EP3583264B1 - Trockenhaube, trockenanordnung und verwendung einer solchen - Google Patents

Trockenhaube, trockenanordnung und verwendung einer solchen Download PDF

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Publication number
EP3583264B1
EP3583264B1 EP18704521.6A EP18704521A EP3583264B1 EP 3583264 B1 EP3583264 B1 EP 3583264B1 EP 18704521 A EP18704521 A EP 18704521A EP 3583264 B1 EP3583264 B1 EP 3583264B1
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EP
European Patent Office
Prior art keywords
drying
nozzle box
bearing
housing
bearings
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.)
Active
Application number
EP18704521.6A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3583264A1 (de
EP3583264C0 (de
Inventor
Andreas BÖGERSHAUSEN
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.)
Voith Patent GmbH
Original Assignee
Voith Patent GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Publication of EP3583264A1 publication Critical patent/EP3583264A1/de
Application granted granted Critical
Publication of EP3583264B1 publication Critical patent/EP3583264B1/de
Publication of EP3583264C0 publication Critical patent/EP3583264C0/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • D21F5/04—Drying on cylinders on two or more drying cylinders
    • D21F5/042—Drying on cylinders on two or more drying cylinders in combination with suction or blowing devices
    • D21F5/044—Drying on cylinders on two or more drying cylinders in combination with suction or blowing devices using air hoods over the cylinders
    • 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
    • D21F5/004—Drying webs by contact with heated surfaces or materials
    • 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
    • D21F5/14—Drying webs by applying vacuum
    • D21F5/143—Drying webs by applying vacuum through perforated cylinders
    • 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
    • D21F5/18—Drying webs by hot air
    • D21F5/181—Drying webs by hot air on Yankee cylinder
    • 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
    • D21F5/18—Drying webs by hot air
    • D21F5/182—Drying webs by hot air through perforated cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes

Definitions

  • the invention relates to a drying hood, a drying arrangement comprising such and the use of the drying hood in such a drying arrangement.
  • drying hoods are, for example, from the EP 1 347 096 A2 or U.S. 5,410,819 A known.
  • Moist or wet fibrous webs such as paper or cardboard webs, are dried by means of drying arrangements in drying sections of machines, such as paper or cardboard manufacturing machines.
  • the fibrous web is supplied with convection and/or radiant heat for its drying.
  • the fibrous web to be dried is usually guided along a partial area of the outer circumference of one or more heated or heatable drying cylinders.
  • the liquid contained in the fibrous web evaporates. This is removed by suction via a drying hood arranged above the drying cylinder.
  • the resulting exhaust air has high amounts of moisture or moisture loads.
  • the extracted air is replaced by the continuous supply of comparatively dry and hot supply air.
  • Drying hoods include a plurality of nozzle boxes. Each nozzle box has a large number of outlet openings for the supply air for drying the fibrous web.
  • the nozzle boxes are arranged inside the housing of the drying hood and aligned in such a way that their outlet openings point to the outer circumference of the drying cylinder, ie to the fibrous web to be dried.
  • the nozzle boxes are arranged between the housing of the drying hood and the fibrous web to be dried during operation of the drying hood.
  • the nozzle boxes are directly opposite the fibrous web.
  • mutually adjacent nozzle boxes can delimit or form extraction openings for the exhaust air.
  • the nozzle boxes are part of an air duct system of the drying hood.
  • the air control system has at least one supply channel for the supply air, the flow-conducting - preferably via corresponding distribution channels - with the individual nozzle boxes is connected.
  • Moisture-laden exhaust air is discharged from the drying hood, more precisely, from the gap which these delimit with the lateral surface of the drying cylinder, via the suction openings arranged between the nozzle channels or formed by them.
  • the suction openings are connected in a flow-conducting manner via corresponding suction ducts to an exhaust air duct in order to suck the exhaust air out of the drying hood.
  • the drying hood or the drying arrangement are therefore assigned corresponding devices (eg fan, suction, heating, etc.) for air transport and processing.
  • the air duct system, the distribution, supply and exhaust air ducts can be arranged partially or completely within the housing of the drying hood.
  • the moisture-laden exhaust air can be between approx. 150°C and 500°C hot.
  • the temperature difference between supply air and extract air can be between 50 and 250 K.
  • the invention relates to the objects mentioned at the outset.
  • the components within the drying hood around which the supply and exhaust air flows are also subjected to different thermal loads.
  • the components can therefore expand to different extents during operation of the drying hood. This leads to thermally induced stresses within these components themselves. Since the drying hood serves as a supporting structure for the components arranged therein, these stresses are transferred to the drying hood. This can result in undesirable mechanical stresses, deformations or even damage to the same during operation.
  • the invention is therefore based on the object of further developing a drying hood of the type mentioned at the outset in such a way that stresses and states of deformation on it, which can lead to damage, are avoided.
  • the structure of such a system should be less complex and assembly should be facilitated by a high degree of prefabrication.
  • a hood dryer and a drying arrangement such as a use of the hood dryer according to the features of the independent claims.
  • the dependent claims relate to particularly preferred embodiments of the invention.
  • the inventor has recognized that by providing two bearings with different translational degrees of freedom compared to the fixed clamping of the axial ends of the nozzle box, disadvantageous stress states can be avoided during operation of the drying hood.
  • disadvantageous stress states can be avoided during operation of the drying hood.
  • forces that create a torsion Exerting loads on the nozzle boxes, through the interaction of the two bearings, are dissipated in a targeted manner and without tension or deformation onto the drying hood. Therefore, the disadvantages known from the prior art can be avoided by mounting the individual nozzle boxes according to the invention.
  • nozzle box is understood to mean the object defined at the outset, which is part of a dryer hood also described there.
  • bearing is to be understood as an element in the sense of statics, which creates a connection between two elements, here the corresponding nozzle box and the housing of the drying hood, and force quantities (forces and moments) that result from the movement of one of the two Elements are created, transferred to the other element.
  • a degree of freedom in the mechanical sense.
  • a body that can be moved freely in space has a total of 6 degrees of freedom, namely three translational and three rotational. These correspond to the three spatial axes of a Cartesian coordinate system.
  • the bearings according to the invention are designed in such a way that they differ by one in terms of their translatory degrees of freedom. This means, for example, that the second bearing allows a relative axial movement of the nozzle box to the drying hood (also called longitudinal movement or linear movement) along two spatial axes, whereas the first bearing only allows such an axial movement with regard to a (single) spatial axis.
  • the second bearing allows (three) axial movements and the first bearing (precisely) two axial movements.
  • such a difference of at least one degree of freedom would be possible, so that the first bearing has a translational degree of freedom of (exactly) three and the second bearing has exactly one. If the bearings are arranged in the area of the axial ends of the respective nozzle box, then the relevant axial end of the respective nozzle box has the corresponding degree of freedom of the bearing in which it is mounted.
  • movements of the nozzle box relative to the housing as a result of manufacturing tolerances (e.g. bearing play) resulting from the manufacture of the bearing are not regarded as (additional) degrees of freedom.
  • the definition of the bearing according to the invention with regard to the difference in translatory degrees of freedom can alternatively be described as follows, if it is assumed that the degree of freedom of the first bearing is two and that of the second bearing is one:
  • the first bearing is designed as a double-displaceable bearing, which is set up in such a way that it allows the nozzle box to be displaced relative to the housing along the longitudinal axis of the nozzle box and along a transverse axis running perpendicular thereto.
  • the second bearing is designed as an easily displaceable bearing, which is set up in such a way that it allows the nozzle box to be displaced relative to the housing (only) along the transverse axis.
  • This definition says nothing else than the just mentioned difference in translational degrees of freedom between the two camps.
  • the first bearing allows a linear displacement of the nozzle bar along its longitudinal and transverse axis and the second bearing allows such a linear displacement relative to the drying hood only in the transverse direction of the nozzle bar.
  • the fixed clamping mentioned at the outset forms a fixed bearing which initially suppresses or prevents all translational and rotational movements of the component connected to it. It therefore has both a translational and a rotational degree of freedom of zero.
  • a displaceable bearing is mentioned, then this means that the bearing itself is not necessarily displaced, but rather a corresponding movement or displacement (axial movement or linear movement) of the component mounted on this allows in the corresponding spatial axis.
  • a drying cylinder is understood to mean a heated or heatable roller that is driven during normal operation of the drying arrangement.
  • the fibrous web to be dried can be guided indirectly on its outer circumference.
  • the drying cylinder rotates about its axis of rotation relative to the stationary drying hood.
  • Such a drying cylinder can also be designed as a Yankee cylinder.
  • the longitudinal axis of the nozzle box describes its longitudinal extension in space. It can also correspond to the longitudinal axis of symmetry of the same.
  • the longitudinal axis can correspond in space to the X-axis of a Cartesian coordinate system.
  • the transverse axis of the nozzle box is perpendicular to the longitudinal axis of the nozzle box. It describes the width of the nozzle box and can run according to the Y-axis of a Cartesian coordinate system.
  • the transverse axis can represent a transverse axis of symmetry of the respective nozzle box.
  • the Nozzle boxes can be arranged inside the drying hood on the outer circumference of the drying cylinder. And in such a way that their respective longitudinal axes run parallel to the axis of rotation of the drying cylinder.
  • the nozzle boxes can be positioned within the drying hood in such a way that their respective transverse axes are parallel to a tangent to the jacket (outer circumference) of the drying cylinder, at the point at which a perpendicular between the axis of rotation of the drying cylinder and the corresponding longitudinal axis of the drying cylinder nozzle bar cuts the jacket of the drying cylinder.
  • the nozzle boxes and the drying cylinder face each other in order to dry the fibrous web transported between them by the drying cylinder.
  • the nozzle boxes form a gap with the outer surface of the drying cylinder or limit such a gap.
  • Outlet openings for supply air to the drying hood and/or suction openings for exhaust air from the drying hood can be provided on the side of the nozzle beam facing the lateral surface of the drying cylinder.
  • a fibrous web within the meaning of the invention is understood to mean a scrim or tangle of fibers such as wood fibers, plastic fibers, glass fibers, carbon fibers, additives or the like.
  • the fibrous web can be in the form of a paper, cardboard or tissue web. It can essentially comprise wood fibers, with small amounts of other fibers or also additives and additives being able to be present. Depending on the application, this is left to the specialist.
  • this definition includes not only air but also an air-water mixture, such as an aerosol or steam, at basically any temperature and any pressure.
  • At least partially means partially or completely.
  • drying hood partially or completely surrounds the nozzle boxes, this means that these are at least partially accommodated within the housing.
  • the nozzle boxes are mounted individually (on the housing), this means that they are provided with such bearings independently of one another, ie separately.
  • Each individual nozzle box is thus arranged to be movable relative to the housing on which it is suspended in at least one linear direction, independently of the neighboring nozzle boxes.
  • a first and second bearing is assigned to the corresponding nozzle box.
  • the housing of the drying hood can be designed in one or more parts.
  • individual components can be prefabricated and assembled to form structural components and then result in a corresponding part of the housing.
  • the individual parts are then assembled to form the complete housing. This enables simple and safe pre-assembly. Because the necessary welding work does not have to be carried out on site inside the drying hood, but directly on a workbench.
  • the two bearings according to the invention can be designed in such a way that they are purely linear bearings. They only allow linear movements and block rotations, i.e. they do not allow any rotational degrees of freedom. In such a case, they are not designed as pivot bearings, and are therefore free of rotational degrees of freedom. In other words, the rotational degree of freedom is zero.
  • the bearings according to the invention could therefore be designed in such a way that they only have translational degrees of freedom, ie only allow a pure displacement or a plurality of displacements in the linear direction.
  • bearings are designed as link guides, this has the advantage that the construction of such a bearing is comparatively simple and production is inexpensive. If plain bearings are also used, they can be operated with comparatively little maintenance and reliably even at high temperatures.
  • At least one of the two bearings could be designed as a deformation bearing, such as an elastomer bearing.
  • Deformation bearings do not allow a displacement or rotation of the mounted component by a rigid, predetermined mechanism, such as that of a link guide (solid body movement), but by deformation of the bearing - more precisely its material - itself.
  • An arrangement of the two bearings in such a way that the first bearing is in the area of one axial end of the nozzle box and the second bearing is in the area of the other axial end--relative to the longitudinal axis of the nozzle box-- has advantages in maintenance and assembly.
  • the bearings are closer to the drying hood and are therefore easily accessible from the outside if appropriate maintenance openings are provided in the drying hood. This applies all the more if the bearings are arranged in the area of the end faces between the nozzle box and the housing of the drying hood.
  • the invention also relates to a drying arrangement for drying a fibrous web such as a tissue paper web, comprising a drying cylinder and a drying hood at least partially surrounding the drying cylinder, the drying hood being designed according to the invention.
  • the invention relates to the use of a drying hood according to the invention in a drying arrangement for drying a fibrous web such as a tissue paper web.
  • the invention relates to a machine for producing or treating a fibrous web, comprising a drying hood according to the invention or a corresponding drying arrangement with a drying hood.
  • the figure 1 shows a simplified schematic representation of a drying arrangement 1 for use in a machine for the production or treatment of a Material web, in particular a fibrous web in the form of a paper, cardboard or tissue web.
  • the drying arrangement 1 is shown in a view, in the installation situation in the machine in a side view looking at the axis of rotation AL of a drying cylinder 3.
  • the axis of rotation AL runs perpendicularly into the plane of the drawing.
  • the drying cylinder 3 can be designed as a heatable cylinder with a closed surface or as a cylinder that can be evacuated—not shown here.
  • the fibrous web to be dried is entrained by the outer circumference 6 thereof and passed through the drying arrangement 1 .
  • the direction of rotation of the drying cylinder 3 (rotating to the right here) therefore corresponds to the machine direction, ie the longitudinal direction of the fibrous web to be dried.
  • the drying arrangement 1 also comprises at least one drying hood 2 at least partially enclosing the drying cylinder 3 in the circumferential direction.
  • the drying hood 2 can be a gas-heated creping cylinder hood.
  • the drying hood 2 comprises a plurality of nozzle boxes 8. These comprise a wall and, together with the outer circumference 6 of the drying cylinder 3, delimit a gap 4 over at least a partial area 5 of its outer circumference 6.
  • Each nozzle box 8 has a large number of outlet openings 9 in order to supply air Drying on the fibrous web, ie flow towards the outer periphery 6 of the drying cylinder 3.
  • the nozzle boxes 8 arranged in the circumferential direction around the axis of rotation AL of the drying cylinder 3 thus run both parallel to one another and parallel to the longitudinal axes axis of rotation AL. They can be arranged in such a way that their longitudinal axes lie on a circumference around the drying cylinder 3 which has a larger diameter than the drying cylinder 3 itself.
  • the longitudinal axes run parallel to the cross-machine direction, ie the width direction of the fibrous web.
  • the length of the nozzle boxes 8 is such that they extend at least over the entire width direction of the fibrous web.
  • An air duct system 11 is assigned to the drying hood 2 for supplying supply air to the drying hood 2 and for discharging exhaust air from it. It can be part of the drying arrangement 1.
  • the air conduction system 11 has at least one supply duct 12 for the (hot and comparatively dry) supply air, which is connected in a flow-conducting manner to the individual nozzle boxes 8 via corresponding distribution ducts, one of which is shown here as an example with 13 .
  • At least one individual distribution channel 13 can be assigned to each nozzle box 8 .
  • Moisture-laden exhaust air is discharged from the drying hood 2 , more precisely from the gap 4 , which these delimit with the lateral surface of the drying cylinder 3 , via the suction openings 7 arranged between the nozzle channels 8 or formed by them.
  • the individual suction openings 7 are connected in a flow-conducting manner to an exhaust air duct 15 via associated individual suction ducts, one of which is designated here by way of example with 14 .
  • the exhaust air (which is more humid than the supply air) is conveyed out of the drying hood 2 via the exhaust openings 7 via the exhaust air duct 15 .
  • the suction openings 7 can extend over the entire length of the respective nozzle boxes 8 .
  • Appropriate devices eg blowers, suction devices, heaters for conveying and treating the air are assigned to the drying hood 2 or the drying arrangement, but these are not shown here.
  • the drying hood 2 forms a housing 16 which accommodates the components shown. Thus, in the present case, it partially surrounds the nozzle boxes 8. The latter are suspended from the housing 16. During operation of the drying arrangement 1, the nozzle boxes 8 are subjected to different temperatures as a result of the incoming and outgoing air. This can lead to locally different thermal expansions. This is accompanied by stresses and displacements of the nozzle boxes 8, which the housing 16 of the drying hood 2 must absorb.
  • nozzle boxes 8 are specially mounted according to one embodiment of the invention.
  • a basic bearing arrangement is shown as an example for a single nozzle box 8 according to a further embodiment.
  • the nozzle box 8 is mounted on the housing 16 via two bearings 17 , 18 .
  • the bearings 17, 18 are here in the area of the axial ends of the nozzle box 8--as seen from the longitudinal axis L thereof.
  • the first bearing 17 is designed here in such a way that it allows a movement of the nozzle box 8 relative to the housing 16 along both the longitudinal axis L and a transverse axis Q of the nozzle box 8 perpendicular thereto.
  • the second bearing 18 is set up in such a way that it only allows a relative movement of the nozzle box 8 to the housing 16 along the transverse axis Q (or a parallel thereto).
  • the two bearings 17, 18 thus differ by one in terms of their translatory degrees of freedom: the first bearing 17 allows two such translatory degrees of freedom, while the second bearing 18, on the other hand, only allows one.
  • the representation of the first bearing 17 by quarter circles is intended to indicate that it has the corresponding two translatory degrees of freedom.
  • the representation of the two semicircles of the second bearing 18 is intended to indicate that this only allows one degree of translational freedom.
  • the lines above and below the two bearings 17, 18 are intended to indicate stops that limit the corresponding linear movement along the direction shown.
  • figure 3 shows a partially sectioned embodiment of a drying arrangement 1 according to the invention in a schematic representation that is not to scale.
  • the two axial ends of a nozzle box 8 and its suspension on the housing 16 of the drying hood 2 are shown in each case.
  • the arrangement of the figure 3 corresponds to the basic principle of the bearing arrangement of figure 2 .
  • Both camps 17, 18 are designed here according to a kind of link guide.
  • an opening 20 is provided in the housing 16 of the drying hood 2, more precisely in the area of the axial ends of the nozzle box 8, an opening 20 is provided.
  • a bolt 19 engages through each opening 20 in a respective groove 21 of the nozzle box 8, namely from outside the housing 16 via the interior of the drying hood 2 enclosed by the housing into the area of the axial end of the nozzle box 8.
  • the bolts 19 can on the side (outside) of the drying hood 2 facing away from the nozzle box 8 with this or with the housing 16 in a non-positive, positive and/or material connection, preferably connected or connectable by welding.
  • corresponding seals 22 can be provided at the respective points on the nozzle box 8 .
  • the at least one groove 21 of at least one of the two bearings 17, 18 could also be formed by the housing 16 of the drying hood 2 and the bolt 19 by the respective nozzle box 8. It would also be conceivable that the groove 21 or the bolt 19 of the at least one bearing 17, 18 is also formed by elements that are separate from the housing 16 or from the nozzle box 8.
  • a first linear stop 23.1 and a second linear stop 23.1 are provided in the area of the axial end of the nozzle box 8, on which the second bearing 18 is arranged (shown here on the right). In the present case, both are used on the one hand to prevent the linear movement of the second bearing 18 in the longitudinal direction of the nozzle box 8 and on the other hand to set a defined gap between the facing faces of the housing 16 and the nozzle box 6 at the relevant axial end of the nozzle box 8.
  • the linear stop 23 prevents the axial end of the nozzle box 8 from moving in both directions in the area where the second bearing 18 is arranged along its longitudinal axis L. In other words, the axial end in question is prevented from moving in the direction of the longitudinal axis by the second axial bearing 18 prevented.
  • the two linear stops 23.1, 23.2 are formed by two separate parts.
  • the second linear stop 23.2 can be an elevation which is arranged in the gap between the mutually facing axial end faces of the nozzle box 8 and the housing 16 and is preferably fastened to the nozzle box 8 or designed in one piece with it.
  • the first linear stop 23.1 can serve as a counter-stop, which is connected to the bolt 19 (or can be made in one piece with it) and is supported on the nozzle box 8 in such a way that it prevents it from moving in the opposite direction along its longitudinal axis .
  • the counter stop and the elevation can also be connected to the bolt 19 or can be designed to be (detachably) connectable. They can be made in one piece with the bolt 19 or the element on which they are placed.
  • the two linear stops 23.1, 23.2 can thus be part of the second bearing 18 or assigned to it.
  • the Figures 4a and 4b each show a schematic, partially sectioned representation through the two bearings 17, 18 of figure 3 seen perpendicular to the long axis. So is in Figure 4a cut along line AA figure 3 and in Figure 4b cut along line BB figure 3 shown. How to the two Figures 4a, 4b removes, the grooves 21 of the two bearings 17, 18 are designed as (straight, an oval contour delimiting) longitudinal grooves. The longitudinal axis or axis of symmetry of the grooves 21 coincides with the transverse axis Q of the corresponding nozzle box 8 (or one parallel thereto).
  • the bolts 19 have an outer shape complementary to the contour of the grooves 21, so that they can move along the transverse axis Q in the groove 19, in which they engage during operation of the drying arrangement 1.
  • the bolts 19 are designed as rotationally symmetrical bodies, ie cylinders.
  • Other shapes - including the grooves 21 - would be conceivable in principle, provided they form a link guide with one another.
  • the mutually facing end faces of the groove 21 and the lateral surface of the bolt 19 form corresponding bearing surfaces of the bearing 17, 18.
  • the bearing surfaces are the sliding surfaces of the plain bearing.
  • the first bearing 17 can therefore be designed in such a way that it has a translatory degree of freedom of two, thus allowing a movement of the nozzle box 8 in both the direction of the longitudinal axis L and in the direction of the transverse axis Q.
  • the first linear stop 23.1 is designed with regard to its outer contour in such a way that it can be inserted axially into the groove 21 and through it over and behind the wall of the nozzle box 8 in a first position.
  • the bolt 19 By rotating the bolt 19 about its longitudinal axis, which coincides with the longitudinal axis of the nozzle box 8 here, for example, the latter is folded against the wall of the nozzle box 8 .
  • This is held captively on the wall of the nozzle box 8 and blocks it from moving along its longitudinal axis.
  • an opposite movement of the nozzle box 8 in a direction toward the first bearing 17 along the longitudinal axis L of the respective nozzle box 8 in both directions is prevented.
  • the bolt 19 can then be connected to the housing 16 in a non-positive, positive and/or material connection.
  • the counter stop or generally the first linear stop 23.1 can thus be designed in the manner of a (releasable) bayonet lock. In summary, only a single translational degree of freedom, namely in the direction of the transverse axis, can be achieved with this bearing 18 .

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  • Drying Of Solid Materials (AREA)
EP18704521.6A 2017-02-20 2018-02-08 Trockenhaube, trockenanordnung und verwendung einer solchen Active EP3583264B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017103422.6A DE102017103422A1 (de) 2017-02-20 2017-02-20 Trockenhaube, Trockenanordnung und Verwendung einer solchen
PCT/EP2018/053147 WO2018149722A1 (de) 2017-02-20 2018-02-08 Trockenhaube, trockenanordnung und verwendung einer solchen

Publications (3)

Publication Number Publication Date
EP3583264A1 EP3583264A1 (de) 2019-12-25
EP3583264B1 true EP3583264B1 (de) 2023-06-28
EP3583264C0 EP3583264C0 (de) 2023-06-28

Family

ID=61192922

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18704521.6A Active EP3583264B1 (de) 2017-02-20 2018-02-08 Trockenhaube, trockenanordnung und verwendung einer solchen

Country Status (5)

Country Link
US (1) US11118310B2 (zh)
EP (1) EP3583264B1 (zh)
CN (1) CN110325682B (zh)
DE (1) DE102017103422A1 (zh)
WO (1) WO2018149722A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202019100745U1 (de) * 2019-02-08 2020-05-11 Autefa Solutions Germany Gmbh Trocknungseinrichtung

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA648526A (en) * 1962-09-11 Midland-Ross Corporation Apparatus for uniform, accelerated drying of web material
AT355907B (de) * 1977-08-26 1980-03-25 Albin F Ing Zwach Streifen-trockenhaube
US5410819A (en) 1994-03-18 1995-05-02 James River Paper Company, Inc. Mounting system for paper dryer nozzle box
US5531033A (en) 1994-10-18 1996-07-02 Asea Brown Boveri, Inc. Controlled profile drying hood
CA2216591C (en) * 1997-09-24 2004-05-11 Asea Brown Boveri Inc. High temperature yankee hood
AT411274B (de) * 2002-03-19 2003-11-25 Andritz Ag Maschf Vorrichtung zum trocknen von papierbahnen, insbesondere tissuepapierbahnen
US20050056393A1 (en) * 2003-09-17 2005-03-17 Reisinger Lee W. Serpentine paper drying machine
WO2014029719A1 (de) * 2012-08-20 2014-02-27 Voith Patent Gmbh Trockenhaube
ITFI20130241A1 (it) * 2013-10-15 2015-04-16 Celli Paper S P A A "componenti di impianti per la produzione di carta ad umido"

Also Published As

Publication number Publication date
WO2018149722A1 (de) 2018-08-23
CN110325682B (zh) 2021-11-30
CN110325682A (zh) 2019-10-11
EP3583264A1 (de) 2019-12-25
US11118310B2 (en) 2021-09-14
US20190368127A1 (en) 2019-12-05
EP3583264C0 (de) 2023-06-28
DE102017103422A1 (de) 2018-08-23

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