Dupps Airless Dryer
The innovative Dupps Airless Dryer is a rotary drum dryer that features superheated water vapor at atmospheric pressure as the drying medium. It’s also an indirect heated dryer—the products of combustion are isolated from the process loop of the dryer by a heat exchanger.
The Airless Dryer offers a number of important operational benefits over conventional hot air dryers:
• There is minimal risk of in-drum fires because of the oxygen-
starved environment.
• Minimal odor control equipment is needed.
• There is no visible plume of dryer exhaust.
• The dryer’s exhaust is essentially water vapor, which can be
condensed to recover thermal energy. This energy can be used
elsewhere in the plant.
• No pressure vessel is required because the dryer operates at
atmospheric pressure.
• Exhaust volume is much less than comparable heated air dryers.
So if an RTO is used, it will be considerably smaller, and less
expensive.
Dupps also provides complete system installation for Airless Dryer systems, including combustion system and controls, heat exchanger, drum, ductwork, cyclone and recirculation fans. Complete specifications
