Tail water resource utilization treatment device suitable for high-density aquaculture

Abstract

The invention relates to the technical field of aquaculture tail water treatment, and discloses a tail water resource utilization treatment device suitable for high-density aquaculture, which comprises: a filter box, which is internally provided with a filter plate with an inclination angle; the power mechanism is used for driving the moving plate to move inside the filter box and the bracket to move outside the filter box; a scraping plate movably arranged in the supporting plate is gradually moved out, so that the scraping plate is always in contact with the filtering plate to scrape impurities on the filtering plate; and the extrusion box fixedly communicates with the filter box and is used for collecting the scraped sundries, and the support moves to drive the pressing plate to move in the extrusion box so as to extrude and form the sundries. Tail water impurities are filtered through the filter plate, the power mechanism drives the support plate and the scraper to move from a high position to a low position to clean the impurities and send the impurities into the extrusion box, the pressing plate moves to the bottom when the scraper returns to the original position, the filter efficiency and the operation continuity are improved, centralized collection and forming of the impurities are achieved, the follow-up workload is reduced, and the risk of secondary pollution is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of aquaculture tail water treatment, in particular to a tail water resource utilization treatment device suitable for high-density aquaculture. Background Art

[0002] High-density aquaculture is a modern aquaculture model that greatly increases the production per unit area or volume by cultivating a large number of aquatic products in limited waters or breeding ponds. This breeding method can meet the growing market demand for aquatic products while reducing the occupation of land resources.

[0003] However, the tailwater produced by high-density aquaculture contains a large amount of aquaculture residues, such as bait residues, fish feces and microbial metabolites. If these tailwaters are discharged directly without treatment, it will lead to eutrophication of the water body and seriously damage the surrounding water ecological environment. At the same time, if the organic matter and nutrients rich in tailwater can be effectively recycled, they will have a high resource value. Therefore, the treatment and resource utilization of tailwater is not only a need to protect the ecological environment, but also an important way to achieve resource recycling.

[0004] However, the existing tailwater treatment technology has certain shortcomings in practical applications. On the one hand, the cleaning of debris in the filter device mostly relies on manual operation, which easily leads to low work efficiency and affects the continuity of treatment. On the other hand, after the debris is cleaned, it is impossible to collect it in a centralized manner and press it into a high-efficiency shape, resulting in a large workload for subsequent treatment and increasing the risk of secondary pollution. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a tail water resource utilization and treatment device suitable for high-density aquaculture, which solves the problems in the prior art of low efficiency of manual cleaning of debris, inability to achieve centralized collection and pressing after cleaning, and increased secondary pollution.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a tail water resource utilization treatment device suitable for high-density aquaculture, comprising:

[0007] A filter box, inside which a filter plate with an inclined angle is installed, for filtering tail water, the filter box is connected to the sedimentation tank through a delivery pump 1, and the sedimentation tank is connected to the aeration tank through a delivery pump 2;

[0008] A power mechanism, which is located on the top of the filter box and is used to drive the moving plate to move inside the filter box and the bracket to move outside the filter box;

[0009] The support plate moves with the moving plate, and the scraper movably arranged inside the support plate gradually moves out, so that the scraper is always in contact with the filter plate to scrape the debris on the filter plate;

[0010] The extrusion box is fixedly connected with the filter box and is used for collecting scraped debris. When the bracket moves, it drives the pressing plate to move in the extrusion box to extrude the debris into shape.

[0011] Preferably, the power mechanism includes a motor 1, which is installed at the top of one side of the filter box, and the output end of the motor 1 is fixedly connected to a screw 1, the bottom of the screw 1 is rotatably connected to the middle of the top surface of the extrusion box, the outer wall of the screw 1 is threadedly connected to the bracket, the top of the outer wall of the screw 1 is fixedly connected to a bevel gear 1, one side of the bevel gear 1 is meshingly connected to a bevel gear 2, the middle of the bevel gear 2 is fixedly connected to a screw 2, the screw 2 is rotatably connected in a guide cylinder, the guide cylinder is installed on the top of the inner wall of the filter box, and the outer wall of the screw 2 is threadedly connected to a movable plate, and the movable plate is slidably connected in the guide cylinder.

[0012] Preferably, a bottom plate is installed at the bottom of the squeezing box, and a plug rod is movably provided at the bottom of the outer wall of the squeezing box. The plug rod tube passes through the squeezing box and is located inside the bottom plate, and a plurality of small holes are opened in the middle of the bottom plate to guide the liquid to flow out when the pressure plate squeezes the debris.

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

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

[0015] Preferably, the input end of the delivery pump 1 is connected to the filter box, the output end of the delivery pump 1 is fixedly connected to tube 1, one side of the tube 1 is connected to tube 2, two sedimentation tanks are provided, and tube 1 and tube 2 are respectively connected to the two sedimentation tanks, and solenoid valve 1 is installed inside the tube 1, solenoid valve 2 is installed inside the tube 2, and both solenoid valve 1 and solenoid valve 2 are close to the sedimentation tank.

[0016] Preferably, the output end of the delivery pump 2 is connected to the aeration tank, and the two sedimentation tanks are connected through a pipe 3, solenoid valve 3 and solenoid valve 4 are respectively installed on both sides of the pipe 3, the middle of the pipe 3 is connected to the pipe 4, and the pipe 4 is connected to the input end of the delivery pump 2.

[0017] Preferably, one side of the top surface of the sedimentation tank is connected to a filling pipe, the bottom surface of the inner wall of the sedimentation tank is provided with a slope, the bottom of the sedimentation tank is connected to a drain pipe, 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 provided inside the sleeve, a spring is sleeved on the outer wall of the support arm, the spring is in the sleeve, a paddle is fixedly connected to the bottom of the support arm, and the second motor is used to drive the paddle to rotate to rotate the tail water inside the sedimentation tank, and the debris is gathered by the rotating centrifugal force and is located at the bottom of the sedimentation tank.

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

[0020] The invention provides a tail water resource utilization treatment device suitable for high-density aquaculture.

[0021] It has the following beneficial effects:

[0022] 1. The present invention can filter the debris in the tail water through the filter plate, and the power mechanism can drive the support plate and the scraper to move from the higher side of the filter plate to the lower side. At this time, the scraper can clean the filter plate to make the debris enter the extrusion box, and the pressing plate moves to the top of the extrusion box. When the scraper returns to the higher side of the filter plate, the pressing plate moves to the bottom of the extrusion box, and then the debris can be extruded into shape, thereby improving the filtering efficiency and continuous operation capability. At the same time, the debris can be collected and pressed into shape, which can reduce the workload of subsequent processing and effectively reduce the possibility of secondary pollution.

[0023] 2. The present invention opens solenoid valve one and closes solenoid valve two, and can supply water to one sedimentation tank. By closing solenoid valve one and opening solenoid valve two, water can be supplied to another sedimentation tank. After the filtered tail water is treated in the sedimentation tank, the tail water in one sedimentation tank can be supplied to the aeration tank by opening solenoid valve three and closing solenoid valve four, and the tail water in another sedimentation tank can be supplied to the aeration tank by closing solenoid valve three and opening solenoid valve four. In this way, the device can be operated continuously, thereby improving the efficiency of tail water treatment.

[0024] 3. In the present invention, the treatment agent can be added to the sedimentation tank through the filling pipe. After driving the motor 2, the support block and the paddle can be driven to rotate. The centrifugal force generated by the rotation of the paddle can be used to make the support arm slide inside the sleeve. At this time, after the paddle contacts the tail water, the tail water in the sedimentation tank can be driven to rotate. At this time, the sediment in the tail water can be gathered and accumulated on the inner bottom of the sedimentation tank. The gathered sediment can be discharged through the coordinated operation of the drain pipe and valve arranged at the bottom of the sedimentation tank. At the same time, the sediment can be further guided to flow to the drain pipe outlet through the inclined surface to avoid sedimentation blockage affecting the discharge efficiency. This not only improves the efficiency of sedimentation separation in the tail water treatment process, but also effectively reduces the intensity of manual operation in the cleaning process, thereby realizing the automatic operation and efficient cleaning of the sedimentation tank.

[0025] 4. In the present invention, gas can be supplied to the inside of the gas distribution pipe through the gas supply pipe. At this time, the gas can be discharged from the inside of the aerator to form evenly distributed bubbles, so as to fully aerate and stir the tail water in the aeration tank, increase the dissolved oxygen content in the water body, thereby providing sufficient oxygen conditions for subsequent biological treatment, and effectively promoting the oxidation and decomposition of pollutants in the water body, further improving the purification efficiency of the tail water. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0027] Figure 2 It is a partial structural schematic diagram of the filter box of the present invention;

[0028] Figure 3 This is a partial structural exploded view of the filter plate of the present invention;

[0029] Figure 4 This is a disassembled diagram of the scraper structure of the present invention;

[0030] Figure 5 It is a partial structural schematic diagram of a sedimentation tank of the present invention;

[0031] Figure 6 for Figure 5 A in the enlarged view;

[0032] Figure 7 It is a front cross-sectional view of the sedimentation tank of the present invention;

[0033] Figure 8 This is a disassembled diagram of the structure of the plectrum of the present invention;

[0034] Fig. 9 It is a schematic diagram of the two-part structure of the delivery pump of the present invention;

[0035] Fig.10 It is a partial structural schematic diagram of the aerator of the present invention.

[0036] Among them, 1. filter box; 2. sedimentation tank; 3. aeration tank; 4. delivery pump 1; 5. delivery pump 2; 6. filter plate; 7. power mechanism; 71. motor 1; 72. screw 1; 73. bevel gear 1; 74. bevel gear 2; 75. screw 2; 76. guide cylinder; 8. moving plate; 9. support plate; 10. scraper; 11. bracket; 12. pressure plate; 13. extrusion box; 14. bottom plate; 15. plug rod; 16. support frame; 17. support strip; 18, opening one; 19, opening two; 20, tube one; 21, tube two; 22, solenoid valve one; 23, solenoid valve two; 24, filling pipe; 25, motor two; 26, support block; 27, sleeve; 28, support arm; 29, spring; 30, paddle; 31, tube three; 32, tube four; 33, solenoid valve three; 34, solenoid valve four; 35, inclined plane; 36, drain pipe; 37, air supply pipe; 38, air distribution pipe; 39, aerator. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] In order to better understand the present invention, the above contents are described in detail below in conjunction with specific embodiments.

[0039] Please refer to the attached Figure 1 , Figure 3 and Figure 4 The embodiment of the present invention provides a tailwater resource utilization and treatment device suitable for high-density aquaculture, comprising: a filter box 1, in which a filter plate 6 with an inclined angle is installed for filtering tailwater, the filter box 1 is connected with a sedimentation tank 2 through a delivery pump 1 4, and the sedimentation tank 2 is connected with an aeration tank 3 through a delivery pump 2 5; a power mechanism 7, which is located at the top of the filter box 1, and is used to drive a movable plate 8 to move inside the filter box 1, and a bracket 11 to move outside the filter box 1; a support plate 9, after which the scraper 10 movably arranged inside the support plate 9 is gradually moved out, so that the scraper 10 is always in contact with the filter plate 6 to scrape off the debris on the filter plate 6; an extrusion box 13, which is fixedly connected with the filter box 1, and is used to collect the scraped debris, and after the bracket 11 moves, it drives the pressing plate 12 to move in the extrusion box 13 to extrude and shape the debris.

[0040] In the present invention, a filter plate 6 with an inclined angle is installed inside the filter box 1, which is used to perform preliminary filtration of large particles of debris in the tail water, ensuring that the water quality of the tail water is more uniform and stable when it enters the subsequent treatment link. The filter box 1 is connected to the sedimentation tank 2 through a delivery pump 1 4, and the delivery pump 1 4 can deliver the filtered tail water to the sedimentation tank 2 for sedimentation treatment; the tail water treated in the sedimentation tank 2 is further delivered to the aeration tank 3 through a delivery pump 2 5 for aeration treatment to complete the purification of the tail water;

[0041] The power mechanism 7 is located at the top of the filter box 1, and can drive the moving plate 8 to slide inside the filter box 1 to realize the movement of the scraper 10. The scraper 10 gradually moves out of the support plate 9 as the support plate 9 moves, and always keeps in 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 run for a long time without clogging. The cleaned debris is directly transported to the squeeze box 13 through the filter box 1;

[0042] While the bracket 11 moves outside the filter box 1, it drives the pressing plate 12 to slide inside the extrusion box 13, and the collected debris is gradually compacted and formed. Therefore, the debris cleaning process is simplified, the frequency of manual intervention is reduced, and the automation level of the device is improved. By directly conveying the scraped debris to the extrusion box 13 and pressing and forming it, not only the centralized collection and spatial compression of the debris are achieved, but also the pollution risk during the storage and transportation of the debris is effectively reduced. At the same time, the residual liquid in the debris can be discharged through the small holes at the bottom of the extrusion box 13, further reducing the water content of the debris and improving the efficiency and convenience of subsequent processing. By integrating cleaning, collection, and forming, the tail water generated by high-density aquaculture can be effectively treated in multiple stages, and the continuous operation of filtering, cleaning, collecting, and forming the debris can be realized, while significantly improving the efficiency of tail water treatment and the reliability of device operation.

[0043] Please refer to the attached 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, and 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, and 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 meshedly connected to a bevel gear 2 74, and the middle part of the bevel gear 2 74 is fixedly connected to a screw 2 75, and the screw 2 75 is rotatably connected in a guide cylinder 76, which is mounted on the top of the inner wall of the filter box 1, and the outer wall of the screw 2 75 is threadedly connected to a movable plate 8, and the movable plate 8 is slidably connected in the guide cylinder 76.

[0044] In the present invention, the power mechanism 7 includes a motor 71, which is installed at the top of one side of the filter box 1, and its output end is fixedly connected to a screw 72 for providing rotational power. The bottom of the screw 72 is rotatably connected to the middle of the top surface of the extrusion box 13, and is threadedly connected to the bracket 11 through its outer wall to achieve power transmission and movement of the bracket 11. The top of the screw 72 is fixedly connected to a bevel gear 73, and one side of the bevel gear 73 is meshed and connected with a bevel gear 2 74 to form a stable transmission structure. The middle part of the bevel gear 2 74 is fixedly connected to a screw 2 75, which is rotatably connected in a guide cylinder 76 and fixed to the mobile plate 8 through a threaded connection, so that the power is further transmitted to the mobile plate 8. The guide cylinder 76 is installed on the top inner wall of the filter box 1 to ensure that the movement direction of the screw 2 75 and the mobile plate 8 is controlled, and the mobile plate 8 is smoothly moved by the sliding connection of the guide cylinder 76. Driven by the rotation of the second screw 75 , the movable plate 8 slides along the guide cylinder 76 , thereby realizing accurate driving of the scraper 10 and the support plate 9 inside the filter box 1 .

[0045] Please refer to the attached Figure 3 A bottom plate 14 is installed at the bottom of the squeezing box 13, and a plug rod 15 is movably provided at the bottom of the outer wall of the squeezing box 13. The plug rod 15 passes through the squeezing box 13 and is located inside the bottom plate 14. A plurality of small holes are opened in the middle of the bottom plate 14 to guide the liquid to flow out when the pressing plate 12 squeezes the debris.

[0046] In the present invention, a bottom plate 14 is installed at the bottom of the extrusion box 13 for carrying and supporting the pressing process of the sundries. The bottom plate 14 can support the stability of the sundries during the pressing process and provide a structural basis for the discharge of the liquid. A plug rod 15 is movably provided at the bottom of the outer wall of the extrusion box 13. After being inserted into the extrusion box 13, the plug rod 15 extends to the inside of the bottom plate 14 to fix and stabilize the bottom plate 14. A number of small holes are opened in the middle of the bottom plate 14. These small holes are used to guide the residual liquid squeezed out of the sundries to flow out when the pressing plate 12 extrudes the sundries to prevent the liquid from accumulating in the extrusion box 13. Through the small holes, not only can the dryness of the sundries after pressing be improved, which is convenient for subsequent processing, but also the retention of liquid can be avoided to hinder the extrusion process. After the pressing is completed, the bottom plate 14 can be taken out of the extrusion box 13 by pulling out the plug rod 15, and the sundries pressed and formed can be taken out. The bottom plate 14 can be fixed by re-placing the bottom plate 14 into the bottom plate 14 and reinserting the plug rod 15.

[0047] Please refer to the attached Figure 1 , Figure 2 and Figure 3A support frame 16 is fixedly connected to one side of the filter plate 6, and the support frame 16 is connected to the filter box 1 through a fastener, and a support bar 17 is fixedly connected to the side wall of the inner wall of the filter box 1, and 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 2 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 2 19.

[0048] In the present invention, a support frame 16 is fixedly connected to one side of the filter plate 6, and the support frame 16 is firmly connected to the filter box 1 through fasteners, ensuring that the filter plate 6 has good stability during operation. The setting of the support frame 16 not only facilitates the installation and removal of the filter plate 6, but also improves the convenience of maintenance. The side wall of the inner wall of the filter box 1 is fixedly connected with a support bar 17, which provides additional support for the filter plate 6, enhances the ability of the filter plate 6 to withstand the pressure of debris during operation, and ensures its service life and filtering effect. An opening 18 is provided on one side of the filter box 1, and the filter plate 6 is located in the opening 18, so that it is convenient for the debris to be concentrated on the surface of the filter plate 6 during the filtering process, and it is convenient for the scraper 10 to clean the debris. An opening 2 19 is provided on the other side of the filter box 1, and the filter box 1 is connected to the squeeze box 13 through the opening 2 19, so that the debris is directly transported to the squeeze box 13 after being cleaned from the filter plate 6.

[0049] Please refer to the attached Figure 1 , Figure 5 , Figure 6 and Fig. 9 The input end of the delivery pump 1 4 is connected to the filter box 1, and the output end of the delivery pump 1 4 is fixedly connected to the pipe 1 20, and one side of the pipe 1 20 is connected to the pipe 2 21. There are two sedimentation tanks 2, and the pipe 1 20 and the pipe 2 21 are respectively connected to the two sedimentation tanks 2, and the solenoid valve 1 22 is installed inside the pipe 1 20, and the solenoid valve 2 23 is installed inside the pipe 21, and the solenoid valve 1 22 and the solenoid valve 2 23 are close to the sedimentation tank 2. The output end of the delivery pump 2 5 is connected to the aeration tank 3, and the two sedimentation tanks 2 are connected through a pipe 3 31, and the two sides of the pipe 3 31 are respectively installed with the solenoid valve 3 33 and the solenoid valve 4 34, and the middle of the pipe 3 31 is connected with the pipe 4 32, and the pipe 4 32 is connected to the input end of the delivery pump 2 5.

[0050] In the present invention, the input end of the delivery pump 1 4 is connected to the filter box 1 for receiving the filtered tail water. The output end of the delivery pump 1 4 is fixedly connected to the pipe 1 20, and one side of the pipe 1 20 is connected to the pipe 2 21 to form a diversion structure. There are two sedimentation tanks 2, and the pipe 1 20 and the pipe 2 21 are respectively connected to the two sedimentation tanks 2, and the flow direction of the tail water is distributed through the pipeline. In order to control the flow direction of the tail water, a solenoid valve 1 22 is installed inside the pipe 1 20, and a solenoid valve 2 23 is installed inside the pipe 2 21, and both solenoid valves are arranged close to the sedimentation tank 2. When it is necessary to inject tail water into one of the sedimentation tanks 2, the corresponding solenoid valve can be opened and the other can be closed, so as to realize the flexible distribution of tail water, and the output end of the delivery pump 2 5 is connected to the aeration tank 3, which is used to transport the tail water after sedimentation treatment to the aeration tank 3 for subsequent treatment. The two sedimentation tanks 2 are connected through the pipe 3 31, and the solenoid valve 3 33 and the solenoid valve 4 34 are respectively installed on both sides of the pipe 3 31 to control the connection between the sedimentation tanks 2 and the discharge of tail water. The middle of pipe three 31 is connected to pipe four 32, and pipe four 32 is connected to the input end of delivery pump two 5, forming a delivery passage from sedimentation tank 2 to aeration tank 3. Therefore, not only the switching treatment of tail water between two sedimentation tanks 2 is realized, but also the continuous flow and efficient treatment of tail water are ensured through the synergy of delivery pump and pipeline. The distributed control of electromagnetic valve makes the diversion, delivery and switching of tail water more flexible, and improves the continuous operation and treatment efficiency of the device.

[0051] Please refer to the attached Figure 1 , Figure 5 , Figure 7 and Figure 8 A filling pipe 24 is connected to one side of the top surface of the sedimentation tank 2, an inclined surface 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. 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, sleeves 27 are fixedly connected to both sides of the support block 26, a support arm 28 is movably provided inside the sleeve 27, a spring 29 is sleeved on the outer wall of the support arm 28, the spring 29 is in the sleeve 27, a paddle 30 is fixedly connected to the bottom of the support arm 28, and the motor 25 is used to drive the paddle 30 to rotate to rotate the tail water inside the sedimentation tank 2, and the debris is gathered by the rotating centrifugal force so that it is at the bottom of the sedimentation tank 2.

[0052] In the present invention, the filling 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, which is used to guide the sediment to gather 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 tail water;

[0053] The middle part of the top surface of the sedimentation tank 2 is fixedly connected to the motor 25, and the output end of the motor 25 is fixedly connected to the support block 26. The two sides of the support block 26 are respectively fixedly connected to the sleeve 27. The sleeve 27 is movably provided with a support arm 28. The outer wall of the support arm 28 is sleeved with a spring 29. The spring 29 is in the sleeve 27 for providing elastic support. The bottom of the support arm 28 is fixedly connected to the paddle 30. When the motor 25 is started, the support block 26 drives the paddle 30 to rotate. After the paddle 30 is subjected to centrifugal force, it will pull the support arm 28 to slide in the sleeve 27. At this time, the paddle 30 will contact the tail water and drive the tail water to rotate. After the tail water rotates to generate centrifugal force, the tail water inside the sedimentation tank 2 can form a rotating flow. Under the action of the rotating centrifugal force, the debris in the tail water gradually gathers to the bottom of the sedimentation tank 2 and is concentrated to the outlet of the drain pipe 36 along the inclined surface 35. The accumulated sediment can be discharged through the valve, thereby improving the effect of sediment cleaning.

[0054] Please see attached Figure 1 and Fig.10 An air supply pipe 37 is arranged outside the aeration tank 3, and a plurality of air branch pipes 38 are connected to the air supply pipe 37-20 side. A plurality of aerators 39 are installed inside the aeration tank 3, and the aerators 39 are connected to the air supply pipe 37 through the air branch pipes 38.

[0055] In the present invention, one side of the air supply pipe 37 is connected to a plurality of air distribution pipes 38, and the air distribution pipes 38 evenly distribute the airflow in the air supply pipe 37 to different areas of the aeration tank 3, and each aerator 39 is connected to the air distribution pipe 38, which can ensure that the air can be transported to the aerator 39 through the air distribution pipe 38, and the aerator 39 releases the airflow into fine bubbles, which are distributed in the water body of the aeration tank 3. The bubbles form a uniform gas-liquid contact surface in the water, which not only stirs the water body, but also significantly increases the dissolved oxygen content in the water body, providing good oxygen conditions for subsequent biological treatment, thereby further improving the efficiency and treatment effect of tail water purification.

[0056] Working principle: When in use, the scraper 10 is at the higher side of the filter plate 6, which is the initial state of the scraper 10, and the pressure plate 12 is at the bottom of the extrusion box 13 at this time. Then, the tail water is first added to the filter box 1 from the inlet of the filter box 1. After the tail water passes through the inclined filter plate 6, the large particles of debris in the tail water will be blocked by the filter plate 6 to achieve preliminary filtration. When there are many debris on the filter plate 6 that need to be cleaned, the drive motor 1 71 drives the screw 1 72 to rotate. At this time, through the meshing of the bevel gear 1 73 and the bevel gear 2 74, the screw 2 75 can be synchronously driven to rotate. When the screw 2 75 rotates, it can drive the movable plate 8 to move in the guide cylinder 76, and then drive the movable plate 8 to slide inside the filter box 1, and at this time the support plate 9 is along The filter plate 6 moves from the upper part of the high part to the upper part of the low part. Therefore, the scraper 10 will gradually move out from the inside of the support plate 9 during the movement of the support plate 9, and then always close to the surface of the filter plate 6, completely scrape off the attached debris, and transport it to the squeeze box 13 through the opening of the filter box 1. At this time, the pressing plate 12 gradually moves to the inner bottom of the squeeze box 13, and strongly presses the debris entering the squeeze box 13 to form a block. During the pressing process, the residual liquid in the debris is discharged through the small holes on the bottom plate 14. At this time, the centralized recovery and processing of the debris is realized. 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 pressing plate 12 gradually moves to the top of the squeeze box 13 under the action of the power mechanism 7;

[0057] By opening the solenoid valve 1 22 and closing the solenoid valve 2 23, and then opening the delivery pump 1 4, the tail water after the preliminary filtration can be sent to a sedimentation tank 2 through the delivery pump 1 4. When it is necessary to switch the sedimentation tank 2, the solenoid valve 1 22 is closed and the solenoid valve 2 23 is opened, and the tail water enters another sedimentation tank 2. After the tail water enters the sedimentation tank 2, flocculants or other treatment agents can be injected into the sedimentation tank 2 through the filling pipe 24 to enhance the sedimentation effect. Then, the motor 2 25 is started to drive the support block 26 and the paddle 30 to rotate. When the paddle 30 rotates, centrifugal force is generated. The centrifugal force generated can drive the support arm 28 to slide inside the sleeve 27. At this time, the spring 29 is compressed and the paddle 30 is close to the side wall of the inner wall of the sedimentation tank 2, and the paddle 30 will contact the water. At this time, the paddle 30 can drive the tail water in the sedimentation tank 2 to rotate, and the sediment can be quickly gathered to the bottom of the sedimentation tank 2 by using the centrifugal force.

[0058] When the tail water treatment in the sedimentation tank 2 is completed, the delivery pump 2 5 is opened at this time, and the tail water in the sedimentation tank 2 can be delivered to the aeration tank 3, and when the solenoid valve 3 33 is opened and the solenoid valve 4 34 is closed, the tail water in one sedimentation tank 2 can be pumped into the aeration tank 3, and when the solenoid valve 3 33 is closed and the solenoid valve 4 34 is opened, the tail water in another sedimentation tank 2 can be pumped into the aeration tank 3. Therefore, through the cooperation of four solenoid valves and two delivery pumps, when the tail water is injected into one sedimentation tank 2, the tail water after the treatment in another sedimentation tank 2 can be pumped into the aeration tank 3, so that the device can realize continuous treatment of tail water;

[0059] When the tail water enters the aeration tank 3, the air is sent into the air distribution pipe 38 through the air supply pipe 37 by the air supply equipment. The gas can be released through multiple aerators 39 through the air distribution pipe 38 to form bubbles. At this time, the bubbles are in full contact with the tail water in the aeration tank 3 for stirring and aeration treatment.

[0060] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tailwater resource utilization treatment device suitable for high-density aquaculture, characterized in that: include: A filter box (1) is provided with a filter plate (6) with an inclined angle installed therein for filtering tail water. The filter box (1) is connected to a sedimentation tank (2) via a first delivery pump (4), and the sedimentation tank (2) is connected to an aeration tank (3) via a second delivery pump (5); A power mechanism (7) is located at the top of the filter box (1) and 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); The support plate (9) moves with the moving plate (8), and the scraper (10) movably arranged inside the support plate (9) gradually moves out, so that the scraper (10) is always in contact with 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. When the bracket (11) moves, it drives the pressing plate (12) to move in the extrusion box (13) to extrude the debris into shape.

2. The tailwater resource utilization treatment device suitable for high-density aquaculture according to claim 1 is characterized in that: The power mechanism (7) comprises a motor 1 (71), the motor 1 (71) being mounted on the top of one side of the filter box (1), the output end of the motor 1 (71) being fixedly connected to a screw 1 (72), the bottom of the screw 1 (72) being rotatably connected to the middle of the top surface of the extrusion box (13), the outer wall of the screw 1 (72) being threadedly connected to the bracket (11), the top of the outer wall of the screw 1 (72) being fixedly connected to a bevel gear 1 (73), one side of the bevel gear 1 (73) being meshingly connected to a bevel gear 2 (74), the middle of the bevel gear 2 (74) being fixedly connected to a screw 2 (75), the screw 2 (75) being rotatably connected to a guide cylinder (76), the guide cylinder (76) being mounted on the top of the inner wall of the filter box (1), the outer wall of the screw 2 (75) being threadedly connected to a movable plate (8), the movable plate (8) being slidably connected to the guide cylinder (76).

3. The tailwater resource utilization treatment device suitable for high-density aquaculture according to claim 1 is characterized in that: A bottom plate (14) is installed at the bottom of the squeezing box (13), and a plug rod (15) is movably provided at the bottom of the outer wall of the squeezing box (13). The plug rod (15) passes through the squeezing box (13) and is located inside the bottom plate (14). A plurality of small holes are opened in the middle of the bottom plate (14) for guiding liquid to flow out when the pressing plate (12) squeezes the debris.

4. The tailwater resource utilization treatment device suitable for high-density aquaculture according to claim 1 is characterized in that: 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) via a fastener, 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) being used to support the filter plate (6).

5. The tail water resource utilization treatment device suitable for high-density aquaculture according to claim 1 is characterized in that: One side of the filter box (1) is provided with an opening (18), the filter plate (6) is located in the opening (18), and the other side of the filter box (1) is provided with an opening (19), the filter box (1) is connected to the extrusion box (13) through the opening (19).

6. The tail water resource utilization treatment device suitable for high-density aquaculture according to claim 1 is characterized in that: The input end of the delivery pump 1 (4) is connected to the filter box (1), and the output end of the delivery pump 1 (4) is fixedly connected to a pipe 1 (20), and one side of the pipe 1 (20) is connected to a pipe 2 (21). Two sedimentation tanks (2) are provided, and the pipe 1 (20) and the pipe 2 (21) are respectively connected to the two sedimentation tanks (2), and a solenoid valve 1 (22) is installed inside the pipe 1 (20), and a solenoid valve 2 (23) is installed inside the pipe 2 (21), and the solenoid valve 1 (22) and the solenoid valve 2 (23) are both close to the sedimentation tank (2).

7. The tail water resource utilization treatment device suitable for high-density aquaculture according to claim 6, characterized in that: The output end of the second delivery pump (5) is connected to the aeration tank (3), and the two sedimentation tanks (2) are connected through a third pipe (31). A third solenoid valve (33) and a fourth solenoid valve (34) are respectively installed on both sides of the third pipe (31). The middle of the third pipe (31) is connected to a fourth pipe (32), and the fourth pipe (32) is connected to the input end of the second delivery pump (5).

8. The tail water resource utilization treatment device suitable for high-density aquaculture according to claim 7, characterized in that: One side of the top surface of the sedimentation tank (2) is connected to a filling pipe (24), the bottom surface of the inner wall of the sedimentation tank (2) is provided with an inclined surface (35), the bottom of the sedimentation tank (2) is connected to a drainage pipe (36), and a valve is installed inside the drainage pipe (36).

9. The tail water resource utilization treatment device suitable for high-density aquaculture according to claim 8, characterized in that: A second 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 second motor (25), sleeves (27) are fixedly connected to both sides of the support block (26), a support arm (28) is movably provided inside the sleeve (27), a spring (29) is sleeved on the outer wall of the support arm (28), the spring (29) is inside the sleeve (27), a paddle (30) is fixedly connected to the bottom of the support arm (28), the second motor (25) is used to drive the paddle (30) to rotate so that the tail water inside the sedimentation tank (2) rotates, and the debris is gathered by the centrifugal force of the rotation so that it is located at the bottom of the sedimentation tank (2).

10. The tail water resource utilization treatment device suitable for high-density aquaculture according to claim 1, characterized in that: An air supply pipe (37) is arranged outside the aeration tank (3), one side of the air supply pipe (37) is connected to a plurality of air distribution pipes (38), a plurality of 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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