The column of reactive distillation was improved from compound tower to sieve traytower which is famous for its lower cost of equipment and simpler operation and cleaning.
反应精馏塔由原来的复合型塔改为单纯筛板塔，操作清洗简单、设备费用低。
2
The design method of structures of sieve traytower is discussed. Some new computation methods and simple formula are proposed. Simulated computations are carried out by practical examples.
对筛板塔的结构设计问题进行了讨论，提出了一些新的计算方法和简化的计算公式，并用实例进行了模拟计算。
3
This paper summaries the fluid mechanics property and the research of mass transferred property, the advanced progress of the New VST (New Vertical Sieve trayTower) in our country is also expounded.