工程科学学报2017，Vol.39Issue(1)：54-60,7.DOI:10.13374/j.issn2095-9389.2017.01.007
高固含固液搅拌槽内颗粒悬浮与混合特性
Particle suspension and mixing characteristics in a solid-liquid stirred tank with high solid content
摘要
Abstract
The suspension and mixing characteristics of high-content solid particles were experimentally studied in a tank stirred with an Intermig impeller.An optical fiber technology was adopted to measure the bottom and axial solid concentration under different conditions of impeller diameter,rotational speed and impeller-bottom distance,and the critical suspension speed and power consumption were also investigated at the same time.The results show that the Intermig impeller has good axial mixing performance in the solid-liquid stirred system with high solid content.High impeller diameter and low impeller-bottom distance could improve the solid suspension and uniform distribution with low power consumption.By analyzing and fitting the experimental results,the bottom solid uniformity is calculated by Froude number with the equation of Q =0.58Fr-0.35 and the power number is calculated by Reynolds number with the equation of NP =2.1Re-0.2.关键词
搅拌槽反应器/颗粒/混合特性/悬浮Key words
stirred tank reactor/particles/mixing characteristics/suspension分类
化学化工引用本文复制引用
赵洪亮,殷攀,张立峰..高固含固液搅拌槽内颗粒悬浮与混合特性[J].工程科学学报,2017,39(1):54-60,7.基金项目
国家自然科学基金资助项目(51504018) （51504018）
中国博士后科学基金资助项目(2015M580986) （2015M580986）
中央高校基本科研业务费资助项目(FRF-TP-15-069A1) （FRF-TP-15-069A1）
