| 摘要 |
PROBLEM TO BE SOLVED: To provide a grain dryer enabling a superior drying without any cracks to be carried out while mixed dust is effectively discharged and residual of dust is being restricted when buckwheat or the like are dried. ! SOLUTION: A grain dryer comprises a drying chamber (3) for hot air drying grain with hot air, a grain circulation device (5) for circulating the grain, a control device (S) for controlling the drying of grain up to a target moisture value, a discharging air returning mechanism (11) for returning discharged air generated by hot air drying back to the drying chamber (3), and has a hull drying mode for drying hull and a buckwheat drying mode. At the starting time of the discharged air returning operation by the discharging air returning mechanism (11) under the buckwheat drying mode, the moisture value of buckwheat is set to be equal to or less than a set moisture value, the moisture value of buckwheat at the starting time of the discharging air returning operation is set to be |
