Patents
An improved natural convection drier useful for processing agricultural products, which comprises an enclosed drying chamber (1) having a frontal door (9) and bottom (11) openings (6) characterized in that the said chamber being provided with conventional means for horizontal stacking of a plurality of removable perforated trays (4) for holding material (5) to be dried, the said chamber being also provided with centrally placed top and bottom (7) open longitudinal vertical duct (3), the said duct (3) being provided with heating means (8) such as herein described, at the said bottom (7) and resistance / mixing baffles at the top.