Thin film evaporator Comparative Characteristics

The material continuously enters the horizontal evaporator from the large diameter end, is accelerated and distributed by the wiper, and immediately forms a thin flowing film on the heating surface. The conical thin-film evaporator relies on a centrifugal force applied by the rotor to the material . This centrifugal force has two effective forces, one perpendicular to the heating surface and the other towards the large diameter end body (note: the same result also appears in the vertical conical type In the thin-film evaporator, the materials are accelerated by these forces, and the incoming materials ensure that the heating surface is fully moist, and does not depend on the evaporation ratio or the feeding speed. Therefore, local material overheating and thermal degradation are reduced or completely eliminated. In this process, the light components ( low boilers ) co-currently (in the same direction as the liquid film) pass through the horizontal thin film evaporator into the vapor-liquid separator , where the liquid droplets and foam produced by vapor-liquid separation are It is crushed into the liquid phase (high boiler), and the separated vapor enters the external condenser or the next process; the recombination (high boiler) climbs along the heating wall to the small end outlet and is discharged.

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