Farmers Review Africa Sept/Oct 2018 FRA - September - October 2018 digital 5 | Page 34

FEATURE
process is monitored by temperature
measurement with several sensors
above and below the material in the
drying chambers. The sensors are
connected to the plant control system. EH&S criteria as cob filling hatches are
separated from air outlet hatches and
therefore, the operating personnel on
the dryer house filling level is not at all
exposed to contaminated air.
After the drying process has been
completed, the material falls through
the discharge flap onto the emptying
conveyor and is transported away for
further processing. Access and costs of fuel for the burner
can be crucial for some areas. Hence,
PETKUS Corn Cob Dryer Houses can
be operated with gas, oil, diesel, petrol,
LPG or bio fuels, e.g. from wood chips,
rice or maize straw and husks, corn
cobs or palm husks. PETKUS installed
in Asia dryer houses with corn cob
burner with hot water heat exchanger
as well as air heat pumps with
dehumidifier pumps. Latter showed
considerably reduced drying costs of
app. 3 cent per kilogram.
PETKUS offers a wide range of dryer
house capacities for both systems,
the single as well as the double-pass
reverse. Due to its special design, the
PETKUS dryer houses are lightweight
and easier/faster to build and install on
site. In addition, they fulfil very high
32 |September - October 2018