電鋁熱法冶煉釩鐵渣熔化性能

宋明明; 宋波; 曹敏; 辛文彬; 孫桂林; 毛璟紅

doi:10.13374/j.issn2095-9389.2015.04.006

電鋁熱法冶煉釩鐵渣熔化性能

doi: 10.13374/j.issn2095-9389.2015.04.006

宋明明^1,2,
宋波^1,2, ,,
曹敏³,
辛文彬^1,2,
孫桂林^1,2,
毛璟紅⁴

1. 北京科技大學鋼鐵冶金新技術國家重點實驗室, 北京 100083;
2. 北京科技大學冶金與生態工程學院, 北京 100083;
3. 攀枝花鋼鐵研究院, 成都 610000;
4. 北京科技大學材料科學與工程學院, 北京 100083

基金項目:

國家自然科學基金資金資助項目(51234001)

詳細信息

通訊作者:
宋波,E-mail:songbo@metall.ustb.edu.cn

中圖分類號: TF61
計量
- 文章訪問數: 327
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- PDF下載量: 8
- 被引次數: 0
出版歷程
- 收稿日期: 2013-11-22
- 網絡出版日期: 2021-07-10

Melting property of a slag for FeV alloy production by the electrical thermite method

SONG Ming-ming^1,2,
SONG Bo^{1,2
, ,},
CAO Min³,
XIN Wen-bin^1,2,
SUN Gui-lin^1,2,
MAO Jing-hong⁴

1. State Key Laboratory of Advanced Metallurgy,University of Science and Technology Beijing, Beijing 100083, China;
2. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China;
3. Panzhihua Iron and Steel Research Institute, Chengdu 610000, China;
4. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China

摘要

摘要: 利用Fact Sage熱力學軟件Phase Diagram和Equilib模塊分別計算了CaO含量對CaO-Al₂O₃-22% MgO-1% SiO₂-2% FeO系液相線的影響以及CaO、調渣劑CaF₂和B₂O₃單獨或復合添加對Al₂O₃-MgO-25% CaO-1% SiO₂-2% FeO系1700℃液相量的影響.通過差熱分析測定了現場實驗爐渣的熔化開始溫度和結束溫度,驗證了理論計算變化規律.結果發現:電鋁熱法生產FeV的爐渣中CaO質量分數應該控制在25%左右,此時熔化性能較好;調渣劑CaF₂的調渣效果好于B₂O₃,且Al₂O₃/MgO質量比較高時二者不能復合使用;考慮到工業應用效果和環境保護,CaF₂添加量應控制在2%~5%.
- 鐵合金 /
- 電鋁熱法 /
- 熔化 /
- 熱力學計算 /
- 優化控制
Abstract: The effect of CaO content on the liquidus of a CaO-Al₂O₃-22% MgO-1% SiO₂-2% FeO system and the influence of CaF₂ and B₂O₃ contents on the liquid content of the slag at 1700℃ were calculated using Phase Diagram and Equilib module in thermodynamic software FactSage. The starting and ending melting temperatures of the slag obtained from production were measured by differential thermal analysis. When the CaO content in the slag is controlled at 25% approximately for FeV alloy production by the electrical thermite method, the melting property of the slag is good. The effect of CaF₂ on the melting point depression of the slag is better than that of B₂O₃. Meanwhile, these two fluxes are not suitable to be used together when the mass ratio of Al₂O₃/MgO is high in the slag. Considering industrial application and environmental protection, the best addition of CaF₂ in the slag is 2% to 5%.
- ferroalloys /
- electrical thermite method /
- melting /
- thermodynamic calculations /
- optimal control