Análise da etapa de cominuição do projeto Vargem Grande Itabiritos

Abstract

This job begins with a general description of the process of production of 10 MTPA of "Pellet Feed" in the beneficiation plant ITM Project I VGR. Then is calculated dimensioning of the stages of comminution, from primary crushing, passing through secondary crushing, tertiary crushing, quaternary crushing and reaching the primary and secondary mills, which constitute the last stage of comminution. The calculated results, considering the equipment that were acquired for the project, show that the equipment related to the stages of crushing, primary and secondary grinding attend to the production levels required by the project. When considering the alternative single-stage grinding closed circuit to replace the grinding in two stages, it is found that there is enough power to increase production during grinding.