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 while preventing incomplete combustion of the burner, and realizing this drying with simple structure.
This grain far-infrared dryer is constituted to allow an exhaust port 80 of a far-infrared radiator 78 to independently communicate with a part directly behind a suction exhauster 70 through an exhaust air passage 82. In the grain far-infrared dryer, the far-infrared radiator 78 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, and combustion exhaust of the burner 66 is led to the exhaust air passage 82 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. Moreover, there is no change in the primary combustion air quantity of the burner 66, so that incomplete combustion can be prevented.
JINBO KAZUMI
Kato Kazunori
Katsuichi Nishimoto
Hiroshi Fukuda