Rotary disc filter for sewage treatment

By using a tapping and vibration method in a rotary filter to remove impurities, the problem of low wastewater treatment efficiency and water waste caused by rinsing with clean water is solved, achieving efficient wastewater treatment and disinfection.

CN223818315UActive Publication Date: 2026-01-23NANJING LISHUI PENGYAO SEWAGE TREATMENT CO LTD
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Patent Information

Application Number
CN202520402895.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-10
Publication Date
2026-01-23
Estimated Expiration
2035-03-10

AI Technical Summary

Technical Problem

Existing rotary filter machines suffer from low wastewater treatment efficiency and waste of water resources when impurities are washed away with clean water.

Method used

The filter disc is tapped and vibrated, and the elastic potential energy of the spring is used to detach the impurities from the filter disc and let them fall into the debris tray, thus avoiding the formation of wastewater by water washing.

Benefits of technology

It improves wastewater treatment efficiency, reduces water waste, and enhances the utilization rate and disinfection effect of disinfectants.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of sewage treatment, and discloses a turntable filter for sewage treatment, which comprises a bottom plate, the upper surface of the bottom plate is fixedly connected with a sewage treatment box, and the inside of the sewage treatment box is rotatably connected with a sewage injection channel. The sewage injection channel rotates to drive the filter discs to rotate, so that impurities in sewage in the sewage injection channel are attached to the inner side surfaces of the filter discs, and when reaching a specific position above the impurity tray, each filter disc is knocked by the knocking component; according to the device, the filter disc is driven to move along the interior of the sliding groove, vibration of the filter disc is achieved due to elastic potential energy of the first spring, so that impurities can fall onto the upper surface of the impurity tray, and separation of the impurities and clear water is achieved due to the fact that the impurity tray is in an inclined state. And the low sewage treatment efficiency caused by sewage formed again by water flushing is avoided.
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Description

TECHNICAL FIELD

[0001] The utility model relates to sewage treatment technical field more specifically, the utility model relates to a carousel filter for sewage treatment. BACKGROUND

[0002] Water is the source of life and is essential for all living beings. Sewage treatment can remove harmful substances from wastewater, preventing these substances from entering natural water bodies and thus protecting water resources from pollution. This helps maintain the balance of aquatic ecosystems and ensures that plants and animals can continue to survive and reproduce.

[0003] However, sewage treatment often uses carousel filters, which use special filter media and structural design to have high filtration capacity. For example, fiber carousel filters use special fiber materials with large specific surface area as filter media, providing more adsorption sites to effectively remove suspended solid substances in water, achieving the purpose of purifying water quality. Carousel filters achieve reliable interception of fine particles and suspended solids through the combination of multiple filter discs and filter cloth.

[0004] In existing carousel filters, the method of washing with clean water is often used to drop the impurities adsorbed on the inner side of the carousel into the receiving tray, thereby achieving sewage treatment. However, this method still mixes clean water with impurities and drops them into the upper part of the receiving tray, which is eventually pumped out by the pump. This step still forms sewage, reducing the efficiency of sewage treatment. In turn, the water flowing out of the receiving tray with impurities also causes waste of water resources. Therefore, it is necessary to improve and optimize a carousel filter for sewage treatment. SUMMARY

[0005] To overcome the shortcomings of the prior art, the utility model provides a carousel filter for sewage treatment, which uses knocking vibration to knock the filter disc, avoiding the formation of sewage again by washing with water, thereby improving the efficiency of sewage treatment.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a carousel filter for sewage treatment, comprising a bottom plate, the upper surface of the bottom plate is fixedly connected with a sewage treatment tank, the inside of the sewage treatment tank is rotatably connected with a sewage injection channel, the surface of the sewage injection channel is fixedly connected with a fixed strip, one end of the fixed strip is fixedly connected with a connecting ring, both sides of the fixed strip are provided with a sliding slot, the inside of the sliding slot is fixedly connected with a first spring, one end of the first spring is fixedly connected with a filter disc, the filter disc is movably connected between the sliding slot, the upper part of the sewage treatment tank is provided with a vibration structure.

[0007] As a preferred technical solution of this utility model: a first bevel gear is fixedly connected to the right end of the sewage injection channel, a disinfection box is fixedly connected to the upper surface of the base plate, a support plate is fixedly connected to the upper surface of the disinfection box, a stirring shaft is rotatably connected inside the support plate, a second bevel gear is fixedly connected to the upper end of the stirring shaft, the second bevel gear meshes with the first bevel gear, and a stirring rod is fixedly connected to the surface of the stirring shaft.

[0008] As a preferred technical solution of this utility model: a dual-axis motor is fixedly installed on the upper surface of the sewage treatment tank, a first pulley is fixedly sleeved on the right output shaft of the dual-axis motor, a second pulley is fixedly sleeved on the surface of the sewage injection channel, and a belt is connected between the first pulley and the second pulley for transmission.

[0009] As a preferred technical solution of this utility model: the vibration structure includes a cam fixedly sleeved on the left output shaft of the dual-axis motor, the left output shaft of the dual-axis motor is rotatably connected to the left wall of the sewage treatment tank, a fixed column is fixedly connected to the inner side of the sewage treatment tank, a striking component is rotatably connected to the surface of the fixed column, a second spring is fixedly connected between the inner sides of the two striking components, and a ball is rotatably connected inside the striking component.

[0010] As a preferred technical solution of this utility model: the front surface of the disinfection box is provided with a water outlet, and the right side surface of the disinfection box is provided with a disinfectant inlet.

[0011] As a preferred technical solution of this utility model: a support component is fixedly connected to the upper surface of the base plate, and a sewage inlet is fixedly connected to the rear end of the support component. The support component is rotatably connected to the inside of the sewage inlet channel.

[0012] As a preferred technical solution of this utility model: a support frame is fixedly connected to the upper surface of the base plate, and a miscellaneous tray is fixedly connected to the upper surface of the support frame.

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

[0014] 1. This utility model uses the rotation of the sewage injection channel to drive the rotation of the filter discs, thereby causing impurities in the sewage inside the sewage injection channel to adhere to the inner surface of the filter discs. When each filter disc reaches a specific position above the debris tray, it is struck by the striking component, thereby driving the filter disc to move along the inside of the slide groove. Due to the elastic potential energy of the first spring, the filter disc vibrates, allowing the impurities to fall onto the upper surface of the debris tray. Since the debris tray is in an inclined state, the impurities are separated from the clean water. This device uses a striking and vibration method to strike the filter discs, avoiding the re-formation of sewage by washing with water, thus preventing low sewage treatment efficiency.

[0015] 2. This utility model drives the rotation of the first bevel gear by rotating the sewage injection channel. At the same time, the meshing of the first and second bevel gears causes the stirring shaft to rotate inside the support plate. Since a stirring rod is fixedly connected to the surface of the stirring shaft, the disinfectant and clean water inside the disinfection tank are stirred. This device uses linkage to disinfect the clean water inside the disinfection tank, and the disinfectant and clean water are fully stirred, which helps to achieve water disinfection, increases the utilization rate of the disinfectant, and enhances the disinfection effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the sewage inlet structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the disinfection box of this utility model;

[0019] Figure 4 This is a schematic diagram of the striking component structure of this utility model;

[0020] Figure 5 This is a cross-sectional view of the sewage injection channel of this utility model;

[0021] Figure 6 This is an exploded view of the first spring and filter disc of this utility model.

[0022] In the diagram: 1. Base plate; 2. Sewage treatment tank; 3. Sewage injection channel; 4. Fixing strip; 5. Connecting ring; 6. Slide groove; 7. First spring; 8. Filter disc; 9. First bevel gear; 10. Disinfection tank; 11. Support plate; 12. Stirring shaft; 13. Second bevel gear; 14. Stirring rod; 15. Dual-shaft motor; 16. First pulley; 17. Second pulley; 18. Belt; 19. Cam; 20. Fixing column; 21. Striking assembly; 22. Second spring; 23. Ball bearing; 24. Outlet; 25. Disinfectant inlet; 26. Support assembly; 27. Sewage injection port; 28. Support frame; 29. ​​Miscellaneous goods tray. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figures 1 to 6 As shown, this utility model provides a rotary filter for sewage treatment, including a base plate 1, a sewage treatment tank 2 fixedly connected to the upper surface of the base plate 1, a sewage injection channel 3 rotatably connected inside the sewage treatment tank 2, a fixing strip 4 fixedly connected to the surface of the sewage injection channel 3, a connecting ring 5 fixedly connected to one end of the fixing strip 4, and sliding grooves 6 opened on both sides of the fixing strip 4. A first spring 7 is fixedly connected inside the sliding groove 6, a filter disc 8 is fixedly connected to one end of the first spring 7, and the filter disc 8 is movably connected to the sliding groove 6. A vibration structure is provided on the upper part of the sewage treatment tank 2.

[0025] When the staff injects sewage into the support assembly 26 through the sewage inlet 27, it then flows into the sewage inlet channel 3. By starting the dual-axis motor 15, the rotation of the output shaft at the right end of the dual-axis motor 15 drives the first pulley 16 to rotate, which in turn drives the second pulley 17 to rotate due to the transmission action of the belt 18. This causes the sewage inlet channel 3 to rotate inside the sewage treatment tank 2. Since the surface of the sewage inlet channel 3 is fixedly connected with fixing strips 4, the two closest adjacent fixing strips 4 are connected by connecting rings 5. At the same time, impurities in the sewage remain on the inner side of the filter disc 8. When the filter disc 8 is above the debris tray 29, the filter disc 8 is struck by the vibration structure, causing the filter disc 8 to move relative to the inside of the slide 6. Since the first spring 7 fixedly connected inside the fixing strip 4 is fixedly connected to the filter disc 8, the impurities are shaken down into the debris tray 29, and then the impurities flow out from the left end of the debris tray 29.

[0026] The right end of the sewage injection channel 3 is fixedly connected to a first bevel gear 9, the upper surface of the base plate 1 is fixedly connected to a disinfection box 10, the upper surface of the disinfection box 10 is fixedly connected to a support plate 11, the inside of the support plate 11 is rotatably connected to a stirring shaft 12, the upper end of the stirring shaft 12 is fixedly connected to a second bevel gear 13, the second bevel gear 13 and the first bevel gear 9 mesh with each other, and the surface of the stirring shaft 12 is fixedly connected to a stirring rod 14.

[0027] When the staff starts the dual-shaft motor 15, the rotation of the sewage injection channel 3 drives the rotation of the first bevel gear 9. However, due to the height design of the disinfection tank 10, the clean water inside the sewage treatment tank 2 will eventually flow into the disinfection tank 10. Then, disinfectant is added into the disinfection tank 10 through the disinfectant inlet 25. However, since the upper surface of the disinfection tank 10 is fixedly installed with a support plate 11, and the inside of the support plate 11 is rotatably connected to the stirring shaft 12, and since the first bevel gear 9 and the second bevel gear 13 mesh with each other, the rotation of the first bevel gear 9 drives the stirring shaft 12 to rotate inside the support plate 11, thereby enabling the support plate 11 to fully stir the disinfectant and clean water inside the disinfection tank 10.

[0028] The upper surface of the sewage treatment tank 2 is fixedly equipped with a dual-shaft motor 15. The right output shaft of the dual-shaft motor 15 is fixedly sleeved with a first pulley 16. The surface of the sewage injection channel 3 is fixedly sleeved with a second pulley 17. A belt 18 is connected between the first pulley 16 and the second pulley 17.

[0029] The starting of the dual-axis motor 15 drives the first pulley 16 to rotate. Due to the transmission effect of the belt 18, the second pulley 17 is driven to rotate, which in turn drives the sewage injection channel 3 to rotate inside the sewage treatment tank 2. This allows the impurities attached to the inside of the filter disc 8 to detach from the water and finally fall into the debris tray 29.

[0030] The vibration structure includes a cam 19 fixedly sleeved on the left output shaft of the dual-axis motor 15. The left output shaft of the dual-axis motor 15 is rotatably connected to the left wall of the sewage treatment tank 2. A fixed column 20 is fixedly connected to the inner side of the sewage treatment tank 2. A striking component 21 is rotatably connected to the surface of the fixed column 20. A second spring 22 is fixedly connected between the inner sides of the two striking components 21. A ball bearing 23 is rotatably connected inside the striking component 21.

[0031] The rotation of the output shaft at the left end of the dual-axis motor 15 drives the rotation of the cam 19. Since the striking component 21 is located inside the fixed column 20, when the cam 19 pushes the upper part of the striking component 21, the striking component 21 rotates along the fixed column 20 as the axis, thereby realizing the ball 23 pushing the filter disc 8. When the cam 19 disengages from the upper part of the striking component 21, the second spring 22 is in a stretched state, which can restore the striking component 21 to its initial position. At the same time, due to the design of the ball 23, the impact between the striking component 21 and the filter disc 8 is reduced because the filter disc 8 is still rotating. Rolling friction is used to replace sliding friction, thereby increasing the service life of the filter disc 8 and the striking component 21.

[0032] The front surface of the disinfection box 10 is provided with a water outlet 24, and the right side surface of the disinfection box 10 is provided with a disinfectant inlet 25.

[0033] The disinfected water inside the disinfection tank 10 can be released through the outlet 24, and disinfectant can be injected into the disinfection tank 10 through the disinfectant inlet 25.

[0034] Among them, a support component 26 is fixedly connected to the upper surface of the base plate 1, and a sewage inlet 27 is fixedly connected to the rear end of the support component 26. The support component 26 is rotatably connected to the sewage inlet channel 3.

[0035] By rotating the support component 26 to the sewage injection channel 3, sewage can be stably injected into the sewage injection channel 3. At the same time, since the sewage inlet 27 can be connected to an external pipe, sewage can be injected into the sewage injection channel 3. In particular, the injected sewage is always located below the debris tray 29.

[0036] Among them, a support frame 28 is fixedly connected to the upper surface of the base plate 1, and a miscellaneous tray 29 is fixedly connected to the upper surface of the support frame 28.

[0037] The support frame 28 provides support to the debris tray 29. However, since the debris tray 29 is higher on the right and lower on the left, the impurities on the inner surface of the filter plate 8 will fall onto the upper surface of the debris tray 29 after being knocked. Since the impurities are extracted from the water and are in the form of slurry, they are eventually collected and processed at the left end of the debris tray 29 due to the gravity of the impurities.

[0038] Working principle and usage process of this utility model:

[0039] When the staff injects sewage into the support assembly 26 through the sewage inlet 27, it then flows into the sewage inlet channel 3. By starting the dual-axis motor 15, the rotation of the output shaft at the right end of the dual-axis motor 15 drives the first pulley 16 to rotate, which in turn drives the second pulley 17 to rotate due to the transmission action of the belt 18. This causes the sewage inlet channel 3 to rotate inside the sewage treatment tank 2. Since the surface of the sewage inlet channel 3 is fixedly connected with fixing strips 4, the two closest adjacent fixing strips 4 are connected by connecting rings 5. At the same time, impurities in the sewage remain on the inner side of the filter disc 8. When the filter disc 8 is above the debris tray 29, the filter disc 8 is struck by the vibration structure, causing the filter disc 8 to move relative to the inside of the slide 6. Since the first spring 7 fixedly connected inside the fixing strip 4 is fixedly connected to the filter disc 8, the impurities are shaken down into the debris tray 29, and then the impurities flow out from the left end of the debris tray 29.

[0040] When the staff starts the dual-shaft motor 15, the rotation of the sewage injection channel 3 drives the rotation of the first bevel gear 9. However, due to the height design of the disinfection tank 10, the clean water inside the sewage treatment tank 2 will eventually flow into the disinfection tank 10. Then, disinfectant is added into the disinfection tank 10 through the disinfectant inlet 25. However, since the upper surface of the disinfection tank 10 is fixedly installed with a support plate 11, and the inside of the support plate 11 is rotatably connected to the stirring shaft 12, and since the first bevel gear 9 and the second bevel gear 13 mesh with each other, the rotation of the first bevel gear 9 drives the stirring shaft 12 to rotate inside the support plate 11, thereby enabling the support plate 11 to fully stir the disinfectant and clean water inside the disinfection tank 10.

[0041] The starting of the dual-axis motor 15 drives the first pulley 16 to rotate. Due to the transmission effect of the belt 18, the second pulley 17 is driven to rotate, which in turn drives the sewage injection channel 3 to rotate inside the sewage treatment tank 2. This allows the impurities attached to the inside of the filter disc 8 to detach from the water and finally fall into the debris tray 29.

[0042] The rotation of the output shaft at the left end of the dual-axis motor 15 drives the rotation of the cam 19. Since the striking component 21 is located inside the fixed column 20, when the cam 19 pushes the upper part of the striking component 21, the striking component 21 rotates along the fixed column 20 as the axis, thereby realizing the ball 23 pushing the filter disc 8. When the cam 19 disengages from the upper part of the striking component 21, the second spring 22 is in a stretched state, which can restore the striking component 21 to its initial position. At the same time, due to the design of the ball 23, the impact between the striking component 21 and the filter disc 8 is reduced because the filter disc 8 is still rotating. Rolling friction is used to replace sliding friction, thereby increasing the service life of the filter disc 8 and the striking component 21.

[0043] The disinfected water inside the disinfection tank 10 can be released through the outlet 24, and disinfectant can be injected into the disinfection tank 10 through the disinfectant inlet 25.

[0044] By rotating the support component 26 to the sewage injection channel 3, sewage can be stably injected into the sewage injection channel 3. At the same time, since the sewage inlet 27 can be connected to an external pipe, sewage can be injected into the sewage injection channel 3. In particular, the injected sewage is always located below the debris tray 29.

[0045] The support frame 28 provides support to the debris tray 29. However, since the debris tray 29 is higher on the right and lower on the left, the impurities on the inner surface of the filter plate 8 will fall onto the upper surface of the debris tray 29 after being knocked. Since the impurities are extracted from the water and are in the form of slurry, they are eventually collected and processed at the left end of the debris tray 29 due to the gravity of the impurities.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rotary disc filter for wastewater treatment, comprising a base plate (1), characterized in that: A sewage treatment tank (2) is fixedly connected to the upper surface of the base plate (1). A sewage injection channel (3) is rotatably connected inside the sewage treatment tank (2). A fixing strip (4) is fixedly connected to the surface of the sewage injection channel (3). A connecting ring (5) is fixedly connected to one end of the fixing strip (4). Slide grooves (6) are provided on both sides of the fixing strip (4). A first spring (7) is fixedly connected inside the slide groove (6). A filter disc (8) is fixedly connected to one end of the first spring (7). The filter disc (8) is movably connected to the slide groove (6). A vibration structure is provided on the upper part of the sewage treatment tank (2).

2. The rotary disc filter for wastewater treatment according to claim 1, characterized in that: A first bevel gear (9) is fixedly connected to the right end of the sewage injection channel (3). A disinfection box (10) is fixedly connected to the upper surface of the base plate (1). A support plate (11) is fixedly connected to the upper surface of the disinfection box (10). A stirring shaft (12) is rotatably connected inside the support plate (11). A second bevel gear (13) is fixedly connected to the upper end of the stirring shaft (12). The second bevel gear (13) meshes with the first bevel gear (9). A stirring rod (14) is fixedly connected to the surface of the stirring shaft (12).

3. A rotary filter for wastewater treatment according to claim 1, characterized in that: A dual-axis motor (15) is fixedly installed on the upper surface of the sewage treatment tank (2). A first pulley (16) is fixedly sleeved on the right output shaft of the dual-axis motor (15). A second pulley (17) is fixedly sleeved on the surface of the sewage injection channel (3). A belt (18) is connected between the first pulley (16) and the second pulley (17).

4. A rotary filter for wastewater treatment according to claim 1, characterized in that: The vibration structure includes a cam (19) fixedly sleeved on the left output shaft of the dual-axis motor (15). The left output shaft of the dual-axis motor (15) is rotatably connected to the left wall of the sewage treatment tank (2). A fixed column (20) is fixedly connected to the inner side of the sewage treatment tank (2). A striking component (21) is rotatably connected to the surface of the fixed column (20). A second spring (22) is fixedly connected between the inner sides of the two striking components (21). A ball bearing (23) is rotatably connected inside the striking component (21).

5. A rotary filter for wastewater treatment according to claim 2, characterized in that: The front surface of the disinfection box (10) is provided with a water outlet (24), and the right side surface of the disinfection box (10) is provided with a disinfectant inlet (25).

6. A rotary filter for wastewater treatment according to claim 1, characterized in that: A support assembly (26) is fixedly connected to the upper surface of the base plate (1), and a sewage inlet (27) is fixedly connected to the rear end of the support assembly (26). The support assembly (26) is rotatably connected to the sewage inlet channel (3).

7. A rotary filter for wastewater treatment according to claim 1, characterized in that: A support frame (28) is fixedly connected to the upper surface of the base plate (1), and a miscellaneous tray (29) is fixedly connected to the upper surface of the support frame (28).