Sewage treatment device with cyclic utilization structure

Abstract

The utility model discloses a sewage treatment device with a cyclic utilization structure, which relates to the technical field of sewage treatment equipment, and comprises an aeration tank and a secondary sedimentation tank, a connecting pipe is arranged between the aeration tank and the secondary sedimentation tank, the bottom of the secondary sedimentation tank is communicated with a return pipe, the bottom of the aeration tank is communicated with a circulating pipe, and the circulating pipe is communicated with the secondary sedimentation tank. The circulating pipe is communicated with the return pipe; an aeration pipe is arranged at the bottom of the aeration tank, an aeration box is arranged on the aeration pipe, a dredging mechanism is arranged between the aeration pipe and the aeration box, the dredging mechanism comprises a threaded rod, the threaded rod is rotationally connected to the interior of the aeration pipe, a plurality of fan blades distributed annularly are fixedly connected to the threaded rod, and the fan blades are arranged in the aeration pipe. A positioning cylinder is arranged in the aeration pipe, the threaded rod is rotatably connected with the positioning cylinder, a connecting seat is slidably connected to the threaded rod, and a plurality of conical blocks distributed circumferentially are fixedly connected to the connecting seat.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically a wastewater treatment device with a recycling structure. Background Technology

[0002] Wastewater treatment equipment with a recycling structure is a highly efficient and sustainable water treatment system designed to reduce waste and improve treatment efficiency by recycling water resources and energy.

[0003] Among wastewater treatment methods, the activated sludge process is widely used and highly effective. It is a biological treatment technology that utilizes microbial communities (activated sludge) to degrade organic pollutants and some inorganic substances in wastewater, and is widely applied in the treatment of urban sewage and industrial wastewater. Its core principle is to provide oxygen through aeration, promoting the metabolism of aerobic microorganisms and converting pollutants into CO2, H2O, and residual sludge.

[0004] In existing technologies, during the aeration process, the aeration holes are located in sewage, which contains a large number of impurities. As a result, the aeration holes are easily blocked and need to be cleaned regularly, which is troublesome and will delay the sewage treatment progress.

[0005] Therefore, we propose a wastewater treatment device with a recycling structure to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this invention is to provide a wastewater treatment device with a recycling structure to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a sewage treatment device with a recycling structure, comprising an aeration tank and a secondary sedimentation tank, wherein a connecting pipe is provided between the aeration tank and the secondary sedimentation tank, a return pipe is connected to the bottom of the secondary sedimentation tank, a circulation pipe is connected to the bottom of the aeration tank, and the circulation pipe and the return pipe are connected; an aeration pipe is provided at the bottom of the aeration tank, an aeration box is provided on the aeration pipe, and a dredging mechanism is provided between the aeration pipe and the aeration box.

[0008] Preferably, the unblocking mechanism includes a threaded rod, which is rotatably connected to the inside of the aeration pipe. Multiple fan blades arranged in a ring are fixedly connected to the threaded rod. A positioning cylinder is provided inside the aeration pipe, and the threaded rod and the positioning cylinder are rotatably connected.

[0009] Preferably, a connecting seat is slidably connected to the threaded rod, and a plurality of conical blocks distributed in a circle are fixedly connected to the connecting seat. The aeration box is provided with aeration holes that cooperate with the conical blocks.

[0010] Preferably, the aeration box contains two symmetrically arranged limiting rails, and the connecting seat and the limiting rails are slidably connected.

[0011] Preferably, a fixed cylinder is connected to the bottom of the aeration box, a positioning cylinder is threadedly connected to the threaded rod, the positioning cylinder and the fixed cylinder are slidably connected, a retaining ring is fixedly provided on the connecting seat, and the positioning cylinder and the retaining ring are rotatably connected.

[0012] Preferably, the fixed cylinder has a slot, and a positioning ring is slidably connected in the slot, and the positioning ring and the positioning cylinder are fixedly connected.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention effectively prevents impurities in sewage from clogging the aeration holes, thus affecting the purification efficiency, through its dredging mechanism. Moreover, the dredging mechanism does not rely on external power; it is driven by the airflow generated by aeration, making it highly efficient and stable. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 3 This is a front sectional view of the present invention.

[0018] Figure 4 This utility model Figure 3 Enlarged view of point A in the image;

[0019] Figure 5 This is a schematic diagram of the unblocking mechanism of this utility model.

[0020] In the diagram: 1. Aeration tank; 2. Secondary sedimentation tank; 3. Connecting pipe; 4. Circulation pipe; 5. Return pipe; 6. Aeration pipe; 7. Unblocking mechanism; 71. Threaded rod; 72. Fan blade; 73. Fixed cylinder; 74. Positioning cylinder; 75. Connecting seat; 76. Snap ring; 77. Conical block; 78. Aeration hole; 79. Limiting rail; 701. Positioning ring; 702. Snap groove; 703. Threaded cylinder; 8. Aeration box. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Please see Figure 1-5This utility model provides an embodiment of a wastewater treatment device with a recycling structure, comprising an aeration tank 1 and a secondary sedimentation tank 2. A connecting pipe 3 is provided between the aeration tank 1 and the secondary sedimentation tank 2. A return pipe 5 is connected to the bottom of the secondary sedimentation tank 2. A circulation pipe 4 is connected to the bottom of the aeration tank 1. The circulation pipe 4 and the return pipe 5 are connected. An aeration pipe 6 is provided at the bottom of the aeration tank 1. An aeration box 8 is provided on the aeration pipe 6. A dredging mechanism 7 is provided between the aeration pipe 6 and the aeration box 8.

[0023] The combination of aeration tank 1, secondary sedimentation tank 2, connecting pipe 3, circulation pipe 4, and return pipe 5 enables the recycling of activated sludge. Part of the activated sludge settled in the secondary sedimentation tank 2 is returned to the aeration tank 1 through the return pipe 5 for reuse in biological purification of wastewater, while the other part is discharged through the circulation pipe 4.

[0024] Please see Figure 4 The unblocking mechanism 7 includes a threaded rod 71, which is rotatably connected to the inside of the aeration pipe 6. Multiple fan blades 72 arranged in a ring are fixedly connected to the threaded rod 71. A positioning cylinder 74 is provided inside the aeration pipe 6. The threaded rod 71 and the positioning cylinder 74 are rotatably connected.

[0025] Please see Figure 5 A connecting seat 75 is slidably connected to the threaded rod 71, and a plurality of conical blocks 77 distributed in a circle are fixedly connected to the connecting seat 75. An aeration box 8 is provided with an aeration hole 78 that cooperates with the conical blocks 77.

[0026] Please see Figure 5 The aeration box 8 contains two symmetrically arranged limiting rails 79, and the connecting seat 75 and the limiting rails 79 are slidably connected.

[0027] Please see Figure 4 , Figure 5 The bottom of the aeration box 8 is connected to a fixed cylinder 73, and a threaded cylinder 703 is threadedly connected to the threaded rod 71. The threaded cylinder 703 and the fixed cylinder 73 are slidably connected. A retaining ring 76 is fixedly provided on the connecting seat 75, and the positioning cylinder 74 and the retaining ring 76 are rotatably connected.

[0028] Please see Figure 4 , Figure 5 The fixed cylinder 73 has a slot 702, and a positioning ring 701 is slidably connected in the slot 702. The positioning ring 701 and the threaded cylinder 703 are fixedly connected.

[0029] The unblocking mechanism 7 is used to unclog the aeration holes 78 on the aeration box 8, preventing them from being blocked by impurities in the sewage. The working principle of the unblocking mechanism 7 is as follows:

[0030] When gas is introduced into the aeration pipe 6, the gas drives the fan blade 72 to rotate, which in turn drives the threaded rod 71 to rotate. When the threaded rod 71 rotates, the positioning cylinder 74, due to the restriction of the slot 702, does not rotate with the threaded rod 71. Therefore, when the threaded rod 71 rotates, it drives the threaded cylinder 703 to move on the threaded rod 71. Since the threaded cylinder 703 and the connecting seat 75 are rotatably connected, the connecting seat 75 moves synchronously with the threaded cylinder 703, which in turn drives the conical block 77 on it to move. The conical block 77 continuously clears the aeration holes 78 to prevent them from becoming blocked. At the same time, the connecting seat 75 slides along the limiting rail 79 when it moves. The limiting rail 79 limits the movement trajectory of the connecting seat 75, so that the conical block 77 can accurately clear the aeration holes 78.

[0031] Working Principle: During operation, the coordinated use of the aeration tank 1, secondary sedimentation tank 2, connecting pipe 3, circulation pipe 4, and return pipe 5 enables the entire wastewater treatment process to be recycled, significantly improving wastewater treatment efficiency and water resource utilization. Specifically, wastewater first enters the aeration tank 1, where it undergoes biological purification through aeration. The treated wastewater then flows into the secondary sedimentation tank 2 through the connecting pipe 3 for sedimentation. In the secondary sedimentation tank 2, activated sludge settles at the bottom. A portion of this sludge is returned to the aeration tank 1 through the return pipe 5 to participate in the biological purification process again, achieving the recycling of activated sludge. The remaining settled wastewater is discharged through the circulation pipe 4 for further treatment or utilization.

[0032] Furthermore, the aeration pipes 6 and aeration boxes 8 installed at the bottom of the aeration tank 1, along with the unblocking mechanism 7 between them, further enhance the wastewater treatment effect. The aeration pipes 6 introduce gas into the aeration boxes 8, which is then evenly distributed into the wastewater through the aeration holes 78, providing sufficient oxygen for the microorganisms in the wastewater and promoting biological purification. Simultaneously, the unblocking mechanism 7 automatically clears the aeration holes 78, preventing them from being clogged by impurities in the wastewater and ensuring the continuity and stability of the aeration process.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A sewage treatment device with a recycling structure, comprising an aeration tank (1) and a secondary sedimentation tank (2), characterized in that: A connecting pipe (3) is provided between the aeration tank (1) and the secondary sedimentation tank (2). A return pipe (5) is connected to the bottom of the secondary sedimentation tank (2). A circulation pipe (4) is connected to the bottom of the aeration tank (1). The circulation pipe (4) and the return pipe (5) are connected. An aeration pipe (6) is provided at the bottom of the aeration tank (1), an aeration box (8) is provided on the aeration pipe (6), and a dredging mechanism (7) is provided between the aeration pipe (6) and the aeration box (8).

2. The wastewater treatment device with a recycling structure according to claim 1, characterized in that: The unblocking mechanism (7) includes a threaded rod (71), which is rotatably connected to the inside of the aeration pipe (6). Multiple fan blades (72) arranged in a ring are fixedly connected to the threaded rod (71). A positioning cylinder (74) is provided inside the aeration pipe (6). The threaded rod (71) and the positioning cylinder (74) are rotatably connected.

3. A wastewater treatment device with a recycling structure according to claim 2, characterized in that: A connecting seat (75) is slidably connected to the threaded rod (71), and a plurality of conical blocks (77) distributed in a circle are fixedly connected to the connecting seat (75). An aeration box (8) is provided with an aeration hole (78) that cooperates with the conical blocks (77).

4. The sewage treatment device with a recycling structure according to claim 3, characterized in that: The aeration box (8) contains two symmetrically arranged limiting rails (79), and the connecting seat (75) and the limiting rails (79) are slidably connected.

5. The sewage treatment device with a recycling structure according to claim 3, characterized in that: The bottom of the aeration box (8) is connected to a fixed cylinder (73), and a threaded cylinder (703) is threadedly connected to the threaded rod (71). The threaded cylinder (703) and the fixed cylinder (73) are slidably connected. A retaining ring (76) is fixedly provided on the connecting seat (75). The threaded cylinder (703) and the retaining ring (76) are rotatably connected.

6. The sewage treatment device with a recycling structure according to claim 5, characterized in that: The fixed cylinder (73) has a slot (702) and a positioning ring (701) is slidably connected in the slot (702). The positioning ring (701) and the positioning cylinder (74) are fixedly connected.

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