An automatic ebb drying device for laver culture, a culture device and a tidal range automatic ebb drying method

Abstract

The invention provides an automatic ebb drying device for laver culture, a culture device and a method. The automatic ebb drying device for laver culture comprises a hollow lifting rod and a floating rod. One end of the hollow lifting rod is vertically and fixedly connected to the middle portion of the floating rod and the other end of the hollow lifting rod is provided with a plurality of tail wings used for stabilizing the hollow lifting rod in the circumferential direction of the rod body uniformly. The hollow lifting rod is sleeved with a large floater between the tail wings and the floating rod. Stay ropes are arranged between the large floater and the two ends of the floating rod. An ebb drying root cable used for lifting the floating rod together with the large floater penetrates through the inside of the hollow lifting rod along the axis of the rod body. With the automatic ebb drying device, automatic ebb drying and water falling of curtain nets can be realized, the ebb drying workload is reduced and the quality of lavers is improved; the tail wings and the stay ropes can improve the balance of the lifting rod. Contraction and release ropes are arranged, so that the ebb drying can be performed manually; ebb drying root cables and culture net field root cables are arranged, so that the wind and wave resistance of the whole culture device is improved; automatic ebb drying of laver culture net fields is realized by fully utilizing natural tides, so that the culture cost is reduced; mechanical harvesting is realized and the culture device can be used for deep sea culture and open sea culture.

Description

technical field [0001] The invention relates to a laver cultivation technology, in particular to a laver cultivation self-drying device, a cultivation device and a tidal range self-drying method. Background technique [0002] As coastal pollution continues to increase and expand, farming intensity continues to increase, nutrients are increasingly lacking, and laver blights are increasing. Coupled with the need for seaport construction, offshore farming has become increasingly impossible. From semi-floating seaweed cultivation in the intertidal zone, it has developed to pole-inserted laver cultivation; from the initial use of a pole of 7-8 meters, it has grown to 16-17 meters. However, the length and strength of the strut must be limited, which cannot meet the needs of deeper sea areas. [0003] The existing methods of fully floating raft culture laver include a "U" type full floating raft drying method, a tripod type full floating raft drying method and a flipping full floa...

AI Technical Summary

Problems solved by technology

However, the length and strength of the struts must be limited, which cannot meet the needs of deeper sea areas.

[0003] The existing methods of fully floating raft culture laver include a "U" type full floating raft drying method, a tripod type full floating raft drying method and a flipping full floating raft drying method, and these methods have the following Defects in several aspects: first, the above-mentioned breeding methods all require manual operation, which is labor-intensive and difficult to operate at sea.

The manually operated drying device is only fixed on the buoy in the laver cultivation area. As the laver field floats as a whole, there is no connection and fixed control between itself and the seabed. Therefore, the impact load on the root cable of the laver field is heavy, and the resistance to wind and waves is poor. , the floating raft made by manual operation, when supporting the net curtain, only supports the two end points of the net curtain. The force on the two points of the floating raft is unstable, and it is easy to roll over or tilt under the impact of wind and waves. It is not suitable for use in sea areas with strong wind and waves. The device Its own wind and wave resistance is also poor; third, the work is not thorough

When the manual operation is done, the wind and waves will cause the device to be unstable. Therefore, the center of gravity of these devices must be lowered. Under the action of the waves, the laver will not be dried completely; fourth, the mechanized vegetable picking cannot be carried out, and the efficiency is low.

The above-mentioned manual operation is to dry out the full-floating laver cultivation method. The vegetable picking boat cannot enter under the net curtain to harvest laver, and it is blocked by the raft frame. Manual picking is required, which consumes a lot of labor and has low efficiency.

At the same time, it is difficult to control the length of laver on the net curtain after harvesting

When the vegetables are picked next time, they will be old and tender, which will affect the quality of laver; fifth, the manual operation of drying out the net curtain is one-time out of the water, and the load is heavy. High farming cost and low yield

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