Method for manufacturing and suspending anti-polluting test hanging net of metal woven net for net box

Abstract

The invention discloses a method for manufacturing and suspending an anti-polluting test hanging net of a metal woven net for a net box. According to the method disclosed by the invention, a metal woven net and a high-intensity rope are adopted, the method is characterized in that the metal woven net for an anti-polluting test is made into a 0.50 m * 0.50 m square metal woven net, a steel rope ismounted at a place having 1 mesh distance from the upper side edge of a net sheet, the upper sides of the metal woven net are respectively bound to a net box floating pipe by both ends of a rope withthe diameter of 16mm, the linear distance between the two binding points is 0.5 m, and the length of the rope between the binding points of the net box floating pipe and the upper side edge of the metal woven net is 1.5 m; one end of a rope with the diameter of 16mm encircles the steel rope and the metal woven net for a circle at the central point of the upper side edge of the metal woven net, and the rope end is used as an eye splice, the other end of the rope is bound to the net box floating pipe, and the length of the rope between the binding points of the net box floating pipe and the upper side edge of the metal woven net is 1.5 m; and therefore, the hanging net for test is bound to the net box floating pipe by three ropes with the same length.

Description

technical field [0001] The invention relates to a metal braided netting antifouling test hanging net for net cages in the field of fishery engineering. Background technique [0002] Marine fouling organisms, also known as marine fouling organisms, are animals, plants and microorganisms that grow on the surface of marine facilities. In the cage culture sea area, the water flow is smooth and the bait is sufficient. The larvae and spores of fouling organisms float and swim to the cage facilities and then attach and settle down, resulting in a large number of marine fouling organisms attached to the synthetic fiber fishing nets used in the cages. For this reason, people use antifouling coatings for nets to carry out antifouling treatment on synthetic fiber fishing nets in cages. Through the antifouling agent that can be released in the antifouling coatings for nets, a protective layer is formed around the netting materials to prevent or reduce marine pollution. Fouling organism...

AI Technical Summary

Problems solved by technology

Mass production practice shows that (1) iron frames used as hanging nets will be severely corroded after being affected by comprehensive factors such as sea water, sunlight and high temperature; Severe corrosion will occur due to potential difference during the netting process, which will affect the antifouling effect evaluation of the metal braided netting; (2) A three-strand rope is tied to the cage frame at any height and spacing, even if the hanging net is located in the ocean. The different water layers with different biological distribution make the antifouling effect of hanging nets not comparable; the strength of a three-strand rope for hanging nets is small, and the rotatability in the ocean is large, and the distance between hanging nets is not suitable. It will cause the adjacent hanging nets to be entangled with each other, which not only affects the stability of the test hanging net, but also causes frequent loss of the anti-fouling test hanging net after the rope breaks, directly leading to test failure or delaying the best test time

The production of anti-fouling test hanging nets and the randomness of hanging affect the correct evaluation of the anti-fouling effect of metal braided nets, which has become an unsolvable technical problem for a long time

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