WO2020057795A1 - Manchon de presse, son utilisation et rouleau de presse, presse à sabot et utilisation d'un fil de renfort dans un manchon de presse - Google Patents

Manchon de presse, son utilisation et rouleau de presse, presse à sabot et utilisation d'un fil de renfort dans un manchon de presse Download PDF

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Publication number
WO2020057795A1
WO2020057795A1 PCT/EP2019/068484 EP2019068484W WO2020057795A1 WO 2020057795 A1 WO2020057795 A1 WO 2020057795A1 EP 2019068484 W EP2019068484 W EP 2019068484W WO 2020057795 A1 WO2020057795 A1 WO 2020057795A1
Authority
WO
WIPO (PCT)
Prior art keywords
press
polymer layer
press jacket
jacket
reinforcing
Prior art date
Application number
PCT/EP2019/068484
Other languages
German (de)
English (en)
Inventor
Thomas FRÜHAUF
Klaus Hermann
Michael Wokurek
Juanhao ZOU
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
Application filed by Voith Patent Gmbh filed Critical Voith Patent Gmbh
Priority to EP19740333.0A priority Critical patent/EP3853413A1/fr
Priority to CN201980060213.4A priority patent/CN112703288A/zh
Priority to US17/277,390 priority patent/US20220034036A1/en
Priority to JP2021538894A priority patent/JP7280955B2/ja
Publication of WO2020057795A1 publication Critical patent/WO2020057795A1/fr

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/0209—Wet presses with extended press nip
    • D21F3/0218—Shoe presses
    • D21F3/0227—Belts or sleeves therefor
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/0209—Wet presses with extended press nip
    • D21F3/0218—Shoe presses
    • D21F3/0227—Belts or sleeves therefor
    • D21F3/0236—Belts or sleeves therefor manufacturing methods

Definitions

  • the invention relates to a press jacket, in particular for a press device for treating a fibrous web, e.g. for smoothing or dewatering, in detail according to the independent claims.
  • the invention also relates to a press roll, a shoe press and the use of a press jacket in such a one, in detail according to the independent claims.
  • Press devices such as shoe presses have long been part of modern paper machines. They essentially comprise a stationary shoe (also called a press shoe), which extends in a cross-machine direction, and a press jacket that runs around the stationary shoe. The latter is deformable and essentially assumes a tubular shape during operation.
  • the shoe is shaped so that it forms a press nip with a counter roller.
  • the press nip is defined by the contact surface of the counter roller in the shoe.
  • the shoe is designed to be movable and can be moved to the counter roller.
  • Enormous demands are placed on the press jacket in terms of its stability, namely with regard to surface hardness, resistance to pressure, temperature and flydrolysis.
  • the press jacket is also exposed to strong alternating bending loads during operation.
  • This deformation of the press jacket when entering and leaving is also referred to as a changing nip. It is easy to see that the tendency of the press casing to break particularly at this point is very high due to the high mechanical stress. Accordingly, many measures are known from the prior art that improve the stability of the
  • Press sleeve should increase.
  • the press jacket must therefore be sufficiently flexible so that it can be guided around the shoe, it must be sufficiently stiff so that it does not deform or compress too much under the press load in the nip, and it must be sufficiently wear-resistant.
  • Press sleeves therefore consist of a single or multi-layer polymer layer, preferably made of polyurethane, in which reinforcing threads in the form of scrims or fabrics can be embedded.
  • the present invention relates to such generic items mentioned at the outset.
  • Press sleeves known from the prior art tend to premature failure during normal operation as a result of an overload - often only local - in the nip. This occurs when a foreign body passes through the nip during a so-called batz passage. Such an overload often leads to the reinforcement threads or the polymer layer in which they are embedded tearing.
  • a press jacket that e.g. Oil-lubricated from the inside can leak, causing the oil to come into contact with the fibrous web to be produced. As a result, the press jacket must be replaced. In practice, this leads to unplanned downtimes of the pressing device and thus to increased, costly downtimes.
  • a total failure of the press casing due to even local damage to the press casing as a result of an overload during intended operation is to be prevented or the consequences thereof are recognized at an early stage.
  • the downtimes of a press device equipped with such a press jacket are to be reduced.
  • the object is solved by the features of the independent claims.
  • Particularly preferred and advantageous embodiments of the invention are given in the subclaims.
  • the inventors have recognized that local overloads that have already occurred can be better recognized on a press jacket if there is a sufficiently large optical contrast between the reinforcement structure and the at least one polymer layer in which it is embedded. If the overload is large enough, this usually leads to local damage to the reinforcement structure. eg in the form of tears in the threads. Broken threads can then be better recognized with the human eye, so that a planned, premature change of the press cover can take place.
  • the materials of the reinforcement structure and the at least one polymer layer are selected so that their transmittance for visible light differs from one another.
  • the reinforcement structure can shine through the polymer layer under appropriate lighting conditions.
  • the material of the at least one polymer layer is more transparent or more transparent (that is, less opaque) than that of the reinforcing structure.
  • the press jacket can be illuminated with (for the human eye) visible light, for example an LED light.
  • a local overload can then be detected optically, for example in the crawl gear of the machine, in which the press casing rotates more slowly than in the intended operation in which the machine produces the fibrous web.
  • An imminent loss of oil in the press jacket can then be avoided at an early stage by a corresponding exchange of the press jacket.
  • the transmittance describes the proportion of the incident radiation flow or luminous flux that completely penetrates a transparent component.
  • the incident radiation flow that strikes the component can be transmitted, reflected and absorbed by the component. This results in the following power balance of the radiation flux incident on the component in a transmittance (T), a reflectance (R) and an absorption degree (A)
  • the degree of transmission thus corresponds to that part of the incident radiation flow which is reduced by the degree of reflection (R) and the degree of absorption (A).
  • Another term for the degree of transmission is the term total transmission T t .
  • the latter or the transmittance corresponds to the ratio of the reciprocal of the incident radiation flux Ti to the radiation flux T 2 transmitted through the transparent component, that is to say T 2 / T-
  • the degree of transmission or the total transmission are defined and measurable in accordance with ASTM D 1003-00.
  • the measurement can be carried out at any point on the press jacket, for example also at its axial edges, for example in the area of the tabs, by means of which such a press jacket is held on the two lateral tensioning disks.
  • the indication of the transmittance can refer to a brand new, i.e. finished press jacket.
  • Colorants can be dyes - which dissolve at the molecular level in the polymer layer or are adsorbed on the surface of the latter - or pigments, i.e. particles which are insoluble in the material of the polymer layer.
  • a press jacket in the sense of the invention is to be understood as a closed band, hose or jacket which is endless in the circumferential direction about its longitudinal axis and which, as shown, is guided together with a fibrous web through the nip (press nip) of a shoe press.
  • the radially outermost surface (polymer layer) of the press jacket can come into contact with a press felt, from which the fibrous web to be dewatered is carried directly.
  • the press jacket can also come into direct contact with the fibrous web during normal operation come. At its axial ends it is open - as seen in the width direction (along the longitudinal axis).
  • the press jacket can thus be held at these axial ends by two lateral tensioning disks in order to form the shoe press roll.
  • the press jacket instead of being guided through the two lateral tensioning disks, the press jacket, as is the case with open shoe presses, can be guided over the press shoe and several guide rollers. Regardless of whether the press jacket is guided by the tensioning disks or the guide rolls, the press shoe (or the guide rolls) comes into contact with part of the radially innermost surface of the press jacket.
  • the radially outermost surface of such a press casing for example the radially outermost polymer layer thereof, can be provided with grooves and / or blind bores.
  • the longitudinal direction means the direction that runs parallel to the longitudinal axis of the press casing.
  • the longitudinal axis also corresponds to the axis of symmetry or rotation of the finished press jacket or the press roll.
  • the circumferential direction of the press casing extends around the longitudinal axis as seen around its radial boundary.
  • the term parallel also includes those angular deviations of two reinforcement threads lying in different planes of +/- 5 ° to one another.
  • the press jacket or the at least one polymer layer can be made partially or completely from a polymer.
  • a pourable, curable, preferably elastomeric polymer such as polyurethane can be used as the polymer.
  • the polymer can consequently be set as a cast elastomer.
  • polymer layer is meant a layer which comprises such a castable, curable, preferably elastomeric polymer or is produced entirely therefrom.
  • the polymer layer can preferably be a cured layer which is produced in one piece by primary molding. In other words, it is monolithically shaped, that is, manufactured by casting, for example.
  • the term one-part also includes cases in which the one layer was again made from several layers of the same material when the polymer was cast. However, this only insofar as these layers are essentially no longer visible after curing, but a single, preferably gives a uniform layer. The same applies accordingly to the finished press jacket.
  • polymer layers can be arranged one above the other as seen in the radial direction - at least in sections over the width of the press jacket. At least in sections across the width of the press casing means that the press casing e.g. at its axial ends along the longitudinal axis of the press jacket is only one layer, whereas it is formed in two or more layers between the axial ends.
  • the polymer layers can also extend over the entire width of the press jacket. The thickness of the press jacket - and thus the thickness of the individual polymer layers - can vary in sections along the longitudinal axis in a section through its longitudinal axis.
  • the radially outermost polymer layer in the area of the width edges of the press casing may be smaller than in the middle of the press casing.
  • the radially outermost polymer layer can be less thick than a radially inner or radially innermost polymer layer.
  • a total thickness of the finished press jacket in a section through the longitudinal axis thereof in the radial direction can be 5 to 10 mm, preferably 5 to 7, particularly preferably 5 to 6 mm.
  • the press jacket can be made from a single casting, i.e. be made monolithic so that the single layer has the thickness just mentioned.
  • a finished press jacket in the sense of the invention is one whose at least one polymer layer has hardened and possibly finally processed, i.e. for the purpose mentioned in e.g. a shoe press is ready for use.
  • a finished polymer layer means a layer that has hardened.
  • a reinforcing thread in the sense of the invention is understood to mean a flexible, textile line structure which has a dominant extension and a Has uniformity in its longitudinal direction.
  • fiber we mean a single, endless fiber in the manner of a monofilament. If, on the other hand, one speaks of a fiber bundle in the sense of the invention, it is not a question of monofilaments, but in turn a single thread, such as a thread or yarn, that is to say a bundle of continuous fibers or monofilaments.
  • the fiber bundles themselves can certainly be made from twisted fibers.
  • the definition that at least the longitudinal threads are produced as reinforcing threads according to the invention means that only the longitudinal threads are designed in this way or in addition the longitudinal threads and at least one further peripheral thread are produced in this way. If, for example, a layer of circumferential and longitudinal threads is preferably present, this means that at least the longitudinal threads are designed according to the invention.
  • reinforcing structure in the sense of the invention means reinforcing the at least one layer containing or consisting of the polymer - that is to say the polymer layer. The reinforcing structure can be completely embedded in the polymer layer, so that the reinforcing structure does not go beyond the boundary of the polymer layer.
  • the polymer layer takes on the role of a matrix, which surrounds the reinforcement structure and binds to the matrix as a result of adhesive or cohesive forces.
  • a reinforcement structure can textile line structures - z.
  • B. woven, knitted, crocheted, braided or laid - include and can be produced from a corresponding starting material, for example by winding.
  • a single reinforcing thread according to the invention is considered as a textile line structure.
  • Several such reinforcing threads can be designed, for example, as longitudinal and / or circumferential threads, that together they form a textile fabric.
  • the at least one reinforcing thread which is embedded in the at least one polymer layer, then represents the reinforcing structure of the press cover or its polymer layer.
  • Starting material is understood to mean that material or semi-finished product by means of which the reinforcing structure of the finished press jacket according to the invention is produced, that is to say in the present case the at least one reinforcing thread.
  • the reinforcing thread or the reinforcing structure can be produced from or comprise a polymer. Suitable polymers are polyester, polyethylene naphthalate or polyamides, such as aramids.
  • the materials of the at least one polymer layer and the at least one reinforcing thread or the reinforcing structure embedded therein differ
  • a press device means, for example, a shoe press, for example for dewatering or treatment, such as smoothing a fibrous web.
  • the shoe press comprises a shoe press roll and a counter roll, which together form or limit a press nip.
  • the shoe press roll also includes a circumferential press jacket and a standing press element, the so-called press shoe.
  • the latter is supported on a load-bearing, also standing yoke - for example via hydraulic press elements - and is pressed onto the surrounding press jacket.
  • the press jacket rotates relative to the fixed press shoe and yoke and is thereby pressed against the counter roller in the press nip. Press shoe and yoke are arranged radially inside the press jacket.
  • the term standing means that the press element does not rotate relative to the shoe press roll or the counter roll, but can translate - towards and away from the counter roll, preferably in the radial direction thereof - and thus relative to the counter roll.
  • one or more press felts that circulate endlessly in the circumferential direction and / or further press belts that rotate continuously can be guided through the press nip of the shoe press.
  • Such a shoe press can of course comprise more than one press nip.
  • a fibrous web in the sense of the invention is to be understood as a scrim of fibers such as wood fibers, plastic fibers, glass fibers, carbon fibers, additives, additives or the like. So the fibrous web for example, be designed as a paper, cardboard or tissue web. It can essentially comprise wood fibers, whereby small amounts of other fibers or also additives can be present. Depending on the application, this is left to the specialist.
  • a plurality of reinforcing threads are preferably embedded as longitudinal threads and at least one reinforcing thread as peripheral thread, which surrounds the longitudinal threads in the peripheral direction, as scrims in the polymer layer, the advantages according to the invention are particularly well achieved. Because a clutch is particularly good at absorbing local overloads.
  • the advantages according to the invention are achieved particularly well if the transmittance of the material of the at least one polymer layer is between 50% and 90% - also up to 100% - and preferably between 50% and 75% and preferably the transmittance of the material of the at least one polymer layer is greater than the transmittance of the material of the reinforcing structure, which is preferably more than 1.1 to 1.5 times the latter transmittance.
  • the press jacket is constructed from preferably a plurality of polymer layers arranged one above the other in the radial direction. If two polymer layers are provided, the radially inner one is the one with the reinforcing structure according to the invention. This means that the reinforcement structure is only arranged in the radially innermost polymer layer. If three or more polymer layers are provided, then the reinforcement structure is preferably arranged in the second lowest polymer layer, that is to say in the one that lies radially above the radially innermost polymer layer.
  • the invention also relates to a press roll, such as a shoe press roll, for a shoe press for dewatering a fibrous web, the press roll having at least one press jacket according to the invention.
  • a shoe press for dewatering a fibrous web preferably a paper, cardboard, tissue or cellulose web, comprising a press roll and a counter roll, which together form or limit a nip, the press roll comprising a rotating press jacket, the press jacket is designed according to the invention.
  • the invention relates to the use of a press jacket according to the invention for a press, such as a shoe press for dewatering a fibrous web, preferably a paper, cardboard, tissue or cellulose web.
  • Fig. 1 is a partially sectioned, schematic side view of a
  • Fig. 3 is a highly schematic representation of a device for
  • a shoe press 10 is shown in a partially sectioned, schematic side view in FIG. 1, which in the present case comprises a press roll according to the invention, such as a shoe press roll 12, and a counter roll 14.
  • Shoe press roller 12 and counter roller 14 are arranged parallel to one another with respect to their longitudinal axes. Together they form or limit a nip 22.
  • the counter-roller 14 here consists of a cylindrical roller rotating about its longitudinal axis
  • the shoe press roller 12 is composed of a shoe 16, a standing yoke 18 carrying it and a press jacket 20 composed.
  • Shoe 16 and yoke 18 are arranged fixed with respect to the counter roller 14 and the press jacket 20, respectively. That means they don't rotate.
  • the shoe 16 is supported by the yoke 18 and pressed against the radially innermost surface of the press jacket 20 which rotates relative to it by means of hydraulic press elements (not shown).
  • the shoe press 10 is particularly suitable for dewatering fibrous webs 24.
  • a fibrous web 24 with one or two press felts 26, 26 ' is guided through the press nip 22.
  • a pressure is indirectly exerted on the fibrous web 24 in the nip 22 by the press felts 26, 26 '. This takes place in that the radially outermost surface of the counter-roller 14, on the one hand, and the radially outermost surface of the press jacket 20 come into direct contact with the corresponding press felts 26, 26 '.
  • the liquid emerging from the fibrous web 24 is temporarily absorbed by the press felt (s) 26, 26 'and any depressions (not shown) provided in the surface of the press jacket. After leaving the nip 22, the liquid absorbed by the depressions of the press jacket 20 is thrown off before the press jacket 20 enters the press nip 22 again. In addition, the water absorbed by the press felt 26, 26 'can be removed with suction elements after leaving the press nip 22.
  • the press felts 26, 26 ' can be dispensed with.
  • the fibrous web 24 is in direct contact on the one hand with the press jacket 20 and on the other hand with the counter roll 14, which together form a press nip.
  • the latter can then be designed as a heated drying cylinder.
  • the press jacket shown in FIG. 1 can, as shown in the following figures, be designed according to the invention. 2a and 2b, different embodiments of the invention are shown in a cross-section through the longitudinal axis 20 'of the finished press jacket 20, which is not to scale and which is partially shown. The distance between the longitudinal axis 20 'and the radially innermost surface of the corresponding polymer layer of the press jacket 20 is also not shown to scale
  • first polymer layer 20.1 is at the same time the radially outermost polymer layer of the press cover 20.
  • second polymer layer 20.2 is also the radially innermost polymer layer of the press cover 20. Both polymer layers 20.1, 20.2 are immediately adjacent to one another in the radial direction, there is no intermediate layer between these two.
  • a reinforcing structure 20 ′′ can be provided in the second polymer layer 20.2. In the present case, this is completely embedded in the polymer layer 20.2. This is indicated by the hatched circles, which can be textile surface or line structures such as fibers. that the reinforcement structure 20 "does not extend beyond the boundaries of the polymer layer 20.2.
  • the reinforcing structure 20 "here comprises a plurality of reinforcing threads 21 serving as longitudinal thread 21.1. These are arranged in the longitudinal direction of the press jacket 20 over its circumference at a distance and parallel to one another.
  • at least one further reinforcing thread 21 is provided here as a peripheral thread 21.2, which is preferably inside
  • the same polymer layer 20.1, 20.2, 20.3, in which the longitudinal threads 21.1 are also arranged, extends helically in the circumferential direction of the press jacket Circumferential threads 21.2 form a scrim with one another, namely in such a way that the longitudinal threads 21.1 are arranged radially inside the at least one circumferential thread 21.2 - as seen in relation to the longitudinal axis 20 'of the press cover 20.
  • the first and a second polymer layer 20.1, 20.2 are made from a polyurethane. This is available, for example, from a prepolymer and a crosslinker. The respective prepolymer itself can be obtained by reacting an isocyanate with a polyol.
  • FIG. 2b shows a three-layer press jacket in a modification to FIG. 2a. This comprises a — first radially outermost — first polymer layer 20.1, a radially innermost, third polymer layer 20.3 and a second polymer layer 20.2 arranged sandwiched between these two. The arrangement relates - as also shown in FIG. 2a - starting from the longitudinal axis 20 'of the press jacket 20 in its radial direction. This is only in the second
  • a (single) reinforcement structure 20 " is provided for the polymer layer 20.2.
  • this could also be different, so that, alternatively or additionally, such a reinforcement structure 20" could also be arranged in the first polymer layer 20.1 and / or the third polymer layer 20.3.
  • the statements made regarding the reinforcement structure 20 "in FIG. 2a apply analogously.
  • the advantages according to the invention are implemented particularly well if the polyurethane of the at least one polymer layer 20.1, 20.2, 20.3 or all polymer layers is selected such that it is more transparent than the material of the reinforcing structure 20 ".
  • the material of the reinforcement structure 20 "and that of the at least one polymer layer 20.1, 20.2, 20.3 are selected such that their respective degrees of transmission for visible light differ from one another and preferably the degree of transmission of the material of the at least one polymer layer 20.1, 20.2 is the degree of transmission of the material of the Reinforcement structure exceeds 20 ".
  • 3 shows a highly schematic side view of a device for producing a press cover 20 according to the invention.
  • the device has exactly one cylindrical winding mandrel 4, with a starting material 20 "'being applied spirally to the radially outermost surface area thereof.
  • the starting material 20" forms the reinforcing structure 20" of the finished press jacket 20 according to the invention after embedding in the polymer.
  • the illustration shows an initial stage of the manufacturing process.
  • one end of the starting material 20 '' is fastened to a polymer which is arranged on the outer circumference of the winding mandrel 4.
  • the one end of the starting material 20 '' could also directly, ie immediately rest or be applied to the winding mandrel 4 without a polymer being initially provided between the starting material 20 '"and the winding mandrel 4.
  • the starting material 20'" can be a textile fabric or line structure.
  • the winding mandrel 4 is rotatably mounted about its longitudinal axis 20 ', which corresponds to the longitudinal axis of the press jacket to be produced. Longitudinal axis 20 'here extends perpendicularly into the plane of the drawing.
  • a casting material such as pourable, curable elastomeric polymer, for example polyurethane, is fed from above onto a radially outermost surface of the winding mandrel 4 or onto the starting material 20 '' via a line 5 through a casting nozzle 6.
  • Such a casting material can be used, for example, with regard to its pot life and viscosity are selected such that it does not drip off the mandrel 4 during casting, during which the mandrel 4 is rotated about its longitudinal axis in the direction of the arrow.
  • the pouring nozzle 6 is parallel to the nozzle via a suitable guide, not shown in FIG Longitudinal axis 20 'along this relatively along the winding mandrel 4.
  • the starting material 20'" is unrolled and wound into coils on the rotating mandrel 4.
  • the casting material can pass through the starting material 20 '"up to the winding mandrel 4.
  • the polymer forms a radially innermost and preferably elastomeric after the curing step Polymer layer which corresponds to the polymer layer 20.2 of the press casing from FIG. 2a, of which only a part is shown in FIG. 3.
  • the casting material emerging from the casting nozzle 6 is in the present case a mixture of a prepolymer and a crosslinking agent.
  • the former is provided from a prepolymer container, not shown, in which it is stored or stirred.
  • the prepolymer is the reaction product of an isocyanate according to the invention and a polyol.
  • the prepolymer container for example, it can be in the form of a prepolymer from the substances just mentioned
  • the crosslinker can be provided in a crosslinker container.
  • the prepolymer container and the crosslinker container are assigned to the device for setting a press jacket 20. They are connected in a flow-conducting manner via lines, also not shown, to a mixing chamber (not shown) which is arranged upstream of the pouring nozzle 6 in the flow direction.
  • the prepolymer-crosslinking agent mixture is thus produced upstream and outside the pouring nozzle 6, that is to say mixed in the mixing chamber. Regardless of the production of the mixture, this is then applied to the surface of the mandrel 4 to form the at least one polymer layer of the press cover 20.
  • pouring nozzles 6 could be provided. These could be connected to separate prepolymer and crosslinker containers via corresponding lines, in order to also feed different polymers to the majority of the goat nozzles 6 independently of one another.
  • the pouring nozzles 6 could then be arranged at a distance from one another along the longitudinal axis of the press jacket 20 in order to produce a plurality of polymer layers 20.1, 20.2, 20.3 by simultaneously dispensing the polymer from the pouring nozzles 6 in one casting.
  • the press jacket 20 is designed according to the invention.
  • the reinforcing structure 20 ′′ of the at least one polymer layer 20.1, 20.2 could also be constructed from a plurality of starting materials 20 ′ ′′ which are placed one above the other in the radial direction and each run in the longitudinal axis direction and in the circumferential direction of the press jacket 20.

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  • Manufacturing & Machinery (AREA)
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Abstract

L'invention concerne un manchon de presse comprenant au moins une couche polymère dans laquelle est incorporée une structure de renfort, la structure de renfort comprenant au moins un fil de renfort, le matériau de la structure de renfort et celui de ladite au moins une couche polymère étant choisis de sorte qu'ils présentent un taux de transmission de la lumière visible différent l'un de l'autre. L'invention concerne également l'utilisation d'un tel manchon de presse ainsi qu'un rouleau de presse et une presse à sabot.
PCT/EP2019/068484 2018-09-18 2019-07-10 Manchon de presse, son utilisation et rouleau de presse, presse à sabot et utilisation d'un fil de renfort dans un manchon de presse WO2020057795A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP19740333.0A EP3853413A1 (fr) 2018-09-18 2019-07-10 Manchon de presse, son utilisation et rouleau de presse, presse à sabot et utilisation d'un fil de renfort dans un manchon de presse
CN201980060213.4A CN112703288A (zh) 2018-09-18 2019-07-10 压榨套、其应用和压榨辊、靴式压榨机及加强线在压榨套中的应用
US17/277,390 US20220034036A1 (en) 2018-09-18 2019-07-10 Press cover, use thereof, and press roll, shoe press and use of a reinforcing thread in a press cover
JP2021538894A JP7280955B2 (ja) 2018-09-18 2019-07-10 プレスカバー、プレスカバーの使用、ならびにプレスロール、シュープレス、およびプレスカバーにおける補強繊維の使用

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018122779.5 2018-09-18
DE102018122779.5A DE102018122779A1 (de) 2018-09-18 2018-09-18 Pressmantel, dessen Verwendung sowie Presswalze und Schuhpresse

Publications (1)

Publication Number Publication Date
WO2020057795A1 true WO2020057795A1 (fr) 2020-03-26

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PCT/EP2019/068484 WO2020057795A1 (fr) 2018-09-18 2019-07-10 Manchon de presse, son utilisation et rouleau de presse, presse à sabot et utilisation d'un fil de renfort dans un manchon de presse

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US (1) US20220034036A1 (fr)
EP (1) EP3853413A1 (fr)
JP (1) JP7280955B2 (fr)
CN (1) CN112703288A (fr)
DE (1) DE102018122779A1 (fr)
WO (1) WO2020057795A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022258346A1 (fr) 2021-06-10 2022-12-15 Voith Patent Gmbh Enveloppe de rouleau avec détection précoce de dommages

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19613392C1 (de) * 1996-04-03 1997-07-24 Voith Sulzer Papiermasch Gmbh Preßvorrichtung
EP0859082A2 (fr) * 1997-02-17 1998-08-19 Voith Sulzer Papiermaschinen GmbH Bande pour presse, en particulier une enveloppe de pressage

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DE4438354A1 (de) * 1994-10-27 1996-05-02 Voith Sulzer Papiermasch Gmbh Preßmantel und Verfahren zur Herstellung eines Preßmantels
JP3698984B2 (ja) * 2000-11-10 2005-09-21 ヤマウチ株式会社 シュープレス用ベルト
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US20220034036A1 (en) 2022-02-03
CN112703288A (zh) 2021-04-23
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JP7280955B2 (ja) 2023-05-24
EP3853413A1 (fr) 2021-07-28

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