Crystallization process principle and flow of china Ammonium sulfate multi-effect evaporation
The evaporative crystallization technology of china Ammonium sulfate multi-effect evaporation is to introduce the secondary steam generated by the first evaporator into the heating chamber of the latter evaporator as a heat source.
The method of treating industrial wastewater containing ammonium sulfate is to pretreat the wastewater first, then evaporate, concentrate, crystallize, and finally use a centrifuge for separation. -effect evaporation evaporative crystallization.
The evaporative crystallization process of china Ammonium sulfate multi-effect evaporation should select the specific process flow according to the design parameters of ammonium sulfate. For example, take the three-effect evaporation crystallization process as an example:
When ammonium sulfate is evaporated and crystallized, the material enters the three-effect, one-effect, and two-effect evaporators for evaporation and concentration in turn, and the concentrated material is pumped to the next process from the discharge.
The flow of ammonium sulfate material: the raw liquid enters the feed pump and is sent to the preheater. After heat exchange, it first enters the three-effect evaporator, then enters the first-effect evaporator, and finally enters the second-effect evaporator through the first-effect feed pump. , Two-effect and three-effect evaporators are circulated through the material pump. When evaporated and concentrated to a certain concentration, it is pumped to the thickener through the discharge pump, and then enters the centrifuge for centrifugal separation.
The steam flow direction of the evaporation and crystallization process of china Ammonium sulfate multi-effect evaporation: the steam header enters the first-effect heating chamber as a heat source, and the secondary steam generated by the first-effect separation chamber enters the second-effect heating chamber, which is used as a second-effect heat source. The secondary steam from the effect separation chamber enters the three-effect heating chamber and is used as a three-effect heat source. The secondary steam from the three-effect separation chamber enters the preheater for heat exchange, and then enters the condenser, and the condensed liquid enters the condensed water tank.