EP0731180B1 - Stove cooler for shaft furnaces - Google Patents
Stove cooler for shaft furnaces Download PDFInfo
- Publication number
- EP0731180B1 EP0731180B1 EP95117747A EP95117747A EP0731180B1 EP 0731180 B1 EP0731180 B1 EP 0731180B1 EP 95117747 A EP95117747 A EP 95117747A EP 95117747 A EP95117747 A EP 95117747A EP 0731180 B1 EP0731180 B1 EP 0731180B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cooling
- blind holes
- cooling plate
- plate
- copper
- 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.)
- Revoked
Links
- 238000001816 cooling Methods 0.000 claims abstract description 81
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052802 copper Inorganic materials 0.000 claims abstract description 18
- 239000010949 copper Substances 0.000 claims abstract description 18
- 229910000881 Cu alloy Inorganic materials 0.000 claims abstract description 4
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 4
- 239000000956 alloy Substances 0.000 claims abstract description 4
- 239000002826 coolant Substances 0.000 claims description 7
- 239000011324 bead Substances 0.000 description 5
- 239000000498 cooling water Substances 0.000 description 5
- 229910001018 Cast iron Inorganic materials 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000011449 brick Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000007921 spray Substances 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
- 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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/10—Cooling; Devices therefor
Definitions
- the invention relates to a cooling plate with reinforced head ends for with one refractory lining shaft furnaces, in particular blast furnaces consisting of copper or one low-alloy copper alloy with inside arranged coolant channels, the cooling plate from a forged or rolled ingot is made, the cooling channels running vertically Are blind holes and being on the inside of the Shaft furnace facing side ridges and grooves incorporated are.
- Such cooling plates are usually between the Furnace jacket and the furnace lining arranged and on the cooling system of the shaft furnace is connected. On the the cooling elements are on the inside of the furnace partly provided with fireproof material.
- a cooling plate is known from DE 39 25 280, at which the cooling channels through pipes cast in cast iron are formed and the lower edge of the plate body trained as a support nose for the fireproof masonry is.
- the support nose is also connected to the cooling system connected.
- a cooling plate is known from a forged or rolled ingot is made and where the cooling channels run vertically Blind holes are, which by mechanical Deep drilling are introduced.
- the structure of the cooling plate is much denser and more homogeneous than one Cast copper plate; Blowholes, such as those found in cast copper plates occur frequently are excluded.
- the strength values lie higher and the thermal conductivity is more uniform and higher than that of the cast copper plates.
- the target position of the holes according to height and side is strictly adhered to and thus an even one Guaranteed heat dissipation.
- the cooling plate faces the inside of the furnace Side with refractory bricks or with a refractory Rammed earth lined. This will make the cooling surface the plate downsized and in case of wear or the loss of the refractory furnace lining heat removal from the oven is limited. Furthermore, the cooling of the plate should be so intense that the temperature of the hot plate side is well below the softening temperature of copper is maintained.
- From DE-OS 23 62 974 is a cooled shaft furnace known with a steel jacket, with the inside Cooling plates with essentially vertical inner Pipes are connected at the top and bottom of the cooling plate from this pass through the steel jacket.
- the cooling plate is on the side facing away from the steel jacket Side with a retaining cam or nose provided by another, in one pipe running essentially horizontally with connections led through the steel jacket runs, with at least part of the vertical Pipes over a considerable part of the vertical Dimension stretches.
- FR-A 22 30 730 is a cooler for the Evaporative cooling of a blast furnace known from a plate with a cross near the end of the Plate arranged cantilever as well as from tubes which in the plate and in the said cantilever are, and in which a coolant flows.
- the inlet and outlet ends of these pipes are open different heights on the opposite of the overhang Page arranged.
- the pipe for the circulation of the Coolant in the cantilever is designed so that it is arranged in the cantilever so that the input and Exit ends between the exit ends of the in the Pipe laid pipes lie.
- the ends of the parts of the circulation pipe in the cantilever, that are inside this projection are in arranged at an angle of 2 to 4 ° in the vertical, so that the circulation of the coolant from the inlet end to Outlet end of the pipes is rising.
- US-4,071,230 are cooling elements for one Shaft furnace known on the inside of the furnace shell are attached.
- the rectangular cooling element is made up of five on top of each other, arranged in a gap metallic blocks connected to two vertically running pairs of cooling pipes by means of suitable Fasteners are attached.
- the pipe pairs with the lower cooling water inlet and the upper one Cooling water inlets are through openings in the led metallic furnace wall, the metallic blocks only become on the outside of the blast furnace directed side cooled.
- a disadvantage of these rolled or forged Copper cooling plates is that the load capacity of the Masonry or the masonry at the head ends the cooling plate is not optimal and therefore the Service life of the refractory ramming masses or ff stones is not sufficient.
- the object of the invention is therefore a To create a cooling plate with the reinforced head ends in the cooling system of the pocket oven be involved and the Heat dissipation in this area of the plates as well takes place evenly and homogeneously, so that there too improved cooling of the refractory furnace lining and of the furnace is guaranteed.
- a bead can be used for fireproof masonry also from the rough copper block be forged, drilling the vertical and horizontal cooling tubes in this bead takes place in the known way.
- Fig. 1 shows a longitudinal section through the cooling plate (1) with, for example, four vertically arranged blind holes (2, 3) and with the in the cooling element (4) vertical (5) and horizontal (6) blind holes.
- Cooling water supply at the blind holes (3) takes place from below via the coolant supply lines connected pipe lugs (2), in the vertical and horizontal blind bores (5, 6) of the Cooling element (4) also via pipe sections (2).
- the Cooling circuits of the cooling plate (1) and the cooling element (4) are supplied as separate cooling circuits to the Blast furnace cooling system connected.
- Fig. 2 shows a section through the cooling plate (1) the vertically arranged blind holes (3), which are known Way at the lower end by welding or soldering points are closed.
- the cooling water supply or discharge takes place via the pipe sections (2).
- cooling plate (1) In the upper part of the cooling plate (1) there is a detachable one Cooling segment (4) attached in the vertical (5) and horizontal blind holes (6) are introduced.
- the Horizontal blind holes (6) are also in the cooling plate (1) arranged to the cooling water supply and discharge over the pipe lugs (2) through the wall of the blast furnace (10) to ensure.
- Fig. 3 shows a cooling plate (1) with one from the ingot forged bead (9) in which vertical (5) and horizontal (6) blind holes are made.
- the horizontal blind bores (6) are also over here Pipe lugs (2) through the wall of the blast furnace shell (10) connected to the blast furnace cooling circuit.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Blast Furnaces (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Heat Treatment Of Articles (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Tunnel Furnaces (AREA)
Abstract
Description
Die Erfindung betrifft eine Kühlplatte mit verstärktem Kopfenden für mit einer feuerfesten Auskleidung versehene Schachtöfen, insbesondere Hochöfen, bestehend aus Kupfer oder einer niedriglegierten Kupferlegierung mit in ihrem Inneren angeordneten Kühlmittelkanälen, wobei die Kühlplatte aus einem geschmiedeten oder gewalzten Rohblock gefertigt ist, die Kühlkanäle vertikal verlaufende Sackbohrungen sind und wobei auf der dem Inneren des Schachtofens zugewandten Seite Stege und Nuten eingearbeitet sind.The invention relates to a cooling plate with reinforced head ends for with one refractory lining shaft furnaces, in particular blast furnaces consisting of copper or one low-alloy copper alloy with inside arranged coolant channels, the cooling plate from a forged or rolled ingot is made, the cooling channels running vertically Are blind holes and being on the inside of the Shaft furnace facing side ridges and grooves incorporated are.
Derartige Kühlplatten sind üblicherweise zwischen dem Ofenmantel und der Ofenausmauerung angeordnet und an das Kühlsystem des Schachtofens angeschlossen. Auf der dem Ofeninnern zugewandten Seite sind die Kühlelemente zum Teil mit feuerfestem Material versehen.Such cooling plates are usually between the Furnace jacket and the furnace lining arranged and on the cooling system of the shaft furnace is connected. On the the cooling elements are on the inside of the furnace partly provided with fireproof material.
Aus der DE 39 25 280 ist eine Kühlplatte bekannt, bei der die Kühlkanäle durch in Gußeisen eingegossene Rohre gebildet werden und die Unterkante des Plattenkörpers als Tragnase für das feuerfeste Mauerwerk ausgebildet ist. Auch die Tragnase ist an das Kühlsystem angeschlossen. Diese Platten haben eine geringe Wärmeabfuhr infolge der geringen Wärmeleitfähigkeit des Gußeisens und wegen des Widerstandes zwischen den Kühlrohren und dem Plattenkörper, verursacht durch eine Oxidschicht oder einen Luftspalt.A cooling plate is known from DE 39 25 280, at which the cooling channels through pipes cast in cast iron are formed and the lower edge of the plate body trained as a support nose for the fireproof masonry is. The support nose is also connected to the cooling system connected. These plates have low heat dissipation due to the low thermal conductivity of the Cast iron and because of the resistance between the cooling pipes and the plate body caused by one Oxide layer or an air gap.
Im Falle eines Verlustes des Hochofenmauerwerks nach einer gewissen Betriebszeit ist die Innenfläche der Kühlplatten direkt der Ofentemperatur ausgesetzt. Da die Ofentemperatur weit oberhalb der Schmelztemperatur des Gußeisens liegt und die inneren Wärmedurchgangswiderstände der Kühlplatten zu einer ungenügenden Kühlung der heißen Plattenseite führen, ist ein beschleunigter Verschleiß der gußeisernen Platten unvermeidbar und die Standzeit entsprechend begrenzt.In case of loss of the blast furnace masonry a certain operating time is the inner surface of the Cooling plates exposed directly to the oven temperature. Because the furnace temperature is well above the melting temperature of the cast iron and the internal thermal resistance of the cooling plates to an insufficient Cooling the hot plate side is an accelerated Wear of the cast iron plates inevitable and the service life is limited accordingly.
Es sind weiterhin Platten aus Kupferguß bekannt, bei denen die Kühlkanäle entweder durch eingegossene Rohre gebildet sind oder direkt eingegossen sind. Das Gefüge von Kupferguß ist nicht so homogen und dicht wie das von geschmiedeten bzw. gewalztem Kupfer. Infolgedessen ist auch die Wärmeleitung von Kupferguß schlechter und die Festigkeit geringer. Bei den eingegossenen Rohren behindert eine Oxidschicht zwischen Rohr und Kupferblock die Wärmeleitung.There are also known plates made of cast copper, at which the cooling channels either through cast pipes are formed or cast directly. The structure of copper casting is not as homogeneous and dense as that of forged or rolled copper. Consequently the heat conduction of copper casting is also worse and the strength less. For the cast pipes prevents an oxide layer between the pipe and the copper block the heat conduction.
Aus der DE 29 07 511 ist eine Kühlplatte bekannt, die aus einem geschmiedeten oder gewalzten Rohblock gefertigt ist und wo die Kühlkanäle vertikal verlaufende Sackbohrungen sind, welche durch mechanisches Tiefbohren eingebracht sind. Das Gefüge der Kühlplatte ist wesentlich dichter und homogener als das einer Kupfergußplatte; Lunker, wie sie bei Kupfergußplatten häufig auftreten, sind ausgeschlossen. Die Festigkeitswerte liegen höher und die Wärmeleitfähigkeit ist gleichmäßiger und höher als die der gegossenen Kupferplatten. Die Sollage der Bohrungen nach Höhe und Seite wird genau eingehalten und dadurch eine gleichmäßige Wärmeabfuhr gewährleistet.From DE 29 07 511 a cooling plate is known from a forged or rolled ingot is made and where the cooling channels run vertically Blind holes are, which by mechanical Deep drilling are introduced. The structure of the cooling plate is much denser and more homogeneous than one Cast copper plate; Blowholes, such as those found in cast copper plates occur frequently are excluded. The strength values lie higher and the thermal conductivity is more uniform and higher than that of the cast copper plates. The target position of the holes according to height and side is strictly adhered to and thus an even one Guaranteed heat dissipation.
Die Kühlplatte ist an der dem Ofeninnern zugekehrten Seite mit feuerfesten Steinen oder mit einer feuerfesten Stampfmasse ausgekleidet. Dadurch wird die Kühlfläche der Platte verkleinert und im Falle des Verschleißes bzw. des Verlustes der feuerfesten Ofenauskleidung wird der Wärmeentzug aus dem Ofen begrenzt. Ferner sollte die Kühlung der Platte so intensiv sein, daß die Temperatur der heißen Plattenseite weit unter der Erweichungstemperatur von Kupfer gehalten wird. The cooling plate faces the inside of the furnace Side with refractory bricks or with a refractory Rammed earth lined. This will make the cooling surface the plate downsized and in case of wear or the loss of the refractory furnace lining heat removal from the oven is limited. Furthermore, the cooling of the plate should be so intense that the temperature of the hot plate side is well below the softening temperature of copper is maintained.
Aus der DE-OS 23 62 974 ist ein gekühlter Schachtofen mit einem Stahlmantel bekannt, mit dessen Innenseite Kühlplatten mit im wesentlichen lotrechten inneren Rohren verbunden sind, die am oberen und unteren Ende der Kühlplatte von dieser aus den Stahlmantel durchsetzen. Die Kühlplatte ist an der vom Stahlmantel abgekehrten Seite mit einem Haltenocken bzw. einer Haltenase versehen, durch den bzw. die ein anderes, in einer im wesentlichen waagerechten Ebene verlaufendes Rohr mit durch den Stahlmantel hindurchgeführten Anschlüssen verläuft, wobei sich zumindest ein Teil der lotrechten Rohre über einen beträchtlichen Teil der lotrechten Abmessung streckt. From DE-OS 23 62 974 is a cooled shaft furnace known with a steel jacket, with the inside Cooling plates with essentially vertical inner Pipes are connected at the top and bottom of the cooling plate from this pass through the steel jacket. The cooling plate is on the side facing away from the steel jacket Side with a retaining cam or nose provided by another, in one pipe running essentially horizontally with connections led through the steel jacket runs, with at least part of the vertical Pipes over a considerable part of the vertical Dimension stretches.
Aus der FR-A 22 30 730 ist ein Kühler für die Verdampfungskühlung eines Hochofens bekannt, der aus einer Platte mit einer quer in der Nähe des Endes der Platte angeordneten Auskragung sowie aus Rohren, die in der Platte sowie in der besagten Auskragung montiert sind, besteht und in denen ein Kühlmittel fließt. Die Ein- und Austrittsenden dieser Rohre sind auf verschiedenen Höhen auf der der Auskragung gegenüberliegenden Seite angeordnet. Das Rohr für den Umlauf des Kühlmittels in der Auskragung ist so gestaltet, daß es in der Auskragung so angeordnet ist, daß die Ein- und Austrittsenden zwischen den Austrittsenden der in der Platte verlegten Rohre liegen.FR-A 22 30 730 is a cooler for the Evaporative cooling of a blast furnace known from a plate with a cross near the end of the Plate arranged cantilever as well as from tubes which in the plate and in the said cantilever are, and in which a coolant flows. The inlet and outlet ends of these pipes are open different heights on the opposite of the overhang Page arranged. The pipe for the circulation of the Coolant in the cantilever is designed so that it is arranged in the cantilever so that the input and Exit ends between the exit ends of the in the Pipe laid pipes lie.
Die Enden der Teile des Umlaufrohres in der Auskragung, die sich im Innern dieser Auskragung befinden, sind in einem Winkel von 2 bis 4° in der Vertikalen angeordnet, so daß der Umlauf des Kühlmittels vom Eintrittsende zum Austrittsende der Rohre steigend ist.The ends of the parts of the circulation pipe in the cantilever, that are inside this projection are in arranged at an angle of 2 to 4 ° in the vertical, so that the circulation of the coolant from the inlet end to Outlet end of the pipes is rising.
Aus der US-4.071,230 sind Kühlelemente für einen Schachtofen bekannt, die an der Innenseite des Ofenpanzers befestigt sind. Das rechteckige Kühlelement setzt sich aus fünf übereinander, auf Lücke angeordneten metallischen Blöcken zusammen, die an zwei vertikal verlaufenden Kühlrohrpaaren mittels geeigneten Befestigungselementen angebracht sind.US-4,071,230 are cooling elements for one Shaft furnace known on the inside of the furnace shell are attached. The rectangular cooling element is made up of five on top of each other, arranged in a gap metallic blocks connected to two vertically running pairs of cooling pipes by means of suitable Fasteners are attached.
Die Rohrpaare mit unterem Kühlwassereintritt und oberem Kühlwassereintritt werden durch Öffnungen in der metallischen Ofenwand geführt, die metallischen Blöcke werden nur an der Außenseite der zum Hochofenpanzer gerichteten Seite gekühlt. The pipe pairs with the lower cooling water inlet and the upper one Cooling water inlets are through openings in the led metallic furnace wall, the metallic blocks only become on the outside of the blast furnace directed side cooled.
Aus der nachveröffentlichten EP 0 705 906 A1 ist eine aus einem geschmiedeten oder gewalzten Kupferrohblock gefertigte Kühlplatte bekannt, bei der zur Kühlung der Randzonen zusätzlich zu den vertikal verlaufenden Sackbohrungen Kühlkanäle eingebracht werden, die als vertikale oder horizontale Sackbohrungen kleineren Durchmessers um die vertikal angeordneten Sackbohrungen in die Ränder eingebracht werden.From the post-published EP 0 705 906 A1 is one of a forged or rolled copper ingot manufactured cooling plate is known in which to cool the Border zones in addition to the vertical ones Blind holes cooling channels are introduced, which as vertical or horizontal blind holes smaller Diameter around the vertically arranged blind holes into the edges.
Nachteilig bei diesen gewalzten oder geschmiedeten Kupferkühlplatten ist jedoch, daß die Tragfähigkeit des Mauerwerkes bzw. des Vormauerwerkes an den Kopfenden der Kühlplatte nicht optimal ist und dadurch auch die Standzeiten der feuerfesten Stampfmassen bzw. ff-Steine nicht ausreichend ist.A disadvantage of these rolled or forged Copper cooling plates, however, is that the load capacity of the Masonry or the masonry at the head ends the cooling plate is not optimal and therefore the Service life of the refractory ramming masses or ff stones is not sufficient.
Die Aufgabe der Erfindung besteht deshalb darin, eine Kühlplatte zu schaffen, bei der die verstärkten Kopfenden in das Kühlsystem des Schacktofens einbezogen werden und die Wärmeabfuhr in diesem Bereich der Platten ebenfalls gleichmäßig und homogen erfolgt, so daß auch dort eine verbesserte Kühlung der feuerfesten Ofenauskleidung und des Ofenpanzers gewährleistet wird.The object of the invention is therefore a To create a cooling plate with the reinforced head ends in the cooling system of the pocket oven be involved and the Heat dissipation in this area of the plates as well takes place evenly and homogeneously, so that there too improved cooling of the refractory furnace lining and of the furnace is guaranteed.
Die Lösung der Aufgabe erfolgt in der Weise, wie es in
in den unabhängigen Ansprüchen 1 und 3
angegeben ist. Eine weitere vorteilhafte Ausgestaltung
der Erfindung ist im Unteranspruch 2
aufgeführt.The task is solved in the way it is in
in
Erfindungsgemäß werden daher in die geschmiedete oder gewalzte Kupferkühlplatte im oberen bzw. unteren Bereich ein zusätzliches Kühlelement lösbar angebracht, in das vertikale und horizontale Sackbohrungen eingebracht werden. Diese vertikalen und horizontalen Sackbohrungen werden in bekannter Weise endseitig durch verschweißte oder verlötete Stopfen dicht verschlossen und über Kupferrohrstutzen mit dem Kühlsystem des Hochofens verbunden.According to the invention are therefore in the forged or rolled copper cooling plate in the upper or lower Area an additional cooling element detachably attached, in the vertical and horizontal blind holes be introduced. These vertical and horizontal Blind holes are through at the end in a known manner welded or soldered plugs tightly closed and via copper pipe socket with the cooling system of the Blast furnace connected.
Anstelle eines lösbaren Kühlelementes kann eine Wulst für das feuerfeste Mauerwerk auch aus dem Kupferrohblock geschmiedet werden, das Bohren der vertikalen und horizontalen Kühlrohre in diesen Wulst erfolgt in der bekannten Art und Weise.Instead of a detachable cooling element, a bead can be used for fireproof masonry also from the rough copper block be forged, drilling the vertical and horizontal cooling tubes in this bead takes place in the known way.
Die Erfindung wird anhand von schematischen Ausführungszeichnungen näher erläutert.The invention is based on schematic drawings explained in more detail.
Es zeigen:
- Fig. 1
- einen Längsschnitt durch die Kühlplatte
- Fig. 2
- einen Querschnitt durch die Kühlplatte mit einem lösbar angebrachten Kühlelement
- Fig. 3
- einen Querschnitt durch die Kühlplatte mit einem ausgeschmiedeten Wulst.
- Fig. 1
- a longitudinal section through the cooling plate
- Fig. 2
- a cross section through the cooling plate with a releasably attached cooling element
- Fig. 3
- a cross section through the cooling plate with a forged bead.
Fig. 1 zeigt einen Längsschnitt durch die Kühlplatte (1) mit beispielsweise vier vertikal angeordneten Sackbohrungen (2, 3) sowie mit den in dem Kühlelement (4) eingebrachten vertikalen (5) und horizontalen (6) Sackbohrungen.Fig. 1 shows a longitudinal section through the cooling plate (1) with, for example, four vertically arranged blind holes (2, 3) and with the in the cooling element (4) vertical (5) and horizontal (6) blind holes.
Die Zuführung des Kühlwassers bei den Sackbohrungen (3) erfolgt von unten über die mit den Kühlmittelversorgungsleitungen verbundenen Rohransätzen (2), bei den vertikalen und horizontalen Sackbohrungen (5, 6) des Kühlelementes (4) ebenfalls über Rohrstücke (2). Die Kühlkreisläufe der Kühlplatte (1) und des Kühlelementes (4) werden als getrennte Kühlkreisläufe an das Kühlsystem des Hochofens angeschlossen.Cooling water supply at the blind holes (3) takes place from below via the coolant supply lines connected pipe lugs (2), in the vertical and horizontal blind bores (5, 6) of the Cooling element (4) also via pipe sections (2). The Cooling circuits of the cooling plate (1) and the cooling element (4) are supplied as separate cooling circuits to the Blast furnace cooling system connected.
Fig. 2 zeigt einen Schnitt durch die Kühlplatte (1) mit den vertikal angeordneten Sackbohrungen (3), die in bekannter Weise am unteren Ende durch Schweiß- bzw. Lötstellen verschlossen sind. Die Kühlwasserzu- bzw. abfuhr erfolgt über die Rohrstücke (2).Fig. 2 shows a section through the cooling plate (1) the vertically arranged blind holes (3), which are known Way at the lower end by welding or soldering points are closed. The cooling water supply or discharge takes place via the pipe sections (2).
Im oberen Teil der Kühlplatte (1) ist ein lösbares Kühlsegment (4) angebracht, in das vertikale (5) und horizontale Sackbohrungen (6) eingebracht sind. Die horizontalen Sackbohrungen (6) werden auch in der Kühlplatte (1) angeordnet, um die Kühlwasserzu- und abfuhr über die Rohransätze (2) durch die Wand des Hochofenpanzers (10) zu gewährleisten.In the upper part of the cooling plate (1) there is a detachable one Cooling segment (4) attached in the vertical (5) and horizontal blind holes (6) are introduced. The Horizontal blind holes (6) are also in the cooling plate (1) arranged to the cooling water supply and discharge over the pipe lugs (2) through the wall of the blast furnace (10) to ensure.
Für das Einbringen von Feuerfest-Material, entweder Steine oder Spritz-/Stampfmassen, sind auf der dem Ofeninneren zugewandten Seite in die Kühlplatte (1) und in das Kühlelement (4) Nuten (8) eingearbeitet, die jeweils durch Stege (7) begrenzt werden.For the introduction of refractory material, either Stones or spray / ramming masses are on the Inside the furnace facing the cooling plate (1) and grooves (8) are incorporated into the cooling element (4) are each limited by webs (7).
Fig. 3 zeigt eine Kühlplatte (1) mit einem aus dem Rohblock ausgeschmiedeten Wulst (9), in dem vertikale (5) und horizontale (6) Sackbohrungen eingebracht sind. Auch hier sind die horizontalen Sackbohrungen (6) über Rohransätze (2) durch die Wand des Hochofenpanzers (10) mit dem Kühlkreislauf des Hochofens verbunden. Fig. 3 shows a cooling plate (1) with one from the ingot forged bead (9) in which vertical (5) and horizontal (6) blind holes are made. The horizontal blind bores (6) are also over here Pipe lugs (2) through the wall of the blast furnace shell (10) connected to the blast furnace cooling circuit.
- 11
- KühlplatteCooling plate
- 22nd
- Rohransätze/RohrstückePipe lugs / pipe pieces
- 33rd
- Sackbohrungen in 1Blind holes in 1
- 44th
- KühlsegmentCooling segment
- 55
- Sackbohrungen in 4 bzw. in 9Blind holes in 4 or 9
- 66
- Sackbohrungen in 1, 4 bzw. 9Blind holes in 1, 4 and 9
- 77
- StegeWalkways
- 88th
- NutenGrooves
- 99
- Verstärktes Kühlsegment/WulstReinforced cooling segment / bead
- 1010th
- HochofenpanzerBlast furnace tanks
Claims (3)
- Cooling plate with reinforced head ends for shaft furnaces, in particular blast furnaces, equipped with a fireproof lining,
consisting of copper or a low-alloy copper alloy with coolant channels located in its interior, whereby the cooling plate is manufactured from a forged or rolled raw ingot, the cooling channels are vertically running blind holes and whereby webs and grooves are integrated on the side facing the inside of the shaft furnace,
characterized in thaton the cooling plate (1) in its upper or lower area a cooling segment (4) with webs (7) and grooves (8) and with vertically running blind holes (5) is fixed detachably,that each of the vertical blind holes (5) is connected at the end with horizontally running blind holes (6) and leads into horizontally running pipe sections (2) which are connected to the cooling circuit of the shaft furnace. - Cooling plate with a reinforced head end for shaft furnaces, in particular blast furnaces, equipped with a fireproof lining, consisting of copper or a low-alloy copper alloy with coolant channels located in its interior, whereby the cooling plate is manufactured from a forged or rolled raw ingot, the cooling channels are vertically running blind holes, whereby webs and grooves are integrated on the side facing the inside of the shaft furnace,
characterized in that
in a bulge (9) forged out of the raw ingot in the upper or lower area of the cooling plate (1), vertically running blind holes (5) and horizontally running blind holes (6) are located and lead into horizontally running pipe sections (2) which are connected to the cooling circuit of the shaft furnace. - Cooling plate according to claim 1 or claim 2,
characterized in that
the cooling element (4) has a rectangular or square shape.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19503912A DE19503912C2 (en) | 1995-02-07 | 1995-02-07 | Cooling plate for shaft furnaces, especially blast furnaces |
| DE19503912 | 1995-02-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0731180A1 EP0731180A1 (en) | 1996-09-11 |
| EP0731180B1 true EP0731180B1 (en) | 1999-06-16 |
Family
ID=7753323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95117747A Revoked EP0731180B1 (en) | 1995-02-07 | 1995-11-10 | Stove cooler for shaft furnaces |
Country Status (15)
| Country | Link |
|---|---|
| US (1) | US5676908A (en) |
| EP (1) | EP0731180B1 (en) |
| JP (1) | JP3855133B2 (en) |
| KR (1) | KR100386546B1 (en) |
| CN (1) | CN1051577C (en) |
| AT (1) | ATE181368T1 (en) |
| AU (1) | AU713079B2 (en) |
| BR (1) | BR9600246A (en) |
| CA (1) | CA2168936A1 (en) |
| DE (2) | DE19503912C2 (en) |
| GE (1) | GEP20002037B (en) |
| MX (1) | MX9600492A (en) |
| RU (1) | RU2144570C1 (en) |
| UA (1) | UA42725C2 (en) |
| ZA (1) | ZA96418B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7537724B2 (en) | 2002-08-20 | 2009-05-26 | Siemens Vai Metals Technologies Gmbh & Co. | Cooling plate for metallurgic furnaces |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0741190B1 (en) * | 1995-05-05 | 2001-09-12 | SMS Demag AG | Cooling plates for shaft furnaces |
| DE29611704U1 (en) * | 1996-07-05 | 1996-10-17 | MAN Gutehoffnungshütte AG, 46145 Oberhausen | Cooling plate for metallurgical furnaces |
| NL1005114C2 (en) * | 1997-01-29 | 1998-07-30 | Hoogovens Staal Bv | Refractory wall, metallurgical vessel comprising such a refractory wall and method using such a refractory wall. |
| DE19727008C2 (en) * | 1997-06-25 | 2002-05-23 | Sms Demag Ag | Cooling plates for shaft furnaces |
| DE19751356C2 (en) * | 1997-11-20 | 2002-04-11 | Sms Demag Ag | Cooling elements for shaft furnaces |
| LU90195B1 (en) * | 1998-01-15 | 1999-07-16 | Wurth Paul Sa | Tapping gutter for an iron smelter |
| JPH11293312A (en) * | 1998-02-13 | 1999-10-26 | Nkk Corp | Stave for metallurgical furnace |
| DE19816867A1 (en) * | 1998-04-16 | 1999-10-21 | Schloemann Siemag Ag | Blast furnace |
| FI109937B (en) * | 1999-05-26 | 2002-10-31 | Outokumpu Oy | A process for manufacturing a composite cooling element for a metallurgical reactor melt compartment and a composite cooling element for the process |
| US6280681B1 (en) | 2000-06-12 | 2001-08-28 | Macrae Allan J. | Furnace-wall cooling block |
| DE10049707A1 (en) * | 2000-10-07 | 2002-04-11 | Sms Demag Ag | Cooling element used in blast furnaces comprises a region through which the coolant passes with an arrangement of internal coolant-conveying channels extending via a mouth region of tubular pieces into the edge region of the cooling element |
| FI117768B (en) * | 2000-11-01 | 2007-02-15 | Outokumpu Technology Oyj | Heat sink |
| AT410717B (en) * | 2001-10-17 | 2003-07-25 | Voest Alpine Ind Anlagen | COOLING PLATE WITH REINFORCEMENT PART |
| KR100762486B1 (en) * | 2001-10-26 | 2007-10-02 | 주식회사 포스코 | Device for removing skull sticked to shaft stack of electric furnace |
| FI116317B (en) * | 2003-06-12 | 2005-10-31 | Outokumpu Oy | Cooling element and process for producing a cooling element |
| FR2891981B1 (en) * | 2005-10-10 | 2008-12-05 | Fai Production Soc Par Actions | CONTACT PLATE FOR ELECTROMETALLURGY OVEN ELECTRODE AND METHOD FOR MANUFACTURING SUCH PLATE |
| CN101839640B (en) * | 2010-03-15 | 2012-03-14 | 中国恩菲工程技术有限公司 | Self-heating smelting furnace |
| LU92346B1 (en) * | 2013-12-27 | 2015-06-29 | Wurth Paul Sa | Stave cooler for a metallurgical furnace and method for protecting a stave cooler |
| LU92515B1 (en) * | 2014-08-11 | 2016-02-12 | Wurth Paul Sa | Blast furnace cooling plate with integrated wear detection system |
| LU100073B1 (en) * | 2017-02-09 | 2018-10-02 | Wurth Paul Sa | Cooling Plate for Metallurgical Furnace |
| CN109489411A (en) * | 2018-12-29 | 2019-03-19 | 广州立中锦山合金有限公司 | The coldplate of shaft furnace |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US251882A (en) * | 1882-01-03 | Wagon or lifting jack | ||
| NL7217255A (en) * | 1972-12-19 | 1974-06-21 | ||
| NL7303769A (en) * | 1973-03-19 | 1974-09-23 | ||
| SU439178A1 (en) * | 1973-05-25 | 1977-11-25 | Всесоюзный Научно-Исследовательский И Проектный Институт По Очистке Технологических Газов, Сточных Вод И Использованию Вторичных Энергоресурсов Предприятий Черной Металлургии | Blast furnace cooler |
| US4071230A (en) * | 1977-03-23 | 1978-01-31 | Anatoly Vasilievich Zherdev | Contrivance for the protection of the walls of a shaft furnace from the heat effect of metallurgical process |
| SU1035069A1 (en) * | 1978-01-20 | 1983-08-15 | Всесоюзный Научно-Исследовательский И Проектный Институт По Очистке Технологических Газов,Сточных Вод И Использованию Вторичных Энергоресурсов Предприятий Черной Металлургии | Cooler for metallurgical furnaces |
| DE2907511C2 (en) * | 1979-02-26 | 1986-03-20 | Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover | Cooling plate for shaft furnaces, in particular blast furnaces, and method for producing the same |
| FR2493871A1 (en) * | 1980-11-07 | 1982-05-14 | Usinor | COOLING PLATES FOR BLAST FURNACES |
| DE3925280A1 (en) * | 1989-07-31 | 1991-02-07 | Gutehoffnungshuette Man | LIQUID-FLOWED COOLING ELEMENT FOR SHAFT OVENS |
| FR2654438B1 (en) * | 1989-11-14 | 1994-04-01 | Chavanne Ketin | COOLING PLATES FOR BLAST FURNACES AND COOLING INSTALLATION USING THIS TYPE OF PLATES. |
| CN2215492Y (en) * | 1994-06-28 | 1995-12-20 | 冶金工业部重庆钢铁设计研究院 | Convex platform inclined cooling wall |
-
1995
- 1995-02-07 DE DE19503912A patent/DE19503912C2/en not_active Revoked
- 1995-11-10 DE DE59506237T patent/DE59506237D1/en not_active Revoked
- 1995-11-10 AT AT95117747T patent/ATE181368T1/en not_active IP Right Cessation
- 1995-11-10 EP EP95117747A patent/EP0731180B1/en not_active Revoked
- 1995-11-30 KR KR1019950045357A patent/KR100386546B1/en not_active IP Right Cessation
- 1995-12-07 US US08/568,947 patent/US5676908A/en not_active Expired - Fee Related
- 1995-12-21 UA UA95125412A patent/UA42725C2/en unknown
-
1996
- 1996-01-17 AU AU42018/96A patent/AU713079B2/en not_active Ceased
- 1996-01-18 ZA ZA96418A patent/ZA96418B/en unknown
- 1996-01-29 BR BR9600246A patent/BR9600246A/en not_active IP Right Cessation
- 1996-01-30 JP JP04652896A patent/JP3855133B2/en not_active Expired - Fee Related
- 1996-02-01 CN CN96102577A patent/CN1051577C/en not_active Expired - Fee Related
- 1996-02-05 RU RU96102340/02A patent/RU2144570C1/en not_active IP Right Cessation
- 1996-02-06 CA CA002168936A patent/CA2168936A1/en not_active Abandoned
- 1996-02-06 GE GEAP19963041A patent/GEP20002037B/en unknown
- 1996-02-06 MX MX9600492A patent/MX9600492A/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7537724B2 (en) | 2002-08-20 | 2009-05-26 | Siemens Vai Metals Technologies Gmbh & Co. | Cooling plate for metallurgic furnaces |
Also Published As
| Publication number | Publication date |
|---|---|
| AU713079B2 (en) | 1999-11-25 |
| GEP20002037B (en) | 2000-04-10 |
| BR9600246A (en) | 1998-01-27 |
| JP3855133B2 (en) | 2006-12-06 |
| EP0731180A1 (en) | 1996-09-11 |
| MX9600492A (en) | 1997-01-31 |
| CN1133890A (en) | 1996-10-23 |
| DE59506237D1 (en) | 1999-07-22 |
| KR960031628A (en) | 1996-09-17 |
| DE19503912A1 (en) | 1996-08-08 |
| CA2168936A1 (en) | 1996-08-08 |
| US5676908A (en) | 1997-10-14 |
| AU4201896A (en) | 1996-08-15 |
| RU2144570C1 (en) | 2000-01-20 |
| ZA96418B (en) | 1996-07-25 |
| UA42725C2 (en) | 2001-11-15 |
| DE19503912C2 (en) | 1997-02-06 |
| CN1051577C (en) | 2000-04-19 |
| ATE181368T1 (en) | 1999-07-15 |
| KR100386546B1 (en) | 2003-08-09 |
| JPH08246012A (en) | 1996-09-24 |
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