EP0594272B2 - Elektrodentragarm für Lichtbogenofen - Google Patents
Elektrodentragarm für Lichtbogenofen Download PDFInfo
- Publication number
- EP0594272B2 EP0594272B2 EP93250271A EP93250271A EP0594272B2 EP 0594272 B2 EP0594272 B2 EP 0594272B2 EP 93250271 A EP93250271 A EP 93250271A EP 93250271 A EP93250271 A EP 93250271A EP 0594272 B2 EP0594272 B2 EP 0594272B2
- Authority
- EP
- European Patent Office
- Prior art keywords
- supporting arm
- electrode
- electrode supporting
- channels
- walls
- 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 - Lifetime
Links
- 238000010891 electric arc Methods 0.000 title description 4
- 239000002826 coolant Substances 0.000 claims abstract description 21
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 2
- 239000000498 cooling water Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Images
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
- H05B7/101—Mountings, supports or terminals at head of electrode, i.e. at the end remote from the arc
-
- 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
Definitions
- the invention relates to an electrode support arm for Electric arc furnaces for attaching an electrode support device in his front part, with at least one partially made of high conductivity conductive material formed wall designed as a hollow profile is.
- Electrodes for electric arc furnaces for steel production are usually on by means of electrode terminals Supporting arms attached, in turn, to vertically movable Support pillars are held.
- the power supply happens either guided in above the support arm Electricity pipes or over the support arms themselves.
- the electricity is generated by support arms made of steel with externally plated copper or aluminum guided.
- the arm can also be complete consist of a good leading the current material.
- EP 0 340 725 is a made of light metal Support arm known through its cavity Coolant flows.
- Coolant flows For the cooling water supply of the tension bracket pipes are provided, the connected to the clamp with hoses are.
- the invention has therefore set itself the goal, the avoid mentioned disadvantages and a structural simple, low-weight and structurally stiff Support arm to create, with the low maintenance high electrical Services are transferable.
- the thickness of the wall is chosen so that the Hollow profile trained support arm is sufficiently rigid and at the same time the entire wall is free of danger is cooled.
- the hollow profile can be a circular, a oval or a box-like shape.
- Prefers becomes the box-like shape, with the wall from two equal-sized L-profiles or four at the Corners welded together flat profiles.
- the support arm according to the invention is significantly lighter as previously known support arms comparable Sizes. This is due to the one by the use of Channeled wall, so that at comparatively Strengthen the weight of the arm less is. On the other hand, there is less overall Water is used because significantly less water targeted through the channels by the as closed Coolant circuit designed support arm out becomes.
- the support arm according to the invention has an outer simple form, with no components to the outside protrude and thus exposed to possible damage are.
- the simple shape allows easy attachment the electrode support device in the front part of the Support arm. This ensures a simple change.
- FIG. 1 shows an electric arc furnace (10), with a furnace vessel (11), with a lid (12) is closed. In the furnace vessel (11) is located Melt (13) and slag (14).
- Electrode carrying device (20) Through the lid (12) protrude electrodes (21-23) in the furnace vessel (11) into it, on an electrode arm (24) or on individual electrode arms (25-27) one Electrode carrying device (20) are attached.
- the middle electrode support arm When using three electrode support arms (25-27) the middle electrode support arm has a bend (28), with horizontal electrode support parts (29) is intimately connected.
- the length of the middle electrode support arm (25) is labeled “L”.
- This length "L” has a kink length "l” in the middle area on, with this part of the electrode support arm in a Abknickwinkel ( ⁇ ) to the horizontal electrode support member (29) is arranged.
- FIG. 2 shows hollow profiles (30) of the electrode support arm with components (31). These components (31) are extruded and have longitudinal channels (36) designed in number and size are that sufficient cooling without reduction the strength of the support arm is reached.
- the hollow profile of mind two extruded components by welding together. These components can do this as oval profile (34) ⁇ Figure 2.3> or as L-profile (33) ⁇ Figure 2.2> be configured. But you can also, like shown in Figure 2.1, from identical flat profiles (32) joined at 4 seams be welded together.
- FIG. 3 shows individual flow filaments of the coolant a coolant control system (40) shown.
- the individual channels (36) form the coolant thread (46), which flows through most of the support arm.
- the electrode holder (27) has the coolant threads (47 and 48), that of the coolant filaments (49). Leave through the multitude of channels represent a variety of coolant ducts.
- a splash ring (41) is shown, from which the water can flow freely, the via the coolant thread (42) is supplied to it.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Discharge Heating (AREA)
- Furnace Details (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4236158A DE4236158C1 (de) | 1992-10-20 | 1992-10-20 | Elektrodentragarm für Lichtbogenöfen |
DE4236158 | 1992-10-20 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0594272A1 EP0594272A1 (de) | 1994-04-27 |
EP0594272B1 EP0594272B1 (de) | 1997-09-03 |
EP0594272B2 true EP0594272B2 (de) | 2005-06-22 |
Family
ID=6471405
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93250271A Expired - Lifetime EP0594272B2 (de) | 1992-10-20 | 1993-10-06 | Elektrodentragarm für Lichtbogenofen |
Country Status (10)
Country | Link |
---|---|
US (1) | US5471496A (ko) |
EP (1) | EP0594272B2 (ko) |
JP (1) | JP3300720B2 (ko) |
KR (1) | KR100259014B1 (ko) |
AT (1) | ATE157839T1 (ko) |
BR (1) | BR9301181A (ko) |
DE (2) | DE4236158C1 (ko) |
ES (1) | ES2106269T3 (ko) |
GB (1) | GB2271836B (ko) |
SG (1) | SG52327A1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006027648A1 (de) * | 2006-06-13 | 2007-12-20 | Arndt Dung | Wandungselemente für einen wassergekühlten, stromführenden Elektrodentragarm und aus solchen Wandungselementen bestehende Elektrodentragarme |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2324595B (en) * | 1997-04-22 | 1999-03-10 | Howard Ind Pipework Services L | Economiser for electric arc furnace |
US6377604B1 (en) * | 2000-11-09 | 2002-04-23 | Dixie Arc, Inc. | Current-conducting arm for an electric arc furnace |
EP1901585B1 (de) * | 2006-09-18 | 2012-08-29 | Homa Gesellschaft f. Hochstrom- Magnetschalter v. Vollenbroich GmbH & Co. KG | Elektrodenarm für Lichtbogenöfen |
US20090044568A1 (en) * | 2007-08-15 | 2009-02-19 | Albert Lewis | Submerged fired vertical furnance |
JP4533986B2 (ja) * | 2008-09-17 | 2010-09-01 | 有限会社 ベイテック | 電極支持アームにおける冷却構造 |
DE102009034407A1 (de) | 2009-07-23 | 2011-02-03 | Fuchs Technology Holding Ag | Elektrodentragarm mit lokal befestigtem Stromleiter |
CN101873733B (zh) * | 2010-02-05 | 2011-12-07 | 姚会元 | 矿热炉用导电铜颚板 |
DE102010052086A1 (de) | 2010-03-10 | 2011-09-15 | Sms Siemag Ag | Elektrodentragarmsystem |
US10570045B2 (en) | 2015-05-22 | 2020-02-25 | John Hart Miller | Glass and other material melting systems |
DE102016206028A1 (de) | 2016-04-12 | 2017-10-12 | Sms Group Gmbh | Tragarm zum Tragen einer Elektrode eines Lichtbogenofens und Verfahren zum Herstellen eines solchen |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB631530A (en) * | 1946-01-31 | 1949-11-04 | Delaware Engineering Corp | Electric arc furnace with lift and swing aside roof |
FR1336823A (fr) * | 1962-07-25 | 1963-09-06 | Aluminum Francais L | Bras en alliage léger pour four électrique |
US3602624A (en) * | 1970-03-11 | 1971-08-31 | Dixie Bronze Co | Unitized electrode holder for electric furnace electrodes or the like |
US3686421A (en) * | 1971-08-30 | 1972-08-22 | Edgar Wunsche | Unitized electride holder and arm for electric arc furnace electrodes or the like |
US4122295A (en) * | 1976-01-17 | 1978-10-24 | Ishikawajima-Harima Jukogyo Kabushiki Kaisha | Furnace wall structure capable of tolerating high heat load for use in electric arc furnace |
US4110548A (en) * | 1976-12-29 | 1978-08-29 | Bethlehem Steel Corporation | Water-cooled electrode holder |
US4306726A (en) * | 1980-04-22 | 1981-12-22 | Qit-Fer Et Titane Inc. | Furnace electrode seal assembly |
US4342878A (en) * | 1980-05-09 | 1982-08-03 | Wilson Welding Company, Inc. | Water-cooled electrode holder |
DE3265147D1 (en) * | 1981-03-24 | 1985-09-12 | Krupp Gmbh | High-current conductor system for electric furnaces |
FR2517502A1 (fr) * | 1981-12-01 | 1983-06-03 | Clesid Sa | Dispositif d'alimentation et de support d'electrodes pour four a arcs |
EP0167485A1 (en) * | 1984-06-25 | 1986-01-08 | Arc Technologies Systems, Ltd. | Assembly for the automatic cooling water connection to water cooled combination electrodes for electric arc furnaces |
US4682341A (en) * | 1984-11-29 | 1987-07-21 | Fuchs Systemtechnik Gmbh | Electric arc furnace |
DE3522559C1 (de) * | 1985-06-24 | 1987-01-22 | Fuchs Systemtechnik Gmbh | Lichtbogenofen |
DE8805807U1 (de) * | 1988-05-02 | 1989-08-31 | Badische Stahl-Engineering GmbH, 7640 Kehl | Tragarm für eine Elektrode eines Lichtbogenofens |
US5283803A (en) * | 1992-06-01 | 1994-02-01 | Glass Incorporated International | Electrode assembly for glass melting furnace |
-
1992
- 1992-10-20 DE DE4236158A patent/DE4236158C1/de not_active Expired - Lifetime
-
1993
- 1993-02-10 SG SG1996002848A patent/SG52327A1/en unknown
- 1993-02-10 GB GB9302625A patent/GB2271836B/en not_active Expired - Fee Related
- 1993-03-15 BR BR9301181A patent/BR9301181A/pt not_active IP Right Cessation
- 1993-10-06 DE DE59307254T patent/DE59307254D1/de not_active Expired - Lifetime
- 1993-10-06 ES ES93250271T patent/ES2106269T3/es not_active Expired - Lifetime
- 1993-10-06 EP EP93250271A patent/EP0594272B2/de not_active Expired - Lifetime
- 1993-10-06 AT AT93250271T patent/ATE157839T1/de not_active IP Right Cessation
- 1993-10-15 US US08/138,233 patent/US5471496A/en not_active Expired - Fee Related
- 1993-10-19 JP JP28434593A patent/JP3300720B2/ja not_active Expired - Fee Related
- 1993-10-20 KR KR1019930021834A patent/KR100259014B1/ko not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006027648A1 (de) * | 2006-06-13 | 2007-12-20 | Arndt Dung | Wandungselemente für einen wassergekühlten, stromführenden Elektrodentragarm und aus solchen Wandungselementen bestehende Elektrodentragarme |
Also Published As
Publication number | Publication date |
---|---|
KR100259014B1 (ko) | 2000-06-15 |
GB2271836B (en) | 1996-03-27 |
EP0594272A1 (de) | 1994-04-27 |
GB9302625D0 (en) | 1993-03-24 |
US5471496A (en) | 1995-11-28 |
SG52327A1 (en) | 1998-09-28 |
DE4236158C1 (de) | 1994-03-17 |
JPH06223963A (ja) | 1994-08-12 |
GB2271836A (en) | 1994-04-27 |
KR940010857A (ko) | 1994-05-26 |
EP0594272B1 (de) | 1997-09-03 |
DE59307254D1 (de) | 1997-10-09 |
BR9301181A (pt) | 1994-11-01 |
ES2106269T3 (es) | 1997-11-01 |
JP3300720B2 (ja) | 2002-07-08 |
ATE157839T1 (de) | 1997-09-15 |
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