Optimal allocation of limonite in sintering process

ZHANG Guo-cheng; LUO Guo-ping; CHAI Yi-fan; TIAN Shuo; HAO Shuai; REN Qiang

doi:10.13374/j.issn2095-9389.2020.07.29.001

Volume 44 Issue 1

Jan. 2022

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Article Navigation > Chinese Journal of Engineering > 2022 > 44(1): 39-49

ZHANG Guo-cheng, LUO Guo-ping, CHAI Yi-fan, TIAN Shuo, HAO Shuai, REN Qiang. Optimal allocation of limonite in sintering process[J]. Chinese Journal of Engineering, 2022, 44(1): 39-49. doi: 10.13374/j.issn2095-9389.2020.07.29.001

Citation:

ZHANG Guo-cheng, LUO Guo-ping, CHAI Yi-fan, TIAN Shuo, HAO Shuai, REN Qiang. Optimal allocation of limonite in sintering process[J]. Chinese Journal of Engineering, 2022, 44(1): 39-49. doi: 10.13374/j.issn2095-9389.2020.07.29.001

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Optimal allocation of limonite in sintering process

doi: 10.13374/j.issn2095-9389.2020.07.29.001

1.
School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou 014010, China
2.
Department of Chemistry, Baotou Teachers’ College, Baotou 014030, China

More Information

Corresponding author: ZHANG Guo-cheng, E-mail: 644942242@qq.com; LUO Guo-ping, E-mail: luoguoping3@126.com
Received Date: 2020-07-29
Available Online: 2020-11-14
Publish Date: 2022-01-01

Abstract

Abstract

Improvements in ore blending could be realized by an optimal match of iron ores, sinters, and fuel conditions. To further increase iron grade and reduce the cost of ore blending, in view of the actual raw material and fuel conditions of the 500 m² large-scale sintering machine of S Steel company, the conventional physical and chemical properties of the iron ore powders used and their basic characteristics under high-temperature sintering were studied using sintering cup experiments in this study. The content of the adhesion powder, the theoretical liquid phase formation, and performance with different limonite ratios were simulated and calculated using the FactSage 7.1 software. The microstructures of sinters were also analyzed using a mineral phase microscope. The results show that Australian limonite exhibits coarse particle size, weak mineralization ability, low assimilation temperature, poor bonding phase strength, but strong liquid phase absorption. When the mass fraction of limonite is increased from 45% to 55%, the OD ore mass fraction of the magnetite concentrate is increased to 15% and the mass fraction of the OC ore is reduced to 10%, improving the sinter drum strength and RDI_{+3.15 mm}. When the OD ore ratio of the magnetite concentrate is increased, not only the proportion of adhesion powder is increased, improving the amount and performance of liquid phase formation, but the liquid phase distribution also becomes uniform and overmelting is eliminated. On the other hand, increasing the ratio of the OC ore can improve the particle size composition of the sinter mixture and reduce the amount of liquid phase absorbed by the limonite, thus increasing the strength of the sinter. Therefore, a higher ratio of magnetite concentrate under a high amount of limonite is conducive to stabilizing the sinter quality and improving the overall sinter performance.
- sintering process,
- limonite,
- reasonable allocation,
- theoretical liquid phase,
- mineral phase structure

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References(30)

References

[1]	蔣海冰, 孟巍, 陳朝斌, 等. 北鋼煉鐵廠360 m²燒結機配加褐鐵礦的實踐. 燒結球團, 2010, 35(4):50 Jiang H B, Meng W, Chen C B, et al. Practice of limonite addition for 360 m² sinter machine of Beisteel Iron-Making Plant. Sinter Pelletiz, 2010, 35(4): 50
[2]	沈鐵, 陳偉. 大比例褐鐵礦燒結的試驗研究及應用. 礦冶, 2010, 19(4):75 doi: 10.3969/j.issn.1005-7854.2010.04.020 Shen T, Chen W. Experimental study and application about large proportion brown iron ore sintering. Min Metall, 2010, 19(4): 75 doi: 10.3969/j.issn.1005-7854.2010.04.020
[3]	張元娟, 白皓. 典型褐鐵礦燒結試驗研究. 鋼鐵研究, 2016, 44(2):10 Zhang Y J, Bai H. Experimental research on typical limonite sintering. Res Iron Steel, 2016, 44(2): 10
[4]	裴元東, 趙志星, 馬澤軍, 等. 高比例褐鐵礦燒結機理分析及試驗研究. 燒結球團, 2011, 36(5):1 Pei Y D, Zhao Z X, Ma Z J, et al. Mechanism analysis and experimental research on high ratio limonite sintering. Sinter Pelletiz, 2011, 36(5): 1
[5]	Loo C E. A perspective of goethitic ore sintering fundamentals. ISIJ Int, 2005, 45(4): 436 doi: 10.2355/isijinternational.45.436
[6]	吳洪義, 夏志堅, 陳曉光. 高褐鐵礦的燒結試驗研究及生產實踐. 燒結球團, 2018, 43(4):17 Wu H Y, Xia Z J, Chen X G. Experimental study and production practice of high proportion limonite sintering. Sinter Pelletiz, 2018, 43(4): 17
[7]	黃偉青, 張旭孝, 劉燕霞, 等. 褐鐵礦在燒結中的高效使用技術. 鋼鐵研究學報, 2016, 28(7):13 Huang W Q, Zhang X X, Liu Y X, et al. High effective utilization technology of limonite in sintering. J Iron Steel Res, 2016, 28(7): 13
[8]	金俊, 武軼, 江吉惠. 高比例褐鐵礦燒結技術研究. 鋼鐵, 2009, 44(8):16 Jin J, Wu Y, Jiang J H. Study on sintering technique for high ratio of limonite. Iron Steel, 2009, 44(8): 16
[9]	王躍飛, 吳勝利, 韓宏亮. 高褐鐵礦配比下提高燒結礦產質量指標. 北京科技大學學報, 2010, 32(3):292 Wang Y F, Wu S L, Han H L. Improvement in quality and quantity indices of sinter with high proportion of limonite. J Univ Sci Technol Beijing, 2010, 32(3): 292
[10]	黃柱成, 易凌云, 胡兵, 等. 高配比褐鐵礦的燒結配礦試驗研究. 鋼鐵, 2012, 47(5):9 Huang Z C, Yi L Y, Hu B, et al. Experimental investigation on sintering with high ratio of limonite. Iron Steel, 2012, 47(5): 9
[11]	劉振林, 楊金福, 馮根生, 等. 高配比褐鐵礦的燒結試驗研究. 鋼鐵, 2004, 39(12):9 doi: 10.3321/j.issn:0449-749X.2004.12.003 Liu Z L, Yang J F, Feng G S, et al. Study on sintering test with high ratio of limonite. Iron Steel, 2004, 39(12): 9 doi: 10.3321/j.issn:0449-749X.2004.12.003
[12]	林恩玉. 高配比褐鐵礦燒結工藝優化試驗研究. 燒結球團, 2020, 45(2):15 Lin E Y. Experimental study on sintering process optimization of high ratio limonites. Sinter Pelletiz, 2020, 45(2): 15
[13]	He H S, Lv X F, Wang J F, et al. Characteristics evaluation and high effective utilization of limonite ores in sintering process. Min Metall Explor, 2021, 38(5): 2271
[14]	Liu D H, Liu H, Zhang J L, er al. Basic characteristics of Australian iron ore concentrate and its effects on sinter properties during the high-limonite sintering process. Int J Miner Metall Mater, 2017, 24(9): 991 doi: 10.1007/s12613-017-1487-1
[15]	潘文, 吳鏗, 王文澤, 等. 褐鐵礦的熱分解特性及其對燒結過程的影響. 東北大學學報(自然科學版), 2013, 34(9):1277 doi: 10.3969/j.issn.1005-3026.2013.09.015 Pan W, Wu K, Wang W Z, et al. Thermal decomposition characteristics of limonite and their influences on the sintering process. J Northeast Univ Nat Sci, 2013, 34(9): 1277 doi: 10.3969/j.issn.1005-3026.2013.09.015
[16]	洪益成. 褐鐵礦燒結基礎性能的研究. 鋼鐵研究學報, 2010, 22(9):9 Hong Y C. Study on fundamental properties of limonite in sinter process. J Iron Steel Res, 2010, 22(9): 9
[17]	劉正平, 馬金明, 高瑞芳, 等. 褐鐵礦燒結研究與生產. 鋼鐵, 2005, 40(2):19 doi: 10.3321/j.issn:0449-749X.2005.02.005 Liu Z P, Ma J M, Gao R F, et al. Study and production of limonite sinter. Iron Steel, 2005, 40(2): 19 doi: 10.3321/j.issn:0449-749X.2005.02.005
[18]	范曉慧. 鐵礦燒結優化配礦原理與技術. 北京: 冶金工業出版社, 2013 Fan X H. The Principle and Technology of Optimizing Iron Ore Powder in the Sintering Process. Beijing: Metallurgical Industry Press, 2013
[19]	周昊, 刑裕健, 周明熙, 等. 生物質替代焦粉鐵礦石燒結過程中堿金屬遷移行為. 工程科學學報, 2021, 43(5):377 Zhou H, Xing Y J, Zhou M X, et al. Migration behavior of alkali metals in an iron ore sintering process with the substitution of biomass for coke breeze. Chin J Eng, 2021, 43(5): 377
[20]	李艷茹, 周明順, 翟立委, 等. 褐鐵礦用于燒結的試驗研究. 燒結球團, 2005, 30(1):4 doi: 10.3969/j.issn.1000-8764.2005.01.002 Li Y R, Zhou M S, Zhai L W, et al. Experimental study on limonitic sintering. Sinter Pelletiz, 2005, 30(1): 4 doi: 10.3969/j.issn.1000-8764.2005.01.002
[21]	Debrincat D, Loo C E, Hutchens M F. Effect of iron ore particle assimilation on sinter structure. ISIJ Int, 2004, 44(8): 1308 doi: 10.2355/isijinternational.44.1308
[22]	Zhang F, Zhu D Q, Pan J. Sintering performance of blends containing high proportion of limonite // 8th International Symposium on High-Temperature Metallurgical Processing. Springer, 2017: 615
[23]	謝路奔. 結晶水含量對褐鐵礦燒結性能的影響及分析. 礦冶工程, 2012, 32(6):93 Xie L B. Analysis of influence of crystal water content on limonite sintering properties. Min Metall Eng, 2012, 32(6): 93
[24]	周國凡, 畢學工, 翁德明. 全褐鐵礦燒結的實驗研究. 鋼鐵研究, 2006, 34(1):4 doi: 10.3969/j.issn.1001-1447.2006.01.002 Zhou G F, Bi X G, Weng D M. Laboratory research of sinter with full limonite. Res Iron Steel, 2006, 34(1): 4 doi: 10.3969/j.issn.1001-1447.2006.01.002
[25]	邱家用, 李新兵, 徐楊斌, 等. 永通公司高比例褐鐵礦燒結的生產試驗. 燒結球團, 2010, 35(2):1 Qiu J Y, Li X B, Xu Y B, et al. Production test of high ratio limonite sintering in Yongtong Company. Sinter Pelletiz, 2010, 35(2): 1
[26]	肖志新. 低質鐵礦燒結成礦機理及配料結構研究 [學位論文]. 武漢: 武漢科技大學, 2018 Xiao Z X. Research on the Mineralization Mechanism and Sinter Proportioning with Inferior Iron Ores [Dissertation]. Wuhan: Wuhan University of Science and Technology, 2018
[27]	尚曉宇. 褐鐵礦代替傳統精礦粉的理論與實踐 [學位論文]. 唐山: 華北理工大學, 2019 Shang X Y. Theory and Practice of Limonite Replacing Traditional Concentrate Powder [Dissertation]. Tangshan: North China University of Science and Technology, 2019
[28]	范曉慧, 尹亮, 季志云, 等. 生物質炭強化高質量分數褐鐵礦燒結研究. 中南大學學報(自然科學版), 2015, 46(10):3560 Fan X H, Yin L, Ji Z Y, et al. Effect of biomass fuel on sintering of high mass fraction limonite. J Cent South Univ Sci Technol, 2015, 46(10): 3560
[29]	饒家庭. 不同粒度褐鐵礦對高鈦型燒結礦指標的影響. 燒結球團, 2011, 36(5):15 Rao J T. Effect of different particle size of limonite on high Titanium sinter indexes. Sinter Pelletiz, 2011, 36(5): 15
[30]	楊杰康, 王福才. 高配比不同粒級貴沙褐鐵礦燒結試驗研究. 燒結球團, 2016, 41(1):12 Yang J K, Wang F C. Experimental study on sintering with high proportion of difference size of Guisha Limonite. Sinter Pelletiz, 2016, 41(1): 12