Method and apparatus for producing microfine frozen particles

Details Method and apparatus for producing microfine frozen particles Method and apparatus for producing microfine frozen particles

1986-11-05

1987-11-10

Capossela, Ronald C.

Refrigeration

Processes

Treating an article

62 68, 62 78, 62538, F25D 1702

Patent

active

047048735

ABSTRACT:
A method of producing microfine frozen particles from water, liquid drugs, juices, etc. comprises the steps of atomizing a mixture of a liquid with a gas and directing the mixture toward a body of a refrigerant liquid whose surface is stirred by application of kinetic energy to form ripples. The refrigerant liquid being liquid nitrogen, liquid air, a cooled organic solvent or the like, so that the atomized liquid undergoes heat exchange with the refrigerant liquid to form fine frozen particles. An apparatus for practicing the method, comprises a vessel for containing the refrigerant liquid, apparatus for forming ripples at the surface of the refrigerant liquid by injecting a gas, or by applying vibrations to the vessel or the refrigerant liquid, an atomizer functioning as a mixer and atomizer for a liquid and a gas, and an apparatus for collecting the microfine frozen particles from the refrigerant liquid.

REFERENCES:
patent: 2875588 (1959-03-01), Berger
patent: 3228838 (1966-01-01), Rinfret et al.
patent: 3411309 (1968-11-01), Skrebowski et al.
patent: 3513212 (1970-05-01), Skrebowski et al.
patent: 4178776 (1979-12-01), Baldus et al.

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