CN1478951A - Long roll gap roll sequeezer for fibre fabric dewatering - Google Patents
Long roll gap roll sequeezer for fibre fabric dewatering Download PDFInfo
- Publication number
- CN1478951A CN1478951A CNA021414483A CN02141448A CN1478951A CN 1478951 A CN1478951 A CN 1478951A CN A021414483 A CNA021414483 A CN A021414483A CN 02141448 A CN02141448 A CN 02141448A CN 1478951 A CN1478951 A CN 1478951A
- Authority
- CN
- China
- Prior art keywords
- press
- roller
- supporting plate
- roll gap
- support member
- 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
Landscapes
- Paper (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
A long-gap roller press for dewatering the fibrous fabric is disclosed. Said gap between rollers at one side is formed by a rotating cooperative roller and at another side it is formed by a long-gap roller, which has static supporter and a flexible cover able to revolve around said supporter. Said cover is supported on a slide plane of said supporter. A pallet of press can move relatively to the supporter in load direction.
Description
Technical field
The present invention relates to a kind of long nip roller press (extended-nip rollpress) that is used to make the fabric dehydration.
Background technology
Such long nip roller press is for example known by DE3503240C2, and it has the driven counter roll that is associated with the stationary support element, and this stationary support element has the press supporting plate (press shoe) that is directed within it.Can on the direction of counter roll, push this press supporting plate by means of pressure oil.Annular press outer cover is around the support component guiding.The appropriate section of the outer cover of press supporting plate and counter roll forms a long press roll gap, and fabric to be drained off passes through this roll gap with the press outer cover on the fabric movement direction.For this purpose, the press supporting plate has upper member (upper part), and this upper member has the press outer cover along its rail plate that moves.According to needed pressure distribution, rail plate by the press roll-gap width and with the outer surface of counter roll coupling.Distribute for squeeze pressure, required is to begin in press roll gap porch, squeeze pressure begins to be elevated to gradually maximum, then before leaving the press roll gap soon, squeeze pressure descends suddenly, to eliminate getting wet once more of fabric when leaving the press roll gap.For this purpose, the slidingsurface center of press supporting plate and fabric movement direction are arranged on the compressive plane next door on the contrary a little backward, distribute thereby obtain asymmetrical squeeze pressure on the fabric movement direction.Yet the dry thing content of the fabric that is obtained is also unsatisfactory.
DE3708189C2 discloses a kind of long nip roller press, and wherein, the axis of support component and counter roll is positioned at the compressive plane of preferred vertical, thereby the press supporting plate that is arranged on the support component can be parallel to the compressive plane lateral displacement.Therefore yet the motion path of roller outer cover is arranged to depart from compressive plane in contrast to the direction of motion of fabric, and with respect to the jackshaft off-centre of support component, the risk of being got wet again with further minimizing.Yet the shortcoming of this situation is that the center of roller no longer is positioned on the stacked plane, and this is to rotary part, and especially Rou Xing roller outer cover has increased stress and wearing and tearing.
Summary of the invention
Therefore, the purpose of this invention is to provide a kind of long nip roller press of described type, its simple structure, and can obtain higher dry thing content value in the fabric by it.
This purpose is to realize by the feature in the claim 1.
A kind of long nip roller press is provided, by the press supporting plate is obliquely installed with respect to stacked plane, this roll squeezer is only with a stacked plane symmetry ground structure, and before leaving the press roll gap soon, obtain the unexpected decline of squeeze pressure, therefore, prevented that greatly fabric is got wet again when leaving the press roll gap.Especially, realized that in dehydration more precipitous pressure changes, although the press supporting plate is with respect to the symmetrical location of load plane.In addition, especially because the rotating shaft of roller outer cover can overlap with the pivot of roller outer cover installed part on the both sides, so the reduction of the stress on the roller outer cover, and its wearing and tearing also are minimized.
The press supporting plate can tilt with respect to support member, and perhaps the press supporting plate can tilt with support member, and support member can be around the roller center rotation of press roller for this purpose.
The required rising that acute angle between stacked plane and the load plane can change based on press roll gap internal pressure and selecting on demand, and be preferably located in 1 ° to 5 ° the scope.
In addition, compare with the jackshaft of press supporting plate, the upper member of press supporting plate is can be than longer on Way out on the Way in, to obtain preferred pressure curve in the press roll gap.
According to claim 6 and/or 7, the press supporting plate can be equipped with hydraulic stroker (hydraulicloading cylinder), it can realize the hinged compensation (articulated compensation) of press supporting plate with respect to the motion of support member, especially for compensate for heat expansion.
Further improvement of the present invention can obtain from dependent claims and following description.
Description of drawings
To utilize exemplary embodiment shown in the drawings to describe the present invention in detail.
Fig. 1 illustrates cooperation roller and the long roll gap pressure roller that belongs to according to the long nip roller press of first exemplary embodiment with schematic cross section;
Fig. 2 illustrates cooperation roller and the long roll gap pressure roller that belongs to according to the long nip roller press of second exemplary embodiment with schematic cross section; And
Fig. 3 illustrates cooperation roller and the long roll gap pressure roller that belongs to according to the long nip roller press of the 3rd exemplary embodiment with schematic cross section.
The specific embodiment
Fig. 1 shows and is used to make fabric (filerous web), the long nip roller press of paper fabric dehydration especially, and it can be the part of paper machine.
Long nip roller press comprises long roll gap pressure roller 1 and from roller 2 movingly, they interact in press roll gap 3.Long roll gap pressure roller 1 and cooperation roller 2 define a stacked planar S with their roller center, and at this, stacked planar S is vertically extended.Alternatively, long roll gap pressure roller 1 and cooperation roller 2 also can mode angled or that flatly extend be arranged with stacked planar S.At least one felt fabric that will be extruded 4 and fabric 5 are directed and by press roll gap 3.
Long roll gap pressure roller 1 comprises static support member 6 and can rotate and by flexible material around support member 6, for example the roller outer cover 7 that constitutes of rubber or plastics.Roller outer cover 7 is a tubulose, and is fixed on the outer cover (not shown) in its end, and the latter is positioned to and can rotates on support member 6, so that form the long roll gap pressure roller 1 of sealing.Space 8 between support member 6 and roller outer cover 7 can be supplied with compressed air, and roller outer cover 7 can expand thus, so that obtain cylinder form.Because the transportation of roller outer cover, it is necessary that this cylindrical outer shape is started working for long roll gap pressure roller 1.In the course of the work, cylindrical outer shape has prevented the vibration of roller outer cover.The center of rotation of the roller outer cover installed part on the turning cylinder of roller outer cover in this case and the both sides overlaps.
Being arranged on the support member 6 is press supporting plate (press shoe) 10, and it has the upper member 11 that forms slidingsurface 9 on it, is supported in the zone of press roll gap 3 at slidingsurface upper roller outer cover 7.Slidingsurface 9 preferably protrudes in edge on cross section, and is mainly depression in supporting zone.Press supporting plate 10 can pass through pressure oil and pressurized on the direction that cooperates roller 2.Press supporting plate 10 forms long press roll gap 3 with the appropriate section of the outer cover that cooperates roller 2, and felt fabric 4 that be dehydrated and at least one in the fabric together are guided with roller outer cover 7 on the fabric movement direction by this roll gap 3.In the case, non-driven roller outer cover 7 is driven by fabric 4,5, and slidingsurface 9 defines entrance and exit.Way out is represented by the arrow in roller 2 movingly in Fig. 1.Press roll gap 3 is lubricated with known manner hydrodynamic (hydrodynamically) and/or quiet liquid (hydrostatically).
Press supporting plate 10 comprises support bar, and the upper member 11 that has slidingsurface 9 is fixed thereon.Support bar comprises a plurality of supporting constructions 12, they arrange the distance that separates each other, comprise the piston-like parts, and under any circumstance be supported on the support member 6.Owing to be applied to pressure on the pressure chamber 13, supporting construction 12 can move on the direction that cooperates roller 2, and this pressure chamber is connected on the hydraulic means of oil for example or water.The pressure medium circuit connects with known manner.
So press supporting plate 10 defines a load plane L, this plane is formed by the geometric center lines of supporting construction 12.Press supporting plate 10 is that the load plane L of press supporting plate 10 is crossing with stacked planar S in the center that cooperates roller 2 with respect to the layout of stacked planar S, and acutangulate with Way out, and press supporting plate 10 can be along this load plane L radial displacement of arranging with respect to stacked planar S by this way.The layout of press supporting plate 10 can form in such a way, makes load plane L with respect to an angle in the scope of 1 ° to 5 ° of stacked planar S rotation.
For press supporting plate 10 is arranged with respect to stacked planar S, according to Fig. 1, press supporting plate 10 is arranged to tilt at support member 6.Upper member 11 preferably forms as follows, that is, L compares with load plane, and described upper member is long on the Way in than on Way out.
Supporting construction 12 is formed the hydraulic load cylinder can for example be realized as described in the DE-B2759035.Because thermal expansion difference between support bar and the support member 6, and because the deflection of support member 6 produces length difference, preferably utilize fixing tubular piston parts 14, this tubular piston part 14 is guided in sealing and the hinged depression of mode in top connector 15 and support connecting piece 16 at its two ends, and it forms the hydraulic cylinder part in all cases.Tubular piston part 14 allows upper member 11 to tilt with respect to support member 6.
Second exemplary embodiment shown in Figure 2 is different from exemplary embodiment shown in Figure 1, its difference is that support member 6 tilts with press supporting plate 10, therefore press supporting plate 10 can acutangulate along load plane L radial displacement and with Way out, and wherein load plane L intersects in center that cooperates roller 2 and stacked planar S.For this purpose, support member 10 preferably centers on the center rotation of long roll gap pressure roller in the framework (not shown).Then, press supporting plate 10 is arranged on the support member 6, is parallel to the latter and arranges.Other aspects suitably adopt the above-mentioned explanation relevant with Fig. 1.
Fig. 3 illustrates the 3rd exemplary embodiment, and this embodiment is different with exemplary embodiment shown in Figure 1, and its difference is that long roll gap pressure roller 1 is arranged in the top side that cooperates roller 2, and this causes press supporting plate 10 to be positioned at the top.Other aspects suitably adopt the explanation relevant with Fig. 1.In addition, Fig. 3 illustrates for the hydrodynamic of press roll gap 3 lubricated, is provided with fluid feedway 17 in the porch of press roll gap 3.By means of scraper plate 18, being applied to lubricant on roller outer cover 7 inboards, can be scraped the press roller once more be 3 downstream.Scraper plate 18 preferably is arranged in the upper area of long roll gap pressure roller 1, flow in the collection container 19 with the lubricant that utilizes gravity to make to wipe off, and lubricant can emit via at least one pipeline 20 from collection container.
Mentioned all publications and patent application all are herein incorporated the in addition reference of same degree ground in this specification, just as each independent publication or patent application by concrete and be designated as individually be herein incorporated as with reference to.
Described the present invention now fully, it will be understood by those skilled in the art that under marrow that does not deviate from appended claims or scope and can make multiple variation and modification it.
Claims (7)
1. one kind is used to long nip roller press that fabric is dewatered in the press roll gap, this press roll gap is formed by the cooperation roller that rotates in a side, and form by long roll gap pressure roller at opposite side, the roller of these rollers is centered close in the stacked plane, and long roll gap pressure roller has static support member and can center on the roller outer cover of the flexibility of support member rotation, this outer cover in the press roll-gap region is supported on the support member on slip plane, this slip plane is formed on the upper member that defines entrance and exit of press supporting plate, this press supporting plate can be with respect to support member at the load direction top offset, wherein, the press supporting plate can be along load plane radial displacement and in an acute angle with Way out, and this load plane is in the center and the stacked Plane intersects that cooperate roller.
2. long nip roller press as claimed in claim 1, wherein, the press supporting plate is arranged to tilt on support member.
3. long nip roller press as claimed in claim 2, wherein, support member is arranged to tilt with the press supporting plate.
4. as each described long nip roller press in the claim 1 to 3, wherein, load plane is with respect to the acute angle in 1 ° to 5 ° scope of stacked plane rotation.
5. long nip roller press according to any one of claims 1 to 4 wherein, is compared with the axis of press supporting plate, and the upper member of press supporting plate is longer on the Way in than on Way out.
6. as each described long nip roller press in the claim 1 to 5, wherein, the press supporting plate comprises a plurality of hinged hydraulic loaded cylinders, they separate each other one in the horizontal apart from arranging, each hydraulic loaded cylinder under any circumstance comprises tubular cylinder shape piston element, this element on its end in a side joins hydraulic cylinder part on the upper member in hinged way to, and on opposite side joins hydraulic cylinder part on the support member in hinged way to.
7. as each described long nip roller press in the claim 1 to 6, wherein, long roll gap pressure roller and cooperate roller in the vertically stacked plane, to arrange, and long roll gap pressure roller is configured on the cooperation roller, and the press supporting plate is positioned at the top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021414483A CN100348799C (en) | 2002-08-30 | 2002-08-30 | Long roll gap roll sequeezer for fibre fabric dewatering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021414483A CN100348799C (en) | 2002-08-30 | 2002-08-30 | Long roll gap roll sequeezer for fibre fabric dewatering |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1478951A true CN1478951A (en) | 2004-03-03 |
| CN100348799C CN100348799C (en) | 2007-11-14 |
Family
ID=34147783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021414483A Expired - Fee Related CN100348799C (en) | 2002-08-30 | 2002-08-30 | Long roll gap roll sequeezer for fibre fabric dewatering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100348799C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102159766B (en) * | 2008-09-15 | 2013-03-27 | 沃依特专利有限责任公司 | Press-on unit for a paper, cardboard, or tissue machine |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3503240A1 (en) * | 1985-01-31 | 1986-08-07 | J.M. Voith Gmbh, 7920 Heidenheim | WET PRESS FOR DRAINING A FIBER TRAIN |
| DE3708189A1 (en) * | 1987-03-13 | 1988-09-22 | Voith Gmbh J M | LONG NIP ROLLING PRESS |
| DE19520443C2 (en) * | 1995-06-03 | 2000-05-31 | Voith Sulzer Papiermasch Gmbh | Roller press |
| DE19622018A1 (en) * | 1996-05-31 | 1997-12-04 | Voith Sulzer Papiermasch Gmbh | Shoe press |
| DE19631638A1 (en) * | 1996-08-05 | 1998-02-12 | Voith Sulzer Papiermasch Gmbh | Press arrangement |
| DE19714939A1 (en) * | 1997-04-10 | 1998-10-15 | Voith Sulzer Papiermasch Gmbh | Shoe press unit |
-
2002
- 2002-08-30 CN CNB021414483A patent/CN100348799C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102159766B (en) * | 2008-09-15 | 2013-03-27 | 沃依特专利有限责任公司 | Press-on unit for a paper, cardboard, or tissue machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100348799C (en) | 2007-11-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3853698A (en) | Large roll hydraulic press with pressurized fluid supports | |
| US4793250A (en) | Method and apparatus for controlling deflection of an adjustable crown roll | |
| CA1318806C (en) | Press with extended nip | |
| EP0619399A1 (en) | Method for opening a nip in an extended-nip press and equipment for opening a nip in an extended-nip press | |
| CA2147730A1 (en) | Roll for a papermaking machine | |
| FI117486B (en) | Roller for a paper machine or paper finishing machine | |
| FI87484C (en) | Support arrangement for bend-compensated drum | |
| CN100348799C (en) | Long roll gap roll sequeezer for fibre fabric dewatering | |
| EP1127187A1 (en) | A press for the dewatering of a fibre web | |
| FI77489B (en) | PRESSVALS FOER BEHANDLING AV I SYNNERHET EN PAPPERSBANA ELLER MOTSVARANDE. | |
| FI95941B (en) | Self-loading deflection roller | |
| US5693186A (en) | Method and apparatus for interconnecting rolls in an extended-nip press | |
| CN101565914A (en) | Roller press | |
| US4536255A (en) | Extended nip press | |
| US20030024405A1 (en) | Extended-nip roll press for dewatering a fibrous web | |
| US5744006A (en) | Apparatus for dewatering mixtures of fibrous and liquid materials | |
| US7162953B2 (en) | Roll arrangement | |
| WO1998042992A1 (en) | Roll | |
| CN101463864B (en) | Roll | |
| CA2294389C (en) | Device for dewatering solid/liquid suspensions, especially pulp suspensions | |
| WO2001044570A1 (en) | Pair of rolls for forming an extended press nip | |
| FI80772C (en) | Procedure in a bend controlled roller and a bend controlled roller | |
| CN116324086A (en) | Shoe press for paper and related method | |
| JPH1025687A (en) | Roller press | |
| FI73051C (en) | Zone adjustable bending compensated drum. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |