US3843106A - Furnace - Google Patents

Furnace Download PDF

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Publication number
US3843106A
US3843106A US00351855A US35185573A US3843106A US 3843106 A US3843106 A US 3843106A US 00351855 A US00351855 A US 00351855A US 35185573 A US35185573 A US 35185573A US 3843106 A US3843106 A US 3843106A
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United States
Prior art keywords
furnace
main body
cooler
side wall
wall
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
US00351855A
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English (en)
Inventor
T Nanjyo
M Aoshika
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.)
IHI Corp
Original Assignee
IHI Corp
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
Priority claimed from JP4291272A external-priority patent/JPS529162B2/ja
Priority claimed from JP6416772U external-priority patent/JPS525939Y2/ja
Priority claimed from JP6416872U external-priority patent/JPS4922110U/ja
Priority claimed from JP1703273U external-priority patent/JPS49118635U/ja
Application filed by IHI Corp filed Critical IHI Corp
Application granted granted Critical
Publication of US3843106A publication Critical patent/US3843106A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B7/00—Heating by electric discharge
    • H05B7/02—Details
    • 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
    • F27B3/12—Working chambers or casings; Supports 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
    • 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
    • F27D2009/0018—Cooling of furnaces the cooling medium passing through a pattern of tubes
    • F27D2009/0021—Cooling of furnaces the cooling medium passing through a pattern of tubes with the parallel tube parts close to each other, e.g. a serpentine
    • 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
    • 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

  • a furnace wall is constructed with or includes coolers [52] U 8 Cl 266/43 266/32 of the type comprising a main body made of cast iron [51] F27d U12 or copper and a plurality of cooling tubes cast integral [58] Fieid B2 with the main body so that the furnace wall may be 7 cooled by cooling water flowing through the cooling tubes.
  • the present invention generally relates to a furnace.
  • the conventional steel making arc furnaces generally comprise a furnace shell made of steel plate and lined with refractory materials.
  • the service life of the refractory materials or brick is generally 200 350 heats, and the furnace bottom and the slag line are repaired with stamping materials while they are hot whenever the molten metal is removed out of the furnace.
  • the refractory brick of the furnace wall those at the hot spots which are directly exposed to the high temperature arcs have a shorter life of the order of 30 I heats.
  • the maximum allowable thickness is of the order of 9 l2 mm so that a hole is most frequentlyformed through the steel plate due to the spark between the steel plate and scrap in the melting stage and cooling water leaks through the hole.
  • the jacket type cooler is made of thin steel plates which are welded together.
  • the inner surface of the cooler is generally flat so that it is difficult for splash to adhere to the surface.
  • the surface is directly exposed to the arcs so that a large quantity of cooling water is required and the heat flux density is increased to the order of 600,000 Kcal/m h. Therefore the thermal efficiency of the furnaceis remarkably reduced and the life of the cooler is also decreased.
  • One of the objects of the present invention is therefore to provide a furnace whose furnace wall has a long life and which may improve the furnace operation efficiency thereby reducing the operational cost.
  • Another object of the present invention is to provide a furnace whose furnace wall may be prevented from being locally damaged so that its life may be increased.
  • Another object of the present invention is to provide a furnace in which all of the furnace wall may be cooled so that the life of the furnace wall may become semipermanent, thus resulting in the reduction in time required for maintenance and repair.
  • Another object of the present invention is to provide a furnace in which the hot spots of the furnace wall are spacedapart from the electrodes as far as possible so that scrap may be uniformly melted and the damages to the furnace wall may be made uniform.
  • Another object of the present invention is to provide a furnace in which a furnace roof may be made small in size and light in weight so that the quantity of brick required for the construction of the furnace roof may be minimized, thus resulting in the reduction in cost.
  • Another object of the present invention is to provide a furnace which are constructed with coolers which have a long service life and whose thermal loss is less so that the life of the furnace wall may be increased.
  • a furnace comprises a hearth constructed by the conventional method with refractory brick and stamping material and a furnace wall constructed with coolers each comprising a main body made of cast iron or copper and a length of cooling tube cast with the main body.
  • the lowermost coolers are spaced apart from the surface of molten steel by a length of 200 500 mm so that the adhesion of molten steel to the surfaces of the coolers may be prevented.
  • the service life of the furnace wall may be increased by cooling it with water, and the water-tightness of the furnace wall may be ensured. More particularly cooling water flows through the cooling tubes in the coolers so that the furnace wall may be always cooled. The abrasion and wear of the furnace wall may be minimized so that the service life may be increased and the efficiency may be remarkably improved.
  • FIG. 1 is a front view of a cooler used in the furnaces in accordance with the present invention
  • FIG. 2 is a sectional view thereof
  • FIG. 3 is a front view of another example of a cooler used in the furnaces in accordance with the present invention.
  • FIG. 4 is a sectional view thereof
  • FIG. 5 is a fragmentary sectional view of a first embodiment of a furnace in accordance with the present invention.
  • FIG. 6 is a sectional view of a second embodiment of a furnace in accordance with the present invention.
  • FIGS. 7, 8, 9 and 10 are cross sectional views of a third, fourth, fifth and sixth embodiments of the present invention.
  • coolers of the type shown in FIGS. 1-4 are used.
  • the adjacent cooling tubes are communicated with each other at their ends and the free end of the lowermost cooling tube 2 is used as an inlet 3 whereas the free end of the uppermost cooling tube 2 is used as an outlet 3:
  • the inner surface of the cooler I is corrugated as best shown'in FIGS. 5 and 6 in such a manner that the portion corresponding to the cooling tubeis converged outwardly.
  • a cooling block or cooler I is substantially similar in construction to that shown in FIGS. 1 and 2 except that a plurality of refractorybrick 5 are cast integral with the main body 1 of the cooler l in vertically spaced apart relation in such a manner that their ends may be exposed at the inner surface of the main body 1'.
  • the water leakage as well as the decrease in thermal efficiency may be mine the average temperature of the atmosphere in the furnace and the combined coefficient by conduction,
  • the cooler I has the corrugated inner surface and the outwardly diverging portion is formed coaxially of the cooling tube so that the uniform cooling effectmay be attained. Therefore the crack due to the thermal stresses which in turn are caused by the difference in temperature in the cooler may be prevented. Even if the crack is started the water leakage may be prevented because the cooling tubes are cast integral with the main body. Furthermore the adhesion of splash to the corrugated inner surface 5 may be improved so that a protective wall or layer may be formed. Therefore the thermal loss and the decrease in thermal efficiency may be prevented.
  • the thickness of the cooler block I or I" must be so selected that the temperature of the inner surface is less than the melting point of the cooler and the solidification point of the molten metal in the furnace.
  • the thickness may bedetermined in the following manner. It is assumed that the cooler I be heated only by the radiation heat.
  • the heat flux density is given by q 4.88 X 10' X I (t; 273) ⁇ lKtlll/ flhl (I) the high temperature arcs (5,000 l l,000C) are produced must be further taken into consideration, and the determination of the temperature of the atmosphere'in the furnace is very complex because the thermal conditions in the are furnace vary from time to time from the ignition stage, the boring stage, the stage of forming apool of molten metal, the melting stage and the refining stage.
  • the average temperature of the atmosphere in the furnace and combined coefficient I were found to be 1,600C and 0.35 1.0 in case of the conventional arc furnace operating at a conventional'power when the thermal load is highest so that the scrap covering the furnace wall is melted and the furnace wall is exposed.
  • the combined coefficient is l.0;at the so-called hot spot which is directly exposed to the jet of the high temperature gas, but less than 1.0 at other spots. Therefore the coolers may sufficiently withstand the various thermal conditions in the furnace when the average temperature of the atmosphere in the furnace is taken as 1,600C and the combined coefficient, as l.0 when the coolers are designed.
  • the service life'of the cooler was over 1,000 heats.
  • One of the factors which contributed to the elongation of the service life is the adhesion of the molten metal and slag to the coolers. That is, the molten metal and slag having the solidification points higher than the melting point of the main body 1 of the cooler form a protective wall or layer 3-10 mm in thickness over the inner surface of the cooler I and serve to lower'the temperature at the inner surface of the cooler I so that the service life'may be increased.
  • the protective layer serves to reduce the quantity of heat passing through the cooler so that the reduction in thermal efficiency of the cooler may be prevented.
  • the heat flux density of the conventional welded-steel jacket type cooler was6 X 10 Kcallm h at the maximum while the heat flux density of the cooler I with the relatively large dimensions was 100,000 Kcal/m h. It is seen that the thermal loss of the cooler of the present invention is very small- In case of the cooler l' a plurality of brick 5 are cast integral with the main body 1' so as to extend out of the inner surface of the cooler so that the adhesion of splash to the cooler may be facilitatedand the protective layer or wall may be formed.
  • the quantity of heat passing through the cooler I may be reucked and the thermal loss may be minimized.
  • the heat flux density of the cooler I was of the order of 80,000 Kcallm h. The decrease in thermal efficiency of the furnace may be prevented and the thermal loss may be minimized so that the service life of the furnace wall may be increased. Since the cooling steel tubes 2 are cast integral with the main body 1', the problem of water leakage when the cracks are produced in the cooler may be overcome.
  • the coolers I and I used in the present invention may overcome the defects of the conventional cooler of the type having a plurality of vertically extending cooling tubes that the service life is shorter because the lower corner of the main body of the cooler which is subjected to a high thermal load is not sufficiently cooled; and the upper corner is also frequently damaged. Furthermore the coolers I and I may be used in the arc furnaces, and it is not required to lay brick in front of the cooler so that the maintenance and repair of the brick may be eliminated.
  • a cooler I of the type described with reference to FIGS. 1 and 2 is placed at the hot spot of a furnace wall 7 constructed by laying brick over a furnace bottom 6.
  • the lower end of the cooler I is spaced apart from the surface of molten metal 8 by 200 500 mm so that molten metal 8 may not contact with the cooler I.
  • the main body 1 of the cooler I is cooled by water passing through the cooling tubes 2 from the inlet 3 so that the refractory brick in Contact with the cooler I may be also cooled. Therefore the service life of the furnace wall may be increased and the efficiency of the furnace may be remarkably improved.
  • cooling tubes 2 are cast integral with the main body 1 of the cooler I, the water leakage problem may be overcome even when the cracks are produced in the cooler I. Furthermore the cooler I may prevent the local damage of the furnace wall so that the service life of the furnace may be further increased. Since the cooling tubes 2 are cast integral with the main body 1 so as to extend in the horizontal direction, the upper end of the cooler may be prevented from being damaged even when the brick are layed over the cooler I opposed to the conventional cooler.
  • cooler I In the furnace shown in FIG. 5 the cooler I is directly placed upon the bottom 6, but the cooler I' of the type shown in FIGS. 3 and 4 may be also used.
  • the furnace wall of the furnace shown in FIG. 6 is constructed with the coolers I described with reference to FIGS. 1 and 2. Like the first embodiment, the lowermost coolers I are spaced apart from the surface of molten metal 8 by 200-500 mm so that molten metal may be prevented from contacting with the coolers I.
  • the coolers I are cooled by cooling water flowing through the cooling tubes 2 from the inlet 3 so that the furnace wall may be cooled. Therefore the service life of the furnace wall may become semipermanent.
  • the coolers I may be removed from the furnace wall for maintenance and repair. Instead of the coolers I, the
  • the furnace shown in FIG. 8 has a polygonal cross sectional configuration.
  • a plurality of coolers l are re movably laid over the bottom 6 as in the case of the third embodiment in such a manner that the furnace wall in opposed relation with the electrodes 9 are moved away therefrom.
  • the furnace shown in FIG. 9 is substantially similar in construction to the furnace shown in FIG. 8 except that it has a triangular cross sectional configuration.
  • the coolers I are cooled by cooling water circulating through the cooling tubes 2 so that the furnace wall may be cooled.
  • Any damaged cooler may be removed from the furnace wall for repair or replacement, and the service life of the furnace wall may be increased.
  • the arcs are generally directed toward the furnace wall under the electromagnetic forces so that the jet flows of the high-temperature gases are blown against the furnace wall. Therefore the scrap in opposed relation with the electrodes 9 may be quickly melted so that melting is not uniform.
  • the portions of the furnace wall against which are directed the jet flows of high temperature gases are easily susceptible to damages (hot spot phenomenon), but in the embodiments shown in FIGS. 8
  • FIG. 10 Sixth Embodiment, FIG. 10
  • the furnace shown in FIG. 10 is substantially similar in construction to the furnace shown in FIG. 6 except that the top of the furnace is converged.
  • the furnace shown in FIG. 10 has the following advantages:
  • the furnace roof may be made small so that the quantity of brick required for the construction of the furnace roof may be reduced. Therefore the cost of the furnace may be reduced.
  • the capacity of the apparatus for lifting the furnace roof may be reduced.
  • the furnaces shown in FIGS. 8 and 9 may also have i a converged top portion as the furnace shown in FIG. 10, and instead of the coolers 1, any other suitable coolers such as coolers I, any other shown in FIGS. 3 and 4 may be used.
  • the present invention has been described as being applied to'a steel making arc furnace, but it will be understood that the present invention may be applied to other furances and that the'furnace in accordance with the present invention may have any suitable cross sectional configuration in addition to the hexagonal and triangular cross sectional configurations shown in FIGS. 8 and 9. Furthermore in addition to the coolers I and I described above with reference to FIGS. 1-4, any other suitable cooler may be used. In the furnaces shown in FIGS. 7-10, all of the furnace wall is constructed with the coolers, but it will be understood that the coolers may be placed only at the hot spots as the furnace shown in FIG. 5.
  • the advantages of the furnaces of the present invention may be summarized as follows: A. Since the furnace wall is constructed with the coolers having cooling tubes cast integral therewith, and the cooling water is circulating through the cooling tubes, the water leakage may be prevented, the service life of the furnace wall may be increased, and the efficiency of the furnace may be remarkably improved, thus resulting in the reduction in cost. Since the inner surface of the cooler is so improved that the splash may easily adhere to the inner surface to form a protective wall or layer, the life of the furnace wall may be increased as the life of the coolers is increased.
  • the cross sectional configuration of the furnace may be arbitrarily selected. Especially when the furnace is designed to have a polygonal cross sectional configuration so that the hot spots of the furnace wall in opposed relation with the electrodes may be spaced away from the electrodes, the scrap in the furnace'may be uniformly melted and the damage to the furnace wall may be minimized.
  • a furnace wall construction for metal heating furnaces comprising I a. a furnace bottom wall (6) containing a cavity for receiving molten metal; and b. a furnace side wall (I) supported on said bottom wall above the level of the molten metal, said side wall including 1. at least one cast metal main body (4); and 2.
  • each of said cooling tubes including horizontal portions contained in said main body, the internal surface of said main body being corrugated to define for each horizontal tube portion a convex surface arranged coaxially therewith, thereby to produce a uniform cooling effect on the side wall internal surface for permitting a protective layer of splash metal to be formed thereon.
  • each of said main bodies is so selected that the temperature at' the inner'surface of the main body is less than the melting point of the main body and the solidification point of the molten metal in the furnace.
  • each of said main'bodies includes a plurality of bricks cast integrally on the internal surface thereof, the end surfaces of said brick being exposed at the inner surfaces of the sidewall.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
US00351855A 1972-04-28 1973-04-17 Furnace Expired - Lifetime US3843106A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP4291272A JPS529162B2 (nl) 1972-04-28 1972-04-28
JP6416772U JPS525939Y2 (nl) 1972-05-30 1972-05-30
JP6416872U JPS4922110U (nl) 1972-05-30 1972-05-30
JP1703273U JPS49118635U (nl) 1973-02-08 1973-02-08

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US3843106A true US3843106A (en) 1974-10-22

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US00351855A Expired - Lifetime US3843106A (en) 1972-04-28 1973-04-17 Furnace

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US (1) US3843106A (nl)
CA (1) CA1012193A (nl)
FR (1) FR2182562A5 (nl)
GB (1) GB1432054A (nl)

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4079184A (en) * 1975-08-28 1978-03-14 Institut De Recherches De La Siderurgie Francaise (Irsid) Furnace wall element
US4097679A (en) * 1976-01-09 1978-06-27 Sankyo Special Steel Co., Ltd. Side wall of the ultra high power electric arc furnaces for steelmaking
US4119792A (en) * 1976-07-16 1978-10-10 Korf-Stahl Ag. Melting furnace
US4122295A (en) * 1976-01-17 1978-10-24 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Furnace wall structure capable of tolerating high heat load for use in electric arc furnace
FR2389088A1 (fr) * 1977-04-29 1978-11-24 Thyssen Huette Ag Element de refroidissement pour un four metallurgique
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
US4206312A (en) * 1977-12-19 1980-06-03 Sidepal S.A. Societe Industrielle De Participations Luxembourgeoise Cooled jacket for electric arc furnaces
US4207060A (en) * 1977-10-11 1980-06-10 Demag, Aktiengesellschaft Vessel for metal smelting furnace
US4221922A (en) * 1977-12-06 1980-09-09 Sanyo Special Steel Co., Ltd. Water cooled panel used in an electric furnace
US4278241A (en) * 1980-07-18 1981-07-14 Chicago Bridge & Iron Company Top cone cooling system for basic oxygen furnace
EP0037679A1 (en) * 1980-03-28 1981-10-14 Westley Brothers Limited Coolant conduits incorporated in castings
FR2516547A1 (fr) * 1981-11-13 1983-05-20 Menendez Juan Reacteur pour la recuperation du zinc contenu dans les ribblons, residus et mattes de ce metal
US4423513A (en) * 1982-06-28 1983-12-27 Deere & Company Furnace panel for use in an arc furnace
US4458351A (en) * 1981-04-06 1984-07-03 Richards Raymond E Membrane cooling system for metallurgical furnace
US4630281A (en) * 1984-07-05 1986-12-16 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Arc furnace with variable capacity
US5040773A (en) * 1989-08-29 1991-08-20 Ribbon Technology Corporation Method and apparatus for temperature-controlled skull melting
US5299225A (en) * 1992-05-20 1994-03-29 Sigri Great Lakes Carbon Corp. Graphitization furnace
WO1997020183A1 (fr) * 1995-11-27 1997-06-05 Aktsionernoe Obschestvo 'tekhnoliga' Procede de refroidissement de four de fusion et four de fusion permettant la mise oeuvre de ce procede
DE19545984A1 (de) * 1995-12-09 1997-06-12 Gutehoffnungshuette Man Kühlplatte für Schmelzöfen
US5741349A (en) * 1995-10-19 1998-04-21 Steel Technology Corporation Refractory lining system for high wear area of high temperature reaction vessel
EP1069389A1 (en) * 1999-02-03 2001-01-17 Nippon Steel Corporation Water-cooling panel for furnace wall and furnace cover of arc furnace
US6536360B2 (en) * 2001-08-17 2003-03-25 Air Burners, Llc Heat recovery system and method of heat recovery and reuse for a portable incineration apparatus
WO2004106831A1 (de) * 2003-05-27 2004-12-09 Maerz-Ofenbau Ag Prozessbehälter mit kühlelementen
CN102958214A (zh) * 2012-08-09 2013-03-06 汕头华兴冶金设备股份有限公司 矿热炉的保护屏
EP2460895A3 (de) * 2010-12-06 2017-07-26 SMS group GmbH Metallurgisches Gefäß, insbesondere Elektrolichtbogenofen
US10301208B2 (en) * 2016-08-25 2019-05-28 Johns Manville Continuous flow submerged combustion melter cooling wall panels, submerged combustion melters, and methods of using same

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2131137A (en) * 1982-12-02 1984-06-13 Brown & Sons Ltd James Cooler for a furnace
FR2552105B1 (fr) * 1983-09-21 1988-10-28 Usinor Perfectionnement aux plaques de refroidissement pour hauts-fourneaux
DE4420450C2 (de) * 1994-06-10 1996-05-15 Thermoselect Ag Kühlbare Zustellung für einen Hochtemperatur-Vergasungsreaktor
KR101349229B1 (ko) * 2006-05-18 2014-01-09 테크놀라지칼 리소시스 피티와이. 리미티드. 직접 제련 용기 및 그를 위한 냉각기
CN102705847B (zh) * 2012-06-20 2015-07-15 汕头华兴冶金设备股份有限公司 电炉烟道

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4079184A (en) * 1975-08-28 1978-03-14 Institut De Recherches De La Siderurgie Francaise (Irsid) Furnace wall element
US4097679A (en) * 1976-01-09 1978-06-27 Sankyo Special Steel Co., Ltd. Side wall of the ultra high power electric arc furnaces for steelmaking
US4122295A (en) * 1976-01-17 1978-10-24 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Furnace wall structure capable of tolerating high heat load for use in electric arc furnace
US4119792A (en) * 1976-07-16 1978-10-10 Korf-Stahl Ag. Melting 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
FR2389088A1 (fr) * 1977-04-29 1978-11-24 Thyssen Huette Ag Element de refroidissement pour un four metallurgique
US4207060A (en) * 1977-10-11 1980-06-10 Demag, Aktiengesellschaft Vessel for metal smelting furnace
US4221922A (en) * 1977-12-06 1980-09-09 Sanyo Special Steel Co., Ltd. Water cooled panel used in an electric furnace
US4206312A (en) * 1977-12-19 1980-06-03 Sidepal S.A. Societe Industrielle De Participations Luxembourgeoise Cooled jacket for electric arc furnaces
EP0037679A1 (en) * 1980-03-28 1981-10-14 Westley Brothers Limited Coolant conduits incorporated in castings
US4278241A (en) * 1980-07-18 1981-07-14 Chicago Bridge & Iron Company Top cone cooling system for basic oxygen furnace
US4458351A (en) * 1981-04-06 1984-07-03 Richards Raymond E Membrane cooling system for metallurgical furnace
FR2516547A1 (fr) * 1981-11-13 1983-05-20 Menendez Juan Reacteur pour la recuperation du zinc contenu dans les ribblons, residus et mattes de ce metal
US4456230A (en) * 1981-11-13 1984-06-26 Menendez Juan Blas S Apparatus for the separation of metallic zinc from residues containing zinc
US4423513A (en) * 1982-06-28 1983-12-27 Deere & Company Furnace panel for use in an arc furnace
EP0098720A2 (en) * 1982-06-28 1984-01-18 Deere & Company A furnace panel for use in an arc furnace
EP0098720A3 (en) * 1982-06-28 1984-02-22 Deere & Company A furnace panel for use in an arc furnace
US4630281A (en) * 1984-07-05 1986-12-16 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Arc furnace with variable capacity
US5040773A (en) * 1989-08-29 1991-08-20 Ribbon Technology Corporation Method and apparatus for temperature-controlled skull melting
US5299225A (en) * 1992-05-20 1994-03-29 Sigri Great Lakes Carbon Corp. Graphitization furnace
US5741349A (en) * 1995-10-19 1998-04-21 Steel Technology Corporation Refractory lining system for high wear area of high temperature reaction vessel
WO1997020183A1 (fr) * 1995-11-27 1997-06-05 Aktsionernoe Obschestvo 'tekhnoliga' Procede de refroidissement de four de fusion et four de fusion permettant la mise oeuvre de ce procede
DE19545984B4 (de) * 1995-12-09 2005-02-10 Sms Demag Ag Kühlplatte für Schmelzöfen
DE19545984A1 (de) * 1995-12-09 1997-06-12 Gutehoffnungshuette Man Kühlplatte für Schmelzöfen
EP1069389A1 (en) * 1999-02-03 2001-01-17 Nippon Steel Corporation Water-cooling panel for furnace wall and furnace cover of arc furnace
EP1069389A4 (en) * 1999-02-03 2001-04-25 Nippon Steel Corp WATER COOLING PANEL FOR OVEN WALL AND ARC OVEN COVER
US6404799B1 (en) 1999-02-03 2002-06-11 Nippon Steel Corporation Water-cooling panel for furnace wall and furnace cover of arc furnace
US6536360B2 (en) * 2001-08-17 2003-03-25 Air Burners, Llc Heat recovery system and method of heat recovery and reuse for a portable incineration apparatus
WO2004106831A1 (de) * 2003-05-27 2004-12-09 Maerz-Ofenbau Ag Prozessbehälter mit kühlelementen
US20060285572A1 (en) * 2003-05-27 2006-12-21 Andreas Loebner Process container with cooling elements
US7544321B2 (en) 2003-05-27 2009-06-09 Maerz-Ofenbau Ag Process container with cooling elements
EP2460895A3 (de) * 2010-12-06 2017-07-26 SMS group GmbH Metallurgisches Gefäß, insbesondere Elektrolichtbogenofen
CN102958214A (zh) * 2012-08-09 2013-03-06 汕头华兴冶金设备股份有限公司 矿热炉的保护屏
CN102958214B (zh) * 2012-08-09 2015-08-05 汕头华兴冶金设备股份有限公司 矿热炉的保护屏
US10301208B2 (en) * 2016-08-25 2019-05-28 Johns Manville Continuous flow submerged combustion melter cooling wall panels, submerged combustion melters, and methods of using same
US11396470B2 (en) 2016-08-25 2022-07-26 Johns Manville Continuous flow submerged combustion melter cooling wall panels, submerged combustion melters, and methods of using same

Also Published As

Publication number Publication date
FR2182562A5 (nl) 1973-12-07
CA1012193A (en) 1977-06-14
GB1432054A (en) 1976-04-14

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