摘要
赤泥是氧化铝冶炼过程中产生的固体废渣,随着赤泥的大量堆积,对环境造成了极大的危害,同时赤泥又具有很高的潜在利用价值。基于此背景,介绍了赤泥的基本性质,对产品还原铁粉的市场进行了简要的分析,重点详细的阐述了赤泥煤基直接还原生产铁粉工艺技术研究现状,其中包括回转窑煤基直接还原技术,转底炉煤基直接还原技术,隧道窑煤基直接还原技术和竖炉煤基直接还原技术。总结了以上技术在赤泥还原生产铁粉领域的优势和不足以及在选择合适的工艺时需要考虑的因素,以期为后续赤泥生产铁粉技术研究提供参考。
Red mud is a solid waste residue produced in the process of alumina smelting.With the accumulation of a large amount of red mud,it has caused great harm to the environment.At the same time,red mud has high potential utilization value.Based on this background,the basic properties of red mud were introduced,the market of product reduced iron powder was briefly analyzed,and the research status of red mud coal-based direct reduction technology for producing iron powder was expounded in detail.These techniques include rotary kiln coal-based direct reduction technology,rotary hearth furnace coal-based direct reduction technology,tunnel kiln coal-based direct reduction technology and shaft furnace coal-based direct reduction technology.The advantages and disadvantages of the above technologies in the field of iron powder production by red mud reduction and the factors that need to be considered when choosing a suitable process are summarized,providing a reference for the subsequent research on red mud production iron powder technology.
作者
徐文珍
李灿华
查雨虹
张龙
于巧娣
汪凯举
XU Wenzhen;LI Canhua;ZHA Yuhong;ZHANG Long;YU Qiaodi;WANG Kaiju(College of Metallurgical Engineering,Anhui University of Technology,Maʹanshan 243002,China;Xu‐ancheng Industrial Technology Research Institute of Anhui University of Technology Co.,Ltd,Xuancheng 242000,China;Xuancheng Economic Development Zone Science and Technology Entrepreneurship Service Center,Xu‐ancheng,242000,China)
出处
《粉末冶金工业》
CAS
北大核心
2022年第4期62-66,共5页
Powder Metallurgy Industry
基金
国家自然科学基金青年基金资助项目(No.51405002)
安徽工业大学校级基金资助项目(RD19200254)。
关键词
赤泥
危害
煤基直接还原
铁粉
red mud
harm
coal-based direct reduction
iron powder
