Per: Luiz Carlos Teixeira Brandão (Arcelormittal), Deilson Soares da Silva (arcelormittal), Fabiano Cristeli de Andrade (arcelormittal), Leonardo Francisco Berçot (arcelormittal), Rodrigo Pinheiro Leão (arcelormittal), Rui Carlos Malta Magalhães (arcelormittal), Tamires Guimarães Lima (arcelormittal), Thiago Publio Rocha Teixeira (arcelormittal), jorge luiz de souza taveira (arcelormittal), davi ezequiel nunes da silva (arcelormittal)
Abstract:
The Service Life Extension (SLE) project, started in 2013, is a strategy adopted by ArcelorMittal Monlevade, with the goal of extending the Blast Furnace A campaign through careful actions, with emphasis on: critical equipment for the operation, planning and execution of their repair, monitoring and temporary inspections in different components, implementation of new equipment and instrumentation, aiming greater control and operational robustness, among others. The start-up of Blast Furnace A took place in 1999, with a 15-years planned initial campaign. Currently, its complete repair is scheduled for 2027, when it will total 28 years of operation. Among the main justifications for this result are: Rigorous raw materials quality control, culture of operational excellence and process control, proper maintenance of equipment and implementation of the SLE project. The creation of the SLE has so far brought significant gains for the steelmaker by: Postponing the complete repair of Blast Furnace A, increasing control and monitoring of the main equipment, generating greater personnel and operational safety, avoiding unscheduled downtime, which impacts positively on operational stability and consequently on the hot metal cost of production and quality, thus improving the company's efficiency, productivity, and competitiveness.
