ISSN 2594-357X
50° Seminário de Redução de Minérios e Matérias-primas — vol. 50, num.50 (2022)
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Abstract
THE HOT METAL PHOSPHORUS CONTENT IS CONSTANTLY MONITORED BY COMPANIES DUE TO ITS IMPACT ON THE STEEL MANUFACTURE. IT IS KNOWN THAT INSIDE THE BLAST FURNACE, A LARGE PART OF THIS ELEMENT IS INCORPORATED INTO THE HOT METAL. AT USIMINAS IPATINGA PLANT, TWO OF ITS BLAST FURNACES ARE SIMILAR IN TERMS OF DESIGN, BUT HAVE HAD DIFFERENT OPERATING CONDITIONS DUE TO THE REPAIR CARRIED OUT IN ONE OF THEM IN 2018. IN THIS CONTEXT, A GLOBAL ANALYSIS OF THE PROCESS WAS CARRIED OUT TO CHECK FOR POSSIBLE OPERATIONAL CORRELATIONS THAT JUSTIFIED THE DIFFERENCE IN THE HOT METAL PHOSPHORUS INCORPORATION FROM THESE REACTORS. THE RESULTS INDICATED THAT, IN ADDITION TO PRODUCTIVITY, THE VARIABLES RELATED TO THE THERMAL CONTROL OF THE PROCESS (COKE CONSUMPTION, PULVERIZED COAL INJECTION, OXYGEN ENRICHMENT AND BLOWN AIR TEMPERATURE) HAD GREATER WEIGHT IN THE DATA VARIABILITY. THERE WAS IDENTIFIED GREATER PHOSPHORUS INCORPORATION IN THE HOT METAL FOR THE MOST EFFICIENT EQUIPMENT.
THE HOT METAL PHOSPHORUS CONTENT IS CONSTANTLY MONITORED BY COMPANIES DUE TO ITS IMPACT ON THE STEEL MANUFACTURE. IT IS KNOWN THAT INSIDE THE BLAST FURNACE, A LARGE PART OF THIS ELEMENT IS INCORPORATED INTO THE HOT METAL. AT USIMINAS IPATINGA PLANT, TWO OF ITS BLAST FURNACES ARE SIMILAR IN TERMS OF DESIGN, BUT HAVE HAD DIFFERENT OPERATING CONDITIONS DUE TO THE REPAIR CARRIED OUT IN ONE OF THEM IN 2018. IN THIS CONTEXT, A GLOBAL ANALYSIS OF THE PROCESS WAS CARRIED OUT TO CHECK FOR POSSIBLE OPERATIONAL CORRELATIONS THAT JUSTIFIED THE DIFFERENCE IN THE HOT METAL PHOSPHORUS INCORPORATION FROM THESE REACTORS. THE RESULTS INDICATED THAT, IN ADDITION TO PRODUCTIVITY, THE VARIABLES RELATED TO THE THERMAL CONTROL OF THE PROCESS (COKE CONSUMPTION, PULVERIZED COAL INJECTION, OXYGEN ENRICHMENT AND BLOWN AIR TEMPERATURE) HAD GREATER WEIGHT IN THE DATA VARIABILITY. THERE WAS IDENTIFIED GREATER PHOSPHORUS INCORPORATION IN THE HOT METAL FOR THE MOST EFFICIENT EQUIPMENT.
Keywords
Blast Furnace; Phosphorus; Hot metal.
Blast Furnace; Phosphorus; Hot metal.
How to refer
Gandra, Beatriz Fausta;
Barbosa, Alexandre Alves;
Silva, Alexandre Medeiros.
PHOSPHORUS BEHAVIOR IN BLAST FURNACES WITH DIFFERENT THERMODYNAMIC CONDITIONS
,
p. 104-116.
In: 50° Seminário de Redução de Minérios e Matérias-primas,
São Paulo,
2022.
ISSN: 2594-357X
, DOI 10.5151/2594-357X-34288
