Aplicação da engenharia da confiabilidade para concepção de novo projeto e recuperação das correntes de um resfriador de placas

Abstract

This monograph consists the application of Reliability Engineering for restoration of an important and extremely relevant asset for the ArcelorMittal Tubarão Slab Conditioning area. Project reengineering and chains of Slab Conditioning recovery procedures follow a suggestion of future work from an earlier monograph and demonstrate the feasibility of life continuity of an asset that, already presented as closed or with a proposal for complete replacement of the active. The Slab Cooler is one of the main Conditioning equipment in which the process of heat removal from the steel plates is carried out by pressurized water projection. The chains transport the Slabs into the Cooler. It currently has a high maintenance cost due to the need to replace segments and the low performance of the set. Depending on the conditions of the asset, there is an increase in the maintenance frequency which has impacted the production plan. The result of this work will present a new chain recovery process with the development of new partners focused on Reliability and reduction of maintenance costs. It is also proposed a new execution model to replace the chains and control the maintained segments.