提高冶炼低硅含钛铁水转炉废钢比工艺攻关

doi:10.13228/j.boyuan.issn1005-4006.20200085

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (1874 KB) HTML (0 KB)
Export: BibTeX | EndNote (RIS)

Abstract The scrap ratio is an important economic and technical indicator for converter production, and its value directly affects the iron loss and heat balance of steel smelting in the converter. Increasing the scrap ratio into the furnace is an important technical means to achieve iron saving and steel increase, cost reduction and efficiency increase. However, due to the difficulty of slag formation and dephosphorization of Ti-containing and low-Si molten iron, the scrap ratio into the furnace is not high, which directly affects the production cost of the converter. For this reason, based on the analysis of the characteristics and difficulties of Ti-containing and low-Si molten iron smelting, combined with Shougang Shuicheng Iron and Steel Group Co., Ltd production practice, through the optimization of oxygen lance nozzle and gun position, adding temperature raising agent et al process optimization and technological development,the scrap ratio increased from 7.41% to 13.48% and optimization effect is obvious, which laid a certain foundation for achieve iron saving and steel increase, cost reduction and efficiency increase.

Key words： converter Ti-containing and low-Si hot metal scrap ratio heat balance lance position optimization

Received: 21 July 2020

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	WANG Jie
	HUA Fu-bo
	XIE Xiang
	YANG Long-fei
	WEN An-yi

Cite this article:

WANG Jie,HUA Fu-bo,XIE Xiang等. Tackling on process of increasing scrap ratio of converter in smelting low-Si and Ti-containing hot metal[J]. CONTINUOUS CASTING, 2020, 39(6): 27-33.

URL:

http://www.chinamet.cn/Jweb_lz/EN/10.13228/j.boyuan.issn1005-4006.20200085 OR http://www.chinamet.cn/Jweb_lz/EN/Y2020/V39/I6/27

[1]	马春武,李智,封伟华,等. 废钢价格与废钢比对炼钢经济效益的影响[J]. 中国冶金,2015,25(9): 6.
[2]	蒋国昌,徐匡迪. Klockner的冶炼技术[J]. 上海金属,1990,12(4): 48.
[3]	Boughezal R, Liu X, Petriello F. Phenomenology of the Z-boson plus jet process at NNLO[J]. Physical Review D, 2016, 94(7): 074015.
[4]	Chihara K, Nakashima H. Les procédés SMP et ORP de préaffinage de la fonte de la Nippon Steel Corp[J]. Revue de Métallurgie, 1985, 82(2): 149.
[5]	安君辉,王玉生,赵广勋. 提高废钢比降低转炉铁水消耗[J]. 河北冶金,2009(6): 33.
[6]	佟岩. 转炉高废钢比的研究及实践[J]. 炼钢,2018,34(5): 8.
[7]	张彦恒,周海龙,喻林,等. 钒钛铁水冶炼提升废钢比的探索与实践[J]. 特殊钢,2018,39(5): 21.
[8]	管挺,王耀,刘飞,等. 180 t转炉高废钢比冶炼工艺开发[J]. 特殊钢,2019,40(3): 19.
[9]	文光远,黄家骏. 含钒钛铁水性质的研究[J]. 钢铁,1996,31(2): 6.
[10]	李伟东,何海龙,李冰,等. 鞍钢提高转炉废钢比的生产实践[J]. 鞍钢技术,2019(5): 53.
[11]	刘勇,周小宾,彭世恒,等. 转炉熔池中废钢对混匀影响[J]. 连铸,2019(3): 6.
[12]	ZHENG K, ZHANG Z, LIU L, et al. Investigation of the viscosity and structural properties of CaO-SiO2-TiO2 slags[J]. Metallurgical and Materials Transactions:B, 2014, 45(4): 1389.
[13]	雷家柳. 过共析帘线钢中钛夹杂的析出机理及其控制[D]. 武汉:武汉科技大学, 2016.
[14]	黄希祜. 钢铁冶金原理[M]. 4版.北京:冶金工业出版社,2017.
[15]	王新华. 钢铁冶金学[M]. 北京:高等教育出版社,2005.
[16]	ZHANG Z T, WANG Z J, ZHANG M, et al. Thermophysical properties and structure of CaO-SiO2-MgO-Al2O3-FetO-P2O5 steelmaking slags[C]//2015年第六届国际炼钢科技大会论文. 北京:中国金属学会,2015: 151.
[17]	LI J Y, ZHANG M, GUO M, et al. Enrichment mechanism of phosphate in CaO-SiO-FeO-FeO-PO steelmaking slags[J]. Metallurgical and Materials Transactions:B, 2014, 45(5): 1666.
[18]	吕延春,王新华,秦登平. 转炉炼钢低碱度炉渣的高效脱磷与固磷[J]. 钢铁,2018,53(6): 31.