Análise de planta de cominuição de calcário, basalto e argila da mineração calcário cruzeiro

Abstract

The unit operations of any mining sector are indispensable in terms of the productive contribution to a mine, however, one of the points that also have a direct influence on the exploitation process of an ore in terms of product cost and value is the comminuting of the product itself. Therefore, a crushing and/or grinding plant actively participates in the value generation to the ore. Given that, the purpose of this work is to describe, in details, the processes and equipment that are used in the four mining company Calcário Cruzeiro comminution plants that produce mineral aggregate from basalt, agricultural limestone and clay for ceramic tiles, to understand the complete structure as well as the machinery functioning as far as each plant schematic organization and equipment are concerned. Visits to the studied company, along with researches on the mineral product fragmentation theoretical referential, supported by analysis of Maquinas Furlan Ltda. machinery instruction manuals, were used in the development of product flowcharts and in the description of used by the company in the ore comminuting processes. As a result, certain ore distributors were identified as a notable feature for the production chain in the search of operation and installation cost savings. Therefore, fragmentation is an onerous stage in a plant due to high energy consumption, so, knowledge of the adopted process, information on the characteristics of both equipment and ore are all of paramount importance to support the business economic outcome.