Rototherm® PrincipleArtisan's patented technology
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TheoryCentrifugal force exerted by the rotor blades 3 holds a thin film of feed material 4 against the heated process wall 2 . The turbulent thin-film between the rotor blade and the process wall covers the entire heated section at all times, regardless of feed or evaporation rates. This film is constantly renewed as the progressively more concentrated material is displaced towards the bottoms discharge nozzle 6 by the incoming feed 4 . High vacuum is maintained in the system to minimize the processing temperature. As the residence time is generally measured in seconds, the degradation of heat sensitive materials is minimized. |
Rototherm® Cutawayco-current operation
counter-current operation |
| 1 Solvent Vapor Out | 4 Feed In |
| 2 Process Wall | 5 Heating Medium In/Out |
| 3 Rotor Blades | 6 Bottoms Discharge |
- Co-Current Design
- The liquid and resulting vapor travel in the same direction. This method is preferred when only partial product concentration is desired.
- Counter-Current Design
- The liquid and resulting vapor travel in opposite directions. This method is preferred when high product concentration is desired.
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