EP2367976A1 - Machine for producing and/or treating a fiber web - Google Patents
Machine for producing and/or treating a fiber webInfo
- Publication number
- EP2367976A1 EP2367976A1 EP09740112A EP09740112A EP2367976A1 EP 2367976 A1 EP2367976 A1 EP 2367976A1 EP 09740112 A EP09740112 A EP 09740112A EP 09740112 A EP09740112 A EP 09740112A EP 2367976 A1 EP2367976 A1 EP 2367976A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- transfer belt
- press
- press nip
- machine according
- last
- 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
- 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
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/32—Washing wire-cloths or felts
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F3/00—Press section of machines for making continuous webs of paper
- D21F3/02—Wet presses
- D21F3/0209—Wet presses with extended press nip
- D21F3/0218—Shoe presses
- D21F3/0227—Belts or sleeves therefor
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F7/00—Other details of machines for making continuous webs of paper
- D21F7/08—Felts
- D21F7/083—Multi-layer felts
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F7/00—Other details of machines for making continuous webs of paper
- D21F7/08—Felts
- D21F7/12—Drying
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G3/00—Doctors
- D21G3/005—Doctor knifes
-
- 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
Definitions
- the invention relates to a machine for producing and / or treating a fibrous web, in particular paper or board web according to the preamble of claim 1.
- the invention further relates to a machine for producing and / or treating a fibrous web with a press containing a transfer belt and with a device for conditioning the transfer belt according to the preamble of claim 27.
- the paper must have a high nip strength for the coating application and subsequently during printing, since high normal forces act on the paper surface.
- the object is achieved by a machine for producing and / or treating a fibrous web, in particular a paper or board web, with a press section and a downstream of the press section in the web running direction drying section, the press section has a last formed by an upper and a lower press roll press nip, through which the fibrous web is guided between an upper and a lower clothing of the last press nip, as well as a penultimate press nip immediately preceding the last press nip in the web running direction, through which the fibrous web between an upper and a lower drainage belt, in particular press felt, the penultimate press nip is performed, the fibrous web is passed from the last press nip to a pickup point on the lower clothing of the last press nips and passed at the take-off point of the lower clothing on a dryer wire a first dryer group of the dryer section d, wherein the fibrous web prior to entry into the last press nip has a dry content of at least 38%, preferably at least
- the transfer belt in the sense of the invention, in contrast to a dewatering belt, no dehydration should take place.
- the transfer belt is therefore substantially impermeable, i. it has a permeability of less than 5-10 cm, or is quite impermeable to air and water, i. it has a permeability equal to Ocfm.
- the invention provides in combination that the lower clothing of the last press nip is a transfer belt and the upper clothing of the last press nip is a dewatering belt, wherein the lower pressure roller has a larger diameter than the upper pressure roller and the upper clothing after leaving the last press nips the lower Pressing roller wrapped in sections in the web running direction.
- the rear ventilation of the upper fabric ensures a reduction in the vacuum between the upper fabric and the fibrous web. A running of the fibrous web with the upper clothing can thus be prevented.
- the upper clothing - from which the fibrous web is to be separated - wraps around the opposite lower press roller at a defined length after leaving the last press nip. The length of the wrap together with the machine speed determines the period of ventilation. Especially with high-speed machines this period is reduced.
- the dwell time of the fibrous web should also be designed on the upper covering designed as a dewatering belt
- the drainage in the last press nip takes place in the direction of the upper trained as a drainage bandage.
- Water is pressed out of the fibrous web and passes through the upper covering designed as a dewatering belt to the upper press roll, for example in its storage volume designed as grooves.
- the water is spun off by means of hydraulic pressure at the end of the nip and by centrifugal forces and collected in a pan.
- the rewetting of the fibrous web due to shed too flat water, which, for example, falls back on the upper fabric, is prevented by the upper pressure roller with a small roll diameter d u rch the increase in centrifugal force.
- the invention thus provides a solution by which it is possible to densify a fibrous web to a high degree, with high production reliability and reliability.
- the upper press roller must be cantileverable. This requires a relatively expensive and expensive construction. By choosing the smallest possible diameter of the upper press roller, the weight of the upper press roller and thus the cost and the cost of the cantilever can be reduced.
- the fibrous web is almost no longer dewatered in the last press nip.
- a preferred embodiment of the invention therefore provides that the last press nip is designed such that the fibrous web is compressed in the last press nip and the dry content of the fibrous material is only increased by 1 -5% or 1 -2%.
- the last nip is formed by cylindrical nip rolls, i. neither the upper nor the lower press roll is designed as a shoe press roll. This means that according to this preferred embodiment of the invention, the last press nip does not provide an extended press nip.
- a preferred embodiment of the invention therefore provides that the transfer belt has a paper side which is smooth relative to the paper side of the upper clothing of the last press nip.
- a concrete embodiment of the invention provides that the last press nip exerts a peak pressure of at least 8 MPa on the fibrous web.
- the fibrous web is conducted at a dry content of 38% or more and in which the fibrous web is exposed to a peak pressure of at least 8MPa, the fibrous web is highly compressed in already relatively dry state and their gap strength increased significantly.
- the last press on the fibrous web has a peak pressure of up to 25 MPa. Higher peak pressures are not sensible, as they show a significantly higher wear of the machine and clothing with only slightly improved compaction.
- a concrete development of the invention provides that the ratio V u / 0 from the diameter of the lower pressure roller to the diameter of the upper pressure roller 1 ⁇ V u / o ⁇ 2.5, in particular 1, 5 ⁇ V u / 0 ⁇ 2.5 is.
- the "smooth" paper side of the transfer belt is provided by an impermeable polymer coating.
- a particularly preferred embodiment of the invention provides that the transfer belt has a load-bearing and permeable base structure and a machine side provided by the polymer coating, the base structure being embedded in the polymer coating and the polymer coating being integrally formed from the paper side through openings of the polymer coating Base structure extends through to the machine side.
- the polymer coating extends in one piece from the paper to the machine side of the transfer belt. So it has no interfaces that can tend to delamination.
- a liquid polymer material may be introduced on one side of the base structure and caused to penetire through the openings of the base structure to the other side of the base structure and thus extend in one piece through the base structure ,
- a polymer coating is thus provided which extends in one piece from one side of the base structure through the base structure to the other side of the base structure. This means that as a result, the base structure is completely embedded in the one-piece coating.
- the thickness of the transfer belt is less than 10 mm, in particular less than 6 mm, preferably smaller or is equal to 4mnn.
- the polymer coating of the transfer belt can have a hardness between 40 and 99Shore D. Furthermore, it is advantageous if the paper side has a roughness Rz (in MD and CMD) (according to ISO4287, Part 1) of less than 80 ⁇ m. A roughness Rz in the machine direction (MD) of less than 10 ⁇ m and / or a roughness Rz in the cross-machine direction (CMD) of less than 20 ⁇ m are conceivable in this context, for example.
- MD machine direction
- CMD cross-machine direction
- the load-bearing base structure may in particular be formed by a fabric or scrim or spiral screen.
- the last press nip has a nip length of less than 120mm.
- the nip length is preferably in the range greater than 20 mm and less than 120 mm, in particular less than 80 mm.
- the penultimate press nip is formed by a shoe press roll and a cylindrical counter roll.
- the press section has a first press nip through which the fibrous web is guided between an upper and a lower dewatering belt.
- a press section which has at least two press nips each with upper and lower dewatering belt, and the last particular hard roll nip in which the fibrous web is substantially only compacted.
- the first press nip is formed in particular by a shoe press roll and a cylindrical counter roll, whereby the drainage of the Fiber web is further improved.
- the upper and lower dewatering belt of the first press nip is provided in each case in particular by a press felt.
- a concrete embodiment of the invention provides that the penultimate press nip is the second press nip and the last press nip is the third press nip of the press section. In this case, therefore, the press section has only three press nips. Applicant's experiments have shown that with such a configuration, in particular when the first and the second press nip respectively comprise shoe press rolls, very good results with respect to dry content and nip strength of the paper can be achieved.
- the fibrous web is guided in a closed train from the first press nip to the dryer wire of the first dryer group.
- the upper dewatering band of the last nip is provided by a different dewatering band than the upper dewatering band of the penultimate nip.
- the dewatering belts of the first press nip are other dewatering belts than those of the penultimate press nips. This means that the drainage bands of the first press nip, i. the upper and lower dewatering belt of the first press nip, are guided by the first press nip, but not by the penultimate press nip.
- a concrete embodiment of the invention provides that the fibrous web is passed after passing through the penultimate press nip at a further pickup point of the lower dewatering belt of penultimate press nips on the upper dewatering belt of the last press nips, the upper dewatering belt of the last press nips at the other pickup a Wrapping roll wraps around, which is particularly sucked.
- the fibrous web passes from the lower dewatering belt of the first press nip to the upper dewatering belt of the second press nip at a first take-off point after passing through the first press nip upper dewatering belt of the second press nip wraps around a take-off roll at the first take-off point, which is in particular evacuated.
- the drying wire wraps around at the take-off point, in particular a suctioned take-off roll.
- the looped by the dryer wire take-off roll can be driven in this case.
- the upper dewatering belt of the last press nip together with the transfer belt wraps around the lower press roll before the last press nip to a length of 20 to 80 mm. It is also conceivable that the upper dewatering belt of the last press nip wraps around the lower press roll together with the transfer belt after the last press nip to a length of 20 to 80 mm. Of course, it is conceivable that the transfer belt wraps around the lower press roller before and / or after the last press nip to a greater length than does the upper clothing.
- the transfer belt wraps around the lower press roll before the last press nip on the same length as the upper fabric and that after the last press nip, the transfer belt, the lower press roll on a larger Length wraps around as the upper clothing.
- the fibrous web is sandwiched between the top fabric of the last press nip and the transfer belt to the lower press roll of the last press nip and then guided in sandwich along the length of the common wrap around the lower press roll.
- At least one of the last Pressn ip forming rollers is driven.
- a drive of lying within the loop of the upper dewatering belt counterpress roller may, for example, be useful if the upper dewatering belt of the last press nips, for example, is also performed to a take-off roll.
- a drive of the pressure roller lying inside the loop of the transfer belt can, for example, be expedient if the transfer belt is, for example, doctored off for conditioning.
- the transfer belt is treated outside the contact region with the fibrous web by means of a conditioning device.
- the conditioning device comprises at least one edge spray tube by means of which the paper side of the transfer belt is brought into contact with the fibrous web at least one edge on the drive and / or leader side immediately before the paper side is brought into contact with the fibrous web before the last press nip. with a fluid, in particular water, can be acted upon.
- a fluid in particular water
- a further preferred embodiment of the invention provides that the conditioning device comprises a cleaning scraper acting on the paper side of the transfer belt, which cleaning scraper is arranged in front of the at least one edge spray pipe in the transport direction of the transfer belt.
- the cleaning scraper can be used to remove web remnants that adhere to the paper side of the transfer belt stay. Furthermore, it is possible for the cleaning scraper to remove coating which is formed, for example, by fillers present in the paper on the paper side of the transfer belt. The cleaning scraper accordingly cleans the paper side of the transfer belt.
- the cleaning scraper may also be associated with a spray tube, by means of which the cleaning action of the cleaning scraper is supported.
- the conditioning device may further comprise a deflection roller, which is wrapped in a looping area of the transfer belt and thereby acts on the machine side of the transfer belt, wherein the guide roller outside the belt area by means of a cleaning scraper and / or a spray tube, in particular low-pressure spray pipe, can be cleaned.
- the cleaning scraper acting on the paper side preferably acts on the transfer belt around the deflection roller in the looping area of the transfer belt.
- the paper side of the transfer belt is brought into contact with no roller, such as a guide roller.
- the conditioning device preferably comprises an equalization scraper acting on the paper side of the transfer belt for equalizing the water film located on the paper side of the transfer belt, the equalization scraper being arranged in the transport direction of the transfer belt after the cleaning scraper and in front of the at least one edge spray pipe.
- the homogenizing scraper is in this case employed against the paper side of the transfer belt, in particular by means of a spring force, whereby in a stationary state at Einlaufzwickel of transfer belt and scraper, a water sump and the outfeed gusset of transfer belt and scraper, a water film is formed and the thickness of the Wasserfils between the paper side of the transfer belt and scraper influenced is pressed by the elasticity and / or geometry of the doctor blade and / or the contact pressure with which this against the paper side of the transfer belt.
- the homogenizing doctor extends over the entire width of the transfer belt coming into contact with the fibrous web.
- the conditioning device comprises a blowing device acting on the paper side of the transfer belt, which is arranged in the transport direction of the transfer belt downstream of the equalizing doctor and in front of the at least one peripheral injection pipe.
- the blowing device By means of the blowing device, the water film located on the paper side of the transfer belt can be profiled. Furthermore, it is conceivable to completely remove the water through the blowing device.
- the blowing device may in this case comprise a plurality of blowing nozzles, in particular flat jet nozzles, arranged side by side in the cross-machine direction, which in particular may be controlled independently of one another.
- the machine according to the invention is preferably but not exclusively used for the production and / or treatment of coated paper or SC paper.
- a press arrangement which has a press nip through which a fibrous web is brought into contact with a transfer belt, wherein the paper side of the transfer belt is provided in particular by a polymer coating and wherein the press arrangement comprises a conditioning device, with which the paper side of the transfer belt can be treated outside the contact region with the fibrous web.
- the conditioning device comprises an equalizing doctor with a doctor blade convexly curved in relation to the paper side of the conveyor belt, in order to even out the water located on the paper side of the transfer belt.
- the doctor blade extends in this case convexly curved in the machine direction.
- the scraper blade is designed to be elastically elastic at least along its complex curvature line.
- the conditioning device comprises a doctor blade with a doctor blade curved in a convex manner relative to the paper side of the conveyor belt, the doctor blade lies flat against the paper side of the doctor blade
- the conditioning device may further comprise the further components described in the characterizing part of claims 24-27 and 29-30, which in this case are to be seen independently of the machine protected in claim 1.
- the convexly curved doctor blade is pressed by means of a spring force against the paper side of the transfer belt.
- the bias of the spring and by the spring constant can in this case, for example, the thickness of the water film to be influenced.
- the bending elastic scraper blade is biased in its direction of curvature and presses against the paper side of the transfer belt due to its bias.
- the doctor blade is preferably mounted on a holder, wherein the holder in Viewing direction of the transfer belt is preferably arranged in front of the point at which the doctor blade acts on the transfer belt.
- the scraper blade is preferably pressed with a line load in the range of 5N / m to 350N / m, in particular 150N / m to 300N / m, against the paper side of the transfer belt.
- the doctor blade has a radius of curvature in the range 25mm to 500mm and in particular comprises polyethylene or is formed from polyethylene.
- FIG. 1 shows an embodiment of a machine according to the invention for the production and / or treatment of a fibrous web
- Figure 2 shows an embodiment of a conditioning device according to the invention with homogenizing scraper.
- the Textilmasch ine has a shape ierpartie 8, one of the shape ierpartie 8 in the web running direction L immediately following press section 3 and one of the press section 3 in the web running direction L immediately downstream dryer section 4.
- the press section 3 has three press nips 5-7, namely a first press nip 5, a second press nip 6 directly following this in the web running direction and a third press nip 7 immediately following the second press nip 6 in the web running direction L.
- the first Pressn ip 5 is formed by a shoe press roll 9 and a cylindrical counter-roller 10, through which the fibrous web 2 between a top felt 1 1 and a bottom felt 12 is guided.
- the second press nip 6 is formed by a shoe press roll 13 and a cylindrical counter roll 14, through which the fibrous web 2 is guided between a top felt 15 and a bottom felt 16.
- the third press nip 7 is a roll nip formed by a cylindrical press roll 17 and a cylindrical press roll 18, which has a peak pressure of at least 8 MPa on the fibrous web 2 and has a nip length of less than 80 mm.
- the fibrous web 2 is further guided by the third press nip 7 between an upper felt 19 and a transfer belt 20 providing the lower clothing, which has a paper side 29 which is smooth relative to the paper side of the upper felt 19.
- the press roll 17 and the counter roll 18 of the third and last press nips 7 are driven in this case.
- the lower pressure roller 18 has a larger diameter than the upper pressure roller 17, wherein the upper felt 19, after leaving the last press nip 7, wraps around the lower pressure roller 18 in the web running direction L in sections, i. nachumschlingt.
- the fibrous web 2 After passing through the first press nip 5, the fibrous web 2 is transferred at a first take-off point 21 from the lower felt 12 of the first press nip 5 onto the upper felt 15 of the second press nip 6. At the first delivery point 21 wraps around the Top felt 15 of the second press nip 6 an evacuated and driven take-off roll 22nd
- the fibrous web 2 is transferred at a second removal point 23 from the lower felt 16 of the second press nip 6 onto the upper felt 19 of the third press nip 7.
- the top felt 19 of the third press nip 7 also wraps around an evacuated and driven take-off roll 24.
- the fibrous web 2 Before the third press nip 7, the fibrous web 2 has a solids content of at least 38%, preferably at least 45%, particularly preferably at least 50%.
- the fibrous web 2 After passing through the last or third press nip 7, the fibrous web 2 is guided on the transfer belt 20 to a third pickup point 25 and transferred there from the transfer belt 20 on a dryer 26 a first drying group of the dryer section 4, wherein the dryer fabric 26 at the Takeoff point 25 wraps around an evacuated and driven take-off roll 27.
- the first dryer section of the dryer section in this case comprises in particular less than three drying cylinders, preferably less than two drying cylinders.
- the fibrous web 2 is guided here in a closed train from the first press nip 5 to the dryer wire 26 of the first dryer group.
- the fibrous web 2 as shown in FIG. 1, is guided in a closed loop by the forming fabric 40 of the forming section 8 as far as the dryer fabric 26 of the first drying group.
- the paper side 29 of the transfer belt 20 is provided by an impermeable polymer coating. Furthermore, the transfer belt 20 has a load-bearing and permeable base structure, for example formed by a fabric, and a machine side 31 provided by the polymer coating, wherein the base is extruded and the polymer coating extends integrally from the paper side 29 through openings of the base structure to the machine side 31.
- the transfer belt 20 further has a thickness of 5mm.
- Such a transfer belt is described, for example, in the German patent application with the application number 10 2007 055 864.5. The content of this application will be fully incorporated into this application in view of the structure of the transfer tape.
- the transfer belt 20 is treated outside the contact region with the fibrous web 2 by means of a conditioning device.
- the conditioning device comprises an edge spray tube 28, by means of which the paper side 29 of the transfer belt 20 can be acted upon with water at the edges on the drive and driver side immediately before the paper side in front of the third press nip 7 is brought into contact with the fibrous web 2.
- the conditioning device further has a cleaning scraper 30, which acts on the paper side 29 of the transfer belt 20 and is arranged in the transport direction T of the transfer belt 20 in front of the at least one edge spray pipe 28.
- the cleaning scraper 30 is associated with a low-pressure spray pipe 30a which cleans the cleaning scraper 30, i. Removal of paper remnants and debris removal, which supports paper side 29 of the transfer belt.
- the conditioning device further has a deflection roller 32, which is looped around in a wrapping area of the transfer belt 20 and thereby acts on the machine side 31 of the transfer belt 20, wherein the guide roller 32 outside the belt area by means of a cleaning scraper 33 and a low-pressure spray pipe 34 can be cleaned.
- the conditioning device also has an equalization scraper 35 acting on the paper side 29 of the transfer belt 20 for equalizing the water present on the paper side 29 of the transfer belt 20.
- the homogenizing scraper 35 is arranged in the transporting direction T of the transfer belt 20 after the cleaning scraper 30 and before the edge spray pipe 28.
- a regulator roller 38 is arranged downstream of the deflecting roller 32 and in front of the peripheral injection pipe 28 with which the travel of the transfer belt 20 can be controlled, wherein in the present case the governing roller 41 is looped
- the lateral surface of the regulator roller 41 is grooved to a
- the regulator roller 41 by means of a scraper 42 and / or a spray tube 42a can be cleaned.
- the paper side 29 of the transfer belt 20 can be located on the paper side
- the regulator roller 41 is arranged in the transport direction in front of the equalizing doctor 35.
- the conditioning device comprises a blowing device 36 acting on the paper side 29 of the transfer belt 20, which is arranged in the transporting direction T of the transfer belt 20 after the homogenizing doctor 35 and in front of the peripheral injection pipe 28.
- the homogenizing scraper 35 has a relation to the paper side 29 of the Conveyor belt 20 convex curved scraper blade 37, by means of which on the paper side 29 of the transfer belt 20 located water 39 can be made uniform to a water film 38.
- the doctor blade 37 extends in the machine direction MD of the machine 1 convexly curved.
- the convexly curved scraper blade 37 is rotatably mounted on a holder 40 parallel to the cross machine direction and is in this case pressed by a spring to generate a spring force against the paper side 29 of the transfer belt 20, so that the convex curved scraper blade 37 in the machine direction MD to a length of at least 5mm rests on the paper side 29 of the transfer belt 20.
- the holder 40 viewed in the transport direction T of the transfer belt 20, is arranged in front of the location at which the doctor blade 37 acts on the transfer belt 20.
- an optional roll 43 to be used is shown by dashed lines, which serves as a support element for supporting the transfer belt 20 at the location at which the doctor blade 37 acts on the transfer belt 20.
- the doctor blade 37 has a radius of curvature in the range 25mm to 500mm and is formed, for example, of polyethylene.
Landscapes
- Paper (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810043997 DE102008043997A1 (en) | 2008-11-24 | 2008-11-24 | Machine for producing and / or treating a fibrous web |
PCT/EP2009/063703 WO2010057734A1 (en) | 2008-11-24 | 2009-10-20 | Machine for producing and/or treating a fiber web |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2367976A1 true EP2367976A1 (en) | 2011-09-28 |
EP2367976B1 EP2367976B1 (en) | 2013-04-17 |
Family
ID=41050724
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09740112.9A Not-in-force EP2367976B1 (en) | 2008-11-24 | 2009-10-20 | Machine for producing and/or treating a fiber web |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2367976B1 (en) |
CN (1) | CN102272379A (en) |
DE (1) | DE102008043997A1 (en) |
FI (1) | FI8669U1 (en) |
WO (1) | WO2010057734A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103726388A (en) * | 2013-12-19 | 2014-04-16 | 云南中烟昆船瑞升科技有限公司 | Reconstituted tobacco efficient dehydrating and squeezing device |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107747250B (en) * | 2017-11-16 | 2019-05-03 | 浙江华宇纸业有限公司 | A kind of wet end system of paper machine |
AT520319B1 (en) * | 2018-03-01 | 2019-03-15 | Andritz Ag Maschf | METHOD AND DEVICE FOR TREATING A FIBROUS WEB IN A LANGNIP PRESS UNIT |
FI12320U1 (en) * | 2018-12-20 | 2019-03-15 | Valmet Technologies Oy | Screen of a fibre web machine |
CN114921998A (en) * | 2022-05-16 | 2022-08-19 | 维达护理用品(广东)有限公司 | Production process of toilet paper with two starting directions |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI114227B (en) * | 1995-04-24 | 2004-09-15 | Metso Paper Inc | Paper machine with press section and dryer section |
US5944956A (en) * | 1997-04-22 | 1999-08-31 | Valmet, Inc. | Surface-cleaning doctor for use in a papermaking operation and associated method |
DE19731100A1 (en) * | 1997-07-19 | 1999-01-21 | Voith Sulzer Papiermasch Gmbh | Web adhesion adjustment |
GB2346387B (en) * | 1999-02-03 | 2002-12-11 | Scapa Group Plc | Transfer fabric |
US6730192B1 (en) * | 1999-05-14 | 2004-05-04 | Metso Paper, Inc. | Method and machine for manufacturing printing paper or paperboard |
DE10249040A1 (en) * | 2002-10-22 | 2004-05-19 | Voith Paper Patent Gmbh | Web transfer between continuous permeable and impermeable belts, in a machine for the production of paper or cardboard or tissue, has the belts pressed together at the transfer point |
FI119069B (en) * | 2005-02-23 | 2008-07-15 | Metso Paper Inc | Arrangement with press section of web forming machine |
DE102005052858A1 (en) * | 2005-11-07 | 2007-05-10 | Voith Patent Gmbh | Cleaning system for central roll press has high or low pressure cleaning fluid and/or doctor to clean central belt |
DE102007055864A1 (en) | 2007-12-19 | 2009-06-25 | Voith Patent Gmbh | Conveyor belt and method for its production |
-
2008
- 2008-11-24 DE DE200810043997 patent/DE102008043997A1/en not_active Withdrawn
-
2009
- 2009-08-18 FI FI20090296U patent/FI8669U1/en not_active IP Right Cessation
- 2009-10-20 WO PCT/EP2009/063703 patent/WO2010057734A1/en active Application Filing
- 2009-10-20 EP EP09740112.9A patent/EP2367976B1/en not_active Not-in-force
- 2009-10-20 CN CN2009801534484A patent/CN102272379A/en active Pending
Non-Patent Citations (1)
Title |
---|
See references of WO2010057734A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103726388A (en) * | 2013-12-19 | 2014-04-16 | 云南中烟昆船瑞升科技有限公司 | Reconstituted tobacco efficient dehydrating and squeezing device |
Also Published As
Publication number | Publication date |
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CN102272379A (en) | 2011-12-07 |
WO2010057734A1 (en) | 2010-05-27 |
FIU20090296U0 (en) | 2009-08-18 |
FI8669U1 (en) | 2010-03-17 |
DE102008043997A1 (en) | 2010-05-27 |
EP2367976B1 (en) | 2013-04-17 |
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