Sticking behavior caused by sintering in gas fluidisation reduction of haematite
文献类型：期刊论文
| 作者 | Zhong, Y. -W.1,2; Wang, Z.1; Gong, X. -Z.1; Guo, Z. -C.3 |
| 刊名 | IRONMAKING & STEELMAKING
 |
| 出版日期 | 2012 |
| 卷号 | 39期号:1页码:38-44 |
| 关键词 | Fluidised bed reduction Sticking Sintering Nano-/microstructures Cohesive particle Agglomeration |
| ISSN号 | 0301-9233 |
| 通讯作者 | Wang, Z |
| 英文摘要 | The sticking of haematite and iron powder during the fluidisation process was investigated using a visual fluidised bed reactor. The results showed that the amount of iron needed to stick decreased with increasing fluidisation temperature. Owing to no iron whisker formation in the experiments, the sticking phenomenon was discussed in the special case where iron morphology was dense or porous, and much attention should be paid to the effect of sintering of iron-iron contact on sticking, especially, surface nano-/microstructures of fresh iron that caused an increase in particle cohesiveness and sticking tendency. It was assumed that haematite covered with iron transformed into cohesive particles that self-agglomerated above minimum sintering temperature. Owing to the interface reaction induced, the sticking temperature of haematite was always lower than that of iron powder in the same size ranges. On the basis of sintering with surface diffusion mechanism, the tendency of sticking was enhanced by reduction reaction through reinforcing mass transfer on particle surface. Therefore, when iron whiskers were suppressed, sticking phenomenon was viewed as the agglomeration fluidisation among cohesive particles under sintering action. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Metallurgy & Metallurgical Engineering |
| 研究领域[WOS] | Metallurgy & Metallurgical Engineering |
| 关键词[WOS] | IRON-ORE FINES ; BED REDUCTION ; SMELTING REDUCTION ; SULFUR PRESSURE ; HYDROGEN |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000298488800006 |
| 公开日期 | 2013-10-28 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/4329]  |
| 专题 | 过程工程研究所_湿法冶金清洁生产技术国家工程实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China 3.Univ Sci & Technol Beijing, Key Lab Ecol & Recycle Met, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhong, Y. -W.,Wang, Z.,Gong, X. -Z.,et al. Sticking behavior caused by sintering in gas fluidisation reduction of haematite[J]. IRONMAKING & STEELMAKING,2012,39(1):38-44. |
| APA | Zhong, Y. -W.,Wang, Z.,Gong, X. -Z.,&Guo, Z. -C..(2012).Sticking behavior caused by sintering in gas fluidisation reduction of haematite.IRONMAKING & STEELMAKING,39(1),38-44. |
| MLA | Zhong, Y. -W.,et al."Sticking behavior caused by sintering in gas fluidisation reduction of haematite".IRONMAKING & STEELMAKING 39.1(2012):38-44. |
入库方式： OAI收割
来源：过程工程研究所
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