An oxygenation and purification device for a factory-scale large-mouth bass breeding pond

Abstract

The utility model relates to an oxygenation and purification device of factoryization large mouth black bass breeding pond belongs to large mouth black bass breeding equipment technical field, the utility model discloses a middle net inclined plane, collection hopper, aeration nanometer pipe etc. Form oxygenation and purification device through setting in the breeding pond, can form the circulation of fluid in the breeding pond and provide the oxygen-rich water, in the process of the aeration oxygenation of breeding pond, realize the collection to the granular matter such as excrement and residual feed, greatly alleviate the negative influence to pond water, and the water quality is improved obviously.

Description

Technical Field

[0001] This utility model relates to an oxygenation and purification device for a factory-scale largemouth bass farming pond, belonging to the technical field of largemouth bass farming equipment. Background Technology

[0002] Land-based facility fisheries are an intensive, high-density aquaculture model promoted by the state in recent years. By integrating modern engineering equipment, electromechanical, bioengineering, and environmental protection technologies, it achieves high and stable fish yields in a controlled environment. Compared to traditional ponds, it requires less land (more than 20 times less for the same yield), facilitates centralized management, and allows the application of modern electromechanical and automatic control technologies. Aquaculture wastewater can be centrally treated, reducing pollution and environmental impact.

[0003] Because land-based facility aquaculture is expensive, it is only suitable for raising some fish species with high economic value and large sales volume, and species that can be promoted nationwide. Largemouth bass is the main species for land-based facility aquaculture.

[0004] Currently, land-based facilities mainly employ factory-style circular or square ponds equipped with aquaculture equipment, pipeline systems, and wastewater treatment technologies and equipment. This ensures high and stable yields while allowing for the recycling or compliant discharge of aquaculture wastewater. Wastewater treatment is a crucial and critical aspect of facility-based aquaculture. High-density aquaculture inevitably involves large-scale feeding, resulting in substantial amounts of excrement suspended in the water daily. If not promptly removed, this wastewater quickly settles and decomposes, necessitating continuous purification of the aquaculture water. This purification process removes ammonia nitrogen, nitrite nitrogen, uneaten feed, and fish feces. Uneaten feed and fish feces, existing as particulate matter, are also major sources of water pollution. Timely removal effectively reduces the pressure on water pollution and other purification equipment, improving efficiency.

[0005] However, the current methods for removing particulate matter from aquaculture wastewater mainly include "three ponds and two dams," microfiltration machines, and filtration. These methods all require specialized equipment and cannot directly treat the particles in the ponds. Utility Model Content

[0006] The purpose of this invention is to solve the problem that a large amount of uneaten feed and feces cannot be discharged in time during the current largemouth bass adult fish farming or large-sized fry cultivation, which pollutes the water. This invention provides a sewage discharge device that uses aeration to oxygenate the pond water. While aerating the pond water, the airflow drives the water flow, causing the pond water to circulate up and down, so that the particulate matter is separated, settled, collected and discharged after being discharged.

[0007] This utility model provides an oxygenation and purification device for industrialized largemouth bass farming ponds, comprising: The breeding pond has a main water inlet pipe and a main sewage outlet pipe laid at the bottom. The inclined mesh is inclined downward and installed on one side of the inner wall of the aquaculture pond. The bottom of the inclined mesh and the bottom of the aquaculture pond have a first gap as a water inlet. A collection hopper is set in the working space formed between the inclined surface of the central mesh and the inner wall of the aquaculture pond, and a second gap is left between the bottom of the collection hopper and the bottom of the aquaculture pond; Aeration nanotubes are arranged at the bottom of the working space and near the water inlet.

[0008] Furthermore, the aquaculture pond is provided with an upper frame and a lower frame at the top and bottom, respectively, and both the upper frame and the lower frame are U-shaped frame structures.

[0009] Furthermore, the thickness of both the upper and lower frames of the pool is greater than twice the thickness of the pool wall.

[0010] Furthermore, the upper and lower parts of the inclined surface of the mesh are both solid surfaces, while the middle part is a dense mesh surface.

[0011] Furthermore, the ratio of the distance from the bottom edge of the inclined mesh to the inner wall of the aquaculture pond to the height of the inclined mesh is 5:7.

[0012] Furthermore, the collection hopper is a triangular pyramidal structure with a bottom slit, and is positioned above the pool drain pipe, which is connected to the main drain pipe.

[0013] Furthermore, the aeration nanotubes are disposed at the bottom of the aquaculture pond between the inlet and the main sewage pipe.

[0014] Furthermore, the aeration nanotubes are arranged in a meandering parallel pattern along the length of the first slit.

[0015] The beneficial effects of this utility model are: This invention forms an oxygenation and purification device by setting up components such as a central mesh inclined surface, a collection hopper, and aeration nanotubes in the aquaculture pond. It can form a fluid circulation in the aquaculture pond and provide oxygen-rich water. During the process of aeration and oxygenation in the aquaculture pond, it can collect particulate matter such as feces and uneaten feed, which greatly reduces the negative impact on the pond water and significantly improves the water quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure in one embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of a breeding pond in one embodiment of the present invention; Figure 3 This is a schematic diagram showing the position of the inclined surface of the central mesh in one embodiment of this utility model; Figure 4 This is a schematic diagram showing the position of the aeration nanotubes in one embodiment of the present invention; Figure 5This is a schematic diagram showing the positions of the collecting hopper and the aeration nanotubes in one embodiment of the present invention.

[0017] Figure 6 This is a schematic diagram of the structure of the collection bucket in one embodiment of the present invention.

[0018] In the diagram: 1. Aquaculture pond; 2. Sloping mesh; 3. Collection hopper; 4. Aeration nanotubes; 5. Water inlet; 6. Main water inlet pipe; 7. Main sewage outlet pipe; 8. Seamed pipe. Detailed Implementation

[0019] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Specifically, the terms "first position" and "second position" refer to two different positions.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Example 1 This utility model provides an oxygenation and purification device for a factory-scale largemouth bass farming pond. The main structure is a farming pond 1, which also includes a central mesh inclined surface 2, a collection hopper 3, and aeration nanotubes 4. Specifically, the farming pond 1 has a rectangular structure, with a main inlet pipe 6 and a main outlet pipe 7 laid at its bottom. In some embodiments, the farming pond 1 includes an upper frame, a lower frame, a bottom surface, four sides, and side strips. The upper frame and lower frame are both U-shaped frame structures, fixed to the top outer edges of the four sides.

[0023] In the examples shown in Figures 1 and 2, both the upper and lower frames of the pool are 10 cm wide and more than twice the wall thickness of the aquaculture pool 1. Their planes are perpendicular to the wall plane of the aquaculture pool 1 and are bonded together for a securing effect. The lower frame, like the upper frame, is bonded to the four edges extending beyond the four sides of the bottom surface, serving a reinforcing function. The side strips also provide reinforcement.

[0024] In the example shown in Figure 3, the inclined mesh surface 2 is inclined downwards on one side of the inner wall of the aquaculture pond 1. A first gap is left between the bottom of the inclined mesh surface 2 and the bottom of the aquaculture pond 1, serving as a water inlet 5. The upper and lower parts of the inclined mesh surface 2 are solid surfaces, while the middle part is a dense mesh surface. The ratio of the distance from the bottom edge of the inclined mesh surface 2 to the inner wall of the aquaculture pond 1 to the height of the inclined mesh surface 2 is 5:7. A working space is formed between the inclined mesh surface 2 and the inner wall of the aquaculture pond 1, and the water inlet 5 connects the working space to other spaces within the aquaculture pond 1.

[0025] Preferably, the upper 1 / 4 and lower 1 / 4 of the inclined surface 2 are both solid surfaces, and the middle part is a dense mesh surface.

[0026] Preferably, the distance from the bottom edge of the inclined surface 2 of the mesh to the inner wall of the aquaculture pond 1 and the height of the inclined surface 2 of the mesh are 0.5m and 0.7m, respectively.

[0027] In some embodiments, the collection hopper 3 is positioned within the working space formed between the inclined surface 2 of the central mesh and the inner wall of the aquaculture pond 1. In the examples shown in Figures 5 and 6, a second gap is left between the bottom of the collection hopper 3 and the bottom of the aquaculture pond 1. The collection hopper 3 is a triangular pyramidal structure with a bottom slit, positioned above the pond drain pipe, which is connected to the main drain pipe 7. Preferably, the collection hopper 3 is an elongated funnel with an upper opening width of approximately 30 cm, a length equal to the internal length of the aquaculture pond 1, and a height of 26 cm. The bottom of the funnel has a 0.2 cm wide bottom slit, below which is a slit tube with a diameter of 15 cm. The slit of the slit tube is the same size as the bottom slit of the collection hopper 3, making the area of ​​the slit similar to the cross-sectional area of ​​the (slit) tube. The upper opening of the collection hopper 3 is close to the pond wall. Aeration nanotubes 4 are arranged at the bottom of the working space and near the inlet 5.

[0028] In the examples of Figures 4 and 5, the aeration nanotubes 4 are disposed at the bottom of the aquaculture pond 1 between the inlet 5 and the main drain pipe 7, and the aeration nanotubes 4 are arranged in a meandering parallel pattern along the length of the first gap.

[0029] The working principle of this invention is as follows: Opening the aeration pipe valve of the aquaculture pond 1 inflates the aeration nanotubes 4. The microbubbles discharged from the aeration nanotubes 4 rise to the surface, oxygenating the water and causing it to flow upwards. The water flows upwards through the gap between the collection hopper 3 and the lower solid surface of the inclined mesh 2, increasing the oxygen content. This oxygen-rich water continues to move upwards and flows out through the mesh of the inclined mesh 2, entering the upper middle part of the aquaculture pond 1 for the largemouth bass to breathe. Then, under the influence of gravity and the opposite side of the aquaculture pond 1, it flows downwards back into the working space from the inlet 5 at the lower part of the inclined mesh 2. This process repeats continuously. During the upward flow, particles cannot pass through the mesh and continue upwards until the water flow weakens at the upper solid surface of the inclined mesh 2. Under gravity, they fall into the collection hopper 3. The main drain pipe 7 is opened periodically, and the wastewater is discharged through a slotted pipe.

[0030] During the aquaculture process, compared with the original aquaculture conditions at the same density, the ammonia nitrogen and nitrite in the water were significantly reduced, and the water transparency was significantly increased.

[0031] Example 2 An oxygenation and purification device with the same structure as Embodiment 1 is provided, but with the following dimensions changed: The breeding pond is 1.2 meters high, about 2 meters wide, and generally 6 meters long. The width of the upper and lower frames of the pond is 6 centimeters.

[0032] The top of the collection hopper is about 30 cm wide, the length is the same as the inside of the breeding pond, and the height is 25 cm. The bottom has a 0.2 cm wide slit, and a slit tube with a diameter of 15 cm is connected below the slit.

[0033] During the aquaculture process, compared with the original aquaculture conditions at the same density, the ammonia nitrogen and nitrite in the water were significantly reduced, and the water transparency was significantly increased.

[0034] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the claims.

Claims

1. An oxygenation and purification device for a factory-scale largemouth bass farming pond, characterized in that, include: The breeding pond has a main water inlet pipe and a main sewage outlet pipe laid at the bottom. The inclined mesh is inclined downward and installed on one side of the inner wall of the aquaculture pond. The bottom of the inclined mesh and the bottom of the aquaculture pond have a first gap as a water inlet. A collection hopper is set in the working space formed between the inclined surface of the central mesh and the inner wall of the aquaculture pond, and a second gap is left between the bottom of the collection hopper and the bottom of the aquaculture pond; Aeration nanotubes are arranged at the bottom of the working space and near the water inlet.

2. The oxygenation and purification device according to claim 1, characterized in that, The aquaculture pond is provided with an upper frame and a lower frame at the top and bottom, respectively, and both the upper frame and the lower frame are U-shaped frame structures.

3. The oxygenation and purification device according to claim 2, characterized in that, The thickness of both the upper and lower frames of the pond is more than twice the thickness of the pond wall.

4. The oxygenation and purification device according to claim 1, characterized in that, The upper and lower parts of the inclined surface of the mesh are both solid surfaces, while the middle part is a dense mesh surface.

5. The oxygenation and purification device according to claim 4, characterized in that, The ratio of the distance from the bottom edge of the inclined mesh to the inner wall of the aquaculture pond to the height of the inclined mesh is 5:

7.

6. The oxygenation and purification device according to claim 1, characterized in that, The collection hopper is a triangular pyramidal structure with a bottom slit, and is located above the pool drain pipe, which is connected to the main drain pipe.

7. The oxygenation and purification device according to claim 6, characterized in that, The aeration nanotubes are installed at the bottom of the aquaculture pond between the water inlet and the main sewage pipe.

8. The oxygenation and purification device according to claim 7, characterized in that, The aeration nanotubes are arranged in a meandering parallel pattern along the length of the first slit.

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