Study of Droplets in converter slag
Droplets are of critical interest for many metallurgical processes. In the basic oxygen furnace metal droplets generated by the impinging gas jet increase the slag-metal contact and enhance significantly the rates of the decarburization and dephosphorization. However residence time and the nature of the droplets are still a matter of discussion. In the present work, the formation of droplets in the basic oxygen furnace was studied using cold model. A low melting point Ga-In-Sn alloy was used with hydrochloric acid on the top to simulate the slag. The sizes of the droplets were studied at different lance heights and flow rates. From observation of the metal droplet movements and their velocities, it was concluded that the residence time was greatly affected by the turbulent viscosity. In a converter, the droplets could stay in the slag for even 1 minute.
Droplets Residence time
Mattias Ek Du Sichen
Department of Materials Science and Engineering,Royal Institute of Technology, SE-10044 Stockholm, Sweden
国际会议
Ninth International Conference on Molten Slags,Fluxes and Salts(第九届国际熔渣、溶剂与熔盐学术会议 MOLTEN12)
北京
英文
1-7
2012-05-27（万方平台首次上网日期，不代表论文的发表时间）