Marine product culture tail water filtering device

Abstract

The utility model discloses a marine aquaculture tail water filtering device, which relates to the field of aquaculture tail water filtering, and comprises a filter material pool, a water distribution tank arranged on one side of the filter material pool, a backwashing pipe arranged at the bottom of the filter material pool, a drainage tank arranged at the bottom of the water distribution tank, and a limiting mechanism arranged on the water distribution tank and the filter material pool, the limiting mechanism comprises a limiting unit and a connecting unit; and the connecting unit is used for providing limitation for connection of the water distribution tank and the partition plate. By arranging the limiting mechanism, when a plurality of heads on the partition plate need to be replaced, downward pressure is given to the pressing rod to drive the limiting block to move, so that the limiting block is moved out of the bottom bayonet of the connecting ring, rotation limiting of the connecting ring is relieved, rotation force is given to the rotating ring, the connecting ring is moved out of the inner side of the water distribution tank, and replacement of the heads on the partition plate is facilitated. At the moment, the partition plate with the filter heads can be taken out, and the multiple filter heads are taken out together, so that the filter heads are convenient to replace, and the working efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the field of aquaculture tail water filtration, in particular to a filtration device for mariculture tail water. Background Technique

[0002] In the prior art, when large-scale aquaculture operations are carried out on fish, the wastewater generated by the fish during the aquaculture process needs to be filtered before it can be discharged to the outside. The treatment process for aquaculture tail water is: aeration - dissolved air flotation for impurity removal - denitrification - discharge. Among them, in the denitrification filter tank stage, the sewage passes through the filter media tank, and the pollutants contained in the water body are intercepted by the filter media tank, and the intercepted pollutants can be biodegraded and transformed by the organisms attached to the filter media; at the same time, the dissolved organic matter and specific substances are also removed, and the generated sludge remains in the filter layer. When the sewage enters the filter media tank, it needs to be filtered once by the filter head, and the filter head for the primary filtration needs to be replaced and cleaned regularly. Each replacement requires draining the filtered water and then manually entering the filter media tank to disassemble the filter head, which is inconvenient to operate and affects the overall filtration efficiency of the device. Based on this, the utility model proposes a filtration device for mariculture tail water. Content of the Utility Model

[0003] The purpose of the utility model is to provide a filtration device for mariculture tail water to solve the problems raised in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A filtration device for mariculture tail water, including a filter media tank, a water distribution tank is arranged on one side of the filter media tank, a backwash pipe is arranged at the bottom of the filter media tank, a drainage tank is arranged at the bottom of the water distribution tank, and the drainage tank is connected to the bottom of the filter media tank through a drainage pipe. The device also includes a limiting mechanism arranged on the water distribution tank and the filter media tank; the limiting mechanism includes a limiting unit and a connecting unit; the connecting unit includes a partition plate, the partition plate is vertically slidably installed on one side of the water distribution tank and is located inside the filter media tank, at least one filter head is installed on the partition plate, and water inlets corresponding to the position and quantity of the filter heads are arranged on the side wall of the water distribution tank.

[0005] As a further scheme of the utility model: The connecting unit also includes a rotating ring, a pressing rod, and a connecting ring; the rotating ring is rotatably installed at the top of the partition plate, and the rotating ring is used to drive the connecting ring to rotate synchronously; the pressing rod is vertically slidably installed on the inner wall of the partition plate and penetrates through the partition plate to the outside of the partition plate, and the pressing rod is used to drive the rotating ring to rotate synchronously; the connecting ring is fixed at the bottom of the rotating ring and extends into the partition plate, and the connecting ring is used to provide a limit for the connection between the water distribution tank and the partition plate.

[0006] As a further solution of the utility model: The limiting unit includes a limiting block, a positioning rod, a spring, and an annular bayonet; the limiting block is vertically slidably installed inside the partition and extends to the inner wall of the connecting ring, and the limiting block is used to limit the rotation of the connecting ring; the positioning rod is fixed on the inner wall of the partition and penetrates the limiting block, and the positioning rod is used to guide the vertical movement of the limiting block; the two ends of the spring are respectively clamped at the bottom of the limiting block and the inner wall of the partition, and the spring is used to always provide an extrusion elastic force for the upward movement of the limiting block.

[0007] As a further solution of the utility model: The outer wall of the limiting block is integrally in an "L" shape, and a sliding groove for the vertical movement of the limiting block is formed on the inner wall of the partition; the annular bayonet is opened on the inner side of the top end of the water distribution tank and penetrates the water distribution tank, and the annular bayonet is used to provide space for one end of the connecting ring to be inserted.

[0008] As a further solution of the utility model: One end of the horizontal rod of the limiting block coincides with the vertical movement track of the pressing rod, and a sliding groove for the vertical movement of the pressing rod is formed on the inner wall of the partition.

[0009] As a further solution of the utility model: A rotating groove for the rotation of the connecting ring is formed on the inner wall of the partition, the outer wall of the connecting ring is integrally in a semi-circular ring state, and a bayonet for the vertical rod of the limiting block to be inserted is arranged at the bottom of the connecting ring.

[0010] As a further solution of the utility model: A convex block extending to the inner wall of the rotating ring is arranged on the outer wall of the shaft rod of the pressing rod, and a filter head for initially filtering sewage is threadedly connected to the outer wall of the partition.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] By setting the limiting mechanism, when it is necessary to replace multiple heads on the partition, a downward pressure is applied to the pressing rod to drive the limiting block to move, so that the limiting block moves out of the bottom bayonet of the connecting ring, thereby releasing the rotational limit of the connecting ring. By applying a rotational force to the rotating ring, the connecting ring is moved out of the inner side of the water distribution tank. At this time, the partition with the filter head can be taken out, and multiple filter heads are taken out together, which is convenient for replacing the filter heads and further improves the work efficiency. In addition, through the limiting mechanism, the partition can be limited and fixed against the inner wall of the filter material pool, and the filter head is aligned with the water inlet; moreover, the installation and fixation of the partition are more stable and will not slide up and down under the buoyancy of water. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the utility model;

[0014] Figure 2 is Figure 1Enlarged view of part A;

[0015] Figure 3 Schematic diagram of the separated state structure of the partition plate of the present utility model;

[0016] Figure 4 is Figure 3 Enlarged view of part B;

[0017] Figure 5 Schematic diagram of the structure of the limiting mechanism of the present utility model.

[0018] In the figure: 1, filter media tank; 2, water distribution tank; 3, backwash pipe; 4, drainage tank; 5, limiting mechanism; 501, partition plate; 502, rotating ring; 503, pressing rod; 504, connecting ring; 505, limiting block; 506, positioning rod; 507, spring; 508, annular bayonet; 6, filter head; 7, drain pipe. Specific embodiments

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

[0020] Please refer to Figures 1-3 , in the embodiment of the present utility model, a seawater aquaculture tail water filtration device includes a filter media tank 1, a water distribution tank 2 is arranged on one side of the filter media tank 1, a backwash pipe 3 is arranged at the bottom of the filter media tank 1, a drainage tank 4 is arranged at the bottom of the water distribution tank 2, and the drainage tank 4 is communicated with the bottom side wall of the filter media tank 1 through a drain pipe 7 (the connection position of the drain pipe 7 and the filter media tank 1 is higher than the upper limit of the filter media laying). It further includes a limiting mechanism 5 arranged on the water distribution tank 2 and the filter media tank 1. The limiting mechanism 5 includes a limiting unit and a connecting unit; the connecting unit is used to provide limitation for the connection of the water distribution tank 2 and the partition plate 501; the limiting unit is used to provide limitation for the movement of the connecting unit.

[0021] The connecting unit includes a partition plate 501, a rotating ring 502, a pressing rod 503, and a connecting ring 504; the partition plate 501 is vertically slidably installed on one side of the water distribution tank 2 and inside the filter media tank 1. A plurality of filter nozzles 6 arranged horizontally are installed on the partition plate 501. Water inlets corresponding to the positions and quantities of the filter nozzles 6 are provided on the side wall of the water distribution tank 2. The rotating ring 502 is rotatably installed at the top of the partition plate 501, and the rotating ring 502 is used to drive the connecting ring 504 to rotate synchronously; the pressing rod 503 is vertically slidably installed on the inner wall of the partition plate 501 and penetrates through the partition plate 501 to the outside of the partition plate 501, and the pressing rod 503 is used to drive the rotating ring 502 to rotate synchronously; the connecting ring 504 is fixed at the bottom of the rotating ring 502 and extends into the interior of the partition plate 501, and the connecting ring 504 is used to provide a limit for the connection between the water distribution tank 2 and the partition plate 501.

[0022] The limiting unit includes a limiting block 505, a positioning rod 506, a spring 507, and an annular bayonet 508; the limiting block 505 is vertically slidably installed inside the partition plate 501 and extends into the inner wall of the connecting ring 504, and the limiting block 505 is used to provide a limit for the rotation of the connecting ring 504; the positioning rod 506 is fixed on the inner wall of the partition plate 501 and penetrates through the limiting block 505, and the positioning rod 506 is used to provide a guide for the vertical movement of the limiting block 505; both ends of the spring 507 are clamped between the bottom of the limiting block 505 and the inner wall of the partition plate 501, and the spring 507 is used to always provide an extrusion elastic force for the upward movement of the limiting block 505; the annular bayonet 508 is opened on the inner side of the top of the water distribution tank 2 and penetrates through the water distribution tank 2, and the annular bayonet 508 is used to provide a space for one end of the connecting ring 504 to be inserted.

[0023] In this embodiment: The sewage after aeration and sedimentation is discharged into the interior of the water distribution tank 2, and the sewage is discharged into the filter media tank 1 through the water inlet provided on one side of the water distribution tank 2 and the filter nozzles 6 on the partition plate 501. At the same time, the filter nozzles can initially filter the sewage. The sewage enters the interior of the filter media tank 1, and the pollutants contained in the water body are intercepted by the filter media tank 1 with filter media laid at the bottom and are biodegraded and transformed by the organisms attached to the filter media. At the same time, dissolved organic matter and specific substances are also removed. The generated sludge remains in the filter media tank 1, and only the filtered and purified water is allowed to pass through.

[0024] One end of the backwash pipe 3 is connected to the clean water source through a backwash pump. By starting the backwash pump, the filter media inside the filter media tank 1 can be flushed from bottom to top by the clean water with pressure in the backwash pipe 3. The sludge in the filter media tank 1 during backwashing can be discharged through the drain pipe 7 and enter the drainage tank 4 for collection operations.

[0025] When it is necessary to replace and clean the filter head 6 on the partition plate 501, a downward pressing force can be applied to the pressing rod 503. The pressing rod 503 will move vertically along the inner wall of the rotating ring 502 and apply a downward squeezing force to the limiting block 505. The stressed limiting block 505 will move along the outer wall of the positioning rod 506 and apply a squeezing force to the spring 507. The vertical rod of the moving limiting block 505 will move out of the bottom bayonet of the connecting ring 504, thereby releasing the rotational limit of the connecting ring 504. At this time, the pressing rod 503 can be rotated. The convex block on the outer wall of the pressing rod 503 will transmit the rotational force to the rotating ring 502, causing the rotating ring 502 to synchronously drive the connecting ring 504 to rotate circumferentially. The circumferentially rotating connecting ring 504 will rotate by 90 degrees, causing the connecting ring 504 to move out of the annular bayonet 508 on the inner wall of the water distribution tank 2, thereby releasing the connection limit between the partition plate 501 and the water distribution tank 2. By lifting the partition plate 501, the staff can easily remove multiple filter heads 6 installed on the partition plate 501 at one time, without the need for manual entry into the filter material pool 1 to disassemble the multiple filter heads 6, further improving the work efficiency.

[0026] Please refer particularly to Figures 1-3 , the outer wall of the limiting block 505 is integrally in an "L" shape. A sliding groove for the vertical movement of the limiting block 505 is formed on the inner wall of the partition plate 501. One end of the horizontal rod of the limiting block 505 coincides with the vertical movement track of the pressing rod 503. A sliding groove for the vertical movement of the pressing rod 503 is formed on the inner wall of the partition plate 501. A rotating groove for the rotation of the connecting ring 504 is formed on the inner wall of the partition plate 501. The outer wall of the connecting ring 504 is integrally in a semi-circular shape. A bayonet for inserting the vertical rod of the limiting block 505 is provided at the bottom of the connecting ring 504; a convex block extending to the inner wall of the rotating ring 502 is provided on the outer wall of the shaft rod of the pressing rod 503. The outer wall of the partition plate 501 is threadedly connected with a filter head 6 for primary filtration of sewage.

[0027] In this embodiment: Through this structure, the limiting block 505 can be moved vertically along the internal moving groove of the partition plate 501 under the pressing of the pressing rod 503, so that the vertical rod of the limiting block 505 can move out of the bottom bayonet of the connecting ring 504, thereby releasing the rotational limit of the connecting ring 504.

[0028] The above-mentioned is only the 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 filtration device, comprising a filter pool (1), a water distribution tank (2) is arranged on one side of the filter pool (1), a backwash pipe (3) is arranged at the bottom of the filter pool (1), a drainage tank (4) is arranged at the bottom of the water distribution tank (2), and the drainage tank (4) is connected to the bottom of the filter pool (1) through a drainage pipe (7), characterized in that: It also comprises a limiting mechanism (5) arranged on the water distribution tank (2) and the filter material pool (1); the limiting mechanism (5) comprises a limiting unit and a connecting unit; the connecting unit comprises a partition (501), the partition (501) is vertically slidably mounted on one side of the water distribution tank (2) and located on the inner side of the filter material pool (1), at least one filter head (6) is mounted on the partition (501), and water inlets corresponding to the positions and numbers of the filter heads (6) are opened on the side wall of the water distribution tank (2).

2. A marine aquaculture tailwater filtration device according to claim 1, characterized in that: The connection unit further comprises a rotating ring (502), a pressing rod (503), and a connecting ring (504); the rotating ring (502) is rotatably mounted on the top of the partition (501), and the rotating ring (502) is used to synchronously drive the connecting ring (504) to rotate; the pressing rod (503) is vertically slidably mounted on the inner wall of the partition (501) and penetrates the partition (501) to the outside of the partition (501), and the pressing rod (503) is used to synchronously drive the rotating ring (502) to rotate; the connecting ring (504) is fixed to the bottom of the rotating ring (502) and extends to the inside of the partition (501), and the connecting ring (504) is used to provide a limit for the connection between the water distribution tank (2) and the partition (501).

3. A marine aquaculture tailwater filtration device according to claim 2, characterized in that: The limiting unit comprises a limiting block (505), a positioning rod (506), a spring (507), and an annular bayonet (508); the limiting block (505) is vertically slidably mounted inside the partition (501) and extends to the inner wall of the connecting ring (504); the limiting block (505) is used to provide a limit for the rotation of the connecting ring (504); the positioning rod (506) is fixed to the inner wall of the partition (501) and passes through the limiting block (505); the positioning rod (506) Used to provide guidance for the vertical movement of the limit block (505); the two ends of the spring (507) are respectively clamped on the bottom of the limit block (505) and the inner wall of the partition (501), and the spring (507) is used to provide an extrusion elastic force for the limit block (505) to always move upward; the annular bayonet (508) is opened on the inner side of the top of the water distribution box (2) and passes through the water distribution box (2), and the annular bayonet (508) is used to provide space for inserting one end of the connecting ring (504).

4. A marine aquaculture tailwater filtration device according to claim 3, characterized in that: The outer wall of the limit block (505) is in an "L"-shaped structure as a whole, and the inner wall of the partition (501) is formed with a sliding groove for the limit block (505) to move vertically.

5. A marine aquaculture tailwater filtration device according to claim 3, characterized in that: One end of the transverse rod of the limit block (505) coincides with the vertical movement trajectory of the pressing rod (503), and the inner wall of the partition plate (501) is formed with a sliding groove for the vertical movement of the pressing rod (503).

6. A marine aquaculture tailwater filtration device according to claim 3, characterized in that: The inner wall of the partition (501) is formed with a rotation groove for the connection ring (504) to rotate, the outer wall of the connection ring (504) is in a semicircular ring state as a whole, and the bottom of the connection ring (504) is provided with a bayonet for the vertical rod of the limit block (505) to be inserted.

7. A marine aquaculture tailwater filtration device according to claim 3, characterized in that: The outer wall of the shaft of the pressing rod (503) is provided with a protrusion extending to the inner wall of the rotating ring (502), and the outer wall of the partition (501) is connected to a filter head (6) for primary filtering of sewage via threads.

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