Unsticking and cleaning device for fish fertilized eggs

Abstract

The invention relates to an unsticking and cleaning device for fish fertilized eggs, which is characterized by comprising an unsticking and cleaning barrel, wherein the lower part of the unsticking and cleaning barrel is cone-shaped, a rotary stirring device is arranged in the center and driven by a motor fixedly arranged above the rotary stirring device, the lower end of the unsticking and cleaning barrel is opened and respectively communicated with a discharge tube, a clean water inlet tube, and an unsticking liquid inlet tube through a four-way connecting tube; the device further comprises an overflow circular groove which is fixed at the upper part of the outer side wall of the unsticking and cleaning barrel; an unsticking wastewater outlet is arranged at the lower part of the overflow circular groove, and unsticking wastewater overflows from the unsticking and cleaning barrel and enters into the overflow circular groove and can be discharged from the unsticking wastewater outlet; and the device further comprises a spray circular tube communicated with a clean water source, wherein the spray circular tube is arranged above the unsticking and cleaning barrel and provided with a spray hole which is aligned with an upper port of the unsticking and cleaning barrel; and a screening ring is further arranged above the unsticking and cleaning barrel and separates the upper end of the unsticking and cleaning barrel from the overflow circular groove.

Description

technical field [0001] The invention relates to a device for debonding and cleaning fish fertilized eggs, belonging to the technical field of aquaculture. Background technique [0002] Among the important traditional cultured fishes in China, most of them produce sticky eggs. Before artificial hatching, it is necessary to debond and wash the fertilized eggs to improve the hatching rate. [0003] At present, the debonding and cleaning of viscous zygotes mostly rely on manual operations. The main problems are: ①uneven and incomplete debonding; ②high damage rate of fish eggs; ③fertilized eggs are susceptible to artificial infection and pollution; ④manual operation is labor-intensive, with low output and efficiency; ⑤high requirements for operators , it is difficult to achieve standardized standard operation. [0004] And the recently appeared method of applying the principle of aeration to carry out debonding of fertilized eggs, this method is to pass high-pressure gas in th...

AI Technical Summary

Problems solved by technology

The main problems are: ①uneven and incomplete debonding; ②high damage rate of fish eggs; ③fertilized eggs are susceptible to artificial infection and pollution; ④manual operation is labor-intensive, with low output and efficiency; ⑤high requirements for operators , it is difficult to achieve standardized standard operation

[0004] And the recently appeared method of applying the principle of aeration to carry out debonding of fertilized eggs, this method is to pass high-pressure gas in the container containing clear water and fertilized eggs, so that the fertilized eggs adhered together will be crushed under the impact of air flow and water flow. This method has the following problems: the fish eggs are not evenly turned and there are dead angles; after long-term use, the aeration holes are easy to block, which affects its use effect; high-pressure gas is easy to damage the fish eggs, causing unnecessary losses

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