SU398634A1 - METHOD FOR PROCESSING STEEL IN A BUCKET LIQUID SYNTHETIC SLAG - Google Patents

METHOD FOR PROCESSING STEEL IN A BUCKET LIQUID SYNTHETIC SLAG

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Publication number
SU398634A1
SU398634A1 SU1720027A SU1720027A SU398634A1 SU 398634 A1 SU398634 A1 SU 398634A1 SU 1720027 A SU1720027 A SU 1720027A SU 1720027 A SU1720027 A SU 1720027A SU 398634 A1 SU398634 A1 SU 398634A1
Authority
SU
USSR - Soviet Union
Prior art keywords
steel
slag
liquid synthetic
synthetic slag
processing steel
Prior art date
Application number
SU1720027A
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 SU1720027A priority Critical patent/SU398634A1/en
Application granted granted Critical
Publication of SU398634A1 publication Critical patent/SU398634A1/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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  • Treatment Of Steel In Its Molten State (AREA)

Description

Изобретение относитс  к металлургии стали.This invention relates to steel metallurgy.

Известен способ обработки стали в ковше жидкими известково-глипоземистыми или известково-силикатно-глипоземистыми шлаками. There is a method of processing steel in a ladle with liquid lime-glypous or calc-silicate-glypous slags.

Така  обработка стали позвол ет снизить содержание в ней серы, кислорода и частично удалить неметаллические включени .Such treatment of the steel makes it possible to reduce the content of sulfur and oxygen in it and to partially remove non-metallic inclusions.

Однако обработка стали синтетическими шлаками не позвол ет снизить содержание растворенного в ней азота, а в р де случаев приводит даже к повышению его концентрации в металле. Кроме того, синтетический шлак по ходу обработки стали измен ет свой химический состав в сторону повышени  содержани  окислов железа, что снижает эффективиость обработки последних порций стали, выпускаемой из сталеплавильного агрегата .However, the treatment of steel with synthetic slags does not allow a decrease in the content of nitrogen dissolved in it, and in some cases even leads to an increase in its concentration in the metal. In addition, synthetic slag during the processing of steel changes its chemical composition in the direction of increasing the content of iron oxides, which reduces the efficiency of processing the last portions of steel produced from the steelmaking unit.

Пре/члагаемый способ обработки стали жидними синтетическими шлаками нредусматривает повышение рафинирующей способности синтетических шлаков по отношению к сере и кислороду с одновременным удалением из стали азота.The pre-conventional method of processing steel with liquid synthetic slags does not mean an increase in the refining capacity of synthetic slags with respect to sulfur and oxygen while simultaneously removing nitrogen from steel.

С этой целью предлагаетс  вводить в синтетический шлак в момент его смешеии  с обрабатываемой сталью углерод в количестве 1-2% от веса шлака.For this purpose, it is proposed to introduce carbon into the synthetic slag at the time of its mixing with the steel being treated in the amount of 1-2% of the weight of the slag.

Повышение концентрации углерода в шлаке с О до 1,0% повышает растворимость азота в шкале с тыс чных до дес тых долей процента, что значительно повышает сорбционную способность шлака по отношению к азоту, растворенному в стали. При этом шлак приобретает способность экстрагировать азот из стали в услови х развитой коитактной поверхности в процессе обработки ее шлаком.Increasing the carbon concentration in the slag from 0 to 1.0% increases the solubility of nitrogen on the scale from thousandths to tenths of a percent, which significantly increases the sorption capacity of the slag in relation to nitrogen dissolved in steel. In this case, the slag acquires the ability to extract nitrogen from steel under the conditions of a developed co-tact surface during the slag treatment process.

Нар ду с этим наличие углерода иреп тствует накоплению в шлаке окислов железа, что повышает раскислительную сиособность шлака .In addition, the presence of carbon and the accumulation of iron oxides in the slag, which increases the deoxidizing capacity of the slag.

Предмет изобретени Subject invention

Способ обработки стали в ковше жидким синтетическим шлаком, отличающийс  тем, что, с целью повышепи  качества стали, н шлак перед обработкой и в процессе обработки ввод т углерод в кол1 честве 1-2% от веса шлака.A method of treating steel in a ladle with liquid synthetic slag, characterized in that, in order to improve the quality of steel, n slag before treatment and during processing carbon is introduced in the amount of 1-2% of the weight of slag.

SU1720027A 1971-12-01 1971-12-01 METHOD FOR PROCESSING STEEL IN A BUCKET LIQUID SYNTHETIC SLAG SU398634A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1720027A SU398634A1 (en) 1971-12-01 1971-12-01 METHOD FOR PROCESSING STEEL IN A BUCKET LIQUID SYNTHETIC SLAG

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1720027A SU398634A1 (en) 1971-12-01 1971-12-01 METHOD FOR PROCESSING STEEL IN A BUCKET LIQUID SYNTHETIC SLAG

Publications (1)

Publication Number Publication Date
SU398634A1 true SU398634A1 (en) 1973-09-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU1720027A SU398634A1 (en) 1971-12-01 1971-12-01 METHOD FOR PROCESSING STEEL IN A BUCKET LIQUID SYNTHETIC SLAG

Country Status (1)

Country Link
SU (1) SU398634A1 (en)

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