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IPC

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Application

2000112704/02, 2000-05-22

(24)

Start date

2000-05-22

(22)

Actual filing date

2000-05-22

(45)

Published

2000-12-10

(72)

Inventor

Miroevskij G.P.Astaf'Ev A.F.Popov I.O.Glebov A.M.Gavrilov G.I.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Gorno-Metallurgicheskaja Kompanija"

FLUIDIZED BED FURNACE FOR REDUCING METAL OXIDES Russian patent published in 2000 - IPC

Abstract RU 2160420 C1

FIELD: metallurgy, namely chemical industry branches. SUBSTANCE: furnace includes blowing chamber, hearth, blowing nozzles mounted in hearth and having horizontal openings for emitting blast, reaction chamber, crown, apparatuses for charging and discharging granular material, apparatus for feeding gaseous or liquid reducing agent. Blowing nozzles are arranged on hearth at two levels in such a way that height of openings of second level consists (0.5-1.5)h from axis of opening of lower level, where h - height from axis of opening of blowing nozzle until top of nozzle head. Blowing nozzles are arranged in hearth according to staggered fashion. EFFECT: simplified design of portion for supplying fluidizing agent, elimination of particle pack over nozzle heads and prevention of their sintering onto surface of head, enhanced reduction process due to uniform distribution of reducing agent in bed. 2 cl, 1 dwg

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RU 2 160 420 C1

Authors

Miroevskij G.P.

Astaf'Ev A.F.

Popov I.O.

Glebov A.M.

Gavrilov G.I.

Dates

2000-12-10—Published

2000-05-22—Filed

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