Method and apparatus for surface freezing
AssigneeFrigoscandia Equipment AB
InventorsJonny Malmberg, Lennart Olsson
Life of this patent
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Abstract
A method and apparatus for freezing a surface layer of food product (6), placed on a non-foraminous conveyor belt (7) wherein cold air in the form of jets is blown towards the underside of the non-foraminous conveyor belt. The apparatus for carrying out the method comprises, in addition to the non-foraminous conveyor belt (7), a plurality of stationary nozzles (14) for producing jets towards the underside of the non-foraminous conveyor belt in an area which extends over the width of the non-foraminous conveyor belt.
Claims20
An apparatus for freezing a surface layer of a food product (6), comprising a first non-foraminous conveyor belt (7, 11), a plurality of stationary nozzles (14) and cooling means communicating with said stationary nozzles for producing cold air to be ejected through said stationary nozzles in jets directed towards an underside of the first non-foraminous conveyor belt over an area which extends a width of the first non-foraminous conveyor belt.
An apparatus located in a prefreezer (5) for freezing a surface layer of a food product (6) to be moved to a freezer (1), said apparatus comprising:
- a first non-foraminous conveyor belt (7, 11) rotatable in said prefreezer (5);
- a plurality of stationary nozzles (14) positioned below a top run of said first non-foraminous conveyor belt;
- and cooling means communicating with said plurality of nozzles for producing cold air to be ejected through said plurality of nozzles in jets, said jets directed towards an underside of the first non-foraminous conveyor belt over an area which extends a width of the non-foraminous conveyor belt.
Dependencies are inferred from the claim text.