EP0816515B1 - Kühlplatte für metallurgische Öfen der Eisen- und Stahlindustrie - Google Patents

Kühlplatte für metallurgische Öfen der Eisen- und Stahlindustrie Download PDF

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Publication number
EP0816515B1
EP0816515B1 EP97110960A EP97110960A EP0816515B1 EP 0816515 B1 EP0816515 B1 EP 0816515B1 EP 97110960 A EP97110960 A EP 97110960A EP 97110960 A EP97110960 A EP 97110960A EP 0816515 B1 EP0816515 B1 EP 0816515B1
Authority
EP
European Patent Office
Prior art keywords
copper
cooling plate
cooling
cast
pipes
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.)
Expired - Lifetime
Application number
EP97110960A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0816515A1 (de
Inventor
Ulrich Stein
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.)
Hundt and Weber GmbH
SMS Siemag AG
Original Assignee
SMS Schloemann Siemag AG
Hundt and Weber GmbH
Schloemann Siemag AG
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 SMS Schloemann Siemag AG, Hundt and Weber GmbH, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Publication of EP0816515A1 publication Critical patent/EP0816515A1/de
Application granted granted Critical
Publication of EP0816515B1 publication Critical patent/EP0816515B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • 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
    • F27D2009/0045—Cooling of furnaces the cooling medium passing a block, e.g. metallic
    • F27D2009/0048—Cooling of furnaces the cooling medium passing a block, e.g. metallic incorporating conduits for the medium
    • 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
    • F27D2009/0051—Cooling of furnaces comprising use of studs to transfer heat or retain the liner
    • 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
    • F27D2009/0056—Use of high thermoconductive elements
    • F27D2009/0062—Use of high thermoconductive elements made from copper or copper alloy

Definitions

  • the invention relates to a cooling plate for with a refractory lined furnaces, Direct reduction reactors and melter gasifiers Iron and steel industry consisting of cast Copper or a low-alloy copper alloy coolant channels arranged in their interior.
  • Such copper cooling plates are usually between the furnace jacket and the furnace lining and to the cooling system of the metallurgical furnace connected. On the inside facing the oven The cooling elements in blast furnaces are largely included provided with fireproof material for steel melting furnaces the copper cooling elements, however, are in the upper part of the furnace over the fireproof lining.
  • Cast copper plates are known in which the Cooling channels are formed by cast steel pipes.
  • An oxide layer hinders the cast-in steel pipes as well as an insufficient connection a uniform between the steel tube and copper plate Heat dissipation.
  • a cooling plate is known from DE 29 07 511 C2, from a forged or rolled ingot is made and where the cooling channels run vertically Blind holes are, which by mechanical Deep drilling are introduced. The target position of the holes according to height and side is adhered to exactly and thereby ensures even heat dissipation.
  • the cooling plate is facing the inside of the oven Side with webs and grooves and can with refractory stones or with a refractory Ramming compound lined.
  • EP 0 705 906 A1 describes one of a forged or rolled copper blank Cooling plate known for cooling the edge zones in addition to the vertical blind holes Cooling channels are introduced, which as vertical or horizontal blind bores of smaller diameter around the vertically arranged blind holes in the edges be introduced.
  • GB 1 386 645 describes a method for producing a metallic cooling element known with one or more internal cooling channels.
  • a metallic cooling element known with one or more internal cooling channels.
  • this liquid metal for example copper
  • DT 2 313 320 describes a by casting around at least one pipe Metal molded casting used for heat transfer between the casting and serves a medium flowing through the pipe.
  • the tube can be made of stainless steel Steel or nickel-copper exist; is the metal poured around the pipe a copper alloy.
  • the object of the invention is therefore a Copper cooling plate to create the high thermal conductivity good customization options to different institutions to be protected, such as furnaces, direct reduction reactors and melters, guaranteed.
  • Cooling plate prefabricated curved cooling pipes or Coolant channels, consisting of copper pipes, Copper pipe bends and copper pipe lugs, cast in.
  • pipes are in several rows next to each other and / or one above the other arranged.
  • the hairpin - shaped sides of the head Cooling channels are formed either by curved ones Pipes or through pipe bends or reversing caps.
  • the Einund Spouts are provided with pipe lugs.
  • the complete pipeline is welded and then for tightness by means of a pressure test of approx. 15 bar / 20 minute checked.
  • the pipes, pipe bends and pipe lugs must, however be thick-walled than commercially available pipes, because after the cast, they are raised for several hours Exposed to temperature in the mold are.
  • the completely prefabricated pipeline is in the Mold inserted, fixed in the lower case and then with poured over the copper melt so that the pipeline after the melt solidifies in the copper plate is embedded.
  • the flow and the flow rate of the Cooling medium is through the rounded piping compared to the angular transitions in the drilled cooling channels of a forged or rolled plate improved and harmonized.
  • Cooling plate bars and grooves for holding refractory material required which is either cast directly or by mechanical processing from a smooth wall can be worked out.
  • the inside of the plate is expedient smooth or flat because of the inside is not provided with a fire-resistant lining.
  • cooling plates also with horizontal side flanges be provided.
  • the invention is based on schematic Exemplary embodiments explained in more detail.
  • Fig. 1 shows a longitudinal section through the cooling plate (1) with, for example, four vertically arranged cooling pipes (2, 3, 4) inside the cooling plate (1) as well as recesses made in the outer wall (6) (12).
  • the supply of cooling water to the pipes (3) takes place from below via the coolant supply lines of the blast furnace connected pipe approaches (2).
  • the coolant lines (2, 3, 4) of the cooling plate (1) are used as separate cooling circuits to the cooling system connected to the blast furnace.
  • Fig. 2 shows a section through the cooling plate (1) the vertically arranged coolant lines (2, 3, 4) on the inner wall (5) with webs (7) and grooves (8) and on the outer wall (6) with a recess (12) are provided, in which a trunnion (11) of the blast furnace (10) engages.
  • Fig. 3 shows a longitudinal section through a cooling plate (1) Intended for use in an arc furnace is provided.
  • the coolant lines (3, 4) are arranged in a serpentine shape and have only two copper pipe lugs (2) for the supply or removal of the cooling water.
  • the copper pipes (3) and copper pipe bends (4) are before Casting of the cooling plate has been welded together, the same applies to the two copper pipe approaches (2).
  • Fig. 4 shows a cross section through a cooling plate (1), the inner wall (5) of which is a flat surface (9) having.
  • the cooling water supply or cooling water discharge through the coolant lines (3, 4) takes place over two Copper pipe lugs (2) on the outer wall (6) are attached and connected to the cooling water circuit of the Arc furnace can be connected.
  • FIG. 5 and 6 show longitudinal sections through two cooling plates (1) compared to the embodiment according to FIG. 1 with vertical (13) and horizontal side flanges (14) or according to FIG. 6 only with vertical Side flanges (13) are equipped.
  • Both cooling plates (1) have four vertically inside arranged cooling pipes (2, 3, 4) and recesses (12) on the outer wall (6).

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)
  • Blast Furnaces (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
EP97110960A 1996-07-05 1997-07-02 Kühlplatte für metallurgische Öfen der Eisen- und Stahlindustrie Expired - Lifetime EP0816515B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29611704U 1996-07-05
DE29611704U DE29611704U1 (de) 1996-07-05 1996-07-05 Kühlplatte für metallurgische Öfen

Publications (2)

Publication Number Publication Date
EP0816515A1 EP0816515A1 (de) 1998-01-07
EP0816515B1 true EP0816515B1 (de) 2002-09-25

Family

ID=8026095

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97110960A Expired - Lifetime EP0816515B1 (de) 1996-07-05 1997-07-02 Kühlplatte für metallurgische Öfen der Eisen- und Stahlindustrie

Country Status (5)

Country Link
US (1) US5904893A (ja)
EP (1) EP0816515B1 (ja)
JP (1) JP3045086U (ja)
CA (1) CA2209682A1 (ja)
DE (2) DE29611704U1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015001190A1 (de) 2015-01-31 2016-08-04 Karlfried Pfeifenbring Kühlelement für metallurgische Öfen sowie Verfahren zur Herstellung eines Kühlelements

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2170265C2 (ru) * 1997-01-08 2001-07-10 Поль Вурт С.А. Способ изготовления холодильных плит для печей, используемых в черной металлургии
DE19727008C2 (de) * 1997-06-25 2002-05-23 Sms Demag Ag Kühlplatten für Schachtöfen
JPH11293312A (ja) * 1998-02-13 1999-10-26 Nkk Corp 冶金炉用ステーブ
LU90328B1 (de) 1998-12-16 2003-06-26 Paul Wutrh S A Kuehlplatte fuer einen Ofen zur Eisen- oder Stahlerzeugung
FI107789B (fi) * 1999-02-03 2001-10-15 Outokumpu Oy Valumuotti jäähdytyselementin valmistamiseksi ja muotissa valmistettu jäähdytyselementti
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.
DE19938917A1 (de) * 1999-08-17 2001-02-22 Km Europa Metal Ag Kühlplatte
DE19943287A1 (de) 1999-09-10 2001-03-15 Sms Demag Ag Kupferkühlplatte für metallurgische Öfen
DE10027437A1 (de) * 2000-06-02 2001-12-06 Sueddeutsche Kalkstickstoff Abkühlelement für Flüssigschmelzen
US6280681B1 (en) * 2000-06-12 2001-08-28 Macrae Allan J. Furnace-wall cooling block
LU90755B1 (en) * 2001-04-05 2002-10-07 Wurth Paul Sa Cooling plate for a metallurgical furnace and method for manufacturing such a cooling plate
FI115251B (fi) * 2002-07-31 2005-03-31 Outokumpu Oy Jäähdytyselementti
EP1391521A1 (de) * 2002-08-20 2004-02-25 Voest-Alpine Industrieanlagenbau GmbH & Co. Kühlplatte für metallurgische Öfen
DE10259870A1 (de) 2002-12-20 2004-07-01 Hundt & Weber Gmbh Kühlelement, insbesondere für Öfen, sowie Verfahren zur Herstellung eines Kühlelements
DE102004035968A1 (de) * 2004-07-23 2006-02-16 Km Europa Metal Ag Kühlplatte
DE102004035963A1 (de) * 2004-07-23 2006-02-16 Km Europa Metal Ag Kühlplatte
FI121429B (fi) * 2005-11-30 2010-11-15 Outotec Oyj Jäähdytyselementti ja menetelmä jäähdytyselementin valmistamiseksi
US7832367B2 (en) * 2007-12-05 2010-11-16 Berry Metal Company Furnace panel leak detection system
LU91455B1 (en) * 2008-06-06 2009-12-07 Wurth Paul Sa Gap-filler insert for use with cooling plates for a metallurgical furnace
BE1018523A3 (fr) * 2009-01-15 2011-03-01 Ct Rech Metallurgiques Asbl Tete de mesure de type libs pour l'analyse de composes dans un environnement poussiereux et/ou a haute temperature.
CN101634520B (zh) * 2009-05-31 2011-03-30 江苏联兴成套设备制造有限公司 铸钢冷却板的铸造方法
WO2020023169A1 (en) * 2018-07-22 2020-01-30 Macrae Technologies, Inc. High heat flux regime coolers
EP2553371B1 (en) * 2010-03-30 2014-10-15 Berry Metal Company Plate cooler stave apparatus and methods for ferrous or non-ferrous metal making furnace
US8834784B2 (en) * 2011-01-27 2014-09-16 Allan J. MacRae Thin stave cooler and support frame system
DK2639541T3 (en) 2012-03-14 2017-08-14 Alfa Laval Corp Ab HEAT TRANSMISSION PLATE
FI20195097A1 (en) 2013-12-20 2019-02-11 9282 3087 Quebec Dba Tmc Canada Metallurgical oven
DE102014215624A1 (de) 2014-08-07 2016-02-25 Sms Group Gmbh Metallurgischer Ofen und Kühlplattenelement
FI20146035A (fi) * 2014-11-25 2016-05-26 Outotec Finland Oy Menetelmä metallurgisen uunin rakentamiseksi, metallurginen uuni, ja pystysuuntainen jäähdytyselementti
AT519400B1 (de) * 2016-11-23 2019-08-15 Mettop Gmbh Verfahren zur Herstellung eines Kühlelementes
LU100107B1 (en) * 2017-02-22 2018-10-02 Wurth Paul Sa Cooling Panel for Metallurgical Furnace
CN107559256A (zh) * 2017-09-01 2018-01-09 河北华春液压汽配有限公司 液压集成阀块及其制备和应用
WO2019147920A1 (en) * 2018-01-29 2019-08-01 Berry Metal Company Stave with external manifold

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2256179A (en) * 1938-11-10 1941-09-16 Brassert & Co Shaft cooling system for blast furnaces
US3674248A (en) * 1970-10-09 1972-07-04 Jones & Laughlin Steel Corp Closed end tuyere coil
FI47052C (fi) * 1971-10-11 1973-09-10 Outokumpu Oy Menetelmä erilaisissa sulatusuuneissa käytettävien jäähdytyselementtie n valmistamiseksi.
GB1424532A (en) * 1972-03-20 1976-02-11 Brown Sons Ltd James Components using cast-in cooling tubes
JPS49118635U (ja) * 1973-02-08 1974-10-11
DE2907511C2 (de) * 1979-02-26 1986-03-20 Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover Kühlplatte für Schachtöfen, insbesondere Hochöfen, und Verfahren zur Herstellung derselben
DE2951640C2 (de) * 1979-12-21 1982-10-14 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 4200 Oberhausen Kühlplatte für einen Hüttenwerksofen, insbesondere Hochofen, und Verfahren zu ihrer Herstellung
ATE189265T1 (de) * 1994-10-07 2000-02-15 Schloemann Siemag Ag Kühlplatte für schachtöfen
DE19503912C2 (de) * 1995-02-07 1997-02-06 Gutehoffnungshuette Man Kühlplatte für Schachtöfen, insbesondere Hochöfen
ES2164183T3 (es) * 1995-05-05 2002-02-16 Sms Demag Ag Placas de refrigeracion para hornos de cuba.
DE19545048C2 (de) * 1995-05-05 2001-02-01 Sms Demag Ag Kühlplatten für Schachtöfen
DE19545984B4 (de) * 1995-12-09 2005-02-10 Sms Demag Ag Kühlplatte für Schmelzöfen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015001190A1 (de) 2015-01-31 2016-08-04 Karlfried Pfeifenbring Kühlelement für metallurgische Öfen sowie Verfahren zur Herstellung eines Kühlelements
WO2016119770A1 (de) 2015-01-31 2016-08-04 Karlfried Pfeifenbring Kühlelement für metallurgische öfen sowie verfahren zur herstellung eines kühlelements
DE102015001190B4 (de) * 2015-01-31 2016-09-01 Karlfried Pfeifenbring Kühlelement für metallurgische Öfen sowie Verfahren zur Herstellung eines Kühlelements

Also Published As

Publication number Publication date
CA2209682A1 (en) 1998-01-05
DE29611704U1 (de) 1996-10-17
US5904893A (en) 1999-05-18
JP3045086U (ja) 1998-01-23
DE59708301D1 (de) 2002-10-31
EP0816515A1 (de) 1998-01-07

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