Method for operating a smelting furnace installation

A method for operating a smelting furnace installation, in particular a blast furnace installation, the method comprising - feeding coke, iron oxide containing material and if required fluxing agents to the top of the smelting furnace, - injecting a first reducing gas containing hydrogen at a tuyere...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	DELIKONSTANTIS, EVANGELOS, BANIASADI, MEHDI, DIDELON, FERNAND, JI, JIHONG, KINZEL, KLAUS PETER
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING CHEMISTRY FURNACES FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL HEATING KILNS LIGHTING MANUFACTURE OF IRON OR STEEL MECHANICAL ENGINEERING METALLURGY METALLURGY OF IRON OPEN SINTERING OR LIKE APPARATUS OVENS PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL RETORTS TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS WEAPONS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A method for operating a smelting furnace installation, in particular a blast furnace installation, the method comprising - feeding coke, iron oxide containing material and if required fluxing agents to the top of the smelting furnace, - injecting a first reducing gas containing hydrogen at a tuyere level of the smelting furnace at a temperature above 1600 DEG C, and - injecting a second reducing gas at a lower shaft level of the smelting furnace, wherein coke is fed at a lump coke rate below 220 kg/t HM, preferably below 200 kg/t HM and more preferably below 180 kg/t HM and wherein the density of the first reducing gas is below 0.80 kg/Nm3, preferably below 0.60 kg/Nm3 and most preferably below 0.30 kg/Nm3.