强制循环结晶器是最常见的结晶器类型。它设计简单、易于操作,通常用在相对平缓或反向溶解度变化的产品的蒸发结晶,或相对粘稠的介质,以及结垢是主要问题的应用中。它的机械能输入较高且二次成核率也较高,因此在不需要大晶体时,它就是最佳的解决方案。
强制循环结晶器由四个基本组件组成:
所需固体密度的浆料从结晶器罐循环通过换热器,过热并返回蒸发室。过热通过蒸发来释放,而不断变化的过饱和度导致悬浮晶体的生长。蒸出的溶剂被引导至后续工艺步骤,或通过再压缩系统来实现内部重新使用。
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