To provide a grain far-infrared dryer capable of suitably drying grain to be dried with clean dry air containing no combustion exhaust of a burner, without sticking offensive odor or combustion soot to the grain, and realizing this drying with simple structure.
This grain far-infrared dryer is constituted to arrange an exhaust port 80 of a heat radiating part 78B of a far-infrared radiator 78 to communicate with an exhaust air communicating passage 68 and to face directly in front of a suction exhauster 70. In the grain far-infrared dryer, the far-infrared radiator 78 (a radiator body part 78A and the heat radiating part 78B) is heated by the burner 66 to radiate far-infrared rays, and outside air led into an air guide passage 38 is heated to become dry air. Moreover, the combustion exhaust of the burner 66 is not fed to a grain flow-down passage 46 from the air guide passage 38 but led to an exhaust air communicating passage 68 from the exhaust port 80 and entirely exhausted as it is to the outside of the dryer by the suction exhauster 70. There is therefore no possibility of sticking fuel odor or combustion soot to the grain flowing down the grain flow-down passage 46.
JINBO KAZUMI
Kato Kazunori
Katsuichi Nishimoto
Hiroshi Fukuda