CN116425302A

CN116425302A - Aeration device for sewage treatment

Info

Publication number: CN116425302A
Application number: CN202310242709.1A
Authority: CN
Inventors: 杨兴全
Original assignee: Nantong Suquantong Environmental Protection Technology Co ltd
Current assignee: Nantong Suquantong Environmental Protection Technology Co ltd
Priority date: 2023-03-14
Filing date: 2023-03-14
Publication date: 2023-07-14

Abstract

The invention discloses an aeration device for sewage treatment, which relates to the field of sewage treatment and solves the problem of poor sewage circulating aeration effect in the prior art, and comprises a sewage bucket, wherein the top of the sewage bucket is provided with a water inlet pipe, the bottom of the sewage bucket is also provided with a water draining piston for blocking a water draining outlet, the bottom of the sewage bucket is in an inverted cone shape, and a diversion mechanism is arranged in the sewage bucket through a screw lock connection; the invention can effectively realize the up-down circulating flowing aeration of sewage in the sewage bucket when the filtered sewage is subjected to aeration treatment by the action of the aeration mechanism, the diversion mechanism and the diversion assembly, and can improve the rotation power of an aeration main pipe and an axial flow blade wheel by designing a rotation assisting assembly in the interior of a communicating head, thereby ensuring that the axial flow blade wheel can rotate quickly and conveying the sewage to the upper part of the diversion mechanism.

Description

Aeration device for sewage treatment

Technical Field

The invention relates to the field of sewage treatment, in particular to an aeration device for sewage treatment.

Background

An aeration device for sewage treatment is one of the necessary sewage treatment devices of a modern sewage treatment plant, and the sewage in a sewage tank is mixed with air under the action of aeration, so that a large amount of oxygen in the air is dissolved in the water to carry out biological denitrification, biological dephosphorization, organic carbon removal and other processes;

the prior China publication (CN 111423056B) describes an aeration device for stainless sewage treatment, sewage in an aeration tank is in a circulating flow state, and upward water flow pushed by a paddle in a large through hole passes through a bronchus to form cross impact, so that the aeration effect is better, the efficiency is higher, the effect of full aeration is achieved, and the problem that the sewage and air are insufficiently mixed in the prior aeration device is solved. The filter tank and the automatic cleaning device are designed in the aeration tank, so that the probability of blockage of the aeration head can be reduced, and the cleaning period can be prolonged;

in the prior art, through the cooperation of design at main trachea bottom rotatory trachea, drive trachea and venthole, at main trachea gas-supply in-process, gas is spouted from the venthole, enable rotatory trachea and drive the blade and rotate, but, there are a plurality of aeration heads air-blowing in the upper portion of blade, can to a great extent disturb the water flow condition of blade top for the blade can not effectually be to the orderly stirring of the water of bottom, let the effect of sewage upward transport not good promptly, in actual operation in-process of putting into production, the effect of sewage cyclic aeration hardly is accomplished, for this reason, we propose an aeration equipment for sewage treatment.

Disclosure of Invention

The invention aims to provide an aeration device for sewage treatment, which can realize effective cyclic aeration of sewage, so as to solve the problems in the background technology.

In order to achieve the above purpose, the present invention provides the following technical solutions: the aeration device for sewage treatment comprises a sewage bucket, wherein the top of the sewage bucket is provided with a water inlet pipe, the bottom of the sewage bucket is also provided with a drain piston for blocking a drain outlet, the bottom of the sewage bucket is in an inverted cone shape, and the inside of the sewage bucket is provided with a diversion mechanism through screw locking; the flow guiding mechanism comprises an upper flow guiding cylinder and a lower flow guiding cylinder, wherein the upper flow guiding cylinder and the lower flow guiding cylinder are in up-down butt joint distribution, and a plurality of through holes which are circumferentially distributed at equal intervals are formed in the upper flow guiding cylinder and the lower flow guiding cylinder; the aeration mechanism is used for carrying out aeration treatment on the sewage after coarse filtration and is arranged at the central hollow cylinder of the guide upper cylinder and the guide lower cylinder; the drainage component is used for guiding sewage in the sewage bucket and is arranged in each through hole.

Preferably, the aeration mechanism comprises a communicating head fixedly installed inside the sewage bucket through a hack lever, the communicating head is located between the water inlet pipe and the guide upper cylinder, an aeration pipe is fixedly installed on the outer side of the communicating head, the other end of the aeration pipe penetrates through the sewage bucket, the aeration pipe is far away from one end of the communicating head and the output end of the aerator are in butt joint, an aeration main pipe is installed at the bottom of the communicating head in a screwed connection mode through a rotary sealing joint, a plurality of aeration branch pipes which are distributed in an axial staggered mode are fixedly connected at the periphery of the aeration main pipe, a plurality of aeration heads which are distributed in a straight line equidistant mode are fixedly connected at the outer side of each aeration branch pipe, a plurality of aeration head ports are placed at inclined downward acute angles, and the aeration heads which are placed at inclined downward acute angles are in the rapid air injection process in sewage, and the thrust of the aeration main pipe enables the whole aeration main pipe to rotate at the bottom of the communicating head.

Preferably, the bottom of the aeration main pipe is also fixedly provided with an axial flow blade wheel, the bottom of the guide lower cylinder is concentrically and fixedly provided with a limiting cylinder, the limiting cylinder is sheathed outside the axial flow blade wheel, a gap exists between the limiting cylinder and the bottom of the sewage bucket, the aeration main pipe can stir the bottom of the sewage bucket through the axial flow blade wheel in the rotating process, and when the axial flow blade wheel rapidly rotates on the inner side of the limiting cylinder, sewage outside the limiting cylinder can flow into the bottom of the limiting cylinder.

Preferably, the drainage assembly comprises a frame block arranged in each through hole, the frame blocks are distributed at the joint of the lower guide cylinder and the upper guide cylinder, the lower guide cylinder and the frame block are internally provided with fixing shafts used for fixing the three, the inside of the frame block is fixedly provided with a rotating column, an impeller is sleeved on the rotating column in an external rotating mode, namely, when sewage flows in the through holes, the impeller can be pushed to rotate outside the rotating column, and a limiting assembly is arranged between the impeller and the rotating column.

Preferably, the limiting component comprises a cavity formed in the axis of the impeller, a plurality of ratchets which are distributed at equal intervals in circumference are fixedly arranged on the inner wall of the cavity, ratchets which are movably meshed with the ratchets are fixedly sleeved on the outer surface of the rotating column, the rotation direction of the impeller is the inclination direction of the impeller blades, namely, the impeller can only rotate anticlockwise under the impact of water flow as shown in the attached drawing, and cannot rotate clockwise due to the limitation of the ratchets.

Preferably, the inside of the communication head is further provided with a rotation-assisting component, the rotation-assisting component is fixedly installed on the spiral half-arc air guide plate at the center of the communication head through a fixing column, the aeration pipe is eccentrically arranged in the inside of the communication head, the output end of the aeration pipe is in butt joint with the upper port of the spiral half-arc air guide plate, the inner center of the communication head is rotationally provided with a rotating shaft, the rotating shaft is collinear with the axis of the spiral half-arc air guide plate, the outer surface of the rotating shaft is fixedly provided with a plurality of arc blades which are distributed at equal intervals in a straight line, the bottom of the rotating shaft is fixedly connected with the upper part of the aeration main pipe through a locating rod, and when high-pressure gas is injected into the inside of the communication head through the aeration pipe, the air flow of the aeration pipe can blow the arc blades to rotate under the action of the spiral half-arc air guide plate.

Preferably, the blade inclination direction of the axial flow blade wheel is the same as the port inclination direction of the aeration head, namely the aeration head can drive the axial flow blade wheel to rotate clockwise, and the upward conveying trend of sewage is provided.

Preferably, the top of the upper guide cylinder is provided with a concave table, one edge of the concave table, which is close to the outer surface of the upper guide cylinder, is provided with an inclined chamfer part, one edge of the concave table, which is close to the inner surface of the upper guide cylinder, is provided with a round chamfer part, and the purpose of designing the inclined chamfer part and the round chamfer part at the two edges of the concave table is to prevent a small amount of sewage from being deposited at the top of the upper guide cylinder when the sewage is discharged.

Preferably, the width of the arc-shaped blade is smaller than that of the spiral semi-arc air guide plate, so that the arc-shaped blade can be effectively blown in the process of filling the communication head with high-pressure air flow.

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

according to the invention, through the functions of the aeration mechanism, the flow guiding mechanism and the flow guiding component, the filtered sewage can be effectively subjected to the aeration treatment, the sewage can be fully aerated by circulating the flow aeration up and down in the sewage bucket, meanwhile, the rotation power of the aeration main pipe and the axial flow blade wheel can be improved by designing the rotation assisting component in the communicating head, the axial flow blade wheel can be ensured to rotate rapidly, and the sewage is conveyed to the upper part of the flow guiding mechanism.

Drawings

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

FIG. 2 is a schematic view of the structure of the upper guide cylinder, the lower guide cylinder and the through holes of the invention;

FIG. 3 is a cross-sectional view of the present invention;

FIG. 4 is an enlarged view of the invention at A in FIG. 3;

FIG. 5 is a schematic view of the internal structure of the impeller of the present invention;

FIG. 6 is a schematic view of the structure of the aeration head and the axial flow blade wheel of the present invention;

FIG. 7 is a schematic diagram showing the position distribution of a spiral half-arc air guide plate according to the present invention;

FIG. 8 is a schematic view of a spiral half-arc air guide plate and an arc-shaped blade structure according to the present invention;

FIG. 9 is a schematic view of the top structure of the upper guide shell of the present invention.

In the figure: 1. a sewage bucket; 2. a water inlet pipe; 3. a drain piston; 4. an aeration pipe; 5. an aeration mechanism; 6. a diversion mechanism; 7. a limiting cylinder; 8. a guide upper cylinder; 9. a guide flow down tube; 10. a through hole; 11. a drainage assembly; 12. a communication head; 13. a rotary seal joint; 14. an aeration main pipe; 15. an aeration branch pipe; 16. an aeration head; 17. an axial flow blade wheel; 18. a frame block; 19. a rotating column; 20. an impeller; 21. a ratchet wheel; 22. a ratchet; 23. a rotating shaft; 24. a positioning rod; 25. a spiral semi-arc air guide plate; 26. an arc-shaped blade; 27. a cavity; 28. a fixed shaft; 29. a concave table; 30. a beveled chamfer portion; 31. and a round chamfer.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. 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.

Example 1

Referring to fig. 1-3, an aeration device for sewage treatment in the drawings comprises a sewage bucket 1, wherein a water inlet pipe 2 is arranged at the top of the sewage bucket 1, a water discharge piston 3 for blocking a water discharge outlet is further arranged at the bottom of the sewage bucket 1, the bottom of the sewage bucket 1 is in an inverted cone shape, and a diversion mechanism 6 is arranged in the sewage bucket 1 through a screw lock; the flow guiding mechanism 6 comprises a flow guiding upper cylinder 8 and a flow guiding lower cylinder 9, the flow guiding upper cylinder 8 and the flow guiding lower cylinder 9 are in up-down butt joint distribution, and a plurality of through holes 10 which are circumferentially distributed at equal intervals are formed in the flow guiding upper cylinder 8 and the flow guiding lower cylinder 9; the aeration mechanism 5 is used for carrying out aeration treatment on the sewage after coarse filtration, and the aeration mechanism 5 is arranged at the central hollow cylinders of the upper guide cylinder 8 and the lower guide cylinder 9; a drainage assembly 11, the drainage assembly 11 having a guiding effect on the sewage inside the sewage bucket 1 is installed inside each through hole 10.

Referring to fig. 3 and 6, in the illustration, the aeration mechanism 5 includes a communicating head 12 fixedly installed inside the sewage bucket 1 through a rack bar, the communicating head 12 is located between the water inlet pipe 2 and the upper guide cylinder 8, the outside of the communicating head 12 is fixedly connected with an aeration pipe 4, the other end of the aeration pipe 4 penetrates through the sewage bucket 1, one end of the aeration pipe 4 far away from the communicating head 12 is butted with the output end of the aerator, the bottom of the communicating head 12 is rotatably connected with an aeration main pipe 14 through a rotary sealing joint 13, the periphery of the aeration main pipe 14 is fixedly connected with a plurality of aeration branch pipes 15 which are axially staggered, the outside of each aeration branch pipe 15 is fixedly connected with a plurality of aeration heads 16 which are linearly equidistantly distributed, the ports of the plurality of aeration heads 16 are arranged at an inclined downward acute angle, and the aeration heads 16 arranged at an inclined downward acute angle are in the rapid air injection process in the sewage, and the thrust thereof can enable the whole aeration main pipe 14 to rotate at the bottom of the communicating head 12.

Referring to fig. 3 and 6, in the illustration, an axial flow vane wheel 17 is fixedly arranged at the bottom of the main aeration pipe 14, a limiting cylinder 7 is concentrically and fixedly arranged at the bottom of the lower guide cylinder 9, the limiting cylinder 7 is sleeved outside the axial flow vane wheel 17, a gap exists between the limiting cylinder 7 and the bottom of the sewage bucket 1, the main aeration pipe 14 can stir the bottom of the sewage bucket 1 through the axial flow vane wheel 17 in the rotating process, and when the axial flow vane wheel 17 rotates rapidly at the inner side of the limiting cylinder 7, sewage outside the limiting cylinder 7 can flow into the bottom of the limiting cylinder 7.

Referring to fig. 4, in the illustration, the drainage assembly 11 includes a frame block 18 installed inside each through hole 10, the frame blocks 18 are distributed at the joint of the lower guide cylinder 9 and the upper guide cylinder 8, fixing shafts 28 for fixing the three are installed inside the upper guide cylinder 8, the lower guide cylinder 9 and the frame block 18, a rotating column 19 is fixedly installed inside the frame block 18, and an impeller 20 is sleeved outside the rotating column 19 in a rotating manner, that is, when sewage flows inside the through holes 10, the impeller 20 can be pushed to rotate outside the rotating column 19, and a limit assembly is arranged between the impeller 20 and the rotating column 19.

Referring to fig. 5, the limiting assembly in the illustration includes a cavity 27 formed in the axis of the impeller 20, a plurality of ratchet teeth 22 distributed circumferentially at equal intervals are fixedly mounted on the inner wall of the cavity 27, ratchet wheels 21 movably engaged with the ratchet teeth 22 are fixedly sleeved on the outer surface of the rotary column 19, and the rotation direction of the impeller 20 is the oblique direction of the blades of the impeller 20, i.e. the impeller 20 can only rotate anticlockwise under the impact of water flow as shown in the drawing, and cannot rotate clockwise due to the limitation of the ratchet wheels 21.

Referring to fig. 6, the direction of inclination of the axial flow blade wheel 17 is the same as the direction of inclination of the port of the aerator 16, i.e. the aerator 16 can drive the axial flow blade wheel 17 to rotate clockwise, which tends to convey sewage upward.

The working principle of effective cyclic aeration of sewage can be realized: after the sewage after coarse filtration is input into the sewage bucket 1 through the water inlet pipe 2, after the sewage floods the communicating head 12, the sewage is stopped to be conveyed, the aerator is started, high-pressure air is injected into the communicating head 12 through the aeration pipe 4, the high-pressure air enters the aeration branch pipe 15 through the aeration main pipe 14, finally, the aeration main pipe 16 is sprayed out, the aeration main pipe 14 and the axial flow blade wheel 17 are driven to rotate by the thrust generated in the sewage when the aeration main pipe 16 with the same inclination angle is distributed outside the plurality of aeration branch pipes 15, the sewage flow speed in the sewage is increased in the rotating process, at the moment, the sewage flow speed in the upper diversion cylinder 8, the lower diversion cylinder 9 and the limiting cylinder 7 is slow, at the moment, the rotation of the axial flow blade wheel 17 can suck the external sewage through the bottom of the limiting cylinder 7 and convey the sewage upwards, namely, the sewage at the bottom of the upper part of the sewage bucket 1 flows upwards, when the sewage at the lower part flows downwards through the through hole 10, the impeller 20 is driven to rotate anticlockwise, the impeller 20 is driven to rotate by the impact force generated in the sewage, meanwhile, the sewage is driven to flow downwards through the impeller 20 is driven to flow downwards, the sewage flow speed is effectively and the sewage flows downwards through the through hole 10, the upper diversion cylinder and the sewage is fully flows downwards, the sewage flow speed is completely and the sewage is completely and is circulated, and the sewage can flows downwards through the upper diversion cylinder and the sewage through the upper diversion cylinder and the lower diversion cylinder and the upper cylinder and the lower flow cylinder.

Example 2

Referring to fig. 7 and 8, in this embodiment, for further description of example 1, a rotation-assisting component is further disposed in the communication head 12, the rotation-assisting component includes a spiral semi-arc air guide plate 25 fixedly mounted at the center of the communication head 12 through a fixing column, the aeration pipe 4 is eccentrically disposed in the communication head 12, the output end of the aeration pipe 4 is in butt joint with the upper port of the spiral semi-arc air guide plate 25, a rotating shaft 23 is rotatably mounted at the center of the inner portion of the communication head 12, the rotating shaft 23 is collinear with the axis of the spiral semi-arc air guide plate 25, a plurality of arc blades 26 distributed at equal intervals in a straight line are fixedly mounted on the outer surface of the rotating shaft 23, and the bottom of the rotating shaft 23 is fixedly connected with the upper portion of the aeration main pipe 14 through a positioning rod 24.

Referring to fig. 8, the width of the arc-shaped blade 26 is smaller than the width of the spiral half-arc air guide plate 25 in the drawing, that is, the arc-shaped blade 26 can be blown effectively during the process of filling the communication head 12 with high-pressure air.

In this embodiment: when the aeration pipe 4 injects high-pressure gas into the communication head 12, the air flow can blow the arc-shaped blades 26 to rotate under the action of the spiral half-arc air guide plate 25, and the aeration main pipe 14 and the axial flow blade wheel 17 in the rotating state are matched, so that the rotating power of the aeration main pipe 14 can be improved, the rotating speed of the axial flow blade wheel 17 can be improved, and the sewage can be effectively conveyed upwards.

Example 3

Referring to fig. 9, for further explanation of this embodiment, a concave table 29 is provided at the top of the upper guide cylinder 8, an inclined chamfer 30 is provided at an edge of the concave table 29 near the outer surface of the upper guide cylinder 8, and a round chamfer 31 is provided at an edge of the concave table 29 near the inner surface of the upper guide cylinder 8.

In this embodiment: the purpose of designing the beveled chamfer 30 and the rounded chamfer 31 on both edges of the recess 29 is to avoid that a small amount of sewage will be deposited on top of the upper guide cylinder 8 when the sewage is discharged.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an aeration equipment for sewage treatment, includes sewage bucket (1), the top of sewage bucket (1) is equipped with inlet tube (2), just the bottom of sewage bucket (1) still is equipped with and is used for blockking up drainage piston (3) of outlet, the bottom of sewage bucket (1) is the back taper, its characterized in that: a diversion mechanism (6) is arranged in the sewage bucket (1) in a locking way through a screw;

the flow guide mechanism (6) comprises a flow guide upper cylinder (8) and a flow guide lower cylinder (9), wherein the flow guide upper cylinder (8) and the flow guide lower cylinder (9) are in up-down butt joint distribution, and a plurality of through holes (10) which are distributed at equal intervals in circumference are formed in the flow guide upper cylinder (8) and the flow guide lower cylinder (9);

the aeration mechanism (5) is used for carrying out aeration treatment on the sewage which is subjected to coarse filtration, and the aeration mechanism (5) is arranged at the central hollow cylinder of the guide upper cylinder (8) and the guide lower cylinder (9);

the drainage assembly (11) is used for guiding sewage in the sewage bucket (1), and the drainage assembly (11) is arranged in each through hole (10).

2. An aeration device for sewage treatment according to claim 1, wherein: the utility model provides an aeration mechanism (5) including through hack lever fixed mounting in inside intercommunication head (12) of sewage bucket (1), just intercommunication head (12) are located inlet tube (2) with between section of thick bamboo (8) on the water conservancy diversion, aeration pipe (4) are installed in the outside fixed intercommunication of intercommunication head (12), just the other end of aeration pipe (4) run through in sewage bucket (1), aeration pipe (4) keep away from the one end of intercommunication head (12) is docked with the output of aeration machine, aeration main pipe (14) are installed through rotary seal joint (13) soon to the bottom of intercommunication head (12), just a plurality of aeration branch pipe (15) that are the crisscross distribution of axial are installed to peripheral fixed communication of aeration main pipe (14), every aeration branch pipe (15) outside all fixed communication install a plurality of be sharp equidistance and distribute aeration head (16), a plurality of aeration head (16) port are slope downward acute angle.

3. An aeration device for sewage treatment according to claim 2, wherein: the bottom of the aeration main pipe (14) is also fixedly provided with an axial flow blade wheel (17), the bottom of the guide flow down cylinder (9) is concentrically and fixedly provided with a limiting cylinder (7), the limiting cylinder (7) is sheathed outside the axial flow blade wheel (17), and a gap exists between the limiting cylinder (7) and the bottom of the sewage bucket (1).

4. An aeration device for sewage treatment according to claim 1, wherein: the drainage assembly (11) comprises a frame block (18) arranged inside each through hole (10), the frame blocks (18) are distributed at the joint of the lower guide cylinder (9) and the upper guide cylinder (8), the upper guide cylinder (8) is internally and fixedly provided with a fixing shaft (28) for fixing the three through the lower guide cylinder (9) and the frame block (18), a rotating column (19) is fixedly arranged inside the frame block (18), an impeller (20) is sleeved outside the rotating column (19) in a rotating mode, and a limiting assembly is arranged between the impeller (20) and the rotating column (19).

5. An aeration device for sewage treatment according to claim 4, wherein: the limiting component comprises a cavity (27) which is formed in the axis of the impeller (20), a plurality of ratchets (22) which are distributed at equal intervals in circumference are fixedly arranged on the inner wall of the cavity (27), a ratchet wheel (21) which is movably meshed with the ratchets (22) is fixedly sleeved on the outer surface of the rotating column (19), and the rotation direction of the impeller (20) is the inclination direction of the blades of the impeller (20).

6. An aeration device for sewage treatment according to claim 2, wherein: the inside of intercommunication head (12) still is equipped with and helps revolves the subassembly, help revolve the subassembly include through fixed column fixed mounting in spiral half arc air guide plate (25) of intercommunication head (12) center department, aeration pipe (4) eccentric placement the inside of intercommunication head (12), just the output of aeration pipe (4) with the last port butt joint of spiral half arc air guide plate (25), the inside center department of intercommunication head (12) rotates installs pivot (23), just pivot (23) with the axis collineation of spiral half arc air guide plate (25), the surface fixed mounting of pivot (23) has arc blade (26) that a plurality of is sharp equidistance and distributes, just the bottom of pivot (23) pass through locating lever (24) with the upper portion fixed connection of aeration main pipe (14).

7. An aeration device for sewage treatment according to claim 3, wherein: the blade inclination direction of the axial flow blade wheel (17) is the same as the port inclination direction of the aeration head (16).

8. An aeration device for sewage treatment according to claim 1, wherein: the top of the upper guide cylinder (8) is provided with a concave table (29), one edge of the concave table (29) close to the outer surface of the upper guide cylinder (8) is provided with an inclined chamfer part (30), and one edge of the concave table (29) close to the inner surface of the upper guide cylinder (8) is provided with a round chamfer part (31).

9. An aeration device for sewage treatment according to claim 6, wherein: the blade width of the arc-shaped blades (26) is smaller than the width of the spiral semi-arc air guide plate (25).