ISSN 2594-357X
50° Seminário de Redução de Minérios e Matérias-primas — vol. 50, num.50 (2022)
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GERDAU’S BLAST FURNACE #1 OFF-GAS SYSTEM HAS EXPERIENCED CHALLENGES INCLUDING HIGH METAL LOSS, SIGNIFICANT BUILD-UP OF DUST CAUSED BY PROCESS ISSUES, AND LOCAL BUCKLING DAMAGE CAUSED BY HIGH TEMPERATURE EVENTS, DURING MORE THAN 30 YEARS OF OPERATION. FITNESS-FOR-SERVICE ASSESSMENT WAS PERFORMED TO DEVELOP MITIGATION STRATEGIES INCLUDING SHORT-TERM LOCAL REPAIRS THAT COULD BE DONE WITHOUT INTERRUPTING PRODUCTION, AS WELL AS LONG-TERM REPAIRS TO EXTEND THE CAMPAIGN LIFE TO THE NEXT PLANNED MAJOR MAINTENANCE SHUTDOWN. THESE STRATEGIES ARE PRESENTED IN THIS PAPER, AND INCLUDE INSTALLING EXTERNAL REINFORCEMENT AND REFRACTORY LINING, IMPLEMENTING OPERATIONAL CONTROLS, AND FOLLOWING A HEALTH MONITORING PLAN. REPAIRS WERE SUCCESSFULLY PERFORMED, AND THE OFF GAS SYSTEM WAS ABLE TO CONTINUE OPERATION, RESULTING IN MAJOR FINANCIAL BENEFITS AND IMPROVED SAFETY CONDITIONS
GERDAU’S BLAST FURNACE #1 OFF-GAS SYSTEM HAS EXPERIENCED CHALLENGES INCLUDING HIGH METAL LOSS, SIGNIFICANT BUILD-UP OF DUST CAUSED BY PROCESS ISSUES, AND LOCAL BUCKLING DAMAGE CAUSED BY HIGH TEMPERATURE EVENTS, DURING MORE THAN 30 YEARS OF OPERATION. FITNESS-FOR-SERVICE ASSESSMENT WAS PERFORMED TO DEVELOP MITIGATION STRATEGIES INCLUDING SHORT-TERM LOCAL REPAIRS THAT COULD BE DONE WITHOUT INTERRUPTING PRODUCTION, AS WELL AS LONG-TERM REPAIRS TO EXTEND THE CAMPAIGN LIFE TO THE NEXT PLANNED MAJOR MAINTENANCE SHUTDOWN. THESE STRATEGIES ARE PRESENTED IN THIS PAPER, AND INCLUDE INSTALLING EXTERNAL REINFORCEMENT AND REFRACTORY LINING, IMPLEMENTING OPERATIONAL CONTROLS, AND FOLLOWING A HEALTH MONITORING PLAN. REPAIRS WERE SUCCESSFULLY PERFORMED, AND THE OFF GAS SYSTEM WAS ABLE TO CONTINUE OPERATION, RESULTING IN MAJOR FINANCIAL BENEFITS AND IMPROVED SAFETY CONDITIONS
Palavras-chave
Blast Furnace; Downcomer; Fitness-for-Service; Campaign Life Extension
Blast Furnace; Downcomer; Fitness-for-Service; Campaign Life Extension
Como citar
Woude, Chad Van Der.
BLAST FURNACE OFF GAS SYSTEM INTEGRITY ASSESSMENT AND CAMPAIGN LIFE EXTENSION
,
p. 647-661.
In: 50° Seminário de Redução de Minérios e Matérias-primas,
São Paulo,
2022.
ISSN: 2594-357X
, DOI 10.5151/2594-357X-35076
