| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a dehumidifying drying method and its system for a granular powder capable of saving energy with a simple method. <P>SOLUTION: In this dehumidifying drying system for the granular powder in which a dehumidifying unit provided with an adsorbent is disposed in a circulation passage of a processing gas supplied to a drying hopper storing the granular powder, and the processing gas discharged from the drying hopper is allowed to pass through the adsorbent of the dehumidifying unit, and then circulated and supplied in the drying hopper in the circulation passage, the dehumidifying unit comprises a dehumidification processing zone for adsorption dehumidification processing, a heating regeneration zone for heating regeneration, and a cooling regeneration zone for cooling and regenerating the adsorbent by allowing a cooling gas for regeneration to pass through the adsorbent after heated and regenerated, and inlets and outlets for allowing the processing gas, the heating gas for regeneration and the cooling gas for regeneration to be introduced and passed through the adsorbents respectively disposed on the corresponding zones. The cooling gas for regeneration after passing through the cooling regeneration zone is discharged from a discharge port formed on an upper part of the hopper. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
