A fiber disc filter for wastewater treatment

By introducing a backwashing component into the fiber disc filter tank, the filter cloth is cleaned regularly, which solves the problem of sludge clogging, achieves efficient filtration and stable effluent quality, and extends the service life of the equipment.

CN224422181UActive Publication Date: 2026-06-30JIANGSU YIXINGXINGCHEN ENVIRONMENTAL ENG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU YIXINGXINGCHEN ENVIRONMENTAL ENG CO LTD
Filing Date
2025-06-19
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

After prolonged use, traditional fiber disc filters will accumulate sludge in the fiber filter cloth, forming a sludge layer that clogs the filter cloth and affects the filtration effect and the quality of the effluent.

Method used

A wastewater treatment fiber disc filter was designed, comprising a drive assembly, a disc, and a backwash assembly. The filter cloth is periodically cleaned by a backwash pump and a backwash pipe system to remove adsorbed sludge particles and maintain the filter cloth's permeability.

Benefits of technology

To prevent filter cloth clogging, maintain high-efficiency filtration capacity, extend equipment life, ensure that the effluent water quality meets the national Class A standard, and improve system treatment efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a fiber disc filter, belonging to the technical field of wastewater treatment equipment, specifically relating to a wastewater treatment fiber disc filter, including: a tank body, a drive assembly, a disc, and a backwashing assembly; the drive assembly is installed on the tank body, the disc is installed on the drive assembly and located inside the tank body to rotate with the drive assembly, and the backwashing assembly is installed on one side of the tank body and communicates with the disc and the tank body; the backwashing assembly includes: a backwashing pump, a backwashing pipe, an electric valve, a tee, and a connecting pipe; this utility model removes adsorbed sludge particles by flushing the filter cloth with high-intensity water flow, maintaining the permeability of the filter cloth, and at the same time, through regular backwashing, it can keep the filter cloth clean and operate efficiently, thereby improving the treatment efficiency of the entire system and the stability and quality of the effluent.
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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 in wastewater treatment plants are a type of wastewater treatment equipment that can effectively remove pollutants such as organic matter, suspended solids, and particulate matter from wastewater, thereby achieving the purpose of purifying wastewater.

[0003] The working principle of a fiber disc filter is as follows: wastewater flows into the filter from the inlet and passes through the filter layer inside the filter. Suspended solids and particulate matter in the wastewater are captured by the fiber screen in the filter layer and fixed in the filter layer. After passing through the filter layer, the pollutants are purified and the clean water flows out from the outlet of the filter.

[0004] Traditional fiber disc filters only backwash the fiber discs. Over time, some sludge will be adsorbed into the fiber filter cloth, gradually forming a sludge layer. If backwashing is not performed, this sludge will clog the filter cloth, affecting the filtration effect and the quality of the effluent. Utility Model Content

[0005] Purpose of the utility model: To provide a fiber disc filter for sewage treatment, solving the problems mentioned above.

[0006] Technical solution: A wastewater treatment fiber disc filter, comprising: a tank body, a drive assembly, a disc, and a backwashing assembly;

[0007] The drive assembly is mounted on the pool body, the turntable is mounted on the drive assembly and located inside the pool body to rotate with the drive assembly, and the backwash assembly is mounted on one side of the pool body and communicates with the turntable and the pool body;

[0008] The backwash assembly includes: a backwash pump, a backwash pipe, an electric valve, a tee, and a connecting pipe; the output end of the backwash pipe is connected to the input end of the backwash pump, the output ends of the backwash pipe and the connecting pipe are connected via a tee, the electric valve is installed on the connecting pipe, and the input end of the connecting pipe is connected to the tank and the turntable respectively.

[0009] In a further embodiment, at least two connecting pipes are provided, one end of which is fixedly connected to the inside of the pool body via a flange, and the other end is fixedly connected to the turntable via a flange.

[0010] In a further embodiment, the drive assembly includes: a motor, fixedly mounted on the pool body; a drive sprocket, sleeved on the motor shaft; a drive shaft, with both ends mounted in the pool body via bearing seats; a driven sprocket, sleeved on the drive shaft; and a drive chain, connected to both the drive sprocket and the driven sprocket to drive the drive shaft to rotate.

[0011] In a further embodiment, the rotating shaft is provided in a plurality of locations and is mounted on the drive shaft at equal intervals to rotate with the drive shaft.

[0012] In a further embodiment, the turntable consists of a disc body and a filter cloth.

[0013] In a further embodiment, one end of the pool is provided with an inlet pipe and the other end with an outlet pipe, and a number of drain pipes are provided on one side of the pool.

[0014] In a further embodiment, the output end of the backwash pump is connected to a sewage pipe network.

[0015] In a further embodiment, the two sides of the turntable are fixed to the pool body by brackets.

[0016] This utility model has the following beneficial effects:

[0017] 1. Preventing filter cloth clogging: During the filtration process, some sludge will be adsorbed into the fiber filter cloth, gradually forming a sludge layer. If backwashing is not performed, this sludge will clog the filter cloth, affecting the filtration effect and the quality of the effluent. Backwashing uses a high-intensity water flow to flush the filter cloth, removing the adsorbed sludge particles and maintaining the filter cloth's permeability.

[0018] 2. Maintain High-Efficiency Filtration: Backwashing restores the filtration capacity of the filter cloth, ensuring the filter can continuously and efficiently remove suspended solids, organic matter, and other pollutants from wastewater. Regular backwashing keeps the filter cloth clean and operates efficiently, thereby improving the overall system's treatment efficiency.

[0019] 3. Extend equipment lifespan: Regular backwashing reduces wear and aging of the filter cloth, extending its service life. Clogged filter cloth increases filtration resistance, causing equipment overload and eventually damaging the filter cloth and other equipment components. Backwashing effectively prevents this, protecting the equipment.

[0020] 4. Ensure effluent water quality: Backwashing prevents algae growth and filter cloth hardening, ensuring that the effluent water quality meets the national Class A standard. Regular backwashing maintains the cleanliness and good filtration performance of the filter cloth, thereby ensuring stable and high-quality effluent water. Attached Figure Description

[0021] Figure 1 This is a plan view of the present invention.

[0022] Figure 2 This is an elevation view of the present invention.

[0023] Figure 3 This is a schematic diagram of the present invention.

[0024] Reference numerals in the attached drawings: 1. Tank body; 3. Turntable; 40. Backwash pump; 41. Backwash pipe; 42. Electric valve; 43. Tee; 44. Connecting pipe; 20. Motor; 21. Drive sprocket; 22. Drive shaft; 3. Bearing seat; 24. Driven sprocket; 25. Drive chain; 30. Disc body; 31. Filter cloth; 10. Inlet pipe; 11. Outlet pipe; 12. Drain pipe; 13. Support. Detailed Implementation

[0025] 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.

[0026] 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.

[0027] 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.

[0028] A wastewater treatment fiber disc filter includes: a tank body 1, a drive assembly, a disc 3, and a backwashing assembly;

[0029] In one embodiment, such as Figures 1 to 3As shown, the drive assembly is mounted on the pool body 1, the turntable 3 is mounted on the drive assembly and located inside the pool body 1 to rotate with the drive assembly, and the backwash assembly is mounted on one side of the pool body 1 and is connected to the turntable 3 and the pool body 1.

[0030] In one embodiment, such as Figures 1 to 3 As shown, the backwash assembly includes: a backwash pump 40, a backwash pipe 41, an electric valve 42, a tee 43, and a connecting pipe 44; the output end of the backwash pipe 41 is connected to the input end of the backwash pump 40, the output ends of the backwash pipe 41 and the connecting pipe 44 are connected through the tee 43, the electric valve 42 is installed on the connecting pipe 44, and the input end of the connecting pipe 44 is connected to the tank body 1 and the turntable 3 respectively.

[0031] In one embodiment, such as Figures 1 to 3 As shown, at least two connecting pipes 44 are provided, one end of which is fixedly connected to the inside of the pool body 1 via a flange, and the other end is fixedly connected to the turntable 3 via a flange.

[0032] In one embodiment, such as Figures 1 to 3 As shown, the drive assembly includes: a motor 20, fixedly mounted on the pool body 1; a drive sprocket 21, sleeved on the rotating shaft of the motor 20; a transmission shaft 222, with both ends mounted inside the pool body 1 via bearing seats 3; a driven sprocket 24, sleeved on the transmission shaft 222; and a transmission chain 25, connected to both the drive sprocket 21 and the driven sprocket 24 to drive the transmission shaft 222 to rotate.

[0033] In one embodiment, such as Figures 1 to 3 As shown, the rotating shafts are provided in a plurality of manner and are installed on the transmission shaft 222 at equal intervals to rotate with the transmission shaft 222.

[0034] In one embodiment, such as Figures 1 to 3 As shown, the turntable 3 is composed of a disc body 30 and a filter cloth 31.

[0035] In one embodiment, such as Figures 1 to 3 As shown, one end of the pool body 1 is provided with an inlet pipe 10 and the other end is provided with an outlet pipe 11. Several vent pipes 12 are provided on one side of the pool body 1.

[0036] In one embodiment, such as Figures 1 to 3 As shown, the output end of the backwash pump 40 is connected to the sewage pipe network.

[0037] In one embodiment, such as Figures 1 to 3 As shown, the two sides of the turntable 3 are fixed to the pool body 1 by the bracket 13.

[0038] Working Principle: When this invention is in operation, the inlet pipe 10 first connects to the sewage tank for water intake. Simultaneously, the drive assembly operates, with the motor 20 rotating to drive the drive sprocket 21, which in turn drives the driven sprocket 24 via the transmission chain 25. This, in turn, drives the transmission shaft 222 via the bearing seat 3, which in turn drives the turntable 3 to rotate. Simultaneously, as sewage passes through the filter cloth 31, the fiber material adsorbs suspended solids, organic matter, and other pollutants. The filtrate is discharged through the outlet pipe 11. Meanwhile, the backwashing system operates periodically. First, the backwash pump 40 operates, using the connecting pipe 44 and the backwash pipe 41 to suck up blockages from the filter cloth 31 and the tank 1, which are then discharged through the backwash pump 40. Therefore, this invention is applicable to various sewage treatment scenarios, including domestic sewage and industrial wastewater treatment. Its high-efficiency filtration effect and stable operating performance have led to its widespread application in the water treatment industry.

[0039] 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 fiber disc filter for wastewater treatment, characterized in that, include: Pool body, drive assembly, turntable, and backwash assembly; The drive assembly is mounted on the pool body, the turntable is mounted on the drive assembly and located inside the pool body to rotate with the drive assembly, and the backwash assembly is mounted on one side of the pool body and communicates with the turntable and the pool body; The backwash assembly includes: a backwash pump, a backwash pipe, an electric valve, a tee, and a connecting pipe; The output end of the backwash pipe is connected to the input end of the backwash pump. The output end of the backwash pipe and the connecting pipe are connected via a tee. The electric valve is installed on the connecting pipe. The input end of the connecting pipe is connected to the tank and the turntable, respectively.

2. The wastewater treatment fiber disc filter according to claim 1, characterized in that, The connecting pipe is provided with at least two pipes, one of which is fixedly connected to the inside of the pool body by a flange, and the other end is fixedly connected to the turntable by a flange.

3. The wastewater treatment fiber disc filter according to claim 1, characterized in that, The drive assembly includes: a motor, fixedly mounted on the pool body; a drive sprocket, sleeved on the motor shaft; a drive shaft, with both ends mounted in the pool body via bearing seats; a driven sprocket, sleeved on the drive shaft; and a drive chain, connected to both the drive sprocket and the driven sprocket to drive the drive shaft to rotate.

4. The wastewater treatment fiber disc filter according to claim 3, characterized in that, The rotating shaft is provided in several parts and is installed on the transmission shaft at equal intervals so as to rotate with the transmission shaft.

5. The wastewater treatment fiber disc filter according to claim 1, characterized in that, The turntable consists of a disc body and a filter cloth.

6. The wastewater treatment fiber disc filter according to claim 1, characterized in that, The pool is equipped with an inlet pipe at one end and an outlet pipe at the other end, and several drain pipes are provided on one side of the pool.

7. The wastewater treatment fiber disc filter according to claim 1, characterized in that, The output end of the backwash pump is connected to the sewage pipe network.

8. The wastewater treatment fiber disc filter according to claim 1, characterized in that, The turntable is fixed to the pool body on both sides by brackets.