Experimental Study of Blast Furnace Hearth Drainage Based on Image Analysis

Weiqiang Liu; Lei Shao; Henrik Saxén

doi:10.1002/srin.202100142

Experimental Study of Blast Furnace Hearth Drainage Based on Image Analysis

Weiqiang Liu
, Lei Shao
, Henrik Saxén^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › Scientific › peer-review

6 Citations (Scopus)

111 Downloads (Pure)

Abstract

A smooth hearth drainage is one of the key requirements for maintaining an efficient blast furnace operation. For achieving this, it is necessary to understand the hearth drainage behavior and the effect of related process parameters. To investigate the drainage, a set of experiments is conducted in a 2D Hele−Shaw model, where the influence of the initial accumulated amount of molten liquids (iron and slag), blast pressure, and slag viscosity on the drainage behavior is studied using water and oil as liquids. To quantify the findings, an image analysis-based algorithm is applied to extract drainage information that is used to analyze the effect of the mentioned process factors on the evolution of the liquid levels and volumes, flow rates, share oil in the outflow, and angle of the interfaces at the outlet. Herein, the implications of the results for the operation of the blast furnace hearth are discussed.

Original language	English
Article number	2100142
Journal	Steel Research International
Volume	92
Issue number	10
DOIs	https://doi.org/10.1002/srin.202100142
Publication status	Published - 22 May 2021
MoE publication type	A1 Journal article-refereed

Funding

This work was carried out with support from the Åbo Akademi Foundation, and this funding is gratefully acknowledged. The author (L.S.) wishes to thank the National Natural Science Foundation of China (grant 51604068) for providing financial support for this work. This work was carried out with support from the ?bo Akademi Foundation, and this funding is gratefully acknowledged. The author (L.S.) wishes to thank the National Natural Science Foundation of China (grant 51604068) for providing financial support for this work.

Keywords

blast furnaces
hearth drainage
image analyses
iron and slag flow

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10.1002/srin.202100142Licence: Unknown

Final_manuscript_AboCrisLicence: Unknown

https://urn.fi/URN:NBN:fi-fe2022120168456

Cite this

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title = "Experimental Study of Blast Furnace Hearth Drainage Based on Image Analysis",

abstract = "A smooth hearth drainage is one of the key requirements for maintaining an efficient blast furnace operation. For achieving this, it is necessary to understand the hearth drainage behavior and the effect of related process parameters. To investigate the drainage, a set of experiments is conducted in a 2D Hele−Shaw model, where the influence of the initial accumulated amount of molten liquids (iron and slag), blast pressure, and slag viscosity on the drainage behavior is studied using water and oil as liquids. To quantify the findings, an image analysis-based algorithm is applied to extract drainage information that is used to analyze the effect of the mentioned process factors on the evolution of the liquid levels and volumes, flow rates, share oil in the outflow, and angle of the interfaces at the outlet. Herein, the implications of the results for the operation of the blast furnace hearth are discussed.",

keywords = "blast furnaces, hearth drainage, image analyses, iron and slag flow",

author = "Weiqiang Liu and Lei Shao and Henrik Sax{\'e}n",

note = "Funding Information: This work was carried out with support from the {\AA}bo Akademi Foundation, and this funding is gratefully acknowledged. The author (L.S.) wishes to thank the National Natural Science Foundation of China (grant 51604068) for providing financial support for this work. Funding Information: This work was carried out with support from the ?bo Akademi Foundation, and this funding is gratefully acknowledged. The author (L.S.) wishes to thank the National Natural Science Foundation of China (grant 51604068) for providing financial support for this work. Publisher Copyright: {\textcopyright} 2021 Wiley-VCH GmbH",

year = "2021",

month = may,

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doi = "10.1002/srin.202100142",

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T1 - Experimental Study of Blast Furnace Hearth Drainage Based on Image Analysis

AU - Liu, Weiqiang

AU - Shao, Lei

AU - Saxén, Henrik

N1 - Funding Information: This work was carried out with support from the Åbo Akademi Foundation, and this funding is gratefully acknowledged. The author (L.S.) wishes to thank the National Natural Science Foundation of China (grant 51604068) for providing financial support for this work. Funding Information: This work was carried out with support from the ?bo Akademi Foundation, and this funding is gratefully acknowledged. The author (L.S.) wishes to thank the National Natural Science Foundation of China (grant 51604068) for providing financial support for this work. Publisher Copyright: © 2021 Wiley-VCH GmbH

PY - 2021/5/22

Y1 - 2021/5/22

N2 - A smooth hearth drainage is one of the key requirements for maintaining an efficient blast furnace operation. For achieving this, it is necessary to understand the hearth drainage behavior and the effect of related process parameters. To investigate the drainage, a set of experiments is conducted in a 2D Hele−Shaw model, where the influence of the initial accumulated amount of molten liquids (iron and slag), blast pressure, and slag viscosity on the drainage behavior is studied using water and oil as liquids. To quantify the findings, an image analysis-based algorithm is applied to extract drainage information that is used to analyze the effect of the mentioned process factors on the evolution of the liquid levels and volumes, flow rates, share oil in the outflow, and angle of the interfaces at the outlet. Herein, the implications of the results for the operation of the blast furnace hearth are discussed.

AB - A smooth hearth drainage is one of the key requirements for maintaining an efficient blast furnace operation. For achieving this, it is necessary to understand the hearth drainage behavior and the effect of related process parameters. To investigate the drainage, a set of experiments is conducted in a 2D Hele−Shaw model, where the influence of the initial accumulated amount of molten liquids (iron and slag), blast pressure, and slag viscosity on the drainage behavior is studied using water and oil as liquids. To quantify the findings, an image analysis-based algorithm is applied to extract drainage information that is used to analyze the effect of the mentioned process factors on the evolution of the liquid levels and volumes, flow rates, share oil in the outflow, and angle of the interfaces at the outlet. Herein, the implications of the results for the operation of the blast furnace hearth are discussed.

KW - blast furnaces

KW - hearth drainage

KW - image analyses

KW - iron and slag flow

UR - https://www.scopus.com/pages/publications/85107372266

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DO - 10.1002/srin.202100142

M3 - Article

AN - SCOPUS:85107372266

SN - 1611-3683

VL - 92

JO - Steel Research International

JF - Steel Research International

IS - 10

M1 - 2100142

ER -

Experimental Study of Blast Furnace Hearth Drainage Based on Image Analysis

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Keywords

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