Processo de planejamento e programação de manutenção em uma empresa de mineração em São Luís do Maranhão: estudo de caso

Abstract

The planning and programming of major maintenance or general reviews (Major Overhaul) aims to identify needs, coordinate activities and plan resources. Detailed and efficient planning provides compliance with the deadlines and optimal maintenance criteria allowing the equipment to be maintained with minimal incident or accidents, thus avoiding the occurrence of large operational and financial losses for the entire plant. Thus, the present work was structured in the type of exploratory research that aimed to understand the standardization of planning and scheduling processes of a large maintenance stop of the bauxite mill that is inserted in the Bayer process, alumina's production process, using a planning and control tool. It sought to carry out preliminary studies, aiming at structuring the context. The results obtained from the development of this work affirm that project management to obtain control over maintenance is the best way to improve and quality, once effectively performed, maximizes the reliability and predictability of prevention and correction actions, safety, as well as the resources necessary for the execution of these actions. Another factor of great importance is the gains from mappings and controls, whether from planning deliveries, resources and documentation. Thus, from the development of this research it was possible to collect a set of lessons learned to be used in the next major industrial maintenance stops, as wellix as the opportunities difficulties in performing pre-stop activities of the equipment, occurring some delays and also the inclusion of some activities and improvements during the project.