Forced Circulation evaporatorThese systems can be either single or multiple effects and the vapor re-compression concept (either thermal or mechanical) is often applied. Usually, they operate from low vacuum to atmosphere pressure.As a rule, these units are used for high evaporation rates and when crystal size is not of the utmost importance or if crystal grows at a fair rate.Almost any material of construction can be considered for the fabrication of these evaporatorTypical products are:- NaCL - KCL- NH4CL- BaCL2-CaCL2-MgCL2 etc- Na2SO4-K2 SO4-(NH4)2SO4- ZnSO4-MnSO4-MgSO4-NiSO4 etc-Na2SO3-Na2S -Na2CO3-K2SO3-NaAC-etcModelSingle-effectsDouble-effectsTriple-effectsFour-effectWater evaporated Kg/h1000100010001000Steam Pressure Mpa ≥0.4 ≥0.4 ≥0.4 ≥0.4Steam cost Kg/h800500330290Cooling water cost(32 inlet 40 outlet) T/h90402718