A new type of fiber bundle filter

Abstract

The utility model discloses a novel fiber bundle filter, including jar body, the top of jar body is provided with the water inlet, is provided with the water outlet at the bottom, the lower part of side face is provided with the backflush water inlet, the upper part of side face is provided with the backflush water outlet, and the bottom surface is welded with a plurality of support legs, the inside installation of jar body has the filter equipment, and the lifting device of pull -and -hold filter equipment is installed in the top center, and the motor is installed at the bottom, and the motor drive center rod rotates, and the center rod drives filter equipment and rotates along the jar body center, a plurality of telescopic shafts are installed in the filter equipment, and the backflush gas feeding device is installed on the jar body below filter equipment. The utility model makes the synchronous rotation of fiber bundle, can break the adhesion between fiber and impurity, increases the water flow shear force, makes the agglomerate pollutant more easily fall off, and dynamic rotation enhances the turbulence intensity, reduces the dead area and short flow phenomenon, and cooperates with the branch pipe and releases the micro -bubble and carries out the air scrubbing and washes, and is more easy to peel off the pollutant.

Description

Technical Field

[0001] This utility model relates to the field of water treatment equipment technology, and in particular to a novel fiber bundle filter. Background Technology

[0002] Fiber bundle filters are high-efficiency water treatment devices. As water flows downwards through the fiber bundle layer, the fibers naturally loosen due to gravity, forming a three-dimensional mesh structure. Suspended solids are trapped by the micropores between the fibers; the deep filtration mechanism combined with physical adsorption effectively removes tiny particles. Reverse water flow causes the fiber bundles to contract and compact, increasing the shear force of the water flow and stripping away the trapped impurities. Widely used in wastewater treatment, industrial circulating water purification, and drinking water pretreatment, they are suitable for high-turbidity water treatment scenarios and offer advantages such as energy saving, high efficiency, and easy maintenance.

[0003] In existing technologies, during the backwashing stage, when high-speed water flows in the opposite direction to flush the fiber bundle, the fiber bundle itself lacks rotational freedom and can only rely on the shear force of the water flow to remove surface pollutants. As a result, the fiber bundle cannot generate relative motion, making it difficult for deeply adsorbed particles to detach, leading to localized clogging and a shortened filtration cycle. To ensure the cleaning effect, it is often necessary to extend the backwashing time or increase the backwashing intensity, resulting in a waste of water resources. Utility Model Content

[0004] The purpose of this invention is to provide a novel fiber bundle filter that solves the problems in the prior art where the fiber bundles cannot generate relative motion, making it difficult for deeply adsorbed particles to be removed, resulting in increased local clogging, shortened filtration cycles, and the need to consume more water to ensure cleaning effectiveness.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A novel fiber bundle filter includes a tank with an inlet at the top, an outlet at the bottom, a backwash inlet at the lower side, and a backwash outlet at the upper side. Multiple support legs are welded to the bottom. A filter device is installed inside the tank. A lifting device for pulling the filter device is installed at the top center, and a motor is installed at the bottom. The motor drives a central rod to rotate, which in turn rotates the filter device around the center of the tank. Multiple telescopic shafts are installed inside the filter device. A backwash air supply device is installed on the tank below the filter device. The filter device includes a base plate, bearings, a movable plate, and fiber bundles. The base plate is open to... The bearing is press-fitted with the inner wall of the tank, and the bottom plate is located above the backwash inlet. A movable plate is provided above the bottom plate. Through holes are distributed on the movable plate and the bottom plate, and fiber bundles are connected between the upper and lower through holes. Multiple telescopic shafts are circumferentially distributed between the movable plate and the bottom plate, and their top and bottom ends are fixed to the movable plate and the bottom plate, respectively. The top end of the central rod is fixed to the center of the bottom plate. The lifting device includes a cylinder, a bushing, and a lifting shaft. The cylinder is vertically fixed to the center of the top of the tank. The bushing is fixedly installed at the output end of the cylinder. The bottom of the lifting shaft is fixed to the center of the movable plate, and its top is coaxially installed with the bushing. The central rod and the lifting shaft are located on the central axis of the tank.

[0007] Preferably, the motor is fixedly installed to the center bolt at the bottom of the tank, and the motor is coaxially connected to the center rod.

[0008] Preferably, a reciprocating swing mechanism is installed between the motor and the central rod. The reciprocating swing mechanism includes a swing rod, a slide groove, a rotating rod, and a sliding shaft. The swing rod is horizontal, with one end fixed vertically to the central rod and the other end having a slide groove in the same direction as the swing rod. The rotating rod is parallel to the swing rod, with one end fixed vertically to the motor shaft and the other end fixed vertically to the sliding shaft. The sliding shaft is slidably connected along the slide groove. The bottom of the motor is supported by a motor base, and the motor base is fixed to the support leg.

[0009] Preferably, a sludge scraping device is installed at the movable plate. The sludge scraping device includes a groove, an upper scraper, a connecting rod, a ring, and a lower scraper. A groove is formed on the outer circumference of the movable plate. The upper scraper is ring-shaped and fits into the groove. Multiple connecting rods are fixed to the bottom circumference of the movable plate directly below the upper scraper. A ring is fixed to the bottom of the connecting rod. A lower scraper is fixed to the outer side of the ring. The outer sides of the upper and lower scrapers are in contact with the inner wall of the tank.

[0010] Preferably, the backwashing air supply device includes a main air supply pipe, a branch pipe, an air outlet pipe, and an air outlet. The main air supply pipe is located outside the tank body, and two air outlet pipes are connected to it through the branch pipe. The two air outlet pipes are horizontally fixed inside the tank body and located below the bottom plate. Air outlets are distributed on the air outlet pipes.

[0011] Preferably, a vent pipe is installed on the top of the tank.

[0012] The advantages of this utility model compared with the prior art are as follows:

[0013] 1. The stroke distance of the cylinder can adjust the density of the fiber bundle compaction and the filtration intensity of the raw water. During backwashing, the cylinder can lift the movable plate to loosen the fiber bundle and facilitate the removal of dirt. The rotating center rod of the motor drives the bottom plate to rotate. The bottom plate rotates synchronously with the movable plate and the fiber bundle through the telescopic rod. This can break the adhesion between the fiber and the impurities, increase the shear force of the water flow, and make it easier for the agglomerated pollutants to fall off. The dynamic rotation enhances the turbulence intensity, reduces dead zones and short-circuiting phenomena. Combined with the even release of microbubbles in the branch pipe for air scrubbing, it is easier to remove pollutants, shorten the filtration cycle, and reduce the waste of water resources.

[0014] 2. The reciprocating swing mechanism driven by the motor makes the filter device rotate back and forth at a small angle, causing the fiber bundle to shake. This can release the fiber from entanglement or compaction, restore its elasticity and three-dimensional structure, maintain high porosity, extend the service life of the filter media, accelerate the removal speed of pollutants, reduce the backwash water pressure or time requirements, and reduce energy consumption through physical synergy.

[0015] 3. When the cylinder lifts the movable plate, it drives the upper and lower scrapers to move synchronously. The upper scraper removes the scum from the top surface of the tank wall of the movable plate, and the lower scraper removes the deposited sludge between the movable plate and the bottom plate, preventing scale buildup on the tank wall. Compared with traditional manual cleaning methods, this extends the maintenance cycle and reduces operation and maintenance costs. Attached Figure Description

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

[0017] Figure 2 This is a front view of Embodiment 1 of this utility model;

[0018] Figure 3 This is a schematic diagram of the raw water forward filtration in Embodiment 1 of this utility model;

[0019] Figure 4 This is a schematic diagram of fiber bundle backwashing in Embodiment 1 of this utility model;

[0020] Figure 5 This is a schematic diagram of the position of the reciprocating swing mechanism in Embodiment 2 of this utility model;

[0021] Figure 6 This is a schematic diagram of the reciprocating swing mechanism structure of Embodiment 2 of this utility model;

[0022] Figure 7 This is a schematic diagram of the position of the sludge scraping device in Embodiment 3 of this utility model;

[0023] Figure 8 This is Embodiment 3 of the present utility model. Figure 7 Enlarged view of A in the middle;

[0024] Icons: 1. Tank; 101. Inlet; 102. Outlet; 103. Backwash Inlet; 104. Backwash Outlet; 105. Support Leg; 106. Vent Pipe; 2. Filter Device; 201. Base Plate; 202. Bearing; 203. Movable Plate; 204. Fiber Bundle; 3. Lifting Device; 301. Cylinder; 302. Bushing; 303. Lifting Shaft; 4. Motor; 401. Motor 5. Base; 6. Center rod; 7. Telescopic shaft; 8. Backwash air supply device; 9. Main air supply pipe; 10. Branch pipe; 11. Air outlet pipe; 12. Air outlet; 13. Reciprocating swing mechanism; 14. Swing rod; 15. Slide groove; 16. Rotating rod; 17. Slide shaft; 18. Sludge scraping device; 19. Groove; 20. Upper scraper; 31. Connecting rod; 42. Ring; 53. Lower scraper. Detailed Implementation

[0025] To make the objectives, methods, and advantages of the embodiments of this utility model clearer, the method solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0026] Example 1

[0027] like Figure 1-4As shown, a novel fiber bundle filter includes a tank 1. The tank 1 has an inlet 101 at the top, connected to an external raw water pipe flange; an outlet 102 at the bottom, connected to an external clean water pipe flange; a backwash inlet 103 on the lower side, connected to an external backwash inlet pipe flange; and a backwash outlet 104 on the upper side, connected to an external sewage pipe flange. The inlet 101, outlet 102, backwash inlet 103, and backwash outlet 104 are controlled by solenoid valves, which are opened and closed by a PLC program in an external distribution box. Multiple support legs 105 are welded to the bottom of the tank 1 for ground support. A vent pipe 106 is installed at the top of the tank 1. The system balances the air pressure inside and outside the tank 1 to prevent air resistance or negative pressure from affecting the water flow. A filter device 2 is installed inside the tank 1. A lifting device 3 for lifting the filter device 2 is installed at the top center. A motor 4 is installed at the bottom. The motor 4 is fixedly installed to the bottom center of the tank 1 with bolts. The start, stop and speed are controlled by the PLC program of the external power distribution box. The motor 4 is coaxially connected to the bottom of the center rod 5 through a coupling. The motor 4 drives the center rod 5 to rotate. The center rod 5 is located at the center of the tank 1 and drives the filter device 3 to rotate around the center of the tank 1. Multiple telescopic shafts 6 are installed inside the filter device 2. The telescopic shafts 6 are connected by sliding along the sleeve. A backwashing air supply device 7 is installed on the tank 1 below the filter device 2.

[0028] The filtration device 2 includes a base plate 201, a bearing 202, a movable plate 203, and fiber bundles 204. The base plate 201 is press-fitted to the inner wall of the tank 1 via the bearing 202, and the base plate 201 is located above the backwash inlet 103. The top of the central rod 5 is fixed to the center of the base plate 201. The movable plate 203 is provided above the base plate 201. Through holes are distributed on the movable plate 203 and the base plate 201, and fiber bundles 204 are connected between the upper and lower through holes. Multiple telescopic shafts 6 are circumferentially distributed between the movable plate 203 and the base plate 201, and their top and bottom ends are welded and fixed to the movable plate 203 and the base plate 201, respectively, so that the base plate 201 and the movable plate 203 can rotate synchronously to avoid the fiber bundles 204 from entanglement. The telescopic shafts 6 have at least three stages of telescopic extension to ensure that the movable plate 203 and the base plate 201 have a large telescopic space to meet the adjustable filtration density of the fiber bundles 204. The motor 4 drives the entire filter device 2 to rotate, causing the fiber bundle 204 to rotate synchronously. This breaks the adhesion between the fiber and impurities, increases the shear force of the water flow, and makes it easier for agglomerated pollutants to fall off. The dynamic rotation enhances the turbulence intensity and reduces dead zones and short-circuiting phenomena.

[0029] The lifting device 3 includes a cylinder 301, a bushing 302, and a lifting shaft 303. The cylinder 301 is vertically fixed to the center of the top of the tank 1 by bolts. The cylinder stroke of the cylinder 301 is controlled by a PLC program in an external power distribution box. The bushing 302 is fixedly installed at the output end of the cylinder 301. The bottom of the lifting shaft 303 is fixed to the center of the movable plate 203, and the top is coaxially installed with the bushing 302, allowing the lifting shaft 303 to rotate within the bushing 302. This ensures that the movable plate 203 can rotate together with the bottom plate 201 and can also be lifted and moved vertically by the cylinder 301. By changing the distance between the movable plate 203 and the bottom plate 201 using the cylinder 301, the tightness of the fiber bundle can be adjusted, controlling the size of the filter gaps. The compact structure can intercept even smaller particles.

[0030] The backwashing air supply device 7 includes a main air supply pipe 701, a branch pipe 702, an air outlet pipe 703, and an air outlet 704. The main air supply pipe 701 is located outside the tank body 1 and is supplied with air by an external air pump. The main air supply pipe 701 is connected to two air outlet pipes 703 through the branch pipe 702. The two air outlet pipes 703 are horizontally fixed inside the tank body 1 and located below the bottom plate 201. The air outlet pipes 703 are distributed with air outlets 704. The air outlets 704 uniformly release microbubbles to perform air scrubbing on the fiber bundles 204, making it easier to remove contaminants and enhancing the separation efficiency of the fiber bundles 204 from impurities.

[0031] In the specific implementation process, when filtering raw water: when the movable plate 203 is pressed down, the fiber bundles are compressed, filling the space between the movable plate 203 and the bottom plate 201, thus reducing the filter gaps and intercepting smaller particles. Raw water enters the tank 1 from the top inlet 101 and flows from top to bottom through the filter layer composed of fiber bundles 204. Impurities are intercepted by fiber bundles 204, and clean water flows out from the bottom outlet 102.

[0032] During backwashing: The cylinder 301 of the lifting device 3 lifts the movable plate 203 through the lifting shaft 303, changing the distance between it and the bottom plate 201. When the movable plate 203 rises, the fiber bundles 204 loosen, increasing the filtration flux. The motor 4 drives the central rod 5 to rotate the filter device 2 as a whole. The fiber bundles 204 rotate synchronously with the bottom plate 201. The inlet 101 and outlet 102 are closed, and the backwash inlet 103 and backwash outlet 104 are opened. The backwash water impacts the fiber bundles from the bottom upwards. The backwash air supply device 7 releases uniform microbubbles through the air outlet 704. When the bubbles rise, they rub against the fiber bundles. Combined with the bubble scrubbing and rotational shearing force, the clumps of impurities are thoroughly removed. The wastewater is discharged from the backwash outlet 104.

[0033] Example 2

[0034] To induce a shaking phenomenon in the fiber bundles 204 during backwashing, thereby releasing the fibers from entanglement or compaction, restoring their elasticity and three-dimensional structure, maintaining high porosity, extending the filter media's service life, accelerating the removal of contaminants, and reducing the required backwash water pressure or duration, improvements are made based on Example 1, such as... Figure 5-6 As shown, in this embodiment, a reciprocating swing mechanism 8 is installed between the motor 4 and the central rod 5. The reciprocating swing mechanism 8 includes a swing rod 801, a sliding groove 802, a rotating rod 803, and a sliding shaft 804. The swing rod 801 is horizontal, with one end welded perpendicularly to the central rod 5, and the other end having a sliding groove 802 in the same direction as the swing rod 801. The rotating rod 803 is parallel to the swing rod 801, with one end vertically fixed to the rotating shaft of the motor 4 via a key, and the other end vertically welded to the sliding shaft 804. The sliding shaft 804 is slidably connected along the sliding groove 802. The bottom of the motor 4 is supported by a motor base 401, which is fixed to the support leg 105. This causes the fiber bundle 204 of the filter device 2 to reciprocate, creating a shaking motion. This changes the unidirectional rotation of the fiber bundle 204 during backwashing, accelerating the removal speed of pollutants, reducing the backwashing water pressure or time requirements, and reducing energy consumption through physical synergy.

[0035] In the specific implementation process, during the backwashing process, the motor 4 drives the rotating rod 803 to rotate, causing the sliding shaft 804 to slide along the sliding groove 802, resulting in the swing rod 801 forming a horizontal reciprocating swing phenomenon with the central rod 5 as the center. The central rod 5 causes the fiber bundle 204 of the filter device 2 to rotate reciprocally. Due to the limitation of the rotation angle, the fiber bundle 204 forms a horizontal shaking phenomenon.

[0036] Example 3

[0037] To facilitate the cleaning of scale on the inner wall of tank 1, extend the maintenance cycle, and reduce operation and maintenance costs, improvements were made to Example 2, such as... Figure 7-8 As shown, in this embodiment, a sludge scraping device 9 is installed at the movable plate 203. The sludge scraping device 9 includes a groove 901, an upper scraper 902, a connecting rod 903, a ring 904, and a lower scraper 905. A groove 901 is formed on the outer circumference of the movable plate 203. The upper scraper 902 is annular and fits into the groove 901. Multiple connecting rods 903 are welded to the circumference of the bottom surface of the movable plate 203 directly below the upper scraper 902. A ring 904 is fixed to the bottom of the connecting rod 903. A lower scraper 905, which is also annular, is clamped and fixed to the outside of the ring 904. The outer surfaces of the upper scraper 902 and the lower scraper 905 are in contact with the inner wall of the tank 1. So that when the upper scraper 902 and the lower scraper 905 move vertically, the upper scraper 902 removes the scum on the top surface of the tank wall of the movable plate, and the lower scraper 905 scrapes off the deposited sludge between the movable plate 203 and the bottom plate 201, preventing scale buildup on the tank wall. Compared with the traditional manual cleaning method, the maintenance cycle is extended and the operation and maintenance costs are reduced.

[0038] In the specific implementation process, during backwashing, cylinder 301 lifts movable plate 203 through lifting shaft 303, so that upper scraper 902 and lower scraper 905 scrape off the mud and scale on the inner wall of tank 1. The detached scale flows out through backwash water and is discharged from backwash outlet 104.

[0039] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A novel fiber bundle filter, comprising a tank (1), wherein the tank (1) is provided with an inlet (101) at the top, an outlet (102) at the bottom, a backwash inlet (103) at the lower side, a backwash outlet (104) at the upper side, and multiple support legs (105) welded to the bottom surface, characterized in that, The tank (1) is equipped with a filter device (2) inside. A lifting device (3) for lifting the filter device (2) is installed at the top center. A motor (4) is installed at the bottom. The motor (4) drives the central rod (5) to rotate. The central rod (5) drives the filter device (2) to rotate around the center of the tank (1). Multiple telescopic shafts (6) are installed inside the filter device (2). A backwashing air supply device (7) is installed on the tank (1) below the filter device (2). The filter device (2) includes a base plate (201), a bearing (202), a movable plate (203), and fiber bundles (204). The base plate (201) is press-fitted to the inner wall of the tank (1) via the bearing (202), and the base plate (201) is located above the backwash inlet (103). A movable plate (203) is provided above the base plate (201). Through holes are distributed on the movable plate (203) and the base plate (201), and fiber bundles (204) are connected between the upper and lower through holes. Multiple telescopic shafts (6) are circumferentially distributed between the movable plate (203) and the base plate (201), and their top and bottom ends are fixed to the movable plate (203) and the base plate (201) respectively. The top end of the central rod (5) is fixed to the center of the base plate (201). The lifting device (3) includes a cylinder (301), a bushing (302), and a lifting shaft (303). The cylinder (301) is vertically fixed to the center of the top of the tank (1). The bushing (302) is fixedly installed at the output end of the cylinder (301). The bottom of the lifting shaft (303) is fixed to the center of the movable plate (203), and the top is coaxially installed with the bushing (302). The central rod (5) and the lifting shaft (303) are located on the central axis of the tank body (1).

2. The novel fiber bundle filter according to claim 1, characterized in that, The motor (4) is fixedly installed at the bottom center of the tank (1) with bolts, and the motor (4) and the center rod (5) are coaxially connected by a coupling.

3. A novel fiber bundle filter according to claim 1, characterized in that, A reciprocating swing mechanism (8) is installed between the motor (4) and the central rod (5). The reciprocating swing mechanism (8) includes a swing rod (801), a slide groove (802), a rotating rod (803), and a sliding shaft (804). The swing rod (801) is horizontal, with one end fixed vertically to the center rod (5), and the other end having a slide groove (802) in the same direction as the swing rod (801). The rotating rod (803) is parallel to the swing rod (801), with one end fixed vertically to the rotating shaft of the motor (4), and the other end having a sliding shaft (804) fixed vertically. The sliding shaft (804) is slidably connected within the slide groove (802). The bottom of the motor (4) is supported by a motor base (401), and the motor base (401) is fixed to the support leg (105).

4. A novel fiber bundle filter according to claim 3, characterized in that, A mud scraper (9) is installed at the movable plate (203). The sludge scraping device (9) includes a groove (901), an upper scraper (902), a connecting rod (903), a ring (904), and a lower scraper (905). A groove (901) is formed on the outer side of the circumference of the movable plate (203). The upper scraper (902) is ring-shaped and fits into the groove (901). Multiple connecting rods (903) are fixed on the bottom circumference of the movable plate (203) directly below the upper scraper (902). A ring (904) is fixed at the bottom of the connecting rod (903). A lower scraper (905) is fixed on the outer side of the ring (904). The outer sides of the upper scraper (902) and the lower scraper (905) are in contact with the inner wall of the tank (1).

5. A novel fiber bundle filter according to claim 4, characterized in that, The backwashing air supply device (7) includes a main air supply pipe (701), a branch pipe (702), an air outlet pipe (703), and an air outlet (704). The main air supply pipe (701) is located outside the tank body (1), and two air outlet pipes (703) are connected through the branch pipe (702). The two air outlet pipes (703) are horizontally fixed inside the tank body (1) and located below the bottom plate (201). Air outlets (704) are distributed on the air outlet pipes (703).

6. A novel fiber bundle filter according to claim 1, characterized in that, A vent pipe (106) is installed on the top of the tank (1).

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