Apparatus for refrigerating materials

Details Apparatus for refrigerating materials Apparatus for refrigerating materials

1975-06-17

1977-07-05

Capossela, Ronald C.

Refrigeration

Article moving means

Rotary about fixed axis, e.g., rotary shelf or scraper

241 23, F25D 2502

Patent

active

040331423

ABSTRACT:
Material is fed into a revolving drum which has an interior configuration, preferably in the form of a helical blade, to convey the material at a controlled rate through the drum. A low temperature gas, such as nitrogen, is introduced into the drum downstream when viewed in the direction of travel of the material, in a liquid state at a controlled rate through a spray nozzle system, thereby continuously exposing the material to the cooling effect of the gas. A portion of the gas is recirculated from the upstream end to the downstream end of the drum. The material is pre-cooled in the upstream portion of the drum. After exiting from the drum, the material may be crushed or impacted and separated.

REFERENCES:
patent: 2879005 (1959-03-01), Jarvis
patent: 3015219 (1962-01-01), Veyrie
patent: 3213634 (1965-10-01), Granata
patent: 3395549 (1968-08-01), Grimes
patent: 3666185 (1972-05-01), Williams

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