A biological filter dam for treating effluent from marine aquaculture

Abstract

This application relates to the field of marine aquaculture wastewater treatment technology, and discloses a biological filter dam for treating marine aquaculture wastewater. The dam includes a dam body, with a second electric motor fixedly connected to one side of the dam body. A second transmission rod is fixedly connected to the output end of the second electric motor. A first transmission rod is rotatably connected to one side of the second transmission rod. A connecting rod is rotatably connected to one side of the first transmission rod. Both ends of the connecting rod are fixedly connected to curved rods. Arc-shaped grooves and straight grooves are formed on both sides of the dam body. A slider is fixedly connected to one side of the outer wall of the curved rod, and a second slider is fixedly connected to the outer wall of the curved rod. Driven by the second electric motor, the second and first transmission rods work together to drive the connecting rod, thereby moving the curved rod. Slider one and slider two slide within the straight and arc-shaped grooves, ultimately achieving the upward movement and rotation of the top cover. This facilitates the pouring of biological filler, simplifies the filler replacement process, and improves operational convenience.

Description

Technical Field

[0001] This invention relates to the field of marine aquaculture wastewater treatment technology, specifically a biological filter dam for treating marine aquaculture wastewater. Background Technology

[0002] With the rapid development of marine aquaculture, the treatment of wastewater generated during the process cannot be ignored. Aquaculture water contains large amounts of undigested feed and excrement from farmed animals. If discharged directly into nearby waters without treatment, the large amounts of nitrogen and phosphorus pollutants can lead to eutrophication, causing algal blooms, red tides, and other water pollution, seriously harming the ecological environment. Biofilters are a key device for wastewater treatment. They use biological packing material loaded within the dam to adsorb and settle pollutants flowing through the water. The adsorbed and settled pollutants are then absorbed, decomposed, and removed by microorganisms attached to the dam.

[0003] A search revealed a biological filter dam for treating mariculture tailwater in publication CN211283845U. The dam includes a filter dam body located within a tailwater pond. The filter dam body is constructed of porous bricks and filled with several mesh bags containing oyster shells and several mesh bags containing ceramsite. The volume ratio of the oyster shell mesh bags to the ceramsite mesh bags within the filter dam body is (1-2):1, and the volume ratio of individual oyster shell mesh bags to individual ceramsite mesh bags is (2-3):1. The pore size within the porous bricks... The mesh diameter of the oyster shell mesh bag is 1-2cm, and the mesh diameter of the ceramsite mesh bag is 0.5cm. Both the oyster shell mesh bag and the ceramsite mesh bag are equipped with handles. The advantages are simple structure, easy operation and good treatment effect. However, the biological filter dam in this application is inconvenient to replace the biological packing material inside, which leads to a gradual decrease in the treatment effect of the biological filter dam over time. Moreover, replacing the biological packing material may require shutdown for maintenance, resulting in the interruption of the operation of the biological filter dam and affecting its continuity and stability. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a biological filter dam for treating marine aquaculture wastewater, solving the problem that existing biological filter dams are inconvenient to replace their internal biological packing material.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a biological filter dam for treating marine aquaculture tailwater, comprising a dam body, an electric motor II fixedly connected to one side of the dam body, a transmission rod II fixedly connected to the output end of the electric motor II, a transmission rod I rotatably connected to one side of the transmission rod II, a connecting rod rotatably connected to one side of the transmission rod I, and curved rods fixedly connected to both ends of the connecting rod. Arc-shaped grooves and straight grooves are formed on both sides of the dam body. A slider I is fixedly connected to one side of the outer wall of the curved rod, and a slider II is fixedly connected to one side of the outer wall of the curved rod. The outer wall of slider I is slidably connected to the inside of the straight groove, the outer wall of slider II is slidably connected to the inside of the straight groove, and the outer wall of slider II is slidably connected to the inside of the arc-shaped groove. A top cover is fixedly connected to the top of the curved rod. A transport assembly is provided inside the dam body.

[0006] Preferably, the transport component includes a rotating shaft and auger blades, with both ends of the rotating shaft rotatably connected inside the dam body, and the auger blades being internally fixedly connected to the outer wall of the rotating shaft.

[0007] Preferably, an electric motor is fixedly connected to one side of the dam body, and the rotating shaft is fixedly connected to the output end of the electric motor.

[0008] Preferably, a permeable plate is fixedly connected inside the dam body, and an electric motor is installed inside the permeable plate.

[0009] Preferably, the dam body has a rectangular array of connecting holes inside, and an isolation net is fixedly connected to one side of the outer wall of the dam body.

[0010] Preferably, a sliding groove is provided on both sides of the inside of the dam body, a movable rod is provided inside the dam body, and push plates are fixedly connected to both sides of the outer wall of the movable rod. The outer wall of the push plate is slidably connected to the inside of the sliding groove. A push plate is fixedly connected to one side of the bottom of the movable rod, and a scraper is fixedly connected to the other side of the bottom of the movable rod.

[0011] Preferably, a micro motor is fixedly connected inside one side of the push plate, and a gear is fixedly connected to the output end of the micro motor. A rack is fixedly connected to one side inside the dam body, and the rack meshes with the gear.

[0012] Preferably, a discharge box is slidably connected to one side of the dam body, a support rod is fixedly connected to the top of the discharge box, a top plate is fixedly connected to the top of the support rod, and a water outlet trough is opened on one side of the dam body.

[0013] Preferably, a second chute is provided on one side of the inside of the dam body, and a third slider is fixedly connected to one side of the outer wall of the discharge box, with the outer wall of the third slider slidably connected inside the second chute.

[0014] Preferably, a motor three is fixedly connected to one side of the inside of the dam body, a sprocket one is fixedly connected to the output end of the motor three, a sprocket two is rotatably connected to one side of the inside of the dam body, a chain is meshed between the sprocket one and the sprocket two, a fixing block is fixedly connected to one side of the outer wall of the chain, and the outer wall of the fixing block is fixedly connected to one side of the outer wall of the discharge box.

[0015] Working principle: When the biological filler is placed inside the dam body, the second motor drives the second transmission rod to rotate. The second transmission rod then drives the connecting rod through the first transmission rod, causing the connecting rod to synchronously move the curved rods on both sides. The curved rods can catch the second and first sliders, restricting their movement trajectory. As the curved rods move, the first and second sliders slide inside the straight groove. When the first slider reaches the top of the straight groove, the second slider slides into the arc groove, causing the top cover to rise first and then rotate, allowing the biological filler to be poured in. When the biological filler is poured into the dam body, the first motor drives the rotating shaft to rotate. The auger blades on both sides of the outer wall of the rotating shaft transport the biological filler to both sides, where it falls through the permeation plate into the second motor. When the biological filler falls into the second motor, the micro motor drives the gear to rotate, and the gear rolls on the rack, causing the push plate to slide inside the first chute. This moves the moving rod, with the scraper in front, spreading the biological filler evenly inside the second motor. When the biological filler is removed, the moving rod moves in the opposite direction, bringing the push plate forward, pushing the biological filler inside the second motor into the discharge box. The third motor then drives the first sprocket to rotate, and with the assistance of the second sprocket, the chain moves. The chain moves the discharge box via the fixed block, allowing the discharge box to slide along the second chute to the top of the dam via the third slider, thus removing the biological filler from the discharge box.

[0016] This invention provides a biological filter dam for treating effluent from marine aquaculture. It has the following beneficial effects:

[0017] 1. In this invention, the transmission rod 2 is driven to rotate by the electric motor 2. The transmission rod 2 can then drive the connecting rod through the transmission rod 1, causing the connecting rod to move the curved rod. The slider 1 and slider 2, which are fixed on one side of the curved rod, first slide inside the straight groove and the arc groove, and then slide inside the arc groove through slider 2. This causes the top cover to move upward and rotate, allowing the biological filler material to be poured in. This solves the problem of inconvenient placement of biological filler material and improves the convenience of replacing biological filler material.

[0018] 2. This invention drives a rotating shaft via an electric motor, which in turn drives the auger blades to rotate. The auger blades transport the biological filler to both sides, where it falls through the permeation plate into the interior of the second electric motor. A micro motor then drives a gear to rotate, causing the gear to roll inside the rack. This allows the moving rod to move horizontally inside the second electric motor. As the scraper moves at the front, it can spread the biological filler evenly, solving the problem of unevenly cultivating biological feed inside the dam and improving the degradation efficiency of the filter dam.

[0019] 3. This invention uses a pusher plate to move at the front, pushing the biological nutrients inside the second motor into the discharge box. Then, the third motor drives the first sprocket to rotate, and the rotation of the second sprocket causes the chain to move. The chain can then drive the discharge box to the top of the dam through the fixed block, thereby processing the biological filler inside. This solves the problem of inconvenient removal of failed biological filler inside the dam and improves the efficiency of removing waste biological filler from inside the dam. Attached Figure Description

[0020] Figure 1 This is a perspective view of the present invention;

[0021] Figure 2 This is a schematic diagram of the rotating shaft structure of the present invention;

[0022] Figure 3 This is a schematic cross-sectional view of the dam body of the present invention;

[0023] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0024] Figure 5 This is a cross-sectional schematic diagram of the slider of the present invention;

[0025] Figure 6 for Figure 5 Enlarged view at point B in the middle;

[0026] Figure 7 This is a schematic diagram of the second structure of the slide groove of the present invention;

[0027] Figure 8 This is a schematic diagram of the fixing block structure of the present invention.

[0028] The components are as follows: 1. Dam body; 2. Outlet channel; 3. Isolation net; 4. Top cover; 5. Top plate; 6. Connecting hole; 7. Motor 1; 8. Rotating shaft; 9. Screw blade; 10. Arc-shaped groove; 11. Straight groove; 12. Slider 1; 13. Slider 2; 14. Motor 2; 15. Support rod; 16. Permeable plate; 17. Moving rod; 18. Push plate; 19. Curved rod; 20. Transmission rod 1; 21. Transmission rod 2; 22. Connecting rod; 23. Slide 1; 24. Scraper; 25. Rack; 26. Micro motor; 27. Gear; 28. Slider 3; 29. ​​Slide 2; 30. Discharge box; 31. Fixed block; 32. Sprocket 1; 33. Motor 3; 34. Sprocket 2; 35. Chain. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example:

[0031] Please see the appendix Figure 1 - Appendix Figure 4 This invention provides a biological filter dam for treating marine aquaculture tailwater, comprising a dam body 1. A second motor 14 is fixedly connected to one side of the dam body 1. A second transmission rod 21 is fixedly connected to the output end of the second motor 14. A first transmission rod 20 is rotatably connected to one side of the second transmission rod 21. A connecting rod 22 is rotatably connected to one side of the first transmission rod 20. Both ends of the connecting rod 22 are fixedly connected to curved rods 19. Arc-shaped grooves 10 and straight grooves 11 are formed on both sides of the dam body 1. A first slider 12 and a second slider 13 are fixedly connected to one side of the outer wall of the curved rod 19. The outer wall of the first slider 12 is slidably connected to the inside of the straight groove 11. The outer wall of the second slider 13 is slidably connected to the inside of the straight groove 11 and the outer wall of the second slider 13 is slidably connected to the inside of the arc-shaped groove 10. A top cover 4 is fixedly connected to the top of the curved rod 19.

[0032] When biological filler is added to the interior of dam body 1 for water purification, motor 212 starts and drives transmission rod 212 to rotate, thus triggering the entire mechanical motion sequence. The rotational force of transmission rod 212 is transmitted through transmission rod 10, and finally through connecting rod 22, drives the curved rods 19 on both sides to move precisely along a predetermined trajectory. The curved rods 19 are equipped with slider 12 and slider 23, which slide in the straight groove 11 and arc groove 10 respectively on the inner side of dam body 1. This design not only physically restricts the movement of the curved rods 19, but also ensures smooth movement along a specific trajectory. The movement of the curved rods 19, through the coordinated work of slider 12 and slider 23, enables the top cover 4 to rise and rotate. When slider 12 slides to the top of the straight groove 11, slider 23 slides into the arc groove 10, allowing the top cover 4 to rise first and then rotate, thus creating conditions for the addition of biological filler.

[0033] Please see the appendix Figure 5 - Appendix Figure 8 The dam body 1 is equipped with a transport assembly, which includes a rotating shaft 8 and auger blades 9. Both ends of the rotating shaft 8 are rotatably connected inside the dam body 1. The auger blades 9 are fixedly connected to the outer wall of the rotating shaft 8. A motor 7 is fixedly connected to one side of the dam body 1, and the output end of the motor 7 is fixedly connected to one side of the rotating shaft 8. A permeable plate 16 is fixedly connected inside the dam body 1, and a second motor 14 is installed inside the permeable plate 16. A rectangular array of connecting holes 6 are formed inside the dam body 1. An isolation net 3 is fixedly connected to one side of the outer wall of the dam body 1. 1. Slide grooves 23 are provided on both sides of the dam body 1. A movable rod 17 is provided inside the dam body 1. Push plates 18 are fixedly connected to both sides of the outer wall of the movable rod 17. The outer wall of the push plates 18 is slidably connected to the inside of the slide grooves 23. A push plate 18 is fixedly connected to one side of the bottom of the movable rod 17. A scraper 24 is fixedly connected to the other side of the bottom of the movable rod 17. A micro motor 26 is fixedly connected inside one push plate 18. A gear 27 is fixedly connected to the output end of the micro motor 26. A rack 25 is fixedly connected to one side of the dam body 1. The rack 25 meshes with the gear 27.

[0034] When the biological filler is poured into the dam body 1, motor 7 starts and drives the rotating shaft 8 to rotate. This action causes the auger blades 9 on both sides of the outer wall of the rotating shaft 8 to operate, effectively conveying the biological filler to both sides. This process not only accelerates the distribution speed of the filler, but also ensures the uniform distribution of the filler within the dam body through the rotation of the auger blades 9, reducing manual intervention and improving the automation level of the operation. As the biological filler is conveyed to both sides, it eventually falls into the area covered by the permeable plate 16. The permeable plate 16 is designed with tiny pores that can effectively separate solid and liquid components for further processing of the biological filler. When it falls into the motor 14 below the permeable plate 16, the biological filler will undergo further processing or transfer. During this process, micro motor 26 starts and drives gear 27 to rotate. Gear 27 meshes with rack 25, causing the gear to roll along the rack, thereby driving the push plate 18, which is fixedly connected to it, to slide within the chute 23. This sliding motion is not only smooth but also continuous, ensuring that the pusher plate 18 can evenly advance or spread the biological filler, especially inside the motor 14, where the biological filler needs to be evenly laid for subsequent processing. Furthermore, the design and configuration of the scraper 24 ensures that any biological filler adhering to the inner wall of the dam or the pusher plate 18 is effectively scraped off and reintegrated into the processing flow during movement, reducing material waste and improving processing efficiency.

[0035] A discharge box 30 is slidably connected to one side of the dam body 1. A support rod 15 is fixedly connected to the top of the discharge box 30. A top plate 5 is fixedly connected to the top of the support rod 15. A water outlet trough 2 is opened on one side of the dam body 1. A sliding groove 29 is opened on one side of the dam body 1. A slider 38 is fixedly connected to one side of the outer wall of the discharge box 30. The outer wall of slider 38 is slidably connected to the inside of sliding groove 29. A motor 33 is fixedly connected to one side of the dam body 1. A sprocket 1 32 is fixedly connected to the output end of motor 33. A sprocket 2 34 is rotatably connected to one side of the dam body 1. A chain 35 is meshed between sprocket 1 32 and sprocket 2 34. A fixing block 31 is fixedly connected to one side of the outer wall of chain 35. The outer wall of fixing block 31 is fixedly connected to one side of the outer wall of discharge box 30.

[0036] During operation, when the biological packing material needs to be removed from the system, the operator first activates motor 2 14, which drives the moving rod 17 to move in the opposite direction via an internal mechanism. The moving rod 17 then pushes the push plate 18, causing it to move forward and push the biological packing material in motor 2 14 into the discharge box 30. Next, the operator starts motor 33. The output end of motor 33 is fixedly connected to sprocket 1 32. When motor 33 starts, it drives sprocket 1 32 to rotate. Sprocket 1 32 and sprocket 2 34 are connected by a chain 35, so the rotation of sprocket 1 32 causes the chain 35 to move. A fixing block 31 is fixed on the chain 35, which is fixedly connected to the outer wall of the discharge box 30, thus enabling the movement of the discharge box 30. A slider 3 28 is fixedly connected to one side of the outer wall of the discharge box 30. Slider 3 28 is designed to slide inside the chute 2 29. Driven by motor 33, discharge box 30 slides upward along chute 29 via slider 328 until it reaches the top of dam body 1. At this point, the biological filler in discharge box 30 can be safely removed for further processing.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A biological filter dam for treating marine aquaculture wastewater, comprising a dam body (1), characterized in that: A second motor (14) is fixedly connected to one side of the dam body (1). A second transmission rod (21) is fixedly connected to the output end of the second motor (14). A first transmission rod (20) is rotatably connected to one side of the second transmission rod (21). A connecting rod (22) is rotatably connected to one side of the first transmission rod (20). Curved rods (19) are fixedly connected to both ends of the connecting rod (22). Arc-shaped grooves (10) are opened on both sides of the dam body (1). Straight grooves (11) are opened on both sides of the dam body (1). A slider one (12) is fixedly connected to one side of the outer wall of the curved rod (19), and a slider two (13) is fixedly connected to one side of the outer wall of the curved rod (19). The outer wall of slider one (12) is slidably connected to the inside of the straight groove (11), the outer wall of slider two (13) is slidably connected to the inside of the straight groove (11), the outer wall of slider two (13) is slidably connected to the inside of the arc groove (10), and a top cover (4) is fixedly connected to the top of the curved rod (19). A transport component is set inside the dam body (1). The transport assembly includes a rotating shaft (8) and an auger blade (9). Both ends of the rotating shaft (8) are rotatably connected inside the dam body (1), and the auger blade (9) is fixedly connected inside the outer wall of the rotating shaft (8). The dam body (1) has a sliding groove (23) on both sides inside. A movable rod (17) is installed inside the dam body (1). Push plates (18) are fixedly connected to both sides of the outer wall of the movable rod (17). The outer wall of the push plate (18) is slidably connected inside the sliding groove (23). A push plate (18) is fixedly connected to one side of the bottom of the movable rod (17). A scraper (24) is fixedly connected to the other side of the bottom of the movable rod (17).

2. A biological filter dam for treating marine aquaculture tailwater according to claim 1, characterized in that, The dam body (1) is fixedly connected to one side of the motor (7), and the rotating shaft (8) is fixedly connected to the output end of the motor (7) on one side.

3. A biological filter dam for treating marine aquaculture tailwater according to claim 1, characterized in that, The dam body (1) is fixedly connected to a permeable plate (16), and an electric motor (14) is installed inside the permeable plate (16).

4. A biological filter dam for treating marine aquaculture tailwater according to claim 3, characterized in that, The dam body (1) has a rectangular array of connecting holes (6) inside, and an isolation net (3) is fixedly connected to one side of the outer wall of the dam body (1).

5. A biological filter dam for treating marine aquaculture tailwater according to claim 4, characterized in that, A micro motor (26) is fixedly connected inside the push plate (18) on one side, and a gear (27) is fixedly connected to the output end of the micro motor (26). A rack (25) is fixedly connected to one side inside the dam body (1), and the rack (25) meshes with the gear (27).

6. A biological filter dam for treating marine aquaculture tailwater according to claim 1, characterized in that, A discharge box (30) is slidably connected to one side of the dam body (1), a support rod (15) is fixedly connected to the top of the discharge box (30), a top plate (5) is fixedly connected to the top of the support rod (15), and a water outlet trough (2) is opened on one side of the dam body (1).

7. A biological filter dam for treating marine aquaculture tailwater according to claim 6, characterized in that, The dam body (1) has a sliding groove two (29) on one side inside, and a slider three (28) is fixedly connected to one side of the outer wall of the discharge box (30). The outer wall of the slider three (28) is slidably connected inside the sliding groove two (29).

8. A biological filter dam for treating marine aquaculture tailwater according to claim 7, characterized in that, A motor three (33) is fixedly connected to one side inside the dam body (1). A sprocket one (32) is fixedly connected to the output end of the motor three (33). A sprocket two (34) is rotatably connected to one side inside the dam body (1). A chain (35) is meshed between the sprocket one (32) and the sprocket two (34). A fixing block (31) is fixedly connected to one side of the outer wall of the chain (35). The outer wall of the fixing block (31) is fixedly connected to one side of the outer wall of the discharge box (30).

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