F - Mech Eng,Light,Heat,Weapons – 26 – B
Patent
F - Mech Eng,Light,Heat,Weapons
26
B
34/35
F26B 17/12 (2006.01) A23B 9/08 (2006.01) F26B 17/14 (2006.01)
Patent
CA 1094313
Abstract of the Disclosure A concurrent-countercurrent flow type grain dryer is described having an improved wet grain-drying air contacting arrangement. The dryer is in the form of a tower, with the grain passing from top to bottom by gravity flow. The tower has a wet grain bin at the top with inter- mediate drying zones and metering grain outlets at the bottom for controlling the rate of movement of grain through the tower. The drying zone is divided into several sections including at least two concurrent flow hot air drying zones with a steeping zone between each pair of concurrent flow hot air drying zones, followed by a countercurrent flow cooling zone. The use of two or more concurrent flow drying zones with intermediate steeping zones have been found to remarkably improved both the rate of flow of grain through the dryer and the moisture removal efficiency. Still greater efficiencies have been achieved by recycling the outlet drying air from one drying zone to the inlet drying air of a subsequent drying zone.
303670
Kirby Eades Gale Baker
Westlake Agricultural Engineering Inc.
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