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DE1565300A1 - Electric arc furnace - Google Patents

Electric arc furnace

Info

Publication number
DE1565300A1
DE1565300A1 DE19641565300 DE1565300A DE1565300A1 DE 1565300 A1 DE1565300 A1 DE 1565300A1 DE 19641565300 DE19641565300 DE 19641565300 DE 1565300 A DE1565300 A DE 1565300A DE 1565300 A1 DE1565300 A1 DE 1565300A1
Authority
DE
Germany
Prior art keywords
electric arc
furnace
arc furnace
electrodes
compensation
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.)
Pending
Application number
DE19641565300
Other languages
German (de)
Inventor
Gustav-Adolf Sixel
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.)
Fried Krupp AG
Original Assignee
Fried Krupp 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 Fried Krupp AG filed Critical Fried Krupp AG
Publication of DE1565300A1 publication Critical patent/DE1565300A1/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • H05B7/02Details
    • H05B7/11Arrangements for conducting current to the electrode terminals

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)

Description

Elekt ro-Lichtb ogenof en Die Erfindung betrifft Elektro-Lichtbogenöfen, bei denen die Sekundärleitunen, d. h. die Leitungen.vornTransforma- tor zu den Elektroden, in offener Dreieckschaltung verlegt sind. Bei den Stromzuführungen zu den Elektroden dieser Ele.tro-Lichtbogenöfen kann man drei verschiedene Leiter- teile unterscheiden, und zwar einen Teil, der von den in ihrer Höhe verstellbaren Elektroden aus dem unmittelbaren Ofe£ia@:.,r:ich herausführt, einen zweiten Teil, der von dem feststehenden Transformator bis in die Nähe des Ofenbereiches tiihrt soF,iie einen dritten flexiblen Teil, der die beiden anderen Ileile miteinander verbindet. Um die Induktivität dieser Sekundärleitungen so niedrig wie mö--lich zu halten, werden Hin- und Rückleitung jeder Phase mit @@r@@@@l.chst gerin-em Abstand voneinander parallel verlegt,. um eine weitgehende Kompensation zu erreichen. Durch die ge- bri.uchlichen Ofenr=onstruktionen bedingt, ist es üblich, den erstgenannten Leiterteil horizontal zu verlegen. Stehen nun dia beiden mit Hin- und Rückl::itung einer Phase verbundenen Elektroden nicht. auf cleieher Höhe, so wird ihre Kompensation b:.@cintrwe@ltijt. Überstei-t die Höhendifferenz ein gewisses Maß, so findet für-diesen Leiterteil praktisch keine Kompen- sation mehr statt. ` Dieser Iachteil wird nach der Erfindung dadurch vermieden, daß die aus den uwaittelbaren Bereich des Ofengefäßes herausführenden 'Teile der Sekundärleitungen parallel zu den El.ektrodenachsen verlegt sind. In der Zeichnung ist ein Elektroofen nach der Erfindung schematisch darcesbellt. Electric arc furnace The invention relates to electric arc furnaces in which the secondary lines, i.e. the lines in front of the transformer gate to the electrodes, laid in an open delta connection are. With the power supply to the electrodes this Ele.tro arc furnaces can have three different conductor parts, namely a part that differs from those in their height adjustable electrodes from the immediate Ofe £ ia @:., R: i leads out a second part, that of the stationary transformer up to the vicinity of the furnace area So, iie creates a third flexible part that connects the two other Ileile connects with each other. To make the inductance of these secondary lines as low as possible to keep it going back and forth of each phase Laid parallel with @@ r @@@@ l.chst little distance from each other. to achieve extensive compensation. Due to the Due to broken furnace designs, it is common to use the first-mentioned ladder section to be laid horizontally. Stand now both connected with the back and forth flow of a phase Electrodes not. at a clever height, so will their compensation b:. @ cintrwe @ ltijt. The height difference exceeds a certain amount There is practically no compensation for this part of the ladder. sation instead. ` This disadvantage is avoided according to the invention in that the parts of the secondary lines leading out of the immediate area of the furnace vessel are laid parallel to the electrode axes. In the drawing, an electric furnace according to the invention is shown schematically.

Fig. 1 zeigt eine Teilansicht des Ofens mit Sekundärleitung in Seitenansicht, Figa 2 den .gleichen Ofen in Drs.Et.fsicht, Fig. 3 und 4 eine gegenüber Fig. 1 um 900 gedrehte Ansicht bei verschiedenen Elektroden-. stellun@en. Das Ofengefäß 4 wird reit .21ektroden 1 beheizt, denen der Strom über @@N=_uri:_;en 2 zuz,eführt wird. D.--r Vertikale Teil 3 der 5:;@@undG,°a.ei nun; i.hrt aus dem anb.zittelbaren Bereich des Ofens heraus zu czeüile@:iölen Teil 5 der Se'L:undö,rletunö. kn diesen Teil schließt sich der zum '-@"rans'Lorr:;ez`,or 7 führende Leitungsteil ö an. ilie Fig.- 3 zeit, laufen die vertikalen Loiterteile 3 auf der tanzen Lände a (Fit. 1) zueinander und zu den Ele:ktroden- achsen parallel, @,ljobei eine weitgehende KompensL:.tion mö-;lich ist. Aber auch bei verschiedener Höhenstellung der Elektroden 1 (Fig. 4) bleibt die Yoüpensaion ii _,rößten Teil der Länge a jedes Leiterteiles 3 erhalten. Bei einer Höhendifferenz b (Fiö. 4) bleibt nur eine Strecke von der Länge b ohne Kom- pensation, wL.hrend die Kompensation der :Leiter auf der Strecke a - b unverändert erhalten bleibt. Die durch ver- schiedene Höhenstellungen der Elektroden bewirkten hr_derur,gen der Kompensation bleiben daher verhältnismäßig erirj.g. Fig. 1 shows a partial view of the furnace with secondary line in side view, Fig. 2 shows the same furnace in Drs.Et., 3 and 4 show a view rotated by 900 with respect to FIG. 1 for different electrodes. stellun @ en. The furnace vessel 4 is heated .21 electrodes 1, which the Current via @@ N = _uri: _; en 2 zuz, e leads. D .-- r Vertical part 3 of 5:; @@ andG, ° a.ei now; i.hrt from the immediate area of the oven out to czeüile @: iölen Part 5 of Se'L: undö, rletunö. Kn this part is followed by the one leading to the '- @ "rans'Lorr:; ez`, or 7 Line part ö. ilie Fig. 3 time, the vertical loiter parts 3 run up the dance lands a (Fit. 1) to each other and to the electrode axes parallel, @, jobei an extensive compensation: .tion possible is. But also with different height positions of the electrodes 1 (Fig. 4) remains the Yoüpensaion ii _, largest part of the length a of each ladder part 3 received. If there is a difference in altitude b (Fiö. 4) remains only a segment of length b without any com- compensation, while the compensation of the: ladder on the Route a - b remains unchanged. The through Different heights of the electrodes caused hr_derur, gen the compensation therefore remains relatively erirj.g.

Claims (1)

.P a t e n t a n Spar u c h
- Blektro- Lichtbogenofen, dessen Sekundärleitungen zu den regelbaren Elektroden in offener Dreieckschaltung: verlegt sind, dadurch gekennzeichnet, daß die aus dem `unmittelbaren Bereich des Ofengefäßes herausführenden Teile zier Sekundärleitungen Darallel zu den Elektroden-Achsen, geführt sind:
.Patentan Spar uch
- Electro-electric arc furnace, the secondary lines of which to the adjustable electrodes are laid in an open delta connection, characterized in that the parts of decorative secondary lines leading out of the immediate area of the furnace vessel are parallel to the electrode axes:
DE19641565300 1964-05-26 1964-05-26 Electric arc furnace Pending DE1565300A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB0076923 1964-05-26

Publications (1)

Publication Number Publication Date
DE1565300A1 true DE1565300A1 (en) 1970-02-12

Family

ID=6979267

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19641565300 Pending DE1565300A1 (en) 1964-05-26 1964-05-26 Electric arc furnace

Country Status (1)

Country Link
DE (1) DE1565300A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2659821A1 (en) * 1990-03-19 1991-09-20 Clecim Sa ELECTRIC OVEN WITH CONTINUOUS CURRENT.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2659821A1 (en) * 1990-03-19 1991-09-20 Clecim Sa ELECTRIC OVEN WITH CONTINUOUS CURRENT.
WO1991014912A1 (en) * 1990-03-19 1991-10-03 Clecim Direct current electric furnace
US5191592A (en) * 1990-03-19 1993-03-02 Clecim D.c. electric arc furnace with consumable and fixed electrode geometry

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Legal Events

Date Code Title Description
SH Request for examination between 03.10.1968 and 22.04.1971