| 摘要 |
PROBLEM TO BE SOLVED: To provide a circulation type grain dryer capable of efficiently using thermal energy of hot air generated in a burner. SOLUTION: The circulation type grain dryer comprises a grain storage tank 2 having a heating part for heating a grain, and a drying part 4 having a grain falling layer 15 and a hot air exhausting drum 16 on both sides with a hot air supplying air duct 13 between to send hot air to the grain in the grain falling layer 15. The drying part 4 includes a far infrared radiation tube 21 for radiating far infrared ray transversely provided within the hot air supplying air duct 13, a hot air generator 6 connected to the hot air supplying side of the far infrared radiation tube 21. The heating part 3 includes a plurality of heating tubes 10 and 11. Each of the heating tubes 10 and 11 is adapted so that its hot air supplying side communicates with the hot air discharging side of the far infrared radiation tube 21, and its hot air discharging side communicates with an exhaust fan 9. COPYRIGHT: (C)2005,JPO&NCIPI
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