Liquid flotation device for dust removal spray tower
By designing a liquid flotation device in the dust removal spray tower, the problems of frequent replacement of filter nets and difficult treatment of light impurities in wastewater treatment are solved, and efficient treatment of wastewater and stability of filtration capacity are achieved.
Patent Information
- Application Number
- CN202411912471.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-02-07
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The wastewater treatment in existing dust removal spray towers requires frequent replacement of the filter screen, and it is difficult to effectively deal with light impurities.
A liquid flotation device is designed, including a water divider, a flotation mechanism, a scraping mechanism and a driving mechanism. The water flows evenly to the flotation mechanism through the water divider. The scraping mechanism sweeps light impurities and transports them to the flotation. The agency handles it.
It effectively avoids frequent replacement of filters, improves the efficiency of handling light impurities, and ensures sufficient treatment of wastewater.
Smart Images
Figure CN119386597A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of flue gas treatment, and in particular to a liquid flotation device for a dust removal spray tower. Background Art
[0002] The dust removal spray tower is an industrial waste gas treatment equipment, which is mainly used to treat harmful waste gas and sticky waste gas. Its working principle is that when the smoke-containing gas enters the spray tower through the air duct, the water spray impacts the water layer and changes the movement direction of the gas, while the dust particles continue to move in the original direction due to inertia. Most of the dust particles adhere to the water and remain in the water. After impacting the water bath, some of the dust particles move with the gas, combine with the impact water mist and the circulating spray water, and are further fully mixed in the main body. At this time, the dust particles in the dust-containing gas are captured by the water, and the dust-removed flue gas is converted into clean air and discharged through the dust removal spray tower. After that, the dust in the flue gas can be collected and separated by treating it with the dust-containing water.
[0003] The dust removal spray tower treats different flue gases. There will be many impurities in the wastewater, such as dust, flocs or oil. The traditional treatment of wastewater in the spray tower is to treat the wastewater through multiple processes such as sedimentation, flocculation, filtration, etc. However, during filtration, since the dust removal spray tower continuously treats the flue gas, the filter needs to be replaced after a certain period of treatment. In addition, the lighter oil or flocs in the wastewater will float on the water surface and are difficult to collect. Therefore, in order to fully treat the wastewater without frequently replacing the filter to ensure the filtering capacity, we proposed a liquid flotation device for the dust removal spray tower. Summary of the invention
[0004] The present invention provides a liquid flotation device for a dust removal spray tower, which solves the problem in the prior art that wastewater treatment in the existing dust removal spray tower requires frequent replacement of filter screens and is difficult to treat light impurities.
[0005] The technical solution of the present invention is as follows: A liquid flotation device for a dust removal spray tower, comprising a spray tower, a water separator, a flotation mechanism, a scraping mechanism, a driving mechanism and a drainage trough, wherein the water separator is fixedly arranged at the bottom of the interior of the spray tower, the flotation mechanism is fixedly arranged in the spray tower, the flotation mechanism is arranged below the water separator, the flotation mechanism is used to perform flotation treatment on wastewater in the spray tower, the scraping mechanism is rotatably arranged on the water separator, the scraping mechanism is used to clean and collect light impurities in the water separator, the driving mechanism is fixedly arranged on the spray tower, and the driving mechanism is arranged above the water separator The water separator is provided with a plurality of circular rings which are mutually nested, the circular ring in the center of the water separator is provided with a driving ring, the circular ring on the outer side of the water separator is provided with a water blocking ring, the driving ring is connected to the bottom of the other circular rings, the scraping mechanism is rotatably provided on the driving ring, and a water collecting ring is provided below the water separator. The water collector is arranged in a funnel shape, a guide pipe is arranged in the center of the water collector, the water collector does not contact the water distributor, the guide pipe extends into the flotation mechanism, an exhaust pipe is arranged through the water distributor and the water collector, the water discharge assembly comprises a driving cylinder and a water blocking frame, the driving cylinder is rotatably arranged in the driving ring, the water blocking frame is slidably arranged in the drainage groove, the water blocking frame extends into the driving ring, the output end of the driving cylinder is rotatably connected with one end of the water blocking frame extending into the driving ring, the exhaust pipe penetrates the water blocking frame, and the scraping mechanism comprises a scraping plate 1, a gear ring 1, and a scraping plate 2 , gear ring 2 and gear set, the scraping plate 1 is slidably arranged on the water divider, the scraping plate 1 is in contact with the circular rings on the water divider that are mutually sleeved, the gear ring 1 is arranged on the scraping plate 1, the gear ring is sleeved on the driving ring, the scraping plate 2 is slidably arranged on the water divider, the scraping plate 2 is in contact with the circular rings on the water divider that are mutually sleeved, the gear ring 2 is arranged on the scraping plate 2, the gear ring 2 is rotatably connected with the gear ring 1, the gear ring 1 and the gear ring 2 are staggered, the gear set is arranged on the driving ring, and the gear set is respectively meshed with the gear ring 1 and the gear ring 2.
[0006] The guide pipe is arranged below the driving ring, and an air inlet pipe is arranged on the spray tower. The air inlet pipe passes through the driving ring and then penetrates the water distributor, and the air inlet pipe extends into the guide pipe.
[0007] The gear set includes a gear frame, gear one, gear two and gear three, the gear frame is fixedly arranged on the driving ring, the gear one is rotatably arranged in the gear frame, the gear one is meshed with the gear ring two, the gear two is rotatably arranged in the gear frame, the gear two is meshed with the gear one, the gear three is connected to the gear two, and the gear three is meshed with the gear ring one.
[0008] The driving mechanism includes a driving frame, a stirring shaft, a motor 1 and a motor 2. The driving frame is fixedly arranged on the spray tower. The stirring shaft passes through the water distributor and the guide pipe. The stirring shaft is rotatably arranged on the driving frame and the flotation mechanism. The motor 1 is fixedly arranged on the end of the driving frame extending out of the spray tower. The output end of the motor 1 is transmission-connected to the stirring shaft. The motor 2 is fixedly arranged on the end of the driving frame extending out of the spray tower. The output end of the motor 2 is transmission-connected to the gear 1.
[0009] The flotation mechanism includes a flotation cylinder, a stirring blade, a motor three and a scraper. The flotation cylinder is fixedly arranged in the spray tower, the flotation cylinder is arranged below the water collector, the stirring blade is fixedly installed on the stirring shaft, the motor three is fixedly arranged on the guide tube, the scraper is rotatably arranged on the guide tube, the scraper is transmission-connected to the output end of the motor three, a gap is left between the flotation cylinder and the inner wall of the spray tower, and a drainage trough is provided on the side of the flotation cylinder away from the scraper.
[0010] The working principle and beneficial effects of the present invention are: 1. In the present invention, by setting a water divider, the water in the spray tower falls in a spraying shape, and the water droplets will continuously impact the water surface. In the wastewater treatment method of flotation, the foam will float on the water surface, and the impact of the water droplets will affect the foam. When the water falls on the water divider, the water surface fluctuations between different rings do not affect each other, and the water at the bottom of multiple rings flows with each other, so that the liquid levels between the multiple rings are equal. When the liquid level reaches the top of the water blocking ring, the water will flow into the water collector and flow through the guide pipe to the bottom center of the flotation cylinder for stirring and flotation. The water divider allows the wastewater in the spray tower to flow evenly into the flotation cylinder, avoiding the impact of water droplets affecting the foam and driving the dust to float; 2. In the present invention, a water blocking frame is provided, and a plurality of arc plates are provided on the water blocking frame. The arc plates cooperate with a plurality of circular rings. When the output end of the driving cylinder is shortened, the plurality of arc plates sequentially block the positions of the drainage grooves on the plurality of circular rings to prevent water from flowing out. When the output end of the driving cylinder is extended, the drainage grooves on the plurality of circular rings can be connected, and water flows outward in the center of the water divider. Light impurities on the surface of the wastewater collected by the scraping mechanism will flow into the water collector through the drainage grooves. 3. In the present invention, a water divider, a scraping mechanism and a water discharge assembly are provided. By providing a water divider, the water in the spray tower can flow evenly to the bottom of the flotation mechanism. By providing a scraping mechanism, the light impurities remaining on the surface of the wastewater in the water divider can be gathered and discharged into the water collector for unified treatment. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0012] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure inside the spray tower of the present invention; Figure 3 It is a schematic diagram of the internal structure of the driving frame in the present invention; Figure 4 It is a schematic diagram of the local structure of the drainage trough in the present invention; Figure 5 It is a partial structural schematic diagram of the flotation mechanism in the present invention; Figure 6 It is a schematic diagram of the partial cross-sectional structure inside the flotation cylinder of the present invention; Figure 7 It is a partial structural schematic diagram of the scraping mechanism in the present invention; Figure 8 It is a partial structural schematic diagram of the scraping plate 1 and the scraping plate 2 in the present invention.
[0013] In the figure: 1, spray tower; 2, water distributor; 3, drainage trough; 4, drive ring; 5, water blocking ring; 6, water collector; 7, guide pipe; 8, exhaust pipe; 9, air inlet pipe; 10, drive cylinder; 11, water blocking frame; 12, scraper plate 1; 13, gear ring 1; 14, scraper plate 2; 15, gear ring 2; 16, gear frame; 17, gear 1; 18, gear 2; 19, gear 3; 20, drive frame; 21, stirring shaft; 22, motor 1; 23, motor 2; 24, flotation cylinder; 25, stirring blade; 26, motor 3; 27, scraper; 28, drainage trough. DETAILED DESCRIPTION
[0014] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0015] like Figure 1 to Figure 8As shown, this embodiment proposes a liquid flotation device for a dust removal spray tower 1, including a spray tower 1, a water separator 2, a flotation mechanism, a scraping mechanism, a driving mechanism and a drainage trough 3, the water separator 2 is fixedly arranged at the bottom of the interior of the spray tower 1, the flotation mechanism is fixedly arranged in the spray tower 1, the flotation mechanism is arranged below the water separator 2, the flotation mechanism is used to flotation-treat the wastewater in the spray tower 1, the scraping mechanism is rotatably arranged on the water separator 2, the scraping mechanism is used to clean and collect light impurities in the water separator 2, the driving mechanism is fixedly arranged on the spray tower 1, the driving mechanism is arranged above the water separator 2 and penetrates the water separator 2, the driving mechanism is used to drive the flotation mechanism and the scraping mechanism to move, the drainage trough 3 is opened on the water separator 2, and a water discharge component is slidably arranged in the drainage trough 3 The water discharge component is used to transport the light impurities collected by the scraping mechanism to the flotation mechanism through the drainage trough 3. By setting the water divider 2, the water in the spray tower 1 falls in a spray shape when falling, and the water droplets will continuously impact the water surface. The foam of the flotation wastewater treatment method will float on the water surface, and the impact of the water droplets will affect the foam. When the water falls on the water divider 2, the water surface fluctuations between different rings do not affect each other, and the water at the bottom of multiple rings flows with each other, so that the liquid levels between the multiple rings are equal. When the liquid level reaches the top of the water blocking ring 5, the water will flow into the water collector 6 and flow through the guide pipe 7 to the bottom center of the flotation cylinder 24 for stirring and flotation. The water divider 2 allows the wastewater in the spray tower 1 to flow evenly into the flotation cylinder 24, avoiding the impact of water droplets affecting the foam and driving the dust to float.
[0016] like Figure 1~Figure 4 As shown, the water divider 2 is provided with a plurality of mutually nested rings, the central ring of the water divider 2 is provided as a driving ring 4, the outer ring of the water divider 2 is provided as a water blocking ring 5, the driving ring 4 is connected to the bottom of the other rings, the scraping mechanism is rotatably provided on the driving ring 4, a water collector 6 is provided below the water divider 2, the water collector 6 is provided in a funnel shape, a guide pipe 7 is provided in the center of the water collector 6, the water collector 6 does not contact the water divider 2, the guide pipe 7 extends into the flotation mechanism, an exhaust pipe 8 is provided through the water divider 2 and the water collector 6, the guide pipe 7 is provided below the driving ring 4, an air intake pipe 9 is provided on the spray tower 1, the air intake pipe 9 is connected to an external air pump or fan, after the gas forms bubbles with the wastewater, the excess gas can move to the top of the water divider 2 through the exhaust pipe 8, the air intake pipe 9 passes through the driving ring 4 and then penetrates the water divider 2, and the air intake pipe 9 extends into the guide pipe 7.
[0017] like Figure 3~Figure 7As shown, the water discharge assembly includes a driving cylinder 10 and a water blocking frame 11. The driving cylinder 10 is rotatably arranged in the driving ring 4, and the water blocking frame 11 is slidably arranged in the drainage groove 3. The water blocking frame 11 extends into the driving ring 4. The output end of the driving cylinder 10 is rotatably connected to the end of the water blocking frame 11 extending into the driving ring 4. The exhaust pipe 8 runs through the water blocking frame 11. A plurality of arc plates are arranged on the water blocking frame 11, and the arc plates cooperate with a plurality of circular rings. When the output end of the driving cylinder 10 is shortened, the plurality of arc plates block the positions of the drainage grooves 3 on the plurality of circular rings in turn to prevent water from flowing out. When the output end of the driving cylinder 10 is extended, the drainage grooves 3 on the plurality of circular rings can be connected, and water flows outward from the center of the water divider 2. Light impurities on the surface of the wastewater collected by the scraping mechanism will flow into the water collector 6 through the drainage groove 3.
[0018] like Figure 7~Figure 8 As shown, the scraping mechanism includes a scraping plate 12, a gear ring 13, a scraping plate 2 14, a gear ring 2 15 and a gear set. The scraping plate 12 is slidably arranged on the water divider 2, and the scraping plate 12 is in contact with the driving ring 4, the water blocking ring 5 and other circular rings. The gear ring 13 is arranged on the scraping plate 12, and the gear ring 13 is sleeved on the driving ring 4. The scraping plate 2 14 is slidably arranged on the water divider 2, and the scraping plate 2 14 is in contact with the driving ring 4, the water blocking ring 5 and other circular rings. The gear ring 2 15 is arranged on the scraping plate 2 14, and the gear ring 2 15 is rotatably connected with the gear ring 1 13. The gear ring 13 and the gear ring 2 15 are staggered. The gear set is arranged on the driving ring 4, and the gear set is respectively meshed with the gear ring 13 and the gear ring 2 15.
[0019] like Figure 7 As shown, the gear set includes a gear frame 16, a gear 17, a gear 2 18 and a gear 3 19. The gear frame 16 is fixedly arranged on the driving ring 4, the gear 1 17 is rotatably arranged in the gear frame 16, the gear 1 17 is meshed with the gear ring 2 15, the gear 2 18 is rotatably arranged in the gear frame 16, the gear 2 18 is meshed with the gear 1 17, the gear 3 19 is connected with the gear 2 18, and the gear 3 19 is meshed with the gear ring 1 13. Since the diameters of the gear ring 13 and the gear ring 2 15 are different, the diameters of the gear 1 17, the gear 2 18 and the gear 3 19 are also different. When When gear 17 rotates, it drives gear ring 2 15 to rotate, and drives gear ring 13 to rotate in the opposite direction of gear ring 2 15 through gear 2 18 and gear 3 19, so that scraping plate 12 and scraping plate 2 14 rotate to both sides respectively to hang the impurities floating on the liquid surface between the multiple rings to the drain trough 3. Through the coordination between the diameters of gear 17, gear 2 18 and gear 3 19, the rotation speed of gear ring 13 and gear ring 2 15 is the same, and the motor 2 23 drives gear 17 to reverse, so that scraping plate 12 and scraping plate 2 14 reverse and reset.
[0020] like Figure 2~Figure 3As shown, the driving mechanism includes a driving frame 20, a stirring shaft 21, a motor 1 22 and a motor 23. The driving frame 20 is fixedly arranged on the spray tower 1, the stirring shaft 21 passes through the water divider 2 and the guide tube 7, the stirring shaft 21 is rotatably arranged on the driving frame 20 and the flotation mechanism, the motor 1 22 is fixedly arranged on the end of the driving frame 20 extending out of the spray tower 1, and the output end of the motor 1 22 is transmission-connected with the stirring shaft 21, the motor 23 is fixedly arranged on the end of the driving frame 20 extending out of the spray tower 1, and the output end of the motor 23 is transmission-connected with the gear 17, a transmission wheel is arranged on the output end of the motor 1 22, and a transmission belt is provided on the transmission wheel and the tensioning sleeve on the stirring shaft 21, and a transmission wheel is also arranged on the output end of the motor 23, and a transmission belt is also tensioned on the transmission wheel and the gear 17.
[0021] like Figure 2~Figure 6 As shown, the flotation mechanism includes a flotation cylinder 24, a stirring blade 25, a motor 3 26 and a scraper 27. The flotation cylinder 24 is fixedly arranged in the spray tower 1, and the flotation cylinder 24 is arranged below the water collector 6. The stirring blade 25 is fixedly installed on the stirring shaft 21 at one end close to the flotation cylinder 24. The motor 3 26 is fixedly arranged on the guide tube 7. The scraper 27 is rotatably arranged on the guide tube 7. The scraper 27 is transmission-connected to the output end of the motor 3 26. A gap is left between the flotation cylinder 24 and the inner wall of the spray tower 1. The flotation cylinder 24 is away from the inner wall of the flotation cylinder 24. A drainage groove 28 is provided on one side of the scraper 27. When the motor 1 22 drives the stirring blade 25 to stir, the wastewater and the air are mixed and stirred at the stirring blade 25 to generate bubbles, and the foam floats to the ground, causing the dust and impurities to move upward. When the liquid level in the flotation cylinder 24 rises to the drainage groove 28, it flows out. The motor 3 26 drives the scraper 27 to rotate and can scrape the foam out of the flotation cylinder 24. The bottom of the spray tower 1 is provided with discharge ports on both sides of the flotation cylinder 24, and the water and foam after flotation are discharged at the two outlets respectively.
[0022] In this embodiment, the flue gas is introduced into the spray tower 1 and moves upward. The flue gas is sprayed in the spray tower 1. When the flue gas contacts water, impurities such as dust in the flue gas flow downward with the water. After the water falls into the water divider 2, the water between the rings flows on the water divider 2 through the bottom of the rings. The liquid level fluctuations between the rings do not affect each other. When the liquid level is higher than the water-blocking ring 5, the water flows outward to the water collector 6. The water flows to the bottom of the flotation cylinder 24 through the guide pipe 7. The external air pump inflates the flotation cylinder 24 through the air inlet pipe 9. The gas and the liquid in the guide pipe 7 rush to the stirring blade 25 at the same time. The output end of the motor 22 drives the stirring shaft 21 to rotate, and the stirring shaft 21 drives the stirring blade 25 to rotate. The stirring blade 25 stirs the gas and the wastewater together to generate bubbles. In the process of the bubbles floating up, they are mixed with impurities such as dust in the wastewater. The output end of the motor 3 26 The scraper 27 is driven to rotate, and the scraper 27 scrapes the foam on the surface of the wastewater in the flotation cylinder 24 out of the flotation cylinder 24, and the liquid that has been floated is discharged from the flotation cylinder 24 through the drainage groove 28. When there are light impurities such as oil on the surface of the liquid in the water separator 2, the output end of the motor 23 drives the gear 17 to rotate, and the gear 17 drives the gear ring 2 15 and the scraping plate 2 14 to rotate. At the same time, the gear 17 drives the gear 2 18 and the gear 3 19 to rotate, and the gear 3 19 drives the gear ring 13 and the scraping plate 12 to rotate in the opposite direction. When the scraping plate 12 and the scraping plate 2 14 rotate and gradually approach the water blocking frame 11, the wastewater and light impurities in the circular ring are pushed toward the drainage groove 3, and the output end of the driving cylinder 10 is extended to push the water blocking frame 11 to slide on the drainage groove 3, so that the wastewater in multiple circular rings flows out from the inside to the outside into the water collector 6 and is cleaned by the flotation mechanism.
[0023] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A liquid flotation device for a dust removal spray tower, comprising a spray tower (1), characterized in that: Also includes: A water separator (2), the water separator (2) being fixedly arranged at the bottom of the spray tower (1); A flotation mechanism, the flotation mechanism being fixedly arranged in the spray tower (1), the flotation mechanism being arranged below the water separator (2), and the flotation mechanism being used for flotation treatment of wastewater in the spray tower (1); A scraping mechanism, the scraping mechanism being rotatably arranged on the water separator (2), and the scraping mechanism being used to clean and collect light impurities in the water separator (2); A driving mechanism, the driving mechanism being fixedly arranged on the spray tower (1), the driving mechanism being arranged above the water divider (2) and penetrating the water divider (2), the driving mechanism being used to drive the flotation mechanism and the scraping mechanism to move; A drainage trough (3), the drainage trough (3) being provided on the water distributor (2), a water discharge component being slidably arranged in the drainage trough (3), the water discharge component being used to transport the light impurities collected by the scraping mechanism to the flotation mechanism through the drainage trough (3); The water separator (2) is provided with a plurality of circular rings which are nested with each other, the circular ring in the center of the water separator (2) is provided as a driving ring (4), the circular ring outside the water separator (2) is provided as a water blocking ring (5), the driving ring (4) is connected to the bottoms of the other circular rings, the scraping mechanism is rotatably provided on the driving ring (4), a water collector (6) is provided below the water separator (2), the water collector (6) is provided in a funnel shape, a guide pipe (7) is provided in the center of the water collector (6), the water collector (6) does not contact the water separator (2), the guide pipe (7) extends into the flotation mechanism, and an exhaust pipe (8) is provided through the water separator (2) and the water collector (6); The water discharge assembly comprises: A drive cylinder (10), the drive cylinder (10) being rotatably disposed in the drive ring (4); a water blocking frame (11), the water blocking frame (11) being slidably disposed in the drainage groove (3), the water blocking frame (11) extending into the driving ring (4), the output end of the driving cylinder (10) being rotatably connected to an end of the water blocking frame (11) extending into the driving ring (4), and the exhaust pipe (8) passing through the water blocking frame (11); The scraping mechanism comprises: A scraping plate (12), wherein the scraping plate (12) is slidably disposed on the water divider (2), and the scraping plate (12) is in contact with circular rings which are sleeved on the water divider (2); A gear ring (13), wherein the gear ring (13) is arranged on the scraping plate (12), and the gear ring (13) is sleeved on the driving ring (4); A second scraping plate (14), the second scraping plate (14) being slidably disposed on the water divider (2), the second scraping plate (14) being in contact with circular rings sleeved on the water divider (2); Gear ring 2 (15), the gear ring 2 (15) is arranged on the scraping plate 2 (14), the gear ring 2 (15) is rotatably connected to the gear ring 1 (13), and the gear ring 1 (13) and the gear ring 2 (15) are arranged alternately; A gear set, the gear set being arranged on the drive ring (4), the gear set being meshed with the first gear ring (13) and the second gear ring (15) respectively.
2. A liquid flotation device for a dust removal spray tower according to claim 1, characterized in that: The guide pipe (7) is arranged below the drive ring (4), and an air inlet pipe (9) is arranged on the spray tower (1). The air inlet pipe (9) passes through the drive ring (4) and then penetrates the water distributor (2). The air inlet pipe (9) extends into the guide pipe (7).
3. A liquid flotation device for a dust removal spray tower according to claim 2, characterized in that: The gear set comprises: a gear frame (16), the gear frame (16) being fixedly arranged on the drive ring (4); Gear 1 (17), the gear 1 (17) being rotatably disposed in the gear frame (16), the gear 1 (17) being meshed with the gear ring 2 (15); Gear 2 (18), the gear 2 (18) is rotatably disposed in the gear frame (16), and the gear 2 (18) is meshed with the gear 1 (17); Gear three (19), the gear three (19) is connected to the gear two (18), and the gear three (19) is meshed with the gear ring one (13).
4. A liquid flotation device for a dust removal spray tower according to claim 3, characterized in that: The driving mechanism comprises: A driving frame (20), the driving frame (20) being fixedly arranged on the spray tower (1); a stirring shaft (21), the stirring shaft (21) passing through the water separator (2) and the flow guide pipe (7), the stirring shaft (21) being rotatably disposed on the driving frame (20) and the flotation mechanism; Motor 1 (22), the motor 1 (22) being fixedly arranged on an end of the drive frame (20) extending out of the spray tower (1), the output end of the motor 1 (22) being drivingly connected to the stirring shaft (21); Motor 2 (23), the motor 2 (23) is fixedly arranged on one end of the drive frame (20) extending out of the spray tower (1), and the output end of the motor 2 (23) is drivingly connected to the gear 1 (17).
5. A liquid flotation device for a dust removal spray tower according to claim 4, characterized in that: The flotation mechanism comprises: A flotation cylinder (24), wherein the flotation cylinder (24) is fixedly arranged in the spray tower (1), and the flotation cylinder (24) is arranged below the water collector (6); A stirring blade (25), wherein the stirring blade (25) is fixedly mounted on the stirring shaft (21); Motor three (26), the motor three (26) being fixedly arranged on the flow guide tube (7); A scraper (27), the scraper (27) is rotatably disposed on the guide tube (7), and the scraper (27) is drivingly connected to the output end of the motor three (26).
6. A liquid flotation device for a dust removal spray tower according to claim 5, characterized in that: A gap is left between the flotation cylinder (24) and the inner wall of the spray tower (1), and a drainage groove (28) is provided on a side of the flotation cylinder (24) away from the scraper (27).