CN116495876B

CN116495876B - Sewage treatment device

Info

Publication number: CN116495876B
Application number: CN202310796405.XA
Authority: CN
Inventors: 吕哲; 王杰; 赵松; 王建国
Original assignee: Shandong Academy of Environmental Science
Current assignee: Shandong Academy of Environmental Science
Priority date: 2023-07-03
Filing date: 2023-07-03
Publication date: 2023-09-05
Anticipated expiration: 2043-07-03
Also published as: CN116495876A

Abstract

The application provides a sewage treatment device, and mainly relates to the technical field of sewage treatment equipment. The utility model provides a sewage treatment device, includes the aeration tank, and the montant all is located the aeration tank, the upper portion of montant periphery is respectively through the bearing rotation installation fixed block, the lower part of montant periphery is respectively through the bearing rotation installation lower fixed block, two go up fixed block through last backup pad fixed connection, two lower fixed block passes through lower backup pad fixed connection, the periphery of montant sliding fit installing support respectively, respectively fixed mounting centrifugal submerged aerator in the support, the top surface of going up the backup pad is equipped with can drive two reciprocating assembly that the support reciprocated. The application has the beneficial effects that: the reciprocating assembly drives the corresponding centrifugal submersible aerator to move up and down circularly, so that the centrifugal submersible aerator can perform more comprehensive aeration in the aeration tank, and the aeration effect of sewage is improved.

Description

Sewage treatment device

Technical Field

The application mainly relates to the technical field of sewage treatment equipment, in particular to a sewage treatment device.

Background

The aeration tank is a structure for sewage treatment by an activated sludge process. The tank provides a certain sewage residence time, and satisfies the mixing condition that the oxygen amount required by aerobic microorganisms and sewage fully contact with activated sludge. The aeration tank mainly comprises a tank body, an aeration system and a water inlet and outlet. The tank body is generally constructed by reinforced concrete, and the plane shape of the tank body is rectangular, square, round and the like.

In the prior art, an aeration device used for sewage treatment is generally paved at the bottom of an aeration tank, an expansion bolt is arranged at the bottom of the aeration tank to install a fixing support, an aeration pipeline is directly fixed at the bottom of the aeration tank, when the aeration device is maintained and overhauled, production is stopped, the tank is cleaned, mud is discharged (mud discharge can cause loss to strains in the tank), then maintenance staff enters the tank for maintenance, and the maintenance mode needs to be carried out on the maintenance after the mud in the aeration tank is discharged, so that the sewage treatment efficiency and the maintenance efficiency of the aeration device are affected. Meanwhile, as the aeration pipes are paved at the bottom of the aeration tank, only the bottom area can be aerated, so that the aeration effect of sewage treatment is poor, the upper sewage oxygen supply effect is poor, the aeration efficiency is low, and the sewage treatment efficiency and quality are affected.

Disclosure of Invention

In order to solve the defects in the prior art, the application provides a sewage treatment device which is provided with a reciprocating assembly, and the reciprocating assembly drives a corresponding centrifugal submersible aerator to move up and down circularly, so that the centrifugal submersible aerator can perform more comprehensive aeration in an aeration tank, the aeration effect of upper sewage is improved, and the corresponding centrifugal submersible aerator can be lifted above the water surface by being matched with a lifting mechanism, thereby being convenient for maintenance personnel to detect and maintain the aeration device.

The application aims to achieve the aim, and the aim is achieved by the following technical scheme:

the utility model provides a sewage treatment device, includes the aeration tank, the montant is installed through elevating system to the both sides of aeration tank, the montant all is located the aeration tank, the upper portion of montant periphery is respectively through the bearing rotation installation fixed block, the lower part of montant periphery is respectively through the bearing rotation installation lower fixed block, two go up fixed block and pass through last backup pad fixed connection, two lower fixed block passes through lower backup pad fixed connection, the periphery of montant is the sliding fit installing support respectively, respectively fixed mounting centrifugal submerged aerator in the support, the top surface of going up the backup pad is equipped with can drive two reciprocating assembly that the support reciprocated.

Preferably, the lifting mechanism comprises hydraulic cylinders, the rear parts of the two sides of the top surface of the aeration tank are respectively fixed with the hydraulic cylinders, the movable ends of the hydraulic cylinders are respectively fixedly provided with connecting plates, and the vertical rods vertically penetrate through the corresponding connecting plates and are connected with the bearings of the corresponding connecting plates.

Preferably, the reciprocating assembly comprises a first rotating shaft, the rear face of the upper fixing block and the rear face of the lower fixing block are respectively and rotatably provided with a first rotating shaft, the periphery of the first rotating shaft is respectively and fixedly provided with a first sprocket, all the first sprockets are connected through a first chain in a transmission manner, the rear face of the support is fixedly connected with the front face of the first chain, two sides of the top face of the upper support plate are respectively and fixedly provided with a vertical plate, two reciprocating screw rods are rotatably arranged between the vertical plates, the reciprocating screw rods are provided with moving blocks in a threaded fit manner, the moving blocks are fixedly connected with one side of the upper part of the periphery of the first chain through connecting rods, one side of the outer side of the vertical plate is fixedly provided with a motor, and the output end of the motor is fixedly connected with one end of the reciprocating screw rods.

Preferably, a cross rod is arranged below the reciprocating screw rod in parallel with the reciprocating screw rod, and a first through hole in sliding fit with the cross rod is arranged at the lower part of one side of the moving block.

Preferably, the top of going up the fixed block is the first U type frame of integral type fixed mounting opening forward respectively, the bottom of U type frame is equipped with the breach that supplies first chain to pass through, the preceding second through-hole of seting up respectively of U type frame, the second pivot of bearing installation respectively in the second through-hole, two that lie in the top the rear end of first pivot is fixed mounting first gear respectively, the rear end of second pivot is fixed mounting and corresponding first gear engaged with second gear respectively, the front end of second pivot is fixed mounting first helical gear respectively, the periphery of montant is fixed mounting and corresponding first helical gear engaged with second helical gear respectively, the bottom of montant periphery is fixed mounting several evenly distributed's stirring vane respectively, the bottom of lower backup pad is equipped with the mud subassembly of scraping of being connected with the montant transmission.

Preferably, the mud scraping assembly comprises a third rotating shaft, a plurality of linearly distributed third through holes are formed in the bottom surface of the lower supporting plate, third rotating shafts are respectively and fixedly arranged in the third through holes, a plurality of L-shaped brackets corresponding to the third through holes one by one are fixedly arranged on the bottom surface of the lower supporting plate, fourth rotating shafts are respectively and fixedly arranged on the rear bearings of the L-shaped brackets, fifth rotating shafts are respectively and fixedly arranged on the front bearings of the L-shaped brackets, second chain wheels are respectively and fixedly arranged on the lower portions of the peripheries of the vertical rods, third chain wheels are respectively and fixedly arranged at the lower ends of the third rotating shafts, all the second chain wheels and the third chain wheels are in transmission connection through second chains, third bevel gears are fixedly arranged at one ends of the fourth rotating shafts, fourth bevel gears meshed with corresponding third bevel gears are fixedly arranged on the peripheries of the third rotating shafts, fifth chain wheels are fixedly arranged at the other ends of the fourth rotating shafts, fifth chain wheels are respectively and fixedly connected with corresponding fifth chain wheels through corresponding third transmission connection, helical gears are fixedly arranged at one ends of the fifth rotating shafts, helical gears are fixedly arranged at the bottoms of the sixth bevel gears, and correspondingly and fixedly arranged at the bottom parts of the sixth bevel gears are respectively and fixedly arranged on the lower plates, and fixedly arranged at the bottom parts of the sixth rotating plates respectively.

Preferably, the swing assembly comprises a sleeve and a swing plate, the periphery of the third rotating shaft is respectively provided with the sleeve, the front part of the periphery of the sleeve is respectively hinged with one end of the swing plate, the middle part of the bottom surface of the swing plate is hinged with one end of the push rod, the eccentric part on one side of the fifth bevel gear is connected with one end of the support rod in a rotating way, and the other end of the support rod is respectively connected with one side opposite to the corresponding push rod in a rotating way.

Preferably, a working bridge is fixedly arranged at the front part of the top surface of the aeration tank.

Preferably, the lower parts outside the two lower fixing blocks are respectively and fixedly provided with a transverse plate, the top surfaces of the transverse plates are respectively provided with a fourth through hole, guide rods are arranged in the fourth through holes in a sliding fit manner, and the lower ends of the guide rods are fixedly connected with the bottom surface of the inner wall of the aeration tank.

Preferably, the vertical rod is a hollow pipe with two open ends, and the upper ends of the vertical rod are respectively provided with a flange plate through corresponding rotary joints.

Compared with the prior art, the application has the beneficial effects that:

1. when the device is used, the corresponding centrifugal submersible aerator can be driven to alternately move up and down by the movement of the reciprocating assembly, so that the upper sewage and the lower sewage in the aeration tank can be aerated at the same time, and the dissolved oxygen efficiency of the sewage is improved;

2. the centrifugal submersible aerator is used for alternately moving up and down, the disturbance effect on sewage in the aeration tank can be realized, the dispersion effect of aerobic microorganisms in the sewage is improved, the aerobic microorganisms are more uniformly dispersed in the sewage, the aeration effect of the device can be further enhanced through stirring the sewage, and the treatment efficiency of the sewage is improved;

3. the reciprocating assembly can be matched with the lifting mechanism to lift the corresponding centrifugal submersible aerator to above the water surface, so that maintenance personnel can conveniently detect and maintain the aerator, and the centrifugal submersible aerator is convenient to use.

Drawings

FIG. 1 is a schematic diagram of the structure of the present application;

FIG. 2 is a schematic cross-sectional view of an aeration tank according to the present application;

FIG. 3 is a rear view of the aeration tank of the present application;

FIG. 4 is a schematic view showing the internal structure of the aeration tank of the present application;

FIG. 5 is a schematic view of the construction of the mud scraping assembly of the present application;

FIG. 6 is an enlarged view of part of I of FIG. 2;

FIG. 7 is an enlarged view of part II of FIG. 2;

FIG. 8 is an enlarged view of a portion of III of FIG. 4;

fig. 9 is an enlarged view of part iv of fig. 5.

The reference numbers shown in the drawings: 1. an aeration tank; 2. a vertical rod; 3. an upper fixing block; 4. a lower fixing block; 5. an upper support plate; 6. a lower support plate; 7. a bracket; 8. centrifugal submersible aerator; 9. a hydraulic cylinder; 10. a connecting plate; 11. a first rotating shaft; 12. a first sprocket; 13. a first chain; 14. a riser; 15. a reciprocating screw; 16. a moving block; 17. a connecting rod; 18. a motor; 19. a cross bar; 20. a first through hole; 21. a U-shaped frame; 22. a second through hole; 23. a second rotating shaft; 24. a first gear; 25. a second gear; 26. a first helical gear; 27. a second helical gear; 28. stirring blades; 29. a third rotating shaft; 30. a third through hole; 31. an L-shaped bracket; 32. a fourth rotating shaft; 33. a fifth rotating shaft; 34. a second sprocket; 35. a third sprocket; 36. a second chain; 37. a third bevel gear; 38. a fourth helical gear; 39. a fourth sprocket; 40. a fifth sprocket; 41. a third chain; 42. a fifth helical gear; 43. a sixth rotating shaft; 44. a sixth helical gear; 45. an extension plate; 46. a mud scraping plate; 47. a sleeve; 48. a swinging plate; 49. a push rod; 50. a support rod; 51. a work bridge; 52. a cross plate; 53. a fourth through hole; 54. a guide rod; 55. and a flange plate.

Detailed Description

The application will be further described with reference to the accompanying drawings and specific embodiments. It is to be understood that these examples are illustrative of the present application and are not intended to limit the scope of the present application. Further, it will be understood that various changes and modifications may be made by those skilled in the art after reading the teachings of the application, and equivalents thereof fall within the scope of the application as defined by the claims.

Examples: sewage treatment device

As shown in fig. 1 to 9, a sewage treatment apparatus has a specific structure comprising:

the aeration tank 1, the montant 2 is installed through elevating system in the both sides of aeration tank 1, montant 2 all is located aeration tank 1, fixed block 3 is installed through the bearing rotation respectively in the upper portion of montant 2 periphery, fixed block 4 is installed through the bearing rotation respectively in the lower part of montant 2 periphery, two go up fixed block 3 and pass through last backup pad 5 fixed connection, the both ends of going up backup pad 5 respectively with the inboard fixed connection of corresponding last fixed block 3, two lower fixed block 4 pass through lower backup pad 6 fixed connection, the both ends of lower backup pad 6 respectively with the inboard fixed connection of corresponding lower fixed block 4, the periphery of montant 2 is sliding fit installing support 7 respectively, support 7 all is located between the last fixed block 3 and the lower fixed block 4 of its homonymy, one of them the top surface of support 7 and the bottom surface contact cooperation of corresponding last fixed block 3, another the bottom surface of support 7 and the top surface fixed connection of corresponding lower fixed block 4, the centrifugal aerator 8 of fixed connection in the interior of support 7, 8 and the reciprocal mobile connection of two support plates 5 can be equipped with on the synchronous power supply module of the reciprocal mobile connection of support 7.

The lifting mechanism comprises hydraulic cylinders 9, the rear parts of the two sides of the top surface of the aeration tank 1 are respectively fixed with the hydraulic cylinders 9, the movable ends of the hydraulic cylinders 9 are respectively fixedly provided with connecting plates 10, and the vertical rods 2 respectively vertically penetrate through the corresponding connecting plates 10 and are connected with bearings thereof. When the centrifugal submersible aerator is used, the hydraulic cylinder 9 can drive the upper fixed block 3 connected with the hydraulic cylinder 9 to synchronously move upwards through the extension of the movable rod of the hydraulic cylinder 9, so that the integral height of the centrifugal submersible aerator is increased, the bracket 7 can be moved above the water surface, namely, the corresponding centrifugal submersible aerator 8 can be enabled to discharge water, the centrifugal submersible aerator is convenient to maintain, and the centrifugal submersible aerator is simple to operate and convenient to use.

The reciprocating assembly comprises a first rotating shaft 11, the rear face of an upper fixing block 3 and the rear face of a lower fixing block 4 are respectively and rotatably provided with the first rotating shaft 11, the periphery of the first rotating shaft 11 is respectively and fixedly provided with a first sprocket 12, all the first sprockets 12 are in transmission connection through a first chain 13, the rear face of a bracket 7 is fixedly connected with the front face of the first chain 13, two sides of the top face of an upper supporting plate 5 are respectively and fixedly provided with a vertical plate 14, a reciprocating screw 15 is rotatably arranged between the two vertical plates 14, two ends of the reciprocating screw 15 are respectively connected with inner bearings of the corresponding vertical plates 14, a moving block 16 is arranged on the reciprocating screw 15 in a threaded fit manner, the moving block 16 is fixedly connected with one side of the upper part of the periphery of the first chain 13 through a connecting rod 17, a motor 18 is fixedly arranged on the outer side of one vertical plate 14, the motor 18 is a waterproof stepping motor is selected for use, the motor 18 is connected with a power circuit, and the output end of the motor 18 is fixedly connected with one end of the reciprocating screw 15. When the structure design is used, the motor 18 is used as a power source of the mechanism, when the motor 18 is electrified to work, the output shaft of the motor 18 drives the reciprocating screw rod 15 connected with the motor 18 to synchronously rotate, at the moment, the moving block 16 connected with the screw thread of the reciprocating screw rod 15 circularly moves leftwards and rightwards along the axis of the reciprocating screw rod 15, the moving block 16 drives the first chain 13 to positively and negatively rotate through the connecting rod 17 connected with the moving block 16, the first chain 13 can drive the bracket 7 connected with the first chain 13 to circularly move upwards and downwards in the rotating process, and as the two brackets 7 are arranged one after the other in the initial state, the two brackets 7 alternately move upwards and downwards, so that the two corresponding centrifugal submersible aerator 8 can alternately move upwards and downwards to realize aeration of sewage at different height positions in the aeration tank 1, the aeration effect of sewage at the upper layer and sewage at the lower layer can be realized, and the first stirring effect of sewage in the aeration tank 1 can be realized in the process of alternately moving upwards and downwards, the dispersed microbiota in the aeration tank 1 in the sewage process can be further improved, and the aeration effect of the microbiota can be evenly distributed in the aeration tank 1.

The lower part of the reciprocating screw rod 15 is provided with a cross rod 19 in parallel with the reciprocating screw rod, two ends of the cross rod 19 are respectively fixedly connected with the inner sides of the corresponding vertical plates 14, the lower part of one side of the moving block 16 is provided with a first through hole 20 which is in sliding fit with the cross rod 19, and the cross rod 19 passes through the first through hole 20 and is in sliding fit with the first through hole. This structural design can play spacing effect to movable block 16, makes movable block 16 can be steady remove along reciprocating screw 15's axis, avoids movable block 16 to take place to rotate, improves the stability when movable block 16 removes.

The top of going up fixed block 3 is the U type frame 21 of integral type fixed mounting opening forward respectively, montant 2 passes corresponding U type frame 21 respectively, the bottom of U type frame 21 is equipped with the breach that supplies first chain 13 to pass through respectively, the preceding second through-hole 22 of seting up respectively of U type frame 21, the second pivot 23 is installed to the bearing in the second through-hole 22 respectively, the both ends of second pivot 23 all are located corresponding second through-hole 22 outward, are located two of top the rear end of first pivot 11 respectively fixed mounting first gear 24, the rear end of second pivot 23 respectively fixed mounting with corresponding first gear 24 engaged with second gear 25, the front end of second pivot 23 respectively fixed mounting first helical gear 26, the periphery of montant 2 respectively fixed mounting with corresponding first helical gear 26 engaged with second helical gear 27, the bottom of 2 periphery respectively fixed mounting several evenly distributed stirring vane 28, stirring vane 28 all are located the below corresponding lower fixed block 4, the bottom of support plate 6 is equipped with the transmission subassembly of scraping mud. When the mechanism is designed to be used, when the first chain 13 rotates, the corresponding first chain wheel 12 is driven to synchronously rotate at the same time, the first chain wheel 12 drives the first rotating shaft 11 connected with the first chain wheel 12 to synchronously rotate, the first rotating shaft 11 drives the first gear 24 connected with the first chain wheel to rotate, the first gear 24 drives the first rotating shaft 11 to rotate through the second gear 25 meshed with the first gear 24, the second rotating shaft 23 drives the corresponding vertical rod 2 to synchronously rotate through the first bevel gear 26 and the second bevel gear 27, the second vertical rod 2 respectively drives the stirring blades 28 connected with the second vertical rod to rotate, stirring of lower sewage is realized through rotation of the stirring blades 28, sludge containing microorganisms is prevented from being deposited at the bottom of the aeration tank 1, meanwhile, sludge scraping effect on the bottom surface of the inner wall of the aeration tank 1 is realized through the sludge scraping assembly, the sludge containing microorganisms is further reduced, and the aeration effect of the device is improved.

The mud scraping assembly comprises a third rotating shaft 29, a plurality of linearly distributed third through holes 30 are formed in the bottom surface of the lower supporting plate 6, the third rotating shaft 29 is respectively and rotatably arranged in the third through holes 30, the upper ends of the third rotating shafts 29 are respectively and rotatably connected with the bottom surface of the upper supporting plate 5, the stability of the third rotating shaft 29 is improved, a plurality of L-shaped brackets 31 which are in one-to-one correspondence with the third through holes 30 are fixedly arranged on the bottom surface of the lower supporting plate 6, fourth rotating shafts 32 are arranged on the rear bearings of the L-shaped brackets 31, fifth rotating shafts 33 are arranged on the front bearings of the L-shaped brackets 31, second chain wheels 34 are respectively and fixedly arranged on the lower parts of the peripheries of the vertical rods 2, the second chain wheels 34 are respectively arranged below corresponding stirring blades 28, third chain wheels 35 are respectively and fixedly arranged on the lower ends of the third chain wheels 35, the diameters of the third chain wheels 35 are larger than those of the second chain wheels 34, when the second sprocket 34 drives the third sprocket 35 to rotate through the second chain 36, a corresponding speed reducing effect can be achieved on the third sprocket 35, all the second sprocket 34 and the third sprocket 35 are in transmission connection through the second chain 36, a third bevel gear 37 is fixedly arranged at one end of the fourth rotating shaft 32, a fourth bevel gear 38 meshed with the corresponding third bevel gear 37 is fixedly arranged at the periphery of the third rotating shaft 29, the diameter of the third bevel gear 37 is larger than that of the fourth bevel gear 38, so that the speed reducing effect of the third bevel gear 37 is achieved, a fourth sprocket 39 is fixedly arranged at the other end of the fourth rotating shaft 32, a fifth sprocket 40 is fixedly arranged at one end of the fifth rotating shaft 33, the diameter of the fifth sprocket 40 is larger than that of the fourth sprocket 39, and the rotating speed of the fifth sprocket 40 can be further reduced, the fourth sprocket 39 is respectively connected with the corresponding fifth sprocket 40 through a corresponding third chain 41 in a transmission manner, a fifth bevel gear 42 is fixedly arranged at the other end of the fifth rotating shaft 33, a sixth rotating shaft 43 is respectively rotatably arranged at the bottom of the L-shaped bracket 31, a sixth bevel gear 44 meshed with the corresponding fifth bevel gear 42 is respectively and fixedly arranged at the lower end of the sixth rotating shaft 43, an extension plate 45 is respectively and fixedly arranged at the lower end of the sixth bevel gear 44, a mud scraping plate 46 is fixedly arranged at the bottom of the extension plate 45, and the bottom of the mud scraping plate 46 is attached to the bottom inside the aeration tank 1. When the device is used, the corresponding second chain wheel 34 is driven to synchronously rotate through the rotation of the vertical rod 2, the second chain wheel 34 drives the corresponding third rotating shaft 29 to synchronously rotate through the second chain 36 and the third chain wheel 35, the third rotating shaft 29 drives the corresponding third bevel gear 37 to synchronously rotate through the fourth bevel gear 38 connected with the second chain wheel 36, the third bevel gear 37 drives the corresponding sixth bevel gear 44 to rotate through the transmission effect among the fourth rotating shaft 32, the fourth chain wheel 39, the fifth chain wheel 40, the third chain 41, the fifth rotating shaft 33 and the fifth bevel gear 42, and the rotation angle of the sixth bevel gear 44 is controlled through the speed reduction of the third bevel gear 37 and the fifth chain wheel 40, so that the sixth bevel gear 44 can drive the corresponding mud scraping plate 46 to swing at the bottom of the aeration tank 1, the mud scraping effect on the bottom of the aeration tank 1 is realized, the distribution effect of sludge containing microorganisms is reduced, the distribution effect of the organisms in sewage is promoted, the rotation speed and the rotation angle of the sixth bevel gear 44 are further reduced through the sixth bevel gear 44 with the diameter larger than the fifth bevel gear 42, the reliability of the device is improved, and the mud scraping plate 46 is prevented from being caused by the overlong mud scraping plate 46.

The swinging assembly comprises a sleeve 47 and a swinging plate 48, the outer periphery of the third rotating shaft 29 is respectively provided with the sleeve 47, the front part of the outer periphery of the sleeve 47 is respectively hinged with one end of the swinging plate 48, the middle part of the bottom surface of the swinging plate 48 is hinged with one end of a push rod 49, the eccentric part on one side of the fifth bevel gear 42 is rotatably connected with one end of a supporting rod 50, and the other end of the supporting rod 50 is respectively rotatably connected with one side opposite to the corresponding push rod 49. When the structure design is used, when the fifth bevel gear 42 rotates, the fifth bevel gear 42 can drive the corresponding push rod 49 to move up and down through the support rod 50 connected with the fifth bevel gear 42, so that the push rod 49 pulls the corresponding swing plate 48 to swing up and down, the disturbance effect on sewage flow is realized, the sewage is stirred vertically, and the aeration effect of the sewage is improved.

The front part of the top surface of the aeration tank 1 is fixedly provided with a working bridge 51, and the working bridge 51 is provided with a railing. The user can walk or stay on the work bridge 51, when the centrifugal submersible aerator 8 needs to be maintained, the centrifugal submersible aerator 8 is lifted to be above the water surface, and then the user can stand on the work bridge 51 to work, so that the use is convenient.

The lower parts outside the two lower fixing blocks 4 are respectively and fixedly provided with a transverse plate 52, the top surfaces of the transverse plates 52 are respectively provided with a fourth through hole 53, guide rods 54 are respectively and slidably arranged in the fourth through holes 53, and the lower ends of the guide rods 54 are respectively and fixedly connected with the bottom surface of the inner wall of the aeration tank 1. When the structure design is used, the guide rod 54 and the transverse plate 52 are matched with each other, so that the corresponding lower fixing block 4 can be limited, the vertical rod 2 is prevented from shaking due to the impact of water flow, and the stability of the device is improved.

The vertical rod 2 is a hollow pipe with two open ends, and the upper ends of the vertical rod 2 are respectively provided with a flange plate 55 through corresponding rotary joints. When the structure design is used, the flange plate 55 can be connected with a corresponding air source, such as a fan, an air compressor fan and an air compressor, which are in the prior art, the specific structure and the use mode of the structure are not described in detail herein, and the like, and the sewage in the aeration tank 1 can be oxygenated through the vertical rod 2 when needed, so that the aeration effect is ensured.

In the explanation of the present application, it should be noted that the term "azimuth" is merely for convenience of description and understanding, and does not limit the installation position of specific technical features uniquely, but does not exclude other installation manners that can be implemented.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A sewage treatment device, comprising an aeration tank (1), characterized in that: the utility model discloses a centrifugal submersible aerator, which comprises an aeration tank (1), a support (7), a first rotating shaft (11), a second rotating shaft (11), a first sprocket (13) and a chain (13) respectively, wherein the two sides of the aeration tank (1) are provided with a vertical rod (2) through a lifting mechanism, the vertical rods (2) are all positioned in the aeration tank (1), the upper parts of the peripheries of the vertical rods (2) are respectively provided with a reciprocating assembly capable of driving the two supports (7) to move up and down synchronously through bearings, the lower parts of the peripheries of the vertical rods (2) are respectively provided with a lower fixing block (4) through bearings, the upper fixing blocks (3) are respectively fixedly connected with the upper supporting plates (5), the peripheries of the lower fixing blocks (4) are fixedly connected through the lower supporting plates (6), the peripheries of the vertical rods (2) are respectively in sliding fit with the mounting supports (7), the top surfaces of the upper supporting plates (5) are respectively provided with the reciprocating assembly capable of driving the two supports (7) to move up and down synchronously, the reciprocating assembly comprises the first rotating shaft (11), the rear surfaces of the upper fixing blocks (3) and the rear surfaces of the lower fixing blocks (4) are respectively provided with the first rotating shafts (11), the first rotating shafts (12) are respectively fixedly connected with the first rotating shafts (13) through the first rotating shafts (13), a reciprocating screw (15) is rotatably arranged between the two vertical plates (14), a moving block (16) is arranged on the reciprocating screw (15) in a threaded fit manner, the moving block (16) is fixedly connected with one side of the upper part of the periphery of a first chain (13) through a connecting rod (17), a motor (18) is fixedly arranged on the outer side of one vertical plate (14), the output end of the motor (18) is fixedly connected with one end of the reciprocating screw (15), the top of the upper fixed block (3) is respectively and fixedly provided with a U-shaped frame (21) with a forward opening, a notch for the first chain (13) to pass through is arranged at the bottom of the U-shaped frame (21), a second through hole (22) is respectively formed in the front of the U-shaped frame (21), a second rotating shaft (23) is respectively and fixedly arranged at the rear end of each first rotating shaft (11) above, a first gear (24) is respectively and fixedly arranged at the rear end of each second rotating shaft (23), a bevel gear (26) is respectively and fixedly meshed with a first bevel gear (26) of a corresponding bevel gear (26) respectively, a first bevel gear (26) is respectively meshed with a second bevel gear (26) and a second bevel gear (2) respectively meshed with the first bevel gear (26), the bottom of montant (2) periphery is fixed mounting several evenly distributed stirring vane (28) respectively, the bottom of lower backup pad (6) is equipped with scrapes mud subassembly with montant (2) transmission connection.

2. A sewage treatment apparatus according to claim 1, wherein: the lifting mechanism comprises hydraulic cylinders (9), the hydraulic cylinders (9) are respectively fixed at the rear parts of the two sides of the top surface of the aeration tank (1), connecting plates (10) are respectively and fixedly installed at the movable ends of the hydraulic cylinders (9), and the vertical rods (2) vertically penetrate through the corresponding connecting plates (10) and are connected with bearings of the corresponding connecting plates.

3. A sewage treatment apparatus according to claim 1, wherein: the lower part of the reciprocating screw rod (15) and the lower part of one side of the moving block (16) are provided with a cross rod (19) in parallel, and the lower part of one side of the moving block is provided with a first through hole (20) which is in sliding fit with the cross rod (19).

4. A sewage treatment apparatus according to claim 1, wherein: the mud scraping assembly comprises a third rotating shaft (29), a plurality of linearly distributed third through holes (30) are formed in the bottom surface of the lower supporting plate (6), the third rotating shaft (29) is respectively and fixedly arranged on the bottom surface of the lower supporting plate (6) through bearings, a plurality of L-shaped brackets (31) which are in one-to-one correspondence with the third through holes (30) are fixedly arranged on the bottom surface of the lower supporting plate (6), a fourth rotating shaft (32) is arranged on the rear bearings of the L-shaped brackets (31), a fifth rotating shaft (33) is arranged on the front bearings of the L-shaped brackets (31), a second sprocket (34) is fixedly arranged on the lower portion of the periphery of the vertical rod (2), a third sprocket (35) is fixedly arranged at the lower end of each third rotating shaft (29), all the second sprocket (34) and the third sprocket (35) are in transmission connection through a second chain (36), a third bevel gear (37) is fixedly arranged at one end of each fourth rotating shaft (32), a fourth bevel gear (38) is fixedly arranged on the periphery of each third rotating shaft (31), a fourth bevel gear (38) is fixedly arranged on the other end of each fourth sprocket (40), and the fourth sprocket (40) is fixedly arranged on the other through the corresponding chain (40), the other end of the fifth rotating shaft (33) is fixedly provided with a fifth bevel gear (42), the bottom of the L-shaped bracket (31) is respectively and rotatably provided with a sixth rotating shaft (43), the lower end of the sixth rotating shaft (43) is respectively and fixedly provided with a sixth bevel gear (44) meshed with the corresponding fifth bevel gear (42), the lower end of the sixth bevel gear (44) is respectively and fixedly provided with an extension plate (45), and the bottoms of the extension plates (45) are respectively and fixedly provided with a mud scraping plate (46).

5. A sewage treatment apparatus according to claim 4, wherein: still include swing subassembly, swing subassembly includes sleeve (47), swing board (48), the periphery of third pivot (29) is bearing mounting sleeve (47) respectively, the one end of swing board (48) is articulated respectively to the front portion of sleeve (47) periphery, the one end of push rod (49) is articulated to the middle part of swing board (48) bottom surface, the one end of connecting bracing piece (50) is rotated in the eccentric department of fifth helical gear (42) one side, the other end of bracing piece (50) is connected with the relative one side rotation of corresponding push rod (49) respectively.

6. A sewage treatment apparatus according to claim 1, wherein: the front part of the top surface of the aeration tank (1) is fixedly provided with a working bridge (51).

7. A sewage treatment apparatus according to claim 1, wherein: the lower parts outside the two lower fixing blocks (4) are respectively fixedly provided with a transverse plate (52), the top surfaces of the transverse plates (52) are respectively provided with a fourth through hole (53), guide rods (54) are arranged in the fourth through holes (53) in a sliding fit mode, and the lower ends of the guide rods (54) are fixedly connected with the bottom surface of the inner wall of the aeration tank (1).

8. A sewage treatment apparatus according to claim 1, wherein: the vertical rod (2) is a hollow pipe with two open ends, and the upper ends of the vertical rod (2) are respectively provided with a flange plate (55) through corresponding rotary joints.