WO2003083145A1 - Procede de melangeage de l'acier dans la poche de coulee - Google Patents

Procede de melangeage de l'acier dans la poche de coulee Download PDF

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Publication number
WO2003083145A1
WO2003083145A1 PCT/RU2002/000400 RU0200400W WO03083145A1 WO 2003083145 A1 WO2003083145 A1 WO 2003083145A1 RU 0200400 W RU0200400 W RU 0200400W WO 03083145 A1 WO03083145 A1 WO 03083145A1
Authority
WO
WIPO (PCT)
Prior art keywords
gas
metal
steel
devices
ladle
Prior art date
Application number
PCT/RU2002/000400
Other languages
English (en)
Russian (ru)
Inventor
Ewald Schumacher
Viktor Nikolaevich Khloponin
Edgar Schumacher
Ivan Vasilievich Zinkovsky
Original Assignee
Techcom Import-Export Gmbh
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 by Techcom Import-Export Gmbh filed Critical Techcom Import-Export Gmbh
Priority to AU2002332367A priority Critical patent/AU2002332367A1/en
Priority to EP02768214A priority patent/EP1541699B1/fr
Priority to DE50213248T priority patent/DE50213248D1/de
Priority to UA20041210939A priority patent/UA77545C2/uk
Publication of WO2003083145A1 publication Critical patent/WO2003083145A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D27/00—Stirring devices for molten material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
    • B22D1/002—Treatment with gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
    • B22D1/002—Treatment with gases
    • B22D1/005—Injection assemblies therefor
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/06—Constructional features of mixers for pig-iron
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/0075—Treating in a ladle furnace, e.g. up-/reheating of molten steel within the ladle
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/072—Treatment with gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/16—Introducing a fluid jet or current into the charge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/18—Charging particulate material using a fluid carrier
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D27/00—Stirring devices for molten material
    • F27D2027/002—Gas stirring

Definitions

  • the invention relates to methods of the external processing of a liquid metal in the former in the black metal. It is known that inert gas has also become inactive
  • An important value in the process of the off-furnace metal processing is that it has an intensification of the process of stirring the metal, which saves the time for the processing of the metal. Homogenization of the alloy accelerates the processes of acidification, removal of non-metallic inclusions, as well as desulfurization and dephosphorization, which ensures that the goals are achieved.
  • the method of intensifying the stirring of the metal in advance by increasing the consumption of gas by blowing is known. ⁇
  • gas is supplied through the “full speed” type of furnace, and to exclude the discharge of metal, the gas is used in a high volume; ⁇ ° 12. 1999, p. 17-19].
  • the main disadvantage of the method is the attempt to solve the problem of intensifying the stirring of the metal by increasing the gas consumption. But in the same case, stirring in this case does not cover most of the metal, especially its particular zones. In fact, the markedly reduces the efficiency of the known method in solving the fixed problem.
  • the main disadvantage of the method is the high cost of the used equipment and the relatively low efficiency of mixing.
  • the mixing method became stale in the past, including the blowing of steel from the bottom with a gas or gas mixture through the blowing devices located in the lower part of the bath and at least one of the biases is displaced from the center [see, for example, the source of “Injected Metals”, p. 142 - 143 and ⁇ fig. 12]. While selling, a known method of supplying gas or a gas mixture through special processes in the bottom is unsuccessful, it is not
  • the method of stirring has become implemented in the following way.
  • the periodic change of direction of movement of the main flow of metal 6 -> 7 - 6, etc. the process of stirring the metal is significantly intensified, as a result of which, a more hardened structure is obtained, the hardened structure has become higher, i.e. solves the posed technical problem.
  • gas supply gas mixture
  • steel at the beginning of the periodic shift increases, t. ⁇ . Only in this case, the flows of metal 6 and 7 have the final form (shown in Figs. 1 and 2) and the reversal of the gas supply (gas mixture) is minimized.
  • the young model 1 had the sizes shown on the fig. 1.
  • the poured water was poured 2 with a height of 430 mm.
  • ⁇ vsh was ⁇ b ⁇ ud ⁇ van ⁇ emya ⁇ la ⁇ in ⁇ vymi ele ⁇ dami (za ⁇ anee ⁇ a ⁇ i ⁇ vannymi in ⁇ edela ⁇ v ⁇ d ⁇ v ⁇ dnaya v ⁇ da - ⁇ ntsen ⁇ atsiya 0,1% ⁇ weight ⁇ S ⁇ in v ⁇ de): the bottom chas ⁇ i ⁇ vsha ( ⁇ ass ⁇ yanie 370 mm ⁇ ⁇ ve ⁇ n ⁇ s ⁇ i v ⁇ dy) in s ⁇ edney chas ⁇ i ⁇ vsha ( ⁇ ass ⁇ yanie 220 mm ⁇ ⁇ ve ⁇ n ⁇ s ⁇ i v ⁇ dy ) and in the upper part (60 mm distance from the water level).
  • EXAMPLE 2 Under the conditions indicated in Example 1, the conditions were favorable for the air flow with an interval of 30 sec. When recirculating, the quantity of supplied air is at a level of 6 l / min.
  • EXAMPLE 4 Under the conditions indicated in the case of ⁇ 1 and 2, the conditions for a positive air flow with a step of 10 sec. Homogeneous room in Better than the noted concentration was received after 84 ... 87 min., i.e. Compared to Example 1, the stirring time of the solution was practically lost. At the end of stirring in the volume of water, there were zones with a larger and less than 0.1% SCC concentration in the water, which did not fix the main electric elements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Paper (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Heat Treatment Of Steel (AREA)
  • Furnace Details (AREA)

Abstract

L'invention relève de la sidérurgie et se rapporte au domaine du traitement hors fourneau du métal en fusion dans la poche de coulée. Elle permet d'élargir la zone active de l'application du gaz ou du mélange gazeux-pulvérulent à l'intégralité du volume du métal, ce qui permet de réduire le temps nécessaire pour obtenir une composition de métal homogénéisée sans pour autant augmenter la quantité du gaz alimenté. En d'autres termes, cela permet d'intensifier le mélangeage de l'acier dans la poche tout en effectuant le barbotage du gaz ou du mélange gazeux-pulvérulent dans l'acier. Le procédé de mélangeage de l'acier dans la poche de coulée comprend le barbotage du gaz ou du mélange gazeux-pulvérulent dans l'acier, dirigé du bas vers le haut et effectué à travers au moins deux dispositifs de barbotage disposés des côtés opposés de la poche de coulée. Le barbotage est effectué tour à tour, d'abord via un dispositif situé d'un côté de la poche de coulée puis via l'autre dispositif situé du côté opposé de la poche de coulée. On maintient dans le dispositif de barbotage non utilisé à l'instant pour le barbotage une pression empêchant le métal en fusion d'y pénétrer. La périodicité de fonctionnement de chaque dispositif de barbotage augmente avec l'augmentation de la masse de l'acier dans la poche de coulée; lors de la commutation de l'alimentation en gaz ou en mélange gazeux-pulvérulent entre les deux dispositifs de barbotage, le volume de gaz alimenté reste invariable.
PCT/RU2002/000400 2002-04-03 2002-08-29 Procede de melangeage de l'acier dans la poche de coulee WO2003083145A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AU2002332367A AU2002332367A1 (en) 2002-04-03 2002-08-29 Method for feeling steel
EP02768214A EP1541699B1 (fr) 2002-04-03 2002-08-29 Procede de brassage de l'acier
DE50213248T DE50213248D1 (de) 2002-04-03 2002-08-29 Verfahren zum rühren von stahl
UA20041210939A UA77545C2 (en) 2002-04-03 2002-08-29 Method for steel mixing in the ladle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2002108332/02A RU2208054C1 (ru) 2002-04-03 2002-04-03 Способ перемешивания стали в ковше
RU2002108332 2002-04-03

Publications (1)

Publication Number Publication Date
WO2003083145A1 true WO2003083145A1 (fr) 2003-10-09

Family

ID=28673171

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU2002/000400 WO2003083145A1 (fr) 2002-04-03 2002-08-29 Procede de melangeage de l'acier dans la poche de coulee

Country Status (8)

Country Link
EP (1) EP1541699B1 (fr)
AT (1) ATE421598T1 (fr)
AU (1) AU2002332367A1 (fr)
DE (1) DE50213248D1 (fr)
ES (1) ES2321071T3 (fr)
RU (1) RU2208054C1 (fr)
UA (1) UA77545C2 (fr)
WO (1) WO2003083145A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115475933A (zh) * 2022-10-13 2022-12-16 莱芜钢铁集团银山型钢有限公司 一种板坯连铸机水口吹氩密封的保护方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1750075A1 (fr) * 2005-08-05 2007-02-07 Vesuvius Becker & Piscantor Grossalmeroder Schmelztiegelwerke GmbH & Co. KG Creuset pour le traitement de métal liquide et et son procédé de fabrication
EP2910651A1 (fr) * 2014-02-19 2015-08-26 Siemens VAI Metals Technologies GmbH Procédé de circulation d'un bain de métal et installation de four
RU2653743C1 (ru) * 2017-03-20 2018-05-14 Публичное акционерное общество "Северсталь" (ПАО "Северсталь") Способ перемешивания стали в металлургическом агрегате
CN111822665B (zh) * 2020-07-25 2021-12-21 莱芜钢铁集团银山型钢有限公司 一种用于连铸中间包透气上水口座砖的吹氩控制方法及氩气控制装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3791813A (en) * 1971-07-09 1974-02-12 Allegheny Ludlum Ind Inc Method for injecting a gaseous reacting agent into a bath of molten metal
SU1024509A1 (ru) * 1981-12-23 1983-06-23 Днепродзержинский Ордена Трудового Красного Знамени Индустриальный Институт Им.М.И.Арсеничева Способ передела чугуна в конвертере
JPH06235018A (ja) * 1993-02-09 1994-08-23 Kawasaki Steel Corp 取鍋精錬における底吹きガス制御方法
RU2023017C1 (ru) * 1992-03-11 1994-11-15 Пак Юрий Алексеевич Устройство для десульфурации шлакового расплава
RU2132394C1 (ru) * 1998-06-02 1999-06-27 Открытое акционерное общество "Северсталь" Способ выплавки стали в дуговой сталеплавильной печи
CN1294199A (zh) * 1999-11-02 2001-05-09 北京科技大学 盛钢桶浸渍罩密闭钢液喷粉脱硫方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA75241B (en) * 1974-08-14 1976-01-28 Inland Steel Co Leaded steel bar

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3791813A (en) * 1971-07-09 1974-02-12 Allegheny Ludlum Ind Inc Method for injecting a gaseous reacting agent into a bath of molten metal
SU1024509A1 (ru) * 1981-12-23 1983-06-23 Днепродзержинский Ордена Трудового Красного Знамени Индустриальный Институт Им.М.И.Арсеничева Способ передела чугуна в конвертере
RU2023017C1 (ru) * 1992-03-11 1994-11-15 Пак Юрий Алексеевич Устройство для десульфурации шлакового расплава
JPH06235018A (ja) * 1993-02-09 1994-08-23 Kawasaki Steel Corp 取鍋精錬における底吹きガス制御方法
RU2132394C1 (ru) * 1998-06-02 1999-06-27 Открытое акционерное общество "Северсталь" Способ выплавки стали в дуговой сталеплавильной печи
CN1294199A (zh) * 1999-11-02 2001-05-09 北京科技大学 盛钢桶浸渍罩密闭钢液喷粉脱硫方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115475933A (zh) * 2022-10-13 2022-12-16 莱芜钢铁集团银山型钢有限公司 一种板坯连铸机水口吹氩密封的保护方法
CN115475933B (zh) * 2022-10-13 2024-04-26 莱芜钢铁集团银山型钢有限公司 一种板坯连铸机水口吹氩密封的保护方法

Also Published As

Publication number Publication date
UA77545C2 (en) 2006-12-15
EP1541699A4 (fr) 2005-09-21
EP1541699A1 (fr) 2005-06-15
AU2002332367A1 (en) 2003-10-13
ES2321071T3 (es) 2009-06-02
EP1541699B1 (fr) 2009-01-21
RU2208054C1 (ru) 2003-07-10
DE50213248D1 (de) 2009-03-12
ATE421598T1 (de) 2009-02-15

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