L'air Liquide, Societe Anonyme a Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude

L'air Liquide, Soci&#xe9;t&#xe9; Anonyme Pour L'etude Et L'exploitation Des Proc&#xe9;d&#xe9;s Georges Claude

Air Liquide Deutschland Gmbh

Johannes Beuse

Gerhard Gross

Robert Ian Taylor

Thomas Kutz

Friedel Theissen

Kirsten Möller

Marc Sporing

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 (N) 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.

Method and device for cooling a mass of a substance

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Düsseldorf, Germany

Johannes Beuse