May 17 2015IspatGuru
May 17 2015 · Remedial measures and Campaign Life of a Blast Furnace. satyendra May 17 2015 0 Comments blast furnace campaign life cooling staves gunniting repair stack. hearth tap hole Read More. About IspatGuru. Through the ispatguru website I share my knowledge and experience gained through my association with the steel industry for over 54
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Methods of extending the campaign of a blast furnace
As before the main trends in world blast-furnace smelting in this century have been a decrease in coke use an increase in furnace productivity and lengthening of the furnace campaign. Over the last few decades metallurgical companies have paid an increasing amount of attention to extending the life of blast furnaces through the use of various technical technological and organizational
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IOP Conference Series Materials Science and Engineering
The campaign life of the blast furnace very much affected by the properties of refractory Lining materials and decrease of its thickness due to erosion in the process. The cooling of refractory lining is the most contributing factor in deciding the Furnace campaign life. Lining cooling by stave is one of the results of such endeavours.
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Practices and Design for Extending the Hearth life in the
Keywords Pyrometallurgy steel hearth blast furnace AbstractThe Mittal Steel Company operates about 36 blast furnaces on four continents. Furnaces range from 1100 m3 to 4800 m3 inner volume. The focus of the group is to push for increasing productivity and increasing campaign life. This
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Conjugate heat transfer analysis of copper staves and
Lining erosion is the most important factor for determining the campaign life of a blast furnace. To provide information about the heat transfer of the copper stave in the belly of the No. 1 blast furnace at CSC (China Steel Corporation) a conjugate heat transfer model including the heat transfer of the stave and sensor bar in thermal conduction and radiation transmission from the gas
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Dome Combustion Hot Blast Stove for Huge Blast Furnace
Sep 01 2012 · Ironmaking 2009 29(4) 1 (in Chinese). 7 ZHANG Fu-ming. Transfer Theory and Design Research on Long Campaign Life and High Efficiency in Hot Blast Stove D . Beijing University of Science and Technology Beijing 2010 (in Chinese). 8 ZHANG Fu-ming. Research and Innovation of the Key Tech nologies at Modern Large Blast Furnace J .
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Port Kembla Steelworks Blast Furnace RelineBlueScope
In BlueScope s half year results announcement today we advised the company is considering options for the future configuration of the Port Kembla Steelworks once the No.5 Blast Furnace comes to the end of its current operating campaign which is now expected to occur in the late 2020 s with an indicative range of 2026 to 2030. The furnace is operating well and the business is planning to
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Formation mechanism of the graphite-rich protective layer
A long campaign life of blast furnaces is heavily linked to the existence of a protective layer in their hearths. In this work we conducted dissection studies and investigated damage in blast furnace hearths to estimate the formation mechanism of the protective layer. The results illustrate that a significant amount of graphite phase was trapped within the hearth protective layer.
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Analysis of the Relationship between Productivity and
High smelting intensity and long campaign life are highly desired for blast furnace ironmaking. However high smelting intensity or productivity has an adverse effect on the campaign life. An analysis of the relationship between productivity and the temperature of a side wall of a hearth based on the data from a commercial blast furnace is
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Improved Designs and Campaign Life of a Blast Furnace
May 23 2015 · Hence it is necessary to modify operating practices as the campaign progresses and in response to the problem areas for the maximization of campaign life. Remedial measuresOnce wear or damage that affects the life of the BF becomes evident engineering repair techniques are to be used or developed to maximize campaign life.
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CAREFUL CONTROL OF REFRACTORY LINING CONDITIONS
Blast furnace #4 is the oldest in service with its campaign reaching 11 years. • The service life of blast furnaces ##1 2 and 5 is 7 6 and 10 years respectively after last major reline. • Blast furnaces ## 1 and 2 have complete cast iron hearth s cooling system. • BF #4 and #5 hearth is equipped with copper and cast iron staves while
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Successful relining of blast furnace 6 in Linzvoestalpine
Dec 22 2016 · Blast furnace 5 and 6 in Linz. By the end of November 2016 the time had come the "blast furnace 6 relining" project in Linz was officially completed. Thanks to the perfect teamwork it was even possible to finish ahead of the scheduled relining period of 136 days. The new blast furnace 6 is now once again fully operational and secures the
Get Price
Analysis of the Relationship between Productivity and
N2High smelting intensity and long campaign life are highly desired for blast furnace ironmaking. However high smelting intensity or productivity has an adverse effect on the campaign life. An analysis of the relationship between productivity and the temperature of a side wall of a hearth based on the data from a commercial blast furnace is
Get Price
A methodology to investigate the wear of blast furnace
The blast furnace campaign life is largely determined by the damage to the hearth area. Bricks and skulls in the hearth were sampled and investigated after the blowing-out of one commercial blast
Get Price
Methods of extending the campaign of a blast furnace
As before the main trends in world blast-furnace smelting in this century have been a decrease in coke use an increase in furnace productivity and lengthening of the furnace campaign. Over the last few decades metallurgical companies have paid an increasing amount of attention to extending the life of blast furnaces through the use of various technical technological and organizational
Get Price
3-Development and Introduction of Monitoring System of
Key words Blast furnace hearth lining diagnosis thermocouples mathematical model adaptation introduction in industry. 1. Introduction The duration of the campaign of the blast furnace that is the time from one major overhaul to another occurs from 5 to 20 years. One of the causes which can reduce considerably the campaign continuance is
Get Price
A methodology to investigate the wear of blast furnace
The blast furnace campaign life is largely determined by the damage to the hearth area. Bricks and skulls in the hearth were sampled and investigated after the blowing-out of one commercial blast
Get Price
Deadman and hearth phenomena in the blast furnace
The deadman has also a significant effect on lining wear and campaign length by controlling hot metal flow in the hearth. Particular observations of hearth behaviour have been made during the last six years. Data of blast furnace operation have been studied and
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Conjugate heat transfer analysis of copper staves and
Lining erosion is the most important factor for determining the campaign life of a blast furnace. To provide information about the heat transfer of the copper stave in the belly of the No. 1 blast furnace at CSC (China Steel Corporation) a conjugate heat transfer model including the heat transfer of the stave and sensor bar in thermal conduction and radiation transmission from the gas
Get Price
Successful relining of blast furnace 6 in Linzvoestalpine
Dec 22 2016 · Blast furnace 5 and 6 in Linz. By the end of November 2016 the time had come the "blast furnace 6 relining" project in Linz was officially completed. Thanks to the perfect teamwork it was even possible to finish ahead of the scheduled relining period of 136 days. The new blast furnace 6 is now once again fully operational and secures the
Get PricePort Kembla Steelworks Blast Furnace RelineBlueScope
In BlueScope s half year results announcement today we advised the company is considering options for the future configuration of the Port Kembla Steelworks once the No.5 Blast Furnace comes to the end of its current operating campaign which is now expected to occur in the late 2020 s with an indicative range of 2026 to 2030. The furnace is operating well and the business is planning to
Get Price
How to prolong life of the 5100M3 blast furnace
Oct 31 2019 · The key to high efficiency and long campaign life design lies in the organic combination of the blast furnace s inner profile lining structure cooling system and automatic detection. The capacity of the 5100m 3 blast furnace of ShanSteel Group Rizhao Co Ltd is
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3-Development and Introduction of Monitoring System of
Key words Blast furnace hearth lining diagnosis thermocouples mathematical model adaptation introduction in industry. 1. Introduction The duration of the campaign of the blast furnace that is the time from one major overhaul to another occurs from 5 to 20 years. One of the causes which can reduce considerably the campaign continuance is
Get Price
CAREFUL CONTROL OF REFRACTORY LINING CONDITIONS
Blast furnace #4 is the oldest in service with its campaign reaching 11 years. • The service life of blast furnaces ##1 2 and 5 is 7 6 and 10 years respectively after last major reline. • Blast furnaces ## 1 and 2 have complete cast iron hearth s cooling system. • BF #4 and #5 hearth is equipped with copper and cast iron staves while
Get PricePractice for Extending Blast Furnace Campaign Life at
A new blast furnace with an inner volume of 3 400 m3 is under construction and is designed with a campaign life of 20 years without any medium repair. The campaign life of blast furnaces in China
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Coke Microstructure and Graphitization Across the Hearth
blast furnace productivity hot metal quality and coke/coal consumption as well as the campaign life of blast furnace hearth are all affected by the permeability of the coke deadman.1–4) The behavior and characteristic of coke in the blast furnace have been intensively studied. Most research-ers were focused on tuyere coke and the tuyere coke
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