METHOD FOR BLAST-FURNACE SMELTING ON MAGNESIA-ALUMINOUS SLAGS

FIELD: technological processes; metallurgy. ^ SUBSTANCE: invention is related to ferrous metallurgy and may be used in blast-furnace production. Method for smelting on magnesia-aluminous slags with content of Al2O3 and MgO from 5 to 20% of each component includes charge loading, insufflation of high...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	GIL'MANOV MARAT RIMATOVICH, KUSHNAREV ALEKSEJ VLADISLAVOVICH, BOBROV VLADIMIR PAVLOVICH, SUKHAREV ANATOLIJ GRIGOR'EVICH
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	CHEMISTRY MANUFACTURE OF IRON OR STEEL METALLURGY METALLURGY OF IRON
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	FIELD: technological processes; metallurgy. ^ SUBSTANCE: invention is related to ferrous metallurgy and may be used in blast-furnace production. Method for smelting on magnesia-aluminous slags with content of Al2O3 and MgO from 5 to 20% of each component includes charge loading, insufflation of high-temperature combined blast with application of aluminous and magnesia additives. Iron-ore charge is formed with silicon module SiO2/Al2O3 within the limits of 2.2-2.5 and with magnesia index of MgO/(CaO+MgO) within the limits of 0.30-0.35, and as a result low-sulfury cast iron is produced with lowered basicity of slag CaO/SiO2, equal to 0.78-0.92. ^ EFFECT: higher castable and sulfur-absorbing capacity of slag at its reduced basicity. ^ 2 tbl