Evaporation is the process, which involves thermally removing a liquid from a solution, suspension or emulsion. The starting and the end products are in the liquid phase and the end product obtained is in its concentrated from.

Depending on the liquid characteristics to be concentrated, its temperature sensitivity, thermal degradation properties etc different types of evaporators have been designed and are used for variety of applications in different industries. Single stage systems are employed, where the vapour energy of one stage is used as the heating media for the next stage. Further efficiency increase is obtained by using Thermal Vapour Recompression system or Mechanical Vapour Recompression system.

Agitated Thin Film Dryer / Evaporator

Slurries, thick concentrates, viscous materials can be concentrated / dried in this equipment. The fluid to be handled is spread on the inner wall of the dryer / evaporator with the multi armed agitator resulting into a thin film on the walls. Steam / Thermic fluid / other heat source provides the theraml eneregy required for evaporation. Dried material / cake or the concentrated fluid is continuously discharged from the system, while the evaporated water/ solvent is condensed in a condenser.

APPLICATIONS OF AGITATED THIN FILM DRYER / EVAPORATORS

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