SU364678A1 - METHOD OF MELTING STEEL IN GENERAL UNITS - Google Patents

METHOD OF MELTING STEEL IN GENERAL UNITS

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Publication number
SU364678A1
SU364678A1 SU1620914A SU1620914A SU364678A1 SU 364678 A1 SU364678 A1 SU 364678A1 SU 1620914 A SU1620914 A SU 1620914A SU 1620914 A SU1620914 A SU 1620914A SU 364678 A1 SU364678 A1 SU 364678A1
Authority
SU
USSR - Soviet Union
Prior art keywords
slag
smelting
bath
melting steel
furnace
Prior art date
Application number
SU1620914A
Other languages
Russian (ru)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to SU1620914A priority Critical patent/SU364678A1/en
Application granted granted Critical
Publication of SU364678A1 publication Critical patent/SU364678A1/en

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Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Recycling

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  • Manufacture Of Iron (AREA)

Description

1one

Изобретение относитс  к области черной металлургии, в частности к способам интенсификации плавки в подовых сталеплавильных печах.The invention relates to the field of ferrous metallurgy, in particular to methods for the intensification of smelting in hearth steel-smelting furnaces.

Известен способ выплавки стали в подовых агрегатах, включающий заливку чугуна в ванну на прогретый скрап в количестве 70-85% от расхода его на плавку, доливку остальной части чугуна в ванну по ходу плавлени , спуск первичного шлака из печи и наводку нового шлака ввода в ванну флюсующих материалов .There is a known method of steel smelting in the bottom units, including pouring iron into a bath for heated scrap in the amount of 70-85% of its consumption for smelting, refilling the rest of the iron into the bath during smelting, lowering the primary slag from the furnace and laying the new slag into the bath fluxing materials.

Дл  ускорени  шлакообразовани  при наводке нового шлака и повышени  скорости плавлени  скрапа предложено чугун доливать после спуска первичного шлака и одновременно с доливкой его в ванну присаживать флюсующие материалы в количестве 15-30% от их расхода на плавку. Способ состоит в следующем. В подовую сталеплавильную печь, например мартеновскую, заливают часть флюсующих материалов, твердые окислители и весь скрап. После подсыпки порогов и прогрева шихты в печь заливают 80% расходуемого на плавку жидкого чугуна и продувают ваннуIn order to accelerate slag formation at the tip of the new slag and increase the melting rate of scrap, it was suggested that the cast iron be added after descending the primary slag and at the same time refilling it into the bath to embed fluxing materials in the amount of 15-30% of their smelting expenditure. The method consists in the following. A part of fluxing materials, solid oxidizers and all scrap are poured into the hearth steel furnace, for example, open-hearth furnace. After adding the thresholds and heating the charge, 80% of the liquid iron consumed for smelting is poured into the furnace and the bath is blown

кислородом. После спуска части первичного шлака с низкой основностью в печь заливают оставшеес  количество чугуна и одновременно с этим присаживают флюсующие материалы. Далее плавку продолжают по действующей технологической инструкции.with oxygen. After the lower part of the primary slag is lowered, the remaining amount of iron is poured into the furnace and simultaneously fluxing materials are placed. Further melting is continued according to the current technological instructions.

Присадка флюсующих материалов может быть произведена и на струю чугуна, что ео;е более ускорит их растворение в шлаке.The addition of fluxing materials can be made to a stream of cast iron, which is eo; e will more speed up their dissolution in the slag.

Предмет изобретени Subject invention

Способ выплавки стали в подовых агрегатах , включающий заливку чугуна в ванну наThe method of steel smelting in the bottom units, including casting iron in the bath

прогретый скрап в количестве 70-85% его расхода на плавку, доливку остальной части чугуна в ванну по ходу плавлени , спуск первичного шлака из печи и наводку нового шлака путем ввода в ванну флюсующих матерйалов , отличающийс  тем, что, с целью ускорени  шлакообразовани  нри наводке шлака и повышени  скорости плавлени  скрана, чугун доливают после спуска первичного шлака и о.иювременно присаживают флюсующие материалы в количестве 15-30% от их общего |)асхода на плавку.heated scrap in the amount of 70-85% of its melt consumption, topping up the rest of the cast iron in the bath during smelting, lowering the primary slag from the furnace and putting new slag through the introduction of fluxing materials into the bath, in order to accelerate slag formation at the target slag and increase the rate of melting of the skran, cast iron is added after the descent of the primary slag and the fluxing materials are deposited in an amount of 15-30% of their total melting cost.

SU1620914A 1971-02-11 1971-02-11 METHOD OF MELTING STEEL IN GENERAL UNITS SU364678A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1620914A SU364678A1 (en) 1971-02-11 1971-02-11 METHOD OF MELTING STEEL IN GENERAL UNITS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1620914A SU364678A1 (en) 1971-02-11 1971-02-11 METHOD OF MELTING STEEL IN GENERAL UNITS

Publications (1)

Publication Number Publication Date
SU364678A1 true SU364678A1 (en) 1972-12-28

Family

ID=20465755

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1620914A SU364678A1 (en) 1971-02-11 1971-02-11 METHOD OF MELTING STEEL IN GENERAL UNITS

Country Status (1)

Country Link
SU (1) SU364678A1 (en)

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