Melhoria da produtividade em uma mineração de calcário

Abstract

Productivity in the sector of soil corrective minerals (limestone) is fundamental in the quest for operational excellence and for the quality of the final product. Mining companies. In this context, the present work had the objective of prosing proposing alternatives to improve the productivity of a limestone millstone in Ponta Grossa-Pr. The study involves the production sector of the plant that identified the low productivity in limestone production. Tools such as OEE, Pareto Chart, 5W2H were used to identify the causes that generate low productivity and to verify the of production equipment failures. The research classification was characterized as case study, with applied, quantitative and qualitative, exploratory research. The production process analyzed included several aspects such as downtime, productive quantity, equipment performance, and reasons for stoppages. As a result, it was found that the proposal elaborated through the data collected and with the inserted tools allowed directing actions to increase the production of the material. A Pareto chart was constructed with the main of stopping in the production line to direct improvement actions to increase productivity. The conclusion of the study shows that the main reasons that affect the productivity of the analyzed system, according to the reasons given in the OEE and Pareto are excessive corrective maintenance of equipment, problems with changing hammer and gratings and rainfall in the place. A 5W2H was created as an action plan to affect the improvement of productivity in the limestone production system.