Thin-film and Short-path Evaporation
Thin-film Evaporator
Thin-film Evaporator
GKT thin-film evaporators cover a wide range of demanding applications, from concentrating viscous, highly viscous, and temperature-sensitive products to distilling low-boiling media and purifying valuable substances. They can also be used as reboilers in rectification systems.
Thin-film Evaporator
How it works
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.
Advantages
- Improved heat transfer thanks to optimized wiper design
- Short downtimes for assembly, maintenance, and inspections
- Constantly renewed liquid film
- Optimized retention time of the product
- Rapid spare parts service
- Lower risk of corrosion
- For selected rotor types, no lubrication of the lower rotor bearings is necessary
- Custom design – optimum heating surface and rotor type according to requirements
Applications
- Concentration of structurally viscous and highly viscous substances as well as temperature-sensitive substances
- Distillation of low-boiling media
- Special applications such as reboilers for rectification systems
- Purification by distilling valuable products from high boilers
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