热压铁焦对高炉综合炉料熔滴性能的影响

doi:10.12068/j.issn.1005-3026.2016.08.010

东北大学学报:自然科学版 ›› 2016, Vol. 37 ›› Issue (8): 1108-1112.DOI: 10.12068/j.issn.1005-3026.2016.08.010

热压铁焦对高炉综合炉料熔滴性能的影响

王宏涛，储满生，赵伟，柳政根

(东北大学冶金学院，辽宁沈阳110819)

收稿日期:2015-07-22 修回日期:2015-07-22 出版日期:2016-08-15 发布日期:2016-08-12
通讯作者: 王宏涛
作者简介:王宏涛(1990-)，男，安徽霍山人，东北大学博士研究生；储满生(1973-)，男，安徽岳西人，东北大学教授，博士生导师.
基金资助:
国家自然科学基金资助项目(50804008)；中央高校基本科研业务费专项资金资助项目(N110602004).

Effect of Iron Coke Hot Briquette on Softening-Melting and Dripping Properties of Blast Furnace Mixed Burden

WANG Hong-tao， CHU Man-sheng， ZHAO Wei， LIU Zheng-gen

School of Metallurgy， Northeastern University， Shenyang 110819， China.

Received:2015-07-22 Revised:2015-07-22 Online:2016-08-15 Published:2016-08-12
Contact: CHU Man-sheng
About author:-
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摘要/Abstract

摘要： 利用荷重还原软化熔融滴落实验研究了热压铁焦添加量对高炉综合炉料滴落性能的影响.研究结果表明，随着热压铁焦配比的增加，综合炉料软化区间逐渐加宽，从206.3℃增加到218.9℃；熔化区间逐渐收窄，从171.1℃降低到124.8℃，软熔带逐渐变窄且位置下移；综合炉料滴落压差下降，滴落率先升高后降低，在热压铁焦配比为30%时达到较高值40.58%；综合炉料熔滴总特征值逐渐降低，料层透气性改善.一定量的热压铁焦有助于改善综合炉料熔滴性能，其适宜添加量在30%左右.

关键词: 热压铁焦, 熔滴性能, 综合炉料, CO₂减排, 高炉炼铁

Abstract: Through the experiment of softening-melting and dripping of iron ore with load reduction， the effect of iron coke hot briquette (ICHB) on softening-melting and dripping properties of blast furnace mixed burden was investigated. The results show that， with the increase of ICHB adding ratio， the softening temperature range is increased from 206.3℃ to 218.9℃， while the melting temperature range is decreased from 171.1℃ to 124.8℃. The cohesive zone becomes narrower and tends to move downwards. Besides， the dripping pressure drop is decreased. The dripping ratio is increased first and then decreases， the superior value of which is 40.58% when the ICHB ratio is 30%. In addition， S-value is decreased， which indicates that the permeability of mixed burden is improved. Therefore， a certain amount of ICHB is beneficial for improving softening-melting and dripping properties of mixed burden and the appropriate adding ratio of ICHB is about 30%.

Key words: iron coke hot briquette (ICHB), softening-melting and dripping property, mixed burden, CO₂ emission reduction, blast furnace ironmaking

中图分类号:

TF526.2

王宏涛，储满生，赵伟，柳政根. 热压铁焦对高炉综合炉料熔滴性能的影响[J]. 东北大学学报:自然科学版, 2016, 37(8): 1108-1112.

WANG Hong-tao， CHU Man-sheng， ZHAO Wei， LIU Zheng-gen. Effect of Iron Coke Hot Briquette on Softening-Melting and Dripping Properties of Blast Furnace Mixed Burden[J]. Journal of Northeastern University Natural Science, 2016, 37(8): 1108-1112.

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热压铁焦对高炉综合炉料熔滴性能的影响

Effect of Iron Coke Hot Briquette on Softening-Melting and Dripping Properties of Blast Furnace Mixed Burden

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