CH93417A - Rust on electric ovens. - Google Patents

Rust on electric ovens.

Info

Publication number
CH93417A
CH93417A CH93417DA CH93417A CH 93417 A CH93417 A CH 93417A CH 93417D A CH93417D A CH 93417DA CH 93417 A CH93417 A CH 93417A
Authority
CH
Switzerland
Prior art keywords
grate
frame
bars
electric ovens
electrically
Prior art date
Application number
Other languages
German (de)
Inventor
Kvafveindustri Aktiebolaget
Original Assignee
Kvafveindustri Ab
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 Kvafveindustri Ab filed Critical Kvafveindustri Ab
Publication of CH93417A publication Critical patent/CH93417A/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D11/00Arrangement of elements for electric heating in or on furnaces
    • F27D11/02Ohmic resistance heating
    • F27D11/04Ohmic resistance heating with direct passage of current through the material being heated
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B7/00Heating by electric discharge
    • H05B7/18Heating by arc discharge
    • H05B7/20Direct heating by arc discharge, i.e. where at least one end of the arc directly acts on the material to be heated, including additional resistance heating by arc current flowing through the material to be heated

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Details (AREA)

Description

  

  Rost an elektrischen Öfen.    Gegenstand vorliegender Erfindung ist  ein Rost für     elektrische    Öfen zum Schmel  zen von     elektrisch    leitendem Material mit.  zwei Elektroden. Bei Ofen dieser Art, die  mit einem Rost aus Metallstäben versehen  sind, kann es     vorkommen,-    dass der Strom  seinen Weg durch die Stäbe nimmt und  nicht voll zum Erwärmen des zu     schmal-          zenden    Materials verwendet wird.  



  Zweck vorliegender Erfindung ist, diesen  Nachteil zu beheben, und zwar erfolgt dies  dadurch, dass der Rost in bezug auf die Elek  troden so angeordnet und so geformt, ist, dass  er dem Strom einen schlechten     Leitungswein     bietet.  



  In der beifolgenden Zeichnung ist ein  Ausführungsbeispiel des     Erfindungsgegen-          standes    dargestellt, und zwar zeigt:       Fig.    1 einen Rost mit     drehbaren    Rost  stäben in Vertikalschnitt,       Fig.    2 den Rost. in Ansicht.  



       Fig.    3 das Ende eines Roststabes mit zu  gehörigem Lager.  



  Der gezeichnete Rost. besitzt parallel zu  einanderliegende     Roststäbe    i, welche in La  gern 5 drehbar gelagert sind. Lager 5 sind         mittelst        Schraubei:   <B>7</B> mit einem     Bahnren    2  aus     [)-Eisen    verbunden, und zwar     ist.    zwi  schen     dem.    Lager 5 und dem Rahmen 2     und     zwischen einer     Unterla2--scheibe        -',    und     dein     Rahmen 2 Isoliermaterial eingelegt.

   Die       Stube    1 sind elektrisch isoliert     voneinander     im Rahmen 2, sie stehen     rechtwinklig    zu  einer durch die beiden Elektroden gelegten  Vertikalebene. Die Roststäbe     1.    sind nahe den  Enden mit einer Unterbrechungsstelle ver  sehen:

   sie können jedoch auch von einem  Rahmen von elektrisch     nichtleitendem    Mate  riale     getra--en         -erden.    Zwischen den End  flanschen der Roststube 1 und der     Endstücke     4 ist eine elektrisch     isolierte        Zwischenlage     3     an.eorcln.et,        welche    zum Beispiel durch iso  lierte, auf der Zeichnung nicht gezeigte  Schrauben     zwischen        clen        Flanschen        fert;@-          halten    werden kann.

   Zum Erleichtern der  Bewegung des durch den Rost fallenden Ma  terials sind die Stäbe mit. Spitzen     versehen.     Durch die Anordnung senkrecht zur Ebene  durch die Elektroden     und        durch    das An  bringen von     isolierenden        Zwischenlaven     wird     cler        Stromiibergang    über die Roststäbe  erschwert, und .es wird die ganze Strom-           energie    zur     Erhitzung    des zu     schmelzenden          :\!laffria.ls        verwendet.  



  Rust on electric ovens. The present invention is a grate for electric furnaces for melting electrically conductive material with. two electrodes. With ovens of this type, which are provided with a grate made of metal rods, it can happen that - the current takes its way through the rods and is not fully used to heat the material to be narrowed.



  The purpose of the present invention is to remedy this disadvantage, and this is done in that the grate is arranged and shaped with respect to the electrodes in such a way that it offers poor conduction to the current.



  The following drawing shows an embodiment of the subject matter of the invention, namely: FIG. 1 shows a grate with rotatable grate bars in vertical section, FIG. 2 shows the grate. in view.



       Fig. 3 shows the end of a grate bar with associated bearing.



  The drawn rust. has parallel grate bars i, which like 5 are rotatably mounted in La. Bearings 5 are connected by means of screws: <B> 7 </B> to a track 2 made of [) -iron, namely is. between the. Bearing 5 and the frame 2 and between a washer - ', and your frame 2 insulating material inserted.

   The rooms 1 are electrically insulated from one another in the frame 2, they are at right angles to a vertical plane laid through the two electrodes. The grate bars 1. have an interruption point near the ends:

   However, they can also be touched by a frame made of electrically non-conductive material. Between the end flanges of the grate chamber 1 and the end pieces 4 is an electrically insulated intermediate layer 3 an.eorcln.et, which can be held between the flanges, for example, by insulated screws (not shown in the drawing) between the flanges.

   To facilitate the movement of the material falling through the grate, the bars are with. Tips. The arrangement perpendicular to the plane through the electrodes and the attachment of insulating intermediate lavas make it difficult for the current to pass over the grate bars, and all of the current energy is used to heat the oil to be melted.

 

Claims (1)

PATENTANSPRUCH: Rost an elektrischen Öfen zum Erhitzen von elektrisch leitendem :Material mittelst Ele'aroden, claduich gekennnzeichnet, dass R.c--#tst-äbe in bezug auf die Ofenelektroden so an-eorclnet und so gebaut sind, dass sie dem Strom einen schlechten Leitungsweg bieten, zunn Zweck, PATENT CLAIM: Grate on electric ovens for heating electrically conductive: material by means of electrodes, marked that Rc - # tst-äbe in relation to the oven electrodes are so attached and built that they have a poor conduction path for the current provide, for the purpose, cl.cn Strom mindestens annä- heriid vollständig durch das zu erhitzende llaerial zu f,'thren. 11N TERAN SPRtrCHE 1.. l ä o@ t an -elekirischen Ofen nach Patentan spruch, cladtirch gekennzächnet, cl.cn current to flow at least approximately completely through the area to be heated. 11N TERAN LANGUAGE 1 .. l ä o @ t an -electrical oven according to patent claim, cladtirch marked, dass die 1@a@ststäbe voneinander isoliert sind. 1sC@t an elektrischen Ofen nach Patentan- fruch. und Unteranspruch i, dadurch ge- kennzeichnet, dass jeder Roststab von zwei Isolierschichten unterbrochen ist, so dass die Tragzapfen der Poststäbe von dem Teile der Roststäbe elektrisch isoliert. blei ben, welcher in Berührung mit der :Masse im Ofen steht. 3. that the 1 @ a @ rods are isolated from each other. 1sC @ t on an electric furnace based on a patent application. and dependent claim i, characterized in that each grate bar is interrupted by two insulating layers, so that the support pins of the mail bars are electrically insulated from the part of the grate bars. stay in contact with the: mass in the oven. 3. Rost an elektrischen Öfen nach Patentan spruch und Unteransprüchen 2 und 3, da durch gekennzeichnet, dass die Roststäbe drehbar in vciz einem den Rost umgeben den Rahmen getragenen Lagern sind, und diese von dem sio tragenden Rahmen elektrisch isoliert sind. 4. Rost an elektrischen Öfen nach Patentan spruch, dadurch gekennzeichnet, dass die R.oststä.be von einem Rahmen von elek trisch nichtleitendem Material getragen werden. Grate on electric ovens according to claim and dependent claims 2 and 3, characterized in that the grate bars are rotatable in a bearing supported by the frame surrounding the grate, and these are electrically isolated from the frame supporting the frame. 4. Grate on electric ovens according to patent claim, characterized in that the R.oststä.be are supported by a frame made of electrically non-conductive material.
CH93417D 1921-01-28 1921-01-28 Rust on electric ovens. CH93417A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH93417T 1921-01-28

Publications (1)

Publication Number Publication Date
CH93417A true CH93417A (en) 1922-03-01

Family

ID=4350949

Family Applications (1)

Application Number Title Priority Date Filing Date
CH93417D CH93417A (en) 1921-01-28 1921-01-28 Rust on electric ovens.

Country Status (1)

Country Link
CH (1) CH93417A (en)

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