中间包等离子体加热技术研究进展及应用  

Research and Application Progress of Plasma Heating Technology for Continuous Casting Tundish

作　　者：李京社[1] 王存 陈永峰 杨树峰[1] 刘威[1] 白云 黄成永 孙烨[1] Li Jingshe;Wang Cun;Chen Yongfeng;Yang Shufeng;Liu Wei;Bai Yun;Huang Chengyong;Sun Ye(School of Metallurgical and Ecological Engineering,University of Science and Technology Bejing,Beijing 100083,China;Beijing Aobang Advanced Materials Co,Ltd.,Beijing,Beijing 101407,China;Xinxing Ductile Iron Pipes Co.,Ltd.,Handan 056300,China;Jiangyin Xingcheng Special Steel Works Co.,Ltd.,Jiangyin 214400,China;Shanghai Meishan Iron and Steel Co,Ltd.,Nanjing 210039,China)

机构地区：[1]北京科技大学冶金与生态工程学院,北京100083 [2]北京奥邦新材料有限公司,北京101407 [3]新兴铸管股份有限公司,邯郸056300 [4]江阴兴澄特种钢铁有限公司,江阴214400 [5]上海梅山钢铁股份有限公司,南京210039

出　　处：《特殊钢》2024年第1期1-11,共11页Special Steel

基　　金：国家自然科学基金项目(No.52104318,No.52074030)。

摘　　要：在钢铁行业面临转型升级的新常态形势下,借助智能装备驱动钢铁产业向绿色高端化发展,有望实现钢铁生产组织的最优化。连铸中间包实现恒温、低过热度浇铸可有效改善钢材质量,为此发展中间包加热技术十分必要。针对近年来日益受到重视的中间包等离子体加热技术的相关热点问题,系统阐述了其加热原理和设备特点,介绍了等离子体加热技术国内外设备、冶金功能研发以及应用进展状况,重点分析了等离子体加热技术对中间包内钢液流场、温度场、夹杂物去除、钢液化学成分的影响,以及实际应用冶金效果。基于对等离子体加热技术研究和应用的深入认知,探讨了国内自主研发新型中空石墨电极加热过程发现的新问题,以及进一步提高其冶金效果的途径。分析表明,国内自主研发的中空石墨电极等离子体加热装置,更好的适配了国内钢铁行业变革需求,是解决浇铸钢水过热度不稳定、钢水洁净度水平低和钢水组织成分不均匀问题的有效途径,补齐精准定位“一键加热”中间包的智能化短板。In the steel industry is facing the new normal situation of transformation and upgrading,with the help of intelli-gent equipment to drive the steel industry to green and high-end development is expected to achieve the optimization of the steel production organization.Continuous casting tundish with constant temperature and low superheat can effectively im-prove the quality of steel,so it is necessary to develop the heating technology of tundish.Therefore,tundish heating tem-perature control technology has been paid more and more attention.Regarding to the hot issues of tundish plasma heating technology,which has attracted increasing attention in recent years,systematically describes the heating principle and equipment characteristics,introduces the research and development of equipment and metallurgical functions of plasma heating technology at home and abroad,and mainly analyzes the influence of plasma heating technology on the flow field,temperature field,inclusion removal and chemical composition of steel liquefication in tundish,and the metallurgical ef-fect of practical application.Based on the deep understanding of the research and application of plasma heating technol-ogy,the new problems found in the heating process of a new type of hollow graphite electrode plasma equipment indepen-dently developed in China are discussed,and the ways to further improve its metallurgical effect are discussed.Analysis indicates that the domestically developed hollow graphite electrode plasma heating equipment is better suited to meet the transformation needs of China's steel industry.This equipment provides an effective solution to issues such as the instabil-ity of superheat in casting steel,lower cleanliness levels in molten steel,and uneven composition of molten steel.It ad-dresses the shortcomings in the intelligent positioning of the"one-key heating"intermediate package,thus enhancing its precision.

关 键 词：连铸 中间包 等离子体加热 流场 温度场 夹杂物去除 

分 类 号：TF4[冶金工程—钢铁冶金]