SU711107A1 - Method of metal charge preparation for its reprocessing in oxygen converter - Google Patents
Method of metal charge preparation for its reprocessing in oxygen converter Download PDFInfo
- Publication number
- SU711107A1 SU711107A1 SU782603365A SU2603365A SU711107A1 SU 711107 A1 SU711107 A1 SU 711107A1 SU 782603365 A SU782603365 A SU 782603365A SU 2603365 A SU2603365 A SU 2603365A SU 711107 A1 SU711107 A1 SU 711107A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- reprocessing
- metal charge
- oxygen converter
- charge preparation
- scrap
- Prior art date
Links
Classifications
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
Description
(54) СПОСОБ ПОДГОТОВКИ МЕТАЛЛОШИХТЫ К ПЕРЕДЕЛУ В КИСЛОРОДНОМ КОНВЕРТОРЕ(54) METHOD FOR PREPARING METAL DRILL TO REDUCTURE IN OXYGEN CONVERTER
ном процессе. Экономи углерода чугуна позвол ет увеличить долю скрапа в металлошихте .Mr. process. The carbon economy of cast iron allows to increase the scrap fraction in the metal charge.
Присадки углеродсодержащих материалов (антрацит, кокс, электродный бат) на скрап в количестве 0,01-5,0 кг/т расплава позвол ют увеличить содержание углерода до уровн , определ емого пределом растворимости при получаемых температурах расплава. Присадка углеродсодержащего материала менее 0,01 кг/т не дает эффекта из-за полного окислени углерода кислородом воздуха; присадки более 5,0 кг/т приводит к перерасходу науглероживател и выносу неусвоенного углерода из ковша.The addition of carbon-containing materials (anthracite, coke, electrode bat) to scrap in an amount of 0.01-5.0 kg / ton of melt allows to increase the carbon content to the level determined by the solubility limit at the resulting melt temperatures. The addition of carbon-containing material less than 0.01 kg / ton does not give effect due to the complete oxidation of carbon with oxygen in the air; Additives of more than 5.0 kg / ton lead to over-expenditure of the carburizer and removal of undigested carbon from the ladle.
Пример. В чугуновозном ковше с помощью кислородно-топливной горелки с расходом природного газа 25 стали и кислорода 55 в течение 8 мин подвергают нагреву 1,5 т скрапа. Температура нагрева скрапа 1250°С. Затем на скрап присаживают электродный бой в количестве 0,7 кг/т металлошихты и из вагранки сливаетс чугун химического состава, %: С - 4,3; Мп - 1,6; Si - 0,8; Р -- 0,2. Получают расплав состава, °/о: С - 4,2; Мп - 0,91; ; S - 0,68; Р - 0,014. Этот расплав сливает . с в 10-т конвертор после завалки 1,5 т холодного скрапа, присаживаетс перва порци извеЪти 0,4 т и производитс продувка через 3-сопловую фурму с расходом кислорода 40 . На б-ой мин продувки присаживают вторую порцию извести 0,3 т иExample. In an iron ladle with an oxygen-fuel burner with a consumption of natural gas 25 steel and oxygen 55 for 8 min is subjected to heating 1.5 tons of scrap. Scrap heating temperature 1250 ° С. Then, electrode strike in the amount of 0.7 kg / t of metal charge is placed on the scrap and cast iron of chemical composition is discharged from the cupola,%: C - 4.3; MP - 1.6; Si - 0.8; P - 0.2. Get the melt composition, ° / o: C - 4.2; MP - 0.91; ; S — 0.68; P - 0.014. This melt merges. A 10-ton converter after filling 1.5 tons of cold scrap, sits down the first portion of 0.4 tons and blows through a 3-nozzle with an oxygen consumption of 40. On the second minute of the blowdown, a second portion of lime is put down 0.3 tons and
на 14-ой - заканчивают продувку при со держании 0,15% углерода в металле.on the 14th — purge is completed with a content of 0.15% carbon in the metal.
Раскисление, выпуск и разливка металла производ тс обычным методом.The deacidification, production and casting of the metal are carried out in the usual manner.
Применение вышеуказанных примеров позвол ет увеличить долю скрапа в металлошихте до 30% и более, а также сократить на UO-40% необходимый дл нагрева скрапа расход топлива.The use of the above examples allows increasing the scrap fraction in the metal charge up to 30% or more, and also reduces the fuel consumption required for heating the scrap by UO-40%.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU782603365A SU711107A1 (en) | 1978-04-11 | 1978-04-11 | Method of metal charge preparation for its reprocessing in oxygen converter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU782603365A SU711107A1 (en) | 1978-04-11 | 1978-04-11 | Method of metal charge preparation for its reprocessing in oxygen converter |
Publications (1)
Publication Number | Publication Date |
---|---|
SU711107A1 true SU711107A1 (en) | 1980-01-25 |
Family
ID=20759189
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU782603365A SU711107A1 (en) | 1978-04-11 | 1978-04-11 | Method of metal charge preparation for its reprocessing in oxygen converter |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU711107A1 (en) |
-
1978
- 1978-04-11 SU SU782603365A patent/SU711107A1/en active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SU711107A1 (en) | Method of metal charge preparation for its reprocessing in oxygen converter | |
US2820706A (en) | Furnace and method for making steel | |
GB1532204A (en) | Cupola furnace and a method for the melting and refining of cement copper | |
FR2400559A1 (en) | Continuous heating of molten iron obtd. from scrap - in shaft furnace leading to steel-making converter fed with oxygen | |
Sims et al. | Experimental operation of a basic-lined surface-blown hearth for steel production | |
SU123543A1 (en) | Method for the production of nodular cast iron | |
SU530067A1 (en) | Method for the production of synthetic slag | |
SU107908A1 (en) | Wear resistant alloy | |
SU492550A1 (en) | Ichm-method of steel production in the converter | |
GB840811A (en) | Process for refining pig iron | |
SU629233A1 (en) | Method of producing synthetic slag | |
GB1382346A (en) | Metallurgical plant | |
GB865325A (en) | Improvements relating to the preparation of calcium carbide in a shaft furnace | |
US2841475A (en) | Method of producing aluminum carbide | |
SU530063A1 (en) | The method of steelmaking | |
SU635150A1 (en) | Method of fire refining of blister copper from admixtures | |
SU513086A1 (en) | Method for the production of low-phosphorus steel | |
SU458610A1 (en) | The method of smelting hromoizvestkovogo melt | |
SU42058A1 (en) | The method of extraction of vanadium from shungite | |
SU718481A1 (en) | Method of steel casting | |
Gulyaev et al. | Further Development of a Practice for Smelting Foundry Iron in Blast Furnace No. 2 at the Orsko-Khalilovo Iron and Steel | |
Waelkens et al. | Maximizing the Use of National Raw Materials at the SIDINSA Blast Furnaces | |
SU399536A1 (en) | METHOD OF MANUFACTURING STEEL IN OXYGEN CONVERTER | |
SU645378A1 (en) | Method of metal smelting in lined electric furnace | |
Mao | Raising of Scrap Rate in Top Blown Open Hearth Furnace With Quasi-Graphite |