Efeito de inserts no padrão de fluxo e vazão mássica em silos verticais.

Abstract

Problems related to the silo, such as the formation of cohesive arcs and interruption of the silo discharge, cause total or partial unloading. One possibility to avoid problems related to the flow is to try to promote the mass flow by adapting the hopper with specific inserts. Thus, it aimed to analyze the influence of inserts in the flow pattern in a slender vertical silo, for storage of corn flour, using different heights in instant tests and tests stored for a period of 24 hours. The flow properties and flow characterization experiments were determined at the Laboratory of Rural Constructions and Ambience - LACRA, belonging to the Federal University of Campina Grande, Campina Grande - PB, from July to November 2018. It was concluded that the pattern the predominant flow for the product under study was the funnel flow, which can be mixed in some moments; with respect to the height where the insert was fixed, the location 0.35m away from the discharge orifice, that is, height 1, was the one that presented the best values when related to the mass flow of unloading corn flour.