Closed cages for salmon and trout farming

Abstract

The utility model relates to the technical field of aquaculture cage technology, in particular to a closed aquaculture cage for salmon and trout, comprising a cage body, water inlet pipes are installed on both sides of the upper part of the cage body, a plurality of first water outlets are arranged in a circular array on the lower outer wall of the cage body, the water inlet end height of the water inlet pipe is lower than the habitat depth of sea lice, a fixing ring is fixedly connected to the inner wall of the lower part of the cage body, a grille is engaged with the fixing ring, and the cage body is a closed structure; water circulation is formed in the cage body, and the grille plays a filtering role, thereby maintaining a good aquaculture environment in the cage body, thereby realizing closed cage aquaculture, which can not only realize fine feeding and reduce feed waste, but also effectively prevent the escape of cultured salmon and trout, and the closed structure eliminates the interaction between cultured fish and wild fish, provides a more ideal growth environment for salmon and trout, and significantly improves the aquaculture efficiency.

Description

Technical Field

[0001] The utility model relates to a breeding cage, in particular to a closed breeding cage for salmon and trout, belonging to the technical field of breeding cage technology. Background Art

[0002] With the rapid development of aquaculture, how to achieve its sustainable growth has become an important issue in the industry. Especially in the process of domestication of salmon and trout, a technology is needed that can effectively control the breeding environment, reduce external interference, and improve breeding efficiency. The existing domestication methods are mainly divided into two types: land domestication ponds and open cages.

[0003] However, terrestrial acclimation ponds suffer from poor water quality control and high investment costs for circulating water equipment, while open cages are prone to escape of farmed fish, disturbance by wild fish, and environmental factors such as sea lice and algal blooms. Utility Model Content

[0004] The purpose of the utility model is to provide a closed salmon and trout breeding cage in order to solve the above-mentioned problem, so that water circulation is formed in the cage body, and the grille plays a filtering role, thereby maintaining a good breeding environment in the cage body, thereby realizing closed cage breeding, which can not only achieve fine feeding and reduce feed waste, but also effectively prevent the escape of farmed salmon and trout. The closed structure eliminates the interaction between farmed fish and wild fish, provides a more ideal growth environment for salmon and trout, and significantly improves breeding efficiency.

[0005] The utility model achieves the above-mentioned purpose through the following technical scheme. A closed salmon and trout breeding cage comprises a cage body, water inlet pipes are installed on both sides of the upper part of the cage body, a plurality of first water outlets that can be controlled to open and close are arranged in a circular array on the outer wall of the lower part of the cage body, the water inlet end height of the water inlet pipe is lower than the habitat depth of sea lice, a fixing ring is fixedly connected to the inner wall of the lower part of the cage body, a grille is clamped on the fixing ring, and the cage body is a closed structure.

[0006] Preferably, a bracket is installed on the upper outer wall of the cage body, a water pump is fixedly connected to the top of the bracket, the water inlet of the water pump is connected to a water inlet pipe, the water inlet pipe is fixed to the bottom end of the bracket, and a filtering device is provided at the water inlet at the lower end of the water inlet pipe.

[0007] Preferably, two brackets are installed, and a water inlet pipe and a water pump are fixed on both brackets.

[0008] Preferably, the cross section of the fixing ring is a stepped structure, and the installation height of the fixing ring and the grille is lower than the height of the first water outlet.

[0009] Preferably, a second water outlet is provided at the bottom end of the net box body, and a filter sleeve is threadedly connected to the second water outlet.

[0010] Preferably, the net box body is an overall cylindrical structure, and the bottom end of the net box body is a spherical structure.

[0011] Preferably, a plurality of first through holes are formed on the grille, a plurality of second through holes are formed at the bottom end of the filter sleeve, and a diameter of the second through holes is smaller than a diameter of the first through holes.

[0012] The beneficial effects of the utility model are as follows: water inlet pipes are installed on both sides of the upper part of the cage body, a plurality of first water outlets are arranged in a circular array on the outer wall of the lower part of the cage body, the water inlet end height of the water inlet pipe is lower than the habitat depth of sea lice, a fixing ring is fixedly connected to the inner wall of the lower part of the cage body, a grille is engaged with the fixing ring, and the cage body is a closed structure; when the water height in the cage body exceeds the first water outlet, the water flow will be discharged from the first water outlet, and then the filtered clean water will enter from the upper part of the cage body through the water inlet pipe, thereby forming a water flow circulation, so that the sewage inside the cage body is continuously discharged, and the clean water is continuously injected into the cage body, the inner wall of the cage body is engaged with the grille through the fixing ring, and the excrement produced by salmon and trout is discharged. Feces and food residues will continue to sink and sink into the bottom of the cage body through the grille. Therefore, the detachable grille is easy to clean and replace, which can effectively prevent fish from escaping, isolate feed residues and feces, and better maintain water quality. At the same time, when dead fish appear in the cage body, the dead fish can be quickly taken out by lifting the grille upwards to prevent them from rotting and affecting the water quality. It is also easy to salvage and process, thereby maintaining a good breeding environment in the cage body, thereby realizing closed cage breeding, which can not only achieve fine feeding and reduce feed waste, but also effectively prevent the escape of farmed salmon and trout. The closed structure eliminates the interaction between farmed fish and wild fish, provides a more ideal growth environment for salmon and trout, and significantly improves breeding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a cross-sectional view of the utility model;

[0015] Figure 3 for Figure 2 An enlarged schematic diagram of part A is shown;

[0016] Figure 4 It is a structural schematic diagram of the spliced ​​grille of the utility model.

[0017] In the figure: 1. net box body; 2. first water outlet; 3. water inlet pipe; 4. water pump; 5. grille; 6. second water outlet; 7. fixing ring; 8. filter sleeve; 9. bracket; 10. first through hole; 11. second through hole; 12. filter device. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-Figure 4 As shown, a closed salmon and trout breeding cage comprises a cage body 1, water inlet pipes 3 are installed on both sides of the upper part of the cage body 1, a plurality of first water outlets 2 which can be controlled to open and close are arranged in a circular array on the upper outer wall of the lower part of the cage body 1, the water inlet end height of the water inlet pipe 3 is lower than the habitat depth of sea lice, a fixing ring 7 is fixedly connected to the inner wall of the lower part of the cage body 1, a grille 5 is engaged on the fixing ring 7, and the cage body 1 is a closed structure; when the water height in the cage body 1 exceeds the first water outlet 2, the water flow will be discharged from the first water outlet 2, and then the filtered seawater will enter from the upper part of the cage body 1 through the water inlet pipe 3, thereby forming a water flow circulation, so that the sewage inside the cage body 1 is continuously discharged, and the clean water is continuously injected into the cage body 1, and the inner wall of the cage body 1 is connected to the cage body 1 through the fixing ring 7 is engaged with the grille 5, and the feces and food residues produced by the salmon and trout will continue to sink and sink into the bottom of the cage body 1 through the grille 5. Therefore, the detachable grille 5 is convenient for cleaning and replacement, and can effectively prevent fish from escaping, isolate feed residues and feces, and better maintain water quality. At the same time, when dead fish appear in the cage body 1, the dead fish can be quickly taken out by lifting the grille 5 upwards to prevent it from rotting and affecting the water quality. It is also convenient for salvage and treatment, thereby maintaining a good breeding environment in the cage body 1, thereby realizing closed cage breeding, which can not only achieve fine feeding and reduce feed waste, but also effectively prevent the escape of farmed salmon and trout, and the closed structure eliminates the interaction between farmed fish and wild fish, provides a more ideal growth environment for salmon and trout, and significantly improves breeding efficiency.

[0020] As a technical optimization scheme of the utility model, a bracket 9 is installed on the upper outer wall of the cage body 1, and a water pump 4 is fixedly connected to the top of the bracket 9. The water inlet of the water pump 4 is connected to the water inlet pipe 3, and the water inlet pipe 3 is fixed to the bottom end of the bracket 9. Two brackets 9 are installed, and the water inlet pipe 3 and the water pump 4 are fixed on the two brackets 9; the setting of the bracket 9 is convenient for fixing the water pump 4 and the water inlet pipe 3, and the water pump 4 provides the water inlet pipe 3 with a pumping power and a high-efficiency filtering effect, thereby improving the efficiency and quality of water injection into the cage body 1. A filtering device 12 is provided at the water inlet of the lower end of the water inlet pipe 3, which is used to filter the incoming water and prevent impurities from entering the breeding area.

[0021] As a technical optimization solution of the present invention, the cross-section of the fixing ring 7 is a stepped structure, and the installation height of the fixing ring 7 and the grille 5 is lower than the height of the first water outlet 2; the setting of the fixing ring 7 facilitates the rapid fixing of the grille 5, and at the same time, the installation height of the fixing ring 7 and the grille 5 is lower than the height of the first water outlet 2, so that fish feces and food residues can be effectively filtered.

[0022] As a technical optimization solution of the utility model, a second water outlet 6 is opened at the bottom end of the cage body 1, and a filter sleeve 8 is threadedly connected to the second water outlet 6; it is convenient to filter and regularly clean fish feces and food residues without directly removing polluted water sources.

[0023] As a technical optimization solution of the utility model, the cage body 1 is an overall cylindrical structure, and the bottom end of the cage body 1 is a spherical structure, which facilitates fish feces and food residues to sink to the bottom end of the cage body 1.

[0024] As a technical optimization solution of the utility model, a plurality of first through holes 10 are provided on the grille 5, and a plurality of second through holes 11 are provided at the bottom end of the filter sleeve 8, wherein the diameter of the second through holes 11 is smaller than the diameter of the first through holes 10; the setting of the first through holes 10 can prevent fish from escaping and filter the water quality, and the second through holes 11 can prevent fish feces and food residues from being directly discharged with sewage.

[0025] When the utility model is used, the water pump 4 is first started. Under the action of the water pump 4, the water inlet pipe 3 draws clean water from a water source below the depth where sea lice live, and then enters the net cage body 1 through the water inlet pipe 3 after being filtered by the filter of the water pump 4. At the same time, a plurality of first water outlets 2 are evenly spaced at the lower part of the net cage body 1, so that the sewage of the net cage body 1 is discharged from the first water outlets 2, thereby forming a water flow circulation, so that the sewage inside the net cage body 1 is continuously discharged, and clean water is continuously injected into the net cage body 1, so that a good breeding environment is maintained in the net cage body 1. Thus, closed cage culture is realized, which can not only realize fine feeding and reduce feed waste, but also effectively prevent the escape of farmed salmon and trout, and the closed structure eliminates the interaction between farmed fish and wild fish, provides a more ideal growth environment for salmon and trout, and significantly improves the breeding efficiency; the inner wall of the cage body 1 is clamped with a grid 5 through a fixing ring 7, and the grid 5 can adopt a spliced ​​grid. When the spliced ​​grid is adopted, a support frame is set at the bottom; a plurality of first through holes 10 are opened on the grid 5, and the excrement and food residues produced by the salmon and trout are The fish will continue to sink and sink into the bottom of the cage body 1 through the first through hole 10 on the grille 5. Therefore, the detachable grille 5 is convenient for cleaning and replacement, and can effectively prevent fish from escaping, isolate feed residues and feces, and better maintain water quality. At the same time, when dead fish appear in the cage body 1, the dead fish can be quickly taken out by lifting the grille 5 upwards to prevent them from rotting and affecting the water quality, and at the same time, it is convenient for salvage and treatment; by opening a second water outlet 6 at the bottom of the cage body 1, the water at the bottom that is highly contaminated by food residues and feces flows out from the second water outlet 6 and passes through the filter sleeve 8. When the water flows out to the sewage pool, the filter sleeve 8 is convenient for isolating food residues and feces to avoid the inconvenience of purification when flowing out with sewage. When there is excessive sediment such as food residues and feces at the bottom of the cage body 1, the filter sleeve 8 is rotated to expose the second water outlet 6 to the outside, and then the bottom of the cage body 1 is regularly cleaned through the second water outlet 6. Various anti-corrosion, anti-aging technologies and high-efficiency and non-toxic anti-fouling technologies are adopted, which greatly improves the overall structural strength of the cage, prolongs the service life of the cage by several times, and greatly reduces the daily maintenance and operation costs.

[0026] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A closed salmon and trout breeding cage, comprising a cage body (1), characterized in that: Water inlet pipes (3) are installed on both sides of the upper part of the cage body (1); a plurality of first water outlets (2) that can be controlled to open and close are arranged in a circular array on the outer wall of the lower part of the cage body (1); the height of the water inlet end of the water inlet pipe (3) is lower than the habitat depth of sea lice; a fixing ring (7) is fixedly connected to the inner wall of the lower part of the cage body (1); a grille (5) is engaged on the fixing ring (7); and the cage body (1) is a closed structure.

2. The closed salmon and trout breeding cage according to claim 1, characterized in that: A bracket (9) is installed on the upper outer wall of the cage body (1); a water pump (4) is fixedly connected to the top of the bracket (9); a water inlet of the water pump (4) is connected to a water inlet pipe (3); the water inlet pipe (3) is fixed to the bottom end of the bracket (9); and a filtering device (12) is provided at the water inlet of the lower end of the water inlet pipe (3).

3. The closed salmon and trout breeding cage according to claim 2, characterized in that: Two brackets (9) are installed, and a water inlet pipe (3) and a water pump (4) are fixed on the two brackets (9).

4. The closed salmon and trout breeding cage according to claim 1, characterized in that: The cross section of the fixing ring (7) is a stepped structure, and the installation height of the fixing ring (7) and the grille (5) is lower than the height of the first water outlet (2).

5. The closed salmon and trout breeding cage according to claim 1, characterized in that: A second water outlet (6) is provided at the bottom end of the net box body (1), and a filter sleeve (8) is threadedly connected to the second water outlet (6).

6. The closed salmon and trout breeding cage according to claim 1, characterized in that: The net box body (1) is in an overall cylindrical structure, and the bottom end of the net box body (1) is in a spherical structure.

7. The closed salmon and trout breeding cage according to claim 5, characterized in that: The grille (5) is provided with a plurality of first through holes (10), and the bottom end of the filter sleeve (8) is provided with a plurality of second through holes (11), wherein the diameter of the second through holes (11) is smaller than the diameter of the first through holes (10).

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