焦炭在碱金属负荷条件下对炉料熔滴性能的影响

doi:10.12068/j.issn.1005-3026.2017.11.010

东北大学学报:自然科学版 ›› 2017, Vol. 38 ›› Issue (11): 1564-1568.DOI: 10.12068/j.issn.1005-3026.2017.11.010

焦炭在碱金属负荷条件下对炉料熔滴性能的影响

陈树军^1,2，刘凯³，吕庆³，王福佳³

(1. 东北大学冶金学院，辽宁沈阳110819; 2. 河钢集团承钢分公司，河北承德067000; 3. 华北理工大学教育部现代冶金技术重点实验室，河北唐山063009)

收稿日期:2016-05-30 修回日期:2016-05-30 出版日期:2017-11-15 发布日期:2017-11-13
通讯作者: 陈树军
作者简介:陈树军(1972-)，男，河北承德人，东北大学博士研究生，河钢集团承德分公司炼铁厂厂长，高级工程师;吕庆(1954-)，男，河北唐山人，华北理工大学教授，博士生导师.
基金资助:
国家自然科学基金资助项目(U1360205).

Effect of Coke Under Alkali Metal Load on the Droplet Performance of Furnace Charge

CHEN Shu-jun^1,2， LIU Kai³， LYU Qing³， WANG Fu-jia³

1. School of Materials， Northeastern University， Shenyang 110819， China; 2. HBIS Group Co.， Ltd.， Chengde Branch， Chengde 067000， China; 3.Key Laboratory for Advanced Metallurgy Technology， Ministry of Education， North China University of Science and Technlogy， Tangshan 063009， China.

Received:2016-05-30 Revised:2016-05-30 Online:2017-11-15 Published:2017-11-13
Contact: LIU Kai
About author:-
Supported by:
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摘要/Abstract

摘要： 通过模拟炼铁高炉内炉料的熔滴过程，研究了焦炭在不同碱金属负荷下对熔滴过程的影响.对不同碱金属负荷与炉料的最大压差Δp_max和熔滴总特性值S的关系进行了分析.研究发现焦炭影响炉料熔滴性能主要是由于碱金属对其熔损反应的催化作用造成的.由扫描电镜观察到熔滴反应后的焦炭形貌可知，随着碱金属负荷的增加，其表面的气孔增多，气孔变大，焦炭表面被侵蚀得越来越严重，最终焦炭强度下降，甚至崩裂，最终影响到炉料的熔滴性能，使Δp_max，S值指标变差.

关键词: 碱金属, 熔滴性能, 焦炭熔损反应, 催化作用

Abstract: By simulating droplet formation and property in blast furnace， the effect of coke under different alkali metal loads on the droplet performance of furnace charge was investigated. The relations between alkali metal load and the maximum pressure difference (Δp_max) and the droplet eigenvalue (S) value were analyzed， respectively. The results indicate that the coke under alkali metal load affects the charge melt drops performance through catalyzing melting reaction of coke. The morphology of cokes after reaction shows that with the increase of alkali metal load， the number of stomatal on the coke surface increases and the size becomes larger， the erosion of coke surface becomes more severe， the strength of the coke decreases even down to zero， eventually the droplet performance of furnace charge can be affected， which make Δp_max and S deteriorate greatly.

Key words: alkali metals, droplet performance;melting reaction of coke, catalysis

中图分类号:

TQ054

陈树军，刘凯，吕庆，王福佳. 焦炭在碱金属负荷条件下对炉料熔滴性能的影响[J]. 东北大学学报:自然科学版, 2017, 38(11): 1564-1568.

CHEN Shu-jun， LIU Kai， LYU Qing， WANG Fu-jia. Effect of Coke Under Alkali Metal Load on the Droplet Performance of Furnace Charge[J]. Journal of Northeastern University Natural Science, 2017, 38(11): 1564-1568.

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焦炭在碱金属负荷条件下对炉料熔滴性能的影响

Effect of Coke Under Alkali Metal Load on the Droplet Performance of Furnace Charge

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