REMOVAL OF ALKALIS FROM BLAST-FURNACES

Citation
Hw. Gudenau et al., REMOVAL OF ALKALIS FROM BLAST-FURNACES, Stahl und Eisen, 116(9), 1996, pp. 89
Citations number
25
Categorie Soggetti
Metallurgy & Metallurigical Engineering
Journal title
ISSN journal
03404803
Volume
116
Issue
9
Year of publication
1996
Database
ISI
SICI code
0340-4803(1996)116:9<89:ROAFB>2.0.ZU;2-R
Abstract
Laboratory experiments are being undertaken to examine what influence is exerted on the removal of alkalies and sulphur from blast furnaces by charging a burden of slightly reduced basicity and by simultaneousl y injecting fluxes through the tuyeres. Just a small shift in the inpu t of fluxes from the furnace top to the tuyere level (20 kg/t HM) can both appreciably increase the removal of alkalies with the slag and im prove the desulphurisation. Such a mode of furnace operation appears s uitable to reduce the discharge of alkalies via the blast furnace top gas RE-HM and, at the same time, to attenuate the negative influences of alkalies on furnace operation.