高炉含铁炉料高温交互作用研究进展  

Research progress on high temperature interaction of blast furnace iron-bearing burden

作　　者：丁智锋 邢相栋[1] 折媛[1,2] 沈正华 李纪萱 李惠子 吕明 DING Zhifeng;XING Xiangdong;SHE Yuan;SHEN Zhenghua;LI Jixuan;LI Huizi;LÜMing(School of Metallurgical Engineering,Xi'an University of Architecture and Technology,Xi'an 710055,Shaanxi,China;Xining Special Steel Co.,Ltd.,Xining 810000,Qinghai,China)

机构地区：[1]西安建筑科技大学冶金工程学院,陕西西安710055 [2]西宁特殊钢股份有限公司,青海西宁810000

出　　处：《中国冶金》2024年第9期1-14,共14页China Metallurgy

基　　金：国家自然科学基金资助项目(52174325);陕西省创新能力支撑计划资助项目(2023-CX-TD-53)。

摘　　要：高炉软熔带是保证煤气流合理分布,实现低碳冶炼的关键性因素之一,其位置和形状主要受到含铁炉料的冶金性能及高温交互作用影响。综述了烧结矿、球团矿以及块矿等不同含铁炉料之间的高温交互作用机理、影响因素以及高温交互作用对炉料软熔性能与渣相形成的影响。指出适当调整炉料化学成分和混匀度、优化炉料结构以及改善炉料的还原条件等均能优化含铁炉料间的交互作用,改善炉料的软熔滴落性能和透气性。未来可加强冷压球团、金属化球团和熔剂型球团等优质球团与其他含铁炉料的交互作用机理研究,加深炉料交互作用过程中物相演变及不同含铁炉料的扩散动力学行为的相关性研究,从而为炉料的软熔性能和透气性优化提供参考。The cohesive zone of blast furnace is one of the key factors to ensure the reasonable distribution of gas flow and low-carbon smelting.Its position and shape are mainly affected by the metallurgical properties of iron-containing burden and the interaction of high temperature.The mechanism and influencing factors of high temperature interaction between different iron-containing burdens such as sinter,pellet and lump ore,and the influence of high temperature interaction on the softening and melting properties of burdens and the formation of slag phase are reviewed.It is pointed out that the interaction between iron-bearing burdens can be optimized by properly adjusting the chemical composition and mixing degree of burdens,optimizing the structure of burdens and improving the reduction conditions of burdens,so as to improve the softening and dripping properties and gas permeability of burdens.In the future,the research on the interaction mechanism of high-quality pellets such as cold-pressed pellets,metallized pellets and fluxed pellets with other iron-containing burdens can be strengthened,and the correlation between the phase evolution and the diffusion kinetic behavior of different iron-containing burdens during the interaction process of burdens can be deepened,so as to provide reference for the optimization of softening performance and permeability of burdens.

关 键 词：高炉 烧结矿 球团矿 块矿 高温交互作用 

分 类 号：TF53[冶金工程—钢铁冶金]