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MODERNIZATION OF ARCELORMITTAL TUBARÃO CONTINUOUS SLAB CASTER MACHINE #2

MODERNIZATION OF ARCELORMITTAL TUBARÃO CONTINUOUS SLAB CASTER MACHINE #2

Autoria

Ruy, Demetrius Da Rós

DOI

10.5151/2594-5300-34415

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Resumo

AS PART OF THE PROGRESSIVE RENOVATION PROJECT OF THE STEEL PLANT FACILITIES, ARCELOR MITTAL TUBARãO HAS DECIDED TO PROCEED WITH THE REVAMP OF CCM#2 SLAB CASTER IN VITORIA (BRAZIL), AIMING TO IMPROVE SLAB QUALITY, INCREASE PRODUCTIVITY AND WIDENING AT THE SAME TIME THE PRODUCT PORTFOLIO. FOCUSED ON UPDATING PROCESS AND OPERATION CONTROL WITH THE FULL SET OF THE ADVANCED UP-TO-DATE Q-TECHNOLOGICAL PACKAGES BY DANIELI AUTOMATION. SCOPE OF WORK HAS BEEN THE COMPLETE RENOVATION OF THE CASTER, WITH ADVANCED MOULD (EQUIPPED BY Q-WIDTH MODEL) AND OSCILLATOR, “TIGHT ROLL PITCH” SEGMENTS FOR DSR APPLICATION DRIVEN BY Q-CORE MODEL, FINE AND FLEXIBLE CONTROL OF SLAB COOLING BY Q-COOL MODEL. THE CASTING FLOOR (LADLE TURRET AND TUNDISH) HAVE BEEN KEPT UNCHANGED AS WELL AS THE EVACUATION AREA PASS-LINE, WITH MODERNIZATION OF THE DOWNSTREAM SINGLE MACHINES. MOULD FLUID-DYNAMIC HAS BEEN DEEPLY STUDIED TOGETHER BOTH IN CFD AND WATER MODEL TEST. THE SUPERIOR QUALITY ON STRIP SURFACE IS CONFIRMING THE GOOD DESIGN FOR SENS AND ACHIEVEMENTS OF THE MOULD LEVEL CONTROL (Q-LEVEL+), SUPPORTED AS WELL BY IN SITE MEASUREMENTS OF MENISCUS BEHAVIOR. IN THE PRESENT PAPER ARE DESCRIBED THE RELEVANT STUDIES CARRIED OUT, THE ACHIEVEMENTS AND THE RESULTS FOR CCM#2 PERFORMANCES IN TERMS OF PRODUCTIVITY AND OPERATION, AS WELL AS PRODUCT QUALITY.

 

AS PART OF THE PROGRESSIVE RENOVATION PROJECT OF THE STEEL PLANT FACILITIES, ARCELOR MITTAL TUBARãO HAS DECIDED TO PROCEED WITH THE REVAMP OF CCM#2 SLAB CASTER IN VITORIA (BRAZIL), AIMING TO IMPROVE SLAB QUALITY, INCREASE PRODUCTIVITY AND WIDENING AT THE SAME TIME THE PRODUCT PORTFOLIO. FOCUSED ON UPDATING PROCESS AND OPERATION CONTROL WITH THE FULL SET OF THE ADVANCED UP-TO-DATE Q-TECHNOLOGICAL PACKAGES BY DANIELI AUTOMATION. SCOPE OF WORK HAS BEEN THE COMPLETE RENOVATION OF THE CASTER, WITH ADVANCED MOULD (EQUIPPED BY Q-WIDTH MODEL) AND OSCILLATOR, “TIGHT ROLL PITCH” SEGMENTS FOR DSR APPLICATION DRIVEN BY Q-CORE MODEL, FINE AND FLEXIBLE CONTROL OF SLAB COOLING BY Q-COOL MODEL. THE CASTING FLOOR (LADLE TURRET AND TUNDISH) HAVE BEEN KEPT UNCHANGED AS WELL AS THE EVACUATION AREA PASS-LINE, WITH MODERNIZATION OF THE DOWNSTREAM SINGLE MACHINES. MOULD FLUID-DYNAMIC HAS BEEN DEEPLY STUDIED TOGETHER BOTH IN CFD AND WATER MODEL TEST. THE SUPERIOR QUALITY ON STRIP SURFACE IS CONFIRMING THE GOOD DESIGN FOR SENS AND ACHIEVEMENTS OF THE MOULD LEVEL CONTROL (Q-LEVEL+), SUPPORTED AS WELL BY IN SITE MEASUREMENTS OF MENISCUS BEHAVIOR. IN THE PRESENT PAPER ARE DESCRIBED THE RELEVANT STUDIES CARRIED OUT, THE ACHIEVEMENTS AND THE RESULTS FOR CCM#2 PERFORMANCES IN TERMS OF PRODUCTIVITY AND OPERATION, AS WELL AS PRODUCT QUALITY.

Palavras-chave

Lingotamento Contínuo; Modernização; Dynamic Soft Reduction; Produtividade; qualidade interna

Continuous Slab Caster; Modernization; Dynamic Soft Reduction; Productivity; Internal Quality