EP1090261A1 - Kippbarer lichtbogenofen - Google Patents
Kippbarer lichtbogenofenInfo
- Publication number
- EP1090261A1 EP1090261A1 EP99926365A EP99926365A EP1090261A1 EP 1090261 A1 EP1090261 A1 EP 1090261A1 EP 99926365 A EP99926365 A EP 99926365A EP 99926365 A EP99926365 A EP 99926365A EP 1090261 A1 EP1090261 A1 EP 1090261A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- platform
- vessel
- portal
- arc furnace
- furnace
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
- F27B3/06—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces with movable working chambers or hearths, e.g. tiltable, oscillating or describing a composed movement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
- F27B3/08—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces heated electrically, with or without any other source of heat
- F27B3/085—Arc furnaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
- F27B3/06—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces with movable working chambers or hearths, e.g. tiltable, oscillating or describing a composed movement
- F27B3/065—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces with movable working chambers or hearths, e.g. tiltable, oscillating or describing a composed movement tiltable
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
- F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
-
- 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
Definitions
- the invention relates to a tiltable arc furnace, in which a furnace vessel and a portal for an electrode lifting and swiveling device are arranged on a platform of a furnace cradle which can be tilted by means of a tilting device and which contains three parallel weighing runners which are arranged at a distance from one another and each run on a runway, the
- the furnace vessel is arranged on a first platform part (vessel platform part) lying between two cradle skids and the portal is arranged on a separate second platform part (portal platform part) lying outside these cradle skids, which can be tilted synchronously with the vessel platform part carrying the furnace vessel by the tilting device.
- the furnace platform also carries the portal with the electrode guide columns, the lid lifting mechanism and the associated swivel and drive mechanisms.
- the entire furnace is by means of a tilting device, e.g. B. cylinder over a cradle, tiltable ..
- the cradle skids are guided on a runway.
- the furnace usually has two cradle runners and therefore two runways that are parallel to the tipping direction on stable foundations.
- the geometry of the cradle and runway determines the tilting movement of the furnace vessel.
- the main runway located between the vessel and the portal has to carry approx. 60% to 70% of the total vertical load due to the overhanging portal part.
- FR-855 303 A has made known a tiltable arc furnace in which the overhanging part of the platform that supports the portal on the outside by a third weighing sector is supported, so that the continuous weighing platform is supported on three parallel weighing sectors. This leads to a statically indefinite load transfer.
- a tiltable arc furnace has become known in which the electrode portal is arranged on a cradle separate from the furnace cradle.
- which can either be coupled to the furnace cradle by a first bolt - this is intended for the small tilting movements when slagging - or by a second bolt.
- the last-mentioned possibility is provided in order to prevent the electrodes from having to be tilted when tapping when the furnace vessel is strongly tilted, which leads to electrode breaks. For tapping, the electrodes are therefore pulled out of the vessel beforehand and the separate cradle is fixed to the fixed bearing by means of the second bolt.
- a tiltable arc furnace of the type mentioned in the introduction designed that the two platform parts are connected to one another by at least one hinge joint, the axis of rotation of which runs parallel to the line of intersection between a platform plane and the plane in which a cradle skid lies.
- the solution according to the invention can be implemented in existing furnaces, for example if the portal has to be renewed. The downtimes can then be significantly reduced. It is also possible without problems to first convert the platform with the portal and later, at different times, the platform with the furnace vessel. If the solution according to the invention is implemented in the case of a new installation, the subsequent replacement of the portal and / or vessel is considerably easier.
- An additional tilting device can be attached to the portal platform, which works synchronously with the main tilting device.
- Figure 1 shows a tiltable arc furnace in a plan view.
- Figure 2 shows the arc furnace in a front view, partially sectioned.
- Figure 3 shows the connection of the platform parts in a perspective view.
- Fig. 5 in a front view an enlarged section, partly in section, the connection between the two platform parts by a hinge joint
- Fig. 6 is a plan view of an enlarged section of the stop and the guide between the two platform parts.
- 1 denotes the vessel platform part on which the furnace vessel 2 is arranged, and 3 the portal platform part on which the portal 4 is arranged.
- the axis of rotation 5 of the portal 4 is arranged eccentrically to the electrode support arms 6 which carry the electrodes 7.
- 8 shows a separate pin for lifting and swiveling out the vessel lid 9.
- 10 is the work door and 11 is an eccentric floor cut.
- the platform parts 1 and 3 are separated by a joint 12 and connected by hinge joints 13.
- 14 is a stop.
- the bearing 15 for the portal is additionally recognizable, as are the two cradle runners 16 with the associated runways 17 for the vessel platform part 1, which are fastened on foundations 18.
- the portal platform part 3 is supported on one of the cradle skids 16 and a further cradle skid 20 with a runway 21.
- the runway 21 stands on a foundation 22.
- Flexible cables for the power supply are designated by 23.
- FIG 3 shows the design and arrangement of the hinge joints 13 and the position of the stop 14.
- the axis of rotation 19 of the hinge joints 13 runs parallel to the line of intersection between a platform level, that is to say, for example, the level formed by the top of the vascular platform 1 and the level in which a cradle skid 16 or 20 lies.
- a platform level that is to say, for example, the level formed by the top of the vascular platform 1 and the level in which a cradle skid 16 or 20 lies.
- the axis of rotation 19 thus runs parallel to these runways when the platform is in the horizontal position.
- hinge joints 13 adjacent to the lower edges 24 and 25 of the mutually facing edge sides 26 and 27 of the platform parts 1 and 3 respectively are arranged.
- the hinge joints 13 are formed by interlocking tab-shaped projections 30 and 31 provided with eyelets 28 and 29, respectively, which are attached to the mutually facing edge sides 26 and 27 of the platform parts 1 and 3 and are rotatably connected to one another by means of pivot bolts 32.
- the stop 14 is, as shown in FIGS. 5 and 6, formed by opposing stop pieces 35 and 36, the stop surfaces of which in furnace operation, i. H. if the vessel lid 9 rests on the furnace vessel 2, have a distance of 1 to 2 mm. This gap ensures a statically defined load distribution over the three foundations via the three weighing runners 16 and 20.
- the stop 14 is provided in order to limit the deflection caused by the load being shifted onto the portal platform part 3 when the vessel lid 9 is raised. It is located adjacent to the upper edges 37 and 38 of the mutually facing edge sides 26 and 27 of the platform parts 1 and 3 approximately in the central region of the edge sides 26 and 27.
- the entire platform can be tilted by means of a tilting device, not shown in the drawings, which engages the vessel portal part 1.
- the rotating bolts 32 of the hinge joints 13 must transmit the forces required to tilt the portal platform part 3.
- the hinge joints 13 are therefore designed such that the tab-shaped projections 31 engage in tab-shaped projections 30 arranged in pairs.
- a corresponding play in the axial direction of the pivot pins 32 must be taken into account.
- only one of the two hinge joints is designed as a so-called fixed bearing, ie as a bearing in which the displaceability in the axial direction of the pivot pin 32 is prevented, while the other hinge joint is designed as a plain bearing. in which the movement in the axial direction of the pivot pin 32 is not limited.
- the relative position of the two platform parts in the axial direction of the pivot pins 32 is determined by side stops 39 and 40, between which the stop piece 36 engages. Since the guidance caused by the side stops 39 and 40 and the stop piece 36 is located between the platform parts 1 and 3 in the middle between the platform parts, different length changes have a minimal effect here with different thermal loads on the two platform parts. The lead can thus be adjusted with a very small play of a few tenths of a millimeter. Adjustment plates 41 serve to set this play, as well as the distance between the stop pieces 35 and 36.
- only one tilting device is provided in the area of the vascular platform 1, so that the portal platform 3 must be tilted along via the hinge joints 13 and the guide through the side stops 39 and 40. It is also possible to provide a further auxiliary tilting device which engages the portal platform part 3. In this case, synchronous actuation of the two tilting devices must be ensured.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Discharge Heating (AREA)
- Furnace Details (AREA)
- Special Wing (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19823226A DE19823226A1 (de) | 1998-05-25 | 1998-05-25 | Kippbarer Lichtbogenofen |
DE19823226 | 1998-05-25 | ||
PCT/EP1999/003523 WO1999061857A1 (de) | 1998-05-25 | 1999-05-21 | Kippbarer lichtbogenofen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1090261A1 true EP1090261A1 (de) | 2001-04-11 |
EP1090261B1 EP1090261B1 (de) | 2002-08-14 |
Family
ID=7868792
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99926365A Expired - Lifetime EP1090261B1 (de) | 1998-05-25 | 1999-05-21 | Kippbarer lichtbogenofen |
Country Status (15)
Country | Link |
---|---|
US (1) | US6393043B1 (de) |
EP (1) | EP1090261B1 (de) |
KR (1) | KR20010071303A (de) |
CN (1) | CN1229614C (de) |
AT (1) | ATE222346T1 (de) |
AU (1) | AU4365999A (de) |
BR (1) | BR9910694A (de) |
CA (1) | CA2332951C (de) |
DE (2) | DE19823226A1 (de) |
ES (1) | ES2182532T3 (de) |
HK (1) | HK1038786A1 (de) |
PL (1) | PL186668B1 (de) |
RU (1) | RU2206031C2 (de) |
TR (1) | TR200003477T2 (de) |
WO (1) | WO1999061857A1 (de) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101010492B1 (ko) * | 2002-04-18 | 2011-01-21 | 어플라이드 머티어리얼스, 인코포레이티드 | 전자기 방사선의 스캐닝에 의한 열 플럭스 프로세싱 |
US7005601B2 (en) * | 2002-04-18 | 2006-02-28 | Applied Materials, Inc. | Thermal flux processing by scanning |
US6987240B2 (en) * | 2002-04-18 | 2006-01-17 | Applied Materials, Inc. | Thermal flux processing by scanning |
EP1391523B1 (de) * | 2002-08-20 | 2006-05-24 | SMS Demag Aktiengesellschaft | Doppelofenanlage für die Erzeugung von Stahlwerkstoffen |
DE10355549A1 (de) * | 2003-11-27 | 2005-06-23 | Intracon Gmbh | Chargiergutvorwärmer |
DE102008012280A1 (de) * | 2008-03-03 | 2009-09-10 | Fuchs Technology Ag | Lichtbogenofen |
DE102008028966A1 (de) * | 2008-06-18 | 2009-12-24 | Fuchs Technology Holding Ag | Drehportal für einen Ofen |
ES2633466T3 (es) * | 2009-03-31 | 2017-09-21 | Sms Group S.P.A. | Horno de arco eléctrico |
JP5784599B2 (ja) * | 2010-06-11 | 2015-09-24 | 大亜真空株式会社 | アーク溶解炉装置 |
CN103733010B (zh) * | 2011-08-15 | 2015-11-25 | 康萨克公司 | 电感应熔融组件 |
DE102011083822B3 (de) * | 2011-09-30 | 2012-12-06 | Siemens Aktiengesellschaft | Lichtbogenofen mit auf Schienen verfahrbarem Wiegerahmen |
DE102012001907A1 (de) | 2012-02-02 | 2013-08-08 | Badische Stahl-Engineering Gmbh | Kombiniertes Hub- und Schwenkwerk |
US9018108B2 (en) | 2013-01-25 | 2015-04-28 | Applied Materials, Inc. | Low shrinkage dielectric films |
US10234206B2 (en) | 2014-11-05 | 2019-03-19 | Daido Steel Co., Ltd. | Electric arc furnace |
MY190096A (en) | 2014-11-05 | 2022-03-28 | Daido Steel Co Ltd | Method of operating electric arc furnace |
CN105300095B (zh) * | 2015-11-19 | 2017-11-24 | 中冶赛迪工程技术股份有限公司 | 滚轮装置及电弧炉滚轮式倾动轨道 |
CN106524747A (zh) * | 2016-11-10 | 2017-03-22 | 黑河正兴磨料有限公司 | 封闭式固定极心圆碳化硼冶炼电弧炉 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE729569C (de) * | 1938-02-11 | 1943-01-07 | Krupp Ag | Lichtbogenofen |
FR855303A (fr) * | 1939-01-23 | 1940-05-08 | Cem Comp Electro Mec | Dispositif pour l'ouverture rapide des fours électriques à arc |
US2886617A (en) * | 1957-02-04 | 1959-05-12 | Demag Elektrometallurgie Gmbh | Tiltable arc furnace |
DE1108830B (de) * | 1957-02-04 | 1961-06-15 | Demag Elektrometallurgie Gmbh | Kippbarer Lichtbogen-Schmelzofen |
DE3165093D1 (en) * | 1980-10-09 | 1984-08-30 | Bbc Brown Boveri & Cie | Tiltable electric-arc furnace |
DE3241987C2 (de) * | 1982-11-10 | 1986-12-11 | Mannesmann Ag, 4000 Duesseldorf | Kippbarer Lichtbogenofen |
DE3308486C2 (de) | 1983-03-10 | 1985-04-04 | Mannesmann AG, 4000 Düsseldorf | Auf kippbarem Rahmen verfahrbarer Lichtbogenofen |
DE3906653A1 (de) * | 1989-03-02 | 1990-09-06 | Fuchs Technology Ag | Einschmelzaggregat mit schachtfoermigem chargiergutvorwaermer |
AU621207B2 (en) | 1989-03-02 | 1992-03-05 | Arcmet Technologie Gmbh | Melting aggregate with shaft for preheating charged materials |
DE3907129A1 (de) * | 1989-03-06 | 1990-09-13 | Fuchs Technology Ag | Lichtbogenofen |
DE4138120A1 (de) | 1991-11-19 | 1993-05-27 | Fuchs Technology Ag | Einschmelzaggregat mit ofenwiege |
DE4406260A1 (de) * | 1994-02-25 | 1995-08-31 | Fuchs Technology Ag | Verfahren zum Betrieb eines Einschmelzaggregates mit zwei nebeneinander angeordneten Öfen und Einschmelzaggregat |
-
1998
- 1998-05-25 DE DE19823226A patent/DE19823226A1/de not_active Withdrawn
-
1999
- 1999-05-21 BR BR9910694-9A patent/BR9910694A/pt not_active IP Right Cessation
- 1999-05-21 CN CNB998065560A patent/CN1229614C/zh not_active Expired - Fee Related
- 1999-05-21 US US09/700,676 patent/US6393043B1/en not_active Expired - Fee Related
- 1999-05-21 PL PL99344340A patent/PL186668B1/pl not_active IP Right Cessation
- 1999-05-21 KR KR1020007013057A patent/KR20010071303A/ko not_active Application Discontinuation
- 1999-05-21 AU AU43659/99A patent/AU4365999A/en not_active Abandoned
- 1999-05-21 ES ES99926365T patent/ES2182532T3/es not_active Expired - Lifetime
- 1999-05-21 TR TR2000/03477T patent/TR200003477T2/xx unknown
- 1999-05-21 EP EP99926365A patent/EP1090261B1/de not_active Expired - Lifetime
- 1999-05-21 CA CA002332951A patent/CA2332951C/en not_active Expired - Fee Related
- 1999-05-21 DE DE59902359T patent/DE59902359D1/de not_active Expired - Fee Related
- 1999-05-21 AT AT99926365T patent/ATE222346T1/de not_active IP Right Cessation
- 1999-05-21 RU RU2000133220/02A patent/RU2206031C2/ru active
- 1999-05-21 WO PCT/EP1999/003523 patent/WO1999061857A1/de not_active Application Discontinuation
-
2001
- 2001-12-28 HK HK01109166A patent/HK1038786A1/xx not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO9961857A1 * |
Also Published As
Publication number | Publication date |
---|---|
AU4365999A (en) | 1999-12-13 |
EP1090261B1 (de) | 2002-08-14 |
TR200003477T2 (tr) | 2001-03-21 |
CN1302370A (zh) | 2001-07-04 |
PL186668B1 (pl) | 2004-02-27 |
WO1999061857A1 (de) | 1999-12-02 |
PL344340A1 (en) | 2001-11-05 |
CA2332951A1 (en) | 1999-12-02 |
RU2206031C2 (ru) | 2003-06-10 |
CN1229614C (zh) | 2005-11-30 |
ATE222346T1 (de) | 2002-08-15 |
KR20010071303A (ko) | 2001-07-28 |
DE59902359D1 (de) | 2002-09-19 |
ES2182532T3 (es) | 2003-03-01 |
BR9910694A (pt) | 2001-01-30 |
CA2332951C (en) | 2005-03-15 |
HK1038786A1 (en) | 2002-03-28 |
DE19823226A1 (de) | 1999-12-02 |
US6393043B1 (en) | 2002-05-21 |
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