东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2012, Vol. 33 ›› Issue (1): 90-93.DOI: -

• 论著 • 上一篇    下一篇

铁水包顶底喷粉脱硫对比试验研究

周建安;孙中强;战东平;刘春明;   

  1. 东北大学材料与冶金学院;东北大学冶金技术研究所有限公司;
  • 收稿日期:2013-06-19 修回日期:2013-06-19 发布日期:2013-01-17
  • 通讯作者: -
  • 作者简介:-
  • 基金资助:
    国家自然科学基金资助项目(50804009);;

Comparative study of desulphurization with powder injected into hot iron through lance and slot porous plug

Zhou, Jian-An (1); Sun, Zhong-Qiang (2); Zhan, Dong-Ping (1); Liu, Chun-Ming (1)   

  1. (1) School of Materials and Metallurgy, Northeastern University, Shenyang 110819, China; (2) Metallurgical Technology Institute Co. Ltd., Northeastern University, Shenyang 110819, China
  • Received:2013-06-19 Revised:2013-06-19 Published:2013-01-17
  • Contact: Zhou, J.-A.
  • About author:-
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摘要： 通过狭缝式喷粉透气砖底喷吹和常规喷枪顶喷吹两种方式,将电石基粉喷入20 t铁水包中对含镍铁水进行脱硫对比试验.结果表明:在每吨铁脱硫粉剂消耗量为4 kg铁条件下,底喷粉工艺脱硫率为81%~90%,铁水温降为23~36℃;顶喷粉工艺脱硫率为59%~73%,铁水温降为45~70℃.顶、底喷粉处理时间无明显区别,底喷粉处理总时间始终比顶喷粉处理时间短约5 min.底喷吹脱硫工艺具有脱硫效率高、铁水温降小、处理周期短等优点.

关键词: 脱硫, 狭缝式喷粉透气砖, 底喷粉, 铁水预处理, 顶喷粉

Abstract: A comparative experimental study on desulphurization of hot iron with nickel by injecting powder through slot porous plug fixed at the bottom of ladle and a usual overhead injecting technology was carried out in an industrial 20 tones ladle. The results showed that when the consumption of calcium carbide powder is 4 kg/t, the desulphurization ratio of the bottom powder injection is 81%~90%, and the heat loss is 23~36°C; the desulphurization ratio of overhead powder injection is 59%~73% and the heat loss is 45~70°C. Although the difference of injecting time between them can be neglected, the total processing time of bottom injection technology is 5 min shorter than that of top injection technology. Therefore, compared with the other desulphurization technologies, the technology of injecting powder with the bottom position has a number of advantages, such as, the higher desulphurization efficiency, the less heat loss and the short recycle time.

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