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VERSION:2.0
METHOD:PUBLISH
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ORGANIZER;CN=ESTAD 2023:mailto:info@metec-estad.com
LOCATION:Room 13
SUMMARY:Utilization of high carbon steelworks by-products for (partial) breeze replacement in industrial sintering
DESCRIPTION:
The increasingly high demands on European integrated steelworks in terms of sustainability and circularity necessitate the reduction of Greenhouse gas emissions from fossil sources like coke breeze, and require an increase in use of internal waste streams. In this paper, the effect of iron- and steelmaking by-products on sinter productivity and quality are assessed using sinter pot trials. Furthermore, a selective preparation method, the Composite Agglomeration Process (CAP), was used to improve the process characteristics of carbon-rich by-products. This method entails pre-pelletisation of fine-grained components of the sinter mixture on a balling disc, followed by a secondary mixing with the coarse-grained components. To assess the use of the carbon-rich by-products, sinter pot trials were carried out with low (5-10%) and high (15-20%) total by-product content, using the CAP method and conventional granulation. Process monitoring shows that flame front characteristics are strongly influenced by the addition of high carbon by-products when added using conventional granulation, presumably due to combustion kinetics differing significantly from coke breeze. This effect is also observed in the CAP trials, where further effects are observed due to significant differences in sinter bed permeability. The sinter pot trials clearly show that by The CAP method, the replacement factor for coke breeze can be increased, and deterioration of sinter quality caused by high by-product utilization is reduced. 

CLASS:PUBLIC
DTSTART:20230614T143000
DTEND:20230614T145000
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