Numerical investigation of burden distribution in a blast furnace

Sida S Liu, Zongyan Zhou, Kejun J Dong, Aibing Yu, David Pinson, John Tsalapatis

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Burden distribution plays an important role in achieving stable and efficient operation in a modern ironmaking blast furnace. In this process, burden materials are charged and distributed to the throat region, and further affect gas distribution and blast furnace performance. In this work, a model based on discrete element method is established. In particular, the surface properties of spherical particles are first justified in terms of angle of repose aiming to reflect the effect of particle shape. The proper values of sliding friction and rolling friction coefficients for different burden materials are then recommended. Burden trajectories from the rotating chute and burden layers formed at the throat region are compared with physical experiments, showing consistent results. The effects of some key variables such as chute angle and friction coefficients are also examined. The results indicate that burden trajectories are not sensitive to sliding and rolling friction coefficients. But those variables should be properly set to obtain reasonable burden layer profiles.
Original languageEnglish
Pages (from-to)651 - 661
Number of pages11
JournalSteel Research International
Volume86
Issue number6
DOIs
Publication statusPublished - 1 Jun 2015

Keywords

  • Blast furnace
  • Bell-less top
  • Burden distribution
  • Discrete element method

Cite this

Liu, Sida S ; Zhou, Zongyan ; Dong, Kejun J ; Yu, Aibing ; Pinson, David ; Tsalapatis, John. / Numerical investigation of burden distribution in a blast furnace. In: Steel Research International. 2015 ; Vol. 86, No. 6. pp. 651 - 661.
@article{e61229a3856f4b28b7b5049980f76067,
title = "Numerical investigation of burden distribution in a blast furnace",
abstract = "Burden distribution plays an important role in achieving stable and efficient operation in a modern ironmaking blast furnace. In this process, burden materials are charged and distributed to the throat region, and further affect gas distribution and blast furnace performance. In this work, a model based on discrete element method is established. In particular, the surface properties of spherical particles are first justified in terms of angle of repose aiming to reflect the effect of particle shape. The proper values of sliding friction and rolling friction coefficients for different burden materials are then recommended. Burden trajectories from the rotating chute and burden layers formed at the throat region are compared with physical experiments, showing consistent results. The effects of some key variables such as chute angle and friction coefficients are also examined. The results indicate that burden trajectories are not sensitive to sliding and rolling friction coefficients. But those variables should be properly set to obtain reasonable burden layer profiles.",
keywords = "Blast furnace, Bell-less top, Burden distribution, Discrete element method",
author = "Liu, {Sida S} and Zongyan Zhou and Dong, {Kejun J} and Aibing Yu and David Pinson and John Tsalapatis",
year = "2015",
month = "6",
day = "1",
doi = "10.1002/srin.201400360",
language = "English",
volume = "86",
pages = "651 -- 661",
journal = "Steel Research International",
issn = "1611-3683",
publisher = "Wiley-VCH Verlag GmbH & Co. KGaA",
number = "6",

}

Numerical investigation of burden distribution in a blast furnace. / Liu, Sida S; Zhou, Zongyan; Dong, Kejun J; Yu, Aibing; Pinson, David; Tsalapatis, John.

In: Steel Research International, Vol. 86, No. 6, 01.06.2015, p. 651 - 661.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Numerical investigation of burden distribution in a blast furnace

AU - Liu, Sida S

AU - Zhou, Zongyan

AU - Dong, Kejun J

AU - Yu, Aibing

AU - Pinson, David

AU - Tsalapatis, John

PY - 2015/6/1

Y1 - 2015/6/1

N2 - Burden distribution plays an important role in achieving stable and efficient operation in a modern ironmaking blast furnace. In this process, burden materials are charged and distributed to the throat region, and further affect gas distribution and blast furnace performance. In this work, a model based on discrete element method is established. In particular, the surface properties of spherical particles are first justified in terms of angle of repose aiming to reflect the effect of particle shape. The proper values of sliding friction and rolling friction coefficients for different burden materials are then recommended. Burden trajectories from the rotating chute and burden layers formed at the throat region are compared with physical experiments, showing consistent results. The effects of some key variables such as chute angle and friction coefficients are also examined. The results indicate that burden trajectories are not sensitive to sliding and rolling friction coefficients. But those variables should be properly set to obtain reasonable burden layer profiles.

AB - Burden distribution plays an important role in achieving stable and efficient operation in a modern ironmaking blast furnace. In this process, burden materials are charged and distributed to the throat region, and further affect gas distribution and blast furnace performance. In this work, a model based on discrete element method is established. In particular, the surface properties of spherical particles are first justified in terms of angle of repose aiming to reflect the effect of particle shape. The proper values of sliding friction and rolling friction coefficients for different burden materials are then recommended. Burden trajectories from the rotating chute and burden layers formed at the throat region are compared with physical experiments, showing consistent results. The effects of some key variables such as chute angle and friction coefficients are also examined. The results indicate that burden trajectories are not sensitive to sliding and rolling friction coefficients. But those variables should be properly set to obtain reasonable burden layer profiles.

KW - Blast furnace

KW - Bell-less top

KW - Burden distribution

KW - Discrete element method

UR - http://onlinelibrary.wiley.com/doi/10.1002/srin.201400360/epdf

U2 - 10.1002/srin.201400360

DO - 10.1002/srin.201400360

M3 - Article

VL - 86

SP - 651

EP - 661

JO - Steel Research International

JF - Steel Research International

SN - 1611-3683

IS - 6

ER -