US Patent 11047623 Grain dryer and method for using the same

There is provided a grain dryer in which the whole of a dryer main body can be made effective use of whether the grain dryer is used in either a circulation drying mode or in a continuous flow drying mode, the grain dryer including a dryer main body into which grains are loaded, a hot air chamber provided at one side of the dryer main body to supply hot air into an interior of the dryer main body, and an exhaust air chamber provided at the other side of the dryer main body to discharge hot air from the interior of the dryer main body, wherein the hot air chamber and the exhaust air chamber each have a plurality of upper and lower independent spaces, the corresponding spaces of the hot air chamber and the exhaust air chamber being disposed to be positioned substantially at a same height, and wherein the individual spaces of the hot air chamber communicate with corresponding hot air generators to execute separate supplies of hot air generated by the hot air generators into the individual spaces, and a height range in the interior of the dryer main body into which hot air is supplied from the spaces of the hot air chamber is defined as a drying section to dry grains loaded into the interior of the dryer main body.