Marine product culture tail water treatment device and use method thereof

Abstract

The invention discloses a marine aquaculture tail water treatment device and a use method thereof, and relates to the technical field of marine aquaculture tail water treatment.The marine aquaculture tail water treatment device comprises a tank body, a filter tank, a water purification bin, a drainage tank, a water inlet bin, a wastewater bin, a water inlet pipe, a drainage pipe, a water outlet pipe, an air inlet pipe, a filter plate, a connecting pipe, an aeration pipe, a water inlet and a filter mechanism. By arranging the filtering mechanism, a baffle moves to close a water inlet, a displacement rod is pushed to move, and the displacement rod moves to drive a first straight gear to rotate, so that a filtering frame rotates from an inclined state to a vertical state; when wastewater in the filter tank flows into the drainage tank, the wastewater passes through the filter frame, and filter materials carried in the wastewater are remained in the filter frame; after reverse cleaning is completed, the baffle moves to open the water inlet, and the filter frame rotates to be in an inclined state; and then the filter frame vibrates, so that the filter material on the filter frame vibrates and slides back into the filter tank, and the filter material can be prevented from flowing out along with the backwashing wastewater to cause loss of the filter material.

Description

Technical Field

[0001] The present invention relates to the technical field of marine aquaculture tail water treatment, and specifically to a marine aquaculture tail water treatment device and its usage method. Background Art

[0002] When treating the tail water of marine aquaculture, the specific process route is as follows: The tail water is filtered by a microfilter in the workshop and then enters an aeration adjustment tank (the purpose of aeration is to perform pre-oxidation to remove part of the ammonia nitrogen and prevent the generation of sulfides) for average value and quantity adjustment. Then it is lifted by a pump to a shallow air flotation machine. Through the flocculation of a flocculant and the flotation of the air flotation machine, the suspended solids and most of the colloids in the tail water are removed, reducing the biochemical load. The effluent enters an indoor production water tank, and after heat recovery by a heat recovery device, it enters a denitrification filter. A carbon source is added to the filter, and denitrifying microorganisms are used to convert the nitrate nitrogen in the tail water into nitrogen gas, reducing the total nitrogen content in the wastewater. Then it flows by gravity to a nitrification filter, and the COD in the wastewater is removed by the oxidative decomposition of microorganisms. The effluent from the filter flows by gravity to a drainage tank, and after heat recovery, it is discharged. The floating sludge generated by the air flotation machine enters a sludge tank, and then it is lifted by a pump to a plate and frame filter press for dewatering sludge disposal. The filtrate enters the adjustment tank for further treatment.

[0003] During the use of the denitrification filter for a period of time, it is necessary to perform backwashing operations on the denitrification filter. However, during the backwashing operation, when backwashing the filter media with clean water, the water flow is likely to drive some of the filter media to move and flow out together with the backwashing wastewater, resulting in the loss of the filter media. In order to prevent the filter media from flowing out together with the backwashing wastewater, a marine aquaculture tail water treatment device and its usage method are provided. Summary of the Invention

[0004] The purpose of the present invention is to provide a marine aquaculture tail water treatment device and its usage method in order to prevent the filter media from flowing out together with the backwashing wastewater.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a marine aquaculture tailwater treatment device, comprising a tank body, two filter tanks are arranged at the top of the tank body, a clean water tank is arranged between the two filter tanks, a drainage trough is arranged above the clean water tank, an inlet tank and a waste water tank are arranged at one end of the tank body located at the filter tank, the inlet tank is located above the waste water tank, and one end of the drainage trough is connected to the waste water tank; an inlet pipe is fixedly connected to the inner cavity of the inlet tank, a drainage pipe is fixedly connected to the inner cavity of the waste water tank, and one end of the clean water tank is fixedly connected to the inner cavity of the waste water tank. An outlet pipe and an air inlet pipe are connected, the air inlet pipe is located above the outlet pipe, a filter plate is fixedly connected to the inner wall of the filter tank, a connecting pipe is arranged below the filter plate, the filter tank and the clean water tank are connected through the connecting pipe, an aeration pipe is arranged above the filter plate, the aeration pipe is connected to the air inlet pipe, a water inlet is arranged on the inner wall of the water inlet tank, the water inlet is connected to the filter tank, a supporting layer and a filter material layer are arranged on the top of the filter plate in sequence, and the wastewater in the filter tank entering the drainage trough is filtered through a filtering mechanism.

[0006] As a further scheme of the present invention: the filter mechanism includes a rotating plate, which is rotatably connected to the top of both sides of the drain trough, the outer wall of the rotating plate is equipped with a mounting plate, the outer wall of the mounting plate is fixedly connected to the filter frame, the top of the pool body is located above the water inlet and is fixedly connected to a support frame, the top of the support frame is equipped with a motor, the output end of the motor is connected to a threaded rod, the outer wall of the threaded rod is slidably connected to a baffle, the baffle is slidably connected to the inner wall of the support frame and extends to the inner cavity of the water inlet, the interior of the pool body is slidably connected to a displacement rod extending to the inner cavity of the water inlet, a first spring is connected between the displacement rod and the pool body, the interior of the pool body is located at the bottom end of the displacement rod and is rotatably connected to a first spur gear, the first spur gear is fixedly connected to one end of the rotating plate, and the mounting plate is mounted on the outer wall of the rotating plate through a mounting mechanism.

[0007] As a further solution of the present invention: the filtering mechanism also includes a push plate, which is fixedly connected to the top end of the displacement rod, the interior of the pool body is located on one side of the push plate and is slidably connected to a push rod, the top of the support frame is located on one side of the motor and is fixedly connected to a fixing frame, the top bottom end of the fixing frame is fixedly connected to a second spring, the bottom end of the second spring is fixedly connected to a displacement frame, the displacement frame is slidably connected to the interior of the support frame and extends to the inner cavity of the support frame, one end of the displacement frame is fixedly connected to a sliding rod, and the outer wall of the push rod is provided with an S-shaped sliding groove for the sliding rod to slide.

[0008] As a further solution of the present invention: The installation mechanism includes a connection groove, which is opened at the top end of the rotating plate. Fixed grooves are symmetrically opened on both sides of the inner wall of the connection groove. A connection block is fixedly connected to the bottom end of the installation plate. Fixed blocks are symmetrically and slidably connected inside the connection block. The fixed blocks extend out of the connection block. A third spring is connected between the fixed blocks and the connection block. The top end of the fixed block is rotatably connected to a connecting rod. The top end of the connecting rod is rotatably connected to a C-shaped movable frame. The movable frame is slidably connected inside the installation plate and extends out of the installation plate. A cross plate is slidably connected inside the installation plate. The cross plate penetrates through the installation plate. Second spur gears are symmetrically and rotatably connected on both sides of the cross plate inside the installation plate. A connection shaft is fixedly connected to the top end of the second spur gear. A positioning rod is fixedly connected to the top end of the connection shaft. A torsion spring is connected to the outer wall of the connection shaft between the positioning rod and the installation plate.

[0009] As a further solution of the present invention: A threaded hole is opened at the top end of the baffle plate, and the threaded hole is matched with the threaded rod.

[0010] As a further solution of the present invention: One end of the displacement rod located inside the water inlet cavity is provided with an inclined surface. A tooth groove is opened at the bottom end of the displacement rod, and the tooth groove is meshed with the first spur gear.

[0011] As a further solution of the present invention: A displacement groove for the push rod to slide is opened inside the pool body. A limiting column penetrating through the push rod is fixedly connected to the inner wall of the displacement groove. The outer wall of the sliding rod is attached to the inner wall of the sliding groove.

[0012] As a further solution of the present invention: The inner wall of the connection groove is attached to the outer wall of the connection block, and the outer wall of the fixed block is attached to the inner wall of the fixed groove.

[0013] As a further solution of the present invention: Tooth grooves are symmetrically arranged on both outer walls of the cross plate, and the tooth grooves are meshed with the second spur gears.

[0014] A method for using a seawater aquaculture tail water treatment device is as follows: Step 1: Through the cooperation of the parts inside the installation mechanism, the installation plate is installed on the outer wall of the rotating plate, so as to install the filter frame. Step 2: Start the motor to drive the baffle plate to displace to close the water inlet, and then perform a backwashing operation. The wastewater flows from the filter tank into the drainage tank. Step 3: When the water inlet is closed, the filter frame rotates to a vertical state. The wastewater flowing from the filter tank into the drainage tank passes through the filtration of the filter frame, and the filter material remains in the filter frame. Step 4: When the water inlet is opened, the filter box rotates, causing the filter media to slide into the filter tank.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. By setting up the filtering mechanism, the baffle displaces to close the water inlet, pushing the displacement rod to displace. The displacement of the displacement rod drives the first straight gear to rotate, causing the filter box to rotate from an inclined state to a vertical state; when the wastewater in the filter tank flows into the drainage trough, the wastewater passes through the filter box, and the filter media carried in the wastewater remains in the filter box; after the backwashing is completed, the baffle displaces to open the water inlet, and the filter box rotates to an inclined state; then the filter box vibrates, causing the filter media on the filter box to vibrate and slide back into the filter tank, which can prevent the filter media from flowing out together with the backwashing wastewater, resulting in the loss of the filter media.

[0016] 2. By setting up the installation mechanism, the connecting block is inserted into the connecting groove until the fixing block is snapped into the fixing groove under the elastic force of the third spring, thus completing the installation of the filter box; pushing the movable frame to displace towards the mounting plate, the displacement of the movable frame drives the fixing block to displace through the connecting rod. The fixing block displaces out of the fixing groove, canceling the fixation of the mounting plate, and the connecting block is taken out of the connecting groove to complete the removal of the filter box, which is convenient for the quick installation and disassembly of the filter box. After the backwashing is completed, the filter box can be disassembled to clean the impurities adhered to the filter box. Description of the Drawings

[0017] Figure 1 is the structural schematic diagram of the present invention; Figure 2 is the structural schematic diagram of the drainage trough of the present invention; Figure 3 is the internal structural schematic diagram of the pool body of the present invention; Figure 4 is the installation schematic diagram of the baffle of the present invention; Figure 5 is of the present invention Figure 4 the enlarged view of part A in; Figure 6 is the structural schematic diagram of the displacement rod of the present invention; Figure 7 is the installation schematic diagram of the slide bar of the present invention; Figure 8 is the connection schematic diagram of the rotating plate and the mounting plate of the present invention; Figure 9 is the internal structural schematic diagram of the rotating plate and the mounting plate of the present invention; Figure 10 is of the present invention Figure 9 the enlarged view of part B in; Figure 11Schematic diagram for the installation of the cross plate of the present invention.

[0018] In the figure: 1, pool body; 2, filter tank; 3, purified water tank; 4, drainage trough; 5, water inlet tank; 6, waste water tank; 7, filtering mechanism; 701, rotating plate; 702, mounting plate; 703, filter frame; 704, support frame; 705, motor; 706, threaded rod; 707, baffle; 708, displacement rod; 709, first spring; 710, push plate; 711, push rod; 712, fixed frame; 713, displacement frame; 714, second spring; 715, slide bar; 716, chute; 717, first straight gear; 8, mounting mechanism; 801, connecting groove; 802, fixing groove; 803, connecting block; 804, fixing block; 805, third spring; 806, connecting rod; 807, movable frame; 808, cross plate; 809, second straight gear; 810, connecting shaft; 811, positioning rod; 812, torsion spring; 9, water inlet pipe; 10, drain pipe; 11, filter plate; 12, connecting pipe; 13, outlet pipe; 14, aeration pipe; 15, air inlet pipe; 16, water inlet; 17, limit post. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "setting" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. Next, the embodiments of the present invention will be described according to the overall structure of the present invention.

[0021] Please refer to Figures 1 to 11 In an embodiment of the present invention, a seawater aquaculture tail water treatment device includes a pool body 1. Two filter pools 2 are provided at the top of the pool body 1. A water purification chamber 3 is arranged between the two filter pools 2. A drainage trough 4 is arranged above the water purification chamber 3. An inlet chamber 5 and a waste water chamber 6 are provided at one end of the filter pool 2 inside the pool body 1. The inlet chamber 5 is located above the waste water chamber 6. One end of the drainage trough 4 is communicated with the waste water chamber 6. A water inlet pipe 9 is fixedly connected to the inner cavity of the inlet chamber 5. A drain pipe 10 is fixedly connected to the inner cavity of the waste water chamber 6. One end of the water purification chamber 3 is fixedly connected with a water outlet pipe 13 and an air inlet pipe 15. The air inlet pipe 15 is located above the water outlet pipe 13. A filter plate 11 is fixedly connected to the inner wall of the filter pool 2. A connecting pipe 12 is arranged below the filter plate 11. The filter pool 2 and the water purification chamber 3 are communicated through the connecting pipe 12. An air distribution pipe 14 is laid above the filter plate 11. The air distribution pipe 14 is communicated with the air inlet pipe 15. A water inlet 16 is opened on the inner wall of the inlet chamber 5. The water inlet 16 is communicated with the filter pool 2. A supporting layer and a filter material layer are sequentially laid on the top end of the filter plate 11. The waste water entering the drainage trough 4 from the filter pool 2 is filtered by a filtering mechanism 7.

[0022] In this embodiment: The water to be filtered enters the inlet chamber 5 through the water inlet pipe 9, and then enters the filter pool 2 through the water inlet 16. The filter material filters the water. The purified water passes through the filter plate 11 and enters the water purification chamber 3 through the connecting pipe 12, and then is discharged through the water outlet pipe 13. When performing backwashing, the water inlet 16 is closed. Gas enters the air distribution pipe 14 through the air inlet pipe 15. At the same time, the water outlet pipe 13 conveys purified water into the water purification chamber 3, and then enters the filter pool 2 through the connecting pipe 12 to perform backwashing on the filter material. The waste water in the filter pool 2 increases and flows into the drainage trough 4. The waste water in the drainage trough 4 flows into the waste water chamber 6 and is conveyed away through the drain pipe 10.

[0023] Please pay special attention to Figures 4 to 7, the filtering mechanism 7 includes a rotating plate 701 which is rotatably connected to the two top ends of the drainage trough 4. An installation plate 702 is installed on the outer wall of the rotating plate 701, and a filtering frame 703 is fixedly connected to the outer wall of the installation plate 702. At the top of the pool body 1, above the water inlet 16, a support frame 704 is fixedly connected. A motor 705 is installed at the top of the support frame 704. The output end of the motor 705 is connected to a threaded rod 706. A baffle 707 is slidably connected to the outer wall of the threaded rod 706. The baffle 707 is slidably connected to the inner wall of the support frame 704 and extends into the inner cavity of the water inlet 16. A displacement rod 708 extending into the inner cavity of the water inlet 16 is slidably connected inside the pool body 1. A first spring 709 is connected between the displacement rod 708 and the pool body 1. At the bottom end of the displacement rod 708 inside the pool body 1, a first straight gear 717 is rotatably connected. The first straight gear 717 is fixedly connected to one end of the rotating plate 701. The installation plate 702 is installed on the outer wall of the rotating plate 701 through an installation mechanism 8. The filtering mechanism 7 further includes a push plate 710 which is fixedly connected to the top end of the displacement rod 708. A push rod 711 is slidably connected to one side of the push plate 710 inside the pool body 1. At the top of the support frame 704, on one side of the motor 705, a fixed frame 712 is fixedly connected. A second spring 714 is fixedly connected to the bottom end of the top of the fixed frame 712. The bottom end of the second spring 714 is fixedly connected to a displacement frame 713. The displacement frame 713 is slidably connected inside the support frame 704 and extends into the inner cavity of the support frame 704. One end of the displacement frame 713 is fixedly connected to a sliding rod 715. An S-shaped sliding groove 716 for the sliding rod 715 to slide is formed on the outer wall of the push rod 711.

[0024] In this embodiment: When performing backwashing, the motor 705 is started. The operation of the motor 705 drives the threaded rod 706 to rotate. The rotation of the threaded rod 706 drives the baffle 707 to displace. The displacement of the baffle 707 closes the water inlet 16. When the baffle 707 closes the water inlet 16, the baffle 707 contacts the displacement rod 708 and pushes the displacement rod 708 to displace, squeezing the first spring 709. The displacement of the displacement rod 708 drives the first straight gear 717 to rotate. The rotation of the first straight gear 717 drives the rotating plate 701 to rotate, so that the filtering frame 703 rotates from an inclined state to a vertical state; when the wastewater in the filter tank 2 flows into the drainage trough 4, the wastewater passes through the filtering frame 703, and the filter media carried in the wastewater remains in the filtering frame 703.

[0025] After the backwashing is completed, the baffle 707 is displaced to open the water inlet 16. The baffle 707 is separated from the displacement rod 708. The displacement rod 708 is displaced and reset under the elastic force of the first spring 709. The displacement of the displacement rod 708 drives the first spur gear 717 to rotate, thereby driving the filter frame 703 to return to the inclined state. Then the baffle 707 continues to be displaced and contacts the displacement frame 713, pushing the displacement frame 713 to be displaced, squeezing the second spring 714. The displacement of the displacement frame 713 drives the slide rod 715 to be displaced. The slide rod 715 slides in the chute 716 to drive the push rod 711 to reciprocate. The displacement of the push rod 711 pushes the push plate 710 to be displaced. The displacement of the push plate 710 drives the displacement rod 708 to reciprocate, thereby driving the filter frame 703 to vibrate, so that the filter media on the filter frame 703 vibrates and slides back into the filter tank 2, which can prevent the filter media from flowing out together with the backwashing wastewater, causing the loss of the filter media.

[0026] Please refer particularly to Figures 8 to 11 , the installation mechanism 8 includes a connection groove 801. The connection groove 801 is opened at the top end of the rotating plate 701. Fixed grooves 802 are symmetrically opened on both sides of the inner wall of the connection groove 801. A connection block 803 is fixedly connected to the bottom end of the mounting plate 702. Fixed blocks 804 are symmetrically and slidably connected inside the connection block 803. The fixed blocks 804 extend out of the connection block 803. A third spring 805 is connected between the fixed blocks 804 and the connection block 803. The top end of the fixed block 804 is rotatably connected to a connecting rod 806. The top end of the connecting rod 806 is rotatably connected to a C-shaped movable frame 807. The movable frame 807 is slidably connected inside the mounting plate 702 and extends out of the mounting plate 702. A cross plate 808 is slidably connected inside the mounting plate 702. The cross plate 808 penetrates through the mounting plate 702. Second spur gears 809 are symmetrically and rotatably connected on both sides of the cross plate 808 inside the mounting plate 702. A connecting shaft 810 is fixedly connected to the top end of the second spur gear 809. A positioning rod 811 is fixedly connected to the top end of the connecting shaft 810. A torsion spring 812 is connected to the outer wall of the connecting shaft 810 between the positioning rod 811 and the mounting plate 702.

[0027] In this embodiment: When installing the mounting plate 702, insert the connection block 803 into the connection groove 801 until the fixed block 804 is snapped into the fixed groove 802 under the elastic force of the third spring 805 to fix the mounting plate 702, thereby completing the installation of the filter frame 703. When removing the mounting plate 702, push the movable frame 807 towards the mounting plate 702. The displacement of the movable frame 807 drives the fixed block 804 to be displaced through the connecting rod 806. The fixed block 804 is displaced out of the fixed groove 802, canceling the fixation of the mounting plate 702. Take out the connection block 803 from the connection groove 801 to complete the removal of the filter frame 703.

[0028] When the filter box 703 is in use, the filter box 703 rotates to a vertical state. During this process, the cross plate 808 contacts the inner wall of the drainage trough 4, pushing the cross plate 808 to displace. The displacement of the cross plate 808 drives the second spur gear 809 to rotate. The rotation of the second spur gear 809 drives the connecting shaft 810 to rotate. The rotation of the connecting shaft 810 drives the positioning rod 811 to rotate, causing torsion of the torsion spring 812. One end of the positioning rod 811 rotates between the movable frame 807 and the mounting plate 702, so that the movable frame 807 cannot displace towards the mounting plate 702, thus preventing the filter box 703 from loosening. When the filter box 703 rotates to an inclined state, the positioning rod 811 rotates and resets under the torsion of the torsion spring 812, enabling the movable frame 807 to displace towards the mounting plate 702, facilitating the quick installation and disassembly of the filter box 703. After the backwashing is completed, the filter box 703 can be disassembled to clean the impurities adhering to the filter box 703.

[0029] Please refer specifically to Figures 4 to 7 , a threaded hole is provided at the top of the baffle 707, and the threaded hole matches the threaded rod 706.

[0030] In this embodiment: The operation of the motor 705 drives the threaded rod 706 to rotate. The rotation of the threaded rod 706 drives the baffle 707 to displace, and the displacement of the baffle 707 closes the water inlet 16.

[0031] Please refer specifically to Figures 4 to 7 , one end of the displacement rod 708 located in the inner cavity of the water inlet 16 is provided with an inclined surface, and a tooth groove is provided at the bottom end of the displacement rod 708. The tooth groove meshes with the first spur gear 717.

[0032] In this embodiment: When the baffle 707 closes the water inlet 16, the baffle 707 contacts the displacement rod 708, pushing the displacement rod 708 to displace, squeezing the first spring 709. The displacement of the displacement rod 708 drives the first spur gear 717 to rotate, and the rotation of the first spur gear 717 drives the rotating plate 701 to rotate.

[0033] Please refer specifically to Figures 4 to 7 , a displacement groove for the push rod 711 to slide is provided inside the pool body 1. A limiting post 17 penetrating through the push rod 711 is fixedly connected to the inner wall of the displacement groove, and the outer wall of the sliding rod 715 fits with the inner wall of the sliding groove 716.

[0034] In this embodiment: The baffle 707 continues to displace and contacts the displacement frame 713, pushing the displacement frame 713 to displace, squeezing the second spring 714. The displacement of the displacement frame 713 drives the sliding rod 715 to displace. The sliding of the sliding rod 715 in the sliding groove 716 drives the push rod 711 to reciprocate and displace, and the displacement of the push rod 711 pushes the push plate 710 to displace.

[0035] Please refer specifically to Figures 8 to 11 , the inner wall of the connecting groove 801 fits with the outer wall of the connecting block 803, and the outer wall of the fixing block 804 fits with the inner wall of the fixing groove 802.

[0036] In this embodiment: Insert the connecting block 803 into the connecting groove 801 until the fixing block 804 is snapped into the fixing groove 802 under the elastic force of the third spring 805 to fix the mounting plate 702, thereby completing the installation of the filter frame 703.

[0037] Please refer specifically to Figures 8 to 11 , the outer walls on both sides of the cross plate 808 are symmetrically provided with teeth, and the teeth mesh with the second straight gear 809.

[0038] In this embodiment: The filter frame 703 rotates to a vertical state. During this process, the cross plate 808 contacts the inner wall of the drain tank 4, pushing the cross plate 808 to displace. The displacement of the cross plate 808 drives the second straight gear 809 to rotate. The rotation of the second straight gear 809 drives the connecting shaft 810 to rotate, and the rotation of the connecting shaft 810 drives the positioning rod 811 to rotate.

[0039] A method for using a seawater aquaculture tail water treatment device is as follows: Step 1: Through the cooperation of the parts in the installation mechanism 8, install the mounting plate 702 on the outer wall of the rotating plate 701, thereby performing the installation operation on the filter frame 703; Step 2: Start the motor 705 to drive the baffle 707 to displace to close the water inlet 16, and then perform the backwashing operation. The waste water flows from the filter tank 2 into the drain tank 4; Step 3: When the water inlet 16 is closed, the filter frame 703 rotates to a vertical state. The waste water flowing from the filter tank 2 into the drain tank 4 passes through the filtration of the filter frame 703, and the filter material remains in the filter frame 703; Step 4: When the water inlet 16 is opened, the filter frame 703 rotates, causing the filter material to slide into the filter tank 2.

[0040] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A marine aquaculture tailwater treatment device, comprising a tank body (1), characterized in that: Two filter tanks (2) are provided at the top of the pool body (1), a clean water tank (3) is provided between the two filter tanks (2), a drainage trough (4) is provided above the clean water tank (3), a water inlet tank (5) and a waste water tank (6) are provided inside the pool body (1) at one end of the filter tank (2), the water inlet tank (5) is located above the waste water tank (6), one end of the drainage trough (4) is connected to the waste water tank (6); the inner cavity of the water inlet tank (5) is fixedly connected to a water inlet pipe (9), the inner cavity of the waste water tank (6) is fixedly connected to a drainage pipe (10), one end of the clean water tank (3) is fixedly connected to a water outlet pipe (13) and an air inlet pipe (15), the air inlet pipe (15) is located at the inner cavity of the waste water tank (6), and the outlet pipe (13) and the air inlet pipe (15) are fixedly connected to the outlet pipe (13). Above the outlet pipe (13), a filter plate (11) is fixedly connected to the inner wall of the filter tank (2), a connecting pipe (12) is arranged below the filter plate (11), the filter tank (2) and the clean water tank (3) are connected via the connecting pipe (12), an aeration pipe (14) is laid above the filter plate (11), the aeration pipe (14) is connected to the air inlet pipe (15), a water inlet (16) is opened on the inner wall of the water inlet tank (5), the water inlet (16) is connected to the filter tank (2), a supporting layer and a filter material layer are laid on the top of the filter plate (11) in sequence, and the wastewater in the filter tank (2) entering the drainage trough (4) is filtered through a filtering mechanism (7).

2. A marine aquaculture tailwater treatment device according to claim 1, characterized in that: The filtering mechanism (7) comprises a rotating plate (701), the rotating plate (701) being rotatably connected to the top ends of both sides of the drainage trough (4), the outer wall of the rotating plate (701) being mounted with a mounting plate (702), the outer wall of the mounting plate (702) being fixedly connected with a filtering frame (703), the top end of the pool body (1) being located above the water inlet (16) and being fixedly connected with a supporting frame (704), the top end of the supporting frame (704) being mounted with a motor (705), the output end of the motor (705) being connected with a threaded rod (706), the outer wall of the threaded rod (706) being slidably connected with a baffle (707), the baffle (707) is slidably connected to the inner wall of the support frame (704) and extends to the inner cavity of the water inlet (16); the interior of the pool body (1) is slidably connected to a displacement rod (708) extending to the inner cavity of the water inlet (16); a first spring (709) is connected between the displacement rod (708) and the pool body (1); the interior of the pool body (1) is rotatably connected to a first spur gear (717) located at the bottom end of the displacement rod (708); the first spur gear (717) is fixedly connected to one end of the rotating plate (701); and the mounting plate (702) is mounted on the outer wall of the rotating plate (701) through a mounting mechanism (8).

3. A marine aquaculture tailwater treatment device according to claim 2, characterized in that: The filtering mechanism (7) further comprises a push plate (710), wherein the push plate (710) is fixedly connected to the top end of the displacement rod (708); a push rod (711) is slidably connected to the inside of the pool body (1) and is located on one side of the push plate (710); a fixing frame (712) is fixedly connected to the top end of the support frame (704) and is located on one side of the motor (705); a second spring (714) is fixedly connected to the bottom end of the top of the fixing frame (712); a displacement frame (713) is fixedly connected to the inside of the support frame (704) and extends to the inner cavity of the support frame (704); a sliding rod (715) is fixedly connected to one end of the displacement frame (713); and an S-shaped sliding groove (716) for the sliding rod (715) to slide is provided on the outer wall of the push rod (711).

4. A marine aquaculture tailwater treatment device according to claim 3, characterized in that: The mounting mechanism (8) comprises a connecting groove (801), the connecting groove (801) being provided at the top end of the rotating plate (701), the inner walls of the connecting groove (801) being symmetrically provided with fixing grooves (802), the bottom end of the mounting plate (702) being fixedly connected with a connecting block (803), the interior of the connecting block (803) being symmetrically slidably connected with a fixing block (804), the fixing block (804) extending out of the connecting block (803), a third spring (805) being connected between the fixing block (804) and the connecting block (803), the top end of the fixing block (804) being rotatably connected with a connecting rod (806), the top end of the connecting rod (806) being rotatably connected with a C-shaped movable frame (80 7), the movable frame (807) is slidably connected to the inside of the mounting plate (702) and extends out of the mounting plate (702), the inside of the mounting plate (702) is slidably connected to a transverse plate (808), the transverse plate (808) penetrates the mounting plate (702), the inside of the mounting plate (702) is symmetrically rotatably connected to a second spur gear (809) located on both sides of the transverse plate (808), the top of the second spur gear (809) is fixedly connected to a connecting shaft (810), the top of the connecting shaft (810) is fixedly connected to a positioning rod (811), and a torsion spring (812) is connected to the outer wall of the connecting shaft (810) between the positioning rod (811) and the mounting plate (702).

5. A marine aquaculture tailwater treatment device according to claim 3, characterized in that: A threaded hole is provided at the top of the baffle (707), and the threaded hole matches the threaded rod (706).

6. A marine aquaculture tailwater treatment device according to claim 3, characterized in that: An inclined surface is provided at one end of the displacement rod (708) located in the inner cavity of the water inlet (16), and a tooth groove is provided at the bottom end of the displacement rod (708), and the tooth groove is meshed with the first spur gear (717).

7. A marine aquaculture tailwater treatment device according to claim 3, characterized in that: The pool body (1) is provided with a displacement groove for the push rod (711) to slide, the inner wall of the displacement groove is fixedly connected with a limit column (17) that passes through the push rod (711), and the outer wall of the slide rod (715) fits with the inner wall of the slide groove (716).

8. A marine aquaculture tailwater treatment device according to claim 4, characterized in that: The inner wall of the connecting groove (801) fits with the outer wall of the connecting block (803), and the outer wall of the fixing block (804) fits with the inner wall of the fixing groove (802).

9. A marine aquaculture tailwater treatment device according to claim 4, characterized in that: Gear teeth are symmetrically arranged on the outer walls of both sides of the transverse plate (808), and the gear teeth are meshed with the second spur gear (809).

10. A method for using a marine aquaculture tailwater treatment device according to any one of claims 1 to 9, characterized in that: The specific steps are as follows: Step 1: by means of the cooperation of the parts in the installation mechanism (8), the installation plate (702) is installed on the outer wall of the rotating plate (701), thereby performing the installation operation on the filter frame (703); Step 2: starting the motor (705) to drive the baffle (707) to move and close the water inlet (16), and then performing a backwash operation, so that the wastewater flows from the filter tank (2) into the drainage trough (4); Step 3: When the water inlet (16) is closed, the filter frame (703) rotates vertically, and the wastewater flowing from the filter tank (2) into the drain trough (4) is filtered by the filter frame (703), and the filter material remains in the filter frame (703); Step 4: When the water inlet (16) is opened, the filter frame (703) rotates, causing the filter material to slide into the filter tank (2).

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