For many applications drying under motion is an advantage: powders and pellets are mixed during the drying process for a homogeneous heat transfer to the product.
Also, a rotary-type dryer can be (un)loaded contamination-free and with less effort.
The drum is dual cone shaped and optionally available as a tumbler.
This high-performance system (patent application filed) has been designed for efficient vacuum drying under rotating conditions.
The chief advantage over conventional rotary dryers is that the RTSD (Rotary Dryer System Dreisbach) is mounted in an overhung position which means that the transfer
of the heating medium as well as measurements, vacuum production and drive are taken over by a rotary joint. This allows clean-room installation and use in sterile
process environments.
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