Abstract：In order to investigate the optimum bottom blowing parameters and inclusion distribution， the influence of inclusion removal under different process parameters and their own properties were studied. Based on the hydraulic model experiment of the 60 t refining furnace，the effects of air blowing， time and particle size on the removal of inclusions and spatial distribution of inclusions were studied by using high-speed camera and professional image processing software （Image Pro Plus）. The results show that the best flow rate is 0.08 m3/h in the ladle bottom blowing process. The inclusion removal rate is similar with the time and the inclusions are basically removed for fourteen minutes.The inclusions of 200 to 355 μm are easier to be removed than the micro-inclusions of 105 to 150 μm. The number of inclusions in gas-liquid two-phase region is less than that in other regions， and the characteristic size is larger. There is a weak flow zone at the far bottom of the gas permeable brick. The density of inclusions in this area is larger and， it is not easy to be removed.
收稿日期: 2017-02-17
出版日期: 2017-09-29
引用本文:
巨建涛，韦建庆，刘文果. 钢包底吹氩中非金属夹杂物分布的水力学模拟[J]. 钢铁, 2017, 52(10): 45-50.
JU Jian-tao，WEI Jian-qing，LIU Wen-guo. Hydraulic model experiment of non-metallic inclusion distribution in a bottom-blown argon ladle furnace. Iron and Steel, 2017, 52(10): 45-50.
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2017, Vol. 52 
