Drying process and tower for products in grain form

Details Drying process and tower for products in grain form Drying process and tower for products in grain form

1990-07-05

1992-05-12

Bennet, Henry A.

Drying and gas or vapor contact with solids

Apparatus

With apparatus using centrifugal force

34169, 34174, 34 77, F26B 1700, F26B 1712

Patent

active

051115964

ABSTRACT:
The application describes a drying process and a fully electric drying device consuming from 80 to 140 KWH of electricity per ton of water evaporated. One and the same drying fluid (air, gas or steam) saturated with steam at a temperature of .THETA.0 rises, gradually becoming laden with steam, after each of the numerous fluidized drying stages for granulous products descending in the opposite direction. Between each drying stage, the drying fluid is superheated by crossed tubes (14) maintained at a temperature .THETA.2 approximately 20.degree. C. greater than .THETA.0 by condensation (at 28) of the same steam compressed from .THETA.0 to .THETA.2, or by the condensation of auxiliary steam evaporated at .THETA.0-5.degree. C. by condensation of the vapors formed by the drying process.

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patent: 4602438 (1986-07-01), Draper et al.
patent: 4619053 (1986-10-01), Schumacher

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