VORREDUKTIONSOFEN VON EINER ANLAGE ZUR SCHMELZREDUKTION VON EISENERZ

The invention relates to a prereduction furnace of a smelting reduction facility of iron ore consisting of a fluidizing prereduction chamber installed at the upper part of the prereduction furnace into which iron ores are fed and prereduced, a gas blowing chamber installed at the lower part of the p...

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Bibliographische Detailangaben
Hauptverfasser:	MATSUO, MASAHIRO, KANATANI, GENJI, MINAMIWATARIDAO
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	BLASTING CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY FERROUS OR NON-FERROUS ALLOYS 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 PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS RETORTS THEIR RELEVANT APPARATUS TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WEAPONS
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Beschreibung
Zusammenfassung:	The invention relates to a prereduction furnace of a smelting reduction facility of iron ore consisting of a fluidizing prereduction chamber installed at the upper part of the prereduction furnace into which iron ores are fed and prereduced, a gas blowing chamber installed at the lower part of the prereduction furnace into which a reducing gas is fed, a distributor (12) installed between the fluidizing prereduction chamber and the gas blowing chamber, a first plurality of nozzles (13) passing through the distributor (12) for injecting said reducing gas in the blowing chamber into the prereduction chamber, a discharge pipe for discharging prereduced iron ores installed at a bottom center of the prereduction chamber extending through said distributor (12), in which a cooling fluid flows; at least two horizontally movable purging pipes (30) below the distributor (12), and a second plurality of nozzles (31) attached to the horizontally movable purging pipes (30) for injecting a purging gas to a bottom surface of the distributor (12).