Cold Model Study on Melting of Ice Made by KCl Solution in Gas-Water Two-Phase Plume Area

College of Materials Science and Engineering, Taiyuan University of Technology, 030024 Yingze West Street No. 79, Taiyuan City, Shanxi Province, P.R. China

^a Corresponding author: chenchao@tyut.edu.cn

Abstract

With the increasing of scrap usage in steelmaking processes, the melting of scrap becomes a very important phenomenon that limits the productivity and tap-to-tap time. Ice-water systems have been widely used to study the melting of scrap and alloys. In this study, the melting rate of saturated KCl solution ice spheres in gas-water two-phase plume zone are studied as a function of height of location, gas flowrate, and melt temperature. The results show that the shape of the ice sphere gradually changes firstly from spherical to elliptical, and finally becomes an irregular state. 1) The decreasing of the distance between the ice sphere and the bottom plugs, 2) the increasing of the gas flowrate, 3) the slightly increasing of bath temperature will all benefits the melting rate of ice spheres.