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Flexible liftable cage

A lifting and net cage technology, which is applied in fish farming, application, climate change adaptation, etc., can solve the problem of transporting residual bait and fish excrement, overloading of the environmental capacity of aquaculture water, and high density of shallow water cage culture, etc. problem, to achieve good anchoring effect, good anti-wave effect and low cost

Inactive Publication Date: 2012-06-20
ZHEJIANG OCEAN UNIV
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  • Claims
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AI Technical Summary

Problems solved by technology

Affected by economic interests, the density of shallow-water cage culture in some coastal areas of China is relatively high, resulting in poor water flow and severe hypoxia in some cultured water bodies. In addition, residual bait and fish excrement cannot be quickly transported out with the water body, resulting in the environmental capacity of the cultured water body. Serious overload

Method used

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  • Flexible liftable cage
  • Flexible liftable cage
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Examples

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Embodiment

[0014] Example: refer to Figure 1 to Figure 2 , a flexible lifting net cage, which has a fixed frame 1, and a fully enclosed netting 3 is installed on the fixed frame 1; the lower side of the fixed frame 1 is connected with a self-sinking frame 2; the upper part of the netting 3 is uniformly connected with floating balls 4; Clothes 3 tops are also connected with steady-state float 5 through the traction rope 6 of controllable length. Adopting the self-sinking frame 2 can save the anchoring system, reduce the cost, and reduce the difficulty of construction. Under the double comprehensive effect of the self-weight of the floating ball 4 and the fully enclosed net clothing 3, it is in a drooping and tense state, thereby maintaining a larger effective water body for cultivation. The remaining buoyancy provided by the steady-state float 5 enables the netting 3 to be raised and lowered according to the length regulation of the traction rope 6, thereby satisfying the artificial reg...

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Abstract

The invention discloses a flexible liftable cage, which is provided with a fixed frame. A fully-closed net is mounted on the fixed frame. Self-sinking frames are connected to the bottom of the fixed frame. Float balls are evenly distributed and connected onto the top of the net. Stable floats are also connected to the top of the net through controllable-length traction ropes. Compared with the prior art, the flexible liftable cage has the advantages that an anchoring system can be omitted, cost can be reduced, construction difficulty can be lowered, the cage is dropped and tensioned to keep huge effective culture water under the comprehensive gravitational action of the float balls and the fully-closed net, and the like. The flexible liftable cage is low in cost, effective in wave resistance, convenient in operation, high in effective culture capacity, convenient in construction and effective in anchorage.

Description

technical field [0001] The invention relates to a breeding device, in particular to a flexible lifting net cage. Background technique [0002] As a traditional farming method, shallow water cage culture is mainly concentrated in semi-enclosed bays. Affected by economic interests, the density of shallow-water cage culture in some coastal areas of China is relatively high, resulting in poor water flow and severe hypoxia in some cultured water bodies. In addition, residual bait and fish excrement cannot be quickly transported out with the water body, resulting in the environmental capacity of the cultured water body. The overload phenomenon is serious. This farming method not only pollutes the water quality of sea areas, but also affects the quality of farmed fish, and has also become one of the main factors that induce coastal red tides. Therefore, it is the only way for the sustainable development of cage culture to gradually transfer the cage culture from the inner bay and...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 桂福坤徐梅英朱爱意
Owner ZHEJIANG OCEAN UNIV
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