EP1196728A1 - Method and device for emptying metallurgic melting vessels by tipping - Google Patents

Method and device for emptying metallurgic melting vessels by tipping

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Publication number
EP1196728A1
EP1196728A1 EP00945702A EP00945702A EP1196728A1 EP 1196728 A1 EP1196728 A1 EP 1196728A1 EP 00945702 A EP00945702 A EP 00945702A EP 00945702 A EP00945702 A EP 00945702A EP 1196728 A1 EP1196728 A1 EP 1196728A1
Authority
EP
European Patent Office
Prior art keywords
tilting
foundation
furnace
overflow edge
melting
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.)
Granted
Application number
EP00945702A
Other languages
German (de)
French (fr)
Other versions
EP1196728B1 (en
Inventor
Manfred Schubert
Peter Starke
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.)
SMS Siemag AG
Original Assignee
SMS Demag 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 SMS Demag AG filed Critical SMS Demag AG
Publication of EP1196728A1 publication Critical patent/EP1196728A1/en
Application granted granted Critical
Publication of EP1196728B1 publication Critical patent/EP1196728B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/06—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces with movable working chambers or hearths, e.g. tiltable, oscillating or describing a composed movement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/08—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces heated electrically, with or without any other source of heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/06—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces with movable working chambers or hearths, e.g. tiltable, oscillating or describing a composed movement
    • F27B3/065—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces with movable working chambers or hearths, e.g. tiltable, oscillating or describing a composed movement tiltable
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
    • F27B3/19—Arrangements of devices for discharging

Definitions

  • the invention relates to a method and an apparatus for emptying metallurgical melting vessels by tilting, such as, for example, electric arc melting furnaces and electrical row melting furnaces, with an underframe frame resting on a foundation, a tilting device, a closable tap hole arranged in the furnace floor and one on the side of the furnace arranged slag overflow edge.
  • these metallurgical melting vessels are usually equipped with a tilting device, by means of which the entire melting vessel is brought into an oblique position from its originally horizontal basic position.
  • the tilting cradle of the furnace is designed in the form of a circular arc and is supported on rollers which are rotatably mounted in a frame resting on the furnace foundation. To stabilize the furnace, it is additionally supported by at least one hydraulic tilt cylinder. Due to the described design of the melting vessel, it can be tilted in both directions for slagging and steel tapping, with the center point of the scrap feed chute also being the center of rotation of the melting vessel during the tilting movement. Furthermore, a cam is attached to the tilting cradle mounted on the rollers in a defined area, which, when a tilting area is exceeded, abuts on the scraper side on the roller and slides upwards along it.
  • a disadvantage of these known designs of the tilting devices with an underframe frame that is supported on cradles is that the position of the tap opening and slag overflow edge changes greatly during tilting and leads, for example, to large distances between the melting vessel and the tap opening and thus the nitrogen content during tapping favored.
  • the tilting cylinders that stabilize the furnace mounted on rollers are adversely impacted by the shocks and vibrations caused during the charging and melting process during furnace operation.
  • the object of the invention is, based on the known prior art, to provide a method and a device for emptying metallurgical melting vessels by tilting, by means of which the disadvantages described, in particular the shifting of the position of the opening and the slag overflow edge during the tilting process, are largely avoided.
  • one side of the lower furnace frame of the melting vessel is raised from its foundation supports, on which the lower furnace frame rests in the basic position of the melting vessel, and is pivoted about the opposite foundation supports as a fulcrum or axis of rotation.
  • the foundation supports which are arranged at the upper end of columnar foundations, are bowl-shaped. In this bowl-shaped foundation supports, the lower furnace frame is supported with its support elements which are rotatable in the foundation supports.
  • the columnar foundations are assigned tilting cylinders, which make it possible to lift any single side of the lower furnace frame or the entire melting vessel, with a tilting movement (rotary movement) over the respective opposite foundation supports as the pivot point or axis of rotation.
  • the tap opening and the slag overflow are in the immediate vicinity Arranged near this axis of rotation, so that during the tilting process advantageously no or only an insignificant ' change in the position of the tap opening and slag overflow edge takes place.
  • the tap opening and slag overflow edge are arranged on the melting vessel in such a way that both slag removal and emptying of the melt are possible by a tilting movement to only one side.
  • the tap opening is advantageously arranged such that it is in the basic position of the melting vessel above the level of the remaining liquid sump remaining after the tap.
  • the tilting cylinders which have to support part of the furnace weight during the tilting process and are of correspondingly large dimensions, are completely relieved of load when the melting vessel is in the basic position, in which the melting vessel rests on all foundation supports.
  • Fig. 1 is a melting vessel according to the invention in its
  • Fig. 2 shows a melting vessel corresponding to Fig. 1 for
  • a melting vessel 1 according to the invention is shown in its basic position.
  • the melting vessel 1 rests here with the support elements 8 of the sub-furnace 2 on shell-shaped foundation supports 7, which form the upper end of pillar-shaped foundations 6.
  • a tilt cylinder 3 which is completely relieved in the basic position shown, since the lower furnace frame 2 was resting on all the existing Fudamentauf 7.
  • the foundations 6 are arranged with their foundation support 7 so that they are as close as possible to the
  • the melting vessel 1 is lifted or tilted for lifting off by lifting the lower furnace frame 2 by means of the tilt cylinders 3 arranged on the right. While the right part of the furnace frame 2 with the tap opening 4 stands out from the foundation supports, the left part of the furnace frame 2 rotates with its support elements 8 within the left-hand foundation supports 7, which thus represent the pivot point or the axis of rotation.
  • the slag overflow edge 5 hardly changes its position with respect to the starting position in the basic position according to FIG. 1 due to the tilting process shown, since the slag overflow edge 5 is in the immediate vicinity the axis of rotation of the foundation supports 7 is arranged.
  • FIG. 3 the tilt position to the opposite side is shown in FIG. 2.
  • the left side of the lower furnace frame 2 is raised in order to discharge the melt from the melting vessel 1 via the tap opening 4.
  • the tap opening 4 practically coincides with the axis of rotation of the foundation supports 7, the position of the tap opening 4 is hardly changed by the tilting movement.
  • the tilting is shown on two opposite sides.
  • the design of the tilting device according to the invention also allows the tilting process to be carried out on any side, which can be advantageous, for example, for repairs and maintenance work.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Furnace Details (AREA)
  • Processing Of Solid Wastes (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

The invention relates to the emptying of melting vessels (1) by tipping. According to the invention, the melting vessel (1) is placed on column-shaped bases (6). During the tipping process, the melting vessel (1) is raised at the side and the base supports (7) of the opposite side are used as the pivot or axis of rotation. This ensures that the discharge opening (4) and the slag overflow edge (5) are not moved very far from their original position.

Description

Verfahren und Vorrichtung zum Entleeren von metallurgischenMethod and device for emptying metallurgical
Schme Lzgef äßen durch KippenFlame vessels by tipping
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Entleeren von metallurgischen Schmelzgefäßen durch Kippen,, wie beispielsweise Elekt ro-Lichtbogenschmelzöf en und Elekt rowiderst andsschmelzöfen, mit auf einem Fundament aufliegenden Unterofenrahmen, einer Kippvorrichtung, einer im Ofenboden angeordneten verschließbaren Abstichöffnung und einer seitlich am Ofen angeordneten Schlackenüberlaufkante.The invention relates to a method and an apparatus for emptying metallurgical melting vessels by tilting, such as, for example, electric arc melting furnaces and electrical row melting furnaces, with an underframe frame resting on a foundation, a tilting device, a closable tap hole arranged in the furnace floor and one on the side of the furnace arranged slag overflow edge.
Bei der Durchführung von thermischen metallurgischen Reaktionen an Metallen in metallurg schen Schmelzgefäßen liegen nach Abschluss dieser Reaktionen die Metalle in schmelzflüssiger Form vor, überschichtet mit schmelzflüssiger Schlacke. Zur Abschlackung sowie zur Entleerung der Schmelze in ein Gießgefäß sind diese metallurgischen Schmelzgefäße zumeist mit einer Kippvorrichtung ausgestattet, durch die das gesamte Schmelzgefäß aus seiner ursprünglich waagerechten Grundstellung in eine schräge Lage gebracht wird.When thermal metallurgical reactions are carried out on metals in metallurgical melting vessels, after the completion of these reactions, the metals are in molten form, covered with molten slag. For slag removal and for emptying the melt into a casting vessel, these metallurgical melting vessels are usually equipped with a tilting device, by means of which the entire melting vessel is brought into an oblique position from its originally horizontal basic position.
Bei einem aus der DE 32 41 987 C2 bekannten Drehstrom-Lichtbogenofen sitzt das Ofengefäß mit seinem Unterofenrahmen auf zwei Kippwiegen auf. Beim Kippen des Ofens rollt die verzahnte, kreisförmig ausgeführte Kippwiege auf einem horizontalen, gleichfalls verzahnten Unterbau ab, wobei nachteilig die Abstichöffnung während des Kippens vom Ofenmittelpunkt wegwandert.In a three-phase arc furnace known from DE 32 41 987 C2, the furnace vessel sits on two tilting cradles with its sub-furnace frame. When the furnace is tilted, the toothed, circular tilting cradle rolls up a horizontal, likewise toothed substructure, the tap opening disadvantageously migrating away from the center of the furnace during tilting.
Bei einer aus der DE 42 44 228 C2 bekannten Ausführung eines Schmelzgef ßes ist die Kippwiege des Ofens kreisbogenförmig ausgeführt und auf Laufrollen abgestützt, die in einem auf dem Ofenfundament aufliegenden Fundament rahmen drehbar gelagert sind. Zur Stabilisierung des Ofens wird dieser zusätzlich durch mindestens einen hydraulischen Kippzylinder abgestützt. Durch die beschriebene Ausbildung des Schmelzgefäßes ist es zum Abschlacken und zum Stahlabstich nach beiden Richtungen kippbar, wobei der Schur renmi ttelpunkt der Schrottaufgabeschurre auch der Rolldrehpunkt des Schmelzgef ßes während der Kippbewegung ist. Weiterhin ist an der auf den Laufrollen lagernden Kippwiege in einem definierten Bereich ein Nocken angebracht, der bei überschreiten eines Kippbereiches an der Abschlacksei te an der Laufrolle anliegt und an dieser entlang nach oben gleitet.In a version of a melting vessel known from DE 42 44 228 C2, the tilting cradle of the furnace is designed in the form of a circular arc and is supported on rollers which are rotatably mounted in a frame resting on the furnace foundation. To stabilize the furnace, it is additionally supported by at least one hydraulic tilt cylinder. Due to the described design of the melting vessel, it can be tilted in both directions for slagging and steel tapping, with the center point of the scrap feed chute also being the center of rotation of the melting vessel during the tilting movement. Furthermore, a cam is attached to the tilting cradle mounted on the rollers in a defined area, which, when a tilting area is exceeded, abuts on the scraper side on the roller and slides upwards along it.
Nachteilig bei diesen bekannten Ausführungen der Kippvorrichtungen mit einem auf Wiegen sich abstützenden Unterofenrahmen ist, dass sich die Lage von Abstichöffnung und Schlackenüberlaufkante beim Kippen stark verändert und beispielsweise zu großen Abständen zwischen dem Schmelzgefäß und der Abstichöffnung führt und damit die St i ckstoff aufnähme während des Abstichs begünstigt. Darüber hinaus werden die den auf Laufrollen gelagerten Ofen stabilisierenden Kippzylinder während des Ofenbetriebs mit den beim Chargier- und Schmelzprozess verursachten Stößen und Vibrationen nachteilig beaufschlagt . Aufgabe der Erfindung ist es, ausgehend vom bekannten Stand der Technik, ein Verfahren und eine Vorrichtung zum Entleeren von metallurgischen Schmelzgefäßen durch Kippen anzugeben, durch die die geschilderten Nachteile, insbesondere die Lageverschiebung von Abst i chδffnung und Schlackenüberlaufkante während des Kippvorgangs weitgehend vermieden werden.A disadvantage of these known designs of the tilting devices with an underframe frame that is supported on cradles is that the position of the tap opening and slag overflow edge changes greatly during tilting and leads, for example, to large distances between the melting vessel and the tap opening and thus the nitrogen content during tapping favored. In addition, the tilting cylinders that stabilize the furnace mounted on rollers are adversely impacted by the shocks and vibrations caused during the charging and melting process during furnace operation. The object of the invention is, based on the known prior art, to provide a method and a device for emptying metallurgical melting vessels by tilting, by means of which the disadvantages described, in particular the shifting of the position of the opening and the slag overflow edge during the tilting process, are largely avoided.
Die gestellte Aufgabe wird bei metallurgischen Schmelzgefäßen der vorstehend genannten Art mit den kennzeichnenden Merkmalen der Ansprüche 1 und 2 gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen angegeben.The object is achieved in metallurgical melting vessels of the type mentioned above with the characterizing features of claims 1 and 2. Advantageous embodiments of the invention are specified in the subclaims.
Gemäß der Erfindung wird eine Seite des Unterofenrahmens des Schmelzgefäßes von seinen Fundamentauflagen, auf denen der Unterofenrahmen in der Grundstellung des Schmelzgefäßes ruht, angehoben und um die gegenüberliegenden Fundamentauflagen als Drehpunkt bzw. Drehachse drehend gekippt. Die Fundamentauflagen, die am oberen Ende von säulenförmigen Fundamenten angeordnet sind, sind schalenförmig ausgebildet. In diesen scha lenfδrmigen Fundamentauflagen stützt sich der Unterofenrahmen mit seinen in den Fundamentauflagen drehbar ausgebildeten Stützelementen ab.According to the invention, one side of the lower furnace frame of the melting vessel is raised from its foundation supports, on which the lower furnace frame rests in the basic position of the melting vessel, and is pivoted about the opposite foundation supports as a fulcrum or axis of rotation. The foundation supports, which are arranged at the upper end of columnar foundations, are bowl-shaped. In this bowl-shaped foundation supports, the lower furnace frame is supported with its support elements which are rotatable in the foundation supports.
Den säulenförmigen Fundamenten sind Kippzylinder zugeordnet, durch die ein Anheben einer beliebigen einzelnen Seite des Unterofenrahmens bzw. des gesamten Schmelzgefäßes möglich wird, mit einer Kippbewegung (Drehbewegung) über die jeweils gegenüberliegenden Fundamentauflagen als Drehpunkt bzw. Drehachse.The columnar foundations are assigned tilting cylinders, which make it possible to lift any single side of the lower furnace frame or the entire melting vessel, with a tilting movement (rotary movement) over the respective opposite foundation supports as the pivot point or axis of rotation.
Nach einer vorteilhaften Ausgestaltung der Erfindung sind die Abst ichδffnung und die Schlackenüberlauf ante in unmittelbarer Nähe dieser Drehachse angeordnet, so dass während des Kippvorgangs mit Vorteil keine oder nur eine unwesentliche 'Änderung der Lage von Abstichöffnung und Schlackenüberlaufkante stattfi det.According to an advantageous embodiment of the invention, the tap opening and the slag overflow are in the immediate vicinity Arranged near this axis of rotation, so that during the tilting process advantageously no or only an insignificant ' change in the position of the tap opening and slag overflow edge takes place.
Nach einer weiteren vorteilhaften Ausgestaltung der Erfindung sind Abstichöffnung und Schlackenüberlaufkante so am Schmelzgefäß angeordnet, dass sowohl das Abschlacken als auch die Entleerung der Schmelze durch eine Kippbewegung nach nur einer Seite möglich sind. Hierbei ist mit Vorteil die Abstichöffnung so angeordnet, dass sie sich in der Grundstellung des Schmelzgefäßes oberhalb des Niveaus des nach dem Abstich verbleibenden flüssigen Restsumpfes befindet.According to a further advantageous embodiment of the invention, the tap opening and slag overflow edge are arranged on the melting vessel in such a way that both slag removal and emptying of the melt are possible by a tilting movement to only one side. In this case, the tap opening is advantageously arranged such that it is in the basic position of the melting vessel above the level of the remaining liquid sump remaining after the tap.
Die Kippzylinder, die während des Kippvorgangs einen Teil des Ofengewichts tragen müssen und entsprechend stark dimensioniert sind, sind während der Grundstellung des Schmelzgefäßes, bei der das Schmelzgefäß auf allen Fundamentauflagen ruht, vollständig entlastet.The tilting cylinders, which have to support part of the furnace weight during the tilting process and are of correspondingly large dimensions, are completely relieved of load when the melting vessel is in the basic position, in which the melting vessel rests on all foundation supports.
Weitere Vorteile, Einzelheiten und Merkmale der Erfindung werden nachfolgend an einem in Zeichnungsfiguren dargestellten Ausführungsbeispiel näher erläutert.Further advantages, details and features of the invention are explained in more detail below using an exemplary embodiment shown in the drawing figures.
Es zeigen:Show it:
Fig. 1 ein Schmelzgefäß nach der Erfindung in seinerFig. 1 is a melting vessel according to the invention in its
Grundstellung,Initial position,
Fig. 2 ein Schmelzgefäß entsprechend Fig. 1 zumFig. 2 shows a melting vessel corresponding to Fig. 1 for
Abschlacken gekippt. Fig ein Schmelzgefäß entsprechend Fig. 1 zur Schmelzenentleerung gekippt.Slag tilted. 1 tilted a melting vessel corresponding to FIG. 1 for melt emptying.
In Figur 1 ist ein Schmelzgefäß 1 entsprechend der Erfindung in seiner Grundstellung dargestellt. Das Schmelzgefäß 1 ruht hierbei mit den Stützelementen 8 des Unterofens 2 auf scha lenfδrmig ausgeb ldeten Fundamentauflagen 7, die den oberen Abschluss von säulenförmig ausgebildeten Fundamenten 6 bilden. In unmittelbarer Nähe der Fundamente 6 befindet sich jeweils ein Kippzylinder 3, der in der dargestellten Grundstellung vollständig entlastet ist, da der Unterofenrahmen 2 auf allen vorhandenen Fudamentauf lagen 7 ruht. Die Fundamente 6 sind mit ihrer Fundamentauflage 7 so angeordnet, dass sie möglichst nahe an derIn Figure 1, a melting vessel 1 according to the invention is shown in its basic position. The melting vessel 1 rests here with the support elements 8 of the sub-furnace 2 on shell-shaped foundation supports 7, which form the upper end of pillar-shaped foundations 6. In the immediate vicinity of the foundations 6 there is in each case a tilt cylinder 3 which is completely relieved in the basic position shown, since the lower furnace frame 2 was resting on all the existing Fudamentauf 7. The foundations 6 are arranged with their foundation support 7 so that they are as close as possible to the
Schlackenüberlaufkante 5 (in der Zeichnungsfigur links) und an die Abst i chδffnung 4 (in der Zeichnungsfigur rechts) heranrei chen.Slag overflow edge 5 (in the figure on the left) and reach the opening 4 (in the figure on the right).
In Figur 2 ist das Schmelzgefäß 1 durch Anheben des Unterofenrahmens 2 mittels der rechts angeordneten Kippzylinder 3 zum Abschlacken angehoben bzw. gekippt. Während sich der rechte Teil des Unterofenrahmens 2 mit der Abst chöffnung 4 von den Fundamentauflagen abhebt, dreht sich der linke Teil des Unterofenrahmens 2 mit seinen Stützelementen 8 innerhalb der Links angeordneten Fundamentauflagen 7, die so den Drehpunkt bzw. die Drehachse darstellen. Die Schlackenüberlaufkante 5 verändert durch den dargestellten Kippvorgang so gut wie nicht ihre Stellung gegenüber der Ausgangslage in der Grundstellung entsprechend Fig. 1, da die Schlackenüberlaufkante 5 in unmittelbarer Nähe der Drehachse der Fundamentauflagen 7 angeordnet ist.In FIG. 2, the melting vessel 1 is lifted or tilted for lifting off by lifting the lower furnace frame 2 by means of the tilt cylinders 3 arranged on the right. While the right part of the furnace frame 2 with the tap opening 4 stands out from the foundation supports, the left part of the furnace frame 2 rotates with its support elements 8 within the left-hand foundation supports 7, which thus represent the pivot point or the axis of rotation. The slag overflow edge 5 hardly changes its position with respect to the starting position in the basic position according to FIG. 1 due to the tilting process shown, since the slag overflow edge 5 is in the immediate vicinity the axis of rotation of the foundation supports 7 is arranged.
In Figur 3 ist die KippstelLung zur entgegengesetzten Seite entsprechend Fig. 2 dargestellt. Die linke Seite des Unterofenrahmens 2 ist angehoben, um über die Abstichöffnung 4 die Schmelze aus dem Schmelzgefäß 1 abzulassen. Auch in diesem Beispiel wird, da die Abstichöffnung 4 mit der Drehachse der Fundamentauflagen 7 praktisch übereinstimmt, die Lage der Abstichöffnung 4 durch die Kippbewegung so gut wie nicht verändert .In Figure 3, the tilt position to the opposite side is shown in FIG. 2. The left side of the lower furnace frame 2 is raised in order to discharge the melt from the melting vessel 1 via the tap opening 4. In this example, too, since the tap opening 4 practically coincides with the axis of rotation of the foundation supports 7, the position of the tap opening 4 is hardly changed by the tilting movement.
Im dargestellten Ausführungsbeispiel ist das Kippen nach zwei gegenüberliegenden Seiten dargestellt. Je nach Ausführungsform des Schmelzgefäßes 1 ist es gemäß der Erfindung auch möglich, nach nur einer Seite hin abzukippen. Die Ausbildung der Kippvorrichtung gemäß der Erfindung gestattet darüber hinaus, nach jeder beliebigen Seite den Kippvorgang durchzuführen, was beispielsweise für Reparaturen und Wartungsarbeiten von Vorteil sein kann. In the illustrated embodiment, the tilting is shown on two opposite sides. Depending on the embodiment of the melting vessel 1, it is also possible according to the invention to tilt to only one side. The design of the tilting device according to the invention also allows the tilting process to be carried out on any side, which can be advantageous, for example, for repairs and maintenance work.

Claims

Ans p rüc he Expectations
1. Verfahren zum Entleeren von metallurgischen Schmelzgefäßen durch Kippen, wie beispielsweise Elekt rol i chtbogenschme Izöfen und Elektrowiderstandsschmelzöfen, mit auf einem Fundament aufliegenden Unterofenrahmen, einer Kippvorrichtung, einer im Ofenboden angeordneten verschließbaren Abstichöf nung und einer seitlich am Ofen angeordneten Schlackenüberlaufkante, dadurch gekennzeichnet, dass das Schmelzgefäß (1) durch Anheben des der Abstichöffnung (4) bzw. der Sc lackenüberlaufkante (5) gegenüberliegenden Seite des Unterofenrahmens (2) seitlich von den Fundamentauflagen (7) gelöst wird und um die gegenüberliegenden Fundamentauflagen (7) als Drehpunkt bzw. Drehachse gekippt wird, wobei sich die Lage der Abstichöffnung (4) und/oder der1. A method for emptying metallurgical melting vessels by tilting, such as, for example, electric arc melting furnaces and electric resistance melting furnaces, with an underframe frame resting on a foundation, a tilting device, a closable tap hole arranged in the furnace floor and a slag overflow edge arranged on the side of the furnace, characterized in that the melting vessel (1) by raising the the tap opening (4) or the Sc paint overflow edge (5) opposite side of the lower furnace frame (2) is released laterally from the foundation rests (7) and around the opposite foundation rests (7) as fulcrum or axis of rotation is tilted, the position of the tap opening (4) and / or
Schlackenüberlaufkante (5) während des Kippvorgangs nicht oder nur unwesentlich verändern.Do not change the slag overflow edge (5) during the tipping process or only slightly change it.
2. Vorrichtung zum Entleeren von metallurgischen Schmelzgefäßen (1) durch Kippen, wie beispielsweise Elekt rolichtbogenschmelzöfen und2. Device for emptying metallurgical melting vessels (1) by tilting, such as electric arc melting furnaces and
Elekt rowiderstandsschmelzδfen, mit auf einem Fundament (6) aufliegenden Unterofenrahmen (2), einer Kippvorrichtung, einer im Ofenboden angeordneten verschließbaren Abst ichöff nung (4) und einer seitlich am Ofen (1) angeordnetenElectric row resistance melters, with an oven frame (2 ) resting on a foundation ( 6 ) , a tilting device, a closable opening in the oven bottom ( 4 ) and one on the side of the oven (1)
Schlackenüberlaufkante (5), zur Durchführung des Verfahrens nach Anspruch 1, gekennzeichnet durchSlag overflow edge (5) for carrying out the method according to claim 1, characterized by
- säulenförmige Fundamente (6) mit an ihrem oberen Ende schalenförmig ausgebildeten Fundamentauflagen (7), auf denen der Unterofenrahmen (2) in der Ofengrundstellung mit seinen an die Form der Fundamentauflagen (7) angepassten Stützelementen (8) drehbar gelagert ist und auf denen sich der Unterofenrahmen (2), die Fundamentauflagen (7) als Drehpunkte bzw. Drehachse nutzend, beim Kippvorgang mit einer Seite abstützt, und- Column-shaped foundations (6) with bowl-shaped foundation supports (7) at their upper end, on which the lower furnace frame (2) in the basic furnace position with its on the shape of the foundation supports (7) is adapted to be rotatably supported and on which the lower furnace frame (2), using the foundation supports (7) as pivot points or axis of rotation, is supported with one side during the tilting process, and
- den säulenförmigen Fundamenten (6) zugeordnete Kippzylinder (3) durch die der Unterofenrahmen (2) durch seitliches Anheben nach jeder Seite kippbar ist.- The columnar foundations (6) associated tilt cylinder (3) through which the furnace frame (2) can be tilted to each side by lifting laterally.
3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass die säulenförmigen Fundamente (6) mit ihren die Drehpunkte bzw. Drehachsen bildenden Fundamentauflagen (7) in unm ttelbarer Nähe der Unterkante der Abst ichδffnung (4) bzw. der Schlackenüberlaufkante (5) angeordnet sind.3. Device according to claim 2, characterized in that the columnar foundations (6) are arranged with their foundation supports (7) forming the pivot points or axes of rotation in the immediate vicinity of the bottom edge of the tap opening (4) or the slag overflow edge (5) .
4. Vorrichtung nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass die Abstichöffnung (4) und die Schlackenüberlaufkante (5) so am Schmelzgefäß (1) angeordnet sind, dass nur noch ein Kippen nach einer gemeinsamen Seite erforderlich ist.4. Apparatus according to claim 2 or 3, characterized in that the tap opening (4) and the slag overflow edge (5) are arranged on the melting vessel (1) in such a way that only a tilting towards a common side is required.
5. Vorrichtung nach einem oder mehreren der Ansprüche 2 bis 4, dadurch gekennzeichnet, dass in der Ofengrundstellung die Abstichöffnung (4) oberhalb des Niveaus des nach dem Abstich verbleibenden flüssigen Restsumpfes angeordnet ist. 5. The device according to one or more of claims 2 to 4, characterized in that in the basic furnace position, the tap opening (4) is arranged above the level of the remaining liquid sump remaining after tapping.
EP00945702A 1999-06-04 2000-06-05 Method and device for emptying metallurgic melting vessels by tipping Expired - Lifetime EP1196728B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19925550A DE19925550A1 (en) 1999-06-04 1999-06-04 Method and device for emptying metallurgical melting vessels by tilting
DE19925550 1999-06-04
PCT/EP2000/005089 WO2000075587A1 (en) 1999-06-04 2000-06-05 Method and device for emptying metallurgic melting vessels by tipping

Publications (2)

Publication Number Publication Date
EP1196728A1 true EP1196728A1 (en) 2002-04-17
EP1196728B1 EP1196728B1 (en) 2003-09-03

Family

ID=7910198

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00945702A Expired - Lifetime EP1196728B1 (en) 1999-06-04 2000-06-05 Method and device for emptying metallurgic melting vessels by tipping

Country Status (17)

Country Link
US (1) US6660219B1 (en)
EP (1) EP1196728B1 (en)
JP (1) JP2003501611A (en)
KR (1) KR20020016821A (en)
CN (1) CN1145006C (en)
AT (1) ATE249022T1 (en)
BR (1) BR0011316A (en)
CA (1) CA2373038A1 (en)
DE (2) DE19925550A1 (en)
EG (1) EG22082A (en)
ES (1) ES2206271T3 (en)
MX (1) MXPA01012410A (en)
PL (1) PL352108A1 (en)
TR (1) TR200103502T2 (en)
TW (1) TW451047B (en)
WO (1) WO2000075587A1 (en)
ZA (1) ZA200110292B (en)

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DE102005024924B8 (en) * 2005-05-23 2007-10-25 Strikowestofen Gmbh Melting or holding furnace
FR2902364B1 (en) * 2006-06-16 2012-04-27 Commissariat Energie Atomique METHOD FOR MANUFACTURING A THERMOSETTING POLYMER SEALANT FOR A RESERVOIR CONTAINING A PRESSURIZED FLUID, SUCH AS A COMPOSITE TANK, AND TANK
CN102126187B (en) * 2010-12-29 2012-05-23 天津立中车轮有限公司 Automatic sand pouring machine for hub
JP6024284B2 (en) * 2012-08-22 2016-11-16 大同特殊鋼株式会社 Electric furnace
CN110257588B (en) * 2019-07-04 2023-04-14 中冶京诚工程技术有限公司 Liquid metal smelting system and smelting method
CN112176149B (en) * 2019-07-04 2023-09-29 中冶京诚工程技术有限公司 Liquid metal refining device, liquid metal smelting system and refining method
CN111394532B (en) * 2020-05-19 2023-08-04 河北昊兴耐火炉料有限公司 High-strength prefabricated member for blast furnace swing chute and blast nozzle
CN112503537B (en) * 2020-11-27 2023-09-26 重庆商勤禹水环境科技有限公司 Waste salt melting furnace capable of removing slag in operation

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Also Published As

Publication number Publication date
MXPA01012410A (en) 2002-07-30
CA2373038A1 (en) 2000-12-14
TR200103502T2 (en) 2002-05-21
DE19925550A1 (en) 2000-12-07
BR0011316A (en) 2002-04-23
ZA200110292B (en) 2002-10-10
US6660219B1 (en) 2003-12-09
CN1353805A (en) 2002-06-12
PL352108A1 (en) 2003-07-28
WO2000075587A1 (en) 2000-12-14
EG22082A (en) 2002-07-31
TW451047B (en) 2001-08-21
ES2206271T3 (en) 2004-05-16
JP2003501611A (en) 2003-01-14
DE50003560D1 (en) 2003-10-09
KR20020016821A (en) 2002-03-06
ATE249022T1 (en) 2003-09-15
EP1196728B1 (en) 2003-09-03
CN1145006C (en) 2004-04-07

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