| LF精炼炉底吹CO2气体的工业探索性研究 |
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| 引用本文： | 谷云岭,朱荣,吕明,陈列,刘润藻,尚大军.LF精炼炉底吹CO2气体的工业探索性研究[J].钢铁,2013,48(8):34-39. |
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| 作者姓名： | 谷云岭 朱荣 吕明 陈列 刘润藻 尚大军 |
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| 作者单位： | 1. 北京科技大学冶金与生态工程学院， 北京 100083 2. 北京科技大学钢铁冶金新技术国家重点实验室， 北京 100083 3. 西宁特殊钢股份有限公司， 青海 西宁 810005 |
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| 基金项目： | CO2-O2混合喷吹炼钢工艺技术及装备 |
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| 摘 要： | 基于LF精炼过程底吹CO2气体搅拌机制的研究，利用75t LF精炼炉进行底吹不同比例CO2与Ar混合气体的探索性工业试验。结果表明：底吹CO2气体使钢液搅拌增强，脱硫率由49.7%提高到65.1%，炉渣平均（FeO）质量分数均小于0.5%，满足精炼过程对炉渣氧化性的要求。钢液中夹杂物的种类、形貌和组成变化较小，夹杂物当量密度减小，钢液洁净度提高，试验表明LF炉可使用CO2气体进行精炼。
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| 关 键 词： | LF 二氧化碳 脱硫 洁净度 |
| 收稿时间： | 2013-01-05 |
Exploratory Research on Bottom Blowing CO2 During the LF Refining Process |
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| GU Yun-ling,ZHU Rong,L Ming,CHEN Lie,LIU Run-zao,SHANG Da-jun.Exploratory Research on Bottom Blowing CO2 During the LF Refining Process[J].Iron & Steel,2013,48(8):34-39. |
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| Authors: | GU Yun-ling ZHU Rong L Ming CHEN Lie LIU Run-zao SHANG Da-jun |
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| Affiliation: | 1. Metallurgical and Ecological Engineering School, University of Science and Technology Beijing, Beijing 100083, China 2. State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China 3. Xining Special Iron and Steel Group Co., Ltd., Xi’ning 810005, Qinghai, China |
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| Abstract: | The stirring mechanism of bottom blowing CO2 was investigated and some exploratory experiments were conducted with different proportion of CO2 during the 75t LF refining process in industry. The results show that bottom blowing CO2 can intensify liquid steel agitation and the desulfurization efficiency increases from 49.7% to 65.1%, the mass fraction of FeO is less than 0.5% in the slag so it can meet oxidizing requirements. Compared with bottom blowing Ar, the equal yield density of inclusions decreases and the cleanness of steel is improved, so it is possible for LF to use CO2. |
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| Keywords: | ladle furnace CO2 desulphurization cleanness |
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