<i>w</i>(MgO)对高钛高炉渣黏流特性的影响*

doi:10.11901/1005.3093.2015.687

材料研究学报

2016, Vol. 30

Issue (6): 443-447 DOI: 10.11901/1005.3093.2015.687

研究论文

本期目录 | 过刊浏览

w(MgO)对高钛高炉渣黏流特性的影响*

唐昭辉, 丁学勇, 董越, 刘程宏, 魏国(

)

东北大学冶金学院沈阳 110819

Influence of w(MgO) on Viscous Flow Property of High Ti-containing Blast Furnace Slag

TANG Zhaohui, DING Xueyong, DONG Yue, LIU Chenghong, WEI Guo^**(

)

School of Metallurgy, Northeastern University, Shenyang 110819, China

引用本文:

唐昭辉, 丁学勇, 董越, 刘程宏, 魏国. w(MgO)对高钛高炉渣黏流特性的影响*[J]. 材料研究学报, 2016, 30(6): 443-447.
Zhaohui TANG, Xueyong DING, Yue DONG, Chenghong LIU, Guo WEI. Influence of w(MgO) on Viscous Flow Property of High Ti-containing Blast Furnace Slag[J]. Chinese Journal of Materials Research, 2016, 30(6): 443-447.

全文: PDF(706 KB) HTML

摘要:

针对攀西地区高镁型钒钛磁铁矿用量增加、高炉渣中MgO质量分数逐渐升高的特点, 开展了w(MgO)对含TiC、TiN、Ti(C, N) 等高熔点物质的高钛型高炉渣黏流特性影响的试验研究。结果表明, 对于w(TiO₂)=20%、w(A1₂O₃)=14%、二元碱度R₂为1.0~1.2的高炉渣, w(MgO)由8%增加到12%时, 熔化性温度由1332℃升高到1364℃, 炉渣趋于“短渣”特性; 1450℃以上时, 炉渣黏度低于0.3 Pas, 仍具有良好的流动性, 可满足高炉生产要求。

关键词 ：材料合成与加工工艺, 高钛型高炉渣, w(MgO), 黏度, 熔化性温度

Abstract：

It is well known that the increasing dosage of high Mg-containing V-bearing titanomagnetite, the iron ore was adopted for the iron works at Panxi area of the Southwest China and correspondingly the MgO content (%mass fraction) increased gradually in the blast furnace slag. In view of the above fact, it is meaningful to investigate the influence of MgO content on the viscous flow property of high-Ti blast furnace slag containing high melting point material, such as TiC, TiN, Ti(C, N) etc. Results show that the blast furnace slag containing 20% TiO₂ and 14% A1₂O₃ presents the so call "short slag" characteristic with binary basicity R₂ in a range of 1.0~1.2, of which the melting temperature increases from 1332℃ to 1364℃ with the increasing MgO content from 8% to 12% . At temperatures above 1450℃, the slag viscosity is lower than 0.3 Pas with a good liquidity, which can meet the requirements for the smooth operation of blast furnace.

Key words： synthesizing and processing technics BF slag of high titanium w(MgO) viscosity melting temperature

收稿日期: 2015-11-30

ZTFLH:

TF534.1

基金资助:*国家自然科学基金51174048和中央高校基本科研业务费专项资金N120402011资助项目

作者简介: 本文联系人: 魏国

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表1 高炉现场渣化学成分

表2 炉渣试样成分组成/%

图1 RTW-10型熔体物性综合测定仪示意图

图2 w(MgO)对炉渣η-T的影响

图3 炉渣矿物组成图

图4 w(MgO)对炉渣熔化性温度下黏度的影响

图5 w(MgO)对熔化性温度影响图

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