blast furnace ironmaking process using pre reduced iron

Blast Furnace Ironmaking Process Using Pre-reduced

2006-7-1  Kunitomo et al. (2006) consider BF ironmaking system using pre-reduced ore in a two-stage ore reduction system that consists of a process for pre-reducing iron ore by using natural gas or some ...

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Blast furnace ironmaking process using pre-reduced

It may be possible to improve the productivity and flexibility of the blast furnace operation and also to substitute energy sources in the hot metal production processes by combining the partial reduction process using low carbon content energy sources such as natural gas with the blast furnace process.

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Blast furnace ironmaking process using pre-reduced

Blast furnace ironmaking process using pre-reduced iron ore. Kazuya Kunitomo, Yasushi Takamoto, Yasuhiko Fujiwara, Takashi Onuma ... the productivity and flexibility of the blast furnace operation and also to substitute energy sources in the pig iron production processes by combining the partial reduction process using low carbon content energy ...

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[PDF] Blast furnace ironmaking process using pre

It may be possible to improve the productivity and flexibility of the blast furnace operation and also to substitute energy sources in the pig iron production processes by combining the partial reduction process using low carbon content energy sources such as natural gas with the blast furnace process. Therefore, the productivity of producing partially reduced ore, the composition of the ...

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Blast furnace ironmaking process using pre-reduced

Corpus ID: 54793415. Blast furnace ironmaking process using pre-reduced iron ore @article{Kunitomo2006BlastFI, title={Blast furnace ironmaking process using pre-reduced iron ore}, author={K. Kunitomo and Y. Takamoto and Y. Fujiwara and

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blast furnace ironmaking process using pre reduced

2020-2-25  E13 E132 Blast Furnace Ironmaking Process Using Pre-reduced Iron Ore K. Kunitomo (Nippon Steel Corporation) and T. Takamoto (Nippon Steel Corporation) 283 E13 E133 Optimization of Ironmaking Process for Reducing CO2 Emissions T. Ariyama (Tohoku University),M. Sato (JFE Steel Corporation) and R. Murai (JFE Steel Corporation) 287Get PriceThe ...

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Blast furnace ironmaking process using pre-reduced

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Blast Furnace Ironmaking System Using Partially

As for the technological problems of using the partially reduced ore in the blast furnace process, the deadman temperature might decrease if a large amount of fine iron ore that has been partially ...

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Blast furnace ironmaking process using pre-reduced

文献「Blast furnace ironmaking process using pre-reduced iron ore」の詳細情報です。J-GLOBAL 科学技術総合リンクセンターは研究者、文献、特許などの情報をつなぐことで、異分野の知や意外な発見などを支援する新しいサービスです。またJST内外の良質なコンテンツへ案内いたします。

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Blast Furnace Ironmaking System Using Partially

2010-6-28  The production rate of the partially reduced iron ore is much higher than that of the fully reduced iron one, because the reduction rate tends to decrease remarkably as the reduction degree rises. As for the technological problems of using the partially reduced ore in the blast furnace process, the deadman temperature might decrease if a large ...

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blast furnace ironmaking process using pre reduced

2020-2-25  E13 E132 Blast Furnace Ironmaking Process Using Pre-reduced Iron Ore K. Kunitomo (Nippon Steel Corporation) and T. Takamoto (Nippon Steel Corporation) 283 E13 E133 Optimization of Ironmaking Process for Reducing CO2 Emissions T. Ariyama (Tohoku University),M. Sato (JFE Steel Corporation) and R. Murai (JFE Steel Corporation) 287Get PriceThe ...

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iron ore pellets versus sinter in blast furnace

iron ore pellets versus sinter in blast furnace Blast Furnace Ironmaking Process Using Pre reduced Iron Ore197 Кб Fine ore is a raw material for sinter that is the main component of the blast furnace burdenA fluidized bed is used when reducing fine iron ore directly5 7) whereas a shaft furnace is used when reducing lump ore or pellets [Chat ...

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Energy Consumption Analysis on Blast Furnace

Mathematical model of blast furnace ironmaking process using pre-reduced burden was established. The iron grade of raw material, metallization rate of pre-reduced iron ore and combined form of iron effect on energy consumption of blast furnace was calculated. Energy consumption of blast furnace ironmaking using pre-reduced burden between traditional blast furnace was compared.

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No.94 Special Issue on Ironmaking Technical Papers

Latest Blast Furnace Relining Technology at Nippon Steel (1,451KB) Blast Furnace Ironmaking Process Using Pre-reduced Iron Ore (197KB) Fine Ore Injection into Blast Furnace through Tuyeres (272KB) Dust Recycling System by the Rotary Hearth Furnace (2,690KB)

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Development of the Process for Producing Pre-reduced ...

2019-4-3  Blast furnace 0 200 300 400 500 600 700 10 20 30 40 50 60 70 Fig. 3 Relationship between estimated CO 2 emission and reduction degree of PRA Fig. 1 Flow diagram in conventional process and new pro-cess (b) Proposed ironmaking process Ore Ore Coke oven Coke Blast furnace Reducing agent Pre-Reduced agglomerates

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Recent Trends in Ironmaking Blast Furnace

2016-9-3  Kunitomo K, Takamoto Y, Fujiwara Y, Onuma T (2006) Blast furnace ironmaking process using pre-reduced iron ore. Nippon Steel Technical Report, No. 94, pp 133–138 Google Scholar Ladanai S, Vinterbäck J (2009) Global potential of sustainable biomass for energy.

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Ironmaking 101 – From Ore to Iron with Smelting and

2017-10-17  The reduced iron along with coal and lime is fed to a gasifier-melter, which completes the reduction process and produces pig iron or hot metal of the same quality as a blast furnace. The reducing gases generated by the gasifier-melter are recycled to reduce the iron ore in the pre-reduction step.

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HOW A BLAST FURNACE WORKS - Foundry Gate

2018-7-10  HOW A BLAST FURNACE WORKS Introduction The purpose of a blast furnace is to chemically reduce and physically convert iron oxides into liquid iron called "hot metal". The blast furnace is a huge, steel stack lined with refractory brick, where iron ore, coke and limestone are dumped into the top, and preheated air is blown into the bottom.

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iron ore pellet consumption percentage blast furnace

Increasing iron ore demand coupled . Get Price; Blast Furnace Ironmaking Process Using Pre-reduced Iron Ore. the reducing agents rate in the blast furnace when the partially reduced ore was used were ergy consumed in the ironmaking processes accounts for as much as about 70 of the a shaft furnace is used when reducing lump ore or pellets.

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COREX FINEX - NEW DEVELOPMENTS IN UTILIZATION

2014-9-2  2.1. Direct reduced ironis a process in which iron ore is reduced to the solid state or by gaseous reducing agent. The final product from DRI is solid. 2.2.Smelting reduction technology is an alternative technology to the conventional blast furnace. The blast furnace has been the dominant technology for iron production for centuries.

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blast furnace ironmaking process using pre reduced

2020-2-25  E13 E132 Blast Furnace Ironmaking Process Using Pre-reduced Iron Ore K. Kunitomo (Nippon Steel Corporation) and T. Takamoto (Nippon Steel Corporation) 283 E13 E133 Optimization of Ironmaking Process for Reducing CO2 Emissions T. Ariyama (Tohoku University),M. Sato (JFE Steel Corporation) and R. Murai (JFE Steel Corporation) 287Get PriceThe ...

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Energy Consumption Analysis on Blast Furnace

Mathematical model of blast furnace ironmaking process using pre-reduced burden was established. The iron grade of raw material, metallization rate of pre-reduced iron ore and combined form of iron effect on energy consumption of blast furnace was calculated. Energy consumption of blast furnace ironmaking using pre-reduced burden between traditional blast furnace was compared.

Read More

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Recent Trends in Ironmaking Blast Furnace

2016-9-3  Kunitomo K, Takamoto Y, Fujiwara Y, Onuma T (2006) Blast furnace ironmaking process using pre-reduced iron ore. Nippon Steel Technical Report, No. 94, pp 133–138 Google Scholar Ladanai S, Vinterbäck J (2009) Global potential of sustainable biomass for energy.

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Blast Furnace Ironmaking Blast Furnace Iron

2021-2-16  IRONMAKING IN BLAST FURNACES 0 200 400 600 800 1000 1200 1400 1600 - 30 - 20 - 10 - 0 - 5 - - Fe 2 O 3 Scrap Hot metal Refining Liquid steel Direct molten steelmaking Blast furnace and Smelting Reduction Direct reduction Remelting DRI, HBI O x y g e n % C a r b o n % Temperature O C Iron ore Scrap IRON ORE TO LIQUID STEEL BLAST FURNACE IRONMAKING Amongst all the ironmaking ...

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Ironmaking 101 – From Ore to Iron with Smelting and

2017-10-17  The reduced iron along with coal and lime is fed to a gasifier-melter, which completes the reduction process and produces pig iron or hot metal of the same quality as a blast furnace. The reducing gases generated by the gasifier-melter are recycled to reduce the iron ore in the pre-reduction step.

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iron ore pellet consumption percentage blast furnace

Increasing iron ore demand coupled . Get Price; Blast Furnace Ironmaking Process Using Pre-reduced Iron Ore. the reducing agents rate in the blast furnace when the partially reduced ore was used were ergy consumed in the ironmaking processes accounts for as much as about 70 of the a shaft furnace is used when reducing lump ore or pellets.

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Redsmelt process for ironmaking – IspatGuru

2018-4-19  Redsmelt process for ironmaking. Redsmelt is a new ironmaking process based a two reduction steps. These are (i) pre-reduction of iron bearing materials in a rotary hearth furnace (RHF), and (ii) smelting of the hot pre-reduced iron (DRI, direct reduced iron). Originally a submerged arc furnace (SAF) has been used for the second step.

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IronMaking Process Alternatives Screening Study

2000-10-1  IronMaking Process Alternatives Screening Study. Full Record; Other Related Research; Abstract. This study by Lockwood Greene evaluates a number ironmaking processes. The appendices provide greater detail and further exploration of the ironmaking processes, including components, relative costs, and comparisons.

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Direct-Reduced Iron - an overview ScienceDirect Topics

2012-1-5  By using direct reduced iron, steel makers can dilute lower grade ores and lower cost ferrous scrap to attain acceptable levels of contamination in the mix. If direct reduced iron pellets are substituted for pelletized ores in blast furnaces, the amount of coke per ton of pig iron would be cut.

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HIsmelt Process of Ironmaking – IspatGuru

2013-7-2  Forehearth, hot blast, Hot metal, HRDF, Iron ore, non coking coal, oxygen enrichment, Splash, SRV, HIsmelt Process of Ironmaking. HIsmelt process is an air based direct smelting technology which is simple yet innovative. The process is for the production of liquid iron (hot metal) using iron ore fines or any other appropriate ferrous feed material.

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