CN103781966A - Pressing section of a machine for producing a fibrous web - Google Patents
Pressing section of a machine for producing a fibrous web Download PDFInfo
- Publication number
- CN103781966A CN103781966A CN201280043346.9A CN201280043346A CN103781966A CN 103781966 A CN103781966 A CN 103781966A CN 201280043346 A CN201280043346 A CN 201280043346A CN 103781966 A CN103781966 A CN 103781966A
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- China
- Prior art keywords
- press
- web
- supporting member
- press section
- nips
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Classifications
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- 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
- D21F3/04—Arrangements thereof
- D21F3/045—Arrangements thereof including at least one extended press nip
-
- 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
- D21F3/0272—Wet presses in combination with suction or blowing devices
-
- 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
- D21F3/04—Arrangements thereof
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Abstract
Pressing section of a machine for producing a fibrous web (1), in particular a paper, cardboard or cellulose web, having at least one pressure nip which is formed between a press roll (10, 11) and a mating roll (12, 13), wherein the fibrous web (1) can be transferred upstream of the pressure nip, with the aid of a suction pick-up roll (14, 15), from a preceding fabric (5) to an upper press fabric (2, 3) and is guided through the pressure nip between the upper press fabric (2, 3) and a lower fabric (5, 6), wherein, downstream of the suction pick-up roll (14, 15), an upright supporting element (30) is in contact with that side of the upper press fabric (2, 3) which faces away from the web, in such a way that the result is an approximately convexly curved web running path for the fibrous web (1).
Description
Technical field
The present invention relates to a kind of press section between pressure roller and counter roller that is formed on of the machine for the manufacture of web of fiber, especially paper web, board web or cellulose web, wherein web of fiber can aspirate roller by means of discharging and transfer to press felt from net blanket before before press. nips, and press. nips is passed through in guiding between upper press felt and off line blanket.
Background technology
This press section is for example known from document EP1072721A1.In the independent squeezer described in this literary composition, at breadth after forming screen unloads, upper press felt and lower press felt immediately together with operation.The advantage of this solution is particularly preferred width guiding, because width is guided in the interlayer between press felt before press. nips.Described interlayer can blow on case and guide for affecting humidity cross section distribution form at steam.But, be applied on lower press felt but not be applied directly on web of fiber by steam, the effect that steam blows case is weakened.The other shortcoming of this solution is that the Long contact time of web of fiber and the second wet felt may cause remaining humidity rising.Residue humidity also may occur unevenly, make to form the horizontal end face distribution error of additional humidity on width.
In addition, also exist as press section known from DE102004042637, wherein web of fiber is directed to press. nips in the mode being suspended on upper press felt, and lower press felt is only directed to this press. nips in counter roller.This is necessary when being arranged in and the steam directly blowing to web of fiber should be installed blow case.Associated excessive risk is especially in the time that the weight per unit area of web of fiber is heavier, to occur that in front, press. nips width operation disturbs.
Summary of the invention
Technical problem to be solved by this invention is to create a kind of press section being particularly useful for the web of fiber of higher weight per unit area, described press section has good width operation characteristic before press. nips, but provides the Free Surface of web of fiber to for example effectively use steam to blow case simultaneously.
This technical problem solves in the following way according to the present invention, and, after discharging suction roller, the side contacts back to width of fixed-bearing component and upper press felt, makes web of fiber obtain the width operating path of approximate convex bending.The convex polygonal shape of width operating path of approximate convex that has also been interpreted as providing of supporting member approx.The contact-making surface of supporting member can be the face of continuous bend or be made up of multiple shorter contact-making surfaces, as it provides in the situation of multiple support strip of arranging transverse to width operating path.By the width operation of approximate convex bending, because the width tension force of web of fiber has produced the normal force in press felt direction, make web of fiber interference-free follow press felt, and needn't in this region, lower press felt be directed to interlayer.By solution according to the present invention, prevent that the downward of edge as often occurred from folding in the larger situation of weight per unit area.The folding of edge is extrahazardous, because may cause damage very large on roller and felt by repeatedly folding width in fully loaded press. nips in the situation of amounting to completely.Trial in technology shows, the problem that the straight width operation of 500mm to the 1000mm length after discharging suction roller can cause edge to fall down.Frequently, off line blanket guiding comes, because the Air Flow occurring causes an operating interference, especially to cause vibration and the rise at edge.By the normal force being produced by supporting member, avoid reliably this problem.
Be considered and there is at least 100g/cm with the web of fiber of heavier or higher weight per unit area
2weight per unit area, preferably 120g/cm at least
2weight per unit area, particularly preferably 150g/cm at least
2weight per unit area.
The off line blanket of press. nips can be press felt, the partly band that sees through or the conveyer belt of waterproof.Net blanket before can be for example the sieve of page forming unit, or the lower press felt of press. nips before.
Polygon mostly preferably is most 350mm along the length of the straightway of width operating path, is particularly preferably at most 250mm, to realize enough convex bending portions.
Supporting member should advantageously grow to the starting point that makes web of fiber be directed to reliably the interlayer region being formed by upper press felt and off line blanket.For example mode is that supporting member arrives until exceed starting point before the starting point of interlayer region nearby or slightly.This interlayer region can start on the deflector roll of the off line blanket in the end of supporting member, or just starts in the counter roller of press. nips.The width operating path of approximate convex bending should at least extend to the terminal of the width operating path that makes approximate convex bending and the starting point in the interlayer region that formed by upper press felt and off line blanket between distance between 20mm to 500mm, preferably be between 20mm to 250mm, be particularly preferably between 20mm to 100mm.The terminal of the width operating path of approximate convex bending is the last contact wire of supporting member and upper press felt.Certainly, the width operating path of approximate convex bending also can extend in interlayer region.Only should avoid making the distance between deflector roll and the supporting member of off line blanket too short, because otherwise the damaged or caking of web of fiber blocks and causes felt burning or other damage as may be occurred in the situation of running.Preferably, the distance between the surface of the deflector roll of off line blanket and the contact-making surface of supporting member is at least 20mm, is preferably at least 40mm.
But also preferably,, the width operating path of approximate convex bending finishes before the starting point of interlayer region, blows the position as much as possible of case to be kept for steam.
The first contact-making surface of supporting member and upper press felt should on width traffic direction, apart from press felt, the A that leaves on discharging suction roller mostly be 350mm most, mostly preferably is most 250mm.Therefore, after leaving, realized by discharging suction roller enough fast effects of normal force.
Supporting member can have the independent support strip of arranging transverse to machine direction, and described support strip contacts with press felt and therefore press felt taken on polygonal width.Supporting member also can have the coating of continuous bend, and press felt moves on described coating.Coating can have hole, groove or space, for reducing contact area and therefore reducing friction.For lubricated, can be before supporting member or in there is jet pipe or lubrication groove, with water is applied to press felt in a side of width.As the material of the coating of the contact-making surface for support strip, support strip or supporting member, specially suitable is pottery.
In a word, advantageously from discharging suction roller until the stroke between the starting point in interlayer region is short as far as possible.In favourable form of implementation, the length of the width operating path of approximate convex bending exceedes 200mm and the highest 2000mm, preferably the highest 1300mm, particularly preferably 1000mm.With this, guarantee enough the stablizing of web of fiber.
In addition the effective bending radius that, advantageously supporting member is constructed to the width operating path that is similar to convex bending is between 150mm to 10000mm, preferably between 500mm to 5000mm, and particularly preferably between 750mm to 2500mm.Can be similar to and determine effective bending radius to justify track by the multiple contact points between supporting member and press felt.Should avoid excessive deflection, i.e. too small bending radius, or " turnover " in width operating path.
For reaching for the good compromise between the minimizing of the length of the supporting of width, the face that is supported and friction and felt wearing and tearing, advantageously, for the width operating path of the approximate convex bending of every meter of length, supporting member has at least four support strip that contact with upper press felt of arranging transverse to machine traffic direction.Also advantageously supporting member has four to 15 preferably four to ten support strip that contact with upper press felt of arranging transverse to machine traffic direction.
Arrangement according to the invention is particularly suitable for for press section, and wherein the press. nips after supporting member is the second press. nips of press section, and after being especially arranged in the first press. nips that is configured to boots nip.Especially only also dewater in the second press. nips after boots nip relatively less.With this, press felt in the second press. nips more dryly operation and web of fiber adhering on upper press felt low.Therefore the edge that the air-swirl while, being guided by off line blanket the causes risk that folding or width disturbs is downwards high especially.
On the other hand, be arranged in the situation in the first front, press. nips of press section at supporting member, especially in the time that described the first press. nips is the unique press. nips of press section, also very suitable by structure of the present invention.Before the first press. nips, web of fiber only has the low aridity between 16% to 23%, and therefore still very heavy.Therefore especially in the time that weight per unit area is higher, edge tends to folding downwards.
Low as far as possible for friction is remained, and for reducing the energy consumption of press section and driver, advantageously supporting member is not neither directly also indirectly sucked and does not also apply with negative pressure.Bending width guiding and the normal force that produced are thus enough in stable at most applications mesopodium.
Alternatively, supporting member can be applied in negative pressure, for improving stablizing effect and the transhipment for improvement of web of fiber.For example directly be connected with aspirator by supporting member, or indirectly aspirated by discharging suction roller, or by realizing by being correspondingly supplied to compressed-air actuated film nozzle generation suction effect on supporting member.If supporting member is together aspirated by discharging suction roller, intermediate space must seal by corresponding side guard plate with transverse to the seal insert of width traffic direction trend.The negative pressure back to measuring in a side of width at upper press felt in the region of supporting member is between preferred 0.5kPa to 20kPa, is particularly preferably between 0.5kPa to 10kPa, and is particularly preferably between 1kPa to 5kPa.Therefore, improved stable and do not produced excessive friction and wear.
In more particularly preferred structure, upper press felt with supporting member and/or suction roller opposed side on provide the steam that steam can be blowed to web of fiber to blow case.By the very stable width guiding on upper press felt, even under dangerous boundary condition, for example, in the time that weight per unit area is very high, also can subsequently off line blanket guiding be come, this has created enough positions for installation steam blows case.In the time that weight per unit area is high, be impossible with using steam to blow case together with the press section of prior art.The heating that web of fiber blows case by steam is significant especially, because can extrude more water in press. nips, and the water that therefore should evaporate in drying section subsequently still less.
For press section according to the present invention, it is specially suitable that compact steam blows case.Steam blows the case length of case on width traffic direction should be up to 1000mm, is preferably up to 500mm, is particularly preferably up to 350mm.
When flowing out the diameter of nozzle opening that the steam of steam blows case from it between 1mm to 10mm time, realize web of fiber heating good and strengthening.
For produce enough width tension force in web of fiber, useful is is to make the speed difference between upper press felt and net blanket before can be set as 0.3% to 2% by the driver constructions of press section, preferably can be set as 0.5% to 1.5%.
Accompanying drawing explanation
Explain other favorable characteristics of the present invention according to embodiment by reference to accompanying drawing.Each figure is:
Fig. 1 shows according to the press section of the web of fiber for the manufacture of the weight per unit area with higher of prior art,
Fig. 2 shows according to the press section of the web of fiber for the manufacture of the weight per unit area with lower of prior art,
Fig. 3 shows the preferable configuration of blowing the press section of case with steam according to of the present invention,
Fig. 4 shows the detailed view of other preferable configuration,
Fig. 5 shows the other detailed view of other preferable configuration,
Fig. 6 shows the detailed view of another preferable configuration,
Fig. 7 shows the detailed view of another preferable configuration.
The specific embodiment
Be described in more detail below accompanying drawing.
Fig. 1 and Fig. 2 show the tandem squeezer according to prior art.
Fig. 1 shows the structure for heavier type.Width operating path on the first and second press. nips is configured to identical.Web of fiber 1 is received on the upper press felt 2,3 of press. nips by means of discharging suction roller 14,15.Then descend press felt 5,6 to be directly directed to press felt on this, make to be directed in the interlayer of web of fiber 1 between felt the press. nips between boots pressure roller 10,11 and counter roller 12,13.After press. nips, by means of suction felt deflector roll 17,18, web of fiber 1 is remained on lower press felt 5,6.Web of fiber 1 is always carried by press felt or guides between two press felts.Web of fiber 1 is except directly not dangling above head and guide guiding on suction roller.
Fig. 2 shows for being not easy to cause with the problem of drape edge but at the variant of lighter type important aspect the rewetting profit of press felt.At this, first lower press felt 5,6 is directed to web of fiber 1 in counter roller 12,13.For improving width temperature or being correction humidity cross section distribution form, steam blows case 40 and can directly be blown on web of fiber.
In Fig. 3, illustrate the preferable configuration according to press section of the present invention, wherein supporting member is arranged in the second front, press. nips.It should be noted as a supplement or alternatively also can in upper press felt, provide corresponding supporting member in the first front, press. nips.Behind the first press. nips being formed by boots pressure roller 10 and counter roller 12, web of fiber 1 remains on lower press felt 5 by means of suction felt deflector roll 17, and then, by means of discharging suction roller 15, web of fiber 1 is received on press felt 3.A side contacts back to width of fixed-bearing component 30 and upper press felt 3, makes web of fiber 1 obtain the width operating path of convex curved approx.The contact-making surface of supporting member 30 can be the face of continuous bend, or is made up of multiple shorter contact-making surfaces, as they provide in the situation of multiple support strip of arranging transverse to width operating path.Approximate convex is also interpreted as and has provided polygonal shape approximate convex width operating path, supporting member 30.By the width operation of approximate convex bending, because the width tension force of web of fiber 1 has produced normal force in the direction of press felt 3, make web of fiber 1 interference-free follow press felt 3, and needn't make lower squeezing net blanket 6 be directed to interlayer in this region.By solution according to the present invention, in the case of heavier weight per unit area, prevent reliably that dangerous edge is folding downwards, and however also realize the sufficiently long Free Surface of web of fiber 1, made to install the steam that can directly apply steam on web of fiber 1 and blow case 41.At bending width operating path terminal, lower squeezing net blanket 6 is directed to interlayer, and web of fiber 1 is moved to the second press. nips being formed by boots pressure roller 11 and counter roller 13 between two press felts 3 and 6.In a word, advantageously short as far as possible to the stroke of the starting point in interlayer region from discharging suction roller 15.Interlayer region also should remain short as far as possible, and its length just in time makes textural water leg and the other essential element installed.By effectively using steam to blow case 41, obviously improve the dehydration of web of fiber 1 in the second press. nips.Especially in the situation of heavier type, this is essential, to realize higher speed of production and required higher dehydrating amount for this reason.
Fig. 4 has illustrated the preferred form of implementation for supporting member in detailed view.Web of fiber 1 by means of discharging suction roller 19 from can be used as press felt or also can be used as former sieve before net blanket 7 be received on upper press felt 8.Supporting member 31 has six support strip 34, and described support strip 34 is given in advance for the width operating path of the approximate convex bending of upper press felt 8 and web of fiber 1.Supporting member 31 can not be sucked maybe and can be configured to aspirator.The first contact wire C that supporting member contacts with upper press felt follows after leaving an A nearby.In the scope of the width operating path of the approximate convex bending from C to D, the normal force producing is illustrated with arrow.
Other detailed view in Fig. 5 shows supporting member 32, and described supporting member 32 is configured to obtain from leaving an A until the short distance of the first contact wire C and from the terminal D of the width operating path of approximate convex bending until the short distance of the starting point B in interlayer region.With this, obtained width operation well stable and do not exist broken in the time of operation or lump by time damage the risk of net blanket or supporting member.Above sealing device 33, supporting member 32 is connected to and makes at least in the region of width operating path that is similar to convex bending, not carry into air with discharging suction roller 19.If the suction box of discharging suction roller 19 is correspondingly located, supporting member can be indirectly by the 19 companion suctions of discharging suction roller.
Fig. 6 illustrates other according to the detailed view of structure of the present invention, and wherein the starting point B in interlayer region is in the terminal D front of the width operating path of approximate convex bending.At this, it should be noted, the distance between the part of the contact press felt 8 of the surface of deflector roll 27 and supporting member 32 is enough large, and breakage or caking can be passed through.
Figure 7 illustrates again another according to the detailed view of structure of the present invention, wherein the starting point B in interlayer region is also in the terminal D front of the width operating path of approximate convex bending.By avoiding the support strip 34 in the direct region of deflector roll 27, realize distance between surface and the supporting member 35 of deflector roll 27 enough large, breakage or caking can be passed through.Sieve interlayer can be avoided, because do not contact press felt 8 at the rigid element of this region internal support element.
Reference list
1 web of fiber
2, press felt on 3,8
4 dry sieves
5,6,9 times squeezing net blankets
Net blanket before 7
10,11 pressure roller
12,13 counter roller
14,15,19 discharging suction rollers
16 dry internal discharging suction rollers
17,18 suction felt deflector rolls
20,21,22,23,24,25,26,27 deflector rolls
30,31,32,35 supporting members
33 sealing devices
34 support strip
Leaving a little of A discharging suction roller
The starting point in B interlayer region
The first contact wire of C and upper press felt
The terminal of the width operating path of the approximate convex bending of D
Claims (15)
1. one kind for the manufacture of web of fiber (1), especially paper web, the press section of the machine of board web or cellulose web, described press section is formed on pressure roller (10 with at least one, 11) and counter roller (12, 13) press. nips between, wherein, described web of fiber (1) can be by means of discharging suction roller (14 before described press. nips, 15, 19) from net blanket (5 before, 7) transfer to press felt (2, 3, 8), and press felt (2 on described, 3, 8) and off line blanket (5, 6, 9) between, press. nips is passed through in guiding,
It is characterized in that,
After described discharging suction roller (14,15,19), a side contacts back to width of fixed-bearing component (30,31,32) and described upper press felt (2,3,8), makes described web of fiber (1) obtain the width operating path of approximate convex bending.
2. press section according to claim 1, it is characterized in that, the width operating path of approximate convex bending at least extend to the terminal (D) of the width operating path that makes approximate convex bending and the starting point (B) in the interlayer region that formed by described upper press felt (2,3,8) and described off line blanket (5,6,9) between distance between 20mm to 500mm, preferably between 20mm to 250mm, particularly preferably between 20mm to 100mm.
3. according to the press section described in aforementioned claim one, it is characterized in that, described supporting member has the first contact wire (C) with described upper press felt (2,3,8), described the first contact wire (C) leaves point (A) 350mm at most apart from described press felt on width traffic direction on described discharging suction roller (14,15,19), preferably 250mm at most.
4. according to the press section described in aforementioned claim one, it is characterized in that, the length of the width operating path (C to D) of described approximate convex bending exceedes 200mm and maximum 2000mm, preferably maximum 1300mm, particularly preferably maximum 1000mm.
5. according to the press section described in aforementioned claim one, it is characterized in that, described supporting member (30,31,32) is configured to, make effective bending radius of width operating path of described approximate convex bending between 150mm to 10000mm, preferably between 500mm to 5000mm, and particularly preferably between 750mm to 2500mm.
6. according to the press section described in aforementioned claim one, it is characterized in that, for the width operating path of the approximate convex bending of every meter of length, described supporting member (30,31,32) has at least four support strip (34) that contact with described upper press felt (2,3,8) of arranging transverse to machine traffic direction, and/or described supporting member (30,31,32) has four to 15, preferably four to ten support strip (34) that contact with described upper press felt (2,3,8) of arranging transverse to machine traffic direction.
7. according to the press section described in aforementioned claim one, it is characterized in that, described press. nips is the second press. nips of described press section, and is especially arranged in behind the first press. nips that is configured to boots nip.
8. according to the press section described in claim 1 to 6 one, it is characterized in that, described press. nips is the first press. nips of press section, and unique press. nips of press section especially.
9. according to the press section described in aforementioned claim one, it is characterized in that, described supporting member (30,31,32) is not neither directly also sucked indirectly, and is not applied in negative pressure.
10. according to the press section described in aforementioned claim one, it is characterized in that, described supporting member (30,31,32) is applied in negative pressure, mode is that described supporting member is directly connected with aspirator, or indirectly by discharging suction roller (14,15,19) suction, or mode is upper by being correspondingly supplied to compressed-air actuated film nozzle generation suction effect at described supporting member (30,31,32).
11. press sections according to claim 10, it is characterized in that, the negative pressure back to recording in a side of width at the inherent described upper press felt in the region of described supporting member (30,31,32) (2,3,8) is between 0.5kPa to 20kPa, particularly preferably be between 0.5kPa to 10kPa, and be particularly preferably between 1kPa to 5kPa.
12. according to the press section described in aforementioned claim one, it is characterized in that, on described press felt (2,3,8) with described supporting member (30,31,32) and/or the opposed side of suction roller (14,15,19) on provide the steam that steam can be blowed to described web of fiber and blow case (41).
13. press sections according to claim 12, is characterized in that, described steam blows the case length of case (41) on width traffic direction should be up to 1000mm, is preferably up to 500mm, is particularly preferably up to 350mm.
14. according to the press section described in claim 12 or 13, it is characterized in that, steam blows the diameter of nozzle opening of the outflow steam of case (41) between 1mm to 10mm.
15. according to the press section described in aforementioned claim one, it is characterized in that, the driver constructions of described press section, for to make the speed difference between press felt (2,3,8) and net blanket before (5,7) can be set as 0.3% to 2%, preferably can be set as 0.5% to 1.5%.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011082161.9 | 2011-09-06 | ||
| DE102011082161A DE102011082161A1 (en) | 2011-09-06 | 2011-09-06 | Press section of a machine for producing a fibrous web |
| PCT/EP2012/062892 WO2013034331A1 (en) | 2011-09-06 | 2012-07-03 | Pressing section of a machine for producing a fibrous web |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103781966A true CN103781966A (en) | 2014-05-07 |
| CN103781966B CN103781966B (en) | 2016-04-20 |
Family
ID=46456595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280043346.9A Active CN103781966B (en) | 2011-09-06 | 2012-07-03 | For the manufacture of the press section of the machine of web of fiber |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2753751B1 (en) |
| CN (1) | CN103781966B (en) |
| DE (1) | DE102011082161A1 (en) |
| WO (1) | WO2013034331A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108699770A (en) * | 2016-01-29 | 2018-10-23 | 福伊特专利有限公司 | Squeezer for the machine for manufacturing fibrous cloth width |
| CN108884634A (en) * | 2016-01-29 | 2018-11-23 | 福伊特专利有限公司 | Press section |
| CN112352077A (en) * | 2018-07-04 | 2021-02-09 | 福伊特专利有限公司 | Press section |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015086294A1 (en) * | 2013-12-13 | 2015-06-18 | Voith Patent Gmbh | Method and machine for producing pulp boards |
| DE102022120745A1 (en) | 2022-08-17 | 2023-08-24 | Voith Patent Gmbh | Press section of a machine for producing a fibrous web |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1007274B (en) * | 1985-04-23 | 1990-03-21 | 美商贝洛特公司 | Extended nip press arrangement |
| DE19919085A1 (en) * | 1999-04-27 | 2000-11-02 | Voith Sulzer Papiertech Patent | Papermaking machine press section to extract water from a wet web has a separation section between the roller press gaps where the blankets and the web move on separate paths |
| DE19934875A1 (en) | 1999-07-24 | 2001-01-25 | Voith Paper Patent Gmbh | Paper machine |
| DE19939893A1 (en) * | 1999-08-23 | 2001-03-01 | Voith Paper Patent Gmbh | Web press section at a papermaking/cardboard prodn machine has a center press roller with flanking suction and shoe press rollers and a closed web path with blanket separation to the next drying station |
| DE10109382A1 (en) * | 2001-02-27 | 2002-09-05 | Voith Paper Patent Gmbh | Web press section has guide rollers for the upper and lower press blankets, and a stabilizing shoe in contact with the upper blanket, to guide the web accurately through the roller press gap without a suction roller |
| DE102004042637A1 (en) | 2004-09-03 | 2006-03-09 | Voith Paper Patent Gmbh | Cutting station for wet web of paper, tissue paper or carton has sliding blade mounted on transverse retractable rail |
| ATE514814T1 (en) * | 2007-11-19 | 2011-07-15 | Metso Paper Inc | DEVICE FOR TRANSFERRING A PAPER WEB FROM ONE SUPPORTING FABRIC TO ANOTHER |
-
2011
- 2011-09-06 DE DE102011082161A patent/DE102011082161A1/en not_active Withdrawn
-
2012
- 2012-07-03 CN CN201280043346.9A patent/CN103781966B/en active Active
- 2012-07-03 WO PCT/EP2012/062892 patent/WO2013034331A1/en active Application Filing
- 2012-07-03 EP EP12731453.2A patent/EP2753751B1/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108699770A (en) * | 2016-01-29 | 2018-10-23 | 福伊特专利有限公司 | Squeezer for the machine for manufacturing fibrous cloth width |
| CN108884634A (en) * | 2016-01-29 | 2018-11-23 | 福伊特专利有限公司 | Press section |
| CN112352077A (en) * | 2018-07-04 | 2021-02-09 | 福伊特专利有限公司 | Press section |
| CN112352077B (en) * | 2018-07-04 | 2023-06-23 | 福伊特专利有限公司 | Press section |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2753751B1 (en) | 2016-08-03 |
| WO2013034331A1 (en) | 2013-03-14 |
| DE102011082161A1 (en) | 2013-03-07 |
| CN103781966B (en) | 2016-04-20 |
| EP2753751A1 (en) | 2014-07-16 |
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