Sewage treatment air floatation tank capable of quickly cleaning sediment at bottom

Abstract

The invention belongs to the field of air floatation tanks, particularly relates to a sewage treatment air floatation tank capable of quickly cleaning bottom silt, and aims to solve the problems that impurities removed by an existing air floatation tank are difficult to clean after being accumulated, meanwhile, the silt located at the bottom of the device cannot be discharged and needs to be manually scraped, and time and labor are wasted. The sewage treatment air floatation tank comprises an air floatation tank body, one side of the bottom of the air floatation tank body is obliquely arranged, a second rectangular hole is formed in the bottom of the air floatation tank body, and a water purification pipe fixedly communicates with the middle position of one side of the air floatation tank body. The effect of rapidly discharging surface suspended matters can be achieved, meanwhile, the discharged suspended matters can be rapidly sent out through the hollow box, secondary cleaning of workers is not needed, the effect of rapidly discharging bottom sludge can be achieved through the sewage discharging assembly, assistance of the workers is not needed, and the working efficiency of sewage discharging can be greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of flotation tanks, and in particular to a sewage treatment flotation tank capable of quickly cleaning bottom sediment. Background Art

[0002] Flotation tank refers to a tank that mainly uses a large number of microbubbles to capture and adsorb tiny particles of adhesives to make them float, thereby achieving the effect of solid-liquid separation. Flotation tank is another name for flotation machine. The north and south are called differently. Some call it flotation, flotation machine, flotation tank, and super-efficient shallow flotation. They all mainly use a large number of microbubbles to capture and adsorb tiny particles of adhesives to make them float, thereby achieving the effect of solid-liquid separation.

[0003] The existing flotation tank can remove impurities floating on the upper layer when in use, but the removed impurities accumulate and are difficult to clean. At the same time, the mud and sand at the bottom of the device cannot be discharged and needs to be scraped off manually, which is time-consuming and labor-intensive. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art that the flotation tank can remove impurities floating on the upper layer when in use, but the removed impurities are difficult to clean after accumulation, and the silt at the bottom of the device cannot be discharged and needs to be manually scraped off, which is time-consuming and laborious. A sewage treatment flotation tank is proposed which can realize rapid cleaning of the bottom silt.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A sewage treatment flotation tank capable of quickly cleaning bottom sediment comprises a flotation tank body, one side of the bottom of the flotation tank body is inclined, a second rectangular hole is opened at the bottom of the flotation tank body, and a clean water pipe is fixedly connected to the middle position of one side of the flotation tank body;

[0007] A dust box, the dust box is arranged at the bottom of the air flotation tank body, the top of the dust box is connected to the second rectangular hole, and the bottom of the dust box is provided with two symmetrically arranged sewage outlets for discharging impurities;

[0008] A first curved plate and a second curved plate are fixedly connected between the inner walls on both sides of the air flotation pool body, the second curved plate and the first curved plate are symmetrically arranged and respectively located on both sides of the second rectangular hole, the second curved plate is close to the side of the inclined surface of the air flotation pool body, and a same fixed partition is fixedly connected between the inner walls on both sides of the air flotation pool body, and the fixed partition is located on the side of the first curved plate away from the second curved plate;

[0009] A plurality of sewage discharge pipes, wherein the plurality of sewage discharge pipes are respectively fixedly connected to two sides of the dust box, and the sewage discharge pipes are used to discharge sewage;

[0010] A sewage discharge pipe and an air intake pipe, both of which are fixedly connected to one side of the top of the air flotation tank body through a fixing assembly, the sewage discharge pipe is used to feed sewage, and the air intake pipe is used to feed gas;

[0011] A sewage discharge assembly, which is arranged inside the second rectangular hole and is used to discharge bottom impurities;

[0012] A dust removal component is arranged on the top of the inner wall of the air flotation tank body and is used to scrape off suspended matter.

[0013] In a possible design, the sewage discharge assembly includes two side screen plates which are respectively slidably connected to the inner walls on both sides of the second rectangular hole, a groove is provided at the bottom of the side screen plate, and a plurality of second screen holes are provided inside the side screen plate. Four symmetrical limit rods are fixedly connected to the bottom inner wall of the dust box, and the outer wall sliding sleeves of the four limit rods are provided with the same supporting bottom plate, which is used in conjunction with the groove. The side screen plate sliding sleeves are provided on the two limit rods located on the same side, and the top of the limit rod is fixedly connected to the limiting block.

[0014] In a possible design, the sewage discharge assembly also includes two fixed inclined plates fixedly connected to the inner wall of the bottom of the dust box and symmetrically arranged, the fixed inclined plates are inclined, the top of the fixed inclined plates are used in conjunction with the bottom of the side screen plates, the bottom of the dust box is fixedly connected to an electric push rod, the piston rod of the electric push rod slides through the dust box and is fixedly connected to the bottom of the supporting bottom plate, and the top of the supporting bottom plate is fixedly connected to a triangular block.

[0015] In one possible design, the dust removal assembly includes two synchronous wheels rotatably connected between the inner walls on both sides of the flotation pool body, the outer wall transmission sleeves of the two synchronous wheels are provided with the same synchronous belt, and the outer wall of the synchronous belt is fixedly connected to a plurality of dust removal plates, and one side of the flotation pool body is fixedly connected to a first servo motor, and the output shaft of the first servo motor rotates through the flotation pool body and is fixedly connected to one end of one of the synchronous wheels.

[0016] In a possible design, the fixing assembly includes an upper pressure plate and a lower pressure plate fixedly connected to the top of the flotation tank body, the upper pressure plate is provided with two symmetrically arranged threaded holes inside, the top of the lower pressure plate is provided with two symmetrically arranged threaded grooves, the upper pressure plate and the lower pressure plate are fixedly connected by screws, and the upper pressure plate and the lower pressure plate are provided with arc grooves on the sides close to each other.

[0017] In one possible design, a first rectangular hole is opened inside one of the fixed inclined plates close to the inclined surface of the flotation pool body, a plurality of first sieve holes are opened on the inclined surface of the flotation pool body, a third rectangular hole is opened at the bottom of the flotation pool body, a hollow box is fixedly connected to the bottom of the flotation pool body, the top of the hollow box is connected to the bottom of the third rectangular hole, and the bottom of the hollow box is connected to the top of the first rectangular hole.

[0018] In a possible design, a plurality of arc-shaped holes are provided at the bottom of the fixed partition, a hollow tube is fixedly connected to the bottom of the air inlet pipe, and a plurality of aeration holes are provided on the outside of the hollow tube.

[0019] In a possible design, two symmetrically arranged I-frames are fixedly connected between one side of the fixed partition and the inner wall of one side of the flotation tank body, and a second servo motor is fixedly connected to the top of the I-frame. The output shaft of the second servo motor rotates through the I-frame and is fixedly connected to a stirring rod, and a plurality of stirring blades are fixedly sleeved on the outer wall of the stirring rod.

[0020] In the present application, when in use, sewage is fed into the device through the sewage discharge pipe, a flocculant and a coagulant aid are added to one side of the fixed partition, the second servo motor is started, the output shaft of the second servo motor drives the stirring rod to rotate, the stirring rod drives the plurality of stirring blades to rotate, and the stirring blades drive the sewage and the flocculant to perform an effective flocculation reaction;

[0021] Sewage flows into one side of the first arc-shaped plate through multiple arc-shaped holes, gas is introduced through the air inlet pipe, and the aeration process is completed through multiple hollow tubes. Microbubbles in the dissolved water adhere to the flocculated suspended matter, and the first servo motor is started. The output shaft of the first servo motor drives the synchronous wheel to rotate, the synchronous wheel drives the synchronous belt to rotate, and the synchronous belt drives multiple dust removal plates to rotate. The multiple dust removal plates push the suspended matter floating on the water surface to one side of the second arc-shaped plate, and the clean water is discharged through the clean water pipe;

[0022] The impurities on the water surface carry a small amount of water and impact on the inclined surface of the flotation tank body. At this time, after a small amount of sewage is discharged through the first sieve hole, the impurities enter the interior of the hollow box through the third rectangular hole and are finally discharged through the first rectangular hole and the sewage outlet, while the filtered sewage is discharged through multiple sewage discharge pipes;

[0023] Heavier impurities are deposited on the surface of the supporting bottom plate. When the bottom impurities need to be discharged, the device can be stopped and the electric push rod can be started. The piston rod of the electric push rod will be retracted. At this time, the piston rod of the electric push rod drives the supporting bottom plate to move vertically downward. The supporting bottom plate first drives the side screen plate to move vertically downward. At this time, the side screen plate is placed on the top of the electric push rod, and the sewage is discharged through the surface of the fixed inclined plate. After the discharge is completed, the supporting bottom plate continues to move downward. At this time, the impurities on the surface of the supporting bottom plate slide along the inclined surface of the triangular block and are quickly discharged.

[0024] Beneficial effects:

[0025] In the present invention, the sewage treatment flotation tank capable of quickly cleaning the bottom sediment can achieve the effect of quickly discharging the surface suspended matter through the dust removal component, and the discharged suspended matter can be quickly sent out through the hollow box, without the need for workers to perform secondary cleaning;

[0026] In the present invention, the sewage treatment flotation tank capable of quickly cleaning the bottom sediment can achieve the effect of quickly discharging the bottom sludge through the sewage discharge component, without the need for workers to assist, and can greatly improve the sewage discharge work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the three-dimensional structure of a sewage treatment flotation tank proposed by the present invention that can achieve rapid cleaning of bottom sediment;

[0028] Figure 2 A schematic diagram of the three-dimensional structure of a sewage treatment flotation tank proposed by the present invention, which can realize rapid cleaning of bottom sediment, from a second perspective;

[0029] Figure 3 A schematic diagram of the three-dimensional structure of an aeration pipe and a stirring rod in a sewage treatment flotation tank that can quickly clean up bottom sediments proposed by the present invention;

[0030] Figure 4 This is a schematic diagram of the explosion structure of an upper pressure plate and a lower pressure plate in a sewage treatment flotation tank that can achieve rapid cleaning of bottom sediment, as proposed by the present invention;

[0031] Figure 5 A schematic diagram of the three-dimensional structure of a dust removal plate in a sewage treatment flotation tank that can quickly clean bottom sediment, as proposed by the present invention;

[0032] Figure 6 A schematic diagram of a three-dimensional cross-sectional structure of a dust box of a sewage treatment flotation tank proposed by the present invention, which can realize rapid cleaning of bottom sediment;

[0033] Figure 7 This is a schematic diagram of the three-dimensional structure of the air flotation tank body in a sewage treatment air flotation tank that can quickly clean the bottom sediment proposed by the present invention;

[0034] Figure 8 The present invention is a schematic diagram of the explosion structure of the side sieve plate and the supporting bottom plate in a sewage treatment flotation tank which can realize rapid cleaning of bottom sediment.

[0035] In the figure: 1. flotation tank body; 2. water purification pipe; 3. dust box; 4. sewage discharge pipe; 5. first servo motor; 6. sewage discharge pipe; 7. fixed partition; 8. air inlet pipe; 9. dust removal plate; 10. synchronous belt; 11. first sieve hole; 12. second servo motor; 13. workpiece frame; 14. stirring blade; 15. stirring rod; 16. hollow tube; 17. aeration hole; 18. threaded hole; 19. upper pressure plate; 20. threaded groove ; 21. Lower pressure plate; 22. Synchronous wheel; 23. Side sieve plate; 24. Fixed inclined plate; 25. Sewage outlet; 26. Support bottom plate; 27. Electric push rod; 28. Hollow box; 29. ​​First rectangular hole; 30. Arc hole; 31. First arc plate; 32. Second rectangular hole; 33. Second arc plate; 34. Third rectangular hole; 35. Groove; 36. Second sieve hole; 37. Triangular block; 38. Limit rod; 39. Limit block. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0037] Example 1

[0038] Reference Figure 1-8 A sewage treatment flotation tank capable of quickly cleaning the bottom sediment is used in the field of flotation tanks, comprising: a flotation tank body 1, one side of the bottom of the flotation tank body 1 is inclined, a second rectangular hole 32 is opened at the bottom of the flotation tank body 1, and a clean water pipe 2 is fixedly connected to the middle position of one side of the flotation tank body 1;

[0039] The dust box 3 is arranged at the bottom of the air flotation tank body 1, the top of the dust box 3 is connected to the second rectangular hole 32, and the bottom of the dust box 3 is provided with two symmetrically arranged sewage outlets 25 for discharging impurities;

[0040] A first curved plate 31 and a second curved plate 33 are fixedly connected between the inner walls on both sides of the air flotation pool body 1. The second curved plate 33 and the first curved plate 31 are symmetrically arranged and are respectively located on both sides of the second rectangular hole 32. The second curved plate 33 is close to the side of the inclined surface of the air flotation pool body 1. A same fixed partition plate 7 is fixedly connected between the inner walls on both sides of the air flotation pool body 1. The fixed partition plate 7 is located on the side of the first curved plate 31 away from the second curved plate 33.

[0041] A plurality of sewage discharge pipes 4, wherein the plurality of sewage discharge pipes 4 are respectively fixedly connected to both sides of the dust box 3, and the sewage discharge pipes 4 are used to discharge sewage;

[0042] The sewage discharge pipe 6 and the air intake pipe 8 are both fixedly connected to one side of the top of the air flotation tank body 1 through a fixing assembly. The sewage discharge pipe 6 is used to feed sewage, and the air intake pipe 8 is used to feed gas. The fixing assembly includes an upper pressure plate 19 and a lower pressure plate 21 fixedly connected to the top of the air flotation tank body 1. Two symmetrically arranged threaded holes 18 are provided inside the upper pressure plate 19, and two symmetrically arranged threaded grooves 20 are provided on the top of the lower pressure plate 21. The upper pressure plate 19 and the lower pressure plate 21 are fixedly connected by screws, and arc grooves are provided on the sides of the upper pressure plate 19 and the lower pressure plate 21 that are close to each other;

[0043] A sewage discharge component is arranged inside the second rectangular hole 32 and is used to discharge impurities at the bottom. The sewage discharge component includes two side sieve plates 23 which are respectively slidably connected to the inner walls on both sides of the second rectangular hole 32. A groove 35 is provided at the bottom of the side sieve plate 23. A plurality of second sieve holes 36 are provided inside the side sieve plate 23. Four limiting rods 38 which are symmetrical in pairs are fixedly connected to the bottom inner wall of the dust box 3. The outer walls of the four limiting rods 38 are slidably sleeved with the same supporting bottom plate 26. The supporting bottom plate 26 is used in conjunction with the groove 35. The side sieve plates 23 are slidably sleeved on the two limiting rods 38 located on the same side. The top of the limiting rod 38 is fixedly connected to the limiting block 39. The sewage discharge component also includes two fixed inclined plates 24 which are fixedly connected to the inner wall of the bottom of the dust box 3 and are symmetrically arranged. The fixed inclined plates 24 are inclined. The top of the fixed inclined plates 24 is aligned with the side sieves. The bottom of the plate 23 is used in conjunction with the bottom of the dust box 3, and the bottom of the dust box 3 is fixedly connected with an electric push rod 27, the piston rod of the electric push rod 27 slides through the dust box 3 and is fixedly connected to the bottom of the supporting bottom plate 26, and the top of the supporting bottom plate 26 is fixedly connected with a triangular block 37, and heavier impurities are deposited on the surface of the supporting bottom plate 26. When it is necessary to discharge the bottom impurities, the device can be stopped, the electric push rod 27 can be started, and the piston rod of the electric push rod 27 can be retracted. At this time, the piston rod of the electric push rod 27 drives the supporting bottom plate 26 to move vertically downward, and the supporting bottom plate 26 first drives the side screen plate 23 to move vertically downward. At this time, the side screen plate 23 is placed on the top of the electric push rod 27, and the sewage is discharged through the surface of the fixed inclined plate 24. After the discharge is completed, the supporting bottom plate 26 continues to move downward. At this time, the impurities on the surface of the supporting bottom plate 26 slide along the inclined surface of the triangular block 37 and are quickly discharged;

[0044] A first rectangular hole 29 is provided inside a fixed inclined plate 24 close to the inclined surface of the air flotation pool body 1, a plurality of first sieve holes 11 are provided on the inclined surface of the air flotation pool body 1, a third rectangular hole 34 is provided at the bottom of the air flotation pool body 1, a hollow box 28 is fixedly connected to the bottom of the air flotation pool body 1, the top of the hollow box 28 is connected to the bottom of the third rectangular hole 34, the bottom of the hollow box 28 is connected to the top of the first rectangular hole 29, and the impurities on the water surface carry a small amount of water and impact on the inclined surface of the air flotation pool body 1. At this time, after a small amount of sewage is discharged through the first sieve hole 11, the impurities enter the interior of the hollow box 28 through the third rectangular hole 34, and are finally discharged through the first rectangular hole 29 and the sewage outlet 25, and the filtered sewage is discharged through a plurality of sewage discharge pipes 4;

[0045] The dust removal component is arranged on the top of the inner wall of the air flotation tank body 1 and is used to scrape off the suspended matter. The dust removal component includes two synchronous wheels 22 rotatably connected between the inner walls of the air flotation tank body 1 on both sides. The outer wall transmission sleeves of the two synchronous wheels 22 are provided with the same synchronous belt 10. The outer wall of the synchronous belt 10 is fixedly connected to a plurality of dust removal plates 9. A first servo motor 5 is fixedly connected to one side of the air flotation tank body 1. The output shaft of the first servo motor 5 rotates through the air flotation tank body 1 and is fixedly connected to one end of one of the synchronous wheels 22. The sewage is passed through the air flotation tank body 1. The air flows into one side of the first arc plate 31 through multiple arc holes 30, gas is fed in through the air inlet pipe 8, and the aeration process is completed through multiple hollow tubes 16. The microbubbles in the dissolved air water adhere to the flocculated suspended matter, and the first servo motor 5 is started. The output shaft of the first servo motor 5 drives the synchronous wheel 22 to rotate, the synchronous wheel 22 drives the synchronous belt 10 to rotate, and the synchronous belt 10 drives the multiple dust removal plates 9 to rotate. The multiple dust removal plates 9 push the suspended matter floating on the water surface to one side of the second arc plate 33, and the clean water is discharged through the clean water pipe 2.

[0046] Example 2

[0047] refer to Figure 1-8 , improved on the basis of Example 1: a plurality of arc holes 30 are opened at the bottom of the fixed partition 7, a hollow tube 16 is fixedly connected to the bottom of the air inlet pipe 8, a plurality of aeration holes 17 are opened outside the hollow tube 16, two symmetrically arranged I-frames 13 are fixedly connected between one side of the fixed partition 7 and the inner wall of one side of the flotation tank body 1, a second servo motor 12 is fixedly connected to the top of the I-frame 13, the output shaft of the second servo motor 12 rotates through the I-frame 13 and is fixedly connected with a stirring rod 15, a plurality of stirring blades 14 are fixedly sleeved on the outer wall of the stirring rod 15, sewage is sent into the device through the sewage discharge pipe 6, flocculant and coagulant aid are added to one side of the fixed partition 7, the second servo motor 12 is started, the output shaft of the second servo motor 12 drives the stirring rod 15 to rotate, the stirring rod 15 drives the plurality of stirring blades 14 to rotate, and the stirring blades 14 drive the sewage and the flocculant to perform an effective flocculation reaction.

[0048] However, as is well known to those skilled in the art, the working principles and wiring methods of the second servo motor 12, the first servo motor 5 and the electric push rod 27 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any optional selections according to their needs or convenience.

[0049] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sewage treatment flotation tank capable of quickly cleaning bottom sediment, characterized in that: include: An air flotation pool body (1), wherein one side of the bottom of the air flotation pool body (1) is inclined, a second rectangular hole (32) is opened at the bottom of the air flotation pool body (1), and a clean water pipe (2) is fixedly connected to the middle position of one side of the air flotation pool body (1); A dust box (3), the dust box (3) being arranged at the bottom of the flotation tank body (1), the top of the dust box (3) being connected to the second rectangular hole (32), and the bottom of the dust box (3) being provided with two symmetrically arranged sewage outlets (25) for discharging impurities; A first curved plate (31) and a second curved plate (33) are fixedly connected between the inner walls on both sides of the air flotation pool body (1); the second curved plate (33) and the first curved plate (31) are symmetrically arranged and are respectively located on both sides of the second rectangular hole (32); the second curved plate (33) is close to the side of the inclined surface of the air flotation pool body (1); a same fixed baffle (7) is fixedly connected between the inner walls on both sides of the air flotation pool body (1); the fixed baffle (7) is located on the side of the first curved plate (31) away from the second curved plate (33); A plurality of sewage discharge pipes (4), wherein the plurality of sewage discharge pipes (4) are respectively fixedly connected to two sides of the dust box (3), and the sewage discharge pipes (4) are used to discharge sewage; A sewage discharge pipe (6) and an air intake pipe (8), wherein the sewage discharge pipe (6) and the air intake pipe (8) are both fixedly connected to one side of the top of the air flotation tank body (1) via a fixing assembly, the sewage discharge pipe (6) is used to feed sewage, and the air intake pipe (8) is used to feed gas; A sewage discharge assembly, which is arranged inside the second rectangular hole (32) and is used to discharge impurities at the bottom; A dust removal component is arranged on the top of the inner wall of the air flotation tank body (1) and is used to scrape off suspended matter.

2. A sewage treatment flotation tank capable of quickly cleaning bottom sediment according to claim 1, characterized in that: The sewage discharge assembly comprises two side sieve plates (23) respectively slidably connected to the inner walls on both sides of the second rectangular hole (32); a groove (35) is provided at the bottom of the side sieve plate (23); a plurality of second sieve holes (36) are provided inside the side sieve plate (23); four symmetrical limiting rods (38) are fixedly connected to the inner wall of the bottom of the dust box (3); the outer walls of the four limiting rods (38) are slidably sleeved with the same supporting bottom plate (26); the supporting bottom plate (26) is used in conjunction with the groove (35); the side sieve plate (23) is slidably sleeved on the two limiting rods (38) located on the same side; the top of the limiting rod (38) is fixedly connected to a limiting block (39).

3. A sewage treatment flotation tank capable of quickly cleaning bottom sediment according to claim 1, characterized in that: The sewage discharge assembly also includes two fixed inclined plates (24) fixedly connected to the inner wall of the bottom of the dust box (3) and symmetrically arranged, the fixed inclined plates (24) being arranged in an inclined manner, the top of the fixed inclined plates (24) being used in conjunction with the bottom of the side screen plate (23), the bottom of the dust box (3) being fixedly connected to an electric push rod (27), the piston rod of the electric push rod (27) slidingly passing through the dust box (3) and being fixedly connected to the bottom of the supporting bottom plate (26), the top of the supporting bottom plate (26) being fixedly connected to a triangular block (37).

4. A sewage treatment flotation tank capable of quickly cleaning bottom sediment according to claim 1, characterized in that: The dust removal component comprises two synchronous wheels (22) rotatably connected between the inner walls of the flotation pool body (1) on both sides, the outer wall transmission sleeves of the two synchronous wheels (22) are provided with a same synchronous belt (10), the outer wall of the synchronous belt (10) is fixedly connected with a plurality of dust removal plates (9), one side of the flotation pool body (1) is fixedly connected with a first servo motor (5), the output shaft of the first servo motor (5) rotates through the flotation pool body (1) and is fixedly connected to one end of one of the synchronous wheels (22).

5. A sewage treatment flotation tank capable of quickly cleaning bottom sediment according to claim 1, characterized in that: The fixing assembly comprises an upper pressing plate (19) and a lower pressing plate (21) fixedly connected to the top of the flotation tank body (1); the upper pressing plate (19) is provided with two symmetrically arranged threaded holes (18); the top of the lower pressing plate (21) is provided with two symmetrically arranged threaded grooves (20); the upper pressing plate (19) and the lower pressing plate (21) are fixedly connected by screws; and arc grooves are provided on the sides of the upper pressing plate (19) and the lower pressing plate (21) that are close to each other.

6. A sewage treatment flotation tank capable of quickly cleaning bottom sediment according to claim 3, characterized in that: A first rectangular hole (29) is provided inside one of the fixed inclined plates (24) close to the inclined surface of the flotation pool body (1); a plurality of first sieve holes (11) are provided on the inclined surface of the flotation pool body (1); a third rectangular hole (34) is provided at the bottom of the flotation pool body (1); a hollow box (28) is fixedly connected to the bottom of the flotation pool body (1); the top of the hollow box (28) is connected to the bottom of the third rectangular hole (34); and the bottom of the hollow box (28) is connected to the top of the first rectangular hole (29).

7. A sewage treatment flotation tank capable of quickly cleaning bottom sediment according to claim 1, characterized in that: The bottom of the fixed partition (7) is provided with a plurality of arc-shaped holes (30), the bottom of the air inlet pipe (8) is fixedly connected with a hollow pipe (16), and the outside of the hollow pipe (16) is provided with a plurality of aeration holes (17).

8. The sewage treatment flotation tank capable of quickly cleaning bottom sediment according to claim 1, characterized in that: Two symmetrically arranged workpiece frames (13) are fixedly connected between one side of the fixed partition (7) and the inner wall of one side of the flotation tank body (1); a second servo motor (12) is fixedly connected to the top of the workpiece frame (13); an output shaft of the second servo motor (12) rotates through the workpiece frame (13) and is fixedly connected to a stirring rod (15); and a plurality of stirring blades (14) are fixedly sleeved on the outer wall of the stirring rod (15).

Images