Estudo comparativo entre equipamentos de carregamento e transporte de pequeno e grande porte para exaustão de cava em Carajás - PA

Abstract

Mine planning involves several stages, one of them, the measure of the loading and haulage equipment. This stage is extremely important, because its incorrect implementation can derail a mining project, since the loading and haulage costs represent a considerable share in total operating costs of a mine. It is important to consider alternative strategies of planning and scenarios options for mining, according to the scenario suggested, the type of loading and haulage equipment may vary, due to parameters such as width and inclination of the transport paths. Thus, this paper’s came from an analysis of scenarios for the exhaustion of a pit, located in the Northeast portion of the Complex of Carajás-Pará, with the purpose of comparing loading and haulage equipment of large and small for such exhaustion. It was be considered two scenarios that differ in the width of its ramps and handling ore and waste, but also in charge of its equipment. This comparison, performed by measure for each type of fleet and estimated its cost of ownership and operational, brought favorable results to the exhaustion of the pit using smaller equipment, influenced by the reduction in the handling of waste, according to the mine scenario in question.