Dimensionamento e instalação de tubo Venturi para analisadores degás

Abstract

The need for improvements in the gas analysis system arises from theconstant increase in liquid steel production coupled with the need to reduce the time interval between production runs and resource savings in the process. In this context, the implementation of a Venturi type tube in the recovery system, as well as the analysis of the gases coming from the converters of a steel plant is essential to obtain better results, since the reduction of the time interval between runs, That the volume of recovered gases is adequate. It was defined by the use of a Venturi tube to produce a negative pressure, which contributes to the entrainment of the gases into the analysis system and, at the same time, to act as a primary element for measuring the gas flow. It was analyzed from the instrumentation and control system of the exhaust system of the converter of the steelworks, the loading of the pig iron in the blast furnaces, to the leakage of the raw material converted into liquid steel. The results obtained strengthen the claim to reduce the oxygen contamination in the gas meters, besides potentiating the speed in the recovery commands, guaranteeing greater volume in the gas regeneration.