A sewage treatment apparatus

Abstract

This invention relates to the field of wastewater treatment technology and discloses a wastewater treatment device, including a cylindrical body. A connecting flange is fixedly installed at the upper end of the cylindrical body, and two cylindrical bodies are fixedly connected by bolts. A solenoid valve is fixedly installed at the lower end of one side of the cylindrical body, and an outlet is fixedly connected to the lower end of the solenoid valve. A treatment mechanism is installed inside the cylindrical body, enabling simultaneous filtration and impurity removal through a rotating and switching filtration method. This wastewater treatment device employs a rotating and switching filtration method to achieve simultaneous filtration and impurity removal. A turntable is fixedly connected to the lower end of the output shaft of a central motor. When the central motor operates, it drives the turntable to rotate continuously. The filter plates on the outer surface of the turntable filter the wastewater during rotation. Simultaneously, impurities intercepted by the filter plates are promptly transferred to a specific location for cleaning as the turntable rotates, eliminating the need to interrupt the wastewater treatment process to clean the filter screen as in traditional devices.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to a wastewater treatment device. Background Technology

[0002] Traditional wastewater treatment equipment has many shortcomings, which seriously restrict the efficiency and quality of wastewater treatment;

[0003] On the one hand, most common sewage treatment devices use a single filtration method, making it difficult to carry out filtration and impurity removal processes simultaneously. During the filtration process, impurities in the sewage can easily clog the filter screen, causing the filtration speed to slow down and requiring frequent cleaning of the filter screen. This not only consumes a lot of manpower and resources but also interrupts the sewage treatment process, greatly reducing the overall treatment efficiency. For example, some devices that use fixed filter screens often cannot work properly after a short period of operation when treating sewage containing a lot of suspended particles due to filter screen clogging.

[0004] On the other hand, in terms of flocculation and sedimentation treatment, most devices cannot automatically adjust the amount of chemical agents injected according to the sewage flow rate. If the injection amount is insufficient, the insoluble substances in the sewage cannot be fully precipitated, resulting in poor treatment effect. If the injection amount is too large, it will not only waste the chemical agents, but may also cause secondary pollution. Taking some devices that rely on manual timed and quantitative addition of flocculants as an example, they cannot adapt to the real-time changes in sewage flow rate and it is difficult to ensure the effective sedimentation treatment of insoluble substances in sewage.

[0005] Therefore, developing a wastewater treatment device that can achieve alternating filtration, simultaneous filtration and impurity removal, and automatic injection of chemical agents according to wastewater flow rate is of great significance for improving wastewater treatment efficiency and quality and reducing treatment costs. Summary of the Invention

[0006] The purpose of this invention is to provide a wastewater treatment device to solve the problems mentioned in the background art, such as the inability to perform filtration and impurity removal simultaneously, resulting in low efficiency, and the inability to automatically adjust the amount of chemical agents injected according to the wastewater flow rate, which affects the treatment effect and causes resource waste and potential secondary pollution.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a sewage treatment device, comprising a cylinder, a connecting flange fixedly provided at the upper end of the cylinder, and two cylinders being fixedly connected by bolts, a solenoid valve fixedly installed at the lower end of one side of the cylinder, and an outlet fixedly connected to the lower end of the solenoid valve, characterized in that: a treatment mechanism is provided inside the cylinder, and through a rotating and switching filtration method, filtration and impurity removal can be carried out simultaneously, greatly improving the overall sewage treatment efficiency;

[0008] The processing mechanism includes a central seat, with a flow guide groove inside the upper end of the central seat and a water storage tank inside the lower end of the central seat. A central motor is fixedly installed inside the lower end of the central seat, and the lower end of the output shaft of the central motor passes through the lower surface of the central seat. A turntable is fixedly connected to the lower end of the output shaft of the central motor, and a filter plate is embedded in the outer surface of the turntable.

[0009] The processing mechanism further includes: a central column, a clearance groove on one side of the upper end of the central column, and a piston groove on the other side of the upper end of the central column. A piston plate is provided inside the piston groove, and a contact rod is fixedly provided on the lower surface of the piston plate. The lower end of the contact rod penetrates the outer surface of the upper end of the central column. A waste discharge port is provided on the side surface of the cylinder opposite the piston plate. A water injection groove is provided inside the central column. A rotating impeller is installed inside the middle section side surface of the central column. Both ends of the impeller shaft penetrate the outer surface of the central column, and both ends of the impeller shaft are fixedly provided with fixing plates. A return spring is connected between the contact rod and the outer surface of the upper end of the central column.

[0010] The lower end of the storage tank is connected to the dispensing box, and the inner surface of the dispensing box is in contact with the outer surface of the dispensing plate.

[0011] The rotating shaft of the dispensing disc passes through the outer surface of the dispensing box, and the rotating shaft of the dispensing disc is fixedly connected to one side of the rotating shaft of the impeller.

[0012] A liquid storage tank is fixedly installed on the outer surface of one side of the cylinder, and a dispensing box is fixedly connected to the lower end of the liquid storage tank. A leakage port is opened at the lower end of the dispensing box, and a rotating dispensing plate is installed inside the dispensing box. A liquid storage tank is opened on the outer surface of the dispensing plate.

[0013] The piston plate and piston groove are connected by sliding friction. The lower end of the contact rod is cylindrical. The upper end of the water injection groove passes through the lower end of the clearance groove, and the lower end of the water injection groove passes through the lower end face of the central column. A gap is left between the lower end face of the central column and the inner bottom surface of the cylinder.

[0014] Preferably, the treatment mechanism further includes a flocculation and stirring mechanism, which ensures the effective sedimentation treatment of insoluble substances in the wastewater by automatically injecting chemical agents according to the wastewater flow rate;

[0015] The flocculation and stirring mechanism includes a stirring tank, which is rotatably installed inside the lower end of the cylinder. A baffle is fixedly provided on the inner surface of the stirring tank, and a baffle block is fixedly provided on the upper outer surface of the baffle. A baffle plate is fixedly provided on the inner surface of the stirring tank above the baffle. A gear is fixedly connected to one end of the impeller shaft, and toothed blocks are evenly provided on the upper surface of the stirring tank.

[0016] Preferably, the lower end of the guide channel is connected to the water storage tank, and the water storage tank is located directly above the relief channel. The lower surface of the center seat is inclined and is in contact with the upper surface of the turntable. The lower surface of the turntable is in contact with the upper end surface of the center column.

[0017] Preferably, the outer surface is in contact with the inner surface of the central column, and one side of the impeller blade is located inside the water injection tank, and the fixing plate has an arc-shaped design.

[0018] Preferably, the outer surface of the mixing tank is in contact with the inner surface of the cylinder, the baffles are evenly arranged on the inner surface of the mixing tank, and the baffles are L-shaped with an arc-shaped lower end. The baffle blocks are staggered on the upper outer surface of the baffles, and a gap is left between the upper surface of the baffles and the lower surface of the baffles.

[0019] Preferably, the gear is connected to the mixing tank by meshing with the toothed blocks on the upper surface of the mixing tank, and the gear and the material distribution plate are located on opposite sides of the impeller.

[0020] Using the above technical solution, when the impeller rotates due to changes in sewage flow, the gear meshes with the toothed blocks on the upper surface of the mixing tank, driving the mixing tank to rotate and achieving the mixing of sewage. At the same time, the gear and the distribution plate are located on both sides of the impeller, so that when the impeller rotates, it can drive the distribution plate to rotate through transmission, thereby accurately controlling the amount of chemical agent injected into the storage tank, ensuring that the amount of chemical agent injected matches the sewage flow, and improving the sewage treatment effect.

[0021] Preferably, the lower end of the liquid storage tank is connected to the dispensing box, and the inner surface of the dispensing box is in contact with the outer surface of the dispensing tray.

[0022] By adopting the above technical solution, the connection between the storage tank and the dispensing box allows the chemical agents in the storage tank to smoothly enter the dispensing box. The close fit between the dispensing box and the dispensing plate ensures that the chemical agents are quantitatively discharged through the storage tank on the outer surface of the dispensing plate during the rotation of the dispensing plate, avoiding chemical agent leakage and accurately controlling the injection amount of chemical agents, thus providing a guarantee for the effective precipitation treatment of insoluble substances in wastewater.

[0023] Preferably, the rotating shaft of the dispensing disc passes through the outer surface of the dispensing box, and the rotating shaft of the dispensing disc is fixedly connected to one side rotating shaft of the impeller.

[0024] By adopting the above technical solution, the rotating shaft structure of the distribution disc is designed to ensure stable rotation. Its fixed connection with the rotating shaft on one side of the impeller allows the impeller to directly drive the distribution disc to rotate synchronously. The rotation frequency of the distribution disc can be precisely adjusted according to the changes in sewage flow, thereby achieving a precise match between the amount of chemical agent injected and the sewage flow, ensuring that insoluble substances in the sewage are fully precipitated and improving the quality of sewage treatment.

[0025] Compared with the prior art, the beneficial effects of the present invention are: the wastewater treatment device:

[0026] 1. The system adopts a rotating switching filtration method to achieve simultaneous filtration and impurity removal. The lower end of the output shaft of the central motor is fixedly connected to the turntable. When the central motor is running, it drives the turntable to rotate continuously. The filter plates on its outer surface filter the sewage during the rotation. At the same time, the impurities intercepted by the filter plates can be transferred to specific locations for cleaning as the turntable rotates. Unlike traditional devices, there is no need to interrupt the sewage treatment process to clean the filter screen. This method effectively avoids the problem of reduced treatment efficiency due to filter screen clogging. Compared with traditional single filtration devices, it greatly increases the sewage treatment capacity per unit time.

[0027] Furthermore, by driving the impeller to rotate during sewage injection, the impeller can drive the fixed plate to strike periodically, thereby causing the piston plate to slide up and down periodically. The pressure change inside the piston plate is used to clear the blocked holes in the filter plate, thus preventing the filter plate from being blocked by impurities.

[0028] 2. When sewage flows through the injection tank, it drives the impeller to rotate. A gear is fixedly connected to one end of the impeller shaft. The gear meshes with the mixing tank through toothed blocks on the upper surface of the mixing tank. The shaft of the distribution plate is fixedly connected to one side of the impeller shaft. Thus, as the impeller rotates with the sewage flow rate, it drives the distribution plate to rotate through gear transmission, thereby precisely controlling the amount of chemical reagent injected into the storage tank. When the sewage flow rate is high, the impeller speed is high, the distribution plate rotates at a high frequency, and the amount of chemical reagent injected is correspondingly increased. Conversely, it is reduced when the flow rate is low. This precise adjustment ensures that insoluble substances in the sewage are fully precipitated, greatly improving the sewage treatment quality and avoiding the problem of poor treatment effect due to improper injection of chemical reagents. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0030] Figure 2 This is a three-dimensional structural diagram of the connection between the cylinder, solenoid valve and water outlet of the present invention.

[0031] Figure 3 This is a schematic diagram of the overall cross-sectional three-dimensional structure of the present invention;

[0032] Figure 4 This is a three-dimensional structural diagram of the cross-sectional view of the connection between the piston groove and the piston plate of the present invention;

[0033] Figure 5 This is a three-dimensional structural diagram of the connection between the central motor, turntable, and filter plate of the present invention.

[0034] Figure 6 This is a three-dimensional structural diagram of the cross-sectional view of the connection between the cylinder and the liquid storage tank of the present invention;

[0035] Figure 7 This is a three-dimensional structural diagram of the connection between the mixing tank and the gear in this invention;

[0036] Figure 8 This is a three-dimensional structural diagram of the connection cross-section of the dispensing box, dispensing tray, and liquid storage tank of the present invention;

[0037] Figure 9 This is a three-dimensional structural diagram of the connection between the mixing tank, the baffle plate, and the baffle block of the present invention.

[0038] In the diagram: 1. Cylinder; 2. Connecting flange; 3. Solenoid valve; 4. Outlet; 5. Center seat; 6. Guide channel; 7. Water storage tank; 8. Central motor; 9. Turntable; 10. Filter plate; 11. Center column; 12. Clearance groove; 13. Piston groove; 14. Piston plate; 15. Contact rod; 16. Waste discharge port; 17. Water injection tank; 18. Impeller; 19. Fixing plate; 20. Return spring; 21. Mixing tank; 22. Baffle plate; 23. Baffle block; 24. Baffle plate; 25. Gear; 26. Liquid storage tank; 27. Distribution box; 28. Leakage port; 29. ​​Distribution plate; 30. Liquid storage tank. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Please see Figures 1-9 The present invention provides a technical solution: a sewage treatment device. Example

[0041] This embodiment discloses: a cylinder 1, a connecting flange 2 fixedly installed at the upper end of the cylinder 1, and two cylinders 1 are fixedly connected by bolts. A solenoid valve 3 is fixedly installed at the lower end of one side of the cylinder 1, and an outlet 4 is fixedly connected to the lower end of the solenoid valve 3. A processing mechanism is set inside the cylinder 1. Through the filtration method of rotating and switching, filtration and impurity removal can be carried out simultaneously, which greatly improves the overall sewage treatment efficiency.

[0042] The processing mechanism includes a central seat 5, a guide groove 6 is provided inside the upper end of the central seat 5, and a water storage tank 7 is provided inside the lower end of the central seat 5. A central motor 8 is fixedly installed inside the lower end of the central seat 5, and the lower end of the output shaft of the central motor 8 passes through the lower surface of the central seat 5. A turntable 9 is fixedly connected to the lower end of the output shaft of the central motor 8, and a filter plate 10 is embedded in the outer surface of the turntable 9.

[0043] The processing mechanism also includes: a central column 11, a clearance groove 12 is provided on one side of the upper end of the central column 11, and a piston groove 13 is provided on the other side of the upper end of the central column 11. A piston plate 14 is provided inside the piston groove 13, and a contact rod 15 is fixedly provided on the lower surface of the piston plate 14. The lower end of the contact rod 15 penetrates the upper outer surface of the central column 11. A waste discharge port 16 is provided on the side surface of the cylinder 1 opposite to the piston plate 14. A water injection groove 17 is provided inside the central column 11. A rotating impeller 18 is installed inside the middle section side surface of the central column 11. Both ends of the shaft of the impeller 18 penetrate the outer surface of the central column 11. Both ends of the shaft of the impeller 18 are fixedly provided with fixing plates 19. A return spring 20 is connected between the contact rod 15 and the upper outer surface of the central column 11.

[0044] The lower end of the guide channel 6 is connected to the water storage tank 7, and the water storage tank 7 is located directly above the relief channel 12. The lower surface of the center seat 5 is inclined, and the lower surface of the center seat 5 is in contact with the upper surface of the turntable 9. The lower surface of the turntable 9 is in contact with the upper end surface of the center column 11.

[0045] The piston plate 14 and the piston groove 13 are connected by sliding friction. The lower end of the contact rod 15 is cylindrical. The upper end of the water injection groove 17 passes through the lower end of the relief groove 12, and the lower end of the water injection groove 17 passes through the lower end face of the central column 11. A gap is left between the lower end face of the central column 11 and the inner bottom surface of the cylinder 1.

[0046] The outer surface of the impeller 18 is in contact with the inner surface of the central column 11, and one side of the blade of the impeller 18 is located inside the water injection tank 17. The fixing plate 19 has an arc-shaped design.

[0047] The central motor 8 is started, and its output shaft drives the turntable 9 to rotate continuously. After the sewage enters the cylinder 1 through the connecting flange 2, it will come into contact with the filter plate 10 on the outer surface of the turntable 9. During the rotation of the turntable 9, the filter plate 10 filters the sewage. The filtered water enters the subsequent treatment process, while the intercepted impurities rotate with the turntable 9. Since filtration and impurity removal can be carried out at the same time, the problem of having to interrupt the treatment process to clean the filter screen due to filter screen blockage in the traditional single filtration method is avoided, thus improving the sewage treatment efficiency.

[0048] When sewage is injected, it flows through the water injection tank 17, causing the impeller 18 to rotate. The fixing plates 19 fixed at both ends of the impeller 18 shaft periodically strike the contact rod 15 as the impeller 18 rotates. The contact rod 15 is connected to the piston plate 14. Under the impact of the fixing plates 19, the piston plate 14 slides up and down periodically in the piston groove 13. When the piston plate 14 slides, its internal pressure changes. This pressure change can clear the blocked holes in the filter plate 10. The impurities carried out by the pressure are discharged through the waste outlet 16, preventing impurities from clogging the filter plate 10 and ensuring the continuous and stable operation of the filtration. The return spring 20 ensures that the piston plate 14 can return to its original position when the contact rod 15 is not subjected to external force.

[0049] The guide channel 6 of the center seat 5 is used to guide sewage. Its lower end is connected to the water storage tank 7. Sewage flows into the water storage tank 7 through the guide channel 6. The water storage tank 7 is located directly above the relief tank 12. After being filtered by the filter plate 10, the sewage falls downward into the relief tank 12. The lower surface of the center seat 5 is inclined and fits against the upper surface of the turntable 9. The lower surface of the turntable 9 is also in contact with the upper end face of the center column 11, which ensures the directional backflow of sewage. The treated sewage is discharged through the outlet 4 through the periodic opening of the solenoid valve 3. Example

[0050] This embodiment discloses, based on Embodiment 1, that the treatment mechanism also includes a flocculation and stirring mechanism, which ensures the effective sedimentation treatment of insoluble substances in the wastewater by automatically injecting chemical agents according to the wastewater flow rate.

[0051] The flocculation and mixing mechanism includes a mixing tank 21, which is rotatably installed inside the lower end of the cylinder 1. A baffle 22 is fixedly provided on the inner surface of the mixing tank 21, and a baffle block 23 is fixedly provided on the upper outer surface of the baffle 22. A baffle 24 is fixedly provided on the inner surface of the mixing tank 21 above the baffle 22. A gear 25 is fixedly connected to one end of the shaft of the impeller 18. Tooth blocks are evenly provided on the upper surface of the mixing tank 21. A liquid storage tank 26 is fixedly provided on the outer surface of one side of the cylinder 1. A distribution box 27 is fixedly connected to the lower end of the liquid storage tank 26. A discharge port 28 is opened at the lower end of the distribution box 27. A rotating distribution plate 29 is installed inside the distribution box 27, and a liquid storage tank 30 is opened on the outer surface of the distribution plate 29.

[0052] The outer surface of the mixing tank 21 is in contact with the inner surface of the cylinder 1. The baffles 22 are evenly arranged on the inner surface of the mixing tank 21. The baffles 22 are L-shaped and the lower end of the baffles 22 is arc-shaped. The baffle blocks 23 are staggered on the upper outer surface of the baffles 22. There is a gap between the upper surface of the baffles 22 and the lower surface of the baffles 24.

[0053] The gear 25 is connected to the mixing tank 21 by meshing with the toothed blocks on the upper surface of the mixing tank 21, and the gear 25 and the material distribution plate 29 are located on both sides of the impeller 18 respectively.

[0054] The lower end of the storage tank 26 is connected to the dispensing box 27, and the inner surface of the dispensing box 27 is in contact with the outer surface of the dispensing plate 29.

[0055] The rotating shaft of the dispensing disc 29 passes through the outer surface of the dispensing box 27, and the rotating shaft of the dispensing disc 29 is fixedly connected to one side of the rotating shaft of the impeller 18.

[0056] Wastewater flows through the water injection tank 17, causing the impeller 18 to rotate. A gear 25, fixedly connected to one end of the impeller 18's shaft, rotates accordingly. The gear 25 meshes with the toothed blocks on the upper surface of the mixing tank 21. Simultaneously, the shaft of the distribution plate 29 is fixedly connected to one side of the impeller 18's shaft. When the impeller 18 rotates due to changes in wastewater flow, the gear 25 drives the distribution plate 29 inside the distribution box 27 to rotate. A storage tank 30 is provided on the outer surface of the distribution plate 29. The chemical reagents in the storage tank 26 are transported by the rotation of the distribution plate 29. During the process, the storage tank 30 will periodically align with the storage container 26 and the discharge port 28. The chemical agent first enters the storage tank 30. When the storage tank 30 aligns with the discharge port 28, the chemical agent leaks out to achieve quantitative discharge. When the sewage flow is large, the impeller 18 rotates faster and the distribution plate 29 rotates at a higher frequency, resulting in more chemical agent being injected. When the sewage flow is small, the impeller 18 rotates slower and the distribution plate 29 rotates at a lower frequency, resulting in less chemical agent being injected. This precise control of the amount of chemical agent injected ensures that the insoluble substances in the sewage are fully precipitated.

[0057] The mixing tank 21 is rotatably installed inside the lower end of the cylinder 1. The baffles 22 and baffle blocks 23 on its inner surface can enhance the mixing effect. When the mixing tank 21 rotates, the baffles 22 and baffle blocks 23 will disturb the sewage, so that the chemical agents and sewage are fully mixed. The baffles 22 are L-shaped with an arc-shaped lower end. The baffle blocks 23 are staggered on the upper outer surface. This design can further improve the turbulence effect. The baffle 24 is set above the baffles 22, which can block the sewage and make the sewage form a more complex flow path in the mixing tank 21, promote the uniform mixing of chemical agents and sewage, and improve the sewage treatment quality.

[0058] The above specific embodiments further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above are merely specific embodiments of the present invention and do not limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention are included within the protection scope of the present invention.

Claims

1. A wastewater treatment device, comprising a cylindrical body (1), wherein a connecting flange (2) is fixedly provided at the upper end of the cylindrical body (1), and two cylindrical bodies (1) are fixedly connected by bolts, and a solenoid valve (3) is fixedly installed at the lower end of one side of the cylindrical body (1), and an outlet (4) is fixedly connected to the lower end of the solenoid valve (3), characterized in that: The cylinder (1) is equipped with a processing mechanism inside. Through the rotating and switching filtration method, filtration and impurity removal can be carried out simultaneously, which greatly improves the overall sewage treatment efficiency. The processing mechanism includes a central seat (5), with a guide groove (6) inside the upper end of the central seat (5) and a water storage tank (7) inside the lower end of the central seat (5). A central motor (8) is fixedly installed inside the lower end of the central seat (5), and the lower end of the output shaft of the central motor (8) passes through the lower surface of the central seat (5). A turntable (9) is fixedly connected to the lower end of the output shaft of the central motor (8), and a filter plate (10) is embedded in the outer surface of the turntable (9). The processing mechanism further includes: a central column (11), a clearance groove (12) is provided on one side of the upper end of the central column (11), and a piston groove (13) is provided on the other side of the upper end of the central column (11). A piston plate (14) is provided inside the piston groove (13), and a contact rod (15) is fixedly provided on the lower surface of the piston plate (14). The lower end of the contact rod (15) penetrates the upper outer surface of the central column (11). A waste discharge port (16) is provided on the side surface of the cylinder (1) opposite to the piston plate (14). A water injection groove (17) is provided inside the central column (11). A rotating impeller (18) is installed inside the middle section side surface of the central column (11). Both ends of the shaft of the impeller (18) penetrate the outer surface of the central column (11), and both ends of the shaft of the impeller (18) are fixedly provided with fixing plates (19). A return spring (20) is connected between the contact rod (15) and the upper outer surface of the central column (11). The lower end of the storage tank (26) is connected to the dispensing box (27), and the inner surface of the dispensing box (27) is in contact with the outer surface of the dispensing plate (29). The rotating shaft of the dispensing disc (29) passes through the outer surface of the dispensing box (27), and the rotating shaft of the dispensing disc (29) is fixedly connected to one side of the rotating shaft of the impeller (18). A liquid storage tank (26) is fixedly installed on the outer surface of the cylinder (1) on one side, and a distribution box (27) is fixedly connected to the lower end of the liquid storage tank (26). A leakage port (28) is opened at the lower end of the distribution box (27), and a rotating distribution plate (29) is installed inside the distribution box (27). A liquid storage tank (30) is opened on the outer surface of the distribution plate (29). The piston plate (14) and piston groove (13) are connected by sliding friction. The lower end of the contact rod (15) is cylindrical. The upper end of the water injection groove (17) passes through the lower end of the relief groove (12), and the lower end of the water injection groove (17) passes through the lower end face of the central column (11). A gap is left between the lower end face of the central column (11) and the inner bottom surface of the cylinder (1).

2. The wastewater treatment device according to claim 1, characterized in that: The treatment unit also includes a flocculation and stirring unit, which ensures the effective sedimentation treatment of insoluble substances in the wastewater by automatically injecting chemical agents according to the wastewater flow rate. The flocculation and stirring mechanism includes a stirring tank (21), which is rotatably installed inside the lower end of the cylinder (1). A baffle plate (22) is fixedly provided on the inner surface of the stirring tank (21), and a baffle block (23) is fixedly provided on the upper outer surface of the baffle plate (22). A baffle plate (24) is fixedly provided on the inner surface of the stirring tank (21) above the baffle plate (22). A gear (25) is fixedly connected to one end of the shaft of the impeller (18), and toothed blocks are evenly provided on the upper surface of the stirring tank (21).

3. The wastewater treatment device according to claim 1, characterized in that: The lower end of the guide channel (6) is connected to the water storage tank (7), and the water storage tank (7) is located directly above the relief groove (12). The lower surface of the center seat (5) is inclined, and the lower surface of the center seat (5) is in contact with the upper surface of the turntable (9). The lower surface of the turntable (9) is in contact with the upper surface of the center column (11).

4. The wastewater treatment device according to claim 1, characterized in that: The outer surface of the impeller (18) is in contact with the inner surface of the central column (11), and one side of the blade of the impeller (18) is located inside the water injection tank (17). The fixing plate (19) is arc-shaped.

5. A wastewater treatment device according to claim 2, characterized in that: The outer surface of the mixing tank (21) is in contact with the inner surface of the cylinder (1). The baffle (22) is evenly arranged on the inner surface of the mixing tank (21), and the baffle (22) is L-shaped. The lower end of the baffle (22) is arc-shaped. The baffle block (23) is staggered on the upper outer surface of the baffle (22). There is a gap between the upper surface of the baffle (22) and the lower surface of the baffle (24).

6. A wastewater treatment device according to claim 2, characterized in that: The gear (25) is connected to the mixing tank (21) by meshing with the tooth block on the upper surface of the mixing tank (21), and the gear (25) and the material distribution plate (29) are located on both sides of the impeller (18).

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