Method for automatically cleaning seawater fence breeding netting underwater

Abstract

The invention discloses a method for automatically cleaning a seawater fence breeding netting underwater. A set of device is additionally arranged on the outer side of a fence breeding netting; for the device, according to the difference of seawater depths in a breeding sea, two or more rows of strip floater net scrapers are vertically pulled to form a distance according to a tidal range and are mutually parallel; the strip floater net scrapers are sequentially and vertically connected through hanging ropes; and the lower part of each hanging rope is connected with a seabed sinker. The fence netting is segmented into a plurality of zones by transverse stay cords; and the vertical distance of each zone is equal to an average tidal range of a sea area where the netting is positioned, and steel reinforcing sinkers are assembled below two transverse stay cords at the lowest part of the netting. Round holes are formed in strip battens of the strip floater net scrapers; and guiding ropes are fixedly arranged at the upper end of the netting, penetrate through the round holes on the strip battens and are sequentially connected with the transverse stay cords on the netting. The device can realize automatic cleaning of the fence netting underwater, depending on the tiding and heaving of sea waves. The method disclosed by the invention has the beneficial effects that the cleaning cost of the seawater fence breeding netting is reduced, avoidance of labor force, energy consumption and pollution, and zero discharge.

Description

technical field [0001] The invention relates to a method for automatically cleaning net clothes under water for agricultural offshore fence culture. Background technique [0002] Sea pen culture nets are placed in seawater for a long time, and some marine organisms will attach to the nets, which increases the weight of the nets and affects the water exchange inside and outside the pens. The nets must be cleaned regularly. This work needs to be done every year. Perform 5-6 times. The method of removing attachment on the net clothing at present is mainly to manually replace the net clothing—the net clothing is dragged ashore with a ship to remove the attachment on the net clothing through sun exposure, wheel pressure, knocking, seaside cleaning. This method of artificially cleaning the nets on the shore will cause serious pollution to the coast, and ships will also consume diesel and emit carbon dioxide when hauling the nets ashore. In some areas, high-pressure water guns or...

AI Technical Summary

Problems solved by technology

[0003] The above-mentioned methods all have labor-intensive, energy-consuming and pollution problems

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