Cryogenic processor for liquid feed preparation of a...

F - Mech Eng,Light,Heat,Weapons – 25 – C

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F25C 1/00 (2006.01) A23C 3/04 (2006.01) A23G 9/04 (2006.01) A23G 9/06 (2006.01) A23G 9/16 (2006.01) A23L 3/36 (2006.01) A23L 3/375 (2006.01) F25D 17/02 (2006.01)

Patent

CA 2415567

The cryogenic processor comprises a tray or multiple trays that receives liquid feed composition from a delivery source. A plurality of orifices or combination of orifices and feed droppers, hereinafter feed assembly, associated with the tray are specifically arranged and adapted for discharging uniformly sized droplets of the liquid composition from the tray. In a key aspect of the improvement, a regulated flow of ambient air is provided to the feed assembly by a venturi assembly or other source of partial vacuum. The vacuum assembly allows ambient air, possibly filtered, to be pulled into the cryogenic processor and across the feed assembly which prevents liquid composition from freezing and accumulating in the flow channels of the feed assembly, thus allowing continuous formation of uniformly sized beads. Adjustable door inlets are adapted and arranged as a means to control the flow of incoming ambient air as well as the flow of outgoing gaseous refrigerant.

Processeur cryogénique qui comporte un ou plusieurs plateaux destinés à recevoir une composition liquide d'alimentation provenant d'une source d'alimentation. Une pluralité d'orifices ou une combinaison d'orifices et d'embouts à débit contrôlé, ci-après appelée ensemble d'alimentation, associée au plateau, est spécifiquement conçue et adaptée pour laisser tomber du plateau des gouttelettes de taille uniforme de la composition liquide. Dans un aspect clé, l'amélioration appportée à la présente invention concerne un flux régulé d'air ambiant qui est introduit dans l'ensemble d'alimentation par un ensemble venturi ou toute autre source de vide partiel. L'ensemble à vide permet l'introduction d'air ambiant, éventuellement filtré, dans le processeur cryogénique et à travers l'ensemble d'alimentation, ce qui empêche la composition liquide de geler et de s'accumuler dans l'ensemble d'alimentation et permet ainsi la formation continue de perles de taille uniforme. Des orifices d'entrée à portes réglables sont adaptés et conçus en tant que moyens pour réguler le flux d'air ambiant entrant, ainsi que le flux de réfrigérant gazeux sortant.

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