Effect of MgO/CaO Ratio on Viscosity and Phase Structure of Chromium-containing High-titanium Blast Furnace Slag

被引：0
作者：
Chen, Jiawen [1 ]
Zheng, Weichao [1 ]
Chen, Liangbin [1 ]
Deng, Ying [1 ]
Hao, Jiachang [1 ]
Tian, Zhenyun [1 ]
Qiu, Guibao [1 ,2 ]
机构：
[1] Chongqing Univ, Coll Mat Sci & Engn, 174 Shazheng St, Chongqing 400044, Peoples R China
[2] Chongqing Univ, Chongqing Key Lab Vanadium Titanium Met & New Mat, Chongqing 400044, Peoples R China
来源：
ISIJ INTERNATIONAL | 2024年 / 64卷 / 11期
基金：
中国国家自然科学基金;
关键词：
MgO/CaO ratio; viscosity; slag structure; DEEP LEARNING APPROACH; MOLD BREAKOUT PREDICTION; END-POINT PREDICTION; VISION-BASED METHOD; BP NEURAL-NETWORK; IRONMAKING PROCESS; CLASSIFICATION; DEFECTS; IDENTIFICATION; IRON;
D O I：
10.2355/isijinternational.ISIJINT-2024-148
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The effect of MgO/CaO ratio on the viscosity and free running temperature of chromium-containing high-titanium blast furnace slag (CaO-SiO2-Al2O3-MgO-TiO2-Cr2O3) was investigated by a rotating crucible viscometer. When the ternary basicity with a fixed (CaO+ MgO)/SiO2 ratio of 1.41 and the temperature was fixed, the MgO/CaO ratio had an obvious influence on the viscosity of slags. Increasing MgO/CaO ratio from 0.34 to 0.44 caused a slight decrease in the viscosity of the slag, and had an opposite effect when MgO/CaO ratio was more than 0.44. The XRD measurements showed that the technology of "replacing CaO with MgO" has an effect on the precipitation temperature of perovskite phase and spinel phase. According to the Raman spectroscopy results, with the increase of MgO/CaO ratio from 0.34 to 0.44, the DOP decreased, and then increased as the MgO/CaO ratio increased from 0.44 to 0.56.
引用
收藏
页码：1641 / 1649
页数：124
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