Gas–liquid mass transfer and flow phenomena in a peirce–smith converter: A numerical model study

论文摘要

A numerical model was established to simulate the flow field in a Peirce–Smith converter bath, which is extensively adopted in copper making. The mean phase and velocity distribution, circular area, and mean wall shear stress were calculated to determine the optimal operation parameter of the converter. The results showed that the slag phase gathered substantially in the dead zone. The circular flow was promoted by increasing the gas flow rate, Q, and decreasing the nozzle height, h. However, these operations significantly aggravate the wall shear stress. Reducing the nozzle diameter, d, increases the injection velocity, which may accelerate the flow field. However, when the nozzle diameter has an interval design, the bubble behaviors cannot be combined, thus, weakening the injection efficiency. Considering the balance between the circular flow and wall shear stress in this model, the optimal operation parameters were Q = 30000–35000 m~3/h, h = 425–525 mm, and d = 40 & 50 mm.

论文目录

• 1. Introduction
• 2. Mathematical model and examination
•   2.1. Governing equation and mathematical model
•   2.2. Examination of the model
• 3. Results and analysis
•   3.1. Gas flow rate
•   3.2. Height of the nozzle
•   3.3. Nozzle diameter
• 4. Conclusion

文章来源

类型: 期刊论文

作者: Hong-liang Zhao,Xing Zhao,Liang-zhao Mu,Li-feng Zhang,Li-qiang Yang

来源: International Journal of Minerals Metallurgy and Materials 2019年09期

年度: 2019

分类: 工程科技Ⅰ辑

专业: 冶金工业

单位: School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing,Beijing Key Laboratory of Green Recycling and Extraction of Metal

基金: financially supported by the Guangxi Innovation-Driven Development Project (No.AA18242042-1),the National Natural Science Foundation of China (No.51504018)

分类号: TF71

页码: 1092-1104

总页数: 13

文件大小: 1125K

下载量: 9