully contact with the reaction liquid, further improving the purification effect. Subsequently, the guide plate 307 can be used to guide the air flow again. At the same time, since the temperature of the guide plate 307 decreases, it is easy for some water mist to condense into large water droplets and drip from its V-shaped confluence part, reducing the humidity in the air flow. And when the gas enters the inside of the first purification frame 308 and the second purification frame 309 through the filter holes on the side, the alumina desiccant particles inside the first purification frame 308 will absorb the moisture in the air flow again, and the activated carbon particles inside the second purification frame 309 can adsorb the harmful gases in the air flow. Therefore, when the air is discharged to the outside, the pollution of dust and harmful gases is greatly reduced, which is more environmentally friendly.

[0034] Please refer to Figures 2 to 5 One end of the rotary vane pump 304 is provided with a core-changing component 4. The core-changing component 4 includes a reduction gearbox 401, a crankshaft 402, a synchronous sleeve 403 and a synchronous shaft 404. The output shaft of the rotary vane pump 304 is connected to a reduction gearbox 401, and the output shaft of the reduction gearbox 401 is connected to a crankshaft 402. A synchronous sleeve 403 is sleeved outside the lower end of the crankshaft 402, and a synchronous shaft 404 is slidably connected inside the lower end of the synchronous sleeve 403. The synchronous shaft 404 is rotatably connected to the box body 1, and the upper and lower ends of the synchronous shaft 404 are hexagonal prisms.

[0035] The core-changing assembly 4 further includes a divider 405, a driving gear 406, a driven gear 407, and a double-tooth shaft 408. The bottom of the synchronizing shaft 404 is connected to the divider 405, and the output shaft of the divider 405 is connected to the driving gear 406. One side of the driving gear 406 meshes with the driven gear 407, and one side of the driven gear 407 meshes with the double-tooth shaft 408. Moreover, the double-tooth shaft 408 is rotatably connected to the box body 1.

[0036] The core-changing assembly 4 further includes a transmission shaft 409, a bevel gear set 410, a rotating shaft 411, and a feeding plate 412. The transmission shaft 409 is fixed inside the driven gear 407, and the upper and lower ends of the transmission shaft 409 are slidably connected to the bevel gear set 410. One side of the bevel gear set 410 is connected to the rotating shaft 411, and the feeding plate 412 is fixed to the outside of the rotating shaft 411. The core-changing assembly 4 further includes a baffle 413, a storage tank 414, and a recycling box 415. The end of the feeding plate 412 is slidably connected to the baffle 413. The storage tank 414 is slidably connected to the outside of the upper end of the first purification frame 308, and the recycling box 415 is slidably connected to the outside of the lower end of the first purification frame 308.

[0037] The specific operation is as follows. The crankshaft 402 drives the divider 405 to work through the synchronizing sleeve 403 and the synchronizing shaft 404, causing the driving gear 406 to intermittently rotate a quarter of a turn. The driving gear 406 then controls the rotation of the rotating shaft 411 through the driven gear 407, the double-tooth shaft 408, the transmission shaft 409, and the bevel gear set 410. At this time, since the storage tank 414 has a double-chamber structure and two types of adsorption particles are placed respectively, the feeding plate 412 located in the upper part can be used to convey the granular filler falling from the storage tank 414 into the first purification frame 308 and the second purification frame 309. At the same time, the feeding plate 412 located in the lower part will discharge some of the particles inside into the recycling box 415 during the rotation process. Therefore, during actual use, the adsorption-saturated granular filler can be automatically replaced without frequent shutdown maintenance, enabling the equipment to be continuously used more efficiently. After that, when the rotating shaft 411 stops rotating, the feeding plate 412 closes the upper and lower ends of the first purification frame 308 and the second purification frame 309. At this time, when the gas enters from the side filter holes into the interior, the gas can be subjected to adsorption treatment.

[0038] Please refer to Figures 6 to 7, a shaking assembly 5 is connected to the middle part of the crankshaft 402. The shaking assembly 5 includes a connecting rod 501 rotatably connected to the middle part of the crankshaft 402. The end of the connecting rod 501 is rotatably connected with a sliding rod 502. A sliding sleeve 503 is slidably connected to the outer side of the end of the sliding rod 502, and the sliding sleeve 503 is fixedly connected to the box body 1. A top block 504 is arranged at the top of the sliding rod 502, and a pulley frame 505 is arranged at the upper end of the top block 504. A second spring seat 506 is connected to the bottom surface of the middle part of the pulley frame 505, and the pulley frame 505 is fixedly connected to the first purification frame 308 and the second purification frame 309 respectively. A limiting ring 6 is rotatably connected to the outer side of the synchronous sleeve 403, a handle 7 is fixed to one side of the limiting ring 6, and a limiting block 8 is slidably connected to the end of the handle 7.

[0039] With the above settings, when the crankshaft 402 moves, it can also reciprocally push and pull the sliding rod 502 in the sliding sleeve 503 through the connecting rod 501, so that the top block 504 drives the pulley frame 505 to vibrate under the action of the second spring seat 506. Therefore, the first purification frame 308 and the second purification frame 309 on both sides can be shaken, so that during the adsorption and purification process, the airflow can be made to flow more smoothly by shaking, and the contact with the adsorbed particles is more sufficient. And during the material changing process, the fluidity of the material particles can be improved by shaking to prevent the occurrence of material jamming.

[0040] And during the shaking process, since the L-shaped plates in the bevel gear set 410 are respectively rotatably connected to the upper and lower bevel gears, when driving the bevel gear set 410 to move up and down, it will not affect the normal transmission and avoid motion interference. When it is necessary to feed the storage bin 414 or discharge the adsorbed particles in the recovery bin 415, only need to lift the handle 7 and move it into the upper limiting block 8, and the synchronous sleeve 403 can be separated from the synchronous shaft 404 through the limiting ring 6, and the transmission will not occur. Therefore, the material in the storage bin 414 can be supplemented when the baffle 413 is in the closed state.

[0041] In summary, when using the above-mentioned mine ventilation device designed by the present invention, first connect the air inlet of the box body 1 to the mine roadway, start the exhaust fan 2 to work, make the inside of the box body 1 in a negative pressure state, suck the air in the mine roadway, the filter plate 302 will filter out the dust particles in the airflow, and the airflow impacts the filter plate 302. Therefore, the filter plate 302 can be shaken through the first spring seat 301 to shake off some impurity particles to the lower part. Secondly, the rotary vane pump 304 sucks the external alkaline solution through the liquid suction pipe 305 and then sprays it out from the spray pipe 306 to absorb the acidic gases such as hydrogen sulfide in the air. And the partition plate 303 is used to extend the travel of the airflow to make it fully contact with the reaction liquid. Subsequently, the guide plate 307 can be used to guide the airflow again, and make some water mist condense into large particle water droplets and drip from its V-shaped confluence part to reduce the humidity in the airflow.

[0042] Next, the feeding plate 412 seals the upper and lower ends of the first purification frame 308 and the second purification frame 309. When gas enters the interiors of the first purification frame 308 and the second purification frame 309 through the filter holes on the side, the alumina desiccant particles inside the first purification frame 308 absorb the moisture in the air flow again, while the activated carbon particles in the second purification frame 309 can adsorb the harmful gases in the air flow.

[0043] Then, the rotary vane pump 304 drives the crankshaft 402 at the bottom of the reduction box 401 to rotate through the output shaft of its motor, and can drive the indexing device 405 to work through the synchronizing sleeve 403 and the synchronizing shaft 404, causing the driving gear 406 to intermittently rotate a quarter of a turn. At the same time, the driving gear 406 controls the rotation of the rotating shaft 411 through the driven gear 407, the double-tooth shaft 408, the transmission shaft 409, and the bevel gear set 410. At this time, since the inside of the storage box 414 is a double-chamber, the above two kinds of adsorption particles are respectively placed, and the feeding plate 412 located at the upper part can convey the granular filler falling inside the storage box 414 to the interiors of the first purification frame 308 and the second purification frame 309. At the same time, the feeding plate 412 located at the lower part will, during the rotation process, discharge some of the particles inside to the recovery box 415, automatically replacing the adsorption-saturated granular filler. After that, when the rotating shaft 411 stops rotating, the feeding plate 412 seals the upper and lower ends of the first purification frame 308 and the second purification frame 309.

[0044] Finally, during the rotation of the crankshaft 402, the connecting rod 501 reciprocally pushes and pulls the sliding rod 502 inside the sliding sleeve 503, causing the top block 504 to drive the pulley frame 505 to vibrate under the action of the second spring seat 506, enabling the first purification frame 308 and the second purification frame 309 on both sides to vibrate. Thus, during the adsorption and purification process, the vibration makes the air flow more smooth, and during the material replacement process, the vibration can improve the fluidity of the material particles. When it is necessary to replenish the material in the storage box 414 or discharge the adsorbed particles in the recovery box 415, only need to lift the handle 7 and move it into the upper limit block 8, and the synchronizing sleeve 403 can be separated from the synchronizing shaft 404 through the limit ring 6, and the transmission will not occur. Therefore, the material in the storage box 414 can be replenished when the baffle 413 is in the closed state.

[0045] The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles of the present invention and its practical applications, and to enable those of ordinary skill in the art to understand the present invention and thus design various embodiments with various modifications suitable for specific purposes.

Claims

1. A highly efficient mine ventilation device, characterized in that: The invention comprises a housing (1) and a purification component (3), wherein an exhaust fan (2) is arranged at the end of the housing (1), and the purification component (3) is arranged inside the housing (1). The purification component (3) comprises a first spring seat (301), a filter plate (302), a partition plate (303), a rotary vane pump (304), a liquid suction pipe (305), a spray pipe (306), a guide plate (307), a first purification frame (308) and a second purification frame (309). The first spring seat (301) is fixed inside one end of the housing (1), and the end of the first spring seat (301) is connected to the filter plate (302). 2), and the filter plate (302) is slidably connected to the box body (1), a partition (303) is arranged inside the box body (1), and a rotary vane pump (304) is arranged on the top of the box body (1), one end of the rotary vane pump (304) is connected to a liquid suction pipe (305), and the other end of the rotary vane pump (304) is provided with a spray pipe (306), a guide plate (307) is arranged on one side of the partition (303), a first purification frame (308) is slidably connected inside the other end of the box body (1), and a second purification frame (309) is also slidably connected inside the other end of the first purification frame (308).

2. The high-efficiency mine ventilation device according to claim 1 is characterized in that: The guide plates (307) are wavy in shape, and the guide plates (307) are equidistantly staggered with respect to the interior of the box body (1).

3. The high-efficiency mine ventilation device according to claim 1 is characterized in that: A core changing assembly (4) is provided at one end of the rotary vane pump (304), and the core changing assembly (4) comprises a reduction gearbox (401), a crankshaft (402), a synchronous sleeve (403) and a synchronous shaft (404); the output shaft of the rotary vane pump (304) is connected to the reduction gearbox (401), and the output shaft of the reduction gearbox (401) is connected to the crankshaft (402); the outer side of the lower end of the crankshaft (402) is sleeved with the synchronous sleeve (403), and the lower end of the synchronous sleeve (403) is slidably connected to the synchronous shaft (404).

4. The high-efficiency mine ventilation device according to claim 3 is characterized in that: The synchronization shaft (404) is rotationally connected to the box body (1), and the upper and lower ends of the synchronization shaft (404) are in the shape of hexagonal prisms.

5. The high-efficiency mine ventilation device according to claim 3 is characterized in that: The core changing assembly (4) further comprises an indexer (405), a driving gear (406), a driven gear (407) and a double-toothed shaft (408); the bottom of the synchronous shaft (404) is connected to the indexer (405), and the output shaft of the indexer (405) is connected to the driving gear (406); one side of the driving gear (406) is meshed with the driven gear (407), and one side of the driven gear (407) is meshed with the double-toothed shaft (408), and the double-toothed shaft (408) is rotatably connected to the box body (1).

6. The high-efficiency mine ventilation device according to claim 5, characterized in that: The core changing assembly (4) further comprises a transmission shaft (409), a bevel gear set (410), a rotating shaft (411) and a feeding plate (412); the transmission shaft (409) is fixed inside the driven gear (407), and the upper and lower ends of the transmission shaft (409) are slidably connected to the bevel gear set (410); one side of the bevel gear set (410) is connected to the rotating shaft (411), and the feeding plate (412) is fixed to the outer side of the rotating shaft (411).

7. The high-efficiency mine ventilation device according to claim 6 is characterized in that: The core replacement assembly (4) also includes a baffle (413), a material storage box (414) and a recovery box (415); the end of the feed plate (412) is slidably connected to the baffle (413); the outer side of the upper end of the first purification frame (308) is slidably connected to the material storage box (414); and the outer side of the lower end of the first purification frame (308) is slidably connected to the recovery box (415).

8. The high-efficiency mine ventilation device according to claim 3 is characterized in that: The middle part of the crankshaft (402) is connected to a shaking assembly (5), and the shaking assembly (5) includes a connecting rod (501), a sliding rod (502) and a sliding sleeve (503). The middle part of the crankshaft (402) is rotatably connected to the connecting rod (501), and the end of the connecting rod (501) is rotatably connected to the sliding rod (502). The outer side of the end of the sliding rod (502) is slidably connected to the sliding sleeve (503), and the sliding sleeve (503) is fixedly connected to the casing (1).

9. The high-efficiency mine ventilation device according to claim 8, characterized in that: The shaking assembly (5) also includes a top block (504), a pulley frame (505) and a second spring seat (506). The top block (504) is placed on the top of the sliding rod (502), and the upper end of the top block (504) is provided with a pulley frame (505). The middle bottom surface of the pulley frame (505) is connected to the second spring seat (506), and the pulley frame (505) is fixedly connected to the first purification frame (308) and the second purification frame (309) respectively.

10. The high-efficiency mine ventilation device according to claim 3, characterized in that: The outer side of the synchronous sleeve (403) is rotatably connected to a limit ring (6), and a handle (7) is fixed to one side of the limit ring (6), and the end of the handle (7) is slidably connected to a limit block (8).

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