Porosity distribution of moving burden layers in the blast furnace throat

Han Wei; Weitian Ding; Ying Li; Hao Nie; Henrik Saxén; Hongming Long; Yaowei Yu

doi:10.1007/s10035-020-01080-4

Porosity distribution of moving burden layers in the blast furnace throat

Han Wei
, Weitian Ding
, Ying Li
, Hao Nie
, Henrik Saxén
, Hongming Long
, Yaowei Yu^*

^*Tämän työn vastaava kirjoittaja

Prosessi- ja systeemitekniikan laboratorio

Tutkimustuotos: Lehtiartikkeli › Artikkeli › Tieteellinen › vertaisarvioitu

21 Sitaatiot (Scopus)

Abstrakti

The porosity distribution of burden layers in the blast furnace (BF) plays an important role for the gas distribution and gas–solid two-phase interaction. In this work, the porosity distribution along the radial and vertical directions of the BF throat was studied by the discrete element method combined with some experimental verification. The simulated radial porosity distribution of coke burden layer shows general agreement with experimental findings, which in practice depends on the charging matrix. When a layer of burden moves from the top to the bottom, its structure will become more compact, so the porosity will decrease. However, the changes occur while 4–5 new layers are built on top of the layer in question, after which the porosity stabilized at an equilibrium point. For the full burden bed, the porosity of coke layers is larger than that of ore layers, but both layers have larger porosity than mixed layer formed by sinter charged on coke, especially when the particle size difference between ore and coke is large. Graphic abstract: [Figure not available: see fulltext.].

Alkuperäiskieli	Englanti
Artikkeli	10
Sivumäärä	12
Julkaisu	Granular Matter
Vuosikerta	23
Numero	1
DOI - pysyväislinkit	https://doi.org/10.1007/s10035-020-01080-4
Tila	Julkaistu - helmik. 2021
OKM-julkaisutyyppi	A1 Julkaistu artikkeli, soviteltu

Rahoitus

We gratefully acknowledge financial support from The Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning (No. TP2015039), National 111 Project (The Program of Introducing Talents of Discipline to University), Grant Award Number: D17002, The Open Project Program of Anhui Province Key Laboratory of Metallurgical Engineering & Resource Recycling (Anhui University of Technology) No: SKF20-01 and Project No: 51974182 supported by NSFC. The discrete element method simulations and analysis were conducted using LIGGGHTS 3.5.0 open source. We gratefully acknowledge financial support from The Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning (No. TP2015039), National 111 Project (The Program of Introducing Talents of Discipline to University), Grant Award Number: D17002, The Open Project Program of Anhui Province Key Laboratory of Metallurgical Engineering & Resource Recycling (Anhui University of Technology) No: SKF20-01 and Project No: 51974182 supported by NSFC. The discrete element method simulations and analysis were conducted using LIGGGHTS 3.5.0 open source.

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@article{748c49e6f0554e5ab3d3b7ae71c8caf8,

title = "Porosity distribution of moving burden layers in the blast furnace throat",

abstract = "The porosity distribution of burden layers in the blast furnace (BF) plays an important role for the gas distribution and gas–solid two-phase interaction. In this work, the porosity distribution along the radial and vertical directions of the BF throat was studied by the discrete element method combined with some experimental verification. The simulated radial porosity distribution of coke burden layer shows general agreement with experimental findings, which in practice depends on the charging matrix. When a layer of burden moves from the top to the bottom, its structure will become more compact, so the porosity will decrease. However, the changes occur while 4–5 new layers are built on top of the layer in question, after which the porosity stabilized at an equilibrium point. For the full burden bed, the porosity of coke layers is larger than that of ore layers, but both layers have larger porosity than mixed layer formed by sinter charged on coke, especially when the particle size difference between ore and coke is large. Graphic abstract: [Figure not available: see fulltext.].",

keywords = "Blast furnace, Charging process, Discrete element method (DEM), Moving bed, Porosity distribution",

author = "Han Wei and Weitian Ding and Ying Li and Hao Nie and Henrik Sax{\'e}n and Hongming Long and Yaowei Yu",

note = "Funding Information: We gratefully acknowledge financial support from The Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning (No. TP2015039), National 111 Project (The Program of Introducing Talents of Discipline to University), Grant Award Number: D17002, The Open Project Program of Anhui Province Key Laboratory of Metallurgical Engineering \& Resource Recycling (Anhui University of Technology) No: SKF20-01 and Project No: 51974182 supported by NSFC. The discrete element method simulations and analysis were conducted using LIGGGHTS 3.5.0 open source. Funding Information: We gratefully acknowledge financial support from The Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning (No. TP2015039), National 111 Project (The Program of Introducing Talents of Discipline to University), Grant Award Number: D17002, The Open Project Program of Anhui Province Key Laboratory of Metallurgical Engineering \& Resource Recycling (Anhui University of Technology) No: SKF20-01 and Project No: 51974182 supported by NSFC. The discrete element method simulations and analysis were conducted using LIGGGHTS 3.5.0 open source. Publisher Copyright: {\textcopyright} 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature.",

year = "2021",

month = feb,

doi = "10.1007/s10035-020-01080-4",

language = "English",

volume = "23",

journal = "Granular Matter",

issn = "1434-5021",

publisher = "Springer",

number = "1",

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TY - JOUR

T1 - Porosity distribution of moving burden layers in the blast furnace throat

AU - Wei, Han

AU - Ding, Weitian

AU - Li, Ying

AU - Nie, Hao

AU - Saxén, Henrik

AU - Long, Hongming

AU - Yu, Yaowei

N1 - Funding Information: We gratefully acknowledge financial support from The Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning (No. TP2015039), National 111 Project (The Program of Introducing Talents of Discipline to University), Grant Award Number: D17002, The Open Project Program of Anhui Province Key Laboratory of Metallurgical Engineering & Resource Recycling (Anhui University of Technology) No: SKF20-01 and Project No: 51974182 supported by NSFC. The discrete element method simulations and analysis were conducted using LIGGGHTS 3.5.0 open source. Funding Information: We gratefully acknowledge financial support from The Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning (No. TP2015039), National 111 Project (The Program of Introducing Talents of Discipline to University), Grant Award Number: D17002, The Open Project Program of Anhui Province Key Laboratory of Metallurgical Engineering & Resource Recycling (Anhui University of Technology) No: SKF20-01 and Project No: 51974182 supported by NSFC. The discrete element method simulations and analysis were conducted using LIGGGHTS 3.5.0 open source. Publisher Copyright: © 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature.

PY - 2021/2

Y1 - 2021/2

N2 - The porosity distribution of burden layers in the blast furnace (BF) plays an important role for the gas distribution and gas–solid two-phase interaction. In this work, the porosity distribution along the radial and vertical directions of the BF throat was studied by the discrete element method combined with some experimental verification. The simulated radial porosity distribution of coke burden layer shows general agreement with experimental findings, which in practice depends on the charging matrix. When a layer of burden moves from the top to the bottom, its structure will become more compact, so the porosity will decrease. However, the changes occur while 4–5 new layers are built on top of the layer in question, after which the porosity stabilized at an equilibrium point. For the full burden bed, the porosity of coke layers is larger than that of ore layers, but both layers have larger porosity than mixed layer formed by sinter charged on coke, especially when the particle size difference between ore and coke is large. Graphic abstract: [Figure not available: see fulltext.].

AB - The porosity distribution of burden layers in the blast furnace (BF) plays an important role for the gas distribution and gas–solid two-phase interaction. In this work, the porosity distribution along the radial and vertical directions of the BF throat was studied by the discrete element method combined with some experimental verification. The simulated radial porosity distribution of coke burden layer shows general agreement with experimental findings, which in practice depends on the charging matrix. When a layer of burden moves from the top to the bottom, its structure will become more compact, so the porosity will decrease. However, the changes occur while 4–5 new layers are built on top of the layer in question, after which the porosity stabilized at an equilibrium point. For the full burden bed, the porosity of coke layers is larger than that of ore layers, but both layers have larger porosity than mixed layer formed by sinter charged on coke, especially when the particle size difference between ore and coke is large. Graphic abstract: [Figure not available: see fulltext.].

KW - Blast furnace

KW - Charging process

KW - Discrete element method (DEM)

KW - Moving bed

KW - Porosity distribution

UR - https://www.scopus.com/pages/publications/85099343721

U2 - 10.1007/s10035-020-01080-4

DO - 10.1007/s10035-020-01080-4

M3 - Article

AN - SCOPUS:85099343721

SN - 1434-5021

VL - 23

JO - Granular Matter

JF - Granular Matter

IS - 1

M1 - 10

ER -

Porosity distribution of moving burden layers in the blast furnace throat

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