A mine-used dust-removing ventilation device

Abstract

The present application relates to a kind of mine underground dust removal ventilation device, belong to mine dust removal ventilation device technical field, comprising: for sucking dust airflow booster module, the air outlet of booster module is equipped with for whipping dust airflow centrifugal mixing module, the bottom outlet of centrifugal mixing module is connected with liquid collection module, and liquid collection module is equipped with spray tower;Ventilation module is connected on the exhaust port of liquid collection module, the airflow generated by booster module can be introduced into ventilation module by the exhaust port of liquid collection module, and ventilation module is driven to realize ventilation;Centrifugal mixing module fully mixes and whips dust airflow and dust-settling liquid, improves the fusion degree of dust and dust-settling liquid, to improve dust capture rate and dust removal cleanliness;After dust-settling treatment airflow, can be discharged by ventilation module, and ventilation module is driven by the airflow to introduce external fresh airflow, ensure that roadway has good ventilation exhaust effect, also improves the energy efficiency of device.

Description

Technical Field

[0001] This invention relates to a dust removal and ventilation device for underground mines, belonging to the technical field of dust removal and ventilation devices for mines. Background Technology

[0002] Mines, especially coal mines and metal and non-metal mines, generate large amounts of dust during production. This dust primarily originates from drilling, blasting, tunneling, coal mining, loading, transportation, and roof support processes. Its main components are rock dust, coal dust, and other fine mineral particles, posing a significant hazard to mine safety and occupational health. Long-term inhalation of industrial dust can lead to irreversible occupational diseases such as silicosis and coal worker's pneumoconiosis, severely damaging workers' health. Furthermore, high concentrations of dust in the work environment can reduce equipment visibility, impair operators' visual judgment, and easily cause mechanical accidents.

[0003] Currently, dust collection devices are commonly used to reduce dust hazards, but existing dust collection devices still have the following problems:

[0004] 1. After the dust-laden airflow is drawn into the device, water mist is sprayed to combine with the dust particles, and the mixture of dust and water droplets is collected, thereby achieving dust suppression. However, due to the high airflow velocity inside the device, the dust and water mist cannot fully mix, resulting in some dust not being captured and being discharged to the outside with the airflow, affecting the overall dust removal effect.

[0005] 2. The airflow discharged from the dust removal device still has a considerable amount of kinetic energy, which is currently not being effectively utilized, resulting in energy waste. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a dust removal and ventilation device for mines, which improves the fusion efficiency of dust and dust-suppressing liquid to ensure a higher dust collection rate and dust removal cleanliness; at the same time, it can recover and utilize the kinetic energy of the exhaust airflow to enhance the ventilation and exhaust effect of the underground working space.

[0007] The present invention provides a dust removal and ventilation device for underground mining, comprising: a pressurizing module for absorbing dust airflow, a centrifugal mixing module for agitating the dust airflow on the air outlet of the pressurizing module, a liquid collection module connected to the bottom outlet of the centrifugal mixing module, and a spray tower on the liquid collection module.

[0008] The liquid collection module is equipped with an exhaust port, and a ventilation module is connected to the exhaust port of the liquid collection module. The airflow generated by the pressurization module can be introduced into the ventilation module through the exhaust port of the liquid collection module and drive the ventilation module to achieve ventilation.

[0009] The dust-suppressing liquid in the liquid collection module can be sprayed onto the centrifugal mixing module through a spray tower, and then mixed with the dust airflow by the centrifugal mixing module.

[0010] The booster module is also equipped with a drive unit, which can coaxially drive the booster module and the centrifugal mixing module to move.

[0011] The booster module includes: an air inlet duct, an air intake impeller that can be driven by a drive component inside the air inlet duct, a support frame on the air inlet duct for supporting the drive component, a flow rectifier grille on the air outlet of the air inlet duct, and the air outlet of the air inlet duct is connected to the air inlet of the centrifugal mixing module.

[0012] Furthermore, the centrifugal mixing module includes a mixing shroud connected to the air outlet of the air inlet duct;

[0013] The mixing hood contains a bidirectional mixing module.

[0014] The bidirectional hybrid module includes: a support housing connected to the rectifier grille, and a reversing gear set disposed inside the support housing, the reversing gear set being driven by a drive unit; the reversing gear set is provided with output ends with opposite rotation directions, and each output end of the reversing gear set is provided with an agitator.

[0015] The agitator includes: an adapter frame connected to the output end of the reversing gear set, a rotating cage on the adapter frame, and several blades evenly distributed on the rotating cage.

[0016] The air inlet of the mixing hood is equipped with a support plate, which has several ventilation holes; the support shell can be connected to the support plate.

[0017] Furthermore, the liquid collection module includes: a primary liquid collection tray connected to the outlet of the mixing hood, and a secondary liquid collection tray connected below the primary liquid collection tray; the secondary liquid collection tray can collect the dust-suppressing liquid overflowing from the primary liquid collection tray.

[0018] The primary collection tray is internally divided into a primary sedimentation tank and an overflow tank; the primary sedimentation tank is located on the outer ring of the overflow tank; a boss is provided in the center of the primary collection tray, and a hollowed-out transition platform is provided on the boss; a first exhaust pipe is provided through the boss, and the first exhaust pipe can extend into the secondary collection tray; several cleaning windows are provided on the outer wall of the primary collection tray.

[0019] The secondary collection tray is equipped with a secondary sedimentation tank and a filter tank. A second exhaust pipe that communicates with the outside is located at the center of the secondary collection tray; the first exhaust pipe and the second exhaust pipe are connected.

[0020] The secondary sedimentation tank is equipped with several baffles inside, and the bottom of the baffles has flow holes; the side of the secondary sedimentation tank is equipped with a reflux port.

[0021] Furthermore, the ventilation module includes: an air-water separator, the air inlet of which is connected to the second exhaust pipe via a drain pipe; a turbocharger connected to the air outlet of the air-water separator; and the drain outlet of the air-water separator connected to the return port via a pipe.

[0022] Furthermore, the spray tower includes a tower cover mounted on the transfer platform, the tower cover being able to extend into the inner ring of the rotating cage.

[0023] The tower shroud is equipped with several spray pipes inside, and the tower shroud is also equipped with nozzles connected to the spray pipes; the liquid inlet of the spray pipe is connected to a dredging pump through a pipeline, which can pump the dust-suppressing liquid in the filter tank into the spray pipe.

[0024] Furthermore, a drive shaft is coaxially connected to the output end of the drive unit.

[0025] The drive shaft passes through the rectifier grille.

[0026] The intake impeller and the input end of the reversing gear set are both connected to the drive shaft.

[0027] Furthermore, protrusions are provided on the inner wall of the air inlet duct.

[0028] The fairing includes: a grating plate, on which a fairing is provided.

[0029] The beneficial effects of this invention compared to the prior art are:

[0030] The centrifugal mixing module thoroughly mixes and agitates the dust-laden airflow with the dust-suppressing liquid, improving the degree of fusion between the dust and the dust-suppressing liquid, thereby increasing the dust collection rate and dust removal cleanliness. The airflow that has undergone dust suppression can be discharged through the ventilation module, which is driven by the airflow to introduce fresh airflow from the outside, ensuring that the roadway has a good ventilation and exhaust effect, while also improving the energy efficiency of the device. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of a dust removal and ventilation device for underground mining according to the present invention;

[0032] Figure 2 This is a partial cross-sectional view of a dust removal and ventilation device for underground mining according to the present invention;

[0033] Figure 3 yes Figure 2 A magnified schematic diagram of the local structure at point A;

[0034] Figure 4 This is a schematic diagram of the centrifugal mixing module of a mine underground dust removal and ventilation device according to the present invention;

[0035] Figure 5 This is a longitudinal sectional view of a dust removal and ventilation device for underground mining according to the present invention;

[0036] Figure 6 yes Figure 5 A magnified view of the structure at point B in the middle;

[0037] Figure 7 This is a schematic diagram of the ventilation module structure of a mine underground dust removal and ventilation device according to the present invention;

[0038] Figure 8 This is a schematic diagram of the split structure of a dust removal and ventilation device for underground mining according to the present invention.

[0039] In the picture:

[0040] 1. Boosting module; 102. Intake impeller; 103. Air inlet duct; 1031. Protrusion; 104. Rectifier grille; 1041. Grille plate; 1042. Fairing;

[0041] 2. Centrifugal mixing module; 201. Support housing; 202. Reversing gear set; 2021. Driving wheel; 2022. Reversing wheel; 2023. Driven wheel; 2024. Adapter shaft;

[0042] 203. Adapter frame; 204. Rotary cage; 2041. Blade; 205. Mixing hood; 2051. Support plate; 2052. Ventilation hole;

[0043] 3. Liquid collection module; 301. Primary liquid collection tray; 302. Overflow trough; 303. Primary sedimentation tank; 304. Transfer platform; 305. Boss; 306. First exhaust pipe; 307. Cleaning window; 308. Secondary liquid collection tray; 309. Secondary sedimentation tank; 310. Filter tank; 311. Second exhaust pipe; 312. Baffle plate; 313. Flow hole; 314. Return port;

[0044] 4. Ventilation module; 401. Drainage pipe; 402. Gas-water separator; 403. Turbocharger; 4031. Exhaust gas inlet; 4032. Air intake port; 4033. Exhaust port; 4034. Compressor turbine; 4035. Intake turbine;

[0045] 5. Spray tower; 501. Tower cover; 502. Spray pipe; 503. Spray nozzle; 504. Diversion pump;

[0046] 6. Driving components; 601. Drive shaft. Detailed Implementation

[0047] like Figures 1-8 As shown, this embodiment is achieved through the following technical solution: a pressurizing module 1 for absorbing dust airflow, a centrifugal mixing module 2 for stirring the dust airflow is provided on the air outlet of the pressurizing module 1, a liquid collection module 3 is connected to the bottom outlet of the centrifugal mixing module 2, and a spray tower 5 is provided on the liquid collection module 3.

[0048] The liquid collection module 3 is equipped with an exhaust port, and a ventilation module 4 is connected to the exhaust port of the liquid collection module 3. The airflow generated by the pressurization module 1 can be introduced into the ventilation module 4 through the exhaust port of the liquid collection module 3 and drive the ventilation module 4 to achieve ventilation.

[0049] The dust-suppressing liquid in the collection module 3 can be sprayed onto the centrifugal mixing module 2 through the spray tower 5, and then mixed with the dust airflow by the agitation of the centrifugal mixing module 2. In this embodiment, the type of dust-suppressing liquid is water.

[0050] The booster module 1 is also equipped with a drive component 6, which can coaxially drive the booster module 1 and the centrifugal mixing module 2 to move.

[0051] The booster module 1 includes: an air inlet duct 103, an air intake impeller 102 that can be driven by a drive component 6 is provided inside the air inlet duct 103, a support frame 101 for supporting the drive component 6 is provided on the air inlet duct 103, a flow rectifier grille 104 is provided on the air outlet of the air inlet duct 103, and the air outlet of the air inlet duct 103 is connected to the air inlet of the centrifugal mixing module 2.

[0052] Specifically, the centrifugal mixing module 2 includes a mixing shroud 205 connected to the air outlet of the air inlet duct 103.

[0053] The mixing cover 205 has a bidirectional mixing module inside.

[0054] The bidirectional hybrid module includes: a support housing 201 connected to the rectifier grille 104, and a reversing gear set 202 disposed inside the support housing 201. The reversing gear set 202 can be driven by a drive member 6. The reversing gear set 202 has output ends with opposite rotation directions, and each output end of the reversing gear set 202 is equipped with an agitator. In this embodiment, the reversing gear set 202 has two output ends, each connected to an agitator, and the two agitators can rotate in opposite directions.

[0055] In this embodiment, the reversing gear set 202 includes: a driving gear 2021, a reversing gear 2022, and a driven gear 2023 rotatably connected to the support housing 201; a connecting shaft 2024 is coaxially connected to the driving gear 2021, and both ends of the connecting shaft 2024 are respectively connected to the transmission shaft 601 and the connecting frame 203. The connecting shaft 2024 can pass through the driven gear 2023, such as... Figure 4 As shown; the adapter shaft 2024 can drive the drive wheel 2021 and the adapter frame 203 to rotate.

[0056] The driving wheel 2021 drives the driven wheel 2023 to rotate in the opposite direction via the reversing wheel 2022. Another set of adapters 203 is connected to the driven wheel 2023. The driven wheel 2023 and the adapter shaft 2024 are the two output ends of the reversing gear set 202.

[0057] The driving gear 2021, the reversing gear 2022, and the driven gear 2023 are all bevel gears.

[0058] The agitator includes: an adapter frame 203 connected to the output end of the reversing gear set 202, a rotating cage 204 on the adapter frame 203, and a number of blades 2041 evenly distributed on the rotating cage 204.

[0059] A support plate 2051 is provided on the air inlet of the mixing hood 205, and the support plate 2051 has several vent holes 2052; the airflow generated by the booster module 1 can be discharged into the mixing hood 205 through the vent holes 2052; the support housing 201 can be connected to the support plate 2051, such as Figure 8 As shown.

[0060] When the agitator rotates, the airflow carrying dust and the dust-suppressing liquid sprayed from the spray tower 5 are thoroughly agitated and mixed. At the same time, under the action of centrifugal force, the droplets of the mixture of dust and dust-suppressing liquid are thrown onto the inner wall of the mixing hood 205 by the agitator. Then, under the action of gravity, they gather along the inner wall of the mixing hood 205 and flow into the primary sedimentation tank 303. The mixture of dust and dust-suppressing liquid undergoes a first sedimentation and clarification in the primary sedimentation tank 303. Under the action of its own weight, most of the dust settles to the bottom of the primary sedimentation tank 303, while the dust-suppressing liquid with less dust content in the upper layer overflows into the overflow tank 302. The bottom of the overflow tank 302 is provided with several drain holes, through which the clarified dust-suppressing liquid flows into the secondary sedimentation tank 309 for secondary sedimentation. The baffle 312 divides the secondary sedimentation tank 309 into several spaces to reduce the fluctuation of the dust-suppressing liquid and prevent the dust at the bottom from settling and churning.

[0061] After secondary settling, the dust-settling liquid is further clarified. The clarified dust-settling liquid on the upper layer of the secondary sedimentation tank 309 flows into the filter tank 310 for subsequent extraction by the spray tower 5.

[0062] Specifically, the liquid collection module 3 includes: a primary liquid collection tray 301 connected to the outlet of the mixing hood 205, and a secondary liquid collection tray 308 connected below the primary liquid collection tray 301; the secondary liquid collection tray 308 can collect the dust-suppressing liquid overflowing from the primary liquid collection tray 301.

[0063] The primary collection tray 301 is internally divided into a primary sedimentation tank 303 and an overflow tank 302; the primary sedimentation tank 303 is located on the outer ring of the overflow tank 302; a boss 305 is provided at the center of the primary collection tray 301, and a hollowed-out transition platform 304 is provided on the boss 305; a first exhaust pipe 306 is inserted through the boss 305, and the first exhaust pipe 306 can extend into the secondary collection tray 308; several cleaning windows 307 are provided on the outer wall of the primary collection tray 301. Dust sediment in the primary sedimentation tank 303 can be cleaned through the cleaning windows 307.

[0064] The secondary collection tray 308 is equipped with a secondary sedimentation tank 309 and a filter tank 310. The center of the secondary collection tray 308 is provided with a second exhaust pipe 311 that communicates with the outside. The first exhaust pipe 306 and the second exhaust pipe 311 are connected.

[0065] The secondary sedimentation tank 309 has several baffles 312 inside, and the bottom of the baffles 312 has flow holes 313; the side of the secondary sedimentation tank 309 has a reflux port 314.

[0066] Specifically, the ventilation module 4 includes: an air-water separator 402, the air inlet of which is connected to the second exhaust pipe 311 via a drain pipe 401; a turbocharger 403 is connected to the air outlet of the air-water separator 402; and the drain outlet of the air-water separator 402 is connected to the return port 314 via a pipe.

[0067] The intake impeller 102 draws airflow into the device, which is under positive pressure. When the agitator rotates, heavier dust particles and dust-settling liquid droplets are thrown to the outer layer under centrifugal force. Dust is separated to the outer layer under centrifugal force, and the cleaner airflow is separated to the center of the agitator and discharged into the ventilation module 4 through the first exhaust pipe 306 and the second exhaust pipe 311 under positive pressure.

[0068] When the airflow inside the device is discharged, it will be mixed with dust-suppressing liquid and the airflow has a high humidity. The air-water separator 402 separates the dust-suppressing liquid and gas in the airflow and sends the dust-suppressing liquid back to the liquid collection module 3 through the return port 314 to reduce the loss of dust-suppressing liquid and facilitate its recycling. The separated gas is directly discharged into the turbocharger 403 through the exhaust gas inlet 4031.

[0069] In this embodiment, the turbocharger 403 adopts a common automotive turbocharger; specifically, the turbocharger 403 includes: a compressor turbine 4034 and an intake turbine 4035 coaxially connected to the turbine housing. The turbine housing is provided with an exhaust gas inlet 4031, an intake port 4032, and an exhaust port 4033. The intake port 4032 is connected to the ventilation duct in the mine roadway through a pipeline. Fresh air absorbed from the ventilation duct by the intake port 4032 can be discharged through the exhaust port 4033. Workers can use the pipeline to introduce fresh air to a designated location.

[0070] The compressor turbine 4034 receives the exhaust gas discharged from the gas-water separator 402 and drives the intake turbine 4035 to rotate on the same shaft. The intake turbine 4035 can draw in the airflow from the intake port 4032 and discharge it from the exhaust port 4033.

[0071] Specifically, the spray tower 5 includes a tower cover 501 installed on the transfer platform 304, which can extend into the inner ring of the rotating cage 204.

[0072] The tower cover 501 is equipped with several nozzles 502 inside, and the tower cover 501 is also equipped with nozzles 503 connected to the nozzles 502; the liquid inlet of the nozzles 502 is connected to a dredging pump 504 through a pipeline, which can pump the dust-suppressing liquid in the filter tank 310 into the nozzles 502.

[0073] Specifically, a drive shaft 601 is coaxially connected to the output end of the drive unit 6.

[0074] The drive shaft 601 passes through the rectifier grille 104.

[0075] The input ends of the intake impeller 102 and the reversing gear set 202 are both connected to the drive shaft 601.

[0076] Specifically, a protrusion 1031 is provided on the inner wall of the air inlet duct 103. The protrusion 1031 reduces the cross-sectional area of ​​the air inlet duct 103, thereby increasing the flow velocity of the airflow passing through the air inlet duct 103 by utilizing Bernoulli's principle.

[0077] The fairing 104 includes a grille 1041, on which a fairing 1042 is disposed. In this embodiment, the fairing 1042 is streamlined, such as... Figure 3 and Figure 6 As shown.

[0078] The specific operating principle of this invention is as follows:

[0079] The drive unit 6 drives the transmission shaft 601 to synchronously drive the intake impeller 102 of the booster module 1 and the reversing gear set 202 of the centrifugal mixing module 2. The intake impeller 102 draws dust-laden airflow into the air inlet duct 103, which is then rectified by the rectifier grille 104 and enters the mixing hood 205. At the same time, driven by the transmission shaft 601, the reversing gear set 202 drives the two sets of rotating cages 204 and their blades 2041 to rotate at high speed in opposite directions, powerfully agitating the airflow.

[0080] The spray tower 5 pumps the clarified dust-settling liquid from the filter tank 310 into the spray pipe 502 via the diversion pump 504, and then sprays atomized droplets into the mixing hood 205 through the nozzle 503. Under the action of the bidirectional rotating agitator, the dust-laden airflow and the dust-settling liquid droplets are fully sheared, collided, and mixed, and the dust particles are captured by the droplets. Under the action of centrifugal force, the heavier dust and dust-settling liquid mixture is thrown onto the inner wall of the mixing hood 205, and then falls into the primary sedimentation tank 303 for primary settling after confluence. The clearer liquid at the top after settling overflows into the overflow tank 302 and enters the secondary sedimentation tank 309 for secondary settling through the bottom drain hole. After being stabilized by the baffle 312, the clarified liquid further overflows into the filter tank 310 for recycling.

[0081] The cleaner airflow after mixing and purification enters the ventilation module 4 sequentially through the first exhaust pipe 306 and the second exhaust pipe 311 under the positive pressure of the system. The airflow first passes through the gas-liquid separator 402 to separate the liquid droplets it contains. The separated liquid returns to the secondary sedimentation tank 309 through the return port 314. The separated gas drives the compressor turbine 4034 of the turbocharger 403 to rotate, and simultaneously drives its intake turbine 4035 to draw fresh air from the mine ventilation duct. The fresh air is pressurized and discharged from the exhaust port 4033 to the designated location, improving the ventilation level in the roadway and realizing power recovery and auxiliary ventilation.

[0082] Of course, the above description is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the embodiments of the present invention. The present invention is also not limited to the above examples, and all equivalent changes and improvements made by those skilled in the art within the scope of the present invention should fall within the patent coverage of the present invention.

Claims

1. A mine dust extraction ventilation device, characterised in that, The utility model relates to a dust removal and ventilation device for mine underground, which comprises a booster module (1) for sucking dust airflow, a centrifugal mixing module (2) for stirring the dust airflow is arranged on the air outlet of the booster module (1), a liquid collecting module (3) is connected to the bottom outlet of the centrifugal mixing module (2), and a spray tower (5) is arranged on the liquid collecting module (3). An exhaust port is arranged on the liquid collecting module (3), a ventilation module (4) is connected to the exhaust port of the liquid collecting module (3), the airflow generated by the booster module (1) can be introduced into the ventilation module (4) through the exhaust port of the liquid collecting module (3) and drive the ventilation module (4) to realize ventilation. The dust-settling liquid in the liquid collecting module (3) can be sprayed onto the centrifugal mixing module (2) through the spray tower (5) and mixed with the dust airflow through the stirring of the centrifugal mixing module (2). A driving member (6) is further arranged on the booster module (1), the driving member (6) can coaxially drive the booster module (1) and the centrifugal mixing module (2) to act. The booster module (1) comprises an air inlet cylinder (103), an air suction impeller (102) driven by the driving member (6) is arranged in the air inlet cylinder (103), a support frame (101) for bearing the driving member (6) is arranged on the air inlet cylinder (103), a flow regulating grid (104) is arranged on the air outlet of the air inlet cylinder (103), and the air outlet of the air inlet cylinder (103) is connected to the air inlet of the centrifugal mixing module (2). The centrifugal mixing module (2) comprises a mixing cover (205) connected to the air outlet of the air inlet cylinder (103). A bidirectional mixing module is arranged in the mixing cover (205). The bidirectional mixing module comprises a support shell (201) connected to the flow regulating grid (104) and a reversing gear set (202) arranged in the support shell (201), the reversing gear set (202) is driven by the driving member (6), the reversing gear set (202) is provided with output ends with opposite rotation directions, and beaters are arranged on the output ends of the reversing gear set (202). The beater comprises a transfer frame (203) connected to the output end of the reversing gear set (202), the transfer frame (203) is provided with a rotating cage (204), and a plurality of blades (2041) are uniformly arranged on the rotating cage (204). A bearing plate (2051) is arranged on the air inlet of the mixing cover (205), a plurality of air holes (2052) are arranged on the bearing plate (2051), and the support shell (201) is connected to the bearing plate (2051).

2. The dust removal and ventilation device for mine underground according to claim 1, wherein the liquid collecting module (3) comprises a primary liquid collecting disc (301) connected to the outlet of the mixing cover (205), and a secondary liquid collecting disc (308) is connected below the primary liquid collecting disc (301), and the secondary liquid collecting disc (308) can collect the dust-settling liquid overflowing from the primary liquid collecting disc (301). ​ ​ The inner part of the primary collecting tray (301) is separated into a primary precipitation tank (303) and an overflow tank (302); the primary precipitation tank (303) is arranged at the outer circle of the overflow tank (302); the center of the primary collecting tray (301) is provided with a boss (305), the boss (305) is provided with a hollow transfer platform (304); the first exhaust pipe (306) is arranged through the boss (305) and can extend into the secondary collecting tray (308); a plurality of cleaning windows (307) are arranged on the outer wall of the primary collecting tray (301); The inner part of the secondary collecting tray (308) is provided with a secondary precipitation tank (309) and a filtering tank (310), and the center of the secondary collecting tray (308) is provided with a second exhaust pipe (311) in communication with the outside; the first exhaust pipe (306) and the second exhaust pipe (311) are in communication; The inner part of the secondary precipitation tank (309) is provided with a plurality of partitions (312), and the bottom of each partition (312) is provided with a flow-through hole (313); the side of the secondary precipitation tank (309) is provided with a backflow port (314).

3. The mine underground dust removal and ventilation device according to claim 2, wherein the ventilation module (4) comprises a gas-water separator (402), the gas inlet end of the gas-water separator (402) is connected to the second exhaust pipe (311) through a flow guide pipe (401), the gas outlet end of the gas-water separator (402) is connected with a turbocharger (403), and the water outlet of the gas-water separator (402) is connected with the backflow port (314) through a pipeline.

4. The mine underground dust removal and ventilation device according to claim 3, wherein the spray tower (5) comprises a tower cover (501) arranged on the transfer platform (304), and the tower cover (501) can be inserted into the inner circle of the rotating cage (204); The inner part of the tower cover (501) is provided with a plurality of spray pipes (502), and the tower cover (501) is further provided with a spray head (503) connected with the spray pipes (502); the liquid inlet of the spray pipe (502) is connected with a flow guide pump (504) through a pipeline, and the flow guide pump (504) can pump the dust removal liquid in the filtering tank (310) into the spray pipe (502).

5. The mine underground dust removal and ventilation device according to claim 4, wherein the output end of the driving member (6) is coaxially connected with a transmission shaft (601); The transmission shaft (601) penetrates through the rectifier grid (104); The input ends of the suction impeller (102) and the reversing gear set (202) are connected to the transmission shaft (601).

6. The mine underground dust removal and ventilation device according to claim 5, wherein the inner wall of the air inlet cylinder (103) is provided with a protrusion (1031); The rectifier grid (104) comprises a grid plate (1041) provided with a rectifier cover (1042). ​ ​ ​ ​

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