Method and device for cooling a mass of a substance

A method and a device for cooling a mass of meat-, tissue-, vegetable- and/or fruit-containing substance in a container, in particular a mixer, blender or mill, using liquefied nitrogen (N2) which is supplied in the lower region of the container at a constant working pressure via at least one nozzle...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KIRSTEN MOLLER, JOHANNES BEUSE, ROBERT TAYLOR
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COLD ROOMS COMBINED HEATING AND REFRIGERATION SYSTEMS COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHERSUBCLASS FOODS OR FOODSTUFFS FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J HEAT PUMP SYSTEMS HEATING HUMAN NECESSITIES ICE-BOXES LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES MANUFACTURE OR STORAGE OF ICE MECHANICAL ENGINEERING PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL REFRIGERATION OR COOLING REFRIGERATORS THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT THEIR TREATMENT, NOT COVERED BY OTHER CLASSES WEAPONS
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Beschreibung
Zusammenfassung:	A method and a device for cooling a mass of meat-, tissue-, vegetable- and/or fruit-containing substance in a container, in particular a mixer, blender or mill, using liquefied nitrogen (N2) which is supplied in the lower region of the container at a constant working pressure via at least one nozzle. During the cooling process and/or in stoppage times, the nitrogen is briefly supplied to the nozzle or, via the latter, into the container by means of at least one pressure pulse that is increased in relation to the working pressure. The pulsed supply of pressurized nitrogen blows blocked and/or iced-up nozzles free again and thus ensures a more reliable operation of cooling a mass of a substance. This method and device are suitable, in particular, for use in foodstuff technology.