Artisan’s Rototherm-P uses thin/wiped film evaporation to dry liquids or slurries to a free-flowing solid powder in a single pass. For many applications, it offers significant benefits over spray dryers and freeze dryers.
The Rototherm-P incorporates some special, custom-designed features:
- Robust mechanical design to handle higher torque requirements.
- All-welded ribbon blades allow space for free solids flow.
- Special extended auger section for powder discharge.
- Larger product outlet to facilitate ease of powder discharge.
The Rototherm-P has many advantages over other types of dryers.
Handling difficult products
High Turndown ratio
Reduced space for installation
Some Applications for the Rototherm-P
Producing free flowing powders with little or no moisture from liquid or slurry feed products.
Artisan’s Rototherm-P, a mechanically agitated thin-film processor, is widely used to produce free flowing powders from a variety of heat sensitive products. Rapid heat transfer, plug flow, and extremely short residence time make it the most versatile “single step” processor in the industry.
Drying a heat sensitive “photographic dye” by evaporating the solvent from a 2% solution at reduced pressure. Pre-concentration in a rising film evaporator optimizes the size of the Rototherm. A rectifying column, using the Artisan proprietary Dualflo® distillation trays, controls solids entrainement.