化学工程2011，Vol.39Issue(12)：85-89,5.
基于CFD考察新型连续结晶罐的性能
Study on performance of new continuous crystallizer based on CFD simulation
摘要
Abstract
A computational fluid dynamics ( CFD) numerical simulation method was used to investigate the influence of different functional areas of new crystallizer ( mixing zone, crystallization zone) on the crystallization process of glutamate. To evaluate the uniformity of suspended solid particles and the change of the ratio of the overflow liquid and the feed liquid, the different stirring speeds and different crystal sizes of the mixing zone and the crystallization zone were investigated. The results show that the mixing zone and the crystallization zone, which have different demands for stirring intensity, play different roles in the crystallization process. The impeller of the mixing zone can effectively adjust the ratio of overflow liquid and feed liquid, and reduce the supersaturation of the feed liquid crystal; the impeller of the crystalline zone plays a main role in adjusting the suspension of the crystal in the whole tank. By adjusting the speed of impellers in each zone, the ratio of overflow liquid to feed liquid is above 15, and the tank crystal particles uniformity suspended is below 0. 2. In that case, it is suitable for the continuous-crystallized glutamate and the preserve of crystal.关键词
新型连续结晶罐/CFD数值模拟/固液二相流Key words
new continuous crystallizer/ CFD numerical simulation/ liquid-solid two-phase flow分类
化学化工引用本文复制引用
朱腾飞,张建华,张宏建,毛忠贵..基于CFD考察新型连续结晶罐的性能[J].化学工程,2011,39(12):85-89,5.基金项目
国家"863"计划项目(2006AA020301-02) （2006AA020301-02）
