首钢京唐5500m^3高炉出铁过程铁水温降规律  

Temperature drop of hot metal during BF tapping in Shougang Jingtang

作　　者：韩伟刚[1] 郦秀萍[1] 刘建华 张春霞[1] 周继程[1] 石鑫越[1] 

机构地区：[1]钢铁研究总院先进钢铁流程及材料国家重点实验室,北京100081 [2]首钢京唐钢铁联合有限责任公司制造部,河北唐山063200

出　　处：《钢铁》2017年第6期13-17,共5页Iron and Steel

基　　金：国家重点研发计划"化工冶金流程系统优化与节能技术"资助项目(2016YFB0601300)

摘　　要：为了研究大型高炉出铁过程铁水温降规律,对首钢京唐5 500 m^3高炉出铁过程中铁水沟和炉下铁水罐内的铁水温度进行了现场实测。结果表明,高炉铁水沟中铁水温度呈周期性波动,堵口过程中铁水沟残铁温度以0.92℃/min的速率逐渐降低,铁口打开后铁水沟温度需40 min逐渐回升并稳定在1 475℃左右。尾罐是影响铁水罐受铁结束时罐内铁水温度的关键因素,尾罐比普通罐装满铁水时罐内铁水温度低25℃。尾罐装满铁水时罐内铁水温度与第一次受铁量有关,将尾罐放在高炉下次出铁的第二罐受铁有利于提高罐内铁水平均温度。In order to research the temperature drop of hot meatal during BF tapping,temperature of hot metal in casthouse runners and ladles from 5 500 m^3 BF of Shougang Jingtang was tested. The results showed that hot metal temperature in casthouse runners had a periodic fluctuation. The temperature of residual hot metal in runners decreased with a rate of 0.92 ℃/min during tapping hole blocked. After the tapping hole was opened about 40 min were taken for the temperature in runners to rise up to about 1 475 ℃. Ending ladle was critical to affect the temperature of hot metal in ladles.The temperature of hot metal in ending ladles was 25 ℃ lower than that in normal ladles and related to amount of hot metal charged in the first charging period. It was easier to get a higher average temperature if ending ladles were the second ladle to be charged in than be the first.

关 键 词：高炉出铁 铁水沟 铁水罐 尾罐 铁水温度 

分 类 号：TF53[冶金工程—钢铁冶金]