| EAF steelmaking process with increasing hot metal charging ratio and improving slagging regime | |
| Duan, Jian-ping2; Zhang, Yong-liang2; Yang, Xue-min1; Yang, XM | |
| 2009-08-01 | |
| Source Publication | INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
 |
| ISSN | 1674-4799 |
| Volume | 16Issue:4Pages:375-382 |
| Abstract | A new electric arc furnace (EAF) steelmaking process with increasing hot metal charging ratio and improving slagging regime simultaneouly was developed and applied in a 50 t electric arc furnace for more than a year at No. 1 Steelmaking Plant of Shanxi Taigang Stainless Corporation Limited. The essential fact of the new EAF steelmaking process was to charge hot metal in two portions or steps: firstly, 35wt%-40wt% hot metal was pretreated by blowing oxygen in a specially designed reactor for decarburization and improving hot metal temperature and melting premelted slag; secondly, 30wt% hot metal was charged into EAF with high basicity refining slags from ladle furnace (LF)-vacuum degassing furnace (VD) refining process. The results show that the hot metal charging ratio can reach to about 65wt%-70wt% for the new EAF steelmaking process; meanwhile, the tap-to-tap time of a 50 1 EAF can shorten by 5-10 min, the electricity consumption can decrease by 35-50 kW-h/t, the lime consumption can reduce by 10.5 kg/t of molten steel, and the content of harmful heavy metals in molten steel can be easily controlled to less than the upper limits of aimed steel specification or grade compared with the traditional EAF steelmaking process. In addition, the dephosphorization ability shows a slight strengthening, however, a small degree of lessening for desulphurization ability is observed for the new EAF steelmaking process, but the weakness of desulphurization ability cannot become an obstacle to its further application since a stronger desulphurization ability can be achieved during secondary refining of LF coupled with VD after EAF steelmaking process. |
| Keyword | Electric Arc Furnace (Eaf) Charge Ratio Slagging Refining Slags Lime |
| Subtype | Article |
| WOS Headings | Science & Technology ; Technology ; Physical Sciences |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | FURNACE |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing |
| WOS ID | WOS:000269622800003 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Version | 出版稿 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/6620 |
| Collection | 多相复杂系统国家重点实验室 |
| Corresponding Author | Yang, XM |
| Affiliation | 1.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China 2.Shanxi Taigang Stainless Corp Ltd, Ctr Tech, Taiyuan 030003, Shanxi, Peoples R China |
| Recommended Citation GB/T 7714 | Duan, Jian-ping,Zhang, Yong-liang,Yang, Xue-min,et al. EAF steelmaking process with increasing hot metal charging ratio and improving slagging regime[J]. INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,2009,16(4):375-382. |
| APA | Duan, Jian-ping,Zhang, Yong-liang,Yang, Xue-min,&Yang, XM.(2009).EAF steelmaking process with increasing hot metal charging ratio and improving slagging regime.INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,16(4),375-382. |
| MLA | Duan, Jian-ping,et al."EAF steelmaking process with increasing hot metal charging ratio and improving slagging regime".INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS 16.4(2009):375-382. |
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| 20131206-101-复件 1-s2（305KB） | 限制开放 | CC BY-NC-SA | Application Full Text | |||
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