烧结料层透气性影响因素及其改善措施解析  

Analysis of influencing factors and improving measures of permeability of sinter layer

作　　者：刘佳文 陈铁军[1,2] 周仙霖 万军营[1,2] 姜翔波 蒋佳颖 LIU Jiawen;CHEN Tiejun;ZHOU Xianlin;WAN Junying;JIANG Xiangbo;JIANG Jiaying(School of Resources and Environmental Engineering,Wuhan University of Science and Technology,Wuhan 43081,Hubei,China;Hubei Key Laboratory of Efficient Utilization and Agglomeration of Metallurgical Mineral Resources,Wuhan 430081,Hubei,China)

机构地区：[1]武汉科技大学资源与环境工程学院,湖北武汉430081 [2]冶金矿产资源高效利用与造块湖北省重点试验室,湖北武汉430081

出　　处：《钢铁研究学报》2024年第7期817-826,共10页Journal of Iron and Steel Research

基　　金：中国宝武低碳冶金创新基金资助项目(BWLCF202107);湖北省重点研发计划资助项目(2022BCA062)。

摘　　要：良好的透气性是实现厚料层烧结乃至超高料层烧结的重要保障,透气性包含烧结料层原始透气性和烧结过程热态透气性,受诸多因素影响。结合褐铁矿型红土镍矿烧结研究,解析了烧结原料特性、配料、混合、制粒、布料和烧结等环节中影响烧结料层原始透气性和热态透气性的因素及其改善措施。总结了国内外在烧结原始透气性和热态透气性方面的研究进展和各种改善透气性技术的特点,归纳了改善烧结透气性、促进烧结均质化和提高烧结产质量的措施,为系统深入理解铁矿烧结全流程及改善烧结透气性、提高烧结矿产质量提供理论基础,实现烧结工序绿色高质量发展。Good air permeability is considered a critical guarantee for achieving sintering with thick layers and even ultra-high layers.Air permeability includes the original air permeability of the sintered layer and the thermal air permeability of the sintering process,which is affected by many factors.Based on the sintering research of limonite laterite nickel ore,factors affecting both the original and thermal air permeability of the sinter material layer across various stages such as raw material characteristics,batching,mixing,granulating,distributing,and sintering were analyzed.Improvement measures were also outlined.Furthermore,the research progress in sintering original air permeability and thermal permeability at domestic and international were summarized.The characteristics of various techniques for improving air permeability were also described in detail.Measures to improve sintering permeability,promote sintering homogenization,and improve sintering production quality are summarized,providing a theoretical basis for a deep understanding of the entire process of iron ore sintering,improving sintering permeability,enhancing the quality of sintered minerals,achieving green and high-quality development of sintering processes,

关 键 词：铁矿烧结 透气性 强化制粒 燃料特性 改善措施 

分 类 号：TF52[冶金工程—钢铁冶金]