A sewage treatment fiber disc filter tank
By designing a diversion structure and a dual backwash pump system, the problems of low efficiency and repetitive operation of traditional fiber disc filters have been solved, achieving high efficiency and cost reduction in wastewater treatment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU XINGCHEN ENVIRONMENTAL PROTECTION GROUP
- Filing Date
- 2025-07-18
- Publication Date
- 2026-06-19
AI Technical Summary
Traditional fiber disc filters suffer from low efficiency and repetitive operation in wastewater treatment, especially when different levels of water in the clarifier require different filtration treatments, leading to increased treatment costs.
A structure including an inlet tank, an outlet tank, a filter tank, an overflow tank, and a backwash tank was designed. By setting up dual backwash pumps and electrically controlled valves, the flow of water at different levels can be separated and filtered efficiently, avoiding repetitive work.
It improves the efficiency of wastewater treatment, reduces treatment costs, and reduces unnecessary filtration and backwashing operations by diverting water sources at different levels.
Smart Images
Figure CN224370780U_ABST
Abstract
Description
Technical Field
[0001] This utility model discloses a fiber disc filter, which belongs to the technical field of sewage treatment equipment, and specifically relates to a fiber disc filter for sewage treatment. Background Technology
[0002] Fiber disc filters excel in both greywater and wastewater treatment. They are widely used in numerous wastewater treatment plants worldwide, particularly in cooling water circulation and reuse projects following advanced wastewater treatment. This equipment effectively removes pollutants such as total suspended solids, phosphorus, and heavy metals, while also providing high-quality reclaimed water.
[0003] In existing fiber disc filters, when wastewater is input, the wastewater comes from a clarification tank, which includes a low-density clarification tank and a high-density clarification tank. When wastewater enters the influent from the two clarification tanks, the water at the bottom is more turbid due to the presence of silt and requires filtration and backwashing, while the water at the top does not require filtration and backwashing. Traditional fiber disc filters directly perform filtration and backwashing, which is not only inefficient but also involves repetitive work, thereby increasing the cost of wastewater treatment. Utility Model Content
[0004] Purpose of the utility model: To provide a fiber disc filter for sewage treatment, which solves the problems mentioned above.
[0005] Technical solution: A wastewater treatment fiber disc filter, comprising: an inlet tank, an outlet tank, a filter tank, an overflow tank, and a backwash tank;
[0006] The inlet pool has an inlet pipe at its input end and an output end that is connected to the inlet of the filter pool and the inlet of the superimposed water tank. The outlet of the filter pool and the outlet of the superimposed water tank are connected to the input end of the outlet pool. The outlet of the outlet pool has an outlet pipe at its output end. The backwash pool is located on one side of the filter pool.
[0007] The backwash tank is equipped with a backwashing device, and the filter tank is equipped with a fiber filter disc. The input end of the backwashing device is connected to the sludge discharge port of the fiber filter disc, and the output end is connected to the sewage pipe network.
[0008] In a further embodiment, the water inlet pipe is provided with two pipes, which are respectively connected to the high-density clarifier and the low-density clarifier.
[0009] In a further embodiment, the backwashing device includes a first backwashing pump, a second backwashing pump, a main drain pipe, a first drain inlet pipe, a second drain inlet pipe, a first drain outlet pipe, and a second drain outlet pipe;
[0010] The input ends of the first and second sewage inlet pipes are simultaneously connected to the bottom of the filter tank. The sludge discharge port of the fiber filter disc is connected to the bottom of the filter tank. The output end of the first sewage inlet pipe is connected to the input end of the first backwash pump. The output end of the first backwash pump is connected to the input end of the first sewage outlet pipe. The output end of the second sewage inlet pipe is connected to the input end of the second backwash pump. The output end of the second backwash pump is connected to the input end of the second sewage outlet pipe. The output ends of the first and second sewage outlet pipes are simultaneously connected to the input end of the main sewage outlet pipe. The output end of the main sewage outlet pipe is connected to the sewage network.
[0011] In a further embodiment, an electric ball valve is provided on the first sewage inlet pipe and the second sewage inlet pipe, and a ball valve and a check valve are provided between the output end of the first backwash pump and the input end of the first sewage outlet pipe, and between the output end of the second backwash pump and the input end of the second sewage outlet pipe.
[0012] In a further embodiment, the inlet of the filter pool is provided with an electric inlet gate at the input end and an inlet weir plate at the output end.
[0013] In a further embodiment, the water outlet pool is provided with a partition to divide the water outlet pool into a first water pool and a second water pool, the water outlet of the filter pool is connected to the first water pool, and the water outlet of the bypass trough is connected to the second water pool.
[0014] In a further embodiment, the height of the partition is lower than the height of the outlet pool, and the first pool is provided with an outlet weir plate.
[0015] In a further embodiment, there are two filtration tanks and two backwash tanks.
[0016] Beneficial effects: By using a super-flow tank, this utility model can directly transport the water source at the top of the inlet pool to the outlet pool. At the same time, this utility model adopts a double filtration pool and a backwashing pool, which can greatly improve work efficiency, avoid repetitive work, and reduce sewage treatment costs. Attached Figure Description
[0017] Figure 1 This is a process plan view of this utility model.
[0018] Figure 2 This is a cross-sectional view (I-I) of this utility model.
[0019] Figure 3 This is a cross-sectional view (II-II) of this utility model.
[0020] Reference numerals in the attached drawings: 1. Inlet pool; 2. Outlet pool; 3. Filter pool; 4. Overlapping water tank; 5. Backwash pool; 6. Backwashing device; 7. Fiber filter disc; 8. First backwash pump; 9. Second backwash pump; 10. Main drain pipe; 11. First drain inlet pipe; 12. Second drain inlet pipe; 13. First drain outlet pipe; 14. Second drain outlet pipe; 15. Electric ball valve; 16. Ball valve; 17. Check valve; 18. Electric inlet gate; 19. Inlet weir plate; 20. Baffle plate; 21. First pool; 22. Second pool; 23. Outlet weir plate; 24. Inlet pipe of high-density clarifier; 25. Inlet pipe of low-density clarifier; 26. Outlet pipe. Detailed Implementation
[0021] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0024] A wastewater treatment fiber disc filter includes: an inlet tank 1, an outlet tank 2, a filter tank 3, an overflow tank 4, and a backwash tank 5.
[0025] In one embodiment, such as Figures 1 to 3As shown, the inlet pool 1 has an inlet pipe at its input end and its output end is connected to the inlet hole of the filter pool 3 and the inlet hole of the superimposed water tank 4. The outlet hole of the filter pool 3 and the outlet hole of the superimposed water tank 4 are connected to the input end of the outlet pool 2. The outlet pool 2 has an outlet pipe 26 at its output end. The backwash pool 5 is located on one side of the filter pool 3.
[0026] The backwash tank 5 is equipped with a backwashing device 6, and the filter tank 3 is equipped with a fiber filter disc 7. The input end of the backwashing device 6 is connected to the sludge discharge port of the fiber filter disc 7, and the output end is connected to the sewage pipe network.
[0027] In one embodiment, such as Figures 1 to 3 As shown, the water inlet pipe has two pipes, which are respectively connected to the high-density clarifier and the low-density clarifier.
[0028] In one embodiment, such as Figures 1 to 3 As shown, the backwashing device 6 includes a first backwashing pump 8, a second backwashing pump 9, a main drain pipe 10, a first drain inlet pipe 11, a second drain inlet pipe 12, a first drain outlet pipe 13, and a second drain outlet pipe 14.
[0029] The input ends of the first sewage inlet pipe 11 and the second sewage inlet pipe 12 are simultaneously connected to the bottom of the filter tank 3. The sludge discharge port of the fiber filter disc 7 is connected to the bottom of the filter tank 3. The output end of the first sewage inlet pipe 11 is connected to the input end of the first backwash pump 8. The output end of the first backwash pump 8 is connected to the input end of the first sewage outlet pipe 13. The output end of the second sewage inlet pipe 12 is connected to the input end of the second backwash pump 9. The output end of the second backwash pump 9 is connected to the input end of the second sewage outlet pipe 14. The output ends of the first sewage outlet pipe 13 and the second sewage outlet pipe 14 are simultaneously connected to the input end of the main sewage pipe 10. The output end of the main sewage pipe 10 is connected to the sewage network.
[0030] In one embodiment, such as Figures 1 to 3 As shown, electric ball valves 15 are provided on the first sewage inlet pipe 11 and the second sewage inlet pipe 12. Ball valves 16 and check valves 17 are provided between the output end of the first backwash pump 8 and the input end of the first sewage outlet pipe 13, and between the output end of the second backwash pump 9 and the input end of the second sewage outlet pipe 14.
[0031] In one embodiment, such as Figures 1 to 3 As shown, the filter tank 3 has an electric inlet gate 18 at the input end and an inlet weir plate 19 at the output end.
[0032] In one embodiment, such as Figures 1 to 3As shown, the water outlet pool 2 is provided with a partition 20 to divide the water outlet pool 2 into a first water pool 21 and a second water pool 22. The water outlet of the filter pool 3 is connected to the first water pool 21, and the water outlet of the overflow water tank 4 is connected to the second water pool 22.
[0033] In one embodiment, such as Figures 1 to 3 As shown, the height of the partition 20 is lower than the height of the outlet pool 2, and the first pool 21 is provided with an outlet weir plate 23.
[0034] In one embodiment, such as Figures 1 to 3 As shown, there are two of the filter tank 3 and the backwash tank 5.
[0035] Working Principle: When this invention is in operation, wastewater is first fed into the inlet pool 1 through the high-density clarifier inlet pipe 24 and the low-density clarifier inlet pipe 25. The lower water is more turbid and requires filtration and backwashing, while the upper water does not. The wastewater requiring backwashing enters the filter pool 3 through the inlet hole. The electric inlet gate 18 and the inlet weir plate 19 control the flow rate. Simultaneously, the fiber filter disc 7 filters out sediment. The filtered water exits through the outlet hole into the first water pool 21 of the outlet pool 2, while the sediment is discharged through the sludge outlet pipe of the fiber filter disc 7 into the filter. At the bottom of pool 3, sludge is simultaneously recovered through backwashing device 6. The first backwash pump 8 and the second backwash pump 9 in backwashing device 6 work, thereby sucking up the sludge from the bottom of filter pool 3 through the first sewage inlet pipe 11 and the second sewage inlet pipe 12, and outputting it through the first sewage outlet pipe 13 and the second sewage outlet pipe 14 to the sewage main pipe 10. In addition, the water in the upper part of the inlet pool 1 is fed into the second water pool 22 in the outlet pool 2 through the overflow water tank 4. At the same time, the water in the first water pool 21 flows to the second water pool 22 through the outlet weir plate 23 and flows out to the disinfection pool through the outlet pipe 26.
[0036] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. A wastewater treatment fiber disc filter, characterized by, include: Inlet tank, outlet tank, filtration tank, overflow tank and backwash tank; The inlet pool has an inlet pipe at its input end and an output end that is connected to the inlet of the filter pool and the inlet of the superimposed water tank. The outlet of the filter pool and the outlet of the superimposed water tank are connected to the input end of the outlet pool. The outlet of the outlet pool has an outlet pipe at its output end. The backwash pool is located on one side of the filter pool. The backwash tank is equipped with a backwashing device, and the filter tank is equipped with a fiber filter disc. The input end of the backwashing device is connected to the sludge discharge port of the fiber filter disc, and the output end is connected to the sewage pipe network.
2. The disc filter according to claim 1, wherein The water inlet pipe has two pipes, which are respectively connected to the high-density clarification tank and the low-density clarification tank.
3. The disc filter according to claim 1, wherein The backwashing device includes a first backwashing pump, a second backwashing pump, a main drain pipe, a first drain inlet pipe, a second drain inlet pipe, a first drain outlet pipe, and a second drain outlet pipe; The input ends of the first and second sewage inlet pipes are simultaneously connected to the bottom of the filter tank. The sludge discharge port of the fiber filter disc is connected to the bottom of the filter tank. The output end of the first sewage inlet pipe is connected to the input end of the first backwash pump. The output end of the first backwash pump is connected to the input end of the first sewage outlet pipe. The output end of the second sewage inlet pipe is connected to the input end of the second backwash pump. The output end of the second backwash pump is connected to the input end of the second sewage outlet pipe. The output ends of the first and second sewage outlet pipes are simultaneously connected to the input end of the main sewage outlet pipe. The output end of the main sewage outlet pipe is connected to the sewage network.
4. The wastewater treatment fiber disc filter according to claim 3, characterized in that, Electric ball valves are provided on the first sewage inlet pipe and the second sewage inlet pipe. Ball valves and check valves are provided between the output end of the first backwash pump and the input end of the first sewage outlet pipe, and between the output end of the second backwash pump and the input end of the second sewage outlet pipe.
5. A wastewater treatment fiber disc filter according to claim 1, characterized in that, The filter tank has an electric inlet gate at the inlet and an inlet weir at the outlet.
6. A wastewater treatment fiber disc filter according to claim 1, characterized in that, The water outlet pool is equipped with a partition to divide it into a first water pool and a second water pool. The water outlet of the filter pool is connected to the first water pool, and the water outlet of the bypass trough is connected to the second water pool.
7. A wastewater treatment fiber disc filter according to claim 6, characterized in that, The height of the partition is lower than the height of the outlet pool, and the first pool is equipped with an outlet weir plate.
8. A wastewater treatment fiber disc filter according to claim 6, characterized in that, There are two filtration tanks and two backwash tanks.