WO2019057573A1 - OVEN ROLL, TRANSPORT DEVICE WITH SUCH OVEN ROLL AND METHOD FOR THE OPERATION - Google Patents
OVEN ROLL, TRANSPORT DEVICE WITH SUCH OVEN ROLL AND METHOD FOR THE OPERATION Download PDFInfo
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- WO2019057573A1 WO2019057573A1 PCT/EP2018/074552 EP2018074552W WO2019057573A1 WO 2019057573 A1 WO2019057573 A1 WO 2019057573A1 EP 2018074552 W EP2018074552 W EP 2018074552W WO 2019057573 A1 WO2019057573 A1 WO 2019057573A1
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- Prior art keywords
- furnace
- roller
- shaft
- ring
- transport device
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Classifications
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- 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
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
- F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path
- F27B9/24—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path being carried by a conveyor
- F27B9/2407—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path being carried by a conveyor the conveyor being constituted by rollers (roller hearth furnace)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G39/00—Rollers, e.g. drive rollers, or arrangements thereof incorporated in roller-ways or other types of mechanical conveyors
- B65G39/02—Adaptations of individual rollers and supports therefor
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- 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
- F27D2003/0034—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities
- F27D2003/0042—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities comprising roller trains
Definitions
- Furnace roll, transport device with such a furnace roll and method of operation thereof Technical Field
- sheet materials such as belts, sheets or sinkers, roller tracks of adjacent round rollers or more round, on a roller shaft side by side arranged support rings. These define a pass line for the material to be tempered, which runs along a plane defined by the tops of the rolls. At least a portion of the rollers is driven to convey the product along the roller conveyor.
- US Pat. No. 9,222,730 B2 discloses bearing surfaces helically arranged around the roller shaft and with a continuous cooling channel in order to improve the service life due to the temperature load and to reduce rolling.
- the invention is therefore based on the object to provide a furnace roller or a transport device, with which a gentle transport of the material to be tempered is made possible and Einwalzept be avoided.
- Other objects of the invention are a cost-effective design and a good retrofitting of existing facilities and flexible uses.
- a furnace roller having a roller shaft and a plurality of support rings which are distributed over the length of the roller shaft, characterized in that at least one support ring comprises a shaft ring whose circumferential surface meanders about a plane perpendicular to the roller shaft and concentric around the roller shaft is formed, and that the shaft ring is connected via at least one support member with the roller shaft.
- Embodiments of the furnace roller are characterized in that the circumferential surface of the wave ring meanders with uniform amplitude and phase around the plane. With the amplitude of each of the maximum distance of the peripheral surface of the plane perpendicular to the roller shaft level in both directions, along the roller shaft or width of Guts, designated and the phase is the distance in the circumferential direction between two amplitudes of the same direction. By a uniform design accordingly more uniform, harmonious movement conditions and thus a uniform bottom of the material can be achieved.
- Preferred embodiments of the furnace roller are characterized in that the peripheral surface is sinusoidal or rectilinear between the amplitudes.
- the peripheral surface is sinusoidal or rectilinear between the amplitudes.
- FIG. 1 Further embodiments of oven rolls according to the invention are characterized in that the peripheral surface has a rounded outer surface.
- rounded outer surfaces becomes reduces the contact surface between the shaft ring or support ring and the bottom of the Guts against a flat peripheral surface, resulting in a reduction of the heat loss at the Good result, so the amount of heat is released from the good to the support ring.
- Oven rolls according to the invention are characterized in further embodiments in that the support element is formed by a plurality of circumferentially distributed struts or as a flat plate member to produce a connection between the roller shaft and shaft ring.
- furnace rollers according to the invention are characterized in that the shaft ring and the support element are integrally formed as a wave washer.
- Embodiments of further inventive furnace rollers are characterized in that the support ring is formed of a plurality of interconnected shaft rings.
- the connection can either be such that the peripheral surfaces touch each other or are interconnected, preferably here peripheral surfaces having non-planar outer surfaces, so that the contact surface is kept low with the underside of the estate and the lateral force acts at several points to tinder, Remove particles and other buildup.
- the connection can also be made such that the connection takes place via the support elements and the peripheral surfaces of the individual shaft rings are spaced apart, whereby any dissolved scale and adhesions can be removed more easily and reliably, which further reduces the risk of Einwalzonne.
- Transport devices according to the invention for a furnace with furnace rollers are characterized in that at least one furnace roller is formed according to one of the above embodiments. Further embodiments of a transport device according to the invention are characterized in that, apart from the at least one furnace roller nor standard oven rolls are provided. By a corresponding same diameter of the support rings furnace rolls according to the invention can be used in parallel to standard oven rolls, which reduces the conversion effort.
- Transport devices in further embodiments according to the invention are characterized in that a separate drive unit is provided for the at least one furnace roller so that it can be driven independently of the other rollers.
- a separate drive unit By a separate drive unit, it is possible that this furnace roller is rotated at a different speed from the other rollers used in the oven.
- the other roles can be selected here as standard roles or from roles according to the invention and combinations.
- the furnace rollers driven by means of the separate drive unit are preferably arranged in the front region of the furnace or of the transport device.
- An inventive method for operating a transport device according to the invention characterized in that at least one furnace roller according to the invention is driven by the separate drive unit with a deviating from the other roles speed. Due to the different speed occurs between the oven roll and the Good a relative speed. Such relative speeds lead to a significant increase in the transverse force which occurs, as a result of which existing scale and optionally further particles are removed on the underside of the product. Thus, effectively rolling is avoided by the subsequent roles regardless of their design.
- Another aspect of the invention is the use of a transport device according to the invention in a roller hearth furnace or tunnel kiln. Also, the use in other furnaces in a continuous process is possible.
- a use according to the invention which is characterized in that the transport device is at least temporarily operated by a method according to the invention.
- Fig. 1 is a schematic representation of an embodiment of a furnace roller according to the invention.
- FIG. 2 is a schematic detail view of the furnace roller according to FIG. I.
- FIG. 2 is a schematic detail view of the furnace roller according to FIG. I.
- Fig. 1 shows a schematically illustrated furnace roller according to an embodiment of the invention.
- This comprises a roller shaft (1) on which a plurality of support rings (2) are arranged, with which the material to be conveyed comes into contact.
- five bearing rings (2) are distributed over the width of the furnace roller, of course, depending on the requirements and the spatial conditions of versions with more or fewer support rings (2) are possible.
- support rings (2) are used with different design and, for example, support rings according to the invention (2) are provided in combination with standard support rings.
- the support rings (2) are preferably arranged distributed uniformly, wherein the distance corresponding to the number of support rings (2) can be set arbitrarily.
- the support rings (2) have on their outer circumference on shaft rings (3) meander around a perpendicular to the roller shaft (1) standing plane. Shown are wave rings (3) which have a sinusoidal course along the circumference, wherein as explained above, other courses are possible.
- the wave rings (3) are firmly connected via support elements (4) with the roller shaft (1).
- the support element (4) thus forms, together with the at least one shaft ring (3), the support ring (2). Deviating from the illustrated support element (4) as a closed disc or ring variants with struts or spokes for the support element (4) are possible.
- the drive unit of the furnace roller is not shown.
- Fig. 2 shows an enlarged detail view of the support ring (2), seen in the conveying direction T, shown.
- the support ring (2) rings with three adjacent waves (3), which are mounted on the support element (4).
- the number of wave rings (3) per support ring (2) can be chosen arbitrarily depending on the requirements and conditions of the furnace. Shown is a variant in which the wave rings (3) of a support ring (2) touch. However, it is also possible to arrange these spaced apart on the support element (4), the distance can in this case between each individual or between individual groups of wave rings (3) are provided.
- the outer circumference of the wave rings (3) has a radius in the example shown, whereby the bearing surface of the material decreases, which reduces the thermal influence (cooling) by the support ring (2) and at the same time edges that can cause damage to the Guts, avoids.
- the wave rings (3) can in this case be manufactured separately and then preferably connected to the support element (4) in a materially bonded manner.
- the wave rings (3) can also be produced in one piece with the support element (4).
- the wave rings (3) can also be produced in one piece with the support element (4).
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Tunnel Furnaces (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
Die Erfindung betrifft eine Ofenrolle aufweisend einen Rollenschaft (1) und eine Mehrzahl von Tragringen (2), welche über die Länge des Rollenschafts (1) verteilt angeordnet sind, dadurch gekennzeichnet, dass zumindest ein Tragring (2) einen Wellenring (3) umfasst, dessen Umfangsfläche um eine senkrecht auf den Rollenschaft (1) stehenden Ebene mäandernd und konzentrisch um den Rollenschaft (1) ausgebildet ist, und dass der Wellenring (3) über zumindest ein Stützelement (4) mit dem Rollenschaft (1) verbunden ist. Des Weiteren betrifft die Erfindung Transportvorrichtungen mit derartigen Ofenrollen sowie Verfahren zu deren Betrieb.The invention relates to a furnace roller comprising a roller shaft (1) and a plurality of support rings (2) distributed over the length of the roller shaft (1), characterized in that at least one support ring (2) comprises a shaft ring (3), whose peripheral surface is meandering about a plane perpendicular to the roller shaft (1) and formed concentrically around the roller shaft (1), and that the shaft ring (3) is connected to the roller shaft (1) via at least one support element (4). Furthermore, the invention relates to transport devices with such furnace rollers and methods for their operation.
Description
Ofenrolle, Transportvorrichtung mit derartiger Ofenrolle und Verfahren zu deren Betrieb Technisches Gebiet (Technical Field) Furnace roll, transport device with such a furnace roll and method of operation thereof Technical Field
Auf dem Gebiet des Transports von flächigem, zu erwärmenden beziehungsweise zu temperierenden Material in Öfen, werden im industriellen Einsatz Transportvorrichtungen benötigt. In the field of transport of flat, to be heated or tempered material in ovens, transport devices are needed in industrial applications.
Technischer Hintergrund (Background Art) Technical Background (Background Art)
Aus dem Stand der Technik sind für flächige Materialien, wie Bänder, Bleche oder Platinen, Rollengänge aus benachbarten runden Rollen oder mehreren runden, auf einem Rollenschaft nebeneinander angeordneten Tragringen bekannt. Diese definieren eine Passlinie für das zu temperierende Gut, welche entlang einer Ebene verläuft, die durch die Oberseiten der Rollen festgelegt wird. Zumindest ein Teil der Rollen wird hierbei angetrieben, um das Gut entlang des Rollengangs zu fördern. From the state of the art are known for sheet materials, such as belts, sheets or sinkers, roller tracks of adjacent round rollers or more round, on a roller shaft side by side arranged support rings. These define a pass line for the material to be tempered, which runs along a plane defined by the tops of the rolls. At least a portion of the rollers is driven to convey the product along the roller conveyor.
Den aus dem Stand der Technik bekannten Rollenanordnungen ist gemein, dass es durch den Kontakt der Rollen oder Tragringen zu mechanischen Beschädigungen oder Einwalzungen an der Unterseite des geförderten Guts kommt. The known from the prior art roller assemblies is common that it comes through the contact of the rollers or support rings to mechanical damage or Einwalzungen on the underside of the conveyed Guts.
Aus US 9,222,730 B2 sind helixartig um den Rollenschaft angeordnete Auflageflächen und mit einem durchlaufendem Kühlkanal bekannt, um die Lebensdauer aufgrund der Temperaturbelastung zu verbessern und Einwalzungen zu verringern. US Pat. No. 9,222,730 B2 discloses bearing surfaces helically arranged around the roller shaft and with a continuous cooling channel in order to improve the service life due to the temperature load and to reduce rolling.
Zusammenfassung der Erfindung (Summary of Invention) Summary of Invention
Der Erfindung liegt somit die Aufgabe zu Grunde, eine Ofenrolle bzw. eine Transportvorrichtung anzugeben, mit welcher ein schonender Transport des zu temperierenden Guts ermöglicht wird und Einwalzungen vermieden werden. Weitere Aufgaben der Erfindung bestehen in einem kostengünstigen Aufbau sowie einer guten Nachrüstbarkeit bestehender Anlagen sowie flexiblen Einsatzmöglichkeiten. The invention is therefore based on the object to provide a furnace roller or a transport device, with which a gentle transport of the material to be tempered is made possible and Einwalzungen be avoided. Other objects of the invention are a cost-effective design and a good retrofitting of existing facilities and flexible uses.
Gelöst wird diese Aufgabe durch Ofenrollen gemäß Anspruch 1 beziehungsweise Transportvorrichtungen gemäß Anspruch 8 sowie durch Verfahren zu deren Betrieb gemäß Anspruch I I . Erfindungsgemäß ist eine Ofenrolle aufweisend einen Rollenschaft und eine Mehrzahl von Tragringen, welche über die Länge des Rollenschafts verteilt angeordnet sind, dadurch gekennzeichnet, dass zumindest ein Tragring einen Wellenring umfasst, deren Umfangsfläche um eine senkrecht auf den Rollenschaft stehenden Ebene mäandernd und konzentrisch um den Rollenschaft ausgebildet ist, und dass der Wellenring über zumindest ein Stützelement mit dem Rollenschaft verbunden ist. Durch die mäandernde Ausgestaltung werden Einwalzungen von an der Unterseite des Guts vorhandenen Zunders oder anderer Partikel verringert, da im Vergleich zu aus dem Stand der Technik bekannten Standardrollen mit Tragringen, die eine festen Breite und Position gegenüber dem Rollenschaft aufweisen, im Kontaktpunkt eine Querkraft auftritt und die Kontaktfläche einer Ofenrolle mit dem Gut in Breitenrichtung stetig ändert. Ein weiterer Vorteil liegt darin, dass auf Dehnungsfugen, welche bei Standardrollen zu Beschädigungen an der Unterseite des Guts führen können, weitestgehend verzichtet werden kann, da durch die mäandernde Umfangsfläche eventuell auftretende Änderungen der Umfangslänge beziehungsweise Tragringdurchmessers ausgleichen lassen. This object is achieved by furnace rollers according to claim 1 or transport devices according to claim 8 and by methods for their operation according to claim II. According to the invention, a furnace roller having a roller shaft and a plurality of support rings which are distributed over the length of the roller shaft, characterized in that at least one support ring comprises a shaft ring whose circumferential surface meanders about a plane perpendicular to the roller shaft and concentric around the roller shaft is formed, and that the shaft ring is connected via at least one support member with the roller shaft. Due to the meandering configuration Einwalzungen of existing on the underside of the Guts Zunders or other particles are reduced because compared to known from the prior art standard roles with support rings having a fixed width and position relative to the roller shaft, a transverse force occurs at the contact point and the contact surface of a furnace roll with the good in the width direction constantly changes. Another advantage is that can be largely dispensed with expansion joints, which can cause damage to the underside of the Guts in standard roles, as may compensate for any changes occurring in the circumferential length or support ring diameter by the meandering peripheral surface.
Ausführungsformen der Ofenrolle sind dadurch gekennzeichnet, dass die Umfangsfläche des Wellenrings mit gleichmäßiger Amplitude und Phase um die Ebene mäandert. Mit der Amplitude ist der jeweils maximale Abstand der Umfangsfläche von der senkrecht auf dem Rollenschaft stehenden Ebene in beide Richtungen, entlang des Rollenschaftes beziehungsweise Breite des Guts, bezeichnet und mit der Phase ist der Abstand in Umfangsrichtung zwischen zwei Amplituden der gleichen Richtung bezeichnet. Durch eine gleichmäßige Ausgestaltung werden entsprechend gleichmäßigere, harmonische Bewegungsbedingungen und somit eine einheitliche Unterseite des Guts erreicht. Embodiments of the furnace roller are characterized in that the circumferential surface of the wave ring meanders with uniform amplitude and phase around the plane. With the amplitude of each of the maximum distance of the peripheral surface of the plane perpendicular to the roller shaft level in both directions, along the roller shaft or width of Guts, designated and the phase is the distance in the circumferential direction between two amplitudes of the same direction. By a uniform design accordingly more uniform, harmonious movement conditions and thus a uniform bottom of the material can be achieved.
Bevorzugte Ausführungsformen der Ofenrolle sind dadurch gekennzeichnet, dass die Umfangsfläche sinusförmig oder zwischen den Amplituden geradlinig verläuft. Durch einen sinusförmigen Verlauf, bei dem sich die Ausrichtung der Umfangsfläche in Bezug auf die Förderrichtung stetig konstant ändert, werden entsprechend konstant ändernde Bewegungsbedingungen auch in den Amplituden, also Umkehrpunkten, erreicht. Durch zwischen den Amplituden geradlinigen Verlauf wird zwischen den Amplituden gleichbleibende Bewegungsbedingungen erreicht, welche eine konstante Querkraft erzeugen. Preferred embodiments of the furnace roller are characterized in that the peripheral surface is sinusoidal or rectilinear between the amplitudes. By means of a sinusoidal profile, in which the orientation of the peripheral surface changes constantly constantly with respect to the conveying direction, correspondingly constantly changing conditions of movement are also achieved in the amplitudes, that is, reversal points. By between the amplitudes rectilinear course constant movement conditions is achieved between the amplitudes, which generate a constant lateral force.
Weitere Ausführungsformen erfindungsgemäßer Ofenrollen sind dadurch gekennzeichnet, dass die Umfangsfläche eine gerundete Außenfläche aufweist. Durch gerundete Außenflächen wird die Kontaktfläche zwischen Wellenring beziehungsweise Tragring und Unterseite des Guts gegenüber einer flachen Umfangsfläche verringert, was eine Reduzierung des Wärmeverlusts am Gut zur Folge hat, also der Wärmemenge die von dem Gut an den Tragring abgegeben wird. Further embodiments of oven rolls according to the invention are characterized in that the peripheral surface has a rounded outer surface. By rounded outer surfaces becomes reduces the contact surface between the shaft ring or support ring and the bottom of the Guts against a flat peripheral surface, resulting in a reduction of the heat loss at the Good result, so the amount of heat is released from the good to the support ring.
Erfindungsgemäße Ofenrollen sind in weiteren Ausführungsformen dadurch gekennzeichnet, dass das Stützelement durch mehrere über den Umfang verteilte Streben oder als flächiges Plattenelement ausgebildet ist, um eine Verbindung zwischen Rollenschaft und Wellenring herzustellen. Oven rolls according to the invention are characterized in further embodiments in that the support element is formed by a plurality of circumferentially distributed struts or as a flat plate member to produce a connection between the roller shaft and shaft ring.
Weitere erfindungsgemäße Ofenrollen sind dadurch gekennzeichnet, dass der Wellenring und das Stützelement einteilig als Wellenscheibe ausbildet sind. Durch eine einteilige Ausführung wird die Teilezahl und somit der Montageaufwand reduziert und gleichzeitig kann abhängig vom Fertigungsverfahren der Fertigungsaufwand verringert werden. Further furnace rollers according to the invention are characterized in that the shaft ring and the support element are integrally formed as a wave washer. By a one-piece design, the number of parts and thus the assembly cost is reduced and at the same time can be reduced depending on the manufacturing process of manufacturing costs.
Ausführungsformen weiterer erfindungsgemäßer Ofenrollen sind dadurch gekennzeichnet, dass der Tragring aus mehreren miteinander verbundenen Wellenringen gebildet ist. Durch die Zusammenfassung mehrerer Wellenringe zu einem Tragring wird eine Nach- oder Umrüstung bestehenden Anlagen vereinfacht. Da bei entsprechender Gestaltung der Anschlussflächen und gegebenenfalls Stützelemente einfach vorhandene Tragringe von Standardofenrollen durch erfindungsgemäße Tragringe ersetzt werden können. Die Verbindung kann hierbei entweder derart erfolgen, dass die Umfangsflächen sich berühren beziehungsweise miteinander verbunden sind, wobei hier bevorzugt Umfangsflächen mit nicht ebenen Außenflächen aufweisen, damit die Kontaktfläche mit der Unterseite des Guts gering gehalten wird und die Querkraft an mehreren Stellen wirkt, um Zunder, Partikel und andere Anhaftungen zu entfernen. Die Verbindung kann aber auch derart erfolgen, dass die Verbindung über die Stützelemente erfolgt und die Umfangsflächen der einzelnen Wellenringe zueinander beabstandet sind, wodurch gegebenenfalls gelöster Zunder und Anhaftungen leichter und zuverlässiger abgeführt werden können, was die Gefahr von Einwalzungen weiter verringert. Embodiments of further inventive furnace rollers are characterized in that the support ring is formed of a plurality of interconnected shaft rings. By combining several wave rings into a support ring, retrofitting or upgrading existing systems is simplified. Since with appropriate design of the pads and possibly supporting elements easily existing support rings of standard oven rolls can be replaced by support rings according to the invention. The connection can either be such that the peripheral surfaces touch each other or are interconnected, preferably here peripheral surfaces having non-planar outer surfaces, so that the contact surface is kept low with the underside of the estate and the lateral force acts at several points to tinder, Remove particles and other buildup. But the connection can also be made such that the connection takes place via the support elements and the peripheral surfaces of the individual shaft rings are spaced apart, whereby any dissolved scale and adhesions can be removed more easily and reliably, which further reduces the risk of Einwalzungen.
Erfindungsgemäße Transportvorrichtungen für einen Ofen mit Ofenrollen sind dadurch gekennzeichnet, dass zumindest eine Ofenrolle gemäß einer der obigen Ausführungsformen ausgebildet ist. Weiteren Ausführungsformen einer erfindungsgemäßen Transportvorrichtung sind dadurch gekennzeichnet, dass abgesehen von der zumindest einen Ofenrolle noch Standardofenrollen vorgesehen sind. Durch einen entsprechenden gleichen Durchmesser der Tragringe können erfindungsgemäße Ofenrollen parallel zu Standardofenrollen eingesetzt werden, was den Umrüstungsaufwand reduziert. Transport devices according to the invention for a furnace with furnace rollers are characterized in that at least one furnace roller is formed according to one of the above embodiments. Further embodiments of a transport device according to the invention are characterized in that, apart from the at least one furnace roller nor standard oven rolls are provided. By a corresponding same diameter of the support rings furnace rolls according to the invention can be used in parallel to standard oven rolls, which reduces the conversion effort.
Transportvorrichtungen in weiteren erfindungsgemäßen Ausführungsformen sind dadurch gekennzeichnet, dass für die zumindest eine Ofenrolle eine separate Antriebseinheit vorgesehen ist, damit diese unabhängig von den weiteren Rollen antreibbar ist. Durch eine separate Antriebseinheit ist es möglich, dass diese Ofenrolle mit einer von den weiteren im Ofen verwendeten Rollen unterschiedlichen Geschwindigkeit gedreht wird. Die weiteren Rollen können hierbei als Standardrollen oder auch aus erfindungsgemäßen Rollen sowie Kombinationen ausgewählt sein. Die mittels der separaten Antriebseinheit angetriebenen Ofenrollen sind vorzugsweise im vorderen Bereich des Ofens beziehungsweise der Transportvorrichtung angeordnet. Transport devices in further embodiments according to the invention are characterized in that a separate drive unit is provided for the at least one furnace roller so that it can be driven independently of the other rollers. By a separate drive unit, it is possible that this furnace roller is rotated at a different speed from the other rollers used in the oven. The other roles can be selected here as standard roles or from roles according to the invention and combinations. The furnace rollers driven by means of the separate drive unit are preferably arranged in the front region of the furnace or of the transport device.
Ein erfindungsgemäßes Verfahren zum Betreiben einer erfindungsgemäßen Transportvorrichtung, dadurch gekennzeichnet, dass zumindest eine erfindungsgemäße Ofenrolle durch die separate Antriebseinheit mit einer von den weiteren Rollen abweichenden Geschwindigkeit angetrieben wird. Aufgrund der unterschiedlichen Geschwindigkeit tritt zwischen der Ofenrolle und dem Gut eine Relativgeschwindigkeit auf. Derartige Relativgeschwindigkeiten führen zu einer deutlichen Erhöhung der auftretenden Querkraft, wodurch auf der Unterseite des Guts vorhandener Zunder und gegebenenfalls weitere Partikel entfernt werden. Somit werden effektiv Einwalzungen durch die nachfolgenden Rollen unabhängig von deren Bauart vermieden. An inventive method for operating a transport device according to the invention, characterized in that at least one furnace roller according to the invention is driven by the separate drive unit with a deviating from the other roles speed. Due to the different speed occurs between the oven roll and the Good a relative speed. Such relative speeds lead to a significant increase in the transverse force which occurs, as a result of which existing scale and optionally further particles are removed on the underside of the product. Thus, effectively rolling is avoided by the subsequent roles regardless of their design.
Weitere Ausführungsformen eines erfindungsgemäßen Verfahrens sind dadurch gekennzeichnet, dass die zumindest eine Ofenrolle gegenläufig zu den weiteren Rollen angetrieben wird. Hierdurch wird die Relativgeschwindigkeit und somit auf die auftretenden Querkräfte deutlich erhöht. Further embodiments of a method according to the invention are characterized in that the at least one furnace roller is driven in opposite directions to the other rollers. As a result, the relative speed and thus on the transverse forces occurring is significantly increased.
Ein weiterer Aspekt der Erfindung ist die Verwendung einer erfindungsgemäßen Transportvorrichtung in einem Rollenherdofen oder Tunnelofen. Auch die Verwendung in anderen Öfen im Durchlaufverfahren ist möglich. Insbesondere ist auch eine Verwendung erfindungsgemäß, die dadurch gekennzeichnet ist, dass die Transportvorrichtung zumindest zeitweise nach einem erfindungsgemäßen Verfahren betrieben wird. Another aspect of the invention is the use of a transport device according to the invention in a roller hearth furnace or tunnel kiln. Also, the use in other furnaces in a continuous process is possible. In particular, a use according to the invention, which is characterized in that the transport device is at least temporarily operated by a method according to the invention.
Kurze Beschreibung der Zeichnungen (Brief Description of Drawings) Short description of the drawings (Brief Description of Drawings)
Im Folgenden wird die Erfindung anhand von schematischen Zeichnungen näher erläutert, wobei gleichartige Teile mit gleichen Bezugszeichen versehen sind. Im Einzelnen zeigen: In the following the invention will be explained in more detail with reference to schematic drawings, wherein like parts are provided with the same reference numerals. In detail show:
Fig. 1 eine schematische Darstellung einer erfindungsgemäßen Ausführungsform einer Ofenrolle und Fig. 1 is a schematic representation of an embodiment of a furnace roller according to the invention and
Fig. 2 eine schematische Detailansicht der Ofenrolle gemäß Fig. I. FIG. 2 is a schematic detail view of the furnace roller according to FIG. I. FIG.
Beschreibung der bevorzugten Ausführungsformen (Best Mode for Carrying out the Invention) Description of the Preferred Embodiments (Best Mode for Carrying Out the Invention)
Fig. 1 zeigt eine schematische dargestellte Ofenrolle gemäß einer erfindungsgemäßen Ausführungsform. Diese umfasst einen Rollenschaft (1) auf dem mehrere Tragringe (2) angeordnet sind, mit denen das zu fördernde Gut in Kontakt kommt. Im gezeigten Beispiel sind über die Breite der Ofenrolle fünf Tragringe (2) verteilt, wobei abhängig von den Erfordernissen und den räumlichen Gegebenheiten natürlich aus Ausführungen mit mehr oder weniger Tragringen (2) möglich sind. Auch sind Ausführungen denkbar, bei denen Tragringe (2) mit unterschiedlicher Bauart verwendet werden und beispielsweise erfindungsgemäße Tragringe (2) in Kombination mit Standard-Tragringen vorgesehen werden. Die Tragringe (2) sind vorzugsweise gleichmäßig verteilt angeordnet, wobei der Abstand entsprechend der Anzahl an Tragringen (2) beliebig eingestellt werden kann. Die Tragringe (2) weisen an Ihrem äußeren Umfang Wellenringe (3) auf, die um eine senkrecht auf dem Rollenschaft (1) stehende Ebene mäandern. Dargestellt sind Wellenringe (3), welche einen sinusförmigen Verlauf entlang des Umfangs aufweisen, wobei wie oben erläutert auch andere Verläufe möglich sind. Die Wellenringe (3) sind über Stützelemente (4) mit dem Rollenschaft (1) fest verbunden. Das Stützelement (4) bildet somit zusammen mit dem zumindest einen Wellenring (3) den Tragring (2) aus. Abweichend vom dargestellten Stützelement (4) als geschlossenes Scheiben beziehungsweise Ring sind auch Varianten mit Streben oder Speichen für das Stützelement (4) möglich. Die Antriebseinheit der Ofenrolle ist nicht dargestellt. In Fig. 2 ist eine vergrößert dargestellte Detailansicht des Tragrings (2), in Förderrichtung T gesehen, gezeigt. Im gezeigten Ausführungsbeispiel ist der Tragring (2) mit drei nebeneinanderliegenden Wellen ringen (3) versehen, die auf dem Stützelement (4) angebracht sind. Die Anzahl der Wellenringe (3) pro Tragring (2) kann beliebig in Abhängigkeit der Anforderungen und Gegebenheiten am Ofen gewählt werden. Dargestellt ist eine Variante, bei der sich die Wellenringe (3) eines Tragrings (2) berühren. Es ist allerdings auch möglich, diese beabstandet zueinander auf dem Stützelement (4) anzuordnen, der Abstand kann hierbei zwischen jedem einzelnen oder auch zwischen einzelnen Gruppen von Wellenringen (3) vorgesehen werden. Fig. 1 shows a schematically illustrated furnace roller according to an embodiment of the invention. This comprises a roller shaft (1) on which a plurality of support rings (2) are arranged, with which the material to be conveyed comes into contact. In the example shown, five bearing rings (2) are distributed over the width of the furnace roller, of course, depending on the requirements and the spatial conditions of versions with more or fewer support rings (2) are possible. Also embodiments are conceivable in which support rings (2) are used with different design and, for example, support rings according to the invention (2) are provided in combination with standard support rings. The support rings (2) are preferably arranged distributed uniformly, wherein the distance corresponding to the number of support rings (2) can be set arbitrarily. The support rings (2) have on their outer circumference on shaft rings (3) meander around a perpendicular to the roller shaft (1) standing plane. Shown are wave rings (3) which have a sinusoidal course along the circumference, wherein as explained above, other courses are possible. The wave rings (3) are firmly connected via support elements (4) with the roller shaft (1). The support element (4) thus forms, together with the at least one shaft ring (3), the support ring (2). Deviating from the illustrated support element (4) as a closed disc or ring variants with struts or spokes for the support element (4) are possible. The drive unit of the furnace roller is not shown. In Fig. 2 shows an enlarged detail view of the support ring (2), seen in the conveying direction T, shown. In the illustrated embodiment, the support ring (2) rings with three adjacent waves (3), which are mounted on the support element (4). The number of wave rings (3) per support ring (2) can be chosen arbitrarily depending on the requirements and conditions of the furnace. Shown is a variant in which the wave rings (3) of a support ring (2) touch. However, it is also possible to arrange these spaced apart on the support element (4), the distance can in this case between each individual or between individual groups of wave rings (3) are provided.
Der äußere Umfang der Wellenringe (3) weist im dargestellten Beispiel einen Radius auf, wodurch sich die Auflagefläche des Guts verkleinert, was die thermische Beeinflussung (Abkühlung) durch den Tragring (2) verringert und gleichzeitig Kanten, die eine Beschädigung des Guts erzeugen können, vermeidet. The outer circumference of the wave rings (3) has a radius in the example shown, whereby the bearing surface of the material decreases, which reduces the thermal influence (cooling) by the support ring (2) and at the same time edges that can cause damage to the Guts, avoids.
Die Wellenringe (3) können hierbei separat hergestellt und anschließend vorzugsweise stoffschlüssig mit dem Stützelement (4) verbunden werden. The wave rings (3) can in this case be manufactured separately and then preferably connected to the support element (4) in a materially bonded manner.
Alternativ können die Wellenringe (3) auch einstückig mit dem Stützelement (4) hergestellt werden. Insbesondere bei Ausführungsformen, die nur einen Wellenring (3) pro Tragring (2) aufweisen, bietet sich eine einstückige Ausführung von Wellenring (3) und Stützelement (4) an, da durch Umformen von flachem Ausgangsmaterial im Stützelement (4) ein kontinuierlicher, fließender Übergang vom flachen, in einer Ebene senkrecht zum Rollenschaft (1) liegenden, Nabenbereich zum mäandernden Randbereich, der den Wellenring (3) trägt oder ausbildet, erreicht werden kann. Alternatively, the wave rings (3) can also be produced in one piece with the support element (4). In particular, in embodiments having only one shaft ring (3) per support ring (2), offers a one-piece design of shaft ring (3) and support element (4), since by forming flat starting material in the support element (4) has a continuous, flowing Transition from the flat, in a plane perpendicular to the roller shaft (1) lying hub region to the meandering edge region, which carries or forms the wave ring (3), can be achieved.
Die verschiedenen Merkmale der Erfindung sind beliebig miteinander kombinierbar und nicht nur auf die beschriebenen oder dargestellten Beispiele von Ausführungsformen beschränkt. Bezugszeichenliste The various features of the invention can be combined with one another as desired and are not limited to the described or illustrated examples of embodiments. LIST OF REFERENCE NUMBERS
1 Rollenschaft1 roller shaft
2 Tragring2 support ring
3 Wellenring3 wave ring
4 Stützelement 4 support element
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017216590.1 | 2017-09-19 | ||
| DE102017216590.1A DE102017216590A1 (en) | 2017-09-19 | 2017-09-19 | Furnace roll, transport device with such furnace roller and method for their operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2019057573A1 true WO2019057573A1 (en) | 2019-03-28 |
Family
ID=63557485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2018/074552 Ceased WO2019057573A1 (en) | 2017-09-19 | 2018-09-12 | OVEN ROLL, TRANSPORT DEVICE WITH SUCH OVEN ROLL AND METHOD FOR THE OPERATION |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE102017216590A1 (en) |
| WO (1) | WO2019057573A1 (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1187865A (en) * | 1966-10-10 | 1970-04-15 | Schloemann Ag | Improvements in or relating to the Guiding and Driving Rollers of Continuous Casting Plant. |
| US4047274A (en) * | 1975-08-18 | 1977-09-13 | Escher Wyss Limited | Support for continuously cast hot metal components |
| EP0198961A1 (en) * | 1985-04-18 | 1986-10-29 | Buchtal Gesellschaft mit beschränkter Haftung | Roller hearth furnace for burning a flat or plate-shaped ceramic article |
| JPS62230462A (en) * | 1986-04-01 | 1987-10-09 | Nippon Steel Corp | Roll for continuous casting |
| US4733446A (en) * | 1982-06-24 | 1988-03-29 | Kuroki Kogyosho Co., Ltd. | Roll |
| WO1999024186A1 (en) * | 1997-11-11 | 1999-05-20 | Danieli & C. Officine Meccaniche S.P.A. | Method to control the axial position of slabs emerging from continuous casting and relative device |
| US9222730B2 (en) | 2009-03-17 | 2015-12-29 | Andritz Bricmont Inc. | Method for forming and using a furnace roller assembly |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5553700A (en) * | 1995-04-10 | 1996-09-10 | Atotech Usa, Inc. | Treatment method and apparatus for printed circuit boards and the like |
-
2017
- 2017-09-19 DE DE102017216590.1A patent/DE102017216590A1/en not_active Ceased
-
2018
- 2018-09-12 WO PCT/EP2018/074552 patent/WO2019057573A1/en not_active Ceased
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1187865A (en) * | 1966-10-10 | 1970-04-15 | Schloemann Ag | Improvements in or relating to the Guiding and Driving Rollers of Continuous Casting Plant. |
| US4047274A (en) * | 1975-08-18 | 1977-09-13 | Escher Wyss Limited | Support for continuously cast hot metal components |
| US4733446A (en) * | 1982-06-24 | 1988-03-29 | Kuroki Kogyosho Co., Ltd. | Roll |
| EP0198961A1 (en) * | 1985-04-18 | 1986-10-29 | Buchtal Gesellschaft mit beschränkter Haftung | Roller hearth furnace for burning a flat or plate-shaped ceramic article |
| JPS62230462A (en) * | 1986-04-01 | 1987-10-09 | Nippon Steel Corp | Roll for continuous casting |
| WO1999024186A1 (en) * | 1997-11-11 | 1999-05-20 | Danieli & C. Officine Meccaniche S.P.A. | Method to control the axial position of slabs emerging from continuous casting and relative device |
| US9222730B2 (en) | 2009-03-17 | 2015-12-29 | Andritz Bricmont Inc. | Method for forming and using a furnace roller assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102017216590A1 (en) | 2019-03-21 |
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