Development of an analytical equation for calculation of the blast furnace fuel rate

1986 ◽  
Vol 17 (4) ◽  
pp. 705-724 ◽  
Author(s):  
David M. Kundrat
Keyword(s):  
Blast Furnace ◽  
Analytical Equation ◽  
Furnace Fuel ◽  
Fuel Rate

scholarly journals Utilization of Organic Mixed Biosludge from Pulp and Paper Industries and Green Waste as Carbon Sources in Blast Furnace Hot Metal Production

2021 ◽  
Vol 13 (14) ◽  
pp. 7706
Author(s):  
Tova Jarnerud ◽  
Andrey V. Karasev ◽  
Chuan Wang ◽  
Frida Bäck ◽  
Pär G. Jönsson
Keyword(s):  
Blast Furnace ◽  
Carbon Sources ◽  
Hydrothermal Carbonization ◽  
Pulp And Paper ◽  
Hot Metal ◽  
Technological Parameters ◽  
Metal Production ◽  
Green Waste ◽  
Fuel Rate ◽  
Pulp And Paper Industries

A six day industrial trial using hydrochar as part of the carbon source for hot metal production was performed in a production blast furnace (BF). The hydrochar came from two types of feedstocks, namely an organic mixed biosludge generated from pulp and paper production and an organic green waste residue. These sludges and residues were upgraded to hydrochar in the form of pellets by using a hydrothermal carbonization (HTC) technology. Then, the hydrochar pellets were pressed into briquettes together with commonly used briquetting material (in-plant fines such as fines from pellets and scraps, dust, etc. generated from the steel plant) and the briquettes were top charged into the blast furnace. In total, 418 tons of hydrochar briquettes were produced. The aim of the trials was to investigate the stability and productivity of the blast furnace during charging of these experimental briquettes. The results show that briquettes containing hydrochar from pulp and paper industries waste and green waste can partially be used for charging in blast furnaces together with conventional briquettes. Most of the technological parameters of the BF process, such as the production rate of hot metal (<1.5% difference between reference days and trial days), amount of dust, fuel rate and amount of injected coal, amount of slag, as well as contents of FeO in slag and %C, %S and %P in the hot metal in the experimental trials were very similar compared to those in the reference periods (two days before and two days after the trials) without using these experimental charge materials. Thus, it was proven that hydrochar derived from various types of organic residues could be used for metallurgical applications. While in this trial campaign only small amounts of hydrochar were used, nevertheless, these positive results support our efforts to perform more in-depth investigations in this direction in the future.

Blast Furnace Fuel Injection

2020 ◽  
pp. 573-600
Author(s):  
Ian Cameron ◽  
Mitren Sukhram ◽  
Kyle Lefebvre ◽  
William Davenport
Keyword(s):  
Blast Furnace ◽  
Fuel Injection ◽  
Furnace Fuel

Thermal Aspects of Blast Furnace Fuel Injection

JOM ◽  
1961 ◽  
Vol 13 (1) ◽  
pp. 41-44
Author(s):  
A. M. Decker
Keyword(s):  
Blast Furnace ◽  
Fuel Injection ◽  
Furnace Fuel

scholarly journals Estimation of Lower Limit of Fuel Rate in Blast Furnace by Mathematical Model

1979 ◽  
Vol 65 (10) ◽  
pp. 1544-1552 ◽  
Author(s):  
Yuji TOGINO ◽  
Masayasu SUGATA ◽  
Kazuyoshi YAMAGUCHI
Keyword(s):  
Mathematical Model ◽  
Blast Furnace ◽  
Lower Limit ◽  
Fuel Rate

Comprehensive Mathematical Model of Full Oxygen Blast Furnace and its Solution

2012 ◽  
Vol 567 ◽  
pp. 178-186 ◽  
Author(s):  
Jia Le Meng ◽  
Zhan Cheng Guo ◽  
Hui Qing Tang
Keyword(s):  
Mathematical Model ◽  
Blast Furnace ◽  
Combustion Temperature ◽  
Raw Materials ◽  
Balance Model ◽  
Operating Parameters ◽  
Chemical Balance ◽  
New Process ◽  
Theoretical Combustion Temperature ◽  
Fuel Rate

A comprehensive mathematical model of full blast furnace with top gas recycling was established. The model consists of the calculation equations for gas composition of four zones (hearth, belly, lower shaft. top) in the blast furnace, the thermo-chemical balance model, the energy balance model of hot stand-by zone of the blast furnace and the shaft efficiency model. By using the model, the new process was calculated. The results show that coke rate and coal rate of the new process are both 200 kg/thm, fuel rate is decreased by 22.8% compared with that of conventional blast furnace. In addition, theoretical combustion temperature decreases with increasing hearth-recycle gas quantity. Increasing of hearth-recycle gas quantity by 10 m3/thm decreases theoretical combustion temperature by 10.0 K. Furthermore, the model could be applied to calculate the operating parameters when the raw materials and fuel conditions are different, and the change laws of operating parameters under the same raw materials and fuel conditions could also be studied with this model.

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