The influence of central coke charging mode on the burden surface shape and distribution of a blast furnace-Reference-Cited by-同舟云学术

The influence of central coke charging mode on the burden surface shape and distribution of a blast furnace

Published:2022-08-03 Issue:2 Volume:21 Page:169-179
ISSN:1542-6580
Container-title:International Journal of Chemical Reactor Engineering
language:en
Short-container-title:

Author:

Di Zhanxia¹^ORCID,Huang Mingrong¹,Zhou Xiaobin¹^ORCID,Liu Junhan¹,Sun Junjie²,Wang Ping¹,Wang Hongtao¹

Affiliation:

1. School of Metallurgy Engineering, Anhui University of Technology , Ma’anshan , Anhui 243032 , China

2. Baosteel Central Research Institute, Baoshan Iron & Steel Co., Ltd , Shanghai 201900 , China

Abstract

Abstract The burden surface shape and distribution in the shaft directly affect the gas distribution, heat transfer and chemical reactions inside the blast furnace. The current study developed a three-dimensional model of bell-less top charging to investigate the influence of the “central coke charging/sub-central coke charging” (CCC/SCCC) mode on the burden surface shape, burden distribution, and mass percentage of ore-to-coke (O/C). The results showed that the burden height of the region between the middle and edge is low by applying the CCC mode, while there is a heap valley in the center and a heap top in the middle region when the SCCC mode was adopted. In radial direction, the mass percentage of bigger size coke in the middle region is largest for the CCC mode, while the largest of the mass percentage was obtained in the center region by applying the SCCC mode. In longitudinal direction, the mass percentages of bigger coke and ore at the top region are largest for both modes. Besides, the mass percentage of O/C increased and then decreased to zero at the center for both modes. And the maximum of the mass percentage of O/C were 7.63 and 7.38, respectively.

Publisher

Walter de Gruyter GmbH

Subject

General Chemical Engineering

Link

https://www.degruyter.com/document/doi/10.1515/ijcre-2022-0066/pdf

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