ISSN -
11th International Rolling Conference (IRC 2019) — vol. 11, num.11 (2019)
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Resumo
The energy efficiency of reheating furnaces is a continuous challenge, as these equipment consume a representative portion of the total fuel of an integrated steel plant. Therefore, any investigation and implementation which brings improvement in this figure become an important issue for the mill competitiveness. In the case of production delays due to external factors (the condition addressed in this work), whether predicted or unforeseen, the slabs remain inside the furnace with high temperatures in order to avoid production delay during the production restart, elevating the specific consumption and scale formation. This work increased the energy efficiency of the two ArcelorMittal Tubarão’s walking beam reheating furnaces, by reducing the consumption of mixed gas during production delays (either scheduled or not) lasting less than 3 hours. The objectives were achieved through improvements, among them, tuning of Level 2 automation system parameters, automatization of procedures and operational training. The work resulted in a 34.4% fuel gas consumption reduction during the delays.
Palavras-chave
Energy Efficiency; Reheating Furnace; production delay
Como citar
Rampinelli, Vinicius Thiago Lecco;
Moreira, Lara de Assis;
Novais, Eduardo Judice de.
ENERGY EFFICIENCY INCREASING IN SLAB REHEATING FURNACE OF A STEEL PLANT
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p. 900-906.
In: 11th International Rolling Conference (IRC 2019),
São Paulo,
2019.
ISSN: -
, DOI 10.5151/9785-9785-32479
