Title

IMPROVING THE PERFORMANCE OF AN ARGON PLUG IN AN ELECTRIC ARC FURNACE MELTSHOP

IMPROVING THE PERFORMANCE OF AN ARGON PLUG IN AN ELECTRIC ARC FURNACE MELTSHOP

Authorship

NASCIMENTO, VINICIUS FRANCO DO; ALVES, TULIO DA SILVA; FERREIRA, EDER JOSÉ; PINHEIRO, BRUNO CORREIA; SILVA, JONATHAN AMARAL IZIDORO; MECÂNICO, ÂNGELO LEANDRO PAIVA_; ARAUJO, EVERALDO MARTINS; BARBOSA, WILSON

NASCIMENTO, VINICIUS FRANCO DO

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ALVES, TULIO DA SILVA

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FERREIRA, EDER JOSÉ

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PINHEIRO, BRUNO CORREIA

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SILVA, JONATHAN AMARAL IZIDORO

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MECÂNICO, ÂNGELO LEANDRO PAIVA_

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ARAUJO, EVERALDO MARTINS

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BARBOSA, WILSON

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DOI

10.5151/2594-5300-40854

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Abstract

THIS STUDY INVESTIGATES THE IMPROVEMENT OF ARGON PLUG PERFORMANCE IN AN ELECTRIC ARC FURNACE (EAF) STEELSHOP. THE EVALUATION COMPARES THREE PURGING PLUG DESIGNS: A STANDARD SLOTTED PLUG (PQ16424), A PLUG DESIGNED FOR BETTER THERMAL SHOCK RESISTANCE (PQ21507 WITH CASTABLE 3926), AND A NEW DESIGN WITH A REINFORCED MATRIX FOR SLAG RESISTANCE (TS3926). LABORATORY TESTS SHOWED THAT TS3926 OFFERED SUPERIOR THERMAL SHOCK RESISTANCE AND A LOWER TEMPERATURE DELTA. FIELD TRIALS WITH PQ21507 DEMONSTRATED A 35% REDUCTION IN EROSION RATE COMPARED TO THE STANDARD PLUG. ADDITIONALLY, THE PLUGS EXHIBITED MINIMAL CRACKING AND EXTENDED SERVICE LIFE, ALLOWING OPERATORS TO SAFELY UTILIZE THEM UNTIL A LOWER OPERATIONAL LIMIT. THESE FINDINGS HIGHLIGHT THE EFFECTIVENESS OF MATERIAL SELECTION AND DESIGN OPTIMIZATION IN ENHANCING ARGON PLUG PERFORMANCE AND PROMOTING SAFETY IN EAF STEELMAKING

THIS STUDY INVESTIGATES THE IMPROVEMENT OF ARGON PLUG PERFORMANCE IN AN ELECTRIC ARC FURNACE (EAF) STEELSHOP. THE EVALUATION COMPARES THREE PURGING PLUG DESIGNS: A STANDARD SLOTTED PLUG (PQ16424), A PLUG DESIGNED FOR BETTER THERMAL SHOCK RESISTANCE (PQ21507 WITH CASTABLE 3926), AND A NEW DESIGN WITH A REINFORCED MATRIX FOR SLAG RESISTANCE (TS3926). LABORATORY TESTS SHOWED THAT TS3926 OFFERED SUPERIOR THERMAL SHOCK RESISTANCE AND A LOWER TEMPERATURE DELTA. FIELD TRIALS WITH PQ21507 DEMONSTRATED A 35% REDUCTION IN EROSION RATE COMPARED TO THE STANDARD PLUG. ADDITIONALLY, THE PLUGS EXHIBITED MINIMAL CRACKING AND EXTENDED SERVICE LIFE, ALLOWING OPERATORS TO SAFELY UTILIZE THEM UNTIL A LOWER OPERATIONAL LIMIT. THESE FINDINGS HIGHLIGHT THE EFFECTIVENESS OF MATERIAL SELECTION AND DESIGN OPTIMIZATION IN ENHANCING ARGON PLUG PERFORMANCE AND PROMOTING SAFETY IN EAF STEELMAKING

Keywords

Argon plug, Electric arc furnace (EAF), Steelmaking, Thermal shock resistance, Erosion resistance

Argon plug, Electric arc furnace (EAF), Steelmaking, Thermal shock resistance, Erosion resistance.