FOOD FREEZING TUNNELS

A freezer for individually quick freezing foodstuffs such as shrimps, diced chicken and peas, comprises a cooling tunnel (2) for precooling the foodstuff, and a freezing tunnel (3) for freezing the precooled foodstuff. The precooled foodstuff enters the freezing tunnel (3) through a hopper (12) and...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	LEIGH ST JOHN WEBB, GEOFFREY IAN OLDER
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COLD ROOMS COMBINED HEATING AND REFRIGERATION SYSTEMS CONVEYING COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHERSUBCLASS FOODS OR FOODSTUFFS FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J HANDLING THIN OR FILAMENTARY MATERIAL HEAT PUMP SYSTEMS HEATING HUMAN NECESSITIES ICE-BOXES LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES MANUFACTURE OR STORAGE OF ICE MECHANICAL ENGINEERING PACKING PERFORMING OPERATIONS PNEUMATIC TUBE CONVEYORS PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL REFRIGERATION OR COOLING REFRIGERATORS SHOP CONVEYOR SYSTEMS STORING THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT THEIR TREATMENT, NOT COVERED BY OTHER CLASSES TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING ORTIPPING TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	A freezer for individually quick freezing foodstuffs such as shrimps, diced chicken and peas, comprises a cooling tunnel (2) for precooling the foodstuff, and a freezing tunnel (3) for freezing the precooled foodstuff. The precooled foodstuff enters the freezing tunnel (3) through a hopper (12) and falls into a bath of liquid nitrogen. A rotating ribbon auguer (20) lifts the foodstuff out of the liquid nitrogen and carries it through an equalization section where it remains in contact with cold nitrogen vapour. The frozen foodstuff leaves the freezing tunnel (3) through outlet (14). The ribbon auger (20) is designed to remove the foodstuff rapidly out of the liquid nitrogen and carry it slowly through the remainder of the freezing tunnel (3) - the equalization section.