DTB结晶器在结晶理论方面得到了广泛的研究,并可以精确地建模。其独特的生长区和澄清的母液使得可以根据动力学参数进行定义,从而可以确定生长和成核速率。
这些特征使 DTB 结晶器非常适合数学描述并受到良好的操作控制。
导流筒折流板式结晶器 (DTB) 由五个基本元件组成:
专门设计用于生产粒度分布窄的粗晶体。DTB 可以产生大颗粒的晶体(最大 3 毫米),因为它可以温和地搅动正在生长的晶体,并且破碎非常有限。它有一个受控的停留时间,以实现最佳生长,并且运行周期长,结壳有限。
所需固体密度的浆料在导流筒结晶器内循环,由底部法兰叶轮泵推动。DTB 结晶器的机械能量输入低于 FC 结晶器的机械能量输入,这要归功于降低的压降限制了晶体磨损,因此减少了二次成核。
较小和特定尺寸的晶体从折流板区取出,用过热的澄清溶液将其溶解在外部循环回路中。
所述的过热可通过蒸发来释放掉,并且逐渐形成的过饱和度导致悬浮晶体的生长。蒸出的溶剂用于后续的工艺步骤,或通过应用选择的再压缩系统来实现重新使用。


GEA’s past fiscal year was one of significant growth and further profitability gains. In particular, the technology group substantially increased order intake, with all divisions contributing here. GEA also made progress in all Mission 30 strategic growth areas. In addition, GEA met key interim targets under its climate plan ahead of schedule. Major milestones in fiscal year 2025 were admission to the DAX index, the award of one of the largest contracts in the company’s history, and streamlining of the corporate structure.
Thanks to a new SmartParc manufacturing site, food processors in the U.K. are cutting their running costs and emissions. With GEA heating and cooling technology at its core, this collaborative production model demonstrates how innovation is accelerating the industry’s net-zero ambitions.