AIR TRUNK STRUCTURE OF GRAIN DRIER

PROBLEM TO BE SOLVED: To prevent accumulation of dust and dew condensation in an exhaust air trunk of a grain drier. SOLUTION: In this air trunk structure of the grain drier wherein a storing portion, a drying portion and a grain collecting portion are successively mounted from an upper portion in a drier main body, a grain flow passage for communicating the storing portion and the grain collecting portion is formed in the drying portion in a state of being partitioned by a ventilation member, and a heat air trunk and an exhaust air trunk are respectively formed at each side of the grain flow passage to dry the grain by hot air in the grain flow passage of the drying portion in a state of circulating the grain, a lower end of the exhaust air trunk is opened to an exhaust chamber in the grain collecting portion, an outside air trunk is independently formed at a side face closure plate side of the drier main body in the exhaust air trunk, and the outside air trunk has an outside air suction opening opened to the external at its one end side and an outside air releasing opening opened to the exhaust air chamber at the other end side. COPYRIGHT: (C)2006,JPO&NCIPI