METHOD FOR DRYING SEEDS AND GRAINS Russian patent published in 2020 - IPC F26B3/06 F26B15/04 

FIELD: drying.

SUBSTANCE: invention relates to methods for drying mainly high-moisture materials and can be used in agriculture, food industry, as well as in the field of fodder production in agriculture and bakery products. Method of drying seeds and grains in dense layer is carried out in revolving around vertical axis of carousel dryer. Novelty is that material after temporary storage and/or finish of harvesting season is first not drying, grains are stored in moisture content of 19–23 % for 2–3 hours, batch of material on dryer, but at the same time providing slow rotation of drying chamber due to replacement of a pair of rotating pulleys of different diameters. Dried batch of grain is again returned to the current and settled for 1–2 days. Third stage of additional drying of grain material is limited by its achievement of standard moisture content of 16–17 % for 1–1.5 hours, batch of material coming for drying after 1–2 days of laying for current, already with lower temperature of heat carrier, and height of both under-dried at first stage and dried at third stage of grain in drying chamber corresponds to pressure of heat carrier, controlled by jet-guiding system in form of horizontal louvers, installed after the fan, at which there is no grain particles ejection and its impact destruction. Grains are unloaded with relative humidity of 16–17 % and with standard moisture content of 13–14 % by means of an unloading screw first from the drying chamber through the tray, then with an inclined unloading conveyor made in the form of a closed pipeline consisting of separate sections of pipes connected by bolts to each other. Unloaded in band-type bucket elevators, then through a bunker into vehicles, delivered to ventilated warehouses and cooled with atmospheric air for long storage and sampling of grain, using, for example, sampler.

EFFECT: invention shall ensure reduction of energy intensity, increase efficiency and safety of drying of seeds and grains of high humidity at all stages of its drying, and also increase efficiency.

5 cl, 3 dwg