A marine aquaculture tailwater treatment device and its use method

Abstract

The present invention discloses a marine aquaculture tailwater treatment device and a method for using the same, and relates to the technical field of marine aquaculture tailwater treatment. The device comprises a tank body, a filter tank, a water purification tank, a drainage trough, a water inlet tank, a wastewater tank, 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 filtering mechanism. The present invention provides a filtering mechanism, wherein a baffle is displaced to close the water inlet, a displacement rod is pushed to displace, and the displacement of the displacement rod drives a first straight gear to rotate, so that a filter frame rotates from an inclined state to a vertical state; when wastewater in the filter tank flows into the drainage trough, the wastewater passes through the filter frame, and filter material carried in the wastewater remains in the filter frame; when backwashing is completed, the baffle is displaced to open the water inlet, and the filter frame rotates to an inclined state; thereafter, the filter frame vibrates, so that the filter material on the filter frame vibrates and slides back into the filter tank, thereby preventing the filter material from flowing out along with the backwashing wastewater, causing the filter material to be lost.

Description

Technical Field

[0001] The present invention relates to the technical field of marine aquaculture tail water treatment, in particular to a marine aquaculture tail water treatment device and a use method thereof. Background Art

[0002] When treating marine aquaculture tailwater, the specific process route is as follows: the tailwater is filtered by the microfiltration machine in the workshop and then enters the aeration adjustment tank (the purpose of aeration is to pre-oxidize and remove part of the ammonia nitrogen and prevent the production of sulfides) for mean and amount adjustment. It is then pumped up to the shallow flotation machine, where the suspended solids and most of the colloids in the tailwater are removed through flocculation by the flocculant and flotation by the flotation machine, reducing the biochemical load. The effluent enters the indoor water production pool, where the waste heat is recovered by the waste heat recovery equipment and then enters the denitrification filter. Carbon source is added to the pool, and denitrifying microorganisms are used to convert nitrate nitrogen in the tailwater into nitrogen gas, reducing the total nitrogen content in the wastewater. It then flows by gravity to the nitrification filter, where COD in the wastewater is removed by microbial oxidation and decomposition. The effluent from the filter flows by gravity to the drainage tank, where waste heat is recovered and then discharged. The sludge produced by the flotation machine enters the sludge tank, and is then pumped up to the plate and frame filter press for dewatered sludge disposal. The filtrate enters the adjustment tank for the next step of treatment.

[0003] After a denitrification filter has been used for a period of time, it needs to be backwashed. However, during the backwashing operation, the filter media is backwashed with clean water, and the water flow easily causes some of the filter media to move, flowing out with the backwash wastewater, causing the filter media to be lost. In order to prevent the filter media from flowing out with the backwash wastewater, a marine aquaculture tailwater treatment device and its use method are provided. Summary of the Invention

[0004] The purpose of the present invention is to provide a marine aquaculture tailwater treatment device and a method for using the device in order to prevent filter material from flowing out along with backwash 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 provided at the top of the tank body, a clean water tank is provided between the two filter tanks, a drainage trough is provided above the clean water tank, an inlet tank and a waste water tank are provided inside the tank body at one end of 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; the inner cavity of the water inlet tank is fixedly connected to the water inlet pipe, the inner cavity of the waste water tank is fixedly connected to the drainage pipe, and one end of the clean water tank is fixed 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 provided below the filter plate, the filter tank and the clean water tank are connected through a connecting pipe, an aeration pipe is laid above the filter plate, the aeration pipe is connected to the air inlet pipe, a water inlet is provided on the inner wall of the water inlet tank, and the water inlet is connected to the filter tank, a supporting layer and a filter material layer are laid on the top of the filter plate in sequence, and the wastewater in the filter tank entering the drainage trough is filtered through the filtering mechanism.

[0006] As a further solution 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, and the outer wall of the rotating plate is equipped with a mounting plate, and 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 the 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 the 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, the displacement rod and the pool body are connected with a first spring, 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 of the displacement rod, and 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 the 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] The top end of the fixing plate is fixedly provided with a fixing groove, and the fixing groove is symmetrically provided on both sides of the inner wall of the fixing groove, and the bottom end of the fixing plate is fixedly connected to the connecting block, and the fixing block is symmetrically slidably connected to the inner wall of the connecting block, and the fixing block extends the connecting block, and the third spring is connected between the fixing block and the connecting block. The top end of the fixing block is rotatably connected to the connecting rod, and the top end of the connecting rod is rotatably connected to the C-shaped movable frame, the movable frame is slidably connected to the interior of the mounting plate and extends the mounting plate. The interior of the mounting plate is slidably connected to the cross plate, and the cross plate passes through the mounting plate, and the interior of the mounting plate is symmetrically rotatably connected to the second spur gear on both sides of the cross plate, the top end of the second spur gear is fixedly connected to the connecting shaft, the top end of the connecting shaft is fixedly connected to the positioning rod, and the torsion spring is connected to the outer wall of the connecting shaft between the positioning rod and the mounting plate.

[0009] As a further solution of the present invention: a threaded hole is provided on the top of the baffle, and the threaded hole matches the threaded rod.

[0010] As a further solution of the present invention: an inclined surface is provided at one end of the displacement rod located in the inner cavity of the water inlet, and a tooth groove is provided at the bottom end of the displacement rod, and the tooth groove is engaged 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, the inner wall of the displacement groove is fixedly connected with a limiting column running through the push rod, and the outer wall of the sliding rod fits with the inner wall of the sliding groove.

[0012] As a further solution of the present invention: the inner wall of the connecting groove is in contact with the outer wall of the connecting block, and the outer wall of the fixing block is in contact with the inner wall of the fixing groove.

[0013] As a further solution of the present invention: gear teeth are symmetrically provided on the outer walls of both sides of the transverse plate, and the gear teeth are engaged with the second spur gear.

[0014] A method for using a marine aquaculture tailwater treatment device, the specific steps are as follows:

[0015] Step 1: Install the mounting plate on the outer wall of the rotating plate by matching the parts in the mounting mechanism, thereby installing the filter frame;

[0016] Step 2: Start the motor to drive the baffle to move and close the water inlet, then perform backwashing, and the wastewater flows from the filter tank into the drain tank;

[0017] Step 3: When the water inlet is closed, the filter frame rotates vertically, and the wastewater flowing from the filter tank into the drain tank is filtered by the filter frame, and the filter material remains in the filter frame;

[0018] Step 4: When the water inlet is opened, the filter frame rotates, causing the filter material to slide into the filter tank.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. By setting up a filtering mechanism, the baffle is displaced to close the water inlet, pushing the displacement rod to displace, and the displacement of the displacement rod drives the first straight gear to rotate, so that the filter frame rotates from an inclined state to a vertical state; when the wastewater in the filter tank flows into the drain trough, the wastewater passes through the filter frame, and the filter material carried by the wastewater remains in the filter frame; when the backwash is completed, the baffle is displaced to open the water inlet, and the filter frame rotates to an inclined state; then the filter frame vibrates, so that the filter material on the filter frame vibrates and slides back into the filter tank, which can prevent the filter material from flowing out with the backwash wastewater and causing the loss of the filter material.

[0021] 2. By setting up the installation mechanism, the connecting block is inserted into the connecting groove until the fixed block is engaged into the fixed groove by the elastic force of the third spring, thereby completing the installation of the filter frame; the movable frame is pushed toward the mounting plate to move, and the movable frame displacement drives the fixed block to move through the connecting rod, and the fixed block moves 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 frame, which facilitates the rapid installation and disassembly of the filter frame. After the backwash is completed, the filter frame can be disassembled to clean the impurities adhering to the filter frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the drainage trough of the present invention;

[0024] Figure 3 Schematic diagram of the internal structure of the cell body of the present invention;

[0025] Figure 4 This is a schematic diagram of the installation of the baffle of the present invention;

[0026] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle;

[0027] Figure 6 Schematic diagram of the structure of the displacement rod of the present invention;

[0028] Figure 7 Schematic diagram of the installation of the slide bar of the present invention;

[0029] Figure 8 It is a schematic diagram of the connection between the rotating plate and the mounting plate of the present invention;

[0030] Figure 9 It is a schematic diagram of the internal structure of the rotating plate and the mounting plate of the present invention;

[0031] Figure 10 For the present invention Figure 9 Enlarged view of point B in the middle;

[0032] Figure 11 It is a schematic diagram of the installation of the horizontal plate of the present invention.

[0033] In the figure: 1, tank body; 2, filter tank; 3, clean water tank; 4, drainage trough; 5, water inlet tank; 6, waste water tank; 7, filter 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 rod; 716, slide chute; 717 , first spur 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, horizontal plate; 809, second spur gear; 810, connecting shaft; 811, positioning rod; 812, torsion spring; 9, water inlet pipe; 10, drain pipe; 11, filter plate; 12, connecting pipe; 13, water outlet pipe; 14, aeration pipe; 15, air inlet pipe; 16, water inlet; 17, limiting column. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0035] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and should not be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected, detachably connected, or connected in one piece; they can be mechanically connected or electrically connected; they can be directly connected, or indirectly connected through an intermediate medium, or they can be internal connections between two components. 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 circumstances. The following describes an embodiment of the present invention based on its overall structure.

[0036] See also Figures 1 to 11 In an embodiment of the present invention, a marine aquaculture tailwater treatment device includes a tank body 1, two filter tanks 2 are provided at the top of the tank 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, and an inlet tank 5 and a waste water tank 6 are provided at one end of the tank body 1 at the filter tank 2. The inlet tank 5 is located above the waste water tank 6, and one end of the drainage trough 4 is connected to the waste water tank 6; the inner cavity of the inlet tank 5 is fixedly connected to the water inlet pipe 9, the inner cavity of the waste water tank 6 is fixedly connected to the drainage pipe 10, and one end of the clean water tank 3 is fixedly connected to the outlet pipe 13 and The air inlet pipe 15 is located above the water outlet pipe 13. The inner wall of the filter tank 2 is fixedly connected to the filter plate 11. A connecting pipe 12 is provided below the filter plate 11. The filter tank 2 and the clean water tank 3 are connected through 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 provided on the inner wall of the water inlet tank 5. The water inlet 16 is connected to the filter tank 2. The top of the filter plate 11 is laid with a supporting layer and a filter material layer in sequence. The wastewater in the filter tank 2 entering the drainage trough 4 is filtered through the filtering mechanism 7.

[0037] In this embodiment, the water to be filtered enters the water inlet bin 5 through the water inlet pipe 9, and then enters the filter tank 2 through the water inlet 16. The filter material filters the water, and the clean water passes through the filter plate 11 and enters the clean water bin 3 through the connecting pipe 12, and is then discharged through the water outlet pipe 13. When backwashing is performed, the water inlet 16 is closed, and the gas enters the aeration pipe 14 through the air inlet pipe 15. At the same time, the water outlet pipe 13 transports the clean water into the clean water bin 3, and then enters the filter tank 2 through the connecting pipe 12. The filter material is backwashed, and the wastewater in the filter tank 2 increases and flows into the drainage trough 4. The wastewater in the drainage trough 4 flows into the wastewater bin 6 and is transported away through the drainage pipe 10.

[0038] Please refer to Figures 4 to 7 The filter mechanism 7 includes a rotating plate 701, which is rotatably connected to the top of both sides of the drain trough 4. The outer wall of the rotating plate 701 is installed with a mounting plate 702, and the outer wall of the mounting plate 702 is fixedly connected with a filter frame 703. The top of the pool body 1 is located above the water inlet 16 and is fixedly connected to a support frame 704. The top of the support frame 704 is installed with a motor 705. The output end of the motor 705 is connected to a threaded rod 706. The outer wall of the threaded rod 706 is 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 with 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 located at the bottom end of the displacement rod 708 and is rotatably connected to the first straight gear 71 7. The first straight 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 the mounting mechanism 8. The filtering mechanism 7 also includes a push plate 710, which is fixedly connected to the top of the displacement rod 708. The interior of the pool body 1 is located on one side of the push plate 710 and is slidably connected to a push rod 711. The top of the support frame 704 is located on one side of the motor 705 and is fixedly connected to a fixing frame 712. The top bottom end of the fixing frame 712 is fixedly connected to a second spring 714. The bottom end of the second spring 714 is fixedly connected to a displacement frame 713. The displacement frame 713 is slidably connected to the interior of the support frame 704 and extends to the inner cavity of the support frame 704. One end of the displacement frame 713 is fixedly connected to a sliding rod 715. The outer wall of the push rod 711 is provided with an S-shaped sliding groove 716 for the sliding rod 715 to slide.

[0039] In this embodiment: when backwashing is performed, the motor 705 is started, and the motor 705 drives the threaded rod 706 to rotate, and the rotation of the threaded rod 706 drives the baffle 707 to displace, and the baffle 707 displaces to close the water inlet 16. When the baffle 707 closes the water inlet 16, the baffle 707 contacts the displacement rod 708, pushing the displacement rod 708 to displace, causing the first spring 709 to be squeezed, and the displacement rod 708 displaces and 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 filter frame 703 rotates from an inclined state to a vertical state; when the wastewater in the filter tank 2 flows into the drain trough 4, the wastewater passes through the filter frame 703, and the filter material carried in the wastewater remains in the filter frame 703.

[0040] After the filter 703 is in the closed position, the filter 703 is in the closed position, and the filter 703 is in the closed position, so that the filter 703 can be restored to its original position after the filter 703 is in the closed position.

[0041] Please refer to Figures 8 to 11 The mounting mechanism 8 includes a connecting groove 801, which is opened at the top of the rotating plate 701. Fixed grooves 802 are symmetrically opened on both sides of the inner wall of the connecting groove 801. The bottom end of the mounting plate 702 is fixedly connected to a connecting block 803. The interior of the connecting block 803 is symmetrically slidably connected to a fixed block 804. The fixed block 804 extends out of the connecting block 803. A third spring 805 is connected between the fixed block 804 and the connecting block 803. The top of the fixed block 804 is rotatably connected to a connecting rod 806. The top of the connecting rod 806 is rotatably connected to the C-shaped movable frame 8 07, 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 the horizontal plate 808, the horizontal plate 808 passes through the mounting plate 702, the inside of the mounting plate 702 is symmetrically connected to the second spur gear 809 on both sides of the horizontal plate 808, the top of the second spur gear 809 is fixedly connected to the connecting shaft 810, the top of the connecting shaft 810 is fixedly connected to the positioning rod 811, and the outer wall of the connecting shaft 810 between the positioning rod 811 and the mounting plate 702 is connected to a torsion spring 812.

[0042] In this embodiment, when installing the mounting plate 702, the connecting block 803 is inserted into the connecting groove 801 until the fixing block 804 is engaged into the fixing groove 802 by the elastic force of the third spring 805, thereby fixing the mounting plate 702 and completing the installation of the filter frame 703. When removing the mounting plate 702, the movable frame 807 is pushed toward the mounting plate 702 to move. The displacement of the movable frame 807 drives the fixing block 804 to move through the connecting rod 806. The fixing block 804 moves out of the fixing groove 802, canceling the fixation of the mounting plate 702, and the connecting block 803 is taken out from the connecting groove 801, thereby completing the removal of the filter frame 703.

[0043] When the filter frame 703 is in use, the filter frame 703 rotates to a vertical state. During this process, the horizontal plate 808 contacts the inner wall of the drain trough 4, pushing the horizontal plate 808 to move. The displacement of the horizontal 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 the torsion spring 812 to twist. One end of the positioning rod 811 rotates to between the movable frame 807 and the mounting plate 702, so that the movable frame 807 cannot move toward the mounting plate 702, thereby preventing the filter frame 703 from loosening; when the filter frame 703 rotates to an inclined state, the positioning rod 811 is rotated and reset by the torsion spring 812, so that the movable frame 807 can move toward the mounting plate 702, thereby preventing the filter frame 703 from loosening; when the filter frame 703 rotates to an inclined state, the positioning rod 811 is rotated and reset by the torsion spring 812, so that the movable frame 807 can move toward the mounting plate 702, which is convenient for quick installation and removal of the filter frame 703. After backwashing is completed, the filter frame 703 can be disassembled to clean the impurities adhered to the filter frame 703.

[0044] Please refer 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 .

[0045] In this embodiment, the motor 705 rotates to drive the threaded rod 706 to rotate, and the rotation of the threaded rod 706 drives the baffle 707 to move, and the displacement of the baffle 707 closes the water inlet 16.

[0046] Please refer 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 the bottom end of the displacement rod 708 is provided with a tooth groove, which is engaged with the first straight gear 717.

[0047] 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, causing compression on 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.

[0048] Please refer to Figures 4 to 7 A displacement groove is provided inside the pool body 1 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. The outer wall of the slide rod 715 fits with the inner wall of the slide groove 716.

[0049] In this embodiment: the baffle 707 continues to displace and contacts the displacement frame 713, pushing the displacement frame 713 to displace, causing compression on the second spring 714, and the displacement of the displacement frame 713 drives the slide rod 715 to displace, and the slide rod 715 slides in the slide groove 716 to drive the push rod 711 to displace back and forth, and the displacement of the push rod 711 drives the push plate 710 to displace.

[0050] Please refer 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 .

[0051] In this embodiment, the connecting block 803 is inserted into the connecting groove 801 until the fixing block 804 is engaged into the fixing groove 802 by the elastic force of the third spring 805 , thereby fixing the mounting plate 702 and completing the installation of the filter frame 703 .

[0052] Please refer to Figures 8 to 11 The outer walls of both sides of the horizontal plate 808 are symmetrically provided with gear teeth, which mesh with the second spur gear 809.

[0053] In this embodiment: the filter frame 703 rotates to a vertical state. During this process, the horizontal plate 808 contacts the inner wall of the drainage trough 4, pushing the horizontal plate 808 to move. The displacement of the horizontal 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.

[0054] A method for using a marine aquaculture tailwater treatment device, the specific steps are as follows:

[0055] Step 1: Install the mounting plate 702 on the outer wall of the rotating plate 701 by cooperating with the parts in the mounting mechanism 8, thereby installing the filter frame 703;

[0056] Step 2: Start the motor 705 to drive the baffle 707 to move and close the water inlet 16, and then perform a backwash operation, and the wastewater flows from the filter tank 2 into the drain tank 4;

[0057] 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;

[0058] 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.

[0059] The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, can make equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, which should be covered by the scope of protection 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 tank 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), an inlet tank (5) and a waste water tank (6) are provided inside the tank body (1) at one end of the filter tank (2), the inlet tank (5) is located above the waste water tank (6), and one end of the drainage trough (4) is connected to the waste water tank (6); the inner cavity of the inlet tank (5) is fixedly connected to the water inlet pipe (9), the inner cavity of the waste water tank (6) is fixedly connected to the drainage pipe (10), one end of the clean water tank (3) is fixedly connected to the outlet pipe (13) and the air inlet pipe (15), and the air inlet pipe (15) is located at the inner cavity of the water inlet tank (5). Above the outlet pipe (13), a filter plate (11) is fixedly connected to the inner wall of the filter tank (2), and a connecting pipe (12) is provided 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), and the aeration pipe (14) is connected to the air inlet pipe (15). A water inlet (16) is provided on the inner wall of the water inlet tank (5), and 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. Wastewater in the filter tank (2) entering the drainage trough (4) is filtered through the filtering mechanism (7); 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 drain 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 filter frame (703), the top end of the pool body (1) being located above the water inlet (16) and being fixedly connected with a support frame (704), the top end of the support 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) 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).

2. A marine aquaculture tailwater treatment device according to claim 1, 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), the interior of the pool body (1) is located on one side of the push plate (710) and is slidably connected to a push rod (711), the top end of the support frame (704) is located on one side of the motor (705) and is fixedly connected to a fixing frame (712), the top bottom end of the fixing frame (712) is fixedly connected to a second spring (714), the bottom end of the second spring (714) is fixedly connected to a displacement frame (713), the displacement frame (713) is slidably connected to the interior of the support frame (704) and extends to the inner cavity of the support frame (704), one end of the displacement frame (713) is fixedly connected to a sliding rod (715), 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).

3. A marine aquaculture tailwater treatment device according to claim 2, characterized in that: The mounting mechanism (8) includes a connecting groove (801), the connecting groove (801) is opened at the top of the rotating plate (701), and fixed grooves (802) are symmetrically opened on both sides of the inner wall of the connecting groove (801), the bottom end of the mounting plate (702) is fixedly connected to a connecting block (803), the interior of the connecting block (803) is symmetrically slidably connected to a fixed block (804), the fixed block (804) extends out of the connecting block (803), a third spring (805) is connected between the fixed block (804) and the connecting block (803), the top end of the fixing block (804) is rotatably connected to a connecting rod (806), and the top end of the connecting rod (806) is rotatably connected to 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) passes through the mounting plate (702), the inside of the mounting plate (702) is symmetrically connected to the second spur gear (809) on both sides of the transverse plate (808), the top end of the second spur gear (809) is fixedly connected to a connecting shaft (810), the top end 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).

4. A marine aquaculture tailwater treatment device according to claim 2, characterized in that: A threaded hole is provided at the top of the baffle (707), and the threaded hole matches the threaded rod (706).

5. A marine aquaculture tailwater treatment device according to claim 2, 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 engaged with the first spur gear (717).

6. A marine aquaculture tailwater treatment device according to claim 2, characterized in that: A displacement groove for the push rod (711) to slide is provided inside the pool body (1), and a limiting column (17) that passes 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) is in contact with the inner wall of the sliding groove (716).

7. The marine aquaculture tailwater treatment device according to claim 3, characterized in that: The inner wall of the connecting groove (801) fits in contact with the outer wall of the connecting block (803), and the outer wall of the fixing block (804) fits in contact with the inner wall of the fixing groove (802).

8. The marine aquaculture tailwater treatment device according to claim 3, characterized in that: Gear teeth are symmetrically provided on the outer walls of both sides of the transverse plate (808), and the gear teeth are meshed with the second spur gear (809).

9. The method for using the marine aquaculture tailwater treatment device according to any one of claims 1 to 8, characterized in that: The specific steps are as follows: Step 1: by cooperating with the parts in the mounting mechanism (8), the mounting plate (702) is mounted on the outer wall of the rotating plate (701), thereby performing the mounting operation on the filter frame (703); Step 2: Start the motor (705) to drive the baffle (707) to move and close the water inlet (16), and then perform a backwash operation, so that the wastewater 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 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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