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WO2000053986A1 - Procede de fabrication de chenal de coulee et chenal de coulee fabrique a l'aide du procede - Google Patents

Procede de fabrication de chenal de coulee et chenal de coulee fabrique a l'aide du procede Download PDF

Info

Publication number
WO2000053986A1
WO2000053986A1 PCT/FI2000/000144 FI0000144W WO0053986A1 WO 2000053986 A1 WO2000053986 A1 WO 2000053986A1 FI 0000144 W FI0000144 W FI 0000144W WO 0053986 A1 WO0053986 A1 WO 0053986A1
Authority
WO
WIPO (PCT)
Prior art keywords
launder
melt
melt launder
cooling water
water channels
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/FI2000/000144
Other languages
English (en)
Inventor
Kaarle Peltoniemi
Pekka SETÄLÄ
Juha Piispanen
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.)
Outokumpu Oyj
Original Assignee
Outokumpu Oyj
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 Outokumpu Oyj filed Critical Outokumpu Oyj
Priority to AU28089/00A priority Critical patent/AU2808900A/en
Publication of WO2000053986A1 publication Critical patent/WO2000053986A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/14—Discharging devices, e.g. for slag
    • 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
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/14—Charging or discharging liquid or molten material
    • 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
    • F27D9/00—Cooling of furnaces or of charges therein
    • F27D2009/0002—Cooling of furnaces
    • F27D2009/001—Cooling of furnaces the cooling medium being a fluid other than a gas
    • F27D2009/0013—Cooling of furnaces the cooling medium being a fluid other than a gas the fluid being water

Definitions

  • the present invention relates to a method of manufacturing a melt launder, where the launder is used to discharge molten material, particularly molten slag from metal production, from a smelting furnace.
  • the launder In cross-section the launder is of curved and uniform shape, made of worked copper billet and equipped with cooling piping at the edges.
  • the invention also relates to a melt launder manufactured by this method.
  • Discharge launders made of brick and fireproof material are used for the discharge of molten matte or raw metal such as blister copper from a smelting furnace, but a discharge launder for molten slag can also be manufactured from copper, since the slag does not react with the launder material.
  • discharge launders were fabricated from many longitudinal pieces: base plate and edge plates. Only the edge plates are normally equipped with cooling water circulation, because of the desire to eliminate the possibility of water coming into contact with the molten material and causing the risk of explosion, should the base plate break under severe strain.
  • a blast furnace slag launder known in the prior art is described in the German patent publication 31 01 788, which launder is manufactured by casting it into a trough form.
  • the base of the trough is also equipped with cooling water piping.
  • the cooling water piping is formed by casting copper on top of it.
  • a discharge launder has now been developed, which in cross-section is of curved and uniform shape, made from worked copper or copper alloy billet and equipped at the edges with cooling piping.
  • the cooling piping is located in the edge parts above the calculated surface of the molten metal, so that there is no chance whatsoever of the water coming into contact with the molten material.
  • the launder is fabricated from slipcast and worked copper plate by bending it into a curve. Preferably one edge is higher than the other, in order to prevent the molten material flowing over the edge even when it is fed partly from the side.
  • the invention also relates to a launder manufactured by this method. The essential features of the invention will become apparent in the attached patent claims.
  • the discharge launder billet is preferably manufactured by slip-casting, and the billet is worked e.g. by rolling, whereby it is strengthened.
  • the rolled billet is bent into the desired shape, preferably curved so that one edge is higher than the other.
  • the advantage of worked copper billet compared to a cast structure is that in melt launder conditions, no grain growth and only the slightest amount of other deformation reactions have been observed in the worked billet, whereas deformations do occur in cast structure melt launders.
  • the melt launder manufactured by this method is very suitable for the discharge of the molten slag formed in the production of copper from the furnace.
  • Figure 1 shows a melt launder 1 , which in this case is formed of two sections 2 and 3, where the joint surfaces are transverse in relation to the length of the launder.
  • the sections are joined to each other with an overlapping joint 4.
  • the launder is supported from the outside by reinforcements 5.
  • Figure 2 shows how the reinforcement is attached to the melt launder, in this case with bolts 6, but clearly it can be done by some other suitable method.
  • the drawing also shows that one edge of the launder is made higher than the other, so that the discharging of the melt can also be made from the lower edge of the launder, thus preventing the smelt from splashing over the edge.
  • the launder cooling water channels 7 are connected to a cooling water assembly 8.
  • the cooling water channels are formed either during slip casting or by boring longitudinal holes in the side sections of the rolled and bent launder billet.
  • the advantage of bored holes is that there are only half as many holes to be plugged in this kind of piping than in channels made for instance during slip casting.
  • the number of points of discontinuity such as plugs are as few as possible.
  • the cooling water assembly to the piping are usually brought from elsewhere than directly from the boring point.
  • the inner surface of the cooling piping can be grooved into a pattern, thus obtaining an increased heat transfer surface compared with a smooth pipe, without having to increase the amount of cooling water.
  • the length of the required discharge launder is such that the launder has to be fabricated from more than one section, the necessary number of essentially identical sections are joined together.
  • the joining points are strengthened as needed, for instance, with external brace reinforcements and bolted joints.
  • the joint surfaces are machined to overlap each other in order to minimize the risk of melt leakages.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

L'invention a trait à un procédé de fabrication d'un chenal de coulée, ledit chenal servant à décharger une matière fondue, spécialement des scories en fusion provenant d'un four de fusion dans lequel les scories se forment au cours de la production de métaux. Le chenal de coulée est constitué d'une billette de cuivre uniforme travaillée, courbée en section transversale et pourvue de tuyaux de refroidissement sur les bords. L'invention a également trait à un chenal de coulée fabriqué à l'aide du procédé.
PCT/FI2000/000144 1999-03-10 2000-02-23 Procede de fabrication de chenal de coulee et chenal de coulee fabrique a l'aide du procede Ceased WO2000053986A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU28089/00A AU2808900A (en) 1999-03-10 2000-02-23 A method for the manufacture of a melt launder and a launder manufactured by this method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI990513 1999-03-10
FI990513A FI109308B (fi) 1999-03-10 1999-03-10 Menetelmä sulakourun valmistamiseksi ja menetelmällä valmistettu sulakouru

Publications (1)

Publication Number Publication Date
WO2000053986A1 true WO2000053986A1 (fr) 2000-09-14

Family

ID=8554135

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2000/000144 Ceased WO2000053986A1 (fr) 1999-03-10 2000-02-23 Procede de fabrication de chenal de coulee et chenal de coulee fabrique a l'aide du procede

Country Status (4)

Country Link
AU (1) AU2808900A (fr)
FI (1) FI109308B (fr)
PE (1) PE20010064A1 (fr)
WO (1) WO2000053986A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003033982A1 (fr) * 2001-10-19 2003-04-24 Outokumpu Oyj Chenal de coulee de fusion

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102873317B (zh) * 2012-09-25 2018-03-09 阳谷祥光铜业有限公司 一种渣包冷却方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3101788A1 (de) * 1980-02-19 1982-01-07 VEB Bandstahlkombinat Hermann Matern, DDR 1220 Eisenhüttenstadt Rinne, vorzugsweise schlackenrinne fuer hochoefen
JPH05288478A (ja) * 1992-04-08 1993-11-02 Sumitomo Metal Mining Co Ltd 水冷式銅樋の製造方法
US5268925A (en) * 1991-03-01 1993-12-07 Degussa Aktiengesellschaft Method and apparatus for the semi-continuous melting and discharging of ceramic material in an induction melting furnace with singering crust crucible
JPH07305966A (ja) * 1994-05-10 1995-11-21 Sumitomo Metal Mining Co Ltd 水冷ジャケット樋

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3101788A1 (de) * 1980-02-19 1982-01-07 VEB Bandstahlkombinat Hermann Matern, DDR 1220 Eisenhüttenstadt Rinne, vorzugsweise schlackenrinne fuer hochoefen
US5268925A (en) * 1991-03-01 1993-12-07 Degussa Aktiengesellschaft Method and apparatus for the semi-continuous melting and discharging of ceramic material in an induction melting furnace with singering crust crucible
JPH05288478A (ja) * 1992-04-08 1993-11-02 Sumitomo Metal Mining Co Ltd 水冷式銅樋の製造方法
JPH07305966A (ja) * 1994-05-10 1995-11-21 Sumitomo Metal Mining Co Ltd 水冷ジャケット樋

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 199348, Derwent World Patents Index; AN 1993-383721 *
DATABASE WPI Week 199604, Derwent World Patents Index; AN 1996-036478 *
PATENT ABSTRACTS OF JAPAN *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003033982A1 (fr) * 2001-10-19 2003-04-24 Outokumpu Oyj Chenal de coulee de fusion
EA005333B1 (ru) * 2001-10-19 2005-02-24 Отокумпу Оюй Желоб для расплава
US6936216B2 (en) 2001-10-19 2005-08-30 Outokumpu Technology Oy Melt launder
CN100436997C (zh) * 2001-10-19 2008-11-26 奥托库姆普联合股份公司 熔体流槽

Also Published As

Publication number Publication date
FI990513A0 (fi) 1999-03-10
FI109308B (fi) 2002-06-28
AU2808900A (en) 2000-09-28
FI990513L (fi) 2000-09-11
PE20010064A1 (es) 2001-02-21

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