Experimental Model Study of Liquid–Liquid and Liquid–Gas Interfaces during Blast Furnace Hearth Drainage
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 a...
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doaj-ac33ecc04fb6473dbf912f944ec2411b2020-11-25T02:44:06ZengMDPI AGMetals2075-47012020-04-011049649610.3390/met10040496Experimental Model Study of Liquid–Liquid and Liquid–Gas Interfaces during Blast Furnace Hearth DrainageWeiqiang Liu0Lei Shao1Henrik Saxén2Process and Systems Engineering Lab., Åbo Akademi University, Åbo 20500, FinlandSchool of Metallurgy, Northeastern University, Shenyang 110819, ChinaProcess and Systems Engineering Lab., Åbo Akademi University, Åbo 20500, FinlandThe 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.https://www.mdpi.com/2075-4701/10/4/496blast furnacehearth drainageiron and slag flowinterface phenomena |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Weiqiang Liu Lei Shao Henrik Saxén |
spellingShingle |
Weiqiang Liu Lei Shao Henrik Saxén Experimental Model Study of Liquid–Liquid and Liquid–Gas Interfaces during Blast Furnace Hearth Drainage Metals blast furnace hearth drainage iron and slag flow interface phenomena |
author_facet |
Weiqiang Liu Lei Shao Henrik Saxén |
author_sort |
Weiqiang Liu |
title |
Experimental Model Study of Liquid–Liquid and Liquid–Gas Interfaces during Blast Furnace Hearth Drainage |
title_short |
Experimental Model Study of Liquid–Liquid and Liquid–Gas Interfaces during Blast Furnace Hearth Drainage |
title_full |
Experimental Model Study of Liquid–Liquid and Liquid–Gas Interfaces during Blast Furnace Hearth Drainage |
title_fullStr |
Experimental Model Study of Liquid–Liquid and Liquid–Gas Interfaces during Blast Furnace Hearth Drainage |
title_full_unstemmed |
Experimental Model Study of Liquid–Liquid and Liquid–Gas Interfaces during Blast Furnace Hearth Drainage |
title_sort |
experimental model study of liquid–liquid and liquid–gas interfaces during blast furnace hearth drainage |
publisher |
MDPI AG |
series |
Metals |
issn |
2075-4701 |
publishDate |
2020-04-01 |
description |
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. |
topic |
blast furnace hearth drainage iron and slag flow interface phenomena |
url |
https://www.mdpi.com/2075-4701/10/4/496 |
work_keys_str_mv |
AT weiqiangliu experimentalmodelstudyofliquidliquidandliquidgasinterfacesduringblastfurnacehearthdrainage AT leishao experimentalmodelstudyofliquidliquidandliquidgasinterfacesduringblastfurnacehearthdrainage AT henriksaxen experimentalmodelstudyofliquidliquidandliquidgasinterfacesduringblastfurnacehearthdrainage |
_version_ |
1724767404961038336 |