A model for estimating the viscosity of blast furnace slags with optical basicity

被引：35

作者：

Hu, Xiao-jun ^{[1
,2
]}

Ren, Zhong-shan ^{[2
]}

Zhang, Guo-hua ^{[1
,2
]}

Wang, Li-jun ^{[1
,2
]}

Chou, Kuo-chih ^{[1
,2
]}

机构：

[1] Univ Sci & Technol Beijing, State Key Lab Adv Met, Beijing 100083, Peoples R China

[2] Univ Sci & Technol Beijing, Sch Met & Ecol Engn, Beijing 100083, Peoples R China

来源：

INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS | 2012年 / 19卷 / 12期

基金：

中国国家自然科学基金;

关键词：

blast furnace; slags; viscosity; optical basicity; charge compensation; activation energy; ALUMINOSILICATE; SILICATE; MELTS;

D O I：

10.1007/s12613-012-0675-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Viscosity is an important physical property of blast furnace slags and has a great influence on blast furnace operations. Because of time consumption and difficulties encountered during high temperature experimental measurement, viscosity data are also limited, so a reasonable and accurate estimation model is required to provide the data for controlling and optimizing the blast furnace process. In the present study a viscosity model was proposed for blast furnace slags. In the model the activation energy was calculated by the optical basicity corrected for cations required for the charge compensation of AlO (4) (5-) , and the temperature dependence was described by the Weymann-Frenkel equation. The estimated viscosity values of the CaO-Al2O3-SiO2, CaO-Al2O3-SiO2-MgO, and CaO-Al2O3-SiO2-MgO-TiO2 systems fit well with experiment data, with the mean deviation less than 25%.

引用

页码：1088 / 1092

页数：5

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