Title

EFFECT OF BOTTOM LEVEL VARIATIONS OVER LANCE LEAKAGE AND RISK OF WATER INSIDE CONVERTER

EFFECT OF BOTTOM LEVEL VARIATIONS OVER LANCE LEAKAGE AND RISK OF WATER INSIDE CONVERTER

Authorship

SANTOS, JOÃO PAULO MAFORTE; MAIA, BRENO TOTTI; KNEGT, FERNANDO VICTOR DE; ALMEIDA, ERIC NOVAES DE; ANDRADE, WELLINGTON MORAIS; FERNANDES, ISABELA CRISTINA BARBOSA; FILHO, AMILTON CARLOS PINHEIRO CARDOSO

SANTOS, JOÃO PAULO MAFORTE

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MAIA, BRENO TOTTI

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KNEGT, FERNANDO VICTOR DE

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ALMEIDA, ERIC NOVAES DE

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ANDRADE, WELLINGTON MORAIS

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FERNANDES, ISABELA CRISTINA BARBOSA

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FILHO, AMILTON CARLOS PINHEIRO CARDOSO

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DOI

10.5151/2594-5300-41078

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Abstract

OXYGEN CONVERTERS HAVE PROGRAMS TO DETERMINE LANCE-TO-BATH HEIGHT (DBL) FROM REFERENCE MEASUREMENTS OF THE BOTTOM AND BATH LEVELS. THESE REFERENCES ARE LENGTH MEASUREMENTS THAT REPRESENT A VOLUME. HOWEVER, THEY ARE PUNCTUAL AND GENERALLY TAKEN AS A REFERENCE TO THE CENTER OF THE CONVERTER. THIS ARTICLE INVESTIGATES THE EFFECT OF THE UNEVEN RISE OF THE BOF BOTTOM ON LANCE LEAKAGE. THE RESULTS SHOW THAT NON-UNIFORM BOTTOM ELEVATION IS THE CAUSE OF PREMATURE LANCE LEAKAGE AND SUGGESTS SOME COUNTERMEASURE ACTIONS.

OXYGEN CONVERTERS HAVE PROGRAMS TO DETERMINE LANCE-TO-BATH HEIGHT (DBL) FROM REFERENCE MEASUREMENTS OF THE BOTTOM AND BATH LEVELS. THESE REFERENCES ARE LENGTH MEASUREMENTS THAT REPRESENT A VOLUME. HOWEVER, THEY ARE PUNCTUAL AND GENERALLY TAKEN AS A REFERENCE TO THE CENTER OF THE CONVERTER. THIS ARTICLE INVESTIGATES THE EFFECT OF THE UNEVEN RISE OF THE BOF BOTTOM ON LANCE LEAKAGE. THE RESULTS SHOW THAT NON-UNIFORM BOTTOM ELEVATION IS THE CAUSE OF PREMATURE LANCE LEAKAGE AND SUGGESTS SOME COUNTERMEASURE ACTIONS

Keywords

BOF, Cartridge, bottom build up, tuyere control, water leakage

BOF, Cartridge, bottom build up, tuyere control, water leakage.