Low-oxygen aeration sewage biological treatment device

Abstract

The utility model relates to a low-oxygen aeration sewage biological treatment device, which comprises a floating body and a working box, the working box is installed on the floating body, an aeration assembly is arranged in the working box, the aeration assembly comprises a fan, a gas transmission frame, an aeration box and an end socket, the fan is installed in the working box, the gas transmission frame is installed in the aeration box, and the aeration box is installed in the working box. The air conveying frame is installed at the air outlet end of the fan, the multiple aeration boxes are arranged at the bottom of the air conveying frame in a communicating mode, the top ends of the aeration boxes are provided with aeration grooves, the side walls of the aeration grooves are provided with multiple aeration holes, the end sockets are arranged in the aeration grooves in a sliding fit mode, and when the end sockets are closed, the end sockets block the aeration grooves. And a driving assembly for driving the sealing head to reciprocate is arranged in the aeration box. The device has the effect of improving the applicability of the biological sewage treatment device.

Description

Technical Field

[0001] This application relates to the field of aeration equipment technology, and in particular to a low-oxygen aeration biological wastewater treatment device. Background Technology

[0002] Aerators are essential equipment for aeration and oxygenation in water supply and drainage systems. They can be classified into surface aerators and underwater aerators based on their usage. Aerators are characterized by simple structure, high oxygen utilization rate, and stable performance.

[0003] Chinese Patent CN119430466A discloses a low-carbon and environmentally friendly wastewater treatment system and method, which includes a filter tank, a first air pump installed on the filter tank, and a lifting assembly. The lifting assembly is installed on the inner wall of the top of the filter tank, and a connecting pipe is installed at the bottom of the lifting assembly. A first air guide pipe is installed inside the lifting assembly. One end of the first air guide pipe is connected to the first air pump for air guiding, and the other end is connected to the connecting pipe. Several aeration pipes are rotatably connected around the center of the bottom of the connecting pipe. The centers of the several aeration pipes are interconnected. The aeration pipes are connected to the connecting pipe, and several aeration nozzles are symmetrically connected above both ends of the aeration pipes for vertical aeration. Horizontal high-pressure nozzles are symmetrically connected below both ends of the aeration pipes to provide a power source for the rotation of the aeration pipes. Angled high-pressure nozzles are symmetrically connected below both ends of the aeration pipes to aerate the area below the aeration pipes.

[0004] Regarding the aforementioned technologies, existing technologies utilize a first and a second air pump to deliver gas through a connecting pipe, ultimately expelling it from the aeration nozzle to achieve wastewater aeration. However, wastewater contains numerous impurities such as microorganisms and algae, and the aeration nozzles remain submerged for extended periods. If the first and second air pumps are not operating, these impurities can easily adhere to the nozzles, potentially clogging them. This reduces the aeration volume of the wastewater treatment system, necessitates frequent nozzle maintenance, and diminishes the system's applicability. Summary of the Invention

[0005] To improve the applicability of wastewater biological treatment devices, this application provides a low-oxygen aeration wastewater biological treatment device.

[0006] The low-oxygen aeration biological wastewater treatment device provided in this application adopts the following technical solution:

[0007] A low-oxygen aerated wastewater biological treatment device includes a floating body and a working box. The working box is installed on the floating body and an aeration assembly is provided inside the working box. The aeration assembly includes a blower, an air conveying frame, an aeration box, and a sealing head. The blower is installed inside the working box, and the air conveying frame is installed at the air outlet of the blower. Several aeration boxes are connected and arranged at the bottom of the air conveying frame. An aeration groove is opened at the top of the aeration box, and several aeration holes are opened on the side wall of the aeration groove. The sealing head is slidably fitted in the aeration groove. When closed, the sealing head blocks the aeration groove. A driving component is provided inside the aeration box to drive the sealing head to reciprocate.

[0008] By adopting the above technical solution, during aeration, the blower is started, allowing air to enter the aeration box through the air conveyor. At this time, the drive component causes the end caps to move back and forth within the aeration trough, while air is intermittently aerated through the aeration holes, achieving the effect of internal aeration of the wastewater. The drive component moves the end caps, causing them to repeatedly open the aeration holes, thus regulating the oxygenation rate of the wastewater biological treatment device. Simultaneously, nearby wastewater is monitored, and the blower's airflow and the end cap's movement frequency are adjusted based on the monitoring results. This minimizes blower energy consumption while ensuring the wastewater treatment efficiency of the biological treatment device. When operation stops, the end caps block the aeration trough. Compared to existing technologies, this reduces the possibility of aeration hole blockage, allowing the wastewater biological treatment device to operate underwater for extended periods, reducing the frequency of aeration box maintenance, and improving the applicability of the wastewater biological treatment device.

[0009] Optionally, the drive assembly includes a drive motor, a rotating disk, a connecting column, and a return spring. The connecting column is connected to the end cap and slides with the aeration box. A connecting ring is connected to the connecting column. The return spring is sleeved on the connecting column and located between the connecting ring and the bottom wall of the aeration tank. A connecting frame is provided inside the aeration box. The rotating disk is rotatably connected to the connecting frame and is eccentrically positioned. The drive motor is mounted on the connecting frame and connected to the rotating disk. The rotating disk abuts against the bottom end of the connecting column.

[0010] By adopting the above technical solution, when driving the end cap, the drive motor is started to make the rotating disk rotate, thereby applying force to the connecting column. The connecting column rises, the return spring is compressed, and after the rotating disk rotates 180 degrees, the connecting column moves in the opposite direction under the force of the return spring, ensuring that the bottom end of the connecting column is always in contact with the rotating disk, thus achieving the effect of driving the end cap to move back and forth.

[0011] Optionally, the surface of the connecting column is provided with a corrugated annular groove, and a connecting flange is connected to the aeration box, the connecting flange being slidably fitted within the corrugated annular groove.

[0012] By adopting the above technical solution, when the connecting column moves, the connecting flange and the corrugated groove slide together, thereby driving the connecting column to rotate, achieving the effect of rotation when the end cap moves. This ensures that impurities in the sewage will not concentrate and adhere to local areas of the end cap.

[0013] Optionally, the arc surface of the end cap has several temporary storage arc grooves.

[0014] By adopting the above technical solution, although the water inside the aeration tank will be squeezed out when the end cap closes the aeration tank, there is still a possibility of sewage residue, which can easily cause impurities to be squeezed into the aeration holes. By setting up a temporary storage arc trough, the sewage residue will be concentrated in the temporary storage arc trough as much as possible; at the same time, the end cap will rotate when it moves, and the wall thickness between adjacent temporary storage arc troughs can scrape off impurities on the surface of the aeration tank. Both of these measures can reduce the possibility of impurities clogging the aeration holes.

[0015] Optionally, a sealing ring is connected inside the aeration box, and a sealing ring is installed on the connecting ring. The connecting ring abuts against the inner wall of the sealing ring, and the sealing ring is located between the sealing ring and the connecting ring. A closed space is formed between the sealing ring, the connecting ring, and the connecting post.

[0016] By adopting the above technical solution, when the connecting column moves, there is a possibility that water inside the aeration tank may enter the aeration box through the corrugated ring groove. By setting up a closed ring and a sealing ring, a closed space is formed between the closed ring, the connecting ring, and the connecting column, reducing the possibility of sewage entering the aeration box.

[0017] Optionally, the working box is provided with a moving component, which includes a moving motor, a rotating shaft and helical blades. The moving motor is installed obliquely inside the working box. The rotating shaft is rotatably connected to the working box and is coaxially arranged with the output shaft of the moving motor. Several helical blades are connected to the end of the rotating shaft away from the moving motor, and the helical blades are located below the working box.

[0018] By adopting the above technical solution, after the organic matter in the sewage in a certain area is decomposed and treated, the mobile motor can be started to make the rotating shaft rotate, which drives the spiral blades to rotate in the water, thereby driving the float to move to other areas, realizing the position adjustment effect of the sewage biological treatment device in the water.

[0019] Optionally, the air supply frame includes a main pipe, an air distribution box, and an air supply pipe. One end of the main pipe is connected to the air outlet of the blower, and the other end is connected to the air distribution box via a flange. The air supply pipe connects the air distribution box and the aeration box.

[0020] By adopting the above technical solution, and by making the gas distribution box and the main pipe detachable, it is convenient for staff to clean the inside of the gas distribution box during maintenance, reducing the possibility of the gas delivery frame being blocked by impurities.

[0021] Optionally, the surface of the float is equipped with several lifting rings.

[0022] By adopting the above technical solution, the lifting ring is used to assist in transportation and restrict the movement of the floating body. During transportation, the lifting ring can be lifted by a lifting device; when restricting the movement of the floating body in the water, the lifting ring and the shore can be connected by a steel wire rope to achieve the effect of restricting the movement of the floating body.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. During aeration, the blower is started, allowing air to enter the aeration box through the air conveyor. At this time, the drive assembly causes the end caps to move back and forth within the aeration trough, while air is intermittently aerated through the aeration holes, achieving the effect of internal aeration of the wastewater. The drive assembly moves the end caps, causing them to repeatedly open the aeration holes, thus regulating the oxygenation rate of the wastewater biological treatment device. Simultaneously, nearby wastewater is monitored, and the blower's airflow and the end cap's movement frequency are adjusted based on the monitoring results. This aims to minimize blower energy consumption while ensuring the wastewater treatment efficiency of the biological treatment device. When operation stops, the end caps block the aeration trough. Compared to existing technologies, this reduces the possibility of aeration hole blockage, allowing the wastewater biological treatment device to operate underwater for extended periods, reducing the frequency of aeration box maintenance, and improving the applicability of the wastewater biological treatment device.

[0025] 2. By setting up aeration tanks, wastewater residue will be concentrated in the temporary storage arc tank as much as possible; at the same time, the end caps will rotate when they move, and the wall thickness between adjacent temporary storage arc tanks can scrape off impurities on the surface of the aeration tank. Both of these measures can reduce the possibility of impurities clogging the aeration holes. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the wastewater biological treatment device in the embodiments of this application.

[0027] Figure 2 This is a schematic diagram of the aeration component in an embodiment of this application.

[0028] Figure 3 This is an exploded view used to illustrate the structure of the aeration box in the embodiments of this application.

[0029] Figure 4 This is a cross-sectional view used in the embodiments of this application to illustrate the internal structure of the aeration box.

[0030] Figure 5 yes Figure 4 Enlarged view of point A in the middle.

[0031] Figure 6 This is a cross-sectional view used to illustrate the structure of the mobile component in the embodiments of this application.

[0032] Explanation of reference numerals in the attached drawings: 1. Float; 11. Working box; 12. Lifting ring; 2. Aeration assembly; 21. Blower; 22. Air delivery frame; 221. Main pipe; 222. Air distribution box; 223. Air delivery pipe; 23. Aeration box; 231. Aeration trough; 232. Aeration hole; 233. Connecting flange; 234. Sealing ring; 24. End cap; 241. Temporary storage arc groove; 3. Drive assembly; 31. Drive motor; 32. Rotating disk; 33. Connecting column; 331. Wave ring groove; 332. Connecting ring; 333. Sealing ring; 34. Return spring; 4. Moving assembly; 41. Moving motor; 42. Rotating shaft; 43. Spiral blade. Detailed Implementation

[0033] The following is in conjunction with the appendix Figures 1-6 This application will be described in further detail.

[0034] This application discloses a low-oxygen aeration biological wastewater treatment device. (Refer to...) Figure 1 The low-oxygen aeration biological wastewater treatment device includes a float 1 and a working box 11, with the working box 11 fixedly connected to the float 1. Several lifting rings 12 are threaded onto the float 1, which are used to assist in transporting the float 1 or to restrict its movement.

[0035] Reference Figure 2 An aeration assembly 2 is installed on the working box 11. The aeration assembly 2 includes a blower 21, an air conveying frame 22, an aeration box 23, and a sealing head 24. The blower 21 is installed on the working box 11. The air conveying frame 22 includes a main pipe 221, an air distribution box 222, and air conveying pipes 223. One end of the main pipe 221 is fixedly connected to the air outlet of the blower 21, and the other end is connected to the air distribution box 222 through a flange. Several air conveying pipes 223 are fixedly connected to the air distribution box 222; in this embodiment, four pipes are used as an example. The separate arrangement of the main pipe 221 and the air distribution box 222 facilitates cleaning the inside of the air distribution box 222.

[0036] Reference Figure 2 and Figure 3 The aeration box 23 is fixedly connected to the end of the air supply pipe 223 away from the air distribution box 222. The top of the aeration box 23 has an aeration groove 231. The aeration groove 231 is set in the shape of a frustum, with the smaller end facing down. Several aeration holes 232 are opened on the arc wall of the aeration groove 231.

[0037] Reference Figure 3 The end cap 24 is installed inside the aeration tank 231, and several temporary storage arc grooves 241 are opened on the arc wall of the end cap 24. The temporary storage arc grooves 241 are used to temporarily store sewage that has not been discharged in time.

[0038] Reference Figure 3 and Figure 4 The aeration box 23 is equipped with a drive assembly 3, which includes a drive motor 31, a rotating disk 32, a connecting column 33, and a return spring 34. The connecting column 33 is vertically fixed to the bottom wall of the end cap 24. A sliding hole is opened on the bottom wall of the aeration groove 231, and several connecting flanges 233 are fixedly connected in the sliding hole. In this embodiment, two flanges are used as an example. The connecting column 33 passes through the sliding hole, and a wave ring groove 331 is opened on the arc surface of the connecting column 33. The connecting flanges 233 slide in the wave ring groove 331.

[0039] Reference Figure 3 and Figure 4 A connecting frame is fixedly connected inside the aeration box 23. A rotating disk 32 is eccentrically rotatably connected to the connecting frame. A drive motor 31 is mounted on the connecting frame and fixedly connected to the rotating disk 32. The rotating disk 32 abuts against the bottom end of the connecting column 33. A connecting ring 332 is fixedly connected to the bottom end of the connecting column 33. A return spring 34 is sleeved on the connecting column 33 and located between the connecting ring 332 and the aeration box 23.

[0040] Reference Figure 3 and Figure 5 A sealing ring 234 is fixedly connected inside the aeration box 23. A connecting ring 332 is fitted inside the sealing ring 234. A sealing ring 333, which is a rubber ring, is installed on the connecting ring 332. The sealing ring 333 is located between the sealing ring 234 and the connecting ring 332, forming a closed space between the sealing ring 234, the connecting ring 332, and the connecting post 33. The closed space is used to temporarily store sewage leaking from the corrugated annular groove 331.

[0041] During aeration, the blower 21 is started, allowing air to enter the aeration box 23 through the air conveyor 22. At the same time, the drive motor 31 is started, causing the rotating disk 32 to rotate eccentrically. In conjunction with the reset spring 34, the connecting column 33 is driven to move back and forth, causing the end cap 24 to intermittently block the aeration groove 231, allowing air to be discharged intermittently from the aeration hole 232, thus achieving the aeration effect.

[0042] Reference Figure 6 To facilitate adjustment of the position of the wastewater biological treatment device in the wastewater, a moving assembly 4 is provided on the working box 11. The moving assembly 4 includes a moving motor 41, a rotating shaft 42, and spiral blades 43. The rotating shaft 42 is rotatably mounted through the bottom wall of the working box 11 and is inclined. The moving motor 41 is installed inside the working box 11 and is coaxially connected to the rotating shaft 42. Several spiral blades 43 are mounted on the end of the rotating shaft 42 away from the moving motor 41 and are located below the working box 11.

[0043] When adjusting the position of the wastewater biological treatment device, the mobile motor 41 is started, causing the rotating shaft 42 to rotate, which drives the spiral blade 43 to rotate in the wastewater, thereby driving the float 1 to move to the designated position on the surface of the wastewater, thus achieving the effect of adjusting the position of the wastewater biological treatment device.

[0044] The implementation principle of a low-oxygen aeration biological wastewater treatment device according to an embodiment of this application is as follows: During aeration, the blower 21 is started, so that air enters the aeration box 23 through the air conveyor 22. At the same time, the drive motor 31 is started, so that the rotating disk 32 rotates. With the help of the reset spring 34, the connecting column 33 moves back and forth. At the same time, it rotates through the cooperation of the connecting flange 233 and the corrugated ring groove 331, which drives the end cap 24 to intermittently close the aeration holes 232, so as to achieve the aeration effect of the biological wastewater treatment device.

[0045] The drive component 3 drives the end cap 24 to move, causing the end cap 24 to repeatedly open the aeration holes 232, thereby regulating the oxygenation rate of the wastewater biological treatment device. At this time, the nearby wastewater is detected, and the air volume of the blower 21 and the moving frequency of the end cap 24 are adjusted according to the detection results. This minimizes the energy consumption of the blower 21 while ensuring the wastewater treatment efficiency of the wastewater biological treatment device. When the device stops working, the end cap 24 blocks the aeration tank 231. Compared with the existing technology, this reduces the possibility of the aeration holes 232 being blocked, allowing the wastewater biological treatment device to work underwater for a long time, reducing the maintenance frequency of the aeration box 23, and improving the applicability of the wastewater biological treatment device.

[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A low-oxygen aerated wastewater biological treatment device, comprising a float (1) and a working box (11), wherein the working box (11) is mounted on the float (1), characterized in that: An aeration assembly (2) is provided inside the working box (11). The aeration assembly (2) includes a blower (21), an air conveying frame (22), an aeration box (23), and a sealing head (24). The blower (21) is installed inside the working box (11). The air conveying frame (22) is installed at the air outlet of the blower (21). Several aeration boxes (23) are connected at the bottom of the air conveying frame (22). An aeration groove (231) is opened at the top of the aeration box (23). Several aeration holes (232) are opened on the side wall of the aeration groove (231). The sealing head (24) is slidably fitted inside the aeration groove (231). When closed, the sealing head (24) blocks the aeration groove (231). A driving assembly (3) is provided inside the aeration box (23) to drive the sealing head (24) to move back and forth.

2. The low-oxygen aeration biological wastewater treatment device according to claim 1, characterized in that: The drive assembly (3) includes a drive motor (31), a rotating disk (32), a connecting column (33), and a return spring (34). The connecting column (33) is connected to the end cap (24) and slides with the aeration box (23). A connecting ring (332) is connected to the connecting column (33). The return spring (34) is sleeved on the connecting column (33) and located between the connecting ring (332) and the bottom wall of the aeration groove (231). A connecting frame is provided inside the aeration box (23). The rotating disk (32) is rotatably connected to the connecting frame and is eccentrically arranged. The drive motor (31) is mounted on the connecting frame and connected to the rotating disk (32). The rotating disk (32) abuts against the bottom end of the connecting column (33).

3. The low-oxygen aeration biological wastewater treatment device according to claim 2, characterized in that: The surface of the connecting column (33) is provided with a wave-shaped groove (331), and the aeration box (23) is connected with a connecting flange (233), which slides within the wave-shaped groove (331).

4. The low-oxygen aerated wastewater biological treatment device according to claim 3, characterized in that: The arc surface of the end cap (24) has several temporary arc grooves (241).

5. The low-oxygen aeration biological wastewater treatment device according to claim 3, characterized in that: The aeration box (23) is connected to a closed ring (234), and a sealing ring (333) is installed on the connecting ring (332). The connecting ring (332) abuts against the inner wall of the closed ring (234), and the sealing ring (333) is located between the closed ring (234) and the connecting ring (332). A closed space is formed between the closed ring (234), the connecting ring (332) and the connecting column (33).

6. The low-oxygen aeration biological wastewater treatment device according to claim 1, characterized in that: The working box (11) is provided with a moving component (4), which includes a moving motor (41), a rotating shaft (42) and a spiral blade (43). The moving motor (41) is installed obliquely inside the working box (11). The rotating shaft (42) is rotatably connected to the working box (11) and is coaxially arranged with the output shaft of the moving motor (41). Several spiral blades (43) are connected to one end of the rotating shaft (42) away from the moving motor (41). The spiral blades (43) are located below the working box (11).

7. The low-oxygen aeration biological wastewater treatment device according to claim 1, characterized in that: The air conveying frame (22) includes a main pipe (221), an air distribution box (222), and an air conveying pipe (223). One end of the main pipe (221) is connected to the air outlet of the fan (21), and the other end is connected to the air distribution box (222) through a flange. The air conveying pipe (223) connects the air distribution box (222) and the aeration box (23).

8. The low-oxygen aeration biological wastewater treatment device according to claim 1, characterized in that: The surface of the float (1) is equipped with several lifting rings (12).

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