Device for aerating and flushing inclined plate of high-efficiency sedimentation tank

Abstract

The utility model discloses an efficient sedimentation tank inclined plate aeration flushing device which comprises a sedimentation tank and an aeration flushing device arranged at the sedimentation tank, the sedimentation tank comprises a sedimentation area located in the center and an inclined plate located on the periphery, and the aeration flushing device comprises an air blower and an air outlet pipe arranged at the air outlet end of the air blower. The air outlet pipe is provided with a plurality of branch pipes which are respectively controlled by an electric control valve, and each branch pipe comprises a bypass flushing pipeline extending to the inclined plate and a central flushing pipeline extending to the settling zone. According to the device, firstly, the inclined plate is arranged to assist precipitation and falling, then the one-to-many pipeline is arranged to wash the inclined plate, meanwhile, air paths can be switched through the valve to achieve aeration, and one pipe has dual purposes; a rotating joint is arranged on a rotating shaft to be connected with an aeration pipeline, gas is conveyed to a mud scraping plate through a channel in the rotating shaft and is released to generate bubbles, and the movement of the bubbles is beneficial to stirring a water body to promote loosening and suspension of sludge.

Description

Technical Field

[0001] This utility model relates to the field of water treatment, and in particular to a device for high-efficiency inclined plate aeration and flushing of sedimentation tanks. Background Technology

[0002] Aeration and sedimentation are two key steps in water treatment. The bubbles and water flow generated by aeration fully mix the activated sludge with the wastewater, preventing sludge sedimentation and maintaining the contact efficiency between microorganisms and pollutants, which is a form of biochemical degradation. Sedimentation, on the other hand, separates the sludge from the clean water through gravity, ensuring system stability and effluent compliance, which is a form of physical separation.

[0003] Currently, in water treatment processes, aeration devices are installed in separate pipes and are only used to blow gas into the water to generate bubbles. In order to improve the sedimentation effect, inclined plates are generally installed around the sedimentation tank to provide more surface for attachment and settling. When water flows over the inclined plates, suspended particles are subjected to multiple effects such as gravity, water flow resistance, and collision with the surface of the inclined plates. Smaller particles may collide and aggregate on the surface of the inclined plates to form larger particles, which are easier to settle. At the same time, the inclination angle of the inclined plates also helps particles slide down the surface of the inclined plates to the bottom, reducing the residence time of particles in the water and improving sedimentation efficiency. However, when there is sediment at the inclined plates, the aeration device with separate pipes cannot wash the inclined plates.

[0004] Therefore, ordinary aeration devices cannot flush the inclined plates to promote particle falling into the sedimentation zone. Furthermore, to improve aeration efficiency, rotary aeration is generally required. For example, patent application number 201320744925.8 discloses a sludge scraper with an aeration component, installed in the sludge collection trough of a sedimentation tank. It includes a drive mechanism, a central rotating support, a sludge scraping component, an outlet weir plate, and an aeration component. The power output of the drive mechanism is linked to the sludge scraping component via the central rotating support, which is arranged along the axis of the sludge collection trough. The outlet weir plate is installed at the drain outlet of the sludge collection trough. An aeration component is installed below the outlet weir plate, including a central aeration pipe assembly and side aeration pipe assemblies arranged at the four corners of the sludge collection trough. Although this patent uses a rotary aeration structure, its drive shaft is located inside the aeration component, which makes it difficult to connect the sludge scraping component with the central aeration component. Utility Model Content

[0005] Based on the shortcomings of existing technologies, such as the lack of inclined plates in aeration components to promote sedimentation and the inadequacy of the connection between transmission and aeration structures in existing aeration devices, this utility model provides a device for efficient aeration and rinsing of inclined plates in sedimentation tanks.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0007] A high-efficiency inclined plate aeration and flushing device for sedimentation tank includes a sedimentation tank and an aeration and flushing device installed in the sedimentation tank. The sedimentation tank includes a sedimentation zone in the center and an inclined plate in the periphery. The aeration and flushing device includes a blower and an air outlet pipe installed at the air outlet end of the blower. The air outlet pipe has multiple branch pipes controlled by electrically controlled valves, wherein the branch pipes include a bypass flushing pipe extending to the inclined plate and a central flushing pipe extending to the sedimentation zone.

[0008] Preferably, a bridge mounting frame is provided above the sedimentation tank, and a drive motor is provided in the middle of the bridge mounting frame. The output end of the drive motor is provided with a rotating shaft that extends into the sedimentation tank. The output end of the rotating shaft is provided with a scraper. A rotary joint is provided on the rotating shaft. The inside of the rotating shaft is provided with an exhaust channel that communicates with the internal channel of the rotary joint. The scraper is provided with several small exhaust holes that communicate with the exhaust channel. The central flushing pipe is connected to the rotary joint to supply air to its internal channel.

[0009] Preferably, the rotary joint is a rotary joint with a rotating part and a fixed part. The rotating part is fixed on the rotating shaft, and the fixed part is connected to the central flushing pipeline.

[0010] Preferably, the transmission medium inlet of the rotary joint is located on the side.

[0011] Preferably, the exhaust holes are evenly spaced on the scraper blade.

[0012] Compared with the prior art, the advantages of this utility model are as follows: First, it uses inclined plates to assist sedimentation and descent. Then, it uses a multi-pipeline to flush the inclined plates while simultaneously switching the air path through a valve to achieve aeration, making one pipe serve two purposes. In addition, it uses a rotary joint on the rotating shaft to connect the aeration pipe and transmits gas to the scraper through the channel inside the rotating shaft, releasing and generating bubbles. The movement of the bubbles helps to agitate the water and promote the loosening and suspension of sludge. Attached Figure Description

[0013] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0014] Figure 1 This is a schematic diagram of the present application;

[0015] Figure 2 This is a top view of this application;

[0016] Figure 3This is a perspective view of the present application;

[0017] Figure 4 A three-dimensional view of the rotating shaft and scraper blade;

[0018] In the diagram: 10, sedimentation tank; 101, inclined plate; 102, sedimentation zone; 20, blower; 201, central flushing pipeline; 202, bypass flushing pipeline; 30, aeration flushing device; 301, sludge scraper; 3011, exhaust hole; 302, drive motor; 303, rotating shaft; 304, rotary joint. Detailed Implementation

[0019] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0020] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

[0021] This embodiment mainly describes the title of a device for high-efficiency inclined plate aeration and flushing of sedimentation tanks, as follows:

[0022] A device for high-efficiency inclined plate aeration and flushing of sedimentation tanks, such as Figure 1-4 As shown, the system includes a sedimentation tank 10 and an aeration and flushing device 30 installed in the sedimentation tank 10. The sedimentation tank 10 includes a central sedimentation zone 102 and an inclined plate 101 on the periphery. The aeration and flushing device 30 includes a blower 20 and an outlet pipe installed at the outlet end of the blower 20. The outlet pipe has multiple branch pipes controlled by electrically controlled valves, including a bypass flushing pipe 202 extending to the inclined plate 101 and a central flushing pipe 201 extending to the sedimentation zone 102. In this design, the inclined plate 101 guides and promotes sedimentation in the early stage, while enabling targeted flushing in the later stage. It can flush both the inclined plate 101 and the sedimentation zone 102, improving flushing efficiency and flexibility.

[0023] Preferably, a bridge mounting frame is provided above the sedimentation tank 10. A drive motor 302 is located in the middle of the bridge mounting frame. The output end of the drive motor 302 has a rotating shaft 303 extending into the sedimentation tank 10. A scraper blade 301 is located at the output end of the rotating shaft 303. A rotary joint 304 is provided on the rotating shaft 303. An exhaust channel communicating with the internal channel of the rotary joint 304 is provided inside the rotating shaft 303, and several small exhaust holes 3011 communicating with the exhaust channel are provided on the scraper blade 301. A central flushing pipe 201 is connected to the rotary joint 304 to supply air to its internal channel. This solution performs aeration and flushing simultaneously with sludge scraping, achieving synchronous sludge scraping and flushing and improving work efficiency.

[0024] Preferably, the rotary joint 304 is a rotary type, which has a rotating part and a fixed part. The rotating part is fixed on the rotating shaft 303, and the fixed part is connected to the central flushing pipe 201. This design ensures that the gas supply remains stable when the rotating shaft 303 rotates, avoiding airflow interruption caused by rotation.

[0025] Preferably, the transmission medium inlet of the rotary joint 304 is located on the side. This side-mounted location optimizes spatial layout, reduces interference with the central area, and facilitates connection and maintenance.

[0026] Preferably, the vent holes 3011 are evenly spaced on the scraper blade 301. The evenly spaced vent holes 3011 on the scraper blade 301 can ensure uniform airflow distribution, avoid excessively strong or weak local airflow, and improve the uniformity of the rinsing effect.

[0027] The rotary joint 304 includes an inner column and an outer shell. The inner column is fixedly sleeved on the rotating shaft 303 and has an annular groove. A radial channel is provided in the annular groove. An axial channel communicating with the radial channel is provided inside the rotating shaft 303. The axial channel is communicating with the channel inside the scraper 301. The outer shell has an air inlet that communicates with the annular groove. The outer shell is rotatably sealed to the inner column on the upper and lower sides of the annular groove.

[0028] The title provided above provides a detailed description of the present utility model. Specific examples have been used to illustrate the principles and implementation methods of the present utility model. The description of the above embodiments is only for the purpose of helping to understand the present utility model and its core ideas. It should be noted that for those skilled in the art, several improvements and modifications can be made to the present utility model without departing from the principles of the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. A high-efficiency inclined plate aeration and flushing device for sedimentation tanks, comprising a sedimentation tank and an aeration and flushing device disposed at the sedimentation tank, characterized in that, The sedimentation tank includes a sedimentation zone in the center and inclined plates on the periphery. The aeration and flushing device includes a blower and an air outlet pipe at the blower outlet. The air outlet pipe has multiple branch pipes controlled by electrically controlled valves, including a bypass flushing pipe extending to the inclined plates and a central flushing pipe extending to the sedimentation zone.

2. The device for high-efficiency inclined plate aeration and washing of a sedimentation tank according to claim 1, characterized in that, A bridge mounting frame is also provided above the sedimentation tank. A drive motor is located in the middle of the bridge mounting frame. The output end of the drive motor is provided with a rotating shaft that extends into the sedimentation tank. A scraper is provided at the output end of the rotating shaft. A rotary joint is provided on the rotating shaft. An exhaust channel is provided inside the rotating shaft that communicates with the internal channel of the rotary joint. Several small exhaust holes that communicate with the exhaust channel are provided on the scraper. The central flushing pipeline is connected to the rotary joint to supply air to its internal channel.

3. The device for high-efficiency inclined plate aeration and washing of a sedimentation tank according to claim 2, characterized in that, The rotary joint is a rotary joint with a rotating part and a fixed part. The rotating part is fixed on the rotating shaft, and the fixed part is connected to the central flushing pipeline.

4. The device for high-efficiency inclined plate aeration and washing of a sedimentation tank according to claim 3, characterized in that, The transmission medium inlet of the rotary joint is located on the side.

5. The device for high-efficiency inclined plate aeration and washing of a sedimentation tank according to claim 2, characterized in that, The exhaust holes are evenly spaced on the scraper blade.

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