Filtering-type sleeve-type net cage for freshwater aquaculture

Abstract

The invention discloses a filtering-type sleeve-type net cage for freshwater aquaculture. The filtering-type sleeve-type net cage for the freshwater aquaculture comprises an annular floating platform,a net cage, an outer shell, a filtering assembly, multiple first water inlet pipes, multiple second water inlet pipes, multiple first filtering nets, multiple pairing slide grooves and second filtering nets, wherein the net cage and the outer shell are arranged below the annular floating platform in a mutual sleeving mode, and the filtering assembly comprises multiple water inlets; the first filtering nets are arranged at the cross sections of the multiple first water inlet pipes, the water outlets are formed in the annular floating platform and are arranged close to the junction of the outershell and the annular floating platform; the pairing slide grooves are formed in the multiple first water inlet pipes; the first filtering nets are detachably arranged on the cross sections of the first water inlet pipes through multiple pairing slide rods; the second filtering nets are arranged in the water outlets. By using the outer shell to control the circulation of the water body in a semi-closed state and through the arrangement of the effective filtering assembly, it is guaranteed that the water quality of the breeding water in the net cage and the water quality of the water outside the outer shell are maintained in a good state, and it is avoided that the water is polluted.

Description

Technical field [0001] The invention relates to the technical field of aquaculture, in particular to a filter-type sleeve net cage for freshwater aquaculture. Background technique [0002] As the scale of fishery and aquaculture continues to expand, metabolites and residual bait organic matter have increased dramatically, and untreated aquaculture wastewater is directly discharged, causing great pollution and damage to environmental waters. [0003] For this reason, the recirculating aquaculture system integrating many technologies has become an important research direction for the sustainable development of aquaculture with its own characteristics. The basic water treatment process used in the breeding system, as the process includes physical filtration, biological treatment, aeration, etc., the process is complicated, the investment in facilities and equipment is large; and the water cycle process is driven by machinery, and the energy consumption is high, which makes it widely u...

AI Technical Summary

Problems solved by technology

The basic water treatment process used in this breeding system, because the process includes physical filtration, biological treatment, oxygenation and other links, the process is complicated and the investment in facilities and equipment is large; and the water cycle process is all mechanically driven, and the energy consumption is high, making it widely used and popularized. restrict

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