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EP1876866A3 - Arc furnace pressure ring assembly - Google Patents

Arc furnace pressure ring assembly Download PDF

Info

Publication number
EP1876866A3
EP1876866A3 EP07017854.6A EP07017854A EP1876866A3 EP 1876866 A3 EP1876866 A3 EP 1876866A3 EP 07017854 A EP07017854 A EP 07017854A EP 1876866 A3 EP1876866 A3 EP 1876866A3
Authority
EP
European Patent Office
Prior art keywords
pressure ring
ring assembly
contact shoe
arc furnace
assembly
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
Application number
EP07017854.6A
Other languages
German (de)
French (fr)
Other versions
EP1876866A2 (en
EP1876866B1 (en
Inventor
Jacques Venter
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.)
Metix Pty Ltd
Original Assignee
Metix Pty 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.)
Filing date
Publication date
Application filed by Metix Pty Ltd filed Critical Metix Pty Ltd
Publication of EP1876866A2 publication Critical patent/EP1876866A2/en
Publication of EP1876866A3 publication Critical patent/EP1876866A3/en
Application granted granted Critical
Publication of EP1876866B1 publication Critical patent/EP1876866B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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; Electric arc furnaces ; Tank furnaces
    • F27B3/08—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; 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; Electric arc furnaces ; Tank furnaces
    • F27B3/10—Details, accessories or equipment, e.g. dust-collectors, specially adapted for 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
    • F27D11/10—Disposition of electrodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Sealing Devices (AREA)
  • Furnace Details (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)

Abstract

The invention provides for a pressure ring assembly [10] suitable for use in an electric arc furnace, wherein the pressure ring assembly [10] comprises at least two pressure ring segments [22] engaging each other, at least one contact shoe [50] arranged between the pressure ring [20] and an electrode, and a piston arrangement [40] between the pressure ring segment [22] and the contact shoe [50] for forcing the contact shoe [50] into electrical contact with the electrode. The pressure ring assembly [10] is characterised therein that it is made of a metal alloy wherein a first metal of the alloy is copper, and a second metal is selected from a group comprising of chrome and silver. The pressure ring assembly [10] is further characterised therein that each pressure ring segment [22] includes two tapered engagement formations [27] defined within the pressure ring segment [22] and being adapted to be engaged by complimentarily tapered connecting means [60] such that the pressure ring segments [22] are drawn towards each other during installation of the pressure ring assembly. The pressure ring assembly [10] further provides for a sealing arrangement between the pressure ring and the contact shoe [50].
EP07017854.6A 2004-01-19 2005-01-19 Arc furnace pressure ring assembly Expired - Lifetime EP1876866B1 (en)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
ZA200400360 2004-01-19
ZA200400936 2004-02-05
ZA200400937 2004-02-05
ZA200400938 2004-02-05
ZA200406209 2004-08-04
ZA200406208 2004-08-04
ZA200408292 2004-10-14
EP05702724.5A EP1721493B1 (en) 2004-01-19 2005-01-19 Arc furnace pressure ring assembly

Related Parent Applications (3)

Application Number Title Priority Date Filing Date
EP05702724.5 Division 2005-01-19
EP05702724.5A Division-Into EP1721493B1 (en) 2004-01-19 2005-01-19 Arc furnace pressure ring assembly
EP05702724.5A Division EP1721493B1 (en) 2004-01-19 2005-01-19 Arc furnace pressure ring assembly

Publications (3)

Publication Number Publication Date
EP1876866A2 EP1876866A2 (en) 2008-01-09
EP1876866A3 true EP1876866A3 (en) 2013-07-03
EP1876866B1 EP1876866B1 (en) 2014-11-12

Family

ID=34812466

Family Applications (4)

Application Number Title Priority Date Filing Date
EP08010861.6A Expired - Lifetime EP1971190B1 (en) 2004-01-19 2005-01-19 Arc furnace pressure ring assembly
EP07017854.6A Expired - Lifetime EP1876866B1 (en) 2004-01-19 2005-01-19 Arc furnace pressure ring assembly
EP05702724.5A Expired - Lifetime EP1721493B1 (en) 2004-01-19 2005-01-19 Arc furnace pressure ring assembly
EP07017855A Withdrawn EP1876867A2 (en) 2004-01-19 2005-01-19 Arc furnace pressure ring assembly

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP08010861.6A Expired - Lifetime EP1971190B1 (en) 2004-01-19 2005-01-19 Arc furnace pressure ring assembly

Family Applications After (2)

Application Number Title Priority Date Filing Date
EP05702724.5A Expired - Lifetime EP1721493B1 (en) 2004-01-19 2005-01-19 Arc furnace pressure ring assembly
EP07017855A Withdrawn EP1876867A2 (en) 2004-01-19 2005-01-19 Arc furnace pressure ring assembly

Country Status (2)

Country Link
EP (4) EP1971190B1 (en)
WO (1) WO2005071335A2 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI123373B (en) 2008-06-06 2013-03-15 Outotec Oyj sealing device
FI124673B (en) * 2012-12-19 2014-11-28 Outotec Oyj Method of sealing the grooves in a contact groove and sealing arrangement
FI125964B (en) 2013-08-27 2016-04-29 Outotec Finland Oy Arrangement for cooling ducts in an electrode system
FI125874B (en) * 2013-08-27 2016-03-15 Outotec Oyj Press ring assembly for contact shoes in an electrode system
FI125431B (en) * 2013-08-27 2015-10-15 Outotec Finland Oy Arrangement for sealing a bellows cylinder in a press block of a press ring assembly
CN106461335B (en) * 2014-04-28 2018-11-30 哈奇有限公司 Sleeve seal for electric furnace electrode
CN105241255A (en) * 2015-09-24 2016-01-13 江苏德诚冶金电炉设备有限公司 Electrode sealing device for submerged arc furnace
NL2020368B1 (en) * 2018-02-01 2019-08-12 Metix Pty Ltd A component for an electric furnace
CN108834248B (en) * 2018-07-21 2024-01-02 汕头华兴冶金设备股份有限公司 Copper pressure ring of submerged arc furnace and processing method thereof
WO2025253325A1 (en) * 2024-06-05 2025-12-11 Furncor Engineering (Pty) Ltd T/A Furncor Pressure ring assembly

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997050153A1 (en) * 1996-06-27 1997-12-31 Action Finances Industries Device for electrically connecting an electrode in particular of a metallurgical furnace, with return means

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1051625A (en) * 1951-02-15 1954-01-18 Elektrokemisk As Electrode holder
US3717445A (en) * 1969-11-12 1973-02-20 Mitsubishi Steel Mfg Electrode holder for electric arc furnace and make the same
FR2159779A5 (en) * 1971-11-12 1973-06-22 Inst Elektroswarki Patona Plasmatron adjuster - for plasma arc furnace with compressed air drive

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997050153A1 (en) * 1996-06-27 1997-12-31 Action Finances Industries Device for electrically connecting an electrode in particular of a metallurgical furnace, with return means

Also Published As

Publication number Publication date
EP1721493B1 (en) 2018-03-07
EP1971190A3 (en) 2013-11-06
EP1876866A2 (en) 2008-01-09
WO2005071335A3 (en) 2006-02-23
EP1971190B1 (en) 2016-11-09
HK1119350A1 (en) 2009-02-27
EP1721493A2 (en) 2006-11-15
WO2005071335A2 (en) 2005-08-04
EP1971190A2 (en) 2008-09-17
EP1876867A2 (en) 2008-01-09
EP1876866B1 (en) 2014-11-12
HK1119351A1 (en) 2009-02-27

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