EP1381699B1 - Cooling plate - Google Patents
Cooling plate Download PDFInfo
- Publication number
- EP1381699B1 EP1381699B1 EP02724252A EP02724252A EP1381699B1 EP 1381699 B1 EP1381699 B1 EP 1381699B1 EP 02724252 A EP02724252 A EP 02724252A EP 02724252 A EP02724252 A EP 02724252A EP 1381699 B1 EP1381699 B1 EP 1381699B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cooling plate
- coolant channel
- cover plate
- cooling
- coolant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 77
- 239000002826 coolant Substances 0.000 claims abstract description 53
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 238000003801 milling Methods 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 3
- 229910001208 Crucible steel Inorganic materials 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 claims description 2
- 229910001060 Gray iron Inorganic materials 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000009970 fire resistant effect Effects 0.000 abstract 1
- 210000000988 bone and bone Anatomy 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000007528 sand casting Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/10—Cooling; Devices therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- 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
- 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
- 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
Definitions
- the invention relates to a cooling plate for provided with a refractory lining Shaft furnaces, with at least one coolant channel and with pipe sections to the coolant inlet or coolant outlet, wherein the respective Coolant channel on the one hand by a coolant channel cutout in the cooling plate itself and on the other hand by a second part is limited.
- a generic cooling plate is known from EP 0 930 371 A1. These discloses a cooling plate for refractory lining Shaft furnaces, provided on the back of the cooling plate cooling channels that are to part through the cooling plate itself and to another part are limited by sheets, the cooling channels by milling in the back the cooling plate and / or are introduced into the sheets.
- the cooling channels can each be closed by individual sheets or a whole plate become. In this case, the sheets or the plate on the back of the cooling plate attached by welding or bolting.
- DE 40 35 893 C1 is a cooling box made of copper for cooling in particular described by blast furnace walls.
- This has a plate-shaped Body on, with at least one an entrance and an exit having provided coolant groove.
- the coolant grooves are by means of a on the body welded cover plate to form a coolant channel closed.
- deposits, preferably of copper are introduced into the slot openings, which are welded to the base body and the cover plate.
- a cooling plate for a shaft furnace which has a coolant channel which is covered by a cover plate.
- the cover plate is partially sunk in the cooling plate.
- the invention is based on the object, a generic cooling plate with to create improved manufacturing and cooling properties.
- the coolant channel is the rear limiting second part as a cover plate in the formed by the cooling plate itself coolant channel cutout sunk arranged.
- the core of the invention is therefore not the cover plate to arrange more on the actual back wall of the cooling plate or base plate, by straddling the coolant channel cutout, but that it immediately is recessed or immersed in the coolant channel cutout.
- the cover plate is then formed by projecting webs of the coolant channel cutout encompassed.
- the cover plate is arranged so that with its back flush with the back of the cooling plate.
- the rear outer surfaces of the projecting webs of the coolant channel cutout and the back outer surface of the cover plate thus form a plane Area. This has for example advantages in the assembly, especially in the Backfill with refractory mass.
- the cover plate with two longitudinal edges along the - coolant side - Inner surfaces of the projecting webs of the coolant channel cutout the cooling plate welded. Due to this arrangement of the welds arise improved weld formation.
- the cover plate Due to the thickness and the cooling water side shape of the cover plate is the remaining Cross-section and the cross-sectional profile of the respective coolant channel certainly.
- the cover plate is formed or arranged, that it protrudes so far into the coolant channel that the resulting Coolant channel runs approximately centrally to the entire cooling plate. by virtue of the displacement of the coolant channel to the cooling plate center are the improved cooling properties.
- the cover plate has a plane coolant side Surface, according to a second embodiment, a single or multiple trough-shaped coolant-side surface.
- the coolant channel cutout in the cooling plate formed single or multiple trough-shaped.
- the total cross section of the coolant channel results from any Combination of the cross section of the coolant channel cutout in the Cooling plate and a flat or shaped cover plate.
- the cross-sectional area the coolant channel with respect to the longitudinal extent of the cross section in the end areas are larger than in the middle area. If the end areas are half or are formed fully arched, resulting in approximately the cross-sectional shape of a Half or one full bone.
- the cooling plate and / or the cover plate of a rolled or forged ingot of copper or a - low alloyed - Copper alloy manufactured are advantageousously, the production of cast copper or copper alloy casting proposed, for example by Stanggtigoder Sand casting.
- the cooling plate and / or the Cover plate made of rolled or forged steel or cast steel or Made of gray special casting, which in particular reduces the material costs. It is also recommended to combine a cooling plate made of copper with a or respective cover plates made of steel.
- Fig. 1 shows a section of a cross section through a cooling plate 1 and a stave with several coolant channels, here only one example Coolant channel 2 is shown.
- This channel 2 with a coolant, like Water is flowed through, on the one hand by a section 3 and a Deepening in the cooling plate 1 itself and on the other hand by a cover plate 4th limited as a second part.
- This cover plate 4 is in this case in the coolant channel cutout 3 recessed arranged that its back 5 flush with the Rear 6 of the cooling plate 1 closes.
- cooling plate. 1 In order to produce such a cooling channel cross-section, are in the cooling plate. 1 starting from its rear side 6 or cold side, cutouts 3 or depressions, for example, by milling introduced. The respective cutouts 3 are surrounded by projecting webs 7a, b. It is recommended to take a tiered Insert cutout in the cooling plate 1. To connect will be the cover plate 4 inserted into the recess until it at the stage 8a, b for Plant comes. The thus fixed cover plate 4 is then along its longitudinal edges 9a, b welded to the inner surfaces 10a, b of the webs 7a, b. These are the Longitudinal edges 9a, b of the cover plate to ensure optimum welds 11a, b chamfered.
- connection is made by multi-layer welding, for example by MSG (metal arc welding) or electric welding.
- MSG metal arc welding
- the cover plate 3 in the embodiment shown is a plan provided on the water-side surface 12, while the cutout 3 of the cooling plate. 1 is trough-shaped. It results in approximately a semi-oval cooling channel cross-section.
- the oven interior facing hot side 13 of the cooling plate 1 is provided with grooves 14th provided for receiving refractory material 23.
- FIG. 1 A second embodiment of a cooling plate 101 is shown in FIG.
- the cover plate 104 no longer flat, but also trough-shaped or oval executed. Overall, this results in an approximately oval cross section of the cooling channel 102 with favorable flow properties.
- the fluidic properties are further improved by the cooling plate 201 with a double trough-shaped cutout 203 or a depression, preferably by milling or profile rolling, is provided.
- the troughs 214a, b are formed here as bulges.
- a cover plate 204 with a plane water-side Surface 212 is approximately the shape of a half bone for the cooling channel 202.
- the water-side surface 212 of the cover plate 204 to provide a complementary double trough-shaped depression, so that the overall result is the cross-sectional shape of a bone would.
- a half or full bone cross section causes the largest Part of the cooling water no longer in the central area 215, but in the heat-loaded End portions or troughs 214a, b of the cooling channel 202 flows, wherein greater flow rates and thus more favorable heat transfer coefficient values can be achieved.
- the cross section in the middle area 215 is to be construed proportionately so that the lower - there Amounts of heat - can be dissipated well.
- Such cooling plates 1, 101, 201 or staves made of copper or steel have Pipe sections 16, 17 for coolant inlet and coolant outlet on. These Pipe sections may be at the ends of the respective coolant channels or even with closed ends of the coolant channels in holes in the cover plate are located, wherein the pipe sections 16, 17 through holes 18, 19 extend in the furnace wall 20 (see Fig. 4).
- the cooling plate 1 When shown in Fig. 4 Embodiment, the cooling plate 1 by means of screws 21, 22 with the Furnace wall 20 connected.
- Other connections are also conceivable, such as For example, a connection via a bridge bracket.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Blast Furnaces (AREA)
Abstract
Description
Die Erfindung betrifft eine Kühlplatte für mit einer feuerfesten Auskleidung versehene Schachtöfen, mit mindestens einem Kühlmittelkanal sowie mit Rohrabschnitten zum Kühlmitteleintritt bzw. Kühlmittelaustritt, wobei der jeweilige Kühlmittelkanal einerseits durch einen Kühlmittelkanalausschnitt in der Kühlplatte selbst und andererseits durch ein zweites Teil begrenzt ist.The invention relates to a cooling plate for provided with a refractory lining Shaft furnaces, with at least one coolant channel and with pipe sections to the coolant inlet or coolant outlet, wherein the respective Coolant channel on the one hand by a coolant channel cutout in the cooling plate itself and on the other hand by a second part is limited.
Eine gattungsgemäße Kühlplatte ist aus der EP 0 930 371 A1 bekannt. Diese offenbart eine Kühlplatte für mit einer feuerfesten Auskleidung versehene Schachtöfen, wobei auf der Rückseite der Kühlplatte Kühlkanäle vorgesehen sind, die zu einem Teil durch die Kühlplatte selbst und zu einem anderen Teil durch Bleche begrenzt sind, wobei die Kühlkanäle durch Fräsen in die Rückseite der Kühlplatte und/oder in die Bleche eingebracht sind. Die Kühlkanäle können jeweils durch einzelne Bleche oder eine ganze Platte verschlossen werden. Hierbei werden die Bleche bzw. die Platte auf die Rückseite der Kühlplatte durch Schweißen oder Verschrauben angebracht.A generic cooling plate is known from EP 0 930 371 A1. These discloses a cooling plate for refractory lining Shaft furnaces, provided on the back of the cooling plate cooling channels that are to part through the cooling plate itself and to another part are limited by sheets, the cooling channels by milling in the back the cooling plate and / or are introduced into the sheets. The cooling channels can each be closed by individual sheets or a whole plate become. In this case, the sheets or the plate on the back of the cooling plate attached by welding or bolting.
In der DE 40 35 893 C1 ist ein Kühlkasten aus Kupfer zur Kühlung insbesondere von Hochofenwänden beschrieben. Dieser weist einen plattenförmigen Grundkörper auf, der mit mindestens einer einen Eingang und einen Ausgang aufweisenden Kühlmittelnut versehen ist. Die Kühlmittelnuten sind mittels einer auf den Grundkörper aufgeschweißten Deckplatte zur Bildung eines Kühlmittelkanals geschlossen. Hierzu wird der Grundkörper auf der Seite der Nutöffnungen mit einer Deckplatte überdeckt und die Deckplatte mit dem Grundkörper explosiv, d.h. durch Aufsprengen, verschweißt. Nach einer Weiterentwicklung werden in die Nutöffnungen Einlagen, vorzugsweise aus Kupfer, eingebracht, die mit dem Grundkörper und der Deckplatte verschweißt werden. In DE 40 35 893 C1 is a cooling box made of copper for cooling in particular described by blast furnace walls. This has a plate-shaped Body on, with at least one an entrance and an exit having provided coolant groove. The coolant grooves are by means of a on the body welded cover plate to form a coolant channel closed. For this purpose, the base body on the side of the slot openings covered with a cover plate and the cover plate with the base body explosive, i. by blowing open, welded. After a further development deposits, preferably of copper, are introduced into the slot openings, which are welded to the base body and the cover plate.
Bei beiden Kühlelementen wird ein Kühlkanal in der Rückseite einer Grundplatte durch Abdecken mit einer Deckplatte, die auf der Rückseite selbst angebracht wird, gebildet.In both cooling elements, a cooling channel in the back of a base plate by covering it with a cover plate attached to the back itself gets formed.
In der FR - A - 2 775 695 ist eine Kühlplatte für einen Schachtofen beschrieben, welche einen Kühlmittelkanal aufweist, der durch eine Deckplatte abgedeckt ist. Die Deckplatte ist dabei teilweise in der Kühlplatte eingesenkt angeordnet.In FR-A-2 775 695 a cooling plate for a shaft furnace is described, which has a coolant channel which is covered by a cover plate. The cover plate is partially sunk in the cooling plate.
Der Erfindung liegt die Aufgabe zugrunde, eine gattungsgemäße Kühlplatte mit verbesserten fertigungs- als auch kühltechnischen Eigenschaften zu schaffen.The invention is based on the object, a generic cooling plate with to create improved manufacturing and cooling properties.
Diese Aufgabe wird durch die Kühlplatte mit den Merkmalen des Anspruchs 1 gelöst.
Vorteilhafte Weiterentwicklungen sind in den Unteransprüchen beschrieben.This object is achieved by the cooling plate with the features of
Erfindungsgemäß ist das den Kühlmittelkanal rückwärtig begrenzende zweite Teil als Deckplatte in den durch die Kühlplatte selbst gebildeten Kühlmittelkanalausschnitt eingesenkt angeordnet. Kern der Erfindung ist daher, die Deckplatte nicht mehr auf der eigentlichen Rückwand der Kühlplatte oder Grundplatte anzuordnen, indem sie den Kühlmittelkanalausschnitt überspannt, sondern dass sie unmittelbar in den Kühlmittelkanalausschnitt eingesenkt oder eintauchend angeordnet wird. Die Deckplatte wird dann von vorspringenden Stegen des Kühlmittelkanalausschnitts umgriffen. Die Deckplatte wird so angeordnet, dass sie mit ihrer Rückseite bündig mit der Rückseite der Kühlplatte abschließt. Die rückseitigen Außenflächen der vorspringenden Stege des Kühlmittelkanalausschnitts und die rückseitige Außenfläche der Deckplatte bilden folglich eine ebene Fläche. Dies hat beispielsweise Vorteile bei der Montage, insbesondere bei der Hinterfüllung mit Feuerfest-Masse. According to the invention, the coolant channel is the rear limiting second part as a cover plate in the formed by the cooling plate itself coolant channel cutout sunk arranged. The core of the invention is therefore not the cover plate to arrange more on the actual back wall of the cooling plate or base plate, by straddling the coolant channel cutout, but that it immediately is recessed or immersed in the coolant channel cutout. The cover plate is then formed by projecting webs of the coolant channel cutout encompassed. The cover plate is arranged so that with its back flush with the back of the cooling plate. The rear outer surfaces of the projecting webs of the coolant channel cutout and the back outer surface of the cover plate thus form a plane Area. This has for example advantages in the assembly, especially in the Backfill with refractory mass.
Vorzugsweise ist die Deckplatte mit beiden Längskanten entlang der - kühlmittelseitigen - Innenflächen der vorspringenden Stege des Kühlmittelkanalausschnitts der Kühlplatte verschweißt. Durch diese Anordnung der Schweißnähte ergeben sich verbesserte Schweißnahtausbildungen.Preferably, the cover plate with two longitudinal edges along the - coolant side - Inner surfaces of the projecting webs of the coolant channel cutout the cooling plate welded. Due to this arrangement of the welds arise improved weld formation.
Durch die Dicke sowie die kühlwasserseitige Form der Deckplatte wird der verbleibende Querschnitt sowie der Querschnittsverlauf des jeweiligen Kühlmittelkanals bestimmt. Vorzugsweise ist die Deckplatte so ausgebildet bzw. angeordnet, dass sie soweit in den Kühlmittelkanal hineinragt, dass der sich ergebende Kühlmittelkanal in etwa mittig zur Gesamtkühlplatte verläuft. Aufgrund der Verlagerung des Kühlmittelkanals zur Kühlplattenmitte hin werden die kühltechnischen Eigenschaften verbessert.Due to the thickness and the cooling water side shape of the cover plate is the remaining Cross-section and the cross-sectional profile of the respective coolant channel certainly. Preferably, the cover plate is formed or arranged, that it protrudes so far into the coolant channel that the resulting Coolant channel runs approximately centrally to the entire cooling plate. by virtue of the displacement of the coolant channel to the cooling plate center are the improved cooling properties.
Nach einer ersten Ausführungsform weist die Deckplatte eine plane kühlmittelseitige Fläche, nach einer zweiten Ausführungsform eine einfach- oder mehrfach muldenförmige kühlmittelseitige Fläche auf. Vorzugweise ist der Kühlmittelkanalausschnitt in der Kühlplatte einfach oder mehrfach muldenförmig ausgebildet. Der Gesamtquerschnitt des Kühlmittelkanals ergibt sich aus einer beliebigen Kombination des Querschnitts des Kühlmittelkanalausschnitts in der Kühlplatte sowie einer planen oder ausgeformten Deckplatte.According to a first embodiment, the cover plate has a plane coolant side Surface, according to a second embodiment, a single or multiple trough-shaped coolant-side surface. Preferably, the coolant channel cutout in the cooling plate formed single or multiple trough-shaped. The total cross section of the coolant channel results from any Combination of the cross section of the coolant channel cutout in the Cooling plate and a flat or shaped cover plate.
Nach einer besonders bevorzugten Ausführungsform ist die Querschnittsfläche des Kühlmittelkanals in Bezug auf die Längserstreckung des Querschnitts in den Endbereichen größer ist als im Mittenbereich. Wenn die Endbereiche halboder vollgewölbt ausgebildet sind, ergibt sich in etwa die Querschnittsform eines Halb- oder eines Voll-Knochens.According to a particularly preferred embodiment, the cross-sectional area the coolant channel with respect to the longitudinal extent of the cross section in the end areas are larger than in the middle area. If the end areas are half or are formed fully arched, resulting in approximately the cross-sectional shape of a Half or one full bone.
Vorteilhafterweise sind die Kühlplatte und/oder die Deckplatte aus einem gewalzten oder geschmiedeten Rohblock aus Kupfer oder einer - niedriglegierten - Kupferlegierung gefertigt. Alternativ wird auch die Herstellung aus Kupferguss oder Kupferlegierungsguss vorgeschlagen, beispielsweise durch Stanggießoder Sandformverfahren.Advantageously, the cooling plate and / or the cover plate of a rolled or forged ingot of copper or a - low alloyed - Copper alloy manufactured. Alternatively, the production of cast copper or copper alloy casting proposed, for example by Stanggießoder Sand casting.
Nach einer bevorzugten Ausführungsform sind die Kühlplatte und/oder die Deckplatte aus gewalztem bzw. geschmiedetem Stahl oder aus Stahlguss oder aus Grau-Sonderguss gefertigt, was insbesondere die Materialkosten reduziert. Es empfiehlt sich auch die Kombination einer Kühlplatte aus Kupfer mit einer oder jeweiligen Deckplatten aus Stahl. According to a preferred embodiment, the cooling plate and / or the Cover plate made of rolled or forged steel or cast steel or Made of gray special casting, which in particular reduces the material costs. It is also recommended to combine a cooling plate made of copper with a or respective cover plates made of steel.
Weitere Einzelheiten und Vorteile der Erfindung ergeben sich aus den Unteransprüchen und aus der nachfolgenden Beschreibung, in der die in den Figuren dargestellten Ausführungsformen der Erfindung näher erläutert werden. Dabei sind neben den oben aufgeführten Kombinationen von Merkmalen auch Merkmale alleine oder in anderen Kombinationen erfindungswesentlich. Es zeigen:
- Fig. 1
- einen Ausschnitt eines Querschnitts einer Kühlplatte nach einer ersten Ausführungsform;
- Fig. 2
- einen Ausschnitt eines Querschnitts einer Kühlplatte nach einer zweiten Ausführungsform;
- Fig. 3
- einen Ausschnitt eines Querschnitts einer Kühlplatte nach einer dritten Ausführungsform;
- Fig. 4
- einen Längsschnitt durch eine in einer Ofenwandung eines Hochofens eingebauten Kühlplatte.
- Fig. 1
- a section of a cross section of a cooling plate according to a first embodiment;
- Fig. 2
- a detail of a cross section of a cooling plate according to a second embodiment;
- Fig. 3
- a section of a cross section of a cooling plate according to a third embodiment;
- Fig. 4
- a longitudinal section through a built-in furnace wall of a blast furnace cooling plate.
Fig. 1 zeigt einen Ausschnitt eines Querschnitts durch eine Kühlplatte 1 bzw.
einen Stave mit mehreren Kühlmittelkanälen, wobei hier beispielhaft nur ein
Kühlmittelkanal 2 dargestellt ist. Dieser Kanal 2, der mit einem Kühlmittel, wie
Wasser, durchflossen wird, ist einerseits durch einen Ausschnitt 3 bzw. eine
Vertiefung in der Kühlplatte 1 selbst und andererseits durch eine Deckplatte 4
als zweites Teil begrenzt. Diese Deckplatte 4 ist hierbei so in den Kühlmittelkanalausschnitt
3 eingesenkt angeordnet, dass ihre Rückseite 5 bündig mit der
Rückseite 6 der Kühlplatte 1 abschließt.Fig. 1 shows a section of a cross section through a
Um einen solchen Kühlkanalquerschnitt herzustellen, werden in die Kühlplatte 1
- ausgehend von ihrer Rückseite 6 bzw. Kaltseite - Ausschnitte 3 bzw. Vertiefungen,
beispielsweise durch Fräsen, eingebracht. Die jeweiligen Ausschnitte 3
sind von vorspringenden Stegen 7a, b umgeben. Es empfiehlt sich, einen stufigen
Ausschnitt in die Kühlplatte 1 einzubringen. Zur Verbindung wird anschließend
die Deckplatte 4 in die Vertiefung eingeführt, bis sie an der Stufe 8a, b zur
Anlage kommt. Die so fixierte Deckplatte 4 wird dann entlang ihrer Längskanten
9a, b mit den Innenflächen 10a,b der Stege 7a, b verschweißt. Hierzu sind die
Längskanten 9a,b der Deckplatte zur Gewährleistung optimaler Schweißnähte
11a, b angefast. Die Verbindung erfolgt über ein Mehrlagenschweißen, beispielsweise
durch MSG- (Metall-Schutzgasschweißen) oder Elektroschweißen.
Die Deckplatte 3 bei dem gezeigten Ausführungsbeispiel ist mit einer planen
wasserseitige Fläche 12 versehen, während der Ausschnitt 3 der Kühlplatte 1
muldenförmig ist. Es ergibt sich in etwa ein halb-ovaler Kühlkanalquerschnitt.In order to produce such a cooling channel cross-section, are in the cooling plate. 1
starting from its
Die zum Ofeninneren weisende Heißseite 13 der Kühlplatte 1 ist mit Nuten 14
zur Aufnahme von feuerfestem Material 23 versehen.The oven interior facing
Eine zweite Ausführungsform einer Kühlplatte 101 wird in Fig. 2 dargestellt. In
Abweichung zu der Ausführungsform nach Fig. 1 ist die wasserseitige Seite 112
der Deckplatte 104 nicht mehr plan, sondern auch muldenförmig bzw. oval ausgeführt.
Es ergibt sich insgesamt ein etwa ovaler Querschnitt des Kühlkanals
102 mit günstigen strömungstechnischen Eigenschaften.A second embodiment of a
Die strömungstechnischen Eigenschaften werden noch weiter verbessert, indem
die Kühlplatte 201 mit einem doppelt muldenförmig ausgeführten Ausschnitt
203 bzw. einer Vertiefung, vorzugsweise durch Fräsen oder Profilwalzen,
versehen wird. Die Mulden 214a,b sind hier als Auswölbungen ausgebildet.
Im Querschnitt ergibt sich mit einer Deckplatte 204 mit einer planen wasserseitigen
Fläche 212 in etwa die Form eines halben Knochens für den Kühlkanal
202. Ebenso empfiehlt es sich, die wasserseitige Fläche 212 der Deckplatte
204 mit einer komplementären doppelt muldenförmige Vertiefung zu versehen,
so dass sich insgesamt die Querschnittsform eines Knochens ergeben
würde. Ein halb- oder voll- knochenförmiger Querschnitt bewirkt, daß der größte
Teil des Kühlwassers nicht mehr im Mittenbereich 215, sondern in den wärmebelasteten
Endbereichen bzw. Mulden 214a,b des Kühlkanals 202 fließt, wobei
größere Strömungsgeschwindigkeiten und somit günstigere Wärmeübergangskoeffizienten-Werte
erreicht werden können. Der Querschnitt im Mittenbereich
215 ist dabei im Verhältnis so auszulegen, daß die dort - geringer anfallenden
Wärmemengen - gut abgeführt werden können. The fluidic properties are further improved by
the
Derartige Kühlplatten 1, 101, 201 bzw. Staves aus Kupfer oder Stahl weisen
Rohrabschnitte 16, 17 zum Kühlmitteleintritt sowie Kühlmittelaustritt auf. Diese
Rohrabschnitte können sich an den Enden der jeweiligen Kühlmittelkanäle oder
auch bei verschlossenen Enden der Kühlmittelkanäle in Bohrungen der Deckplatte
befinden, wobei sich die Rohrabschnitte 16, 17 durch Bohrungen 18, 19
in der Ofenwandung 20 hindurch erstrecken (vgl. Fig. 4). Bei der in Fig. 4 gezeigten
Ausführungsform ist die Kühlplatte 1 mittels Schrauben 21, 22 mit der
Ofenwandung 20 verbunden. Andere Verbindungen sind ebenfalls denkbar, wie
beispielsweise eine Verbindung über eine Steg-Halterung.
Claims (10)
- A cooling plate (1, 101, 201 ) for shaft furnaces provided with a refractory lining,
comprising at least one coolant channel (2, 102, 202) as well as pipe sections (16, 17) that serve as a coolant inlet and a coolant outlet,
wherein the respective coolant channel (2, 102, 202) is limited by a coolant channel cutout in the cooling plate, as well as by a second part that is realized in the form of a cover plate (4, 104, 204) and arranged in a sunken fashion in the coolant channel cutout (3, 203) of the cooling plate,
characterized in that the cover plate (4, 104, 204) is arranged in a sunken fashion such that it ends flush with the rear side (6) of the cooling plate (1). - The cooling plate according to Claim 1,
characterized in that the longitudinal edges (9a, b) of the cover plate (4) are welded to the cooling plate along the inner surfaces (10a, b) of the coolant channel cutout (3). - The cooling plate according to Claim 1 or 2,
characterized in that the cover plate (4) protrudes into the coolant channel cutout (3) to such a degree that the resulting coolant channel (2) extends about centrally referred to the entire cooling plate. - The cooling plate according to one of Claims 1-3,
characterized in that the cover plate (4, 204) has a plane surface (12, 212) on the coolant side. - The cooling plate according to one of Claims 1-3,
characterized in that the cover plate (104) has a surface (112) with one or more trough-shaped structures on the coolant side. - The cooling plate according to one of Claims 1-5,
characterized in that the coolant channel cutout (203) in the cooling plate (201) is realized with one or more trough-shaped structures. - The cooling plate according to Claim 6,
characterized in that the cross-sectional surface of the coolant channel (202) is larger in the end regions than in the central region (215) referred to the longitudinal direction of the cross section. - The cooling plate according to one of Claims 1-7,
characterized in that the cooling plate (1, 101, 201 ) and/or the cover plate (4, 104, 204) is/are manufactured from rolled or forged steel or from cast steel or special gray cast iron. - The cooling plate according to one of Claims 1-7,
characterized in that the cooling plate (1, 101, 201) and/or the cover plate (4, 104, 204) is/are manufactured from a rolled or forged ingot of copper or a copper alloy or of cast copper or a cast copper alloy. - The cooling plate according to one of Claims 1-9,
characterized in that the respective coolant channel cutout (3, 203) in the cooling plate and/or in the cover plate is produced by means of milling or profile-rolling or defined by the casting mould.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10120614A DE10120614A1 (en) | 2001-04-26 | 2001-04-26 | cooling plate |
| DE10120614 | 2001-04-26 | ||
| PCT/EP2002/003142 WO2002088398A1 (en) | 2001-04-26 | 2002-03-21 | Cooling plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1381699A1 EP1381699A1 (en) | 2004-01-21 |
| EP1381699B1 true EP1381699B1 (en) | 2005-02-16 |
Family
ID=7682906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02724252A Expired - Lifetime EP1381699B1 (en) | 2001-04-26 | 2002-03-21 | Cooling plate |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1381699B1 (en) |
| AT (1) | ATE289359T1 (en) |
| DE (2) | DE10120614A1 (en) |
| WO (1) | WO2002088398A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2005210677B2 (en) * | 2004-02-04 | 2009-12-10 | Tata Steel Limited | Metallurgical vessel |
| MY144669A (en) | 2004-02-04 | 2011-10-31 | Tech Resources Pty Ltd | Metallurgical vessel |
| CA2591113C (en) | 2004-12-20 | 2022-06-21 | Antibodyshop A/S | Determination of neutrophil gelatinase-associated lipocalin (ngal) as a diagnostic marker for renal disorders |
| EP1847622A1 (en) * | 2006-04-18 | 2007-10-24 | Paul Wurth S.A. | Method of manufacturing a stave cooler for a metallurgical furnace and a resulting stave cooler |
| LU91811B1 (en) * | 2011-04-27 | 2012-10-29 | Wurth Paul Sa | Load distribution device |
| LU92471B1 (en) * | 2014-06-06 | 2015-12-07 | Wurth Paul Sa | Charging installation of a metallurgical reactor |
| CN110094985A (en) * | 2019-05-22 | 2019-08-06 | 汕头华兴冶金设备股份有限公司 | A kind of novel copper cooling plate and its manufacturing method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2775695B1 (en) * | 1998-03-05 | 2000-04-28 | Forcast Int | COOLING PLATE FOR A TANK OVEN PROVIDED WITH A REFRACTORY COATING, AND PARTICULARLY FOR A TOP STOVE |
| DE10000987A1 (en) * | 1999-04-09 | 2000-10-12 | Sms Demag Ag | Cooling stave for a refractory lined shaft furnace, especially a blast furnace, comprises two trough-like rolled copper profiles welded together to form a non-circular cooling channel |
-
2001
- 2001-04-26 DE DE10120614A patent/DE10120614A1/en not_active Ceased
-
2002
- 2002-03-21 WO PCT/EP2002/003142 patent/WO2002088398A1/en not_active Application Discontinuation
- 2002-03-21 DE DE50202280T patent/DE50202280D1/en not_active Expired - Fee Related
- 2002-03-21 AT AT02724252T patent/ATE289359T1/en not_active IP Right Cessation
- 2002-03-21 EP EP02724252A patent/EP1381699B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE10120614A1 (en) | 2002-10-31 |
| WO2002088398A1 (en) | 2002-11-07 |
| ATE289359T1 (en) | 2005-03-15 |
| EP1381699A1 (en) | 2004-01-21 |
| DE50202280D1 (en) | 2005-03-24 |
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