|
|
|
| Exploratory Research on Bottom Blowing CO2 During the LF Refining Process |
| GU Yun-ling1,2,ZHU Rong1,2,L Ming1,2,CHEN Lie3,LIU Run-zao1,SHANG Da-jun3 |
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 |
|
|
|
|
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.
|
|
Received: 05 January 2013
Published: 19 August 2013
|
|
|
|
|
|
| [1] |
刘仁生等．钢铁工业节能减排新技术5000问-炼铁系统分册．北京，中国科学技术出版社，2009：1．
|
| [1] |
刘仁生等．钢铁工业节能减排新技术5000问-炼铁系统分册．北京，中国科学技术出版社，2009：1．
|
| [2] |
柳克勋．关于钢铁企业发展低碳经济的思考．再生资源与循环经济，2010，3（4）：11-15．
|
| [2] |
柳克勋．关于钢铁企业发展低碳经济的思考．再生资源与循环经济，2010，3（4）：11-15．
|
| [3] |
张敬．中国钢铁行业CO2排放影响因素及减排途径研究．大连理工大学硕士学位论文．2008，12月．
|
| [3] |
张敬．中国钢铁行业CO2排放影响因素及减排途径研究．大连理工大学硕士学位论文．2008，12月．
|
| [4] |
宋士超．转炉顶底复合吹炼效果分析．炼钢，1986，1：54-58．
|
| [4] |
宋士超．转炉顶底复合吹炼效果分析．炼钢，1986，1：54-58．
|
| [5] |
郭木星，陈襄武．底吹CO2气体在复吹转炉熔池中的作用机理．钢铁研究学报，1993，5（1）：9-14．
|
| [5] |
郭木星，陈襄武．底吹CO2气体在复吹转炉熔池中的作用机理．钢铁研究学报，1993，5（1）：9-14．
|
| [6] |
野村宏之，森一美．Ar-CO2混合ガスㄧてよる溶鉄の脱炭反応機構．鉄と鋼，1972，12：49-57．
|
| [6] |
野村宏之，森一美．Ar-CO2混合ガスㄧてよる溶鉄の脱炭反応機構．鉄と鋼，1972，12：49-57．
|
| [7] |
野村宏之，森一美，城田良康．Ar-CO-CO2混合ガスㄧてよる溶鉄の脱炭反応．鉄と鋼，1974，3：39-49．
|
| [7] |
野村宏之，森一美，城田良康．Ar-CO-CO2混合ガスㄧてよる溶鉄の脱炭反応．鉄と鋼，1974，3：39-49．
|
| [8] |
R.D.O'Hara．Carbon Dioxide Shrouding and Purging at Ipsco'Melt Shop．I&SM，1986，3：24-28．
|
| [8] |
R.D.O'Hara．Carbon Dioxide Shrouding and Purging at Ipsco'Melt Shop．I&SM，1986，3：24-28．
|
| [9] |
John R. Paules．Ladle Stirring & Stream Shrouding with CO2 at Armco's Midwestern Steel Division．Steelmaking Proceeding，1987，129-132．
|
| [9] |
John R. Paules．Ladle Stirring & Stream Shrouding with CO2 at Armco's Midwestern Steel Division．Steelmaking Proceeding，1987，129-132．
|
| [10] |
T.BRUCE F.WEISANG M.ALLIBERT RFRUEHAN．Effects of CO2 Stirring In A Ladle. ELECTRIC FURNACE PROCEEDINGS．1987.293-297.
|
| [10] |
T.BRUCE F.WEISANG M.ALLIBERT RFRUEHAN．Effects of CO2 Stirring In A Ladle. ELECTRIC FURNACE PROCEEDINGS．1987.293-297.
|
| [11] |
张鉴．炉外精炼的理论与实践．冶金工业出版社，1999，6:233-238．
|
| [11] |
张鉴．炉外精炼的理论与实践．冶金工业出版社，1999，6:233-238．
|
| [12] |
森一美等．インジェクション冶金の動力学． 鉄と鋼，1981，6：672-695．
|
| [12] |
森一美等．インジェクション冶金の動力学． 鉄と鋼，1981，6：672-695．
|
| [13] |
陈建斌．炉外处理．冶金工业出版社，2008，10:155．
|
| [13] |
陈建斌．炉外处理．冶金工业出版社，2008，10:155．
|
| [1] |
Da‑peng Li, Hua‑zhang Wu, Hai‑feng Wang, Hong Li. Growth of solidified shell in bloom continuous casting mold of hypo-peritectic steel based on a FeS tracer method[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2020, 27(7): 782-787. |
| [2] |
YAN Xue-qiang1,2,ZHENG Wan1,2,WANG Guo-wei1,2,YAN Wen1,LI Guang-qiang1,2. Effect of microporous MgO refractories on steel cleanliness[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2020, 32(6): 483-490. |
| [3] |
LI Xiao-yuan,SHI Jie. Ballistic behavior of high strength steel targets during high speed impact of projectile[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2020, 32(5): 429-436. |
| [4] |
Jian-ming Su, Zhi-he Dou, Ting-an Zhang, Yan Liu. Kinetics of hot metal desulfurization by bottom blowing magnesium vapor[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2020, 27(4): 392-401. |
| [5] |
ZHANG Wei-li1,WU Sheng-li1,HU Zhong-jie1,2. Statistical analysis of factors affecting desulfurization rate of activated coke for sintering flue gas[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2020, 32(4): 281-288. |
| [6] |
LIU Peng, SUI Ya-fei, XU Gang-jun, ZHOU Jun-jun, ZENG Quan-wen. Inclusion generation and control of low carbon steel[J]. Iron and Steel, 2020, 55(2): 67-74. |
|
|
|
|
2013, Vol. 48 
