EP0052039A1 - Kühlkasten für Hochöfen - Google Patents

Kühlkasten für Hochöfen Download PDF

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Publication number
EP0052039A1
EP0052039A1 EP81401681A EP81401681A EP0052039A1 EP 0052039 A1 EP0052039 A1 EP 0052039A1 EP 81401681 A EP81401681 A EP 81401681A EP 81401681 A EP81401681 A EP 81401681A EP 0052039 A1 EP0052039 A1 EP 0052039A1
Authority
EP
European Patent Office
Prior art keywords
plate according
cooling
cast iron
face
tubes
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
EP81401681A
Other languages
English (en)
French (fr)
Other versions
EP0052039B1 (de
Inventor
Jean Cordier
Pierre Rollot
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.)
USINOR SA
Original Assignee
USINOR SA
Union Siderurgique du Nord et de lEst de France SA USINOR
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 USINOR SA, Union Siderurgique du Nord et de lEst de France SA USINOR filed Critical USINOR SA
Priority to AT81401681T priority Critical patent/ATE11570T1/de
Publication of EP0052039A1 publication Critical patent/EP0052039A1/de
Application granted granted Critical
Publication of EP0052039B1 publication Critical patent/EP0052039B1/de
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/10—Cooling; Devices therefor

Definitions

  • the present invention relates to cooling plates for blast furnaces.
  • These cooling plates are elements placed against the internal face of the shielding and fulfill the dual function of vigorous cooling of the refractory and of screen as the heat flow passes through the shielding.
  • the cooling plates consist of cast iron elements traversed in their mass by a network of tubes in which circulates a cooling fluid which is generally water. These cooling tubes open at the top and bottom parts respectively of the cooling plates and pass through the shield, outside of which they are connected to cooling tubes of an adjacent upper or lower plate.
  • the tubes thus connected determine the circulation lines of the fluid rising in a substantially vertical plane along the wall of the blast furnace, these lines being connected to an external circuit for circulation and cooling of the fluid.
  • the cooling plates must be designed in such a way that they resist thermomechanical deformation resulting from the high fluxes generated in the blast furnace and, in addition, so as to ensure a good heat exchange with the refractory and to ensure the effective attachment of this last.
  • the cooling plates known so far do not fully satisfy these conditions and have defects which lead, following repeated thermal stresses, to. the formation of cracks in their mass e.t, by way of. as a consequence, the release of water into the blast furnace, in the form of leaks of the cooling fluid, as well as poor mechanical strength of the cooling tubes at their exit from the cooling plates and through the shielding. There is, moreover, a difficulty in fixing the refractory lining permanently on the cooling plates.
  • the object of the present invention is to remedy these drawbacks by providing cooling plates with increased operating safety, having better characteristics of heat exchange and attachment of the refractory lining.
  • the present invention thus relates to a cooling plate consisting of a cast iron element of substantially parallelepiped shape, in which are embedded longitudinal tubes arranged parallel to each other, these tubes opening onto the same main face, respectively to the upper parts and bottom of the cooling plate in a protective sheath, characterized in that the face opposite to that where the cooling tubes open out is embossed.
  • the transverse grooves of the embossed face include silicon carbide inserts.
  • the embossed face has a projecting part called a coping.
  • This coping is arranged at the upper part or at a middle part of the embossed face, or can constitute the upper edge of the cooling plate.
  • the cooling plate 1 arranged vertically, is placed between the shield 2 of the blast furnace and the refractory lining 3.
  • the cooling plate 1 rests against the internal wall of the shield by bosses 4 projecting from the main face 5 hovers opposite the shielding.
  • the cooling plate is traversed by longitudinal tubes 6 for circulation of the cooling fluid arranged parallel to each other and extending along a longitudinal axis disposed vertically.
  • the tubes 6 open from the plate 1 to the upper and lower parts, respectively, in sleeves 7 and 8 which are embedded in the mass of cast iron of the cooling plate.
  • the part of the cooling tubes leaving the plates and their sheaths are arranged in such a way that they are strictly horizontal, that is to say that they are slightly inclined relative to the perpendicular to the surface of the shield at the point of crossing of the latter.
  • the face 9 of the cooling plate opposite to the face 5, which is the face on which the cooling tubes open, has an embossed shape.
  • This embossed shape is obtained by the intersection at right angles to longitudinal 10 and transverse grooves 11, the longitudinal grooves 10 being parallel to the tubes 6.
  • the grooves can have a square, rectangular or trapezoidal cross section.
  • the longitudinal grooves 10 have a trapezoidal section whose flared part is directed towards the outside of the plate, while the transverse grooves 11 have a trapezoidal section arranged in dovetail.
  • inserts 12 of corresponding trapezoidal section which project from the embossed face 9 of the cooling plate.
  • inserts are made of silicon carbide and placed in situ during the casting of the cast iron from the cooling plate. This characteristic of casting the cast iron around the bricks of special silicon carbide, allows an intimate contact, ensured by a chemical bond, between the silicon carbide and the cast iron, which guarantees an excellent coefficient of heat transfer between the two materials.
  • transverse grooves On the cooling plate shown in fig. 1, all the transverse grooves have inserts made of silicon carbide, but it is possible to space these inserts every two or three grooves and even to have none.
  • the transverse grooves without an insert can have a trapezoidal cross section whose flared part is directed towards the outside of the plate.
  • the embossing of the face 9 opposite the refractory lining makes it possible, first of all, to increase the interface between the refractory lining and the cast iron and, therefore, to promote heat exchange. It also performs a mechanical anchoring function of the refractory inside the blast furnace.
  • the silicon carbide inserts play a role in improving the bond between the cast iron and the refractory lining. Furthermore, in the event of a disappearance of the refractory lining during operation blast furnace, these elements promote self-filling and provide abrasion resistance.
  • fig. 2 is shown in section a cooling plate of the coping type.
  • the cooling plate as in the general case of fig. 1, is placed against the internal face of the shield 2.
  • Longitudinal cooling tubes 6 are embedded in the cast iron mass of the cooling plate and exit at the top and bottom in protective sleeves 7 and 8 which pass through the shield 2.
  • stuffing masses intended to ensure a solution of continuity of the refractory lining system, cooling plate and shielding are arranged between the face 5 of the cooling plate and the shield.
  • the cooling plate is held in close contact against the shielding by means external to the latter, not shown.
  • a coping 13 projecting from the embossed face 9 of the cooling plate comprises, embedded in its mass, a transverse tube 14 for circulation of the cooling fluid, which opens on the face 5 opposite the shielding, through protective sleeves 15 , embedded in the metallic mass of the cooling plate and passing through the shield 2.
  • the transverse tube is arranged in such a way that it passes between the longitudinal tubes 6 for circulation of the cooling fluid.
  • the transverse tubes 14 are connected outside the blast furnace to other similar tubes cooling copings of other upper or lower cooling plates.
  • the circuit of the transverse cooling tubes is likewise connected to an external circuit for circulation and cooling of the fluid.
  • the coping may include a cooling tube, as shown in figs. 2 and 3, but you can also have several, depending on the size of the coping.
  • This coping can be arranged at a part slightly lower at the upper edge of the cooling plate, or at a more median part, or constitute the upper edge of the cooling plate.
  • the copings are arranged at a lower part at the upper edge of the cooling surface or more median, whereas for the last row located in the tank area, the coping forms the upper edge of the cooling plates.
  • the coping may also have CSi inserts in grooves made for this purpose.
  • the copings 13 have an upper face 16 substantially perpendicular to the embossed face 9 so that it is substantially horizontal when the cooling plate is positioned in the blast furnace.
  • the cooling plates include a number of longitudinal cooling tubes 6 which can vary from 3 to 5.
  • the density of the internal cooling tubes is varied as a function of the heat fluxes emitted in the blast furnace and it is obvious that the more this heat flow is intense, the more the distance between the tubes must be reduced.
  • the cooling plates at the belly there are tubes at a center distance of 195 to 210 mm, while in the less stressed areas of the tank, this center distance is increased to 270-320 mm.
  • the dimensions of the plates are also a function of the heat flux emitted in the various areas at the top furnace.
  • there are cooling plates of smaller dimensions comprising the same number of tubes as in the zones stressed by a less intense heat flow.
  • the cooling plates are made of cast iron which must have, in addition to the qualities inherent in this material, characteristics specific to its particular use.
  • Fonts of types (a) and (b) present the following analysis in percentage by weight.
  • Fonts of types (a) and (b) differ only in their crystallographic structure.
  • Cast iron of type (b) is of controlled lamellar graphite of rounded type A predominant, stabilized and of high conductivity. This particular crystallographic structure is obtained by a selected oven, a control of overheating and by inoculation.
  • Cast iron of type (c) with aluminum presents the following analysis in percentage by weight: Inoculation agent based on Cr alloy, expressed in Cr: 0.3 to 2%.
  • an inoculating agent an alloy based on copper and rare earths, the proportion of cerium in the rare earths is 50%, the proportion of Cu and rare earths in the alloy being identical to that defined. for Cr.
  • This aluminum cast iron does not quench, it retains at high temperature its conductivity and its mechanical resistance to abrasion and cracking.
  • Type C cast iron is used in the most stressed places of the blast furnace, by heat fluxes, and by mechanical abrasion effects, in particular for the cooling plates of the bottom of the tank, with curbs, and of the belly.
  • the cast iron has the following composition in percentage by weight:

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Blast Furnaces (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
EP81401681A 1980-11-07 1981-10-23 Kühlkasten für Hochöfen Expired EP0052039B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81401681T ATE11570T1 (de) 1980-11-07 1981-10-23 Kuehlkasten fuer hochoefen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8023805 1980-11-07
FR8023805A FR2493871A1 (fr) 1980-11-07 1980-11-07 Plaques de refroidissement pour hauts fourneaux

Publications (2)

Publication Number Publication Date
EP0052039A1 true EP0052039A1 (de) 1982-05-19
EP0052039B1 EP0052039B1 (de) 1985-01-30

Family

ID=9247776

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81401681A Expired EP0052039B1 (de) 1980-11-07 1981-10-23 Kühlkasten für Hochöfen

Country Status (7)

Country Link
US (1) US4437651A (de)
EP (1) EP0052039B1 (de)
JP (1) JPS57110606A (de)
AT (1) ATE11570T1 (de)
CA (1) CA1154590A (de)
DE (1) DE3168672D1 (de)
FR (1) FR2493871A1 (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2552105A1 (fr) * 1983-09-21 1985-03-22 Usinor Perfectionnement aux plaques de refroidissement pour hauts-fourneaux
FR2698105A1 (fr) * 1992-11-13 1994-05-20 Mtu Muenchen Gmbh Pièce en un substrat de base métallique comportant un revêtement céramique.
EP1074806A1 (de) * 1999-08-06 2001-02-07 KM Europa Metal Aktiengesellschaft Kühlelement
US7537724B2 (en) 2002-08-20 2009-05-26 Siemens Vai Metals Technologies Gmbh & Co. Cooling plate for metallurgic furnaces
AU2005210677B2 (en) * 2004-02-04 2009-12-10 Tata Steel Limited Metallurgical vessel
LU91551B1 (en) * 2009-04-14 2010-10-15 Wurth Paul Sa Cooling plate for a metallurgical furnace
US8038932B2 (en) 2004-02-04 2011-10-18 Technological Resources Pty. Limited Metallurgical vessel
LU91788B1 (en) * 2011-02-08 2012-08-09 Wurth Paul Sa Stave cooler for a metallurgical furnace
US8545752B2 (en) 2008-06-06 2013-10-01 Paul Wurth S.A. Cooling plate for a metallurgical furnace
WO2018122590A1 (en) * 2016-12-30 2018-07-05 Arcelormittal Copper cooling plate with wear resistant inserts, for a blast furnace

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3323781C2 (de) * 1983-07-01 1986-04-03 Uhde Gmbh, 4600 Dortmund Einrichtung zur Kühlung dickwandiger, waagerecht angeordneter Rohrböden von Wärmetauschern
JPH0193841U (de) * 1987-12-15 1989-06-20
DE3925280A1 (de) * 1989-07-31 1991-02-07 Gutehoffnungshuette Man Fluessigkeitsdurchstroemtes kuehlelement fuer schachtoefen
US5464592A (en) * 1993-11-22 1995-11-07 Texaco Inc. Gasifier throat
DE19503912C2 (de) * 1995-02-07 1997-02-06 Gutehoffnungshuette Man Kühlplatte für Schachtöfen, insbesondere Hochöfen
KR100367467B1 (ko) * 1999-02-03 2003-01-10 신닛뽄세이테쯔 카부시키카이샤 아크로의 노벽 및 노덮개용 수냉패널
NL1011838C2 (nl) * 1999-04-20 2000-10-23 Hoogovens Technical Services B Koelpaneel voor een schachtoven, schachtoven voorzien van dergelijke koelpanelen en een werkwijze voor de vervaardiging van zo'n koelpaneel.
US6676597B2 (en) * 2001-01-13 2004-01-13 Medtronic, Inc. Method and device for organ positioning
KR100815808B1 (ko) * 2001-12-26 2008-03-20 주식회사 포스코 용광로의 이중구조 스테이브 냉각장치
CN100343395C (zh) * 2002-03-12 2007-10-17 Km欧洲钢铁股份有限公司 冷却元件
FI115251B (fi) * 2002-07-31 2005-03-31 Outokumpu Oy Jäähdytyselementti
DE10249333B4 (de) * 2002-10-22 2005-09-08 Refractory Intellectual Property Gmbh & Co. Kg Metallurgisches Schmelzgefäß
US6870873B2 (en) * 2003-05-28 2005-03-22 Systems Spray-Cooled, Inc. Device for improved slag retention in water cooled furnace elements
FI116317B (fi) * 2003-06-12 2005-10-31 Outokumpu Oy Jäähdytyselementti ja menetelmä jäähdytyselementin valmistamiseksi
US7832367B2 (en) * 2007-12-05 2010-11-16 Berry Metal Company Furnace panel leak detection system
BR112012020858A2 (pt) * 2010-02-23 2016-08-23 Nippon Steel Corp aduela e alto-forno.
EP2553372A1 (de) * 2010-03-30 2013-02-06 Berry Metal Company Vorrichtung und verfahren für die stütze eines gasdichten sekundären plattenkühlers
US8834784B2 (en) * 2011-01-27 2014-09-16 Allan J. MacRae Thin stave cooler and support frame system
RU2718027C2 (ru) * 2016-02-18 2020-03-30 Хэтч Лтд. Износостойкий композитный материал, его применение в охлаждающих элементах для металлургической печи и способ его получения
DE102016107284A1 (de) * 2016-04-20 2017-10-26 Kme Germany Gmbh & Co. Kg Kühlplatte für ein Kühlelement für metallurgische Öfen
CA3045969C (en) * 2016-12-30 2021-07-27 Arcelormittal Copper cooling plate with multilayer protrusions comprising wear resistant material, for a blast furnace
RU2682499C1 (ru) * 2017-09-21 2019-03-19 Общество с ограниченной ответственностью "Севен Рефракториз" Способ футеровки шахты доменной печи, холодильный блок шахты доменной печи и способ его изготовления

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1533864A1 (de) * 1967-03-08 1970-03-19 Rohde Dr Ing Ewald W Kuehlkaesten fuer Hochoefen
DE1508059A1 (de) * 1966-07-08 1970-07-23 Rohde Dr Ing Ewald W Hochofen-Kuehlkasten fuer Kaltwasser- oder Verdampfungskuehlung
FR2203966A1 (de) * 1972-10-19 1974-05-17 Didier Werke Ag
FR2230730A1 (de) * 1973-05-25 1974-12-20 Inst Ochistke T
FR2257068A1 (en) * 1974-01-03 1975-08-01 Hoogovens Ijmuiden Bv Cooling panels for blast furnaces - providing cooling for internal refractory lining support ribs
US3940552A (en) * 1974-01-23 1976-02-24 Daido Seiko Kabushiki Kaisha Water-cooled panel for arc furnace
FR2371652A2 (fr) * 1976-11-23 1978-06-16 Sofresid Plaque de refroidissement pour parois de fours a cuve, notamment pour hauts-fourneaux
US4161620A (en) * 1976-11-17 1979-07-17 Kyoei Seiko Kabushiki Kaisha Electric arc furnace for steel making, with no refractory bricks at the furnace wall
EP0012132A1 (de) * 1978-12-01 1980-06-11 Arbed S.A. Metallische Kühlelemente für Industrieöfen

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1508059A1 (de) * 1966-07-08 1970-07-23 Rohde Dr Ing Ewald W Hochofen-Kuehlkasten fuer Kaltwasser- oder Verdampfungskuehlung
DE1533864A1 (de) * 1967-03-08 1970-03-19 Rohde Dr Ing Ewald W Kuehlkaesten fuer Hochoefen
FR2203966A1 (de) * 1972-10-19 1974-05-17 Didier Werke Ag
FR2230730A1 (de) * 1973-05-25 1974-12-20 Inst Ochistke T
FR2257068A1 (en) * 1974-01-03 1975-08-01 Hoogovens Ijmuiden Bv Cooling panels for blast furnaces - providing cooling for internal refractory lining support ribs
US3940552A (en) * 1974-01-23 1976-02-24 Daido Seiko Kabushiki Kaisha Water-cooled panel for arc furnace
US4161620A (en) * 1976-11-17 1979-07-17 Kyoei Seiko Kabushiki Kaisha Electric arc furnace for steel making, with no refractory bricks at the furnace wall
FR2371652A2 (fr) * 1976-11-23 1978-06-16 Sofresid Plaque de refroidissement pour parois de fours a cuve, notamment pour hauts-fourneaux
EP0012132A1 (de) * 1978-12-01 1980-06-11 Arbed S.A. Metallische Kühlelemente für Industrieöfen

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2552105A1 (fr) * 1983-09-21 1985-03-22 Usinor Perfectionnement aux plaques de refroidissement pour hauts-fourneaux
EP0142399A1 (de) * 1983-09-21 1985-05-22 Sollac Plattenkühler für Hochöfen
FR2698105A1 (fr) * 1992-11-13 1994-05-20 Mtu Muenchen Gmbh Pièce en un substrat de base métallique comportant un revêtement céramique.
EP1074806A1 (de) * 1999-08-06 2001-02-07 KM Europa Metal Aktiengesellschaft Kühlelement
US7537724B2 (en) 2002-08-20 2009-05-26 Siemens Vai Metals Technologies Gmbh & Co. Cooling plate for metallurgic furnaces
US8038932B2 (en) 2004-02-04 2011-10-18 Technological Resources Pty. Limited Metallurgical vessel
AU2005210677B2 (en) * 2004-02-04 2009-12-10 Tata Steel Limited Metallurgical vessel
US8545752B2 (en) 2008-06-06 2013-10-01 Paul Wurth S.A. Cooling plate for a metallurgical furnace
LU91551B1 (en) * 2009-04-14 2010-10-15 Wurth Paul Sa Cooling plate for a metallurgical furnace
WO2010119013A1 (en) * 2009-04-14 2010-10-21 Paul Wurth S.A. Cooling plate for a metallurgical furnace
EA020449B1 (ru) * 2009-04-14 2014-11-28 Поль Вурт С.А. Холодильная плита для металлургической печи
US8920709B2 (en) 2009-04-14 2014-12-30 Paul Wurth S.A. Cooling plate for a metallurgical furnace
LU91788B1 (en) * 2011-02-08 2012-08-09 Wurth Paul Sa Stave cooler for a metallurgical furnace
WO2012107322A1 (en) 2011-02-08 2012-08-16 Paul Wurth S.A. Stave cooler for a metallurgical furnace
CN103348018A (zh) * 2011-02-08 2013-10-09 保尔伍斯股份有限公司 用于冶金炉的板式冷却器
WO2018122590A1 (en) * 2016-12-30 2018-07-05 Arcelormittal Copper cooling plate with wear resistant inserts, for a blast furnace
RU2718775C1 (ru) * 2016-12-30 2020-04-14 Арселормиттал Медная холодильная плита с износостойкими вставками для доменной печи
US11150020B2 (en) 2016-12-30 2021-10-19 Arcelormittal Copper cooling plate with wear resistant inserts, for a blast furnace

Also Published As

Publication number Publication date
FR2493871A1 (fr) 1982-05-14
EP0052039B1 (de) 1985-01-30
DE3168672D1 (en) 1985-03-14
US4437651A (en) 1984-03-20
ATE11570T1 (de) 1985-02-15
JPS57110606A (en) 1982-07-09
FR2493871B1 (de) 1982-12-10
JPS621441B2 (de) 1987-01-13
CA1154590A (en) 1983-10-04

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