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VERSION:2.0
METHOD:PUBLISH
BEGIN:VEVENT
ORGANIZER;CN='8th ECIC & 9th ICSTI 2022':MAILTO:info@ecic-icsti.com
LOCATION:Room „Danzig“
SUMMARY:Softening behavior evaluation of pre-reduced simulant sinter iron ore with rapid heating and quenching experimental technique
DESCRIPTION:Correct knowledge about softening behaviour of iron burden in cohesive layer is becoming more and more important for the minimum carbon blast furnace operation. In order to precisely understand cohesive behaviour, a unique softening simulator under rapid heating and quenching conditions was applied. Outcomes from normal softening simulator are very complex because they depend on reduction degree, chemical composition, basicity, melts physical property, etc. One of the reasons to make complex this test is sample for this test provided as particle packed bed. In order to comprehend softening behaviour of cohesive zone, focus on behaviour of single particle as a component of particle packed bed in this study. For simplification, a pre-reduced simulant sinter iron ore was prepared as single particle sample. The samples were made from mixture of reagent oxides and they were pre-reduced to several reduction levels. The sample was rapidly heated up to 900℃, and then gradually heated up with 10℃/min under inert gas atmosphere and 0.1MPa load. Shrinkage degree of the sample particle was measured during the softening test, and quenched sample was made at certain temperature when the sample shows a characteristic tendency. Cross-sectioning observation of the quenched sample provided mineral phases distribution in the sample particle. The observation indicated that peripheral structure has a significant effect on deformation resistance. Especially in there, existence of molten slag phase could make easy to deform the sample particle shape, and metallic solid Fe phase helped to strengthen the particle's deformation resistance. 
CLASS:PUBLIC
DTSTART:20220831T102000
DTEND:20220831T104500
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