A loop hatching tank capable of automatically cleaning the water filter screen cover

Abstract

The invention relates to an annular passage hatching pool, and belongs to the field of aquaculture. An annular passage hatching pool with an automatic water filter net cover cleaning function is characterized by comprising an annular passage hatching pool, wherein the middle of the bottom of the annular passage hatching pool is provided with a water outlet, a water discharge pipe is arranged on the water outlet, the height of the water discharge pipe is set according to the height requirement of the annular passage hatching pool, an outer ring of the water discharge pipe is provided with a filter net framework , a filter net is arranged on the filter net framework, a back flushing component is arranged between the filter net framework and the water discharge pipe, and comprises a back flushing pipe arranged in a way of pasting the filter net, one side, corresponding to the filter net, on the back flushing pipe wall is provided with a plurality of small water outlet holes used as back flushing water outlets, a water inlet of the back flushing pipe is formed above the filter net framework, and the bottom of the annular passage hatching pool is also provided with a hatching pool water inlet and a pollution discharge opening. The annular passage hatching pool has the advantages that the installation of the filter net is convenient, in addition, the filter net can be automatically cleaned, and the hatching rate and the survival rate of fries are improved.

Description

technical field [0001] The invention relates to aquaculture equipment, in particular to a loop hatching tank of an aquaculture facility. Background technique [0002] my country is a big aquaculture country, and the aquaculture output of aquatic products accounts for more than 70% of the total amount of aquatic products in my country, mainly farmed fish. The artificial breeding of fish fry is an important basis for supporting the aquaculture industry. In 2011, the output of freshwater fish fry in my country was 1.1197 billion, the output of seawater fish fry was 4.5384 billion, and the amount of shrimp breeding was 565 billion. The total output value of aquatic fry reached 42.544 billion billion. [0003] my country's aquatic breeding facilities are formed and gradually developed along with the large-scale development of cultured species. The overall industrial level is in the initial stage of facility-based production. Most of the existing hatcheries are flow-water cement p...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a ring hatch hatch that can automatically clean the water filter net cover, so as to solve the problem that the area of ​​the filter water net in the ring hatch hatch is too small, which affects the water exchange volume and restricts the number of fertilized eggs per unit water body. The amount of hatching, and when the fry are shelled, due to the interception by the water filter net, the water exchange volume of the loop pool is reduced and the water quality is likely to deteriorate, thereby reducing the hatching rate of fertilized eggs and the survival rate of fry.

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