120t AOD全铁水冶炼400系不锈钢数学模型的应用
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摘要
针对脱磷铁水+AOD+VOD三步法冶炼400系不锈钢冶炼过程,通过分析AOD炉脱碳保铬化学反应中碳、铬、温度三者之间的平衡关系,并综合考虑体系的质量和热量衡算及精炼过程的不等温状态,开发了基于Visual Basic.Net程序的AOD全铁水冶炼数学模型,可准确计算出入炉料和发热剂的用量,并分析冶炼过程的热量收支情况和影响过程热量的关键因素。与实际生产用料量相比,模型计算值误差均在8%以内,因此可用于指导生产,最终实现钢水高效化冶炼。
Aiming at the process of 400 series stainless steel smelting with dephosphorized hot metal+AOD+VOD three-step process, by analyzing the equilibrium relationship among carbon, chromium and temperature in the chemical reaction of decarbonization and chromium retention in AOD furnace, and thinking the mass and heat balance of the system and the unequal temperature state of refining process, a mathematical model of AOD hot metal smelting based on Visual Basic.Net program is developed, which can be accurately calculate the dosage of furnace charge and heating agent, and analyze the heat budget and key factors affecting the heat during the smelting process. Compared with the actual production consumption, the calculated error of model is less than 8%, so it can be used to guide the production and ultimately realize the high efficiency of molten steel smelting.
Aiming at the process of 400 series stainless steel smelting with dephosphorized hot metal+AOD+VOD three-step process, by analyzing the equilibrium relationship among carbon, chromium and temperature in the chemical reaction of decarbonization and chromium retention in AOD furnace, and thinking the mass and heat balance of the system and the unequal temperature state of refining process, a mathematical model of AOD hot metal smelting based on Visual Basic.Net program is developed, which can be accurately calculate the dosage of furnace charge and heating agent, and analyze the heat budget and key factors affecting the heat during the smelting process. Compared with the actual production consumption, the calculated error of model is less than 8%, so it can be used to guide the production and ultimately realize the high efficiency of molten steel smelting.
引文
[1]黄云,候成,郭成.铁水罐喷吹脱磷在400系不锈钢70 tAOD一步法冶炼工艺中的应用[J].特殊钢,2017,38(3):44～46.
[2]潘光忠,贾育华,王晓英,等.基于回归分析法的400系不锈钢吹氩脱氮工艺研究[J].河北冶金,2013,(7):4～8.
[3]冯文甫,郭键,叶凡新,等.60tAOD兑脱磷铁水一步法冶炼0Cr12Mn15NiCuN不锈钢的工艺实践[J].特殊钢,2017,38(4):35～37.
[4]杜晓建.AOD炉冶炼不锈钢时脱硫的动力学分析[J].山西冶金,2016,(3):41～44.
[5]艾立翔,汪红兵,徐安军,等.AOD炉的高效化冶炼模型[J].钢铁,2012,47(2):22～25.
[6]魏季和,曹英,朱宏利,等.侧顶复吹AOD精炼过程的数学模拟[J].内蒙古科技大学学报,2012,31(2):107～116.
[7]池和冰,李实,魏季和.宝钢不锈钢AOD炉侧吹工艺优化[J].宝钢技术,2014,(1):60～63.
[8]朱宏利.不锈钢侧顶复吹AOD精炼过程的数学和物理模拟[D].上海:上海大学,2006.
[9]冯文甫,贾育华,雷学东,等.镁碳质钢包冶炼0Cr17钢种碳含量稳定控制的研究[J].河北冶金,2014,(9):8～11.
[10]曹英.侧顶复吹条件下不锈钢AOD精炼过程的数学模拟[D].上海:上海大学,2005.
[11]Wei JH,Zhu HL,Chi HB,et al.Physical Modeling Study on Combined Side and Top Blowing AOD Refining Process of Steeless Steel:Gas Stirring and Fluid Flow Characteristics in Bath [J],2010,50(1):17～25.
[12]江庆元,李东刚,池和冰.AOD炉加热及温度制度的研究与实践[J].上海金属,2007,(4):35～37.
[13]胡汉涛,池和冰,黄宗泽,等.AOD全铁水冶炼不锈钢的配料模拟[J].钢铁研究学报,2008,20(10):6～8.
[2]潘光忠,贾育华,王晓英,等.基于回归分析法的400系不锈钢吹氩脱氮工艺研究[J].河北冶金,2013,(7):4～8.
[3]冯文甫,郭键,叶凡新,等.60tAOD兑脱磷铁水一步法冶炼0Cr12Mn15NiCuN不锈钢的工艺实践[J].特殊钢,2017,38(4):35～37.
[4]杜晓建.AOD炉冶炼不锈钢时脱硫的动力学分析[J].山西冶金,2016,(3):41～44.
[5]艾立翔,汪红兵,徐安军,等.AOD炉的高效化冶炼模型[J].钢铁,2012,47(2):22～25.
[6]魏季和,曹英,朱宏利,等.侧顶复吹AOD精炼过程的数学模拟[J].内蒙古科技大学学报,2012,31(2):107～116.
[7]池和冰,李实,魏季和.宝钢不锈钢AOD炉侧吹工艺优化[J].宝钢技术,2014,(1):60～63.
[8]朱宏利.不锈钢侧顶复吹AOD精炼过程的数学和物理模拟[D].上海:上海大学,2006.
[9]冯文甫,贾育华,雷学东,等.镁碳质钢包冶炼0Cr17钢种碳含量稳定控制的研究[J].河北冶金,2014,(9):8～11.
[10]曹英.侧顶复吹条件下不锈钢AOD精炼过程的数学模拟[D].上海:上海大学,2005.
[11]Wei JH,Zhu HL,Chi HB,et al.Physical Modeling Study on Combined Side and Top Blowing AOD Refining Process of Steeless Steel:Gas Stirring and Fluid Flow Characteristics in Bath [J],2010,50(1):17～25.
[12]江庆元,李东刚,池和冰.AOD炉加热及温度制度的研究与实践[J].上海金属,2007,(4):35～37.
[13]胡汉涛,池和冰,黄宗泽,等.AOD全铁水冶炼不锈钢的配料模拟[J].钢铁研究学报,2008,20(10):6～8.