drying principle

Your mobile circulating batch drier MUF is filled via the big feeding hopper and the elevator. The air heated up in the air heater is pressed into the inner hot air duct by means of the radial fan and then flows through the drying container filled with the product. The air absorbs moisture. The product is collected in intervals by the discharge mechanism and conveyed into the upper part of the drying container by the elevator. This upper, unventilated area serves as resting and temper zone. Here the moisture of the grain inside conforms to the moisture of the grain surface, before the grain gets again into the active drying zone. From size 110, an additional unventilated resting zone is included in the plant, making further termpering and thus energy saving possible ("dryeration").

The multi-term automatic system operates with a high hot air temperature at the beginning of drying and then switches gradually to a lower temperature level for final drying. This procedure brings about a high energy efficiency and, at the same time, treats your product carefully. 
Having reached the requested final moisture (easy sampling and monitoring of the grain temperature), the drier automatically switches to cooling. The product cools down to storage temperature and is discharged via the circular elevator. The following diagram shows an example of the multi-therm temperature cycle for maize drying from 35 % to 14 % moisture content.