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金属学报  1995, Vol. 31 Issue (19): 289-294    
  论文 本期目录 | 过刊浏览 |
CaO-SiO_2-Al_2O_3-FeO熔渣起泡行为的研究
黄宗泽;肖兴国;肖泽强
东北大学
FOAMING BEHAVIOUR OF CaO-SiO_2-Al_2O_3-FeO SLAGS
HUANG Zongze; XIAO Xingguo; XIAO Zeqiang(Department of Ferrous Metallurgy; Northeastern University; Shenyang 110006); Singh S D(National Metallurgical Laboratory; Jamshedpur; India 831007)(Manuscript received 1994-04-26)
引用本文:

黄宗泽;肖兴国;肖泽强. CaO-SiO_2-Al_2O_3-FeO熔渣起泡行为的研究[J]. 金属学报, 1995, 31(19): 289-294.
, , . FOAMING BEHAVIOUR OF CaO-SiO_2-Al_2O_3-FeO SLAGS[J]. Acta Metall Sin, 1995, 31(19): 289-294.

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摘要: 在1500℃下,用X射线透视装置研究了CaO-SiO_2-Al_2O_3-FeO熔渣被石墨还原过程中渣的起泡行为,测定了熔渣的起泡指数和起泡率等参数.结果表明,随熔渣碱度上升,其起泡率增大而起泡指数却下降.同时考察了MgO,CaF_2,Na_2O等添加物对熔渣起泡行为的影响.通过对熔渣起泡指数的因次分析得到,熔渣起泡指数与熔渣粘度,密度,表面张力及重力加速度g有如下关系:
关键词 CaO-SiO_2-Al_2O_3-FeO熔渣起泡指数因次分析炼铁工艺    
Abstract:The foaming behaviour of CaO-SiO_2-Al_2O_3-FeO slag system reduced by graphite at 1500℃ was quantitatively studied with the help of X-ray apparatus. Foaming parameters such as foaming ratio and foaming index were determined. It was found that with increase of the basicity of slags, the foaming ratio increased, however, the foaming index was opposite. In addition, the effects of additives like MgO, Na_2O and CaF_2 on the foaming behaviour were also investigated. The result of dimensional analysis showed that the foaming index(∑) of molten slag was determined by where μ is the viscosity of the slag,σis the surface tension, ρis the density of the slag and g is the acceleration of gravity. (Correspondent: HUANG Zongze, Department of Ferrous Metallurgy, Northeastern University, Shenyang110006)
Key words CaO-SiO_2-Al_2O_3-FeO slag    foaming index    dimensional analysis    smelting reduction
    
基金资助:国家自然科学基金
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[1] 黄宗泽;肖兴国;肖泽强. 含FeO熔渣的起泡过程及起泡参数间关系分析[J]. 金属学报, 1996, 32(3): 278-283.