Analyses of solid flow in latest design COREX shaft furnace by physical simulation

2014 ◽  
Vol 42 (3) ◽  
pp. 209-216 ◽  
Author(s):  
H. Zhou ◽  
Z. S. Zou ◽  
Z. G. Luo ◽  
T. Zhang ◽  
Y. You ◽  
...  
Keyword(s):  
Physical Simulation ◽  
Shaft Furnace ◽  
Solid Flow ◽  
Corex Shaft Furnace

scholarly journals Influence of center gas supply device on gas–solid flow in COREX shaft furnace through DEM–CFD model

2020 ◽  
Vol 18 (5-6) ◽  
Author(s):  
Heng Zhou ◽  
Shuyu Wang ◽  
Binbin Du ◽  
Mingyin Kou ◽  
Zhiyong Tang ◽  
...  
Keyword(s):  
Gas Flow ◽  
Shaft Furnace ◽  
Middle Zone ◽  
Cfd Model ◽  
Gas Velocity ◽  
Gas Distribution ◽  
Particle Segregation ◽  
Solid Flow ◽  
Corex Shaft Furnace ◽  
Gas Supply

AbstractIn order to develop the central gas flow in COREX shaft furnace, a new installment of center gas supply device (CGD) is designed. In this work, a coupled DEM–CFD model was employed to study the influence of CGD on gas–solid flow in COREX shaft furnace. The particle descending velocity, particle segregation behaviour, void distribution and gas distribution were investigated. The results show that the CGD affects the particles descending velocity remarkably as the burden falling down to the slot. Particle segregation can be observed under the inverse ‘V’ burden profile, and the influence of CGD on the particle segregation is unobvious on the whole, which causes the result that the voidage is slightly changed. Although the effect of CGD on solid flow is not significant, the gas flow in shaft furnace has an obvious change. Compared with the condition without CGD, in the case with CGD, the gas velocity is improved significantly, especially in the middle zone of the furnace, which further promotes the center gas distribution. Meanwhile, the pressure drop in the furnace with the installation of CGD is increased partly.

scholarly journals DEM Study of Solid Flow in COREX Shaft Furnace with Areal Gas Distribution Beams

2016 ◽  
Vol 56 (2) ◽  
pp. 245-254 ◽  
Author(s):  
Heng Zhou ◽  
Zhi-Guo Luo ◽  
Tao Zhang ◽  
Yang You ◽  
Zong-Shu Zou ◽  
...  
Keyword(s):  
Shaft Furnace ◽  
Gas Distribution ◽  
Solid Flow ◽  
Corex Shaft Furnace

Analyses of solid flow in COREX shaft furnace with AGD by discrete element method

2015 ◽  
Vol 42 (10) ◽  
pp. 774-784 ◽  
Author(s):  
H. Zhou ◽  
Z. G. Luo ◽  
T. Zhang ◽  
Y. You ◽  
Z. S. Zou
Keyword(s):  
Discrete Element Method ◽  
Shaft Furnace ◽  
Discrete Element ◽  
Solid Flow ◽  
Corex Shaft Furnace ◽  
Element Method

DEM Simulation of Solid Flow Including Asymmetric Phenomena in COREX Shaft Furnace

2015 ◽  
Vol 22 (12) ◽  
pp. 1098-1106 ◽  
Author(s):  
Zhi-guo Luo ◽  
Heng Zhou ◽  
Tao Zhang ◽  
Yang You ◽  
Hai-feng Li ◽  
...  
Keyword(s):  
Shaft Furnace ◽  
Dem Simulation ◽  
Solid Flow ◽  
Corex Shaft Furnace

The Effect of Operational Parameters on the Characteristics of Gas–Solid Flow Inside the COREX Shaft Furnace

JOM ◽  
2014 ◽  
Vol 67 (2) ◽  
pp. 459-466 ◽  
Author(s):  
Mingyin Kou ◽  
Shengli Wu ◽  
Kaiping Du ◽  
Wei Shen ◽  
Xiaodong Ma ◽  
...  
Keyword(s):  
Shaft Furnace ◽  
Operational Parameters ◽  
Solid Flow ◽  
Corex Shaft Furnace

Solid Flow in a Shaft Furnace in Smelting Reduction Process under Circumferential Imbalance Conditions

2017 ◽  
Vol 88 (12) ◽  
pp. 1700212 ◽  
Author(s):  
Heng Zhou ◽  
Shengli Wu ◽  
Mingyin Kou ◽  
Biao Tang ◽  
Hanchi Cheng ◽  
...  
Keyword(s):  
Shaft Furnace ◽  
Reduction Process ◽  
Smelting Reduction ◽  
Solid Flow

Influence of CGD structure on burden descending behavior in COREX shaft furnace

2019 ◽  
Vol 116 (3) ◽  
pp. 304 ◽  
Author(s):  
Xingsheng Zhang ◽  
Zongshu Zou ◽  
Zhiguo Luo
Keyword(s):  
Large Scale ◽  
Gas Flow ◽  
Shaft Furnace ◽  
Three Dimensional ◽  
Interaction Force ◽  
Flow Patterns ◽  
Solid Flow ◽  
Reducing Gas ◽  
A New Technique ◽  
Actual Size

For improving the reducing gas flow in the center of a large-scale shaft furnace, the central gas distribution (CGD) device, a new technique, is proposed and installed in the shaft furnace. Because of its less-developed history, the solid flow in the shaft furnace with CGD is unclear. In this work, a three-dimensional cylindrical model of COREX-3000 shaft furnace in actual size is established based on DEM. Four types of burden, including pellet, lump ore, coke and flux, are taken into consideration in the model. The model is validated by experiment and then it is used to investigate the influence of CGD structure on solid flow patterns, burden descending velocity, interaction force and abrasive wear. The results show that the CGD structure has some effects on the solid flow patterns and burden descending velocity. As the CGD diameter increases, the interaction force between particles is decreased but the total abrasion energy on CGD is increased. As the CGD height increases, both the interaction force between particles and the total abrasion energy on CGD are decreased.

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