9. Potential applications
As Heat Exchanger
Since the screw or helical auger is stationary and its shaft can be hollow, it can be plumbed to circulate heating or cooling fluids through its centre shaft. For larger elevators (228 mm/9inch diameter and larger), hollow flights may be constructed to utilize the full working surface of for heat transfer. The pitch of the screw may be optimized to ensure maximum residence time. This creates the prospect of a single piece of equipment serving as an Elevator, Volumetric Feeder and Heat Exchanger within a small footprint of plant space.