| 摘要 |
PROBLEM TO BE SOLVED: To provide a grain drying machine capable of efficiently drying grain in a short time while inhibiting the generation of damaged grain such as cracking by equalizing a temperature of drying hot air in a hot air chamber even when a hot air temperature is increased by increasing the combustion of a burner to increase drying efficiency, and further effectively utilizing far infrared ray radiation heat of a hot air barrel mounted in a grain collecting portion. SOLUTION: The wide hot air chamber is mounted at an approximate center in the horizontal direction, of a drying portion, a hot air mixing chamber long in the anteroposterior direction, is mounted inside of the hot air chamber, the outside air and the burner combustion air are introduced from a rear part of the hot air mixing chamber respectively from different routes, and sufficiently mixed inside to prepare the drying hot air, and the drying hot air is supplied into the hot air chamber from a front part of the hot air mixing chamber. A bottom portion of the hot air barrel and outer peripheral surfaces of both side portions are coated with far infrared ray radiation coating, flow-down guide plates are mounted respectively at lower portions of right and left rotary valves in a state of being inclined downward in the center, and the flow-down guide plates are close to an outer peripheral bottom portion of the hot air barrel, and extend to an upper portion of a lower transferring spiral device at their tip end portions. COPYRIGHT: (C)2006,JPO&NCIPI
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