东北大学学报（自然科学版）

东北大学学报:自然科学版 ›› 2014, Vol. 35 ›› Issue (3): 383-386.DOI: 10.12068/j.issn.1005-3026.2014.03.018

• 材料与冶金 • 上一篇    下一篇

锌在高炉内渣铁中溶解行为计算分析

焦克新1,2，张建良1,2，左海滨1,2，刘征建1,2   

  1. (1北京科技大学 冶金与生态工程学院， 北京100083； 2北京科技大学 钢铁冶金新技术国家重点实验室， 北京100083)
  • 收稿日期:2013-04-22 修回日期:2013-04-22 出版日期:2014-03-15 发布日期:2013-11-22
  • 通讯作者: 焦克新
  • 作者简介:焦克新(1988-)，男，河南信阳人，北京科技大学博士研究生；张建良(1965-)，男，天津人，北京科技大学教授，博士生导师.
  • 基金资助:
    国家重点基础研究发展计划项目(2012CB720400).

Calculation Analysis of Zinc Dissolution Behaviors of the SlagIron in Blast Furnaces

JIAO Kexin1,2， ZHANG Jianliang1,2， ZUO Haibin1,2， LIU Zhengjian1,2   

  1. 1School of Metallurgical and Ecological Engineering， University of Science and Technology Beijing， Beijing 100083， China; 2State Key Laboratory of Advanced Metallurgy， University of Science and Technology Beijing，Beijing 100083， China.
  • Received:2013-04-22 Revised:2013-04-22 Online:2014-03-15 Published:2013-11-22
  • Contact: JIAO Kexin
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摘要： 通过分析锌在高炉下部的行为，结合高炉物料平衡和锌平衡计算，建立锌在高炉内渣铁中溶解行为计算模型.定义高炉炉腹煤气锌含量指数，表征锌在高炉内的循环富集程度.运用某钢厂的实际生产数据进行计算，得出该高炉炉腹煤气锌含量指数为568；高炉炉渣、铁水中的锌均处于饱和状态，炉渣、铁水中的锌含量分别为最终冷态下炉渣、铁水中锌含量的316倍和10倍；同时分析了锌在高炉炉底砖衬的堆积机理和锌对高炉风口的侵蚀机理，提出减缓锌对高炉破坏作用的防治措施.

关键词: 锌, 高炉, 炉腹煤气锌含量指数, 炉缸炉底, 风口, 侵蚀机理

Abstract: Based on the material balance and zinc balance calculation， through the analysis of zinc behaviors in lower part of blast furnace， a calculation model for zinc solution behaviors among the slag and the hot metal was established.Zn index at BF bosh was proposed to represent the degree of circulating enrichment of zinc. The practical data of a steelwork was used for calculation， and the index of the zinc content of the coal gas in bosh of the blast furnace was 568. Zinc was in the saturation state in both slags and hot metals in the furnace， and the content of it was 316 times and 10 times as much as that in the final room temperature condition for the slag and hot metal respectively. The accumulation mechanism in blast furnace bottom brick and the erosion mechanism of zinc on tuyere were also analyzed， offering references for alleviating destructive effects of zinc on the blast furnace.

Key words: zinc, blast furnace, Zn index at BF bosh, hearth, tuyere, erosion mechanism

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