文献类型：期刊文献

英文题名：A Novel Impeller Design for Intensified Mixing of High-Solid Viscous Slurries Towards Future Sonomechanical Hybrid Systems

作者：Li, Guo[1]; Yu, Qianqian[1]; Li, Shen[1]; Chu, Yuejian[1]; Zhu, Huihao[1]; Ma, Yulu[1]; Wang, Yu[1]; Xie, Linsheng[1]

机构：[1] School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai, 200237, China

年份：2026

外文期刊名：SSRN

收录：EI(收录号：20260062829)

语种：英文

外文关键词：Agriculture - Computational fluid dynamics - Depolymerization - Design - Hybrid systems - Mixers (machinery) - Slurries

摘要：Efficient mixing of high-solid viscous slurries is the foundation for the application of ultrasonic assistance in fields such as batteries, food, and agricultural manufacturing. This work designed a novel type of impeller element featuring fan-shaped primary blades integrated with specially configured rods (rectangular, triangular, and plow-shaped). Through quantitatively characterized by dimensionless evaluation indicators, it was found that the novel impeller featuring fan-shaped auxiliary blades and plow-shaped rods had more advantages on chaotic mixing and power pumping due to wider axial sweeping scope and enhanced dragging capacity which was conducive to the introduction of ultrasonic energy. A systematic evaluation combining computational fluid dynamics and visualized experiments was conducted on the twin-shaft horizontal mixer composed of impeller kneading and series combination. The results showed that the novel impeller series mixer further expanded high velocity and shear regions, achieving a 3.9% reduction in stagnant zones and an impressive 48.5% increase in average depolymerization energy density, indicating superior dispersion capability for viscous slurries. The new proportional index for correlating simulation and experiment was proposed in this work, showing that higher dragging capacity of novel impeller series mixer increased volume exchange of solid particles between radial and longitudinal region, as well as their auxiliary blades markedly enhanced particle dispersion efficiency in central region through synergistic kneading interactions with the stirring elements, thereby improving the distribution performance and achieving effective self-cleaning around barrel inwall, stirring blades and rotating rods. This work provides a mechanical mixing foundation that is particularly suitable for future integration with ultrasonic assistance. ? 2026, The Authors. All rights reserved.