Research on viscosity of Shougang blast furnace slags and synthetic slags

张殿伟 Zhang, Dian-wei, 赵志星 Zhao, Zhi-xing and 赵宝军 Zhao, Bao-jun (2014) Research on viscosity of Shougang blast furnace slags and synthetic slags. Zhongguo yejin, 24 4: 11-15.

Attached Files (Some files may be inaccessible until you login with your UQ eSpace credentials)
Name Description MIMEType Size Downloads
Author 张殿伟 Zhang, Dian-wei
赵志星 Zhao, Zhi-xing
赵宝军 Zhao, Bao-jun
Title Research on viscosity of Shougang blast furnace slags and synthetic slags
Language of Title eng
Journal name Zhongguo yejin
Translated journal name China Metallurgy
Language of Journal Name chi
eng
ISSN 1006-9356
Publication date 2014-04-15
Year available 2014
Sub-type Article (original research)
Volume 24
Issue 4
Start page 11
End page 15
Total pages 5
Place of publication Beijing, China
Publisher Guojia Yejin Gongyebu
Collection year 2015
Language chi
Formatted abstract
对首钢高炉渣样及相应配制的四组元渣的固相析出温度和黏度进行了对比研究,通过电子探针和旋转法分别检测渣样的固相析出温度和黏度。结果表明,现场高炉渣固相析出温度为1400~1440℃,相应配制的四组元渣的固相析出温度要比现场高炉渣高40~50℃。其中微量组元如S(CaS形式),FeO,MnO和TiO2等的存在有利于降低渣固相析出温度。黏度测试表明,现场高炉渣在1500℃时的黏度范围为0.3~0.4Pa·s,相应配制的四组元渣在1500℃时的黏度比现场渣要高30%左右。通过以上对比,不仅了解了高炉渣中微量组元对高炉渣的整体影响,而且有助于将实验室研究结果应用于现场操作。

The liquidus temperatures and viscosities of the industrial blast furnace slags from Shougang and the corresponding synthetic slags have been measured. Liquidus temperatures of these slags have been determined by high temperature equilibration, quenching and Electron Probe X-ray Microanalysis (EPMA) technique. The viscosities of these slags have been measured using the custom designed rotating bob apparatus which enables control of the gas atmosphere and rapid quenching of the samples after completion of the experiment. The microstructures and phase compositions of the quenched slag samples after the viscosity measurements were determined by EPMA. It was found that the liquidus temperatures of the industrial BF slags are in the range of 1400 to 1440℃. The liquidus temperatures of the synthetic slags are 40~50℃ higher than those of the corresponding industrial slags. Presence of minor components such as sulphur, TiO2, MnO and FeO in the slag all results in decrease of the liquidus temperature. The viscosities of the industrial BF slags are in the range of 0.3 to 0.4Pa·s at 1500℃. The viscosities of the synthetic slags are 30% higher than those of the corresponding industrial slags at 1500℃. The differences of liquidus temperature and viscosity between industrial slags and synthetic slags will be useful indications to apply the results of the synthetic slags to promoting the operation of the blast furnace.
Keyword Ironmaking
Blast furnace slag
Liquidus temperature
Viscosity
Minor components
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
Official 2015 Collection
Official Audit
 
Versions
Version Filter Type
Citation counts: Google Scholar Search Google Scholar
Created: Mon, 17 Mar 2014, 22:26:44 EST by Dr Baojun Zhao on behalf of School of Chemical Engineering