国内超高碱度烧结矿生产实践及发展趋势

doi:10.13228/j.boyuan.issn0449-749x.20210032

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Abstract In order to meet the national call for carbon peak carbon neutralization, iron and steel enterprises have higher and higher requirements for energy saving and emission reduction in production. Due to the huge solid waste emissions in the production process, sintering process is often faced with problems such as insufficient sintering capacity caused by production limit. The world production practice shows that high proportion pellet smelting in blast furnace has the advantages of low fuel ratio and less slag amount. At the same time, it has brought development prospects due to the excellent pellet performance and more environmental-friendly production process. In order to cooperate with the application of a high proportion of pellet charge structure and avoid problems such as insufficient sinter production capacity due to limited production because of environmental protection, many domestic steel companieshave launched ultra-high basicity sinter production explores. Firstly, this article studies the relationship between mineralization mechanism and quality of ultra-high basicity sinter from two aspects of sintering process and mineral composition change, and finds that the basicity of sinter is in the range of 2.10-2.80. With the increase of basicity, the main mineral bonding phase gradually changes to calcium ferrite bonding phase, and the mineral composition gradually becomes stable.When the basicity exceeds 2.80, the vitreous and cracks in the bond phase gradually increase, which seriously affects the quality of sinter. Then this article summarizes the production profile and technical and economic indicators of ultra-high basicity sinter in typical domestic steel enterprises. The sintering process and mineralization mechanism of ultra-high basicity sintered ore were clarified based on the practice and the principles of mineralogy. Finally, the problems in the production of ultra-high basicity sinter in iron and steel enterprises are summarized. Based on sintering process, mineralization mechanism and previous practical experience, the causes of the problems are discussed, and corresponding solutions are proposed.

Key words： ultra-high basicity sinter production practice metallurgical property technical and economic indicators mineralization mechanism

Received: 15 January 2021

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	Articles by authors
	LIU Zheng-jian
	LI Si-da
	ZHANG Jian-liang
	WANG Yao-zu
	WANG Gui-lin
	NIU Le-le

Cite this article:

LIU Zheng-jian,LI Si-da,ZHANG Jian-liang等. Production practice and development trend of iron ore sinter with ultra-high basicity[J]. Iron and Steel, 2022, 57(1): 39-47.

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http://www.chinamet.cn/Jweb_gt/EN/10.13228/j.boyuan.issn0449-749x.20210032 OR http://www.chinamet.cn/Jweb_gt/EN/Y2022/V57/I1/39

[1] 周明顺,韩淑峰,王义栋,等.鞍钢烧结工艺技术自主集成创新与展望[J].鞍钢技术,2016(6):1. (ZHOU Ming-shun, HAN Shu-feng, WANG Yi-dong, et al. Independent integration innovation and prospect of Angang′s sintering technology [J].Angang Technology, 2016 (6): 1.)
[2] 莫龙桂, 甘牧原, 刘华,等. 烧结球团质量优化的措施[J]. 柳钢科技, 2019, 189(4):45. (MO Long-gui, GAN Mu-yuan, LIU Hua, et al.Quality optimization measures for sintered pellets[J].Liugang Science and Technology, 2019,189(4): 45.)
[3] 韩闯闯,李杰,杨爱民,等.烧结矿强度-碱度低凹区及影响因素研究[J].烧结球团,2018,43(2):5. (HAN Chuang-chuang, LI Jie, YANG Ai-min, et al.Study on the strength and low basicity of sintered ore and its influencing factors [J].Sintered Pellet, 2018,43 (2): 5.)
[4] 许满兴,冯根生,祁成林. 论我国高炉炉料结构的未来与高品质球团矿生产[J]. 世界金属导报,2019-12-03(B08). (XU Man-xing,FENG Gen-sheng,QI Cheng-lin. On the future of blast furnace charge structure and high-quality pellet production in China[N]. World Metal Herald, 2019-12-03 (B08).)
[5] 孔令坛. 高炉炉料的合理结构[C]//2001中国钢铁年会论文集(上卷).北京:中国金属学会,2001:189. (KONG Ling-tan. Reasonable structure of blast furnace charge[C]//Proceedings of the 2001 China Iron and Steel Annual Meeting (Vol. 1).Beijing: The Chinese Society for Metal, 2001: 189.)
[6] 邓德君. 合理的高炉炉料结构分析[C]//中国金属学会青年学术年会. 北京:中国金属学会,2002: 30. (DENG De-jun. Analysis of reasonable blast furnace charge structure [C]//Proceedings of the 1 st Youth Academic Conference of Chinese Metal Society. Beijing: The Chinese Society for Metal, 2002:30.)
[7] 张建良,尉继勇,刘征建,等.中国钢铁工业空气污染物排放现状及趋势[J].钢铁,2021,56(12):1. (ZHANG Jian-liang, YU Ji-yong, LIU Zheng-jian, et al. Current situation and trend of air pollutant emission in Chinese iron and steel industry [J]. Iron and steel,2021,56(12):1.)
[8] JIANG Xin, ZHANG Li, LI Guang-sen, et al. Influence of MgO addition on sinter strength of blast furnace[C]//Proceedings of the 5th International Congress on the Science and Technology of Ironmaking,Beijing:The Chinese Society for Metals,2009:280.
[9] 夏志坚.杭钢超高碱度烧结矿的生产[J].烧结球团,2005,30(5):35. (XIA Zhi-jian. Production of ultra-high basicity sintered ore from Hangzhou Iron and Steel [J]. Sintered Pellet, 2005, 30 (5): 35.)
[10] Nathan A S Webster,Mark I Pownceby,Ian C Madsen,et al. Fundamentals of silico-ferrite of calcium and aluminum (SFCA) and SFCA-I iron ore sinter bonding phase formation: Effects of CaO∶SiO₂ ratio[J]. Metallurgical and Materials Transactions B,2014,45(6): 2097.
[11] Nathan A S Webster, Damien P O′dea, Ben G Ellis, et al. Effects of gibbsite, kaolinite and Al-rich goethite as alumina sources on silico-ferrite of calcium and aluminium (SFCA) and SFCA-I iron ore sinter bonding phase formation[J].ISIJ International,2017,57(1):41.
[12] ZHANG Fang, AN Sheng-li, LUO Guo-ping,et al. Effect of basicity and alumina-silica ratio on formation of silico-ferrite of calcium and aluminum[J]. Journal of Iron and Steel Research, International,2012,19(4): 1.
[13] LONG Hong-ming, WU Xue-jian, CHUN Tie-jun,et al. Assimilation behavior of calcium ferrite and calcium diferrite with sintered Al₂O₃ and MgO[J]. Metallurgical and Materials Transactions B,2016,47(5): 2830.
[14] 韩秀丽,司天航,李鸣铎,等.镁铝对烧结矿中铁酸钙的矿物学特性影响[J].地学前缘,2020,27(5):280.(HAN Xiu-li,SI Tian-hang,LI Ming-duo,et al.The influence of magnesium and aluminum on the mineralogical properties of calcium ferrite in sinter[J].Earth Science Frontiers,2020,27(5):280.)
[15] 杨开陆,王学武.碱度和配碳对烧结矿液相固结影响研究[J].冶金管理,2019(9):53. (YANG Kai-lu, WANG Xue-wu.Effects of alkalinity and carbon blending on liquid phase consolidation of sintered ore[J].Metallurgical Management, 2019 (9): 53.)
[16] 顾亚楠.宣钢超高碱度烧结生产实践[J].河北冶金,2014(2):21. (GU Ya-nan.Ultra-high alkalinity sintering production practice of Xuan Steel[J]. Hebei Metallurgy, 2014 (2): 21.)
[17] 温善学.宣钢炼铁厂提高烧结矿转鼓强度的生产实践[J].科技传播,2013,5(24):192. (WEN Shan-xue.Production practice of increasing the rotary strength of sintering ore in Xuangang Ironmaking Plant[J].Science and Technology Communication, 2013,5 (24): 192.)
[18] 全守军.凌钢烧结优化配矿的基础性研究与实践[J].矿业工程,2019,17(2):35. (QUAN Shou-jun.Basic research and practice of optimizing ore mixing in Ling Steel[J].Mining Engineering, 2019,17 (2): 35.)
[19] 韩淑峰,周明顺,沈峰满,等.优化鞍钢烧结矿碱度及炉料结构的试验研究[J].材料与冶金学报,2013,12(3):163. (HAN Shu-feng, ZHOU Ming-shun, SHEN Feng-man, et al.Experimental research on optimizing alkalinity and charge structure of sintered ore of Anshan Iron and Steel [J].Journal of Materials and Metallurgy, 2013,12 (3): 163.)
[20] 何木光,张义贤,饶家庭,等.攀钢超高碱度烧结生产实践[J].钢铁钒钛,2010,31(2):81. (HE Mu-guang, ZHANG Yi-xian, RAO Jia-ting,et al. Production practice of ultra-high alkalinity sintering in Pangang [J]. Iron and Steel Vanadium and Titanium, 2010,31(2): 81.)
[21] 何木光,林千谷,张义贤,等.超高碱度下高铁低硅烧结制度研究[J].中国冶金,2009,19(12):27.(HE Mu-guang,LIN Qian-gu,ZHANG Yi-xian,et al.Study on the sintering system of high iron and low silicon under ultra-high alkalinity[J].China Metallurgy,2009,19(12):27.)
[22] 王禹键,饶家庭,蒋胜,等. 一种超高碱度钒钛烧结矿及其生产方法: 中国, CN107881329B[P]. 2020-02-04. (WANG Yu-jian, RAO Jia-ting,JIANG Sheng, et al. Ultra-high Basicity Vanadium-titanium Sintered Ore and its Production Method: China, CN107881329A[P]. 2020-02-04.)
[23] 蒋大军,何木光,甘勤,等.超高碱度对烧结矿性能与工艺参数的影响[J].钢铁,2009,44(2):98. (JIANG Da-jun, HE Mu-guang, GAN Qin, et al.Effect of ultra-high alkalinity on properties and process parameters of sintered ore[J]. Iron and Steel, 2009,44(2): 98.)
[24] YANG Song-tao, ZHOU Mi, JIANG Tao,et al. Effect of basicity on sintering behavior of low-titanium vanadium-titanium magnetite[J]. Transactions of Nonferrous Metals Society of China,2015,25(6):2087.
[25] YU Zheng-wei, LI Guang-hui, JIANG Tao,et al. Effect of basicity on titanomagnetite concentrate sintering[J]. ISIJ International,2015,55(4): 907.
[26] Nathan A S Webster,Jack G Churchill,Felipe Tufaile,et al. Fundamentals of silico-ferrite of calcium and aluminium (SFCA) and SFCA-I iron ore sinter bonding phase formation: Effects of titanomagnetite-based ironsand and titanium addition[J]. The Iron and Steel Institute of Japan,2016,56(10): 1715.
[27] ZHOU Mi, YANG Song-tao, JIANG Tao,et al. Influence of basicity on high-chromium vanadium-titanium magnetite sinter properties, productivity and mineralogy[J]. JOM,2015,67(5): 1203.
[28] Nathan A S Webster,Mark I Pownceby,Rachel Pattel,et al. Fundamentals of silico-ferrite of calcium and aluminium (SFCA) iron ore sinter bonding phase formation: Effects of titanium on crystallisation during cooling[J]. ISIJ International,2019,59(6): 1007.
[29] 辛红艳,高艳甲,时国松.碱度对烧结矿软熔性能的影响[J].河北联合大学学报(自然科学版),2012,34(3):1. (XIN Hong-yan, GAO Yan-jia, SHI Guo-song.Effect of alkalinity on the remelting properties of sintered ore[J].Journal of Hebei Union University (Natural Science), 2012,34 (3): 1.)
[30] 韩凤光,李和平,许力贤,等. 基于焦炉煤气强化烧结的富氧喷吹技术研究[C]//第十一届中国钢铁年会论文集.炼铁与原料.北京:中国金属学会,2017:5.(HAN Feng-guang, LI He-ping, XU Li-xian, et al. Research on oxygen enriched injection technology based on coke oven gas enhanced sintering [C]//The 11th China Iron and Steel Annual Meating.Beijing: The Chinese Society of Metals,2017:5.)
[31] 张建良,阚永海,张士军,等. 全活性石灰强化烧结技术在超厚料层中的应用[J].钢铁,2020,55(8):56.(ZHANG Jian-liang, KAN Yong-hai, ZHANG Shi-jun, et al.Application of fully active lime enhanced sintering technology in ultra-thick layer[J]. Iron and Steel,2020,55(8):56.)
[32] Nathan A S Webster,Mark I Pownceby,James R Manuel,et al. Fundamentals of silico-ferrite of calcium and aluminum (SFCA) and SFCA-I iron ore sinter bonding phase formation: Effects of MgO on phase formation during heating[J]. JOM,2021,73(1):299.
[33] 易正明,覃佳卓,姜志伟,等. MgO对高碱度高铝烧结矿的影响[J].钢铁,2021,56(2):50.(YI Zheng-ming, QIN Jia-zhuo, JIANG Zhi-wei et al. Effect of MgO on high basicity and high aluminum sinter[J]. Iron and Steel, 2021,56(2):50.)
[34] 王宪珍,王炜,李和平,等. ZnO对烧结矿矿相和结构的影响[J].钢铁,2021,56(7):31.(WANG Xian-zhen, WANG Wei, LI He-ping, et al.Effect of ZnO on mineral phase and structure of sinter[J]. Iron and Steel, 2021,56(7):31.)
[35] 刘征建,牛乐乐,张建良,等. 钢铁企业烧结制粒工艺与设备优化进展及趋势[J].钢铁,2021,56(10):1.(LIU Zheng-jian, NIU Le-le, ZHANG Jian-liang, et al.Progress and trend of sintering granulator process and equipment optimization in iron and steel enterprises[J]. Iron and Steel, 2021,56(10):1.)
[36] 汪清瑶. 基于在线检测烧结矿成分的转鼓强度预测模型研究[D].武汉:武汉科技大学,2017.(WANG Qing-yao. Study on Prediction Model of Rotating Drum Strength Based on Online Detection of Sinter Composition[D]. Wuhan: Wuhan University of Science and Technology,2017.)