Aquaculture tail water pollutant settling device

Abstract

The utility model relates to the technical field of water treatment, and discloses an aquaculture tail water pollutant settling device which comprises a settling pond, a drainage plate is fixedly connected to one side of the settling pond, a filling layer is arranged at the bottom of the settling pond, and an L-shaped partition plate is fixedly connected to the inner wall of the settling pond and located at the top of the filling layer. When the aquaculture tail water pollutant settling device is used, only the aquaculture tail water needs to be injected into the settling pond from the position of the drainage plate, the injected tail water firstly falls onto the filling layer, and the tail water flows out from one side, far away from the drainage plate, of the partition plate after being buffered by the filling layer; due to blocking of the partition plate, tail water falling from one side of the partition plate cannot disturb water rising from the other side of the partition plate, so that the water located on the side, away from the drainage plate, of the partition plate can be leveled down more quickly, pollutant sedimentation is facilitated, and the sedimentation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment, in particular to a device for settling pollutants in tail water of aquaculture. Background Art

[0002] Aquaculture tailwater refers to the aquaculture water that is no longer used and is discharged from the aquaculture system (including aquaculture ponds, nursery ponds, factory workshops, etc.) to natural waters during or after the aquaculture process. Since these aquaculture waters contain a lot of pollutants (such as leftover bait, fish feces, etc.), if these pollutants are not treated and the aquaculture water is directly discharged into natural waters, it is easy to cause eutrophication of the water body, thereby causing environmental pollution. Therefore, before discharging the aquaculture tailwater, it is generally necessary to carry out sedimentation treatment on the aquaculture tailwater to avoid pollution of natural waters. When the tailwater is sedimented, a sedimentation device is often used for treatment.

[0003] As in the prior art, a patent with a patent authorization announcement number of CN212757626U discloses a three-stage sedimentation and filtration device for aquaculture tail water, comprising a first-stage sedimentation tank, a second-stage sedimentation tank and a third-stage sedimentation tank, wherein the lower ends of the first-stage sedimentation tank and the second-stage sedimentation tank are both arranged in a V shape, and the first-stage sedimentation tank and the second-stage sedimentation tank are connected by a first pipe, and the second-stage sedimentation tank and the third-stage sedimentation tank are connected by a second pipe, an inlet pipe is installed on one side of the upper end of the first-stage sedimentation tank, a drain pipe is installed on one side of the upper end of the third-stage sedimentation tank, and floating bed plants are installed on the bottom of the first-stage sedimentation tank and the second-stage sedimentation tank. The three-stage sedimentation and filtration device for aquaculture tail water collects the tail water uniformly into the three-stage sedimentation tank for sedimentation and filtration, and settles organic suspended matter, residual feces, sludge and other substances in the tail water, with good sedimentation effect, simple construction, stable operation and simple system maintenance.

[0004] Although the sedimentation filtration device in the above patent has a good sedimentation effect, is simple to construct, runs smoothly, and has simple system maintenance, it needs to be left to stand for a certain period of time during sedimentation to allow the water body to be in a static state, and then allow the suspended matter in the water body to settle to the bottom of the device. Otherwise, the suspended matter in the tail water will easily flow with the water body, resulting in it being unable to achieve the desired sedimentation effect. Therefore, the existing sedimentation filtration device requires a long time for sedimentation, and it is difficult to improve the sedimentation efficiency. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an aquaculture tail water pollutant sedimentation device to solve the problems raised by the background technology, shorten the sedimentation time of the device, and improve the sedimentation efficiency.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for settling pollutants in aquaculture tail water, comprising a sedimentation tank, a drainage plate is fixedly connected to one side of the sedimentation tank, a filling layer is provided at the bottom of the sedimentation tank, a partition is fixedly connected to the inner wall of the sedimentation tank, the partition is L-shaped, and the partition is located on the top of the filling layer.

[0007] Furthermore, two guide plates are fixedly connected to one side of the sedimentation tank close to the drainage plate, and the two guide plates are both inclined and staggered.

[0008] Furthermore, an inclined plate is fixedly connected to the inner wall of the sedimentation tank on the side away from the guide plate, and the horizontal height of the inclined plate at one end close to the guide plate is smaller than the horizontal height of the inclined plate at one end away from the guide plate.

[0009] Furthermore, a water outlet plate is fixedly connected to the outer wall of the sedimentation tank on a side away from the drainage plate.

[0010] Furthermore, both ends of the guide plate are provided with card slots, the insides of the card slots are slidably connected with card blocks, the opposite surfaces of the two card blocks are fixedly connected with frames, and the middle position of the frame is fixedly connected with a filter screen.

[0011] Furthermore, a handle is fixedly connected to the top of the frame, and the handle is U-shaped.

[0012] Furthermore, the interior of the guide plate is V-shaped, and the end of the block is trapezoidal.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] When using this aquaculture tail water pollutant sedimentation device, it is only necessary to inject the aquaculture tail water into the sedimentation tank from the drainage plate position. The injected tail water will first fall on the filling layer. After being buffered by the filling layer, the tail water will flow out from the side of the partition away from the drainage plate. Since the filling layer slows down the water flow speed and there is a barrier of the partition, the tail water falling on one side of the partition will not disturb the water rising on the other side of the partition. Therefore, the water on the side of the partition away from the drainage plate can calm down faster, which is convenient for pollutants to settle and improves sedimentation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a partial cross-sectional view of the utility model as a whole;

[0017] Figure 3 It is a structural schematic diagram of the filter screen of the utility model.

[0018] In the figure: 1. sedimentation tank; 2. drainage plate; 3. filter screen; 4. frame; 5. block; 6. handle; 7. guide plate; 8. filling layer; 9. partition; 10. inclined plate; 11. water outlet plate. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] See also Figure 1-3 A device for settling pollutants from tail water of aquaculture comprises a sedimentation tank 1, a drainage plate 2 is fixedly connected to one side of the sedimentation tank 1, a filling layer 8 is arranged at the bottom of the sedimentation tank 1, a partition 9 is fixedly connected to the inner wall of the sedimentation tank 1, the partition 9 is L-shaped, and the partition 9 is located on the top of the filling layer 8.

[0021] The aquaculture tail water pollutant sedimentation device in the utility model, when in use, only needs to inject the aquaculture tail water from the drainage plate 2 into the sedimentation tank 1. The injected tail water will first fall on the filling layer 8. After being buffered by the filling layer 8, the tail water will flow out from the side of the partition 9 away from the drainage plate 2. Since the filling layer 8 slows down the water flow speed and is blocked by the partition 9, the tail water falling on one side of the partition 9 will not disturb the water body rising on the other side of the partition 9. Therefore, the water body on the side of the partition 9 away from the drainage plate 2 can calm down faster, which is convenient for pollutant sedimentation and improves sedimentation efficiency. In addition, in the utility model, the structure of the sedimentation tank 1 is similar to the prior art, and the patent authorization announcement number is CN212757626U, which discloses a three-stage sedimentation and filtration device for aquaculture tail water, so it will not be elaborated here.

[0022] like Figure 1 and Figure 2 As shown, two guide plates 7 are fixedly connected to one side of the sedimentation tank 1 close to the guide plate 2. The two guide plates 7 are both inclined and staggered.

[0023] Specifically, when the tail water of aquaculture flows into the sedimentation tank 1 through the drainage plate 2, the water body will first contact the guide plate 7, and the guide plate 7 will guide the water body to reduce the impact of the water body on the original water body when it falls, so as to avoid the pollutants that have been settled from being raised again.

[0024] like Figure 1 and Figure 2 As shown, an inclined plate 10 is fixedly connected to the inner wall of the sedimentation tank 1 away from the guide plate 2 , and the horizontal height of the inclined plate 10 close to the guide plate 2 is smaller than the horizontal height of the inclined plate 10 away from the guide plate 2 .

[0025] Specifically, when water flows into the side of the baffle 9 away from the drainage plate 2, the inclined plate 10 will restrict the surging water so that the water will not continue to surge upward. At the same time, after the water passes through the gap between the baffle 9 and the inclined plate 10, the flow rate of the water will suddenly decrease due to the expansion of the space, so that the pollutants flowing with the water can be settled, thereby improving the sedimentation effect.

[0026] like Figure 1 and Figure 2 As shown, a water outlet plate 11 is fixedly connected to the outer wall of the sedimentation tank 1 on the side away from the drainage plate 2 .

[0027] Specifically, the settled water will flow out through the water outlet plate 11, which is convenient for subsequent other treatments.

[0028] like Figure 1 , Figure 2 and Figure 3 As shown, both ends of the guide plate 2 are provided with a card slot, the inside of the card slot is slidably connected with a card block 5, the opposite surfaces of the two card blocks 5 are fixedly connected to the frame 4, and the middle position of the frame 4 is fixedly connected to the filter screen 3.

[0029] Specifically, the filter screen 3 is connected to the drainage plate 2 through the clamping block 5 and the clamping slot, and the large particle impurities in the aquaculture tail water are intercepted by the filter screen 3, so that the sedimentation tank 1 does not need to be cleaned frequently, thereby reducing the cleaning frequency.

[0030] like Figure 1 , Figure 2 and Figure 3 As shown, a handle 6 is fixedly connected to the top of the frame 4, and the handle 6 is arranged in a U shape. It is simpler and more convenient to grasp the filter screen 3 through the U-shaped handle 6.

[0031] like Figure 1 and Figure 2 As shown, the interior of the guide plate 2 is V-shaped, and the end of the block 5 is trapezoidal. The V-shaped guide plate 2 can accumulate a certain amount of water, so that some of the intercepted impurities can be mixed in the water, reducing the frequency of cleaning the filter 3, and the trapezoidal block 5 has a better limiting effect.

[0032] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A device for settling pollutants in tail water of aquaculture, comprising a sedimentation tank (1), characterized in that: A drainage plate (2) is fixedly connected to one side of the sedimentation tank (1), a filling layer (8) is provided at the bottom of the sedimentation tank (1), a partition (9) is fixedly connected to the inner wall of the sedimentation tank (1), the partition (9) is L-shaped, and the partition (9) is located on the top of the filling layer (8).

2. The aquaculture tailwater pollutant sedimentation device according to claim 1 is characterized in that: Two guide plates (7) are fixedly connected to one side of the sedimentation tank (1) close to the guide plate (2); both guide plates (7) are arranged at an inclination, and the two guide plates (7) are arranged in a staggered manner.

3. The aquaculture tailwater pollutant sedimentation device according to claim 1, characterized in that: An inclined plate (10) is fixedly connected to the inner wall of the sedimentation tank (1) on the side away from the guide plate (2), and the horizontal height of the inclined plate (10) at one end close to the guide plate (2) is smaller than the horizontal height of the inclined plate (10) at one end away from the guide plate (2).

4. The aquaculture tailwater pollutant sedimentation device according to claim 1, characterized in that: A water outlet plate (11) is fixedly connected to the outer wall of the sedimentation tank (1) on a side away from the drainage plate (2).

5. The aquaculture tailwater pollutant sedimentation device according to claim 1, characterized in that: Both ends of the guide plate (2) are provided with a card slot, the interior of the card slot is slidably connected with a card block (5), the opposite surfaces of the two card blocks (5) are fixedly connected to a frame (4), and the middle position of the frame (4) is fixedly connected to a filter screen (3).

6. The aquaculture tailwater pollutant sedimentation device according to claim 5, characterized in that: A handle (6) is fixedly connected to the top of the frame (4), and the handle (6) is U-shaped.

7. The aquaculture tailwater pollutant sedimentation device according to claim 5, characterized in that: The interior of the guide plate (2) is V-shaped, and the end of the clamping block (5) is trapezoidal.

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