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2 167 204

(13)

(51)

IPC

(21) (22)

Application

99127989/02, 1999-12-31

(24)

Start date

1999-12-31

(22)

Actual filing date

1999-12-31

(45)

Published

2001-05-20

(72)

Inventor

Urbanovich G.I.Urbanovich E.G.Grigor'Ev V.N.Al'Ter M.A.Emel'Janov V.L.Lysenko S.A.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Metallurgicheskij Kombinat"

BLAST FURNACE TUYERE Russian patent published in 2001 - IPC

Abstract RU 2167204 C1

FIELD: ferrous metallurgy, namely, apparatuses for feeding hot blast and additional fuel to blast furnace. SUBSTANCE: metal of inner nozzle of tuyere is protected with metallic insert whose size corresponds to collapsible portion of inner nozzle of tuyere subjected to action of aggressive coke gas. Insert is made of one or several plates of transformer steel with MgO-base electrically insulated coating. Plates are cut out of transformer steel sheets. EFFECT: enhanced strength of tuyere. 3 cl, 2 dwg

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RU 2 167 204 C1

Authors

Urbanovich G.I.

Urbanovich E.G.

Grigor'Ev V.N.

Al'Ter M.A.

Emel'Janov V.L.

Lysenko S.A.

Dates

2001-05-20—Published

1999-12-31—Filed