Speaker
Prof.
Xin Jiang
(School of Metallurgy, Northeastern University, Shenyang, Liaoning, 110004 China)
Description
Abstract: The unburned pulverized coal in the blast furnace has an effect on the slag properties, which affects the quality of the hot metal. The effect of unburned pulverized coal made from Yongcheng anthracite on slag viscosity is studied by means of high temperature melt physical characteristics synthetic test instrument, and the reason of slag viscosity change was illuminated by observing slag surface topography using scanning electron microscope (SEM). The results show that The change of the concentration of complex anions and suspended solids in molten slag is the main reason for the change of slag viscosity. It has a certain dilution effect on the molten slag when the content of unburned coal powder in the slag is 0.2~0.8%, and the slag viscosity increases remarkably when the content of unburned coal powde above 1%.
Key words:unburned pulverized coal; slag viscosity; complex anions; surface topography
Authors
Dr
Dongwen Xiang
(School of Metallurgy, Northeastern University, Shenyang, Liaoning, 110004 China)
Prof.
Fengman Shen
(School of Metallurgy, Northeastern University, Shenyang, Liaoning, 110004 China)
Co-authors
Mr
Guangen Ding
(School of Metallurgy, Northeastern University, Shenyang, Liaoning, 110004 China)
Prof.
Haiyan Zheng
(School of Metallurgy, Northeastern University, Shenyang, Liaoning, 110004 China)
Dr
Qiangjian Gao
(School of Metallurgy, Northeastern University, Shenyang, Liaoning, 110004 China)
Prof.
Xin Jiang
(School of Metallurgy, Northeastern University, Shenyang, Liaoning, 110004 China)