Fiber ball filtering device for sewage treatment

Abstract

The utility model discloses a fiber ball filtering device for sewage treatment, which comprises a tank body, the top surface of the tank body is open, a sewage pipe and a flushing pipe are arranged at the top of the tank body, and a blow-off pipe and a clear water pipe are arranged at the bottom of the tank body; the columnar net cage is coaxially arranged in the tank body, the net cage is in sealed connection with the inner circumferential surface of the tank body, and the top surface of the net cage is open; the net plate is horizontally arranged in the net cage, and a stirring rod is fixedly connected to the net plate; and the driving assembly is arranged on the tank body and is in transmission connection with the screen plate. The fiber balls are placed in the net cage, when sewage is normally filtered, the net plate descends to press the fiber balls, the fiber balls are prevented from being impacted by the sewage to move, and the purification effect is guaranteed; when the fiber balls are flushed, the screen plate ascends to enlarge the space for accommodating the fiber balls, and the screen plate drives the stirring rod to turn over the fiber balls, so that the flushing effect on the fiber balls is improved; the fiber balls are placed in the net cage, all the fiber balls can be taken and placed at a time through the net cage, and the replacement convenience of the fiber balls is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to sewage treatment technical field especially relates to a fiber ball filter device for sewage treatment. BACKGROUND

[0002] The fiber ball filter selects fiber ball as filter material, the filter material diameter can reach dozens of microns or even several microns, has the advantages such as large surface area, small filtration resistance, solves the problem that the filtration precision of granular filter material is limited by filter material particle size.

[0003] At present, fiber ball filter is widely used in sewage, surface water treatment. Although backwashing problem has been considered in the manufacture of fiber ball filter, but after long-term operation of fiber ball filter, pollutants, bacteria, algae will be firmly adhered to the surface of fiber ball in the filter, resulting in increased filtration resistance.

[0004] Therefore, it is necessary to improve the fiber ball filter device in the prior art. UTILITY MODEL CONTENT

[0005] The utility model discloses a fiber ball filter device for sewage treatment, which overcomes the defects in the prior art and improves the purification effect of the fiber ball filter device on sewage.

[0006] To achieve the above object, the specific technical scheme of the fiber ball filter device for sewage treatment of the utility model is as follows:

[0007] A fiber ball filter device for sewage treatment includes:

[0008] The tank body is provided with a sewage pipe and a flushing pipe at the top, and is provided with a sewage discharge pipe and a clean water pipe at the bottom;

[0009] The cylindrical net box is coaxially arranged in the tank body, and the net box is sealingly connected with the inner circumferential surface of the tank body, and the top surface of the net box is open;

[0010] The net plate is horizontally arranged in the net box, and the net plate and the net box form a cavity for accommodating fiber balls, and the net plate is fixedly connected with the stirring rod;

[0011] The driving assembly is arranged on the tank body, and the driving assembly is drivingly connected with the net plate for driving the net plate to lift and rotate.

[0012] Preferably, the driving assembly comprises a lifting seat arranged above the tank body, a hydraulic cylinder fixedly connected to the tank body, a lifting end of the hydraulic cylinder fixedly connected to the lifting seat, a reduction motor fixedly connected to the lifting seat, an output shaft of the reduction motor fixedly connected to a driving shaft, and the driving shaft coaxially arranged with the tank body and detachably connected with the net plate.

[0013] Preferably, the net plate is provided with a first through hole for the driving shaft to pass through, the driving shaft is coaxially fixedly connected with a limiting ring, and the net plate is connected with the limiting ring through bolts.

[0014] Preferably, the bottom surface of the net cage is provided with a second through hole for the driving shaft to pass through, a stirring member is arranged below the net cage, and the stirring member is detachably connected with the bottom end of the driving shaft.

[0015] Preferably, the stirring member comprises a threaded sleeve, the bottom end of the driving shaft has a threaded segment threadedly connected with the threaded sleeve, and a plurality of paddles are circumferentially and equidistantly arranged on the outer periphery of the threaded sleeve.

[0016] Preferably, the outer diameter of the threaded sleeve is greater than the hole diameter of the second through hole.

[0017] Preferably, the bottom of the tank body is in a conical structure, the blowdown pipe is arranged at the bottom of the conical structure, and the clean water pipe is arranged at the side surface of the conical structure.

[0018] Preferably, the top of the tank body has an expanded section, the inner diameter of the expanded section is greater than the inner diameter of the tank body, and the sewage pipe and the flushing pipe are both in communication with the expanded section.

[0019] Preferably, a pre-filter screen is horizontally arranged inside the expanded section, the pre-filter screen is sealingly connected with the inner peripheral surface of the expanded section, and the pre-filter screen is provided with a third through hole.

[0020] The sewage treatment fiber ball filtering device has the following advantages: the fiber balls are placed in the net cage, when normally filtering sewage, the net plate is lowered to press the fiber balls to prevent the fiber balls from being displaced by the impact of the sewage, and the purification effect is ensured; when the fiber balls are flushed, the net plate is raised to increase the space for accommodating the fiber balls, and the stirring rod is driven by the net plate to turn the fiber balls, thereby improving the flushing effect of the fiber balls; and the fiber balls are placed in the net cage, all the fiber balls can be taken out and placed in once through the net cage, and the convenience of replacing the fiber balls is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 FIG. 1 is a structural schematic view of the fiber ball filtering device of the present application;

[0022] Figure 2It is the sectional view of the fiber ball filter device of the utility model;

[0023] Figure 3 It is the structural schematic view of the tank body of the utility model;

[0024] Figure 4 It is the connecting structure schematic view of the net box and the net plate of the utility model;

[0025] Figure 5 It is the connecting structure schematic view of the net plate and the driving shaft of the utility model;

[0026] Figure 6 It is the connecting structure schematic view of the driving shaft and the stirring piece of the utility model;

[0027] Marking illustration in the drawing: 1, tank body;2, lifting seat;3, speed reducer motor;4, hydraulic cylinder;5, driving shaft;6, pre-filter screen;7, net plate;8, net box;9, stirring piece;101, sewage pipe;102, flushing pipe;103, clean water pipe;104, sewage pipe;105, flared section;501, limit ring;701, bolt;702, stirring rod;901, threaded sleeve;902, paddle. DETAILED DESCRIPTION

[0028] The specific embodiments of the utility model are further described below in combination with the drawings and examples. The following examples are only used to more clearly illustrate the technical scheme of the utility model, and cannot limit the protection scope of the utility model.

[0029] "Top surface", "bottom", "bottom surface" are referenced to the normal use state of the fiber ball filter device, and are only used to facilitate the description of the utility model and simplify the description, and are not used to indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model.

[0030] As shown in Figure 2 , a fiber ball filter device for sewage treatment, comprising:

[0031] The tank body 1 is provided with an open top, and the top of the tank body 1 is provided with a sewage pipe 101 and a flushing pipe 102, and the bottom of the tank body 1 is provided with a sewage pipe 104 and a clean water pipe 103;

[0032] The cylindrical net box 8 is coaxially arranged inside the tank body 1, and the net box 8 is sealingly connected with the inner circumferential surface of the tank body 1, and the top of the net box 8 is provided with an open top;

[0033] The net plate 7 is horizontally arranged inside the net box 8, and the net plate 7 and the net box 8 form a cavity for accommodating fiber balls, and the net plate 7 is fixedly connected with a stirring rod 702;

[0034] A driving assembly is arranged on the tank body 1, and the driving assembly is in transmission connection with the mesh plate 7, and is used for driving the mesh plate 7 to lift and rotate.

[0035] A large amount of sewage is generated in the production and life process of the environmental protection industrial park, and the sewage needs to be treated before being discharged, so that the sewage meets the discharge standard. Therefore, a fiber ball filtering device is arranged to purify the sewage once. In the sewage purification device, valves for controlling the opening and closing of the sewage pipe 101, the flushing pipe 102, the clean water pipe 103 and the sewage discharge pipe 104 are arranged on the sewage pipe 101, the flushing pipe 102, the clean water pipe 103 and the sewage discharge pipe 104 respectively. The mesh box 8 and the mesh plate 7 are made of stainless steel. A rubber sealing element is arranged between the mesh box 8 and the tank body 1 to prevent the sewage from passing through the gap between the two, so as to ensure the purification effect of the sewage. When the purification device purifies the sewage, the sewage pipe 101 and the clean water pipe 103 are opened, and the flushing pipe 102 and the sewage discharge pipe 104 are closed. The sewage enters the top of the tank body 1 from the sewage pipe 101, then flows downward through the mesh box 8, and is purified by the fiber balls in the mesh box 8. The purified water is discharged from the clean water tank 103. In this process, the mesh plate 7 moves downward to generate a certain pressure on the fiber balls. The pressure only causes the fiber balls to deform slightly. In this way, the position of the fiber balls can be limited by the mesh plate 7 to prevent the fiber balls from being dispersed in all directions under the impact of the sewage, so that the sewage can pass through the fiber balls to achieve good water purification effect. When the fiber balls are used for a long time and a large amount of dirt adheres to the fiber balls, the mesh plate 7 rises to give the fiber balls more space. At this time, the sewage pipe 101 and the clean water pipe 103 are closed, and the flushing pipe 102 and the sewage discharge pipe 104 are opened. The flushing pipe 102 injects clean water into the tank body 1 to submerge all the fiber balls. Then the mesh plate 7 is rotated to drive the stirring rod 702 to stir the fiber balls. The fiber balls are flipped in the clean water by the fiber balls being hit by the stirring rod, so as to increase the spacing between the fiber balls, so that the dirt on the fiber balls falls off. The mesh plate 7 and the mesh box 8 cannot pass through the fiber balls, but can pass through the relatively large particles of dirt. The falling dirt is discharged from the sewage discharge pipe 104 with the water flow. In this way, the fiber balls can be cleaned, and the purification effect of the fiber ball filtering device on the sewage can be improved. The fiber balls in the tank body 1 are always inside the mesh box 8. All the fiber balls in the tank body 1 can be taken out at one time through the mesh box 8, so that the convenience of replacing the fiber balls is improved.

[0036] Further improvement is that, as shown in Figure 1 The driving assembly includes a lifting seat 2 arranged directly above the tank body 1. The tank body 1 is fixedly connected with a hydraulic cylinder 4. The lifting end of the hydraulic cylinder 4 is fixedly connected with the lifting seat 2. The lifting seat 2 is fixedly connected with a speed reducer motor 3. The output shaft of the speed reducer motor 3 is fixedly connected with a driving shaft 5. The driving shaft 5 is coaxially arranged with the tank body 1 and is detachably connected with the mesh plate 7.

[0037] Specifically, the hydraulic cylinder 4 is used to push the lifting seat 2 to lift, the top end of the drive shaft 5 is connected with the lifting seat 2 through a bearing, and the drive shaft 5 is driven to rotate by the reduction motor 3, so that the lifting and rotation of the drive shaft 5 are realized, and then the drive shaft 5 drives the mesh plate 7 to lift and rotate, and the mesh plate 7 is always inside the net box 8 when lifting, so as to prevent the fiber balls from falling out of the net box 8.

[0038] Further improvement is that, as shown in Figure 5 and 6 , the mesh plate 7 is provided with a first through hole for the drive shaft 5 to pass through, the drive shaft 5 is coaxially and fixedly connected with a limiting ring 501, and the mesh plate 7 is connected with the limiting ring 501 through a bolt 701. The fixing and separation between the mesh plate 7 and the drive shaft 5 are realized through the bolt 701, so that the disassembly and assembly of the mesh plate 7 are facilitated, and the convenience of equipment maintenance is improved.

[0039] Further improvement is that, as shown in Figure 4 , the bottom surface of the net box 8 is provided with a second through hole for the drive shaft 5 to pass through, and a stirring piece 9 is arranged below the net box 8, and the stirring piece 9 is detachably connected with the bottom end of the drive shaft 5. The gap between the drive shaft 5 and the net box 8 cannot pass the fiber balls, and the stirring piece 9 is driven to rotate when the drive shaft 5 rotates, so that the flow rate of the clear water in the tank body 1 is accelerated and the water flow direction is changed through the stirring piece 9, so that the water flow repeatedly washes the fiber balls, and the washing effect of the fiber balls is improved, and finally the purification capacity of the filtering device to the sewage is improved; and the water flow can also wash the inner wall of the tank body 1, so as to improve the cleanliness inside the tank body 1.

[0040] Further improvement is that, as shown in Figure 6 , the stirring piece 9 comprises a threaded sleeve 901, the bottom end of the drive shaft 5 has a threaded segment which is threadedly connected with the threaded sleeve 901, and a plurality of paddles 902 are circumferentially and equally spaced on the outer periphery of the threaded sleeve 901. The threaded sleeve 901 is threadedly connected with the drive shaft 5, so as to improve the convenience of disassembly and assembly of the threaded sleeve 901, thereby facilitating the disassembly and assembly of the paddles 902; and the disassembly and assembly of the net box 8 and the mesh plate 7 which are sleeved on the drive shaft 5 are also facilitated, and the convenience of use of the filtering device is improved.

[0041] Further improvement is that, as shown in Figure 4 , the outer diameter of the threaded sleeve 901 is greater than the hole diameter of the second through hole. In this way, when the drive shaft 5 rises, the threaded sleeve 901 can push the net box 8 upwards, so as to lift the net box 8 and the mesh plate 7 from the inside of the tank body 1, thereby improving the convenience of taking and placing the net box 8 and the mesh plate 7, and improving the convenience of replacing the fiber balls.

[0042] Further improvement is that, as shown in Figure 3As shown, the bottom of the tank body 1 is a conical structure, the drain pipe 104 is arranged at the bottom of the conical structure, and the clean water pipe 103 is arranged at the side of the conical structure. The conical structure can gather the stains that are docked at the bottom of the tank body 1, so that the stains are gathered at the drain pipe 104, facilitating discharge; the clean water pipe 103 is located above the drain pipe 104 and is arranged close to the net box 8, so that the clean water pipe 103 maintains a certain distance from the bottom of the tank body 1, which can prevent the stains deposited at the bottom of the tank body 1 from entering the clean water pipe 103, so as to reduce the number of impurities in the filtered water and improve the purification effect of the filtering device; and the conical structure reduces the inner diameter of the bottom of the tank body 1, so that the conical structure can support and limit the position of the net box 8 in the tank body 1.

[0043] Further improvement is that, as shown in the drawings, Figure 3 The top of the tank body 1 has an expanded section 105, the inner diameter of the expanded section 105 is larger than that of the tank body 1, and the sewage pipe 101 and the flushing pipe 102 are in communication with the expanded section 105. The increase of the inner diameter at the expanded section 105 provides more space for the net box 8 to pass through, facilitating the taking and placing of the net box 8 in the tank body 1, and when the fiber balls are replaced, the net box 8 is lifted to the expanded section 105, the resistance of the tank body 1 to the net box 8 disappears, the friction between the stirring piece 9 and the net box 8 can drive the net box 8 to rotate, so that the fiber balls in the net box 8 are spun dry by the centrifugal force, facilitating the subsequent replacement of the fiber balls.

[0044] Further improvement is that, as shown in the drawings, Figure 2 and 4 The expanded section 105 is horizontally provided with a pre-filter screen 6, the pre-filter screen 6 is sealingly connected with the inner periphery of the expanded section 105, and the pre-filter screen 6 is provided with a third through hole. The driving shaft 5 penetrates through the third through hole, and the pre-filter screen 6 is located below the sewage pipe 101. The pre-filter screen 6 can preliminarily filter the large-particle stains and large-volume impurities in the sewage, and can also make the sewage entering the tank body 1 uniformly distributed, so as to improve the filtering effect of the fiber balls on the sewage and prolong the service life of the fiber balls.

[0045] It can be understood that the utility model is described through some embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the utility model.

Claims

1. A fiber ball filter device for wastewater treatment, characterized in that, Include: The tank (1) is provided with a sewage pipe (101) and a flushing pipe (102) at the top, and is provided with a sewage pipe (104) and a clean water pipe (103) at the bottom; The cylindrical net cage (8) is coaxially arranged in the tank (1), and the inner wall of the tank (1) is sealingly connected with the net cage (8), and the top of the net cage (8) is open; The net plate (7) is horizontally arranged in the net cage (8), and the net plate (7) and the net cage (8) form a cavity for containing fiber balls, and the net plate (7) is fixedly connected with the stirring rod (702); The driving assembly is arranged on the tank (1), and the driving assembly is drivingly connected with the net plate (7) for driving the net plate (7) to lift and rotate.

2. The filter device according to claim 1, wherein The driving assembly includes a lifting seat (2) arranged above the tank (1), a hydraulic cylinder (4) fixedly connected with the tank (1), a lifting end of the hydraulic cylinder (4) fixedly connected with the lifting seat (2), a reduction motor (3) fixedly connected with the lifting seat (2), an output shaft of the reduction motor (3) fixedly connected with a driving shaft (5), the driving shaft (5) coaxially arranged with the tank (1), and the driving shaft (5) is detachably connected with the net plate (7).

3. The filter device according to claim 2, wherein The net plate (7) is provided with a first through hole for the driving shaft (5) to pass through, the driving shaft (5) is coaxially fixedly connected with a limiting ring (501), and the net plate (7) is connected with the limiting ring (501) through bolts (701).

4. The filter device according to claim 2, wherein The bottom surface of the net cage (8) is provided with a second through hole for the driving shaft (5) to pass through, and a stirring member (9) is arranged below the net cage (8).

5. The filter device according to claim 4, wherein The stirring member (9) includes a threaded sleeve (901), the bottom end of the driving shaft (5) has a threaded section threadedly connected with the threaded sleeve (901), and the outer periphery of the threaded sleeve (901) is circumferentially and equally spaced with a plurality of paddles (902).

6. The filter device according to claim 5, wherein The outer diameter of the threaded sleeve (901) is greater than the hole diameter of the second through hole.

7. The filter device according to claim 1, wherein The bottom of the tank (1) is a conical structure, the sewage pipe (104) is arranged at the bottom of the conical structure, and the clean water pipe (103) is arranged at the side of the conical structure.

8. The filter device according to claim 1, wherein The top of the tank (1) has a flared section (105), the inner diameter of the flared section (105) is greater than the inner diameter of the tank (1), and the sewage pipe (101) and the flushing pipe (102) are in communication with the flared section (105).

9. The filter device according to claim 8, wherein The inside of the flared section (105) is horizontally provided with a pre-filter screen (6), the inner wall of the flared section (105) is sealingly connected with the pre-filter screen (6), and the pre-filter screen (6) is provided with a third through hole.

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