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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 thermodynamic analysis and statistical regression analysis, significant influencing factors for reducing the carbon and oxygen product of the converter were found out, and the control technology to effectively reduce the carbon and oxygen output of the converter was determined through experiments. The results show that the furnace tapping temperature is reduced from 1 682 ° C to 1 676 ° C, and the bottom and bottom blow-out flows are controlled at 600-700mm and 800-1000m 3 / h, respectively, Structure, Shougang Jingtang No. 2 converter to achieve the end of the converter furnace carbon content is controlled at 0.0023, reaching the leading domestic level; converter end carbon and oxygen reduction, to achieve each furnace steel and save 88.5kg of aluminum and iron, Each year can reduce the cost of 16.1 million yuan, setting a greater economic benefits.