EP3022356A1 - Dichtleiste für papier-, karton- oder tissuemaschine aus mehreren werkstoffen - Google Patents
Dichtleiste für papier-, karton- oder tissuemaschine aus mehreren werkstoffenInfo
- Publication number
- EP3022356A1 EP3022356A1 EP14723078.3A EP14723078A EP3022356A1 EP 3022356 A1 EP3022356 A1 EP 3022356A1 EP 14723078 A EP14723078 A EP 14723078A EP 3022356 A1 EP3022356 A1 EP 3022356A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sealing strip
- sealing
- roll shell
- lip
- roll
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G1/00—Calenders; Smoothing apparatus
- D21G1/002—Opening or closing mechanisms; Regulating the pressure
- D21G1/004—Regulating the pressure
-
- 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
- D21F3/10—Suction rolls, e.g. couch rolls
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G1/00—Calenders; Smoothing apparatus
- D21G1/02—Rolls; Their bearings
Definitions
- Sealing strip for paper, board or tissue machine made of several materials
- the invention relates to a sealing strip which is suitable for use in a sealing device for sealing an overpressure or vacuum zone of a suction or blown roll of a Brumate al processing and / or manufacturing machine, in particular paper, board or Tissuemaschine.
- Sealing strips of the aforementioned type are used for a long time in suction or blow rolls of paper, board or Tissuemaschine to seal over or under pressure against the environment by their sealing surface is made against the inside of the roll shell and with rotational movement of the roll shell with the inside of the roll shell is in frictional contact.
- lubrication of the friction pairing of the sealing surface inside the roll shell takes place by means of spray tubes, which introduce a lubricant - usually water - into the gap between the sealing surface and the inside roll shell.
- Such systems have the disadvantage that the lubricant often can not be effectively brought between the sealing surface and the inside of the roll shell and therefore a high amount of lubricant for sufficient lubrication is required.
- the material from which a conventional sealing strip is made is optimized to provide a high abrasion resistance, with the result that it often has a comparatively high modulus of elasticity and is often hard and brittle. Furthermore, the material thickness of the material portion of the sealing strip in the front wall is often quite low. Therefore, it may happen that the sealing strip can break off in the region of the front wall, when the material section which provides the front wall is brought into frictional contact with the roll shell inner side.
- the object of the present invention is therefore to develop a sealing strip of the aforementioned type to the effect that it can be optimized both in terms of their abrasion resistance and in terms of a possible breakout of parts of the lubricant channel.
- a sealing strip which is suitable for use in a sealing device for sealing an overpressure or vacuum zone of a suction or blower roll of a web material processing and / or manufacturing machine, in particular paper, board or Tissuemaschine.
- the sealing strip in this case has a front end side and a rear end side and an upper side extending between the two end sides, the upper side providing a sealing surface and a lubricant channel formed by a cutout of the sealing strip.
- a front wall is formed at the level of the lubricant channel between the front end side and the lubricant channel and between the lubricant channel and the rear end side a rear wall providing the sealing surface, which has a greater wall thickness than the front wall.
- the sealing strip When the sealing strip is used as intended, the sealing surface for sealing the overpressure or underpressure zone is against the inside of the roll mantle adjustable and by means of the lubricant groove lubricant in the inlet gap between the sealing surface and the inside of the roll shell can be brought, during rotation of the roll shell of the roll shell runs on the front end on the sealing strip and runs at the rear end side of this, the sealing strip according to the invention is characterized in that the sealing strip comprises a first material section providing the sealing surface and a second material section providing the front wall at least in sections, wherein the first material section is made of a first material and the second material section is made of a second material and the first and the second material are at least a physical property, such as modulus of elasticity, abrasion resistance, hardness, brittleness differ from each other.
- the solution according to the invention makes it possible to optimally adapt the sealing strip with respect to the material selection to the requirements with regard to abrasion resistance of the sealing surface and elasticity for the area of the front wall of the lubricating water channel.
- the solution according to the invention does not necessarily require that the entire front wall is provided by the second material portion of the second material, but it is also conceivable that the front wall is provided in sections by another material portion, for example. By the first material portion. It should also be mentioned that the sealing strip, when used in accordance with its intended purpose, is installed with its longitudinal direction oriented in the cross-machine direction of the roll into the roll.
- both the first material and the second material are elastic.
- the first material providing the sealing surface should in this case be designed so elastically that the sealing surface can conform to the inside of the roll jacket in order to provide a good sealing effect.
- On the front wall providing second material portion can act by entrained with the roll shell dirt particles can. Since the second material section in the region of the front wall-viewed in the circumferential direction of the roll shell-has a generally much smaller wall thickness than the first material section providing the sealing surface, the second material section is subject to greater mechanical stresses than the first material section.
- the second material should therefore preferably be sufficiently elastic that this can act on the front wall acting mechanical stresses - for example.
- the second material has a smaller modulus of elasticity than the first material.
- the first material at room temperature have an E-modulus of 10,000 N / mm 2 or more, Furthermore, in this context, it is conceivable that the second material at room temperature an E-modulus of 8000N / mm 2 or less, preferably 5000N / mm Has 2 or less.
- the second material is less hard and / or brittle than the first material. In this way, the risk of breaking out of the front wall providing second material section can be reduced.
- Experiments by the Applicant have further shown that, especially when the front wall providing second material portion is brought into frictional contact with the inside of the roll shell makes sense, if in a friction pairing with the material of the inside of the roll shell (in sliding friction) of the first material has the same or greater abrasion resistance than the second material. This ensures that the second material section which provides the front wall wears at least as much as the sealing surface. This avoids that the function of the sealing strip, in particular sealing surface, is affected by jamming of the second material portion on the inside of the roll shell.
- the requirement of the lowest possible coefficient of friction in the friction pairing with the material of the inside of the roll shell -in the rule steel- is provided. It is conceivable in this context in particular that the first material in the friction pairing with the material of the inside of the roll shell has a coefficient of friction of 0.15 or less. The results show that it is advantageous if the second material has a larger coefficient of friction than the first material. It is conceivable here that the second material in the friction pairing with the material of the inside of the roll mantle-as a rule steel-has a coefficient of friction of 0.18 or more.
- the first material may be one comprising, as an essential component, a plastic-graphite mixture, in particular a rubber-graphite mixture. It is conceivable, in particular, that the first material is formed by a rubber-graphite mixture. Mixtures of 45-80 wt .-% graphite and 55-20 wt .-% plastic or rubber are conceivable here, wherein at mixing ratios with more graphite than plastic on the one hand, a higher self-lubrication effect is achieved, the graphite but not be too high may, because otherwise the material is too brittle.
- the second material may be one comprising, as an essential component, a plastic, in particular polyphenylene ether (PPE).
- essential ingredient When the term “essential ingredient” is used herein, it should be understood that this ingredient constitutes the largest proportion in weight percent of the material.
- the lubricant is preferably substantially water.
- the term "essentially” refers to the possible possibility of adding lubricant additives to the water, with water always being the main constituent (based on volume%) of such a mixture
- the lip forming the front wall forming the lip, wherein the lip is connected at a junction with the base body is Preferably provided in this context in particular that the sealing strip -with exception of any supply connections for the Schmierstoffzucht- only from the The lip is also preferably more elastic, in particular flexurally elastic, than the main body.
- the base body has a rear side, which provides the rear end side of the sealing strip.
- the main body it is conceivable for the main body to have a front side with a first and a second section, wherein the first section provides a part of the lubricant channel and the second section provides the connection point at which the lip is connected to the main body.
- the front face of the sealing strip is provided by the lip.
- the front of the main body in addition to the first and second portion has a third portion which provides a part of the front end side of the sealing strip.
- a part of the front end side of the sealing strip is provided by the base body and another part of the front end side of the sealing strip by the lip. Since in sealing strips, the two end faces often serve as guide surfaces of the sealing strip in the sealing strip holder, which define the direction of movement of the sealing strip when they are attached to the inside of the roll shell, it is particularly useful if formed on the front end of the transition between the lip and the base flat is, ie, for example, no level or no paragraph forms.
- the lip can be connected to the main body. According to one possibility, it is conceivable that the lip is releasably connected to the base body, in particular non-positively and / or positively connected to the base body. Conceivable here are in particular screw or joint connections. Through a detachable connection, it is possible without much effort to replace a damaged lip with a new lip.
- a preferred embodiment of the invention therefore provides that the lip and the base body are connected to one another in a movable manner relative to one another in the longitudinal direction of the sealing strip , Specifically, this can be provided, for example, by a positive connection between the lip and the base body, for example in the form of a dovetail joint, which permits a relative movement of the lip and the base body in the longitudinal direction of the sealing strip. It should be noted at this point that the above relative mobility is not only in Connection with different thermal linear expansion of lip and body is conceivable.
- the lip arranged on the main body is inextricably linked, in particular materially bonded, to the main body.
- a connection that is particularly easy to manufacture and therefore inexpensive to produce in the production of the sealing strip is provided. It is conceivable, for example, an adhesive bond.
- the sealing strip comprises stiffening ribs against which the lip is supported during rotational movement of the roll shell. It is conceivable in this context in particular that the stiffening ribs are arranged on the lip. Alternatively or additionally, it is conceivable that the stiffening ribs are arranged on the rear wall.
- the lip is formed such that this under normal use inclined and / or curved to the radial direction of the roll shell, wherein the inclination and / or curvature is directed in the direction of movement of the roller.
- the lip is designed in such a way that, when used as intended, it extends essentially in the radial direction of the roll mantle.
- Such a lip is particularly simple and therefore inexpensive to produce.
- the sealing surface viewed in the circumferential direction of the roll shell has an extension of 15 millimeters - 70 millimeters, in particular 15 millimeters - 50 millimeters.
- the lip seen in the circumferential direction of the roll shell has a wall thickness of 0.5 millimeters - 6 millimeters.
- the lip is designed such that when properly using the sealing strip in the state by the sealing surface is employed against the inside of the roll shell, the upper edge lip against the Inside the roll shell is employed -th during rotation of the roll shell with the inside in frictional contact is or spaced at most 10 millimeters, preferably at most 4 millimeters to the inside of the roll shell.
- the lip In the salaried then acts the lip in the manner of a "sealing lip” or a “wiper blade” and seals the lubricant channel from the front, so that the lubricant either remains in the lubrication channel or is drawn into the inlet gap of the sealing surface and roll shell inside, but only slightly different can escape from the lubricant channel. Furthermore, the fact that the lip is turned on the roller shell inside only after a certain period of operation, eg. In the course of wear of the sealing surface, occur and does not necessarily have to be the case already at the beginning of the operating time of the sealing strip.
- the lubricant channel extends from the bottom inclined to the sealing surface, the inclination is directed towards the rear end of the sealing strip, in particular with a horizontal angle between 20 ° and 70 °, in particular between 30 ° and 50 °.
- the lubricant along the oblique plane formed by the rear wall can be transported particularly easily into the inlet gap between the sealing surface and the roll shell inner side. This effect is particularly pronounced when the lubricant channel is filled to or almost to the inside of the roll shell with the lubricant, and is thereby entrained by the inside of the roll shell.
- a preferred embodiment of the invention provides that the lubricant groove extends over the greater part of the length of the sealing strip.
- the sealing strip comprises a guided inside the sealing lubricant distribution with a extending in the longitudinal direction of the sealing strip Schmierstoffzu Switzerlandkanal and one or a plurality of riser (s), the one end with the lubricant groove and the other end with the lubricant supply channel is connected or are, in the case of several risers these are arranged side by side in the longitudinal direction of the lubricant channel.
- the lubricant channel can be connected to a lubricant supply line guided outside the sealing strip.
- the sealing strip according to the invention can be used in any kind of suction or blower rolls for web material processing and / or manufacturing machines, especially paper, board or tissue machines at different positions.
- the sealing strip according to the invention can be used in positions in which the lubricant channel is not "upside down” with the opening facing downwards is arranged, since in a "head over" orientation of the lubricant channel the
- a suction or blower roll with a sealing device for sealing an overpressure or underpressure zone of the suction or blower roll with at least one sealing strip according to one of claims 1 to 13, in which the sealing strip in the Suction or blow roller - considered in a plane spanned by the rotational movement of the roll mantle - is installed in a 7 o'clock to 12 o'clock position when the rotational direction of the roll mantle is clockwise and in a 5 o'clock to 12 o'clock position when the direction of rotation of the roll mantle is counterclockwise.
- FIG. 1 shows a first embodiment of a sealing strip according to the invention in one
- Figure 2 shows a second embodiment of a sealing strip according to the invention in a suction roll of a paper, board or Tissuemaschine
- Figure 3 shows a third embodiment of a sealing strip according to the invention in one
- Figure 4 shows a fourth embodiment of a sealing strip according to the invention in one
- FIG. 5 shows a lip of a sealing strip according to the invention in a perspective view and FIG. 6 shows a suction roll according to the invention.
- the generic sealing strips have a longitudinal direction, which extends under the intended use of the sealing strips in the cross-machine direction of the roller in which they are installed.
- the sealing strips 1, 1 a, 1 b, 1 c shown in Figures 1 -4 are shown in a cross-sectional plane which is perpendicular to the longitudinal direction of the sealing strips 1, 1 a, 1 b, 1 c spanned.
- the rotational direction of movement of the roll mantle also extends in the aforementioned cross-sectional plane.
- FIG. 1 shows a sealing strip 1, when used as intended, in a sealing device of a suction roll of a web material processing and / or manufacturing machine (not shown further).
- the sealing strip 1 has a front end face 14 and a rear end face 15 and an upper face 19 extending between the two end faces 14, 15 which provides a sealing surface 2 and a lubricant groove 5 formed by a cutout of the sealing strip 1.
- the lubricant channel 5 is arranged between the front end face 14 and the sealing surface 2. Furthermore, it can be seen from FIG.
- a lubricant-present in Shape of water in the inlet gap 8 between the sealing surface 2 and the inside 3 of the roll shell 4 can be brought.
- the roll shell 4 runs on the front face 14 on the sealing strip 1 and on the rear face 15 of this again, viewed in the rotational direction D of the roll shell, the lubricant groove 5 in front of the sealing surface 2 and the front wall 6 arranged in front of the rear wall 7.
- the sealing strip 1 further has a guided within the sealing strip 1 Schmierffenverteilsystem with extending in the longitudinal direction of the sealing strip 1 Schmierffenzu Switzerland 9 and a plurality of risers 10 (of which in the illustration of Figure 1 only one can be seen).
- the risers 10 are connected at one end to the lubricant channel 5 and the other end to the lubricant supply channel 9 and arranged in the longitudinal direction of the lubricant channel 5 side by side.
- the sealing strip 1 shown in FIG. 1 is formed by a first material section, which forms a base body 11, from a first material and a second material section, which forms a flexurally elastic lip 12, from a second material.
- the main body 1 1, the rear wall 7 with the sealing surface 2k.
- the first and the second material differ in the present case, at least in the physical properties modulus of elasticity, abrasion resistance and friction coefficient of each other.
- the first material essentially comprises a rubber-graphite mixture and has a graphite content of 60 wt .-% and a rubber content of 35 wt .-% and other ingredients.
- the second material comprises as essential ingredient Polyphenylenether (PPE).
- PPE Polyphenylenether
- the first material has an E-modulus of approx. 14000 N / mm 2 and the second material has an E-modulus of approx. 2400N / mm 2 . Therefore, the second material has a smaller modulus of elasticity than the first material.
- the first material and the second material are matched to one another in such a way that in a friction pairing with the material of the inner side 3 of the roll shell 4 -this steel is in the case of sliding friction a smaller coefficient of friction - namely 0.125- as the second material-namely 0.2 - Has.
- the lip 12 is designed such that when properly using the sealing strip 1 in the state by the sealing surface 2 is employed against the inside 3 of the roll shell 4, the upper edge 13 lip 12 against the inside. 3 the roller shell 4 is employed and in frictional contact with this. Furthermore, the lip 12 extends curved in the direction of movement D of the roll shell 4 viewed.
- the lip 12 is already made curved or by the lip without self-curvature due to the friction with the roll shell inner side 3 undergoes this curving force.
- the lip in the present case is made so that the upper edge 13 in the state in which the sealing surface 2 is not employed against the roll shell inner side 3 protrudes in height above the sealing surface 2.
- the lip can be releasably connected to the base body 11 at a connection point 20, for example, in a force-locking manner in the form of a screw connection.
- the base body 1 1 further forms the rear end face 15 of the sealing strip 1 from.
- the base body 1 1 has a front side which has a first portion 21, a second portion 20 and a third portion 22, wherein the first portion provides a part of the lubricant channel 5, the second portion, the joint 20 at the lip 12 with the Base body 1 1 is connected and the third portion 22 provides a portion of the front end face 14 of the sealing strip 1.
- the front end face 14 of the sealing strip 1 is provided by the lip 12 and the third section 22 of the front side of the base body 1 1.
- the transition between the lip 12 and the base body 1 1 is flat, ie, for example, no step or no shoulder forms.
- the lubricant channel 5 extends inclinedly from the bottom towards the sealing surface, wherein the inclination with a horizontal is between 20 ° and 70 °. Further, in all shown in Figures 1 -4 and 5 sealing strips 1, 1 a, 1 b, the lubricant channel 5 extends over most of the length of the respective sealing strip 1, 1 a, 1 b, 1 c.
- the sealing strip 1 a shown in FIG. 2 comprises a plurality of reinforcing ribs 16 juxtaposed in the longitudinal direction of the sealing strip against which the lip 12 a is supported during rotational movement D of the roll shell 4 by pressing the lip 12 with the reinforcing ribs 16 against the rear wall 7.
- the stiffening ribs 16 are arranged on the lip 12a.
- the lip 12a is designed such that it is used in the condition that the sealing surface 2 against the inner side 3 of the roll shell 4, when used properly the sealing strip 1 a, the upper edge 13 lip 12a to the inside 3 of the roll shell 4 is spaced, wherein the distance is present 2-4 millimeters. Further, the lip 12 extends inclined in the direction of movement D of the roll shell 4, wherein the lip 12 'is already made inclined. In the case of the sealing strip 1 a shown in FIG. 2, it can also be seen that the transition between the lip 12 a and the base body 1 1 is formed by a shoulder on the front end face 14.
- the sealing strip 1 b shown in FIG. 3 differs from that of FIG. 2 only in that the front end face 14 is completely provided by the lip 12 b ' . As a result, a flat front end side 14 is also provided.
- FIG. 4 shows a further sealing strip 1 c according to the invention in a cross-sectional plane perpendicular to its longitudinal direction.
- the lip 12c of the sealing strip 1c shown in FIG. 4 is designed such that, when used as intended, it extends substantially in the radial direction of the roll shell 4
- Figure 4 shows the sealing strip 1 c but not installed, ie without roll shell. Further, this is the same as in the sealing strip 1 shown in Figure 1 - the base body 1 1 has a rear side, which provides the rear end face 15 of the sealing strip 1 c.
- the base body 1 1 has a front side with a first portion 21, a second portion 20 and a third portion 22, wherein the first portion 21 a part of the lubricant groove 5, the second portion 20, the junction of the main body 1 1 with the lip 12 c and the third portion 22 provides a part of the front end face 14 of the sealing strip 1 c.
- the front end face 14 of the sealing strip is formed in sections by the lip 12c and partially by the base body 1 1, wherein at the front end 14 of the transition between the lip 12c and the base body 1 first even, that is without level or paragraph forms.
- the rear end face 15 of the sealing strip 1 c is formed only by the main body 1 1.
- the lip 12c is positively connected to the base body 11 at the connection point 20.
- the joint 20 forms a dovetail connection, the relative mobility of lip 12c and body 1 1 in the longitudinal direction of the sealing strip 1 c, ie when used as intended in the cross machine direction of the roller, but allows a relative mobility in other directions than the aforementioned substantially or completely prevented ..
- FIG. 5 shows the lip 12a or 12b in a perspective view with the several stiffening ribs 16 arranged side by side in the longitudinal direction of the lip 12a, 12b.
- Suction or blower roll for a web material processing and / or producing machine in particular paper, board or tissue machine
- a sealing device for sealing an overpressure or underpressure zone of the suction or blower roll
- the sealing device at least one sealing strip according to one of claims 1 -14.
- 6 shows a suction roll according to the invention 18 for a web material processing and / or manufacturing machine, in particular paper, board or Tissuemaschine, in a cross-sectional plane perpendicular to the longitudinal direction of the suction roller 18. It should be noted that the longitudinal direction of the sealing strip 1 or 1 a or 1 b or 1 c and that of the suction roll 18 coincide.
- the suction roll 18 has at least one sealing device 17 for sealing a vacuum zone V of the suction roll 18 with respect to the surroundings U.
- the sealing device 17 comprises at least one sealing strip 1, 1 a, 1 b or 1 c-present two sealing strips according to the invention.
- the two sealing strips 1, 1 a or 1 b are considered according to the invention in the suction roller 18 in the cross-sectional plane or in a plane defined by the rotational movement D of the roll shell 4 level in a 7 o'clock to 12 o'clock position in clockwise rotation and in a 5 o'clock built up to 12 o'clock position when turned counterclockwise.
- the rotation D of the roll shell takes place in a clockwise direction and the two sealing strips 1, 1 a, 1 b or 1 c are installed in a 10 o'clock position in the roller 18.
- the two sealing strips 1, 1 a, 1 b or 1 c are incorporated as intended in the roller 18, ie viewed in the rotational direction D of the roll shell 4, the lubricant channel 5 is arranged in front of the sealing surface 2 and the front wall 6 in front of the rear wall 7.
Landscapes
- Sealing With Elastic Sealing Lips (AREA)
- Paper (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013214177 | 2013-07-19 | ||
| PCT/EP2014/059591 WO2015007414A1 (de) | 2013-07-19 | 2014-05-12 | Dichtleiste für papier-, karton- oder tissuemaschine aus mehreren werkstoffen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3022356A1 true EP3022356A1 (de) | 2016-05-25 |
| EP3022356B1 EP3022356B1 (de) | 2018-10-03 |
Family
ID=50687497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP14723078.3A Active EP3022356B1 (de) | 2013-07-19 | 2014-05-12 | Saug- oder blaswalze mit einer dichtleiste |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US9708768B2 (de) |
| EP (1) | EP3022356B1 (de) |
| CN (1) | CN105392941B (de) |
| WO (1) | WO2015007414A1 (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018113831A1 (de) | 2018-06-11 | 2019-12-12 | Voith Patent Gmbh | Walze für eine Maschine zur Herstellung und/oder Verarbeitung einer Papier-, Karton- oder Tissuebahn |
| WO2019238482A1 (de) | 2018-06-11 | 2019-12-19 | Voith Patent Gmbh | Dichtleisten zum abdichten einer über- oder unterdruckzone einer walze, walze mit einer solchen dichtleisten und verfahren zum betrieb der walze |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT516191B1 (de) * | 2014-09-15 | 2016-08-15 | Röchling Leripa Papertech Gmbh & Co Kg | Dichtleistensysteme für Saugwalzen |
| US9879377B2 (en) | 2015-04-10 | 2018-01-30 | Coldwater Seals, Inc. | Adjustable foil apparatus for paper making machine |
| US9834887B2 (en) | 2015-04-10 | 2017-12-05 | Coldwater Seals, Inc. | Adjustable foil apparatus for paper making machine |
| DE102019127850A1 (de) * | 2019-10-16 | 2021-04-22 | Voith Patent Gmbh | Dichtleiste und Dichteinrichtung |
| JP7016100B2 (ja) * | 2020-02-04 | 2022-02-04 | 株式会社長谷川鉄工所 | サクションロールにおけるシール装置 |
| FI131086B1 (en) * | 2022-10-19 | 2024-09-18 | Valmet Technologies Oy | Suction roller and sealing arrangement for suction roller |
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| US4076582A (en) * | 1977-04-04 | 1978-02-28 | Diamond International Corporation | Suction roll sealing strip cleaning structure |
| US4714523A (en) * | 1986-12-18 | 1987-12-22 | Sawyer Jr William D | Suction roll seal strips with teflon insert |
| FI99035C (fi) * | 1995-11-03 | 1997-09-25 | Valmet Corp | Paperikoneen imutelan tiivisterakenne |
| US6241854B1 (en) * | 1997-05-15 | 2001-06-05 | Appleton International, Inc. | Suction roll sealing strip |
| FI107171B (fi) * | 1997-10-22 | 2001-06-15 | Metso Paper Inc | Paperikoneen/kartonkikoneen imutelan imulaatikon tiivistysrakenne |
| US6423185B1 (en) * | 1998-03-03 | 2002-07-23 | Metso Paper, Inc. | Process of surface treatment for faces that become contaminated in a paper or board machine |
| DE19842837A1 (de) * | 1998-09-18 | 2000-03-23 | Voith Sulzer Papiertech Patent | Dichtungseinrichtung und Verfahren zur Abdichtung von Druckzonen in einer Papiermaschine |
| DE19842838A1 (de) * | 1998-09-18 | 2000-03-23 | Voith Sulzer Papiertech Patent | Dichtungseinrichtung und Verfahren zur Abdichtung von Druckzonen in einer Papiermaschine |
| SE513395C2 (sv) * | 1999-01-07 | 2000-09-11 | Jocell Ab | Tätningslist |
| FI20055371A0 (fi) | 2005-07-01 | 2005-07-01 | Metso Paper Inc | Listaväline materiaalirainakonetta varten |
| DE102011004055A1 (de) | 2011-02-14 | 2012-08-16 | Voith Patent Gmbh | Dichtungseinrichtung |
-
2014
- 2014-05-12 US US14/906,014 patent/US9708768B2/en active Active
- 2014-05-12 EP EP14723078.3A patent/EP3022356B1/de active Active
- 2014-05-12 WO PCT/EP2014/059591 patent/WO2015007414A1/de not_active Ceased
- 2014-05-12 CN CN201480041003.8A patent/CN105392941B/zh active Active
Non-Patent Citations (1)
| Title |
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| See references of WO2015007414A1 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018113831A1 (de) | 2018-06-11 | 2019-12-12 | Voith Patent Gmbh | Walze für eine Maschine zur Herstellung und/oder Verarbeitung einer Papier-, Karton- oder Tissuebahn |
| WO2019238484A1 (de) | 2018-06-11 | 2019-12-19 | Voith Patent Gmbh | Walze für eine maschine zur herstellung und/oder verarbeitung einer papier-, karton- oder tissuebahn, und verfahren zum betrieb der walze |
| WO2019238482A1 (de) | 2018-06-11 | 2019-12-19 | Voith Patent Gmbh | Dichtleisten zum abdichten einer über- oder unterdruckzone einer walze, walze mit einer solchen dichtleisten und verfahren zum betrieb der walze |
| CN112262242A (zh) * | 2018-06-11 | 2021-01-22 | 福伊特专利有限公司 | 用于密封辊子的超压区或负压区的密封条,具有这种密封条的辊子和用于运行所述辊子的方法 |
| CN112262242B (zh) * | 2018-06-11 | 2023-06-02 | 福伊特专利有限公司 | 用于密封辊子的超压区或负压区的密封条,具有这种密封条的辊子和用于运行所述辊子的方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| US9708768B2 (en) | 2017-07-18 |
| EP3022356B1 (de) | 2018-10-03 |
| WO2015007414A1 (de) | 2015-01-22 |
| CN105392941A (zh) | 2016-03-09 |
| CN105392941B (zh) | 2017-08-22 |
| US20160153141A1 (en) | 2016-06-02 |
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