Aplicação da metodologia DMAIC à gestão de processo de ventilação de mina

Abstract

Brazilian mining has historically played an important role in economic cycles, with a direct correlation in the participation of the Brazilian gross domestic product (GDP) over the centuries. However, in recessions and with reduced price scenarios, it is essential to improve processes, to seek lower costs involved, making management concepts, operational excellence an integral part of the corporate organizational culture. This change in philosophy has become essential for survival and is due to the fact of the complexity of the operations, which convey the concept of zero waste. The dissertation has as premise and objective to present solutions based on continuous improvement, low effort, high impact on actions, low investment. All opportunities will be carried out in an underground mine linked to the infrastructure sector and specifically mine ventilation. Opportunities for the application of continuous improvement of mine ventilation were researched, based on good practices and market research, based on the DMAIC methodology (Definition-Measurement-Analysis-Action-Control), seeking results with less waste, increased production and reduced operating costs. Focus will be given to the mine ventilation sector, where qualitative and quantitative losses will be analyzed that generate temperature increases in specific mining panels, resulting in interruptions in the mine operation and thermal discomfort for operators on the fronts. In addition to procedural improvements, it will seek simulations with the use of software that allow greater air optimization (m³ / s) for the mining fronts. The intention is to include these improvements, to reduce the impact of hours stopped by temperature in mining panels and to increase production in the mine.