超声波处理炼铁系统粉尘团聚研究  

Study on Ultrasonic Treatment of Dust Agglomeration in Ironmaking System

作　　者：梁延峰 解巍 樊莹杰 高兴 胡文贤 柴轶凡[1] Liang Yanfeng;Xie Wei;Fan Yingjie;Gao Xing;Hu Wenxian;Chai Yifan(School of Materials and Metallurgy,Inner Mongolia University of Science and Technology,Inner Mongolia,014010;Manufacturing Department of Inner Mongolia Baogang Steel Union Co.,Ltd.,Inner Mongolia,014010)

机构地区：[1]内蒙古科技大学材料与冶金学院,内蒙古014010 [2]内蒙古包钢钢联股份有限公司制造部,内蒙古014010

出　　处：《当代化工研究》2023年第8期35-37,共3页Modern Chemical Research

基　　金：国家重点研发计划“固废资源化”重点专项项目“白云鄂博稀土矿产资源基地固废循环利用集成示范”(项目编号:2020YFC1909100);内蒙古自治区青年科技英才项目(项目编号:NJYT22060)。

摘　　要：钢铁冶炼过程尤其炼铁工序产生大量粉尘,严重影响生态环境,冶金粉尘循环利用成为行业研究热点。由于含有K、Na、Zn等有价元素,粉尘资源化利用途径愈加广泛。超声波技术应用于粉尘的处理可避免因化学试剂的添加而对水体和环境造成的污染。本文利用超声波技术处理某钢铁公司产生的烧结除尘灰和高炉除尘灰,通过声波的振动来消除粉尘间的团聚,提高粉尘粒度分布分析的准确性,明晰不同粒度区间的有价元素赋存量,实现有价元素的高效富集。结果表明,烧结除尘灰的粒度较大,粉尘处理难度小;高炉除尘灰的力度较小,粉尘处理难度大;通过超声波振动得到,烧结除尘灰中Na、K主要分布在75~150μm粒级,Zn主要分布在40~54.5μm粒级,高炉除尘灰中K、Na、Zn主要分布在2.1~13μm粒级。The iron and steel smelting process,especially the ironmaking process,produces a large amount of dust,which seriously affects the ecological environment.The recycling of metallurgical dust has become a research hotspot in the industry.Due to the valuable elements such as K,Na and Zn,the utilization of dust resources is becoming more and more extensive.In this paper,ultrasonic technology is used to treat sintering dust and blast furnace dusting ash produced by an iron and steel company.The agglomeration between dust is eliminated by the vibration of acoustic wave,the accuracy of dust particle size distribution analysis is improved,the occurrence of valuable elements in different particle size ranges is clarified,and the efficient enrichment of valuable elements is realized.The results show that the particle size of sintering dust is large and the difficulty of dust treatment is small.The intensity of blast furnace dusting ash removal is small,and the dust treatment is difficult.Through ultrasonic vibration,Na and K in sintering dust are mainly distributed in 75~150 μm particle size,Zn is mainly distributed in 40~54.5 μm particle size,and K,Na and Zn in blast furnace dusting ash are mainly distributed in 2.1~13 μm particle size.

关 键 词：除尘灰 超声波处理 粉体团聚 有价元素 富集 

分 类 号：TF09[冶金工程—冶金物理化学]