SU945179A1 - Method for converting low-manganese cast iron - Google Patents
Method for converting low-manganese cast iron Download PDFInfo
- Publication number
- SU945179A1 SU945179A1 SU792716110D SU2716110D SU945179A1 SU 945179 A1 SU945179 A1 SU 945179A1 SU 792716110 D SU792716110 D SU 792716110D SU 2716110 D SU2716110 D SU 2716110D SU 945179 A1 SU945179 A1 SU 945179A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- manganese
- lime
- minutes
- content
- slag
- Prior art date
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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
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- Carbon Steel Or Casting Steel Manufacturing (AREA)
Description
1one
Изобретение относитс к металлургии, конкретнее к производс: -ву стали в кислородных конвертерах, и может быть использовано при переделе низкомартанцовистого чугуна.The invention relates to metallurgy, more specifically to the production of: steel in oxygen converters, and can be used in the redistribution of low-manganese iron.
Известны способы рафинирювани , при которых марганецсодержащий материал и известь присаживают в течение 1-2 мин после начала продувки 1.Known methods of refining, in which the manganese-containing material and lime sit down for 1-2 minutes after the start of blowing 1.
Наиболее близким по технической сущности и достигаемому результату к изобретению вл -,д етс способ производства стали в кислородном конвертере, включающий завалку скрапа, заливку чугуна, присадку извести, плавикового шпата, марганцевой руды и продувку ванны кислородом, при осуществлении которого из- jj весть и плавиковый шпат ввод т последовательными порци ми по ходу продувки, а марганцевую руду присаживают по истечении 2/3 длительности продувки и не позже. чем за 4 мин до окончани продувки в количестве, опреде- 20 л емом заданным содержанием марганца в конечном металле 2.The closest in technical essence and the achieved result to the invention is a method of steel production in an oxygen converter, including filling of scrap, pouring of cast iron, lime, fluorspar, manganese ore additive and oxygen bath blowing, in which I know. The fluorspar is introduced in successive portions along the course of purging, and manganese ore is seated after 2/3 of the duration of the purge and no later. than 4 minutes before the end of the purge in an amount determined by 20 times the specified manganese content in the final metal 2.
Недостатком известного способа вл етс неудовлетворительное шлакообразование вThe disadvantage of this method is unsatisfactory slag formation in
первом периоде, заметалливание фурм и кессонов , и как следствие, повышенные простои конвертеров.the first period, sweeping of tuyeres and caissons, and as a result, increased downtime of converters.
Цель изобретени - улучшение шлакообразовани и экономи ферромарганца.The purpose of the invention is to improve slag formation and save ferromanganese.
Поставленна цель достигаетс способом передела низкомарганцовистого чугунг с содержанием марганца менее 0,37с в конвертере, включающим завалку скрапа, заливку чугуна, присадку извести, разжижителей, марганецсодержащего материала и продувку ванны кислородом , марганецсодержащий материал в количестве 15-30 кг/т присаживают в завалку в количестве 70-80% от общего расхода, обеспечивающем содержанием МпО в первичном щлаке 12-30%, а остальную часть в количестве 30-20% от общего расхода ввод т по истечении 50-60% длительности продувки.The goal is achieved by the method of redistribution of low-manganese iron with a manganese content of less than 0.37s in the converter, including filling of scrap, pouring pig iron, lime additive, thinners, manganese-containing material and blowing the bath with oxygen, manganese-containing material in the amount of 15-30 kg / ton is placed in the tank. the amount of 70-80% of the total flow rate, providing 12-30% MpO content in the primary section, and the rest in the amount of 30-20% of the total consumption is entered after 50-60% of the purge duration.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU792716110D SU945179A1 (en) | 1979-01-22 | 1979-01-22 | Method for converting low-manganese cast iron |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU792716110D SU945179A1 (en) | 1979-01-22 | 1979-01-22 | Method for converting low-manganese cast iron |
Publications (1)
Publication Number | Publication Date |
---|---|
SU945179A1 true SU945179A1 (en) | 1982-07-23 |
Family
ID=20806614
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU792716110D SU945179A1 (en) | 1979-01-22 | 1979-01-22 | Method for converting low-manganese cast iron |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU945179A1 (en) |
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1979
- 1979-01-22 SU SU792716110D patent/SU945179A1/en active
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