TOWER CIRCULATING FAR-INFRARED GRAIN DRYER AND METHOD OF GRAIN DRYING FOR INDUCTION OF GRAIN MOISTURE CONTENT DECLINATION

摘要

PPROBLEM TO BE SOLVED: To attain improvement such as reduction of water content deviation between upper and lower layers of grains circulated in a dryer, as to an ultralarge-scaled circulation type grain dryer of 20 ton or more of scale using a far-infrared radiation. PSOLUTION: This supersized circulation type grain dryer is provided with at least four central air blowing chambers in a drying chamber, and is built in with a far-infrared radiation body for discharging hot air while emitting the far-infrared radiation. The hot air is distributed uniformly by a heat exchanger provided outside the drying chambers, to be supplied in the far-infrared radiation body. The far-infrared radiation body is formed into a vertically long diamond (substantially lozenge) shape to emit the far-infrared radiation more in a side face direction than in a vertical part side. Shutter drums are made to be individually driven, and the each shutter is driven according to a pattern of a processor. PCOPYRIGHT: (C)2008,JPO&INPIT