EP1077358A1 - Elément de refroidissement - Google Patents

Elément de refroidissement Download PDF

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Publication number
EP1077358A1
EP1077358A1 EP00117133A EP00117133A EP1077358A1 EP 1077358 A1 EP1077358 A1 EP 1077358A1 EP 00117133 A EP00117133 A EP 00117133A EP 00117133 A EP00117133 A EP 00117133A EP 1077358 A1 EP1077358 A1 EP 1077358A1
Authority
EP
European Patent Office
Prior art keywords
plate
cooling
cover plate
cooling element
coolant
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.)
Withdrawn
Application number
EP00117133A
Other languages
German (de)
English (en)
Inventor
Thomas Dipl-Ing. Rolf
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.)
KM Europa Metal AG
Original Assignee
KM Europa Metal 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 KM Europa Metal AG filed Critical KM Europa Metal AG
Publication of EP1077358A1 publication Critical patent/EP1077358A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • H05B7/12—Arrangements for cooling, sealing or protecting electrodes
    • 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

Definitions

  • the invention relates to a cooling element for shaft and melting furnaces and a cooling element for an electric melting furnace as an integral part of an electrode holder a support device holding an electrode.
  • Shaft and melting furnaces are interchangeable for thermal insulation inner metal cladding on which insulating materials such as Chamotte can be attached. Those prevailing within shaft and smelting furnaces However, temperatures are so high that additional cooling of the Cladding is required to prevent the cooling elements from softening.
  • cooling pipes in cast iron, plate-like cooling elements pour in. This has the disadvantage that a surrounding the cooling tubes Oxide layer or an air gap make the heat transfer to the coolant difficult can.
  • cast iron cooling elements have a relatively low thermal conductivity.
  • DE 29 07 511 C2 discloses a cooling element for shaft furnaces made of copper or a low-alloy copper alloy consists of a forged or rolled copper block. At This type of coolant channels are created by mechanical deep drilling inside the cooling element. The blind holes drilled in the cooling element are sealed by soldering or welding in threaded plugs. On the back of the cooling element there are inlet bores to the coolant channels, in the nozzle required for the coolant supply or coolant discharge are welded or soldered.
  • cooling elements for electric melting furnaces have different types Recesses on, through the additional burner or lances above the melt in the melting furnaces can be introduced.
  • the coolant channels must therefore be on these openings are passed, which means an additional manufacturing effort brings with it. Any deviation of a coolant channel from a straight line can only can be achieved with various cross holes or millings, which then in turn have to be closed by plugs or lids. The manufacturing effort such cooling elements is therefore high.
  • coolant channels also count by mechanically removing material in a cooling plate and the cover the channel line thus formed with a cover plate.
  • the cover plate be tightly fixed to the cooling plate.
  • a welding of cooling plates and cover plates made of copper or copper alloys to form a cooling element is difficult and required due to the high thermal conductivity of the materials Appropriate specialists, particularly in the case of on-site repairs, only rarely Cases are available.
  • the invention is based on the object Cooling element for shaft and melting furnaces as well as for an electric melting furnace Integrated component of an electrode holder to improve manufacturing technology.
  • the invention solves the problem by the in the characterizing parts of the claims 1 or 2 specified characteristics.
  • the cooling element according to the invention for shaft and melting furnaces comprises one Cooling plate made of copper or a copper compound and a cohesive with the Cooling plate connected cover plate, with coolant channels in the cooling plate Formation of a continuous channel line with at least one coolant inlet and at least one coolant drain are arranged.
  • the cover plate is there here made of steel or a steel alloy and is insoluble by the action of pressure connected to the cooling plate.
  • the cooling elements in the form of so-called contact jaws can also have integrated components an electrode holder of a support device holding an electrode be (claim 2).
  • the cooling plates of the contact jaws contacting the electrode made of copper or a copper alloy are also cohesive Exposure to pressure connected to steel or steel alloy cover plates.
  • Explosive plating is particularly suitable for plating (claim 3).
  • the cover plate is placed on the cooling plate and covered with an explosive. This is ignited so that a progressing over the surface Detonation front that forms the cover plate towards the cooling plate accelerates.
  • By cladding with a steel cover plate on the back of the cooling plate is a significantly higher and more flat material composite than achieved when welding. Leaks during the operation of the Cooling elements are almost impossible.
  • the course of the coolant channels is arbitrary can be designed, especially if the coolant channels, as claimed 4 provided by mechanical removal of material in the cooling plate are introduced. Elaborate deep drilling and milling, which are closed with plugs must therefore be eliminated.
  • the coolant channels also in the cover plate are introduced. This can be done with a suitable tool in one Operation.
  • the coolant channels are then not covered by the cover plate, but from a side of the cover plate facing away from the cooling plate and closed with the cover plate integrally connected holding plate (Claim 5).
  • the integral connection can also be done by soldering be realized by welding (claim 6).
  • the holding plate as well as the cover plate made of steel or a steel alloy.
  • the overall strength of the Cooling element increased by the steel holding plate and the cover plate, whereby especially when used in arc furnaces with strongly fluctuating thermal stress caused by creep caused by the Cooling element can be minimized.
  • steel-to-steel welding is that it is the weld surrounding material is not heated very much and it is possible according to the invention is to incorporate sealing elements between the cover plate and the holding plate. However, this is only useful if the coolant channels and the cooling plate as well as the cover plate and finally from the holding plate are covered.
  • the cover plate only has the function of a carrier material, that facilitates the integral connection with the holding plate. All steel-steel weldings are also particularly easy to use on site Personnel repairable.
  • the coolant inlet comprises and the coolant drain pipe socket made of steel or a steel alloy. Pipe sockets made of this material are particularly simple with the cover plate or to connect the holding plate.
  • the suspensions can also be made using a steel cover plate or holding plate designed to fix the cooling element in the shaft or melting furnace made of steel be, whereby a stable attachment is possible.
  • FIGS 1 and 2 show a cooling element 1, the replaceable component of a not shown shaft or smelting furnace. Because of the easy The cooling element has a funnel-shaped design of a shaft or melting furnace 1 a contour narrowing towards its lower end 2.
  • the In principle, cooling element 1 consists of two metallic plates: one inside of the shaft and melting furnace facing cooling plate 3 made of copper or Copper alloy and one on its back 4 integrally with the cooling plate 1 connected cover plate 5 made of steel or a steel alloy.
  • each channel strand has 8, 9 a coolant inlet 10 and a coolant outlet 11 at its ends are 5 pipe sockets on the back 12 of the cover plate 5 facing away from the cooling plate 3 13, 14 made of steel or a steel alloy by welding.
  • the Pipe socket 13, 14 can also be screwed to the cooling element 1 his.
  • Cooling plate 3 On the inside of the shaft or melting furnace side 16 of the Cooling plate 3 are horizontally extending, parallel grooves 17 arranged with a dovetail cross section. In the grooves 17 can refractory material (see FIG. 6) can be attached. In addition, find slag splashes in the grooves 17 secure hold, whereby the cooling element 1 an additional Insulation experiences.
  • FIGS. 3 and 4 show a further embodiment of a cooling element 1a.
  • the cooling element 1 a has a rectangular recess 18 on a long side 19.
  • the recess 18 serves for the introduction of lances or additional burners into the interior of a shaft or Smelting furnace.
  • coolant channels also run in this variant 6a, 7a meandering in the rear 4a of the cooling plate 3a and form channel strands 8a, 9a.
  • the course of the coolant strand deviates 9a of the course of the coolant line that is otherwise configured in mirror image 8a.
  • the cover plate 5a a holding plate 20 made of steel or a steel alloy is arranged which is welded to the cover plate 5a on the circumferential side.
  • the coolant channels 6a, 7a also penetrate the cover plate 5a and are covered by the Holding plate 20 closed on the back.
  • additional fuses are in the distance to the weld 21 sealing elements 22 between the cover plate 5a and Holding plate 20 arranged.
  • the coolant inlet 10a or coolant outlet 11a are in turn through pipe sockets 13a, 14a realized, which are attached to the back 23 of the holding plate 20.
  • a cooling element 1b has only a single continuous coolant line 25, the coolant inlet 10b and the coolant outlet 11b in the central region of the cooling element 1b are arranged.
  • the channel line 25 is fluidic designed particularly cheap, because straight lengths 24, 26, 27 over arcuate sections 28 are connected.
  • the cooling element 1b in turn comprises a cover plate plated on the cooling plate 3b 5b, both of which are traversed by the coolant line 25.
  • a holding plate 20b closes the coolant line 25 at the rear and is in turn with a pipe socket 13b, 14b for the coolant inlet 10b or coolant outlet 11b.
  • In the middle and the lower height region of the holding plate 20b are hook-shaped on their rear side 23b Fasteners 15b welded, via which the cooling element 1b can be fixed to the wall of a shaft or melting furnace.
  • Figure 7 shows an enlarged view of the detail Z of Figure 6.
  • the on the cooling plate 3b clad cover plate 5b is connected to the holding plate via a weld seam 21b at the edge 20b welded.
  • a sealing element 22 contacting the holding plate 20b is arranged in a groove 29 in the rear 12b of the cover plate 5b .
  • FIG. 8 shows cooling elements 30 in the form of so-called contact jaws, which are integrated Components of an electrode holder holding a cylindrical electrode 31 32 are.
  • the electrode holder 32 and the associated support device 33 are only indicated schematically here.
  • the cooling elements 30 are cylindrical in shape configures and contacts the electrode 31.
  • the cooling elements 30 are from Coolant channels 34 are traversed by a coolant inlet 35 and a Coolant drain 36 (broken lines) are fed.
  • the coolant channels 34 are introduced into a cooling plate 37 contacting the electrode 31 and closed by a cover plate 38.
  • Holding plate 40 As proposed in the embodiments according to FIGS. 3 to 7, possible.
  • a channel line 39 formed by coolant channels 34 passes through then also the cover plate 38 and is closed by the holding plate 40.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Plasma & Fusion (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Furnace Details (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
EP00117133A 1999-08-18 2000-08-10 Elément de refroidissement Withdrawn EP1077358A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19939229 1999-08-18
DE19939229A DE19939229A1 (de) 1999-08-18 1999-08-18 Kühlelement

Publications (1)

Publication Number Publication Date
EP1077358A1 true EP1077358A1 (fr) 2001-02-21

Family

ID=7918841

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00117133A Withdrawn EP1077358A1 (fr) 1999-08-18 2000-08-10 Elément de refroidissement

Country Status (4)

Country Link
EP (1) EP1077358A1 (fr)
KR (1) KR20010039829A (fr)
CN (1) CN1285498A (fr)
DE (1) DE19939229A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1600717A1 (fr) * 2004-05-26 2005-11-30 SMS Demag Aktiengesellschaft Elément de refroidissement, en particulier pour les parois d'une partie supérieure d'un four à arc ou d'un four à cuve
US7537724B2 (en) 2002-08-20 2009-05-26 Siemens Vai Metals Technologies Gmbh & Co. Cooling plate for metallurgic furnaces
US20170146295A1 (en) * 2014-06-06 2017-05-25 Paul Wurth S.A. Charging installation of a metallurgial reactor

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004035963A1 (de) * 2004-07-23 2006-02-16 Km Europa Metal Ag Kühlplatte
LU91455B1 (en) * 2008-06-06 2009-12-07 Wurth Paul Sa Gap-filler insert for use with cooling plates for a metallurgical furnace
CN101839648A (zh) * 2010-03-15 2010-09-22 中国恩菲工程技术有限公司 水套
TW201113496A (en) * 2010-12-28 2011-04-16 shu-hua Xu Modular cooling plate and method for producing the same
CN102489955A (zh) * 2011-12-06 2012-06-13 阳谷祥光铜业有限公司 一种冷却元件的制造方法以及一种冷却元件
CN112564415B (zh) * 2020-11-30 2022-08-19 泰州鸿材科技有限公司 一种用于表面贴装技术加热的马达

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1846041A (en) * 1931-06-15 1932-02-23 Ohio Ferro Alloys Corp Cooling jacket for electrodes
US3634588A (en) * 1970-05-28 1972-01-11 Toledo Engineering Co Inc Electric glass furnace
EP0025132A1 (fr) * 1979-08-25 1981-03-18 M.A.N. MASCHINENFABRIK AUGSBURG-NÜRNBERG Aktiengesellschaft Elément réfrigérant pour four métallurgique
US4306726A (en) * 1980-04-22 1981-12-22 Qit-Fer Et Titane Inc. Furnace electrode seal assembly
DE4035893C1 (en) * 1990-11-12 1992-01-30 Hampel, Heinrich, Dr., Moresnet, Be Cooling box for blast furnace - with groove for cooling medium in base, with cover attached by explosive welding to form closed channel
DE4138091A1 (de) * 1990-11-20 1992-05-21 Mitsubishi Materials Corp Rohrfoermiger wassergekuehlter mantel fuer oefen
DE29715971U1 (de) * 1996-09-23 1997-11-13 Rea Rhein Emscher Armaturen Gm Wandkühlelement für Schachtöfen
GB2331142A (en) * 1996-07-09 1999-05-12 Nippon Steel Corp Stave for cooling of blast furnace walls and method of manufacturing same
DE19806788A1 (de) * 1998-02-18 1999-08-26 Saar Metallwerke Gmbh Kühlelement für Schachtöfen, insbesondere Hochöfen
FR2775695A1 (fr) * 1998-03-05 1999-09-10 Forcast Int Plaque de refroidissement pour un four a cuve muni d'un revetement refractaire, et notamment pour haut fourneau

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1846041A (en) * 1931-06-15 1932-02-23 Ohio Ferro Alloys Corp Cooling jacket for electrodes
US3634588A (en) * 1970-05-28 1972-01-11 Toledo Engineering Co Inc Electric glass furnace
EP0025132A1 (fr) * 1979-08-25 1981-03-18 M.A.N. MASCHINENFABRIK AUGSBURG-NÜRNBERG Aktiengesellschaft Elément réfrigérant pour four métallurgique
US4306726A (en) * 1980-04-22 1981-12-22 Qit-Fer Et Titane Inc. Furnace electrode seal assembly
DE4035893C1 (en) * 1990-11-12 1992-01-30 Hampel, Heinrich, Dr., Moresnet, Be Cooling box for blast furnace - with groove for cooling medium in base, with cover attached by explosive welding to form closed channel
DE4138091A1 (de) * 1990-11-20 1992-05-21 Mitsubishi Materials Corp Rohrfoermiger wassergekuehlter mantel fuer oefen
GB2331142A (en) * 1996-07-09 1999-05-12 Nippon Steel Corp Stave for cooling of blast furnace walls and method of manufacturing same
DE29715971U1 (de) * 1996-09-23 1997-11-13 Rea Rhein Emscher Armaturen Gm Wandkühlelement für Schachtöfen
DE19806788A1 (de) * 1998-02-18 1999-08-26 Saar Metallwerke Gmbh Kühlelement für Schachtöfen, insbesondere Hochöfen
FR2775695A1 (fr) * 1998-03-05 1999-09-10 Forcast Int Plaque de refroidissement pour un four a cuve muni d'un revetement refractaire, et notamment pour haut fourneau

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7537724B2 (en) 2002-08-20 2009-05-26 Siemens Vai Metals Technologies Gmbh & Co. Cooling plate for metallurgic furnaces
EP1600717A1 (fr) * 2004-05-26 2005-11-30 SMS Demag Aktiengesellschaft Elément de refroidissement, en particulier pour les parois d'une partie supérieure d'un four à arc ou d'un four à cuve
US20170146295A1 (en) * 2014-06-06 2017-05-25 Paul Wurth S.A. Charging installation of a metallurgial reactor
US10767930B2 (en) * 2014-06-06 2020-09-08 Paul Wurth S.A. Charging installation of a metallurgical reactor

Also Published As

Publication number Publication date
DE19939229A1 (de) 2001-02-22
CN1285498A (zh) 2001-02-28
KR20010039829A (ko) 2001-05-15

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