A supergravity wet oil and dust removal device

Abstract

This invention proposes a gravity-driven wet oil and dust removal device, relating to the field of filter cleaning technology. It includes a purification cylinder with an air inlet pipe installed at one end. An inner cylinder is installed inside the purification cylinder, and a small-diameter mixing impeller is rotatably mounted inside the inner cylinder. The outlet end of the air inlet pipe is connected to the inlet end of the small-diameter mixing impeller. This invention provides a gravity-driven wet oil and dust removal device. Through the arrangement of the purification cylinder, air inlet pipe, inner cylinder, small-diameter mixing impeller, first water inlet pipe, large-diameter mixing impeller, speed-regulating and direction-changing mechanism, sewage discharge tank, and sewage discharge pipe, the device can change the flow direction of industrial waste gas through two bidirectionally rotating mixing impellers. This makes the flow path of industrial waste gas and cleaning liquid more complex, resulting in more thorough collision of oil and dust in the water and gas, and a better cleaning effect on industrial waste gas. The device can adjust the speed difference between the two mixing impellers according to the actual situation of the industrial waste gas, further enhancing the oil and dust removal effect.

Description

Technical Field

[0001] This invention relates to the field of cleaning filter technology, and more particularly to a super gravity wet oil and dust removal device. Background Technology

[0002] During industrial production, the emission of large amounts of oily and dusty waste gas causes serious environmental pollution. To address this problem, wet scrubbing equipment is widely used. Traditional wet scrubbing equipment mainly operates based on principles such as inertial collision, interception, and diffusion. When oily and dusty waste gas flows inside the equipment, oil droplets and dust particles in the airflow are captured by the liquid after colliding with spray droplets or specific components inside the equipment due to their own inertia, and are then separated from the airflow, thus achieving the purpose of purification.

[0003] Existing wet oil and dust removal equipment uses the high-speed rotation of an internal radial mixing impeller to generate a super-gravity field, causing oily and dusty gases and liquids to collide and condense. However, in practice, the flow field generated by the radial mixing impeller is relatively simple, resulting in limited gas-liquid mixing and insufficient efficiency in capturing dirt in the exhaust gas. Summary of the Invention

[0004] Based on the technical problems existing in the background art, the present invention proposes a supergravity wet oil and dust removal device.

[0005] The present invention proposes a supergravity wet oil and dust removal device, including a purification cylinder, an air inlet pipe installed at one end of the purification cylinder, an inner cylinder installed inside the purification cylinder, a small-diameter mixing impeller rotatably installed inside the inner cylinder, the outlet end of the air inlet pipe being connected to the inlet end of the small-diameter mixing impeller, and a No. 1 water inlet pipe installed at one end of the air inlet pipe located outside the purification cylinder.

[0006] A large-diameter mixing impeller is rotatably installed inside the purification cylinder, and the outlet end of the inner cylinder is connected to the inlet end of the large-diameter mixing impeller.

[0007] The small-diameter mixing impeller rotates in the opposite direction to the No. 1 inlet pipe;

[0008] A speed-regulating and direction-changing mechanism is provided between the small-diameter mixing impeller and the large-diameter mixing impeller. The speed-regulating and direction-changing mechanism can make the rotation directions of the small-diameter mixing impeller and the large-diameter mixing impeller opposite. The speed-regulating and direction-changing mechanism can also adjust the speed difference between the small-diameter mixing impeller and the large-diameter mixing impeller.

[0009] The bottom of the purification cylinder is equipped with a sewage discharge trough, which is connected to the inside of the purification cylinder, and a sewage discharge pipe is installed on the sewage discharge trough.

[0010] The purification cylinder is also equipped with a filtration mechanism, which is used to filter out the water in the cleaned gas.

[0011] Preferably, the speed regulating and reversing mechanism includes a mounting box, a connecting shaft, a driven bevel gear, a transmission shaft, a driving bevel gear, and a speed regulating transmission assembly; the mounting box is fixedly installed inside the purification cylinder, the mounting box has a transmission chamber, a mounting frame is fixedly installed inside the purification cylinder, the connecting shaft is rotatably installed on the mounting frame, one end of the connecting shaft is fixedly connected to a small-diameter mixing impeller, and the other end of the connecting shaft rotatably passes through the mounting box and extends into the transmission chamber to be fixedly connected to the driven bevel gear;

[0012] One end of the drive shaft is fixedly connected to a large-diameter mixing impeller, and the other end of the drive shaft rotates through the mounting box and extends into the transmission chamber to be fixedly connected to the drive bevel gear.

[0013] The speed regulating transmission assembly is used to convert the rotational motion of the driving bevel gear into the opposite rotation of the driven bevel gear. The speed regulating transmission assembly can also adjust the speed difference between the driving bevel gear and the driven bevel gear.

[0014] Preferably, the speed regulating transmission assembly includes a first rotating shaft, a second rotating shaft, a first bevel gear, a first conical transmission roller, a second bevel gear, a second conical transmission roller, a transmission belt, and an adjusting component; both the first and second rotating shafts are rotatably mounted in the transmission chamber, and the first and second rotating shafts are arranged in parallel.

[0015] The first bevel gear and the first conical transmission roller are both mounted on the first rotating shaft, and the first bevel gear meshes with the driven bevel gear;

[0016] The second bevel gear and the second conical transmission roller are both mounted on the second rotating shaft, and the second bevel gear meshes with the driving bevel gear;

[0017] The transmission belt is fitted onto the first conical transmission roller and the second conical transmission roller;

[0018] The adjusting component is used to adjust the radial sliding of the transmission belt on the first and second conical transmission rollers.

[0019] Preferably, the adjusting component includes a pushing clamp and an electric slide rail; the electric slide rail is installed in the transmission chamber, the pushing clamp is installed on the slider of the electric slide rail, and the pushing clamp can push the transmission belt to slide in the transmission chamber.

[0020] Preferably, a second water inlet pipe is installed on the purification cylinder, and a water inlet cavity is opened in the installation box. One end of the second water inlet pipe passes through the purification cylinder and the inner cylinder in sequence and communicates with the water inlet cavity. Multiple water distribution holes are opened at the end of the installation box near the large-diameter mixing impeller. The multiple water distribution holes are arranged in a ring array around the drive shaft.

[0021] Preferably, it further includes an installation cylinder and a dual-axis motor; the installation cylinder is fixedly installed inside the purification cylinder, the dual-axis motor is fixedly installed inside the installation cylinder, and the output shaft of the dual-axis motor passes through the end of the installation cylinder and is fixedly connected to the end of the transmission shaft.

[0022] Preferably, the filtration mechanism includes a conical centrifugal dehydration grid; the conical centrifugal dehydration grid has strip-shaped filter ports circumferentially open, and an external square tube communicating with the strip-shaped filter ports is installed on the outer periphery of the conical centrifugal dehydration grid. The number of external square tubes is the same as the number of strip-shaped filter ports and they are arranged in a one-to-one correspondence. The large-diameter end of the conical centrifugal dehydration grid faces the mounting cylinder, and the large-diameter end of the conical centrifugal dehydration grid is connected to the inner wall of the purification cylinder.

[0023] Preferably, the filtration mechanism further includes fan blades and a conical plate; the fan blades are mounted on the other end of the output shaft of the dual-shaft motor, the fan blades are located inside the mounting cylinder, the end of the mounting cylinder away from the large-diameter mixing impeller is open, and the conical plate is mounted at the open end of the mounting cylinder, with the tip of the conical plate facing the fan blades;

[0024] The purification cylinder is equipped with a vent pipe that communicates with the inside of the installation cylinder.

[0025] Preferably, it further includes guide vanes; the number of guide vanes is multiple, and the multiple guide vanes are arranged in a ring array on the outer periphery of the mounting cylinder.

[0026] Preferably, a plurality of the guide vanes are arranged obliquely on the outer periphery of the mounting cylinder, and a plurality of the strip-shaped filter ports are arranged obliquely on the conical centrifugal dewatering grid, with the oblique direction of the strip-shaped filter ports being opposite to the oblique direction of the guide vanes.

[0027] The ultragravity wet oil and dust removal device proposed in this invention has the following beneficial effects: Through the configuration of a purification cylinder, air inlet pipe, internal cylinder, small-diameter mixing impeller, first water inlet pipe, large-diameter mixing impeller, speed regulation and direction changing mechanism, sewage discharge tank, and sewage discharge pipe, the two bidirectional rotating mixing impellers can change the flow direction of industrial waste gas, making the flow path of industrial waste gas and cleaning liquid more complex. This results in more thorough collision of oil and dust in the water and gas, leading to a better cleaning effect on industrial waste gas. Furthermore, the speed difference between the two mixing impellers can be adjusted according to the actual situation of the industrial waste gas, further enhancing the oil and dust removal effect. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of a supergravity wet oil and dust removal device proposed in this invention;

[0029] Figure 2 This is a side sectional view of a supergravity wet oil and dust removal device proposed in this invention;

[0030] Figure 3 This is a cross-sectional view of the industrial waste gas cleaning section in a supergravity wet oil and dust removal device proposed in this invention.

[0031] Figure 4 This is a cross-sectional view of the water component in the filtered gas of a supergravity wet oil and dust removal device proposed in this invention.

[0032] Figure 5 This is a cross-sectional view of the mounting box in a supergravity wet oil and dust removal device proposed in this invention;

[0033] Figure 6 This invention proposes a high-gravity wet oil and dust removal device. Figure 2 Enlarged view of point A in the middle;

[0034] Figure 7 This is a schematic diagram of the flow of gas and water in a supergravity wet oil and dust removal device proposed in this invention.

[0035] In the diagram: 1. Purification cylinder; 2. Air inlet pipe; 3. Internal cylinder; 4. Small-diameter mixing impeller; 5. No. 1 water inlet pipe; 6. Large-diameter mixing impeller; 7. Mounting box; 8. Connecting shaft; 9. Driven bevel gear; 10. Transmission shaft; 11. Driving bevel gear; 12. Sewage discharge trough; 13. Sewage discharge pipe; 14. Transmission chamber; 15. Mounting bracket; 16. No. 1 rotating shaft; 17. No. 2 rotating shaft; 18. ... 19. First conical drive roller; 20. Second bevel gear; 21. Second conical drive roller; 22. Drive belt; 23. Pushing clamp; 24. Second water inlet pipe; 25. Water inlet chamber; 26. Water distribution hole; 27. Mounting cylinder; 28. Dual-shaft motor; 29. ​​Conical centrifugal dewatering grid; 30. External square tube; 31. Fan blade; 32. Conical plate; 33. Guide vane; 34. Vent pipe. Detailed Implementation

[0036] Reference Figures 1-7This invention proposes a high-gravity wet oil and dust removal device, including a purification cylinder 1. An air inlet pipe 2 is installed at one end of the purification cylinder 1. An internal cylinder 3 is installed inside the purification cylinder 1. Industrial waste gas enters the internal cylinder 3 through the air inlet pipe 2. A small-diameter mixing impeller 4 is rotatably installed inside the internal cylinder 3. The outlet end of the air inlet pipe 2 is connected to the inlet end of the small-diameter mixing impeller 4. A water inlet pipe 5 is installed at one end of the air inlet pipe 2 located outside the purification cylinder 1. In actual operation, industrial waste gas enters the internal cylinder 3 through the air inlet pipe 2, and simultaneously, water enters the internal cylinder 3 through the water inlet pipe 5. The high-speed rotating small-diameter mixing impeller 4 atomizes the water and flings it outwards. The atomized water and the water entering the small-diameter mixing impeller... The exhaust gases inside chamber 4 collide and mix, capturing and settling oil and dust, thus achieving oil and dust removal treatment for industrial exhaust gases. A large-diameter mixing impeller 6 is rotatably installed inside the purification cylinder 1. The outlet end of the inner cylinder 3 is connected to the inlet end of the large-diameter mixing impeller 6. The small-diameter mixing impeller 4 rotates in the opposite direction to the first water inlet pipe 5. A speed-regulating and direction-changing mechanism is provided between the small-diameter mixing impeller 4 and the large-diameter mixing impeller 6. This mechanism allows the small-diameter mixing impeller 4 and the large-diameter mixing impeller 6 to rotate in opposite directions and also adjusts the speed difference between them. In actual operation, the atomized water and the sequentially cleaned... After the exhaust gas enters the large-diameter mixing impeller 6, the flow direction of the exhaust gas and atomized water is changed by the reverse rotation of the large-diameter mixing impeller 6. This makes the relative motion between the gas and liquid more intense. During the rising and falling process, the gas continuously encounters water flowing in different directions, increasing the gas-liquid contact area and contact time. Similar to a counter-flow heat exchanger, the counter-flow operation can keep the mass transfer driving force between the gas and liquid at a large value throughout the contact process, thereby more effectively promoting the transfer of dust and pollutants from the gas phase to the liquid phase and improving the cleaning effect. The airflow in the opposite direction can improve the flow field distribution within the air scrubber, avoiding local airflow dead zones or short-circuit phenomena, allowing the gas to pass through the water layer more evenly, reducing... The reduced gas flow and channeling allow each part of the gas to fully contact the water and be cleaned, thereby improving the overall cleaning performance and stability of the equipment. A drain trough 12 is installed at the bottom of the purification cylinder 1, which is connected to the inside of the purification cylinder 1. A drain pipe 13 is installed on the drain trough 12. After the gas washing is completed, the wastewater generated flows through the inner wall of the purification cylinder 1 to the bottom of the purification cylinder 1 and flows into the drain trough 12. The wastewater flowing into the drain trough 12 is discharged through the drain pipe 13. A filter mechanism is also installed inside the purification cylinder 1. The filter mechanism is used to filter out the water in the cleaned gas. The filter mechanism filters out some residual water in the gas after the gas washing, reducing the amount of water carried out in the gas.

[0037] like Figure 2 , Figure 3 , Figure 5 and Figure 6As shown, the speed regulating and reversing mechanism includes a mounting box 7, a connecting shaft 8, a driven bevel gear 9, a transmission shaft 10, a driving bevel gear 11, and a speed regulating transmission assembly. The mounting box 7 is fixedly installed inside the purification cylinder 1. A transmission chamber 14 is opened inside the mounting box 7. A mounting bracket 15 is fixedly installed inside the purification cylinder 1. The connecting shaft 8 is rotatably mounted on the mounting bracket 15. One end of the connecting shaft 8 is fixedly connected to a small-diameter mixing impeller 4, and the other end of the connecting shaft 8 rotatably passes through the mounting box 7 and extends into the transmission chamber 14, where it is fixedly connected to the driven bevel gear 9. One end of the transmission shaft 10 is fixedly connected to a large-diameter mixing impeller 6, and the other end of the transmission shaft 10 rotatably passes through the mounting box 7 and extends into the transmission chamber 14, where it is fixedly connected to the driving bevel gear 11. The speed regulating transmission assembly is used to convert the rotation of the driving bevel gear 11 into the opposite rotation of the driven bevel gear 9. The speed regulating transmission assembly can also adjust the rotation of the driving bevel gear 11. The speed difference between the driving bevel gear 11 and the driven bevel gear 9, in actual operation, causes the drive shaft 10 and the large-diameter mixing impeller 6 to rotate synchronously when the large-diameter mixing impeller 6 rotates at high speed. The rotation of the drive shaft 10 drives the driving bevel gear 11 to rotate synchronously, and then, through the speed-regulating transmission assembly, drives the driven bevel gear 9 to rotate in the opposite direction. The reverse-rotating driven bevel gear 9 drives the connecting shaft 8 to rotate synchronously, and the rotating connecting shaft 8 drives the small-diameter mixing impeller 4 to rotate synchronously. The cooperation between the small-diameter mixing impeller 4 and the large-diameter mixing impeller 6 allows the industrial waste gas to move in opposite directions, thus achieving a better cleaning effect. Furthermore, during operation, the speed difference between the small-diameter mixing impeller 4 and the large-diameter mixing impeller 6 can be changed through the speed-regulating transmission assembly, thereby achieving better dust and oil removal effects depending on the condition of the industrial waste gas.

[0038] like Figure 2 , Figure 3 , Figure 5 and Figure 6As shown, the speed regulating transmission assembly includes a first rotating shaft 16, a second rotating shaft 17, a first bevel gear 18, a first conical transmission roller 19, a second bevel gear 20, a second conical transmission roller 21, a transmission belt 22, and an adjusting component. Both the first rotating shaft 16 and the second rotating shaft 17 are rotatably mounted within the transmission chamber 14, and are arranged in parallel. The first bevel gear 18 and the first conical transmission roller 19 are both mounted on the first rotating shaft 16. The first bevel gear 18 and the driven bevel gear... Wheel 9 meshes with the drive bevel gear 11. The second bevel gear 20 and the second conical drive roller 21 are both mounted on the second rotating shaft 17. The second bevel gear 20 meshes with the drive bevel gear 11. The transmission belt 22 is mounted on the first conical drive roller 19 and the second conical drive roller 21. The first conical drive roller 19 and the second conical drive roller 21 are centrally symmetrically arranged within the transmission chamber 14. An adjusting element is used to adjust the radial sliding of the transmission belt 22 on the first conical drive roller 19 and the second conical drive roller 21. The adjusting element includes a pushing mechanism. The clamping block 23 is connected to the electric slide rail. The electric slide rail is installed in the transmission chamber 14. The clamping block 23 is installed on the slider of the electric slide rail. The clamping block 23 can push the transmission belt 22 to slide in the transmission chamber 14. The transmission belt 22 is clamped by the clamping block 23 and can slide between the clamping blocks 23. In actual operation, when the active bevel gear 11 rotates, the active bevel gear 11 drives the second bevel gear 20 to rotate. The rotation of the second bevel gear 20 drives the second rotating shaft 17 and the second conical transmission roller 21 to rotate synchronously. Then, through the transmission belt 22, the first conical rotating roller 19, the first rotating shaft 16 and the first bevel gear 18 are driven to rotate synchronously. The first bevel gear 18 drives the driven bevel gear 9 to rotate. Then, the driven bevel gear 9 drives the connecting shaft 8 and the small diameter mixing impeller 4 to rotate, thereby realizing the rotation in opposite directions. In addition, by pushing the clamping block 23, the transmission belt 22 is pushed to slide radially on the two conical transmission rollers, thereby realizing the transmission of changing the differential speed.

[0039] like Figure 1 , Figure 2 , Figure 3 and Figure 7 As shown, a second water inlet pipe 24 is installed on the purification cylinder 1, and a water inlet chamber 25 is opened in the installation box 7. One end of the second water inlet pipe 24 passes through the purification cylinder 1 and the inner cylinder 3 in sequence and communicates with the water inlet chamber 25. Multiple water distribution holes 26 are opened at the end of the installation box 7 near the large-diameter mixing impeller 6. The multiple water distribution holes 26 are arranged in a ring array around the drive shaft 10. In actual practice, when the large-diameter mixing impeller 6 performs secondary cleaning of industrial waste gas, new water is injected through the second water inlet pipe 24. The water enters the water inlet chamber 25 and is then sprayed out through the water distribution holes 26. This ensures the uniformity of water blowing, ensures the effect of air washing, and reduces the situation of uneven cleaning caused by uneven water distribution.

[0040] like Figure 2 , Figure 4and Figure 7 As shown, it also includes a mounting cylinder 27 and a dual-shaft motor 28; the mounting cylinder 27 is fixedly installed inside the purification cylinder 1, and the dual-shaft motor 28 is fixedly installed inside the mounting cylinder 27. The output shaft of the dual-shaft motor 28 passes through the end of the mounting cylinder 27 and is fixedly connected to the end of the transmission shaft 10. The dual-shaft motor 28 is the power source for driving the two radial mixing impellers, thereby ensuring the operation of the two radial mixing impellers.

[0041] like Figure 2 , Figure 4 and Figure 7 As shown, the filtration mechanism includes a conical centrifugal dehydration grid 29; the conical centrifugal dehydration grid 29 has strip-shaped filter ports circumferentially open, and an external square tube 30 connected to the strip-shaped filter ports is installed on the outer periphery of the conical centrifugal dehydration grid 29. The number of external square tubes 30 is the same as the number of strip-shaped filter ports and they are arranged one-to-one. The large-diameter end of the conical centrifugal dehydration grid 29 faces the mounting cylinder 27, and the large-diameter end of the conical centrifugal dehydration grid 29 is connected to the inner wall of the purification cylinder 1. In actual practice, the gas after gas washing will carry a large amount of water. When the water flows with the gas to the outlet end of the purification cylinder 1, due to the obstruction of the mounting cylinder 27 and the high-speed rotation of the large-diameter mixing impeller 6, most of the water is washed away. The gas flows along the inner wall of the purification cylinder 1 and directly impacts the inner wall of the conical centrifugal dehydration grid 29. The water is blocked by the impact on the inner wall of the conical surface and gathers into water droplets that fall into the drain tank 12 and are discharged. Some of the gas flows along the inner wall of the conical surface and is discharged to the outlet end of the purification cylinder 1. Some gas and water pass through the strip filter port and through the conical centrifugal dehydration grid 29. The water condenses and flows down the outer periphery of the conical centrifugal dehydration grid 29. Due to the setting of the external square tube 30, the water flowing on the outer periphery of the conical centrifugal dehydration grid 29 can be reduced from flowing back into the strip filter port, thus reducing the obstruction to the flow of gas entering the strip filter port.

[0042] In practice, although the large-diameter mixing impeller 6 directs the gas and liquid to flow along the inner wall of the purification cylinder 1, in reality, after the gas and liquid pass through the mounting cylinder 27, there is no obstruction at the center of the purification cylinder 1. The gas and liquid will quickly flow towards the center of the purification cylinder 1, and some of the liquid will flow out directly, which will affect the recovery of the liquid. Therefore, the following settings are made.

[0043] like Figure 2 , Figure 4 and Figure 7As shown, the filtration mechanism also includes a fan blade 31 and a conical plate 32. The fan blade 31 is mounted on the output shaft of the other end of the dual-shaft motor 28. The fan blade 31 is located inside the mounting cylinder 27. The end of the mounting cylinder 27 away from the large-diameter mixing impeller 6 is open. The conical plate 32 is mounted at the open end of the mounting cylinder 27, and the tip of the conical plate 32 faces the fan blade 31. The purification cylinder 1 is equipped with a vent pipe 34 that communicates with the inside of the mounting cylinder 27. In the specific operation process, the dual-shaft motor 28 drives the fan blade 31 to rotate at high speed. Clean air from the outside is drawn in through the vent pipe 34. The drawn-in air diffuses along the conical surface of the conical plate 32 around the inner wall of the purification cylinder 1 and blows the cleaned air toward the inner wall of the conical centrifugal dehydration grid 29, reducing the direct discharge of the cleaned air from the center of the conical centrifugal dehydration grid 29, thus effectively filtering the water.

[0044] Additionally, a guide vane 33 is provided, which includes multiple guide vanes 33 arranged in a ring array on the outer periphery of the mounting cylinder 27. Due to the guiding effect of the guide vanes 33, the cleaned gas can flow along the inner wall of the purification cylinder 1 in a spiral manner. Multiple guide vanes 33 are arranged obliquely on the outer periphery of the mounting cylinder 27, and multiple strip-shaped filter ports are arranged obliquely on the conical centrifugal dehydration grid 29. The oblique direction of the strip-shaped filter ports is opposite to the oblique direction of the guide vanes 33. The gas flows through the inner wall of the conical surface of the conical centrifugal dehydration grid 29 under the guidance of the guide vanes 33. When passing through the strip-shaped filter ports, it is convenient for the water in the gas to pass through the strip-shaped filter ports.

[0045] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-gravity wet oil and dust removal device, characterized in that, Includes a purification cylinder (1), an air inlet pipe (2) installed at one end of the purification cylinder (1), an inner cylinder (3) installed inside the purification cylinder (1), a small-diameter mixing impeller (4) rotatably installed inside the inner cylinder (3), the outlet end of the air inlet pipe (2) is connected to the inlet end of the small-diameter mixing impeller (4), and a No. 1 water inlet pipe (5) is installed at one end of the air inlet pipe (2) located outside the purification cylinder (1). A large-diameter mixing impeller (6) is rotatably installed inside the purification cylinder (1), and the outlet end of the inner cylinder (3) is connected to the inlet end of the large-diameter mixing impeller (6). A speed regulation and direction changing mechanism is provided between the small diameter mixing impeller (4) and the large diameter mixing impeller (6). The speed regulation and direction changing mechanism can make the rotation directions of the small diameter mixing impeller (4) and the large diameter mixing impeller (6) opposite. The speed regulation and direction changing mechanism can also adjust the speed difference between the small diameter mixing impeller (4) and the large diameter mixing impeller (6). The bottom of the purification cylinder (1) is equipped with a drain trough (12), which is connected to the inside of the purification cylinder (1), and a drain pipe (13) is installed on the drain trough (12). The purification cylinder (1) is also equipped with a filtration mechanism, which is used to filter out the water in the cleaned gas. The speed regulating and direction changing mechanism includes a mounting box (7), a connecting shaft (8), a driven bevel gear (9), a transmission shaft (10), a driving bevel gear (11), and a speed regulating transmission assembly; the mounting box (7) is fixedly installed inside the purification cylinder (1), and a transmission chamber (14) is opened inside the mounting box (7). A mounting frame (15) is fixedly installed inside the purification cylinder (1). The connecting shaft (8) is rotatably installed on the mounting frame (15). One end of the connecting shaft (8) is fixedly connected to a small-diameter mixing impeller (4), and the other end of the connecting shaft (8) rotatably passes through the mounting box (7) and extends into the transmission chamber (14) to be fixedly connected to the driven bevel gear (9); One end of the drive shaft (10) is fixedly connected to the large-diameter mixing impeller (6), and the other end of the drive shaft (10) rotates through the mounting box (7) and extends into the transmission chamber (14) to be fixedly connected to the active bevel gear (11). The speed regulating transmission assembly is used to convert the rotational action of the driving bevel gear (11) into the opposite rotation of the driven bevel gear (9). The speed regulating transmission assembly can also adjust the speed difference between the driving bevel gear (11) and the driven bevel gear (9). The speed regulating transmission assembly includes a first rotating shaft (16), a second rotating shaft (17), a first bevel gear (18), a first conical transmission roller (19), a second bevel gear (20), a second conical transmission roller (21), a transmission belt (22), and an adjusting component; the first rotating shaft (16) and the second rotating shaft (17) are both rotatably installed in the transmission chamber (14), and the first rotating shaft (16) and the second rotating shaft (17) are arranged in parallel. The first bevel gear (18) and the first conical transmission roller (19) are both mounted on the first rotating shaft (16), and the first bevel gear (18) meshes with the driven bevel gear (9); The second bevel gear (20) and the second conical transmission roller (21) are both mounted on the second rotating shaft (17), and the second bevel gear (20) meshes with the driving bevel gear (11); The transmission belt (22) is fitted onto the first conical transmission roller (19) and the second conical transmission roller (21); The adjusting component is used to adjust the radial sliding of the transmission belt (22) on the first conical transmission roller (19) and the second conical transmission roller (21); The adjusting component includes a push clamp (23) and an electric slide rail; the electric slide rail is installed in the transmission chamber (14), the push clamp (23) is installed on the slider of the electric slide rail, and the push clamp (23) can push the transmission belt (22) to slide in the transmission chamber (14).

2. The ultragravity wet oil and dust removal equipment according to claim 1, characterized in that, The purification cylinder (1) is equipped with a second water inlet pipe (24), and the installation box (7) has an inlet cavity (25). One end of the second water inlet pipe (24) passes through the purification cylinder (1) and the inner cylinder (3) in sequence and communicates with the inlet cavity (25). The installation box (7) has multiple water distribution holes (26) at the end near the large diameter mixing impeller (6). The multiple water distribution holes (26) are arranged in a ring array around the drive shaft (10).

3. The ultragravity wet oil and dust removal equipment according to claim 2, characterized in that, It also includes an installation cylinder (27) and a dual-axis motor (28); the installation cylinder (27) is fixedly installed inside the purification cylinder (1), the dual-axis motor (28) is fixedly installed inside the installation cylinder (27), and the output shaft of the dual-axis motor (28) passes through the end of the installation cylinder (27) and is fixedly connected to the end of the transmission shaft (10).

4. The ultragravity wet oil and dust removal equipment according to claim 3, characterized in that, The filtration mechanism includes a conical centrifugal dehydration grid (29); the conical centrifugal dehydration grid (29) has a strip-shaped filter port on its circumference, and an external square tube (30) connected to the strip-shaped filter port is installed on the outer periphery of the conical centrifugal dehydration grid (29). The number of external square tubes (30) is the same as the number of strip-shaped filter ports and they are set one-to-one. The large-diameter end of the conical centrifugal dehydration grid (29) faces the mounting cylinder (27), and the large-diameter end of the conical centrifugal dehydration grid (29) is connected to the inner wall of the purification cylinder (1).

5. The ultragravity wet oil and dust removal equipment according to claim 4, characterized in that, The filtration mechanism also includes a fan blade (31) and a conical plate (32); the fan blade (31) is mounted on the output shaft of the other end of the dual-shaft motor (28), the fan blade (31) is located inside the mounting cylinder (27), the end of the mounting cylinder (27) away from the large-diameter mixing impeller (6) is open, the conical plate (32) is mounted at the open end of the mounting cylinder (27), and the tip of the conical plate (32) faces the fan blade (31). The purification cylinder (1) is equipped with a vent pipe (34) that communicates with the inside of the installation cylinder (27).

6. The ultragravity wet oil and dust removal equipment according to claim 5, characterized in that, It also includes guide vanes (33); there are multiple guide vanes (33), and the multiple guide vanes (33) are arranged in a ring array on the outer periphery of the mounting cylinder (27).

7. The ultragravity wet oil and dust removal equipment according to claim 6, characterized in that, Multiple guide vanes (33) are arranged at an angle on the outer periphery of the mounting cylinder (27), and multiple strip filter ports are arranged at an angle on the conical centrifugal dewatering grid (29), with the angle of the strip filter ports being opposite to that of the guide vanes (33).

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