RU96123500A - METHOD FOR DISPOSING OF LIQUID CHIGUN - Google Patents

METHOD FOR DISPOSING OF LIQUID CHIGUN

Info

Publication number
RU96123500A
RU96123500A RU96123500/02A RU96123500A RU96123500A RU 96123500 A RU96123500 A RU 96123500A RU 96123500/02 A RU96123500/02 A RU 96123500/02A RU 96123500 A RU96123500 A RU 96123500A RU 96123500 A RU96123500 A RU 96123500A
Authority
RU
Russia
Prior art keywords
liquid
slag
iron
steel
desulfurization
Prior art date
Application number
RU96123500/02A
Other languages
Russian (ru)
Other versions
RU2181382C2 (en
Inventor
Шмидт Ханс-Ульрих
Хольцхай Вернер
Крушке Эберхард
Венцель Клаус
Original Assignee
Эко Шталь ГмбХ
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
Priority claimed from DE1995146738 external-priority patent/DE19546738C2/en
Application filed by Эко Шталь ГмбХ filed Critical Эко Шталь ГмбХ
Publication of RU96123500A publication Critical patent/RU96123500A/en
Application granted granted Critical
Publication of RU2181382C2 publication Critical patent/RU2181382C2/en

Links

Claims (3)

1. Способ обессеривания жидкого чугуна с использованием жидкого шлака, образующегося при внепечной обработке жидкой стали, отличающийся тем, что основной жидкий шлак с составом, %:
CaO - 45-70
SiO2 - 2-17
MgO - 4-8
Al2O3 - 14-22
FeO - 0,5-6
а также остатки расплава металла непосредственно после разливки стальной плавки вместе с оставшимся количеством стали загружают в горячий завалочный ковш для чугуна и обессериваемый жидкий чугун с температурой 1250 до 1400°С добавляют к шлаку с остатками стали, после чего осуществляют первое завихрение чугуна с высокоосновным шлаком и после этого жидкий чугун с высокоосновным ковшовым шлаком подвергают обработке с помощью погружной фурмы вдуванием порошкового десульфиризатора и газа-носителя, причем за счет подачи газа-носителя в жидкий чугун происходит дальнейшее завихрение плавки с примененным порошковым десульфуризатором с включением высокоосновного шлака, в результате чего начинается интенсивный процесс обессеривания.1. The method of desulfurization of liquid iron using liquid slag formed during out-of-furnace processing of liquid steel, characterized in that the main liquid slag with the composition,%:
CaO - 45-70
SiO 2 - 2-17
MgO - 4-8
Al 2 O 3 - 14-22
FeO - 0.5-6
as well as residues of molten metal directly after casting steel smelting, together with the remaining amount of steel, is loaded into a hot cast-iron ladle and desulfurized liquid iron with a temperature of 1250 to 1400 ° C is added to the slag with steel residues, after which the first twist of cast iron with a highly basic slag is carried out and thereafter, liquid iron with a highly basic bucket slag is treated with an immersion tuyere by injecting a powder desulfurizer and a carrier gas, moreover, by supplying a carrier gas to the liquid cast iron occurs further vortex smelting with the use of a powder desulfurizing agent with the inclusion of highly basic slag, as a result of which an intensive process of desulfurization begins. 2. Способ по п. 1, отличающийся тем, что в качестве порошкового десульфуризатора применяется СаО, СаС2/Мg или тому подобное.2. The method according to claim 1, characterized in that CaO, CaC 2 / Mg or the like is used as a powder desulfurizer. 3. Способ по п. 1, отличающийся тем, что продолжительность обессеривания в зависимости от содержания серы уменьшена на макс. 30% по сравнению с обычной обработкой погружной фурмой. 3. The method according to p. 1, characterized in that the duration of desulfurization, depending on the sulfur content is reduced by max. 30% compared to conventional submersible tuyere processing.
RU96123500A 1995-12-14 1996-12-11 Method of desulfurization of liquid cast iron RU2181382C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19546738.8 1995-12-14
DE1995146738 DE19546738C2 (en) 1995-12-14 1995-12-14 Process for the desulfurization of pig iron melts

Publications (2)

Publication Number Publication Date
RU96123500A true RU96123500A (en) 1999-01-20
RU2181382C2 RU2181382C2 (en) 2002-04-20

Family

ID=7780154

Family Applications (1)

Application Number Title Priority Date Filing Date
RU96123500A RU2181382C2 (en) 1995-12-14 1996-12-11 Method of desulfurization of liquid cast iron

Country Status (8)

Country Link
EP (1) EP0779368B1 (en)
AT (1) ATE202149T1 (en)
CZ (1) CZ290089B6 (en)
DE (2) DE19546738C2 (en)
ES (1) ES2160200T3 (en)
PL (1) PL181566B1 (en)
RU (1) RU2181382C2 (en)
TR (1) TR199600994A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT407260B (en) * 1998-05-20 2001-02-26 Voest Alpine Ind Anlagen METHOD FOR PRODUCING STEEL MELT
DE19910398C2 (en) * 1999-03-03 2001-02-22 Mannesmann Ag Process for producing steel with a low sulfur content
CN102041353B (en) * 2009-10-23 2012-12-05 攀钢集团钢铁钒钛股份有限公司 Desulfurizer, preparation method thereof and desulfurization method adopting desulfurizer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB455042A (en) * 1934-03-07 1936-10-07 Electro Chimie Metal A process for dephosphorising and desulphurising steel
US4600434A (en) * 1985-07-24 1986-07-15 Armco Inc. Process for desulfurization of ferrous metal melts
DE3836549C1 (en) * 1988-10-27 1990-01-18 Krupp Stahl Ag, 4630 Bochum, De Process for desulphurising molten crude iron
DE4206091C2 (en) * 1992-02-27 1994-09-22 Anton Dr More Process for the desulfurization of molten iron with minimal slag accumulation and a suitable device

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