Coagulation dissolved air flotation device

Abstract

The utility model relates to dissolved air flotation technical field discloses a coagulation dissolved air flotation device, including the bottom plate, the bottom plate top fixedly connected with the air float box, the air float box inner wall both sides are rotatably connected with the stirring rod, the stirring rod outer wall is fixedly connected with a plurality of stirring vane, a plurality of air jets are fixedly connected with the stirring vane top, the air float box bottom end both sides are fixedly connected with the support frame, the support frame inner wall rear side is fixedly connected with the pipe head. In the utility model, the stirring vane and air jet are driven to rotate through the stirring rod, the sewage is stirred, the air pump is started simultaneously, the air pump supplies the gas to the pipe head through the connecting pipe and the shunt pipe, the gas enters the stirring rod through the pipe head, and finally is sprayed through the air jet, forms the micro air bubble, and the micro air bubble combines with the suspended solids and pollutants in the sewage, makes it float to the water surface, can more fully contact with the suspended solids and pollutants in the sewage, improves the sewage treatment efficiency.

Description

Technical Field

[0001] This utility model relates to the field of dissolved air flotation technology, and in particular to a coagulation dissolved air flotation device. Background Technology

[0002] Coagulation dissolved air flotation (DAF) devices are a type of high-efficiency wastewater treatment equipment. Their core principle is to combine coagulation technology with dissolved air flotation technology, using the adsorption effect of microbubbles to achieve solid-liquid separation of suspended solids and pollutants.

[0003] In existing technologies, during the dissolved air flotation step, the microbubbles released by the dissolved air water adsorb the flocs and cause them to float to the surface. However, in the process of using some existing dissolved air flotation mixing devices, the dissolved air water can only randomly come into contact with some impurities through the water flow generated by the dissolved air water, resulting in limited overall wastewater treatment efficiency.

[0004] In response to this technical problem, this application proposes a coagulation dissolved air flotation device. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a coagulation dissolved air flotation device. A drive gear rotates, which in turn drives a stirring rod. The stirring rod, in turn, drives the stirring blades and the jet nozzle to rotate, thus agitating the wastewater. Simultaneously, an air pump is activated, supplying air to the nozzle through a connecting pipe and a branch pipe. The gas enters the stirring rod through the nozzle and is finally ejected through the jet nozzle, forming microbubbles. These microbubbles combine with suspended solids and pollutants in the wastewater, causing them to float to the surface. This allows for more thorough contact with the suspended solids and pollutants in the wastewater, improving wastewater treatment efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A coagulation dissolved air flotation device includes a base plate, a flotation box fixedly connected to the top of the base plate, stirring rods rotatably connected to both sides of the inner wall of the flotation box, multiple stirring blades fixedly connected to the outer wall of the stirring rods, multiple jet nozzles fixedly connected to the top of the stirring blades, support frames fixedly connected to both sides of the bottom of the flotation box, a pipe head fixedly connected to the rear side of the inner wall of the support frame, the bottom of the stirring rods rotatably connected to the top of the pipe head, rotating components provided on both sides of the bottom of the flotation box, an air supply component provided in the middle of the top of the base plate, support seats fixedly connected to both sides of the top of the flotation box, a sliding rod fixedly connected to the inner wall of the rear support seat, a movable seat slidably connected to the outer wall of the sliding rod, a driving component provided at the front end of the front support seat, a connecting frame provided on the inner wall of the movable seat, a filter screen fixedly connected to the inner wall of the connecting frame, fixing components provided on both sides of the inner wall of the movable seat, a collection box fixedly connected to the top of the left end of the flotation box, an inlet pipe fixedly connected to the left end of the flotation box, and an outlet pipe fixedly connected to the right end of the flotation box.

[0008] Furthermore, the rotating assembly includes rotating rods rotatably connected to both sides of the bottom end of the air flotation tank. A driving gear is fixedly connected to the bottom side of the outer wall of the rotating rod, and a driven gear is fixedly connected to the bottom side of the outer wall of the stirring rod. The driving gear and the driven gear mesh with each other.

[0009] Furthermore, a pulley is fixedly connected to the top side of the outer wall of the rotating rod, and the two pulleys on both sides are connected by the inner wall of the transmission belt.

[0010] Furthermore, a first motor is fixedly connected to the bottom end of the support frame on the left, the bottom end of the rotating rod on the left is fixedly connected to the drive end of the first motor, and the outer wall of the bottom end of the rotating rod on the right is rotatably connected to the inner wall of the support frame on the right.

[0011] Furthermore, the air supply assembly includes an air pump fixedly connected to the top center of the base plate, a connecting pipe fixedly connected to the top of the air pump, a diverter pipe fixedly connected to the top of the connecting pipe, and the other end of the diverter pipe fixedly connected to the bottom end of the pipe head.

[0012] Furthermore, the drive assembly includes a threaded rod rotatably connected to the inner wall of the front support seat, and a second motor is fixedly connected to the right end of the front support seat. The right end of the threaded rod is fixedly connected to the drive end of the second motor.

[0013] Furthermore, the fixing component includes fixing blocks that are slidably connected to both sides of the inner wall of the movable seat. A pull plate is fixedly connected to the top of the fixing block. The fixing block is connected to the inner wall of the movable seat by a spring. The inner wall of the connecting frame is provided with a fixing groove, and the fixing block corresponds to the fixing groove.

[0014] Furthermore, one end of the spring is connected to the fixed block, and the other end of the spring is connected to the inner wall of the movable seat.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, the driven gear drives the driven gear to rotate, the driven gear drives the stirring rod to rotate, and the stirring rod drives the stirring blades and the jet nozzle to rotate, thus stirring the sewage. At the same time, the air pump is started, and the air pump supplies air into the pipe head through the connecting pipe and the branch pipe. The gas enters the stirring rod through the pipe head and is finally ejected through the jet nozzle to form microbubbles. The microbubbles combine with suspended solids and pollutants in the sewage, causing them to float to the water surface, which can more fully contact the suspended solids and pollutants in the sewage and improve the sewage treatment efficiency.

[0017] 2. In this utility model, by pulling the pull plate, the pull plate drives the fixing block to move, the fixing block compresses the spring, and the fixing block is moved out of the fixing groove, so that the connecting frame and filter screen can be taken out from the moving seat for cleaning and replacement. Attached Figure Description

[0018] Figure 1 This is a perspective view of a coagulation dissolved air flotation device proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the transmission belt in a coagulation dissolved air flotation device proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the stirring blade in a coagulation dissolved air flotation device proposed in this utility model;

[0021] Figure 4 This is a schematic diagram of the filter screen in a coagulation dissolved air flotation device proposed in this utility model.

[0022] Legend:

[0023] 1. Base plate; 2. Flotation tank; 3. Stirring rod; 4. Stirring blade; 5. Jet nozzle; 6. Support frame; 7. First motor; 8. Rotating rod; 9. Drive gear; 10. Driven gear; 11. Pulley; 12. Transmission belt; 13. Air pump; 14. Connecting pipe; 15. Diverter pipe; 16. Pipe head; 17. Support base; 18. Slide rod; 19. Moving base; 20. Second motor; 21. Threaded rod; 22. Water outlet pipe; 23. Connecting frame; 24. Filter screen; 25. Fixing block; 26. Pull plate; 27. Spring; 28. Collection box; 29. ​​Water inlet pipe. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Reference Figures 1-3 This utility model provides an embodiment of a coagulation dissolved air flotation device, comprising a base plate 1, a flotation box 2 fixedly connected to the top of the base plate 1, stirring rods 3 rotatably connected to both sides of the inner wall of the flotation box 2, multiple stirring blades 4 fixedly connected to the outer wall of the stirring rods 3, multiple jet nozzles 5 fixedly connected to the top of the stirring blades 4, support frames 6 fixedly connected to both sides of the bottom of the flotation box 2, a pipe head 16 fixedly connected to the rear side of the inner wall of the support frame 6, the bottom of the stirring rods 3 rotatably connected to the top of the pipe head 16, rotating rods 8 rotatably connected to both sides of the bottom of the flotation box 2, a driving gear 9 fixedly connected to the bottom side of the outer wall of the rotating rods 8, and a driven gear 10 fixedly connected to the bottom side of the outer wall of the stirring rods 3, the driving gear 9 and the driven gear 10... 10 mesh with each other. A pulley 11 is fixedly connected to the top side of the outer wall of the rotating rod 8. The two pulleys 11 are connected to each other through the inner wall of the transmission belt 12. The bottom end of the left support frame 6 is fixedly connected to the first motor 7. The bottom end of the left rotating rod 8 is fixedly connected to the drive end of the first motor 7. The bottom end of the right rotating rod 8 is rotatably connected to the inner wall of the right support frame 6. The top center of the bottom plate 1 is fixedly connected to the air pump 13. The top end of the air pump 13 is fixedly connected to the connecting pipe 14. The top end of the connecting pipe 14 is fixedly connected to the diverter pipe 15. The other end of the diverter pipe 15 is fixedly connected to the bottom end of the pipe head 16. The left end of the air flotation box 2 is fixedly connected to the inlet pipe 29. The right end of the air flotation box 2 is fixedly connected to the outlet pipe 22.

[0026] Specifically, wastewater is injected into the flotation tank 2 through the inlet pipe 29, and the first motor 7 is started. The drive end of the first motor 7 drives the left rotating rod 8 to rotate, and the left rotating rod 8 drives the right rotating rod 8 to rotate through the transmission belt 12. The two rotating rods 8 work together to drive the drive gear 9 to rotate, and the drive gear 9 in turn drives the driven gear 10 to rotate. The rotation of the driven gear 10 drives the stirring rod 3 to rotate, and the stirring rod 3 drives the stirring blade 4 and the jet nozzle 5 to rotate together, thereby stirring the wastewater. At the same time, the air pump 13 is started, and the air pump 13 supplies air to the pipe head 16 through the connecting pipe 14 and the diversion pipe 15. The gas enters the stirring rod 3 through the pipe head 16 and is finally ejected through the jet nozzle 5 to form microbubbles. These microbubbles combine with suspended solids and pollutants in the wastewater, causing them to float to the surface.

[0027] Reference Figure 1 and Figure 4The air flotation box 2 has support seats 17 fixedly connected to both sides of the top. The inner wall of the rear support seat 17 is fixedly connected to a slide rod 18. The outer wall of the slide rod 18 is slidably connected to a movable seat 19. The inner wall of the front support seat 17 is rotatably connected to a threaded rod 21. The right end of the front support seat 17 is fixedly connected to a second motor 20. The right end of the threaded rod 21 is fixedly connected to the drive end of the second motor 20. The inner wall of the movable seat 19 is provided with a connecting frame 23. The inner wall of the connecting frame 23 is fixedly connected to a filter screen 24. The inner walls of the movable seat 19 are slidably connected to fixed blocks 25. The top of the fixed blocks 25 is fixedly connected to a pull plate 26. The fixed blocks 25 and the inner wall of the movable seat 19 are connected by a spring 27. The inner wall of the connecting frame 23 is provided with a fixing groove. The fixed blocks 25 correspond to the fixing groove. One end of the spring 27 is connected to the fixed block 25. The other end of the spring 27 is connected to the inner wall of the movable seat 19. The top side of the left end of the air flotation box 2 is fixedly connected to a collection box 28.

[0028] Specifically, the second motor 20 is started, and its drive end rotates the threaded rod 21, causing the movable seat 19 to slide along the slide bar 18. The movement of the movable seat 19 moves the connecting frame 23 and the filter screen 24, effectively intercepting floating suspended matter and pollutants, which eventually fall into the collection box 28. When the filter screen 24 needs to be cleaned or replaced, the pull plate 26 is pulled. This action causes the fixing block 25 to move and compresses the spring 27, thereby removing the fixing block 25 from the fixing groove, making it easy to remove the connecting frame 23 and the filter screen 24 from the movable seat 19 for necessary cleaning and replacement.

[0029] Working principle: In use, sewage is first injected into the flotation tank 2 through the inlet pipe 29. The first motor 7 is started. The drive end of the first motor 7 drives the left rotating rod 8 to rotate. The left rotating rod 8 drives the right rotating rod 8 to rotate through the transmission belt 12. The left rotating rod 8 and the right rotating rod 8 drive the drive gear 9 to rotate. The drive gear 9 drives the driven gear 10 to rotate. The driven gear 10 drives the stirring rod 3 to rotate. The stirring rod 3 drives the stirring blade 4 and the jet nozzle 5 to rotate, stirring the sewage. At the same time, the air pump 13 is started. The air pump 13 supplies air to the pipe head 16 through the connecting pipe 14 and the diversion pipe 15. The gas enters the stirring rod 3 through the pipe head 16 and is finally sprayed out through the jet nozzle 5 to form microbubbles. The microbubbles combine with the suspended solids and pollutants in the sewage, causing them to float to the surface.

[0030] Start the second motor 20. The drive end of the second motor 20 drives the threaded rod 21 to rotate. The threaded rod 21 drives the movable seat 19 to slide on the slide rod 18. The movable seat 19 drives the connecting frame 23 and the filter screen 24 to move, intercepting the floating suspended matter and pollutants, which finally fall into the collection box 28 for collection. When it is necessary to clean and replace the filter screen 24, pull the pull plate 26. The pull plate 26 drives the fixing block 25 to move. The fixing block 25 compresses the spring 27, and the fixing block 25 is removed from the fixing groove. Then the connecting frame 23 and the filter screen 24 can be taken out from the movable seat 19 for cleaning and replacement.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A coagulation dissolved air flotation device, characterized in that: The system includes a base plate (1), a flotation box (2) fixedly connected to the top of the base plate (1), stirring rods (3) rotatably connected to both sides of the inner wall of the flotation box (2), multiple stirring blades (4) fixedly connected to the outer wall of the stirring rods (3), multiple jet nozzles (5) fixedly connected to the top of the stirring blades (4), a support frame (6) fixedly connected to both sides of the bottom of the flotation box (2), a pipe head (16) fixedly connected to the rear side of the inner wall of the support frame (6), the bottom of the stirring rods (3) rotatably connected to the top of the pipe head (16), rotating components are provided on both sides of the bottom of the flotation box (2), and an air supply component is provided in the middle of the top of the base plate (1). Support seats (17) are fixedly connected to both sides of the top. A sliding rod (18) is fixedly connected to the inner wall of the rear support seat (17). A movable seat (19) is slidably connected to the outer wall of the sliding rod (18). A driving component is provided at the front end of the front support seat (17). A connecting frame (23) is provided on the inner wall of the movable seat (19). A filter screen (24) is fixedly connected to the inner wall of the connecting frame (23). Fixing components are provided on both sides of the inner wall of the movable seat (19). A collection box (28) is fixedly connected to the top side of the left end of the air flotation box (2). An inlet pipe (29) is fixedly connected to the left end of the air flotation box (2). An outlet pipe (22) is fixedly connected to the right end of the air flotation box (2).

2. The coagulation dissolved air flotation device according to claim 1, characterized in that: The rotating assembly includes rotating rods (8) rotatably connected to both sides of the bottom end of the air flotation box (2). A drive gear (9) is fixedly connected to the bottom side of the outer wall of the rotating rod (8), and a driven gear (10) is fixedly connected to the bottom side of the outer wall of the stirring rod (3). The drive gear (9) and the driven gear (10) mesh with each other.

3. The coagulation dissolved air flotation device according to claim 2, characterized in that: A pulley (11) is fixedly connected to the top side of the outer wall of the rotating rod (8), and the two pulleys (11) are connected to each other through the inner wall of the transmission belt (12).

4. The coagulation dissolved air flotation device according to claim 3, characterized in that: The bottom end of the support frame (6) on the left is fixedly connected to the first motor (7), the bottom end of the rotating rod (8) on the left is fixedly connected to the drive end of the first motor (7), and the outer wall of the bottom end of the rotating rod (8) on the right is rotatably connected to the inner wall of the support frame (6) on the right.

5. The coagulation dissolved air flotation device according to claim 1, characterized in that: The gas supply assembly includes an air pump (13) fixedly connected to the top center of the base plate (1), a connecting pipe (14) fixedly connected to the top of the air pump (13), a diverter pipe (15) fixedly connected to the top of the connecting pipe (14), and the other end of the diverter pipe (15) fixedly connected to the bottom end of the pipe head (16).

6. The coagulation dissolved air flotation device according to claim 1, characterized in that: The drive assembly includes a threaded rod (21) rotatably connected to the inner wall of the front support (17). A second motor (20) is fixedly connected to the right end of the front support (17), and the right end of the threaded rod (21) is fixedly connected to the drive end of the second motor (20).

7. The coagulation dissolved air flotation device according to claim 1, characterized in that: The fixing component includes fixing blocks (25) that are slidably connected to both sides of the inner wall of the movable seat (19). A pull plate (26) is fixedly connected to the top of the fixing block (25). The fixing block (25) is connected to the inner wall of the movable seat (19) by a spring (27). The inner wall of the connecting frame (23) is provided with a fixing groove, and the fixing block (25) corresponds to the fixing groove.

8. The coagulation dissolved air flotation device according to claim 7, characterized in that: One end of the spring (27) is connected to the fixed block (25), and the other end of the spring (27) is connected to the inner wall of the movable seat (19).

Images