GEA Wiegand is one of the world leaders in the manufacture of evaporation plants for the concentration of all types of liquid food, organic and inorganic solutions and effluent.
Evaporation plants are used as a thermal separation technology, for the concentration or separation of liquid solutions, suspensions and emulsions.
A liquid concentrate that can still be pumped is generally the desired final product. Evaporation may however also aim at separating the volatile constituents, or distillate, as would be the case in a solvent separation system. During these processes, it is usual that product qualities are maintained and preserved.
These, together with many other requirements result in a wide variety of evaporator types, operating modes and arrangements.
GEA Wiegand has substantially contributed to the development of evaporation technology. The first Wiegand evaporator, built in 1908, was a patented multiple-effect circulation evaporator.
This concentrated liquids in a gentle and efficient manner in a way unparalleled in its time. It was easy to control and had a compact arrangement.
Further technical developments led to the first Wiegand falling film evaporator, built in 1952, which combined these considerably improved, essential characteristics with new process possibilities, especially in the field of evaporating heat-sensitive products. At the same time, the thermal efficiency of evaporation plants was considerably improved.
Thanks to its advantages, the falling film evaporator has virtually replaced other evaporator types in many fields. Forced circulation and circulation evaporators still have some significance, whereas special types such as spiral tube, counterflow or stirrer evaporators are only used in special circumstances.
Depending on the particular requirement, we install a wide variety of evaporators, in tube or plate evaporator design. These plants are complemented by the additional equipment which is necessary for heating, cooling, degassing, crystallization, rectification and condensation.
- Falling film evaporators
- Circulation evaporators
- Stirrer evaporators
- Plate evaporators
- Spiral tube preheaters
- Forced circulation evaporators
- Climbing film evaporators
- Fluidized bed evaporators
- Counterflow trickle evaporators
- Rising film evaporators
- Short path falling film evaporators
For further information please take a look at our Brochure Evaporation Technology.