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Vacuum, Evaporation & Industrial Refrigeration Technologies
Evaporation
GEA has extensive know-how in evaporation/thermal separation technology including:
- Falling film evaporators
- Counter flow trickle evaporators
- Climbing film evaporators
- Flash evaporators
- Forced circulation evaporators
- Spiral tube evaporators for the chemical and pharmaceutical industries.
The best adapted evaporator will provide users with:
» maximum reliability and working life » minimum maintenance » optimised efficiency.
These evaporators are equipped with highly efficient separation systems:
» to obtain cleaner vapour to enable the use of less expensive construction materials » to recover condensate which may be re-used in the rinsing section of the surface treatment plant.
The flow-scheme is optimised within the limits imposed by the main set conditions, i.e:
» the quality of the product to be processed » the prevention of product deterioration » the protection of the environment » the reduction of operating and maintenance costs.
Vacuum Technology
A steam jet ejector has no moving parts and is used to pump, mix, heat, cool or produce vacuum. Pressurised liquid, steam or air is used as the motive or driving fluid. The motive fluid is passed through a set of nozzles, where its pressure energy is converted into a high-velocity jet.
Crystallisation
All types of crystallisers, working to the principles of:
» evaporation » cooling or equilibrium displacement » continuous/batch crystallisation.
Designed for:
- purification of product or process streams
- industrial processing of organic or inorganic products (organic acids, fertilisers, etc.) upgrading of by-products from liquid waste in environment protection programmes
- liquid treatment stripping, ozonation, liquid-liquid extraction, centrifugation, filtration,
- decanting, spray-drying
- vapour/gas treatment: extractive distillation, scrubbing, cleaning, absorption, incineration
- solids treatment i.e. calcination, incineration, thin-film drying, flash drying, fluid-bed drying, flaking, prilling, bagging, etc.
Refrigeration
The constant progress being made in industrial processing technology demands a greater use of refrigeration cycles for:
- control or removal of the heat produced by chemical reactions or physical processes
- condensation and liquefaction for separation or recovery
- crystallisation for purification or recovery
- preservation of product characteristics and prevention of side-effects
- security measures to prevent runaway reactions, pressure rises, etc.
- containment of heat losses from an ambient and maintaining thermal equilibrium of a system, or of phase equilibrium.
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