SYSTEM AND METHOD FOR PRODUCING BLOCK ICE TREATED WITH NITROGEN SUBSTITUTION
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United States of America Patent
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Issued Date -
Nov 17, 2016
app pub date -
Jan 18, 2016
filing date -
May 14, 2015
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Abstract
A system for producing block ice may include a nitrogen gas supplying unit for supplying nitrogen gas under 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.
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