CN101842534A - Method for compensating for faults in a paper web - Google Patents
Method for compensating for faults in a paper web Download PDFInfo
- Publication number
- CN101842534A CN101842534A CN200880107461A CN200880107461A CN101842534A CN 101842534 A CN101842534 A CN 101842534A CN 200880107461 A CN200880107461 A CN 200880107461A CN 200880107461 A CN200880107461 A CN 200880107461A CN 101842534 A CN101842534 A CN 101842534A
- Authority
- CN
- China
- Prior art keywords
- paper web
- web
- paper
- machine
- peel angle
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000001035 drying Methods 0.000 claims abstract description 6
- 230000008602 contraction Effects 0.000 claims description 11
- 230000002950 deficient Effects 0.000 claims description 7
- 210000000481 breast Anatomy 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000002269 spontaneous effect Effects 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 claims 1
- 230000008901 benefit Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 2
- 208000031872 Body Remains Diseases 0.000 description 1
- 241001676635 Lepidorhombus whiffiagonis Species 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F2/00—Transferring continuous webs from wet ends to press sections
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G9/00—Other accessories for paper-making machines
- D21G9/0063—Devices for threading a web tail through a paper-making machine
-
- 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
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F5/00—Dryer section of machines for making continuous webs of paper
Landscapes
- Paper (AREA)
Abstract
Method for compensating for uneven shrinkage in a paper web in the press and drying sections of a paper machine, in which there is at least one open draw. In the method, a flow guide/guides are used in the head box, by means of which the machine direction orientation tendency of the fibres is reduced in the edge areas of the web and the angle of detaching of the web from the centre roll is adjusted, by directing onto the web an air jet that is located in the cross direction and the pressure of which can be adjusted in the said direction.
Description
Technical field
The present invention relates to a kind of method that is used to compensate the paper web defective, such as uneven contraction.Particularly, at the pressurization drying nest of paper machine, bigger contraction can take place than its middle section in the fringe region of paper web, and theme of the present invention relates to the compensation of this contraction.
Background technology
Be known that paper web on the paper machine is uneven along the contraction of its product width, under this situation, the contraction of marginal portion is approximately 7%, and the contraction of opposite paper web middle body remains on about 2% or 3%.This can be with reference to describing the typical figure that shrinks profile in the accompanying drawing.
Obviously, in said circumstances, very likely be to produce product and other the harmful mass defect that can not sell, unless can reduce the difference of contraction by some modes.
The problem in web edge zone includes but not limited to, the change of the percentage of the increase of edge porosity, the increase of edge roughness, wrinkle, inorganic filler components and worse DIMENSIONAL STABILITY.Which problem specifically occurs and depend on the type of pressurization drying nest of the paper machine of being discussed and the rank of paper usually.
Obviously, mode also might produce with corresponding other defective of contraction, and the compensation of these defectives is automatically belonged to research range of the present invention similarly.
Summary of the invention
The invention is intended to improve the negative effect of shrinking profile variation.The present invention is so that very reasonably price and simple mode realize described improvement.
Aforementioned advantages of the present invention and other advantage and benefit will realize in the mode of describing in the appended claims.
Briefly, basic thought of the present invention is, and though described defective be spontaneous or since the result of certain operations reach minimized mode by the difference between the characteristic and all can influence described defective.Therefore, to greatly be the variation of nature in the shrinkage ratio of edge in the contraction of centre such as paper web, this also promotes the improvement of quality of the paper roll of edge when attempting to minimize.
Description of drawings
Below, with reference to following accompanying drawing the present invention is described in more detail, wherein:
Fig. 1 represents to use an embodiment according to movement-oriented device of the present invention (flow guide), and described movement-oriented device is positioned at the discharge nozzle of the flow box of paper machine along the slurry flow direction; With
Fig. 2 represents the of the present invention second time zone relevant with the breast roll of pressures partially.
The specific embodiment
In the discharge nozzle of the flow box of paper machine, see that along the direction that slurry flows used movement-oriented device, this guider intention influences the characteristic of paper by influencing air-jet eddy-current.Movement-oriented device has great influence along the length of slurry moving direction for the characteristic of paper.This is because because the eddy current that movement-oriented device produces makes the great change of the directed generation of processing of fiber.Common rule is that the processing orientation of fiber is along with the length of movement-oriented device increases and reduces.In the present invention, longer in centre by the length that makes movement-oriented device at edge's ratio, and foregoing characteristic is not fully exerted.An example is exactly shown in Figure 1, and this example only is for example rather than restrictive.In the drawings, movement-oriented device 1 roughly is a plate-like piece.In this embodiment, the edge 2 of guider obviously is elongated.
Because the variation on the machine direction magnitude of the fringe region intrinsic fiber orientation of paper web also is the unfavorable factor that influences machine operation, also can use other device to realize required effect according to the present invention.
The angle of peeling off paper web from the breast roll of pressures partially a device (it utilizes the open type from a roller to another roller to shift) changes according to the pulling force and the magnitude of the fiber alignment of machine direction.If changed the size of the fiber alignment of machine direction in the manner described above, so the orientation at the web edge place will be lacked, this means that the angle of peeling off from the breast roll of pressures partially can change, so paper web keeps being attached on the roller than more tending at middle body at the edge of roller.Such result is exactly, and compares with middle section, and fringe region becomes by permanent elongation, and this following process operation for drier section is extremely harmful.
Therefore, will help obtaining a kind of device, and, help to offset because the peel angle problem that shape caused of movement-oriented device assisting down of this device.This solves according to following mode of the present invention.Referring now to Fig. 2.
By using adjustable gaseous blast, the paper web 4 that extends around the breast roll 3 of pressures partially is regulated in a controlled manner from the angle that roller breaks away from the width of paper web.In fact, this means, perhaps calculate, determine the pressure distribution that paper web is crisscross, might realize that thus consistent peel angle distributes by test or by theoretical.
A kind of device might produce and utilize aforementioned distribution by it, is by device Runtech SystemsOy development and that sell as trade mark with Air Curtain.By described device, this device is shown in the sequence number 5 in Fig. 2, might be created in the gaseous blast that extends on the whole width of paper web, and the pressure distribution of paper web can change along its whole width.The gaseous blast that is produced is schematically by sequence number 6 expressions.The pressure influence paper peel angle of gaseous blast distributes so pass through to change the intersection tonnage, can influence described peel angle by this way, thereby compensation is by the variation of the peel angle of the length profile generation of movement-oriented device in the flow box.By this device, the eddy current that the length profile of movement-oriented device produces in according to flow box when keeping the minimized positive effect of the change of paper property, can be controlled the opposite effects to the runnability of drying machine part.
Another embodiment of said system measures peel angle by the use proper device, and the information that described device uses can directly be used for regulating the operation of gaseous blast device 5, so will obtain required peel angle.In fact, be exactly the device that peel angle is measured in suitable being used to such as laser camera.
Said method is not unique example of using the principle of the invention.Jet assisting down, more or less in real time, might correct the inhomogeneities of the paper web that causes by other reason.Therefore might quick adjustment whiff pressure and peel angle on any point of web width.The result improves the quality of paper.
In the protection domain that keeps inventive concept and respective right to require, various variations all are possible.
Claims (5)
1. the defective of a pressurization drying nest paper web that is used for compensating paper machine wherein has at least one open draw such as the method for inhomogeneous contraction, it is characterized in that
-this paper web is transported to the pressurization drying nest of paper machine, this paper web have spontaneous characteristic or because the characteristic that the different peel angles peeled off from the breast roll of pressures partially on whole width cause and
The peel angle of-this paper web (4) is by locating to guide jet the adjusting at paper web (6), and the described jet crisscross and jet pressure that is positioned at paper web can be regulated along described direction.
2. the method for claim 1, it is characterized in that,, use one or more movement-oriented devices for the trend of the big contraction that compensates the web edge zone, movement-oriented device in the length in web edge zone greater than its length, to reduce the machine direction orientation of fiber at middle section.
3. the method for claim 1, it is characterized in that, act on regulating by this way on the paper web (4) that the breast roll (3) from pressures partially breaks away from along the crisscross described jet pressure of paper web, promptly this pressure in the web edge zone than big at the paper web middle section.
4. as the described method of above-mentioned any claim, it is characterized in that the peel angle that paper web is peeled off from roller is monitored in real time, the result of monitoring directly also is used to correct pressure distribution immediately, equates with the peel angle that makes paper web on the width of paper web.
5. method as claimed in claim 4 is characterized in that, uses suitable measurement mechanism to monitor such as one or more laser cameras.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20070626A FI119441B (en) | 2007-08-20 | 2007-08-20 | Method for compensating deformation of a paper web |
| FI20070626 | 2007-08-20 | ||
| PCT/FI2008/050467 WO2009024649A1 (en) | 2007-08-20 | 2008-08-18 | Method for compensating for faults in a paper web |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101842534A true CN101842534A (en) | 2010-09-22 |
Family
ID=38468695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200880107461A Pending CN101842534A (en) | 2007-08-20 | 2008-08-18 | Method for compensating for faults in a paper web |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US20110214829A1 (en) |
| EP (1) | EP2188445A4 (en) |
| JP (1) | JP2010537065A (en) |
| KR (1) | KR20100061691A (en) |
| CN (1) | CN101842534A (en) |
| BR (1) | BRPI0815625A2 (en) |
| CA (1) | CA2697054A1 (en) |
| FI (1) | FI119441B (en) |
| WO (1) | WO2009024649A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110418593A (en) * | 2017-10-20 | 2019-11-05 | 科亚列士信荣株式会社 | Semi-finished product roll up manufacturing device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI119441B (en) * | 2007-08-20 | 2008-11-14 | Runtech Systems Oy | Method for compensating deformation of a paper web |
Family Cites Families (39)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3070901A (en) * | 1956-02-01 | 1963-01-01 | Svenska Flaektfabriken Ab | Guiding air-borne webs |
| GB993603A (en) * | 1962-11-15 | 1965-06-02 | Billeruds Ab | Method of producing extensible paper |
| US3399111A (en) * | 1966-12-01 | 1968-08-27 | Huyck Corp | Supplemental belt in combination with an endless belt in papermaking and method of installing the supplemental belt |
| US3856619A (en) * | 1973-03-07 | 1974-12-24 | Beloit Corp | Papermaking machine headbox with slice chamber containing flexible trailing elements having extended edges |
| JPS5924509A (en) * | 1982-07-30 | 1984-02-08 | Hitachi Ltd | Method and device for correcting asymmetry of material to be rolled in rolling mill |
| US4918836A (en) * | 1987-02-13 | 1990-04-24 | Beloit Corporation | Tail cutter apparatus and method |
| FI80090C (en) * | 1987-12-23 | 1990-04-10 | Ahlstroem Valmet | Method and apparatus in the inlet box of a paper machine for stable insulation of its lip beam |
| US5014447A (en) * | 1988-02-10 | 1991-05-14 | Thermo Electron Web Systems, Inc. | Positive pressure web floater dryer with parallel flow |
| US5232555A (en) * | 1988-09-29 | 1993-08-03 | Pulp And Paper Research Institute Of Canada | Wet cellulosic web transfer method using air doctor blade |
| US5022166A (en) * | 1990-06-07 | 1991-06-11 | Union Camp Corporation | Flutter suppression air foils |
| US5730923A (en) * | 1992-09-28 | 1998-03-24 | The University Of Tennessee Research Corporation | Post-treatment of non-woven webs |
| FI108054B (en) * | 1994-05-31 | 2001-11-15 | Metso Paper Inc | Method for stabilizing the course of a paper web in conjunction with a paper guide roll especially between the press portion and the drying portion and apparatus for carrying out the method |
| DE19542448A1 (en) * | 1995-11-14 | 1997-05-15 | Voith Sulzer Papiermasch Gmbh | Method and device for determining the effect of adjusting actuators |
| US5830321A (en) * | 1997-01-29 | 1998-11-03 | Kimberly-Clark Worldwide, Inc. | Method for improved rush transfer to produce high bulk without macrofolds |
| FI111469B (en) * | 1996-12-16 | 2003-07-31 | Metso Paper Inc | Method and system for observing the unloading phase of the web |
| CA2206382C (en) * | 1997-05-28 | 2000-08-22 | Asea Brown Boveri Inc. | Curl and profile correction with high velocity hoods |
| FI108063B (en) * | 1997-09-09 | 2001-11-15 | Runtech Systems Oy | Method and apparatus for treating a web of material |
| US6004432A (en) * | 1998-01-28 | 1999-12-21 | Beloit Technologies, Inc. | Sheet turn with vectored air supply |
| US6207020B1 (en) * | 1998-05-12 | 2001-03-27 | International Paper Company | Method for conditioning paper and paperboard webs |
| DE19841639A1 (en) * | 1998-09-11 | 2000-03-16 | Voith Sulzer Papiertech Patent | Web guide |
| FI113883B (en) * | 1999-08-12 | 2004-06-30 | Runtech Systems Oy | Methods and devices for processing a web of material and for controlling the behavior of the web of material |
| DE10004369A1 (en) * | 2000-02-02 | 2001-08-09 | Voith Paper Patent Gmbh | Transfer of an entry strip of a paper web |
| DE10106684A1 (en) * | 2001-02-14 | 2002-08-29 | Voith Paper Patent Gmbh | Slat of a headbox of a paper, cardboard or tissue machine |
| FI121240B (en) * | 2001-03-23 | 2010-08-31 | Metso Paper Automation Oy | Arrangements at a paper machine as well as a blow box |
| DE10115618A1 (en) * | 2001-03-26 | 2002-10-02 | Voith Paper Patent Gmbh | Method and device for transferring a web |
| US20030183353A1 (en) * | 2001-12-10 | 2003-10-02 | Metso Paper Karlstad Ab | Press section tail threading |
| FI20025055A0 (en) * | 2002-03-27 | 2002-12-03 | Metso Paper Inc | Method for controlling a paper or board machine |
| CN1659334A (en) * | 2002-04-22 | 2005-08-24 | 斯托拉恩索公司 | Device and method for on-line control of the fibre direction of a fibre web |
| FI116389B (en) * | 2002-07-16 | 2005-11-15 | Millidyne Oy | Procedure for adjusting surface properties |
| DE10242868A1 (en) * | 2002-09-17 | 2004-03-25 | Voith Paper Patent Gmbh | Papermaking machine headbox has sandwich construction guide vane incorporating sliding tab moving back and forth by compression spring and steel cable attached to spindle |
| US6698681B1 (en) * | 2002-10-04 | 2004-03-02 | Kimberly-Clark Worldwide, Inc. | Apparatus and method for winding paper |
| DE20309429U1 (en) * | 2003-06-17 | 2003-09-18 | Reifenhaeuser Masch | Extraction device of a tubular film extrusion system |
| US7513975B2 (en) * | 2003-06-25 | 2009-04-07 | Honeywell International Inc. | Cross-direction actuator and control system with adaptive footprint |
| US20060027620A1 (en) * | 2004-08-05 | 2006-02-09 | Voith Paper Patent Gmbh | Method and apparatus for transferring a paper web |
| US7311234B2 (en) * | 2005-06-06 | 2007-12-25 | The Procter & Gamble Company | Vectored air web handling apparatus |
| FI20060757L (en) * | 2006-08-25 | 2008-02-26 | Runtech Systems Oy | Method and device for guiding a paper web or the like |
| FI119441B (en) * | 2007-08-20 | 2008-11-14 | Runtech Systems Oy | Method for compensating deformation of a paper web |
| EP2240638B1 (en) * | 2007-12-31 | 2011-05-25 | Metso Paper, Inc. | Arrangement and method for saving energy in a drying section of a paper machine or the like |
| DE102009022871A1 (en) * | 2009-05-27 | 2010-12-02 | Metso Paper, Inc. | Method for wireless feeding of web into single-wire extension of dryer section of e.g. paper machine, involves guiding insertion web from preceding drying cylinder to next drying cylinder, and detaching insertion web from preceding cylinder |
-
2007
- 2007-08-20 FI FI20070626A patent/FI119441B/en not_active IP Right Cessation
-
2008
- 2008-08-18 CA CA2697054A patent/CA2697054A1/en not_active Abandoned
- 2008-08-18 WO PCT/FI2008/050467 patent/WO2009024649A1/en active Application Filing
- 2008-08-18 KR KR1020107005942A patent/KR20100061691A/en not_active Application Discontinuation
- 2008-08-18 CN CN200880107461A patent/CN101842534A/en active Pending
- 2008-08-18 JP JP2010521453A patent/JP2010537065A/en active Pending
- 2008-08-18 EP EP08787740.3A patent/EP2188445A4/en not_active Withdrawn
- 2008-08-18 US US12/674,185 patent/US20110214829A1/en not_active Abandoned
- 2008-08-18 BR BRPI0815625-5A2A patent/BRPI0815625A2/en not_active IP Right Cessation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110418593A (en) * | 2017-10-20 | 2019-11-05 | 科亚列士信荣株式会社 | Semi-finished product roll up manufacturing device |
| CN110418593B (en) * | 2017-10-20 | 2022-04-19 | 科亚列士信荣株式会社 | Semi-finished roll manufacturing device |
| US11390483B2 (en) | 2017-10-20 | 2022-07-19 | Corelex Shin-Ei Co., Ltd. | Log roll manufacturing apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20100061691A (en) | 2010-06-08 |
| EP2188445A1 (en) | 2010-05-26 |
| CA2697054A1 (en) | 2009-02-26 |
| JP2010537065A (en) | 2010-12-02 |
| FI20070626A0 (en) | 2007-08-20 |
| WO2009024649A1 (en) | 2009-02-26 |
| FI119441B (en) | 2008-11-14 |
| BRPI0815625A2 (en) | 2015-02-18 |
| EP2188445A4 (en) | 2014-01-08 |
| US20110214829A1 (en) | 2011-09-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100922 |