Título

DESENVOLVIMENTO DAS CURVAS DE VELOCIDADE PARA OTIMIZAÇÃO DO ESGOTAMENTO DE AÇO NO DISTRIBUIDOR

DEVELOPMENT OF SPEED CURVES FOR OPTIMIZATION OF THE EMPTYING TUNDISH STEEL

Autoria

Filho, Marcos Daniel Gouveia

Filho, Marcos Daniel Gouveia

9 Artigos, Baixados 3885 Vezes

DOI

10.5151/2594-5300-35131

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Resumo

AT COMPANHIA SIDERúRGICA DO PECéM (CSP), IN MID-2021, THE MARK OF IMPLEMENTATION OF THE NEW REFRACTORY PROFILE ON THE SOLE OF CONTINUOUS CASTING TUNDISH WAS REACHED BY MORE THAN 90%, CALLED "RAISED BOTTOM" WITH REFERENCE TO YES® TECHNOLOGY (YIELD ENHANCEMENT SYSTEM), WHICH AIMS TO REDUCE THE AMOUNT OF THE REMAINING STEEL IN TUNDISH (TUNDISH SKULL) AT THE END OF THE CONTINUOUS CASTING PROCESS, EQUIVALENTLY REPLACING THE REMAINING STEEL VOLUME WITH REFRACTORY MATERIAL, THUS KEEPING THE HEIGHT OF THE FINAL COLUMN OF LIQUID STEEL OVER THE STRANDS UNCHANGED, OR THAT IS, OPTIMIZING THE FINAL RESIDUAL STEEL IN THE TUNDISH WHILE MAINTAINING THE SAME OPERATIONAL SAFETY CONDITION AND PROCESS QUALITY. IN VIEW OF THE IMPLEMENTED IMPROVEMENTS, THE NEED ARISES TO REVISED THE CASTING SPEED REDUCTION CURVES FOR THE EMPTYING OF STEEL IN THE TUNDISH AND CLOSING OR NOT OF THE STRANDS, GIVEN OF THE SEQUENCE END OR TUNDISH EXCHANGE, IN ORDER TO READJUST THE PROCESS TO THE DEVELOPMENT OF THE REFRACTORY PROFILE OF "RAISED BOTTOM" TO MEET THE NEW GOAL OF THE AMOUT OF REMAINING STEEL IN THE DISTRIBUTOR (TUNDISH SKULL) ESTABLISHED IN VIEW OF THE PROPOSED IMPROVEMENT.

AT COMPANHIA SIDERúRGICA DO PECéM (CSP), IN MID-2021, THE MARK OF IMPLEMENTATION OF THE NEW REFRACTORY PROFILE ON THE SOLE OF CONTINUOUS CASTING TUNDISH WAS REACHED BY MORE THAN 90%, CALLED "RAISED BOTTOM" WITH REFERENCE TO YES® TECHNOLOGY (YIELD ENHANCEMENT SYSTEM), WHICH AIMS TO REDUCE THE AMOUNT OF THE REMAINING STEEL IN TUNDISH (TUNDISH SKULL) AT THE END OF THE CONTINUOUS CASTING PROCESS, EQUIVALENTLY REPLACING THE REMAINING STEEL VOLUME WITH REFRACTORY MATERIAL, THUS KEEPING THE HEIGHT OF THE FINAL COLUMN OF LIQUID STEEL OVER THE STRANDS UNCHANGED, OR THAT IS, OPTIMIZING THE FINAL RESIDUAL STEEL IN THE TUNDISH WHILE MAINTAINING THE SAME OPERATIONAL SAFETY CONDITION AND PROCESS QUALITY. IN VIEW OF THE IMPLEMENTED IMPROVEMENTS, THE NEED ARISES TO REVISED THE CASTING SPEED REDUCTION CURVES FOR THE EMPTYING OF STEEL IN THE TUNDISH AND CLOSING OR NOT OF THE STRANDS, GIVEN OF THE SEQUENCE END OR TUNDISH EXCHANGE, IN ORDER TO READJUST THE PROCESS TO THE DEVELOPMENT OF THE REFRACTORY PROFILE OF "RAISED BOTTOM" TO MEET THE NEW GOAL OF THE AMOUT OF REMAINING STEEL IN THE DISTRIBUTOR (TUNDISH SKULL) ESTABLISHED IN VIEW OF THE PROPOSED IMPROVEMENT.

Palavras-chave

Continuous casting; emptying of steel; tundish; refractory.

Continuous casting; emptying of steel; tundish; refractory.