EP1600717B1 - Cooling member, particularly for the walls of the upper part of an electric arc furnace or a shaft furnace - Google Patents
Cooling member, particularly for the walls of the upper part of an electric arc furnace or a shaft furnace Download PDFInfo
- Publication number
- EP1600717B1 EP1600717B1 EP05011000A EP05011000A EP1600717B1 EP 1600717 B1 EP1600717 B1 EP 1600717B1 EP 05011000 A EP05011000 A EP 05011000A EP 05011000 A EP05011000 A EP 05011000A EP 1600717 B1 EP1600717 B1 EP 1600717B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plate
- cooling
- copper
- copper alloy
- cooling channels
- 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.)
- Not-in-force
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 40
- 238000010891 electric arc Methods 0.000 title claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052802 copper Inorganic materials 0.000 claims abstract description 24
- 239000010949 copper Substances 0.000 claims abstract description 24
- 229910000881 Cu alloy Inorganic materials 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 7
- 239000010959 steel Substances 0.000 claims abstract description 7
- 229910052742 iron Inorganic materials 0.000 claims abstract description 6
- 239000002826 coolant Substances 0.000 claims description 21
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 2
- 241000826860 Trapezium Species 0.000 claims 2
- 230000010512 thermal transition Effects 0.000 claims 1
- 239000002893 slag Substances 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000009760 electrical discharge machining Methods 0.000 description 1
- 230000008642 heat stress Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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
-
- 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
-
- 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 specially adapted for 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; Electric arc furnaces ; Tank furnaces
- F27B3/10—Details, accessories or equipment, e.g. dust-collectors, specially adapted for 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
- 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
- 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
- F27D2009/0056—Use of high thermoconductive elements
- F27D2009/0062—Use of high thermoconductive elements made from copper or copper alloy
Definitions
- the invention relates to a heat sink, in particular for the walls of the upper furnace of an electric arc furnace or a shaft furnace, which is exposed to the hot Ofenatmosotrore, with a forming on the hot side of the heat transfer layer of copper or copper alloy and formed on the cold side of trough-shaped products cooling channels through which Coolant are guided and are connected on the cold side to a coolant supply line and a coolant discharge, wherein one of the hot side assigned, determined in thickness plate or frame plate made of copper or copper alloy is closed by means of a permanently elastic seal, wherein a plurality of trough-shaped, parallel juxtaposed longitudinal profiles are provided as cooling channels and that the plate or the frame plate with a made of iron or steel materials, the cold side forming cover plate is tightly connected.
- Such heatsinks replace the formerly common ff lining from about the mid-seventies and form wall elements in box form with coolant baffles inside and with different forms of slag holders on the hot side.
- Such exposed to the hot furnace atmosphere wall elements have a limited life and are often affected by damage.
- the damage can be classified into cracks on the pipe surface, damage from scrap impact (when charging an electric arc furnace), arcing and spark erosion damage, oxygen damage and back plate damage.
- the heat sink described at the beginning are more advantageous, which can also be used as wall panels in blast furnaces.
- the initially designated heat sink is from the DE 100 00 987 A1 known.
- this heat sink is made of a forged or rolled ingot of copper and the cooling channels are formed by trough-shaped rolled products.
- the raw block made of copper or copper alloy is uneconomical in view of its material costs.
- the constantly increasing performance requirements lead to increasing heat loads of the cooling plates, which are stressed by tensile stresses on the inside and on the outer wall by compressive stresses. If the material-specific stress limits are exceeded, the material is plastically deformed, whereby Cracks and in severe cases, damage to the heat sink arise.
- a cooling element for shaft and melting furnaces which comprises a cooling plate of copper or a copper alloy and a cohesively connected to the cooling plate cover plate, wherein coolant channels are arranged to form a continuous channel strand with at least one coolant inlet and at least one coolant outlet in the cooling plate.
- the cover plate made of steel or a steel alloy, which is inextricably linked by the action of pressure with the cooling plate and which are incorporated between the retaining plate and the cover sealing elements.
- the invention has for its object to provide a claimable design with economically inexpensive to manufacture components, while saving on copper or copper alloy and to achieve a long service life.
- the permanently elastic seal is provided with ribs, which face the plate or the frame plate of copper or a copper alloy, the cooling channels form from the long sections.
- the seal itself can be stiffened and the elasticity of the seal is maintained permanently.
- only a small proportion of the material copper or copper alloy is needed and the essential Less stressed part on the cold side can be made of inexpensive material.
- the plurality of trough-shaped longitudinal profiles causes a more uniform discharge of heat to the cooling medium.
- the load capacity of the heat sink is higher overall
- the cooling channels in the cover plate and / or the seal can form as ribs in cross section a triangular shape, a semicircular shape or a trapezoidal shape.
- ribs in cross section a triangular shape, a semicircular shape or a trapezoidal shape.
- polygonal or round cross-sectional or cross-sectional mixing molds are advantageous.
- a further embodiment be made such that either the cavity within the triangular shape, the semicircular shape or the trapezoidal form the cooling channels or each lying between two ribs side rooms.
- the elastic seal made of thermally conductive plastic, heat-resistant rubber or a metal membrane.
- the seal according to the invention limits the cooling channel or a plurality of cooling channels and is thereby cooled by means of the coolant itself. For this reason, there is a protection against heat stress, so that such elastic materials can be used permanently.
- a development is that the ratio of the wall thicknesses of the cover plate to the plate made of copper or copper alloy is equal to or less than 1.
- a relatively thin cover plate or a correspondingly load-bearing cover plate is formed by the fact that the cover plate is reinforced by means of outwardly projecting ribs.
- cover plate with the plate or the frame plate made of copper or a copper alloy are welded to the outer circumference.
- Fig. 1 the heat sink 1 is shown vertically. But it can also be installed horizontally or diagonally.
- On the hot side 2 (right) is the layer 3 of copper or copper alloy.
- a plurality of individual cooling channels 4 are formed with smaller flow cross-sections for a coolant 5, which usually consists of water.
- a plurality of cooling channels these are made of long profiles 4a (FIG. Fig. 2A - 5B ) educated.
- the long sections 4a are located on the cold side 6 (left), on which a coolant supply line 7 and a coolant discharge line 8 are connected, which lead the coolant 5 in the circuit.
- the plate 9 or the frame plate 9a carries the heat from the individual cooling channels 4, which consist of the large number of trough-shaped, parallel juxtaposed long sections 4a.
- a cooling channel 4 either a cavity 19 (FIG. Fig. 3A ) of the long section 4a or a side space 20 formed by two adjacent long sections 4a are used as flow channels.
- the plate 9 or the frame plate 9a are closed by a permanently elastic seal 10, wherein on the cold side 6 existing from iron or steel materials 11 cover plate 12 fixed to the plate 9 or the frame plate 9a, for example. On the outer circumference 9b by welding or as drawn are connected by screws 12a.
- the ratio of the wall thicknesses of the cover plate 12 to the plate 9 or frame plate 9a made of copper or copper alloy is equal to or less than 1.0.
- the permanently elastic seal 10 is made of thermally conductive plastic, heat-resistant rubber or a metal diaphragm.
- the cover plate 12 ( Fig. 1 ) be reinforced by means of outwardly projecting ribs 13.
- On the hot side 2 usually (unspecified) grooves are provided, which if necessary after completion of the assembly to facilitate the application of refractory stamping or spraying masses when using the heat sink 1 in a shaft furnace or when using the heat sink 1 for an electric arc furnace the inevitable melting spatter intercept.
- the plate 9 or the frame plate 9a can be seen, as well as the permanently elastic seal 10, which forms a multiplicity of cooling channels 15 in a first embodiment ( Fig. 2B ), each between two cross-sectional triangular shapes 16 arise.
- the permanently elastic seal 10 is designed as a "mat" as one piece and is simply inserted into the frame plate 9 a and closed by the cover plate 12. In the event that the cooling channels 15 are provided in the plate 9 or the frame plate 9a, the permanently elastic seal 10 may also be smooth and flat.
- a second alternative embodiment of the heat sink 1 is shown, wherein on the hot side 2 within the layer 3 of copper or copper alloy in the form of the frame plate 9a, a recess is provided, in turn inserted as a mat, the permanently elastic seal 10 with a plurality of long products 4a and by means of the cover plate 12 made of iron or steel materials 11 and screws 12 is attached.
- This embodiment provides hollow longitudinal profiles 4a, so that between each two longitudinal profiles 4a coolant can flow back through an adjacent room 20 forward and through the cavity 19 of the long sections 4a.
- Fig. 4A are longitudinal profiles 4a in the recess of the frame plate 9a with a semicircular shape 17 in cross section and form between each two long sections 4a a cooling channel 15.
- the long sections 4a form via connecting webs turn the permanently elastic seal as a mat.
- Fig. 4B are the base surfaces of the flow channels 15 visible.
- the long profiles 4a have a trapezoidal shape 18 in cross section, wherein again between each two long sections 4a, a cooling channel 15 for the flow and the interior of the trapezoidal shape 18 for the return of the coolant (or vice versa) can be connected.
- a flat, rectangular and compact heat sink 1 which requires little space and easy to install.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Sealing Devices (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
- Baking, Grill, Roasting (AREA)
- Cookers (AREA)
Abstract
Description
Die Erfindung betrifft einen Kühlkörper, insbesondere für die Wände des Oberofens eines Elektrolichtbogenofens oder eines Schachtofens, der der heißen Ofenatmoshäre ausgesetzt ist, mit einer auf der Heißseite den Wärmeübergang bildenden Schicht aus Kupfer oder Kupferlegierung und auf der Kaltseite aus muldenförmigen Produkten gebildeten Kühlkanälen, durch die Kühlmittel geführt sind und die auf der Kaltseite an eine Kühlmittel-Zuleitung und eine Kühlmittel-Ableitung angeschlossen sind, wobei eine der Heißseite zugeordnete, in ihrer Dicke bestimmbare Platte oder Rahmenplatte aus Kupfer oder Kupferlegierung mittels einer dauerhaft elastischen Abdichtung verschlossen ist, wobei eine Vielzahl von muldenförmigen, parallelen, nebeneinander angeordneten Längsprofilen als Kühlkanäle vorgesehen sind und dass die Platte oder die Rahmenplatte mit einer aus Eisen- oder Stahlwerkstoffen bestehenden, die Kaltseite bildenden Abdeckplatte dicht verbindbar ist.The invention relates to a heat sink, in particular for the walls of the upper furnace of an electric arc furnace or a shaft furnace, which is exposed to the hot Ofenatmoshäre, with a forming on the hot side of the heat transfer layer of copper or copper alloy and formed on the cold side of trough-shaped products cooling channels through which Coolant are guided and are connected on the cold side to a coolant supply line and a coolant discharge, wherein one of the hot side assigned, determined in thickness plate or frame plate made of copper or copper alloy is closed by means of a permanently elastic seal, wherein a plurality of trough-shaped, parallel juxtaposed longitudinal profiles are provided as cooling channels and that the plate or the frame plate with a made of iron or steel materials, the cold side forming cover plate is tightly connected.
Derartige Kühlkörper ersetzen etwa ab Mitte der 70er - Jahre die früher übliche ff-Ausmauerung und bilden Wandelemente in Kastenform mit Kühlmittel-Leitblechen im Innern und mit verschiedenen Formen von Schlackenhaltern an der Heißseite.Such heatsinks replace the formerly common ff lining from about the mid-seventies and form wall elements in box form with coolant baffles inside and with different forms of slag holders on the hot side.
Später wurden kastenförmige Wandelemente durch Rohrgebilde ersetzt. Hierbei waren die Rohre in einer sog. Rohr-an-Rohr-Bauweise senkrecht angeordnet, die jedoch nach kurzer Zeit allgemein durch eine waagerechte Anordnung abgelöst wurde. Diese Bauweise hatte den Vorteil mechanischer Stabilität, aber auch die Nachteile hoher Druckverluste und das Erfordernis des Anbringens von Schlackenhaltern, die nur eine begrenzte Lebensdauer aufweisen und häufig den Ausgangspunkt für Risse in den Rohren bildeten.Later, box-shaped wall elements were replaced by tubular structures. Here, the pipes were arranged vertically in a so-called pipe-on-pipe construction, which was, however, generally replaced by a horizontal arrangement after a short time. This design had the advantage of mechanical stability, but also the disadvantages of high pressure losses and the need to install slag holders, have a limited life and often formed the starting point for cracks in the pipes.
Seit etwa 1990 baut eine Fachfirma ihre Wandelemente in der sog. Rohr-SpaltRohr-Bauweise. Die Rohre liegen horizontal und die Strömungsumkehrungen werden durch gegossene Rohrbögen gebildet. Diese Wandelemente haben keine Schlackenhalter, weil sich das ff-Spritzmaterial in den Spalten zwischen den Rohren festhalten kann. Darüber hinaus ist der Druckverlust in dieser Art Wandelemente erheblich geringer.Since about 1990, a specialist company has been building its wall elements in the so-called pipe-gap-pipe construction method. The pipes are horizontal and the flow reversals are formed by cast pipe bends. These wall elements have no slag holders because the ff spray material can stick in the gaps between the pipes. In addition, the pressure loss in this type wall elements is considerably lower.
Solche der heißen Ofenatmosphäre ausgesetzten Wandelemente besitzen nur eine begrenzte Lebensdauer und sind häufig von Schäden betroffen. Die Schäden können eingeteilt werden in Risse an der Rohroberfläche, Schäden durch Schrottschlag (beim Chargieren eines Elektrolichtbogenofens) Schäden durch Lichtbogenüberschlag und Funkenerosion, Schäden durch Sauerstoff und Schäden an Rückenblechen.Such exposed to the hot furnace atmosphere wall elements have a limited life and are often affected by damage. The damage can be classified into cracks on the pipe surface, damage from scrap impact (when charging an electric arc furnace), arcing and spark erosion damage, oxygen damage and back plate damage.
Insofern sind die eingangs bezeichneten Kühlkörper vorteilhafter, die auch als Wandplatten in Hochöfen eingesetzt werden können.In this respect, the heat sink described at the beginning are more advantageous, which can also be used as wall panels in blast furnaces.
Der eingangs bezeichnete Kühlkörper ist aus der
Aus der
Aus der
Der Erfindung liegt die Aufgabe zugrunde, eine beanspruchungsfähige Bauform mit wirtschaftlich kostengünstig herstellbaren Bauteilen zu schaffen, dabei an Kupfer oder Kupferlegierung zu sparen und eine hohe Standzeit zu erreichen.The invention has for its object to provide a claimable design with economically inexpensive to manufacture components, while saving on copper or copper alloy and to achieve a long service life.
Die gestellte Aufgabe wird erfindungsgemäß dadurch gelöst, dass die dauerhaft elastische Abdichtung mit Rippen versehen ist, die der Platte oder der Rahmenplatte aus Kupfer oder einer Kupferlegierung zugewandt, die Kühlkanäle aus den Langprofilen bilden. Dadurch kann die Abdichtung selbst versteift werden und die Elastizität der Abdichtung bleibt dauerhaft erhalten. Dadurch wird nur ein geringer Anteil am Werkstoff Kupfer oder Kupferlegierung benötigt und der wesentlich geringer beanspruchte Teil auf der Kaltseite kann aus kostengünstigem Werkstoff hergestellt werden. Die Vielzahl der muldenförmigen Längsprofile bewirkt eine flächenhaft gleichmäßigere Ableitung der Wärme an das Kühlmedium. Die Beanspruchungsfähigkeit des Kühlkörpers ist insgesamt höherThe stated object is achieved in that the permanently elastic seal is provided with ribs, which face the plate or the frame plate of copper or a copper alloy, the cooling channels form from the long sections. As a result, the seal itself can be stiffened and the elasticity of the seal is maintained permanently. As a result, only a small proportion of the material copper or copper alloy is needed and the essential Less stressed part on the cold side can be made of inexpensive material. The plurality of trough-shaped longitudinal profiles causes a more uniform discharge of heat to the cooling medium. The load capacity of the heat sink is higher overall
Die Kühlkanäle in der Abdeckplatte und / oder der Abdichtung können als Rippen im Querschnitt eine Dreiecksform, eine Halbkreisform oder eine Trapezform bilden. Im allgemeinen sind hier polygonale oder runde Querschnitts- oder Querschnittsmischformen vorteilhaft.The cooling channels in the cover plate and / or the seal can form as ribs in cross section a triangular shape, a semicircular shape or a trapezoidal shape. In general, here polygonal or round cross-sectional or cross-sectional mixing molds are advantageous.
Dabei kann vorteilhafterweise eine weitere Ausgestaltung derart vorgenommen sein, dass entweder der Hohlraum innerhalb der Dreiecksform, der Halbkreisform oder der Trapezform die Kühlkanäle bilden oder die jeweils zwischen zwei Rippen liegenden Nebenräume.In this case, advantageously, a further embodiment be made such that either the cavity within the triangular shape, the semicircular shape or the trapezoidal form the cooling channels or each lying between two ribs side rooms.
In Ausgestaltung der Erfindung besteht die elastische Abdichtung aus wärmeleitendem Kunststoff, wärmebeständigem Gummi oder aus einer Metallmembrane. Die Abdichtung begrenzt erfindungsgemäß den Kühlkanal oder mehrere Kühlkanäle und wird dadurch mittels des Kühlmittels selbst gekühlt. Aus diesem Grund besteht ein Schutz gegen Wärmebelastung, so dass derartig elastische Materialien dauerhaft eingesetzt werden können.In an embodiment of the invention, the elastic seal made of thermally conductive plastic, heat-resistant rubber or a metal membrane. The seal according to the invention limits the cooling channel or a plurality of cooling channels and is thereby cooled by means of the coolant itself. For this reason, there is a protection against heat stress, so that such elastic materials can be used permanently.
Eine Weiterbildung besteht darin, dass das Verhältnis der Wanddicken der Abdeckplatte zu der Platte aus Kupfer oder Kupferlegierung gleich oder kleiner 1 ist.A development is that the ratio of the wall thicknesses of the cover plate to the plate made of copper or copper alloy is equal to or less than 1.
Eine relativ dünne Abdeckplatte oder eine entsprechend beanspruchungsfähige Abdeckplatte entsteht dadurch, dass die Abdeckplatte mittels nach außen vorstehenden Rippen verstärkt ist.A relatively thin cover plate or a correspondingly load-bearing cover plate is formed by the fact that the cover plate is reinforced by means of outwardly projecting ribs.
Weitere Merkmale sind dadurch gegeben, dass die Abdeckplatte mit der Platte oder der Rahmenplatte aus Kupfer oder einer Kupferlegierung am Außenumfang verschweißt sind.Further features are given by the fact that the cover plate with the plate or the frame plate made of copper or a copper alloy are welded to the outer circumference.
In der Zeichnung sind Ausführungsbeispiele der Erfindung dargestellt, die nachstehend näher erläutert werden.In the drawings, embodiments of the invention are shown, which are explained in more detail below.
Es zeigen:
- Fig. 1
- einen senkrechten Querschnitt durch einen stehenden Kühlkörper,
- Fig. 2A
- einen Querschnitt durch den Kühlkörper vor der Ebene der Abdichtung als erste Ausführungsform mit im Querschnitt dreiecksförmigen Langprofilen,
- Fig. 2B
- die zu
Fig. 2A gehörende Draufsicht auf die Abdichtung in der inFig. 2A bezeichneten Schnittebene A-B, - Fig. 3A
- einen Querschnitt wie
Fig. 2A als zweite alternative Ausführungsform mit im Querschnitt dreiecksförmigen, hohlen Kühlkanälen - Fig. 3B
- die zu
Fig. 3A gehörende Draufsicht auf die Abdichtung - Fig. 4A
- einen Querschnitt wie
Fig. 2A als dritte alternative Ausführungsform mit im Querschnitt halbkreisförmigen vollen Langprofilen - Fig. 4B
- die zu
Fig. 4A gehörende Draufsicht auf die Abdichtung, - Fig. 5A
- einen Querschnitt wie
Fig. 2A als vierte alternative Ausführungsform mit im Querschnitt trapezförmigen hohlen Langprofilen und - Fig. 5B
- die zu
Fig. 5A gehörende Draufsicht in der bezeichneten Schnittebene.
- Fig. 1
- a vertical cross section through a stationary heat sink,
- Fig. 2A
- a cross section through the heat sink in front of the plane of the seal as a first embodiment with triangular in cross-section long profiles,
- Fig. 2B
- the too
Fig. 2A Belonging top view of the seal in the inFig. 2A designated cutting plane AB, - Fig. 3A
- a cross section like
Fig. 2A as a second alternative embodiment with triangular in cross section, hollow cooling channels - Fig. 3B
- the too
Fig. 3A belonging top view of the seal - Fig. 4A
- a cross section like
Fig. 2A as a third alternative embodiment with semi-circular in cross-section full long profiles - Fig. 4B
- the too
Fig. 4A belonging top view of the seal, - Fig. 5A
- a cross section like
Fig. 2A as a fourth alternative embodiment with trapezoidal in cross-section hollow long profiles and - Fig. 5B
- the too
Fig. 5A belonging top view in the designated section plane.
Gemäß
Die auf der Heißseite 2 liegende Platte 9, die als Rahmenplatte 9a ausgeführt ist, bildet den Wärmeübergang zwischen der heißen Atmosphäre des Lichtbogenofens oder des Schachtofens und ist deshalb aus Kupfer oder einer Kupferlegierung ausgeführt. Die Platte 9 oder die Rahmenplatte 9a führt die Wärme an die einzelnen Kühlkanäle 4 ab, die aus der Vielzahl von muldenförmigen, parallel nebeneinander angeordneten Langprofilen 4a bestehen.
Dabei kann als Kühlkanal 4 entweder ein Hohlraum 19 (
In this case, as a
Die Platte 9 oder die Rahmenplatte 9a werden durch eine dauerhaft elastische Abdichtung 10 verschlossen, wobei auf der Kaltseite 6 eine aus Eisen- oder Stahlwerkstoffen 11 bestehende Abdeckplatte 12 fest mit der Platte 9 oder der Rahmenplatte 9a bspw. am Außenumfang 9b durch Schweißen oder wie gezeichnet mittels Schrauben 12a verbunden sind. Das Verhältnis der Wanddicken der Abdeckplatte 12 zu der Platte 9 oder Rahmenplatte 9a aus Kupfer oder Kupferlegierung ist gleich oder kleiner 1,0.The
Die dauerhaft elastische Abdichtung 10 besteht aus wärmeleitendem Kunststoff, wärmebeständigem Gummi oder aus einer Metallmembrane.The permanently
Zur Versteifung und Befestigung kann die Abdeckplatte 12 (
In der
In der
Gemäß
Eine vierte Alternative geht aus den
In allen Ausführungsformen entsteht ein flacher, rechteckförmiger und kompakter Kühlkörper 1, der wenig Raum beansprucht und leicht einzubauen ist.In all embodiments, a flat, rectangular and
- 11
- Kühlkörperheatsink
- 22
- Heißseitehot side
- 33
- Schicht aus Kupfer oder KupferlegierungLayer of copper or copper alloy
- 3a3a
- Inneres des KühlkörpersHeart of the heat sink
- 44
- Kühlkanalcooling channel
- 4a4a
- Langprofillong profile
- 55
- Kühlmittelcoolant
- 66
- Kaltseitecold side
- 77
- Kühlmittel-ZuleitungCoolant feed line
- 88th
- Kühlmittel- AbleitungCoolant discharge
- 99
- Platte aus Kupfer oder KupferlegierungPlate made of copper or copper alloy
- 9a9a
- Rahmenplatteframe plate
- 9b9b
- Außenumfangouter periphery
- 1010
- elastische Abdichtungelastic sealing
- 1111
- Eisen- oder Stahl-WerkstoffIron or steel material
- 1212
- Abdeckplattecover
- 12a12a
- Schraubenscrew
- 1313
- Rippen an der AbdeckplatteRibs on the cover plate
- 1414
- Rippen an der elastischen AbdichtungRibs on the elastic seal
- 1515
- Kühlkanalcooling channel
- 1616
- Dreiecksformtriangular shape
- 1717
- HalbkreisformSemicircular shape
- 1818
- Trapezformtrapezoidal shape
- 1919
- Hohlraumcavity
- 2020
- NebenraumOutbuildings
Claims (7)
- Cooling body (1), particularly for the walls of the upper furnace of an electric arc furnace or of a shaft furnace, which is exposed to the hot furnace atmosphere, with a layer (3), which forms the thermal transition, of copper or copper alloy on the hot side (2) and cooling channels (4), which are on the cold side (6) and formed from trough-shaped products and through which the coolant (5) is guided, the cooling channels being connected on the cold side (6) with a coolant feed duct (7) and a coolant discharge duct (8), wherein a plate (9) or frame plate (9a), which is associated with the hot side (2) and definable in its thickness, of copper or copper alloy is closed by means of a permanently resilient seal (10), wherein a plurality of trough-shaped, parallel longitudinal profile members (4a) arranged adjacent to one another is provided as cooling channels (4) and that the plate (9) or the frame plate (9a) is sealingly connectible with a cover plate (12) consisting of iron or steel materials (11) and forming the cold side, characterised in that the resilient seal (10) is provided with ribs (14) which face the plate (9) or frame plate (9b) and form the cooling channels (15) from the longitudinal profile members (4a).
- Cooling plate according to claim 1, characterised in that the ribs (4) form a triangular shape (16), a semicircular shape (17) or a trapezium shape (18) in cross-section.
- Cooling plate according to claim 1, characterised in that the cavity (19) within the triangular shape (16), the semicircular shape (17) or the trapezium shape (18) or the adjoining spaces (20) lying between each two ribs (14) forms or form the cooling channels (15).
- Cooling plate according to any one of claims 1 to 3, characterised in that the permanently resilient seal (10) consists of heat conductive plastics material, heat resistant rubber or of a metal membrane.
- Cooling plate according to any one of claims 1 to 4, characterised in that the ratio of the wall thicknesses of the cover plate (12) to the plate (9) of copper or copper alloy is equal to or less than 1.
- Cooling plate according to any one of claims 1 to 5, characterised in that the cover plate (12) is reinforced by means of outwardly protruding ribs (13).
- Cooling plate according any one of claims 1 to 6, characterised in that the cover plate (12) is welded to the plate (9) or the frame plate (9b) of copper or a copper alloy at the outer circumference (9b).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004032026 | 2004-05-26 | ||
DE102004032026A DE102004032026A1 (en) | 2004-05-26 | 2004-05-26 | Heat sink, in particular for the walls of the upper furnace of an electric arc furnace or a shaft furnace |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1600717A1 EP1600717A1 (en) | 2005-11-30 |
EP1600717B1 true EP1600717B1 (en) | 2009-03-25 |
Family
ID=34936772
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05011000A Not-in-force EP1600717B1 (en) | 2004-05-26 | 2005-05-20 | Cooling member, particularly for the walls of the upper part of an electric arc furnace or a shaft furnace |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1600717B1 (en) |
AT (1) | ATE426788T1 (en) |
DE (2) | DE102004032026A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010008481A1 (en) | 2009-09-30 | 2011-03-31 | Sms Siemag Ag | Metallurgical vessel |
DE102010008944A1 (en) | 2010-02-23 | 2011-08-25 | SMS Siemag AG, 40237 | Ladle or intermediate container for holding a liquid metal |
DE102013219682A1 (en) * | 2013-09-30 | 2015-04-02 | Siemens Vai Metals Technologies Gmbh | Vessel bottom, a metallurgical vessel formed therewith and electric arc furnace and method for its operation |
DE102013219686A1 (en) * | 2013-09-30 | 2015-04-02 | Siemens Vai Metals Technologies Gmbh | Vessel bottom, a metallurgical vessel formed therewith and electric arc furnace and method for its operation |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5832313B2 (en) * | 1977-12-06 | 1983-07-12 | 山陽特殊製鋼株式会社 | Water cooling panel for electric arc furnace |
DE19939229A1 (en) * | 1999-08-18 | 2001-02-22 | Km Europa Metal Ag | Cooling element |
DE10027437A1 (en) * | 2000-06-02 | 2001-12-06 | Sueddeutsche Kalkstickstoff | Cooling element for liquid melts |
-
2004
- 2004-05-26 DE DE102004032026A patent/DE102004032026A1/en not_active Withdrawn
-
2005
- 2005-05-20 DE DE502005006922T patent/DE502005006922D1/en active Active
- 2005-05-20 EP EP05011000A patent/EP1600717B1/en not_active Not-in-force
- 2005-05-20 AT AT05011000T patent/ATE426788T1/en active
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010008481A1 (en) | 2009-09-30 | 2011-03-31 | Sms Siemag Ag | Metallurgical vessel |
EP2312250A1 (en) | 2009-09-30 | 2011-04-20 | SMS Siemag Aktiengesellschaft | Metallurgical container |
DE102010008944A1 (en) | 2010-02-23 | 2011-08-25 | SMS Siemag AG, 40237 | Ladle or intermediate container for holding a liquid metal |
WO2011104053A1 (en) | 2010-02-23 | 2011-09-01 | Sms Siemag Ag | Foundry ladle or intermediate vessel for receiving a liquid metal, comprising an integrated measuring element for detecting the temperature and/or mechanical load |
DE102013219682A1 (en) * | 2013-09-30 | 2015-04-02 | Siemens Vai Metals Technologies Gmbh | Vessel bottom, a metallurgical vessel formed therewith and electric arc furnace and method for its operation |
DE102013219686A1 (en) * | 2013-09-30 | 2015-04-02 | Siemens Vai Metals Technologies Gmbh | Vessel bottom, a metallurgical vessel formed therewith and electric arc furnace and method for its operation |
Also Published As
Publication number | Publication date |
---|---|
DE502005006922D1 (en) | 2009-05-07 |
ATE426788T1 (en) | 2009-04-15 |
DE102004032026A1 (en) | 2005-12-15 |
EP1600717A1 (en) | 2005-11-30 |
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