Quick freezing equipment for fish product

Abstract

The invention discloses quick freezing equipment for fish products, and aims to provide quick freezing equipment capable of effectively improving the whole freezing efficiency and quality of fish products and maintaining original flavor and quality of fish products. The equipment comprises a refrigerating chamber, an upper conveyer belt arranged in the refrigerating chamber, a lower conveyer belt arranged in the refrigerating chamber and below the upper conveyor belt, a turning device arranged in the refrigerating chamber, and a feeding bucket arranged in the refrigerating chamber and right above the upper conveyer belt. A flexible shifting device and an upper liquid nitrogen injection nozzle are arranged in the refrigerating chamber and right above the upper conveyor belt, and the feeding hopper, the flexible shifting device and the upper liquid nitrogen injection nozzle are arranged in order along the conveying direction of the conveyor belt. The turning device comprises a turnover mechanism, an anti-clogging adjusting device and a transition guide transfer mechanism; the turnover mechanism comprises a guide arc plate and a turnover arc plate; and the transition guide transfer mechanism comprises an inclined transfer track extending downwards along the transfer direction of the lower transfer conveyor belt.

Description

technical field [0001] The invention relates to a liquid nitrogen freezing device, in particular to a quick freezing device for fish products that uses liquid nitrogen to freeze fish products. Background technique [0002] Freezing of fish products refers to the use of low temperature conditions to inhibit the activity of autolytic enzymes and the reproduction of attached microorganisms in fish 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. High-quality low-temperature preservation method. The freezing of fish 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 fish products. Liquid nitrogen freezing equipment has the characteristics of being able to quickly freeze products, pass through the ice crystal formation zon...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is 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, which makes it difficult to maintain the original position of the fish product. It has certain flavor and quality, thereby reducing the freezing efficiency of fish products and the problems of overall freezing quality, providing a method that can effectively solve the above-mentioned deficiencies in the tunnel-type liquid nitrogen freezing equipment in th

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