Forced Circulation Evaporator is used for the concentration of high viscous material & products with higher solids. It consists of a circulating pump, a separating space, an evaporator body with a vapour outlet at the top, a deflector plate, an outlet for discharge of thick liquor & an external heating surface. Liquid is circulated through tube by centrifugal pump where it is superheated & flashes into a mixture of vapour & liquid and two phase mixture impinges on a deflector plate in the separating space & vapors are removed from top and liquid is returned to centrifugal pump.
The forced circulation evaporator comprises a heat exchanger, a separator and a circulation pump.
The product is sent to the exchanger where it is heated and then sent to the separator. After evaporation, the liquid portion is pumped again to be resent to the exchanger.
