Abstract
This paper presents a method for calculating the basic parameters of the gas jet (average temperature and power) at a certain distance from the nozzle exit in the technology implementation of blowing molten slag on the refractory lining of the converter. The mathematical model has been worked out and the fl ow parameters of the supersonic noncalculated jet, considering joining in the working volume of 350-t converter not only gas but also slag particles, have been calculated. Average weight values of temperature and velocity over the length of the gas jet have been obtained. The effect of the added slag mass on the added mass of gas, the temperature of the gas jet and its rate subject to the changes in the fl ow of nitrogen through the nozzle and the relative temperature in the working space of the converter has been established. The analysis of the results of numerical calculations has showed that the slag ejection changes signifi cantly the picture of the interaction of ternary supersonic noncalculated jet with the melt, at the same time even a slight attachment of slag to the gas fl ow promotes noticeable decrease of the propagation velocity of the jet.
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Schedule a callMore From: Izvestiya Visshikh Uchebnykh Zavedenii. Chernaya Metallurgiya = Izvestiya. Ferrous Metallurgy
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