CN108291365A - Device and method for manufacturing fibrous cloth width - Google Patents

Device and method for manufacturing fibrous cloth width Download PDF

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Publication number
CN108291365A
CN108291365A CN201680068171.5A CN201680068171A CN108291365A CN 108291365 A CN108291365 A CN 108291365A CN 201680068171 A CN201680068171 A CN 201680068171A CN 108291365 A CN108291365 A CN 108291365A
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CN
China
Prior art keywords
head box
fibrous
equipment
equipment according
cloth width
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
Application number
CN201680068171.5A
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Chinese (zh)
Inventor
T.吕尔
K-P.奥尔特罗格
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Voith Patent GmbH
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Voith Patent GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Voith Patent GmbH filed Critical Voith Patent GmbH
Publication of CN108291365A publication Critical patent/CN108291365A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • D21F1/02—Head boxes of Fourdrinier machines
    • D21F1/028—Details of the nozzle section
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
    • D21F11/02—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines of the Fourdrinier type
    • D21F11/04—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines of the Fourdrinier type paper or board consisting on two or more layers
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/04—Arrangements thereof
    • D21F3/045—Arrangements thereof including at least one extended press nip
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/08—Pressure rolls
    • 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
    • D21F5/02—Drying on cylinders
    • D21F5/04—Drying on cylinders on two or more drying cylinders
    • 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
    • D21F5/02—Drying on cylinders
    • D21F5/04—Drying on cylinders on two or more drying cylinders
    • D21F5/042—Drying on cylinders on two or more drying cylinders in combination with suction or blowing devices
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F5/00—Dryer section of machines for making continuous webs of paper
    • D21F5/02—Drying on cylinders
    • D21F5/04—Drying on cylinders on two or more drying cylinders
    • D21F5/042—Drying on cylinders on two or more drying cylinders in combination with suction or blowing devices
    • D21F5/044—Drying on cylinders on two or more drying cylinders in combination with suction or blowing devices using air hoods over the cylinders
    • 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
    • D21F5/18—Drying webs by hot air
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F9/00—Complete machines for making continuous webs of paper
    • D21F9/003—Complete machines for making continuous webs of paper of the twin-wire type
    • D21F9/006—Complete machines for making continuous webs of paper of the twin-wire type paper or board consisting of two or more layers

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  • Paper (AREA)

Abstract

A kind of equipment for manufacturing fibrous cloth width, especially packing paper web, the equipment have at least one head box, screen cloth part, the press section for making fibrous cloth width further be dehydrated and the drying section for dry fiber material web for the fiber suspension fluid dewatering to be placed in by head box and for being made of fibrous cloth width fibrous suspension.Herein, equipped with starch starching part, by the starch starching part can before at least one head box, at least one head box, in the pulp jet of at least one head box and/or the latest in the screen cloth part after at least one head box, so that starch is entered in the pulp jet either generated by corresponding head box in fibrous suspension or coated on fibrous cloth width.The screen cloth part may include the former of single-layer or multi-layer.The press section includes at least one along the extended pressure area of material web traffic direction, especially at least a shoe pressure area.The drying section is configured with high effective drier.

Description

Device and method for manufacturing fibrous cloth width
The present invention relates to a kind of equipment for manufacturing fibrous cloth width, especially packing paper web, the equipment has at least one A head box, for the fiber suspension fluid dewatering to be placed in by head box and for constituting fibrous cloth width by fibrous suspension Screen cloth part, the press section for making fibrous cloth width further be dehydrated and the drying section for dry fiber material web.The present invention is also It is related to a kind of method for manufacturing fibrous cloth width, especially packing paper web.
The same with cardboard, wrapping paper constitutes the overwhelming majority of packaging material in practice.Wrapping paper be can extensively using, it is clean It is net and flexible.The facing of all types of corrugated papers, the brown paper for paper bag, traditional brown wrapping paper and even plasterboard Layer belongs to wrapping paper.It usually has higher waste paper ratio.Corrugated material is embedded in corrugated paper manufacture as middle layer It two finish coats namely applies between two layers of the inner side and outer side in corrugation paper wrapper or cardboard.It is usually by 100% Waste paper is made.Required intensity is realized by coating starch.Paper general name for manufacturing corrugated paper be corrugated paper paper or watt Stupefied paper body paper (container board).Paper is divided into " finishing paper " (brown paper and art post paperboard) and " corrugated paper ".Here, corrugated paper is divided At " corrugating medium " and " corrugated material ".Corrugating medium is the corrugated paper at least 65% semi-chemical pulp.Corrugated paper is by 100% Wasted paper material be made.Either finishing paper or corrugated paper all either single layer or double-deck manufacture.Mass area ratio exists 90 to 400g/m2In the range of.
The equipment of the above-mentioned type is known, wherein the drying efficiency in roller drying portion is limited and due to place original Because it can not possibly extend drying section in the case of, the impingement flow of highly effective drying cover form is used to dry in order to improve drying efficiency Device.It is high effective drier to impact flash dryer, wherein fibrous cloth width is at least penetrated in side by heated air jets and/or hot steam Stream impact.
Technical problem to be solved by the present invention lies in the manufacture that is suitable for for providing the above-mentioned type and especially manufactures wrapping paper The equipment of corrugated paper body paper, wherein ensuring dry matter content as high as possible, the as far as possible guiding of good material web and final In the case of the high intensity of the quality as well as possible of product, especially final products, ensure the minimum of investment and operating cost And the minimum of equipment total length.Further, it would be desirable to provide the methods suitable for manufacturing wrapping paper and especially manufacturing corrugated paper body paper.
The technical problem is special by the equipment of the technical characteristic with claim 1 and the technology with claim 20 The method of sign solves.The preferred embodiment of equipment according to the present invention and preferred design mode according to the method for the present invention It is provided by dependent claims, specification and attached drawing.
A kind of equipment according to the invention for manufacturing fibrous cloth width, especially packing paper web is provided, the equipment has At least one head box, for the fiber suspension fluid dewatering to be placed in by head box and for constituting fibre by fibrous suspension Tie up screen cloth part, the press section for making fibrous cloth width further be dehydrated and the drying section for dry fiber material web of material web. This, be equipped with starch starching part, by the starch starching part can before at least one head box, at least one head box In, in the pulp jet of at least one head box and/or the latest in the screen cloth part after at least one head box, make starch Into in the pulp jet either generated by corresponding head box in fibrous suspension or coated on fibrous cloth width.The sieve Portion includes the former of single-layer or multi-layer.The press section include it is at least one along the extended pressure area of material web traffic direction, especially At least one shoe pressure area, and the drying section is configured with high effective drier.
Based on the construction, wrapping paper and especially corrugation paper shell paper can economy namely with compared with Low investment and operation at It is locally-made.In addition, equipment in other words paper machine total length keep it is smaller so that involved paper machine hall also can It is corresponding smaller.This not only realizes relatively high dry matter content and the guiding of good material web, but also also achieves final products Higher quality and especially higher intensity.Required intensity is realized by the way that starch is added.If starch is at least partially in each stream It has been placed into before slurry case, then can for example realize starch charging in mixing basket or like.As described above, however Starch can also be placed in each head box and/or later and/or be set in screen cloth part or shaping area the latest at least partly Enter.The former for whether including single-layer or multi-layer according to screen cloth part respectively, can pass through the fiber of device fabrication single-layer or multi-layer Material web.Using at least one along the extended pressure area of material web traffic direction, formed after the press section based on higher linear load Corresponding higher dry matter content.Additionally due to drying section is also configured with high effective drier, realizes the apparent of drying efficiency and carry It is high.
The high effective drier preferably includes at least one impact flash dryer and/or at least one infrared dryer.Profit Make fibrous cloth width at least in side by heated air jets and/or hot steam jet stream or by infrared radiation with this high effective drier Load.If this high effective drier especially applies the starting in the pre-dryer section of drying section, by being consequently formed in predry Dry ruggedization when dry portion's starting, moreover it is possible to correspondingly improve the starch added in the constant portion of machine or wet end or enhancing addition The effect of agent.
Advantageous especially to also reside in, the screen cloth part includes folder net former.This folder net former is related to bilateral Double screen devices of dehydration.Here, fibrous suspension after leaving head box as compact jet stream be launched into upper wire and In gap or gap between lower wire.
According to another advantageous embodiment of equipment according to the present invention, the screen cloth part includes mixed-forming device, Double sieve parts that the mixed-forming utensil has predrainage area and abutted with the predrainage area.
In this mixed-forming device, screen device is started with single barrier, and list barrier adjoining has double barriers.Fiber is outstanding Supernatant liquid usually flows to lower wire as in fourdrinier wire.Initial dehydration is carried out in side, preferably by lower wire.It is subsequent then open The dewatering period of beginning bilateral.
Former especially may include at least substantially horizontal dewatering period.
It is advantageous in particular, in that, the press section include two along the extended pressure area of material web traffic direction, especially shoe pressure Area.Here, pressed zone especially may include double shoe press or double Nipcoflex squeezers.Double Nipcoflex squeezers Thus feature realizes higher dry matter content after the press section in particular, in that relatively high linear load.This double boots Formula press section further has continued support and passes through squeezing other than high compression shock and thus high dry matter content Portion guides the advantages of material web.
In the shoe press for the dehydration of fibrous cloth width, squeeze force does not utilize the rolling Kun of rotation and respective roller to build It is vertical, but the pressure shoes of stable state presses to the respective roller of rotation.To realize that this point, flexible plastic jacket are guided around the pressure shoes. Between pressure shoes and plastic jacket oil film is constituted for lubrication.The water squeezed out from fibrous cloth width is discharged into as in conventional press portion On at least one running felt.By the construction of pressure shoes, so-called pressure area can be considerably longer than conventional press portion, thus accordingly Ground increases the residence time of fibrous cloth width in the nip.As described above, double shoe press in addition to high compression shock and by Except this high dry matter content, the advantages of continued support is across press section guiding material web is further had.
Press section may include only two along the extended pressure area of material web traffic direction only two shoe pressure areas or only in other words Double shoe press.
Advantageous especially to also reside in, each shoe pressure area is in shoe press roll and equipped between the respective roller of polyurethane cladding Construction.Here, the polyurethane cladding of the respective roller of each shoe press preferably has the open list in 10 to 40% ranges Face.It is advantageous in particular, in that, the polyurethane cladding of the respective roller of each shoe press has 500 to 1500ml/m2Range Interior storage volume.It is possible thereby to accordingly further increase dry matter content after the press section.
Preferably, the conveyer belt of impermeable lower part is directed through second observed along material web traffic direction of press section Or the pressure area at rear.By using this transmission belt or conveyer belt in the lower position of the pressure area at the rear of press section, especially It can reduce and get damp and thus especially for 100g/m in lighter the grammes per square metre scope2Lighter grammes per square metre below improves dry matter Content.
The head box can be designed for the input respectively at least two layers of fibrous suspension.However especially It is contemplated that this embodiment of equipment according to the present invention, wherein the head box is designed for having at least three layers Fibrous suspension input respectively.
It is advantageous in particular, in that, the head box is equipped with the shim that is stretched out from the headbox nozzle of head box.Projection The shim gone out especially realizes good layering and thus good covering quality namely reduces the undyed right of art post paperboard Answer the transparency of side.
Fibrous cloth width preferably by continued support is directed to the first drying cylinder of drying section, and good material web is consequently formed and leads Draw and makes the risk mitigation that material web is torn to minimum.
Meet the actual embodiment of purpose according to the another kind of equipment according to the present invention, drying section is at least partly set Meter has steel cylinder.
Steel cylinder is had heat transfer more better than cast iron cylinder by Effect of Materials.Especially with higher dry net stressed bond In the case of, further increasing for heat transmission may be implemented.
The drying section is preferably implemented as the dry net stress of ＞ 5kN/m, to enable the equipment with the dry of ＞ 5kN/m Dry net stress is run in drying section, this is especially advantageous using steel cylinder as described above, and correspondingly Improve heat transmitting.
Equipment according to the present invention can be designed for the fibrous cloth width of manufacture multilayer or the fiber for manufacturing more interlayers Material web.
It is characterized in that according to the method for the present invention, the method is implemented by using equipment according to the present invention.
Here, according to a kind of preferred design mode according to the method for the present invention, using for manufacturing corrugated paper base web Equipment, wherein in order to form corrugated paper base web it is preferable to use fibrous material, the fibrous material is returned by 80 to 100% It receives fiber or waste paper is constituted.Thus, it is possible to for example manufacture art post paperboard or corrugated material paper.
Machine solution according to the present invention is adjusted according to preferred specific cost of investment.Here, it should also be taken into account that Situation is that the raw material particularly for manufacturing wrapping paper can include higher proportion, part in other words no more than 100% ratio Recycled fiber material.Here, in order to which wrapping paper is made using recycled fiber material as raw material, the ideal speed of service also mainly takes Certainly in the strength character of raw material.So the strength character of raw material determines velocity interval, can be with reasonable in the velocity interval Machine efficiency operation.Thus tearing number is mainly made to be maintained in the range of reasonable in economy and by the necessary pause of machine It is reduced to minimum.Since Asia is the main growing market of wrapping paper, it is contemplated that the application and can be cost-effective in the place The raw material of acquisition.Thus be suitable for equipment operation velocity interval 1100 between 1500m/min.Thus it is also contemplated that white The trend of lighter grammes per square metre in paperboard and corrugated material.
In terms of the ideal machine solution for special boundary condition, it may be particularly advantageous to use double-layer headbox In the case of using single-layer type former scheme manufacture double-deck product, such as art post paperboard.Here, the shim stretched out realizes Good layering and the thus transparency of good covering quality namely the undyed respective side for reducing art post paperboard.It has shown , it is combined with lighter grammes per square metre by speed appropriate, it is no longer necessary to press from both sides net former, and required life using hobboing cutter Producing rate also can utilize the cutting blade clip net former with lower dehydration power or yield to realize.This cutting blade clip net former Can especially it be implemented with horizontal frame mode, to be conducive to the use of material pulling equipment by frame.With mixed-forming Device is compared, and is conducive to page molding according to the higher portrait orientation of scheme, so as to utilize maximum speed ability.Thus by The intensity transversely of adverse effect can be mended by additive, such as starch or the fibrous material of special high value in other words It repays.The additive of enhancing, such as starch can be added into raw material at this.Or it is described addition before the headbox, flowing Enter pulp jet in slurry case or is entered in forming part by the form of starch injection pipe.This is penetrated in head box or in paper pulp It can be realized by the head box of multilayer in stream.
In equipment in other words the continuing to run with of paper machine, the press section with high pinch shock is advantageous, so as to one Aspect realizes higher dry matter content, and on the other hand realizes higher page compacting.Both improve page intensity or The service ability or running ability of wet strength and thus machine.Thus advantageously by least one nip design be shoe splenium. Double shoe press can suitably be used.This double shoe press contain in addition to high compression shock and thus high dry matter The advantages of continued support is across press section guiding material web is further had except amount.
Suitable variant scheme in lighter the grammes per square metre scope is, biography is used in the lower second position of press section Thus defeated band is reduced and is got damp and thus especially for 100g/m2Lighter grammes per square metre below improves dry matter content.
In addition, the pressure area of simple felt is advantageous in terms of humidity cross direction profiles.It is good on the end of press section Humidity cross direction profiles realize uniform material web tensile properties in the cross machine direction, thus improve again in the critical of drying section Service ability in output area or running ability.Avoid psychrometric difference and thus caused material web stress difference and drag fold.
In fibrous cloth width passes through the continuing to run with of drying section, hot-fluid as high as possible is advantageous in principle, is thus carried The dry required length of high drying efficiency and at the same time reduction and the length for thus also reducing entire machine and machine workshop Degree.However it should be noted herein that the closing on material web surface and thus can be brought in the excessively high hot-fluid of the section start of drying section It is unfavorable for drying efficiency and even damages the page.Accordingly may and rational heating power depend on raw material and Grammes per square metre.Special wrapping paper is less sensitive herein and can be loaded with relatively steep heating curves.
And steel cylinder can be used herein for this reason, there is the heat more higher than cast iron cylinder caused by material to pass It leads.In addition this can also be combined with higher dry net stress.Here, higher net stress realizes the further of heat transmission It improves.The equipment is advantageously run, to make the dry net stress in the range of 5 to 8kN/m.Here, the effect is also not The adverse effect in quality can be generated to paper, especially wrapping paper.In addition, the jointed dry net of common tool remain to bear it is described Stress.It is finally, still relatively mild for other component, the expense increase of such as dimensioned of Nets drawing equipment, regulating part and roller, And it is economically reasonable compared with using drying section more rapidly, more efficient.
In addition, when pre-dryer section originates it is violent dry for be added the starch in the constant portion and wet end of machine or The effect of other enhancing additives is advantageous.The effect can be further enhanced purposefully, i.e., in the starting of pre-dryer section Place uses high effective drier, such as impingement flow drying hood.Such as two to six drying hoods are economically and paper technology herein On be reasonable, so as in the case that investment and the suitable increased effect of realization intensity of operating cost.
The present invention more illustrate in detail below according to embodiment combination attached drawing, in the accompanying drawings：
Fig. 1 shows the example of the equipment according to the present invention for manufacturing fibrous cloth width, particularly for manufacturing packaging paper web The schematic diagram of property embodiment, and
Fig. 2 shows the schematic diagrames of the screen cloth part of another illustrative embodiments of equipment according to the present invention.
Fig. 1 shows showing for the equipment 10 according to the present invention for manufacturing fibrous cloth width, particularly for manufacturing packaging paper web The schematic diagram of example property embodiment.
The equipment 10 includes at least one head box 12, for the fiber suspension fluid dewatering to be introduced by head box 12 And for constituting the screen cloth part 14 of fibrous cloth width, for the press section 16 of fibrous cloth width being further dehydrated by fibrous suspension With the drying section 18 for dry fiber material web.In addition up- coiler 20 can also be connected with after drying section 18, for that will do Fibrous cloth width after dry, preparing completion is rolled.
Equipped with starch starching part, by the starch starching part before at least one head box 12, at least one stream It starches in the pulp jet of case 12 and/or so that starch is entered fiber in the screen cloth part 14 after at least one head box 12 the latest and hang In the pulp jet formed in supernatant liquid or by each head box 12 or coated on fibrous cloth width.
Screen cloth part 14 includes the former of single-layer or multi-layer.Press section 16 prolongs including at least one along material web traffic direction L Long pressure area 22, an especially at least shoe pressure area.Drying section 18 is configured with (unshowned) high effective drier.
Since screen cloth part 14 includes the former of single-layer or multi-layer, the fibrous cloth width of single-layer or multi-layer can be made.It utilizes Each extended pressure area 22 accordingly improves the residence time of fibrous cloth width in the nip, and thus being formed in press section 16 Corresponding higher dry matter content.The drying efficiency of drying section is further improved using high effective drier.
May include at least one impact flash dryer and/or at least one infrared dryer in this high effective drier.Punching It is high effective drier to hit flash dryer, wherein fibrous cloth width is at least rushed in side by heated air jets and/or hot steam jet stream It hits.
As according to Fig. 1, screen cloth part 14 includes mixed-forming device in the case, and the mixed-forming utensil has pre- de- Pool 26 and the double sieve parts 24 being connect with predrainage area.In this mixed-forming device, screen device is started with single barrier, institute State single double barriers of barrier adjoining.Fibrous suspension usually flows to lower wire as in fourdrinier wire.Initial dehydration side, This is carried out by lower wire.Dewatering period that is subsequent then starting bilateral.In addition as according to Fig. 1, former includes at least basic The dewatering period of upper level.
Press section 16 includes two in the case along the extended pressure areas of material web traffic direction L, especially shoe pressure area. This, press section 16 especially may include double shoe press or double Nipcoflex squeezers.The spy of double Nipcoflex squeezers The linear load in particular, in that relatively high is levied, thus realizes higher dry matter content after the press section.This double shoe Press section further has continued support other than high compression shock and thus high dry matter content and passes through press section Material web guiding the advantages of.
Squeeze force is not rolling Kun and respective roller using rotation by structure in the shoe press being dehydrated for fibrous cloth width It builds, but the pressure shoes of stable state presses to the respective roller of rotation.Outer cover flexible is guided around pressure shoes.Pressure shoes and outer cover flexible it Between for lubrication build oil film.The water squeezed out from fibrous cloth width is discharged into as in conventional press portion at least one operation Felt on.By the construction of pressure shoes, so-called pressure area can be considerably longer than conventional press portion, thus correspondingly increase fiber material The residence time of width in the nip.
Press section 16 may include only two along the extended pressure areas 22 of material web traffic direction L or only two in the case Shoe pressure area or only double shoe press.
Each shoe pressure area 22 can be in shoe press roll and equipped with being constituted between the respective roller of polyurethane cladding.Here, The polyurethane cladding of the respective roller of each shoe press has the open surface and especially in the range between preferably 10 to 40% 500 to 1500ml/m2In the range between storage volume, thus, it is possible to further increase the dry matter content after press section.
The conveyer belt 30 of impermeable lower part can be directed through press section 16 along the of material web traffic direction L observation Two or last pressure area 22.By using this transmission belt or conveyer belt in the lower position of the last pressure area 22 of press section 16 30, it is particularly possible to reduce and get damp and thus especially for 100g/m in lighter the grammes per square metre scope2Lighter grammes per square metre below carries High dry content.
Head box 12 can be configured to the difference for the fibrous suspension for at least two layers or especially having there are three layer Input.
In addition, head box 12 can be equipped with the shim stretched out from the headbox nozzle of head box.The separation stretched out Piece especially realizes good layering and thus good covering quality namely especially reduces the undyed respective side of art post paperboard Transparency.
Fibrous cloth width can by continued support be directed to the first drying cylinder 30 of drying section, and good material web is consequently formed It guides and makes the risk mitigation that material web is torn to minimum.Drying section 18 can at least partly be designed as steel cylinder.Steel cylinder is by material Influence with than cast iron cylinder with better heat conductivity.In addition, drying section can be implemented to answer for the dry net of ＞ 5kN/m Power, to enable dry net especially to be guided around steel cylinder with corresponding higher stress.By using steel cylinder can thus with more High dry net stress further increases hot transmission in the case of being combined.
Equipment 10 can especially implement the fibrous cloth width for manufacturing multilayer and/or more interlayers.
Equipment 10 is particularly suitable for manufacture packaging paper web, wherein the equipment is particularly useful for manufacture corrugated paper base web. Here, especially using fibrous material, the fibrous material fine by 80 to 100% recycling to form this corrugated paper base web Dimension or waste paper composition.
Fig. 2 shows the schematic diagram of the screen cloth part 14 of another illustrative embodiments of equipment 10 according to the present invention, institutes It states equipment main distinction compared with device according to figure 1 to be only that, screen cloth part 14 is embodied as folder net former, and thus lacks Predrainage area, and thus double sieve parts 24 are set up directly on head box 12.This external equipment 10 at least can also be also embodied as Equipment as described according to Fig. 1.Identical reference numeral is configured for mutual corresponding component.
List of numerals
10 equipment
12 head boxs
14 screen cloth parts
16 press sections
18 drying sections
20 up- coilers
22 pressure areas, shoe pressure area
24 pairs of sieve parts
26 predrainage areas
28 conveyer belts
30 drying cylinders

Claims (16)

1. a kind of equipment (10) for manufacturing fibrous cloth width, especially packing paper web, the equipment has at least one head box (12), it is used for the fiber suspension fluid dewatering to be placed in by head box (12) and for constituting fibrous cloth width by fibrous suspension Screen cloth part (14), the press section (16) for making fibrous cloth width further be dehydrated and for the drying section of dry fiber material web (18), wherein be equipped with starch starching part, by the starch starching part can before at least one head box (12), extremely In a few head box (12), in the pulp jet of at least one head box (12) and/or the latest at least one head box (12) in the screen cloth part (14) after, the paper pulp that starch enters in fibrous suspension or generated by corresponding head box (12) is made to penetrate In stream or coated on fibrous cloth width, the screen cloth part (14) includes the former of single-layer or multi-layer, the press section (16) Including at least one along material web traffic direction (L) extended pressure area (22), an especially at least shoe pressure area, and the drying Portion (18) is configured with high effective drier.
2. equipment according to claim 1, which is characterized in that the high effective drier includes at least one impingement flow drying Device and/or at least one infrared dryer.
3. equipment according to claim 1 or 2, which is characterized in that the screen cloth part (14) includes folder net former.
4. equipment according to claim 3, which is characterized in that the screen cloth part (14) includes mixed-forming device, described mixed Double sieve parts (24) that synthesis type utensil has predrainage area (26) and abutted with the predrainage area.
5. the equipment according at least one of the claims, which is characterized in that former includes at least substantially water Flat dewatering period.
6. the equipment according at least one of the claims, which is characterized in that the press section (16) includes two Along the extended pressure area of material web traffic direction (L), especially shoe pressure area.
7. the equipment according at least one of the claims, which is characterized in that each shoe pressure area (22) is in shoe It is constructed between pressure roller and respective roller equipped with polyurethane cladding.
8. equipment according to claim 7, which is characterized in that the polyurethane cladding of the respective roller of each shoe press has There is the open surface in 10 to 40% ranges.
9. equipment according to claim 7 or 8, which is characterized in that the polyurethane of the respective roller of each shoe press covers Layer has 500 to 1500ml/m2Storage volume in range.
10. the equipment according at least one of the claims, which is characterized in that the head box (12) is designed for With at least two layers and especially there are three the inputs respectively of the fibrous suspension of layer for tool.
11. the equipment according at least one of the claims, which is characterized in that the head box (12) is equipped with from stream The shim that the headbox nozzle of slurry case stretches out.
12. the equipment according at least one of the claims, which is characterized in that the drying section is embodied as ＞ 5kN/ The dry net stress of m.
13. the equipment according at least one of the claims, which is characterized in that the equipment is more designed for manufacturing The fibrous cloth width of layer.
14. the equipment according at least one of the claims, which is characterized in that the equipment is more designed for manufacturing The fibrous cloth width of interlayer.
15. a kind of method for manufacturing fibrous cloth width, especially packing paper web, using according to any one of the claims institute The equipment (10) stated implements the method.
16. according to the method described in claim 1, it is characterized in that, using the equipment (10) for manufacturing corrugated paper base web, Wherein, in order to form corrugated paper base web it is preferable to use fibrous material, the fibrous material by 80 to 100% recycled fiber or Waste paper is constituted.
CN201680068171.5A 2015-11-30 2016-10-25 Device and method for manufacturing fibrous cloth width Pending CN108291365A (en)

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DE102015223664.1 2015-11-30
DE102015223664.1A DE102015223664A1 (en) 2015-11-30 2015-11-30 DEVICE AND METHOD FOR PRODUCING A FIBROUS WEB
PCT/EP2016/075623 WO2017092933A1 (en) 2015-11-30 2016-10-25 Device and method for the production of a fibrous web

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