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Article

Experimental Model Study of Liquid–Liquid and Liquid–Gas Interfaces during Blast Furnace Hearth Drainage

1
Process and Systems Engineering Lab., Åbo Akademi University, Åbo 20500, Finland
2
School of Metallurgy, Northeastern University, Shenyang 110819, China
*
Author to whom correspondence should be addressed.
Metals 2020, 10(4), 496; https://doi.org/10.3390/met10040496
Received: 3 March 2020 / Revised: 27 March 2020 / Accepted: 7 April 2020 / Published: 9 April 2020
(This article belongs to the Special Issue Advances in Pyrometallurgy)
The smooth drainage of produced iron and slag is a prerequisite for stable and efficient blast furnace operation. For this it is essential to understand the drainage behavior and the evolution of the liquid levels in the hearth. A two-dimensional Hele–Shaw model was used to study the liquid–liquid and liquid–gas interfaces experimentally and to clarify the effect of the initial amount of iron and slag, slag viscosity, and blast pressure on the drainage behavior. In accordance with the findings of other investigators, the gas breakthrough time increased and residual ratios for both liquids decreased with an increase of the initial levels of iron and slag, a decrease in blast pressure, and an increase in slag viscosity. The conditions under which the slag–iron interface in the end state was at the taphole and not below it were finally studied and reported. View Full-Text
Keywords: blast furnace; hearth drainage; iron and slag flow; interface phenomena blast furnace; hearth drainage; iron and slag flow; interface phenomena
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MDPI and ACS Style

Liu, W.; Shao, L.; Saxén, H. Experimental Model Study of Liquid–Liquid and Liquid–Gas Interfaces during Blast Furnace Hearth Drainage. Metals 2020, 10, 496. https://doi.org/10.3390/met10040496

AMA Style

Liu W, Shao L, Saxén H. Experimental Model Study of Liquid–Liquid and Liquid–Gas Interfaces during Blast Furnace Hearth Drainage. Metals. 2020; 10(4):496. https://doi.org/10.3390/met10040496

Chicago/Turabian Style

Liu, Weiqiang, Lei Shao, and Henrik Saxén. 2020. "Experimental Model Study of Liquid–Liquid and Liquid–Gas Interfaces during Blast Furnace Hearth Drainage" Metals 10, no. 4: 496. https://doi.org/10.3390/met10040496

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