Dissolution of lime into BOS slag: from laboratory experiment to industrial converter
Fast dissolution of lime into slag is a key to form a suitable slag in the BOS process. Many studies have been carried out to investigate the dissolution of lime into slag regarding the mechanism, the dissolution rate (kinetics) and the effect of various factors such as the density, the particle size and the reactivity of the lime on the dissolution. The experiments reported were carried out either under static conditions by heating the slag/ lime mixture, dipping a lime rod into stagnant slag, directly observing the slag penetration into a lime rod by using X-ray, or under dynamic conditions by rotating a lime rod in a synthetic slag, either of which may not be close to the conditions in the actual BOS process. In this study, the dissolution of lime into BOS slag was studied by characterising lime particles in the slag samples taken from laboratory hot metal dephosphorisation experiments in an induction furnace, a 6t pilot plant converter and a 320t industrial converter. By comparing the lime dissolution behaviour into BOS slag under varying dynamic conditions in the present study with that under laboratory static experiments from literature, it is expected to provide more insights on the mechanism of lime dissolution into BOS slag in the BOS process.
Lime Dissolution Mechanism BOS slag
Zushu Li Martyn Whitwood Stuart Millman Johan van Boggelen
Tata Steel RD&T, Swinden Technology Centre, Rotherham, United Kingdom Tata Steel RD&T, Teesside Technology Centre, Middlesbrough, United Kingdom
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
1-13
2012-05-27（万方平台首次上网日期，不代表论文的发表时间）