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2 451 091

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(51)

IPC

C21C5/52(2006-01-01)

(21) (22)

Application

2011114643/02, 2011-04-13

(24)

Start date

2011-04-13

(22)

Actual filing date

2011-04-13

(45)

Published

2012-05-20

(72)

Inventor

Jakushev Evgenij Valer'EvichMaslov Evgenij VladimirovichVostrikov Vitalij GeorgievichZubov Sergej PetrovichKuznetsov Maksim SergeevichKulikov Valerij Viktorovich

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Stal'" Stal'"

METHOD OF STEEL MAKING IN ARC-TYPE FURNACES Russian patent published in 2012 - IPC C21C5/52

Abstract RU 2451091 C1

FIELD: metallurgy.

SUBSTANCE: method involves supply of charge, melting, oxygen blowing, addition of lime with content of active lime of not less than 85% and coke during melting process and oxygen blowing. Lime with content of active lime of 40-70% together with metal junk is added to the furnace to the charge. Coke with particles with size of 5-40 mm is added during melting process and blowing process. Coke with particles with size of 0-3 mm is added after melting process is finished.

EFFECT: reduction of duration of melting process and electric power consumption.

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RU 2 451 091 C1

Authors

Jakushev Evgenij Valer'Evich

Maslov Evgenij Vladimirovich

Vostrikov Vitalij Georgievich

Zubov Sergej Petrovich

Kuznetsov Maksim Sergeevich

Kulikov Valerij Viktorovich

Dates

2012-05-20—Published

2011-04-13—Filed