CN116253445A - Sewage treatment field aeration tank based on aeration fan - Google Patents

Abstract

The utility model provides a sewage treatment field aeration tank based on aeration fan, including the cell body, cell body inside intermediate position integrated into one piece has the pillar, form the aeration annular between cell body inside wall and the pillar outer wall, the cell body outside is provided with down the draft tube and goes up the draft tube, and the outside below of cell body is provided with aeration conveying part, aeration annular inside bottom is provided with the inner ring pipe with aeration conveying part intercommunication, inner ring pipe top equidistance is provided with many pairs of aeration parts along the circumferencial direction, the aeration part includes the jet pipe of two symmetries settings, all rotate the intercommunication through the intercommunication piece between jet pipe bottom intermediate position and the inner ring pipe and be connected, the jet pipe top evenly is provided with a plurality of aeration heads, be provided with the driving piece that order about the jet pipe circulation of symmetry setting to swing inside the pillar. When the two air ejector pipes swing, the aeration head can generate displacement in sewage in the aeration process, the sewage aeration range is improved, and the sewage treatment efficiency is effectively increased.

Description

Sewage treatment field aeration tank based on aeration fan

Technical Field

The invention relates to the technical field of sewage aeration treatment, in particular to a sewage treatment field aeration tank based on an aeration fan.

Background

The aeration tank is a biochemical reactor designed by people according to the characteristics of microorganisms, and the degradation degree of organic pollutants mainly depends on the aeration reaction conditions designed by people.

The aeration tank is used for sewage treatment by an activated sludge method, a certain sewage residence time is provided in the tank, and the oxygen amount required by aerobic microorganisms and the mixing condition that sewage and activated sludge are fully contacted are met.

Among the prior art, chinese patent as the application number CN201922383654.8 discloses an aeration tank aeration equipment for sewage treatment, drives (mixing) shaft and stirring leaf through agitator motor and rotates, utilizes the mechanical stirring mode to increase water and air area of contact, can realize stirring radius's change when stirring, effectively strengthened the treatment effect of sewage, outer loop aeration pipe, the aeration hole that inner loop aeration pipe and connection aeration pipe were seted up can make the air evenly distribute to the aeration tank in, can effectively realize oxygen and activated sludge's mixture.

However, the aeration heads in the aeration system of the aeration tank in the prior art are all arranged in a positioning mode, displacement cannot be generated in sewage in the aeration process, the sewage aeration direction is fixed, the sewage aeration range is greatly reduced, and the sewage treatment efficiency is reduced, so that the aeration tank of the sewage treatment field based on the aeration fan is provided.

Disclosure of Invention

The invention mainly aims to provide a sewage treatment field aeration tank based on an aeration fan, and aims to solve the technical problems.

In order to achieve the aim, the invention provides the sewage treatment field aeration tank based on the aeration fan, which comprises a tank body, wherein a column pipe is integrally formed in the middle position in the tank body, an aeration annular groove is formed between the inner side wall of the tank body and the outer wall of the column pipe, a lower draft pipe and an upper draft pipe are arranged on the outer side of the tank body, an aeration conveying member is arranged below the outer side of the tank body, an inner ring pipe communicated with the aeration conveying member is arranged at the bottom end in the aeration annular groove, a plurality of pairs of aeration members are equidistantly arranged at the top of the inner ring pipe along the circumferential direction, each aeration member comprises two symmetrically arranged air injection pipes, the middle position of the bottom of each air injection pipe is rotationally communicated with the inner ring pipe through a communication member, a plurality of aeration heads are uniformly arranged at the top of each air injection pipe, and a driving member for driving the symmetrically arranged air injection pipes to circularly swing is arranged in the column pipe.

Preferably, the aeration conveying member comprises an outer ring pipe fixedly sleeved on the outer side of the bottom of the tank body, a plurality of aeration fans communicated with the inner part of the outer ring pipe are arranged on the outer wall of the tank body at equal intervals, and the outer ring pipe is communicated with the inner ring pipe through a plurality of gas pipes.

Preferably, the driving piece includes through the inside main inflator of mounting bracket fixed mounting at the pillar, main inflator top evenly is provided with a plurality of air vents, and electric putter is installed to main inflator top intermediate position, electric putter expansion end extends to inside and tip fixed mounting seal pushing disc of main inflator, seal pushing disc and the sealed sliding fit of main inflator inner wall, a plurality of gas-separation tubes are installed in main inflator bottom outer wall intercommunication, the inside equal sealed sliding of gas-separation tube is provided with the piston head, main inflator one end fixedly connected with drive mobile jib is kept away from to the piston head, drive mobile jib runs through gas-separation tube and pillar and tip fixed connection connecting piece respectively, two drive connecting rods are installed in connecting piece one side symmetry rotation, two drive connecting rods rotate respectively and connect in adjacent gas-separation tube tip bottom, leave the clearance of ventilating between drive mobile jib and the gas-separation tube tip opening, and sealed sliding fit between drive mobile jib and the pillar.

Preferably, a pushing piece is arranged in the aeration ring groove formed between the inner side wall of the tank body and the outer wall of the column tube and used for pushing sewage in the aeration ring groove.

Preferably, the pushing piece comprises a mounting seat fixedly mounted at the top end of the column tube, a top ring plate is mounted at the top of the mounting seat through a sliding piece, a driving mechanism is arranged on the inner side of the top ring plate, side ring plates are integrally formed on the outer side of the top ring plate, a plurality of driving frames are welded at equal intervals on the outer side of the side ring plates, an upper pushing plate is vertically mounted at the bottom of each driving frame, a lower pushing plate is obliquely arranged below the upper pushing plate, a through-flow gap is reserved between the upper pushing plate and the lower pushing plate, and the bottom of the lower pushing plate is in a blade-shaped arrangement.

Preferably, the driving mechanism comprises a motor fixedly arranged at the top end of the mounting seat, a driving gear is fixedly arranged at the end part of the output shaft of the motor, an inner ring gear is integrally formed at the inner side edge of the top ring plate, the driving gear is meshed with the inner ring gear, and the inner ring gear and the side ring plate are respectively bonded and welded on the outer wall of the U-shaped sliding sleeve seat.

Preferably, the sliding piece comprises annular grooves arranged on the inner side and the outer side of the mounting seat, a plurality of U-shaped sliding sleeve seats are sleeved on the top of the mounting seat in an equidistant sliding mode, the U-shaped sliding sleeve seats are in sliding fit with the annular grooves, the top annular plate is fixedly arranged at the top ends of the plurality of U-shaped sliding sleeve seats, annular rails are fixedly arranged at the top ends of the mounting seat, rail wheels are rotatably arranged on the inner side of the U-shaped sliding sleeve seats through wheel frames, and the plurality of rail wheels are jointly seated on the annular rails.

Preferably, the two ends of the lower push plate are connected with the upper push plate through connecting plates, a rotating shaft is rotatably arranged between the two connecting plates, a plurality of shaft sleeves are equidistantly arranged on the outer side of the rotating shaft, and a plurality of bending plates are arranged on the outer side of each shaft sleeve.

Preferably, the top of one side of the upper pushing plate far away from the lower pushing plate is provided with a plurality of puncturing parts, the puncturing parts are laths horizontally connected with the side wall of the upper pushing plate, and the bottom ends of the laths are uniformly provided with pointed nails.

Preferably, the bottom end of the inner part of the pool body at the corresponding position of the inner ring pipe is provided with a lifting ring, and the inner ring pipe is fixedly clamped at the top end of the lifting ring through a plurality of buckles.

Due to the adoption of the technical scheme, the invention has the following beneficial effects:

(1) The aeration conveying member is arranged, so that gas injection treatment can be performed inside the inner ring pipe, and meanwhile, the gas inside the inner ring pipe can be conveyed to a plurality of aeration heads to be sprayed out through the communication member and the gas spraying pipe, so that aeration treatment is performed in sewage;

(2) The invention is provided with the mounting frame, so that the main air cylinder can be stably mounted in the column tube, and the sealing pushing disc can be driven to move in the main air cylinder by arranging the electric push rod and the vent holes, so that the air in the main air cylinder is pushed into the plurality of air distribution cylinders, the piston heads are driven to push the driving main rods to drive the connecting pieces to move, and the two driving connecting rods drive the adjacent two air injection tubes to swing, so that the aeration head can generate displacement in sewage in the aeration process, the sewage aeration range is improved, the sewage treatment efficiency is effectively increased, and meanwhile, the air injection tubes can be driven to repeatedly and circularly swing under the state that the electric push rod stretches back and forth, and the aeration flexibility is effectively improved;

(3) The sewage inside the aeration ring groove can be pushed by arranging the pushing piece, so that the aeration treatment effect of the sewage is further improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an aeration tank structure of a sewage treatment plant based on an aeration fan;

FIG. 2 is a cross-sectional view of a tank body of an aeration tank of a sewage treatment plant based on an aeration fan;

FIG. 3 is a schematic view of a part of the mechanism of FIG. 2 in a disassembled configuration;

FIG. 4 is a cross-sectional view of a column tube of an aeration tank of a sewage treatment plant based on an aeration fan according to the present invention;

FIG. 5 is a schematic diagram of a sliding part splitting structure of an aeration tank of a sewage treatment plant based on an aeration fan;

FIG. 6 is a schematic view of a portion of the structure of FIG. 3;

FIG. 7 is an enlarged schematic view of the structure of FIG. 6A;

FIG. 8 is a schematic view of a driving member according to the present invention;

FIG. 9 is a cross-sectional view of a portion of the structure of FIG. 8;

FIG. 10 is a schematic view of a lift ring and snap connection according to the present invention;

fig. 11 is a schematic view of a portion of the structure of fig. 8.

Reference numerals illustrate: 1. a cell body; 2. an aeration fan; 3. a gas pipe; 4. an outer collar; 5. a down draft tube; 6. an upper draught tube; 7. a side ring plate; 8. inner ring teeth; 9. a top ring plate; 10. a drive rack; 11. a mounting base; 12. a push plate; 13. a column tube; 14. an inner collar; 15. an aeration head; 16. a lower push plate; 17. a connecting plate; 18. a gas lance; 19. a drive gear; 20. a motor; 21. a circular rail; 22. a ring groove; 23. a rail wheel; 24. a U-shaped sliding sleeve seat; 25. a wheel carrier; 26. a bending plate; 27. a shaft sleeve; 28. a rotation shaft; 29. a slat; 30. a spike nail; 31. an electric push rod; 32. a main air cylinder; 33. a mounting frame; 34. a lifting ring; 35. a piston head; 36. a drive link; 37. driving the main rod; 38. a vent hole; 39. a gas cartridge; 40. sealing the pushing disc; 41. a connecting piece; 42. a buckle; 43. and a communication member.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

The sewage treatment field aeration tank based on the aeration fan shown in fig. 1-11 comprises a tank body 1, wherein a column pipe 13 is integrally formed in the middle position inside the tank body 1, an aeration annular groove is formed between the inner side wall of the tank body 1 and the outer wall of the column pipe 13, a lower draft pipe 5 and an upper draft pipe 6 are arranged on the outer side of the tank body 1, a water inlet and a water outlet in the prior art are not described in detail, an aeration conveying piece is arranged below the outer side of the tank body 1, the aeration conveying piece comprises an outer ring pipe 4 fixedly sleeved on the outer side of the bottom of the tank body 1, a plurality of aeration fans 2 communicated with the inside of the outer ring pipe 4 are equidistantly arranged on the outer wall of the tank body 1, the outer ring pipe 4 is communicated with the inner ring pipe 14 through a plurality of gas transmission pipes 3, the inner ring pipe 14 communicated with the aeration conveying piece is arranged at the bottom inside the inner ring groove, and a plurality of pairs of aeration pieces are equidistantly arranged on the top of the inner ring pipe 14 along the circumferential direction; by arranging a plurality of aeration fans 2, external air can be quickly conveyed into the outer ring pipe 4, then the external air is introduced into the inner ring pipe 14, and sewage is aerated through a plurality of pairs of aeration pieces.

The bottom end of the interior of the pool body 1 at the corresponding position of the inner ring pipe 14 is provided with a lifting ring 34, and the inner ring pipe 14 is fixedly clamped at the top end of the lifting ring 34 through a plurality of buckles 42; by arranging the lifting ring 34 and the plurality of buckles 42, the inner ring pipe 14 can be stably clamped at the bottom end inside the tank body 1, and the positioning effect on the inner ring pipe 14 is achieved.

The aeration member comprises two symmetrically arranged air ejector tubes 18, the middle position of the bottom of each air ejector tube 18 is rotationally communicated with the inner ring tube 14 through a communicating member 43, a plurality of aeration heads 15 are uniformly arranged at the top of each air ejector tube 18, a driving member for driving the symmetrically arranged air ejector tubes 18 to circularly swing is arranged in each column tube 13, each driving member comprises a main air cylinder 32 fixedly arranged in each column tube 13 through a mounting frame 33, a plurality of vent holes 38 are uniformly formed in the top of each main air cylinder 32, an electric push rod 31 is arranged at the middle position of the top end of each main air cylinder 32, the telescopic end of each electric push rod 31 extends into the inside of each main air cylinder 32, a sealing push disc 40 is fixedly arranged at the end of each sealing push disc 40 in sealing sliding fit with the inner wall of each main air cylinder 32, a plurality of branch air cylinders 39 are communicated with the outer wall of the bottom of each main air cylinder 32, piston heads 35 are respectively arranged in the inside of each branch air cylinders 39 in a sealing sliding manner, one end of each piston head 35 far away from each main air cylinder 32 is fixedly connected with a driving main rod 37, each driving main rod 37 penetrates each branch 39 and each column tube 13, each end of each connecting member 41 is symmetrically rotates at one side of the connecting member 41 to be symmetrically, two driving connecting rods 36 are respectively connected to the end of each main air cylinder 32, each main rod 36 are rotationally connected to the adjacent air cylinders 18, and are respectively rotatably connected to the main rod 37, and are respectively connected to the main rod 18 and are respectively in a sealing rod and are rotationally connected to the air cylinders and respectively, and each branch rod and are in a sealing rod and each end and are in a sealing part and a sealing joint; through setting up mounting bracket 33 to can be with inside main inflator 32 stable the installation at pillar 13, and through setting up electric putter 31 and air vent 38, thereby can order about sealed pushing disc 40 at inside removal of main inflator 32, with this with inside gaseous the pushing of main inflator 32 to a plurality of minute inflator 39 inside, order about piston head 35 promote drive mobile jib 37 drive connecting piece 41 and remove, cause two drive connecting rods 36 to drive adjacent two air jet tubes 18 swing, make the aeration head can produce the displacement in sewage at the aeration process, improve sewage aeration scope, effectively increased sewage treatment efficiency, and can order about air jet tube 18 to circulate repeatedly under the flexible state of electric putter 31 back and forth and swing, effectively improve the flexibility of aeration.

The inside of the aeration ring groove is provided with a pushing piece, the pushing piece comprises a mounting seat 11 fixedly mounted at the top end of a column tube 13, the top of the mounting seat 11 is provided with a top ring plate 9 through a sliding piece, the inner side of the top ring plate 9 is provided with a driving mechanism, the driving mechanism comprises a motor 20 fixedly mounted at the top end of the mounting seat 11, the end part of an output shaft of the motor 20 is fixedly provided with a driving gear 19, the inner side edge of the top ring plate 9 is integrally formed with an inner ring tooth 8, the driving gear 19 is meshed with the inner ring tooth 8, the inner ring tooth 8 and the side ring plate 7 are respectively attached and welded to the outer wall of a U sliding sleeve seat 24, the outer side of the top ring plate 9 is integrally formed with a side ring plate 7, the outer side of the side ring plate 7 is equidistantly welded with a plurality of driving frames 10, the bottom of the driving frames 10 is vertically provided with an upper push plate 12, a lower push plate 16 is obliquely arranged below the upper push plate 12, a through-flow gap is reserved between the two ends of the lower push plate 16 and the upper push plate 12, a rotating shaft 28 is rotatably mounted between the two connecting plates 17, a rotating shaft 28 is mounted between the two connecting plates 17, a plurality of shaft sleeves 27 are equidistantly arranged at the outer sides of the rotating shaft 28, a plurality of bent plates 26 are mounted at the outer sides of the shaft sleeve edges, and the bottom of the lower push plate 16 is in a blade shape and is provided with a blade shape; through start motor 20 to can order about top ring board 9 to drive side ring board 7 rotatory under slider and drive gear 19 and the cooperation of inner ring tooth 8, cause drive frame 10 to drive push pedal 12, connecting plate 17 and push pedal 16 to promote the inside sewage of aeration annular down, further increase the aeration treatment effect of sewage, and set up the push pedal 16 bottom into the sword form down, thereby can cut the bubble that aeration produced in the sewage, rotation axis 28, axle sleeve 27 and the bending plate 26 that set up can rotate under the thrust effect of water simultaneously, so break up the bubble in the sewage again, increase the bubble has the contact between the sewage.

The sliding piece comprises annular grooves 22 arranged on the inner side and the outer side of the mounting seat 11, a plurality of U-shaped sliding sleeve seats 24 are sleeved on the top of the mounting seat 11 in an equidistant sliding manner, the U-shaped sliding sleeve seats 24 are in sliding fit with the annular grooves 22, a top annular plate 9 is fixedly arranged on the top ends of the plurality of U-shaped sliding sleeve seats 24, an annular rail 21 is fixedly arranged at the top end of the mounting seat 11, rail wheels 23 are rotatably arranged on the inner side of the U-shaped sliding sleeve seats 24 through wheel frames 25, and the plurality of rail wheels 23 are jointly seated on the annular rail 21; through setting up annular 22 to can be with the stable suit of U sliding sleeve seat 24 at mount pad 11 top, annular rail 21, rail wheel 23 and the wheel carrier 25 that set up simultaneously, thereby can improve the stability of U sliding sleeve seat 24 in-process of sliding.

The top of one side of the upper push plate 12 far away from the lower push plate 16 is provided with a plurality of puncturing parts, wherein the puncturing parts are laths 29 horizontally connected with the side wall of the upper push plate 12, and sharp nails 30 are uniformly arranged at the bottom ends of the laths 29; by providing the slat 29, the spike 30 can be installed, and the spike 30 can puncture bubbles generated in sewage by aeration, thereby generating blasting.

The working mode is as follows: firstly, the aeration conveying member is started to perform gas injection treatment inside the inner ring pipe 14, meanwhile, the gas inside the inner ring pipe 14 is conveyed to a plurality of aeration heads 15 through the communicating member 43 and the gas injection pipe 18, so that the aeration treatment is performed in sewage, the main gas cylinder 32 is stably installed inside the column pipe 13 under the action of the installation frame 33, the sealing push plate 40 is driven to move inside the main gas cylinder 32 under the cooperation of the vent holes 38 through starting the electric push rod 31, so that the gas inside the main gas cylinder 32 is pushed into the plurality of gas separation pipes 39, the piston heads 35 are driven to push the driving main rod 37 to drive the connecting member 41 to move, the two driving connecting rods 36 drive the adjacent two gas injection pipes 18 to swing, the aeration heads can generate displacement in the sewage in the aeration process, the aeration treatment range of the sewage is improved, the sewage treatment efficiency is effectively increased, meanwhile, the gas injection pipe 18 is driven to repeatedly and circularly swing under the state that the electric push rod 31 is in a back and forth telescopic mode, the flexibility of aeration is effectively improved, and meanwhile, the pushing member is started to push the sewage inside the aeration ring groove to perform the aeration treatment, so that the aeration treatment effect is further increased.

The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather, the equivalent structural changes made by the description of the present invention and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the invention.

Claims (10)

1. An aeration tank of a sewage treatment field based on an aeration fan is characterized in that: including cell body (1), inside intermediate position integrated into one piece of cell body (1) has pillar (13), form aeration annular between cell body (1) inside wall and pillar (13) outer wall, cell body (1) outside is provided with down draught tube (5) and goes up draught tube (6), and cell body (1) outside below is provided with aeration conveying member, aeration annular inside bottom is provided with inner ring pipe (14) with aeration conveying member intercommunication, inner ring pipe (14) top is provided with many pairs of aeration members along the circumferencial direction equidistance, the aeration member includes two jet-propelled pipes (18) of symmetry setting, all rotate the intercommunication through intercommunication connection between jet-propelled pipe (18) bottom intermediate position and the inner ring pipe (14), jet-propelled pipe (18) top evenly is provided with a plurality of aeration heads (15), be provided with the driver that the circulation of symmetrically set up jet-propelled pipe (18) inside pillar (13).

2. An aeration tank for a sewage treatment plant based on an aeration fan as claimed in claim 1, wherein: the aeration conveying member comprises an outer ring pipe (4) fixedly sleeved outside the bottom of the tank body (1), a plurality of aeration fans (2) communicated with the inside of the outer ring pipe (4) are arranged on the outer wall of the tank body (1) at equal intervals, and the outer ring pipe (4) is communicated with the inner ring pipe (14) through a plurality of air conveying pipes (3).

3. An aeration tank for a sewage treatment plant based on an aeration fan as claimed in claim 1, wherein: the driving piece includes through inside main inflator (32) of mounting bracket (33) fixed mounting in pillar (13), main inflator (32) top evenly is provided with a plurality of air vents (38), and electric putter (31) are installed to main inflator (32) top intermediate position, electric putter (31) flexible end extends to inside and tip fixed mounting seal pushing disc (40) of main inflator (32), seal pushing disc (40) and the sealed sliding fit of main inflator (32) inner wall, a plurality of gas-dividing tubes (39) are installed in main inflator (32) bottom outer wall intercommunication, the inside all sealed sliding of gas-dividing tubes (39) is provided with piston head (35), main inflator (32) one end fixedly connected with drive mobile jib (37) are kept away from to piston head (35), drive mobile jib (37) run through gas-dividing tube (39) and pillar (13) and tip fixed connection connecting piece (41) respectively, two drive connecting rods (36) are installed in one side symmetry rotation, two drive connecting rods (36) are connected in adjacent gas-dividing tube (18) tip bottom, leave between mobile jib (37) and gas-dividing tube (39) tip opening, and between sealed sliding fit of gas-dividing tube (13).

4. An aeration tank for a sewage treatment plant based on an aeration fan as claimed in claim 1, wherein: a pushing piece is arranged in an aeration ring groove formed between the inner side wall of the tank body (1) and the outer wall of the column tube (13) and used for pushing sewage in the aeration ring groove.

5. An aeration tank for a sewage treatment plant based on an aeration fan according to claim 4, wherein: the pushing piece comprises a mounting seat (11) fixedly mounted at the top end of a column tube (13), a top ring plate (9) is mounted at the top of the mounting seat (11) through a sliding piece, a driving mechanism is arranged on the inner side of the top ring plate (9), side ring plates (7) are integrally formed on the outer side of the top ring plate (9), a plurality of driving frames (10) are welded on the outer side of the side ring plates (7) at equal intervals, an upper pushing plate (12) is vertically mounted at the bottom of the driving frame (10), a lower pushing plate (16) is obliquely arranged below the upper pushing plate (12), a through-flow gap is reserved between the upper pushing plate and the lower pushing plate, and the bottom of the lower pushing plate (16) is in a blade-shaped arrangement.

6. An aeration tank for a sewage treatment plant based on an aeration fan according to claim 5, wherein: the driving mechanism comprises a motor (20) fixedly arranged at the top end of the mounting seat (11), a driving gear (19) is fixedly arranged at the end part of an output shaft of the motor (20), an inner ring gear (8) is integrally formed at the inner side edge of the top ring plate (9), the driving gear (19) is meshed with the inner ring gear (8), and the inner ring gear (8) and the side ring plate (7) are respectively bonded and welded on the outer wall of the U sliding sleeve seat (24).

7. An aeration tank for a sewage treatment plant based on an aeration fan according to claim 5, wherein: the sliding part comprises annular grooves (22) arranged on the inner side and the outer side of a mounting seat (11), a plurality of U sliding sleeve seats (24) are sleeved on the top of the mounting seat (11) in an equidistant sliding mode, the U sliding sleeve seats (24) are in sliding fit with the annular grooves (22), a top annular plate (9) is fixedly arranged on the top ends of the plurality of U sliding sleeve seats (24), an annular rail (21) is fixedly arranged at the top end of the mounting seat (11), rail wheels (23) are rotatably arranged on the inner side of the U sliding sleeve seats (24) through wheel frames (25), and the plurality of rail wheels (23) are jointly arranged on the annular rail (21).

8. An aeration tank for a sewage treatment plant based on an aeration fan according to claim 5, wherein: the two ends of the lower push plate (16) are connected with the upper push plate (12) through connecting plates (17), a rotating shaft (28) is rotatably arranged between the two connecting plates (17), a plurality of shaft sleeves (27) are equidistantly arranged on the outer sides of the rotating shaft (28), and a plurality of bending plates (26) are arranged on the outer sides of the shaft sleeves (27).

9. An aeration tank for a sewage treatment plant based on an aeration fan according to claim 5, wherein: the top of one side of the upper push plate (12) far away from the lower push plate (16) is provided with a plurality of puncturing parts, the puncturing parts are laths (29) horizontally connected with the side wall of the upper push plate (12), and the bottom ends of the laths (29) are uniformly provided with pointed nails (30).

10. An aeration tank for a sewage treatment plant based on an aeration fan as claimed in claim 1, wherein: the bottom end of the interior of the pool body (1) at the corresponding position of the inner ring pipe (14) is provided with a lifting ring (34), and the inner ring pipe (14) is fixedly clamped at the top end of the lifting ring (34) through a plurality of buckles (42).

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