工程科学学报2016，Vol.38Issue(5)：637-643,7.DOI:10.13374/j.issn2095-9389.2016.05.007
基于PIV技术的钢包临界卷渣行为水模型研究
Water model study on critical slag entrapment behavior based on PIV technology
摘要
Abstract
The slag entrapment process and the flow field of a specific ladle at critical flow rate are investigated based on particle image velocimetry ( PIV) technology, and the change of fluid velocity at the region where slag is entrapped into steel during the whole slag entrapment process is studied by water modelling. The influence of the kinematic viscosity of slag on the critical slag entrapment velocity is analyzed quantitatively. The critical slag entrapment velocity collected from experiments is compared with the calculated one by the traditional theory. It is shown that the critical slag entrapment process can be divided into 8 stages from the occurrence to the end, and the fluid velocity at the point where slag is entrapped into steel increases first, then decreases and increases again during the 8 stages. The kinematic viscosity of slag has great influence on slag entrapment. When the kinematic viscosity of slag increases, the critical flow rate and critical slag entrapment velocity enlarge, and the linear correlation relationship between the critical slag entrap-ment velocity and the kinematic viscosity of slag becomes more obvious. A relational expression between the critical slag entrapment velocity and the kinematic viscosity of slag is derived from experimental data by liner fitting. At the end of this article, a correctional expression of the critical slag entrapment velocity is put forward based on the experimental data and the theoretically calculated values.关键词
炼钢/流场/卷渣/速度/运动黏度/粒子图像测速Key words
steelmaking/flow fields/slag entrapment/velocity/kinematic viscosity/particle image velocimetry分类
矿业与冶金引用本文复制引用
吴华杰,张漓,徐阳,岳峰,冯美兰,魏崇一,郭浩..基于PIV技术的钢包临界卷渣行为水模型研究[J].工程科学学报,2016,38(5):637-643,7.基金项目
中央高校基本科研业务费资金资助项目(FRF-TP-14-101A2) （FRF-TP-14-101A2）
