首钢京唐降低转炉终点碳氧积控制技术  

Controlling technology of the end-point carbon-oxygen equilibrium in BOF of Shougang Jingtang

作　　者：边吉明 袁天祥[1] 罗伯钢[1] 张丙龙[1] 田志红[1] 

机构地区：[1]首钢京唐钢铁联合有限责任公司,河北唐山063200

出　　处：《中国冶金》2015年第7期33-36,共4页China Metallurgy

摘　　要：通过热力学分析及统计回归分析的方法,找出了降低转炉碳氧积的显著影响因素,通过试验确定了有效降低转炉终点碳氧积的控制技术。研究结果表明:将转炉出钢温度从1 682℃降到1 676℃,炉底残厚和底吹流量分别控制在600~700mm和800~1 000 m^3/h,且保持稳定的炉型结构,首钢京唐2号转炉实现了将转炉全炉役的终点碳氧积控制在0.0023,达到了国内领先水平;转炉终点碳氧积的降低,实现了每炉钢节省合金铝铁88.5kg,每年可降低成本1 610万元,创下了较大的经济效益。Through the thermo-calculation and static analysis,it has been found the main factors which influence the carbon-oxygen equilibrium in BOF.And the controlling technology ofdecreasing the φC ·φO product were confirmed by experiments.The results show that the methods include lowering the tapping temperature from 1 682 ℃ to 1 676 ℃,maintaining the BOF bottom thickness within 600 -700 mm and bottom stirring eithin 800 -1 000 m3/h. The low φC ·φO product （0.002 3）has been realized on the No.2 BOF of Shougang Jingtang,reaching the domestic leading level.This technology saves Al alloy about 88.5 kg per heat and the cost of 16.1million yuan.

关 键 词：转炉 碳氧积 出钢温度 炉底残厚 

分 类 号：TF713[冶金工程—钢铁冶金]