Study of the influence of Sinter Feed iron ore humidity on water flow in a bench tower with vertical drainage Marcelo Augusto Valeriano Bogsan, Augusto Cesar Andrini, Vitor Palmarin Oliveira Santos, Deovaldo de Moraes Junior, Vitor da Silva Rosa, Felipe Bertelli

Abstract

 The transport of iron ore made in gondola-type wagons is characterized by having an upper opening that allows the entry of water during rainy periods. This factor is a technological challenge to be met by adding drains that allow the percolation and flow of free water formed on the transported material, which tend to clog routinely. The present work presents the results obtained in an experimental bench developed to evaluate the effect of two distinct geometric configurations of drains printed in ABS (Acrylonitrile Butadiene Styrene), one with a straight opening and the other trapezoidal, as well as the effect of the mass concentration of ore and water at the beginning of the experiment. It is observed that for higher water mass concentrations at the beginning of the experiment, the adhesion between particles decreases the flow dynamics, leading to a longer time for percolation and drainage of the added water column. Trapezoidal drains had lower flow efficiency compared to straight drains.