Process for cooling hygroscopic powder

Details Process for cooling hygroscopic powder Process for cooling hygroscopic powder

1990-01-12

1990-12-25

Bennet, Henry A.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

34 13, 34 57A, 34 85, 34 20, F26B 308

Patent

active

049793136

ABSTRACT:
Hygroscopic powders, especially fat-containing milk products, are cooled by being fludized in cooling air. Dehumidification of the drying air is omitted and overdrying prior to cooling to compensate powder rehumidification during cooling is avoided by using a closed cycle cooling in which the spent cooling air after efficient dust removal and re-cooling is used as cooling and fluidizing air. Substantial energy savings are achieved while product quality is maintained or improved.

REFERENCES:
patent: 3667133 (1972-06-01), Lincoln
patent: 4190963 (1980-03-01), Christensen et al.
patent: 4457081 (1984-07-01), Von Wedel

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