Simulation of particle flow in a bell-less type charging system of a blast furnace using the discrete element method

被引：64

作者：

Zhang, Jianliang ^{[1
]}

Qiu, Jiayong ^{[1
]}

Guo, Hongwei ^{[1
]}

Ren, Shan ^{[1
]}

Sun, Hui ^{[1
]}

Wang, Guangwei ^{[1
]}

Gao, Zhengkai ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, Sch Met & Ecol Engn, Beijing 100083, Peoples R China

来源：

PARTICUOLOGY | 2014年 / 16卷

关键词：

Discrete element method; Blast furnace; Bell-less charging system; Granular flow; Size segregation; BURDEN DISTRIBUTION; SINTERED ORE; SOLID FLOW; MODEL; DEM; SEGREGATION; BEHAVIOR; HOPPERS; CHUTE; ANGLE;

D O I：

10.1016/j.partic.2014.01.003

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A three-dimensional model was established by the discrete element method (DEM) to analyze the flow and segregation of particles in a charging process in detail. The simulation results of the burden falling trajectory obtained by the model were compared with the industrial charging measurements to validate the applicability of the model. The flow behavior of particles from the weighing hopper to the top layer of a blast furnace and the heaping behavior were analyzed using this model. A radial segregation index (RSI) was used to evaluate the extent of the size segregation in the charging process. In addition, the influence of the chute inclination angle on the size segregation and burden profile during the charging process was investigated. (C) 2014 Published by Elsevier B.V. on behalf of Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences.

引用

页码：167 / 177

页数：11

共 32 条

[1] DEM modelling of industrial granular flows: 3D case studies and the effect of particle shape on hopper discharge
Cleary, PW
Sawley, ML
[J]. APPLIED MATHEMATICAL MODELLING, 2002, 26 (02) : 89 - 111
[2] DISCRETE NUMERICAL-MODEL FOR GRANULAR ASSEMBLIES
CUNDALL, PA
STRACK, ODL
[J]. GEOTECHNIQUE, 1979, 29 (01): : 47 - 65
[3] Du H. G., 1986, IRON MAKING, V21, P1
[4] Gao Z. K., 2010, U.S. Patent, Patent No. [No. 7719564B2, 7719564]
[5] Gao Z. K., 2010, P AISTECH PITTSB US, P565
[6] Gao ZK, 2009, J IRON STEEL RES INT, V16, P956
[7] Experimental and numerical investigations of gouge formation related to blast furnace burden distribution
Ho, C. K.
Wu, S. M.
Zhu, H. P.
Yu, A. B.
Tsai, S. T.
[J]. MINERALS ENGINEERING, 2009, 22 (11) : 986 - 994
[8] Jimenez J., 1998, REV METAL MADRID, V34, P158
[9] Modeling granular segregation in flow from quasi-three-dimensional, wedge-shaped hoppers
Ketterhagen, William R.
Curtis, Jennifer S.
Wassgren, Carl R.
Hancock, Bruno C.
[J]. POWDER TECHNOLOGY, 2008, 179 (03) : 126 - 143
[10] Predicting the flow mode from hoppers using the discrete element method
Ketterhagen, William R.
Curtis, Jennifer S.
Wassgren, Carl R.
Hancock, Bruno C.
[J]. POWDER TECHNOLOGY, 2009, 195 (01) : 1 - 10

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