| 摘要 |
<p>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 DEG 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 DEG C. by condensation of the vapors formed by the drying process.</p> |
