High-density environment-friendly aquaculture net cage

Abstract

The invention relates to a high-density environment-friendly aquaculture net cage and belongs to the aquaculture field. The high-density environment-friendly aquaculture net cage comprises a rectangular net cage body with an upward opening; the left side wall and the right side wall of the net cage body are provided with mesh openings respectively; the right side of the net cage body is provided with a bubble generator and a bubble reflection plate; one end of the bubble generator is perpendicularly connected with the bottom of the right side wall of the net cage body; one end of the bubble reflection plate is connected with the top of the right side wall of the net cage body; the other end of the bubble reflection plate is connected with the other end of the bubble generator; floats which are connected with the front side wall and the rear side wall respectively are horizontally and symmetrically arranged outside the front side wall and the rear side wall of the net cage body respectively; the left end of the bottom of the net cage body is provided with a drainage opening; the drainage opening is connected with a drainage pipe which is arranged outside the net cage body; an air lift device is arranged in the drainage pipe. According to the high-density environment-friendly aquaculture net cage, the structure is simple, the installation is convenient, the pollution to a water body is small, and the high-density environment-friendly aquaculture net cage can be applied to the water source aquaculture.

Description

technical field [0001] The invention belongs to the field of aquaculture, in particular to a high-density environment-friendly breeding cage. Background technique [0002] In recent years, the aquatic cage aquaculture industry has developed rapidly. The so-called cage culture is a method in which a box of a certain shape and specification is placed in a water body suitable for farming to raise aquatic products such as fish and shrimp. Cage aquaculture is a new technology for intensive production of aquaculture in the world today. It has the advantages of high output, low cost, small investment, easy management, saving land, water and energy, and effectively developing large-water fisheries in rivers, lakes and reservoirs. [0003] However, in traditional net cages, the cleaning of fish feces is very troublesome. The cage needs to be cleaned repeatedly, and then the fish feces are discharged into the surrounding waters. This cleaning method is not only time-consuming and lab...

AI Technical Summary

Problems solved by technology

[0003] However, in traditional net cages, the cleaning of fish feces is very troublesome. The cage needs to be cleaned repeatedly, and then the fish feces are discharged into the surrounding waters. This cleaning method is not only time-consuming and laborious, but also reduces the transparency of the surrounding waters. The concentration of nutrients such as nitrogen and total phosphorus rises, causing great pollution to water bodies

Moreover, the traditional cages occupy a large area, the breeding density is low, and the water surface utilization rate is low.

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