PREREDUCTION FURNACE OF A SMELTING REDUCTION FACILITY OF IRON ORE

PREREDUCTION FURNACE OF A SMELTING REDUCTION FACILITY OF IRON ORE

A prereduction furnace of a smelting reduction facility comprises a fluidizing prereduction chamber (6) in the upper part of the prereduction furnace wherein iron ores are fed and prereduced, a gas blowing chamber (7) installed in the lower part of the prereduction furnace wherein a reducing gas is...

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Hauptverfasser: SAKAE ARAKAWA, TATSURO ARIYAMA, YOSHIYUKI KITANO, SHINICHI ISOZAKI, HARUHITO TSUBOI, GENJI KANATANI, JIRO MASE, HITOSHI KAWATA
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
MANUFACTURE OF IRON OR STEEL
METALLURGY
METALLURGY OF IRON
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creator SAKAE ARAKAWA
TATSURO ARIYAMA
YOSHIYUKI KITANO
SHINICHI ISOZAKI
HARUHITO TSUBOI
GENJI KANATANI
JIRO MASE
HITOSHI KAWATA
description A prereduction furnace of a smelting reduction facility comprises a fluidizing prereduction chamber (6) in the upper part of the prereduction furnace wherein iron ores are fed and prereduced, a gas blowing chamber (7) installed in the lower part of the prereduction furnace wherein a reducing gas is fed, a distributor (8) for separating the fluidizing prereduction chamber from the blowing chamber, and a discharge pipe (14) for discharging the prereduced ore from the fluidizing prereduction chamber. The distributor includes a body (11) of refractory material, a metal plate (12) installed on the bottom of the body, nozzles (15) passing through the body and the metal plate, metallic pipes (16) inserted in the nozzles, and cooling pipes (17) connected to the metal plate. A metallic box may be installed below the metal plate for providing passages for letting a gas flow. A bottom plate may be installed spacedly below the metalplate, with nozzles passing therethrough. The distributor may comprise a rigid thick plate and a refractory layer thereon.
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subjects CHEMISTRY
MANUFACTURE OF IRON OR STEEL
METALLURGY
METALLURGY OF IRON
title PREREDUCTION FURNACE OF A SMELTING REDUCTION FACILITY OF IRON ORE
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