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EP2033493A1 - Wall elements for water-cooled, current-conducting electrode bearing arms and electrode bearing arms produced from such wall elements - Google Patents

Wall elements for water-cooled, current-conducting electrode bearing arms and electrode bearing arms produced from such wall elements

Info

Publication number
EP2033493A1
EP2033493A1 EP07764634A EP07764634A EP2033493A1 EP 2033493 A1 EP2033493 A1 EP 2033493A1 EP 07764634 A EP07764634 A EP 07764634A EP 07764634 A EP07764634 A EP 07764634A EP 2033493 A1 EP2033493 A1 EP 2033493A1
Authority
EP
European Patent Office
Prior art keywords
wall element
wall elements
support arm
wall
elektrodentragarm
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
EP07764634A
Other languages
German (de)
French (fr)
Other versions
EP2033493B1 (en
Inventor
Arndt Dung
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to PL07764634T priority Critical patent/PL2033493T3/en
Publication of EP2033493A1 publication Critical patent/EP2033493A1/en
Application granted granted Critical
Publication of EP2033493B1 publication Critical patent/EP2033493B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B7/00—Heating by electric discharge
    • H05B7/02—Details
    • H05B7/10—Mountings, supports, terminals or arrangements for feeding or guiding electrodes
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B7/00—Heating by electric discharge
    • H05B7/02—Details
    • H05B7/10—Mountings, supports, terminals or arrangements for feeding or guiding electrodes
    • H05B7/101—Mountings, supports or terminals at head of electrode, i.e. at the end remote from the arc
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D11/00—Arrangement of elements for electric heating in or on furnaces
    • F27D11/08—Heating by electric discharge, e.g. arc discharge
    • F27D11/10—Disposition of electrodes

Definitions

  • the invention relates to wall elements for water-cooled, current-carrying electrode support arms and made of such wall elements Elektrodentragarme.
  • Supporting arms for the electrodes of electric arc furnaces require high temperatures which occur during the melting process because of at least the area of the water cooling close to the furnace.
  • the cooling of the electrode tensioning bow and the contact jaw which as a rule is also provided in this case, requires the independent supply of cooling water to the Elektrodenspannbügel and the contact jaw by the Elektrodentragarm associated pipes for the supply and discharge of cooling water for Elektrodenspannbügel and the contact jaw. It has been proposed in recent times already, for the cooling water flow extruded to provide the Elektrodentragarm forming wall elements with holes for cooling water circulation. (EP 0 594 272 B2). This eliminates the Elektrodentragarm enforcing or combined with the support arm separate piping systems. However, this proves to be disadvantageous in the elaborate preparation of the extruded wall elements with trained, closed channels for the cooling water circuit. Costly proves in this solution then also that it requires separate tools for the creation of wall elements with divergent dimensions and / or different cross sections of the intersecting cooling water channels.
  • the invention has the object to design a cost-effective integrated in Elektrodentragarme wall elements cooling system, which then allows greater latitude in terms of cross sections of both the wall elements and the cooling water channels.
  • the object is achieved with wall elements for water-cooled, current-carrying electrode support arms, which consists fiction, according to a consisting of electrically conductive metal flat profile in which on the outside of the Elektrodentragarms forming flat side at least one over the length of the profile extending recess is incorporated, the outside - And frontally with the flat profile by welding combined covers, a closed cooling channel resulting covers each having at least one access and at least one outlet for the coolant channel flowing through the cooling water is provided.
  • Embodiments of the wall element according to the invention will become apparent from the dependent claims 2 to 7.
  • the dependent claims 8 to I l cancel on from the wall elements according to the invention can be created from the electrode support arms.
  • the Elektrodentragarme manufacturing company can use the already existing standard tools, such as saws, milling, welding equipment and drilling equipment, the components of the wall elements according to the invention, namely the return element having wall element and its cooling channel forming cover, create from cost endless material and The components of the wall elements then also summarize, from which in place the Elektrodentragarm is then assembled. It proves to be advantageous in this case also that can be created for the purpose of Anpgresparkeit to the specific application wall elements divergent width and length, then wall elements with divergent cooling channel sections readily with the available tools. From Elektrodentragarmen created by Wandungsettin invention then also results in the desired weight reduction of such electrode support arms.
  • FIG. 2a shows the cropped starting material for the side walls of the electrode support arm, in cross section.
  • FIG. 2b shows a representation corresponding to FIG. 2a with recesses milled into the main body of the wall element,
  • FIG. 2c shows the completed wall element according to the invention
  • 3 a shows the cut starting material for the lower and the upper wall element of the electrode support arm, in cross-section
  • FIG. 3 b shows a representation corresponding to FIG. 3 a, with a recess milled into the base body
  • FIG. 3c shows the completed wall element
  • FIG. 4 shows a cross-section close to the furnace vessel through an electrode support arm made from wall elements according to the invention
  • FIG. 5 shows a cross section through the electrode carrier arm corresponding to FIG.
  • 1 1 denotes the furnace vessel, in the scrap generally used below
  • the electrodes 12, 12 '12 are clamped (131) at the free end of the electrode support arms 13, 13', 13", they become in accordance with the progressive Ab
  • Both the emptying of the furnace vessel 11 after completion of the melting process, usually by tilting the furnace vessel 11, as well as for the replacement of the electrodes requires both the lowering and lifting of the electrodes 12, 12 ', 12 ", then also the Cirverschwenkens the electrodes from the immediate area of the furnace vessel 1 1.
  • the electrode support arms 13, 13', 13" on a Tragarmklale 14 in the sense of the double arrow A can be lowered and raised and in the sense of the double arrow B are mounted pivotably in the horizontal, the electrode support arms 13, 13 ', 13 "and the clamps located at the free end of the electrode support arms 131 for the electrodes 12, 12 ', 12 "require, in view of the high temperatures occurring in the surroundings of the furnace vessel 11 during the melting process, intensive cooling, generally cooling water supplied by the support arms and the clamping straps.
  • FIGS. 2 a and 3 a Components of the wall elements according to the invention for electrode support arms tailored from endless material are shown in FIGS. 2 a and 3 a. These are the main body 22 forming the wider side walls and the base body 32 having a smaller width, forming the lower and upper walls of the electrode support arms, and the smaller thickness covers 23, 23 "and 33, respectively, which complete the wall elements.
  • FIGS 3b the base bodies 22 and 32 of the wall elements 21 and 31 can be seen with recesses 24 and 34 milled in.
  • Figures 2c and 3c show the completed wall elements 21 and 31 with the cooling water channels 27, 27 'and 37 formed therein.
  • the permanent combination of the covers 23 with the main body 21 of the wall element 21 by countersunk (25) welds 26 is shown in Fig.
  • the cooling channels 44, 44 '"formed in the side walls 42, 42 are flowed through by the cooling water which acts on both the electrode support arm and the electrode tensioning bow
  • the supply and discharge of the cooling water to or from the electrode clamping bracket is not illustrated by the arrow sequence C
  • cooling water is applied independently to the side walls 42, 42 'and the wall elements 43, 43' forming the lower side and the upper side of the electrode support arm, as well as the electrode clamping yokes and the contact jaw 46, 46 'are the ports on the outside of the cooling water circuit in the Elektrodenspannbügel located on the cooling channels 44', 44 "in the side walls 42, 42 'lie.
  • Branches for branching from one to a plurality of sections of sectioned cooling ducts 44, ..., 44 'extending along the length of the side walls are designated 47, 47', in the region to which reference numeral 49 is assigned it is the attachable revision area of the electrode support arm.
  • FIG. 5 shows the stiffening of the electrode support arm by intermediate walls 48 inserted into it, which are provided with recesses 48 'for reasons of weight reduction.
  • the design of the wall thickness of the electrode support arm depends on the specific application, then the design of the cooling duct cross-sections.
  • the priority cooling of the electrode support arm via the cooling channels formed in the support arm walls does not preclude the cooling of the region of the electrode support arm adjacent to the furnace by the supply of cooling water to near-isolated regions.
  • the cooling water circuit also results here again by leading from the cooling water channels in walls of the Elektrodentragarms outgoing and outgoing.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Discharge Heating (AREA)
  • Furnace Details (AREA)
  • Resistance Welding (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

A support arm for a water-cooled, current-conducting electrode includes wall elements, wherein each wall element is a flat conductive metal with a hollowed out recess on its outer surface extending over its length. The support arm further includes a cover extending over each recess to define a closed cooling channel within each wall element when the cover is welded to the wall element. The cover includes with an inlet port and an outlet port for cooling water.

Description

Wandungselemente für wassergekühlte, stromführende Elektrodentragarme und aus solchen Wandungselementen erstellte ElektrodentragarmeWall elements for water-cooled, current-carrying electrode support arms and electrode support arms made of such wall elements
Die Erfindung betrifft Wandungselemente für wassergekühlte, stromführende Elektrodentragarme und aus solchen Wandungselementen erstellte Elektrodentragarme.The invention relates to wall elements for water-cooled, current-carrying electrode support arms and made of such wall elements Elektrodentragarme.
Tragarme für die Elektroden von Lichtbogenöfen erfordern der hohen sich beim Schmelzprozeß einstellenden Temperaturen wegen zumindest im ofengefaßnahem Bereich der Wasserkühlung. Vorgeschlagen worden ist in diesem Zusammenhang in zurückliegender Zeit den als Hohlkörper ausgelegten Elektrodentragarm selbst mit Kühlwasser zu beaufschlagen, des weiteren dann auch, dem als Hohlkörper ausgelegten Elektrodentragarm Kühlwasser führende, den Tragarm durchsetzende Rohre zuzuord- nen (EP 0 061 612 Bl, US 3,602,624, US 3,686,421). Aus der unmittelbaren Beaufschlagung des Inneren des als Hohlkörper ausgelegten Elektrodentragarms mit Kühlwasser resultiert, unter Berücksichtigung dessen, daß der Tragarm eine hinreichende Knickfestigkeit aufweisen muß, das Erfordernis einer dem Rechnung tragenden Dimensionierung der Wandungsstärke des Tragarms. Die in aller Regel dann auch vorgesehe- ne Kühlung des Elektrodenspannbügels sowie der Kontaktbacke erfordert hierbei die eigenständige Zuführung von Kühlwasser zum Elektrodenspannbügel und zur Kontaktbacke durch dem Elektrodentragarm zugeordnete Rohre für die Zu- und Ableitung des Kühlwassers zum Elektrodenspannbügel und zur Kontaktbacke. Vorgeschlagen worden ist in jüngerer Zeit dann auch schon, für die Kühl Wasserführung stranggepreßte, den Elektrodentragarm ausbildende Wandungselemente mit Bohrungen für die Kühlwasserzirkulation zu versehen. (EP 0 594 272 B2). Damit entfallen den Elektrodentragarm durchsetzende bzw. mit dem Tragarm zusammengefaßte gesonderte Rohrleitungssysteme. Als nachteilig erweist sich hierbei allerdings die aufwendige Erstellung der stranggepreßten Wandungselemente mit darin ausgebildeten, geschlossenen Kanälen für den Kühlwasserkreislauf. Kostenträchtig erweist sich bei dieser Lösung dann auch, daß es für die Erstellung von Wandungselementen mit voneinander abweichenden Abmessungen und/oder abweichenden Querschnitten der sie durchsetzenden Kühlwasserkanäle gesonderter Werkzeuge bedarf.Supporting arms for the electrodes of electric arc furnaces require high temperatures which occur during the melting process because of at least the area of the water cooling close to the furnace. In this context, it has been proposed in this connection in recent times to act upon the hollow-body electrode support arm itself with cooling water, and then also to assign cooling water leading to the electrode support arm designed as a hollow body through the support arm (EP 0 061 612 Bl, US Pat. No. 3,602,624). US 3,686,421). From the immediate impingement of the interior of the designed as a hollow body Elektrodentragarms with cooling water results, taking into account that the support arm must have a sufficient buckling strength, the requirement of carrying the bill dimensioning the wall thickness of the support arm. The cooling of the electrode tensioning bow and the contact jaw, which as a rule is also provided in this case, requires the independent supply of cooling water to the Elektrodenspannbügel and the contact jaw by the Elektrodentragarm associated pipes for the supply and discharge of cooling water for Elektrodenspannbügel and the contact jaw. It has been proposed in recent times already, for the cooling water flow extruded to provide the Elektrodentragarm forming wall elements with holes for cooling water circulation. (EP 0 594 272 B2). This eliminates the Elektrodentragarm enforcing or combined with the support arm separate piping systems. However, this proves to be disadvantageous in the elaborate preparation of the extruded wall elements with trained, closed channels for the cooling water circuit. Costly proves in this solution then also that it requires separate tools for the creation of wall elements with divergent dimensions and / or different cross sections of the intersecting cooling water channels.
Ausgehend vom aktuellen Stand der Technik liegt der Erfindung die Aufgabe zugrunde, ein in Elektrodentragarme ausbildenden Wandungselementen integriertes Kühlsystem kostengünstiger zu konzipieren, das dann auch größere Spielräume hinsichtlich der Querschnitte sowohl der Wandungselemente als auch der Kühlwasserkanäle zuläßt.Based on the current state of the art, the invention has the object to design a cost-effective integrated in Elektrodentragarme wall elements cooling system, which then allows greater latitude in terms of cross sections of both the wall elements and the cooling water channels.
Die Aufgabe wird mit Wandungselementen für wassergekühlte, stromführende Elektrodentragarme gelöst, die erfindungs gemäß aus einem aus elektrisch leitendem Metall bestehenden Flachprofil besteht, in das auf der die Außenseite des Elektrodentragarms bildenden Flachseite mindestens ein sich über die Länge der Profils erstreckender Rücksprung eingearbeitet ist, der außen- und stirnseitig mit dem Flachprofil durch Ver- schweißung zusammengefaßten, einen geschlossenen Kühlkanal ergebenden Abdeckungen mit jeweils mindestens einem Zugang und mindestens einem Abgang für das den Kühlkanal durchströmende Kühlwasser versehen ist. Ausgestaltungen des erfindungsgemäßen Wandungselements ergeben sich aus den Unteransprüchen 2 bis 7. Die Unteransprüche 8 bis I l heben auf aus den erfindungsgemäßen Wandungselementen erstellbare Elektrodentragarme ab.The object is achieved with wall elements for water-cooled, current-carrying electrode support arms, which consists fiction, according to a consisting of electrically conductive metal flat profile in which on the outside of the Elektrodentragarms forming flat side at least one over the length of the profile extending recess is incorporated, the outside - And frontally with the flat profile by welding combined covers, a closed cooling channel resulting covers each having at least one access and at least one outlet for the coolant channel flowing through the cooling water is provided. Embodiments of the wall element according to the invention will become apparent from the dependent claims 2 to 7. The dependent claims 8 to I l cancel on from the wall elements according to the invention can be created from the electrode support arms.
Für die Fertigung der erfindungsgemäßen Wandungselemente bedarf es keines Spezial- werkzeugs. Das Elektrodentragarme herstellende Unternehmen kann unter Einsatz ihm ohnehin zur Verfügung stehender Standard- Werkzeuge, wie Sägen, Fräsen, Schweißgeräte und Bohrgeräte, die Bestandteile der erfindungsgemäßen Wandungselemente, nämlich das den Rücksprung aufweisende Wandungselement und dessen den Kühlkanal ausbildende Abdeckung, aus kostengünstig beziehbaren Endlosmaterial erstellen und die Bestandteile der Wandungselemente dann auch zusammenfassen, aus denen an Ort und Stelle anschließend der Elektrodentragarm zusammengesetzt wird. Als vorteilhaft erweist sich hierbei dann auch, daß sich zwecks Anpaßparkeit an den speziellen Einsatzfall Wandungselemente voneinander abweichender Breite und Länge, dann auch Wandungselemente mit voneinander abweichenden Kühlkanalquerschnitten ohne weiteres mit den zur Verfügung stehenden Werkzeugen erstellen lassen. Aus erfindungsgemäßen Wandungselementen erstellten Elektrodentragarmen resultiert dann auch die erwünschte Gewichtsreduzierung solcher Elektrodentragarme.For the production of the wall elements according to the invention, no special tool is required. The Elektrodentragarme manufacturing company can use the already existing standard tools, such as saws, milling, welding equipment and drilling equipment, the components of the wall elements according to the invention, namely the return element having wall element and its cooling channel forming cover, create from cost endless material and The components of the wall elements then also summarize, from which in place the Elektrodentragarm is then assembled. It proves to be advantageous in this case also that can be created for the purpose of Anpaßparkeit to the specific application wall elements divergent width and length, then wall elements with divergent cooling channel sections readily with the available tools. From Elektrodentragarmen created by Wandungselementen invention then also results in the desired weight reduction of such electrode support arms.
In der Zeichnung ist die Erfindung anhand eines Ausführungsbeispiels weitergehend erläutert. Es zeigen:In the drawing, the invention with reference to an exemplary embodiment is explained further. Show it:
Figuren Ia und Ib die schematische Darstellung einerFigures Ia and Ib, the schematic representation of a
Lichtbogen-Schmelzanlage,Arc melter
Figur 2a das zugeschnittene Ausgangsmaterial für die Seitenwandungen des Elektrodentragarms, im Querschnitt. Figur 2b eine der Figur 2a entsprechende Darstellung mit in den Grundkörper des Wandungselements eingefrästen Rücksprüngen,Figure 2a shows the cropped starting material for the side walls of the electrode support arm, in cross section. FIG. 2b shows a representation corresponding to FIG. 2a with recesses milled into the main body of the wall element,
Figur 2c das komplettierte erfindungsgemäße Wandungselement,FIG. 2c shows the completed wall element according to the invention,
Figur 3 a das zugeschnittene Ausgangsmaterial für das untere und das obere Wandungselement des Elektrodentragarms, im Querschnitt,3 a shows the cut starting material for the lower and the upper wall element of the electrode support arm, in cross-section,
Figur 3 b eine der Figur 3a entsprechende Darstellung mit in den Grundkörper eingefrästem Rücksprung,FIG. 3 b shows a representation corresponding to FIG. 3 a, with a recess milled into the base body;
Figur 3 c das komplettierte Wandungselement,FIG. 3c shows the completed wall element,
Figur 4 einen ofengefäßnahen Querschnitt durch einen aus erfindungsgemäßen Wandungselementen erstellten Elektrodentragarm,FIG. 4 shows a cross-section close to the furnace vessel through an electrode support arm made from wall elements according to the invention,
Figur 5 einen der Figur 4 entsprechenden, ofen- gefäßferneren Querschnitt durch den E lektrodentragarm .FIG. 5 shows a cross section through the electrode carrier arm corresponding to FIG.
In der in den Figuren Ia und Ib in schematischer Weise dargestellten Elektroschmelzan- läge ist mit 1 1 das Ofengefäß bezeichnet, in dem in der Regel eingesetzter Schrott unter der Einwirkung der in das Ofengefäß abgesenkten Elektroden 12, 12', 12" eingeschmolzen wird. Die Elektroden 12, 12' 12" sind am freien Ende der Elektrodentragarme 13, 13', 13" eingespannt (131), sie werden entsprechend dem fortschreitenden Ab- brand während der Einschmelzprozesse abgesenkt und nach fortgeschrittenem Abbrand ausgewechselt. Sowohl für die Entleerung des Ofengefäßes 11 nach abgeschlossenem Schmelzprozeß, in der Regel durch Kippen des Ofengefäßes 11, als auch für das Auswechseln der Elektroden bedarf es sowohl des Senkens und Hebens der Elektroden 12, 12', 12", dann auch des Herausverschwenkens der Elektroden aus dem unmittelbaren Bereich des Ofengefäßes 1 1. Hierfür sind die Elektrodentragarme 13, 13', 13" an einer Tragarmsäule 14 im Sinne des Doppelpfeiles A senk- und hebbar sowie im Sinne des Doppelpfeiles B in der Horizontalen verschwenkbar gelagert. Die Elektrodentragarme 13, 13', 13" und die am freien Ende der Elektrodentragarme befindlichen Spannbügel 131 für die Elektroden 12, 12', 12" erfordern im Hinblick auf die im Umfeld des Ofengefäßes 11 während des Schmelzprozesses auftretenden hohen Temperaturen eine in- tensive Kühlung, in der Regel durch den Tragarmen und den Spannbügeln zugeführtes Kühlwasser.In the electric melting plant shown schematically in FIGS. 1a and 1b, 1 1 denotes the furnace vessel, in the scrap generally used below The electrodes 12, 12 '12 "are clamped (131) at the free end of the electrode support arms 13, 13', 13", they become in accordance with the progressive Ab Both the emptying of the furnace vessel 11 after completion of the melting process, usually by tilting the furnace vessel 11, as well as for the replacement of the electrodes requires both the lowering and lifting of the electrodes 12, 12 ', 12 ", then also the herausverschwenkens the electrodes from the immediate area of the furnace vessel 1 1. For this purpose, the electrode support arms 13, 13', 13" on a Tragarmsäule 14 in the sense of the double arrow A can be lowered and raised and in the sense of the double arrow B are mounted pivotably in the horizontal, the electrode support arms 13, 13 ', 13 "and the clamps located at the free end of the electrode support arms 131 for the electrodes 12, 12 ', 12 "require, in view of the high temperatures occurring in the surroundings of the furnace vessel 11 during the melting process, intensive cooling, generally cooling water supplied by the support arms and the clamping straps.
Aus Endlosmaterial zugeschnittene Bestandteile der erfindungsgemäßen Wandungselemente für Elektrodentragarme sind in den Figuren 2a uns 3 a dargestellt. Es handelt sich dabei um die die breiteren Seitenwandungen ausbildenden Grundkörper 22 und die eine geringere Breite aufweisenden, die untere und die obere Wandung der Elektrodentragarme ausbildenden Grundkörper 32 sowie die die Wandungselemente komplettierenden Abdeckungen geringerer Stärke 23, 23" bzw. 33. Den Figuren 2b bzw. 3b sind die Grundkörper 22 bzw. 32 der Wandungselemente 21 und 31 mit darin eingefrästen Rücksprüngen 24 bzw. 34 zu entnehmen. Die Figuren 2c und 3c zeigen die komplettierten Wandungselemente 21 und 31 mit den darin ausgebildeten Kühlwasserkanälen 27, 27' bzw. 37. Die bleibende Zusammenfassung der Abdeckungen 23 mit dem Grundkörper 21 des Wandungselements 21 durch eingesenkte (25) Schweißnähte 26 ist in Figur 2c wiedergegeben. In entsprechender Weise sind die Bestandteile des aus Figur 3c zu entnehmenden Wandungselements 31 bleibend zusammengefaßt (36). Im erforderli- chen Umfang weisen die Abdeckungen 23, 23' bzw. 33 strichpunktiert angedeutete Bohrungen 28 bzw. 38 zum Anschluß von Zu-, Ab- und Überleitungen zum Elektroden- spannbügel sowie zur Kontaktbacke für das die Kühlkanäle 27, 27' bzw. 37 durchströmende Wasser auf.Components of the wall elements according to the invention for electrode support arms tailored from endless material are shown in FIGS. 2 a and 3 a. These are the main body 22 forming the wider side walls and the base body 32 having a smaller width, forming the lower and upper walls of the electrode support arms, and the smaller thickness covers 23, 23 "and 33, respectively, which complete the wall elements. FIGS 3b, the base bodies 22 and 32 of the wall elements 21 and 31 can be seen with recesses 24 and 34 milled in. Figures 2c and 3c show the completed wall elements 21 and 31 with the cooling water channels 27, 27 'and 37 formed therein. The permanent combination of the covers 23 with the main body 21 of the wall element 21 by countersunk (25) welds 26 is shown in Fig. 2c The components of the wall element 31 to be taken from Fig. 3c are combined in a corresponding manner (36). Chen extent, the covers 23, 23 'and 33 dash-dotted lines indicated holes 28 and 38 for connection of supply, Ab- and transfers to the electrode clamping bracket and the contact jaw for the cooling channels 27, 27' and 37 by flowing water ,
In dem in Figur 4 wiedergegebenen ofennahen Querschnitt durch einen aus erfindungsgemäßen Wandungselementen erstellten Elektrodentragarm 41 sind mit 42, 42' die die Seitenwandungen des Elektrodentragarms bildenden Wandungselemente bezeichnet und mit 43, 43' die die Unter- und die Oberseite des Elektrodentragarms bildenden Wan- dungselemente. Die in den Seitenwandungen 42, 42' ausgebildeten Kühlkanäle 44..., 44'" werden vom sowohl den Elektrodentragarm als auch den Elektrodenspannbügel beaufschlagenden Kühlwasser durchströmt. Die Zu- und Ableitung des Kühlwassers zum bzw. vom nicht dargestellten Elektrodenspannbügel ist durch die Pfeilfolge C - C angedeutet. Im speziellen Fall werden die Seitenwandungen 42, 42' und die die Unter- seite und die Oberseite des Elektrodentragarms bildenden Wandungselementen 43, 43' sowie der Elektrodenspannbügel und die Kontaktbacke eigenständig mit Kühlwasser beaufschlagt. Die Kühlwasserbeauschlagungen können aber auch gemeinsam über entsprechende, von in den Kühlkanälen der Seitenwandungen ausgebildeten Verzweigungen zusammengefaßt sein. Mit 46, 46' sind die ofenseitigen Anschlüsse für den Kühl- Wasserkreislauf im Elektrodenspannbügel bezeichnet, die an den Kühlkanälen 44', 44" in den Seitenwandungen 42, 42' liegen. Anschlüsse für Verzweigungen von einen mit einem weiteren mehrerer Abschnitte der sich über die Länge der Seitenwandungen erstreckenden in Abschnitte unterteilten Kühlkanäle 44..., 44'" sind mit 47, 47' bezeichnet. Bei dem Bereich, dem die Bezugsziffer 49 zugeschrieben ist, handelt es sich um den zusetzbaren Revisionsbereich des Elektrodentragarms.In the furnace-like cross section reproduced in FIG. 4 by an electrode support arm 41 made from wall elements according to the invention, 42, 42 'designate the wall elements forming the side walls of the electrode support arm and 43, 43' the wall elements forming the bottom and the top of the electrode support arm. The cooling channels 44, 44 '"formed in the side walls 42, 42 are flowed through by the cooling water which acts on both the electrode support arm and the electrode tensioning bow The supply and discharge of the cooling water to or from the electrode clamping bracket is not illustrated by the arrow sequence C In the special case, cooling water is applied independently to the side walls 42, 42 'and the wall elements 43, 43' forming the lower side and the upper side of the electrode support arm, as well as the electrode clamping yokes and the contact jaw 46, 46 'are the ports on the outside of the cooling water circuit in the Elektrodenspannbügel located on the cooling channels 44', 44 "in the side walls 42, 42 'lie. Branches for branching from one to a plurality of sections of sectioned cooling ducts 44, ..., 44 'extending along the length of the side walls are designated 47, 47', in the region to which reference numeral 49 is assigned it is the attachable revision area of the electrode support arm.
Figur 5 ist die Aussteifung des Elektrodentragarms durch in ihn eingefügte Zwischenwände 48 zu entnehmen, die aus Gründen der Gewichtsreduzierung mit Aussparungen 48' versehen sind. Die Auslegung der Wandungsstärken des Elektrodentragarms hängt vom speziellen Einsatzfall ab, dann auch die Auslegung der Kühlkanalquerschnitte. Die vorrangige Kühlung des Elektrodentragarms über die in den Tragarmwandungen ausgebildeten Kühlkanäle schließt die Kühlung des an den Ofen angrenzenden Bereichs des Elektrodentragarms durch die Zuführung von Kühlwasser in ofennahe abgeschottete Bereiche nicht aus. Der Kühlwasserkreislauf ergibt sich auch hierbei wieder durch von den Kühlwasser führenden Kanälen in Wandungen des Elektrodentragarms ausgehenden Zu- und Abgängen. FIG. 5 shows the stiffening of the electrode support arm by intermediate walls 48 inserted into it, which are provided with recesses 48 'for reasons of weight reduction. The design of the wall thickness of the electrode support arm depends on the specific application, then the design of the cooling duct cross-sections. The priority cooling of the electrode support arm via the cooling channels formed in the support arm walls does not preclude the cooling of the region of the electrode support arm adjacent to the furnace by the supply of cooling water to near-isolated regions. The cooling water circuit also results here again by leading from the cooling water channels in walls of the Elektrodentragarms outgoing and outgoing.
BezugsziffernlisteReferences list
1 1 Ofengefäß1 1 oven vessel
12, 12', 12" Elektroden12, 12 ', 12 "electrodes
13, 13', 13" Elektrodentragarme13, 13 ', 13 "electrode support arms
131 Einspannungen, Spannbügel131 clamps, clamps
14 Tragarmsäule14 support column
21 Wandungselement größerer Breite21 wall element of greater width
22 Grundkörper22 basic body
23 Abdeckung23 cover
24 Rücksprung24 return
25 Einsenkung25 depression
26 Schweißnähte26 welds
27, 27' Kühlkanäle27, 27 'cooling channels
28 Bohrungen28 holes
31 Wandungselement geringerer Breite31 wall element of lesser width
32 Grundkörper j j Abdeckung32 basic body j j cover
34 Rücksprung34 return
36 Schweißnaht36 weld
37 Kühlkanal37 cooling channel
38 Bohrungen38 holes
41 Elektrodentragarm41 electrode support arm
42, 42' Seitenwandungen,42, 42 'side walls,
43, 43' Wandungen bodenseitig und über Kopf43, 43 'walls on the bottom side and overhead
44..., 44"' Kühlkanäle44 ..., 44 "'cooling channels
45 Schweißnähte45 welds
46, 46' ofenseitige Anschlüsse46, 46 'oven-side connections
47, 47' zusätzliche Anschlüsse47, 47 'additional connections
48 Zwischenwände48 partitions
48' Aussparungen48 'recesses
49 Revisionsbereich49 revision area
A TragarmhubA Tragarmhub
B TragarmverschwenkungB swing arm swivel
C KühlwasservorlaufC cooling water supply
C Kühlwasserrücklauf C cooling water return

Claims

Patentansprüche claims
1. Wandungselement für einen wassergekühlten, stromführenden Elektrodentragarm, dadurch gekennzeichnet, daß es aus einem aus elektrisch leitendem Metall bestehenden Flachprofil (z.B. 22) besteht, in das auf der die Außenseite des Elektrodentragarms bildenden Seite mindestens ein sich über die Länge der Profils erstre- ckender Rücksprung (z. B. 24) eingearbeitet ist, der außen- und stirnseitig mit einer mit dem Flachprofϊl (22) durch Verschweißung (z.B. 26) zusammengefaßten, einen geschlossenen Kühlkanal (z.B. 27) ergebenden Abdeckung (z.B. 23) mit jeweils mindestens einem Zugang und mindestens einem Abgang (z. B. 28) für das den Kanal (27) durchströmende Kühlwasser versehen ist.1. wall element for a water-cooled, current-carrying Elektrodentragarm, characterized in that it consists of a made of electrically conductive metal flat profile (eg 22), in which on the outside of the Elektrodentragarms forming side at least one erstre- ckender over the length of the profile Return (eg 24) is incorporated, the outside and the front side with a Flachprofϊl (22) by welding (eg 26) combined, a closed cooling channel (eg 27) resulting cover (eg 23), each with at least one access and at least one outlet (eg 28) for the cooling water flowing through the channel (27) is provided.
2. Wandungselement nach Anspruch 1, dadurch gekennzeichnet, daß sie aus Aluminium oder ein Aluminiumlegierung besteht.Second wall element according to claim 1, characterized in that it consists of aluminum or an aluminum alloy.
3. Wandungselement nach Anspruch 1 oder Anspruch 2, dadurch gekennzeichnet, daß die Abdeckung (23) eine plane Außenwandung des Elektrodentragarms ergebend, sich in im Randbereich des Rücksprungs (24) ausgebildete Einsenkungen (25) einfügen.3. Wall element according to claim 1 or claim 2, characterized in that the cover (23) resulting in a plane outer wall of the electrode support arm, in the edge region of the recess (24) formed depressions (25) insert.
4. Wandungselement nach den Ansprüchen 1 bis 3, gekennzeichnet durch dem Quer- schnitt des Elektrodentragarms angepaßte Breiten.4. wall element according to claims 1 to 3, characterized by the cross-section of the Elektrodentragarms adapted widths.
5. Wandungselement nach den Ansprüchen 1 bis 4, gekennzeichnet durch eine Materialstärke des Wandungselements in der Größenordnung von 20 bis 70 mm.5. wall element according to claims 1 to 4, characterized by a material thickness of the wall element in the order of 20 to 70 mm.
6. Wandungselement nach den Ansprüchen 1 bis 5, gekennzeichnet durch eine Mehrzahl von sich im Abstand voneinander über die Länge des Wandungselementes (z. B. 21) erstreckenden Kühlkanälen (27, 27'). 6. wall element according to claims 1 to 5, characterized by a plurality of spaced apart over the length of the wall element (eg 21) extending cooling channels (27, 27 ').
7. Wandungselement nach den Ansprüchen 1 bis 6, dadurch gekennzeichnet, daß im Bereich des das freie Ende des Elektrodentragarms bildenden Bereichs des Wandungselements Anschlüsse für die Kühlwasserbeaufschlagung des am Tragarm anzusetzenden Elektrodenspannbügels ausgebildet sind.7. wall element according to claims 1 to 6, characterized in that in the region of the free end of the electrode support arm forming region of the wall element connections are formed for the cooling water to be applied to the support arm Elektrodenspannbügels.
8. Aus Wandungselementen nach einem oder mehreren der Ansprüche 1 bis 7 ausgebildeter wassergekühlter, stromführender, kastenförmiger Elektrodentragarm, gekennzeichnet durch im Innern des Elektrodentragaims in Abständen eingefügte, sich an den Wandungselementen abstützende Stabilisierungsstege.8. From Wandungselementen according to one or more of claims 1 to 7 trained water-cooled, current-carrying, box-shaped Elektrodentragarm, characterized by inserted in the interior of the Elektrodentragaims at intervals, is supported on the wall elements stabilizing webs.
9. Elektrodentragarm nach Anspruch 8, gekennzeichnet durch in den Elektrodentragarm (41) im Abstand eingefügte, sich an den Wandungselementen des Elektrodentragarms abstützende, den Tragarm stabilisierende Zwischenwände (48).9. Elektrodentragarm according to claim 8, characterized by in the Elektrodentragarm (41) inserted at a distance, on the wall elements of the Elektrodentragarms supporting, the support arm stabilizing partitions (48).
10. Elektrodentragarm nach Anspruch 9, dadurch gekennzeichnet, daß die Zwischenwände (48) mit einer rahmenbildenden Aussparung (48") versehen sind.10. Elektrodentragarm according to claim 9, characterized in that the intermediate walls (48) with a frame-forming recess (48 ") are provided.
1 1. Elektrodentragara nach den Ansprüchen 8 bis 10, dadurch gekennzeichnet, daß die stoßenden, den Elektrodentragarm ausbildenden Wandungselemente im Stoßbe- reich durch eingesenkte Schweißnähte (45) zusammengefaßt sind. 1 1. Elektrodentragara according to claims 8 to 10, characterized in that the abutting, the Elektrodentragarm forming wall elements in the joint area are summarized by sunken welds (45).
EP07764634A 2006-06-13 2007-06-13 Wall elements for water-cooled, current-conducting electrode support arms and electrode support arms produced from such wall elements Not-in-force EP2033493B1 (en)

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PL07764634T PL2033493T3 (en) 2006-06-13 2007-06-13 Wall elements for water-cooled, current-conducting electrode support arms and electrode support arms produced from such wall elements

Applications Claiming Priority (2)

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DE102006027648A DE102006027648A1 (en) 2006-06-13 2006-06-13 Wall elements for a water-cooled, current-carrying electrode support arm and consisting of such wall elements Elektrodentragarme
PCT/EP2007/005198 WO2007144154A1 (en) 2006-06-13 2007-06-13 Wall elements for water-cooled, current-conducting electrode bearing arms and electrode bearing arms produced from such wall elements

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EP2033493B1 EP2033493B1 (en) 2012-01-11

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EP (1) EP2033493B1 (en)
JP (1) JP2009540260A (en)
KR (1) KR101159883B1 (en)
AT (1) ATE541435T1 (en)
DE (1) DE102006027648A1 (en)
ES (1) ES2377019T3 (en)
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CN110553814B (en) * 2019-08-26 2024-03-15 中国航天空气动力技术研究院 Three-arm model supporting device for height Wen Liuchang

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US8798113B2 (en) 2014-08-05
EP2033493B1 (en) 2012-01-11
KR101159883B1 (en) 2012-06-25
KR20090020650A (en) 2009-02-26
US20090207877A1 (en) 2009-08-20
JP2009540260A (en) 2009-11-19
ATE541435T1 (en) 2012-01-15
DE102006027648A1 (en) 2007-12-20
PL2033493T3 (en) 2012-06-29
ES2377019T3 (en) 2012-03-21
WO2007144154A1 (en) 2007-12-21

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