冶炼工艺过程钢水增氮控制实践  

Control Practice of Nitrogen Increasing in Molten Steel in Smelting Process

作　　者：仵宇轩 Wu Yuxuan(The Office of Jiuquan Iron and Steel(Group)Corporation,Jiayuguan,Gansu,735100)

机构地区：[1]酒钢集团公司办公室,甘肃嘉峪关735100

出　　处：《酒钢科技》2020年第2期6-9,共4页

摘　　要：本文介绍了酒钢碳钢薄板厂生产设备及工艺,研究了氮在钢水中的溶解度、钢水吸氮的传质速度、电极升温过程中氮的溶解反应、增氮动力学分析,分析了SPHC钢生产过程氮的主要来源,讨论了提出了防止增氮的主要措施。研究表明,通过减少转炉补吹、加强出钢口维护、优化精炼工艺控制、防止二次氧化等措施可以将SPHC钢中的氮含量控制在较低水平。This paper introduces the production equipment and process of the steel sheet plant of JISCO,studies the solubility of nitrogen in the molten steel,the mass transfer speed of nitrogen absorption in the molten steel,the dissolution reaction of nitrogen in the process of electrode heating up,and the dynamics analysis of nitrogen increase,analyzes the main sources of nitrogen in the production process of SPHC Steel,and discusses the main measures to prevent nitrogen increase.The results show that the nitrogen content in SPHC Steel can be controlled at a low level by reducing converter blowing,strengthening tap hole maintenance,optimizing refining process control and preventing secondary oxidation.

关 键 词：SPHC 氮含量 溶解度 传质速度 溶解反应 

分 类 号：TF7[冶金工程—钢铁冶金]