Summarized Achievements of the Porous Meso-mosaic Texture Sinter Research Project
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概要
- 論文の詳細を見る
Research Group on Porous Meso-mosaic Texture Sinter in ISIJ was established from 2001 to 2004 fiscal years to overcome difficulties to use the great amount of goethite in sintering and at the same time to improve the sinter quality. Especially, since the beginning of the present research project the ratio of Marra Mamba goethitic ore was considered to increase rapidly, and the amount of sinter necessary for the Japanese integrated steel industries was thought hard to be produced satisfactorily, because Marra Mamba ore having high combined water content and high porosity was expected unsuitable for sintering. Therefore, the method of using goethite had been studied and the combination with low slag ratio important for melting behavior of goethite was investigated.Each university had been engaged in basic research such as granulation, agglomeration, evaluation of reaction in a blast furnace to propose a new process for “porous meso-mosaic texture sinter” which was anticipated simultaneously to realize high strength and high reducibility under the conditions of low slag and high goethite ratio in sintering.By combining these basic researches, the theory of agglomeration and the engineering foundation for raw material/sintering/blast furnace process were discussed and a new process for “porous meso-mosaic texture sinter” based on improving granulation process of raw material was searched. As a result, proposed was the MEBIOS (Mosaic Embedding Iron Ore Sintering) method which involved arranging dense pre-granulated pellets (firing cured bed) in a sinter induction bed with a raw material composition capable of forming a suitable void network under normal sintering conditions.
- 社団法人 日本鉄鋼協会の論文
- 2005-04-15
著者
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Usui Tateo
Osaka Univ. Osaka Jpn
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Usui Tateo
Department Of Materials Science And Processing Graduate School Of Engineering Osaka University
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Kawaguchi Takazo
Sumitomo Metal Industries Ltd.
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Kawaguchi Takazo
Corporate R&d Laboratories Sumitomo Metal Industries Ltd.
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KAWAGUCHI Takazo
Corporate R&D, Sumitomo Metal Industries, Ltd.
関連論文
- Mechanism of Dioxins/Furans Formation at High Temperature in Combustion Processes
- Effect of Aluminum, Titanium or Silicon Addition on Nitrogen Removal from Molten Iron
- Nitrogen Removal from Molten Iron to Gas Phase through CaO-Al_2O_3-CaF_2 Melt
- Analysis of Raw Material Flow with Axial Direction in Continuous Drum Mixer for Sintering Process
- Influence of Neodymium on the Deoxidation and Desulfurization Equilibria of Liquid Iron in the Fe-Nd-O-S(-Al) System at 1873K
- Properties of Core Ore in Quasi-particle Required for Large Amounts Usage of Limonitic Ores in Iron Ore Sintering Process
- Deoxidation and Desulfurization Equilibria of Liquid Iron by Calcium
- Effect of Silicon and Carbon on the Evaporation Rate of Copper in Molten Iron
- Estimation of the Evaporation Rate of Copper and Tin from Molten Iron-Silicon Alloy
- Gaseous Reduction Behavior of Powdered Iron Ore Sinter and Analysis on the Basis of Rist Model for Fixed Bed
- Rate Enhancement of the Degassing Reaction by the Enlargement of RH and DH Reactors
- Oxidation Behavior of Silicon and Carbon in Molten Iro-Carbon-Silicon Alloys with Carbon Dioxide
- Oxidation Behavior of Silicon and Carbon in Molten Iron-Carbon-Silicon Alloys with Carbon Dioxide
- Nitrogen Dissociation Rate at Solid Surface of Ferrous Alloys
- Influence of Chlorine Forms and Dechlorination on Dioxins Formation/Suppression in the Combustion Processes (日韓資源リサイクル・材料化学に関する国際シンポジウム特集号)
- Fundamental Experiments on the H_2 Gas Injection into the Lower Part of a Blast Furnace Shaft
- Enhancement of Evaporation Removal Rate of Copper in Molten Iron by the Silicon and/or Carbon Addition
- Effect of Water-Gas Shift Reaction on Reduction of Iron Oxide Powder Packed Bed with H_2-CO Mixtures
- Effect of Surface Concentration of Alloying Elements on Nitrogen Dissolution Rate in Molten Iron Alloys
- Effect of Slag Components on Reducibility and Melt Formation of Iron Ore Sinter
- Carbothermic Reduction in the Combustion Bed Packed with Composite Pelles of Iron Oxide and Coal
- Analysis of Granules Behavior in Continuous Drum Mixer by DEM
- Numerical Simulation Model for Granulation Kinetics of Iron Ores
- Effects of Slag Content and Composition on the Reducibility of Iron Oxide Including CaO-SiO_2-Fe_tO Slag
- Production of direct reduced iron by a sheet material inserting metallization method
- Production of direct reduced iron by sheet material inserting metallization method
- Development of a 3-D Sinter Process Mathematical Simulation Model
- Effects of Compressive Stress on Corrosion-Protective Quality and Its Maintenance under a Corrosive Environment for TiN Films Deposited by Reactive HCD Ion Plating
- Influence of Properties of Fluxing Materials on the Flow of Melt Formed in the Sintering Process
- Effect of Test Condition on Decrepitation Index and Test Repeatability for Lump Iron Ore
- Improvement of Sinter Softening Property and Reducibility by Controlling Chemical Compositions
- Production of Carbon Included Sinter and Evaluation of Its Reactivity in a Blast Furnace Environment
- Sintering Behavior of Raw Material Bed Placing Large Particles
- Summarized Achievements of the Porous Meso-mosaic Texture Sinter Research Project
- Effects of Mn, Cu and Mo on the Rate of Nitrogen Dissolution in Molten Iron
- Influence of Channeling Factor on Liquid Hold-ups in an Initially Unsoaked Bed
- Re-examination of method of kinetic analysis on the rate of stepwise reduction of a single sinter particle with CO-CO2-N2 gas mixture.
- Improvement of Sinter Productivity by Adding Return Fine on Raw Materials after Granulation Stage
- Influence of Slow Descent of Solid upon the Fluids Flow Behavior in Packed Beds Irrigated by a Liquid Counter-current to an Uprising Gas Stream.