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WO2005071335A3 - Arc furnace pressure ring assembly - Google Patents

Arc furnace pressure ring assembly Download PDF

Info

Publication number
WO2005071335A3
WO2005071335A3 PCT/IB2005/050225 IB2005050225W WO2005071335A3 WO 2005071335 A3 WO2005071335 A3 WO 2005071335A3 IB 2005050225 W IB2005050225 W IB 2005050225W WO 2005071335 A3 WO2005071335 A3 WO 2005071335A3
Authority
WO
WIPO (PCT)
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.)
Ceased
Application number
PCT/IB2005/050225
Other languages
French (fr)
Other versions
WO2005071335A2 (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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP05702724.5A priority Critical patent/EP1721493B1/en
Publication of WO2005071335A2 publication Critical patent/WO2005071335A2/en
Publication of WO2005071335A3 publication Critical patent/WO2005071335A3/en
Anticipated expiration legal-status Critical
Ceased 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].
PCT/IB2005/050225 2004-01-19 2005-01-19 Arc furnace pressure ring assembly Ceased WO2005071335A2 (en)

Priority Applications (1)

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

Applications Claiming Priority (14)

Application Number Priority Date Filing Date Title
ZA200400360 2004-01-19
ZA2004/0360 2004-01-19
ZA200400936 2004-02-05
ZA200400938 2004-02-05
ZA2004/0937 2004-02-05
ZA2004/0936 2004-02-05
ZA200400937 2004-02-05
ZA2004/0938 2004-02-05
ZA200406208 2004-08-04
ZA2004/6209 2004-08-04
ZA2004/6208 2004-08-04
ZA200406209 2004-08-04
ZA200408292 2004-10-14
ZA2004/8292 2004-10-14

Publications (2)

Publication Number Publication Date
WO2005071335A2 WO2005071335A2 (en) 2005-08-04
WO2005071335A3 true WO2005071335A3 (en) 2006-02-23

Family

ID=34812466

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2005/050225 Ceased WO2005071335A2 (en) 2004-01-19 2005-01-19 Arc furnace pressure ring assembly

Country Status (2)

Country Link
EP (4) EP1721493B1 (en)
WO (1) WO2005071335A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Families Citing this family (8)

* 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
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
FI125874B (en) * 2013-08-27 2016-03-15 Outotec Oyj Press ring assembly for contact shoes in an electrode system
FI125964B (en) * 2013-08-27 2016-04-29 Outotec Finland Oy Arrangement for cooling ducts in an electrode system
CA2946918C (en) * 2014-04-28 2017-07-25 Hatch Ltd. Sleeve seal for electric furnace electrodes
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

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Family Cites Families (2)

* 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
FR2750537B1 (en) * 1996-06-27 1998-08-28 Action Finances Ind DEVICE FOR ELECTRICALLY CONNECTING AN ELECTRODE, PARTICULARLY A METALLURGICAL OVEN, WITH RETURN MEANS

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Also Published As

Publication number Publication date
WO2005071335A2 (en) 2005-08-04
EP1876867A2 (en) 2008-01-09
EP1721493B1 (en) 2018-03-07
EP1876866A3 (en) 2013-07-03
EP1971190B1 (en) 2016-11-09
EP1721493A2 (en) 2006-11-15
EP1876866B1 (en) 2014-11-12
EP1971190A3 (en) 2013-11-06
HK1119350A1 (en) 2009-02-27
HK1119351A1 (en) 2009-02-27
EP1971190A2 (en) 2008-09-17
EP1876866A2 (en) 2008-01-09

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