论文部分内容阅读
综述了近20年来自浮颗粒的固液两相悬浮和气液固三相分散的研究结果 ,并与下沉颗粒体系的规律作了比较 ,发现自浮颗粒三相分散规律与下沉颗粒的三相分散规律存在着很多差别。前者的悬浮难点在液面 ,要求搅拌桨能提供液面是上推式的流型 ;而后者的悬浮难点在釜底 ,要求搅拌桨能提供釜底是下压式的流型
The results of solid-liquid two-phase suspension and gas-liquid-solid three-phase dispersion from floating particles in recent 20 years are summarized and compared with the rule of subsidence particle system. It is found that the three- There are many differences between the phase dispersion rules. The former is difficult to float in the liquid surface, requiring the impeller to provide a push-up liquid flow pattern; the latter is difficult to suspend the bottom of the tank, impeller is required to provide under-pressure type flow pattern