Microfilter for fish culture in circulating water

Abstract

A microfilter for fish culture in circulating water comprises a support, a filter barrel is rotatably arranged on the upper portion of the support, a micropore screen is arranged on the circumferential face of the filter barrel, a driving assembly used for driving the filter barrel to rotate is further arranged on the upper portion of the support, a water inlet pipe is further arranged on the upper portion of the support, and the water inlet pipe and the filter barrel are coaxially arranged. One end of the water inlet pipe is located outside the filtering barrel, the other end of the water inlet pipe extends into the filtering barrel, a conveying assembly for removing dirt is further arranged on the upper portion of the support, one end of the conveying assembly is located outside the filtering barrel, and the other end of the conveying assembly is located inside the filtering barrel; the wing plates are arranged to bear washed-off dirt to the maximum extent, then the conveying belt with the shifting plate is arranged, the dirt can be automatically discharged from the dirt discharging groove, and the situation that the filtering effect is affected due to dirt accumulation is prevented.

Description

Technical Field

[0001] This utility model relates to the field of microfiltration technology, and more specifically to a microfiltration machine for recirculating aquaculture. Background Technology

[0002] Microfiltration machines use microporous screens with a mesh size of 80-200 mesh / square inch fixed on a rotary drum filter. They are purification devices that achieve solid-liquid separation by trapping solid particles in wastewater. During filtration, the microporous screens are cleaned in a timely manner by the rotation of the drum and the force of backwash water, ensuring that the equipment is always in good working condition. Rotary drum screens purify water by separating solid waste from wastewater, achieving the purpose of recycling.

[0003] However, microfiltration machines still have some drawbacks. When backwashing the microporous screen, some dirt falls into the water, affecting the filtration effect. At the same time, the dirt washed away tends to accumulate in the drain tank and is not easy to be discharged from the drain outlet. Utility Model Content

[0004] One advantage of this invention is that it provides a microfilter for recirculating aquaculture, which is equipped with wing plates to maximize the absorption of washed-down dirt, and a conveyor belt with baffles to automatically discharge dirt from the drain tank, preventing dirt accumulation from affecting the filtration effect.

[0005] To achieve at least one of the above advantages of this utility model, this utility model provides a microfilter for recirculating aquaculture, including a support frame. A filter barrel is rotatably mounted on the upper part of the support frame. The circumferential surface of the filter barrel is a microporous screen. A drive assembly for driving the filter barrel to rotate is also provided on the upper part of the support frame. A water inlet pipe is also provided on the upper part of the support frame. The water inlet pipe is coaxially arranged with the filter barrel. One end of the water inlet pipe is located outside the filter barrel, and the other end of the water inlet pipe extends into the filter barrel. A transport assembly for removing dirt is also provided on the upper part of the support frame. One end of the transport assembly is located outside the filter barrel, and the other end of the transport assembly is located inside the filter barrel.

[0006] According to one embodiment of the present invention, the microporous screen is located in the middle of the filter barrel, and the two ends of the filter barrel are non-porous plates. A limiting plate is provided on the outer circumference of the non-porous plate at the first end of the filter barrel. The upper two ends of the support are respectively provided with a bearing wheel and a limiting wheel. The non-porous plate is located on the bearing wheel and the limiting wheel so that the filter barrel can rotate in place. A limiting groove is provided in the middle of the limiting wheel, and the limiting plate is located inside the limiting groove.

[0007] According to one embodiment of the present invention, a shell is fixedly mounted on the bracket, the microporous screen portion of the filter barrel is located inside the shell, and sealing rings are provided at both ends of the shell, forming a sealing structure with the non-porous plate through the sealing rings.

[0008] According to one embodiment of the present invention, a rinsing pipe is further provided inside the outer shell, and a plurality of nozzles are provided in the middle of the rinsing pipe. The plurality of nozzles are all located directly above the microporous screen and spray water toward the microporous screen.

[0009] According to one embodiment of the present invention, the transport component includes a drain trough, one end of which is located inside the filter barrel and directly below the nozzle, and the other end of which extends to the outside of the filter barrel.

[0010] According to one embodiment of the present invention, wing plates are inclinedly arranged on both sides of the sewage discharge trough located inside the filter barrel.

[0011] According to one embodiment of the present invention, a conveyor belt is provided at the bottom of the sewage discharge trough, and several baffles are also provided on the conveyor belt. A sewage discharge motor is provided below one end of the sewage discharge trough located outside the filter barrel. The output shaft of the sewage discharge motor is connected to a drive wheel. A driven wheel is provided below one end of the sewage discharge trough located inside the filter barrel. Both the drive wheel and the driven wheel are coupled to the conveyor belt.

[0012] According to one embodiment of the present invention, the drive assembly includes a rotary motor fixedly mounted on the upper part of a bracket, the output shaft of the rotary motor is connected to a first gear, a second gear is provided at one end of the filter barrel near the rotary motor, and the first gear is meshed with a chain and connected to the second gear through the chain.

[0013] According to one embodiment of the present invention, a control box is also provided on the upper part of the bracket.

[0014] According to one embodiment of the present invention, a drain outlet is also provided at the lower end of the outer shell. Attached Figure Description

[0015] Figure 1 This is a side view of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the rear view structure of this utility model;

[0018] In the attached diagram: 1. Water inlet pipe, 2. Control box, 3. Chain, 4. Flushing device, 5. Housing, 6. Conveyor belt, 7. Sewage trough, 8. Paddle plate, 9. Drive wheel, 10. Bearing wheel, 11. Bracket, 12. Drain outlet, 13. Rotary motor, 14. Limit wheel, 15. Flushing pipe, 16. Microporous screen, 17. Filter barrel, 18. Wing plate. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the following description will be provided in conjunction with the appendix of this utility model. Figure 1 ~Attached Figure 3The present invention will be described in more detail below.

[0020] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0021] Those skilled in the art should understand that, in the disclosure of this specification, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0022] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0023] This utility model provides a microfilter for recirculating aquaculture fish farming, including a support frame 11. A filter barrel 17 is rotatably mounted on the upper part of the support frame 11. The circumferential surface of the filter barrel 17 is a microporous screen 16. A drive assembly for rotating the filter barrel 17 is also provided on the upper part of the support frame 11. A water inlet pipe 1 is also provided on the upper part of the support frame 11, coaxially arranged with the filter barrel 17. One end of the water inlet pipe 1 is located outside the filter barrel 17, and the other end extends into the filter barrel 17. A transport assembly for removing dirt is also provided on the upper part of the support frame 11, with one end of the transport assembly located inside the filter barrel 17. The outer end of the transport component is located inside the filter barrel 17; the microporous screen 16 is located in the middle of the filter barrel 17, and both ends of the filter barrel 17 are non-porous plates. A limit plate is provided on the outer circumference of the non-porous plate at the front end of the filter barrel 17. The upper two ends of the support 11 are respectively provided with a bearing wheel 10 and a limit wheel 14. The non-porous plate is located on the bearing wheel 10 and the limit wheel 14, allowing the filter barrel 17 to rotate in place. A limit groove is provided in the middle of the limit wheel 14, and the limit plate is located inside the limit groove. A shell 5 is fixedly installed on the support 11, and the microporous screen 16 part of the filter barrel 17 is located inside the shell 5. The two ends of the shell 5 are provided with A sealing ring is provided, and a sealing structure is formed between the sealing ring and the non-porous plate; a flushing pipe 15 is also provided inside the outer shell 5, and several nozzles are provided in the middle of the flushing pipe 15. The nozzles are all located directly above the microporous screen 16 and spray water towards the microporous screen 16; the transport component includes a sewage discharge trough 7, one end of which is located inside the filter barrel 17 and directly below the nozzles, and the other end of which extends to the outside of the filter barrel 17; wing plates 18 are inclinedly provided on both sides of the sewage discharge trough 7 located inside the filter barrel 17; a conveyor belt 6 is provided at the bottom of the sewage discharge trough 7, and several baffles 8 are also provided on the conveyor belt 6. A sewage discharge motor is installed below one end of the filter barrel 17 outside the filter barrel 17. The output shaft of the sewage discharge motor is connected to a drive wheel 9. A driven wheel is installed below one end of the sewage discharge tank 7 inside the filter barrel 17. Both the drive wheel 9 and the driven wheel are coupled to the conveyor belt 6. The drive assembly includes a rotary motor 13 fixedly installed on the upper part of the bracket 11. The output shaft of the rotary motor 13 is connected to a first gear. A second gear is installed at one end of the filter barrel 17 near the rotary motor 13. The first gear is meshed with a chain 3 and connected to the second gear through the chain 3. A control box 2 is also installed on the upper part of the bracket 11. A drain outlet 12 is also installed at the lower end of the outer casing 5.

[0024] The first embodiment of this utility model is as follows:

[0025] A microfiltration system for recirculating aquaculture includes a support frame 11. A filter barrel 17 is rotatably mounted on the upper part of the support frame 11. The circumferential surface of the filter barrel 17 is a microporous screen 16 with numerous tiny perforations, allowing clean water to flow through while removing microorganisms, algae, and other impurities, thus achieving a filtration effect. The microporous screen 16 is located in the middle of the filter barrel 17. The circumferential surfaces at both ends of the filter barrel 17 are non-perforated plates, while the end plates at both ends of the filter barrel 17 are flat plates with perforations in the center. During filtration, the water level is controlled to be below the through hole to prevent water overflow. A limiting plate is provided on the outer circumference of the non-perforated plate at the head end of the filter bucket 17. The limiting plate is a raised thin plate that surrounds the non-perforated plate. The upper two ends of the bracket 11 are respectively provided with a bearing wheel 10 and a limiting wheel 14. The non-perforated plate is located on the bearing wheel 10 and the limiting wheel 14, allowing the filter bucket 17 to rotate in place. A limiting groove is provided in the middle of the limiting wheel 14, and the limiting plate is located inside the limiting groove, which can play a limiting role and prevent the filter bucket 17 from moving back and forth.

[0026] A housing 5 is fixedly mounted on the support 11. A drain outlet 12 is also provided at the lower end of the housing 5. The microporous screen 16 of the filter bucket 17 is located inside the housing 5. Sealing rings are provided at both ends of the housing 5, and a sealing structure is formed with the non-porous plate through the sealing rings. A water inlet pipe 1 is also provided on the upper part of the support 11. The water inlet pipe 1 is coaxially arranged with the filter bucket 17. One end of the water inlet pipe 1 is located outside the filter bucket 17, and the other end of the water inlet pipe 1 extends from the through hole in the middle of the end plate into the filter bucket 17. In use, the water inlet pipe 1 is connected to the fish pond through a water pipe and a water pump, and the water in the fish pond is pumped into the filter bucket 17. Due to gravity and the rotation of the microporous screen 16, the dirt will be filtered on the inner side of the microporous screen 16. The filtered water is discharged from the drain outlet 12 and connected to the water pipe to enter the next treatment process, or discharged into the fish pond.

[0027] The rinsing device includes a rinsing pipe 15 located inside the housing 5, connected by a rinsing water pump and hose. External water is introduced into the rinsing pipe 15 and sprayed out from the nozzles. Several nozzles are located directly above the microporous screen 16 and spray water towards the microporous screen 16. During the filtration process of the microporous screen 16, the screened dirt accumulates on the microporous screen 16. As the microporous screen 16 rotates, the dirt rotates to the top and is washed away by the water sprayed from the nozzles, thus falling into the drain tank 7. At the same time, in order to prevent dirt from falling into the water, wing plates 18 are inclinedly arranged on both sides of the drain tank 7. The two ends of the wing plates 18 extend to a position close to the microporous screen 16, which can catch the washed-away dirt to the greatest extent and flow into the drain tank 7 under the action of gravity.

[0028] A conveyor belt 6 is installed at the bottom of the sewage discharge trough 7. The sewage discharge trough 7 and the conveyor belt 6 extend from the through hole in the middle of the end plate to the outside of the filter barrel 17. Several baffles 8 are also installed on the conveyor belt 6. A sewage discharge motor is installed below the end of the sewage discharge trough 7 located outside the filter barrel 17. The output shaft of the sewage discharge motor is connected to the drive wheel 9. A driven wheel is installed below the end of the sewage discharge trough 7 located inside the filter barrel 17. Both the drive wheel 9 and the driven wheel are coupled to the conveyor belt 6. The sewage discharge motor drives the conveyor belt 6 to rotate, which carries the dirt out of the filter barrel 17. At the same time, the presence of the baffles 8 improves the sewage discharge effect. After the dirt is carried out, it will automatically fall into the sewage bucket located outside and be collected.

[0029] The drive assembly is used to drive the filter barrel 17 to rotate. It includes a rotary motor 13 fixedly mounted on the upper part of the bracket 11. The output shaft of the rotary motor 13 is connected to a first gear. A second gear is provided at one end of the filter barrel 17 near the rotary motor 13. The first gear is meshed with a chain 3 and connected to the second gear through the chain 3. The rotary motor 13 outputs power and drives the filter barrel 17 to rotate through the chain 3.

[0030] A control box 2 is also installed on the upper part of the bracket 11. The control box 2 contains a PLC controller, switch, and power supply, which are electrically connected to the rotary motor 13, the sewage motor, and the flushing water pump for easy control and adjustment of rotation.

[0031] It should be noted that the terms "first, second, and third" used in this utility model are for descriptive purposes only and do not indicate any order. They should not be construed as indicating or implying relative importance, and can be interpreted as names.

[0032] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functional and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the principles, the implementation of the present invention may have any modifications or variations.

Claims

1. A microfilter for recirculating water fish farming, characterized by: The application relates to a filter device, which comprises a support, a filter barrel rotatably arranged on the upper part of the support, a microporous screen arranged on the circumferential surface of the filter barrel, a driving assembly for driving the filter barrel to rotate, a water inlet pipe coaxially arranged with the filter barrel, one end of the water inlet pipe being located outside the filter barrel and the other end of the water inlet pipe extending into the filter barrel, and a conveying assembly for removing dirt, one end of the conveying assembly being located outside the filter barrel and the other end of the conveying assembly being located inside the filter barrel.

2. The recirculating aquaculture filter of claim 1, wherein: The microporous screen is arranged at the middle part of the filter barrel, both ends of the filter barrel are provided with non-porous plates, a limiting plate is arranged on the outer circumferential surface of the non-porous plate at the head of the filter barrel, both ends of the upper part of the support are provided with a bearing wheel and a limiting wheel, the non-porous plate is arranged on the bearing wheel and the limiting wheel so that the filter barrel can rotate in place, and the middle part of the limiting wheel is provided with a limiting groove and the limiting plate is arranged in the limiting groove.

3. The recirculating aquaculture filter of claim 2, wherein: An outer shell is fixedly arranged on the support, the microporous screen of the filter barrel is arranged in the outer shell, and the outer shell is provided with sealing rings at both ends and forms a sealing structure with the non-porous plates.

4. The recirculating aquaculture filter of claim 3, wherein: A flushing pipe is further arranged in the outer shell, a plurality of spray heads are arranged at the middle part of the flushing pipe, and the plurality of spray heads are arranged above the microporous screen and spray water towards the microporous screen.

5. The recirculating aquaculture filter of claim 4, wherein: The conveying assembly comprises a sewage discharge groove, one end of the sewage discharge groove is located inside the filter barrel and below the spray heads, and the other end of the sewage discharge groove extends outside the filter barrel.

6. The recirculating aquaculture filter of claim 5, wherein: Wing plates are arranged on both sides of the sewage discharge groove inside the filter barrel.

7. The recirculating aquaculture filter of claim 5, wherein: A conveying belt is arranged at the bottom of the sewage discharge groove, a plurality of push plates are further arranged on the conveying belt, a sewage discharge motor is arranged below one end of the sewage discharge groove outside the filter barrel, a driving wheel is connected to the output shaft of the sewage discharge motor, a driven wheel is arranged below one end of the sewage discharge groove inside the filter barrel, and the driving wheel and the driven wheel are coupled with the conveying belt.

8. The recirculating aquaculture filter of claim 1, wherein: The driving assembly comprises a rotating motor fixedly arranged on the upper part of the support, a first gear is connected to the output shaft of the rotating motor, a second gear is arranged at one end of the filter barrel close to the rotating motor, and the first gear is connected with a chain and connected with the second gear through the chain.

9. The recirculating aquaculture filter of claim 1, wherein: The upper part of the support is further provided with a control box.

10. The recirculating aquaculture filter of claim 3, wherein: A water outlet is further arranged at the lower end of the outer shell.

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