Stabilization of lining elements of the working zone of open-hearth furnaces

Stabilization of lining elements of the working zone of open-hearth furnaces Various factors affecting the stability of lining elements of the working zone of the open-hearth furnaces at the Azovstal' Works are studied. The main reasons for damage to the open-hearth furnace tanks are deterioration of the quality (high content of SiO2 and CaO) of magnesite powders (Satkinskoe deposit) and exclusion of the high-phosphorus cast iron from the conversion process. Damage to the weld bead and charging layer results from formation and modifying transformations of bicalcium silicate. The improvement of the maintenance procedure, production of new bottoms, and charging of the working zone of the open-hearth furnace with magnesite powders imported from Slovakia (the special chemical composition of these powders prevents formation of bicalcium silicate) adopted at the Azovstal' Works make it possible to increase the stability of the lining, substantially decrease the magnesite powder consumption, and reduce the labor input and time for maintenance. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Refractories and Industrial Ceramics Springer Journals

Stabilization of lining elements of the working zone of open-hearth furnaces

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Publisher
Springer US
Copyright
Copyright © 1997 by Plenum Publishing Corporation
Subject
Chemistry; Characterization and Evaluation of Materials; Materials Science; Ceramics, Glass, Composites, Natural Methods
ISSN
1083-4877
eISSN
1573-9139
D.O.I.
10.1007/BF02767850
Publisher site
See Article on Publisher Site

Abstract

Various factors affecting the stability of lining elements of the working zone of the open-hearth furnaces at the Azovstal' Works are studied. The main reasons for damage to the open-hearth furnace tanks are deterioration of the quality (high content of SiO2 and CaO) of magnesite powders (Satkinskoe deposit) and exclusion of the high-phosphorus cast iron from the conversion process. Damage to the weld bead and charging layer results from formation and modifying transformations of bicalcium silicate. The improvement of the maintenance procedure, production of new bottoms, and charging of the working zone of the open-hearth furnace with magnesite powders imported from Slovakia (the special chemical composition of these powders prevents formation of bicalcium silicate) adopted at the Azovstal' Works make it possible to increase the stability of the lining, substantially decrease the magnesite powder consumption, and reduce the labor input and time for maintenance.

Journal

Refractories and Industrial CeramicsSpringer Journals

Published: Nov 26, 2007

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