Орлов Андрей Дмитриевич

Ответ на «определить форму и залог у глаголов»

The combine harvester delivers grain in too damp a condition for prolonged storage. Various methods of drying have been introduced.
A method of drying has been developed which uses storage bins with porous floor through which the drying air is forced. The air is warmed by means of an electric heater. The process of drying the grain is extended over days instead of hours by this method; the size and cost of the drying plant is correspondingly reduced.

natural drying capacity of the air is used and the efficiency is thereby increased. A recent development has been made to use cylindrical bins of perforated metal to introduce the air via a perforated duct running down the axis of the cylinder. The power requirement for the fan is thereby reduced to less than half that necessary for floor ventilated bins.

Electric motors and heaters are ideal for use with ventilated bins because they can run for days without attention and there is no risk of fire or grain contamination. Control of the heat can be performed by hand, by time switch or by humidity sensitive switch.