DE886795C - Support arm for electrodes of arc furnaces - Google Patents

Support arm for electrodes of arc furnaces

Info

Publication number
DE886795C
DE886795C DES12235D DES0012235D DE886795C DE 886795 C DE886795 C DE 886795C DE S12235 D DES12235 D DE S12235D DE S0012235 D DES0012235 D DE S0012235D DE 886795 C DE886795 C DE 886795C
Authority
DE
Germany
Prior art keywords
support arm
electrodes
arc furnaces
tubes
inner tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DES12235D
Other languages
German (de)
Inventor
Paul Sernitz
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.)
Demag Elektrometallurgie GmbH
Original Assignee
Demag Elektrometallurgie GmbH
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 Demag Elektrometallurgie GmbH filed Critical Demag Elektrometallurgie GmbH
Priority to DES12235D priority Critical patent/DE886795C/en
Application granted granted Critical
Publication of DE886795C publication Critical patent/DE886795C/en
Expired legal-status Critical Current

Links

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
    • H05B7/103—Mountings, supports or terminals with jaws

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Discharge Heating (AREA)
  • Furnace Details (AREA)

Description

Die schweren Elektroden bei Lichtbogenöfen werden meist von kräftigen Tragarmen getragen, die sich an dem Ofengestell oder einem besonderen Ofenjoch abstützen. Die Ausbildung dieser Tragarme bereitet deshalb Schwierigkeiten, weil die Spulen sehr heiß werden und die Tragarme gekühlt «-erden müssen. Im allgemeinen wird die. Kühlung auf die Weise erreicht, daß man den Tragarm aus zwei konzentrischen Rohren aufbaut, wobei der Zwischenraum von einem Kühlmittel, meistens Wasser, durchflossen ist. Es hat sich nun herausgestellt, daß infolge der ungleichen Ausdehnung von Innen- und Außenrohr häufig Spannungen auftreten, die zu Beschädigungen der Tragarme und zu deren frühzeitiger Zerstörung führen können.The heavy electrodes in electric arc furnaces are usually made up of powerful ones Support arms carried, which are supported on the furnace frame or a special furnace yoke. The formation of these support arms is difficult because the coils become very hot and the support arms have to be cooled down. In general, the. Cooling is achieved in such a way that the support arm consists of two concentric tubes builds up, with a coolant, usually water, flowing through the space is. It has now been found that due to the unequal expansion of interior and outer tube often occur that can damage the support arms and tensions can lead to their premature destruction.

Der Erfindung liegt nun die Aufgabe zugrunde, diese Schwierigkeiten zu vermeiden und einen vollkommen betriebssicheren Tragarm auszubilden.The invention is based on these difficulties to avoid and to train a completely reliable support arm.

Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß im inneren Rohr an einer oder mehreren Stellen federnde Teile eingesetzt sind. Insbesondere können .dafür federnde Ringteller dienen, die den Ausgleich der Längendifferenz zwischen äußerem und innerem Rohr bei unterschiedlicher Erwärmung der beiden Rohre übernehmen. In den Abb. i und 2 ist eine Ausführungsform der Erfindung schematisch .dargestellt. Mit i ist die Kohleelektrode bezeichnet, die durch den Trägarm 2, der sich an dem in der Zeichnung nicht dargestellten Traggerüst abstützt, gehalten wird. Das Außenrohr 3 ist mit dem Innenrohr q. an den Enden verschweißt. In Abb. i .sind die zum Ausgleich der Längenänderungen dienenden Ringtellerfedern 5 deutlich zu erkennen. In dem innerhalb der beiden Rohre liegenden zylindrischen Innenrohr befindet sich die Zugstange 6, die zum festen Einspannen der Kohleelektrode i dient.According to the invention this object is achieved in that inside Pipe resilient parts are used at one or more points. In particular can be used for resilient ring plates that compensate for the difference in length between the outer and inner tube with different heating of the two tubes take over. An embodiment of the invention is shown schematically in FIGS .shown. The carbon electrode is denoted by i, which is supported by the support arm 2, which is supported on the supporting structure, not shown in the drawing, held will. The outer tube 3 is with the inner tube q. welded at the ends. In fig. i. the annular disc springs 5 used to compensate for the changes in length are clear to recognize. In the cylindrical inner tube lying within the two tubes there is the pull rod 6, which is used to firmly clamp the carbon electrode i.

Claims (2)

PATENTANSPRÜCHE: i. Tragarm für Elektroden von Lichtbogenöfen, der aus zwei konzentrisch angeordneten Rohren besteht, wobei der Zwischenraum zwischen den beiden Rohren von einem Kühlmittel durchflossen sein kann, dadurch gekennzeichnet, daß im inneren Rohr an `einer oder mehreren Stellen federnde Teile eingesetzt sind. PATENT CLAIMS: i. Support arm for electrodes of arc furnaces, the consists of two concentrically arranged tubes, the space between a coolant can flow through the two tubes, characterized in that that resilient parts are inserted in one or more places in the inner tube. 2. Tragarm nach Anspruch i, dadurch gekennzeichnet, daß federnde Ringteller eingesetzt sind.2. Support arm according to claim i, characterized in that resilient ring plates are used are.
DES12235D 1944-08-12 1944-08-12 Support arm for electrodes of arc furnaces Expired DE886795C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES12235D DE886795C (en) 1944-08-12 1944-08-12 Support arm for electrodes of arc furnaces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES12235D DE886795C (en) 1944-08-12 1944-08-12 Support arm for electrodes of arc furnaces

Publications (1)

Publication Number Publication Date
DE886795C true DE886795C (en) 1953-08-17

Family

ID=7473912

Family Applications (1)

Application Number Title Priority Date Filing Date
DES12235D Expired DE886795C (en) 1944-08-12 1944-08-12 Support arm for electrodes of arc furnaces

Country Status (1)

Country Link
DE (1) DE886795C (en)

Similar Documents

Publication Publication Date Title
DE886795C (en) Support arm for electrodes of arc furnaces
DE3149365C2 (en) Procedure for laying compensator-free district heating pipes
AT162029B (en) Device for constant change in inductance.
DE1920230A1 (en) Magnetic filter
DE835092C (en) Corrugated pipe expansion compensator
DE623195C (en) Electric resistance furnace
AT131010B (en) Metal vapor rectifier.
DE890083C (en) Outdoor switchgear with pipelines
AT157349B (en) Tubular, vacuum-tight bushing through ceramic bodies.
DE568157C (en) Glow cathode for electron tubes
AT24058B (en) Rotatable ozone apparatus.
AT140197B (en) Electric furnace with graphite resistance.
DE522000C (en) Metal vapor rectifier with protective sleeves surrounding the anodes and used to guide the arc
AT91156B (en) Hot water or steam boiler for high-voltage alternating current with adjustable heating through fixed electrodes.
AT152237B (en) Metal vapor rectifier with grids arranged in anode protection tubes.
AT137093B (en) High-voltage and radiation-proof container for X-ray tubes.
DE636890C (en) Device for the production of electrical tubular heating elements
AT87576B (en) Vacuum tube for great performance.
DE739646C (en) Holder for frustoconical deflection electrodes of cathode ray tubes with radial deflection
AT70634B (en) Ammeter for high frequency currents based on the induction principle.
DE378147C (en) Induction furnace
AT115823B (en) Protective reactor for high-voltage systems.
DE973755C (en) High voltage bushing current transformer
DE568013C (en) Ball cage, especially for turntables
AT94791B (en) Bushing insulator for high voltages with glow rings attached to the socket edges.