铁钢界面铁水罐多功能化技术中的尾罐效应

doi:10.13228/j.boyuan.issn0449-749x.20200289

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摘要针对钢铁制造流程铁钢界面铁水罐多功能化技术中存在的尾罐问题,首先系统阐述了尾罐现象产生的原因及其度量,随后提出尾罐效应的概念并从统计学角度分析了尾罐效应的数学特征,最后根据首钢京唐钢铁公司铁钢界面生产实绩数据,对铁水罐多功能化技术中的尾罐效应进行实证研究。结果表明,首钢京唐某月尾罐率为29.45%,尾罐效应主要体现在尾罐运行时间的延长、到站铁水温度的降低,以及由此带来的转炉氧气消耗量的增加等方面,铁水罐非尾罐和尾罐的受铁时间和周转时间均值分别相差81和42 min,KR脱硫站进站、脱磷转炉兑铁和脱碳转炉兑铁的铁水温度均值分别相差27、22和24 ℃,脱磷转炉和脱碳转炉的氧气消耗分别相差109和199 m³。

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	韩伟刚
	胡长庆
	沙远洋

关键词 ：铁钢界面, 界面技术, 铁水罐多功能化, 尾罐, 脱碳

Abstract：In view of the tailing ladle problem of hot metal ladle multi-functionalization technology in the ironmaking-steelmaking interface,the cause and measurement of tail ladle phenomenon were systematically expounded,and then the concept of tailing tank effect was put forward,and the mathematical characteristics of tailing tank effect were analyzed from a statistical viewpoint. Finally,an empirical study of the tail ladle effect was carried out,according to the production data of the ironmaking-steelmaking interface in Shougang Jingtang Iron and Steel Co.,Ltd.,where the hot metal ladle multi-functionalization technology was adopted. The results show that the tail ladle ratio was 29.45%,and the tail ladle effect was mainly reflected in the increase of operation time of the hot metal ladle,the temperature drop of the hot metal,and the oxygen consumption of BOF production. The average difference of charging time and the turnover time between tail ladles and non-tail ladles was 81 and 42 min respectively. The average difference of hot metal temperature of KR desulfurization station,dephosphorization converter,and decarbonization converter was 27,22 and 24 ℃ respectively. The difference in oxygen consumption of dephosphorization converter and decarbonization converter was 109 and 199 m³ respectively.

Key words： ironmaking-steelmaking interface interface technology hot metal ladle muti-functionalizaiton tail ladle decarbonization

收稿日期: 2020-06-04

引用本文:

韩伟刚, 胡长庆, 沙远洋. 铁钢界面铁水罐多功能化技术中的尾罐效应[J]. 钢铁, 2021, 56(4): 122-129. HAN Wei-gang, HU Chang-qing, SHA Yuan-yang. Tail ladle effect in hot metal ladle multi-functionalization technology in ironmaking-steelmaking interface[J]. Iron and Steel, 2021, 56(4): 122-129.

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