| 铜阳极泥立式釜搅拌过程仿真及正交优化 |
| |
| 引用本文： | 潘荣选,黄金堤,徐志峰.铜阳极泥立式釜搅拌过程仿真及正交优化[J].有色金属科学与工程,2017,8(4):12-18. |
| |
| 作者姓名： | 潘荣选 黄金堤 徐志峰 |
| |
| 作者单位： | 江西理工大学冶金与化学工程学院, 江西 赣州 341000 |
| |
| 基金项目： | 江西省高等学校科技落地计划项目KJLD13046江西省主要学科学术和技术带头人培养计划项目20142BCB22005 |
| |
| 摘 要： | 基于计算流体力学（CFD）技术, 采用欧拉-欧拉多相流模型、多重参考系（MRF）模型及标准的k-ε湍流模型建立了25 m3铜阳极泥立式釜内固液两相搅拌过程的仿真模型, 研究不同转速下的搅拌功率数值模拟结果, 并与经验公式对比验证; 同时以立式釜截面固相体积浓度为评判指标, 以搅拌转速、桨叶安装角度、桨叶间距及阻尼挡板高度为考察因素, 采用正交试验设计方法进行搅拌条件优化研究.结果表明, 数学模型计算结果与永田进治经验公式较为吻合, 表明模型可用于搅拌模拟; 在给定条件下, 最优组合为搅拌转速100 r/min, 桨叶安装角度45°, 桨叶间距1.615 m, 阻尼挡板高度2 m.此条件下立式釜截面固相体积浓度较实际生产工况仿真增幅达13%.
|
| 关 键 词： | 铜阳极泥 浸出 立式釜 搅拌优化 正交试验 |
| 收稿时间： | 2017-01-22 |
Stirring process simulation and orthogonal optimization of vertical reactor for copper anode mud leaching |
| |
| Affiliation: | School of Metallurgical and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi, China |
| |
| Abstract: | Based on Computational Fluid Dynamics (CFD), a stirring-process simulation model of solid-liquid two-phase flow in the 25 m3 vertical reactor of copper anode mud leaching is established by using Euler-Euler multiphase model, multi-reference flame(MRF) model and standard k-ε turbulence model and the numerical simulation results of stirring power at different rotational speeds are further compared with those by the empirical formula. Meanwhile, the stirring speed, the blade installation angle, the blade distance and the damping baffle height are selected as the factors to evaluate the solid volume section concentration of vertical reactor. The orthogonal design method is applied to optimize the stirring conditions. The results show that the mathematical model is fit well with the empirical Nagata formula and it can be applied well in stirring simulation. The optimal combination is determined as follows: the stirring speed of 100 r/min, the blade installation angle of 45°, the blade distance of 1.615 m and the baffle height of 2 m. Under these conditions, the solid volume section concentration of the reactor is increased by 13% while compared with the actual production conditions. |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《有色金属科学与工程》浏览原始摘要信息 |
|
点击此处可从《有色金属科学与工程》下载全文 |
|
