Aeration device for sewage treatment

Abstract

The utility model relates to an aeration device for sewage treatment, which comprises a sewage treatment tank, at least one top plate is arranged at the top of the sewage treatment tank, and a plurality of sewage treatment components are arranged on the top plate along the axial length direction. Each sewage treatment assembly comprises a motor arranged on the top plate, a vertical pipe driven by the motor to rotate and an aeration generator, the lower end of the vertical pipe extends to the bottom of the sewage treatment tank, the vertical pipe is provided with an inner hole, a stirring structure is arranged on the outer surface of the vertical pipe, and a guide pipe extending into the inner side of the top plate is arranged on the aeration generator; the inner end of the guide pipe is communicated with an inner hole of the vertical pipe through a rotary joint, and a plurality of aeration heads communicated with the inner hole are further arranged on the outer surface of the vertical pipe. According to the utility model, the stirring structure of the vertical pipe pushes the water body of the sewage treatment tank, meanwhile, the aeration heads distributed on the outer surface of the vertical pipe release bubble groups, and the bubble groups are radially diffused to the surrounding water body and the corner area of the tank body, so that the distribution uniformity of dissolved oxygen is effectively improved, and the sewage treatment effect is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to an aeration device for wastewater treatment. Background Technology

[0002] Wastewater treatment is the process of separating, removing, recycling, or converting pollutants in wastewater into harmless substances using various technologies and methods, thereby purifying the wastewater. In wastewater treatment processes, aeration devices, also known as oxygenation devices, are commonly used equipment. Their main function is to inject air into the wastewater, promoting the metabolism and growth of microorganisms, thereby accelerating the decomposition of organic matter and the removal of nutrients such as nitrogen and phosphorus.

[0003] Existing aeration devices typically employ separate aeration and mixing components. For example, the aeration component releases air bubbles through aerators placed at the bottom of the tank, while the mixing component drives the water flow through the rotation of a curved impeller. However, the inventors found in practice that separate aeration and mixing components require separate installation and maintenance, making the device complex and increasing the difficulty and cost of operation. Utility Model Content

[0004] Therefore, it is necessary to provide an aeration device for wastewater treatment.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: An aeration device for sewage treatment includes a sewage treatment tank. At least one top plate is installed on the top of the sewage treatment tank. Several sewage treatment components are arranged on the top plate along the axial length direction. Each sewage treatment component includes a motor installed on the top plate, a vertical pipe driven by the motor to rotate, and an aeration generator. The lower end of the vertical pipe extends to the bottom of the sewage treatment tank. The vertical pipe has an inner hole and a stirring structure is provided on the outer surface of the vertical pipe. The aeration generator is provided with a conduit extending into the inner side of the top plate. The inner end of the conduit is connected to the inner hole of the vertical pipe through a rotary joint. The outer surface of the vertical pipe is also provided with multiple aeration heads communicating with the inner hole.

[0006] Furthermore, the rotating shaft of the motor passes through the inner side of the top plate, and the end of the rotating shaft is provided with a drive wheel, and the top of the vertical tube is provided with a driven wheel. The drive wheel and the driven wheel are linked by a synchronous belt.

[0007] Furthermore, the driving wheel, driven wheel, and synchronous belt are located above the liquid surface of the wastewater treatment tank.

[0008] Furthermore, the stirring structure includes a curved impeller disposed on the outer surface of the vertical pipe, the vertical pipe is provided with a plurality of the curved impellers along the length of the pipe, and the aeration head is provided in the section of the vertical pipe adjacent to the curved impeller at the bottom end.

[0009] Furthermore, the stirring structure also includes connecting rods disposed on both sides of the vertical tube, the connecting rods being connected to the vertical tube via connecting rods, and the outer surface of the connecting rods being provided with multiple blades.

[0010] Furthermore, a support base is provided at the bottom of the sewage treatment tank, and the end of the vertical pipe is pivotally connected to the support base.

[0011] Furthermore, the device also includes an aeration disc disposed between two adjacent wastewater treatment components. The aeration disc is located at the bottom of the wastewater treatment tank, and the aeration disc is further connected to an aeration connection pipe. The aeration connection pipe is located at the bottom of the wastewater treatment tank, and its air supply end is connected to the side wall of the wastewater treatment tank.

[0012] Furthermore, the aeration head is a one-way valve.

[0013] Furthermore, multiple aeration heads are evenly arranged radially along the vertical pipe.

[0014] By adopting the above technical solution, the present invention has at least the following beneficial effects: The present invention provides at least one top plate on the top of the sewage treatment tank and integrates multiple sewage treatment components on the top plate. Each sewage treatment component includes a motor, a vertical pipe, and an aerator. The vertical pipe has an internal bore structure, with its lower end extending to the bottom of the tank. The conduit of the aerator is connected to the inner bore of the vertical pipe through a rotary joint to achieve gas delivery. The motor is connected to the vertical pipe, allowing aeration and stirring to be carried out simultaneously. When the motor drives the vertical pipe to rotate, the stirring structure of the vertical pipe synchronously pushes the water in the sewage treatment tank. At the same time, the aerator heads distributed on the outer surface of the vertical pipe release bubble clusters. Under the action of centrifugal force generated by the rotation of the vertical pipe, the bubble clusters are radially diffused to the surrounding water and the corner areas of the tank, effectively improving the uniformity of dissolved oxygen distribution and improving the sewage treatment effect. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of an optional embodiment of the aeration device for wastewater treatment according to this utility model;

[0017] Figure 2 This is a schematic diagram of another optional embodiment of the aeration device for wastewater treatment according to this utility model.

[0018] In the attached diagram, 1 is the wastewater treatment tank; 11 is the support base; 2 is the top plate; 3 is the wastewater treatment component; 31 is the motor; 311 is the drive wheel; 32 is the vertical pipe; 321 is the aeration head; 322 is the driven wheel; 323 is the synchronous belt; 324 is the curved impeller; 325 is the connecting rod; 326 is the connecting rod; 327 is the blade; 33 is the aeration generator; 331 is the guide pipe; 332 is the rotary joint; 4 is the aeration disc; and 5 is the aeration connecting pipe. Detailed Implementation

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other. The technical solutions of the present invention will be further described below with reference to the accompanying drawings of the embodiments. The present invention is not limited to the specific embodiments described below.

[0020] It should be understood that the same or similar reference numerals in the accompanying drawings of the embodiments correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "front," "rear," "left," "right," "top," and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms describing positional relationships in the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0021] like Figure 1 and Figure 2 As shown, an optional embodiment of this utility model provides an aeration device for sewage treatment, including a sewage treatment tank 1. At least one top plate 2 is installed on the top of the sewage treatment tank 1. Several sewage treatment components 3 are arranged on the top plate 2 along the axial length direction. Each sewage treatment component 3 includes a motor 31 respectively installed on the top plate 2, a vertical pipe 32 driven by the motor 31 to rotate, and an aeration generator 33. The lower end of the vertical pipe 32 extends to the bottom of the sewage treatment tank 1. The vertical pipe 32 has an inner hole and a stirring structure is provided on the outer surface of the vertical pipe 32. The aeration generator 33 is provided with a conduit 331 extending into the inner side of the top plate 2. The inner end of the conduit 331 is connected to the inner hole of the vertical pipe 32 through a rotary joint 332. The outer surface of the vertical pipe 32 is also provided with a plurality of aeration heads 321 communicating with the inner hole.

[0022] This embodiment of the invention involves setting at least one top plate 2 on the top of the sewage treatment tank 1, and integrating multiple sewage treatment components 3 on the top plate 2. Each sewage treatment component 3 includes a motor 31, a vertical pipe 32, and an aeration generator 33. The vertical pipe 32 has an internal bore structure, with its lower end extending to the bottom of the tank. The conduit 331 of the aeration generator 33 is connected to the inner bore of the vertical pipe 32 through a rotary joint 332 to achieve gas delivery. The motor 31 is connected to the vertical pipe 32, allowing aeration and stirring to be carried out simultaneously. When the motor 31 drives the vertical pipe 32 to rotate, the stirring structure of the vertical pipe 32 synchronously pushes the water in the sewage treatment tank 1. At the same time, the aeration heads 321 distributed on the outer surface of the vertical pipe 32 release a cluster of bubbles. Under the action of the centrifugal force generated by the rotation of the vertical pipe 32, the bubble cluster is radially diffused to the surrounding water and the area at the corners of the tank, effectively improving the uniformity of dissolved oxygen distribution and effectively improving the sewage treatment effect.

[0023] In one optional embodiment of this utility model, such as Figure 1 and Figure 2 As shown, the rotating shaft 310 of the motor 31 passes through the inner side of the top plate 2, and a driving wheel 311 is provided at the end of the rotating shaft. A driven wheel 322 is provided at the top of the vertical pipe 32. The driving wheel 311 and the driven wheel 322 are linked by a synchronous belt 323. In this embodiment, by providing a driving wheel 311 and a driven wheel 322 respectively in the motor 31 and the vertical pipe 32, the synchronous belt 323 can stably and efficiently transmit the rotational power of the motor 31 to the vertical pipe 32, resulting in good stability of water stirring.

[0024] In one optional embodiment of this utility model, such as Figure 1 and Figure 2 As shown, the driving wheel 311, driven wheel 322, and timing belt 323 are located above the liquid surface of the wastewater treatment tank 1. In this embodiment, positioning the driving wheel 311, driven wheel 322, and timing belt 323 above the liquid surface of the wastewater treatment tank 1 effectively avoids direct contact with the water, extending the service life of the device. Furthermore, it allows for easy inspection or replacement of the driving wheel 311, driven wheel 322, and timing belt 323, reducing operational difficulty and safety risks.

[0025] In one optional embodiment of this utility model, such as Figure 1 and Figure 2As shown, the stirring structure includes a curved impeller 324 disposed on the outer surface of the vertical pipe 32. Multiple curved impellers 324 are disposed along the length of the vertical pipe 32, and an aeration head 321 is disposed in the section of the vertical pipe 32 adjacent to the curved impeller 324 at its bottom end. This embodiment, by providing a curved impeller 324 on the outer surface of the vertical pipe 32 and utilizing multiple curved impellers 324 along the length of the vertical pipe 32, increases the range and intensity of water stirring, thereby improving wastewater treatment efficiency. Simultaneously, the twisted surface of the curved impeller 324 can generate a certain vortex effect during stirring, further promoting full contact between pollutants in the water and the bubbles released by the aeration head 321. Furthermore, by placing the aeration head 321 in the section of the vertical pipe 32 adjacent to the curved impeller 324, aeration and stirring can be carried out synchronously, improving wastewater treatment efficiency.

[0026] In one optional embodiment of this utility model, such as Figure 1 and Figure 2 As shown, the stirring structure also includes connecting rods 325 disposed on both sides of the vertical tube 32. The connecting rods 325 are connected to the vertical tube 32 via connecting rods 326, and the outer surface of the connecting rods 325 has multiple blades 327. In this embodiment, by adding connecting rods 325 on both sides of the vertical tube 32 and connecting them to the vertical tube 32 via connecting rods 326, the stirring structure is further expanded based on the vertical tube 32. Furthermore, the multiple blades 327 on the outer surface of the connecting rods 325 increase the contact area for stirring and improve stirring efficiency.

[0027] In one optional embodiment of this utility model, such as Figure 2 As shown, a support base 11 is also provided at the bottom of the sewage treatment tank 1, and the end of the vertical pipe 32 is pivotally connected to the support base 11. In this embodiment, by providing a support base 11 at the bottom of the sewage treatment tank 1 and pivotally connecting the end of the vertical pipe 32 to the support base 11, the rotation of the vertical pipe 32 is made more stable.

[0028] In one optional embodiment of this utility model, such as Figure 2 As shown, the device also includes an aeration disc 4 disposed between two adjacent wastewater treatment components 3. The aeration disc 4 is located at the bottom of the wastewater treatment tank 1, and the aeration disc 4 is further connected to an aeration connecting pipe 5. The aeration connecting pipe 5 is located at the bottom of the wastewater treatment tank 1, and its air supply end is connected to the side wall of the wastewater treatment tank 1. In this embodiment, by adding an aeration disc 4 between two adjacent wastewater treatment components 3 and connecting it to the bottom of the wastewater treatment tank 1 via an aeration connecting pipe 5, while simultaneously connecting the air supply end of the aeration connecting pipe 5 to the side wall of the wastewater treatment tank 1, oxygen can be further supplied to the wastewater treatment tank 1, thereby improving the wastewater treatment effect.

[0029] In one optional embodiment of this utility model, such as Figure 1 and Figure 2 As shown, the aeration head 321 is a one-way valve. This embodiment, by setting the aeration head 321 with a one-way valve structure, ensures that the gas can only flow in one direction, effectively preventing sewage backflow, thereby improving the stability and durability of the entire device.

[0030] In one optional embodiment of this utility model, such as Figure 1 and Figure 2 As shown, multiple aeration heads are evenly arranged radially along the vertical pipe. This embodiment, by setting multiple evenly arranged aeration heads, ensures that gas can be evenly diffused to every corner of the wastewater treatment tank, thus helping to improve wastewater treatment efficiency.

[0031] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An aeration device for sewage treatment comprising a sewage treatment tank, characterized by, The top of the wastewater treatment tank is equipped with at least one top plate. Several wastewater treatment components are arranged on the top plate along the axial length direction. Each wastewater treatment component includes a motor installed on the top plate, a vertical pipe driven by the motor to rotate, and an aeration generator. The lower end of the vertical pipe extends to the bottom of the wastewater treatment tank. The vertical pipe has an inner hole and a stirring structure is provided on the outer surface of the vertical pipe. The aeration generator is provided with a conduit extending into the inner side of the top plate. The inner end of the conduit is connected to the inner hole of the vertical pipe through a rotary joint. The outer surface of the vertical pipe is also provided with multiple aeration heads that communicate with the inner hole.

2. The sewage treatment aeration device according to claim 1, characterized by The rotating shaft of the motor passes through the inner side of the top plate, and the end of the rotating shaft is provided with a drive wheel. The top of the vertical tube is provided with a driven wheel. The drive wheel and the driven wheel are linked by a synchronous belt.

3. The aerator for sewage treatment according to claim 2, characterized by The driving wheel, driven wheel, and timing belt are located above the liquid surface in the wastewater treatment tank.

4. The apparatus according to claim 1, wherein The stirring structure includes a curved impeller disposed on the outer surface of the vertical pipe. The vertical pipe is provided with a plurality of the curved impellers along the length of the pipe, and the aeration head is provided in the section of the bottom end of the vertical pipe adjacent to the curved impeller.

5. The aerator for sewage treatment according to claim 4, wherein The stirring structure also includes connecting rods on both sides of the vertical tube. The connecting rods are connected to the vertical tube by connecting rods, and the outer surface of the connecting rods is provided with multiple blades.

6. The apparatus according to claim 1, wherein The bottom of the sewage treatment tank is also provided with a support base, and the end of the vertical pipe is pivotally connected to the support base.

7. The aerator for sewage treatment according to claim 1, wherein The device also includes an aeration disc disposed between two adjacent wastewater treatment components. The aeration disc is located at the bottom of the wastewater treatment tank. The aeration disc is further connected to an aeration connection pipe, which is placed at the bottom of the wastewater treatment tank and its air supply end is connected to the side wall of the wastewater treatment tank.

8. The apparatus according to claim 1, wherein The aeration head is a one-way valve.

9. The aerator for sewage treatment according to claim 1, characterized by The aeration heads are arranged evenly along the radial direction of the vertical pipe.

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