CN103237940A - Method and apparatus for producing paper or board - Google Patents
Method and apparatus for producing paper or board Download PDFInfo
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- CN103237940A CN103237940A CN2011800582454A CN201180058245A CN103237940A CN 103237940 A CN103237940 A CN 103237940A CN 2011800582454 A CN2011800582454 A CN 2011800582454A CN 201180058245 A CN201180058245 A CN 201180058245A CN 103237940 A CN103237940 A CN 103237940A
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- web
- slurry mix
- nip
- slurry
- dry matter
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/50—Spraying or projecting
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G1/00—Calenders; Smoothing apparatus
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/16—Sizing or water-repelling agents
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/52—Addition to the formed paper by contacting paper with a device carrying the material
- D21H23/56—Rolls
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/52—Addition to the formed paper by contacting paper with a device carrying the material
- D21H23/56—Rolls
- D21H23/58—Details thereof, e.g. surface characteristics, peripheral speed
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
- D21H25/04—Physical treatment, e.g. heating, irradiating
Landscapes
- Paper (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
A method for producing paper or board comprises spraying a size mixture from spray nozzles (4, 5) direct onto at least one surface of a web (6) and pressing the web, after spraying the size mixture, by leading the web through a press nip (3) which is formed by two rotating press members (1, 2) which are loaded against each other. In the method the size mixture with a dry solids content of above 15% is sprayed to a liquid film onto the surface of the web (6) and the web is pressed in a hard press nip (3) which is formed between press members (1, 2) having hard surfaces. An apparatus (10) for producing paper or board.
Description
Technical field
The present invention relates to a kind of method and apparatus for the manufacture of paper or cardboard.The invention particularly relates to the surperficial starching (top sizing) of (not relating to uniquely although be) fine paper and carton plate.
Background technology
Paper or cardboard, for example fine paper or container board (as interleaving paper or corrugated paper) relate to the manufacture process that expectation is handled with the treatment media of the raising web intensity such as liquid slurry.The processing of web has been stipulated substantially the strength characteristics of final products by coating.Usually use various starch as slurry, in this slurry, can add multiple additives.The present invention is not limited to any specific slurry mix, and is interpreted as about slurry, absorbs in the processed web at least in part and has improved all mixtures of the intensity of web.
In the starching of container board and corrugated paper (fluting), in order to realize that (Huygen Scott-Bond) pursues permeability preferably for CMT and peel strength.In film starching or injection coating, when basic weight is higher, can not obtain to depend on infiltrative good strength by soft nip.
In coating unit, it is well-known using the roller with soft-surface in the nip relevant with this coating.One of the reason that use has the roller of pressure release surface is in order to form smooth last serous coat.The length of nip increases because of soft compressive surface, in order to increase the acting duration of squeeze pressure and the permeability of starching.Yet when the content of dry increased, many difficulties were associated with the coating of the slurry mix with soft compressive surface and high dry matter content.When the water content of slurry mix reduces so that when forming higher dry matter content, slurry mix becomes sticky and adheres to the soft-surface of extruded member.Soft compressive surface is difficult to keep clean.Soft nip friction web also makes material break away from this web.Be difficult to cleaning and adhere to the material on the web from soft compressive surface (for example soft-surface of nip roll).The material that adheres to soft compressive surface will finally arrive the web of starching in nip, and will make the quality deterioration of target product.
The dehydration of relatively web being carried out with starching has limited the efficient of paper machine and board machine.Because only the water yield that can remove from mobile web by a drying device is limited, when the speed of web improved, the quantity of drying device in succession must increase.The length of machine is increased in the increase of drying device quantity and price improves.
The viscosity limitation of slurry spray to apply and the film starching in the slurry dry matter content.Be well known that apply by simple injection, people can not make full-bodied slurry mix uniform on the surface of web, but slurry mix still keeps the drop state.It is lower that people attempt to make (slurry mix) viscosity to remain, and makes too high viscosity can not cause spraying slurry film irregular or that cause being applied and remain band shape.By highly improving and expensive starch, before bringing up to above 40mPas, viscosity obtains 20% dry matter content.The cost of this starch to be transformed is usually than not improved native starch height about 70%.By the more enzyme of dispensing, perhaps by prolonging acting duration, can will be transformed by the native starch enzymatic and the viscosity-modifying of the slurry of slaking is a certain limit.The cost that adds enzyme is higher, and the service life of improved starch is shorter.After sometime, starch begins to decompose saccharogenesis, in addition, when being a specific amount preparation slurry, be difficult to change collision the duration.
The operation that utilizes the low slurry of dry matter content to carry out causes high dry demand, makes subsequently drying section enlarge and reduce potential (operation) speed of production line.The operation that utilizes the high slurry of dry matter content to carry out, therefore and cause pond starching machine operation under high viscosity in the pond starching (pond sizing), can cause bigger web brake force and destroy runnability.
Publication number is the method that the patent documentation of FI20011455 has disclosed a kind of paper or cardboard for the manufacture of starching.Dry matter content by slurry-aqueous mixtures of being applied is at least 15%, and this slurry-aqueous mixtures is to be not more than (showing with the scale of watery slurry mix) 5g/m
2The one side of amount paint web.
Patent publication No. is that the patent documentation of FI121084B has disclosed a kind of method and apparatus for the treatment of paper web or cardboard web.Handle mixture and be covered on the surface of web, web is led to pass from nip, and moist processing mixture is extruded to this web in this nip.
Summary of the invention
According to a first aspect of the invention, a kind of method for the manufacture of paper or cardboard is provided, this method comprises on slurry mix at least one surface from a plurality of nozzle ejection to web, and after the jetting slurry material mixture, push this web by guiding this web to pass nip, this nip is formed by two rotation extruded member of mutual loading, this method comprises that dry matter content is surpassed 15% slurry mix to be ejected on the lip-deep liquid film of this web, and this web of extruding in hard nip, this hard nip is formed between the extruded member with crust.
Preferably, this slurry mix is to surpass 15%, and is more preferably injected above 40% dry matter content.
Preferably, this slurry mix is injected with the viscosity that surpasses 100mPas.Preferably, when the dry matter content of this slurry mix was above above 40%, the viscosity of this slurry mix can surpass 100mPas.
Preferably, in this nozzle, form the slurry mix stream of turbulent condition by high expulsion pressure.Preferably, this slurry mix is arranged in the nozzle with 20 to 100bar expulsion pressure.According to some embodiment, this slurry mix is arranged in the nozzle with 20 to 50bar expulsion pressure.According to some embodiment, this slurry mix is arranged in the nozzle with 20 to 35bar expulsion pressure.
Preferably, this web is extruded by roller or band, this roller or bring to few comprise in its surface metal, steel, polymer, epoxy resin, rubber or its combination.Preferably, this web is extruded by deflection-compensated roll.
Preferably, in the manufacturing of this web, use regenerated fiber, and jetting slurry material mixture on the face that comprises regenerated fiber of this web at least.
Preferably, the linear load with 30 to 80kN/m pushes this web in this nip.Preferably, the linear load with 80 to 200kN/m pushes this web in this nip.
Preferably, by the distribution of nozzle, by jet size and/or regulate the coated weight of this slurry mix by the dry matter content of this slurry mix.Preferably, regulate the coated weight of this slurry mix subtly by the value (rate, ratio) that changes expulsion pressure.
Preferably, starch, PVA, silicones, coating paste, latex or colored surface (pigment-surface) slurry mix are applied as this slurry mix.
According to a second aspect of the invention, provide a kind of device for the manufacture of paper or cardboard, this device comprises: a plurality of nozzles, at least one surface that slurry mix is ejected into web; And nip, being used for after spraying this slurry mix, pushing this web, this nip is formed by two rotatable extruded member, and these extruded member can load mutually.In this device, dry matter content is suitable for being injected into the lip-deep liquid film of this web above this slurry mix of 15%, and is extruded in hard nip subsequently, and this nip is formed between the extruded member with crust.
Preferably, this device is configured to surpass 15% in order to spray dry matter content, more preferably surpasses 40% slurry mix.Preferably, this device is configured in order to spray the slurry mix that viscosity surpasses 100mPas.
Preferably, nozzle is configured to spray with high expulsion pressure the slurry mix of turbulent condition.Preferably, this device is equipped with high-pressure pump, and this high-pressure pump is configured to produce 20 to 100bar expulsion pressure.According to some embodiment, this high-pressure pump is configured to produce 20 to 50bar expulsion pressure.According to some embodiment, this high-pressure pump is configured to produce 20 to 35bar expulsion pressure.
Preferably, the above-mentioned extruded member with crust is set to roller or band, this roller or bring to few comprise in its surface metal, steel, polymer, epoxy resin, rubber or its combination.Preferably, this extruded member is set to deflection-compensated roll.
Preferably, this device comprises charger, and this charger is used for loading this nip with height to the linear load of 200kN/m.
This slurry mix can be to be coated on this web than the higher dry matter content of before having thought of possible dry matter content.With high viscosity more (slurry mix) operation, also allow to use cheap starch and do not have accurate viscosity limitation.
Slurry mix with high dry matter content can enter the turbulent condition with high injection pressure.This turbulent condition can produce by the flow velocity that increases this slurry mix by this high injection pressure.This high injection pressure help to weaken with separate this slurry mix with high dry matter content in binding (binding), wherein this slurry mix can obtain better coating.Less jet size also can influence the increase of flow velocity.
Can realize higher contact pressure by hard nip rather than by soft nip.When comparing with the intensity of web during the starching carried out with high dry matter content half as large by soft nip is handled, in handling by this hard nip and the starching carried out with high dry matter content, the intensity of web can improve.Extruded member can keep clean in hard nip at run duration and can toughness.
By spraying coating, especially hard nip, can realize the suitable permeability of this surface slurry.The suitable permeability of this surface slurry especially can be with heavier quality, for example to be higher than 90g/m
2Quality and realize.The permeability of this slurry can be improved by the single face coating, and total amount of slurry can be optionally do not increased.Two-sided starching also is fine.
This starching can be implemented at slurry extruder, calender, wet end, band extruder, drying section or another papermaking apparatus.The type of paper can be cardboard, interleaving paper, corrugated paper, fine paper, newsprint etc.The liquefied mixture that applies can be starch, PVA, silicones, coating paste, latex, colored surface slurry mix or the lip-deep corresponding treatment media that is coated in fiber web usually.Preferably, the liquefied mixture that is applied improves the intensity of web.
The of the present invention different embodiment that sets forth or set forth only is associated with schemes more of the present invention.Those skilled in the art it should be understood that any embodiment of one aspect of the present invention can be applied to same scheme of the present invention and other schemes individually or with other embodiment in combination.
Description of drawings
Hereinafter with reference to accompanying drawing the present invention is described by way of example, in the accompanying drawings:
Fig. 1 illustrates the injection coating unit, and in this device, two extruded member with crust form nip;
Fig. 2 schematically shows the slurry mix that ought have high dry matter content and is ejected at 110g/m
2In the time of on the cardboard of basic weight, the difference between hard nip and the soft nip, and the Huygen intensity of pulpboard is gone up on the surface; And
Fig. 3 schematically shows the slurry mix that ought have high dry matter content and is ejected at 110g/m
2In the time of on the cardboard of basic weight, the difference between hard nip and the soft nip, and the CMT30 intensity of pulpboard is gone up on the surface.
The specific embodiment
Accompanying drawing shown in it should be understood that is not to draw fully to scale, and the main purpose of accompanying drawing is that embodiments of the invention are shown.
Fig. 1 shows and sprays coating unit 10, and this device comprises having two extruded member mutual loading, that have crust, has first roller 1 and second roller 2 with crust of crust.Roller 1,2 with crust is forming nip 3 each other.Paper web or cardboard web 6 are led to this hard nip after the slurry mix with high dry matter content is injected on the web.Spray coating unit 10 and before this nip, comprise first nozzle 4 and/or second nozzle 5.By first nozzle 4 and/or second nozzle 5, can handle with the starching that slurry mix carries out single or double to web.
Before nip, the injected coating unit of this slurry is coated on the web, and this injection coating unit preferably includes nozzle.This web is led to this nip, and this nip preferably has heavier contact pressure.This slurry can be forced into web by this heavier contact pressure.When the slurry film was big especially, slurry can be penetrated into web inside.High pressure in the nip also makes web flatten smooth and makes the surface of web close more each other, and wherein the distance of advancing by slurry increases.The another side of web also can be surperficial starching.Starching can occur on the dirtier bottom surface of web, particularly takes place relatively on the regenerated fiber machine and with the web that comprises regenerated fiber.Slurry also can mainly be coated on the one side of web, wherein can form bigger liquid film on the surface of web.
In order to improve the contact stress level of nip 1, hard nip 3 is equiped with the extruded member with crust, in order to forming sufficiently high contact pressure, and is used for making web 6 to obtain to have the sufficient permeability of the slurry mix of high dry matter content.Preferably, nip 3 is combinations of the hard polymer roll of the combination of two steel riders or steel rider and.And rubber, polyurethane, epoxy resin, steel, steel band, the combination of these materials or the lip-deep hard material that the common other materials that uses in the hard nip of paper machine can be set to extruded member.Compression roller can have coating to prevent the adhesion of slurry, because film formation ability is not to be necessary.These rollers also can be scratched or be equiped with cleaning device.The cleaning of crust will be carried out manyly than the cleaning of pressure release surface easily, and slurry mix will be not easy to adhere to crust.
Can strengthen slurry to the permeability of web by after the coating of passing hard roll nip, moving web.Because roller forms ability by scratch or because do not have film when using grooved bar, can not carry out the film starching.And if required, can in nip 3, use for example be higher than normal conditions 80 to 200kN/m or even bigger linear load.
Also can use one or more bands as extruded member.This extruded member can be hard band.Preferably, this band is led and is passed roll nip.Compression roller 2,3 can also be deflection-compensated roll, can form high linear load thereby make in the nip.By deflection-compensated roll, can in nip, form big and contact pressure uniformly, and can improve slurry mix to the permeability of web.When with tube roll (tube roll) when comparing, by using deflection-compensated roll, can also significantly reduce roller diameter.
Preferably, the traditional nozzle 4,5 that is higher than traditional expulsion pressure by use is coated to slurry on the web 6.By this pressure, the liquid of viscosity can flow out quickly from nozzle, and wherein liquid flow becomes turbulent condition.The formation of regular injection need produce turbulent flow in the hole of nozzle.Though can use lower or higher pressure, preferred pressure is about 20 to 35bar.After applying, web is run to this nip, and wherein slurry drips and becomes smooth and this slurry is penetrated in the web.
Slurry mix at first is pumped with lower pressure by pressurized screen (pressure sieve), by independent high-pressure pump pressure is increased to the level of expectation then.Because can not be main working pressure is adjusted the amount of coating, therefore regulate coated weight by distribution, the size of nozzle and the dry matter content of slurry of the nozzle 4 in the playpipe, 5 selection.But working pressure carries out meticulous adjusting in spraying coating.
Can annotate the gross differences that the intensity of the web 6 that starching handles increases by Fig. 2 and Fig. 3.When slurry mix is ejected on the web, between handling, the starching of being undertaken by hard nip and soft nip produces significant difference, and this slurry mix has different dry matter contents, and web is extruded with different load in nip afterwards.The 110g/m of surperficial starching has been shown among Fig. 2
2The Huygen intensity of the cardboard of basic weight wherein illustrates the percentage that Huygen intensity increases on the longitudinal axis, and illustrates from the amount of the starch of web measurement to restrain every square metre (being unit) on transverse axis.Figure 3 illustrates the 110g/m of surperficial starching
2The CMT30 intensity of the cardboard of basic weight wherein illustrates the percentage that CMT30 intensity increases at the longitudinal axis, and illustrates from the amount of the starch of web measurement to restrain every square metre (being unit) on transverse axis.
The final result of the test layouts that the intensity of the difference of hard nip and soft nip and interleaving paper/corrugated paper compares has been shown in Fig. 2 and Fig. 3.In this test layouts, the slurry of the dry matter content of employing 40% is tested the increase of intensity.As slurry mix, use two kinds of improved cornstarchs in the following manner:
Dry matter content-viscosity 118mPas of-40%;
Dry matter content-viscosity 24mPas of-20%.
In addition, use low viscosity oxidation potato starch with low dry matter content of 25% as the slurry mix of strength ratio in.Apply the slurry mix with high dry matter content on the two sides of web by the high-pressure pump of injection coating unit that uses traditional injection to apply the nozzle of beam.The amount of starch of staying on two faces of web is measured, and its result is shown in Fig. 2 and Fig. 3, and therefore the amount of starch of dispensing is half of the value shown in the chart on a face.In the process with the high viscosity operation, the amount of slurry is limited by the discharge rate of high-pressure pump (yield).
In this test layouts, use the compression roller of the crust with hard calender nip as having the extruded member 1,2 of crust.In this test layouts, first compression roller 1 is the polymer roll (diameter 375mm, hardness 95ShD) with crust, and second compression roller 2 is steel rider (diameter 500mm).As the linear load of hard nip 3, for the slurry mix use 30 of 40% high dry matter content and the linear load of 60kN/m, and for the slurry mix use 10,30,60 of 20% dry matter content and a series of linear loads of 80kN/m.
In this test layouts, use the compression roller with the pressure release surface that sprays extruding as having the extruded member of pressure release surface, the diameter of this compression roller is 1425mm, hardness is 20P﹠amp; J.As the linear load of soft nip, use the load of 50kN/m.
Can see that from the chart of Fig. 2 and Fig. 3 when extruded web in hard nip, the same intensity that can utilize less amount of slurry to obtain the web of starching processing improves.Utilize 40% high dry matter content and full-bodied slurry mix, because need be less from the water of drying on the web, therefore can obtain good intensity raising to have cost-benefit mode.Therefore, can save drying energy, can reduce the investment of drying device, and as expectation, can improve production capacity.
The description of preamble provides a plurality of non-limiting examples of some embodiments of the present invention.The details that the present invention is not limited to propose, the present invention can implement with other methods that is equal to by contrast, and this is apparent to those skilled in the art.Can use some features of the embodiment that above discloses to obtain advantage of the present invention, and need not to use other features.
Similarly, the description of preamble only should be considered to the illustration of principle of the present invention, and is not limitation of the present invention.Therefore, scope of the present invention is only limited by appending claims.
Claims (21)
1. method for the manufacture of paper or cardboard, this method comprises slurry mix from a plurality of nozzles (4,5) be directly injected at least one surface of web (6), and after the jetting slurry material mixture, push this web by leading this web to pass nip (3), this nip (3) is by two rotation extruded member (1 that load each other, 2) form, it is characterized in that, dry matter content is ejected into the lip-deep liquid film of this web (6) above 15% slurry mix, and this web of extruding in hard nip (3), this hard nip (3) is formed on the extruded member (1 with crust, 2) between.
2. method according to claim 1 is characterized in that, sprays dry matter content and surpasses 15%, more preferably surpasses 40% slurry mix.
3. method according to claim 1 and 2 is characterized in that, sprays the slurry mix that viscosity surpasses 100mPas.
4. according to each described method in the claim 1 to 3, it is characterized in that, in described nozzle (4,5), form the slurry mix stream of turbulent condition by high expulsion pressure.
5. according to each described method in the claim 1 to 4, it is characterized in that, this slurry mix is arranged in the described nozzle with 20 to 100bar expulsion pressure.
6. according to each described method in the claim 1 to 5, it is characterized in that, utilize roller (1,2) or this web of band extruding, this roller or bring to few comprise in its surface metal, steel, polymer, epoxy resin, rubber or its combination.
7. according to each described method in the claim 1 to 6, it is characterized in that, utilize deflection-compensated roll to push this web.
8. according to each described method in the claim 1 to 7, it is characterized in that, in the production of this web (6), use regenerated fiber, and spray this slurry mix at the face that comprises regenerated fiber of this web at least.
9. according to each described method in the claim 1 to 8, it is characterized in that the linear load with 30 to 80kN/m in this nip (3) pushes this web (6).
10. according to each described method in the claim 1 to 8, it is characterized in that the linear load with 80 to 200kN/m in this nip (3) pushes this web (6).
11. according to each described method in the claim 1 to 10, it is characterized in that, by the distribution of described nozzle (4,5), by jet size and/or regulate the coated weight of this slurry mix by the dry matter content of this slurry mix.
12. according to each described method in the claim 1 to 11, it is characterized in that, regulate the coated weight of this slurry mix by the value that changes expulsion pressure subtly.
13. according to each described method in the claim 1 to 12, it is characterized in that, starch, PVA, silicones, coating paste, latex or colored surface slurry mix applied as this slurry mix.
14. the device for the manufacture of paper or cardboard (10), this device comprises: a plurality of nozzles (4,5), at least one surface that slurry mix is ejected into web (6); And nip (3), be used for after spraying this slurry mix, pushing this web, this nip (3) is formed by two rotatable extruded member (1,2), described extruded member can load each other, it is characterized in that in this device, dry matter content is suitable for being injected into the lip-deep liquid film of this web (6) above 15% slurry mix, and in hard nip (3), be extruded subsequently, this hard nip is formed between the extruded member (1,2) with crust.
15. device according to claim 14 is characterized in that, this device is configured to spray dry matter content and surpasses 15%, more preferably surpasses 40% slurry mix.
16., it is characterized in that this device is configured to spray the slurry mix that viscosity surpasses 100mPas according to claim 14 or 15 described devices.
17., it is characterized in that described nozzle (4,5) is configured to spray with high expulsion pressure the slurry mix stream of turbulent condition according to each described device in the claim 14 to 16.
18. according to each described device in the claim 14 to 17, it is characterized in that this device is equipped with high-pressure pump, this high-pressure pump is configured to produce 20 to 100bar expulsion pressure.
19. according to each described device in the claim 14 to 18, it is characterized in that, this extruded member with crust is set to roller (1,2) or band, this roller or bring to few comprise in its surface metal, steel, polymer, epoxy resin, rubber or its combination.
20. according to each described device in the claim 14 to 19, it is characterized in that this extruded member is set to deflection-compensated roll.
21. according to each described device in the claim 14 to 20, it is characterized in that this device comprises charger, this charger is used for loading this nip with height to the linear load of 200kN/m.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20106263 | 2010-12-01 | ||
| FI20106263A FI124591B (en) | 2010-12-01 | 2010-12-01 | METHOD AND EQUIPMENT FOR THE MANUFACTURE OF PAPER OR PAPERBOARD |
| PCT/FI2011/051038 WO2012072873A1 (en) | 2010-12-01 | 2011-11-25 | Method and apparatus for producing paper or board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103237940A true CN103237940A (en) | 2013-08-07 |
Family
ID=43414959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011800582454A Pending CN103237940A (en) | 2010-12-01 | 2011-11-25 | Method and apparatus for producing paper or board |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2646620A1 (en) |
| CN (1) | CN103237940A (en) |
| FI (1) | FI124591B (en) |
| WO (1) | WO2012072873A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107636227A (en) * | 2015-06-23 | 2018-01-26 | 凯米罗总公司 | The method for controlling hydrophobic particle in aqueous environments in Paper or cardboard manufacture |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI127948B (en) * | 2017-02-01 | 2019-05-31 | Voith Patent Gmbh | Method and device for starch application |
| DE102018100489A1 (en) | 2018-01-11 | 2019-07-11 | Voith Patent Gmbh | Application method and device |
| FI128981B (en) * | 2018-07-27 | 2021-04-30 | Voith Patent Gmbh | Method and device for starch application |
| EP3964644A1 (en) * | 2020-09-02 | 2022-03-09 | Valmet Technologies Oy | Sizer |
| PL244240B1 (en) * | 2023-04-14 | 2023-12-18 | Private Label Tissue Spolka Z Ograniczona Odpowiedzialnoscia | Method for coating a paper web and system for coating a paper web |
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| WO2000055423A1 (en) * | 1999-03-12 | 2000-09-21 | Metso Paper, Inc. | Method and apparatus for handling a paper or board web |
| CN1522329A (en) * | 2001-07-03 | 2004-08-18 | 美特索造纸公司 | Method and apparatus for producing sized paper or board |
| WO2006058961A1 (en) * | 2004-12-01 | 2006-06-08 | Metso Paper, Inc. | Method and apparatus for treating a fibre web |
| WO2007147949A2 (en) * | 2006-06-21 | 2007-12-27 | Metso Paper, Inc. | Method and apparatus for treating a fibre web |
| DE102008021541A1 (en) * | 2007-05-14 | 2008-11-20 | Metso Paper, Inc. | Procedure for the treatment of paper- or cardboard web or a corresponding fiber web, comprises applying a treatment medium on a surface of the web by guiding the web through an inlet slot in an application chamber |
| DE202009016157U1 (en) * | 2009-11-26 | 2010-03-04 | Metso Paper, Inc. | Spray and Teichleimpressvorrichtung for a paper or board web |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI123582B (en) * | 2010-04-29 | 2013-07-31 | Metso Paper Inc | METHOD AND EQUIPMENT FOR HANDLING THE FIBER |
-
2010
- 2010-12-01 FI FI20106263A patent/FI124591B/en not_active IP Right Cessation
-
2011
- 2011-11-25 WO PCT/FI2011/051038 patent/WO2012072873A1/en active Application Filing
- 2011-11-25 CN CN2011800582454A patent/CN103237940A/en active Pending
- 2011-11-25 EP EP11813542.5A patent/EP2646620A1/en not_active Withdrawn
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| DE19504652A1 (en) * | 1995-02-13 | 1996-08-14 | Kotterer Grafotec | Device for generating a jet of liquid |
| WO2000055423A1 (en) * | 1999-03-12 | 2000-09-21 | Metso Paper, Inc. | Method and apparatus for handling a paper or board web |
| CN1522329A (en) * | 2001-07-03 | 2004-08-18 | 美特索造纸公司 | Method and apparatus for producing sized paper or board |
| WO2006058961A1 (en) * | 2004-12-01 | 2006-06-08 | Metso Paper, Inc. | Method and apparatus for treating a fibre web |
| WO2007147949A2 (en) * | 2006-06-21 | 2007-12-27 | Metso Paper, Inc. | Method and apparatus for treating a fibre web |
| DE102008021541A1 (en) * | 2007-05-14 | 2008-11-20 | Metso Paper, Inc. | Procedure for the treatment of paper- or cardboard web or a corresponding fiber web, comprises applying a treatment medium on a surface of the web by guiding the web through an inlet slot in an application chamber |
| DE202009016157U1 (en) * | 2009-11-26 | 2010-03-04 | Metso Paper, Inc. | Spray and Teichleimpressvorrichtung for a paper or board web |
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| 刘忠 主编: "《制浆造纸概论》", 31 January 2007 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107636227A (en) * | 2015-06-23 | 2018-01-26 | 凯米罗总公司 | The method for controlling hydrophobic particle in aqueous environments in Paper or cardboard manufacture |
| CN107636227B (en) * | 2015-06-23 | 2021-01-05 | 凯米罗总公司 | Method for controlling hydrophobic particles in an aqueous environment in paper or paperboard manufacturing |
Also Published As
| Publication number | Publication date |
|---|---|
| FI20106263A (en) | 2012-06-02 |
| FI124591B (en) | 2014-10-31 |
| WO2012072873A1 (en) | 2012-06-07 |
| FI20106263A0 (en) | 2010-12-01 |
| EP2646620A1 (en) | 2013-10-09 |
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Address after: Espoo, Finland Applicant after: Veimeide Technology Co., Ltd. Address before: Helsinki Applicant before: Metso Paper Inc. |
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Free format text: CORRECT: APPLICANT; FROM: METSO PAPER INC. TO: VEIMEIDE TECHNOLOGY CO., LTD. |
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Application publication date: 20130807 |