EP0162381A1 - Heating or cooling roller - Google Patents

Heating or cooling roller Download PDF

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Publication number
EP0162381A1
EP0162381A1 EP85105742A EP85105742A EP0162381A1 EP 0162381 A1 EP0162381 A1 EP 0162381A1 EP 85105742 A EP85105742 A EP 85105742A EP 85105742 A EP85105742 A EP 85105742A EP 0162381 A1 EP0162381 A1 EP 0162381A1
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EP
European Patent Office
Prior art keywords
roll
jacket
guide
cooling
wheel
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.)
Granted
Application number
EP85105742A
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German (de)
French (fr)
Other versions
EP0162381B1 (en
Inventor
Erich Pagendarm
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ECH Will GmbH and Co
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ECH Will GmbH and Co
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Filing date
Publication date
Application filed by ECH Will GmbH and Co filed Critical ECH Will GmbH and Co
Publication of EP0162381A1 publication Critical patent/EP0162381A1/en
Application granted granted Critical
Publication of EP0162381B1 publication Critical patent/EP0162381B1/en
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F5/00—Dryer section of machines for making continuous webs of paper
    • D21F5/02—Drying on cylinders
    • D21F5/022—Heating the cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/10—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials
    • F26B13/14—Rollers, drums, cylinders; Arrangement of drives, supports, bearings, cleaning
    • F26B13/18—Rollers, drums, cylinders; Arrangement of drives, supports, bearings, cleaning heated or cooled, e.g. from inside, the material being dried on the outside surface by conduction
    • F26B13/183—Arrangements for heating, cooling, condensate removal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D11/00—Heat-exchange apparatus employing moving conduits
    • F28D11/02—Heat-exchange apparatus employing moving conduits the movement being rotary, e.g. performed by a drum or roller

Definitions

  • the invention relates to a cooling or heating roller, the roller bearings contain channels for supplying and discharging a liquid heat transfer medium to or from the inside of the roll, which has a device for circulating the heat transfer medium essentially completely filling the inside of the roll and a guide jacket for guiding the circulates medium along the roll shell.
  • the guide jacket is arranged in a fixed manner and protrudes from it a likewise fixed, axially directed partition to the roller jacket.
  • a conveyor wheel rotating with the roller jacket is provided, which together with the dividing wall forms the circulating device.
  • This arrangement has the advantage that the relative speed of the heat transfer medium, which is responsible for the temperature distribution in the roll shell, in relation to the roll shell can be set independently of the supply and discharge of the heat transfer medium to and from the inside of the roll solely by appropriate dimensioning of the circulating devices.
  • the channels in the roller bearings can be made correspondingly small.
  • the invention is therefore based on the object of providing a device of the type mentioned at the outset, which is less complex, in particular with regard to the setting of different circulation speeds.
  • the solution according to the invention consists in that the device for circulating the heat transfer medium is formed by a pump wheel which is fixedly arranged in the interior of the roller.
  • the pump wheel is preferably arranged as an axial wheel within the guide jacket.
  • a guiding device can be provided which is particularly simple with one located inside the guiding jacket
  • Axial wheel can be designed as a guide grid connected to the guide jacket. - It may be expedient to design the circulating device independently of the direction of rotation, so that its effect is retained even when the direction of rotation of the roll is reversed, or so that the same circulating devices can be used for rolls with different operating directions.
  • a pump wheel fixedly arranged inside the roller is considerably less complex than a circulation pump equipped with a special drive, in particular also taking into account the necessary size of the flow cross-sections in the medium bushings in the roller bearings.
  • a further gradation of the circulation speed can be achieved by the optional assignment of guide devices.
  • the design of the circulators which is independent of the direction of rotation, is carried out according to the principles familiar in fluid technology. For example, in the case of a radial wheel, the direction of rotation of the delivery rate is achieved by using radially extending blades.
  • the cooling or heating roller is formed by a roller shell 1, end walls 2, 3 and generally at 4 or 5 indicated bearings, which allow the roller to be driven or to rotate with a guided web.
  • the roller encloses the hollow roller interior 6, which is supplied and discharged in a known manner via the bearings 4 and 5 in such a way that it is essentially completely filled by the liquid medium.
  • the supply and discharge quantity of the medium is measured exclusively according to the amount of heat to be exchanged, regardless of the speed required on the roller jacket to achieve the required heat transfer.
  • a guide jacket 7 is fastened in a suitable manner within the roll interior 6 such that it rotates with the roll. It includes a cylinder gap 8 with the roll shell, in which the heat transfer medium is brought to the speed required for heat transfer in the axial direction by internal circulation. It must be assumed that the heat transfer medium has a circumferential speed which is not significantly lower than that of the roll shell and the guide cylinder due to the frictional conditions and any guide means present.
  • a pump wheel 9 Arranged inside the guide cylinder is a pump wheel 9 designed as an axial wheel, which is seated on a fixed shaft 10 which is guided through the bearing 4 to the outside and is held there coaxially with the bearing and the roller.
  • a grid 11 can be connected upstream or downstream of the pump wheel 9 on one side or the other as a guide apparatus.
  • the pump wheel 9 caused circulation in the interior of the roller, the direction of which is indicated by a solid or dashed arrow.
  • the impeller and the diffuser can be so easily will measure that the axial flow velocities at the roll shell reaches 0.5 to 5 times the roll circumferential speed. Since no drive is required for the fixed pump wheel and both this and the guide device 11 which may be provided can be made very simple, this result is achieved with very little effort, it being no problem to produce pump wheels and guide grids in different sizes for different roller dimensions and to keep flow velocities in stock or to make them at short notice from case to case.
  • Dash-dot lines indicate a radial wheel 12 that can take the place of the axial wheel 9 and, when equipped with radially extending blades, independently of the direction of rotation at the same speed in the direction of the arrow.
  • the guide jacket 7 can be made very thin because the pressure differences in the internal circuit are small.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Textile Engineering (AREA)
  • Paper (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

1. Cooling or heating roll with a roll jacket (1) and a guide jacket (7) fixed in the roll interior and rotatable with the roll jacket, with channels in the roll bearings (4, 5) for feed and discharge of a fluid heat exchange medium to or from the interior of the roll, with a cylindrical gap (8) arranged between the guiding and the roll jackets for guiding the circulatory stream along the roll jacket and with a pump wheel (9, 12) for circulating the heat exchange medium substantially completely filling the interior of the roll, characterised in that the pump wheel (9, 12) is stationarily arranged.

Description

Die Erfindung bezieht sich auf eine Kühl- oder Heizwalze, deren Walzenlager Kanäle zur Zu- und Abführung eines flüssigen Wärmeträgermediums zum bzw. vom Walzeninneren enthalten, der eine Einrichtung zum Umwälzen des das Walzeninnere im wesentlichen vollständig füllenden Wärmeträgermediums im Walzeninneren sowie einen Führungsmantel zum Führen des umgewälzten Mediums entlang dem Walzenmantel einschließt.The invention relates to a cooling or heating roller, the roller bearings contain channels for supplying and discharging a liquid heat transfer medium to or from the inside of the roll, which has a device for circulating the heat transfer medium essentially completely filling the inside of the roll and a guide jacket for guiding the circulates medium along the roll shell.

Bei einer bekannten Vorrichtung dieser Art (DE-PS 26 50 858) ist der Führungsmantel feststehend angeordnet und ragt von ihm eine ebenfalls feststehende, axial gerichtete Trennwand zum Walzenmantel vor. Am Ende der axialen Erstreckung der Führungswand und der Trennwand ist ein mit dem Walzenmantel umlaufendes Förderrad vorgesehen, das gemeinsam mit der Trennwand die Umwälzeinrichtung bildet. Diese Anordnung hat den Vorteil, daß die für die Temperaturverteilung im Walzenmantel verantwortliche Relativgeschwindigkeit des Wärmeträgermediums gegenüber dem Walzenmantel unabhängig von der Zu- und Abführung des Wärmeträgermediums zum bzw. vom Walzeninneren allein durch entsprechende Bemessung der Umwälzeinrichtungen eingestellt werden kann. Die Kanäle in den Walzenlagern können entsprechend klein ausgebildet werden. Jedoch hat diese Anordnung den Nachteil, daß sie vergleichsweise aufwendig ist, insbesondere wenn unterschiedliche Strömungsgeschwindigkeiten innerhalb des Wal-zenhohlraums vorherbestimmbar sein sollen. - Ferner ist eine Kühl- oder Heizwalze bekannt (US-A 34 01 745), in der ein von außen mittels eines Motors antreibbares Axialpumpenrad vorgesehen ist, was den Nachteil eines verhältnismäßig hohen Aufwands für die Antriebs- und Lagerorgane mit sich bringt.In a known device of this type (DE-PS 26 50 858) the guide jacket is arranged in a fixed manner and protrudes from it a likewise fixed, axially directed partition to the roller jacket. At the end of the axial extension of the guide wall and the dividing wall, a conveyor wheel rotating with the roller jacket is provided, which together with the dividing wall forms the circulating device. This arrangement has the advantage that the relative speed of the heat transfer medium, which is responsible for the temperature distribution in the roll shell, in relation to the roll shell can be set independently of the supply and discharge of the heat transfer medium to and from the inside of the roll solely by appropriate dimensioning of the circulating devices. The channels in the roller bearings can be made correspondingly small. However, this arrangement has the disadvantage that it is comparatively complex, in particular if different flow velocities within the roll cavity are to be predeterminable. - Furthermore, a cooling or heating roller is known (US-A 34 01 745), in which an externally drivable by means of a motor axial pump wheel is provided, which has the disadvantage of a relatively high cost for the drive and bearing members.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Vorrichtung der eingangs genannten Art zu schaffen, die weniger aufwendig ist, insbesondere im Hinblick auf die Einstellung unterschiedlicher Umwälzgeschwindigkeiten.The invention is therefore based on the object of providing a device of the type mentioned at the outset, which is less complex, in particular with regard to the setting of different circulation speeds.

Die erfindungsgemäße Lösung besteht darin, daß die Einrichtung zum Umwälzen des Wärmeträgermediums von einem im Walzeninneren feststehend angeordneten Pumpenrad gebildet ist. vorzugsweise ist das Pumpenrad innerhalb des Führungsmantels als Axialrad angeordnet. Es besteht aber auch die Möglichkeit, es als Radial- oder Axialradialrad am Ende des Führungsmantels vorzusehen. Zur Steigerung des Wirkungsgrads kann eine Leitvorrichtung vorgesehen sein, die besonders einfach bei einem innerhalb des Führunqsmantels befindlichenThe solution according to the invention consists in that the device for circulating the heat transfer medium is formed by a pump wheel which is fixedly arranged in the interior of the roller. the pump wheel is preferably arranged as an axial wheel within the guide jacket. But there is also the possibility of providing it as a radial or axial radial wheel at the end of the guide jacket. In order to increase the efficiency, a guiding device can be provided which is particularly simple with one located inside the guiding jacket

Axialrad als mit dem Führungsmantel verbundenes Leitgitter ausgebildet sein kann. - Es kann zweckmäßig sein, die Umwälzeinrichtung drehrichtungs-unabhängig auszuführen, damit ihre Wirkung auch bei Drehrichtungsumkehr der Walze erhalten bleibt bzw. damit gleiche Umwälzeinrichtungen für Walzen unterschiedlicher Betriebsdrehrichtung verwendet werden können.Axial wheel can be designed as a guide grid connected to the guide jacket. - It may be expedient to design the circulating device independently of the direction of rotation, so that its effect is retained even when the direction of rotation of the roll is reversed, or so that the same circulating devices can be used for rolls with different operating directions.

Es hat sich gezeigt, daß ein innerhalb des Walzeninneren feststehend angeordnetes Pumpenrad wesentlich weniger aufwendig ist als eine mit besonderem Antrieb ausgerüstete Umwälzpumpe, insbesondere auch unter Berücksichtigung der notwendigen Größe der Strömungsquerschnitte in den Mediumsdurchführungen in den Walzenlagern. Für die Einstellung unterschiedlicher Umwälzgeschwindigkeiten ist es lediglich erforderlich, entsprechend unterschiedliche Pumpenräder vorrätig zu halten. Eine weitere Abstufung der Umwälzgeschwindigkeit kann durch die wahlweise Zuordnung von Leitvorrichtungen erreicht werden. Die drehrichtungsunahbängige Ausführung der Umwälzeinrichtungen geschieht nach den in der Strömungstechnik geläufigen Grundsätzen. Beispielsweise wird bei einem Radialrad die Drehrichtungsunabhängigkeit der Fördermenge durch Verwendung von radial verlaufenden Schaufeln erreicht.It has been shown that a pump wheel fixedly arranged inside the roller is considerably less complex than a circulation pump equipped with a special drive, in particular also taking into account the necessary size of the flow cross-sections in the medium bushings in the roller bearings. To set different circulation speeds, it is only necessary to keep different pump wheels in stock. A further gradation of the circulation speed can be achieved by the optional assignment of guide devices. The design of the circulators, which is independent of the direction of rotation, is carried out according to the principles familiar in fluid technology. For example, in the case of a radial wheel, the direction of rotation of the delivery rate is achieved by using radially extending blades.

Die Erfindung wird im folgenden näher unter Bezugnahme auf die Zeichnung erläutert, die ein vorteilhaftes Ausführungsbeispiel in einem schematischen Längsschnitt veranschaulicht.The invention is explained in more detail below with reference to the drawing, which illustrates an advantageous embodiment in a schematic longitudinal section.

Die Kühl- oder Heizwalze wird gebildet von einem Walzenmantel 1, stirnseitigen Wänden 2, 3 und allgemein bei 4 bzw. 5 angedeuteten Lagern, die der Walze eine angetriebene oder mit einer geführten Bahn mitlaufende Rotationsbewegung gestatten. Die Walze schließt das hohle Walzeninnere 6 ein, dem in bekannter Weise über die Lager 4 und 5 ein flüssiges Wärmeträgermedium in solcher Weise zu- und abgeführt wird, daß es von dem flüssigen Medium im wesentlichen vollständig gefüllt ist. Die Zu- und Abfuhrmenge des Mediums wird ausschließlich nach der auszutauschenden Wärmemenge bemessen, ohne Rücksicht auf die am Walzenmantel zur Erreichung des erforderlichen Wärmeübergangs erforderlichen Geschwindigkeit.The cooling or heating roller is formed by a roller shell 1, end walls 2, 3 and generally at 4 or 5 indicated bearings, which allow the roller to be driven or to rotate with a guided web. The roller encloses the hollow roller interior 6, which is supplied and discharged in a known manner via the bearings 4 and 5 in such a way that it is essentially completely filled by the liquid medium. The supply and discharge quantity of the medium is measured exclusively according to the amount of heat to be exchanged, regardless of the speed required on the roller jacket to achieve the required heat transfer.

Konzentrisch zum Walzenmantel 1 ist innerhalb des Walzeninneren 6 ein Führungsmantel 7 in geeigneter Weise so befestigt, daß er mit der Walze umläuft. Er schließt mit dem Walzenmantel einen Zylinderspalt 8 ein, in welchem das Wärmeträgermedium durch interne Umwälzung auf die für den Wärmeübergang erforderliche Geschwindigkeit in Axialrichtung gebracht wird. Dabei muß davon ausgegangen werden, daß infolge der Reibungsverhältnisse und ggf. vorhandener Führungsmittel das Wärmeträgermedium eine Umfangsgeschwindigkeit aufweist, die nicht wesentlich geringer ist als diejenige des Walzenmantels und des Führungszylinders.Concentric to the roll jacket 1, a guide jacket 7 is fastened in a suitable manner within the roll interior 6 such that it rotates with the roll. It includes a cylinder gap 8 with the roll shell, in which the heat transfer medium is brought to the speed required for heat transfer in the axial direction by internal circulation. It must be assumed that the heat transfer medium has a circumferential speed which is not significantly lower than that of the roll shell and the guide cylinder due to the frictional conditions and any guide means present.

Innerhalb des Führungszylinders ist ein als Axialrad ausgebildetes Pumpenrad 9 angeordnet, das auf einer feststehenden Welle 10 sitzt, die durch das Lager 4 nach außen geführt und dort koaxial zum Lager und zur Walze gehalten ist. Dem Pumpenrad 9 kann auf der einen oder anderen Seite ein Gitter 11 als Leitapparat vor- bzw. nachgeschaltet sein.Arranged inside the guide cylinder is a pump wheel 9 designed as an axial wheel, which is seated on a fixed shaft 10 which is guided through the bearing 4 to the outside and is held there coaxially with the bearing and the roller. A grid 11 can be connected upstream or downstream of the pump wheel 9 on one side or the other as a guide apparatus.

Je nach Drehrichtung der Walze verursachte das Pumpenrad 9 im Walzeninneren eine Umwälzung, deren Richtung mit durchgezogenem bzw. gestricheltem Pfeil angedeutet ist. Das Pumpenrad und der Leitapparat können ohne weiteres so bemessen werden, daß die axialen Strömungsgeschwindigkeiten am Walzenmantel das 0,5 bis 5-fache der Walzenumfangsgeschwindigkeit erreicht. Da kein Antrieb für das feststehende Pumpenrad erforderlich ist und sowohl dieses als auch der ggf. vorgesehene Leitapparat 11 sehr einfach ausgeführt sein kann, wird dieses Ergebnis mit sehr geringem Aufwand erreicht, wobei es keinerlei Schwierigkeiten bereitet, Pumpenräder und Leitgitter in unterschiedlicher Größe für unterschiedliche Walzenabmessungen und Strömungsgeschwindigkeiten vorrätig zu halten oder von Fall zu Fall kurzfristig anzufertigen.Depending on the direction of rotation of the roller, the pump wheel 9 caused circulation in the interior of the roller, the direction of which is indicated by a solid or dashed arrow. The impeller and the diffuser can be so easily will measure that the axial flow velocities at the roll shell reaches 0.5 to 5 times the roll circumferential speed. Since no drive is required for the fixed pump wheel and both this and the guide device 11 which may be provided can be made very simple, this result is achieved with very little effort, it being no problem to produce pump wheels and guide grids in different sizes for different roller dimensions and to keep flow velocities in stock or to make them at short notice from case to case.

Strichpunktiert ist ein Radialrad 12 angedeutet, daß an die Stelle des Axialrades 9 treten kann und bei Ausrüstung mit radial verlaufenden Schaufeln drehrichtungs-unabhängig mit gleicher Geschwindigkeit in Pfeilrichtung fördert.Dash-dot lines indicate a radial wheel 12 that can take the place of the axial wheel 9 and, when equipped with radially extending blades, independently of the direction of rotation at the same speed in the direction of the arrow.

Der Führungsmantel 7 kann sehr dünn ausgeführt werden, weil die Druckdifferenzen im internen Kreislauf klein sind.The guide jacket 7 can be made very thin because the pressure differences in the internal circuit are small.

Claims (5)

1. Kühl- oder Heizwalze, deren Walzenlager Kanäle zur Zu- und Abfuhr eines flüssigen Wärmeträgermediums zum bzw. vom Walzeninneren (6) enthalten, der eine Einrichtung zum Umwälzen des das Walzeninnere im wesentlichen vollständig füllenden Wärmeträgermediums sowie einen Führungsmantel (7) zum Führen des Umwälzstroms entlang dem Walzenmantel (1) einschließt, dadurch gekennzeichnet, daß die Einrichtung zum Umwälzen des Wärmeträgermediums von einem im Walzeninneren (6) feststehend angeordneten Pumpenrad (9, 12) gebildet ist.1.Cooling or heating roller, the roller bearings of which contain channels for supplying and removing a liquid heat transfer medium to and from the roller interior (6), which has a device for circulating the heat transfer medium which essentially completely fills the interior of the roller and a guide jacket (7) for guiding the Circulating flow along the roll jacket (1), characterized in that the device for circulating the heat transfer medium is formed by a pump wheel (9, 12) fixedly arranged in the inside of the roll (6). 2. Kühl- oder Heizwalze nach Anspruch 1, dadurch gekennzeichnet, daß das Pumpenrad (9) innerhalb des Führungsmantels (7) als Axialrad angeordnet ist.2. Cooling or heating roller according to claim 1, characterized in that the pump wheel (9) within the guide shell (7) is arranged as an axial wheel. 3. Kühl- oder Heizwalze nach Anspruch 1, dadurch gekennzeichnet, daß das Pumpenrad (12) als Radial- oder als Axialradialrad am Ende des Führungsmantels (7) angeordnet ist.3. Cooling or heating roller according to claim 1, characterized in that the pump wheel (12) is arranged as a radial or as an axial radial wheel at the end of the guide jacket (7). 4. Kühl- oder Heizwalze nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß dem Pumpenrad (9) eine Leitvorrichtung (11) vor- bzw. nachgeschaltet ist.4. cooling or heating roller according to one of claims 1 to 3, characterized in that the pump wheel (9) is a guide device (11) upstream or downstream. 5. Kühl- oder Heizwalze nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Umwälzeinrichtung richtungsunabhängig ausgeführt ist.5. Cooling or heating roller according to one of claims 1 to 4, characterized in that the circulating device is designed independent of direction.
EP85105742A 1984-05-10 1985-05-10 Heating or cooling roller Expired EP0162381B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8414320U DE8414320U1 (en) 1984-05-10 1984-05-10 Cooling or heating roller
DE8414320U 1984-05-10

Publications (2)

Publication Number Publication Date
EP0162381A1 true EP0162381A1 (en) 1985-11-27
EP0162381B1 EP0162381B1 (en) 1988-03-23

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EP85105742A Expired EP0162381B1 (en) 1984-05-10 1985-05-10 Heating or cooling roller

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EP (1) EP0162381B1 (en)
DE (2) DE8414320U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT413112B (en) * 2000-10-05 2005-11-15 Metso Paper Inc DEVICE FOR THE EQUAL DISTRIBUTION OF LOCAL THERMAL LOADS

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19822531B4 (en) * 1998-05-19 2006-11-30 Voith Patent Gmbh calender roll

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE225448C (en) *
DE613662C (en) * 1930-04-27 1935-05-23 Teerverwertung M B H Ges Device for cooling liquid substances from two coaxially nested drums that can be moved relative to one another
US3237685A (en) * 1961-11-29 1966-03-01 Dow Chemical Co Fluid heated roll
US3401745A (en) * 1965-05-20 1968-09-17 Winkler Fallert & Co Ltd Heat transfer roller having fluid circulating means therein
DE2646111A1 (en) * 1976-10-13 1978-04-27 Kraftanlagen Ag Distributor for liq. heat transfer medium inside e.g. cooling rollers - is charged and discharged to and form the roller via trunnion giving accurate temp. control
DE2650858A1 (en) * 1976-11-06 1978-05-11 Erich Pagendarm CHILLING AND HEATING ROLLERS FOR FLEXIBLE SHEETS, POWDER-SHAPED OR PASTE-SHAPED MATERIALS AND THE LIKE
DE3014891A1 (en) * 1980-04-17 1981-10-22 Schwäbische Hüttenwerke GmbH, 7080 Aalen Paper making machine or coating machine heated roller - has extra feeds to deliver heating medium to roller mantle end zones

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE225448C (en) *
DE613662C (en) * 1930-04-27 1935-05-23 Teerverwertung M B H Ges Device for cooling liquid substances from two coaxially nested drums that can be moved relative to one another
US3237685A (en) * 1961-11-29 1966-03-01 Dow Chemical Co Fluid heated roll
US3401745A (en) * 1965-05-20 1968-09-17 Winkler Fallert & Co Ltd Heat transfer roller having fluid circulating means therein
DE2646111A1 (en) * 1976-10-13 1978-04-27 Kraftanlagen Ag Distributor for liq. heat transfer medium inside e.g. cooling rollers - is charged and discharged to and form the roller via trunnion giving accurate temp. control
DE2650858A1 (en) * 1976-11-06 1978-05-11 Erich Pagendarm CHILLING AND HEATING ROLLERS FOR FLEXIBLE SHEETS, POWDER-SHAPED OR PASTE-SHAPED MATERIALS AND THE LIKE
DE3014891A1 (en) * 1980-04-17 1981-10-22 Schwäbische Hüttenwerke GmbH, 7080 Aalen Paper making machine or coating machine heated roller - has extra feeds to deliver heating medium to roller mantle end zones

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT413112B (en) * 2000-10-05 2005-11-15 Metso Paper Inc DEVICE FOR THE EQUAL DISTRIBUTION OF LOCAL THERMAL LOADS

Also Published As

Publication number Publication date
DE8414320U1 (en) 1985-09-19
DE3561975D1 (en) 1988-04-28
EP0162381B1 (en) 1988-03-23

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