| 摘要 |
PROBLEM TO BE SOLVED: To provide a grain drying device capable of preventing grain from unevenly dried because of unevenness in volume and temperature of drying air circulated in a drying passage of a forced-air drying portion. SOLUTION: A grain storing tank, the forced-air drying portion 3 and a grain taking-out tank 4 are respectively mounted at upper, intermediate and lower stages of a drying machine main body 1. A far infrared ray radiator 16 radiating far infrared ray to the grain flowing down from the forced-air drying portion 3 is disposed in the grain taking-out tank 4. The forced-air drying portion 3 defines the drying passage 10 by alternately disposing a plurality of hot air supply barrels 8 formed by a porous ventilation wall and a plurality of air discharge barrels 9 formed by a porous ventilation wall in opposition to each other. The hot air supply barrels 8 constituting the drying passage 10 are communicated to a hot air supply chamber 11, and the air discharge barrels 9 are communicated to an air discharge chamber 12, and one end side of the air discharge chamber 12 is provided with a suction air blower 13. The air discharge chamber 12 defines a throttle wind tunnel of which the sectional area is gradually reduced from one end side provided with the suction air blower 13 toward a front side. COPYRIGHT: (C)2008,JPO&INPIT
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