（1. School of Metallurgical and Ecological Engineering， Uuniversity of Science and Technology Beijing， Beijing 100083， China 2. Collaborative Innovation Center of Steel Technology， Uuniversity of Science and Technology Beijing， Beijing 100083， China 3. Steelmaking Department， Shougang Jingtang United Iron and Steel Co.， Ltd.，Tangshan 063200， Hebei， China）
Abstract：In order to achieve efficient combined-blowing effect and improve the result of molten pool stiring， the influence of bottom blowing configuration on the agitating and mass transfer effects of slag-steel interface during the blowing process of BOF was studied by two indexes （mixing time and mass transfer rate）. The experimental results show that the optimal layout scheme is with eight inner holes， and at that moment， the mass transfer rate of slag-steel interface is the largest while the mixing time is the shortest. The mixing time of most bottom-blowing arrangements is inversely related to mass transfer rate. Overall， the more the number of holes in the inner ring are， the larger the mass transfer rate is at the slag-steel interface， while the shorter the mixing time is. For the 2-6 distribution， with uniform distribution of the bottom blowing element， the mixing and mass transfer effect of the arrangement is better， when the inner ring of the bottom blowing element is merged together with the outer ring.
黄 博，孙彦辉，白雪峰，赵长亮，罗 磊，田志红. 300 t脱磷炉渣-钢界面搅拌与传质效果模拟[J]. 钢铁, 2017, 52(10): 38-44.
HUANG Bo，SUN Yan-hui，BAI Xue-feng，ZHAO Chang-liang，LUO Lei，TIAN Zhi-hong. Simulate on agitating and mass transfer effect of 300 t dephosphorization slag-steel interface. Iron and Steel, 2017, 52(10): 38-44.
2017, Vol. 52 
