Development of Liquid-liquid Extraction Device with Cuette-Taylor Flow

本研究的目的是开发一种用于核乏燃料后处理的简易提取设备。利用Cuette-Taylor流(同轴旋转式萃取器)构建了一种同轴旋转式液液溶剂萃取器，该萃取器由同轴圆筒组成，内筒旋转，外筒固定。利用本研究开发的计算程序，结合同轴旋转萃取器内流体力学行为的观测数据，对同轴旋转萃取器的萃取性能进行了分析。在1989-1991年的项目期间，我们主要做了以下工作：(1)实验结果综述和关联式利用实验结果进行参数优化设计，通过数据采集，得到了几个同轴式旋转接触器流体力学行为的经验关联式。(2)计算模拟的发展编制了适用于核乏燃料后处理过程的Purex系统的计算程序。(3)同轴式旋转萃取器的性能利用上述关联式的计算程序对同轴旋转萃取器的提取性能进行了分析。证实了同轴旋转萃取器在核乏燃料后处理中的应用。

The purposes of the present study were to develop a simple extraction equipment for the nuclear spent fuel reprocessing. A coaxial rotary liquid-liquid solvent extractor containing coaxial cylinders, an inner cylinder is rotating and an outer cylinder is fixed, using the Cuette-Taylor Flow(coaxial rotary extractor)was constructed. The extraction performance of coaxial rotary extractor was analyzed by using the computational code which was developed in the present study taking accounts of observed data of the hydrodynamic behavior in the coaxial rotary extractor. During the term of this project from 1989 to 1991, we studied the following works.(1)Survey of experimental results and correlationsSeveral empirical correlations of hydrodynamic behavior in the coaxial rotary contactor were obtained by the data survey with optimal parameter design using experimental results.(2)Development of computes simulationThe computational program for Purex system applicable to the nuclear spent fuel reprocessing process was developed.(3)Performance of the coaxial rotary extractorThe extraction performance of coaxial rotary extractor was analyzed by using the computational program with the above correlations. It was confirmed that the coaxial rotary extractor was useful for the nuclear spent fuel reprocessing.