转盘塔（rotating disc column、RDC、zhuanpanta），一种常用的液-液萃取设备。塔内装有多层的固定环形板，中间一搅拌轴，轴上装有多层圆盘，每层圆盘都位于相邻两固定环形板的中间。转盘的作用促进了液滴的分散，有利于改善传质效率。是工业上（特别是炼油工业中）使用较多的萃取塔（参见搅拌式萃取塔）。
根据具体情况随时可以快速调换相应的凸模和圆凹模，及转盘的快速定位，类似于数控转塔冲床，来达到加工产品多品种的要求。
We could quickly change punch and round concave at anytime production required, the quick location of turntable like nc revolving tower type press machine, it could produce many kinds of productions.
通过对提高萃取塔效率技术措施的讨论，指出转盘萃取塔的转盘“转与不转”对萃取效率没有影响。
Through discussion of how to improve the extractive efficiency, pointed that whether the rotary disc is turning or not has no effect on extractive efficiency.
通过设计与生产实践，对转盘式萃取塔的几何相似放大与结构设计方面的理论与实践，提出了探讨建议。
Some suggestions on the theory and practice in geometric scale up and construction design of rotating disk extraction columns have been presented.
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