无氟环保型KR脱硫剂的研究与应用

doi:10.13228/j.boyuan.issn1005-4006.20220113

Abstract
Figure/Table
References
Related Citation (4)

Download: PDF (1422 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Fluorine-free environmental protection desulfurizer is significance for the protection of environmental and fluorine resources. Through the calculation and analysis of the desulfurization mechanism of molten iron, it is concluded that using Al₂O₃ micro powder instead of fluorite as flux for KR molten iron desulfurization can promote the flux, reduce the oxygen activity of molten iron and increase the reaction temperature.Through melting point and process research, the optimum ratio of fluoride-free desulfurizer is 15∶85.The experimental results showed that adding a certain amount of Al₂O₃ into the desulfurizer is beneficial to accelerate the speed of desulfurization reaction, reduce the melting point of lime, increase the desulfurization rate of desulfurizer, and improve the utilization rate of lime particles. The average consumption of free-fluorine desulfurizer is decreased more than 0.3 kg/t, the average sulfur content was 0.003 1%, and the average desulfurization rate was 86.13%. It can meet the demand of hot metal desulfurization task and realize the complete replacement of fluorine desulfurizer.

Key words： mechanism of hot metal desulfurization alumina micro powder fluorine-free desulfurizer desulfurization rate average sulfur content

Received: 05 July 2022

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	HAN Bao
	DENG Yong
	YANG Li-bin
	WANG Long-xing

Cite this article:

HAN Bao,DENG Yong,YANG Li-bin等. Research and application of fluorine-free environment friendly KR desulfurizer[J]. CONTINUOUS CASTING, 2022, 41(5): 120-124.

URL:

http://www.chinamet.cn/Jweb_lz/EN/10.13228/j.boyuan.issn1005-4006.20220113 OR http://www.chinamet.cn/Jweb_lz/EN/Y2022/V41/I5/120

[1]	刘国平,邓勇,乌力平. 300 t转炉炼钢系统KR铁水预处理生产实践[J]. 炼钢,2014,30(2):1.
[2]	印传磊,田春阳,杨丽梅. KR法铁水预脱硫工艺优化试验研究[J]. 炼钢,2019,35(4):8.
[3]	徐诚澄,王安军,廖利辉. KR法铁水脱硫工艺及一键脱硫技术的应用[J]. 武钢技术,2013,51(2):17.
[4]	戴超,徐熙. 浦钢公司铁水KR脱硫工艺实践[J]. 钢铁,2010,45(12):92.
[5]	邓崎琳,萧忠敏,刘振清. 铁水脱硫预处理技术在武钢的应用[J]. 炼钢,2002,18(1):9.
[6]	韩宝,邓勇,胡淑霞. 马钢300 t KR铁水预处理生产实践[J]. 安徽冶金科技职业学院学报,2011,21(4):5.
[7]	陈俊孚,李海洋,沈武. 高效脱硫法在KR脱硫生产中的应用[J]. 炼钢,2012,28(2):7.
[8]	赵长亮,田志红,陈虎. 首钢京唐KR高效脱硫技术[J]. 中国冶金,2015,25(4):60.
[9]	邹长东,刘飞,许继芳. 脱硫剂粒度对铁水脱硫的影响试验[J]. 钢铁,2013,48(12):30.
[10]	喻同信,马星火,何腾. 降低KR脱硫剂单耗试验[J]. 中国冶金,2017,27(9):35.
[11]	许继芳,李俊峰,苏丽娟. 铁水KR法用石灰基脱硫剂低氟化实验研究[J]. 热加工工艺,2016,45(9):71.
[12]	李德军,王鹏,宋吉锁. 无氟型KR铁水脱硫剂脱硫效果实验分析[J]. 鞍钢技术,2021(6):21.
[13]	董文亮,季晨曦,张宏艳. 铝渣复合脱硫剂在KR铁水脱硫过程中的应用[J]. 钢铁研究学报,2017,29(1):44.
[14]	王舒黎. 钢铁冶金学(中册)[M]. 沈阳:东北工业学院出版社,1992.
[15]	王鸿雁.高硫铝土矿脱硫精矿拜耳法溶出氧化铝试验研究[J].湿法冶金,2019,38(4):263.
[16]	杨健, 李婷婷. 稀土处理的无取向硅钢夹杂物控制研究进展[J]. 钢铁, 2022, 57(7): 1.
[17]	胡心光, 沈峰满, 郑海燕, 等. 温度对CaO-SiO2-Al2O3-MgO高炉渣系Al2O3活度的影响[J]. 钢铁, 2022, 57(4): 25.
[18]	孟华栋, 杨勇, 姚同路. 转炉及KR循环利用钢包热态铸余渣工艺试验[J]. 中国冶金, 2022, 32(7): 107.
[19]	赵博, 乔通, 吴伟, 等. 曲轴钢CaO-CaF2-SiO2-Al2O3四元渣系组分活度的热力学计算[J]. 中国冶金, 2022, 32(5): 49.
[20]	蒋佳君, 李建立, 朱仁林, 等. 冷却速率对KR脱硫渣中硫析出行为的影响[J]. 中国冶金, 2022, 32(3): 112.