D0L:10.13374f.issn1001-053x.2011.s1.005 第33卷增刊1 北京科技大学学报 Vol.33 Suppl.1 2011年12月 Journal of University of Science and Technology Beijing Dec.2011 炼钢过程含铁尘泥的基本物性与综合利用 庄昌凌)刘建华)崔衡)刘松涛)Daniele R Attorre2)Jim Hunti2 1)北京科技大学治金工程研究院，北京1000832)哈斯科金属，北京100020 通信作者，E-mail:237229412@163.com 摘要对国内8家具有行业代表性的长、短流程钢铁企业含铁粉尘利用现状进行调研，并采用X射线荧光光谱、化学分析、 激光粒度分析、X射线衍射和扫描电子显微分析等手段对含铁粉尘性状进行了分析.结果表明：炼钢粉尘铁、钙、锌元素含量 较高，不仅可在钢铁生产中回收利用，还可开发为高附加值产品，用于化工、材料等行业：但产自不同工序的粉尘的粒度、比表 面积、水分等物性差异较大：铁主要以磁铁矿、赤铁矿、氧化亚铁、少量金属铁及铁酸钙形式存在，Z以铁酸锌存在.炼钢粉尘 的研发利用必须充分考虑上述诸多因素.目前炼钢粉尘外售比例较大，部分用作烧结配料，少量用于炼钢造渣剂，利用层次较 低，需研究高效利用工艺技术. 关键词炼钢：粉尘；固体废弃物：综合利用 分类号TF09 Basic properties and comprehensive utilization of iron-containing sludge dust in the steelmaking process ZHUANG Chang-ling,LIU Jian-hua,CUl Heng",LIU Song-ao,Daniele R Atorre.Jim Hunt 1)Institute of Metallurgical Engineering,University of Science and Technology Beijing.Beijing 100083.China 2)Harsco Metals Group Ltd.Beijing 100020,China Corresponding author.E-mail:237229412@163.com ABSTRACT The utilization status of iron-containing sludges dusts in eight domestic steel plants including typical EAF short route and BOF long route metallurgical processes was investigated,and the basic properties of iron-containing sludges dusts were studied using X-ray fluorescence spectrometry,chemical analysis,size distribution analysis,X-ray diffraction,scanning electron microscopy and other analytical methods.The results show that the steelmaking sludges dusts have high contents of Fe,Ca,and Zn.They can not only be recycled inside the steel plants,but also can be used to develop high value-added products,which relate to the chemical and materials industry.There are more differences in particle size,specific surface,and moisture for the sludges dusts from different processes.And the iron is present as magnetite,ferrous oxide,hematite,calcium ferrite,and metallic iron,and zinc exists in zinc fer- rite.Such above factors must be taken into consideration when the steelmaking dust is studied and utilized.At present,the proportion of steelmaking dust for sale is large and some is used as the sintering raw material,and a small portion of steelmaking dust is used for the slag forming agent.Considering the low utilization levels,relevant technology should be studied to utilize iron-containing sludge& dust efficiently. KEY WORDS steelmaking:dust;solid wastes:comprehensive utilization 近年来，我国钢铁工业生产规模不断扩大，钢铁 钢铁企业生产过程中产生的粉尘含有丰富的 企业生产过程中所产生的粉尘数量也随之增多， Fe元素，同时还有C、Zn、Pb、K等元素，具有较高 2009年中国粗钢产量达到5.68亿吨，炼钢过程产 的利用价值.由于各流程产生的含铁粉尘性质差异 生大量除尘灰副产品，包括电弧炉除尘灰、炼钢转炉 大，表现在化学成分、相组成、堆密度、粒度和湿度， 尘泥、精炼除尘灰、连铸铁鳞，这些副产品的回收利 这直接影响含铁粉状副产品的储存、运输和利用情 用引起了广泛的重视 况.根据钢铁厂不同生产流程产生含铁粉尘的特 收稿日期：201108-22第 33 卷 增刊 1 2011 年 12 月 北京科技大学学报 Journal of University of Science and Technology Beijing Vol． 33 Suppl． 1 Dec． 2011 炼钢过程含铁尘泥的基本物性与综合利用 庄昌凌1) 刘建华1) 崔 衡1) 刘松涛2) Daniele R Attorre 2) Jim Hunt 2) 1) 北京科技大学冶金工程研究院，北京 100083 2) 哈斯科金属，北京 100020 通信作者，E-mail: 237229412@ 163． com 摘 要 对国内 8 家具有行业代表性的长、短流程钢铁企业含铁粉尘利用现状进行调研，并采用 X 射线荧光光谱、化学分析、 激光粒度分析、X 射线衍射和扫描电子显微分析等手段对含铁粉尘性状进行了分析． 结果表明: 炼钢粉尘铁、钙、锌元素含量 较高，不仅可在钢铁生产中回收利用，还可开发为高附加值产品，用于化工、材料等行业; 但产自不同工序的粉尘的粒度、比表 面积、水分等物性差异较大; 铁主要以磁铁矿、赤铁矿、氧化亚铁、少量金属铁及铁酸钙形式存在，Zn 以铁酸锌存在． 炼钢粉尘 的研发利用必须充分考虑上述诸多因素． 目前炼钢粉尘外售比例较大，部分用作烧结配料，少量用于炼钢造渣剂，利用层次较 低，需研究高效利用工艺技术． 关键词 炼钢; 粉尘; 固体废弃物; 综合利用 分类号 TF09 Basic properties and comprehensive utilization of iron-containing sludge ＆ dust in the steelmaking process ZHUANG Chang-ling1) ，LIU Jian-hua1) ，CUI Heng1) ，LIU Song-tao 2) ，Daniele R Attorre 2) ，Jim Hunt 2) 1) Institute of Metallurgical Engineering，University of Science and Technology Beijing，Beijing 100083，China 2) Harsco Metals Group Ltd． ，Beijing 100020，China Corresponding author，E-mail: 237229412@ 163． com ABSTRACT The utilization status of iron-containing sludges ＆ dusts in eight domestic steel plants including typical EAF short route and BOF long route metallurgical processes was investigated，and the basic properties of iron-containing sludges ＆ dusts were studied using X-ray fluorescence spectrometry，chemical analysis，size distribution analysis，X-ray diffraction，scanning electron microscopy and other analytical methods． The results show that the steelmaking sludges ＆ dusts have high contents of Fe，Ca，and Zn． They can not only be recycled inside the steel plants，but also can be used to develop high value-added products，which relate to the chemical and materials industry． There are more differences in particle size，specific surface，and moisture for the sludges ＆ dusts from different processes． And the iron is present as magnetite，ferrous oxide，hematite，calcium ferrite，and metallic iron，and zinc exists in zinc fer￾rite． Such above factors must be taken into consideration when the steelmaking dust is studied and utilized． At present，the proportion of steelmaking dust for sale is large and some is used as the sintering raw material，and a small portion of steelmaking dust is used for the slag forming agent． Considering the low utilization levels，relevant technology should be studied to utilize iron-containing sludge ＆ dust efficiently． KEY WORDS steelmaking; dust; solid wastes; comprehensive utilization 收稿日期: 2011--08--22 近年来，我国钢铁工业生产规模不断扩大，钢铁 企业生产过程中所产生的粉尘数量也随之增多， 2009 年中国粗钢产量达到 5. 68 亿吨，炼钢过程产 生大量除尘灰副产品，包括电弧炉除尘灰、炼钢转炉 尘泥、精炼除尘灰、连铸铁鳞，这些副产品的回收利 用引起了广泛的重视． 钢铁企业生产过程中产生的粉尘含有丰富的 Fe 元素，同时还有 C、Zn、Pb、K 等元素［1］，具有较高 的利用价值． 由于各流程产生的含铁粉尘性质差异 大，表现在化学成分、相组成、堆密度、粒度和湿度， 这直接影响含铁粉状副产品的储存、运输和利用情 况． 根据钢铁厂不同生产流程产生含铁粉尘的特 DOI:10.13374/j.issn1001-053x.2011.s1.005