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(Concentration), Water removed by simple evaporation process
Evaporators…
Plate evaporators
- liquid flows over plates
- as steam is supplies, liquid get concentrated
- become viscous
Falling film evaporator
- liquid flows down along tubes
- liquids gets distributed as thin film over the heating surface
- suitable for removing water from viscous products
Forced film evaporator
- liquid film are mechanically driven
- suitable for producing dry product concentrates
Centrifugal forced film evaporator
- evaporate the liquid very quickly
- suitable for concentrating even heat-liable substances
- centrifugal force is used
- liquid pass on over heated plates or conical surfaces for instantaneous evaporation
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- Water removed by simple evaporation process
- Evaporators consists of:
- heating device for supply of steam
- unit for separation of concentrated product & vapor
- condenser - condense vapor