CN209872533U

CN209872533U - Aeration tank

Info

Publication number: CN209872533U
Application number: CN201920182889.8U
Authority: CN
Inventors: 李鸿辉; 李长生; 田德琴; 刘波; 高炳林; 方笑求
Original assignee: Shenzhen Zhengmingda Electronic Co Ltd
Current assignee: Shenzhen Zhengmingda Electronic Co Ltd
Priority date: 2019-02-01
Filing date: 2019-02-01
Publication date: 2019-12-31
Anticipated expiration: 2029-02-01

Abstract

The utility model discloses an aeration tank, including the cell body, be provided with water inlet and delivery port on the cell body, still include an agitating unit who inserts the cell body, agitating unit includes the rotatory rotation drive shaft of agitator and drive agitator, is provided with the air guide channel who is used for conveying gas in the rotation drive shaft, is provided with a plurality of aeration holes on the agitator, aeration hole and air guide channel intercommunication. The utility model discloses mechanical stirring and aeration system integration make mud in the pond more even with sewage mixture, and operation, management, maintenance are more simple and convenient, and the few area of integration equipment auxiliary structures is little, and the power consumption is also lower, and all aspects such as operation, maintenance, management are all more convenient.

Description

Aeration tank

Technical Field

The utility model relates to a sewage treatment field especially relates to an aeration tank.

Background

In the sewage treatment process, aeration is to mix activated sludge in an aeration tank with pollutants to generate various biochemical reactions so as to achieve the aim of removing the pollutants. Therefore, the uniformity of the sludge and the sewage in the aeration tank is very important.

In the existing stirring aeration technology, mechanical stirring is a common stirring mode. Most of the aeration stirring modes utilize fluid driven by mechanical stirring to be mixed with aeration airflow in the process of convection circulation. Wherein, agitating unit and aeration equipment are split type setting, hardly reach even aeration, and simultaneously, agitating unit rigidity can only stir in the subregion of cell body, hardly compromises whole cell body, causes the aeration inefficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an aeration, thereby solving the problems.

In order to realize the purpose, the utility model discloses an aeration tank, including the cell body, be provided with water inlet and delivery port on the cell body, still include one and insert agitating unit in the cell body, agitating unit includes agitator and drive the rotatory rotation drive shaft of agitator, be provided with the air guide passageway that is used for conveying gas in the rotation drive shaft, be provided with a plurality of aeration holes on the agitator, the aeration hole with the air guide passageway intercommunication.

Furthermore, the stirrer is a hyperboloid disc with a hollow inner cavity, the hollow inner cavity is communicated with the air guide channel and comprises a stirring part above and an aeration part below, a plurality of stirring blades are arranged in the circumferential direction of the stirring part, and a plurality of aeration holes are arranged in the circumferential direction of the aeration part.

Further, the direction of the output port of the aeration hole is along the radial direction of the rotary driving shaft or towards the bottom of the tank body.

Further, still include air chamber, flexible driving piece, sealed slide and driving motor, sealed slide with the sealed sliding connection of inner chamber of air chamber, the upper end of this sealed slide with the drive end rigid coupling of flexible driving piece, the stiff end of flexible driving piece is installed on the inner wall of air chamber, install the drive on the sealed slide rotatory drive shaft pivoted driving motor, lie in on the rotatory drive shaft be provided with the inlet port that link up to the air guide passageway on the wall of air chamber, be provided with the intercommunication on the air chamber the air inlet of inlet port.

Furthermore, the telescopic driving part comprises a plurality of hydraulic oil cylinders arranged along the circumferential direction of the sealing sliding plate, and piston rods of the hydraulic oil cylinders are fixedly connected with the upper end of the sealing sliding plate.

Furthermore, a sleeve is fixedly connected to the lower side of the air chamber and sleeved on the rotary driving shaft.

Furthermore, the water inlet is arranged at the bottom of one side of the tank body, the water outlet is arranged at the upper part of the other side of the tank body, a water inlet valve is arranged at the input end of the water inlet, a sewage pump is arranged at the input end of the water inlet valve, and a water outlet valve is arranged at the output end of the water outlet.

Further, the stirrer is 1/10-1/20 of the actual size ratio of the pool body, and the aeration holes are 1/20-1/30 of the actual size ratio of the stirrer.

Compared with the prior art, the utility model has the advantages of:

the utility model discloses mechanical stirring and aeration system integration, make mud more even with sewage mixture in the pond, the operation, the management, it is more simple and convenient to maintain, the little area of integration equipment auxiliary structures is little, the power consumption is also lower, the operation, the maintenance, aspects such as management are all more convenient, sludge activity zoogloea has increased 30% -40% in the aeration tank, mass transfer speed has improved 20% -30% sewage mixing degree that gets into the aeration tank and has improved 20% -40%, aeration tank energy consumption has reduced 30% -50%, to a great extent has reduced the aeration cost, sewage treatment's economic benefits has been improved.

The present invention will be described in further detail below with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:

FIG. 1 is a schematic structural diagram of an aeration tank disclosed in an embodiment of the present invention;

FIG. 2 is a schematic view of a stirring device of an aeration tank disclosed in an embodiment of the present invention;

fig. 3 is a schematic view of a stirring part of the stirring device disclosed by the embodiment of the invention;

fig. 4 is a schematic view of an aeration part of the stirring device disclosed in the embodiment of the present invention.

Illustration of the drawings:

1. a tank body; 2. a water inlet; 3. a water outlet; 4. a stirring device; 5. a stirrer; 6. a rotary drive shaft; 7. an air guide channel; 8. an aeration hole; 9. a hollow interior cavity; 10. a stirring section; 11. an aeration section; 12. a stirring blade; 14. an air chamber; 15. sealing the sliding plate; 16. a hydraulic cylinder; 17. a sleeve; 18. a water inlet valve; 19. a sewage pump; 20. a water outlet valve; 21. an air inlet; 22. an air inlet; 23. the motor is driven.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

As shown in fig. 1-4, the utility model discloses an aeration tank, which comprises a tank body 1, a water inlet 2 and a water outlet 3 are arranged on the tank body 1, the water inlet 2 is arranged at the bottom of one side of the tank body 1, the water outlet 3 is arranged at the upper part of the other side of the tank body 1, and an inlet valve 18 is arranged at the input end of the water inlet 2, a sewage pump 19 is arranged at the input end of the inlet valve 18, an outlet valve 20 is arranged at the output end of the water outlet 3, sewage enters from the water inlet 2 through the sewage pump 19, after being stirred and aerated by a stirring device 4 in the tank body 1, various organic matters in the sewage are decomposed and then flow out from the water outlet 3, wherein the stirring device 4 comprises a stirrer 5 and a rotary driving shaft 6 for driving the stirrer to rotate, an air guide channel 7 for conveying air is arranged in the rotary driving shaft, the aeration hole 8 is communicated with the air guide channel 7. Through the integrated design of the stirring device 4 and the special aeration system, sludge and sewage in the pool are mixed more uniformly, the operation, management and maintenance are simpler and more convenient, the integrated equipment has fewer auxiliary structures, occupies small area, consumes less energy, and is more convenient in operation, maintenance, management and other aspects.

In this embodiment, the stirrer 5 is a hyperboloid disc with a hollow inner cavity 9, the hollow inner cavity 9 is communicated with the air guide channel 7, including the stirring part 10 above and the aeration part 11 below, a plurality of stirring blades 12 are uniformly arranged in the circumferential direction of the stirring part 10, a plurality of aeration holes 8 are arranged in the circumferential direction of the aeration part 11, and when the aeration holes are specifically arranged, the outlet direction of the aeration holes 8 is along the radial direction of the rotating driving shaft 6 or towards the bottom of the tank body 1, preferably towards the bottom of the tank body 1, so that the oxygen conveyed by the aeration holes 8 is closer to the stirring blades 12, and can be fully dissolved in the stirring area of the stirring blades 12.

Further, in order to ensure that the whole pool body 1 can be stirred more uniformly, the pool body further comprises a fixed air chamber 14, a telescopic driving piece, a sealing sliding plate 15 and a driving motor 23, the sealing sliding plate 15 is in sealing sliding connection with the inner cavity of the air chamber 14 so as to ensure that the sealing sliding plate 15 is sealed with the lower part of the air chamber 14, the upper end of the sealing sliding plate 15 (which can be a cylinder or a rack and pinion component) is fixedly connected with the driving end of the telescopic driving part, the fixed end of the telescopic driving part is installed on the inner wall of the air chamber 14, the sealing sliding plate 15 is provided with a driving motor 23 for driving the rotary driving shaft 6 to rotate, the rotary driving shaft 6 is in sealing sliding connection with the lower end of the air chamber 14, an air inlet 22 penetrating through the air guide channel 7 is arranged on the wall surface of the air chamber 14 on the rotary driving shaft 6, an air inlet 21 communicated with the air inlet 22 is arranged on the air chamber 14, and the air inlet 21 is used. In this embodiment, the telescopic driving member includes a plurality of hydraulic cylinders 16 arranged along the circumference of the seal sliding plate 15, piston rods of the hydraulic cylinders 16 are fixedly connected to the upper end of the seal sliding plate 15, the cylinder bodies of the hydraulic cylinders 16 are fixedly connected to the inner wall of the air chamber 14, and the air chamber 14 is further provided with through holes for laying oil pipes. In particular, when the hydraulic ram 16 drives the rotary drive shaft 6 to its lowermost limit position, the inlet vents 22 in the rotary drive shaft 6 remain located in the air chamber 14. Thereby form from the top down or from the bottom up even stirring, at the in-process aeration of stirring, the power that forms the stirring from top to bottom drives rivers and makes activated sludge and sewage mix to but improve sewage mixing degree and dissolved oxygen volume, and then improve aeration effect.

Meanwhile, in order to better guide the rotating driving shaft 6 and prevent the stirrer 5 from greatly deflecting to damage the connecting position of the root part when rotating, a sleeve 17 is fixedly connected to the air chamber 14, and the sleeve 17 is sleeved on the rotating driving shaft 6. When the specific size is set, the stirrer 5 is 1/10-1/20 of the actual size proportion of the tank body 1, and the aeration holes 8 are 1/20-1/30 of the actual size proportion of the stirrer 5.

Through practical application and implementation, the sludge active zoogloea in the aeration tank is increased by 30-40%, the mass transfer speed is increased by 20-30%, the mixing degree of sewage entering the aeration tank is increased by 20-40%, the energy consumption of the aeration tank is reduced by 30-50%, the aeration cost is reduced to a great extent, and the economic benefit of sewage treatment is improved.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an aeration tank, includes cell body (1), be provided with water inlet (2) and delivery port (3) on cell body (1), its characterized in that still includes one and inserts agitating unit (4) in cell body (1), agitating unit (4) include agitator (5) and drive rotatory rotation drive axle (6) of agitator (5), be provided with air guide channel (7) that are used for conveying gas in rotation drive axle (6), be provided with a plurality of aeration holes (8) on agitator (5), aeration hole (8) with air guide channel (7) intercommunication.

2. The aeration tank according to claim 1, wherein the stirrer (5) is a hyperboloid disc with a hollow inner cavity (9), the hollow inner cavity (9) is communicated with the air guide channel (7) and comprises an upper stirring part (10) and a lower aeration part (11), a plurality of stirring blades (12) are arranged on the circumferential direction of the stirring part (10), and a plurality of aeration holes (8) are arranged on the circumferential direction of the aeration part (11).

3. The aeration tank according to claim 1, wherein the outlet direction of the aeration holes (8) is along the radial direction of the rotary drive shaft (6) or towards the bottom of the tank body (1).

4. The aeration tank according to any one of claims 1 to 3, further comprising an air chamber (14), a telescopic driving member, a sealing sliding plate (15) and a driving motor (23), wherein the sealing sliding plate (15) is in sealing sliding connection with an inner cavity of the air chamber (14), the upper end of the sealing sliding plate (15) is fixedly connected with the driving end of the telescopic driving member, the fixed end of the telescopic driving member is installed on the inner wall of the air chamber (14), the sealing sliding plate (15) is provided with the driving motor (23) for driving the rotary driving shaft (6) to rotate, an air inlet (22) penetrating through the air guide channel (7) is arranged on the wall surface of the air chamber (14) on the rotary driving shaft (6), and the air chamber (14) is provided with an air inlet (21) communicated with the air inlet (22).

5. The aeration tank as claimed in claim 4, wherein the telescopic driving member comprises a plurality of hydraulic cylinders (16) arranged along the circumference of the seal slide plate (15), and piston rods of the hydraulic cylinders (16) are fixedly connected with the upper end of the seal slide plate (15).

6. An aeration tank according to claim 5, characterized in that a sleeve (17) is further fastened to the lower side of the air chamber (14), said sleeve (17) being fitted over the rotary drive shaft (6).

7. The aeration tank according to claim 6, wherein the water inlet (2) is arranged at the bottom of one side of the tank body (1), the water outlet (3) is arranged at the upper part of the other side of the tank body (1), and the input end of the water inlet (2) is provided with a water inlet valve (18), the input end of the water inlet valve (18) is provided with a sewage pump (19), and the output end of the water outlet (3) is provided with a water outlet valve (20).

8. The aeration tank of claim 7, wherein the agitator (5) is 1/10-1/20 of the actual size ratio of the tank body (1), and the aeration holes (8) are 1/20-1/30 of the actual size ratio of the agitator (5).