| 摘要 |
PROBLEM TO BE SOLVED: To judge a jam of grain fed to a grain collection chamber having a far infrared radiation body by temperature control around a grain guide plate and to stop the temperature control during the time when burner combustion is unstable time in one end of the far infrared radiation body. SOLUTION: In this grain dryer, radiated heat, which is radiated by the far infrared radiation body 6 arranged in the grain collection chamber 4 part and works on the grain fed onto a chute 8 in the grain collection chamber 4, and exhaust hot wind from the far infrared radiation body 6 are introduced into a drying room 3 for drying the grain. A temperature detector is arranged on the grain chute 8 in the grain collection chamber 4, and a jam of grain from the drying room 3 to the collection room 4 is determined when a high temperature above a predetermined temperature is detected by the temperature detector. It is judged whether fluctuation of a combustion quantity of a burner after start of drying reaches a predetermined range or not, and when it reaches the predetermined range or below, an abnormal condition, that is a jam of grain, is judged with the temperature detector. COPYRIGHT: (C)2004,JPO
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