Cleaning The Central Channel After Drying A Partial Batch; Drying Of Different Grain Varieties; Aspects To Be Noted In Respect Of Hot Air Dryers - Mepu K-SERIES Operating Manual

6.4.11 Cleaning the central channel after drying a partial batch

When drying a partial batch, some grain may have ended up on the central hatch. Open the central
hatch so that the grain would trickle to the bottom of the central channel. Clean the central channel
and the base of the furnace; this will prevent the possibility of a fire in the dryer.

6.5 Drying of different grain varieties

Drying of turnip rape
Before starting to dry the turnip rape it is necessary to make the following four basic settings:
 Reduce the feed rate of the feeding apparatus.
 Reduce the main fan air flow rate by about one-half.
 Close the pre-cleaner air flap almost completely, i.e. select the smallest cleaning setting.
 Close the bottom aspirator air flap completely, i.e. select the minimum suction setting or
remove the plug.
If the dryer is equipped with a 2 stage burner, the second stage can be completely deactivated. Turn
the main burner switch into position 1, causing the temperature to drop. If, however, the burner
power is still too high, contact the installer of the burner and have the burner adjusted to a lower
efficiency rating by replacing the nozzle.
Drying of peas
The best way to dry peas is to mix it with oats at 50/50 ratio, and otherwise use normal grain drying
settings. It is also possible to dry only peas, but depending on the threshing status, it is best to let the
peas have 3 – 4 hours of drying heat with minimal rotation. Set the feeder speed to zero, so that the
rollers of the feeding apparatus will turn slowly. When the surface of the peas is dry, adjust the
feeding speed to normal drying speed.

6.6 Aspects to be noted in respect of hot air dryers


Removal of dust and debris from the grain during the drying process considerably improves
the drying efficiency (pre-cleaner adjustment),

Whenever possible carry out drying with full batches. This ensures the best energy
efficiency.

Fast feeding rate reduces the grain temperature, while slow feeding rate increases the grain
temperature.

The spreader disc in the grain bin serves to fill the silo evenly ensuring that the thickness of
the grain layer in the silo is uniform. This provides for even air circulation and a uniform
drying result.
32 D00125-2019_EN