EP1607705B1 - Dosing furnace - Google Patents
Dosing furnace Download PDFInfo
- Publication number
- EP1607705B1 EP1607705B1 EP05004278A EP05004278A EP1607705B1 EP 1607705 B1 EP1607705 B1 EP 1607705B1 EP 05004278 A EP05004278 A EP 05004278A EP 05004278 A EP05004278 A EP 05004278A EP 1607705 B1 EP1607705 B1 EP 1607705B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- door
- housing
- opening
- dosing furnace
- furnace
- 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.)
- Active
Links
- 239000003566 sealing material Substances 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 12
- 229910001338 liquidmetal Inorganic materials 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 8
- 241000237983 Trochidae Species 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims 1
- 238000004140 cleaning Methods 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 240000006829 Ficus sundaica Species 0.000 description 2
- 239000012768 molten material Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000881 depressing effect Effects 0.000 description 1
- 210000003953 foreskin Anatomy 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D39/00—Equipment for supplying molten metal in rations
- B22D39/06—Equipment for supplying molten metal in rations having means for controlling the amount of molten metal by controlling the pressure above the molten metal
Abstract
Description
In der Giesereitechnik gibt es kippbare Kupolofennvorherde (
Die Erfindung bezieht sich auf einen Dosierofen zur Abgabe von abgemessenen Portionen einer Schmelze, insbesondere flüssiges Metall, umfassend ein äußeres, feststehendes Gehäuse, das ein Gehäuseinneres umschließt, eine feuerfeste Auskleidung des Gehäuseinneren, die eine Wanne für die Materialschmelze bildet, eine Tür, die eine Türöffnung im Gehäuse abdeckt, eine Öffnung zum Durchtritt eines Materialabgaberohres, das mit seinem unteren Ende in die Schmelze eintaucht, und wenigstens eine Druckzuführungsöffnung, um Gasdruck ins Gehäuseinnere einzuführen und jeweils eine verflüssigte Materialportion durch das Abgaberohr auszugeben.The invention relates to a metering furnace for dispensing metered portions of a melt, in particular liquid metal, comprising an outer, fixed housing enclosing a housing interior, a refractory lining of the housing interior, which forms a trough for the molten material, a door, a Door opening in the housing covering, an opening for the passage of a material discharge tube, which dips with its lower end in the melt, and at least one pressure supply opening to introduce gas pressure into the housing interior and each issue a liquefied portion of material through the discharge pipe.
Derartige bekannte Dosieröfen haben eine kastenförmige Gestalt und werden in Gießereien aufgestellt, un aufeinanderfolgend Gießformen zu füllen. Die Dosierung der jeweils abgegebenen Menge an Schmelze wird durch Höhe und Dauer eines ins Innere des Dosierofens zugeführten Gasdruckstoßes bestimmt, der etwa 0,2 bis 0,5 bar beträgt. Der Druckstoß führt zu einer Verformung des Gehäuses, die dadurch gering gehalten wird, dass die äußeren Wände des Gehäuses durch angeschweißte Rippen und Flansche verstärkt werden.Such known metering furnaces have a box-like shape and are placed in foundries, un successive filling molds. The dosage of each discharged amount of melt is determined by the amount and duration of a supplied into the interior of the metering gas pressure surge, which is about 0.2 to 0.5 bar. The surge results in deformation of the housing, which is minimized by reinforcing the outer walls of the housing by welded-on ribs and flanges.
Der Erfindung liegt die Aufgabe zugrunde, den Aufwand bei einem Dosierofen zu verkleinern. Ferner soll auch die Abdichtung des Dosierofens verbessert werden. Schließlich soll eine niedrige Höhe der Einfüllöffnung des Dosierofens ermöglicht werden.The invention is based, to reduce the effort in a metering furnace the task. Furthermore, the sealing of the metering furnace should also be improved. Finally, a low height of the filling opening of the metering furnace should be made possible.
Die gestellte Aufgabe wird dadurch gelöst, dass das Gehäuse gewölbte Seitenflächen aufweist, die zu einem vorderen Ende hin und zu einem hinteren Ende hin zulaufen.The stated object is achieved in that the housing has curved side surfaces, which run towards a front end and to a rear end.
Im Einzelnen wird das Gehäuse des Dosierofens durch gebogene Platten mit gekrümmten Rändern gebildet, wodurch sich eine Schalenform ergibt, die auch ohne Verstärkungsrippen den auftretenden Innendrücken standhält.Specifically, the housing of the metering furnace is formed by curved plates with curved edges, resulting in a shell shape that withstands the internal pressures occurring without reinforcing ribs.
Zum leichteren Zusammenbau des Dosierofens wird eine Oberschale und eine Unterschale aus den gebogenen Blechtafeln zusammengeschweißt und die beiden Schalen werden aufeinander gesetzt und abgedichtet. Nach einer Weiterbildung der Erfindung sind die freien Ränder der beiden Schalen zur Bildung jeweils eines Nut- und Feder-Eingriffs gefalzt. Dies stellt eine ökonomische Verbindungsart dar, die leicht abgedichtet werden kann, indem Dichtungsmaterial zwischen Nut und Feder eingefügt wird. Zweckmäßigerweise wird an die Blechtafel, welcher den Federfalz aufweist, ein Flanschrand angeschweißt, der zur Auflage des einen Endes von Klammern dient, deren andere Enden sich an der Oberseite der Nutfalz abstützen. Die Klammern können durch Schrauben und dergleichen Zugmittel in Richtung auf den angeschweißten Flanschrand gezogen werden, wodurch das zwischen Nut und Feder eingelegte Dichtungsmaterial zusammengepreßt wird und eine sichere Abdichtung des Inneren des Dosierofens erfolgt.To facilitate assembly of the metering furnace, an upper shell and a lower shell of the bent metal sheets are welded together and the two shells are placed on each other and sealed. According to a development of the invention, the free edges of the two shells are folded to form a respective tongue and groove engagement. This represents an economic Kind of connection, which can be easily sealed by inserting sealing material between tongue and groove. Appropriately, a flange edge is welded to the metal sheet, which has the spring fold, which serves to rest one end of staples whose other ends are supported on the top of Nutfalz. The clamps can be pulled by screws and the like pulling means in the direction of the welded flange edge, whereby the inserted between tongue and groove sealing material is compressed and there is a secure seal the interior of the metering furnace.
Die besondere Schalenform des Dosierofens führt dazu, dass die Türöffnung schräg im Raum liegt, wodurch diese Türöffnung nicht nur zu Reinigungszwecken des Gehäuseinneren, sondern auch zur Anbringung der Befülleinrichtung genutzt werden kann. Somit kann die sonst notwendige weitere Befüllöffnung im oberen Bereich des Dosierofens eingespart werden. Vorteilhaft ist auch, dass die Fallhöhe der Schmelze beim Einfüllen, im Vergleich zu am Markt befindlichen Dosieröfen, erniedrigt wird.The special shell shape of the metering furnace causes the door opening is inclined in the room, whereby this door opening can be used not only for cleaning purposes of the housing interior, but also for attachment of the filling. Thus, the otherwise necessary additional filling can be saved in the upper part of the metering furnace. It is also advantageous that the drop height of the melt during filling, compared to dosing on the market, is lowered.
Ausführungsbeispiele der Erfindung werden anhand der Zeichnung beschrieben. Dabei zeigt:
- Fig. 1
- eine erste Ausführungsform des Dosierofens, seitlich von hinten gesehen,
- Fig. 2
- den Dosierofen seitlich von vorne gesehen,
- Fig. 3
- einen Schnitt durch Eingriffsfalze,
- Fig. 4
- eine Klammerverbindung.
- Fig. 5
- einen Türschließmechanismus,
- Fig. 6
- eine Seitenansicht von Teilen des Türschließmechanismus, teilweise geschnitten,
- Fig. 7
- eine zweite Ausführungsform des Dosierofens in der Betriebsstellung, von der Seite gesehen,
- Fig. 8
- den Türmechanismus in der Reinigungsstellung des Dosierofens,
- Fig. 9
- den Dosierofen, von oben gesehen,
- Fig. 10
- den Dosierofen, von hinten gesehen,
- Fig. 11
- einen Fülltrichter, von oben gesehen,
- Fig. 12
- den Fülltrichter, teilweise geschnitten, in der Geschlossen-Stellung, und
- Fig. 13
- den Fülltrichter in der Offen-Stellung.
- Fig. 1
- a first embodiment of the metering furnace, seen from the side,
- Fig. 2
- seen the dosing furnace laterally from the front,
- Fig. 3
- a section through Eingriffsfalze,
- Fig. 4
- a clamp connection.
- Fig. 5
- a door closing mechanism,
- Fig. 6
- a side view of parts of the door closing mechanism, partially cut,
- Fig. 7
- A second embodiment of the metering furnace in the operating position, seen from the side,
- Fig. 8
- the door mechanism in the cleaning position of the metering furnace,
- Fig. 9
- the dosing oven, seen from above,
- Fig. 10
- the dosing oven, seen from behind,
- Fig. 11
- a hopper, seen from above,
- Fig. 12
- the hopper, partially cut, in the closed position, and
- Fig. 13
- the hopper in the open position.
Die Unterschale 1 umfasst im Wesentlichen fünf zusammengeschweißte Platten, nämlich zwei Seitenplatten 11 und 12, eine Auslassöffnungsplatte 13, eine Türöffnungsplatte 14 und eine Bodenplatte 15. Die Oberschale 2 umfasst Seitenplatten 21, 22 sowie eine Deckplatte 23. Wie aus den zeichnerischen Darstellungen ersichtlich, sind alle Platten mehr oder weniger gekrümmt, bis auf die Türöffnungsplatte 14, die im übrigen auch dickeres Material im Vergleich zu den anderen Platten aufweist, wie aus
Die Unter- und Oberschale weisen freie Kanten auf, die dazu bestimmt sind, abdichtend ineinander zu greifen. Zu diesem Zweck sind die freien Kanten der Unterschale 1 als Federfalz 17 (
Nahe jedes Federfalzes 17 ist ein Flanschrand 18 angeschweißt, der zur Aufnahme eines Schraubbolzens 24 dient. Der Schraubbolzen 24 kann als Stehbolzen (
In
Der Türmechanismus 4 wird anhand der
Das Anheben und Absenken der Tür 41 erfolgt über einen motorischen Antrieb 50. Dieser enthält einen doppelwirkenden Pneumatikzylinder 51 und eine Kolbenstange 52, deren Ende gelenkig mit einem Arm 53 der Welle 42 zu deren Betätigung verbunden ist. Durch Herausfahren und Zurückziehen der Kolbenstange 52 wird der Hebelarm 53 hin- und hergeschwenkt und damit auch das Schwenkhebelpaar 44, was zum An- und Abheben der Tür 41 führt.The raising and lowering of the
Zum festen Verschließen der Tür 41 ist noch eine Handschließeinrichtung 55 vorgesehen. Zu diesem Zweck sind zwei Lagerböcke 56 an den gewölbten Enden der Tür 41 angeschweißt, die eine Schließwelle 57 lagern, an der ein Handgriff 58 angebracht ist. Die Welle 57 ist an ihren Enden als Exzenter 59 ausgebildet, auf denen jeweils ein Exzenterhebel oder Schließhebel 60 sitzt, der mit einem Schließhaken 61 (
Der Öffnungs- und Schließvorgang der Tür geht wie folgt vor sich: Durch Anheben des Handgriffes 58 wird die Welle 57 so geschwenkt, dass der Exzenter 59 den Schließhebel 60 lockert und außer Eingriff mit dem Gegenhalterbolzen 62 bewegt. Wenn nunmehr der Pneumatikzylinder 51 betätigt wird, führt dies zur Drehung der Welle 42 und damit Schwenkung des Hebelpaares 44, wodurch die Tür 41 in die Stellung 41' (
Es ist somit verständlich, dass mit einfachen Mitteln eine stabile Konstruktion und gute Abdichtung des Dosierofens erzielt wird, was Voraussetzung für exaktes Arbeiten bei der dosierten Abgabe der Materialschmelze ist.It is thus understandable that a stable construction and good sealing of the metering furnace is achieved with simple means, which is a prerequisite for accurate work in the metered delivery of the molten material.
Die Form des Dosierofens nach der zweiten Ausführungsform (
In der zweiten Ausführungsform der Erfindung ist die Befülleinrichtung 8 in dem Türmechanismus 4 integriert. Zu diesem Zweck bildet die Tür 41 einen quaderförmigen Körper (s.
In
Der Antrieb der Tür 41 zwischen der Schließstellung 41' und der Geschlossen-Stellung 41 erfolgt ähnlich wie zu
Der Antrieb der Welle 42 kann in ähnlicher Weise motorisch erfolgen, wie mit
Wie mit
Weitere Einzelheiten der Befülleinrichtung 8 werden anhand der
Öffnen und Schließen des Deckels 84 erfolgt über einen Deckelschließmechanismus 90. Dieser enthält einen doppelwirkenden Pneumatikzylinder 91 und eine Kolbenstange 92, an deren Ende einerseits ein Deckelschwenkhebel 93 und andererseits eine Schließbetätigungsstange 94 angelenkt sind. Die Schließbetätigungsstange 94 ist über einen kurzen Betätigungshebel 95 mit der Welle 96 verbunden, die in den Lagerböcken 86 des Deckels 84 drehbar gelagert ist und an ihren Enden mit Exzenter 97 versehen ist, auf denen jeweils mit Haken versehene Schließhebel 98 sitzen, die mit den Gegenhaltern 87 am äußeren Rand des Fülltrichters 84 zusammen arbeiten. Wie am Besten aus
Zum Betrieb des Dosierofens wird die Tür 41 geschlossen gehalten, während der Fülltrichter 81 geöffnet wird, um flüssiges Metall in den Trichter einzugeben. Bemerkenswert ist, dass die Trichterfüllöffnung 80 des Dosierofens dabei eine niedrige Höhe gegenüber dem Flurboden einnehmen kann, bedingt durch die Bauweise des Dosierofens nach den
Wenn der Pegel des eingefüllten flüssigen Metalls unterhalb einer vorgegebenen Höhe absinkt, wird der Vorgang des Befüllens des Dosierofens wiederholt.When the level of the filled liquid metal falls below a predetermined level, the process of filling the metering furnace is repeated.
Nach Betriebsstillstand wird das Innere des Dosierofens von Schlackeresten und anhaftendem Metall gereinigt, und hierzu wird die Tür 41 weggeschwenkt, wie in
Claims (8)
- Dosing furnace for discharging measured portions of a material melt, in particular liquid metal, comprising:an external housing (1, 2) which surrounds a housing interior;a refractory lining (31, 32) of the housing interior which forms a trough (30) for the material melt;a door (41) which covers a door opening (40) in the housing;an opening (3) to allow the passage of a material discharge pipe (35) which is inserted with its lower end into the trough (30);at least one pressure supply opening (5) to introduce gas pressure into the housing interior and to discharge in each case a liquefied material portion through the material discharge pipe (35);wherein the housing (1, 2) comprises curved lateral surfaces (11, 12, 13, 15, 21, 22, 23) which run towards a front end (16) and towards a rear end (14).
- Dosing furnace as claimed in claim 1, characterised in that the housing comprises a top shell (2) and a bottom shell (1), whose curved lateral surfaces are welded together from arcuate sheet metal boards, whose free edges are grooved to form in each case a tongue and groove engagement (17, 27).
- Dosing furnace as claimed in claim 2, characterised in that sealing material (29) is inserted between the groove rebate (27) and the tongue rebate (17).
- Dosing furnace as claimed in claim 2 or 3, characterised in that the respective sheet metal boards having a tongue rebate (17) provided thereon comprise a welded-on flange edge (18) which serves to engage clamps (25) which are supported on the outer side of the groove rebate (27).
- Dosing furnace as claimed in any one of claims 1 to 4, characterised in that the door opening (40) is disposed in a plane, which is inclined with respect to the horizontal, at the rear end (14) of the housing.
- Dosing furnace as claimed in claim 5, characterised in that the door (41) forms a cuboidal body, through which a filling opening (6) passes.
- Dosing furnace as claimed in claim 6, characterised in that the filling opening (6) is allocated a filling device (8).
- Dosing furnace as claimed in any one of claims 5 to 7, characterised in that an opening (3) to allow the passage of the material discharge pipe (35) is provided at the front end (16) of the dosing furnace.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07020760.0A EP1950517B1 (en) | 2004-02-28 | 2005-02-28 | Metering kiln with combined cleaning and charging aperture and Process of using it |
SI200530570T SI1607705T1 (en) | 2004-02-28 | 2005-02-28 | Dosing furnace |
PL05004278T PL1607705T3 (en) | 2004-02-28 | 2005-02-28 | Dosing furnace |
PCT/EP2005/012004 WO2006092163A2 (en) | 2005-02-28 | 2005-11-09 | Metering oven |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202004003098U | 2004-02-28 | ||
DE202004003098U DE202004003098U1 (en) | 2004-02-28 | 2004-02-28 | dosing |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07020760.0A Division EP1950517B1 (en) | 2004-02-28 | 2005-02-28 | Metering kiln with combined cleaning and charging aperture and Process of using it |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1607705A2 EP1607705A2 (en) | 2005-12-21 |
EP1607705A3 EP1607705A3 (en) | 2006-05-24 |
EP1607705B1 true EP1607705B1 (en) | 2008-12-03 |
Family
ID=34802054
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05004278A Active EP1607705B1 (en) | 2004-02-28 | 2005-02-28 | Dosing furnace |
EP07020760.0A Active EP1950517B1 (en) | 2004-02-28 | 2005-02-28 | Metering kiln with combined cleaning and charging aperture and Process of using it |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07020760.0A Active EP1950517B1 (en) | 2004-02-28 | 2005-02-28 | Metering kiln with combined cleaning and charging aperture and Process of using it |
Country Status (8)
Country | Link |
---|---|
EP (2) | EP1607705B1 (en) |
AT (1) | ATE416353T1 (en) |
DE (2) | DE202004003098U1 (en) |
DK (1) | DK1607705T3 (en) |
ES (2) | ES2318374T3 (en) |
PL (1) | PL1607705T3 (en) |
PT (1) | PT1607705E (en) |
SI (1) | SI1607705T1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010018895A1 (en) * | 2010-04-30 | 2011-11-03 | Thermat Industrieofen Gmbh | Spout useful as support and platform in compressed gas-operated dosing furnaces for emptying and cleaning, comprises compressed gas-operated dosing furnace with non-ferrous metals and a conical U-shaped bent plate |
DE102011014249A1 (en) | 2011-03-17 | 2012-09-20 | Feuerungsbau Bachmeier GmbH & Co. KG | Industrial furnace, preferably dosing- or holding furnace, useful for material melt, preferably for liquid aluminum alloy, comprises housing exhibiting bottom region, wall region, and heating element |
CN106225493B (en) * | 2016-07-26 | 2018-07-06 | 河南天利热工装备股份有限公司 | A kind of structure on heat treatment trolley |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE578927C (en) * | 1931-10-25 | 1933-06-23 | Friedrich Schinke | Tiltable cupola front hearth |
DE638866C (en) * | 1933-06-03 | 1937-01-20 | Friedrich Schinke | Tiltable cupola front hearth |
GB623314A (en) * | 1947-04-29 | 1949-05-16 | United Steel Companies Ltd | Improvements in and relating to furnace roofs or arches |
JPH05293634A (en) * | 1992-04-23 | 1993-11-09 | S A Koosan Kk | Molten metal carrying furnace for casting and the like |
EP0627274A1 (en) * | 1993-06-01 | 1994-12-07 | INDUSTRIETECHNIK ALSDORF GmbH | Metering device for non-ferrous metal melts and method to control the release of a melt volume |
NO308920B1 (en) * | 1999-03-31 | 2000-11-13 | Norsk Hydro As | Method and apparatus for transferring metal |
-
2004
- 2004-02-28 DE DE202004003098U patent/DE202004003098U1/en not_active Expired - Lifetime
-
2005
- 2005-02-28 EP EP05004278A patent/EP1607705B1/en active Active
- 2005-02-28 DK DK05004278T patent/DK1607705T3/en active
- 2005-02-28 ES ES05004278T patent/ES2318374T3/en active Active
- 2005-02-28 EP EP07020760.0A patent/EP1950517B1/en active Active
- 2005-02-28 SI SI200530570T patent/SI1607705T1/en unknown
- 2005-02-28 PT PT05004278T patent/PT1607705E/en unknown
- 2005-02-28 AT AT05004278T patent/ATE416353T1/en active
- 2005-02-28 PL PL05004278T patent/PL1607705T3/en unknown
- 2005-02-28 ES ES07020760.0T patent/ES2447433T3/en active Active
- 2005-02-28 DE DE502005006118T patent/DE502005006118D1/en active Active
Also Published As
Publication number | Publication date |
---|---|
SI1607705T1 (en) | 2009-04-30 |
PL1607705T3 (en) | 2009-05-29 |
EP1607705A2 (en) | 2005-12-21 |
EP1950517A1 (en) | 2008-07-30 |
ES2447433T3 (en) | 2014-03-12 |
ES2318374T3 (en) | 2009-05-01 |
DE202004003098U1 (en) | 2005-07-14 |
DE502005006118D1 (en) | 2009-01-15 |
EP1950517B1 (en) | 2013-12-25 |
ATE416353T1 (en) | 2008-12-15 |
PT1607705E (en) | 2009-01-20 |
DK1607705T3 (en) | 2009-03-30 |
EP1607705A3 (en) | 2006-05-24 |
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