System And Method For Producing Block Ice Treated With Nitrogen Substitution

Abstract

The present invention provides a block ice for restraining the oxidation degradation of the fresh foods to restrain the bacterial reproduction, a manufacturing system of the block ice and a manufacturing method of the block ice. A system for producing block ice may include a nitrogen gas supplying unit for supplying nitrogen gas under specified pressure; a cooled nitrogen-dissolved water producing unit for producing nitrogen-dissolved water, which is provided with a water receiving tank for storing material water, a cooler for cooling the water stored in the water receiving tank, and a nitrogen gas injector for injecting nitrogen gas supplied from the nitrogen gas supplying unit into the water stored in the water receiving tank; and a nitrogen-substitution block ice producing unit, which is provided with a plurality of ice cans immersed in a brine tank kept at a freezable temperature for water, a filling device for filling each of the ice cans with the nitrogen-dissolved water supplied from the nitrogen-dissolved water producing unit, and a gas injector for injecting nitrogen gas supplied from the nitrogen gas supplying unit into an unfrozen portion of the nitrogen-dissolved water.

Description

technical field [0001] The present invention relates to a production system and a production method of ice cubes which are columnar ice obtained by freezing water in which dissolved oxygen has been substituted with nitrogen. Background technique [0002] Patent Document 1 discloses the following technology: use nitrogen-enclosed ice formed by freezing water containing nitrogen to cover the water surface of the fish tank, and reduce the amount of dissolved oxygen in the water in the fish tank by melting the nitrogen-enclosed ice to maintain the freshness of fish. [0003] Patent Document 2 discloses the following technology: dissolving nitrogen gas in the processed pickle of fresh food, freezing it with an ice maker, putting the ice into a pickle tank to cover the water surface, and melting the ice to make The amount of dissolved oxygen in the water in the pickle tank is reduced, thereby improving the effect of preventing oxidation and spoilage of fresh food. [0004] On the...

AI Technical Summary

Problems solved by technology

[0015] For the aeration in the existing ice cube making, although there is a process of discharging the air bubbles in the water through stirring and air upflow, only by simply replacing the aeration in the existing ice cube making with nitrogen injection Ice cubes in a sufficient nitrogen replacement state (a state in which nitrogen is dissolved in place of oxygen) cannot be obtained.

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