Forced Circulation evaporator
These 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 evaporator
Typical products are:
- NaCL - KCL- NH4CL- BaCL2-CaCL2-MgCL2 etc
- Na2SO4-K2 SO4-(NH4)2SO4- ZnSO4-MnSO4-MgSO4-NiSO4 etc
-Na2SO3-Na2S -Na2CO3-K2SO3-NaAC-etc
Model |
Single-effects |
Double-effects |
Triple-effects |
Four-effect |
Water evaporated Kg/h |
1000 |
1000 |
1000 |
1000 |
Steam Pressure Mpa |
≥0.4 |
≥0.4 |
≥0.4 |
≥0.4 |
Steam cost Kg/h |
800 |
500 |
330 |
290 |
Cooling water cost(32 inlet 40 outlet) T/h |
90 |
40 |
27 |
18 |