Seed drying process and apparatus

Details Seed drying process and apparatus Seed drying process and apparatus

1975-12-22

1977-04-05

Camby, John J.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

34 15, 34 92, F26B 328, F26B 504

Patent

active

040153410

ABSTRACT:
Seed is dried with no impairment of its germinating capabilities by subjecting the seed to microwave energy in an atmosphere of reduced pressure. The microwave energy elevates the temperature of the water within the seed to its boiling point, which is quite low because of the reduced pressure, and the water vapor which is released is condensed within the atmosphere of reduced pressure. An apparatus for practicing the process includes an upright pressure vessel, hoppers at each end of the pressure vessel, a perforated processing chute connecting the hoppers, and a control wheel at the lower end of the chute for controlling the speed at which the seed moves through the chute. It also includes a vertical wave guide surrounding the chute and external microwave power units which direct microwave energy into the wave guide and the chute within it. A condenser surrounds the wave guide within the pressure vessel.

REFERENCES:
patent: 1920107 (1933-07-01), Richardson
patent: 2799947 (1957-07-01), Elwess
patent: 3409447 (1968-11-01), Jeppson
patent: 3528179 (1970-09-01), Smith

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