EP1160531A2 - Abkühlelement für Flüssigschmelzen - Google Patents
Abkühlelement für Flüssigschmelzen Download PDFInfo
- Publication number
- EP1160531A2 EP1160531A2 EP01113315A EP01113315A EP1160531A2 EP 1160531 A2 EP1160531 A2 EP 1160531A2 EP 01113315 A EP01113315 A EP 01113315A EP 01113315 A EP01113315 A EP 01113315A EP 1160531 A2 EP1160531 A2 EP 1160531A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- cooling
- cooling element
- element according
- melt
- liquid
- 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- Withdrawn
Links
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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/4646—Cooling arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
- F28D9/0037—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the conduits for the other heat-exchange medium also being formed by paired plates touching each other
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/12—Elements constructed in the shape of a hollow panel, e.g. with channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
Definitions
- Cooling elements for liquid melts in the form of plates or troughs Units so-called “tapping snouts”, have long served All kinds of liquid melts cool down and the solidified melts or fragments thereof from the casting site into containers provided (e.g. Ladles) and / or to transport them away.
- Cooling elements made of different materials have proven particularly useful Material combinations exist and an internal intensive liquid cooling in such a way that they are usually round-shaped cooling bores or have channels inside the cooling elements in the discharge direction the impinging melt to be cooled are arranged.
- This Intensive cooling uses the high one in particular Heat transfer coefficients and mostly uses cooling liquids, such as marlothermal oils, water or molten salt, which can be closed circuit with integrated additional cooler from below into the Cooling element are introduced and then parallel to the drain or Sliding direction of the melt the cooling channels of the cooling element flow through.
- a cooling element for liquid melts with integrated Surface cooling devices in the form of several, usually round Cooling bores or channels (1), which are used to receive a Primary cooling medium (2) inside the cooling element mostly parallel are arranged to each other and in the relative pouring direction Liquid melt and / or run transversely to this, provide, in which the temperature of the material surface at the time of contact with the impinging liquid melt can be kept low and at which makes it difficult for the element material to melt.
- the invention thus relates to a cooling element for liquid melts integrated surface cooling submissions in the form of several Cooling bores or channels that hold a primary cooling medium are arranged inside the cooling element and in relative The pouring direction of the liquid melt and / or run transversely to it, which is characterized by the fact that those of the Liquid melt facing top of the cooling element several arranged parallel to one another and essentially parallel and / or transversely to the integrated cooling channels, open to the top Has longitudinal recesses for receiving a secondary cooling medium.
- the surface cooling devices are preferably in the form of several, mostly round cooling bores or channels (1), which are used to hold a Primary cooling medium (2) usually parallel in the interior of the cooling element are arranged to each other.
- the temperature of the material surface at the time of contact with the liquid melt can be kept below 400 ° C that in addition the desired difficult melting of the upper part of the Cooling element also no longer forms cracks on the surface and that the solidifying melt is targeted during cooling can be crushed, which accelerates the cooling process and what facilitates the transportation of the product.
- the principle of the cooling element according to the invention is based on the The fact that the cooling effect of the integrated cooling channels (1) through the additional and essential to the invention longitudinal depressions (3), which are open at the top of the cooling element becomes.
- Cooling elements which have one or more with the Longitudinal recesses (3) connected holes (5) for distributing the Have secondary cooling medium (4) in the longitudinal recesses (3).
- This can be done in that the bores (5) either from the Coming on the underside, supply the individual longitudinal depressions (3), or through a common main hole at the top of the Cooling element is arranged transversely to the direction of the longitudinal recesses and so out of the cooling element, the longitudinal recesses (3) with the Secondary cooling medium (4) supplied (see Fig. 1).
- the supply can the longitudinal depressions (3) with the secondary cooling medium (4) also via a Bore (5) take place, which in turn transversely to the direction of Longitudinal recesses (3) are not arranged in the cooling element, but in an attachment and therefore the secondary cooling medium is not from inside and below, but from above.
- This variant is from the present invention also includes.
- the present invention longitudinal recesses (3), which have a rectangular Have cross-section, or the groove or groove-shaped are.
- the open area of the longitudinal recesses should be larger than their respective wall surfaces.
- the course of the longitudinal depressions is responsible for the effect of the cooling element of minor importance at the top.
- the only important thing is that the longitudinal depressions are essentially the runoff or Follow the sliding direction of the liquid melt; whether this is straightforward, zigzag or happens in a serpentine shape, has no serious effects the cooling success.
- the top of the cooling element according to the present invention should advantageously be made of a material with high thermal conductivity, in particular with a value between 300 and 380 W / m ⁇ ° K, and / or a dense structure, in particular with a value between 8.8 and 9.2 kg / dm 3 , and / or low wettability with the liquid melt.
- the top surface serves, which is usually made of a copper / silver alloy consists. This is associated with very favorable heat dissipation and additional protection against erosion on the Element surface.
- the primary cooling medium (2) in the present cooling element can be without Problems with common salt melts, marlother oils but also water be used.
- the present invention preferably uses but metal melting as the primary cooling medium (2), with melting of Bismuth or its alloys are particularly preferred.
- Suitable secondary cooling media (4) are inert gases such as e.g. B. nitrogen, liquefied gases, moist gases or gas mixtures or but also fluidizable inert powders.
- inert gases such as e.g. B. nitrogen, liquefied gases, moist gases or gas mixtures or but also fluidizable inert powders.
- the number of Longitudinal recesses (3) and their arrangement based on the integrated Cooling channels (1) can be varied. So can the number of longitudinal wells correspond to or exceed the number of cooling channels; the Longitudinal depressions can be related to the cooling channels between them and / or just above it.
- the present invention contemplates Cooling element in front, which consists of an upper (6) and a lower plate (7) exists, which are preferably sealed against each other, which by a Squeeze or ring seal (8) can be done.
- the upper (6) and the lower plate (7) in the sense of a tight fit with each other be screwed, which also provides for the invention.
- the advantage of this Design can be seen in particular in the fact that the integrated cooling channels (1) in contrast to drilling from a full block, incorporated more easily can be, and that for the two plates different Materials (ideally with different thermal conductivity) can be used, which in turn also the invention considered.
- a variant of the cooling element has also proven particularly useful the integrated cooling channels (1) in the area of the connecting screws (9) have an annular groove (9a) between the upper (6) and lower plate (7), through which the primary cooling medium (2) flows. That way you can in addition to the two plates (6; 7) also the screws (9) cooled become. In this embodiment, it is thus possible to determine the number of open longitudinal recesses (3) to reduce or even completely dispense with, since in this case the cooled screws (9) additional heat dissipation takes place inside the cooling element.
- the thickness is preferably up to 1.5 mm.
- thermocouple (10) which is ideally central in the upper part of the cooling element is arranged, but also in a plurality can be located both in the top plate (6) and in the bottom plate (7).
- the invention also provides the cooling element for the purpose transporting the cooled liquid melt away as an inclined plane arrange a preferred angle of inclination between 30 and 60 °, which means that the cooled melt leaves the casting area more quickly can;
- An arrangement of the cooling element as is equally well suited Vibrating channel with a preferred drive by means of an unbalance exciter, Slider crank, resonance system or kinematics system, as a roller with preferably a horizontal scraper or as a plate or disc vertical shaft.
- cooling elements have proven particularly useful, which in turn for the purpose of carrying away the cooled Liquid melt a feed device for liquid or gaseous or fluidized powdery inert media or reaction media as Have secondary cooling medium (4).
- This is primarily the lubricity the solidifying or solidified melt increases and the relative Movement on a "cushion" supported.
- the flushing effect dampened by the melt and erosion processes on the surface of the Cooling element are mitigated. That the liquid melt through these inert media are additionally cooled and the liquid melt stream or the cooling melt areas are thereby broken is a further advantage of this preferred embodiment.
- cooling element according to the invention for Liquid melting is a significant improvement over the state of the art Technology because it primarily increases occupational safety Reduced material costs and the solidified and now received makes evenly divided melts easier to handle.
- a cooling element for liquid melts with integrated is described
- Surface cooling devices in the form of several, usually round Cooling bores or channels that hold a primary cooling medium are usually arranged parallel to each other inside the cooling element and in the relative pouring direction of the liquid melt and / or across this run, and which is characterized in that the impinging liquid melt facing the top of the cooling element several arranged parallel to each other and essentially parallel and / or transverse to the integrated cooling channels, to the top open longitudinal recesses for receiving a secondary cooling medium having.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Continuous Casting (AREA)
Abstract
Description
Claims (14)
- Abkühlelement für Flüssigschmelzen mit integrierten Oberflächenkühleinrichtungen in Form mehrerer Kühlbohrungen oder -kanäle (1), die zur Aufnahme eines Primärkühlmediums (2) im Inneren des Abkühlelementes angeordnet sind und in relativer Ausgießrichtung der Flüssigschmelze und/oder quer zu dieser verlaufen, dadurch gekennzeichnet, dass die der auftreffenden Flüssigschmelze zugewandte Oberseite des Abkühlelementes mehrere parallel zueinander angeordnete und im Wesentlichen parallel und/oder quer zu den integrierten Kühlkanälen (1) verlaufende, zur Oberseite hin offene Längsvertiefungen (3) zur Aufnahme eines Sekundärkühlmediums (4) aufweist.
- Abkühlelement nach Anspruch 1, dadurch gekennzeichnet, dass es platten-, trog-, walzen-, teller- oder rinnenförmig ausgebildet ist.
- Abkühlelement nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass es eine oder mehrere mit den Längsvertiefungen (3) verbundene Bohrungen (5) zum Verteilen des Sekundärkühlmediums (4) in die Längsvertiefungen (3) aufweist.
- Abkühlelement nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass es sich beim Primärkühlmedium (2) um eine Metallschmelze wie z.B. eine Wismut(-legierungs)-Schmelze handelt.
- Abkühlelement nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass es sich beim Sekundärkühlmedium (4) um ein Inertgas wie z.B. Stickstoff, um verflüssigte Gase, feuchte Gas(- gemische) oder um ein fluidisierbares, inertes Pulver handelt.
- Abkühlelement nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Längsvertiefungen (3) einen rechteckigen Querschnitt aufweisen oder rillen- oder nutförmig ausgebildet sind.
- Abkühlelement nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Oberseite des Abkühlelementes aus einem Werkstoff mit hoher Wärmeleitfähigkeit, insbesondere mit einem Wert zwischen 300 und 380 W/m·°K, und/oder dichtem Gefüge, insbesondere mit einem Wert zwischen 8,8 und 9,2 kg/dm3, und/oder geringer Benetzbarkeit mit der Flüssigschmelze gefertigt ist.
- Abkühlelement nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass es aus einer Ober- (6) und einer Unterplatte (7) besteht, die vorzugsweise gegeneinander abgedichtet (8) sind und insbesondere miteinander verschraubt sind.
- Abkühlelement nach Anspruch 8, dadurch gekennzeichnet, dass die Ober- (6) und Unterplatte (7) aus unterschiedlichen Werkstoffen bestehen.
- Abkühlelement nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die integrierten Kühlkanäle (1) im Bereich der Schrauben (9) eine Ringnut (9a) zur Kühlung der Ober- (6) und Unterplatte (7) sowie der Schrauben (9) aufweisen.
- Abkühlelement nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass die Oberseite der Oberplatte (6) eine Nickelbeschichtung, vorzugsweise in einer Stärke bis 1,5 mm, aufweist.
- Abkühlelement nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass es mit mindestens einem Thermofühler (10) ausgestattet ist.
- Abkühlelement nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, dass es zum Zweck des Wegbeförderns der abgekühlten Flüssigschmelze als schiefe Ebene mit einem bevorzugten Neigungswinkel zwischen 30 und 60°, als Schwingrinne mit einem bevorzugten Antrieb mittels Unwuchterreger, Schubkurbel, Resonanzsystem oder Kinematiksystem, als Walze mit bevorzugt waagrechtem Schaber oder als Teller oder Scheibe mit bevorzugt senkrechter Welle angeordnet ist.
- Abkühlelement nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, dass es zum Zwecke des Wegbeförderns der abgekühlten Flüssigschmelze eine Aufgabevorrichtung für flüssige oder gasförmige oder fluidisierte pulverförmige Inert- oder Rektionsmedien aufweist
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10027437 | 2000-06-02 | ||
| DE2000127437 DE10027437A1 (de) | 2000-06-02 | 2000-06-02 | Abkühlelement für Flüssigschmelzen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1160531A2 true EP1160531A2 (de) | 2001-12-05 |
| EP1160531A3 EP1160531A3 (de) | 2003-11-05 |
Family
ID=7644504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01113315A Withdrawn EP1160531A3 (de) | 2000-06-02 | 2001-05-31 | Abkühlelement für Flüssigschmelzen |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1160531A3 (de) |
| DE (1) | DE10027437A1 (de) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITMI20101523A1 (it) * | 2010-08-06 | 2012-02-07 | Tenova Spa | Pannello raffreddato a fluido per forni metallurgici, sistema di raffreddamento per forni metallurgici comprendente tale pannello e forno metallurgico incorporante gli stessi |
| CN114823249A (zh) * | 2022-04-24 | 2022-07-29 | 宁德时代新能源科技股份有限公司 | 冷却装置、高压盒、电池以及用电装置 |
| CN118143241A (zh) * | 2023-02-17 | 2024-06-07 | 南京雨昂建设工程有限公司 | 一种工程机械差速器的壳体铸造用冷却设备 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004032026A1 (de) * | 2004-05-26 | 2005-12-15 | Sms Demag Ag | Kühlkörper, insbesondere für die Wände des Oberofens eines Lichtbogenofens oder eines Schachtofens |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1189470A (en) * | 1967-12-12 | 1970-04-29 | British Iron Steel Research | Improvements relating to Launders |
| AU6050580A (en) * | 1980-06-06 | 1981-12-21 | Gustavsson, Josef | Recovery boiler spout |
| DE29611704U1 (de) * | 1996-07-05 | 1996-10-17 | MAN Gutehoffnungshütte AG, 46145 Oberhausen | Kühlplatte für metallurgische Öfen |
| NL1007881C2 (nl) * | 1997-12-23 | 1999-06-24 | Hoogovens Tech Services | Goot voor het geleiden van een stroom vloeibaar metaal. |
-
2000
- 2000-06-02 DE DE2000127437 patent/DE10027437A1/de not_active Withdrawn
-
2001
- 2001-05-31 EP EP01113315A patent/EP1160531A3/de not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITMI20101523A1 (it) * | 2010-08-06 | 2012-02-07 | Tenova Spa | Pannello raffreddato a fluido per forni metallurgici, sistema di raffreddamento per forni metallurgici comprendente tale pannello e forno metallurgico incorporante gli stessi |
| WO2012017312A1 (en) * | 2010-08-06 | 2012-02-09 | Tenova S.P.A. | A panel cooled with a fluid for metallurgic furnaces, a cooling system for metallurgic furnaces comprising such a panel and metallurgic furnace incorporating them |
| US9518781B2 (en) | 2010-08-06 | 2016-12-13 | Tenova S.P.A. | Panel cooled with a fluid for metallurgic furnaces, a cooling system for metallurgic furnaces comprising such a panel and metallurgic furnace incorporating them |
| CN114823249A (zh) * | 2022-04-24 | 2022-07-29 | 宁德时代新能源科技股份有限公司 | 冷却装置、高压盒、电池以及用电装置 |
| CN114823249B (zh) * | 2022-04-24 | 2023-11-21 | 宁德时代新能源科技股份有限公司 | 冷却装置、高压盒、电池以及用电装置 |
| CN118143241A (zh) * | 2023-02-17 | 2024-06-07 | 南京雨昂建设工程有限公司 | 一种工程机械差速器的壳体铸造用冷却设备 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10027437A1 (de) | 2001-12-06 |
| EP1160531A3 (de) | 2003-11-05 |
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Effective date: 20031201 |