Freezing equipment applied to aquatic products

Abstract

The invention relates to the technical field of freezing equipment, in particular to refrigerating equipment applied to aquatic products. The freezing equipment comprises a freezing box, wherein a plurality of freezing devices are arranged on the inner wall of the freezing box, and are uniformly distributed on two sides of the freezing box; each freezing device comprises a roller; each roller is provided with a rotating shaft; an accommodating space is formed in each roller; a plurality of through holes are formed in the surface of each roller; a plurality of plug hole control devices which correspond to the positions of the through holes are arranged on each rotating shaft; a contact part is arranged at the tail end of each plug hole control device; the size of each of the contact parts is adapted to that of each of the through holes; each contact part is semi-sphere, and the spherical cap part faces the outer side of the roller; an opening is formed in one end of each rotating shaft;a hollow pipeline is arranged in each rotating shaft; a plurality of ventilation holes are formed in the surface of each rotating shaft; a ventilating pipe is hinged to each opening; a liquid nitrogen providing device is connected to the tail end of each ventilating pipe; and in the falling process, fish touches the contact parts on each roller, and liquid nitrogen is sprayed from the rollers ontwo sides for freezing the fish. The freezing equipment disclosed by the invention has the advantages that the fish can be frozen in a multi-aspect manner, and the freezing efficiency is high.

Description

technical field [0001] The invention relates to the technical field of freezing equipment, in particular to a freezing equipment applied to aquatic products. Background technique [0002] Aquatic product freezing refers to the use of low temperature conditions to inhibit the activity of autolyzed enzymes and the reproduction of attached microorganisms in aquatic products, and to slow down the chemical reactions such as lipid oxidation and non-enzymatic browning, so that they can maintain good quality during storage. Low temperature preservation method. The freezing of aquatic products generally includes two types of methods: refrigeration preservation and freezing preservation. Among them, the freezing preservation method mainly uses freezing equipment to quickly freeze fresh aquatic products. Liquid nitrogen freezing equipment has the characteristics of being able to quickly freeze products, pass through the ice crystal formation zone, prevent the formation of large ice cr...

AI Technical Summary

Problems solved by technology

[0004] The present invention intends to provide a kind of freezing equipment applied to aquatic products, so as to overcome the tunnel-type liquid nitrogen freezing equipment in the prior art. In the process of freezing fish products, a certain side of the fish product is always attached to the conveyor belt. As a result, it is difficult to maintain the original flavor and quality of this part of fish products, thereby reducing the freezing efficiency and overall freezing quality of fish products, and improving the overall freezing efficiency and freezing quality of fish products

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