Fiber turntable filtering equipment

Abstract

The utility model relates to the technical field of sewage treatment, in particular to fiber turntable filtering equipment. The fiber turntable filtering equipment comprises a reaction bin and a filtering bin, the filtering bin is arranged beside the reaction bin; a filtering device and a cleaning device are arranged in the filtering bin; the filtering device comprises a hollow pipe and a fiber filtering disc arranged on the hollow pipe; a hollow structure in the fiber filtering disc is connected with the hollow pipe; the cleaning device comprises a motor, a cleaning suction head and a first sewage suction pump; the output end of the motor is connected with the hollow pipe; the cleaning suction heads are arranged on the two sides of the fiber filtering disc; the first sewage suction pump is connected with a sewage suction header pipe, the sewage suction header pipe is provided with a sewage suction branch pipe, and the sewage suction branch pipe is provided with a control valve and the cleaning suction head. And the cleaning suction head sucks dirt on the fiber filter disc, and the dirt enters the dirt suction main pipe through the dirt suction branch pipe to be discharged. Each cleaning head can be independently controlled, so that cleaning and sewage filtering are realized at the same time, the sewage treatment progress is not influenced, and the sewage suction capacity is higher.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a fiber disc filter device. Background Technology

[0002] Fiber disc filters are used for advanced wastewater treatment, installed after conventional secondary wastewater treatment systems or after the secondary sedimentation tank. They primarily remove total suspended solids (TSS), and with the addition of chemicals, can remove some pollutants such as phosphorus, turbidity, and COD. They are suitable for upgrading existing wastewater treatment plants and for achieving compliant discharge standards in newly built plants, enabling effluent to meet Class B standards. In fiber disc filters, wastewater is filtered from the outside of the filter discs to the inside.

[0003] Some fiber disc filters on the market use cleaning heads to extract and wash the fiber filter discs. Fiber disc filtration equipment typically has multiple fiber filter discs that need cleaning; however, some equipment connects multiple cleaning heads directly to the main drain pipe, meaning only multiple fiber filter discs can be cleaned simultaneously. This design leads to insufficient suction and poor cleaning ability. Furthermore, cleaning multiple fiber filter discs at the same time can affect wastewater filtration.

[0004] For example, Chinese patent application number CN201920722892.4 discloses a fiber disc filter reverse suction device, specifically stating that "one end of the sewage hose is fixedly connected to the sewage main pipe, and a sewage pump is installed on one side of the sewage main pipe. After the hydraulic cylinder is turned, it can drive the telescopic connecting frame to move the sewage support frame up and down, thereby causing the reverse suction disc to rise or fall." This design involves multiple reverse suction discs working simultaneously, which can lead to insufficient suction and poor cleaning ability. Furthermore, cleaning multiple fiber filter discs simultaneously can affect wastewater filtration.

[0005] For example, CN201520783570.2 discloses a novel fiber disc filter, including a central tube. One end of the central tube is equipped with a drive device to rotate it, and the other end is equipped with a bearing seat to support it. Multiple fiber filter cloth discs for filtering oily wastewater are fitted over the central tube. Each fiber filter cloth disc is equipped with a thickness sensor, which is connected to a PLC controller via wired or wireless connection. Both sides of the fiber filter cloth discs are mounted on reverse suction discs, which are connected to a main sewage pipe via branch pipes. The central tube has an outlet. In this design, multiple reverse suction discs operate simultaneously, leading to insufficient suction and poor cleaning ability. Furthermore, simultaneous cleaning of multiple fiber filter discs can negatively impact wastewater filtration. Utility Model Content

[0006] In view of this, the present invention addresses the deficiencies of the existing technology and its main objective is to provide a fiber disc filter device with a cleaning suction head that can be controlled independently, has strong cleaning ability, and does not affect wastewater treatment during cleaning, thereby overcoming the shortcomings of the existing technology.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] This application provides a fiber disc filtration device, including a reaction chamber and a filter chamber; the filter chamber is located beside the reaction chamber, and wastewater in the reaction chamber can flow into the filter chamber; a first liquid level sensor is installed inside the filter chamber; a filtration device and a cleaning device are installed inside the filter chamber; the filtration device includes a hollow tube and a fiber filter disc installed on the hollow tube; the fiber filter disc has a hollow structure inside, which is connected to the hollow tube; the cleaning device includes a motor, a cleaning nozzle, and a first suction pump; the output end of the motor is connected to the hollow tube, and the motor drives the hollow tube to rotate; the cleaning nozzle is located on both sides of the fiber filter disc; a main suction pipe is connected to the first suction pump, and a suction branch pipe is installed on the main suction pipe, with a control valve and the cleaning nozzle installed on the suction branch pipe.

[0009] Preferably, the top of the reaction chamber is provided with lifting lugs; the right side of the reaction chamber is provided with a water inlet, and the left side of the reaction chamber is provided with a water outlet, the height of the water inlet being greater than the height of the water outlet.

[0010] Preferably, the motor is located at the top of the filter chamber, the output end of the motor is connected to the input end of the gearbox, and a belt or chain is sleeved between the output end of the gearbox and the hollow tube.

[0011] Preferably, some of the suction branch pipes are provided with suction hoses, which are connected to the cleaning nozzle from bottom to top; some of the suction branch pipes are provided with suction pipes, which are located on the inner bottom wall of the filter chamber.

[0012] Preferably, the filter chamber is provided with a hanger, and the elastic frame of the cleaning suction head is mounted on the hanger.

[0013] Preferably, the cleaning nozzle includes a housing and bristles disposed on the edge of the housing; the housing is provided with a suction port for sucking up dirt from the fiber filter disc.

[0014] Preferably, the cleaning nozzle is also connected to an air tube, which delivers air to the air vents of the cleaning nozzle.

[0015] Preferably, the reaction chamber and the filter chamber are stainless steel boxes with protective linings on their inner walls.

[0016] Preferably, the filter chamber is provided with an installation bracket; the hollow tube is rotatably mounted on the installation bracket; the hollow tube is provided with a first connecting hole, the fiber filter disc is provided with a second connecting hole, the hollow tube passes through the fiber filter disc, and the first connecting hole and the second connecting hole are connected.

[0017] Preferably, a backwash pump is also connected to the hollow pipe, which can inject water into the hollow pipe.

[0018] This invention has significant advantages and beneficial effects compared with existing technologies. Specifically, as shown in the above technical solution, reagents are added to the reaction chamber to perform preliminary treatment of wastewater. The treated wastewater then flows into the filtration chamber for filtration. The first liquid level sensor in the reaction chamber can detect the liquid level in real time to control the flow rate.

[0019] During cleaning, the cleaning nozzles suck up dirt from the fiber filter discs and discharge it through the suction branch pipes into the main suction pipe. Each suction branch pipe is equipped with an electrically controlled valve, which allows you to select whether to open or close different cleaning nozzles as needed. This design allows for simultaneous cleaning and wastewater filtration without affecting the wastewater treatment progress, while also increasing the suction capacity of the cleaning nozzles. Attached Figure Description

[0020] Figure 1 This is a front view schematic diagram of an embodiment of the present utility model.

[0021] Figure 2 This is a side view schematic diagram of an embodiment of the present utility model.

[0022] Figure 3 This is an internal schematic diagram of an embodiment of the present utility model.

[0023] Figure 4 This is a top view schematic diagram of an embodiment of the present utility model.

[0024] Figure 5 This is a schematic diagram of a cleaning device according to an embodiment of the present invention.

[0025] Figure 6 This is a front view schematic diagram of the cleaning head according to an embodiment of the present invention.

[0026] Explanation of reference numerals in the attached diagram:

[0027] 10. Reaction chamber; 11. Inlet; 12. Outlet; 20. Filter chamber; 21. First liquid level sensor; 22. Hanger; 23. Flexible frame; 24. Mounting bracket; 30. Filter device; 31. Hollow tube; 32. Fiber filter disc; 40. Cleaning device; 41. Motor; 42. Belt; 44. First suction pump; 45. Control valve; 46. Main suction pipe; 47. Branch suction pipe; 48. Suction hose; 49. Suction pipe; 410. Cleaning nozzle; 411. Air vent; 412. Housing; 413. Brush bristles; 414. Suction port. Detailed Implementation

[0028] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0029] Please refer to Figures 1 to 5 As shown, it illustrates the specific structure of a preferred embodiment of the present invention, which is a fiber disc filter device.

[0030] Each cleaning nozzle 410 can be controlled individually, and this design allows for cleaning while filtering, resulting in stronger cleaning capabilities.

[0031] This application provides a fiber disc filtration device, including a reaction chamber 10 and a filter chamber 20; the filter chamber 20 is located beside the reaction chamber 10, and wastewater in the reaction chamber 10 can flow into the filter chamber 20; a first liquid level sensor 21 is installed inside the filter chamber 20; a filtration device 30 and a cleaning device 40 are installed inside the filter chamber 20; the filtration device 30 includes a hollow tube 31 and a fiber filter disc 32 installed on the hollow tube 31; the fiber filter disc 32 has a hollow structure inside, which is connected to the hollow tube 31; the cleaning device 40 includes a motor 40, a cleaning suction head 410, and a first suction pump 44; the output end of the motor 40 is connected to the hollow tube 31, and the motor 40 drives the hollow tube 31 to rotate; the cleaning suction head 410 is installed on both sides of the fiber filter disc 32; a main suction pipe 46 is connected to the first suction pump 44, and a suction branch pipe 47 is installed on the main suction pipe 46, with a control valve 45 and the cleaning suction head 410 installed on the suction branch pipe 47. Chemicals are added to reaction chamber 10 to pretreat the wastewater within. These chemicals can be flocculants, hardness reducers, etc. Filter chamber 20 filters the wastewater. Fiber filter discs 32 are immersed in the wastewater, which passes through them and enters a hollow pipe 31, then exits from the hollow pipe 31. Fiber filter discs 32 isolate dirt and other contaminants. Fiber filter discs 32 are high-efficiency filters, primarily used in wastewater treatment to remove suspended impurities through physical filtration, improving effluent quality. Cleaning device 40 removes dirt from fiber filter discs 32 via suction to ensure their performance. During cleaning, motor 40 drives hollow pipe 31 to rotate, causing fiber filter discs 32 to rotate synchronously; the first suction pump 44 operates, allowing cleaning head 410 to suction away dirt from fiber filter discs 32. During cleaning, the fiber filter discs typically rotate at a speed of 1 revolution per 1.5 minutes (adjustable). The first suction pump 44 uses negative pressure to draw suction from the surface of the filter cloth, removing accumulated sludge particles. Water within the fiber filter disc is simultaneously drawn from the inside out, cleaning the filter cloth. The instantaneous rinsing area accounts for only about 1% of the total area of ​​the fiber filter disc, and the backwashing process is intermittent. During cleaning, two fiber filter discs form a group, controlled by an electric valve on the pipeline of the first suction pump 44. The cleaning of each group alternates during a complete cleaning process of the fiber disc filter tank, while the first suction pump 44 operates continuously. When the influent water quality suddenly deteriorates and the liquid level in the tank rapidly rises to the backwash level, all backwash pumps are activated simultaneously, allowing for backwashing of several groups of fiber filter discs at the same time. The sludge discharge device is also activated simultaneously until the backwashing cycle returns to normal. The first sensor can detect the liquid level in the filter chamber 20 in real time, thereby accurately controlling the amount of wastewater input. The control valve 45 is preferably either a solenoid valve or an electric valve.Since each suction branch pipe 47 is equipped with a control valve 45, the suction power of the cleaning head 410 can be adjusted by switching different control valves 45, thus enabling localized cleaning without affecting the progress of wastewater treatment. A drain outlet is also provided at the bottom of the filter chamber 20 to discharge wastewater.

[0032] Preferably, the top of the reaction chamber 10 is provided with lifting lugs; an inlet 11 is provided on the right side of the reaction chamber 10, and an outlet 12 is provided on the left side of the reaction chamber 10, with the height of the inlet 11 being greater than the height of the outlet 12. The lifting lugs facilitate the hoisting of the reaction chamber 10. The greater height of the inlet 11 than the outlet 12 facilitates the flow of wastewater into the filter chamber 20 under the action of gravity.

[0033] Preferably, the motor 40 is located at the top of the filter chamber 20, and the output end of the motor 40 is connected to the input end of the gearbox. A belt 42 or chain is fitted between the output end of the gearbox and the hollow tube 31. The power of the motor 40 is transmitted to the hollow tube 31 through the gearbox and the belt 42, allowing the hollow tube 31 to rotate. The belt 42 does not have the problem of rusting and facilitates the immersion of the fiber filter disc 32 in sewage.

[0034] Preferably, some of the suction branch pipes 47 are equipped with suction hoses 48, which are connected to the cleaning head 410 from bottom to top; some of the suction branch pipes 47 are equipped with suction pipes 49, which are located on the inner bottom wall of the filter chamber 20. The suction hoses 48 are connected to the cleaning head 410 from bottom to top. This design facilitates pipe routing, avoids interference with the fiber filter disc 32, and results in cleaner routing. The suction pipes 49, located on the inner bottom wall of the filter chamber 20, are used to suck up dirt from inside the filter chamber 20. Therefore, with the combined action of the cleaning head and the suction pipes 49, the dirt inside the filter chamber 20 can be thoroughly removed, resulting in excellent cleaning performance.

[0035] Preferably, the filter chamber 20 is internally provided with a hanger 22, and the elastic frame 23 on the cleaning nozzle 410 is mounted on the hanger 22. The hanger 22 can be a triangular support. The elastic frame 23 can be a spring support. To ensure the corrosion resistance of the elastic frame 23, a plastic layer is injection molded onto the elastic frame 23. The plastic layer can play a corrosion-resistant role, thereby ensuring its service life. The elastic frame 23 can hold the cleaning nozzle in place with a certain force on the fiber filter disc 32. This design ensures better cleaning effect.

[0036] Preferably, the cleaning nozzle 410 includes a housing 412 and bristles 413 disposed on the edge of the housing 412; the housing 412 is provided with a suction port 414, which sucks up dirt from the fiber filter disc 32. The bristles 413 can clean the fiber filter disc.

[0037] Preferably, the cleaning nozzle 410 is also connected to an air tube, which delivers air to the air holes 411 of the cleaning nozzle 410. The air tube is connected to an air compressor via a main air tube, and each air tube is equipped with a solenoid valve to control the opening or closing of the air tube. The air bubbles ejected from the cleaning nozzle 410 burst at the fiber filter disc 32, a design that enhances its cleaning ability. In fact, whether air bubbles are ejected from the air holes 411 of the cleaning head depends on the user's choice and can be set accordingly.

[0038] Preferably, the reaction chamber 10 and the filter chamber 20 are stainless steel enclosures with protective linings on their inner walls. The protective linings are made of corrosion-resistant plastics such as polypropylene, polyethylene, or polyvinyl chloride. The protective linings can be installed on the inner walls of the reaction chamber 10 and the filter chamber 20 using screws or adhesive.

[0039] Preferably, the filter chamber 20 is provided with a mounting bracket 24; the hollow tube 31 is rotatably mounted on the mounting bracket 24; the hollow tube 31 is provided with a first connecting hole, and the fiber filter disc 32 is provided with a second connecting hole. The hollow tube 31 passes through the fiber filter disc 32, and the first connecting hole and the second connecting hole are connected. The hollow tube 31 passes through the fiber filter disc 32 and is then locked together with screws. The first connecting hole and the second connecting hole are connected, and the wastewater filtered by the fiber filter disc 32 flows from the second hole into the first hole. A suction pump is provided at the end of the hollow tube 31 to remove the wastewater inside the hollow tube 31.

[0040] Preferably, a backwash pump is also connected to the hollow pipe 31, which can inject water into the hollow pipe 31. The backwash pump is connected to the hollow pipe 31 through a pipe, and the backwash pump can generate a backwashing effect to further improve the cleaning effect.

[0041] In summary, the key design feature of this utility model is that each suction branch pipe 47 is equipped with an electrically controlled valve, which can select to open or close different cleaning heads as needed. This design allows for simultaneous cleaning and filtration of sewage without affecting the sewage treatment progress, while also increasing the suction capacity of the cleaning heads.

[0042] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A fibrous disc filter apparatus, characterised in that: The sewage treatment device comprises a reaction bin and a filter bin; the filter bin is arranged beside the reaction bin, sewage in the reaction bin can flow into the filter bin; a first liquid level sensor is arranged in the filter bin; The filter bin is provided with a filtering device and a cleaning device; The filtering device comprises a hollow pipe and a fiber filter disc arranged on the hollow pipe; the fiber filter disc has a hollow structure connected with the hollow pipe; The cleaning device comprises a motor, a cleaning suction head and a first sewage suction pump; the output end of the motor is connected with the hollow pipe, and the motor drives the hollow pipe to rotate; the cleaning suction head is arranged on both sides of the fiber filter disc; the first sewage suction pump is connected with a sewage suction main pipe, the sewage suction main pipe is provided with sewage suction branch pipes, and the sewage suction branch pipes are provided with control valves and the cleaning suction head.

2. A fiber disc filter apparatus according to claim 1, wherein: The top of the reaction bin is provided with an ear; the right side of the reaction bin is provided with a water inlet, and the left side of the reaction bin is provided with a water outlet; the height of the water inlet is higher than that of the water outlet.

3. A fiber disc filter apparatus according to claim 1, wherein: The motor is arranged at the top of the filter bin, the output end of the motor is connected with the input end of a speed reducer, and a belt or a chain is arranged between the output end of the speed reducer and the hollow pipe.

4. A fiber disc filter apparatus according to claim 1, wherein: Some of the sewage suction branch pipes are provided with sewage suction hoses connected with the cleaning suction head from bottom to top; some of the sewage suction branch pipes are provided with sewage suction pipes arranged on the inner bottom wall of the filter bin.

5. A fiber disc filter apparatus according to claim 1, wherein: The filter bin is provided with a hanger, and the elastic frame on the cleaning suction head is arranged on the hanger.

6. A fiber disc filter apparatus according to claim 1, wherein: The cleaning suction head comprises a shell and brush hairs arranged on the edge of the shell; the shell is provided with a sewage suction port for sucking dirt on the fiber filter disc.

7. A fibre disc filter apparatus according to claim 1 or 6, characterised in that: The cleaning suction head is further connected with an air pipe for conveying air to the air holes of the cleaning suction head.

8. A fiber disc filter apparatus according to claim 1, wherein: The reaction bin and the filter bin are stainless steel boxes provided with protective inner liners on the inner walls.

9. A fiber disc filter apparatus according to claim 1 wherein: The filter bin is provided with a mounting bracket, and the hollow pipe is rotatably arranged on the mounting bracket; the hollow pipe is provided with a first connecting hole, and the fiber filter disc is provided with a second connecting hole; the hollow pipe is arranged in the fiber filter disc, and the first connecting hole and the second connecting hole are communicated.

10. A fiber disc filter apparatus according to claim 1, wherein: The hollow pipe is further connected with a backwashing pump for injecting water into the hollow pipe.

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