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ORGANIZER;CN=ESTAD 2023:mailto:info@metec-estad.com
LOCATION:Room 13
SUMMARY:Ecological and economic waste management of the ladle refractory bricks by implementing circular economy criteria
DESCRIPTION:Management of ladle refractory waste in European steelworks currently often lacks systematic and integral solutions, with a great part of it being dumped into landfills in many countries. At the same time steelmakers are worried about ladle refractory costs but the improvements are achieved by partial assumptions or trial and error. A RFCS Circular Economy project, based on a 4R´s model, answers to this situation by combining the reduction of refractory consumption with the reuse, remanufacture and recycle of ladle refractory brick waste.
The first scientific approach of the European E-CO-LadleBrick project is based on the Reduction of the refractory waste from ladles by optimising the ladle life. To this aim, a “low cost” 3D laser scanner that integrates the technologies Time-of-Flight and Phase-based has been developed. The information of the ladle refractory remaining thickness, obtained heat by heat in hot conditions, was combined with process variables to develop a prediction model of the ladle useful life and wear rate. A commercial equipment was used in order to generate additional data to feed the prediction model, and analyse the performance of the new 3D laser scanner. 
The second approach aims to optimize the valorization of worn ladle bricks after their use by means of finding suitable applications and calculating their benefits and restrictions, and implementing a data-based decision mechanism for best valorization in either Reuse, Remanufacture or Recycle. A total of 32 new applications were identified and implemented in two Decision Algorithms (one for magnesia materials and one for alumina based refractory waste) that include information about the optical and technical assessment of the refractories and the economic and environmental impact of the possible applications. 
LCA and LCC were used throughout the project to determine the environmental and economic benefits associated to this 4R approach.

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DTSTART:20230614T113000
DTEND:20230614T115000
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