EP0956917B1 - Récipient métallurgique - Google Patents
Récipient métallurgique Download PDFInfo
- Publication number
- EP0956917B1 EP0956917B1 EP99109152A EP99109152A EP0956917B1 EP 0956917 B1 EP0956917 B1 EP 0956917B1 EP 99109152 A EP99109152 A EP 99109152A EP 99109152 A EP99109152 A EP 99109152A EP 0956917 B1 EP0956917 B1 EP 0956917B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- steel
- cast iron
- vessel
- gas
- taphole
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/50—Pouring-nozzles
- B22D41/58—Pouring-nozzles with gas injecting means
-
- 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
Definitions
- the invention relates to a vessel for holding liquid steel or cast iron, which in consists essentially of a steel jacket and a lining made of refractory material, whereby at a defined location there is an opening provided for tapping, whereby um the opening provided for the tapping provided several gas-permeable flushing stones with the help of a gas that prevents hollow vortices when tapping the steel or Cast iron against the direction of flow of the steel or cast iron in the steel bath or Cast iron bath is inflatable, according to the preamble of claims 1 and 5.
- outlet opening is frustoconical Taper the outlet opening away. This should improve the drainage of the steel become.
- a single gas-permeable sink is concentric around this outlet opening provided around.
- the invention is based, for pouring liquid steel from a task for the task suitable vessel to avoid the flow of slag particles.
- the opening provided for tapping is according to claim 2 through a perforated brick educated.
- the gas-permeable sink stones around the Perforated stone are arranged around.
- the perforated stone is offset four from one another by 90 ° Has sink stones.
- the sink blocks When installed, sink blocks are oriented in their longitudinal direction so that this longitudinal direction intersects the central axis of the opening above this opening.
- the gas emerges from the surface of the liquid steel or cast iron in the vessel. By blowing the gas, the formation of hollow vortices and the associated entrainment of contaminants can be largely avoided, too if the vessel is at least largely completely emptied.
- the advantages achieved with the invention consist essentially in that when tapping of liquid steel or cast iron from a suitable vessel does not follow Slag from the steel bath takes place in products intended for further processing, for example billets during continuous casting, mold products. This results in a Quality improvement of the steel or cast iron products produced in this way. Besides, that can Empty vessel for holding liquid steel or cast iron completely, which is a higher Spreading as previously equivalent to steel or cast iron. By completely idling the vessel still saves costs because there is no residual steel or cast iron more is dumped into the slag bucket.
- the invention can in ladles, in a converter or, for example, in an electric oven.
- the invention can also be part of sliding closures known per se, in particular in the case of Ladles.
- connections 6, which are connected, for example, via a ring line 7 can be, which is connected via a connection 8 to the gas supply; - as a gas a gas which is neutral for the steel bath, for example argon, is used.
- each of the sink stones with a separate connection for the supply must be provided with gas under pressure. It turns out to be advantageous that approximately the same amount of gas flows through all the purging stones, so that a particularly uniform rinsing and therefore a particularly uniform flow of the Steel or cast iron results in racking. If the sink stones with a ring line pressurized gas can be supplied due to different porosities of the individual sink stones to larger differences in the through the individual sink stones flowing gas quantities come, so that under certain circumstances a more uneven Rinsing results. It has been shown that the gas, for example, advantageously under one Pressure can be from about 10 to 12 bar to achieve an advantageous result.
- the invention is not limited to the processing of liquid steel; also when parting off cast iron, the invention can be used.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Claims (5)
- Récipient destiné à recevoir de l'acier liquide ou de la fonte de fer, constitué essentiellement d'un manteau en acier et d'un garnissage en matériau réfractaire, une ouverture étant prévue à un endroit défini pour la coulée, plusieurs pierres de lavage perméables aux gaz étant prévues autour de l'ouverture (5) prévue pour la coulée, à l'aide desquelles un gaz, empêchant la formation de tourbillons creux lors de la coulée de l'acier ou de la fonte de fer, est introduit à contre-courant de la direction de coulée (3) de l'acier ou de la fonte de fer dans la cuve d'acier ou la cuve de fonte de fer (4), caractérisé en ce que les pierres de lavage (2) ont la forme d'un tronc de cône, la direction du rétrécissement des pierres de lavage (2) en tronc de cône devant être dirigée vers l'intérieur du récipient.
- Récipient selon la revendication 1, caractérisé en ce que l'ouverture (5) prévue pour la coulée est formée à travers une busette (1).
- Récipient selon la revendication 2, caractérisé en ce que les pierres de lavage (2) perméables aux gaz sont disposées tout autour de la busette (1).
- Récipient selon l'une des revendications 2 ou 3, caractérisé en ce que la busette (1) est munie de quatre pierres de lavage (2) décalées de 90° les unes par rapport aux autres.
- Récipient destiné à recevoir de l'acier liquide ou de la fonte de fer, constitué essentiellement d'un manteau en acier et d'un garnissage en matériau réfractaire, une ouverture étant prévue à un endroit défini pour la coulée, plusieurs pierres de lavage perméables aux gaz étant prévues autour de l'ouverture (5) prévue pour la coulée, à l'aide desquelles un gaz, empêchant la formation de tourbillons creux lors de la coulée de l'acier ou de la fonte de fer, est introduit à contre-courant de la direction de coulée (3) de l'acier ou de la fonte de fer dans la cuve d'acier ou la cuve de fonte de fer (4), caractérisé en ce que les pierres de lavage (2) à l'état monté sont orientées, du point de vue de leur direction longitudinale, de telle sorte que cette direction longitudinale coupe l'axe médian de l'ouverture (5) au-dessus de cette ouverture.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19820727 | 1998-05-11 | ||
DE19820727A DE19820727A1 (de) | 1998-05-11 | 1998-05-11 | Gefäß zur Aufnahme von flüssigem Stahl |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0956917A1 EP0956917A1 (fr) | 1999-11-17 |
EP0956917B1 true EP0956917B1 (fr) | 2004-09-29 |
Family
ID=7867168
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99109152A Expired - Lifetime EP0956917B1 (fr) | 1998-05-11 | 1999-05-10 | Récipient métallurgique |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0956917B1 (fr) |
AT (1) | ATE277708T1 (fr) |
DE (2) | DE19820727A1 (fr) |
ES (1) | ES2230765T3 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EA011370B1 (ru) * | 2007-08-17 | 2009-02-27 | Общество С Ограниченной Ответственностью "Тмт" | Устройство для рафинирования металла в промежуточном ковше |
CN106978519A (zh) * | 2017-04-21 | 2017-07-25 | 东北大学 | 一种吹氩气防止钢包出钢过程中漩涡卷渣的方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT340620B (de) * | 1975-02-25 | 1977-12-27 | Voest Ag | Einrichtung zur behandlung von metallschmelzen wahrend des stranggiessens mit spulgas |
GB2149699B (en) * | 1983-11-18 | 1987-03-11 | Uss Eng & Consult | Method and apparatus for avoiding vortexing in a bottom pour vessel |
AT383529B (de) * | 1985-10-24 | 1987-07-10 | Voest Alpine Ag | Einrichtung zum vergiessen von schmelzen |
LU86816A1 (fr) * | 1987-03-19 | 1988-11-17 | Arbed | Dispositif pour vidanger des recipients metallurgiques |
DE19520897C1 (de) * | 1995-06-01 | 1996-10-31 | Mannesmann Ag | Strangguß-Verteilerrinne |
-
1998
- 1998-05-11 DE DE19820727A patent/DE19820727A1/de not_active Withdrawn
-
1999
- 1999-05-10 EP EP99109152A patent/EP0956917B1/fr not_active Expired - Lifetime
- 1999-05-10 AT AT99109152T patent/ATE277708T1/de active
- 1999-05-10 ES ES99109152T patent/ES2230765T3/es not_active Expired - Lifetime
- 1999-05-10 DE DE59910622T patent/DE59910622D1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE19820727A1 (de) | 1999-11-25 |
ES2230765T3 (es) | 2005-05-01 |
EP0956917A1 (fr) | 1999-11-17 |
DE59910622D1 (de) | 2004-11-04 |
ATE277708T1 (de) | 2004-10-15 |
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