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| Numerical Simulation of Solid-Liquid Mixing Characteristics of Vanadium Shale with Stirred Tank Shape |
| Received:June 29, 2022 Revised:July 14, 2022 |
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| DOI：doi：10.3969/j.issn.1007-7545.2022.11.011 |
| KeyWord:vanadium shale; stirred tank; bottom shapes; computational fluid dynamics; solid-liquid two-phase flow |
| Author | Institution |
| HU Yue |
武汉科技大学 资源与环境工程学院;;国家环境保护矿冶资源利用与污染控制重点实验室;;钒资源高效利用湖北省协同创新中心;;钒资源高效利用湖北省协同创新中心 |
| ZHANG Yi-min |
武汉科技大学 资源与环境工程学院 |
| XUE Nan-nan |
武汉科技大学 资源与环境工程学院 |
| ZHENG Qiu-shi |
武汉科技大学 资源与环境工程学院 |
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| Abstract: |
| Stirred tank is important equipment for industrial application of wet vanadium extraction, but in practical application, there are problems of uneven mineral mixing and easy deposition at bottom of the stirred tank. The solid-liquid flow field of stirred tank with different bottom shapes was numerically simulated through computational fluid dynamic (CFD) FLUENT software by using multiple reference frame method (MRF), standard k-ε equation and Euler-Euler multiphase flow model. The results show that flat bottom agitation tank for big size particles is prone to solid phase deposition, and round bottom agitation tank can effectively solve the problem of deposition and stir more even and groove stir dead zone have fallen sharply. The flow field in different sites in the groove, the circular arc bottom agitation tank is better than the flat bottom agitation tank, turbulent kinetic energy and speed is helpful to improve the efficiency of solid-liquid mixture. |
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