LF爐底吹CO<sub>2</sub>氣體對鋼液質量影響及透氣磚侵蝕的研究

董凱; 朱榮; 劉潤藻; 王歡; 周春芳

doi:10.13374/j.issn1001-053x.2014.s1.042

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LF爐底吹CO₂氣體對鋼液質量影響及透氣磚侵蝕的研究

doi: 10.13374/j.issn1001-053x.2014.s1.042

董凱^1, ,,
朱榮²,
劉潤藻²,
王歡²,
周春芳³

1. 北京科技大學機械工程學院, 北京 100083;
2. 北京科技大學冶金與生態工程學院, 北京 100083;
3. 北京中冶設備研究設計總院有限公司, 北京 100029

詳細信息

通訊作者:
董凱,E-mail:dongkaismanker@163.com

中圖分類號: TF769.2
計量
- 文章訪問數: 323
- HTML全文瀏覽量: 130
- PDF下載量: 16
- 被引次數: 0
出版歷程
- 收稿日期: 2013-11-18
- 網絡出版日期: 2021-07-19

Influence of bottom blowing CO₂ in LF on molten steel quality and erosion of ventilated bricks

1. School of Mechanical Engineering, 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. Beijing Metallurgical Equipment Research & Design Corporation Ltd., China Metallurgical Group Corporation, Beijing 100029, China

摘要

摘要: 為探索LF爐底吹CO₂氣體的冶金行為，將CO₂氣體用于LF爐精煉過程中，對LF爐底吹CO₂氣體工藝進行熱力學分析，并利用75 t LF爐進行底吹不同比例CO₂與Ar混合氣體的實驗．研究發現：底吹CO₂氣體精煉過程中不會造成鋼液大量脫碳，平均每爐碳氧化量在0.3 ～ 0.8 kg，鋼液中夾雜物的種類、形貌和組成變化較小，夾雜物當量密度減小，提高了鋼液潔凈度，底吹CO₂氣體不會加重鋼包透氣磚的侵蝕，實驗表明LF爐可使用CO₂氣體進行精煉．
- LF /
- 二氧化碳 /
- 潔凈度 /
- 侵蝕
Abstract: In order to explore the metallurgical behavior of bottom blowing CO₂ in ladle furnace, CO₂ was used during the LF refining process, some thermodynamics calculation of bottom blowing CO₂ was studied, and some exploratory experiments were conducted with different proportions of CO₂ to Ar during the LF refining process in industry. The results show that it can cause the little oxidation of C in molten steel with the process of bottom blowing CO₂, the average oxidation of C is from 0.3 to 0.8 kg. Compared with bottom blowing Ar, the types and composition of inclusions have less change and the equal yield density of inclusions decreases and the cleanness of steel is improved, it will not aggravate the erosion of ventilated bricks of LF. So it is possible to use CO₂ in LF for refining.
- ladle furnace /
- CO₂ /
- cleanness /
- erosion