Study on the solid–liquid suspension behavior in a tank stirred by the long-short blades impeller

Zewen Chen; Yongjun Wu; Jian Wang; Peicheng Luo

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Study on the solid–liquid suspension behavior in a tank stirred by the long-short blades impeller

Full Length Article | Updated：2026-01-06

- Study on the solid–liquid suspension behavior in a tank stirred by the long-short blades impeller
- Study on the solid–liquid suspension behavior in a tank stirred by the long-short blades impeller
- 中国化学工程学报（英文版） 2022年47卷第7期页码：79-88
- Affiliations：
  
  1. School of Chemistry and Chemical Engineering, Southeast University,Nanjing,China,211189
  2. Beijing System Engineering Institute,Beijing,China,100034
  3. CAS Key Laboratory Of Energy Regulation Materials,Shanghai,China,200032
- Author bio：
- Funds：
- DOI：
  中图分类号：
- 纸质出版：2022
- Accepted：
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Zewen Chen, Yongjun Wu, Jian Wang, 等. Study on the solid–liquid suspension behavior in a tank stirred by the long-short blades impeller[J]. 中国化学工程学报（英文版）, 2022,47(7):79-88.

Zewen Chen, Yongjun Wu, Jian Wang, Peicheng Luo. Study on the solid–liquid suspension behavior in a tank stirred by the long-short blades impeller[J]. Chinese Journal of Chemical Engineering, 2022, 47(7): 79-88.
Zewen Chen, Yongjun Wu, Jian Wang, 等. Study on the solid–liquid suspension behavior in a tank stirred by the long-short blades impeller[J]. 中国化学工程学报（英文版）, 2022,47(7):79-88. DOI：

Zewen Chen, Yongjun Wu, Jian Wang, Peicheng Luo. Study on the solid–liquid suspension behavior in a tank stirred by the long-short blades impeller[J]. Chinese Journal of Chemical Engineering, 2022, 47(7): 79-88. DOI：

摘要

Abstract

We investigated the solid-liquid suspension characteristics in the tank with a liquid height/tank diameter ratio of 1.5 stirred by a novel long-short blades (LSB) impeller by the Euler granular flow model coupled with the standard

turbulence model. After validation of the local solid holdup by experiments

numerical predictions have been successfully used to explain the influences of impeller rotating speed

particle density

particle size

liquid viscosity and initial solid loading on the solid suspension behavior

i.e

. smaller particles with lower density are more likely to be suspended evenly in the liquid with higher liquid viscosity. At a low impeller rotating speed (

)

increase in

leads to an obvious improvement in the solid distribution homogeneity. Moreover

the proposed LSB impeller has obvious advantages in the uniform distribution of the solid particles compared with single Rushton turbine (RT)

dual RT impellers or CBY hydrofoil impeller under the same power consumption.

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