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Fish sorting device for fish lift

The technology of a sorting device and a fish lifter can be used in applications, fish farming, water conservancy projects, etc., and can solve problems such as adverse effects on the natural environment, maintain genetic and biological diversity, increase fish yield, and maintain connectivity. sexual effect

Pending Publication Date: 2018-06-15
GUIZHOU SURVEY & DESIGN RES INST FOR WATER RESOURCES & HYDROPOWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of my country's water conservancy undertakings, large and super-large water conservancy projects have emerged one after another and have a certain number and scale. However, while solving the huge needs of people's livelihood and bringing huge economic benefits, they also have certain adverse effects on the natural environment. influences

Method used

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  • Fish sorting device for fish lift
  • Fish sorting device for fish lift
  • Fish sorting device for fish lift

Examples

Experimental program
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Effect test

Embodiment

[0025] The fish sorting device used for the fish lifter of this example includes a sorting tank 10; the bottom of the sorting tank 10 is provided with a lower pipe 14, and the inlet of the lower pipe 14 is provided with a gate valve 15; the sorting tank 10 is provided with a lifting and sorting mechanism . The lifting and sorting mechanism includes a screen assembly 20 , a lifting assembly 30 and a hydraulic assembly 40 . Four bottom guide rails 13 are laid on the bottom of the sorting tank 10, and four bottom guide rails 23 are laid on the bottom of the screen assembly 20. A lifting assembly 30 is provided between the pool bottom guide rail 13 and the frame bottom guide rail 23. The lifting assembly 30 includes a support arm 33 of a scissors and fork structure; 35 hinged. In this example, the lifting arm 33 of the scissors and fork structure is reliable in lifting operation, and the sorting pool 10 utilizes the mesh screen assembly 20 of a right angle triangle to select the...

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Abstract

The invention discloses a fish sorting device for fish lift, including the separation tank (10); there is a screen assembly (20) in the separation tank (10) and the bottom of the screen assembly (20)has a lifting assembly (30), lifting assembly (30) is connected with hydraulic assembly (40) connection. The structure of the present invention is simple, the operation of lifting components is reliable, and the separation tank adopts a right-angled triangle bracket and screen-screen grid structure to filter adult fish seedlings in a mild manner, with less harm to the fish fry, and the mesh screenhas a certain degree of inclination. It is possible to ensure that adult fish seedlings are screened from the fish track and that the fry of fish fry are in water, and the whole fish sorting tank isvery effective for the screening of fish fry. The device of the present invention maintains vital significance in maintaining the connectivity of the river ecosystem, protecting the rare fish, increasing the yield of the river and maintaining the genetic and biodiversity of the river.

Description

technical field [0001] The invention relates to a fish sorting device for a fish lifting machine, which belongs to the technical field of ecological protection facilities in water conservancy projects. Background technique [0002] With the rapid development of my country's water conservancy undertakings, large and super-large water conservancy projects have emerged one after another and have a certain number and scale. However, while solving the huge needs of people's livelihood and bringing huge economic benefits, they also have certain adverse effects on the natural environment. influences. As far as the aquatic ecosystem is concerned, the construction of dams blocks the connection between the upstream and downstream of the river, breaks up the living environment of fish, and limits the gene exchange between populations, which in turn leads to a decrease in the genetic diversity of rare and unique fish, especially For migratory fish, the dam blocks the migration channel, ...

Claims

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Application Information

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IPC IPC(8): A01K61/95E02B8/08
CPCA01K61/95E02B8/085Y02A40/60
Inventor 杨松李云峰何伟覃志强陶光慧黄臣勇徐国杨杨薇王德丽
Owner GUIZHOU SURVEY & DESIGN RES INST FOR WATER RESOURCES & HYDROPOWER
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