Beam trawl capable of achieving shrimp and spiral-shell separation

A technology of dividing nets and trusses, applied in the field of truss trawls, can solve the problems of secondary damage to shrimp bodies, easy injury of shrimps, and reduced value

Inactive Publication Date: 2017-05-10
DALIAN OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since shrimps and snails enter the same net bag, on the one hand, they will squeeze each other,...

Method used

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  • Beam trawl capable of achieving shrimp and spiral-shell separation
  • Beam trawl capable of achieving shrimp and spiral-shell separation

Examples

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Embodiment Construction

[0010] The specific implementation manner of the present invention will be described below with reference to the accompanying drawings. Such as figure 1 , figure 2 Shown: a girder trawling net capable of separating shrimp and snails, including a girder 1 and a net body 2 connected to the girder 1, a net cover 3 is provided at the opening of the net body 2, and a net cover 3 is connected at the end of the net body 2 There is a mesh bag, and the mesh bag here is divided into an upper mesh bag 4 and a lower mesh bag 5, and a fixed rope 6 is respectively arranged on both sides of the connection between the mesh bag and the mesh body 2, and the mesh back of the mesh body 2 A net back float rope 7 is also arranged at the place, and the two ends of this net back float rope 7 intersect with the above-mentioned two fixed ropes 6 at two points a and b respectively, and there are many points evenly distributed on the net back float rope 7. A net back float 8 is also provided with a se...

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PUM

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Abstract

The invention discloses a beam trawl capable of achieving shrimp and spiral-shell separation. The beam trawl comprises a beam and a trawl body connected with the beam, and a trawl cover is arranged at an opening of the trawl body. The beam trawl is characterized in that a trawl bag is connected to the tail end of the trawl body and divided into an upper trawl bag body and a lower trawl bag body, fixing ropes are arranged on the two sides of the portion where the trawl bag is connected with the trawl body respectively, a trawl back buoy rope with the two ends intersecting the two fixing ropes at a point a and a point b respectively is further arranged on the trawl body, and a plurality of trawl back buoys are evenly distributed on the trawl back buoy rope; a separation mesh is arranged at the portion where the upper trawl bag body is connected with the lower trawl bag body, a separation mesh rope is arranged at the front end of the separation mesh, the two ends of the separation mesh rope intersect the point a and the point b on the two fixing ropes respectively, and a plurality of separation mesh buoys are evenly distributed on the separation mesh rope; the total length between the beam and the tail end of the trawl bag is L, and the distance between the trawl back buoy rope and the beam and the distance between the separation mesh rope and the beam are 1/2L to 3/5L.

Description

technical field [0001] The invention relates to a net gear, in particular to a truss trawl net capable of separating shrimp and snails. Background technique [0002] Truss trawl belongs to bottom trawling fishing gear. Its fishing principle is to rely on a motorized fishing boat to tow the truss trawl. During the hauling process, various shrimps, fish, snails, cephalopods, etc. are driven into the net to achieve fishing. Purpose. Truss trawl is mainly composed of trusses, net cover, net body and mesh bag. A truss is installed on the front edge of the net cover at the front of the net port to keep the net port open horizontally. Chain, the equidistant distance between the front edge of the upper and lower net ports is connected with ropes to keep the shape of the net port. During operation, a pole protrudes from both sides of the hull, each dragging 1 to 2 nets, and 1 net at the stern, bringing a total of 3 to 5 fishing gears. The truss trawl in the Bohai area is mainly si...

Claims

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Application Information

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IPC IPC(8): A01K73/02A01K75/00
CPCA01K73/02A01K75/00
Inventor 邢彬彬庄鑫许传才刘景王羿宁王振宇徐铭王中秀黄帅
Owner DALIAN OCEAN UNIV
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