东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2013, Vol. 34 ›› Issue (6): 836-839.DOI: -

• 材料与冶金 • 上一篇    下一篇

喷吹煤粉中氯元素在高炉风口区域的反应

刘小杰1，吕庆2，姜海宾2，张淑会2   

  1. (1.东北大学材料与冶金学院，辽宁沈阳110819；2.河北联合大学冶金与能源学院，河北省现代冶金技术重点实验室，河北唐山063009)
  • 收稿日期:2012-12-14 修回日期:2012-12-14 出版日期:2013-06-15 发布日期:2013-12-31
  • 通讯作者: 刘小杰
  • 作者简介:刘小杰(1985-)，男，河北唐山人，东北大学博士研究生；吕庆(1954-)，男，河北唐山人，河北联合大学教授，东北大学博士生导师.
  • 基金资助:
    河北省钢铁联合基金资助项目(E2011209022)；国家自然科学基金资助项目(51174074).

Reaction of Chlorine in Pulverized Coal Injection at BF Tuyere Zone

LIU Xiaojie1， LYU Qing2， JIANG Haibin2， ZHANG Shuhui2   

  1. 1. School of Materials & Metallurgy， Northeastern University， Shenyang 110819， China; 2. College of Metallurgy & Energy， Hebei Key Laboratory for Advanced Metallurgy Technology， Hebei United University， Tangshan 063009， China.
  • Received:2012-12-14 Revised:2012-12-14 Online:2013-06-15 Published:2013-12-31
  • Contact: LYU Qing
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摘要： 对煤粉中氯元素在高炉内反应进行了热力学分析，模拟高炉风口环境，研究了喷吹煤粉中的氯元素在风口区的反应和分配规律.结果表明，煤粉中氯在燃烧过程中以HCl形式析出.与常规燃烧过程不同，煤粉中氯元素在风口区的析出率仅为40%~60%，剩余的氯元素残留在未燃煤粉中.喷吹煤粉带入高炉的氯元素不论去向如何，均不利于高炉冶炼过程的顺利进行.建立生产现场煤粉氯含量检测制度，减少高炉煤气中氯元素的危害，提高炉渣的排氯能力是今后努力的方向.

关键词: 喷吹煤粉, 高炉风口, 氯元素, 反应, 热力学分析

Abstract: The reaction thermodynamics analysis of chlorine in coal was carried out in BF， and the distribution and reaction rules of chlorine at the tuyere were researched by simulating the situation of BF tuyere. The results showed that chlorine release as HCl from coal during the combustion. The evolution rate of chlorine in BF tuyere zone is only about 40%~60%， which is different from other common combustion process. The residual chlorine element still remains in the unburned coal powders. Wherever the chlorine of pulverized coal injection into blast furnace to go， they are not conducive to the smooth progress of blast furnace smelting process. Establishing detection system of chloride content on pulverized coal production site， reducing damage by chlorine element blast of furnace gas， improving the ability of the slag ruled out chloride are the future direction.

Key words: pulverized coal injection, BF tuyere, chloride, reaction, thermodynamic analysis

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