An industrial wastewater recycling device

Abstract

This invention relates to the field of wastewater treatment, and more particularly to an industrial wastewater recovery device, comprising a flotation tank. Two plate shafts are symmetrically and rotatably mounted in the middle of the inner side of the flotation tank. Three bubble-pushing plates are fixedly mounted in a circular array on the outer surface of the plate shafts. Two jet pipes are symmetrically and fixedly mounted at the bottom inner side of the flotation tank. The plate shafts are located above the jet pipes. A fixing seat is provided on the side of the plate shafts. Both ends of the fixing seat are fixed to the inner wall of the flotation tank. A fan-shaped shell is connected to one side of the fixing seat. The upper and lower ends of the fan-shaped shell are open. One of the bubble-pushing plates extends into the interior of the fan-shaped shell. A microporous plate covers the upper end of the fan-shaped shell. This invention increases the probability of collision between bubbles and oil droplets in the wastewater, improves the oil droplet flotation effect, and thus improves the wastewater treatment effect. Simultaneously, it avoids the bubble-pushing plates being obstructed by the microporous plate, ensuring that the bubbles are smoothly propelled.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment, and more particularly to an industrial wastewater recycling device. Background Technology

[0002] Industrial wastewater refers to all types of wastewater generated during industrial production. Industrial wastewater is characterized by its complex composition and high pollutant concentration. If discharged directly without treatment, it will cause serious harm to water bodies, soil, and the ecological environment. Therefore, industrial wastewater needs to be recycled and treated before being discharged.

[0003] When removing floating oil from oily wastewater, flotation is typically used to allow oil droplets to rise and float on the surface for scraping. During this process, air bubbles are introduced to increase buoyancy and promote oil removal. However, in practice, these bubbles collide and merge into larger bubbles as they rise. Larger bubbles rise rapidly due to increased buoyancy, reducing the probability of collisions with oil droplets. Furthermore, the number of merged bubbles decreases, further reducing the likelihood of collisions. Reduced contact between bubbles and oil droplets leads to poor oil droplet buoyancy and ultimately affects the wastewater treatment outcome. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of the prior art by proposing an industrial wastewater recycling device.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: an industrial wastewater recycling device, comprising a flotation tank, two plate shafts symmetrically and rotatably mounted in the middle of the inner side of the flotation tank, three bubble-pushing plates fixedly mounted in a ring array on the outer surface of the plate shafts, two jet pipes symmetrically and fixedly mounted at the bottom inner side of the flotation tank, the plate shafts being located above the jet pipes, a fixing seat being provided on the side of the plate shafts, the two ends of the fixing seat being fixed to the inner wall of the flotation tank, a fan-shaped shell being connected to one side of the fixing seat, the upper and lower ends of the fan-shaped shell being open, one of the bubble-pushing plates extending into the interior of the fan-shaped shell, a microporous plate covering the upper end of the fan-shaped shell, a flipping rod being installed at the upper end of the fixing seat, the microporous plate being connected to the flipping rod, a water-pushing component being provided on the other side of the fixing seat, the water-pushing component being connected to the flipping rod, and an oil-scraping component being provided at the upper end of the flotation tank.

[0006] Preferably, the front and rear ends of the fan-shaped shell are fixedly installed with shell claws, the ends of the shell claws are fixed to the fixed base, both ends of the flipping rod are rotatably installed with rod seats, the lower end of the rod seats is fixed to the fixed base, and two plate ears extend symmetrically from the upper edge of the microporous plate, the ends of the plate ears are fixed to the flipping rod.

[0007] Preferably, the rear ends of both plate shafts extend through the rear end of the flotation cell, a motor base is fixedly installed at the lower edge of the rear end of the flotation cell, a drive motor is fixedly installed at the upper end of the motor base, and a synchronous belt is connected between the output end of the drive motor and the rear ends of the two plate shafts through a pulley.

[0008] Preferably, two jet pipes extend from the rear end of the flotation cell, and the ends of the two jet pipes are fixedly connected to air guide pipes. An outlet is provided through the lower part of one side of the flotation cell, and an inlet is provided through the upper part of the other side of the flotation cell.

[0009] Preferably, the water-pushing component includes a support column disposed on the other side of the fixed base. Pushing plates are disposed above and below the support column. Two curved fork frames are symmetrically embedded on the outer surface of the support column. The ends of the curved fork frames are connected to pushing frames, and the ends of the pushing frames are connected to straight fork frames. The straight fork frames are embedded in the outer surface of the flipping rod. The support column is elastically connected to the inner wall of the flotation tank.

[0010] Preferably, two connecting plates are symmetrically fixedly installed on the opposite surfaces of the two propulsion plates. The ends of the connecting plates are fixed to the bearing columns. A lower connecting shaft is rotatably installed through the lower end of the propulsion frame and is embedded through the end of the bent fork frame. An upper connecting shaft is rotatably installed through the upper end of the propulsion frame and is embedded through the end of the straight fork frame.

[0011] Preferably, a reset rod is fixedly installed at both ends of the bearing column, a bearing guide shell is slidably installed on the outer surface of the reset rod, the bearing guide shell is fixed to the inner wall of the flotation cell, a rod cap is coaxially embedded at the end of the reset rod, the rod cap is slidably installed inside the bearing guide shell, a reset spring is wound around the outside of the reset rod, one end of the reset spring is fixed to the inner side of the bearing guide shell, and the other end of the reset spring is fixed to the rod cap.

[0012] Preferably, the oil scraping component includes a frame symmetrically fixedly installed at the upper edge of the front end of the flotation cell. A servo slide is fixedly installed at the upper end of the frame, and a scraper is fixedly installed on the slide of the servo slide. The scraper is located at the upper inner edge of the flotation cell, and both upper edges of the flotation cell are fixedly connected to an outlet groove.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The bubble-pushing plate, driven by the plate shaft and rotating at a low speed, can push the bubbles in the water, allowing them to enter the fan-shaped shell and be forced to pass through the micropores on the microporous plate. This causes the fused large bubbles to be sheared and split as they pass through the micropores, thus reducing buoyancy and increasing the number of bubbles. This increases the probability of the bubbles colliding with oil droplets in the wastewater, improves the oil droplet floating effect, and ultimately improves the wastewater treatment effect.

[0015] 2. When the bubble pusher plate comes into contact with the microporous plate while pushing the bubbles, the continued rotation of the bubble pusher plate will push the microporous plate, causing it to flip around the flipping rod to open. This allows the bubble pusher plate to pass smoothly through the microporous plate and continue rotating, thus avoiding obstruction by the microporous plate and ensuring that the bubbles are pushed smoothly. When the microporous plate flips, the rotating flipping rod will drive the straight fork to rotate, which in turn drives the pusher plate to move, pushing the curved fork to move the pusher plate laterally. At the same time, the reset rod slides in the bearing guide shell, and the reset spring contracts. When the bubble pusher plate passes the microporous plate, the reset spring will restore its deformation, allowing the flipped microporous plate to reset and cover the fan-shaped shell again. At the same time, the pusher plate moves laterally in the opposite direction. This drives the pusher plate to swing left and right simultaneously during the opening and closing of the microporous plate, pushing the wastewater toward the location of the bubbles, further increasing the probability of collision between the bubbles and oil droplets in the wastewater. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an industrial wastewater recycling device according to the present invention;

[0017] Figure 2 This is a schematic diagram from another perspective of an industrial wastewater recycling device according to the present invention;

[0018] Figure 3 This is an internal view of the flotation tank of an industrial wastewater recovery device according to the present invention;

[0019] Figure 4 This is a schematic diagram of the bubble pusher plate of an industrial wastewater recycling device according to the present invention;

[0020] Figure 5 This is a schematic diagram of the bubble pusher plate of an industrial wastewater recycling device according to the present invention from another perspective.

[0021] Figure 6 This invention relates to an industrial wastewater recycling device. Figure 4 Enlarged view of A in the middle;

[0022] Figure 7 This is an exploded view of the bubble pusher plate and the fan-shaped shell of an industrial wastewater recycling device according to the present invention.

[0023] Figure 8This is an internal view of the support guide shell of an industrial wastewater recycling device according to the present invention.

[0024] In the diagram: 1. Flotation cell; 2. Inlet; 3. Jet pipe; 4. Air guide pipe; 5. Pusher plate; 6. Outlet; 7. Plate shaft; 8. Drive motor; 9. Synchronous belt; 10. Fixed base; 11. Bubble pusher plate; 12. Bearing guide shell; 13. Bent fork frame; 14. Lower connecting shaft; 15. Pusher frame; 16. Upper connecting shaft; 17. Straight fork frame; 18. Tilting rod; 19. Microporous plate; 20. Plate lug; 21. Bearing column; 22. Return spring; 23. Return rod; 24. Rod cap; 25. Fan-shaped shell; 26. Shell claw; 27. Rod connector seat; 28. Motor base; 29. ​​Platform; 30. Servo slide; 31. Scraper; 32. Outlet groove; 33. Connecting plate. Detailed Implementation

[0025] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0026] like Figures 1-8 The industrial wastewater recycling device shown includes a flotation tank 1. Two plate shafts 7 are symmetrically and rotatably installed in the middle of the inner side of the flotation tank 1. Three bubble-pushing plates 11 are fixedly installed in a ring array on the outer surface of the plate shafts 7. The plate shafts 7 drive the bubble-pushing plates 11 to rotate at a low speed. Two jet pipes 3 are symmetrically and fixedly installed at the bottom of the inner side of the flotation tank 1. Gas can be discharged from the air holes on the jet pipes 3 to form bubbles, thereby increasing the buoyancy of oil droplets in the wastewater under the action of the bubbles, so as to promote the oil droplets to float. The plate shafts 7 are located above the jet pipes 3. A fixing seat 10 is provided on the side of the plate shafts 7. The fixing seat 10 serves to fix the oil droplets. Both ends of the fixing seat 10 are fixed to the inner wall of the flotation tank 1. A fan-shaped shell 25 is connected to one side of the fixing seat 10. The upper and lower ends of the fan-shaped shell 25 are open. The fan-shaped shell 25 serves to collect the oil droplets. The bubble-pushing plate 11 extends into the interior of the fan-shaped shell 25. The upper end of the fan-shaped shell 25 is covered with a microporous plate 19. The upper end of the fixed base 10 is equipped with a flipping rod 18, which allows the microporous plate 19 to rotate. The microporous plate 19 is connected to the flipping rod 18. The bubble-pushing plate 11, which is driven by the plate shaft 7 and rotates at a low speed, pushes the bubbles in the water, allowing them to enter the fan-shaped shell 25 and force them to pass through the micropores on the microporous plate 19. This causes the fused large bubbles to be sheared and split when passing through the micropores, causing the fused large bubbles to split back into multiple tiny bubbles, thereby reducing buoyancy and increasing the number of bubbles. This increases the probability of the bubbles colliding with the oil droplets in the wastewater and improves the effect of oil droplet floating. A water-pushing component is provided on the other side of the fixed base 10, which is connected to the flipping rod 18. An oil-scraping component is provided at the upper end of the flotation tank 1.

[0027] Both ends of the fan-shaped shell 25 are fixedly equipped with shell claws 26. The ends of the shell claws 26 are fixed to the fixed base 10. The shell claws 26 serve to fix the fan-shaped shell 25. Both ends of the flipping rod 18 are rotatably equipped with rod receiving seats 27. The lower end of the rod receiving seat 27 is fixed to the fixed base 10. The rod receiving seat 27 serves to support the flipping rod 18. Two plate connecting ears 20 extend symmetrically from the upper edge of the microporous plate 19. The ends of the plate connecting ears 20 are fixed to the flipping rod 18. The plate connecting ears 20 serve to fix the microporous plate 19 and the flipping rod 18 together.

[0028] The rear ends of both plate shafts 7 extend through the rear end of the flotation cell 1. A motor base 28 is fixedly installed at the lower edge of the rear end of the flotation cell 1. A drive motor 8 is fixedly installed at the upper end of the motor base 28. The motor base 28 serves to fix the drive motor 8. The drive motor 8 drives the two plate shafts 7 to rotate. A synchronous belt 9 is connected between the output end of the drive motor 8 and the rear ends of the two plate shafts 7 through a pulley. The synchronous belt 9 serves to connect the output end of the drive motor 8 and the two plate shafts 7 together.

[0029] Two jet pipes 3 extend from the rear end of the flotation cell 1. The ends of the two jet pipes 3 are fixedly connected to air guide pipes 4, which guide gas into the jet pipes 3. The end of the air guide pipes 4 can be connected to an air compressor, etc., to improve the continuous air supply. An outlet 6 is provided through the lower part of one side of the flotation cell 1, which is used to inject wastewater into the flotation cell 1. An inlet 2 is provided through the upper part of the other side of the flotation cell 1, which is used to discharge wastewater from the flotation cell 1.

[0030] The water-pushing component includes a support column 21 located on the other side of the fixed base 10. Pusher plates 5 are installed above and below the support column 21. The support column 21 supports the pusher plates 5, which push the wastewater towards the location of the air bubbles, increasing the probability of collision between the air bubbles and oil droplets in the wastewater. Two curved fork brackets 13 are symmetrically embedded on the outer surface of the support column 21. Pusher frames 15 are connected to the ends of the curved fork brackets 13, and straight fork brackets 17 are connected to the ends of the pusher frames 15. The straight fork brackets 17 are embedded in the outer surface of the flipping rod 18. The support column 21 is elastically connected to the inner wall of the flotation tank 1. (Micropores) When plate 19 is flipped, the rotating flipping rod 18 drives the straight fork frame 17 to rotate, which in turn drives the pusher frame 15 to move, pushing the bent fork frame 13 so that the pusher plate 5 can move laterally. At the same time, the reset rod 23 slides in the bearing guide shell 12 and the reset spring 22 contracts. When the bubble pusher plate 11 passes the microporous plate 19, the reset spring 22 will restore its deformation, allowing the flipped microporous plate 19 to reset and cover the fan-shaped shell 25 again. At the same time, the pusher plate 5 moves laterally in the opposite direction. In this way, the pusher plate 5 is driven to swing left and right in sync during the opening and closing of the microporous plate 19, so as to push the wastewater toward the location of the bubbles.

[0031] Two connecting plates 33 are symmetrically fixedly installed on the opposite surfaces of the two pusher plates 5. The ends of the connecting plates 33 are fixed to the bearing columns 21. The connecting plates 33 serve to fix the pusher plates 5 and the bearing columns 21 together. The lower end of the pusher frame 15 is rotatably mounted with a lower connecting shaft 14. The lower connecting shaft 14 is embedded in the end of the bent fork frame 13. The lower connecting shaft 14 serves to facilitate the connection between the pusher frame 15 and the bent fork frame 13. The upper end of the pusher frame 15 is rotatably mounted with an upper connecting shaft 16. The upper connecting shaft 16 is embedded in the end of the straight fork frame 17. The upper connecting shaft 16 serves to facilitate the connection between the pusher frame 15 and the straight fork frame 17.

[0032] Both ends of the support column 21 are fixedly installed with reset rods 23. The outer surface of the reset rod 23 is slidably installed with a support guide shell 12. The reset rod 23 and the support guide shell 12 serve to guide the support column 21. The support guide shell 12 is fixed to the inner wall of the flotation cell 1. The end of the reset rod 23 is coaxially embedded with a rod cap 24. The rod cap 24 is slidably installed inside the support guide shell 12. The outside of the reset rod 23 is wound with a reset spring 22. The rod cap 24 is pushed by the reset spring 22. One end of the reset spring 22 is fixed to the inner side of the support guide shell 12, and the other end of the reset spring 22 is fixed to the rod cap 24. The reset spring 22 restores its deformation, which can reset the flipped microporous plate 19 so that it can be re-covered on the fan-shaped shell 25, and at the same time, it can cause the pusher plate 5 to move in the opposite direction.

[0033] The oil scraping device includes a frame 29 symmetrically fixedly installed at the upper edge of the front end of the flotation cell 1. A servo slide 30 is fixedly installed at the upper end of the frame 29, and the frame 29 serves to fix the servo slide 30. A scraper 31 is fixedly installed on the slide of the servo slide 30. The scraper 31 is located at the upper edge of the inner side of the flotation cell 1. The servo slide 30 will drive the scraper 31 to move on the water surface to scrape the oil on the water surface into the discharge channel 32 for discharge. The discharge channels 32 are fixedly connected to the upper edges of both sides of the flotation cell 1. The discharge channels 32 can guide the oil on the water surface for discharge.

[0034] During treatment, oily wastewater is injected into flotation tank 1 through inlet 2. Gas then enters jet pipe 3 through gas guide pipe 4 and exits through vents on jet pipe 3, forming bubbles. These bubbles increase the buoyancy of oil droplets in the wastewater, promoting their upward movement. During this process, drive motor 8 drives plate shaft 7 to rotate at low speed via synchronous belt 9. This, in turn, pushes the bubbles in the water through bubble pusher plate 11, which rotates at low speed driven by plate shaft 7. The bubbles are forced into the fan-shaped shell 25 and through the micropores on microporous plate 19, causing the fused large bubbles to be sheared and split as they pass through the micropores, thus reducing buoyancy and increasing the number of bubbles. This increases the probability of collision between the bubbles and oil droplets in the wastewater, improving the upward movement of the oil droplets. When bubble pusher plate 11 contacts microporous plate 19 while pushing the bubbles, its continued rotation pushes the microporous plate 19, causing it to rotate around the tilting rod 18. The microporous plate 11 is flipped open to allow it to pass smoothly through the microporous plate 19 and continue to rotate. Simultaneously, as the microporous plate 19 is flipped, the rotating flipping rod 18 drives the straight fork frame 17 to rotate, which in turn drives the flow pusher frame 15 to move, pushing the curved fork frame 13 and allowing the flow pusher plate 5 to move laterally. At the same time, the reset rod 23 slides within the bearing guide shell 12, and the reset spring 22 contracts. When the microporous plate 11 passes through the microporous plate 19, the reset spring 22 returns to its original shape, allowing the flipped microporous plate to continue rotating. Plate 19 is reset to cover the fan-shaped shell 25 again, and the pusher plate 5 is moved in the opposite direction. This drives the pusher plate 5 to swing left and right during the opening and closing of the microporous plate 19, so as to push the wastewater toward the location of the bubbles, thereby increasing the probability of collision between the bubbles and the oil droplets in the wastewater. After the oil droplets float to the surface, the servo slide 30 will drive the scraper 31 to move on the water surface to scrape the oil on the water surface into the discharge tank 32 for discharge. Then the outlet 6 can be opened to discharge the de-oiled wastewater.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. An industrial wastewater recycling device, comprising a flotation tank (1), characterized in that: Two plate shafts (7) are symmetrically and rotatably installed in the middle of the inner side of the flotation cell (1). Three bubble-pushing plates (11) are fixedly installed in a ring array on the outer surface of the plate shafts (7). Two jet pipes (3) are symmetrically and fixedly installed at the bottom of the inner side of the flotation cell (1). The plate shafts (7) are located above the jet pipes (3). A fixing seat (10) is provided on the side of the plate shafts (7). The two ends of the fixing seat (10) are fixed to the inner wall of the flotation cell (1). A fan-shaped shell is connected to one side of the fixing seat (10). 25), the upper and lower ends of the fan-shaped shell (25) are both open, one of the bubble-pushing plates (11) extends into the interior of the fan-shaped shell (25), the upper end of the fan-shaped shell (25) is covered with a microporous plate (19), the upper end of the fixed seat (10) is equipped with a flipping rod (18), the microporous plate (19) is connected to the flipping rod (18), the other side of the fixed seat (10) is provided with a water-pushing component, the water-pushing component is connected to the flipping rod (18), and the upper end of the flotation tank (1) is provided with an oil-scraping component; The water-pushing component includes a support column (21) set on the other side of the fixed base (10). Pushing plates (5) are set on both the upper and lower sides of the support column (21). Two curved fork frames (13) are symmetrically inlaid on the outer surface of the support column (21). The ends of the curved fork frames (13) are connected to the pusher frame (15). The ends of the pusher frame (15) are connected to the straight fork frame (17). The straight fork frame (17) is inlaid on the outer surface of the flipping rod (18). The support column (21) is elastically connected to the inner wall of the flotation tank (1). Two connecting plates (33) are symmetrically fixedly installed on the opposite surfaces of the two pusher plates (5). The ends of the connecting plates (33) are fixed to the bearing column (21). The lower end of the pusher frame (15) is rotatably installed with a lower connecting shaft (14). The lower connecting shaft (14) is embedded in the end of the bent fork frame (13). The upper end of the pusher frame (15) is rotatably installed with an upper connecting shaft (16). The upper connecting shaft (16) is embedded in the end of the straight fork frame (17). Both ends of the support column (21) are fixedly installed with reset rods (23). The outer surface of the reset rod (23) is slidably installed with a support guide shell (12). The support guide shell (12) is fixed to the inner wall of the flotation cell (1). The end of the reset rod (23) is coaxially inlaid with a rod cap (24). The rod cap (24) is slidably installed inside the support guide shell (12). The outside of the reset rod (23) is wound with a reset spring (22). One end of the reset spring (22) is fixed to the inner side of the support guide shell (12), and the other end of the reset spring (22) is fixed to the rod cap (24).

2. The industrial wastewater recovery device according to claim 1, characterized in that: The front and rear ends of the fan-shaped shell (25) are fixedly installed with shell claws (26), the ends of the shell claws (26) are fixed to the fixed seat (10), the two ends of the flipping rod (18) are rotatably installed with rod seats (27), the lower end of the rod seats (27) is fixed to the fixed seat (10), and two plate ears (20) extend symmetrically from the upper edge of the microporous plate (19), the ends of the plate ears (20) are fixed to the flipping rod (18).

3. The industrial wastewater recovery device according to claim 1, characterized in that: The rear ends of the two plate shafts (7) extend through the rear end of the flotation cell (1). A motor base (28) is fixedly installed at the lower rear edge of the flotation cell (1). A drive motor (8) is fixedly installed at the upper end of the motor base (28). A synchronous belt (9) is connected between the output end of the drive motor (8) and the rear ends of the two plate shafts (7) through a pulley.

4. The industrial wastewater recovery device according to claim 1, characterized in that: Two jet pipes (3) extend from the rear end of the flotation tank (1), and the ends of the two jet pipes (3) are fixedly connected to a gas guide pipe (4). A water outlet (6) is provided through the lower part of one side of the flotation tank (1), and a water inlet (2) is provided through the upper part of the other side of the flotation tank (1).

5. The industrial wastewater recovery device according to claim 1, characterized in that: The oil scraping component includes a frame (29) symmetrically fixedly installed at the upper edge of the front end of the flotation cell (1). A servo slide (30) is fixedly installed at the upper end of the frame (29). A scraper (31) is fixedly installed on the slide of the servo slide (30). The scraper (31) is located at the upper edge of the inner side of the flotation cell (1). Both upper edges of the flotation cell (1) are fixedly connected to the outlet groove (32).

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