Simulation and Experiment Studies on Radial Porosity Distribution (RPD) of Coke Layer in Blast Furnace Throat

2019 ◽  
Author(s):  
Y. Ge ◽  
M. Li ◽  
W. Liu ◽  
X. Tang ◽  
H. Wei ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Porosity Distribution ◽  
Simulation And Experiment ◽  
Coke Layer

scholarly journals Influence of Coke Layer Collapse Phenomenon on Burden Distribution at the Top of Blast Furnace

1986 ◽  
Vol 72 (7) ◽  
pp. 783-790 ◽  
Author(s):  
Yoshio OKUNO ◽  
Kazuya KUNITOMO ◽  
Toshiyuki IRITA ◽  
Shinroku MATSUZAKI
Keyword(s):  
Blast Furnace ◽  
Burden Distribution ◽  
Coke Layer

Porosity distribution of moving burden layers in the blast furnace throat

2021 ◽  
Vol 23 (1) ◽  
Author(s):  
Han Wei ◽  
Weitian Ding ◽  
Ying Li ◽  
Hao Nie ◽  
Henrik Saxén ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Porosity Distribution

scholarly journals Discrete Element Method (DEM) and Experimental Studies of the Angle of Repose and Porosity Distribution of Pellet Pile

Processes ◽  
2019 ◽  
Vol 7 (9) ◽  
pp. 561
Author(s):  
Han Wei ◽  
Meng Li ◽  
Ying Li ◽  
Yao Ge ◽  
Henrik Saxén ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Friction Coefficient ◽  
Gas Flow ◽  
Experimental Studies ◽  
Static Friction ◽  
Furnace Operation ◽  
Angle Of Repose ◽  
Physical Parameters ◽  
Porosity Distribution ◽  
Static Friction Coefficient

The lumpy zone in a blast furnace is composed of piles formed naturally during burden charging. The properties of this zone have significant effects on the blast furnace operation, including heat and mass transfer, chemical reactions and gas flow. The properties of the layers mainly include the angle of repose and porosity distribution. This paper introduces two methods, the Discharging Method and the Lifting Method, to study the influence of the packing method on the angle of repose of the pile. The relationships of the angle of repose and porosity with physical parameters are also investigated. The porosity distribution in the bottom of a pile shows a decreasing trend from the region below the apex to the center. The coordination number of the particles is employed to explain this change. The maximum of the frequency distribution of it was found to show a negative correlation to the static friction coefficient, but becomes insensitive to the parameter as the static friction coefficient increases above 0.6.

Simulation on the Combustion Property of Blast-Furnace Gas Engine by GT-POWER

2010 ◽  
Vol 156-157 ◽  
pp. 965-968 ◽  
Author(s):  
Yong Qi Liu ◽  
Xiao Yan Wang ◽  
Guang Fei Zhu ◽  
Rui Xiang Liu ◽  
Zhen Qiang Gao
Keyword(s):  
Carbon Monoxide ◽  
Blast Furnace ◽  
Compression Ratio ◽  
Burning Velocity ◽  
Ignition Timing ◽  
Gas Engine ◽  
Blast Furnace Gas ◽  
Simulation And Experiment ◽  
Combustion Property ◽  
Small Steel

Blast-furnace gas produced from the process of iron making effectively can be used as fuel for engines to generate electricity for most middle and small steel enterprises. The effects of different component of blast-furnace gas, compressive ratio and ignition timing on combustion property of blast-furnace gas are simulated by GT-POWER software in this paper. The results show that flame speed and combustion rate will increase with the proportion of carbon monoxide and hydrogen increasing. There will be an optimized compression ratio value, under which the burning velocity is maximum. Within a certain scope, increasing ignition timing angle appropriately can improve property of combustion. A comparison of simulation and experiment result shows that the predictions give good results. All these results can help to optimize the parameters that affect the combustion, and provide certain reference for the further study blast-furnace gas engine.

scholarly journals Modelling of Coke Layer Collapse during Ore Charging in Ironmaking Blast Furnace by DEM

2017 ◽  
Vol 140 ◽  
pp. 02018 ◽  
Author(s):  
Yoichi Narita ◽  
Hiroshi Mio ◽  
Takashi Orimoto ◽  
Seiji Nomura
Keyword(s):  
Blast Furnace ◽  
Coke Layer

scholarly journals The researches of high-temperature properties of iron materials in laboratory conditions

2018 ◽  
pp. 64-79
Author(s):  
A.S. Nesterov ◽  
L.I. Garmash ◽  
K.P. Lopatenko ◽  
M.G. Boldenko ◽  
N.V. Gorbatenko ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Iron Ore ◽  
Raw Materials ◽  
Initial Period ◽  
Slag Formation ◽  
Integrated Method ◽  
Laboratory Conditions ◽  
Liquid Phases ◽  
Coke Layer ◽  
Slag Melt

The aim of the study is to simulate in laboratory conditions the behavior of iron ore materials in the zone of softening-melting DP and drip flow using an integrated method developed at the Institute of Ferrous Metallurgy. It is shown that the widespread idea of the formation in the blast furnace of primary slag melt based on FeO takes place mainly in the initial period of slag formation and is true for low basicity iron ore materials. For pellets, the nature of the formation of liquid phases differs significantly from the agglomerate. Experimentally established changes in the composition of the slag melt as heating. It is shown that under the conditions of temperature and heat treatment of raw materials, each temperature has its own composition of the liquid phase. When the pellets are melted, the primary melt is formed in the temperature range of 1330–13600C, in which the proportion of primary slag is 16–25%. Melt from high-silicon lumpy ore is formed at high temperatures of 1490-15200С. The mass of the primary slag with 42-48% FeO is 4-8% by weight of iron ore materials. The main part of the melt hangs on the coke nozzle on the coke layer at temperatures above 16000C. Melts formed from mixtures of iron-containing materials, as a rule, have averaged characteristics. The observed patterns make it possible to predict the behavior and properties of multicomponent charge mixtures in a blast furnace.

Blast-Furnace Flue Dust

1920 ◽  
Vol 1 (2supp) ◽  
pp. 184-184
Author(s):  
R. W. H. Atcherson
Keyword(s):  
Blast Furnace ◽  
Flue Dust
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