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EP1146976A1 - Device for pouring cast iron into pig moulds - Google Patents

Device for pouring cast iron into pig moulds

Info

Publication number
EP1146976A1
EP1146976A1 EP00901080A EP00901080A EP1146976A1 EP 1146976 A1 EP1146976 A1 EP 1146976A1 EP 00901080 A EP00901080 A EP 00901080A EP 00901080 A EP00901080 A EP 00901080A EP 1146976 A1 EP1146976 A1 EP 1146976A1
Authority
EP
European Patent Office
Prior art keywords
casting
pig
molten metal
station
mold
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
EP00901080A
Other languages
German (de)
French (fr)
Other versions
EP1146976B1 (en
Inventor
Volker Hille
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 Schloemann Siemag AG
Schloemann Siemag 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 Schloemann Siemag AG, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Publication of EP1146976A1 publication Critical patent/EP1146976A1/en
Application granted granted Critical
Publication of EP1146976B1 publication Critical patent/EP1146976B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D5/00—Machines or plants for pig or like casting
    • B22D5/04—Machines or plants for pig or like casting with endless casting conveyors

Definitions

  • the invention relates to a device for pouring molten metal, in particular cast iron, into ingot casting molds, comprising in a ingot casting machine an endless conveyor belt equipped with ingot casting molds for transporting the ingot casting molds from a casting station to an ingot emptying station, and vice versa, each ingot casting mold in the casting station as it passes through the casting device is filled with molten metal with the mold cavity pointing upwards, which is introduced into the mold cavities from a transport container via a guide element.
  • Pig casting machines are known. It is known that liquid pig iron is either fed into a steel mill after tapping in a blast furnace or, if it cannot be processed immediately, cast in the form of ingots, the so-called ingots, for storage or further transport. Pig iron pigs have different weights depending on the intended use, usually a pig weighs around 6 kg.
  • Generic casting machines are used for the production of pig iron.
  • a ingot casting machine which is composed of a casting station, at least one endless conveyor belt and an emptying station for the solidified ingots at the deflection point of the endless belt.
  • Several ingot molds or molds are attached to each endless conveyor belt. After pouring molten material into the ingot mold, it is transported to the emptying station, usually in an upward direction, by means of an inclined conveyor.
  • each ingot casting mold is automatically removed empties, and the solidified ingot is collected in suitable containers or on a conveyor belt.
  • the molten pig iron to be cast is poured from a transport vessel, for example a so-called torpedo car, into a fire-resistant, lined gutter which is slightly inclined towards the casting machine.
  • This channel ends over the molds running around the machine's casting belt.
  • the molten pig iron running through the channel falls freely into the mold over the end edge of the channel.
  • the height of this edge above the mold is relatively large.
  • the pouring jet strikes the full width of the mold, and therefore also the webs between the actual depressions for the ingots, the so-called mold troughs. This leads to iron being sprayed away, as a result of which the casting belt of the machine is continuously contaminated by adhering iron splashes and is ultimately impaired in its function, which necessitates undesired maintenance.
  • the thickness of the refractory layer at the bottom of the trough and its outer cladding made of sheet steel increases the drop height of the liquid iron into the mold and in this way increases the tendency to splash and overflow the mold.
  • the front edge of the channel is subject to considerable wear, so that the point of discharge of the liquid iron shifts disadvantageously in the horizontal and vertical during operation.
  • the trough has no storage capacity for liquid iron, so that on the one hand irregularities in the iron supply from the transport barrel, e.g. due to wear of the refractory material in the transport vessel, cannot be compensated for, and on the other hand bath movements in the melt, which are caused by a comparatively large fall of the iron from the transport vessel, cannot be dampened and apart from the conditions in the mold punch through.
  • the invention has for its object to improve and design a device for pouring molten metal, in particular cast iron, of the type mentioned in the preamble of claim 1 such that the aforementioned disadvantages, difficulties and limitations of the technology are overcome, the design of the device being such It should be uncomplicated and clear that it can be used on any existing casting machine, and this use is expressly not intended to be exclusively linked to pig iron as the material to be cast. Furthermore, the device according to the invention should meet the highest safety requirements when operating a casting machine.
  • the guide member as a distributor with a trough-like part for collecting the molten metal from the transport container to form a Amount of memory, as well as with a casting with at least one tubular spout, which are assigned to each other while leaving a communicating lower connection opening in a common siphon-like partition.
  • liquid iron is first poured from a transport trolley into a trough-like part of a distributor for collecting the jet of the molten metal, the distributor being divided into two parts by a siphon-like wall, namely into a collecting part for the jet of the molten metal from the transport container , in which turbulent flow conditions prevail, whereby in the front part, which is a tubular has a shaped spout, a calming of the melt bath occurs.
  • the tubular spout present in the bottom of this part can be guided as close to each individual ingot recess of the mold as the shaped edges allow.
  • the device according to the invention for pouring molten metal uses known construction principles in the continuous casting of steel, such as known distributor channels, while adapting to the special circumstances in a casting machine.
  • the spouts are subject to comparatively little wear and tear, the point of application in each mold trough changes only negligibly during operation.
  • the point of application of the liquid iron can be brought closer to the mold than with a channel construction.
  • the tendency to spray is reduced.
  • the cast part of the distributor at the top with a predeterminable amount of cast iron ensures a steady and even inflow of liquid metal.
  • the amount of memory in the distributor can bridge the times required for a change to a new transport container without the system having to be stopped in its function.
  • the principle of operation of the pouring device according to the invention is independent of the exact number of pouring tubes used and the shape of the distributor.
  • the device can therefore be used on any casting machine for liquid metal, which works on the principle of a pig casting machine for pig iron or other liquid metal.
  • the device for pouring molten metal, in particular cast iron, into ingot casting molds 1 comprises, in an ingot casting machine, an endless conveyor belt 2 equipped with ingot casting molds 1 for transporting the ingot casting molds from a casting station 3 to an ingot emptying station, and vice versa, each ingot casting mold 1 in the casting station 3 as it passes through Pouring device with the mold cavity facing upwards is filled with molten metal, which is introduced from a transport container 4 with a pouring jet 5 via a guide element into the mold cavities.
  • the guide element is designed as a distributor 6 with a trough-like part 7 for collecting the beam 5 of the molten metal from the transport container 4 to form a storage quantity 8, and with a casting 9 with at least one tubular spout 10, which leaves a communicating lower connection opening 11 free are assigned to each other in a common siphon-like partition wall 12.
  • the distributor 6 is arranged with its spout 10 at a comparatively short distance above the mold cavity of the casting molds l. This avoids splashing of liquid cast iron and thus contamination and damage to the endless conveyor belt 2 of the ingot casting machine. Because the distributor 6 contains a storage quantity 8 of liquid metal, in particular cast iron, it is necessary, for example, during a change of the transport container 4 or in the event of a fault in the ingot casting machine, to temporarily interrupt the escape of molten metal from the spout 10 and, in some cases, to interrupt the metal jet 5 may be possible.
  • a closure member 13 is associated with the tubular spout 10. The closure member 13 has a closure plug which can be placed from above through the molten bath 14 onto the pouring opening 10 and which is operatively connected to a remote-controlled trigger device 15.
  • the triggering device 15 is controlled by a control device 16 for monitoring the operation, such that it automatically closes the spout 10 in the event of an interruption in operation.
  • an operation monitoring unit 17 can preferably be assigned to the casting machine, which cooperates with the control device 16 of the casting station 3 in such a way that a corresponding change in the operation of the casting station is initiated when the operating condition of the casting machine changes or is disrupted.
  • a change in the bath height or the storage quantity 8 of liquid metal in the distributor 6 can be set.
  • the distributor 6 is assigned a device 18 for monitoring the height of the melt pool 8, which corrects the inclination of the transport container 4 accordingly if a predetermined height margin is exceeded or undershot. As a result, the outflowing cast steel 5 or the amount of outflowing molten metal is influenced.
  • the principle according to the invention of the casting device for molten metal, in particular cast iron, in ingot casting molds is independent of the number of casting tubes 10 used and of the shape of the distributor 6 or its trough-like part 7 and casting part 9.
  • the device can be used on any casting machine for liquid metal can be used, which works on the principle of a pig casting machine, for example for pig iron.
  • the use of the casting device according to the invention is of essential importance with regard to the development of new high-performance pig casting machines.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Casting Devices For Molds (AREA)

Abstract

The invention relates to a device for casting molten metal, notably cast iron, in pig moulds. In a pig casting machine said device comprises an endless conveyor belt (2) for transporting the pig moulds (1) from a casting station (3) to a pig mould stripping station and vice versa. In the casting station (3) each pig mould (1) is filled with molten metal as it passes through the casting device with its mould cavity pointing upwards. The molten metal is fed from a transported container (4) into the mould cavity via a guide element. The invention aims to improve such a device. To this end the guide element is configured as a distributor (6) having a tub-like part (7) for receiving the molten metal from the transported container (4) such that a stored quantity (8) is formed and has a casting part (9) with at least one tubular spout (10). The tub-like receiving part (7) and the casting part (9) are assigned to each other such that they communicate via a lower connecting hole (11) in a shared siphon-like internal separating wall (12).

Description

Vorrichtung zum Eingießen von Metallschmelze, insbesondere Gußeisen, in MasselgießformenDevice for pouring molten metal, in particular cast iron, into ingot casting molds
Die Erfindung betrifft eine Vorrichtung zum Eingießen von Metallschmelze, insbesondere Gußeisen, in Masselgießformen, umfassend in einer Masselgießmaschine ein mit Masselgießformen bestücktes Endlostransportband zum Transport der Masselgießformen von einer Gießstation zu einer Masselentleerungsstation, und umgekehrt, wobei jede Masselgießform in der Gießstation beim Durchlauf durch die Gießvorrichtung mit der Formmulde nach oben zeigend mit Metallschmelze gefüllt wird, die aus einem Transportbehälter über ein Leitorgan, in die Formmulden eingeleitet wird.The invention relates to a device for pouring molten metal, in particular cast iron, into ingot casting molds, comprising in a ingot casting machine an endless conveyor belt equipped with ingot casting molds for transporting the ingot casting molds from a casting station to an ingot emptying station, and vice versa, each ingot casting mold in the casting station as it passes through the casting device is filled with molten metal with the mold cavity pointing upwards, which is introduced into the mold cavities from a transport container via a guide element.
Masselgießmaschinen sind bekannt. Flüssiges Roheisen wird bekanntermaßen entweder nach dem Abstich im Hochofen mittels Pfannen einem Stahlwerk zugeführt oder, falls es nicht sofort weiterverarbeitet werden kann, in Form von Barren, den sogenannten Masseln, zur Lagerung bzw. zum weiteren Transport vergossen. Roheisenmasseln haben nach dem gewünschten Verwendungszweck unterschiedliche Gewichte, üblicherweise ist eine Massel etwa 6 kg schwer.Pig casting machines are known. It is known that liquid pig iron is either fed into a steel mill after tapping in a blast furnace or, if it cannot be processed immediately, cast in the form of ingots, the so-called ingots, for storage or further transport. Pig iron pigs have different weights depending on the intended use, usually a pig weighs around 6 kg.
Zur Herstellung von Roheisenmasseln kommen gattungsgemäße Masselgießmaschinen zur Anwendung. Bspw. beschreibt die noch unveröffentlichte Patentanmeldung P 198 35 824.5 eine Masselgießmaschine, die sich aus einer Gießstation, mindestens einem Endlostransportband sowie einer Entleerungsstation für die erstarrten Masseln am Umlenkpunkt des Endlosbandes zusammensetzt. An jedem Endlostransportband sind mehrere Masselgießform bzw. Kokillen angebracht. Nach dem Gießen von schmelzflüssigem Material in die Masselgießform wird diese zur Entleerungsstation transportiert, üblicherweise in Aufwärtsrichtung, mittels eines Schrägförderers. Beim Durchfahren des ersten Umlenkpunktes des Endlosbandes wird jede Masselgießform selbsttätig ent- leert, und die erstarrte Massel in geeigneten Behältern oder auf einem Transportband gesammelt.Generic casting machines are used for the production of pig iron. E.g. describes the as yet unpublished patent application P 198 35 824.5 a ingot casting machine, which is composed of a casting station, at least one endless conveyor belt and an emptying station for the solidified ingots at the deflection point of the endless belt. Several ingot molds or molds are attached to each endless conveyor belt. After pouring molten material into the ingot mold, it is transported to the emptying station, usually in an upward direction, by means of an inclined conveyor. When passing through the first deflection point of the endless belt, each ingot casting mold is automatically removed empties, and the solidified ingot is collected in suitable containers or on a conveyor belt.
Bei derartigen Masselgießmaschinen wird das zu vergießende flüssige Roheisen aus einem Transportgefäß, bspw. einem sogenannten Torpedowagen, in eine zur Gießmaschine hin leicht geneigte, feuerfest ausgekleidete Gießrinne gegossen. Diese Rinne endet über den im Gießband der Maschine umlaufenden Kokillen. Das durch die Rinne laufende flüssige Roheisen fällt dabei frei über die Endkante der Rinne in die Kokille. Die Höhe dieser Kante über der Kokille ist relativ groß. Bei dieser Art der Aufgabe des flüssigen Roheisens in die Kokille treten folgende Probleme auf:In such casting machines, the molten pig iron to be cast is poured from a transport vessel, for example a so-called torpedo car, into a fire-resistant, lined gutter which is slightly inclined towards the casting machine. This channel ends over the molds running around the machine's casting belt. The molten pig iron running through the channel falls freely into the mold over the end edge of the channel. The height of this edge above the mold is relatively large. The following problems arise with this type of feeding molten pig iron into the mold:
Der Gießstrahl trifft auf der vollen Breite der Kokille auf, demnach auch auf den Stegen zwischen den eigentlichen Vertiefungen für die Masseln, den sogenannten Formmulden. Dies führt zum Wegspritzen von Eisen, wodurch das Gießband der Maschine durch anhaftende Eisenspritzer laufend verunreinigt und schließlich in seiner Funktion beeinträchtigt wird, wodurch unerwünschter Wartungsaufwand erforderlich wird.The pouring jet strikes the full width of the mold, and therefore also the webs between the actual depressions for the ingots, the so-called mold troughs. This leads to iron being sprayed away, as a result of which the casting belt of the machine is continuously contaminated by adhering iron splashes and is ultimately impaired in its function, which necessitates undesired maintenance.
Bei Betriebsstörungen ist der Gießstrahl nicht kurzfristig unterbrechbar.In the event of malfunctions, the pouring stream cannot be interrupted for a short time.
Die Dicke der feuerfesten Schicht am Boden der Rinne und ihre äußere Verkleidung aus Stahlblech vergrößert die Fallhöhe des flüssigen Eisens in die Kokille und erhöht auf diese Weise die Neigung zum Spritzen und Überlaufen der Kokille.The thickness of the refractory layer at the bottom of the trough and its outer cladding made of sheet steel increases the drop height of the liquid iron into the mold and in this way increases the tendency to splash and overflow the mold.
Die Vorderkante der Rinne unterliegt einem nicht unerheblichen Verschleiß, so daß sich der Ablaufpunkt des flüssigen Eisens im Laufe des Betriebes in der Horizontalen und Vertikalen nachteilig verschiebt.The front edge of the channel is subject to considerable wear, so that the point of discharge of the liquid iron shifts disadvantageously in the horizontal and vertical during operation.
Die Rinne verfügt über keine Speicherkapazität für flüssiges Eisen, so daß einerseits Unregelmäßigkeiten der Eisenzuführung aus dem Transportge- faß, bspw. durch Verschleiß des feuerfesten Materials im Transportgefäß, nicht kompensiert werden können, und andererseits Badbewegungen in der Schmelze, die durch eine vergleichsweise große Fallhöhe des Eisens aus dem Transportgefäß bedingt sind, nicht gedämpft werden können und bis auf die Verhältnisse in der Kokille durchschlagen.The trough has no storage capacity for liquid iron, so that on the one hand irregularities in the iron supply from the transport barrel, e.g. due to wear of the refractory material in the transport vessel, cannot be compensated for, and on the other hand bath movements in the melt, which are caused by a comparatively large fall of the iron from the transport vessel, cannot be dampened and apart from the conditions in the mold punch through.
Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung zum Eingießen von Metallschmelze, insbesondere Gußeisen, der im Oberbegriff von Anspruch 1 genannten Art derart zu verbessern und auszugestalten, daß die vorgenannten Nachteile, Schwierigkeiten und Grenzen der Technik überwunden werden, wobei die Ausgestaltung der Vorrichtung derart unkompliziert und übersichtlich sein soll, daß sie an jeder vorhandenen Masselgießmaschine eingesetzt werden kann, und wobei dieser Einsatz ausdrücklich nicht ausschließlich an Roheisen als zu vergießendes Material gebunden sein soll. Weiterhin soll die Vorrichtung nach der Erfindung höchsten Sicherheitsanforderungen beim Betrieb einer Masselgießmaschine entsprechen.The invention has for its object to improve and design a device for pouring molten metal, in particular cast iron, of the type mentioned in the preamble of claim 1 such that the aforementioned disadvantages, difficulties and limitations of the technology are overcome, the design of the device being such It should be uncomplicated and clear that it can be used on any existing casting machine, and this use is expressly not intended to be exclusively linked to pig iron as the material to be cast. Furthermore, the device according to the invention should meet the highest safety requirements when operating a casting machine.
Zur Lösung der Aufgabe wird bei der Vorrichtung zum Eingießen von Metallschmelze, insbesondere Gußeisen, in Masselgießformen der im Oberbegriff von Anspruch 1 genannten Art mit der Erfindung vorgeschlagen, daß das Leitorgan als Verteiler mit einem wannenartigen Teil zum Auffangen der Metallschmelze aus dem Transportbehälter unter Bildung einer Speichermenge, sowie mit einem Gießteil mit wenigstens einem rohrformigen Ausguß ausgebildet ist, die unter Freilassung einer kommunizierenden unteren Verbindungsöffnung in einer gemeinsamen syphonartigen Zwischenwand einander zugeordnet sind.To solve the problem it is proposed in the device for pouring molten metal, in particular cast iron, into ingot molds of the type mentioned in the preamble of claim 1 with the invention that the guide member as a distributor with a trough-like part for collecting the molten metal from the transport container to form a Amount of memory, as well as with a casting with at least one tubular spout, which are assigned to each other while leaving a communicating lower connection opening in a common siphon-like partition.
Bei der erfindungsgemäßen Vorrichtung wird flüssiges Eisen aus einem Transportwagen zunächst in einen wannenartigen Teil eines Verteilers zum Auffangen des Strahls der Metallschmelze gegossen, wobei der Verteiler durch eine syphonartige Wand in zwei Teile unterteilt wird, nämlich in einen Auffangteil für den Strahl der Metallschmelze aus dem Transportbehälter, in welchem turbulente Strömungszustände herrschen, wobei im vorderen Teil, der einen röhr- förmigen Ausguß besitzt, eine Beruhigung des Schmelzebades auftritt. Der im Boden dieses Teils vorhandene röhrenförmige Ausguß kann dabei so nahe an jede einzelne Masselvertiefung der Kokille geführt werden, wie dies die Formkanten zulassen. Mit Vorteil verwendet die erfindungsgemäße Vorrichtung zum Eingießen von Metallschmelze an sich bekannte Konstruktionsprinzipien beim Stranggießen von Stahl wie bekannte Verteilerrinnen unter Anpassung an die besonderen Gegebenheiten bei einer Masselgießmaschine.In the device according to the invention, liquid iron is first poured from a transport trolley into a trough-like part of a distributor for collecting the jet of the molten metal, the distributor being divided into two parts by a siphon-like wall, namely into a collecting part for the jet of the molten metal from the transport container , in which turbulent flow conditions prevail, whereby in the front part, which is a tubular has a shaped spout, a calming of the melt bath occurs. The tubular spout present in the bottom of this part can be guided as close to each individual ingot recess of the mold as the shaped edges allow. Advantageously, the device according to the invention for pouring molten metal uses known construction principles in the continuous casting of steel, such as known distributor channels, while adapting to the special circumstances in a casting machine.
Die Verwendung des erfindungsgemäßen Verteilers mit rohrformigen Ausgüssen hat folgende Vorteile:The use of the distributor according to the invention with tubular spouts has the following advantages:
Jede Massel-Formmulde wird separat gefüllt, es trifft kein Eisen auf die Grate zwischen den Vertiefungen.Each ingot mold is filled separately, no iron hits the ridges between the wells.
Die Ausgüsse unterliegen einem vergleichsweise geringen Verschleiß, der Aufgabepunkt in jede Formmulde ändert sich während des Betriebes nur in vernachlässigbaren Größenordnungen.The spouts are subject to comparatively little wear and tear, the point of application in each mold trough changes only negligibly during operation.
Der Aufgabepunkt des flüssigen Eisens kann näher an die Kokille herangeführt werden, als bei einer Rinnenkonstruktion. Die Spritzneigung wird verringert.The point of application of the liquid iron can be brought closer to the mold than with a channel construction. The tendency to spray is reduced.
Der oben liegende Gießteil des Verteilers mit einer vorgebbaren Speichermenge an Gußeisen stellt einen ruhigen und gleichmäßigen Zufluß an flüssigem Metall sicher.The cast part of the distributor at the top with a predeterminable amount of cast iron ensures a steady and even inflow of liquid metal.
Die Speichermenge im Verteiler kann Zeiten, die für einen Wechsel zu einem neuen Transportgefäß benötigt werden, überbrücken, ohne daß die Anlage in ihrer Funktion angehalten werden muß.The amount of memory in the distributor can bridge the times required for a change to a new transport container without the system having to be stopped in its function.
Das Funktionsprinzip der erfindungsgemäßen Gießvorrichtung ist unabhängig von der genauen Anzahl der eingesetzten Gießrohre und der Form des Verteilers. Die Vorrichtung kann daher an jeder Gießmaschine für flüssiges Metall eingesetzt werden, die auf dem Prinzip einer Masselgießmaschine für Roheisen oder anderes flüssiges Metall funktioniert.The principle of operation of the pouring device according to the invention is independent of the exact number of pouring tubes used and the shape of the distributor. The device can therefore be used on any casting machine for liquid metal, which works on the principle of a pig casting machine for pig iron or other liquid metal.
Weitere Ausgestaltungen der Vorrichtungen sind entsprechend den Unteransprüchen vorgesehen.Further configurations of the devices are provided in accordance with the subclaims.
Einzelheiten, Merkmale und Vorteile der Erfindung ergeben sich aus der nachstehenden Erläuterung eines in der Zeichnung schematisch dargestellten Ausführungsbeispieles.Details, features and advantages of the invention emerge from the following explanation of an exemplary embodiment shown schematically in the drawing.
Die Vorrichtung zum Eingießen von Metallschmelze, insbesondere Gußeisen in Masselgießformen 1 umfaßt in einer Masselgießmaschine ein mit Masselgießformen 1 bestücktes Endlostransportband 2 zum Transport der Masselgießformen von einer Gießstation 3 zu einer Masselentleerungsstation, und umgekehrt, wobei jede Masselgießform 1 in der Gießstation 3 beim Durchlauf durch die Gießvorrichtung mit der Formmulde nach oben zeigend mit Metallschmelze gefüllt wird, die aus einem Transportbehälter 4 mit einem Gießstrahl 5 über ein Leitorgan in die Formmulden eingeleitet wird.The device for pouring molten metal, in particular cast iron, into ingot casting molds 1 comprises, in an ingot casting machine, an endless conveyor belt 2 equipped with ingot casting molds 1 for transporting the ingot casting molds from a casting station 3 to an ingot emptying station, and vice versa, each ingot casting mold 1 in the casting station 3 as it passes through Pouring device with the mold cavity facing upwards is filled with molten metal, which is introduced from a transport container 4 with a pouring jet 5 via a guide element into the mold cavities.
Das Leitorgan ist als Verteiler 6 mit einem wannenartigen Teil 7 zum Auffangen des Strahls 5 der Metallschmelze aus dem Transportbehälter 4 unter Bildung einer Speichermenge 8, sowie mit einem Gießteil 9 mit wenigstens einem rohrformigen Ausguß 10 ausgebildet, die unter Freilassung einer kommunizierenden unteren Verbindungsöffnung 1 1 in einer gemeinsamen syphonartigen Zwischenwand 12 einander zugeordnet sind.The guide element is designed as a distributor 6 with a trough-like part 7 for collecting the beam 5 of the molten metal from the transport container 4 to form a storage quantity 8, and with a casting 9 with at least one tubular spout 10, which leaves a communicating lower connection opening 11 free are assigned to each other in a common siphon-like partition wall 12.
Der Verteiler 6 ist mit seinem Ausguß 10 in vergleichsweise geringem Abstand oberhalb der Formmulde der Masselgießformen l angeordnet. Dadurch wird ein Spritzen von flüssigem Gußeisen und damit eine Verunreinigung und Beschädigung des Endlostransportbandes 2 der Masselgießmaschine vermieden. Weil der Verteiler 6 eine Speichermenge 8 von flüssigem Metall, insbesondere Gußeisen, enthält, muß bspw. während eines Wechsels des Transportbehälters 4 oder im Falle einer Störung der Masselgießmaschine eine zeitweilige Unterbrechung des Austritts von Metallschmelze aus dem Ausguß 10 und fallweise zugleich eine Unterbrechung des Metallstrahls 5 möglich sein. Zu diesem Zweck ist dem rohrformigen Ausguß 10 ein Verschlußorgan 13 zugeordnet. Das Verschlußorgan 13 weist einen von oben her durch das Schmelzbad 14 auf die Ausgußöffnung 10 aufsetzbaren Verschlußstopfen auf, der mit einer fernbedienbaren Auslösevorrichtung 15 in Wirkverbindung steht.The distributor 6 is arranged with its spout 10 at a comparatively short distance above the mold cavity of the casting molds l. This avoids splashing of liquid cast iron and thus contamination and damage to the endless conveyor belt 2 of the ingot casting machine. Because the distributor 6 contains a storage quantity 8 of liquid metal, in particular cast iron, it is necessary, for example, during a change of the transport container 4 or in the event of a fault in the ingot casting machine, to temporarily interrupt the escape of molten metal from the spout 10 and, in some cases, to interrupt the metal jet 5 may be possible. For this purpose, a closure member 13 is associated with the tubular spout 10. The closure member 13 has a closure plug which can be placed from above through the molten bath 14 onto the pouring opening 10 and which is operatively connected to a remote-controlled trigger device 15.
Die Auslösevorrichtung 15 wird von einer Kontrolleinrichtung 16 zur Betriebsüberwachung beherrscht, derart, daß sie im Falle einer Betriebsunterbrechung den Ausguß 10 selbsttätig verschließt.The triggering device 15 is controlled by a control device 16 for monitoring the operation, such that it automatically closes the spout 10 in the event of an interruption in operation.
Dabei kann der Masselgießmaschine bevorzugt eine Betriebsüberwachungseinheit 17 zugeordnet sein, die mit der Kontrolleinrichtung 16 der Gießstation 3 derart zusammenwirkt, daß bei Änderung oder Störung des Betriebszustandes der Masselgießmaschine eine entsprechende Änderung des Betriebes der Gießstation eingeleitet wird. Bspw. kann bei Änderung der Transportgeschwindigkeit des Endlostransportbandes 2 eine Änderung der Badhöhe bzw. der Speichermenge 8 von flüssigem Metall im Verteiler 6 eingestellt werden.In this case, an operation monitoring unit 17 can preferably be assigned to the casting machine, which cooperates with the control device 16 of the casting station 3 in such a way that a corresponding change in the operation of the casting station is initiated when the operating condition of the casting machine changes or is disrupted. E.g. If the transport speed of the endless conveyor belt 2 changes, a change in the bath height or the storage quantity 8 of liquid metal in the distributor 6 can be set.
Und schließlich ist zum ungestörten Betrieb dem Verteiler 6 eine Einrichtung 18 zur Überwachung der Höhe des Schmelzebades 8 zugeordnet, welche bei Über- oder Unterschreitung einer vorgegebenen Höhenmarge die Neigung des Transportbehälters 4 entsprechend korrigiert. Hierdurch wird der ausfließende Gießstahl 5 bzw. die Menge der ausfließenden Metallschmelze beeinflußt.And finally, for undisturbed operation, the distributor 6 is assigned a device 18 for monitoring the height of the melt pool 8, which corrects the inclination of the transport container 4 accordingly if a predetermined height margin is exceeded or undershot. As a result, the outflowing cast steel 5 or the amount of outflowing molten metal is influenced.
Das erfindungsgemäße Prinzip der Gießvorrichtung für Metallschmelze, insbesondere Gußeisen, in Masselgießformen ist unabhängig von der Anzahl eingesetzter Gießrohre 10 sowie von der Form des Verteilers 6 bzw. seines wannenartigen Teils 7 und Gießteils 9. Die Vorrichtung kann an jeder Gießmaschine für flüssiges Metall eingesetzt werden, die auf dem Prinzip einer Masselgießmaschine, bspw. für Roheisen, funktioniert. Der Einsatz der erfindungsgemäßen Gießvorrichtung ist im Hinblick auf die Entwicklung von neuen Hochleistungs- Masselgießmaschinen von wesentlicher Bedeutung. The principle according to the invention of the casting device for molten metal, in particular cast iron, in ingot casting molds is independent of the number of casting tubes 10 used and of the shape of the distributor 6 or its trough-like part 7 and casting part 9. The device can be used on any casting machine for liquid metal can be used, which works on the principle of a pig casting machine, for example for pig iron. The use of the casting device according to the invention is of essential importance with regard to the development of new high-performance pig casting machines.
BezugszeichenlisteReference list
1 Masselgießform1 ingot mold
2 Endlostransportband2 endless conveyor belt
3 Gießstation3 casting station
TransportbehälterShipping container
5 Gießstrahl5 pouring stream
6 Verteiler6 distributors
7 wannenartiger Teil7 tub-like part
8 Speichermenge8 Amount of memory
9 Gießteil9 casting
10 Ausguß10 spout
1 1 Verbindungsöffnung1 1 connection opening
12 Zwischenwand12 partition
13 Verschlußorgan13 closure member
14 Schmelzbad14 weld pool
15 Auslösevorrichtung15 release device
16 Kontrolleinrichtung16 control device
17 Betriebsüberwachungs-Einheit17 Operation monitoring unit
18 Badspiegel-Überwachung 18 Bath level monitoring

Claims

Patentansprüche claims
1. Vorrichtung zum Gießen von Metallschmelze, insbesondere Gußeisen, in Masselgießformen, umfassend in einer Masselgießmaschine ein mit Masselgießformen (1) bestücktes Endlostransportband (2) zum Transport der Masselgießformen (1) von einer Gießstation (3) zu einer Masselentleerungsstation, und umgekehrt, wobei jede Masselgießform (1) in der Gießstation (3) beim Durchlauf durch die Gießvorrichtung mit der Formmulde nach oben zeigend mit Metallschmelze gefüllt wird, die aus einem Transportbehälter (4) über ein Leitorgan, in die Formmulden eingeleitet wird, dadurch gekennzeichnet, daß das Leitorgan als Verteiler (6) mit einem wannenartigen Teil (7) zum Auffangen der Metallschmelze aus dem Transportbehälter (4) unter Bildung einer Speichermenge (8), sowie mit einem Gießteil (9) mit wenigstens einem rohrformigen Ausguß (10) ausgebildet ist, die unter Freilassung einer kommunizierenden unteren Verbindungsöffnung (11) in einer gemeinsamen syphonartigen Zwischenwand (12) einander zugeordnet sind.1. Device for casting molten metal, in particular cast iron, in pig casting molds, comprising in a pig casting machine an endless conveyor belt (2) equipped with pig casting molds (1) for transporting the pig casting molds (1) from a casting station (3) to a pig emptying station, and vice versa, wherein Each ingot casting mold (1) in the casting station (3) is passed through the casting device with the mold cavity pointing upwards with molten metal, which is introduced into the mold cavities from a transport container (4) via a guide element, characterized in that the guide element as a distributor (6) with a trough-like part (7) for collecting the molten metal from the transport container (4) to form a storage quantity (8), and with a casting (9) with at least one tubular spout (10), which is formed under Release of a communicating lower connection opening (11) in a common siphon-like partition (12) are assigned to each other.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Verteiler (6) mit seinem Ausguß (10) in möglichst geringem Abstand oberhalb der Formmulden der Masselgießformen (1) angeordnet ist.2. Device according to claim 1, characterized in that the distributor (6) with its spout (10) is arranged as close as possible above the mold troughs of the casting molds (1).
3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß dem rohrformigen Ausguß (10) ein Verschlußorgan (13) zugeordnet ist.3. Device according to claim 1 or 2, characterized in that the tubular spout (10) is associated with a closure member (13).
4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß das Verschlußorgan (13) einen von oben her durch das Schmelzbad (14) auf die Ausgußöffnung (10) aufsetzbaren Verschlußstopfen aufweist, der mit einer fernbedienbaren Auslösevorrichtung (15) in Wirkverbindung steht.4. The device according to claim 3, characterized in that the closure member (13) has a closure plug which can be placed from above through the molten bath (14) onto the pouring opening (10) and which is operatively connected to a remote-controlled release device (15).
5. Vorrichtung nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß die Auslösevorrichtung (15) von einer Kontrolleinrichtung (16) zur Betriebsüberwachung beherrscht wird, derart, daß sie im Falle einer Betriebsunterbrechung den Ausguß (10) selbsttätig verschließt.5. Apparatus according to claim 3 or 4, characterized in that the triggering device (15) is controlled by a control device (16) for monitoring the operation, such that it automatically closes the spout (10) in the event of an interruption in operation.
6. Vorrichtung nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß der Masselgießmaschine eine Betriebsüberwachungseinheit (17) zugeordnet ist, die mit der Kontrolleinrichtung (16) der Gießstation (3) zusammenwirkt, derart, daß bei Änderung oder Störung des Betriebszustandes der Masselgießmaschine eine entsprechende Änderung des Betriebes der Gießstation (3) eingeleitet wird.6. Apparatus according to claim 3 or 4, characterized in that the casting machine is assigned an operation monitoring unit (17) which cooperates with the control device (16) of the casting station (3), such that a corresponding change or change in the operating state of the casting machine Change in the operation of the casting station (3) is initiated.
7. Vorrichtung nach Anspruch 1 , dadurch gekennzeichnet, daß dem Verteiler (6) eine Einrichtung (18) zur Überwachung der Höhe des Schmelzbades (8) zugeordnet ist, welche bei Über- oder Unterschreitung einer vorgegebenen Höhenmarge die Neigung des Transportbehälters (4) und damit den ausfließenden Gießstahl (5) entsprechend korrigiert. 7. The device according to claim 1, characterized in that the distributor (6) is assigned a device (18) for monitoring the height of the melting bath (8), which, when the predetermined margin is exceeded or fallen below, the inclination of the transport container (4) and this corrects the pouring cast steel (5) accordingly.
EP00901080A 1999-01-22 2000-01-11 Device for pouring cast iron into pig moulds Expired - Lifetime EP1146976B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19902441 1999-01-22
DE19902441A DE19902441A1 (en) 1999-01-22 1999-01-22 Pig casting machine, especially for casting iron pigs, has a melt distributor with a melt reception portion connected to a pouring portion by a bottom opening in a partition wall
PCT/EP2000/000112 WO2000043151A1 (en) 1999-01-22 2000-01-11 Device for pouring molten metal, notably cast iron, in pig moulds

Publications (2)

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EP1146976A1 true EP1146976A1 (en) 2001-10-24
EP1146976B1 EP1146976B1 (en) 2002-09-18

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EP00901080A Expired - Lifetime EP1146976B1 (en) 1999-01-22 2000-01-11 Device for pouring cast iron into pig moulds

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AU (1) AU2106900A (en)
DE (2) DE19902441A1 (en)
WO (1) WO2000043151A1 (en)

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Publication number Priority date Publication date Assignee Title
CN103223474A (en) * 2013-05-24 2013-07-31 黄石新兴管业有限公司 Casting strengthened drossing method of iron casting machine
RU2669095C2 (en) * 2016-03-21 2018-10-08 Федеральное государственное автономное образовательное учреждение высшего образования "Крымский федеральный университет имени В.И. Вернадского" Information system for liquid iron transportation monitoring

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FI60821C (en) * 1976-03-05 1982-04-13 Mitsui Mining & Smelting Co FOERFARANDE VID VILKET MEDELST EN GJUTMASKIN EN FOERUT BESTAEMD MAENGD SMAELT METALL GJUTES I EFTER VARANDRA FOELJANDE FORMAR OCH ANORDNING FOER GENOMFOERANDE AV DETSAMMA
DE2850563A1 (en) * 1978-11-22 1980-06-04 Russ Elektroofen Gmbh & Co Kg CASTING DEVICE, PREFERRED FOR LIGHT METAL
JP3127052B2 (en) * 1992-10-02 2001-01-22 株式会社神戸製鋼所 Cast iron method to make the single weight of pig iron uniform
JPH06126387A (en) * 1992-10-22 1994-05-10 Kobe Steel Ltd Method for casting pig iron having little remained molten iron in molten iron receiving runner
US6497271B1 (en) * 1998-08-10 2002-12-24 Sms Schloemann-Siemag Aktiengesellschaft Pig casting machine

Non-Patent Citations (1)

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Title
See references of WO0043151A1 *

Also Published As

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EP1146976B1 (en) 2002-09-18
WO2000043151A1 (en) 2000-07-27
DE50000522D1 (en) 2002-10-24
AU2106900A (en) 2000-08-07
DE19902441A1 (en) 2000-07-27

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