EP1600717A1 - 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
- EP1600717A1 EP1600717A1 EP05011000A EP05011000A EP1600717A1 EP 1600717 A1 EP1600717 A1 EP 1600717A1 EP 05011000 A EP05011000 A EP 05011000A EP 05011000 A EP05011000 A EP 05011000A EP 1600717 A1 EP1600717 A1 EP 1600717A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plate
- copper
- cooling
- copper alloy
- frame plate
- 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.)
- Granted
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 33
- 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 23
- 229910000881 Cu alloy Inorganic materials 0.000 claims abstract description 23
- 239000010949 copper Substances 0.000 claims abstract description 23
- 229910052802 copper Inorganic materials 0.000 claims abstract description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 6
- 229910052742 iron Inorganic materials 0.000 claims abstract description 6
- 239000010959 steel Substances 0.000 claims abstract description 6
- 239000002826 coolant Substances 0.000 claims description 18
- 239000012528 membrane Substances 0.000 claims description 3
- 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
- 238000012546 transfer Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 description 4
- 230000035882 stress Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 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
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 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 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
- 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 an electric arc furnace or a shaft furnace, the hot furnace atmosphere is exposed, with a on the hot side forming the heat transfer Layer of copper or copper alloy and on the cold side of trough-shaped Cooling channels formed by the coolant and are guided on the Cold side connected to a coolant supply and a coolant outlet are.
- Such heatsinks replace the formerly common ff lining from around the mid - 1970s and form wall elements in box shape with coolant baffles in the box Inside and with different forms of slag holders on the hot side.
- box-shaped wall elements were replaced by tubular structures.
- the tubes arranged vertically in a so-called tube-to-tube construction, however after a short time was generally replaced by a horizontal arrangement.
- This design had the advantage of mechanical stability, but also the disadvantages high pressure drops and the need to install slag holders, the have only a limited life and often the starting point for cracks in the pipes.
- Such exposed to the hot furnace atmosphere wall elements have only one limited lifespan and are often affected by damage.
- the damage can be divided into cracks on the tube surface, damage by scrap (when charging an electric arc furnace) Damage caused by arcing and spark erosion, damage from oxygen and damage to back plates.
- the initially described heat sink is known from DE 100 00 987 A1.
- the heat sink is made of a forged or rolled ingot of copper manufactured and the cooling channels are formed by trough-shaped rolled products.
- Raw block uneconomical in view of its material costs.
- the resistant increasing power requirements lead to increasing heat loads of the Cold plates inside by tensile stresses and on the outside wall by Compressive stresses are claimed.
- the material-specific Stress limits When exceeding the material-specific Stress limits, the material is plastically deformed, whereby cracks and in severe cases damage the heat sink.
- From DE 29 07 511 C2 is also a full copper or a copper alloy machined heat sink with vertical blind holes by mechanical Deep drilling made.
- the material costs and processing are corresponding uneconomical.
- the invention is based on the object, a claimable design with to create economically inexpensive to produce components, while copper or to save copper alloy and achieve a long service life.
- the stated object is achieved in that one of the hot side assigned, in its thickness determinable plate or frame plate made of copper or Copper alloy, closed by a permanently elastic seal, wherein a plurality of trough-shaped, arranged parallel to each other Longitudinal profiles either in the thickness of the plate or the frame plate or in the permanently elastic sealing are provided as cooling channels and that the Plate or frame plate with one of iron or steel materials, the cold side forming cover plate is tightly connected.
- the variety of trough-shaped longitudinal profiles causes a planar more uniform dissipation of heat to the cooling medium. The load capacity of the heat sink is higher overall.
- the elastic seal consists of thermally conductive Plastic, heat-resistant rubber or a metal membrane.
- the Sealing limited according to the invention the cooling channel or more cooling channels and is thereby cooled by the coolant itself. For this reason, there is one Protection against heat stress, so that such elastic materials permanently can be used.
- the ratio of the wall thicknesses of the cover plate to the plate of copper or copper alloy is equal to or less than 1.
- a relatively thin cover plate or a corresponding claimable cover plate arises from the fact that the cover plate by means of outwardly projecting Ribs is reinforced.
- cover plate with the plate or the frame plate made of copper or a copper alloy welded to the outer circumference are.
- the permanent elastic seal is provided by ribs, that of the plate or the frame plate made of copper or a copper alloy, the cooling channels from the Form long profiles.
- the seal itself can be stiffened and the Elasticity of the seal is permanently maintained.
- the cooling channels in the cover plate and / or the seal can be used as ribs in the Cross section form a triangular shape, a semicircular shape or a trapezoidal shape. in the general are here polygonal or round cross-sectional or cross-sectional mixing forms 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 Outbuildings.
- the heat sink 1 is shown vertically. He can also be horizontal or be installed at an angle.
- On the hot side 2 (right) is the Layer 3 of copper or copper alloy.
- 3a is a variety of individual Cooling channels 4 formed with smaller flow cross sections for a coolant 5, which usually consists of water. In a variety of cooling channels are these are formed from long profiles 4a (FIGS. 2A-5B).
- the long sections 4a are located on the cold side 6 (left), on the also a coolant supply line 7 and a coolant discharge 8 are connected, which lead the coolant 5 in the circuit.
- the plate 9 or the frame plate 9a carries the heat to the individual cooling channels 4, which consist of the plurality of trough-shaped, parallel juxtaposed long sections 4a.
- a cooling channel 4 either a cavity 19 (FIG. 3A) of the long profile 4a or an auxiliary space 20 formed by two adjacent long profiles 4a can be used as flow channels.
- the plate 9 or the frame plate 9a are by a permanently elastic seal 10 closed, wherein on the cold side 6 one of iron or steel materials 11 existing 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 by means Screws 12a are connected.
- the ratio of the wall thicknesses of the cover plate 12th to the plate 9 or frame plate 9a made of copper or copper alloy is the same or less than 1.0.
- the permanently elastic seal 10 is made of thermally conductive plastic, heat-resistant rubber or a metal membrane.
- the cover plate 12 (Fig. 1) by means of outward be reinforced protruding ribs 13.
- On the hot side 2 are usually Provided (unspecified) grooves, if necessary, after completion of assembly the application of refractory ramming 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 to catch the inevitable melting spatter.
- Fig. 2A except for the layer 3, copper or copper alloy is on the hot side 2, the plate 9 and the frame plate 9a can be seen, and the permanently elastic Seal 10, which in a first embodiment, a plurality of cooling channels 15 forms (FIG. 2B), each between two cross-sectional triangular shapes 16 arise.
- the permanently elastic seal 10 is approximately as a "mat" in one piece executed and is simply inserted into the frame plate 9a and by means of the cover plate 12 closed. In the event that the cooling channels 15 in the plate 9 or the frame plate 9a are provided, the permanently elastic seal 10th also be smooth and flat.
- FIG. 3A shows a second alternative embodiment of the heat sink 1, being on the hot side 2 within the layer 3 of copper or copper alloy in Form of the frame plate 9 a recess is provided, in turn as Matt the permanently elastic seal 10 with a variety of long products 4a inserted and by means of the cover plate 12 made of iron or steel materials 11th and screws 12 is attached.
- This embodiment sees hollow longitudinal profiles 4a before, so that between each two longitudinal profiles 4a coolant through an adjoining room 20 forward and back flow through the cavity 19 of the long sections 4a can.
- longitudinal profiles 4a are located in the recess of the frame plate 9a with a semicircular shape 17 in cross section and form between two long profiles 4a a cooling channel 15.
- the long sections 4a form connecting webs again the permanently elastic sealing as a mat.
- the bases are the flow channels 15 can be seen.
- FIGS. 5A and 5B A fourth alternative is shown in FIGS. 5A and 5B: the long profiles 4a have Trapezoidal shape 18 in cross section, again between each two long profiles 4a a cooling channel 15 for the flow and the interior of the trapezoidal mold 18 for the Return of the coolant (or vice versa) can be connected.
- Heatsink 1 which takes up little space and easy to install.
Abstract
Description
Die Erfindung betrifft einen Kühlkörper , insbesondere für die Wände des Oberofens eines Elektrolichtbogenofens oder eines Schachtofens, der der heißen Ofenatmosphäre 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-Zuführung und eine Kühlmittel-Ableitung angeschlossen sind.The invention relates to a heat sink, in particular for the walls of the upper furnace an electric arc furnace or a shaft furnace, the hot furnace atmosphere is exposed, with a on the hot side forming the heat transfer Layer of copper or copper alloy and on the cold side of trough-shaped Cooling channels formed by the coolant and are guided on the Cold side connected to a coolant supply and a coolant outlet are.
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 around the mid - 1970s and form wall elements in box shape with coolant baffles in the box 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 were the tubes arranged vertically in a so-called tube-to-tube construction, however after a short time was generally replaced by a horizontal arrangement. This design had the advantage of mechanical stability, but also the disadvantages high pressure drops and the need to install slag holders, the have only a limited life and often the starting point for cracks in the pipes.
Seit etwa 1990 baut eine Fachfirma ihre Wandelemente in der sog. Rohr-Spalt-Rohr-Bauweise. Die Rohre liegen horizontal und die Strömungsumkehrungen werden durch gegossene Rohrbögen gebildet. Diese Wandelemente haben keine Schlakkenhalter, weil sich das ff-Spritzmaterial in den Spalten zwischen den Rohren fest halten kann. Darüberhinaus ist der Druckverlust in dieser Art Wandelemente erheblich geringer.Since about 1990, a specialist company builds their wall elements in the so-called pipe-gap-pipe construction. The tubes are horizontal and the flow reversals become formed by cast pipe bends. These wall elements have no Schlakkenhalter, because the ff-spray material stuck in the gaps between the pipes can hold. Moreover, the pressure loss in this type of wall elements is significant 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 only one limited lifespan and are often affected by damage. The damage can be divided into cracks on the tube surface, damage by scrap (when charging an electric arc furnace) Damage caused by arcing and spark erosion, damage from oxygen and damage to back plates.
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 as well Wall panels can be used in blast furnaces.
Der eingangs bezeichnete Kühlkörper ist aus der DE 100 00 987 A1 bekannt. Dieser Kühlkörper ist jedoch aus einem geschmiedeten oder gewalzten Rohblock aus Kupfer gefertigt und die Kühlkanäle sind durch muldenförmige Walzprodukte gebildet. Von dieser Ausbildung abgesehen, ist der aus Kupfer oder Kupferlegierung bestehende Rohblock unwirtschaftlich in Anbetracht seiner Werkstoffkosten. Die beständig steigenden Leistungsanforderungen führen zu steigenden Wärmebelastungen der Kühlplatten, die im Inneren durch Zugspannungen und an der Außenwand durch Druckspannungen beansprucht sind. Bei Überschreitung der werkstoffspezifischen Spannungsgrenzen wird der Werkstoff plastisch verformt, wodurch Risse und in schweren Fällen eine Beschädigung des Kühlkörpers entstehen.The initially described heat sink is known from DE 100 00 987 A1. This However, the heat sink is made of a forged or rolled ingot of copper manufactured and the cooling channels are formed by trough-shaped rolled products. Apart from this training, which is made of copper or copper alloy Raw block uneconomical in view of its material costs. The resistant increasing power requirements lead to increasing heat loads of the Cold plates inside by tensile stresses and on the outside wall by Compressive stresses are claimed. When exceeding the material-specific Stress limits, the material is plastically deformed, whereby cracks and in severe cases damage the heat sink.
Aus der DE 29 07 511 C2 ist ein ebenfalls voll aus Kupfer oder einer Kupferlegierung gearbeiteter Kühlkörper mit vertikal verlaufenden Sackbohrungen durch mechanisches Tiefbohren hergestellt. Die Werkstoffkosten und die Bearbeitung sind entsprechend unwirtschaftlich. From DE 29 07 511 C2 is also a full copper or a copper alloy machined heat sink with vertical blind holes by mechanical Deep drilling made. The material costs and processing are corresponding uneconomical.
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 is based on the object, a claimable design with to create economically inexpensive to produce components, while copper or to save copper alloy and achieve a long service life.
Die gestellte Aufgabe wird erfindungsgemäß dadurch gelöst, dass 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, parallel nebeneinander angeordneten Längsprofile entweder in der Dicke der Platte oder der Rahmenplatte oder in der dauerhaft elastischen Abdichtung als Kühlkanäle vorgesehen sind und dass die Platte oder Rahmenplatte mit einer aus Eisen- oder Stahlwerkstoffen bestehenden, die Kaltseite bildenden Abdeckplatte dicht verbindbar ist. 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 höher.The stated object is achieved in that one of the hot side assigned, in its thickness determinable plate or frame plate made of copper or Copper alloy, closed by a permanently elastic seal, wherein a plurality of trough-shaped, arranged parallel to each other Longitudinal profiles either in the thickness of the plate or the frame plate or in the permanently elastic sealing are provided as cooling channels and that the Plate or frame plate with one of iron or steel materials, the cold side forming cover plate is tightly connected. This will only be a minor Share of copper or copper alloy material needed and the much lower stressed part on the cold side can be made of inexpensive material become. The variety of trough-shaped longitudinal profiles causes a planar more uniform dissipation of heat to the cooling medium. The load capacity of the heat sink is higher overall.
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 Materiallen dauerhaft eingesetzt werden können.In an embodiment of the invention, the elastic seal consists of thermally conductive Plastic, heat-resistant rubber or a metal membrane. The Sealing limited according to the invention the cooling channel or more cooling channels and is thereby cooled by the coolant itself. For this reason, there is one Protection against heat stress, so that such elastic materials permanently can be used.
Eine Weiterbildung besteht darin, dass das Verhältnis der Wanddicken der Abdeckplatte zu der Platte aus Kupfer oder Kupferlegierung gleich oder kleiner 1 ist. A further development is that the ratio of the wall thicknesses of the cover plate to the plate 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 corresponding claimable cover plate arises from the fact that the cover plate by means of outwardly projecting Ribs is reinforced.
Weitere Merkmale sind dadurch gegeben, dass die Abdeckplatte mit der Platte oder der Rahmenplatte aus Kupfer oder einer Kupferlegierung am Außenumfang verschweißt sind.Other features are given by the fact that the cover plate with the plate or the frame plate made of copper or a copper alloy welded to the outer circumference are.
Eine andere Verbesserung der Erfindung wird dadurch geschaffen, dass die dauerhaft elastische Abdichtung mittels 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.Another improvement of the invention is provided by the permanent elastic seal is provided by ribs, that of the plate or the frame plate made of copper or a copper alloy, the cooling channels from the Form long profiles. As a result, the seal itself can be stiffened and the Elasticity of the seal is permanently maintained.
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 be used as ribs in the Cross section form a triangular shape, a semicircular shape or a trapezoidal shape. in the general are here polygonal or round cross-sectional or cross-sectional mixing forms 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 Outbuildings.
In der Zeichnung sind Ausführungsbeispiele der Erfindung dargestellt, die nachstehend näher erläutert werden.In the drawings, embodiments of the invention are shown below be explained in more detail.
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 in Fig. 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
- FIG. 2A is a plan view of the seal in the sectional plane AB shown in FIG. 2A;
- Fig. 3A
- a cross section as Fig. 2A as a second alternative embodiment with triangular in cross-section, hollow cooling channels
- Fig. 3B
- the belonging to Fig. 3A top view of the seal
- Fig. 4A
- a cross section as Fig. 2A as a third alternative embodiment with a semi-circular cross-section full long profiles
- Fig. 4B
- 4A is a plan view of the seal,
- Fig. 5A
- a cross-section as FIG. 2A as a fourth alternative embodiment with trapezoidal in cross-section hollow long profiles and
- Fig. 5B
- the corresponding to Fig. 5A top view in the designated section plane.
Gemäß Fig. 1 ist der Kühlkörper 1 senkrecht dargestellt. Er kann aber auch waagerecht
oder schräg eingebaut sein. Auf der Heißseite 2 (rechts) befindet sich die
Schicht 3 aus Kupfer oder Kupferlegierung. Im Inneren 3a ist eine Vielzahl von einzelnen
Kühlkanälen 4 mit kleineren Strömungsquerschnitten für ein Kühlmittel 5 gebildet,
das gewöhnlich aus Wasser besteht. Bei einer Vielzahl von Kühlkanälen sind
diese aus Langprofilen 4a (Fig. 2A - 5B) gebildet. Die Langprofile 4a befinden sich
auf der Kaltseite 6 (links), auf der auch eine Kühlmittel-Zuleitung 7 und eine Kühlmittel-Ableitung
8 angeschlossen sind, die das Kühlmittel 5 im Kreislauf führen.According to Fig. 1, the
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 (Fig. 3A) des Langprofils 4a
oder ein durch zwei nebeneinander liegende Langprofile 4a gebildeter Nebenraum
20 als Strömungskanäle genutzt werden.The
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 (Fig. 1) mittels nach außen
vorstehenden Rippen 13 verstärkt sein. Auf der Heißseite 2 sind üblicherweise
(nicht näher bezeichnete) Nuten vorgesehen, die ggfs. nach Abschluss der Montage
das Auftragen feuerfester Stampf- oder Spritzmassen bei Anwendung des Kühlkörpers
1 in einem Schachtofen erleichtern sollen oder bei Anwendung des Kühlkörpers
1 für einen Elektrolichtbogenofen die unvermeidlichen Schmelzenspritzer abfangen.For stiffening and fastening, the cover plate 12 (Fig. 1) by means of outward
be reinforced protruding
In der Fig. 2A ist außer der Schicht 3 aus Kupfer oder Kupferlegierung auf der Heißseite
2 die Platte 9 bzw. die Rahmenplatte 9a ersichtlich, sowie die dauerhaft elastische
Abdichtung 10, die in einer ersten Ausführungsform eine Vielzahl von Kühlkanälen
15 bildet (Fig. 2B), die jeweils zwischen zwei Querschnitts-Dreiecksformen 16
entstehen. Die dauerhaft elastische Abdichtung 10 ist etwa als "Matte" einstückig
ausgeführt und wird einfach in die Rahmenplatte 9a eingelegt und mittels der Abdeckplatte
12 verschlossen. Für den Fall, dass die Kühlkanäle 15 in der Platte 9 oder
der Rahmenplatte 9a vorgesehen sind, kann die dauerhaft elastische Abdichtung 10
auch glatt und flach ausgeführt sein.In Fig. 2A, except for the
In der Fig. 3A ist eine zweite alternative Ausführungsform des Kühlkörpers 1 gezeigt,
wobei auf der Heißseite 2 innerhalb der Schicht 3 aus Kupfer oder Kupferlegierung in
Form der Rahmenplatte 9a eine Ausnehmung vorgesehen ist, in der wiederum als
Matte die dauerhaft elastische Abdichtung 10 mit einer Vielzahl von Langprodukten
4a eingelegt und mittels der Abdeckplatte 12 aus Eisen- oder Stahlwerkstoffen 11
und Schrauben 12 befestigt ist. Diese Ausführungsform sieht hohle Längsprofile 4a
vor, so dass zwischen jeweils zwei Längsprofilen 4a Kühlmittel durch einen Nebenraum
20 vorwärts und durch den Hohlraum 19 der Langprofile 4a zurück strömen
kann.FIG. 3A shows a second alternative embodiment of the
Gemäß Fig. 4A befinden sich Längsprofile 4a in der Ausnehmung der Rahmenplatte
9a mit einer Halbkreisform 17 im Querschnitt und bilden zwischen jeweils zwei Langprofilen
4a einen Kühlkanal 15. Die Langprofile 4a bilden über verbindende Stege
wiederum die dauerhaft elastische Abdichtung als Matte. In Fig. 4B sind die Grundflächen
der Strömungskanäle 15 ersichtlich.According to FIG. 4A,
Eine vierte Alternative geht aus den Fig. 5A und 5B hervor: Die Langprofile 4a besitzen
Trapezform 18 im Querschnitt, wobei wiederum zwischen jeweils zwei Langprofilen
4a ein Kühlkanal 15 für den Vorlauf und das Innere der Trapezform 18 für den
Rücklauf des Kühlmittels (oder umgekehrt) verbunden werden kann.A fourth alternative is shown in FIGS. 5A and 5B: the
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 compact arises
- 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 (8)
dadurch gekennzeichnet, dass eine der Heißseite (2) zugeordnete, in ihrer Dicke bestimmbare Platte (9) oder Rahmenplatte (9a) aus Kupfer oder Kupferlegierung mittels einer dauerhaft elastischen Abdichtung (10) verschlossen ist, wobei eine Vielzahl von muldenförmigen, parallelen, nebeneinander angeordneten Längsprofilen (4a) entweder in der Dicke der Platte (9) oder der Rahmenplatte (9a) oder in der dauerhaft elastischen Abdichtung (10) als Kühlkanäle (4) vorgesehen sind und dass die Platte (9) oder die Rahmenplatte (9a) mit einer aus Eisen- oder Stahlwerkstoffen (11) bestehenden, die Kaltseite (6) bildenden Abdeckplatte (12) dicht verbindbar ist.Heat sink (1), in particular for the walls of the top furnace of an electric arc furnace or a shaft furnace, which is exposed to the hot Ofenatmoshäre, with a on the hot side (2) the heat transfer forming layer (3) of copper or copper alloy and on the cold side (6) formed from trough-shaped products cooling channels (4) through which the coolant (5) are guided and which are connected on the cold side (6) to a coolant supply line (7) and a coolant discharge line (8),
characterized in that one of the hot side (2) associated, in its thickness determinable plate (9) or frame plate (9a) made of copper or copper alloy is closed by means of a permanently elastic seal (10), wherein a plurality of trough-shaped, parallel, juxtaposed Longitudinal profiles (4a) either in the thickness of the plate (9) or the frame plate (9a) or in the permanently elastic seal (10) as cooling channels (4) are provided and that the plate (9) or the frame plate (9a) with a made of iron or steel materials (11), the cold side (6) forming the cover plate (12) is tightly connected.
dadurch gekennzeichnet, dass die dauerhaft elastische Abdichtung (10) aus wärmeleitendem Kunststoff, wärmebeständigem Gummi oder aus einer Metallmembrane besteht. Cooling plate according to claim 1,
characterized in that the permanently elastic seal (10) consists of thermally conductive plastic, heat-resistant rubber or a metal membrane.
dadurch gekennzeichnet, dass das Verhältnis der Wanddicken der Abdeckplatte (12) zu der Platte (9) aus Kupfer oder Kupferlegierung gleich oder kleiner 1 ist.Cooling plate according to one of claims 1 and 2,
characterized in that the ratio of the wall thicknesses of the cover plate (12) to the copper or copper alloy plate (9) is equal to or less than 1.
dadurch gekennzeichnet, dass die Abdeckplatte (12) mittels nach außen vorstehenden Rippen (13) verstärkt ist.Cooling plate according to one of claims 1 to 3,
characterized in that the cover plate (12) is reinforced by means of outwardly projecting ribs (13).
dadurch gekennzeichnet, dass die Abdeckplatte (12) mit der Platte (9) oder der Rahmenplatte (9b) aus Kupfer oder einer Kupferlegierung am Außenumfang (9b) verschweißt ist.Cooling plate according to one of claims 1 to 4,
characterized in that the cover plate (12) is welded to the plate (9) or the frame plate (9b) made of copper or a copper alloy on the outer circumference (9b).
dadurch gekennzeichnet, dass die elastische Abdichtung (10) mittels Rippen (14) versehen ist, die der Platte (9) oder der Rahmenplatte (9b) zugewandt, die Kühlkanäle (15) aus den Längsprofilen (4a) bilden.Cooling plate according to one of claims 1 to 5,
characterized in that the elastic seal (10) is provided by means of ribs (14) facing the plate (9) or the frame plate (9b) forming the cooling channels (15) from the longitudinal profiles (4a).
dadurch gekennzeichnet, dass die Rippen (14) im Querschnitt eine Dreiecksform (16), eine Halbkreisform (17) oder eine Trapezform (18) bilden. Cooling plate according to claim 6,
characterized in that the ribs (14) in cross section form a triangular shape (16), a semicircular shape (17) or a trapezoidal shape (18).
dadurch gekennzeichnet, dass entweder der Hohlraum (19) innerhalb der Dreiecksform (16), der Halbkreisform (17) oder der Trapezform (18) die Kühlkanäle (15) bilden oder die jeweils zwischen zwei Rippen (14) liegenden Nebenräume (20).Cooling plate according to claim 6,
characterized in that either the cavity (19) within the triangular shape (16), the semicircular shape (17) or the trapezoidal shape (18) form the cooling channels (15) or each between two ribs (14) lying adjacent rooms (20).
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 true EP1600717A1 (en) | 2005-11-30 |
EP1600717B1 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) |
Families Citing this family (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 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4221922A (en) * | 1977-12-06 | 1980-09-09 | Sanyo Special Steel Co., Ltd. | Water cooled panel used in an electric furnace |
EP1077358A1 (en) * | 1999-08-18 | 2001-02-21 | KM Europa Metal Aktiengesellschaft | 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 AT AT05011000T patent/ATE426788T1/en active
- 2005-05-20 EP EP05011000A patent/EP1600717B1/en not_active Not-in-force
- 2005-05-20 DE DE502005006922T patent/DE502005006922D1/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4221922A (en) * | 1977-12-06 | 1980-09-09 | Sanyo Special Steel Co., Ltd. | Water cooled panel used in an electric furnace |
EP1077358A1 (en) * | 1999-08-18 | 2001-02-21 | KM Europa Metal Aktiengesellschaft | Cooling element |
DE10027437A1 (en) * | 2000-06-02 | 2001-12-06 | Sueddeutsche Kalkstickstoff | Cooling element for liquid melts |
Also Published As
Publication number | Publication date |
---|---|
EP1600717B1 (en) | 2009-03-25 |
DE502005006922D1 (en) | 2009-05-07 |
DE102004032026A1 (en) | 2005-12-15 |
ATE426788T1 (en) | 2009-04-15 |
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