US20110088871A1 - Cooling Element for Cooling the Fireproof Lining of a Metallurgical Furnace (AC,DC) - Google Patents

Cooling Element for Cooling the Fireproof Lining of a Metallurgical Furnace (AC,DC) Download PDF

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Publication number
US20110088871A1
US20110088871A1 US12/866,516 US86651609A US2011088871A1 US 20110088871 A1 US20110088871 A1 US 20110088871A1 US 86651609 A US86651609 A US 86651609A US 2011088871 A1 US2011088871 A1 US 2011088871A1
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US
United States
Prior art keywords
cooling
heat
plate
cooling element
element according
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.)
Abandoned
Application number
US12/866,516
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English (en)
Inventor
Roland König
Rolf Degel
Hartmut Schmieden
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.)
SMS Siemag AG
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SMS 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 Siemag AG filed Critical SMS Siemag AG
Assigned to SMS SIEMAG AG reassignment SMS SIEMAG AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DEGEL, ROLF, SCHMIEDEN, HARTMUT, KOENIG, ROLAND
Publication of US20110088871A1 publication Critical patent/US20110088871A1/en
Abandoned legal-status Critical Current

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    • 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
    • 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

Definitions

  • the invention is directed to a cooling element for cooling the refractory lining of a metallurgical furnace.
  • EP 887 428 A1 and DE 10 2004 035 968 A1 disclose cooling elements comprising a plate made of copper or a copper alloy that faces the refractory lining of a metallurgical furnace, such as a blast furnace, and which is provided in its interior with channels for guiding coolant.
  • Cooling elements of the type mentioned above have the disadvantage that the coolant, generally water, flows through the parts facing the interior of the furnace and, in the event of malfunctions or leakage, water can enter the interior of the furnace. This entails considerable risk.
  • a cooling plate that faces the refractory lining and, a heat-conducting plate, which is arranged at an angle to the refractory lining, is fixedly connected to the cooling plate and extends out of the furnace wall, the cooling plate and the heat-conducting plate are made of solid material, and a coolant channel is fixedly connected to the heat-conducting plate and which is connected to a coolant input and a coolant output.
  • the cooling plate, the heat-conducting plate and the coolant channel are made of highly heat-conductive material, e.g., copper or a copper alloy, and the coolant channel advantageously extends along a narrow side of the heat-conducting plate.
  • the cooling element can comprise one or more of rolled, forged, and cast copper plates with a fine-grained structure for good heat conductivity.
  • two solid copper plates of this kind can be welded together (connected in a thermally conductive manner) or bent to form a T-profile or L-profile.
  • the end of the welded-on copper plate is also welded to a copper pipe serving as a coolant channel.
  • This copper pipe is cooled by cooling water and, by way of the connected cooling plates, provides sufficient cooling of the brick lining of the furnace vessel located in the installation area.
  • the dimensions, quantity per unit of area, cooling circuit and the distances between the heat-conducting plates projecting out of the furnace vessel are calculated and determined in accordance with the required heat removal.
  • the cooling elements are outfitted with corresponding measuring instruments for monitoring the temperature/heat removal curve.
  • the cooling elements can be installed at any position of the furnace vessel such as roof, side wall, or base, either horizontally or vertically between the brick lining and the steel wall of the vessel or roof or base.
  • These cooling devices are preferably arranged in the lower and/or middle area of the vessel side wall typically referred to as a metal/slag liquid area and abutment, skewback area or, in case of DC furnaces, also in the gas area, between the refractory lining and the steel plating of the furnace vessel.
  • the arrangement of the cooling elements in the abutment area of the brick lining does not impair the reinforcement of the furnace vessel arranged at that location.
  • the cooling elements can be connected to the furnace vessel by screws or the like. A heat-conducting contact mass is tamped between the cooling elements and the brick lining.
  • the cooling elements admit cooling water through the copper pipes welded on the outside.
  • the water-cooled parts of the cooling elements are arranged outside the furnace vessel. Therefore, in case of leaks, no water can enter the furnace and endanger furnace operation.
  • a plurality of cooling elements are connected together in series to form a cooling circuit. However, the individual positioning is selected in such a way that in the event of failure of a cooling circuit the areas located next to it continue to be cooled indirectly.
  • the cooling elements should preferably be connected to closed cooling circuits.
  • the cooling elements can also be connected to them if the quality of the cooling water and the floating contents are within the specified tolerances (quality).
  • cooling elements according to the invention can be summarized as follows: improvement by achieving a perfectly dry furnace vessel; improved heat removal compared to spray cooling and cascade cooling; and is usable in areas where the static requirements for the furnace vessel must be maintained.
  • the amount of heat carried off by the cooling elements is sufficient to prevent damage to the affected structural component parts and to cool down the inner side facing the process in such a way that solidified, cooled or non-reactive product forms a self-protection.
  • cooling elements are not in direct contact with the process or with the product either slag or metal, and can easily be combined with other copper cooling systems that are not located in the statically important areas of the furnace vessel.
  • These cooling elements are particularly suitable for hard-to-reach locations at the furnace vessel, especially also in the bottom of a rectangular vessel, where an open spray cooling was formerly resorted to out of necessity. They can be used in AC/DC reduction furnaces with a rectangular furnace vessel and round furnace vessel. In the latter case, they are especially advantageous because the statics and/or stability of the furnace vessel are not impaired by the type, shape or installation position.
  • FIG. 1 is a perspective view of the cooling element
  • FIG. 2 is the arrangement of the cooling element in a furnace wall
  • FIG. 3 is the arrangement in a round furnace vessel
  • FIG. 4 is the arrangement in a rectangular furnace vessel combined with other systems.
  • the cooling element comprises a cooling plate 1 , a heat-conducting plate 2 and a coolant channel 3 connected thereto.
  • Coolant Channel 3 has a coolant input 4 and a coolant output 5 .
  • these parts are all made of copper or an appropriate copper alloy.
  • FIG. 2 shows that the cooling plate 1 is located directly between the outer casing of a metallurgical vessel 6 and the refractory lining 7 facing the interior of the furnace. It is preferably embedded in a heat-conducting contact mass 8 formed by tamping.
  • cooling plates 1 and the heat-conducting plates 2 and coolant channel 3 are shown installed, by way of example, in a round furnace vessel in FIG. 3 and in a rectangular furnace vessel in FIG. 4 , other cooling element systems also being indicated in the drawing.

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  • 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 Housings, Linings, Walls, And Ceilings (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Blast Furnaces (AREA)
  • Furnace Details (AREA)
US12/866,516 2008-02-08 2009-01-21 Cooling Element for Cooling the Fireproof Lining of a Metallurgical Furnace (AC,DC) Abandoned US20110088871A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102008008477A DE102008008477A1 (de) 2008-02-08 2008-02-08 Kühlelement zur Kühlung der feuerfesten Auskleidung eines metallurgischen Ofens (AC,DC)
DE102008008477.8 2008-02-08
PCT/DE2009/000078 WO2009097832A1 (de) 2008-02-08 2009-01-21 Kühlelement zur kühlung der feuerfesten auskleidung eines metallurgischen ofens (ac, dc)

Publications (1)

Publication Number Publication Date
US20110088871A1 true US20110088871A1 (en) 2011-04-21

Family

ID=40585483

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/866,516 Abandoned US20110088871A1 (en) 2008-02-08 2009-01-21 Cooling Element for Cooling the Fireproof Lining of a Metallurgical Furnace (AC,DC)

Country Status (14)

Country Link
US (1) US20110088871A1 (de)
EP (1) EP2255140B8 (de)
JP (1) JP2011511257A (de)
KR (1) KR20100098578A (de)
CN (1) CN102089608A (de)
AT (1) ATE521862T1 (de)
CA (1) CA2714467A1 (de)
DE (1) DE102008008477A1 (de)
ES (1) ES2368615T3 (de)
RU (1) RU2452912C2 (de)
TW (1) TWI375780B (de)
UA (1) UA94559C2 (de)
WO (1) WO2009097832A1 (de)
ZA (1) ZA201005207B (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5747286B2 (ja) * 2011-11-17 2015-07-15 株式会社日向製錬所 三相交流電極式円形電気炉の冷却方法及びその三相交流電極式円形電気炉
EP3055633B1 (de) 2013-10-08 2019-03-20 Hatch Ltd. Ofenkühlsystem mit wärmeleitenden verbindungen zwischen kühlelementen

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3799524A (en) * 1971-07-05 1974-03-26 Fives Lille Cail Cooling arrangement for a converter vessel wall
US3849587A (en) * 1973-10-15 1974-11-19 Hatch Ass Ltd Cooling devices for protecting refractory linings of furnaces
US4787605A (en) * 1986-10-03 1988-11-29 Hoogovens Groep B.V. Coolable furnace wall structure
US5785517A (en) * 1994-02-16 1998-07-28 The University Of Melbourne Cooling arrangements for refractory wall linings

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2620509C2 (de) * 1976-05-08 1978-04-20 Didier-Werke Ag, 6200 Wiesbaden Feuerfester Bauteil oder Formkörper
JPS5688098U (de) * 1979-12-12 1981-07-14
FR2654438B1 (fr) * 1989-11-14 1994-04-01 Chavanne Ketin Plaques de refroidissement pour hauts-fourneaux et installation de refroidissement mettant en óoeuvre ce type de plaques.
DE19727008C2 (de) * 1997-06-25 2002-05-23 Sms Demag Ag Kühlplatten für Schachtöfen
JP3397113B2 (ja) * 1997-12-26 2003-04-14 日本鋼管株式会社 竪型冶金炉用の炉体構造部材
DE19943287A1 (de) * 1999-09-10 2001-03-15 Sms Demag Ag Kupferkühlplatte für metallurgische Öfen
FI112534B (fi) * 2000-03-21 2003-12-15 Outokumpu Oy Menetelmä jäähdytyselementin valmistamiseksi ja jäähdytyselementti
FI115251B (fi) * 2002-07-31 2005-03-31 Outokumpu Oy Jäähdytyselementti
RU2204611C1 (ru) * 2002-10-14 2003-05-20 ОАО Челябинский металлургический комбинат "МЕЧЕЛ" Медный плитовый холодильник доменной печи
MY144669A (en) * 2004-02-04 2011-10-31 Tech Resources Pty Ltd Metallurgical vessel
DE102004035968A1 (de) 2004-07-23 2006-02-16 Km Europa Metal Ag Kühlplatte
JP2007093166A (ja) * 2005-09-30 2007-04-12 Tdk Corp 焼成炉

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3799524A (en) * 1971-07-05 1974-03-26 Fives Lille Cail Cooling arrangement for a converter vessel wall
US3849587A (en) * 1973-10-15 1974-11-19 Hatch Ass Ltd Cooling devices for protecting refractory linings of furnaces
US4787605A (en) * 1986-10-03 1988-11-29 Hoogovens Groep B.V. Coolable furnace wall structure
US5785517A (en) * 1994-02-16 1998-07-28 The University Of Melbourne Cooling arrangements for refractory wall linings

Also Published As

Publication number Publication date
WO2009097832A1 (de) 2009-08-13
EP2255140B8 (de) 2012-02-08
EP2255140A1 (de) 2010-12-01
JP2011511257A (ja) 2011-04-07
DE102008008477A1 (de) 2009-08-13
EP2255140B1 (de) 2011-08-24
TWI375780B (en) 2012-11-01
TW200942758A (en) 2009-10-16
ATE521862T1 (de) 2011-09-15
CA2714467A1 (en) 2009-08-13
ZA201005207B (en) 2011-07-27
CN102089608A (zh) 2011-06-08
ES2368615T3 (es) 2011-11-18
RU2452912C2 (ru) 2012-06-10
UA94559C2 (ru) 2011-05-10
RU2010137321A (ru) 2012-03-20
KR20100098578A (ko) 2010-09-07

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Legal Events

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AS Assignment

Owner name: SMS SIEMAG AG, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KOENIG, ROLAND;DEGEL, ROLF;SCHMIEDEN, HARTMUT;SIGNING DATES FROM 20101119 TO 20101123;REEL/FRAME:025487/0973

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO PAY ISSUE FEE