How Does a Steam Tube Dryer Work?
Concentric rows of tubes (one-six rows depending on the dryer size and duty) run the length of the dryer.
Since the Steam Tube Dryer utilizes the latent heat of steam to drive the drying process, only a small amount of sweep air is required to remove the water vapor driven off of the product generated in the drying process. This is usually less than about 30% of the exhaust gas required for a direct heat dryer for the same process parameters. The gap between the stationary Feed and Discharge housings at either end of the Steam Tube Dryer are sealed to keep ambient air from leaking into the dryer. Various sealing technologies are used depending on the process parameters. These seals may be as simple as tensioned woven fabric belts, and as sophisticated as machined packed and inert gas purged seals. LOUISVILLE Steam Tube Dryers are custom engineered for their specific application. The steam side component of the Steam Tube Dryer is a pressure vessel, designed and manufactured in conformance with the latest edition of ASME Section VIII, Division I. They are stamped and registered with the National Board. Materials of construction range from carbon