ANTTI Plug&Dry, Installation And Operating Instructions Manual

Page: 53 / 59

Antti-Teollisuus Oy 53 408116 03-2020
Drying temperature
The more uniform the drying temperature, the better the automation operates. If the drying air temperature, however,
drops, for example, by 5 °C, the cut-off temperature of the outlet air temperature must be decreased by 1.5–2 °C.
If this is not observed, the grain will become 1–2 % dryer.
MAINTENANCE AND OPERATING ADJUSTMENTS
From time to time, check that the scrapers keep the bucket belt pulleys clean. Also check the bucket belt for tight -
ness. As required, tighten the belt by shortening (see the instructions in the elevator manual).
Check that the pressure ends and the return ends are clean (through the doors).
Option: For drying partial batches, close the drying section shutter doors so that no harmful vacuum will be gener -
ated inside the top tank.
Note! If the air flow into the sections is restricted by means of shutter doors, the volume of air must also be reduced
so that the pressure inside the sections will not rise too high (the counter-pressure must be the same as during
conventional drying)(the counter-pressure must be the same as during conventional drying). The shutters of the air
channels must be provided with open-closed stickers as a reminder of their operating positions at later times of use.
Keep an eye on possible over flight of the grains and the drying temperature. When drying partial batches, the
drying automation is less accurate.
In connection with change of variety to be dried, the elevator boot, the bottom suction fan and the feeder shall be
cleaned, and for some time air blown into the empty dryer by means of the dryer heater.