A tail water resource utilization treatment device suitable for high-density aquaculture

Abstract

The application relates to the technical field of tail water treatment of aquaculture, and discloses a tail water resource utilization treatment device suitable for high-density aquaculture, which comprises a filter box, the inside of the filter box being provided with a filter plate with an inclined angle; a power mechanism for driving a moving plate to move inside the filter box and a support to move outside the filter box; a scraper movably arranged inside the support plate is gradually moved out, so that the scraper is always in contact with the filter plate to scrape sundries on the filter plate; and an extrusion box is fixedly communicated with the filter box, is used for collecting the scraped sundries, and drives a pressing plate to move in the extrusion box after the support moves, so that the sundries are extruded and formed. The tail water sundries are filtered through the filter plate, the power mechanism drives the support plate and the scraper to move from a high place to a low place to clean the sundries and send the sundries into the extrusion box, the pressing plate moves to the bottom to press and form when the scraper returns to the original position, the filtering efficiency and operation continuity are improved, the sundries are centrally collected and formed, the subsequent workload is reduced, and the secondary pollution risk is reduced.

Description

Technical Field

[0001] This invention relates to the field of aquaculture wastewater treatment technology, specifically to a wastewater resource utilization treatment device suitable for high-density aquaculture. Background Technology

[0002] High-density aquaculture is a modern aquaculture model that significantly increases yield per unit area or volume by raising large quantities of aquatic products in limited water areas or ponds. This method can meet the growing market demand for aquatic products while reducing the use of land resources.

[0003] However, the wastewater generated by high-density aquaculture contains a large amount of aquaculture residues, such as uneaten feed, fish feces, and microbial metabolic products. If this wastewater is discharged directly without treatment, it will lead to eutrophication of the water body and severely damage the surrounding aquatic ecosystem. At the same time, the organic matter and nutrients abundant in the wastewater, if effectively recovered and utilized, will have high resource value. Therefore, treating and utilizing wastewater is not only a requirement for protecting the ecological environment but also an important way to achieve resource recycling.

[0004] However, existing wastewater treatment technologies have certain shortcomings in practical applications. On the one hand, cleaning debris from filtration devices largely relies on manual operation, which can easily lead to low work efficiency and affect the continuity of treatment. On the other hand, after cleaning, debris cannot be centrally collected and efficiently compressed into shape, resulting in a large workload for subsequent treatment and increasing the risk of secondary pollution. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a wastewater resource utilization and treatment device suitable for high-density aquaculture, which solves the problems of low efficiency in manual cleaning of debris, inability to achieve centralized collection and pressing after cleaning, and increased secondary pollution in existing technologies.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a wastewater resource utilization and treatment device suitable for high-density aquaculture, comprising:

[0007] The filter box is equipped with a filter plate with an inclined angle for filtering the effluent. The filter box is connected to the sedimentation tank through a first transfer pump, and the sedimentation tank is connected to the aeration tank through a second transfer pump.

[0008] The power mechanism, located at the top of the filter box, is used to drive the movable plate to move inside the filter box and the support to move outside the filter box.

[0009] As the support plate moves along with the moving plate, the scraper inside the support plate gradually moves out, so that the scraper is always in contact with the filter plate to scrape away the debris on the filter plate.

[0010] The extrusion box, which is fixedly connected to the filter box, is used to collect the scraped debris. When the support moves, it drives the pressure plate to move inside the extrusion box, extruding the debris into shape.

[0011] Preferably, the power mechanism includes a motor, which is mounted on the top of one side of the filter box. The output end of the motor is fixedly connected to a screw, the bottom of which is rotatably connected to the middle of the top surface of the extrusion box. The outer wall of the screw is threadedly connected to a bracket. A bevel gear is fixedly connected to the top of the outer wall of the screw. A bevel gear is meshed with one side of the bevel gear. A screw is fixedly connected to the middle of the bevel gear. The screw is rotatably connected inside a guide cylinder, which is mounted on the top of the inner wall of the filter box. The outer wall of the screw is threadedly connected to a moving plate, which is slidably connected inside the guide cylinder.

[0012] Preferably, a base plate is installed at the bottom of the extrusion box, and an insert rod is movably provided at the bottom of the outer wall of the extrusion box. The insert rod passes through the extrusion box and is located inside the base plate. Several small holes are opened in the middle of the base plate to guide the liquid out when the pressure plate extrudes the impurities.

[0013] Preferably, a support frame is fixedly connected to one side of the filter plate, the support frame is connected to the filter box by fasteners, and a support bar is fixedly connected to the side wall of the inner wall of the filter box, the support bar being used to support the filter plate.

[0014] Preferably, one side of the filter box has an opening, the filter plate is located in the opening, and the other side of the filter box has an opening, the filter box is connected to the extrusion box through the opening.

[0015] Preferably, the input end of the first conveying pump is connected to the filter box, the output end of the first conveying pump is fixedly connected to a pipe, one side of the pipe is connected to a pipe, there are two sedimentation tanks, the first pipe is connected to one sedimentation tank, the second pipe is connected to the other sedimentation tank, and a solenoid valve is installed inside the first pipe, a solenoid valve is installed inside the second pipe, and both the solenoid valve and the solenoid valve are close to the sedimentation tank.

[0016] Preferably, the output end of the second conveying pump is connected to the aeration tank, and the two sedimentation tanks are connected by a third pipe. A third solenoid valve and a fourth solenoid valve are respectively installed on both sides of the third pipe. The middle of the third pipe is connected to the fourth pipe, which is connected to the input end of the second conveying pump.

[0017] Preferably, a filling pipe is connected to one side of the top surface of the sedimentation tank, the bottom surface of the inner wall of the sedimentation tank is provided with an inclined surface, a drain pipe is connected to the bottom of the sedimentation tank, and a valve is installed inside the drain pipe.

[0018] Preferably, a second motor is fixedly connected to the middle of the top surface of the sedimentation tank, a support block is fixedly connected to the output end of the second motor, sleeves are fixedly connected to both sides of the support block, a support arm is movably arranged inside the sleeve, a spring is sleeved on the outer wall of the support arm, the spring is inside the sleeve, and a lever is fixedly connected to the bottom of the support arm. The second motor is used to drive the lever to rotate, so that the tailwater inside the sedimentation tank rotates, and the centrifugal force of rotation gathers the impurities and places them at the bottom of the sedimentation tank.

[0019] Preferably, an air supply pipe is provided outside the aeration tank, and several air distribution pipes are connected to one side of the air supply pipe. Multiple aerators are installed inside the aeration tank, and the aerators are connected to the air supply pipe through the air distribution pipes.

[0020] This invention provides a wastewater resource utilization and treatment device suitable for high-density aquaculture. It has the following beneficial effects:

[0021] 1. This invention uses a filter plate to filter impurities in the effluent. A power mechanism drives the support plate and scraper to move from the higher side of the filter plate to the lower side. At this time, the scraper cleans the filter plate, allowing the impurities to enter the compression box. Meanwhile, the pressure plate moves to the top of the compression box. When the scraper returns to the higher side of the filter plate, the pressure plate moves to the bottom of the compression box, thereby compressing the impurities into shape. This improves filtration efficiency and continuous operation capability. At the same time, the impurities are collected and compressed into shape, which reduces the workload of subsequent treatment and effectively reduces the possibility of secondary pollution.

[0022] 2. This invention allows water to be supplied to one sedimentation tank by opening solenoid valve one and closing solenoid valve two. Conversely, closing solenoid valve one and opening solenoid valve two allows water to be supplied to another sedimentation tank. After the filtered effluent is treated in the sedimentation tank, opening solenoid valve three and closing solenoid valve four allows the effluent from one sedimentation tank to be supplied to the aeration tank. Conversely, closing solenoid valve three and opening solenoid valve four allows the effluent from another sedimentation tank to be supplied to the aeration tank. This enables continuous operation of the device, thereby improving the efficiency of effluent treatment.

[0023] 3. In this invention, treatment agents can be added to the sedimentation tank through the injection pipe. After driving the second motor, the support block and the lever can be rotated. The centrifugal force generated by the rotation of the lever can make the support arm slide inside the sleeve. At this time, after the lever comes into contact with the tailwater, it can drive the tailwater in the sedimentation tank to rotate. At this time, the sediment in the tailwater can be collected and accumulated at the bottom of the sedimentation tank. The collected sediment can be discharged by operating the drain pipe and valve set at the bottom of the sedimentation tank. At the same time, the inclined surface can further guide the sediment to the drain pipe outlet, avoiding the impact of sedimentation blockage on the discharge efficiency. This not only improves the efficiency of sedimentation separation in the tailwater treatment process, but also effectively reduces the manual operation intensity in the cleaning process, realizing the automated operation and efficient cleaning of the sedimentation tank.

[0024] 4. In this invention, gas can be supplied to the interior of the gas distribution pipe through the gas supply pipe. At this time, the gas can be discharged from the interior of the aerator, forming evenly distributed bubbles, which fully aerate and stir the tailwater in the aeration tank, increasing the dissolved oxygen content in the water, thereby providing sufficient oxygen conditions for subsequent biological treatment, and effectively promoting the oxidation and decomposition of pollutants in the water, further improving the purification efficiency of the tailwater. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0026] Figure 2 This is a schematic diagram of the filter box structure of the present invention;

[0027] Figure 3 This is a partial structural diagram of the filter plate of the present invention;

[0028] Figure 4 This is an exploded view of the scraper portion of the present invention;

[0029] Figure 5 This is a schematic diagram of the sedimentation tank structure of the present invention;

[0030] Figure 6 for Figure 5 Enlarged view of point A in the image;

[0031] Figure 7 This is a front sectional view of the sedimentation tank of the present invention;

[0032] Figure 8 This is an exploded view of the paddle portion of the present invention;

[0033] Figure 9 This is a schematic diagram of the two-part structure of the delivery pump of the present invention;

[0034] Figure 10 This is a schematic diagram of the aerator part of the present invention.

[0035] The components include: 1. Filter box; 2. Sedimentation tank; 3. Aeration tank; 4. Transfer pump one; 5. Transfer pump two; 6. Filter plate; 7. Power mechanism; 71. Motor one; 72. Screw one; 73. Bevel gear one; 74. Bevel gear two; 75. Screw two; 76. Guide cylinder; 8. Moving plate; 9. Support plate; 10. Scraper; 11. Bracket; 12. Pressure plate; 13. Extrusion box; 14. Base plate; 15. Insert rod; 16. Support frame; 17. Support 18. Opening 1; 19. Opening 2; 20. Pipe 1; 21. Pipe 2; 22. Solenoid Valve 1; 23. Solenoid Valve 2; 24. Filling Pipe; 25. Motor 2; 26. Support Block; 27. Sleeve; 28. Support Arm; 29. ​​Spring; 30. Paddle; 31. Pipe 3; 32. Pipe 4; 33. Solenoid Valve 3; 34. Solenoid Valve 4; 35. Inclined Surface; 36. Drain Pipe; 37. Air Supply Pipe; 38. Air Distribution Pipe; 39. Aerator. Detailed Implementation

[0036] The technical solutions in 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.

[0037] To better understand the present invention, the above content will be described in detail below with reference to specific embodiments.

[0038] Please see the appendix Figure 1 , Figure 3 and Figure 4 This invention provides a wastewater resource utilization treatment device suitable for high-density aquaculture, comprising: a filter box 1, which has a filter plate 6 installed inside with an inclined angle for filtering wastewater; the filter box 1 is connected to a sedimentation tank 2 via a first transfer pump 4, and the sedimentation tank 2 is connected to an aeration tank 3 via a second transfer pump 5; a power mechanism 7, located at the top of the filter box 1, for driving a moving plate 8 to move inside the filter box 1 and a support 11 to move outside the filter box 1; a support plate 9, which moves with the moving plate 8, and a scraper 10 movable inside the support plate 9 gradually moves out, so that the scraper 10 is always in contact with the filter plate 6 to scrape away debris on the filter plate 6; and a compression box 13, which is fixedly connected to the filter box 1 for collecting the scraped debris, and the support 11 moves to drive a pressure plate 12 to move inside the compression box 13 to compress the debris into shape.

[0039] In this invention, the filter box 1 is equipped with an inclined filter plate 6 for preliminary filtration of large particulate impurities in the effluent, ensuring that the water quality is more uniform and stable when the effluent enters the subsequent treatment stage. The filter box 1 is connected to the sedimentation tank 2 via a first pump 4, which can transport the filtered effluent to the sedimentation tank 2 for sedimentation treatment. The effluent treated in the sedimentation tank 2 is further transported to the aeration tank 3 via a second pump 5 for aeration treatment to complete the purification of the effluent.

[0040] The power mechanism 7 is located at the top of the filter box 1 and can move the scraper 10 by driving the movable plate 8 to slide inside the filter box 1. The scraper 10 gradually moves out of the support plate 9 as the support plate 9 moves, and always maintains contact with the surface of the filter plate 6 to clean the debris on the filter plate 6, ensuring that the filter plate 6 can operate for a long time without clogging. The cleaned debris is directly conveyed to the compression box 13 through the filter box 1;

[0041] As the support 11 moves outside the filter box 1, it drives the pressure plate 12 to slide inside the compression box 13, gradually compacting and shaping the collected debris. This simplifies the debris cleaning process, reduces the frequency of manual intervention, and improves the automation level of the device. By directly conveying the scraped debris to the compression box 13 for pressing and shaping, not only is centralized collection and spatial compression of debris achieved, but the risk of contamination during debris storage and transportation is also effectively reduced. At the same time, residual liquid in the debris can be discharged through small holes at the bottom of the compression box 13, further reducing the moisture content of the debris and improving the efficiency and convenience of subsequent treatment. By integrating cleaning, collection, and shaping into one unit, multi-stage treatment of wastewater generated by high-density aquaculture can be effectively achieved, realizing continuous operation of filtration, cleaning, collection, and shaping of debris, while significantly improving the efficiency of wastewater treatment and the reliability of device operation.

[0042] Please see the appendix Figure 1 and Figure 3 The power mechanism 7 includes a motor 71, which is mounted on the top of one side of the filter box 1. The output end of the motor 71 is fixedly connected to a screw 72. The bottom of the screw 72 is rotatably connected to the middle of the top surface of the extrusion box 13. The outer wall of the screw 72 is threadedly connected to the bracket 11. The top of the outer wall of the screw 72 is fixedly connected to a bevel gear 73. One side of the bevel gear 73 is meshed with a bevel gear 74. The middle of the bevel gear 74 is fixedly connected to a screw 75. The screw 75 is rotatably connected inside the guide cylinder 76. The guide cylinder 76 is mounted on the top of the inner wall of the filter box 1. The outer wall of the screw 75 is threadedly connected to a moving plate 8. The moving plate 8 is slidably connected inside the guide cylinder 76.

[0043] In this invention, the power mechanism 7 includes a motor 71, which is mounted on the top of one side of the filter box 1. Its output end is fixedly connected to a screw 72 to provide rotational power. The bottom of the screw 72 is rotatably connected to the middle of the top surface of the extrusion box 13, and its outer wall is threadedly connected to a support 11 to transmit power and allow the support 11 to move. A bevel gear 73 is fixedly connected to the top of the screw 72, and one side of the bevel gear 73 meshes with a second bevel gear 74 to form a stable transmission structure. A screw 75 is fixedly connected to the middle of the second bevel gear 74. The screw 75 is rotatably connected inside a guide cylinder 76 and fixed to a moving plate 8 via a threaded connection, further transmitting power to the moving plate 8. The guide cylinder 76 is mounted on the top inner wall of the filter box 1 to ensure that the movement direction of the screw 75 and the moving plate 8 is controlled. The moving plate 8 moves smoothly through the sliding connection of the guide cylinder 76. Driven by the rotation of screw 75, the moving plate 8 slides along the guide cylinder 76, thereby achieving precise driving of the scraper 10 and support plate 9 inside the filter box 1.

[0044] Please see the appendix Figure 3 The bottom of the extrusion box 13 is equipped with a base plate 14. A rod 15 is movably provided at the bottom of the outer wall of the extrusion box 13. The rod 15 passes through the extrusion box 13 and is located inside the base plate 14. Several small holes are opened in the middle of the base plate 14 to guide the liquid out when the pressure plate 12 extrudes the impurities.

[0045] In this invention, a base plate 14 is installed at the bottom of the extrusion box 13 to support and bear the extruded materials during the pressing process. The base plate 14 supports the stability of the extruded materials during the pressing process and provides a structural basis for the discharge of liquid. A rod 15 is movably installed at the bottom of the outer wall of the extrusion box 13. After being inserted into the extrusion box 13, the rod 15 extends into the interior of the base plate 14, serving to fix and stabilize the base plate 14. Several small holes are provided in the middle of the base plate 14. These small holes are used to guide the residual liquid squeezed out of the extruded materials during the extrusion molding process by the pressure plate 12, preventing the liquid from accumulating in the extrusion box 13. The small holes not only improve the dryness of the extruded materials after pressing, facilitating subsequent processing, but also prevent the retention of liquid from hindering the extrusion process. After pressing is completed, the base plate 14 can be removed from the extrusion box 13 by pulling out the rod 15, and the pressed extruded materials can be removed. The base plate 14 can be fixed by placing it back in the extrusion box 13 and then reinserting the rod 15.

[0046] Please see the appendix Figure 1 , Figure 2 and Figure 3A support frame 16 is fixedly connected to one side of the filter plate 6. The support frame 16 is connected to the filter box 1 by fasteners, and a support bar 17 is fixedly connected to the side wall of the inner wall of the filter box 1. The support bar 17 is used to support the filter plate 6. An opening 18 is opened on one side of the filter box 1, and the filter plate 6 is located in the opening 18. An opening 19 is opened on the other side of the filter box 1, and the filter box 1 is connected to the extrusion box 13 through the opening 19.

[0047] In this invention, a support frame 16 is fixedly connected to one side of the filter plate 6. The support frame 16 is firmly connected to the filter box 1 by fasteners, ensuring good stability of the filter plate 6 during operation. The support frame 16 not only facilitates the installation and disassembly of the filter plate 6, but also improves the convenience of maintenance. A support bar 17 is fixedly connected to the side wall of the inner wall of the filter box 1. The support bar 17 provides additional support for the filter plate 6, enhancing its ability to withstand the pressure of impurities during operation, ensuring its service life and filtration effect. One side of the filter box 1 has an opening 18, in which the filter plate 6 is located. This facilitates the collection of impurities on the surface of the filter plate 6 during filtration and provides convenience for the scraper 10 to clean the impurities. The other side of the filter box 1 has an opening 19, through which the filter box 1 communicates with the compression box 13, allowing impurities to be directly conveyed to the compression box 13 after being cleaned from the filter plate 6.

[0048] Please see the appendix Figure 1 , Figure 5 , Figure 6 and Figure 9 The input end of pump 4 is connected to filter box 1. The output end of pump 4 is fixedly connected to pipe 20. Pipe 21 is connected to one side of pipe 20. There are two sedimentation tanks 2. Pipe 20 is connected to one sedimentation tank 2, and pipe 21 is connected to the other sedimentation tank 2. Solenoid valve 22 is installed inside pipe 20, and solenoid valve 23 is installed inside pipe 21. Solenoid valves 22 and 23 are both close to sedimentation tank 2. The output end of pump 5 is connected to aeration tank 3. The two sedimentation tanks 2 are connected by pipe 31. Solenoid valves 33 and 44 are installed on both sides of pipe 31, and pipe 42 is connected to the middle of pipe 31. Pipe 432 is connected to the input end of pump 5.

[0049] In this invention, the input end of the transfer pump 4 is connected to the filter box 1 to receive the filtered effluent. The output end of the transfer pump 4 is fixedly connected to pipe 20, and one side of pipe 20 is connected to pipe 21, forming a diversion structure. Two sedimentation tanks 2 are configured, and pipes 20 and 21 are respectively connected to these two sedimentation tanks 2, distributing the effluent flow direction through the pipelines. To control the effluent flow direction, solenoid valve 22 is installed inside pipe 20, and solenoid valve 23 is installed inside pipe 21. Both solenoid valves are arranged close to the sedimentation tanks 2. When effluent needs to be injected into one of the sedimentation tanks 2, the corresponding solenoid valve can be opened and the other closed, thereby achieving flexible distribution of the effluent. The output end of the transfer pump 5 is connected to the aeration tank 3 to transport the sedimentation-treated effluent to the aeration tank 3 for further treatment. The two sedimentation tanks 2 are connected by pipe 31, and solenoid valves 33 and 34 are respectively installed on both sides of pipe 31 to control the connection between the sedimentation tanks 2 and the discharge of effluent. Pipe 31 is connected to pipe 4 32 in the middle, and pipe 4 32 is connected to the input end of transfer pump 5, forming a transport path from sedimentation tank 2 to aeration tank 3. Therefore, not only is the switching treatment of effluent between the two sedimentation tanks 2 achieved, but the synergistic effect of the transfer pump and pipeline also ensures continuous flow and efficient treatment of the effluent. The distributed control of the solenoid valves makes the diversion, transport, and switching of effluent more flexible, improving the continuous operation and treatment efficiency of the device.

[0050] Please see the appendix Figure 1 , Figure 5 , Figure 7 and Figure 8 A filling pipe 24 is connected to one side of the top surface of sedimentation tank 2. A slope 35 is provided on the bottom surface of the inner wall of sedimentation tank 2. A drain pipe 36 is connected to the bottom of sedimentation tank 2, and a valve is installed inside the drain pipe 36. A motor 25 is fixedly connected to the middle of the top surface of sedimentation tank 2. A support block 26 is fixedly connected to the output end of motor 25. Sleeves 27 are fixedly connected to both sides of support block 26. A support arm 28 is movably arranged inside the sleeve 27. A spring 29 is sleeved on the outer wall of the support arm 28 and is located inside the sleeve 27. A lever 30 is fixedly connected to the bottom of the support arm 28. Motor 25 is used to drive the lever 30 to rotate, so that the tailwater inside sedimentation tank 2 rotates. The centrifugal force of rotation gathers the impurities and makes them settle at the bottom of sedimentation tank 2.

[0051] In this invention, the injection pipe 24 is used to add flocculants or other treatment agents into the sedimentation tank 2. The bottom surface of the inner wall of the sedimentation tank 2 is provided with an inclined surface 35 to guide the sediment to accumulate at the bottom of the tank, ensuring that the sediment can be smoothly concentrated at the outlet of the drain pipe 36. The bottom of the sedimentation tank 2 is connected to the drain pipe 36, and a valve is installed inside the drain pipe 36 to control the discharge of sediment and treated wastewater.

[0052] Motor 25 is fixedly connected to the middle of the top surface of sedimentation tank 2. Support block 26 is fixedly connected to the output end of motor 25. Sleeves 27 are fixedly connected to both sides of support block 26. Support arm 28 is movably installed inside sleeve 27. Spring 29 is sleeved on the outer wall of support arm 28. Spring 29 is located inside sleeve 27 to provide elastic support. Paddle 30 is fixedly connected to the bottom of support arm 28. When motor 25 is started, support block 26 drives paddle 30 to rotate. After paddle 30 is subjected to centrifugal force, it will pull support arm 28 to slide inside sleeve 27. At this time, paddle 30 will contact the tail water and drive the tail water to rotate. After the tail water rotates and generates centrifugal force, the tail water inside sedimentation tank 2 can form a rotating flow. Under the action of rotating centrifugal force, the impurities in the tail water gradually gather to the bottom of sedimentation tank 2 and concentrate along the inclined surface 35 to the drain pipe 36. The accumulated sediment can be discharged through the valve, improving the effect of sediment cleaning.

[0053] Please see the appendix Figure 1 and Figure 10 An air supply pipe 37 is provided on the outside of the aeration tank 3. Several air distribution pipes 38 are connected to the side of the air supply pipe 37-20. Multiple aerators 39 are installed inside the aeration tank 3, and the aerators 39 are connected to the air supply pipe 37 through the air distribution pipes 38.

[0054] In this invention, one side of the air supply pipe 37 is connected to several air distribution pipes 38. The air distribution pipes 38 evenly distribute the airflow within the air supply pipe 37 to different areas of the aeration tank 3. Each aerator 39 is connected to the air distribution pipe 38, ensuring that air can be delivered to the aerator 39 through the air distribution pipe 38. At this time, the aerator 39 releases the airflow into fine bubbles, which are distributed in the water of the aeration tank 3. The bubbles form a uniform gas-liquid contact surface in the water, which not only agitates the water but also significantly increases the dissolved oxygen content in the water, providing good oxygen conditions for subsequent biological treatment, thereby further improving the efficiency and treatment effect of effluent purification.

[0055] Working principle: In use, the scraper 10 is in its initial state when it is on the higher side of the filter plate 6, and the pressure plate 12 is at the bottom of the squeezing box 13. Then, the tailwater is first added to the filter box 1 from the inlet. When the tailwater passes through the inclined filter plate 6, large particles in the tailwater will be blocked by the filter plate 6 to achieve preliminary filtration. When there are many impurities on the filter plate 6 and cleaning is required, the drive motor 71 drives the screw 72 to rotate. At this time, through the meshing of the bevel gear 73 and the bevel gear 74, the screw 75 can be rotated synchronously. When the screw 75 rotates, it can drive the moving plate 8 to move in the guide cylinder 76, and then drive the moving plate 8 to slide inside the filter box 1. At this time, the support plate 9 moves along the guide cylinder 76. As the filter plate 6 moves from the top of the high position to the top of the low position, the scraper 10 will gradually move out from inside the support plate 9 during the movement of the support plate 9, thus always sticking to the surface of the filter plate 6 to thoroughly scrape off the attached debris, and convey it to the extrusion box 13 through the opening of the filter box 1. At this time, the pressure plate 12 gradually moves to the bottom of the extrusion box 13 to forcefully press the debris that enters the extrusion box 13 into a block. During the pressing process, the residual liquid in the debris is discharged through the small holes on the bottom plate 14, thus realizing the centralized recycling of the debris. When the pressing is completed, the reverse motor 71 makes the scraper 10 return to the high position of the filter plate 6. At this time, the pressure plate 12 gradually moves to the top of the extrusion box 13 under the action of the power mechanism 7.

[0056] By opening solenoid valve 22 and closing solenoid valve 23, and then turning on transfer pump 4, the effluent after preliminary filtration can be pumped into a sedimentation tank 2. When it is necessary to switch sedimentation tank 2, solenoid valve 22 is closed and solenoid valve 23 is opened, and the effluent enters another sedimentation tank 2. After the effluent enters sedimentation tank 2, flocculant or other treatment agents can be injected into sedimentation tank 2 through injection pipe 24 to enhance the sedimentation effect. Then, motor 25 is started to drive support block 26 and lever 30 to rotate. When lever 30 rotates, it generates centrifugal force. The centrifugal force can cause lever 30 to drive support arm 28 to slide inside sleeve 27. At this time, spring 29 is compressed and lever 30 is close to the side wall of the inner wall of sedimentation tank 2. Lever 30 will come into contact with water. At this time, lever 30 can drive the effluent in sedimentation tank 2 to rotate. Using centrifugal force, the sediment can be quickly gathered to the bottom of sedimentation tank 2.

[0057] After the effluent treatment in sedimentation tank 2 is completed, the second transfer pump 5 is turned on to transfer the effluent in sedimentation tank 2 to aeration tank 3. When the third solenoid valve 33 is turned on and the fourth solenoid valve 34 is turned off, the effluent in one sedimentation tank 2 can be pumped into aeration tank 3. When the third solenoid valve 33 is turned off and the fourth solenoid valve 34 is turned on, the effluent in the other sedimentation tank 2 can be pumped into aeration tank 3. Therefore, through the cooperation of four solenoid valves and two transfer pumps, the effluent after treatment in the other sedimentation tank 2 can be pumped into aeration tank 3 while effluent is injected into one sedimentation tank 2. Thus, the continuous treatment of effluent by this device can be realized.

[0058] When the effluent enters the aeration tank 3, air is supplied through the air supply pipe 37 to the air distribution pipe 38. The air distribution pipe 38 allows the gas to be released through multiple aerators 39 to form bubbles. At this time, the bubbles are in full contact with the effluent in the aeration tank 3, and are stirred and aerated.

[0059] 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 wastewater resource utilization and treatment device suitable for high-density aquaculture, characterized in that, include: The filter box (1) is equipped with a filter plate (6) with an inclined angle for filtering the tailwater. The filter box (1) is connected to the sedimentation tank (2) through a first transfer pump (4). The sedimentation tank (2) is connected to the aeration tank (3) through a second transfer pump (5). The power mechanism (7), located at the top of the filter box (1), is used to drive the moving plate (8) to move inside the filter box (1) and the bracket (11) to move outside the filter box (1); After the support plate (9) moves along with the moving plate (8), the scraper (10) inside the support plate (9) gradually moves out, so that the scraper (10) always contacts the filter plate (6) to scrape off the debris on the filter plate (6); The extrusion box (13) is fixedly connected to the filter box (1) and is used to collect scraped debris. After the support (11) moves, it drives the pressure plate (12) to move in the extrusion box (13) to extrude the debris into shape. The power mechanism (7) includes a motor (71), which is installed on the top of one side of the filter box (1). The output end of the motor (71) is fixedly connected to a screw (72). The bottom of the screw (72) is rotatably connected to the middle of the top surface of the extrusion box (13). The outer wall of the screw (72) is threadedly connected to the bracket (11). The top of the outer wall of the screw (72) is fixedly connected to a bevel gear (73). The side of the bevel gear (73) is meshed with a bevel gear (74). The middle of the bevel gear (74) is fixedly connected to a screw (75). The screw (75) is rotatably connected inside the guide cylinder (76). The guide cylinder (76) is installed on the top of the inner wall of the filter box (1). The outer wall of the screw (75) is threadedly connected to a moving plate (8). The moving plate (8) is slidably connected inside the guide cylinder (76). A support frame (16) is fixedly connected to one side of the filter plate (6). The support frame (16) is connected to the filter box (1) by fasteners. A support bar (17) is fixedly connected to the side wall of the inner wall of the filter box (1). The support bar (17) is used to support the filter plate (6). A motor (25) is fixedly connected to the middle of the top surface of the sedimentation tank (2). A support block (26) is fixedly connected to the output end of the motor (25). A sleeve (27) is fixedly connected to both sides of the support block (26). A support arm (28) is movably arranged inside the sleeve (27). A spring (29) is sleeved on the outer wall of the support arm (28). The spring (29) is located inside the sleeve (27). A lever (30) is fixedly connected to the bottom of the support arm (28). The motor (25) is used to drive the lever (30) to rotate so that the tailwater inside the sedimentation tank (2) rotates. The centrifugal force of rotation gathers the debris and places the debris at the bottom of the sedimentation tank (2).

2. The wastewater resource utilization and treatment device suitable for high-density aquaculture according to claim 1, characterized in that, The bottom of the extrusion box (13) is equipped with a base plate (14), and a rod (15) is movably provided at the bottom of the outer wall of the extrusion box (13). The rod (15) passes through the extrusion box (13) and is located inside the base plate (14). Several small holes are provided in the middle of the base plate (14) to guide the liquid out when the pressure plate (12) extrudes the impurities.

3. The wastewater resource utilization and treatment device suitable for high-density aquaculture according to claim 1, characterized in that, The filter box (1) has an opening (18) on one side, and the filter plate (6) is located in the opening (18). The filter box (1) has an opening (19) on the other side, and the filter box (1) is connected to the extrusion box (13) through the opening (19).

4. The wastewater resource utilization and treatment device suitable for high-density aquaculture according to claim 1, characterized in that, The input end of the first pump (4) is connected to the filter box (1). The output end of the first pump (4) is fixedly connected to the first pipe (20). One side of the first pipe (20) is connected to the second pipe (21). There are two sedimentation tanks (2). The first pipe (20) is connected to one sedimentation tank (2), and the second pipe (21) is connected to the other sedimentation tank (2). The first pipe (20) is equipped with a solenoid valve (22), and the second pipe (21) is equipped with a solenoid valve (23). The first solenoid valve (22) and the second solenoid valve (23) are both close to the sedimentation tank (2).

5. A wastewater resource utilization and treatment device suitable for high-density aquaculture according to claim 4, characterized in that, The output end of the second pump (5) is connected to the aeration tank (3), and the two sedimentation tanks (2) are connected through a pipe (31). A solenoid valve (33) and a solenoid valve (4) are installed on both sides of the pipe (31). A pipe (4) (32) is connected to the middle of the pipe (31). The pipe (4) (32) is connected to the input end of the second pump (5).

6. A wastewater resource utilization and treatment device suitable for high-density aquaculture according to claim 5, characterized in that, A filling pipe (24) is connected to one side of the top surface of the sedimentation tank (2), and a slope (35) is provided on the bottom surface of the inner wall of the sedimentation tank (2). A drain pipe (36) is connected to the bottom of the sedimentation tank (2), and a valve is installed inside the drain pipe (36).

7. The wastewater resource utilization and treatment device suitable for high-density aquaculture according to claim 1, characterized in that, An air supply pipe (37) is provided outside the aeration tank (3). Several air distribution pipes (38) are connected to one side of the air supply pipe (37). Multiple aerators (39) are installed inside the aeration tank (3), and the aerators (39) are connected to the air supply pipe (37) through the air distribution pipes (38).

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