A continuous automatic fiber ball filtering device

Abstract

This utility model discloses a continuous automatic fiber ball filter device, belonging to the field of wastewater treatment technology. It includes a filter body, a fiber ball filter assembly disposed within the filter body, and a connecting pipeline assembly connected to the filter body. During filtration, the water to be filtered effectively removes suspended solids, colloids, organic matter, and other impurities through the interception, adsorption, and bridging effects of the fiber ball filter media. Furthermore, the gap between the fiber ball filter media can be flexibly adjusted using a hydraulically driven extrusion screen. On one hand, the compressed state traps smaller particle sizes of impurities, while the loose state facilitates backwashing, adapting to different water quality requirements. On the other hand, the backwash water flow causes the fiber ball filter media to expand and loosen. The position of the extrusion screen can be adjusted via the hydraulic cylinder to prevent excessive expansion and damage to the fiber ball filter media, while also ensuring good backwashing effect and avoiding impurity residue.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a continuous automatic fiber ball filter device. Background Technology

[0002] In the field of water treatment, fiber ball filters, with their advantages of large specific surface area, strong interception capacity, and high filtration rate, have been widely used in municipal water supply, industrial wastewater treatment, and other scenarios. Compared with traditional quartz sand filters, they can remove 80%-95% of fine suspended particles of 1-5μm, and the filtration rate is increased to 10-30m / h, significantly saving equipment floor space.

[0003] Since its initial development by Unichka Corporation of Japan in 1982, fiber ball filter media has undergone continuous development and improvement. China created its own unique fiber ball filter media in 1983, followed by improved filter media such as comet-shaped fiber filter media. However, existing fiber ball filtration devices still reveal many technical bottlenecks during long-term operation.

[0004] Traditional filter media devices have a fixed filter layer structure, and the gaps between the filter media cannot be dynamically adjusted, making it difficult to adapt to fluctuations in the influent water quality. For example, when the influent water quality is poor and the suspended solids content is high, the fixed gaps between the filter media may lead to low filtration efficiency or even blockage. Moreover, existing devices lack real-time detection and circulation filtration mechanisms for the effluent, resulting in the direct discharge of some substandard water, which affects the treatment effect. In addition, traditional fiber ball filter devices also have the problem of poor backwashing effect. For example, the fibers near the center of the fiber ball are dense and cannot be loosened during backwashing, making it difficult to completely remove the trapped dirt. Utility Model Content

[0005] To address the aforementioned problems, this utility model discloses a continuous automatic fiber ball filtration device.

[0006] The technical solution of this utility model is: a continuous automatic fiber ball filter device, including a filter body, a fiber ball filter assembly disposed in the filter body, and a connecting pipeline assembly connected to the filter body; The fiber ball filter assembly includes several plug-in columns connected to the top of the filter body, a holding tray with a mesh structure at the bottom that is connected to each plug-in column by a connecting crossbar, an extrusion mesh plate that is movably connected to the center of the holding tray by a hydraulic cylinder, and fiber ball filter material filled between the holding tray and the extrusion mesh plate. The extrusion mesh plate can slide up and down along the inner wall of the holding tray. The connecting pipeline assembly includes an inlet pipe connected to the upper section of the filter body and an outlet pipe connected to the bottom of the filter body with a water quality detector at the connection point. The outlet pipe and the inlet pipe are connected by a first circulation branch pipe with a water pump at the connection point.

[0007] Furthermore, the filter body includes an intermediate cylinder, an upper cover and a lower cover that are movably installed at the upper and lower ends of the intermediate cylinder, and several insertion vertical cylinders are evenly arranged along the circumference of the inner wall of the intermediate cylinder. Each insertion vertical cylinder has a vertical notch on its side wall. The upper end of the insertion post is connected to the upper cover, and the bottom end of the insertion post is inserted into the insertion vertical cylinder one by one.

[0008] Description: The upper and lower covers are designed to be movably connected to the intermediate cylinder, enabling quick opening of the filter body without disassembling the entire device. Simply separating the upper or lower cover allows direct access to the fiber ball filter assembly and internal piping, significantly reducing maintenance difficulty and improving the device's operational efficiency. The one-to-one plug-in structure of the vertical cylinder and the plug-in column provides stable installation positioning and force support for the fiber ball filter assembly. During maintenance, simply opening the upper cover allows the plug-in column to be pulled out from the vertical cylinder, enabling the complete removal of the filter assembly, making operation convenient.

[0009] Furthermore, a liquid distribution plate is provided at the top of the interior of the filter body, and the liquid distribution plate is connected to the water inlet pipe.

[0010] Explanation: The water to be filtered, delivered by the inlet pipe, is evenly sprayed onto the fiber ball filter assembly via the distribution plate, ensuring that each part of the fiber ball filter media can fully contact the water flow, maximizing the adsorption area of ​​the fiber ball filter media, improving filtration accuracy and throughput. At the same time, the uniform water flow can also reduce impact wear on the fiber ball filter media.

[0011] Furthermore, a water storage tank is connected to the water outlet pipe, and the water storage tank is connected to the bottom of the filter body through a second circulation branch pipe, and the water storage tank is connected to the first circulation branch pipe.

[0012] Note: The water storage tank can temporarily store the qualified water delivered by the outlet pipe, balance the water flow and pressure, and provide a stable water source for subsequent equipment. When the device performs backwashing, the water in the storage tank is injected into the bottom of the filter body through the second circulation branch pipe, forming a "two-way flushing" with the backwash water flow of the first circulation branch pipe and the inlet pipe at the top. This enhances the flushing effect on the fiber ball filter media, more thoroughly removes the impurities adsorbed by the filter media, and improves the backwashing efficiency.

[0013] Furthermore, the upper part of the outer wall of the holding tray is provided with several overflow holes, and the mesh size at the bottom of the holding tray is smaller than the mesh size of the extrusion mesh plate.

[0014] Note: During the filtration process, if the fiber ball filter media becomes clogged due to excessive adsorption of impurities, the permeation rate of the filtered water in the collection tray will slow down, and the water level will gradually rise. The overflow holes serve two purposes: First, they are a safety design to prevent excessive water level and pressure in the collection tray, avoiding deformation of the tray or damage to the filter media due to excessive compression. Second, during backwashing, the fiber ball filter media gradually expands to a certain height in the continuously rising water flow. Simultaneously, the suspended solids adsorbed on the fiber ball filter media detach and flow down through the overflow holes with the backwash water, providing a smooth discharge channel for the backwash water and allowing the fiber ball filter media to more thoroughly restore its filtration performance. The function of the extrusion screen is to slide up and down under the drive of a hydraulic cylinder to compress or loosen the fiber ball filter media. When compressed, it can reduce the gap between the filter media and improve the filtration accuracy. When loosened, it facilitates the backwashing and discharge of impurities. Its mesh size design must meet the requirement of "allowing water flow and impurities to pass through, but blocking the fiber ball filter media" to prevent the filter media from being lost from the extrusion screen. The bottom of the holding tray is the main outlet of the filtered water, and the filtration effect needs to be further improved. Its mesh size is designed to be smaller than that of the extrusion screen. On the basis of the filter media filtration, it can block some small impurities again, further improving the quality of the effluent water. At the same time, the smaller mesh can also form a secondary limit for the fiber ball filter media, preventing the filter media from being lost from the bottom of the holding tray under the impact of water flow, and ensuring the stability of the total amount of filter media.

[0015] The beneficial effects of this utility model are: This invention relates to a continuous automatic fiber ball filter device. During filtration, the water to be filtered passes through the fiber ball filter media from top to bottom. The fiber ball filter media effectively removes suspended solids, colloids, organic matter, and other impurities from the water through interception, adsorption, and bridging. Furthermore, the gap between the fiber ball filter media can be flexibly adjusted using a hydraulically driven extrusion screen. On one hand, the compressed state traps smaller particle sizes of impurities, while the loose state facilitates backwashing, adapting to different water quality requirements. On the other hand, the backwash water flow causes the fiber ball filter media to expand and loosen, so the position of the extrusion screen can be adjusted via the hydraulic cylinder to prevent excessive expansion and damage to the fiber ball filter media, while also ensuring good backwashing effect and avoiding impurity residue. A water quality detector is installed in the outlet pipe. Water that does not meet the standards is automatically returned to the inlet pipe for re-filtration via a water pump, improving the effluent qualification rate. During backwashing, water impacts the filter media from both ends simultaneously, causing the filter media to fully expand and rub, significantly improving the impurity removal rate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the fiber ball filter assembly of this utility model installed inside the filter body; Figure 3 This is an external structural diagram of the fiber ball filter assembly of this utility model installed inside the filter body; Figure 4 This is a top view of the container tray of this utility model installed inside the middle cylinder.

[0017] Among them, 1-filter body, 10-intermediate cylinder, 11-upper cover, 12-lower cover, 13-insertion vertical cylinder, 14-distribution tray, 130-vertical notch, 2-fiber ball filter assembly, 20-insertion column, 21-receiving tray, 210-connecting horizontal column, 211-overflow hole, 22-extrusion mesh plate, 220-hydraulic cylinder, 23-fiber ball filter media, 3-connecting pipeline assembly, 30-inlet pipe, 31-outlet pipe, 310-water quality tester, 32-first circulation branch pipe, 33-water pump, 34-water storage tank, 340-second circulation branch pipe. Detailed Implementation

[0018] Example 1: As Figure 1 As shown, a continuous automatic fiber ball filter device includes a filter body 1, a fiber ball filter assembly 2 disposed in the filter body 1, and a connecting pipeline assembly 3 connected to the filter body 1. like Figure 2 , 3 As shown, the fiber ball filter assembly 2 includes eight plug-in posts 20 connected to the top of the filter body 1 at the top, a receiving tray 21 with a mesh structure at the bottom and connected to each plug-in post 20 by a connecting cross post 210, an extrusion mesh plate 22 connected to the center bearing of the receiving tray 21 by a hydraulic cylinder 220, and fiber ball filter media 23 filled between the receiving tray 21 and the extrusion mesh plate 22. The extrusion mesh plate 22 can slide up and down along the inner wall of the receiving tray 21. The hydraulic cylinder 220 and the fiber ball filter media 23 adopt existing technologies. For example, the hydraulic cylinder 220 can be an HSG type hydraulic cylinder, and the fiber ball filter media 23 can be an xl-FB-1A type fiber ball filter media. The connecting pipeline assembly 3 includes an inlet pipe 30 connected to the upper section of the filter body 1 and an outlet pipe 31 connected to the bottom of the filter body 1 with a water quality analyzer 310 installed at the connection. The outlet pipe 31 and the inlet pipe 30 are connected by a first circulation branch pipe 32 with a water pump 33 installed at the connection. One-way valves are installed on the outlet pipe 31 and the first circulation branch pipe 32. The water quality analyzer 310, the water pump 33 and the one-way valve all adopt existing technologies. For example, the water quality analyzer 310 can be an LH-C500 multi-parameter water quality analyzer, the water pump 33 can be a GD80-14 type cooling circulation pump, and the one-way valve can be an HD-S type one-way valve. like Figure 1 , 4As shown, the filter body 1 includes an intermediate cylinder 10, an upper cover 11 and a lower cover 12 respectively movably installed at the upper and lower ends of the intermediate cylinder 10. Eight vertical insertable cylinders 13 are evenly arranged circumferentially on the inner wall of the intermediate cylinder 10. Each vertical insertable cylinder 13 has a vertical notch 130 on its side wall. The upper end of the insertable post 20 is connected to the upper cover 11, and the bottom end of the insertable post 20 is inserted into the vertical insertable cylinder 13 one-to-one. The upper cover 11 and the lower cover 12 are detachable from the intermediate cylinder 10 using a snap-fit ​​or flange-type method, respectively. The upper cover 11 and the lower cover 12 are designed to be detachable from the intermediate cylinder 10. The zero-connection design allows for quick opening of the filter body 1 without disassembling the entire device. Simply separate the upper cover 11 or the lower cover 12 to directly access the fiber ball filter assembly 2 and internal piping, significantly reducing maintenance difficulty and improving the device's operational efficiency. The one-to-one insertion structure between the vertical cylinder 13 and the insertion post 20 provides stable installation positioning and force support for the fiber ball filter assembly 2. During maintenance, simply open the upper cover 11 to pull the insertion post 20 out of the vertical cylinder 13, allowing for the complete removal of the filter assembly, making the operation convenient. The filter body 1 has a liquid distribution plate 14 at the top inside. The liquid distribution plate 14 is connected to the water inlet pipe 30. The water to be filtered is evenly sprayed onto the fiber ball filter assembly 2 through the liquid distribution plate 14, ensuring that each part of the fiber ball filter media 23 can fully contact the water flow, maximizing the adsorption area of ​​the fiber ball filter media 23, improving the filtration accuracy and processing capacity. At the same time, the uniform water flow can also reduce the impact and wear on the fiber ball filter media 23. A water storage tank 34 is connected to the outlet pipe 31. The water storage tank 34 is connected to the bottom of the filter body 1 through the second circulation branch pipe 340. The water storage tank 34 is connected to the first circulation branch pipe 32. The water storage tank 34 can temporarily store the qualified water transported by the outlet pipe 31, balance the water flow and pressure, and provide a stable water source for subsequent equipment. When the device performs backwashing operation, the water in the water storage tank 34 is injected into the bottom of the filter body 1 through the second circulation branch pipe 340. This forms a "two-way flushing" with the backwash water flow of the first circulation branch pipe 32 and the inlet pipe 30, which enhances the flushing effect on the fiber ball filter media 23, removes the impurities adsorbed by the filter media more thoroughly, and improves the backwashing efficiency. The second circulation branch pipe 340 is equipped with a one-way valve. like Figure 3As shown, the upper part of the outer wall of the holding tray 21 is provided with 12 overflow holes 211. The mesh size at the bottom of the holding tray 21 is 1 / 3 of the mesh size of the extruded mesh plate 22. During the filtration process, if the fiber ball filter media 23 becomes clogged due to excessive adsorption of impurities, the permeation rate of the filtered water in the holding tray 21 will slow down, and the water level will gradually rise. The overflow holes 211 serve two purposes: first, as a safety design to prevent "excessive water level and excessive pressure" in the holding tray 21, avoiding excessive pressure caused by excessive water level, preventing deformation of the holding tray or damage to the filter media by excessive compression; second, during backwashing, the fiber ball filter media 23 gradually expands to a certain height in a continuously rising water flow of a certain intensity. At the same time, the suspended matter adsorbed on the fiber ball filter media 23 falls off and flows down with the backwash water through each overflow hole 211, providing a smooth flow for the backwash water. The unobstructed discharge channel allows the fiber ball filter media 23 to more thoroughly restore its filtration performance. The function of the extrusion screen 22 is to slide up and down under the drive of the hydraulic cylinder 220 to compress or loosen the fiber ball filter media 23. When compressed, it can reduce the gap between the filter media and improve the filtration accuracy. When loosened, it is convenient for backwashing and impurity discharge. Its mesh size design needs to meet the requirement of "allowing water flow and impurities to pass through, but blocking the fiber ball filter media 23", to prevent the filter media from being lost from the extrusion screen 22. The bottom of the holding tray 21 is the main outlet of the filtered water, and the filtration effect needs to be further improved. Its mesh size is designed to be smaller than that of the extrusion screen 22. On the basis of the filter media filtration, it can block some small impurities again, further improving the quality of the effluent water. At the same time, the smaller mesh can also form a secondary limit on the fiber ball filter media 23, preventing the filter media from being lost from the bottom of the holding tray 21 under the impact of water flow, and ensuring the stability of the total amount of filter media.

[0019] The method of using the continuous automatic fiber ball filter device of this utility model includes the following steps: S1, Wastewater Filtration S1-1. The water to be filtered is transported through the inlet pipe 30 to the liquid distribution plate 14 at the top of the filter body 1. The liquid distribution plate 14 sprays the water evenly onto the fiber ball filter assembly 2, so that each part of the fiber ball filter material 23 can fully contact the water flow and maximize the adsorption area of ​​the fiber ball filter material 23. S1-2. The water to be filtered passes through the fiber ball filter media 23 from top to bottom. The fiber ball filter media 23 effectively removes suspended solids, colloids, organic matter and other impurities from the water to be filtered through interception, adsorption and bridging. S1-3. The extrusion screen 22 can slide up and down along the inner wall of the holding tray 21 under the drive of the hydraulic cylinder 220. When it is necessary to improve the filtration accuracy, the hydraulic cylinder 220 drives the extrusion screen 22 to slide down, compress the fiber ball filter media 23, reduce the gap of the fiber ball filter media 23, and thus intercept impurities with smaller particle size. S1-4. After the filtered water discharged from the outlet pipe 31 is tested by the water quality tester 310, if it meets the test requirements (i.e., turbidity ≤ 0.5 NTU), it is temporarily stored in the water storage tank 34. If the water quality does not meet the standards, it is pumped back into the filter body 1 through the water pump 33 and the inlet pipe 30 for repeated filtration. S2, Backwashing process S2-1. When the running time reaches the set cycle of 5 days, the impurities adsorbed by the fiber ball filter media 23 reach saturation, and the backwashing program is started. At this time, the water pump 33 works and pumps the water in the water storage tank 34 back to the water inlet pipe 30 through the first circulation branch pipe 32. At the same time, the water in the water storage tank 34 is injected into the filter body 1 from the bottom through the second circulation branch pipe 340, forming a "two-way flushing" with the backwash water flow of the first circulation branch pipe 32 and the water inlet pipe 30 at the top. S2-2. The backwash water flow causes the fiber ball filter media 23 to expand, loosen, and rub against each other, thereby washing away the impurities attached to the surface and pores of the fiber balls. The impurities are then washed off with the backwash water through the overflow hole 211 at the upper end of the outer wall of the holding tray 21, and discharged into the water storage tank 34 through the water outlet pipe 31 for subsequent treatment. Replacement of S3 and fiber ball filter media 23 When the fiber ball filter media 23 needs to be replaced, the upper cover 11 and the middle cylinder 10 are disassembled, and the holding tray 21 is pulled upwards. This will drive each insertion post 20 to be pulled out from the corresponding insertion vertical cylinder 13, so that the entire fiber ball filter assembly 2 can be removed. Then, the extrusion mesh plate 22 and the hydraulic cylinder 220 are disassembled, so that the fiber ball filter media 23 can be replaced.

Claims

1. A continuous automatic fiber ball filter device, characterized in that, It includes a filter body (1), a fiber ball filter assembly (2) disposed in the filter body (1), and a connecting pipe assembly (3) connected to the filter body (1). The fiber ball filter assembly (2) includes several plug-in posts (20) connected to the top of the filter body (1) at the top, a holding tray (21) with a mesh structure at the bottom and connected to each plug-in post (20) one by one by a connecting cross post (210), an extrusion mesh plate (22) movably connected to the center of the holding tray (21) by a hydraulic cylinder (220), and fiber ball filter material (23) filled between the holding tray (21) and the extrusion mesh plate (22). The extrusion mesh plate (22) can slide up and down along the inner wall of the holding tray (21). The connecting pipeline assembly (3) includes an inlet pipe (30) connected to the upper section of the filter body (1) and an outlet pipe (31) connected to the bottom end of the filter body (1) with a water quality detector (310) provided at the connection. The outlet pipe (31) and the inlet pipe (30) are connected by a first circulation branch pipe (32) and a water pump (33) is provided at the connection.

2. The continuous automatic fiber ball filter device according to claim 1, characterized in that, The filter body (1) includes an intermediate cylinder (10), an upper cover (11) and a lower cover (12) which are movably installed at the upper and lower ends of the intermediate cylinder (10). The inner wall of the intermediate cylinder (10) is evenly provided with several plug-in vertical cylinders (13) along the circumference. Each plug-in vertical cylinder (13) has a vertical notch (130) on its side wall. The upper end of the plug-in column (20) is connected to the upper cover (11), and the bottom end of the plug-in column (20) is plugged into the plug-in vertical cylinder (13) one by one.

3. The continuous automatic fiber ball filter device according to claim 1, characterized in that, The filter body (1) has a liquid distribution plate (14) at its top inside, and the liquid distribution plate (14) is connected to the water inlet pipe (30).

4. The continuous automatic fiber ball filter device according to claim 1, wherein A water storage tank (34) is connected to the water outlet pipe (31). The water storage tank (34) is connected to the bottom end of the filter body (1) through the second circulation branch pipe (340). The water storage tank (34) is connected to the first circulation branch pipe (32).

5. The continuous automatic fiber ball filter device according to claim 1, wherein The upper part of the outer wall of the holding tray (21) is provided with several overflow holes (211), and the mesh size at the bottom of the holding tray (21) is smaller than the mesh size of the extruded mesh plate (22).

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