Aeration device based on industrial wastewater treatment
By designing the aeration structure and guide parts of the aeration device, the problem that the aeration device is difficult to suspend the sludge at the bottom of the sewage pool is solved, the effective suspension and mixing of the sludge is achieved, and the oxygen dissolution efficiency and treatment efficiency are improved.
Patent Information
- Application Number
- CN202422948408.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-12-02
AI Technical Summary
When treating industrial wastewater containing a large amount of sludge, existing aeration devices have difficulty in suspending the sludge at the bottom of the sewage pool, resulting in a reduction in the volume of the sewage pool and a decrease in treatment efficiency.
An aeration device including an aeration fan, an air pipe assembly, a perforated aeration tube and an agitation structure was designed. The perforated aeration tube moves up and down through the collision of gas and water flow, agitating the sludge at the bottom of the pool. The stability is ensured by the cooperation of guide parts and springs, thereby achieving suspension and mixing of the sludge.
It improves the decomposition efficiency of sludge, increases the dissolution efficiency of oxygen, extends the effective volume of the sewage pool, and improves the biological treatment efficiency of wastewater.
Smart Images
Figure CN223480949U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of wastewater treatment technology, specifically to an aeration device for industrial wastewater treatment. Background Technology
[0002] In current industrial wastewater treatment processes, aeration devices play a crucial role. They not only provide the necessary oxygen to the wastewater tank, promoting microbial activity and improving the biological treatment efficiency of wastewater, but also maintain uniform mixing of the wastewater in the tank through pneumatic stirring, preventing excessive sludge deposition.
[0003] However, despite the crucial role of aeration devices in wastewater treatment, in practical applications, when treating industrial wastewater containing large amounts of sludge, while the aeration device can resuspend some of the sludge accumulated at the bottom of the wastewater tank during stirring, the airflow characteristics and the sludge's sedimentation state often make it difficult to reach and suspend the sludge at the very bottom. This sludge deposited at the bottom is not only difficult for microorganisms to decompose, but may also lead to a reduction in wastewater tank volume and treatment efficiency due to long-term accumulation, and may even cause secondary pollution.
[0004] Therefore, this application provides an aeration device for industrial wastewater treatment to solve the above problems. Utility Model Content
[0005] This application provides an aeration device for industrial wastewater treatment, aiming to solve the problems mentioned in the background art. While existing aeration devices can resuspend some of the sludge accumulated at the bottom of the wastewater tank due to their agitation effect, the flow characteristics of the airflow and the sedimentation state of the sludge often make it difficult to reach and suspend the sludge at the very bottom. This sludge deposited at the bottom is not only difficult for microorganisms to decompose, but may also lead to a reduction in the volume of the wastewater tank due to long-term accumulation.
[0006] To achieve the above objectives, this application provides the following technical solution: an aeration device for industrial wastewater treatment, comprising an aeration blower, an air pipe assembly disposed at the output end of the aeration blower, a perforated aeration pipe disposed at the end of the air pipe assembly, and an agitation structure for supporting and buffering the perforated aeration pipe.
[0007] To agitate the sludge accumulated at the bottom of the tank by moving the perforated aeration pipe downwards during aeration, thus resuspending it and mixing it with the wastewater, the agitation structure includes a fixed plate, a fixed seat mounted on the perforated aeration pipe, and a spring positioned between the fixed seat and the fixed plate. During aeration, an aeration blower supplies gas to the perforated aeration pipe through an air pipe assembly. The gas is ejected from the tiny pores of the perforated aeration pipe and collides with the wastewater. Due to the impact force of the gas, the perforated aeration pipe experiences an upward force, while the resistance of the water flow exerts a downward force. Under the combined action of these two forces, the perforated aeration pipe overcomes the spring force and moves up and down, creating an agitation effect. As the perforated aeration pipe moves downwards, its bottom directly impacts the wastewater at the bottom of the tank, suspending the sludge and mixing it with the wastewater. Simultaneously, the release of gas and the agitation increase the oxygen content in the wastewater, promoting microbial activity and improving the biological treatment efficiency of the wastewater. As aeration continues, the perforated aeration pipe moves up and down continuously under the elastic force of the spring, creating a continuous turbulence effect to ensure the continuous suspension of sludge and thorough mixing of wastewater.
[0008] To ensure the vertical lifting and lowering movement of the perforated aeration pipe, a guide component is provided between the fixed plate and the fixed base, inserted into the spring for the lifting and lowering movement of the perforated aeration pipe. The guide component includes a fixed sleeve fixedly connected to the fixed plate, a limiting plate slidably disposed within the fixed sleeve, and a lifting rod slidably inserted into the fixed sleeve and fixedly connected to the limiting plate. The lifting rod is fixedly connected to the fixed base. The design of the guide component ensures the stability of the perforated aeration pipe during lifting and lowering, avoiding lateral displacement caused by airflow and water impact, and improving the reliability and durability of the device.
[0009] Preferably, to improve the agitation effect on the sludge at the bottom of the tank: a fixed sleeve plate is fixedly fitted onto the fixed sleeve, the spring is located between the fixed sleeve plate and the fixed seat, and a through groove is formed on the fixed sleeve corresponding to the space between the fixed plate and the fixed sleeve plate. By adding the fixed sleeve plate and the through groove, when the perforated aeration pipe descends, not only is the spring compressed, but the downward movement of the limiting plate within the fixed sleeve also compresses the water flow, causing the water to be discharged through the through groove and impacting the sludge at the bottom of the tank, further improving the sludge suspension effect.
[0010] Preferably, to facilitate the lifting and lowering movement of the perforated aeration pipe: the air pipe assembly includes a first air pipe fixedly connected to the perforated aeration pipe, a second air pipe slidably inserted into the first air pipe and connected to the output end of the aeration blower, and a piston slidably disposed within the first air pipe and fixedly fitted onto the second air pipe. The sliding seal of the piston within the first air pipe ensures the continuity and stability of the airflow during the lifting and lowering movement of the perforated aeration pipe, avoiding airflow interruptions or leaks caused by the movement.
[0011] Preferably, to facilitate intermittent control of the aeration device, a solenoid valve is fixedly installed on the second air pipe. Controlling the solenoid valve allows for intermittent operation of the aeration device, thus avoiding excessive energy consumption and over-suspension of sludge caused by continuous aeration. Intermittent aeration is beneficial for sludge settling and wastewater purification. Intermittent aeration reduces the continuous operating time of the aeration device, thereby lowering energy consumption.
[0012] Preferably, to improve the sealing performance between the piston and the first gas tube, a sealing ring is provided on the piston to seal the gap between the piston and the first gas tube. The sealing ring is made of an elastic material, such as rubber or silicone, which has good elasticity and wear resistance, preventing gas leakage during sliding and ensuring the continuity and stability of the airflow.
[0013] This application utilizes an agitation structure design, allowing the perforated aeration pipes to move up and down during aeration, effectively impacting the sludge at the bottom of the tank, suspending it, and thoroughly mixing it with the wastewater, thereby improving sludge decomposition efficiency. The up-and-down movement of the perforated aeration pipes increases the contact area and time between the gas and wastewater, enhancing oxygen dissolution efficiency. Continuous agitation reduces sludge deposition at the bottom of the tank, extending the effective volume of the wastewater tank and improving treatment efficiency. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of an aeration device for industrial wastewater treatment.
[0015] Figure 2 for Figure 1 A cross-sectional view of the connection between the turbulence structure and the guide component;
[0016] Figure 3 for Figure 1 Cross-sectional view of the middle airway assembly.
[0017] In the picture:
[0018] 1. Aeration blower; 2. Air pipe assembly; 21. First air pipe; 22. Second air pipe; 221. Solenoid valve; 23. Piston; 231. Sealing ring; 3. Perforated aeration pipe; 4. Agitation structure; 41. Fixing plate; 42. Fixing seat; 43. Spring; 5. Guide component; 51. Fixing sleeve; 511. Fixing sleeve plate; 512. Through groove; 52. Limiting plate; 53. Lifting rod. Detailed Implementation
[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0020] This embodiment provides an aeration device for industrial wastewater treatment, such as... Figure 1-3 As shown, the aeration device includes an aeration blower 1, an air pipe assembly 2 located at the output end of the aeration blower 1, a perforated aeration pipe 3 located at the end of the air pipe assembly 2, and an agitation structure 4 for supporting and buffering the perforated aeration pipe 3.
[0021] To agitate the perforated aeration pipe 3 downwards during aeration by the impact of gas and water flow, thus resuspending the sludge accumulated at the bottom of the tank and mixing it with the wastewater, the agitation structure 4 includes a fixed plate 41, a fixed seat 42 fixedly mounted on the perforated aeration pipe 3, and a spring 43 positioned between the fixed seat 42 and the fixed plate 41. Through the design of the agitation structure 4, the perforated aeration pipe 3 can move up and down during aeration, effectively impacting the sludge at the bottom of the tank, suspending it, and thoroughly mixing it with the wastewater, thereby improving the sludge decomposition efficiency. The up-and-down movement of the perforated aeration pipe 3 increases the contact area and time between the gas and wastewater, improving the oxygen dissolution efficiency. Continuous agitation reduces sludge deposition at the bottom of the tank, extends the effective volume of the wastewater tank, and improves treatment efficiency. During aeration, the aeration blower 1 delivers gas to the perforated aeration pipe 3 through the air pipe assembly 2. The gas is ejected from the tiny pores of the perforated aeration pipe 3 and impacts the wastewater. Due to the impact force of the gas, the perforated aeration pipe 3 experiences an upward force, while the resistance of the water flow exerts a downward force on it. Under the combined action of these two forces, the perforated aeration pipe 3 overcomes the elastic force of the spring 43 and moves up and down, creating a turbulent effect. As the perforated aeration pipe 3 moves downward, its bottom directly impacts the wastewater at the bottom of the tank, suspending the sludge and mixing it with the wastewater. Simultaneously, the release of gas and the turbulent effect increase the oxygen content in the wastewater, promoting microbial activity and improving the biological treatment efficiency of the wastewater. As aeration continues, the perforated aeration pipe 3 moves continuously up and down under the elastic force of the spring 43, creating a continuous turbulent effect, ensuring the continuous suspension of sludge and thorough mixing of the wastewater.
[0022] To ensure the vertical lifting and lowering movement of the perforated aeration pipe 3, a guide component 5 is provided between the fixed plate 41 and the fixed base 42, inserted into the spring 43 for the lifting and lowering movement of the perforated aeration pipe 3. The guide component 5 includes a fixed sleeve 51 fixedly connected to the fixed plate 41, a limiting plate 52 slidably disposed within the fixed sleeve 51, and a lifting rod 53 slidably inserted into the fixed sleeve 51 and fixedly connected to the limiting plate 52. The lifting rod 53 is fixedly connected to the fixed base 42. The design of the guide component 5 ensures the stability of the perforated aeration pipe 3 during the lifting and lowering process, avoids lateral deviation caused by airflow and water flow impact, and improves the reliability and durability of the device. During the aeration process, when gas is ejected from the perforated aeration pipe 3, the resulting impact force and water flow resistance work together to cause the perforated aeration pipe 3 to move up and down. At this time, the guide component 5 plays a crucial guiding and limiting role. After the gas is ejected, the perforated aeration pipe 3 experiences a downward force, which drives the limiting plate 52 to slide downward within the fixed sleeve 51 via the lifting rod 53, while the spring 43 is compressed. When the gas impact force weakens or the water flow resistance increases, the perforated aeration pipe 3 moves upward under the elastic force of the spring 43, sliding upward within the fixed sleeve 51 via the lifting rod 53 and the limiting plate 52, until it is impacted by gas again or reaches a state of equilibrium. During this process, the guide member 5 ensures that the lifting and lowering movement of the perforated aeration pipe 3 always proceeds along the axial direction of the fixed sleeve 51, avoiding lateral deviation and unnecessary vibration, thereby improving the stability of the device and the sludge suspension effect.
[0023] Furthermore, to improve the agitation effect on the sludge at the bottom of the tank: a fixed sleeve plate 511 is fixedly fitted onto the fixed sleeve 51, and a spring 43 is located between the fixed sleeve plate 511 and the fixed seat 42. A through groove 512 is provided on the fixed sleeve 51 between the fixed plate 41 and the fixed sleeve plate 511. By adding the fixed sleeve plate 511 and the through groove 512, when the perforated aeration pipe 3 descends, not only is the spring 43 compressed, but the limiting plate 52 also compresses the water flow as it moves down within the fixed sleeve 51. This causes the water to be discharged through the through groove 512 and impact the sludge at the bottom of the tank, further improving the sludge suspension effect. The opening of the through groove 512 not only realizes the discharge and impact effect of the water flow, but also optimizes the flow path of the water flow within the fixed sleeve 51, improving the efficiency of water resource utilization. During the aeration process, when the gas is ejected from the perforated aeration pipe 3, the impact force generated and the water flow resistance work together to cause the perforated aeration pipe 3 to move up and down. At this point, the guide component 5 and the fixed sleeve 51 play a crucial role in guiding, limiting, and impacting the water flow. After the gas is ejected, the perforated aeration pipe 3 is subjected to a downward force, which drives the limiting plate 52 to slide downward within the fixed sleeve 51 via the lifting rod 53, while the spring 43 is compressed. During this process, the water flow within the fixed sleeve 51 is gradually squeezed and moved downward by the limiting plate 52. The squeezed water flow is quickly discharged through the channel 512, generating a strong impact on the sludge at the bottom of the pool, causing the sludge settled at the bottom of the pool to mix with the sewage again. When the gas impact force weakens or the water flow resistance increases, the perforated aeration pipe 3 moves upward under the elastic force of the spring 43. At this time, the limiting plate 52 slides upward within the fixed sleeve 51. In this process, the design of the guide component 5 and the fixed sleeve 51 not only ensures the stability of the lifting and lowering movement of the perforated aeration pipe 3, but also achieves an effective impact and suspension effect on the sludge at the bottom of the pool through the squeezing and discharge of the water flow.
[0024] Specifically, to facilitate the lifting and lowering movement of the perforated aeration pipe 3, the air pipe assembly 2 includes a first air pipe 21 fixedly connected to the perforated aeration pipe 3, a second air pipe 22 slidably inserted into the first air pipe 21 and connected to the output end of the aeration blower 1, and a piston 23 slidably disposed within the first air pipe 21 and fixedly fitted onto the second air pipe 22. The sliding seal of the piston 23 within the first air pipe 21 ensures the continuity and stability of the airflow during the lifting and lowering movement of the perforated aeration pipe 3, avoiding airflow interruption or leakage caused by movement. During aeration, the aeration blower 1 supplies gas to the first air pipe 21 and the perforated aeration pipe 3 through the second air pipe 22. When the perforated aeration pipe 3 moves up and down due to gas impact force or water flow resistance, the second air pipe 22 slides within the first air pipe 21, while the piston 23 maintains the airflow seal. When the perforated aeration pipe 3 is subjected to an upward force, it causes the first air pipe 21 and the second air pipe 22 to rise together. During this process, the piston 23 slides upward within the first air pipe 21. When the perforated aeration pipe 3 is subjected to a downward force, it causes the first air pipe 21 to descend relative to the second air pipe 22. At this time, the piston 23 slides downward within the first air pipe 21.
[0025] More specifically, to facilitate the intermittent start-up of the aeration device, a solenoid valve 221 is fixedly installed on the second air pipe 22. Controlled by the solenoid valve 221, the aeration device can be started intermittently, thus avoiding excessive energy consumption and excessive sludge suspension caused by continuous aeration. Intermittent aeration is beneficial for sludge settling and wastewater purification. Intermittent aeration reduces the continuous operating time of the aeration device, thereby reducing energy consumption. During aeration, the solenoid valve 221 controls the flow of gas in the second air pipe 22 according to a preset control program or an external control signal. When the solenoid valve 221 receives an opening signal, its internal electromagnet is energized, generating a magnetic force that attracts the valve core, thereby opening the gas passage. At this time, the aeration blower 1 delivers gas to the first air pipe 21 and the perforated aeration pipe 3 through the second air pipe 22 for aeration. When the solenoid valve 221 receives a closing signal, its internal electromagnet is de-energized, the magnetic force disappears, and the valve core resets under the action of the spring, closing the gas passage. At this point, the aeration device stops working, and gas is no longer supplied to the perforated aeration pipe 3. Intermittent pneumatic control of the aeration device can be achieved by periodically opening and closing the solenoid valve 221, thereby realizing intermittent oxygenation and agitation of the wastewater at the bottom of the tank. This control method not only facilitates sludge settling and wastewater purification but also reduces energy consumption and improves treatment efficiency.
[0026] To improve the sealing between the piston 23 and the first gas pipe 21, a sealing ring 231 is provided on the piston 23 to seal the gap between the piston 23 and the first gas pipe 21. The sealing ring 231 is made of an elastic material, such as rubber or silicone, which has good elasticity and wear resistance, prevents gas leakage during sliding, and ensures the continuity and stability of airflow.
[0027] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.
Claims
1. An aeration device for industrial wastewater treatment, comprising an aeration blower (1), an air pipe assembly (2) disposed at the output end of the aeration blower (1), a perforated aeration pipe (3) disposed at the end of the air pipe assembly (2), and an agitation structure (4) for supporting and buffering the perforated aeration pipe (3). Its features are: The agitation structure (4) includes a fixing plate (41), a fixing seat (42) fixedly mounted on the perforated aeration pipe (3), and a spring (43) disposed between the fixing seat (42) and the fixing plate (41). A guide (5) is provided between the fixed plate (41) and the fixed seat (42), which is inserted into the spring (43) for the lifting and lowering movement of the perforated aeration pipe (3).
2. The aeration device for industrial wastewater treatment according to claim 1, characterized in that: The guide member (5) includes a fixed sleeve (51) fixedly connected to the fixed plate (41), a limiting plate (52) slidably disposed in the fixed sleeve (51), and a lifting rod (53) slidably inserted into the fixed sleeve (51) and fixedly connected to the limiting plate (52). The lifting rod (53) is fixedly connected to the fixed seat (42).
3. The aeration device for industrial wastewater treatment according to claim 2, characterized in that: A fixing plate (511) is fixedly fitted on the fixing sleeve (51), and the spring (43) is located between the fixing plate (511) and the fixing seat (42). A through groove (512) is provided on the fixing sleeve (51) corresponding to the space between the fixing plate (41) and the fixing plate (511).
4. The aeration device for industrial wastewater treatment according to claim 1, characterized in that: The air pipe assembly (2) includes a first air pipe (21) fixedly connected to the perforated aeration pipe (3), a second air pipe (22) slidably inserted into the first air pipe (21) and connected to the output end of the aeration blower (1), and a piston (23) slidably disposed in the first air pipe (21) and fixedly fitted onto the second air pipe (22).
5. The aeration device for industrial wastewater treatment according to claim 4, characterized in that: A solenoid valve (221) is fixedly installed on the second air pipe (22).
6. The aeration device for industrial wastewater treatment according to claim 4, characterized in that: The piston (23) is provided with a sealing ring (231) for sealing the gap between the piston (23) and the first air pipe (21).