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ADVANTAGES
- Constantly renewed liquid film
- Optimized retention time of the product
- Short downtimes for assembly, maintenance, and inspections
- Rapid spare parts service
- Improved heat transfer thanks to optimized wiper design
- Lower risk of corrosion
- For selected rotor types, no lubrication of the lower rotor bearings is necessary
- Custom design – optimum heating surface; rotor type according to requirements
Functional principle
The thin-film evaporator consists of an internal rotor and a cylindrical heating surface that is heated from the outside with steam or thermal oil. The medium is distributed around the circumference of the head with a distribution ring and flows down the heated evaporator wall.
Special wiper elements ensure an even distribution of the medium and create a liquid film. Turbulence forms on the wiper blades, ensuring both efficient heat transfer and continuous renewal of the liquid film. This means that the medium only comes into contact with the heating surface for a short time and is exposed to a minimal temperature load.
This gentle evaporation process achieves the highest product quality.
Areas of application
- Concentration of ...
- structurally viscous substances
- highly viscous substances
- temperature-sensitive substances
- Distillation of low-boiling media
- Special applications such as reboilers for rectification systems
- Purification by distilling valuable products from high boilers
Typical operating parameters
- Temperature range: ≤ 390°C
- Vacuum: ≥ 1 mbar abs.
- Feed: 10 kg/h to 20,000 kg/h
- Viscosities: up to 10 Pa.s
(in special cases up to 1,000 Pa.s at 20°C operating temperature)
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