Aquaculture circulating water filtering device

Abstract

The utility model relates to a circulating water filtering device for aquaculture. The circulating water filtering device comprises a physical filtering tank, a biochemical filtering tank, a roller filter, a V-shaped collector and the like, one side of the physical filter tank is communicated with a water inlet pipe used for introducing sewage in the culture pond, a biochemical filter tank is arranged on the other side of the physical filter tank in parallel, a partition plate is mounted in the physical filter tank and divides an inner cavity of the physical filter tank into a large chamber and a small chamber, a roller filter is rotatably arranged in the large chamber, and a water outlet pipe is arranged in the small chamber. The open end of the roller filter faces the small cavity, a V-shaped collector used for collecting pollutants adhering to the inner wall of the roller filter is arranged in the roller filter, and one side of the top of the V-shaped collector is in sliding contact fit with the inner wall of the roller filter. The V-shaped collector is in contact fit with the inner wall of the roller filter, so that when the roller filter rotates, the V-shaped collector scrapes away adhered matters on the inner wall of the roller filter, and the self-cleaning of the roller filter is realized.

Description

Technical Field

[0001] This utility model relates to a circulating water filtration device, and more particularly to a circulating water filtration device for aquaculture. Background Technology

[0002] In the aquaculture industry, water quality management is a key factor in ensuring the healthy growth of fish and other aquatic organisms. Traditional open systems maintain water quality by frequently changing the water, but this method not only wastes a lot of water resources but also increases operating costs and burdens the environment. Therefore, recirculating aquaculture systems are gradually becoming the mainstream choice for modern aquaculture.

[0003] The core of a circulating water system lies in its efficient filtration device, which removes solid waste, organic matter, and harmful substances (such as ammonia nitrogen and nitrite) from the water, thereby maintaining good water quality. However, existing filtration equipment often has the following problems: First, after a period of use, the filter will accumulate a lot of pollutants, resulting in incomplete water purification; second, cleaning the filter often requires disassembly, making maintenance inconvenient.

[0004] Therefore, it is necessary to design an aquaculture circulating water filtration device with high filtration efficiency and easy cleaning and maintenance, so as to achieve the effect of efficient filtration of wastewater in aquaculture ponds. Utility Model Content

[0005] The technical solution is as follows: A circulating water filtration device for aquaculture includes a physical filtration tank, an inlet pipe, a baffle plate, a biochemical filtration tank, a return pipe, a drum filter, and a V-shaped collector. One side of the physical filtration tank is connected to an inlet pipe for introducing wastewater from the aquaculture tank. A biochemical filtration tank is arranged parallel to the other side of the physical filtration tank, and the physical and biochemical filtration tanks are connected. An overflow plate installed in the biochemical filtration tank divides its inner cavity into multiple interconnected chambers. A baffle plate is installed inside the physical filtration tank, dividing its inner cavity into a large chamber and a small chamber. A drum filter is rotatably installed in the large chamber, with its open end facing the small chamber. Wastewater flowing in from the inlet pipe enters the drum filter through the small chamber. A V-shaped collector is installed inside the drum filter to collect pollutants adhering to its inner wall. The top side of the V-shaped collector slides in contact with the inner wall of the drum filter.

[0006] Furthermore, a T-shaped mounting plate is provided on the outer wall of the V-shaped collector, and a cleaning brush is slidably connected to the T-shaped mounting plate. The bristles of the cleaning brush contact and cooperate with the inner wall of the roller filter. An elastic element is provided between the end of the cleaning brush handle and the T-shaped mounting plate. The elastic element is used to drive the bristles of the cleaning brush to contact the inner wall of the roller filter.

[0007] Furthermore, a flushing nozzle is installed on the upper inner wall of the physical filtration tank, which flushes the outer wall of the drum filter to remove the adhering substances on its inner wall.

[0008] Furthermore, a driven wheel is installed on the outer wall of the drum filter, and the output shaft of the motor installed on the physical filtration tank is connected to a driving wheel. The driving wheel meshes with the driven wheel, and the motor drives the driven wheel to rotate and perform deceleration motion through the driving wheel.

[0009] Furthermore, a first drain pipe is connected to the bottom of the physical filtration tank, which is used to discharge the sedimented pollutants in the physical filtration tank.

[0010] Furthermore, one end of the V-shaped collector is connected to the inner wall of the physical filtration tank, and a second drain pipe for discharging pollutants from the V-shaped collector is connected to the physical filtration tank.

[0011] Furthermore, a sealing guide block is provided between the baffle plate and the drum filter. The sealing guide block is used to guide the sewage in the small chamber into the drum filter and to seal the connection between the baffle plate and the drum filter.

[0012] Furthermore, an oxygenation pump is installed on the outside of the biochemical filtration tank to provide oxygenation for the biochemical reactions within the biochemical filtration process.

[0013] The present invention has the following advantages: 1. The design of the roller filter combined with the V-shaped collector can efficiently remove large suspended solids and fine impurities in sewage. Through the contact and cooperation between the V-shaped collector and the inner wall of the roller filter, the V-shaped collector scrapes off the adhering material on the inner wall of the roller filter when the roller filter rotates, thereby achieving the self-cleaning of the roller filter and ensuring the filtration effect of the roller filter.

[0014] 2. Through the cooperation of the cleaning brush and the elastic element, the cleaning brush maintains effective contact with the inner wall of the roller filter. When the roller filter rotates, the cleaning brush cleans its inner wall efficiently, thereby preventing small impurities from clogging the filter holes of the roller filter and ensuring the filtration effect of the roller filter.

[0015] 3. The roller filter is cleaned by rinsing the nozzle, reducing the need for manual maintenance and ensuring the long-term stable operation of the filter. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a three-dimensional sectional view of the physical filtration tank of this utility model.

[0018] Figure 3This is a three-dimensional structural diagram of the roller filter, driven wheel, V-shaped collector, and cleaning brush of this utility model.

[0019] Figure 4 This is a three-dimensional structural diagram of the V-shaped collector, T-shaped mounting plate, cleaning brush, and elastic element of this utility model.

[0020] Figure 5 This is a three-dimensional sectional view of the biochemical filtration tank of this utility model.

[0021] In the attached diagrams: 1: Physical filtration tank; 101: Inlet pipe; 102: First drain pipe; 103: Second drain pipe; 104: Baffle plate; 105: Sealing guide block; 2: Biochemical filtration tank; 3: Overflow plate; 4: Return pipe; 41: Return water pump; 5: Roller filter; 6: Driven wheel; 7: Driven wheel; 8: Motor; 9: V-shaped collector; 10: T-shaped mounting plate; 11: Cleaning brush; 12: Elastic element; 13: Flushing water pump; 14: Flushing nozzle; 15: Aeration pump. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Example: A circulating water filtration device for aquaculture, such as Figures 1-5As shown, the system includes a physical filtration tank 1, an inlet pipe 101, a baffle plate 104, a biochemical filtration tank 2, a return pipe 4, a drum filter 5, and a V-shaped collector 9. One side of the physical filtration tank 1 is connected to the inlet pipe 101 for introducing wastewater from the aquaculture tank. The biochemical filtration tank 2 is arranged parallel to the other side of the physical filtration tank 1. A connecting hole is provided at the junction of the physical filtration tank 1 and the biochemical filtration tank 2. The filtered liquid in the physical filtration tank 1 flows into the biochemical filtration tank 2 through the connecting hole. An overflow plate 3 installed in the biochemical filtration tank 2 divides its internal cavity into interconnected sections. The biochemical filter tank 2 has multiple chambers, with overflow holes on the overflow plates 3. The overflow holes on adjacent overflow plates 3 are arranged in an up-down pattern, allowing the liquid to flow up and down within the adjacent chambers, thus achieving the effect of liquid retention and filtration within the chambers. Each chamber is filled with different filter media (such as biological packing) to promote the growth and reproduction of beneficial microorganisms such as nitrifying bacteria. The biochemical filter tank 2 is connected to a return pipe 4 for returning the filtered liquid to the aquaculture tank. A return water pump 41 is installed on the outside of the biochemical filter tank 2. The return water pump 41 pumps the filtered liquid back into the aquaculture tank. The filtered liquid is pumped into the aquaculture pond to achieve water circulation within the pond. A baffle 104 is installed inside the physical filtration pond 1, with a notch in the upper middle section. The baffle 104 divides the inner cavity of the physical filtration pond 1 into a large chamber and a small chamber. A roller filter 5 is rotatably installed in the large chamber, with its opening facing the small chamber. Wastewater flowing in through the inlet pipe 101 enters the roller filter 5 through the small chamber. After the roller filter 5 filters the wastewater, the filtered wastewater flows into the large chamber of the physical filtration pond 1, and then flows into the biological treatment pond through the connecting holes. Inside the learning pool 2, a V-shaped collector 9 is installed inside the drum filter 5 to collect pollutants adhering to the inner wall of the drum filter 5. The top side of the V-shaped collector 9 is in sliding contact with the inner wall of the drum filter 5, and one end of the V-shaped collector 9 is connected to the inner wall of the physical filtration pool 1. A second drain pipe 103 is connected to the physical filtration pool 1 to discharge the pollutants on the V-shaped collector 9. When the drum filter 5 rotates, the V-shaped collector 9 scrapes off the large particulate pollutants adhering to its inner wall. The scraped pollutants fall into the V-shaped collector 9 and are discharged through the second drain pipe 103.

[0024] like Figure 3 and Figure 4As shown, a T-shaped mounting plate 10 is provided on the outer wall of the V-shaped collector 9. The T-shaped mounting plate 10 is located on the opposite side of the V-shaped collector 9 and the inner wall of the roller filter 5. A cleaning brush 11 is slidably connected to the T-shaped mounting plate 10. The bristles of the cleaning brush 11 are in contact with the inner wall of the roller filter 5. An elastic element 12 is provided between the end of the handle of the cleaning brush 11 and the T-shaped mounting plate 10. The elastic element 12 is used to drive the bristles of the cleaning brush 11 to contact the inner wall of the roller filter 5. As the roller filter 5 rotates, the cleaning brush 11 cleans the fine particles on the inner wall of the roller filter 5 to prevent the roller filter 5 from being blocked.

[0025] like Figure 2 As shown, a flushing nozzle 14 is installed on the upper inner wall of the physical filter tank 1. The flushing nozzle 14 flushes the outer wall of the drum filter 5 to remove the adhering substances on its inner wall. A flushing water pump 13 is installed outside the physical filter tank 1. The flushing water pump 13 is used to pump the liquid filtered by the drum filter 5 to the flushing nozzle 14, and the liquid is sprayed onto the outer wall of the drum filter 5 through the flushing nozzle 14. The flushing nozzle 14 is directly opposite the V-shaped collector 9. The adhering substances on the inner wall of the drum filter 5 are flushed away through the flushing nozzle 14. The flushed adhering substances fall into the V-shaped collector 9, and the V-shaped collector 9 is discharged outward through the second drain pipe 103.

[0026] like Figures 1-3 As shown, a driven wheel 6 is installed on the outer wall of the drum filter 5. The output shaft of the motor 8 installed on the physical filter tank 1 is connected to the driving wheel 7. The driving wheel 7 meshes with the driven wheel 6. The motor 8 drives the driven wheel 6 to rotate and perform deceleration through the driving wheel 7, so that pollutants can adhere to the inner wall of the drum filter 5.

[0027] like Figure 2 As shown, the bottom of the physical filtration tank 1 is connected to a first drain pipe 102, which is used to discharge the sedimented pollutants in the physical filtration tank 1. The first drain pipe 102 is connected to a small chamber in the physical filtration tank 1.

[0028] like Figure 2 and Figure 3 As shown, a sealing guide block 105 is provided between the baffle plate 104 and the drum filter. The sealing guide block 105 is used to guide the sewage in the small chamber into the drum filter 5 and seal the connection between the baffle plate 104 and the drum filter. The sealing guide block 105 can quickly guide the sewage in the small chamber of the physical filtration tank 1 into the drum filter 5 for filtration. At the same time, its sealing function prevents sewage from seeping into the large chamber of the physical filtration tank 1 without being filtered by the drum filter 5.

[0029] like Figure 1As shown, an oxygenation pump 15 is installed on the outside of the biochemical filtration tank 2. The oxygenation pump 15 provides oxygenation for the biochemical reactions within the biochemical filtration tank.

[0030] In use, wastewater from the aquaculture pond is introduced into the small chamber of the physical filtration tank 1 through the inlet pipe 101. Then, the wastewater is guided into the drum filter 5 through the notch in the baffle 104 and the sealing guide block 105. The motor 8 operates, driving the drum filter 5 to rotate at reduced speed through the engagement of the drive wheel 7 and the driven wheel 6. As the drum filter 5 rotates, solid particles and other suspended matter from the wastewater adhere to its inner wall. While the drum filter 5 rotates, the V-shaped collector 9 scrapes off large particles adhering to its inner wall, and the scraped particles fall into the V-shaped collector 9. Simultaneously, the cleaning brush 11 further cleans the inner wall of the drum filter 5, preventing the adhering matter from clogging the filter holes. The flushing pump 13 pumps the liquid filtered by the drum filter 5 to the flushing nozzle 14, and the liquid is sprayed onto the drum filter 5. After rinsing, the adhering substances and rinsing liquid on the outer wall of the drum filter 5 fall into the V-shaped collector 9 and are guided through the V-shaped collector 9 to the second drain pipe 103 for discharge, thus achieving efficient and thorough cleaning of the drum filter 5. After physical filtration by the drum filter 5, the liquid flows into the large chamber of the physical filtration pool 1 outside the drum filter 5, and flows into the biochemical filtration pool 2 through the through holes on the side wall of the physical filtration pool 1. After entering the biochemical filtration pool 2, the filtered liquid undergoes chemical reactions with different filter media (such as biological packing) in each chamber, thereby promoting the growth and reproduction of beneficial microorganisms such as nitrifying bacteria, which degrade harmful substances such as ammonia nitrogen and nitrite in the water and improve water quality. The clean water filtered and cleaned by the biochemical filtration pool 2 is pumped back to the aquaculture pond through the return pipe 4 by the return water pump 41, thus realizing the recycling of water.

[0031] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An aquaculture recirculating water filtration device, comprising a physical filter tank (1), an inlet pipe (101), and a biochemical filter tank (2), wherein one side of the physical filter tank (1) is connected to an inlet pipe (101) for introducing wastewater from the aquaculture pond, and the other side of the physical filter tank (1) is provided with a biochemical filter tank (2) in parallel, the physical filter tank (1) and the biochemical filter tank (2) being connected, characterized in that, An overflow plate (3) installed in the biochemical filter (2) divides its inner cavity into multiple interconnected chambers. A baffle plate (104) is installed in the physical filter (1), and the baffle plate (104) divides the inner cavity of the physical filter (1) into a large chamber and a small chamber. A roller filter (5) is rotatably installed in the large chamber. The opening end of the roller filter (5) faces the small chamber. Wastewater flowing in through the inlet pipe (101) enters the roller filter (5) through the small chamber. A V-shaped collector (9) is installed in the roller filter (5) to collect pollutants adhering to the inner wall of the roller filter (5). The top side of the V-shaped collector (9) slides in contact with the inner wall of the roller filter (5).

2. The aquaculture recirculating water filtration device according to claim 1, characterized in that, A T-shaped mounting plate (10) is provided on the outer wall of the V-shaped collector (9). A cleaning brush (11) is slidably connected to the T-shaped mounting plate (10). The bristles of the cleaning brush (11) are in contact with the inner wall of the roller filter (5). An elastic element (12) is provided between the end of the handle of the cleaning brush (11) and the T-shaped mounting plate (10). The elastic element (12) is used to drive the bristles of the cleaning brush (11) to contact the inner wall of the roller filter (5).

3. The aquaculture recirculating water filtration device according to claim 2, characterized in that, The upper inner wall of the physical filter tank (1) is equipped with a flushing nozzle (14), which flushes the outer wall of the drum filter (5) to remove the adhering substances on its inner wall.

4. The aquaculture recirculating water filtration device according to claim 3, characterized in that, A driven wheel (6) is installed on the outer wall of the drum filter (5). The output shaft of the motor (8) installed on the physical filter tank (1) is connected to the driving wheel (7). The driving wheel (7) meshes with the driven wheel (6). The motor (8) drives the driven wheel (6) to rotate and perform deceleration motion through the driving wheel (7).

5. The aquaculture recirculating water filtration device according to claim 4, characterized in that, The bottom of the physical filtration tank (1) is connected to a first sewage pipe (102), which is used to discharge the sedimented pollutants in the physical filtration tank (1).

6. The aquaculture recirculating water filtration device according to claim 5, characterized in that, One end of the V-shaped collector (9) is connected to the inner wall of the physical filter tank (1), and the physical filter tank (1) is connected to a second drain pipe (103) for discharging pollutants from the V-shaped collector (9).

7. The aquaculture recirculating water filtration device according to claim 6, characterized in that, A sealing guide block (105) is provided between the baffle (104) and the drum filter. The sealing guide block (105) is used to guide the sewage in the small chamber into the drum filter (5) and seal the connection between the baffle (104) and the drum filter.

8. The aquaculture recirculating water filtration device according to claim 7, characterized in that, An oxygenation pump (15) is installed on the outside of the biochemical filter tank (2). The oxygenation pump (15) provides oxygenation for the biochemical reaction inside the biochemical filter.

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