US3633662A - Dryer drum assembly - Google Patents

Dryer drum assembly Download PDF

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Publication number
US3633662A
US3633662A US3355A US3633662DA US3633662A US 3633662 A US3633662 A US 3633662A US 3355 A US3355 A US 3355A US 3633662D A US3633662D A US 3633662DA US 3633662 A US3633662 A US 3633662A
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United States
Prior art keywords
drum
shell
journal
members
side surfaces
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Expired - Lifetime
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US3355A
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English (en)
Inventor
Gordon R Voll
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.)
Beloit Corp
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Beloit Corp
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Publication date
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    • 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
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C15/00—Calendering, pressing, ironing, glossing or glazing textile fabrics
    • D06C15/08—Rollers therefor
    • 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
    • D21F5/021—Construction of the cylinders
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S165/00—Heat exchange
    • Y10S165/135—Movable heat exchanger
    • Y10S165/139—Fully rotatable
    • Y10S165/156—Hollow cylindrical member, e.g. drum

Definitions

  • the present invention relates to drying machinery and more particularly to improvements in steam-heated dryer drum assemblies of the Yankee type.
  • a dryer drum must be capable of efficiently transmitting heat to its surface and be able to withstand operating pressures for safe and efficient operation. These requirements are in diametric conflict with each other since efiicient heat transfer requires minimum shell thickness while stress or pressure resistance requires a means capable of withstanding such a pressure or compensating therefore.
  • Some prior art structures have attempted to meet these conflicting requirements by providing dryer shells having relatively thick dryer shell end portions and end head assemblies whereby the shell-head junctures are relatively massive so as to withstand any operating pressures. However, these structures are incapable of uniformly reacting to thermally induced dimensional changes and subject the dryer shells to a bending moment about the end thereof causing a deformation of the shell and/or separation between the end head assemblies and the shell.
  • the invention features a dryer drum assembly wherein one end of the dryer shell is rigidly connected to an end of the drum journal by an outer head member that carries no axial pressure load. The other end of the shell is supported by an opposed outer head member on the other end of the drum journal which is free to axially move along the journal.
  • These two outer head members carry any radial load on the drum shell directly to the journal.
  • the drum journal has flange portions spaced from the outer head members and from the shell so that any thermally induced dimensional changes have minimal effect on the head-shell juncture and produce only minor stresses on the shell while accommodating relative movement between the head members and the drum journal.
  • Still another object of the invention is to provide a dryer drum assembly wherein thermally induced dimensional changes produce minimal stresses in the drum shell.
  • FIG. 1 is a vertical sectional view, with some parts shown schematically, of an embodiment of the dryer drum assembly constructed in accordance with the principles of the invention.
  • FIG. 2 is a view somewhat similar to FIG. 1, but with some parts omitted of another embodiment of the dryer drum assembly.
  • FIG. 1 wherein an embodiment 10 of a dryer drum assembly is shown having a cylindrical shell 11 of a suitable material, such as iron, steel, etc.
  • the shell 11 has a smooth outer surface for contact with the material being dried, i.e., a moist paper web, and a heat-transmitting inner surface 11b
  • the inner surface 1 lb is provided with a plurality of alternating circumferentially spaced grooves and ridges over its operative length so as to expose'the greatest amount of shell surface to the heating fluid without sacrificing strength characteristics necessary for the shell walls. Additional and more explicit details of such a preferred internally grooved dryer drum construction may be obtained from US. Pat. Nos. 3,24l,25l or 3,258,851 (both owned by the instant assignee and incorporated herein by reference).
  • the dryer shell 11 is concentrically mounted on a hollow drum journal 12.
  • the journal 12 is suitably supported on bearings (not shown) or the like at its respective ends allowing the drum assembly to rotate about the journals in a wellknown manner.
  • the journal 12 is hollow, having a steam inlet means 13 admitting pressurized steam (or some other heat transmitting fluid) from an appropriate source (not shown) to the interior of the journal 12.
  • the steam inlet means 13a acts as a manifold to distribute the steam substantially uniformly throughout the shell interior and is provided with inner-communicating fluid distributing means and 13b that direct the pressurized steam in a uniform manner throughout the shell.
  • the journal 12 is formed, for the sake of assembly and manufacturing convenience, from a plurality of separate joinable portions.
  • the steam inlet end of the journal 12 may be formed to have an interiorly extending shaft stub 12b for positioning the steam inlet means 13 and an exteriorly extending shaft stub 12a for mounting of bearings (not shown) and to provide support surfaces for a radially extending end head assembly 16.
  • the interior shaft stub 12b (which may, if desired, be dispensed with) is radially spaced from and surrounded by an end body portion 120. It will be noted that the shaft stub 12b and end portion 120 are connected along their outer ends and, if desired, may be integrally formed with one another, or may be suitably attached to one another, and by welding or bolting.
  • the end portion 126 tenninates at its inner end beyond the inner end of the stub 12b and is separated from the remainder of the journal 12 by a spacing member 14 (forming the mediate body portion of journal 12) which is attached thereto by appropriate bolt means 14b.
  • the end body portion 120 has an outer flange portion 12d extending radially outwardly therefrom and into close proximity with the inner wall 11b of the dryer shell 11. It will be noted that the flange portion 12d does not contact the shell 11 and is interior of the shell ends.
  • the flange portion, 12d is here shown as being integrally formed with end body portion 12c, however, it may be separately formed and be suitably attached, as by welding or bolting, if desired.
  • the spacing member 14 has extending leg portions 14a which are of a predetermined length for spacing the opposed end portions 12d of the journal 12 to accommodate various dryer shell lengths.
  • the spacing member 14 also provides strength characteristics to the journal and a means of joining, as by bolt means 14b, the opposite ends of the journal into a unitary structure.
  • the other journal end 12d i.e., the condensate outlet end
  • the outwardly extending shaft stub 12a is suitably mountable on bearings (not shown) and is hollow to accommodate a condensate removal means composed of a syphon means 15a extending in opposite directions into dipper tubes 15b or the like in close proximity with the inner shell wall 11b for removal of spent steam and/or condensate in a well understood matter.
  • a condensate removal means composed of a syphon means 15a extending in opposite directions into dipper tubes 15b or the like in close proximity with the inner shell wall 11b for removal of spent steam and/or condensate in a well understood matter.
  • journal 12 is composed of a suitable metallic material to provide necessary strength characteristics to support the dryer assembly 10. Necessarily, such metallic materials undergo thermally induced dimensional changes in accordance with its particular coefficient of thermal expansion. Of course, such dimensional changes occur in all directions but are most noticeable in the direction of greatest extent, i.e., along the length of the journal in the axial direction thereof, and the amount of such dimensional changes is readily calculated.
  • the journal is free from axial contact with the dryer drum for at least such a precalculated distance so that during its dimensional changes no detrimental axial loading of the drum takes place. In this manner, the journal (and all of its various portions) can undergo thermally induced dimensional changes without producing undue bending moments about the shell end or other detrimental stresses in the dryer shell.
  • the dryer shell 11 is radially supported on the opposite journal stubs 12a by means of opposite end head assemblies 16 and 17.
  • the end head assemblies 16 and 17 are composed of outer head members 16a and 17a respectively and spaced inner members 12d.
  • the outer head members 16a and 174 are spaced axially outwardly from the flanges or inner members 12d a distance 19 which is at least equal to the thermally induced dimensional changes occurring in the journal.
  • the distance 19 is at least equal to the thermally induced linear changes occurring in the journal, however, as indicated hereinbefore, such changes are of the greatest extent or moment and therefore the distance between the outer and inner members of the end head assemblies is at least equal to the greatest amount of dimensional change.
  • the dimensional changes that occur within the journal 12 by reason of thermal expansion or contraction fail to induce any detrimental stresses on the drum shell, but the drum shell is sufficiently radially supported on the journal stubs for operation.
  • the end head assemblies 16 and 17 enclose the interior of the drum shell so as to form a chamber therewith, which is appropriately sealed to maintain pressurized stem therein, as will be explained hereinafter.
  • Each of the end head assemblies 16 and 17 are comprised of inner or flange members 12d and outer or headplate members 16a and 17a respectively.
  • the outer members 16a and 17a are of metallic composition and may be in a disclike configuration or a spokelike configuration. Further, these outer members may be of sufficient thickness to be rigid under all operating load conditions or may be formed to be somewhat bendable, at least at the upper regions thereof, to absorb a substantial portion of any axial load.
  • Each of the outer head members 16a and 17a are formed to have a central opening of sufficient size to accommodate the journal stubs 12a and have sidewalls extending from this central opening in a radial direction.
  • the upper end or outer end face surface of each of the outer head members 16a and 17a contact opposite ends of the drum shell 11 are rigidly attached thereto as shown.
  • the sidewalls of the respective head members 16a and 17a are spaced a distance 19 from the inner or flange members 12d.
  • distance 19 is at least equal to the thermally induced dimensional changes occuring in the journal 12 when it is exposed to operating conditions.
  • the distance 19 is more accurately defined by the amount of linear dimensional change occurring in the journal, but that since this change is greater than the other dimensional changes, it is more convenient to refer to merely dimensional changes.
  • the inner end face surfaces of the respective head members 16a and 17a actually define the central opening mentioned hereinbefore and are movably supported on'the journal ends 12a whereby any radial pressure, such as produced by contact with moist web, a nip roll, etc., is transmitted radially only to the journal ends 12a and not to the flange members 12d.
  • one of the outer members, i.e., 16a has its inner end face surface rigidly attached to the journal stub 12a as by bolt means 160, but that this outer member 16a does not carry any axial pressure load since the opposed outer member 17a has its inner face surface in a sup ported and movable relation on the opposite journal stub 12a whereby outer head member 17a (consequently the rigid attached shell 11 and opposed head member 16a) is free (relatively speaking) to move in an axial direction on the journal.
  • the inner end face surface of outer member 17a is provided with a means 17b accommodating relative movement between the journal surface and the head member 17a.
  • this means 17b comprises a low-friction solid sealing means composed of, for example, carbon or some other relatively rigid friction-free material accommodating relative movement between metallic surfaces and having sufficient strength characteristics to withstand the radial load.
  • the space 19 between the outer members 16a and 1711 respectively and the inner or flange members 12d may be exposed to atmospheric pressures so that the side surfaces of the outer members 16a and 17a are not subjected to the steam pressure within the dryer drum.
  • means 18 is positioned between the respective flanges 12d, 12d and outer members 16a, 17a in the vicinity of the shell 11 so as to seal the interior of the shell 11 from atmosphere and to define a pressure chamber within the shell.
  • sealing means 18 may be positioned between the inner side surfaces of the respective outer members 16a and 17a and the respective outer side surfaces of the flange members 12d, 12d by pressure fitting into appropriately sized grooves in such side surfaces.
  • Sealing means 18 is preferably composed of thermally expandable flexibly resilient pressure means capable of withstanding operating stream pressures within dryer drums while being sufficiently resilient to absorb a substantial portion of the expansion pressure and thereby avoid transmitting undue axial pressure to the outer members.
  • thermally expandable flexibly resilient pressure means capable of withstanding operating stream pressures within dryer drums while being sufficiently resilient to absorb a substantial portion of the expansion pressure and thereby avoid transmitting undue axial pressure to the outer members.
  • Such heat seal means are well known in the art and need not be described further.
  • FIG. 2 wherein a further embodiment 20 of a dryer drum assembly constructed according to the principles of the invention is illustrated.
  • the embodiment 20 is substantially similar to the embodiment shown at FIG. 1, except that the steam inlet means 13 is omitted and steam is merely shown as entering through the hollow journal end 12a for distribution by the inner shaft stub 12b throughout the interior of the drum as explained hereinbefore.
  • the condensate removal system 15 as illustrated in FIG. 1 is omitted since intermittent vacuum may be applied for removal of the condensate.
  • the heating fluid may comprise dry heated air wherein no condensate would be present and the inlet pressure be sufficient to drive spent heating fluid out of the shell.
  • the journal 12 of the dryer drum 20 is essentially identical in the construction and assembly of its flanges 12d, end and mediate body portions 12c and 14 as described in conjunction with dryer drum 10.
  • the shell 11 has a smooth outer surface and an interiorly grooved surface llb such as explained in conjunction with reference to the other emb0diment.
  • other dryer shells and journals may be utilized with the end head assemblies of the invention.
  • an outer head member 16a is secured to the journal 12 near its inner end 16b by means of a bolt 160, but otherwise it is identical to the end head assembly 16 described in conjunction with embodiment 10.
  • the opposite movably supported outer head member 17a is supported on the journal stub 12a by means of a ball bearing means 17d.
  • bearing means contain races and bearing balls of conventional construction.
  • Expandable heat seal means 18 are provided between the respective outer head members 160 and 17a and the inner flange members 12d, 12d in the manner explained hereinbefore.
  • outer member 17a may be deliberately designed to be sufficiently flexible or bendable to absorb a substantial portion of the pressure created by the axial expansion of the journal.
  • journal when a heating fluid (such as steam) is introduced into the interior of the drums, the journal, along with its rigidly attached flanges begins to expand (most notably in the linear direction) and the outer flanges of the journal move toward the outer head members respectively into the space between such members and journal ends and somewhat compress the seal means therebetween thereby dissipating the expansion pressure.
  • the dimensional change of the journal does not induce any detrimental stresses on the outer shell of cause any undue bending moment about the shell ends, such as would occur if the journal was rigidly attached to the outer shell.
  • the invention provides a dryer drum assembly comprising a cylindrical shell, a central shaft or journal coaxial with the shell and a pair of opposed end head assemblies interconnecting the shell with the shaft.
  • the shaft has a pair of opposed end flanges extending radially upwardly into the vicinity of the shell and spaced therefrom free of any radial pressure from the shell.
  • a pair of opposed outer members are concentrically mounted on the shaft, axially outwardly from the flanges, and extend radially upwardly into supporting contact with the shell free from any axial pressure on the shaft.
  • a means is positioned between the respective head members and flanges to define a pressure chamber interior of the shell and accommodate relative movement between the flanges and the head members whereby dimensional changes in the shaft fail to induce detrimental bending moments to the shell.
  • the means between the flanges and outer head members comprise flexibly resilient heat seal means, such as pressure gaskets, mounted in the vicinity of the shell.
  • One of the outer head members is rigidly attached to the shaft while the opposite head member is free to move along such shaft. In this manner, the outer head members carry minimal axial pressure, and dimensional changes in the shaft produce no detrimental stresses in the shell.
  • An end head assembly for a dryer drum having a drum shell and a drum journal comprising; a headplate member having extending radial side surfaces, said side surfaces having an inner end surface movably supported on the drum journal and an outer end surface rigidly attached to the drum shell whereby any radial pressure on the shell is transmitted only to the drum journal, a flange member having extended radial side surfaces spaced out of contact with said headplate member side surfaces, said flange member side surfaces having an inner end surface rigidly attached to the drum journal and an outer end surface in the vicinity of the drum shell out of contact therewith whereby any axial pressure is transmitted only to the drum journal, and means positioned between said headplate member and said flange side surfaces accommodating relative movement between said members while providing a thermal seal between said members and the drum shell, said means including a pair of spaced expandable heat seal means, one of said pair being positioned in the vicinity of the drum shell between an outer side surface of said flange member and an inner side surface of said headplate member and the other of said pair being positioned in
  • End head assemblies for a steam heated dryer drum comprising,
  • outer-end surfaces being rigidly attached to respective ends of a drum shell
  • one of said inner end surfaces being rigidly attached to one of said journal ends and the other of said inner end surface being in axially movable contact with the other of said journal ends in a radial load bearing relation
  • each of said inner members being positioned adjacent and axially inwardly a distance from a respective outer member equal to at least any thermally induced dimensional changes occurring in said drum journal, first means positioned between respective adjacently opposite side surfaces of said members in the vicinity of the drum shell, and
  • a second means positioned between said other inner end surface and said other journal end in an axially movable relation thereto, whereby said means maintain stream pressure within the drum shell and permit relative movement between said outer and inner members while avoiding temperature induced stresses to the drum shell.
  • a dryer drum assembly comprising,
  • said shaft having means distributing pressurized stream within said shell and means withdrawing spent steam from said shell
  • said shaft having a pair of opposite flanges positioned in the vicinity of the shaft ends and within the shell periphery out of contact therewith,
  • a pair of opposite head members coaxially mounted on said shaft ends, each outwardly spaced a distance from an adjacently opposite flange equal to at least any thermally induced dimensional changes occuring in said shaft, said head members extending radially outwardly from said shaft into contact with the respective shell ends, one of said head members being rigidly attached to said shaft, the other of said head members being axially movable along said shaft, and
  • An end head assembly for a dryer drum having a drum shell and a drum journal comprising; a head plate member having extended radial side surfaces, said side surfaces having an inner end surface movably supported on the drum journal and an outer end surface rigidly attached to the drum shell whereby any radial pressure on the shell is transmitted only to the drum journal, a flange member having extended radial side surfaces spaced out of contact with said head plate member side surfaces, said flange member side surfaces having an inner end surface rigidly attached to the drum journal and an outer end surface in the vicinity of the drum shell out of contact therewith whereby any axial pressure is transmitted only to the drum journal, and means positioned between said head plate member and said flange side surfaces accommodating relative movement between said members while providing a thermal seal between said members and the drum shell, said means including an expandable heat seal means positioned in the vicinity of the drum shell between an outer side surface of the flange member and an opposed inner side surface of the plate member, and a ball bearing means positioned in the vicinity of the drum axes between an outer surface

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)
  • Paper (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
US3355A 1970-01-16 1970-01-16 Dryer drum assembly Expired - Lifetime US3633662A (en)

Applications Claiming Priority (1)

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US335570A 1970-01-16 1970-01-16

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US3633662A true US3633662A (en) 1972-01-11

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US3355A Expired - Lifetime US3633662A (en) 1970-01-16 1970-01-16 Dryer drum assembly

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US (1) US3633662A (enExample)
JP (1) JPS4822506B1 (enExample)
CA (1) CA925287A (enExample)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4081913A (en) * 1976-07-26 1978-04-04 Salminen Reijo K Pulp and paper drying apparatus and method
US4254561A (en) * 1978-12-06 1981-03-10 J. M. Voith Gmbh Drying cylinder for a paper-making machine
US4440214A (en) * 1980-05-30 1984-04-03 Beloit Corporation Heat transfer roll and method
US20060242855A1 (en) * 2003-09-11 2006-11-02 Konepaja Kopar Oy Rotating steam drying apparatus
US20070051009A1 (en) * 2003-12-30 2007-03-08 Hada Frank S Through-air dryer assembly
US20070245588A1 (en) * 2006-04-21 2007-10-25 Haurie Osvaldo R Cylindrical dryer having conduits for heating medium
US20070289156A1 (en) * 2005-01-05 2007-12-20 Rainer Kloibhofer Device and method for producing and/or finishing a fibrous material
US20080005921A1 (en) * 2005-01-05 2008-01-10 Thomas Gruber-Nadlinger Device and method for producing and/or finishing a web of fibrous material
US20080052946A1 (en) * 2006-09-01 2008-03-06 Beach Matthew H Support apparatus for supporting a syphon
US7802377B2 (en) 2005-01-05 2010-09-28 Voith Patent Gmbh Drying cylinder
US8127462B2 (en) 2006-04-21 2012-03-06 Osvaldo Ricardo Haurie Cylindrical dryer having conduits provided within a plurality of holding plates
US8919008B2 (en) * 2010-05-06 2014-12-30 Andritz Ag Yankee dryer for drying a pulp web
US20150240420A1 (en) * 2012-11-13 2015-08-27 Valmet Aktiebolag Steel-made yankee cylinder
CN105358762A (zh) * 2013-07-05 2016-02-24 福伊特专利有限公司 干燥辊及其制造方法
ITUB20160329A1 (it) * 2016-01-22 2017-07-22 A Celli Paper Spa Cilindro essiccatore monolucido senza impiego di vapore
US9885152B2 (en) * 2013-07-05 2018-02-06 Voith Patent Gmbh Large cylinder drying roller and method for producing a large cylinder drying roller

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60131576U (ja) * 1984-02-13 1985-09-03 株式会社　オリジナルコンフイデンス レコ−ド盤ホルダ−
JPS60148287U (ja) * 1984-03-12 1985-10-02 株式会社　オリジナルコンフイデンス レコ−ド盤ホルダ−
JPS61141284U (enExample) * 1985-02-22 1986-09-01

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1672036A (en) * 1925-01-17 1928-06-05 Barrett Co Heat-exchange cylinder
US3022047A (en) * 1957-11-04 1962-02-20 Swaney Robert Casper Stabil-heat drier

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1672036A (en) * 1925-01-17 1928-06-05 Barrett Co Heat-exchange cylinder
US3022047A (en) * 1957-11-04 1962-02-20 Swaney Robert Casper Stabil-heat drier

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4081913A (en) * 1976-07-26 1978-04-04 Salminen Reijo K Pulp and paper drying apparatus and method
US4254561A (en) * 1978-12-06 1981-03-10 J. M. Voith Gmbh Drying cylinder for a paper-making machine
US4440214A (en) * 1980-05-30 1984-04-03 Beloit Corporation Heat transfer roll and method
US20060242855A1 (en) * 2003-09-11 2006-11-02 Konepaja Kopar Oy Rotating steam drying apparatus
US20070051009A1 (en) * 2003-12-30 2007-03-08 Hada Frank S Through-air dryer assembly
US7841103B2 (en) * 2003-12-30 2010-11-30 Kimberly-Clark Worldwide, Inc. Through-air dryer assembly
US7802377B2 (en) 2005-01-05 2010-09-28 Voith Patent Gmbh Drying cylinder
US20070289156A1 (en) * 2005-01-05 2007-12-20 Rainer Kloibhofer Device and method for producing and/or finishing a fibrous material
US20080005921A1 (en) * 2005-01-05 2008-01-10 Thomas Gruber-Nadlinger Device and method for producing and/or finishing a web of fibrous material
US8127462B2 (en) 2006-04-21 2012-03-06 Osvaldo Ricardo Haurie Cylindrical dryer having conduits provided within a plurality of holding plates
US20070245588A1 (en) * 2006-04-21 2007-10-25 Haurie Osvaldo R Cylindrical dryer having conduits for heating medium
US7614161B2 (en) * 2006-04-21 2009-11-10 Osvaldo Ricardo Haurie Cylindrical dryer having conduits for heating medium
US20080052946A1 (en) * 2006-09-01 2008-03-06 Beach Matthew H Support apparatus for supporting a syphon
US8826560B2 (en) * 2006-09-01 2014-09-09 Kadant Inc. Support apparatus for supporting a syphon
US8919008B2 (en) * 2010-05-06 2014-12-30 Andritz Ag Yankee dryer for drying a pulp web
US20150240420A1 (en) * 2012-11-13 2015-08-27 Valmet Aktiebolag Steel-made yankee cylinder
US9206549B2 (en) * 2012-11-13 2015-12-08 Valmet Aktiebolag Steel-made yankee cylinder
US10179974B2 (en) * 2013-07-05 2019-01-15 Voith Patent Gmbh Method for producing a large cylinder drying roller
CN105358762A (zh) * 2013-07-05 2016-02-24 福伊特专利有限公司 干燥辊及其制造方法
US10676866B2 (en) 2013-07-05 2020-06-09 Voith Patent Gmbh Drying roller and a method for manufacturing the same
US9885152B2 (en) * 2013-07-05 2018-02-06 Voith Patent Gmbh Large cylinder drying roller and method for producing a large cylinder drying roller
US10066340B2 (en) 2013-07-05 2018-09-04 Voith Patent Gmbh Drying roller and a method for the production of same
ITUB20160329A1 (it) * 2016-01-22 2017-07-22 A Celli Paper Spa Cilindro essiccatore monolucido senza impiego di vapore
CN108603337A (zh) * 2016-01-22 2018-09-28 亚赛利纸业设备有限公司 无需蒸汽的扬基烘缸操作
US20190024314A1 (en) * 2016-01-22 2019-01-24 A. Celli Paper S.P.A. Yankee dryer cylinder operating without steam
WO2017125829A1 (en) * 2016-01-22 2017-07-27 A. Celli Paper S.P.A. Yankee dryer cylinder operating without steam

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Publication number Publication date
CA925287A (en) 1973-05-01
JPS4822506B1 (enExample) 1973-07-06

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