Analysis of factors that limit the production rate and coke rate in the iron blast furnace

JOM ◽  
1954 ◽  
Vol 6 (12) ◽  
pp. 1396-1406
Author(s):  
W. O. Philbrook
Keyword(s):  
Blast Furnace ◽  
Production Rate ◽  
Coke Rate ◽  
Iron Blast Furnace

Blast furnace injection for minimizing the coke rate and CO2 emissions

2021 ◽  
pp. 1-14
Author(s):  
Alexander Babich
Keyword(s):  
Blast Furnace ◽  
Co2 Emissions ◽  
Coke Rate

A Model to Simulate Titanium Behavior in the Iron Blast Furnace Hearth

2010 ◽  
Vol 41 (4) ◽  
pp. 876-885 ◽  
Author(s):  
Bao-Yu Guo ◽  
Paul Zulli ◽  
Daniel Maldonado ◽  
Ai-Bing Yu
Keyword(s):  
Blast Furnace ◽  
Furnace Hearth ◽  
Blast Furnace Hearth ◽  
Iron Blast Furnace

Influence of the consumption of pellets with different basicity on indicators of blast-furnace smelting

2021 ◽  
pp. 4-10
Author(s):  
R. R. Dema ◽  
◽  
A. N. Shapovalov ◽  
S. N. Baskov ◽  
◽  
...  
Keyword(s):  
Blast Furnace ◽  
High Temperature ◽  
Pressure Drop ◽  
Optimal Level ◽  
Coke Rate ◽  
Specific Pressure ◽  
Blast Furnace Smelting ◽  
Gas Dynamic ◽  
Fluxed Pellets ◽  
Furnace Smelting

The results of the analysis of production data on the operation of blast furnace No. 1 (useful volume 1007 m3) of Ural Steel JSC for the period from 2013 to 2018 are presented. During this period, pellets from the Mikhailovsky GOK were used with varying degrees of fluxing: pellets of natural basicity in the ratio of CaO/SiO2 equal to 0.08 ± 0.02 units. (2013-2015) and partially fluxed pellets with a basicity of 0.52 ± 0.05 units. (from 2016 to the present). It has been established that the effectiveness of the use of pellets of various basicities is determined by their behavior in the blast furnace and depends on the proportion of pellets in the iron ore part of the charge. The gas-dynamic conditions of the smelting worsen with an increase in the proportion of pellets in the charge, which is accompanied by an increase in the specific pressure drop and forces the flow rate to be adjusted. There is an optimal level of specific pressure drop (53–55 Pa per 1 m3 of blast per minute) for the operating conditions of blast furnace No. 1 of Ural Steel, which ensures the optimum combination of the melting characteristics. Deviation from the optimal level of pressure drop leads to an increase in coke rate and a decrease in the degree of CO use, which is associated with gas distribution disturbance. Due to the increase in high-temperature properties, the replacement of non-fluxed pellets with off-fluxed pellets improves the gas-dynamic conditions in the lower part of the mine (in the cohesive zone). This leads to a decrease in the total pressure drop and specific pressure drop at a constant flow rate of the blast, and is a reserve for melting intensification. To minimize coke rate and maintain the high-performance operation of blast furnaces of Ural Steel JSC, it is necessary to work on 40–45 % of fluxed or 20–25 % acid pellets in a charge. An increase in pellet consumption while maintaining the efficiency of blast-furnace smelting is possible only if their high-temperature properties are improved. The improvement of these properties is possible as a result of optimizing the basicity and increasing the MgO content, which affects the structure and properties of the silicate bond. This work is carried out within a framework of the government order (No. FZRU-2020-0011) of the Ministry of Science and Higher Education of the Russian Federation.

The Iron Blast Furnace

1979 ◽  
Keyword(s):  
Blast Furnace ◽  
Iron Blast Furnace

Injections in the iron blast furnace: a graphics study by means of the rist operating diagram

1991 ◽  
Vol 22 (3) ◽  
pp. 363-383 ◽  
Author(s):  
D. M. Kundrat ◽  
T. Miwa ◽  
A. Rist
Keyword(s):  
Blast Furnace ◽  
Iron Blast Furnace

scholarly journals Viscosities of Iron Blast Furnace Slags

2014 ◽  
Vol 54 (9) ◽  
pp. 2025-2030 ◽  
Author(s):  
Mao Chen ◽  
Dianwei Zhang ◽  
Mingyin Kou ◽  
Baojun Zhao
Keyword(s):  
Blast Furnace ◽  
Iron Blast Furnace

Stable and efficient blast furnace operation with high PCI and low coke rate at Arcelor Mittal Flat Carbon W-Europe

2007 ◽  
Vol 104 (5) ◽  
pp. 221-230 ◽  
Author(s):  
G. Dauwels ◽  
S. Clairay ◽  
E. Hess ◽  
J. Janz ◽  
J. -L. Eymond
Keyword(s):  
Blast Furnace ◽  
Furnace Operation ◽  
Coke Rate ◽  
Blast Furnace Operation

scholarly journals A strategy for an efficient simulation of countercurrent flows in the iron blast furnace

1991 ◽  
Vol 15 (10) ◽  
pp. 506-515 ◽  
Author(s):  
D.A. Bennett ◽  
R. Bradley
Keyword(s):  
Blast Furnace ◽  
Efficient Simulation ◽  
Iron Blast Furnace
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