EP0437037A3 - Method and apparatus for closing the gap between an electrode and its furnace cover in an electric furnace - Google Patents

Method and apparatus for closing the gap between an electrode and its furnace cover in an electric furnace Download PDF

Info

Publication number: EP0437037A3
Authority: EP; European Patent Office
Prior art keywords: furnace; closing; electrode; gap; electric furnace
Prior art date: 1989-12-11
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

Application number

EP19900313013

Other versions

EP0437037B1 (en

EP0437037A2 (en

Inventor

Heinrich Comes

Josef Wolf

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.)

Foseco International Ltd

Original Assignee

Foseco International Ltd

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.)

1989-12-11

Filing date

1990-11-29

Publication date

1991-08-07

1990-11-29 Application filed by Foseco International Ltd filed Critical Foseco International Ltd

1991-07-17 Publication of EP0437037A2 publication Critical patent/EP0437037A2/en

1991-08-07 Publication of EP0437037A3 publication Critical patent/EP0437037A3/en

1994-03-09 Application granted granted Critical

1994-03-09 Publication of EP0437037B1 publication Critical patent/EP0437037B1/en

2010-11-29 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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
- H05B7/12—Arrangements for cooling, sealing or protecting electrodes

Landscapes

Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Plasma & Fusion (AREA)
Discharge Heating (AREA)
Furnace Details (AREA)
Carbon And Carbon Compounds (AREA)

EP90313013A 1989-12-11 1990-11-29 Method and apparatus for closing the gap between an electrode and its furnace cover in an electric furnace Expired - Lifetime EP0437037B1 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE3940848		1989-12-11
DE3940848A DE3940848A1 (en)	1989-12-11	1989-12-11	METHOD AND DEVICE FOR CLOSING THE GAP BETWEEN ELECTRODE AND OVEN COVER OF AN ELECTRIC MELTING FURNACE

Publications (3)

Publication Number	Publication Date
EP0437037A2 EP0437037A2 (en)	1991-07-17
EP0437037A3 true EP0437037A3 (en)	1991-08-07
EP0437037B1 EP0437037B1 (en)	1994-03-09

Family

ID=6395218

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP90313013A Expired - Lifetime EP0437037B1 (en)	1989-12-11	1990-11-29	Method and apparatus for closing the gap between an electrode and its furnace cover in an electric furnace

Country Status (2)

Country	Link
EP (1)	EP0437037B1 (en)
DE (2)	DE3940848A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2676799A1 (en) *	1991-05-22	1992-11-27	Siderurgie Fse Inst Rech	PARTIAL SEALING DEVICE BETWEEN THE INTERIOR AND EXTERIOR OF AN ARC FURNACE.
DE19608530C2 (en) *	1996-02-09	1999-01-14	Eisenbau Essen Gmbh	Use of pure CO¶2¶ gas or a gas essentially containing CO¶2¶ as a carrier gas in the treatment of steel in an electric arc furnace
IT1291117B1 (en) *	1997-03-25	1998-12-29	Acciai Speciali Terni Spa	DEVICE FOR THE PROTECTION OF GRAPHITE ELECTRODES IN METALLURGIC ELECTRIC OVENS
FI123373B (en) *	2008-06-06	2013-03-15	Outotec Oyj	sealing device
CN101839626A (en) *	2010-05-31	2010-09-22	莱芜钢铁集团有限公司	Small cover on center of arc furnace
DE102013222159A1 (en) *	2013-10-31	2015-04-30	Siemens Aktiengesellschaft	Method of operating an electric arc furnace and electric arc furnace
DE102013222158A1 (en) *	2013-10-31	2015-05-13	Siemens Aktiengesellschaft	Method of operating an electric arc furnace and electric arc furnace

Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR466265A (en) *	1912-12-18	1914-05-08	Rombacher Huttenwerke	Method and devices for protecting electrodes in electric arc furnaces
DE1167992B (en) *	1960-06-02	1964-04-16	Bbc Brown Boveri & Cie	Electrode sealing for electric arc and reduction furnaces
US3697660A (en) *	1970-03-16	1972-10-10	Jury Fedorovich Frolov	Device for sealing gap between electrode and lining of electric arc furnace
GB2114408A (en) *	1981-11-20	1983-08-17	Coated Electrodes Ltd	Apparatus for sealing electrodes in electric arc furnaces
EP0309583A1 (en) *	1987-03-17	1989-04-05	Nippon Carbon Co., Ltd.	Method of melting and refining metals, and an apparatus for cooling electrodes used therefor

1989
- 1989-12-11 DE DE3940848A patent/DE3940848A1/en not_active Withdrawn
1990
- 1990-11-29 EP EP90313013A patent/EP0437037B1/en not_active Expired - Lifetime
- 1990-11-29 DE DE69007272T patent/DE69007272T2/en not_active Expired - Fee Related

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR466265A (en) *	1912-12-18	1914-05-08	Rombacher Huttenwerke	Method and devices for protecting electrodes in electric arc furnaces
DE1167992B (en) *	1960-06-02	1964-04-16	Bbc Brown Boveri & Cie	Electrode sealing for electric arc and reduction furnaces
US3697660A (en) *	1970-03-16	1972-10-10	Jury Fedorovich Frolov	Device for sealing gap between electrode and lining of electric arc furnace
GB2114408A (en) *	1981-11-20	1983-08-17	Coated Electrodes Ltd	Apparatus for sealing electrodes in electric arc furnaces
EP0309583A1 (en) *	1987-03-17	1989-04-05	Nippon Carbon Co., Ltd.	Method of melting and refining metals, and an apparatus for cooling electrodes used therefor

Also Published As

Publication number	Publication date
DE69007272D1 (en)	1994-04-14
EP0437037B1 (en)	1994-03-09
DE69007272T2 (en)	1994-06-30
DE3940848A1 (en)	1991-06-13
EP0437037A2 (en)	1991-07-17

Publication	Publication Date	Title
GB2231197B (en)	1994-03-30	Electrode assembly and apparatus
GB2227847B (en)	1993-09-22	Apparatus and method for monitoring power
EP0162683A3 (en)	1987-12-09	A method for observing an object in a small gap and an apparatus for the same
EP0427412A3 (en)	1992-03-25	Current measuring method and apparatus therefor
EP0685745A3 (en)	1997-05-07	Apparatus for measuring the amount of electric charge induced in conductive part and method of measuring electric charge.
EP0495985A4 (en)	1993-01-27	Method and apparatus for electrical discharge machining
EP0557574A3 (en)	1996-05-29	Method for safety non-arcing electric connection and the device using the same
GB2173380B (en)	1988-12-21	Electric arc melting apparatus and associated method
EP0446724A3 (en)	1992-07-29	Current limiting method and apparatus
GB2235334B (en)	1993-06-02	Method and apparatus for maintaining electrically operating device temperatures
GB2270984B (en)	1995-10-11	Electrical test arrangement and apparatus
EP0437037A3 (en)	1991-08-07	Method and apparatus for closing the gap between an electrode and its furnace cover in an electric furnace
EP0646849A3 (en)	1995-07-26	Method and apparatus for charging electrically.
GB2215442B (en)	1991-12-11	Method and apparatus for closing furnace tapholes
JPS5688635A (en)	1981-07-18	Method and device for forming electric connection
GB2238145B (en)	1993-12-08	Method and apparatus for current window cache
AU5988890A (en)	1991-05-30	Method and apparatus for smelting iron oxide
EP0424586A3 (en)	1992-04-08	Method and apparatus for electrochemical immunoassay
ZA906551B (en)	1991-07-31	Method for the assembly of lead-acid batteries and associated apparatus
JPS57173769A (en)	1982-10-26	Testing or treating apparatus for electromechanical and electrical member
GB2054649B (en)	1983-06-22	Method and apparatus for electric refining
GB2238751B (en)	1993-09-01	Method and apparatus for use in making an opening
GB2171822B (en)	1988-02-24	Method and apparatus for controlling an electric discharge machine
EP0442119A3 (en)	1992-02-19	Method and apparatus for treating the dielectric used in electrical discharge machining
ZA833724B (en)	1984-02-29	Method and apparatus for determining electrode displacement in an electric arc furnace

Legal Events

Date	Code	Title	Description
1991-05-31	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1991-06-19	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1991-07-17	AK	Designated contracting states	Kind code of ref document: A2 Designated state(s): DE FR GB IT SE
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1991-09-11	17P	Request for examination filed	Effective date: 19910711
1993-05-19	17Q	First examination report despatched	Effective date: 19930406
1994-01-21	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1994-03-09	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): DE FR GB IT SE
1994-03-30	ITF	It: translation for a ep patent filed
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1994-07-13	ET	Fr: translation filed
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1995-01-12	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
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