Report on laboratory research of power-efficient triple-nozzle tuyere oxygen lancing

Based on the analysis of the advantages and shortcomings of the oxygen-converter production in Ukraine with combined oxygen and neutral gas blowing, a new combined-blowing technology by a threelevel lance has been proposed, which privedes the prolongation of the converter lining stability and a more...

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Bibliographic Details
Main Authors: P. O. Yushkevich, L. S. Molchanov
Format: Article
Language:English
Published: Sumy State University 2017-06-01
Series:Журнал інженерних наук
Subjects:
Online Access:http://jes.sumdu.edu.ua/wp-content/uploads/2017/11/JES_2017_01_E1-E7.pdf
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Summary:Based on the analysis of the advantages and shortcomings of the oxygen-converter production in Ukraine with combined oxygen and neutral gas blowing, a new combined-blowing technology by a threelevel lance has been proposed, which privedes the prolongation of the converter lining stability and a more efficient post-combustion of the exhaust gases with the prevention of local wear of the lining and intensive scraping of the lance body and the unit mouth. During the laboratory-industrial working-out of the proposed technology it was established that, depending on the level of the slag-metallic emulsion, two main post-combustion modes can be distinguished. The post-combustion process must be organized in such a way that the torches are within a half-diameter area of the outlet CO stream that prevents the torch's effect on the converter lining.
ISSN:2312-2498
2414-9381