Título: | VALUE IN USE ASSESMENT OF METALIC BURDEN TO THE BLAST FURNACE PROCESS | ||||||||||||||||||||||||||||||||||||||||||||
Autor: |
AUGUSTO MENDONCA LESSA |
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Colaborador(es): |
JOSE CARLOS D ABREU - Orientador |
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Catalogação: | 16/JAN/2018 | Língua(s): | PORTUGUESE - BRAZIL |
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Tipo: | TEXT | Subtipo: | THESIS | ||||||||||||||||||||||||||||||||||||||||||
Notas: |
[pt] Todos os dados constantes dos documentos são de inteira responsabilidade de seus autores. Os dados utilizados nas descrições dos documentos estão em conformidade com os sistemas da administração da PUC-Rio. [en] All data contained in the documents are the sole responsibility of the authors. The data used in the descriptions of the documents are in conformity with the systems of the administration of PUC-Rio. |
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Referência(s): |
[pt] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=32704&idi=1 [en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=32704&idi=2 |
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DOI: | https://doi.org/10.17771/PUCRio.acad.32704 | ||||||||||||||||||||||||||||||||||||||||||||
Resumo: | |||||||||||||||||||||||||||||||||||||||||||||
As steel is the most utilized and applied material in the world the iron ore
industry has a very important role to society on improving human beings life
conditions. It is of single importance the technological development of iron ore
companies on producing higher quality materials, in larger scales and at lower
costs creating value to the whole. It was developed an iron ore burden Value In
Use assessment model for the Blast Furnace process which is responsible for
producing 94 percent of all iron in the World. The outputs from the model were cross
checked with real operational data of 23 Blast Furnaces with distinct practices,
from 7 countries. The model exhibited an average deviation achieved was of 4 percent
between the calculated outputs and the operational data set. For the case study one
out of the 23 Blast Furnaces was chosen due its world average equivalent burden
distribution in terms of sinter pellets and lump to perform an iron ore Value In
Use assessment. Scenarios were built with pellet participation in the metallic
burden varying from 17 to 50 percent, achieving 4,6 percent gains in the contribution margin
and 2,1 percent incremental BF productivity in one of the scenarios. If all this gain is
reverted to the pellet price, it could be increased by 11 percent. The obtained results
show how important the development of Value In Use analysis tools are as to
revel true gains or losses from each iron ore type to the process. Further Value In
Use analysis is an important tool to mining and steel industries and is always
made against one reference case, relating it to a specific market and commercial
conditions being applied to a single operation.
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