WO2004111275A1 - Element de refroidissement et procede de production d'un element de refroidissement - Google Patents

Element de refroidissement et procede de production d'un element de refroidissement Download PDF

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Publication number
WO2004111275A1
WO2004111275A1 PCT/FI2004/000354 FI2004000354W WO2004111275A1 WO 2004111275 A1 WO2004111275 A1 WO 2004111275A1 FI 2004000354 W FI2004000354 W FI 2004000354W WO 2004111275 A1 WO2004111275 A1 WO 2004111275A1
Authority
WO
WIPO (PCT)
Prior art keywords
shoulder
housing
cooling element
copper
cooling
Prior art date
Application number
PCT/FI2004/000354
Other languages
English (en)
Finnish (fi)
Inventor
Pertti MÄKINEN
Original Assignee
Outokumpu Copper Products Oy
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 Copper Products Oy filed Critical Outokumpu Copper Products Oy
Priority to DE112004000914T priority Critical patent/DE112004000914T5/de
Publication of WO2004111275A1 publication Critical patent/WO2004111275A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/10—Cooling; Devices therefor
    • 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
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/10—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B1/24—Cooling arrangements
    • 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
    • F27B3/24—Cooling arrangements
    • 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
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/12—Casings; Linings; Walls; Roofs incorporating cooling arrangements
    • 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

Definitions

  • the invention relates to a cooling element defined in the independent claims and a method of manufacturing the cooling element.
  • cooling elements that are generally made of copper.
  • the cooling elements are water-cooled, and thus provided with a cooling water channel system.
  • the cooling elements are used for protecting the reactor linings of reactors for pyrometallurgical prosesses, wherein the heat emitted on the lining surface is transferred to water through the cooling element and thus wearing of the lining is essentially reduced in comparison with a reactor that is not cooled.
  • the reduction in the wearing is contributed by a so-called autogeneous lining that is solidified on the surface of the fireproof lining due to the cooling process, said autogeneous lining being composed of slag and other matter separated from the molten phases.
  • the working conditions in the reactor are extreme, when the cooling elements are subjected to intensive corrosion and erosion strains caused by the furnace atmosphere and by contacts with the molten material. Also gas circulations in the reactor can be harmful for the linings on the reactor wall.
  • gas circulations in the reactor can be harmful for the linings on the reactor wall.
  • the object of the present invention is to introduce a novel cooling element.
  • the object of the invention is to introduce a durable cooling element that, apart from cooling, also supports the linings on the reactor wall and improves gas circulation in the reactor.
  • Fl 109233 teaches a cooling element particularly for such furnaces where a corrosion-resistant surface layer is formed on the element surface by a diffusion joint, which corrosion-resistant surface is made of steel.
  • the arrangement according to the invention When a shoulder is connected to the cooled housing of the cooling element, the internal gas circulation in the reactor, such as a furnace, is essentially improved by this structure; in addition, the cooling element at the same time supports and cools the lining of the reactor wall.
  • the cooling element When the cooling element is arranged essentially underneath the reactor wall lining, the housing and the shoulder support the wall lining. If a shoulder is arranged in the cooling element only at the top edge of the housing, and not along the whole height of the housing, more room is left in the reactor to be utilized in the width direction thereof, i.e. in principle the reactor diameter is extended. Advantageously there is reached the necessary cooling effect for the cooling element.
  • the shoulder turns the direction of the gas circulation preferably away from the wall lining, which means that its corroding effects in the lining are reduced.
  • the cooling element supports the lining in a better way.
  • the metallurgical joint is made as a diffusion joint, by which an extremely wear- resistant and long-lasting joint is created between the shoulder and the housing, said joint being well resistant to the demanding process conditions in the pyrometallurgical reactor.
  • the joint between the shoulder and the housing can be reinforced with welding the shoulder at its edge to the housing.
  • the method according to the invention is a fast, easy and low-cost way to interconnect elements made of copper or copper alloy, for example in comparison with a situation where the shoulder would be made in the housing by forging.
  • the invention is described in more detail below with reference to the appended drawings.
  • FIG. 1 A cooling element according to the invention
  • FIG. 2 A cooling element according to the invention
  • FIGs 1 and 2 illustrate a cooling element 1 according to the invention, to be employed in the structure of a pyrometallurgical reactor, such as a furnace, used in metal processes, said cooling element comprising a housing 2 made of copper or copper alloy, provided with a channel system 3 for the cooling agent circulation.
  • the cooling element 1 illustrated in figures 1 and 2 is an element used in a furnace.
  • Figure 2 shows the embodiment of figure 1 , viewed in the direction A.
  • a shoulder 6, made of copper or copper alloy is joined to the housing 2 and arranged essentially underneath the lining 5 of the reactor wall 4, so that a metallurgical joint is created in the junction 7 between the housing 2 and the shoulder 6.
  • the shoulder 6 is formed in connection with the cooled housing 2 of the cooling element 1 , so that the shoulder 6 guides the gas circulation in the reactor, as well as supports and cools the lining 5 of the reactor wall 4.
  • the housing 2 according to the invention made of copper or copper alloy, is formed for instance by casting a plate billet that is rolled when necessary.
  • a channel system 3 for the cooling agent circulation is arranged in the plate billet for example by drilling or by some other known means.
  • the channel system 3 is connected to a channel 12 for feeding the cooling agent to the channel system.
  • the shoulder 6 is produced by forming an object of copper or copper alloy for example by casting or rolling.
  • the metallurgical joint between the housing and the shoulder is made as a diffusion joint.
  • the formation of the joint takes place as a result from a molten and solid substance diffusion and the successive phase change reactions, when the housing 2 and the shoulder 6 are pressed together, and the junction area 7 is heated at least in one step.
  • soldering agent containing at least silver, copper or tin In the junction area 7 between the housing 2 and the shoulder 6, there is fed soldering agent containing at least silver, copper or tin.
  • the soldering agent arranged between the housing 2 and the shoulder 6 is essentially a thin silver film. The silver film can also be tin- coated.
  • the creation of the joint requires a temperature of about 600 - 800 degrees, and the thickness of the junction is of the order of tens of micrometers.
  • the shoulder 6 is advantageously beveled at the bottom edge 8, so that the shoulder is thicker on the side of the housing 2.
  • the reactor gas circulations proceed in the direction of the arrow marked in the drawing, i.e. advantageously away from the reactor wall linings.
  • the shoulder is arranged at the top edge of the housing 2, i.e. at that edge that is located upper in the reactor.
  • the shoulder extends essentially along the whole width of the top edge 9 of the housing, and only along part of the height of the housing.
  • the depth 10 of the shoulder 6 according to the invention is advantageously 130 - 180 millimeters.
  • the total thickness 11 of the shoulder 6 and the housing 2 is at least as large as the thickness of the lining 5 of the wall above.
  • the cooling element 1 preferably supports the wall lining 5 located above it.
  • the shoulder 6 may also be provided with cooling agent circulation, which means that the cooling effect of the cooling element is increased.
  • the shoulder 6 is located in the reactor on that side of the housing element that is in contact with the melt.
  • a shoulder according to the invention could also be located on that side of the housing element that is in contact with the wall.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Chemistry (AREA)
  • Furnace Details (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Blast Furnaces (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)

Abstract

L'invention concerne un élément de refroidissement (1) destiné à être utilisé dans la structure d'un réacteur pyrométallurgique, de type four, employé dans des procédés de traitement de métaux. Cet élément de refroidissement comprend un logement (2) constitué de cuivre ou d'un alliage de cuivre, muni d'un système de canal (3) permettant de faire circuler l'agent de refroidissement, de façon qu'un épaulement (6) constitué de cuivre ou d'un alliage de cuivre soit relié au logement (2) et soit disposé sensiblement sous le garnissage (5) de la paroi (4) du réacteur, de sorte qu'un joint métallurgique soit crée au niveau de la jonction (7) située entre le logement et l'épaulement. L'invention concerne également un procédé de production d'un élément de refroidissement destiné à être utilisé dans la structure d'un réacteur pyrométallurgique, de type four, employé dans des procédés de traitement de métaux.
PCT/FI2004/000354 2003-06-12 2004-06-10 Element de refroidissement et procede de production d'un element de refroidissement WO2004111275A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112004000914T DE112004000914T5 (de) 2003-06-12 2004-06-10 Kühlungselement und Verfahren zur Herstellung eines Kühlungselements

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20030882A FI116317B (fi) 2003-06-12 2003-06-12 Jäähdytyselementti ja menetelmä jäähdytyselementin valmistamiseksi
FI20030882 2003-06-12

Publications (1)

Publication Number Publication Date
WO2004111275A1 true WO2004111275A1 (fr) 2004-12-23

Family

ID=8566245

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2004/000354 WO2004111275A1 (fr) 2003-06-12 2004-06-10 Element de refroidissement et procede de production d'un element de refroidissement

Country Status (8)

Country Link
KR (1) KR20060039858A (fr)
CN (1) CN100357455C (fr)
AR (1) AR044654A1 (fr)
CL (1) CL2004001385A1 (fr)
DE (1) DE112004000914T5 (fr)
FI (1) FI116317B (fr)
PE (1) PE20050002A1 (fr)
WO (1) WO2004111275A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI121429B (fi) * 2005-11-30 2010-11-15 Outotec Oyj Jäähdytyselementti ja menetelmä jäähdytyselementin valmistamiseksi

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3881860A (en) * 1972-12-19 1975-05-06 Jan Hendrik Brandenburg Cooled shaft-furnace and stave-cooler to be used therefor
US4157815A (en) * 1978-04-28 1979-06-12 Inland Steel Company Furnace bottom construction with seal
SU1035069A1 (ru) * 1978-01-20 1983-08-15 Всесоюзный Научно-Исследовательский И Проектный Институт По Очистке Технологических Газов,Сточных Вод И Использованию Вторичных Энергоресурсов Предприятий Черной Металлургии Холодильник дл металлургических печей
US4437651A (en) * 1980-11-07 1984-03-20 Union Siderurgique Du Nord Et De L'est De La France Cooling plate for blast-furnaces
US5676908A (en) * 1995-02-07 1997-10-14 Man Gutenoffungshutte Aktiengesellschaft Plate for cooling shaft furnaces
WO2001063192A1 (fr) * 2000-02-23 2001-08-30 Outokumpu Oyj Element de refroidissement et procede de fabrication de cet element de refroidissement
WO2002037044A1 (fr) * 2000-11-01 2002-05-10 Outokumpu Oyj Element de refroidissement

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2215492Y (zh) * 1994-06-28 1995-12-20 冶金工业部重庆钢铁设计研究院 凸台倾斜的冷却壁

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3881860A (en) * 1972-12-19 1975-05-06 Jan Hendrik Brandenburg Cooled shaft-furnace and stave-cooler to be used therefor
SU1035069A1 (ru) * 1978-01-20 1983-08-15 Всесоюзный Научно-Исследовательский И Проектный Институт По Очистке Технологических Газов,Сточных Вод И Использованию Вторичных Энергоресурсов Предприятий Черной Металлургии Холодильник дл металлургических печей
US4157815A (en) * 1978-04-28 1979-06-12 Inland Steel Company Furnace bottom construction with seal
US4437651A (en) * 1980-11-07 1984-03-20 Union Siderurgique Du Nord Et De L'est De La France Cooling plate for blast-furnaces
US5676908A (en) * 1995-02-07 1997-10-14 Man Gutenoffungshutte Aktiengesellschaft Plate for cooling shaft furnaces
WO2001063192A1 (fr) * 2000-02-23 2001-08-30 Outokumpu Oyj Element de refroidissement et procede de fabrication de cet element de refroidissement
WO2002037044A1 (fr) * 2000-11-01 2002-05-10 Outokumpu Oyj Element de refroidissement

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 198420, Derwent World Patents Index; AN 1984-125381, XP002981480 *

Also Published As

Publication number Publication date
FI20030882A0 (fi) 2003-06-12
DE112004000914T5 (de) 2006-05-11
FI116317B (fi) 2005-10-31
CL2004001385A1 (es) 2005-05-13
CN100357455C (zh) 2007-12-26
PE20050002A1 (es) 2005-03-08
KR20060039858A (ko) 2006-05-09
AR044654A1 (es) 2005-09-21
FI20030882A (fi) 2004-12-13
CN1806056A (zh) 2006-07-19

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