By Jamer Ian A. MustaphaSCREW CONVEYOR DRYERAlso known as hollow
flight dryerCan be used by using single screw or two to four hollow
helical screws.Can handle solids that are too fine and too sticky
for rotary dryer. Screw Conveyor dryer
Screw Conveyor Dryer Screw Conveyor Indirectly transfers heat
from the heat transfer agents to the material by conduction.The
heat transfer areas are covered with the material being processed,
and therefore the thermal efficiency is the much higher than other
types of heat exchangers.The moving solid particles changes
location and have physical contact with the walls and
screw.PRINCIPLEOPERATION
Water Super heated steam Hot OilHot airFlue gas
HEAT TRANSFER AGENTLow Maintenance costSafe to useContinuous
production machine without human touchCan be used for mixing
ADVANTAGEUses a lot of Space
DISADVANTAGECoal IndustryTextile IndustryPharmaceutical
IndustryMining Industry
