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Metallurgist
Published in: Metallurgist 3-4/2014

01-07-2014

Use of the Blast Furnaces at Krivorozhstal to Illustrate the Prospects of Blast-Furnace Smelting and Certain Aspects of its Current State*

Authors: E. G. Donskov, V. P. Lyalyuk, A. D. Donskov

Published in: Metallurgist | Issue 3-4/2014

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Abstract

Many years of use of high pressure and oxygen enrichment of the blast to intensify blast-furnace smelting have shown that the main reason these measures are not very effective and are sometimes even harmful is that the wind rate is reduced when they are used together. In essence, the oxygen that is already present in the blast air is replaced by expensive technical oxygen. The article explores the reasons that this situation exists. It is shown that the problem of increasing the oxygen content of the blast – which is the only direct goal of using intensifiers – is more simply and more cheaply solved by reducing the resistance of the air-blower–blast furnace–gas-cleaning equipment system to the blast that is supplied to the furnace. In particular, more oxygen can be delivered to the furnace via the blast by increasing the number of tuyeres and/or increasing the tuyeres’ diameter.
previous article Developing a Technology for Recycling Automotive Exhaust-Gas Catalysts
next article Study of the Effect of Ingot Geometry on its Solidification Features Based on Cold Simulation. Part III*

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Metadata
Title
Use of the Blast Furnaces at Krivorozhstal to Illustrate the Prospects of Blast-Furnace Smelting and Certain Aspects of its Current State*
Authors
E. G. Donskov
V. P. Lyalyuk
A. D. Donskov
Publication date
01-07-2014
Publisher
Springer US
Published in
Metallurgist / Issue 3-4/2014
Print ISSN: 0026-0894
Electronic ISSN: 1573-8892
DOI
https://doi.org/10.1007/s11015-014-9898-y

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