EP0025028B2 - Position de poche pour effectuer des traitements métallurgiques de bains d'acier en fusion - Google Patents

Position de poche pour effectuer des traitements métallurgiques de bains d'acier en fusion Download PDF

Info

Publication number
EP0025028B2
EP0025028B2 EP19800890091 EP80890091A EP0025028B2 EP 0025028 B2 EP0025028 B2 EP 0025028B2 EP 19800890091 EP19800890091 EP 19800890091 EP 80890091 A EP80890091 A EP 80890091A EP 0025028 B2 EP0025028 B2 EP 0025028B2
Authority
EP
European Patent Office
Prior art keywords
ladle
cover
lance
stand
pan
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
Application number
EP19800890091
Other languages
German (de)
English (en)
Other versions
EP0025028A1 (fr
EP0025028B1 (fr
Inventor
Aktiengesellschaft Voest-Alpine
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Voestalpine AG
Original Assignee
Voestalpine AG
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 Voestalpine AG filed Critical Voestalpine AG
Publication of EP0025028A1 publication Critical patent/EP0025028A1/fr
Application granted granted Critical
Publication of EP0025028B1 publication Critical patent/EP0025028B1/fr
Publication of EP0025028B2 publication Critical patent/EP0025028B2/fr
Expired legal-status Critical Current

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
    • 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
    • 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
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/18—Door frames; Doors, lids or removable covers

Definitions

  • the invention relates to a ladle stand for carrying out metallurgical treatments of steel melts, in particular for post-treatment after freshening, for deoxidation, adjustment of the alloy contents, desulfurization and separation of undesirable inclusions, with a ladle which can be brought into position and with a lift which can be brought into position via the ladle mouth. and lowerable cover, which has one or more passage openings for the passage of treatment agents leading lances mounted on a lance carrier.
  • Increasing demands on steel qualities increasingly require post-treatment of the molten steel in a pan before casting.
  • the lids which contain one or more passages for temperature measuring lances and immersion lances for blowing in solids and for taking samples, must be placed on the pan before the treatment and removed from the pan after the treatment.
  • a device for mechanically controlled placement and lifting of pouring ladle deco is known for example from DE-AS 2457976.
  • the pan is brought into the treatment stand under a lid hanging from a crossbar of a lifting construction, the lid is locked to the mouth of the pan and, after treatment, the pan is returned in reverse order to loosen the lid.
  • the invention aims to avoid the disadvantages and difficulties described and has as its object to create a ladle stand of the type mentioned that can be installed in existing steelworks and does not constitute an obstacle to a quick change of worn lances.
  • two suspension points are formed by lifting cylinders arranged on the upper structure and articulated on the lid on the one hand, and the third suspension point by a cable pull which guides the cable drum arranged on the upper structure with a hook attached to the lid.
  • the pan lid When the pan lid is swiveled, it moves out of the area of the axis (s) of the lance (s), so that it is possible to change worn lances below the work platform.
  • the work platform remains free of space-consuming lance changing devices.
  • Another advantage of the invention is that no additional crane is required for placing the pan lid on the pan or lifting it off the pan. This avoids waiting times that can have consequences, even until the melting operation starts.
  • the lid made from a steel slab of at least about 100 mm thick, can expediently be placed on the mouth of the pan by means of a circumferential ring.
  • FIG. 1 shows a front view of the pan in the treatment position with the pan lid raised
  • FIG. 2 shows a top view of the working platform with the pan lid partially pivoted without pan
  • FIG. 3 shows a side view of the pan according to the invention Shows pan stand with also partially pivoted pan lid.
  • a pan 1, which contains the melt 2 to be treated, is picked up by a pan transport carriage 3 and moved on rails 4 into the pan stand, where treatments of the type mentioned at the outset are carried out on the melt 2.
  • This ladle metallurgy is carried out with the help of one or more lances 5, the ladle 1 having to be covered by a ladle cover 6 during the treatments in order to avoid excessive stress on the operating personnel and the systems from heat and smoke.
  • the lid 6 is made of a steel slab with a thickness of at least 100 mm and a lateral circumferential ring 7 of approximately 200 mm in height and is placed on the pan mouth 8.
  • the melt 2 may reach a maximum of level 9, so that there is a distance of at least 500 mm to the mouth 8 of the pan. This ensures that the lid 6 without fire Ste delivery can be made without there being a risk that the cover 6 warps during the treatment processes. This means there is no need to heat and keep the refractory lining between the individual treatments.
  • the pan lid 6 is suspended at three suspension points 10, 11, 12 on the upper structure 13 above the pan level. At the two points 10 and 11, the suspension is carried out by means of lifting cylinders 14, which are articulated both in the suspension points 10 and 11 with the socket cover 6 and with the upper structure 13 at the points 15, 16.
  • the third suspension 12 is designed as a cable pull 17 in such a way that a cable drum 18 fastened to the upper structure 13 and driven by an electric motor is connected via a cable 19 to a deflection roller 20 and carries the pan lid 6 at the suspension point 12 via a hook 21. With the help of the lifting cylinder 14 and the cable 17, the pan lid 6 can be raised and lowered in the direction of arrow 22, the lifting devices being dimensioned such that they are able to detach the pan lid 6 from the pan even in the event of bear formation .
  • the pan lid 6 can be pivoted into an upright position after the lance 5 has been lifted out of the pan lid 6 along the lance carrier 23 and the pan transport carriage 3 has been removed from the pan position.
  • the cable 17 is actuated and the cable 19 is extended, as a result of which the cover 6 lowers at the suspension point 12.
  • the two lifting cylinders 14 remain in position so that the suspension points 10 and 11 represent the pivot points of the pivoting movement.
  • FIGS. 3 and 3 the treatment position of the (extended) pan 1 being shown in broken lines in FIG.
  • the pivoting of the lid 6 when the pan 1 is extended has the purpose of making it possible to change the lance 5.
  • the lance 5 is removed from the lance carrier 23 in the lowered position after loosening a clamp closure 24 and moved along the guide rail 25.
  • the lance 5 is picked up by a lance lifting device 26, which can be moved on rails 27 on the upper structure 13, and brought to the lance parking space 28 located laterally from the treatment position.
  • a new lance 5 is inserted in the reverse order.
  • the cover 6 is then pivoted back into the horizontal position by actuating the cable 17, and the pan 1 is brought into the treatment position on the pan trolley 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Claims (3)

1. Poste de poche pour effectuer des traitements métallurgiques de bains d'acier en fusion (2), en particulier pour le traitement ultérieur après l'affinage, pour la désoxydation, le réglage des teneurs en éléments d'alliage, la désulfuration et l'élimination d'inclusions indésirables avec une poche (1) pouvant être amenée dans le poste, et avec un couvercle (6) que l'on peut soulever et abaisser, qui peut être amené en place au-dessus de la gueule (8) de la poche, qui présente une ou plusieurs ouvertures de passage (29) pour y faire passer des lances (5) conductrices d'agents de traitement, montées sur un support de lances (23), caractérisé en ce que:
a) le couvercle (6) est suspendu à la construction supérieur (13) du poste de poche, en trois points de suspension (10, 11, 12) au moyen desquels le couvercle (6), après retrait de la ou des lance(s) (5) et après que la poche (1) ait été sortie du poste à l'aide d'un chariot de transport de poche, peut être basculé de sa position horizontale vers le bas en une position dressée;
b) après basculement du couvercle (6) dans sa position dressée, la lance (5) dans la région de la poche peut être dégagée du support de lances (23) et peut être amenée en un point (28) de dépôt des lances, ainsi qu'être ramenée de celui-ci.
2. Poste de poche suivant la revendication 1, caractérisé en ce que deux points de suspension (10, 11) sont formés par des cylindres de levage (14) montés à articulation d'un côté sur la construction supérieure (13) et d'autre part sur le couvercle (6) et en ce que le troisième point de suspension (12) est formé par une transmission à câble (17) que commande, par un crochet (21) fixé au couvercle (6), le tambour à câble (18) monté sur la construction supérieure (13).
3. Poste de poche suivant la revendication 1, caractérisé en ce que le couvercle (6) fait d'une brame d'acier d'une épaisseur d'au moins environ 100 mm, peut être posé sur la gueule (8) de la poche par un anneau périphérique (7).
EP19800890091 1979-08-24 1980-08-13 Position de poche pour effectuer des traitements métallurgiques de bains d'acier en fusion Expired EP0025028B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT5690/79 1979-08-24
AT569079A AT361961B (de) 1979-08-24 1979-08-24 Pfannenstand zur durchfuehrung metallurgischer behandlungen von stahlschmelzen

Publications (3)

Publication Number Publication Date
EP0025028A1 EP0025028A1 (fr) 1981-03-11
EP0025028B1 EP0025028B1 (fr) 1982-11-03
EP0025028B2 true EP0025028B2 (fr) 1985-11-06

Family

ID=3578585

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19800890091 Expired EP0025028B2 (fr) 1979-08-24 1980-08-13 Position de poche pour effectuer des traitements métallurgiques de bains d'acier en fusion

Country Status (3)

Country Link
EP (1) EP0025028B2 (fr)
AT (1) AT361961B (fr)
DE (1) DE3061038D1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112725562A (zh) * 2021-01-28 2021-04-30 龙南龙钇重稀土科技股份有限公司 喂线站
CN116037897B (zh) * 2023-04-03 2023-05-30 内蒙金属材料研究所 一种铝合金铸锭浇铸设备及其工艺
CN119772156B (zh) * 2025-03-11 2025-06-17 秦皇岛泰科科技开发有限公司 鱼雷罐铁水运输车应急加揭盖驱动装置及方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU30923A1 (fr) *
DE1067984B (fr) * 1959-10-29
DE2454776B2 (de) * 1974-11-15 1976-09-02 Mannesmann AG, 4000 Düsseldorf Anlage zum einbringen von behandlungsmitteln in metallschmelzen
DE2457916C3 (de) * 1974-12-05 1979-01-25 Mannesmann Ag, 4000 Duesseldorf Vorrichtung zum mechanisch gesteuerten Aufsetzen und Abheben von GieBpfannendeckeln

Also Published As

Publication number Publication date
DE3061038D1 (en) 1982-12-09
ATA569079A (de) 1980-09-15
EP0025028A1 (fr) 1981-03-11
EP0025028B1 (fr) 1982-11-03
AT361961B (de) 1981-04-10

Similar Documents

Publication Publication Date Title
DE2709727A1 (de) Einrichtung zum auswechseln von giessrohren an giessgefaesse beim stranggiessen
WO2005118182A1 (fr) Installation de coulee continue comprenant au moins un robot, et procede pour faire fonctionner une installation de coulee continue comprenant au moins un robot
DE2944269A1 (de) Ofengefaess eines lichtbogenofens
DE2256269A1 (de) Metallerzeugungsanlage mit mindestens einem kippbaren konverter
EP2281166A1 (fr) Installation de four
EP0025028B1 (fr) Position de poche pour effectuer des traitements métallurgiques de bains d'acier en fusion
DE230180T1 (de) Verfahren und vorrichtung zum unterhalten der auskleidung eines ofengefaesses.
EP0005692B1 (fr) Installation de conversion de métal avec un convertisseur basculant
DE2935297C2 (de) Anlage zum Beschicken von Lichtbogenöfen
EP0468950A2 (fr) Installation pour la production de métaux en fusion
EP0760395B1 (fr) Installation pour le transport de métal liquide dans la halle de coulée d'un four à cuve et procédé pour le service de cette installation
DE1207554B (de) Wahlweise um zwei verschiedene Kippachsen kippbarer rinnenloser Induktions-Tiegelofen
EP0009259B1 (fr) Dispositif de support de poches pour une installation de coulée continue
EP0006084B1 (fr) Dispositif de captage et d'évacuation des gaz d'échappement
DE7833497U1 (de) Schmelzenbehandlungsvorrichtung mit einem laenglichen, kippbaren behandlungsgefaess
DE2506704C3 (de) Metallschmelzanlage mit einem Behandlungsstand für die Einstellung der Analyse von Metallschmelzen, insbesondere für die Entschwefelung flüssigen Roheisens oder flüssigen Rohstahls
DE669741C (de) Vorrichtung zum Herstellen von Gussbloecken
EP0039820B1 (fr) Dispositif de transport du métal liquide dans une installation de coulée continue
DE865942C (de) Heizbare Rinne zum Giessen von Metallen und Legierungen nach dem Stranggiessverfahren
DE2601984C2 (de) Traverse mit Halteelementen für eine Gießpfanne
EP0073537A1 (fr) Support du conduit d'évacuation des gaz d'un four à arc
DE202013103865U1 (de) Entfernvorrichtung für Schlacke
DD232929A5 (de) Anlage mit einem feuerfest ausgekleideten metallurgischen gefaess
DE2457916A1 (de) Giesspfanne mit aufsetzbarem deckel und vorrichtung zum aufsetzen, abheben, ver- und entriegeln des deckels
AT207054B (de) Vorrictung zum Abgießen von flüssigem Metall aus kippbaren metallurgischen Öfen, insbesondere Frischtiegeln

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): BE DE LU SE

17P Request for examination filed

Effective date: 19810414

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): BE DE LU SE

REF Corresponds to:

Ref document number: 3061038

Country of ref document: DE

Date of ref document: 19821209

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19830804

Year of fee payment: 4

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19830831

26 Opposition filed

Opponent name: STANDARD - MESSO DUISBURG GESELLSCHAFT FUER CHEMIE

Effective date: 19830801

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19840630

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19840713

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19840930

Year of fee payment: 5

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form
AK Designated contracting states

Kind code of ref document: B2

Designated state(s): BE DE LU SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19880814

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19880831

BERE Be: lapsed

Owner name: VOEST-ALPINE A.G.

Effective date: 19880831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19890503

EUG Se: european patent has lapsed

Ref document number: 80890091.4

Effective date: 19890510