WO2001088452A1 - Water cooled transport roller for a roller-hearth kiln - Google Patents
Water cooled transport roller for a roller-hearth kiln Download PDFInfo
- Publication number
- WO2001088452A1 WO2001088452A1 PCT/EP2001/005516 EP0105516W WO0188452A1 WO 2001088452 A1 WO2001088452 A1 WO 2001088452A1 EP 0105516 W EP0105516 W EP 0105516W WO 0188452 A1 WO0188452 A1 WO 0188452A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- water
- base body
- shaft
- transport roller
- guide tube
- 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.)
- Ceased
Links
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
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/02—Skids or tracks for heavy objects
- F27D3/026—Skids or tracks for heavy objects transport or conveyor rolls for furnaces; roller rails
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces
- F27B3/10—Details, accessories or equipment, e.g. dust-collectors, specially adapted for hearth-type furnaces
- F27B3/24—Cooling arrangements
Definitions
- the invention relates to a water-cooled transport roller for a roller hearth furnace with a cylindrical base body, thermal insulation on the outer circumference of the base body and a guide tube for cooling water arranged centrally in the base body, the cooling water being able to be fed to the guide tube at one end of the rotatably mounted base body, flowing through the guide tube and after a deflection at the outlet end of the guide tube flows back in an annular space between the guide tube and the base body.
- the guide tube is tapered towards the water inlet-soapy end and held in the base body with the interposition of a spacer.
- the water is supplied by means of a water inlet pipe which is pushed into the tapered connection end of the guide pipe.
- the water flowing back flows between webs of the spacer and emerges from an end opening of a connection element inserted into the base body.
- a deflection head with radial bores is connected, which is clamped on a mandrel.
- the water supply especially the water supply, proves to be the weak point of the known transport roller.
- the built in the basic body for water management Guide tube consists of a thin-walled tube of great length, whose exact alignment in the axis of rotation of the base body cannot always be guaranteed.
- the water inlet tube inserted into the guide tube is exposed to considerable shear stress, which leads to damage to the water inlet tube after a short time.
- Even a brief interruption in the water supply or even a malfunction in the water supply immediately results in irreversible damage to the transport roller due to the high furnace temperatures. The described course of damage occurs suddenly and cannot be foreseen during the operation of the transport roller.
- the object of the invention is to further develop a water-cooled transport roller of the structure described at the outset in such a way that a premature defect in the cooling water supply is largely excluded.
- a shaft is fastened to the base body and has a receptacle for the end of the guide tube on the water inlet side, a central bore aligned with the axis of rotation of the base body for supplying cooling water and drainage channels opening into a water collection chamber for a water pressure flow , and that a water distributor is rotatably connected to the shaft, through which the cooling water can be fed into the central bore and the water return flow can be drawn off from the water collection space.
- the teaching according to the invention starts with the previously described damage analysis of the known embodiment.
- the rotary feedthrough required for the water inlet and outlet is moved out of the area of the guide tube into an assembly consisting of a shaft and a water distributor head.
- the elements of this assembly are massive, precisely machined components. It can be ensured that the connecting elements of the components, which are rotatable relative to one another, are aligned exactly while adhering to narrow tolerances.
- the end of the water-bearing guide tube is fitted in the shaft so that it cannot rotate. Any offset to the axis of rotation of the transport roller and / or a curvature of the guide tube is therefore harmless for the function of the arrangement according to the invention.
- the water distributor head has a water supply pipe which is aligned with the axis of rotation and which engages at its end in a rotatable manner in the central bore of the shaft.
- the shaft has a cylindrical pin which is aligned with the central bore and which passes through a shaft feedthrough of the water distributor head and can be connected to a device for the cooling water supply in a rotatable manner.
- the water distribution head expediently has a blind bore in the longitudinal direction for the water pressure flow, the diameter of which is larger than the outside diameter of the water supply pipe or of the cylinder journal.
- the shaft can be screwed onto the end face of the base body.
- it has a flange which can be fastened to the end face of the base body and a connection end which is fitted into the base body and which centers the shaft on the base body.
- the invention teaches that a spacer with radial webs is arranged at the water outlet end of the guide tube and that a hollow shaft is inserted into the base body, which has a receiving space for the spacer.
- the water emerges axially from the guide tube and is deflected in the receiving space into which the spacer is inserted.
- the hollow shaft can have a shaft extension for connecting a drive device.
- the thermal insulation on the outside of the base body consists of a fiber mat made of high-temperature-resistant inorganic fibers, which is clamped under elastic compression between the base body and an outer tube forming the tread.
- the outer tube is fastened in a manner known per se to webs which are welded onto the base body.
- Suitable fibers are, for example, ceramic fibers, glass fibers and Si0 2 fibers.
- FIG. 1 shows the longitudinal section through a water-cooled transport roller designed according to the invention for a roller hearth furnace
- FIG. 2 shows the end of the transport roller on the cooling water inlet side in an enlarged view compared to FIG. 1, likewise in longitudinal section.
- the basic design of the transport roller shown in the figures consists of a cylindrical base body 1, thermal insulation 2 on the outer circumference of the base body 1 and a guide tube 3 for cooling water arranged centrally in the base body 1.
- the cooling water can be fed to the guide tube 3 at one end of the rotatably mounted base body 1, flows through the guide tube 3 and, after a deflection, flows in one at the outlet-side end of the guide tube
- a shaft 5 is fastened to the base body 1, which has a receptacle for the water inlet end 6 of the guide tube, a central bore 7 aligned with the axis of rotation of the base body 1 for the supply of cooling water and drainage channels 9 opening into a water collection space 8 for a water pressure flow ,
- the drainage channels 9 consist of bores which are arranged concentrically around the central bore 7.
- the water collection space 8 consists of a cylindrical space that is covered by a lid 10 is closed.
- a water distributor head 11 is rotatably connected to the shaft 5, through which the cooling water can be fed into the central bore 7 and the water return flow can be drawn off from the water collection space 8.
- the water distributor head 11 has a water supply pipe 12 that is aligned with the axis of rotation and that engages at its end in a rotatable manner in the central bore 7 of the shaft 5.
- a small gap is expediently set up between the shaft end and the central bore 7, so that a wear-free rotary movement of the water supply pipe 12 relative to the shaft 5 is ensured. Leakage and the associated low backmixing between the water inlet and the hot water return can be tolerated without any problems if the water throughput is adequate.
- a sealing arrangement between the water supply pipe 12 and the central bore 7 should not, however, be excluded.
- the water-distributing head 11 is rotatably supported on the cover, which is designed as a bearing cover with correspondingly machined bearing surfaces.
- the shaft 5 has a flange which can be fastened with screws 15 on the end face of the base body 1 and a connection end which is fitted into the base body 1.
- a spacer 16 with radial webs 17 is arranged at the water outlet end of the guide tube 3.
- a hollow shaft 18 is inserted into the base body 1 and has a receiving space 19 for the spacer.
- the guide tube 3 is rotatably and centered by the spacer 16.
- the hollow shaft 18 can be welded to the base body 1 or flanged to the front side of the base body 1 with screws in a manner corresponding to the shaft 5 on the cooling water inlet side.
- the cooling water emerges from the end face of the guide tube 3 and is deflected in the receiving space 19 of the hollow shaft 18.
- the hollow shaft 18 also has a shaft extension for connecting a drive device.
- the thermal insulation 2 consists of a fiber mat made of high temperature-resistant inorganic fibers, for example ceramic fibers or Si0 2 fibers.
- the fiber mat is clamped under elastic compression between the base body 1 and an outer tube 20 which forms the tread and is composed of tube segments.
- the outer tube 20 or the tube segments are fastened to webs 21, which are welded onto the outside of the base body 1.
- the base body 1 is mounted on sections 22 on both sides of the thermal insulation area.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rollers For Roller Conveyors For Transfer (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Tunnel Furnaces (AREA)
Abstract
Description
"Wassergekühlte Transportrolle für einen Rollenherdofen" "Water-cooled transport roller for a roller hearth furnace"
Beschreibung :Description :
Die Erfindung betrifft eine wassergekühlte Transportrolle für einen Rollenherdofen mit einem zylindrischen Grundkörper, einer Wärmedämmung am äußeren Umfang des Grundkörpers und einem zentrisch im Grundkörper angeordneten Leitrohr für Kühlwasser, wobei das Kühlwasser an einem Ende des drehbar gelagerten Grundkörpers dem Leitrohr zuführbar ist, das Leitrohr durchströmt und nach einer Umlenkung am austrittsseitigen Ende des Leitrohres in einem Ringraum zwischen Leitrohr und Grundkörper zurückströmt.The invention relates to a water-cooled transport roller for a roller hearth furnace with a cylindrical base body, thermal insulation on the outer circumference of the base body and a guide tube for cooling water arranged centrally in the base body, the cooling water being able to be fed to the guide tube at one end of the rotatably mounted base body, flowing through the guide tube and after a deflection at the outlet end of the guide tube flows back in an annular space between the guide tube and the base body.
Gemäß einer aus der Praxis bekannten Ausführung, von dem die Erfindung ausgeht, ist das Leitrohr zum wassereinlauf- seifigen Ende verjüngt ausgebildet und unter Zwischenschaltung eines Distanzhalters im Grundkörper gehalten. Die Wasserzuführung erfolgt mittels eines Wasserzulaufrohres, das in das verjüngte Anschlussende des Leitrohres einge- schoben ist. Das zurückfließende Wasser strömt zwischen Stegen des Distanzhalters hindurch und tritt aus einer stirnseitigen Öffnung eines in den Grundkörper eingesetzten Anschlusselementes aus. Am anderen Ende des Leitrohres ist ein Umlenkkopf mit radialen Bohrungen angeschlossen, der auf einem Dorn aufgespannt ist. Die Wasserführung, insbesondere die Wasserzuführung, erweist sich als Schwachstelle der bekannten Transportrolle. Relativbewegungen zwischen dem im Grundkörper gehaltenen und mit dem Grundkörper rotierenden Leitrohr und dem drehfest angeordneten Wasser- zulaufrohr führen zu einem Verschleiß des Wasserzulauf- rohres. Das in den Grundkörper zur Wasserführung eingebaute Leitrohr besteht aus einem dünnwandigen Rohr großer Länge, dessen exakte Ausrichtung in der Rotationsachse des Grundkörpers nicht immer gewährleistet werden kann. Bei einem Versatz oder einer leichten Krümmung des Leitrohrendes ist das in das Leitrohr eingeschobene Wasserzulaufröhr einer erheblichen Scherbeanspruchung ausgesetzt, die nach kurzer Zeit zu einem Schaden des Wasserzulaufrohres führt. Bereits eine kurzzeitige Unterbrechung der Wasserzuführung oder auch nur eine Störung in der Wasserzuführung hat aufgrund der hohen Ofentemperaturen sofort eine irreversible Schädigung der Transportrolle zur Folge. Der beschriebene Schadensverlauf tritt plötzlich auf und ist während des Betriebs der Transportrolle nicht absehbar.According to an embodiment known from practice, from which the invention is based, the guide tube is tapered towards the water inlet-soapy end and held in the base body with the interposition of a spacer. The water is supplied by means of a water inlet pipe which is pushed into the tapered connection end of the guide pipe. The water flowing back flows between webs of the spacer and emerges from an end opening of a connection element inserted into the base body. At the other end of the guide tube, a deflection head with radial bores is connected, which is clamped on a mandrel. The water supply, especially the water supply, proves to be the weak point of the known transport roller. Relative movements between the guide tube held in the base body and rotating with the base body and the non-rotatably arranged water inlet tube lead to wear of the water inlet tube. The built in the basic body for water management Guide tube consists of a thin-walled tube of great length, whose exact alignment in the axis of rotation of the base body cannot always be guaranteed. In the event of an offset or a slight curvature of the end of the guide tube, the water inlet tube inserted into the guide tube is exposed to considerable shear stress, which leads to damage to the water inlet tube after a short time. Even a brief interruption in the water supply or even a malfunction in the water supply immediately results in irreversible damage to the transport roller due to the high furnace temperatures. The described course of damage occurs suddenly and cannot be foreseen during the operation of the transport roller.
Der Erfindung liegt die Aufgabe zugrunde, eine wassergekühlte Transportrolle des eingangs beschriebenen Aufbaus so weiter auszubilden, dass ein vorzeitiger Defekt in der Kühlwasserführung weitgehend ausgeschlossen ist.The object of the invention is to further develop a water-cooled transport roller of the structure described at the outset in such a way that a premature defect in the cooling water supply is largely excluded.
Die Aufgabe wird erfindungsgemäß dadurch gelöst, dass an dem Grundkörper ein Schaft befestigt ist, der eine Aufnahme für das wassereinlaufseitige Ende des Leitrohres, eine mit der Rotationsachse des Grundkörpers fluchtende Zentralbohrung für Zuführung von Kühlwasser sowie in einen Wasser- saπvmelraum mündende Abflusskanäle für einen Wasserruckfluss aufweist, und dass an den Schaft ein Wasserverteiler drehbeweglich angeschlossen ist, durch den das Kühlwasser in die Zentralbohrung einspeisbar und der Wasserruckfluss aus dem Wassersammeiraum abziehbar ist. Die erfindungsgemäße Lehre setzt ein mit der zuvor beschriebenen Schadensanalyse der bekannten Ausführung. Bei der erfindungsgemäßen Anord- nung ist die für den Wasserzulauf und -ablauf erforderliche Drehdurchführung aus dem Bereich des Leitrohres heraus in eine Baugruppe verlagert, die aus einem Schaft und einem Wasserverteilerkopf besteht . Bei den Elementen dieser Bau- gruppe handelt es sich um massive, präzise bearbeitete Bauteile. Dabei kann gewährleistet werden, dass die zueinander drehbeweglichen Anschlusselemente der Bauteile exakt unter Einhaltung enger Toleranzen fluchten. Das Ende des wasserführenden Leitrohres ist drehfest in den Schaft eingepasst. Ein etwaiger Versatz zur Rotationsachse der Transportrolle und/oder eine Krümmung des Leitrohres ist für die Funktion der erfindungsgemäßen Anordnung daher unschädlich.The object is achieved according to the invention in that a shaft is fastened to the base body and has a receptacle for the end of the guide tube on the water inlet side, a central bore aligned with the axis of rotation of the base body for supplying cooling water and drainage channels opening into a water collection chamber for a water pressure flow , and that a water distributor is rotatably connected to the shaft, through which the cooling water can be fed into the central bore and the water return flow can be drawn off from the water collection space. The teaching according to the invention starts with the previously described damage analysis of the known embodiment. In the arrangement according to the invention The rotary feedthrough required for the water inlet and outlet is moved out of the area of the guide tube into an assembly consisting of a shaft and a water distributor head. The elements of this assembly are massive, precisely machined components. It can be ensured that the connecting elements of the components, which are rotatable relative to one another, are aligned exactly while adhering to narrow tolerances. The end of the water-bearing guide tube is fitted in the shaft so that it cannot rotate. Any offset to the axis of rotation of the transport roller and / or a curvature of the guide tube is therefore harmless for the function of the arrangement according to the invention.
Für die weitere konstruktive Ausgestaltung der aus Schaft und Wasserverteilerkopf bestehenden Baugruppe ergeben sich verschiedene Möglichkeiten. Eine Ausführungsform sieht vor, dass der Wasserverteilerkopf ein mit der Rotationsachse fluchtendes Wasserzuführrohr aufweist, das an seinem Ende drehbeweglich in die Zentralbohrung des Schaftes eingreift. Gemäß einer anderen Ausführung weist der Schaft einen mit der Zentralbohrung fluchtenden Zylinderzapfen auf, der eine Wellendurchführung des Wasserverteilerkopfes durchfasst und drehbeweglich an eine Einrichtung für die Kühlwasserzuführung anschließbar ist. Bei beiden Ausführungen weist der Wasserverteilerkopf zweckmäßig für den Wasserruckfluss eine Sackbohrung in Längsrichtung auf, deren Durchmesser größer ist als der Außendurchmesser des Wasserzuführrohres bzw. des Zylinderzapfens. Das rücklaufende Wasser durchströmt einen von der Sackbohrung und der Wasserzuleitung begrenz- ten Ringraum und tritt durch eine in die Sackbohrung einmündende Querbohrung aus . Der Schaft ist gemäß einer vorteilhaften Ausgestaltung der Erfindung an der Stirnseite des Grundkörpers anschraubbar. Er weist zu diesem Zweck einen an der Stirnseite des Grundkörpers befestigbaren Flansch und ein in den Grund- körper eingepasstes Anschlussende auf, welches den Schaft am Grundkörper zentriert.There are various possibilities for the further structural design of the assembly consisting of the shaft and water distribution head. One embodiment provides that the water distributor head has a water supply pipe which is aligned with the axis of rotation and which engages at its end in a rotatable manner in the central bore of the shaft. According to another embodiment, the shaft has a cylindrical pin which is aligned with the central bore and which passes through a shaft feedthrough of the water distributor head and can be connected to a device for the cooling water supply in a rotatable manner. In both versions, the water distribution head expediently has a blind bore in the longitudinal direction for the water pressure flow, the diameter of which is larger than the outside diameter of the water supply pipe or of the cylinder journal. The returning water flows through an annular space delimited by the blind bore and the water supply line and exits through a transverse bore that opens into the blind bore. According to an advantageous embodiment of the invention, the shaft can be screwed onto the end face of the base body. For this purpose, it has a flange which can be fastened to the end face of the base body and a connection end which is fitted into the base body and which centers the shaft on the base body.
In weiterer Ausgestaltung lehrt die Erfindung, dass am wasseraustrittseitigen Ende des Leitrohres ein Distanz- halter mit radialen Stegen angeordnet ist und dass in den Grundkörper ein Hohlschaft eingesetzt ist, der einen Auf- nahmeraum für den Distanzhalter aufweist. Bei der beschriebenen Anordnung tritt das Wasser aus dem Leitrohr axial aus und wird in dem Aufnahmeraum, in den der Distanzhalter eingesetzt ist, umgelenkt. Bei dieser Ausführung ist ein großer Austrittsquerschnitt und damit eine druckverlustarme Umlenkung des Wassers gewährleistet. Auch dies trägt zur betriebssicheren Funktion der Kühlwasserführung bei. Der Hohlschaft kann einen Wellenfortsatz zum Anschluss einer Antriebseinrichtung aufweisen.In a further embodiment, the invention teaches that a spacer with radial webs is arranged at the water outlet end of the guide tube and that a hollow shaft is inserted into the base body, which has a receiving space for the spacer. In the arrangement described, the water emerges axially from the guide tube and is deflected in the receiving space into which the spacer is inserted. This design ensures a large outlet cross-section and therefore low pressure loss redirection of the water. This also contributes to the reliable functioning of the cooling water supply. The hollow shaft can have a shaft extension for connecting a drive device.
Die Wärmedämmung an der Außenseite des Grundkörpers besteht gemäß einer bevorzugten Ausführung der Erfindung aus einer Fasermatte aus hochtemperaturbeständigen anorganischen Fasern, die unter elastischer Verdichtung zwischen dem Grundkörper und einem die Lauffläche bildenden Außenrohr eingespannt ist. Die Befestigung des Außenrohres erfolgt in an sich bekannter Weise an Stegen, die auf den Grundkörper aufgeschweißt sind. Als Fasern eignen sich z.B. keramische Fasern, Glasfasern und Si02-Fasern. Im Folgenden wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung erläutert. Es zeigen schematischAccording to a preferred embodiment of the invention, the thermal insulation on the outside of the base body consists of a fiber mat made of high-temperature-resistant inorganic fibers, which is clamped under elastic compression between the base body and an outer tube forming the tread. The outer tube is fastened in a manner known per se to webs which are welded onto the base body. Suitable fibers are, for example, ceramic fibers, glass fibers and Si0 2 fibers. In the following, the invention is explained on the basis of a drawing illustrating only one exemplary embodiment. They show schematically
Fig. 1 den Längsschnitt durch eine erfindungsgemäß ausgebildete wassergekühlte Transportrolle für einen Rollenherdofen,1 shows the longitudinal section through a water-cooled transport roller designed according to the invention for a roller hearth furnace,
Fig. 2 das kühlwassereinlaufseitige Ende der Transport- rolle in einer gegenüber Fig. 1 vergrößerten Darstellung, ebenfalls im Längsschnitt.2 shows the end of the transport roller on the cooling water inlet side in an enlarged view compared to FIG. 1, likewise in longitudinal section.
Die in den Figuren dargestellte Transportrolle besteht in ihrem grundsätzlichen Aufbau aus einem zylindrischen Grund- körper 1, einer Wärmedämmung 2 am äußeren Umfang des Grundkörpers 1 und einem zentrisch im Grundkörper 1 angeordneten Leitrohr 3 für Kühlwasser. Das Kühlwasser ist an einem Ende des drehbar gelagerten Grundkörpers 1 dem Leitrohr 3 zuführbar, durchströmt das Leitrohr 3 und strömt nach einer Umlenkung am austrittsseitigen Ende des Leitrohres in einemThe basic design of the transport roller shown in the figures consists of a cylindrical base body 1, thermal insulation 2 on the outer circumference of the base body 1 and a guide tube 3 for cooling water arranged centrally in the base body 1. The cooling water can be fed to the guide tube 3 at one end of the rotatably mounted base body 1, flows through the guide tube 3 and, after a deflection, flows in one at the outlet-side end of the guide tube
Ringraum 4 zwischen Leitrohr und Grundkörper zurück.Annulus 4 between the guide tube and base body.
An dem Grundkörper 1 ist ein Schaft 5 befestigt, der eine Aufnahme für das wassereinlaufseitige Ende 6 des Leit- rohres, eine mit der Rotationsachse des Grundkörpers 1 fluchtende Zentralbohrung 7 für die Zuführung von Kühlwasser sowie in einen Wassersammeiraum 8 mündende Abflusskanäle 9 für einen Wasserruckfluss aufweist. Die Abflusskanäle 9 bestehen aus Bohrungen, die konzentrisch um die Zentralbohrung 7 angeordnet sind. Der Wassersammeiraum 8 besteht aus einem zylindrischen Raum, der von einem Deckel 10 verschlossen ist. An den Schaft 5 ist ein Wasserverteilerkopf 11 drehbeweglich angeschlossen, durch den das Kühlwasser in die Zentralbohrung 7 einspeisbar und der Wasserruckfluss aus dem Wassersammeiraum 8 abziehbar ist. Insbesondere der vergrößerten Darstellung in Fig. 2 entnimmt man, dass der Wasserverteilerkopf 11 ein mit der Rotationsachse fluchtendes Wasserzuführrohr 12 aufweist, das an seinem Ende drehbeweglich in die Zentralbohrung 7 des Schaftes 5 eingreift. Zwischen dem Schaftende und der Zentralbohrung 7 ist zweckmäßig ein kleiner Spalt eingerichtet, so dass eine verschleißfreie Drehbewegung des Wasserzuführrohres 12 gegenüber dem Schaft 5 gewährleistet ist. Leckagen und damit verbundene geringe Rückvermischungen zwischen dem Wasserzulauf und dem heißen Wasser- rücklauf können bei entsprechender Wasserdurchsatzleistung ohne weiteres hingenommen werden. Eine Dichtungsanordnung zwischen dem Wasserzuführrohr 12 und der Zentralbohrung 7 soll jedoch nicht ausgeschlossen sein. Die drehbewegliche Lagerung des Wasserverteilerkopfes 11 erfolgt an dem Deckel, der als Lagerdeckel mit entsprechend bearbeiteten Lagerflächen ausgebildet ist.A shaft 5 is fastened to the base body 1, which has a receptacle for the water inlet end 6 of the guide tube, a central bore 7 aligned with the axis of rotation of the base body 1 for the supply of cooling water and drainage channels 9 opening into a water collection space 8 for a water pressure flow , The drainage channels 9 consist of bores which are arranged concentrically around the central bore 7. The water collection space 8 consists of a cylindrical space that is covered by a lid 10 is closed. A water distributor head 11 is rotatably connected to the shaft 5, through which the cooling water can be fed into the central bore 7 and the water return flow can be drawn off from the water collection space 8. In particular, from the enlarged illustration in FIG. 2, it can be seen that the water distributor head 11 has a water supply pipe 12 that is aligned with the axis of rotation and that engages at its end in a rotatable manner in the central bore 7 of the shaft 5. A small gap is expediently set up between the shaft end and the central bore 7, so that a wear-free rotary movement of the water supply pipe 12 relative to the shaft 5 is ensured. Leakage and the associated low backmixing between the water inlet and the hot water return can be tolerated without any problems if the water throughput is adequate. A sealing arrangement between the water supply pipe 12 and the central bore 7 should not, however, be excluded. The water-distributing head 11 is rotatably supported on the cover, which is designed as a bearing cover with correspondingly machined bearing surfaces.
Der Fig. 2 entnimmt man ferner, dass der Wasserverteilerkopf 11 für den Wasserruckfluss eine Sackbohrung 13 in Längsrichtung aufweist, deren Durchmesser größer ist als der Außendurchmesser des Wasserzuführrohres 12. In die Sackbohrung 13 mündet eine Querbohrung 14 für den Wasserablauf ein. Der Schaft 5 weist einen an der Stirnseite des Grundkörpers 1 mit Schrauben 15 befestigbaren Flansch und ein in den Grundkörper 1 eingepasstes Anschlussende auf.2 that the water distributor head 11 has a blind bore 13 in the longitudinal direction for the water backflow, the diameter of which is larger than the outer diameter of the water supply pipe 12. A transverse bore 14 for the water drain opens into the blind bore 13. The shaft 5 has a flange which can be fastened with screws 15 on the end face of the base body 1 and a connection end which is fitted into the base body 1.
Den Figuren entnimmt man, dass am wasseraustrittseitigen Ende des Leitrohres 3 ein Distanzhalter 16 mit radialen Stegen 17 angeordnet ist. In den Grundkörper 1 ist ein Hohlschaft 18 eingesetzt, der einen Aufnahmeraum 19 für den Distanzhalter aufweist. Das Leitrohr 3 ist drehfest und durch den Distanzhalter 16 zentriert angeordnet. Der Hohl- schaft 18 kann an den Grundkörper 1 angeschweißt oder in entsprechender Weise wie der kühlwassereinlaufseitige Schaft 5 mit Schrauben an der Stirnseite des Grundkörpers 1 angeflanscht sein. Das Kühlwasser tritt an der Stirnseite des Leitrohres 3 aus und wird im Aufnahmeraum 19 des Hohl- schaftes 18 umgelenkt. Es strömt durch die von den radialen Stegen 17 des Distanzhalters 16 gebildeten Kanälen und fließt in dem Ringraum 4 zwischen Leitrohr 3 und Grundkörper 1 ab, wobei ein Wärmeaustausch einerseits mit dem heißen Grundkörper 1 und andererseits mit dem gekühlten Leitrohr 3 erfolgt. Der Hohlschaft 18 weist im übrigen einen Wellenfortsatz zum Anschluss einer Antriebseinrichtung auf.It can be seen from the figures that a spacer 16 with radial webs 17 is arranged at the water outlet end of the guide tube 3. A hollow shaft 18 is inserted into the base body 1 and has a receiving space 19 for the spacer. The guide tube 3 is rotatably and centered by the spacer 16. The hollow shaft 18 can be welded to the base body 1 or flanged to the front side of the base body 1 with screws in a manner corresponding to the shaft 5 on the cooling water inlet side. The cooling water emerges from the end face of the guide tube 3 and is deflected in the receiving space 19 of the hollow shaft 18. It flows through the channels formed by the radial webs 17 of the spacer 16 and flows out in the annular space 4 between the guide tube 3 and the base body 1, heat being exchanged on the one hand with the hot base body 1 and on the other hand with the cooled guide tube 3. The hollow shaft 18 also has a shaft extension for connecting a drive device.
Die Wärmedämmung 2 besteht aus einer Fasermatte aus hochtemperaturbeständigen anorganischen Fasern, z.B. keramischen Fasern oder Si02-Fasern. Die Fasermatte ist unter elastischer Verdichtung zwischen dem Grundkörper 1 und einem die Lauffläche bildenden, aus Rohrsegmenten zusammen- gesetzten Außenrohr 20 eingespannt. Die Befestigung des Außenrohres 20 bzw. der Rohrsegmente erfolgt an Stegen 21, die außenseitig auf den Grundkörper 1 aufgeschweißt sind. Die Lagerung des Grundkörpers 1 erfolgt an Abschnitten 22 beidseits des Wärmedämmbereiches. The thermal insulation 2 consists of a fiber mat made of high temperature-resistant inorganic fibers, for example ceramic fibers or Si0 2 fibers. The fiber mat is clamped under elastic compression between the base body 1 and an outer tube 20 which forms the tread and is composed of tube segments. The outer tube 20 or the tube segments are fastened to webs 21, which are welded onto the outside of the base body 1. The base body 1 is mounted on sections 22 on both sides of the thermal insulation area.
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP01955281A EP1285209A1 (en) | 2000-05-18 | 2001-05-15 | Water cooled transport roller for a roller-hearth kiln |
| CA002409024A CA2409024A1 (en) | 2000-05-18 | 2001-05-15 | Water cooled transport roller for a roller-hearth kiln |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10024556A DE10024556C2 (en) | 2000-05-18 | 2000-05-18 | Water-cooled transport roller for a roller hearth furnace |
| DE10024556.0 | 2000-05-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2001088452A1 true WO2001088452A1 (en) | 2001-11-22 |
Family
ID=7642649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2001/005516 Ceased WO2001088452A1 (en) | 2000-05-18 | 2001-05-15 | Water cooled transport roller for a roller-hearth kiln |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1285209A1 (en) |
| KR (1) | KR20030028740A (en) |
| CN (1) | CN1429330A (en) |
| CA (1) | CA2409024A1 (en) |
| DE (1) | DE10024556C2 (en) |
| WO (1) | WO2001088452A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2396578A (en) * | 2002-04-16 | 2004-06-30 | Michael Charles Richa Bartlett | Rotational union coupling for a continuous casting roller |
| CN101891265A (en) * | 2010-07-19 | 2010-11-24 | 丁树涛 | Anti-blocking water distribution head for sewage treatment system |
| EP3048072A4 (en) * | 2013-10-22 | 2017-06-14 | Zuiko Corporation | Composite sheet manufacturing device and composite sheet manufacturing method |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1299847C (en) * | 2005-01-29 | 2007-02-14 | 高峰 | Furnace roller thermal insulation protection process |
| FR2884306B1 (en) * | 2005-04-07 | 2007-05-11 | Stein Heurtey | COOLED ROLL FOR HANDLING STEEL PRODUCTS |
| CN102080930B (en) * | 2009-11-27 | 2012-09-26 | 中冶长天国际工程有限责任公司 | Screw shaft and unloading device for rotary hearth furnace |
| DE102010000211A1 (en) * | 2010-01-26 | 2011-07-28 | Atotech Deutschland GmbH, 90537 | Device for transporting plate-shaped substrates in a system for chemical and / or electrochemical treatment |
| CN101943523B (en) * | 2010-09-17 | 2012-07-11 | 北京京杰锐思技术开发有限公司 | a furnace roller |
| CN102649991B (en) * | 2011-02-25 | 2013-08-14 | 上海宝钢设备检修有限公司 | High-temperature-resistant water-cooling furnace bottom roll |
| CN103103603B (en) * | 2011-11-11 | 2015-08-05 | 中国科学院沈阳科学仪器股份有限公司 | A kind of water-cooling shaft that can work under the hot environment of vacuum apparatus for a long time |
| CN102618716B (en) * | 2012-04-18 | 2013-04-17 | 武汉钢铁(集团)公司 | High-temperature furnace roller for CSP (Compact Strip Production) heating furnace |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1566160A (en) * | 1924-02-14 | 1925-12-15 | Julian E Montgomery | Conveyer for annealing furnaces |
| FR838114A (en) * | 1938-05-18 | 1939-02-28 | Arbed | Conveyor roller for high temperature products |
| DE748157C (en) * | 1936-10-01 | 1944-10-27 | Air-cooled conveyor roller for conveyor ovens | |
| DE2115399A1 (en) * | 1970-06-26 | 1972-03-09 | Koho Es Gepipari Miniszterium | Heated rolls - for roller conveyor heat treatment furnaces |
| EP0635691A1 (en) * | 1993-07-23 | 1995-01-25 | ITALIMPIANTI S.p.A. | Roller for furnaces, particularly for iron and steel making furnaces for heating slabs or the like |
| DE19736058A1 (en) * | 1997-08-20 | 1999-02-25 | Loecher Ind Und Apparatebau Gm | Cooled roller for strip furnace |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3802495A (en) * | 1972-09-18 | 1974-04-09 | Combustion Eng | Internally fluid cooled rotatable roll |
| DE3740619C1 (en) * | 1987-12-01 | 1988-12-22 | Didier Eng | Heating furnace for a roughed-strip casting installation |
| DE19541615C1 (en) * | 1995-11-08 | 1997-07-10 | Thyssen Stahl Ag | Rotary union for the cooling water supply and discharge of a guide roller in a continuous caster |
-
2000
- 2000-05-18 DE DE10024556A patent/DE10024556C2/en not_active Expired - Fee Related
-
2001
- 2001-05-15 EP EP01955281A patent/EP1285209A1/en not_active Withdrawn
- 2001-05-15 WO PCT/EP2001/005516 patent/WO2001088452A1/en not_active Ceased
- 2001-05-15 CN CN01809702A patent/CN1429330A/en active Pending
- 2001-05-15 CA CA002409024A patent/CA2409024A1/en not_active Abandoned
- 2001-05-15 KR KR1020027015415A patent/KR20030028740A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1566160A (en) * | 1924-02-14 | 1925-12-15 | Julian E Montgomery | Conveyer for annealing furnaces |
| DE748157C (en) * | 1936-10-01 | 1944-10-27 | Air-cooled conveyor roller for conveyor ovens | |
| FR838114A (en) * | 1938-05-18 | 1939-02-28 | Arbed | Conveyor roller for high temperature products |
| DE2115399A1 (en) * | 1970-06-26 | 1972-03-09 | Koho Es Gepipari Miniszterium | Heated rolls - for roller conveyor heat treatment furnaces |
| EP0635691A1 (en) * | 1993-07-23 | 1995-01-25 | ITALIMPIANTI S.p.A. | Roller for furnaces, particularly for iron and steel making furnaces for heating slabs or the like |
| DE19736058A1 (en) * | 1997-08-20 | 1999-02-25 | Loecher Ind Und Apparatebau Gm | Cooled roller for strip furnace |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2396578A (en) * | 2002-04-16 | 2004-06-30 | Michael Charles Richa Bartlett | Rotational union coupling for a continuous casting roller |
| US7874192B2 (en) | 2002-04-16 | 2011-01-25 | Bartlett Engineering (South Wales) Limited | Arrangement for cooling a roll |
| CN101891265A (en) * | 2010-07-19 | 2010-11-24 | 丁树涛 | Anti-blocking water distribution head for sewage treatment system |
| EP3048072A4 (en) * | 2013-10-22 | 2017-06-14 | Zuiko Corporation | Composite sheet manufacturing device and composite sheet manufacturing method |
| US10610417B2 (en) | 2013-10-22 | 2020-04-07 | Zuiko Corporation | Composite sheet manufacturing device and composite sheet manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10024556C2 (en) | 2003-01-09 |
| EP1285209A1 (en) | 2003-02-26 |
| DE10024556A1 (en) | 2001-11-29 |
| KR20030028740A (en) | 2003-04-10 |
| CA2409024A1 (en) | 2002-11-15 |
| CN1429330A (en) | 2003-07-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2001088452A1 (en) | Water cooled transport roller for a roller-hearth kiln | |
| EP1615737A1 (en) | Strand-guiding roller | |
| DD244945A5 (en) | SNAKE STRESS PRESSURE WITH A CYLINDER TEMPERING DEVICE | |
| DE3716223C2 (en) | ||
| DE2710236C3 (en) | Screw pump | |
| EP1481785A1 (en) | Apparatus for processing flowable materials | |
| EP1613441B1 (en) | Device for coupling a coolant supply to a roller | |
| EP0548022A1 (en) | Device for mixing and/or kneading of materials | |
| DE2550366B2 (en) | Deflection compensation roller | |
| DE102019134040A1 (en) | Cleaning device | |
| EP1291152A1 (en) | Calibrating sleeve with intensive cooling | |
| WO2002007915A1 (en) | Continuous casting mould with copper plates surrounding the casting cross-section | |
| DE4018094C2 (en) | ||
| DE4410580B4 (en) | Ultrasonic testing machine for elongated test pieces with a rotor and a stator | |
| EP3528979B1 (en) | Riser tube arrangement for detecting molten metal level | |
| DE202021102413U1 (en) | Cross jet cleaning nozzle made by additive manufacturing | |
| EP0879378A1 (en) | Rotary transmission leadthrough | |
| DE3326589A1 (en) | DEVICE FOR CROWDING SYNTHETIC THREAD SHARDS | |
| DE69210167T2 (en) | Sealing ring for sliding parts, working at very low temperatures | |
| DE1481159A1 (en) | Transport, straightening or guide roller | |
| DE19823669C1 (en) | Rotary compensator lead-in unit for supply lines connected to rotating components | |
| EP0574683B1 (en) | A coupling for frictional attachment of a shaft with a machine member | |
| DE1962678C3 (en) | Arrangement for the compulsory Langs leadership of rotating drums | |
| DE8533682U1 (en) | Injection cooler | |
| DE2559917C2 (en) | Pressure relief valve for hydraulic pit rams, especially rock impact valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AK | Designated states |
Kind code of ref document: A1 Designated state(s): CA CN KR MX US ZA |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR |
|
| DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| WWE | Wipo information: entry into national phase |
Ref document number: 2001955281 Country of ref document: EP Ref document number: PA/A/2002/011226 Country of ref document: MX |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2409024 Country of ref document: CA Ref document number: 1020027015415 Country of ref document: KR |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 200209354 Country of ref document: ZA Ref document number: 018097022 Country of ref document: CN |
|
| WWP | Wipo information: published in national office |
Ref document number: 2001955281 Country of ref document: EP |
|
| WWP | Wipo information: published in national office |
Ref document number: 1020027015415 Country of ref document: KR |
|
| WWW | Wipo information: withdrawn in national office |
Ref document number: 2001955281 Country of ref document: EP |