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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:Recycling of residues from Midrex direct reduction of iron ore pellets by means of agglomeration
DESCRIPTION:Midrex process residues, such as screened oxide fines, hot briquetted iron (HBI) screened fines, dried sludge and process classifier dust contain iron and iron oxide that should be saved for better utilization of resources. The presentation is about basic research to achieve this by way of briquetting the residues with or without a binder for recycling in the reduction shaft furnace. After reduction the residue briquettes are converted into HBI by joint hot briquetting with the major proportion of direct reduced iron (DRI) pellets. Another way of utilizing the residues is adding them directly to the hot DRI pellets without prior reduction and integrating them finally also into the HBI. Process requirements for briquette production are described as well as quality parameters of the briquettes with special emphasis on mechanical strength, transport safety, thermal stability and reduction properties. REM and EDX analytical methods are used to get a deeper insight into the micro structure of the briquettes which helps understand the effect of process parameters on briquette quality. Finally, the results of a briquetting test with a roller briquetting machine in semi industrial scale gives prove of transferability of the results obtained in laboratory to industry.
CLASS:PUBLIC
DTSTART:20220632T103000
DTEND:20220632T105500
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