CN102712097A - Method for producing cardboard panels or cardboard-panel strands from waste paper - Google Patents

Method for producing cardboard panels or cardboard-panel strands from waste paper Download PDF

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Publication number
CN102712097A
CN102712097A CN201080042381XA CN201080042381A CN102712097A CN 102712097 A CN102712097 A CN 102712097A CN 201080042381X A CN201080042381X A CN 201080042381XA CN 201080042381 A CN201080042381 A CN 201080042381A CN 102712097 A CN102712097 A CN 102712097A
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CN
China
Prior art keywords
waste paper
fiber
cardboard
described method
glued together
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Pending
Application number
CN201080042381XA
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Chinese (zh)
Inventor
M·舍勒
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.)
Simperkampu Maschinen und Anlagenbau & Co KG GmbH
Siempelkamp Maschinen und Anlagenbau GmbH and Co KG
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Simperkampu Maschinen und Anlagenbau & Co KG 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.)
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Publication date
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Publication of CN102712097A publication Critical patent/CN102712097A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/007—Manufacture of substantially flat articles, e.g. boards, from particles or fibres and at least partly composed of recycled material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N1/00—Pretreatment of moulding material

Abstract

The invention relates to a method for producing cardboard panels or cardboard-panel strands from waste paper, wherein waste paper is comminuted into waste-paper fibres, wherein the waste-paper fibres are glued using a bonding agent, wherein a fibre mat is produced from the glued waste-paper fibres, and wherein the fibre mat is compressed in a continuous press, using pressure and heat, to form a cardboard panel or a cardboard-panel strand.

Description

Be used for making the cardboard method of paperboard strip in other words by waste paper
Technical field
The present invention relates to a kind of being used for makes the cardboard method of paperboard strip in other words by waste paper.
Background technology
The manufacturing of cardboard or millboard is similar with papermaking in practice.At first from wood raw material, obtain cellulose, it is ground into fiber and grinds to form moisture slurry.In the case, also recycle waste paper, but it can only be added certain share usually.The moisture slurry of being made by cellulose is placed on the sieve shape tape loop and is further processed into cardboard or millboard.The shortcoming of known manufacturing approach is that the use amount of water is huge because be placed into sieve with on slurry constitute greatly by water.This causes high cost and not environmental protection.This point is equally applicable to be basic papermaking and make cardboard or millboard by waste paper with wood materials.
Known when making the timber plate, photoxylin is merged and in continuous forcing press, it is pressed into the timber plate with binding agent.Usually can under the situation of not adding water, process at this.Development by known in the industry of timber plate does not exert an influence to the manufacturing of cardboard so far.
Summary of the invention
Task of the present invention is to provide a kind of method, and this method allows low-cost and makes cardboard paperboard strip in other words by waste paper economically.
In order to solve this task, the present invention proposes a kind of being used for and makes the cardboard method of paperboard strip in other words by waste paper, wherein, waste paper is ground into waste paper fibre; With binding agent waste paper fibre is glued together; Make fiber mat by the waste paper fibre that is glued together; And in continuous forcing press, under the condition of working pressure and heat, fiber mat is pressed into cardboard paperboard strip in other words.
Particularly preferably under the situation that does not make water waste paper being pulverized is waste paper fibre, and this pulverizing is for example carried out in one or more graters.At this, can use one or more hammer-mills and/or basket grater.
In this present invention from such understanding: as abandon traditional approach with water preprocessing waste paper, can economy, low cost and environmental protection ground makes cardboard paperboard strip in other words by waste paper.Replace, waste paper fibre glued together with binding agent, this point with by known similar in the timber plate manufacturing.For example can use by known synthetic resin, for example urea resin, melmac, phenolic resins in MDF (medium density fibre board (MDF)) manufacturing as binding agent.As alternative, also can use isocyanates.Also can be chosen in the manufacturing of papermaking and cardboard in principle as the known binding agent of adhesive; For example resinoid bond and the resin sizing material dispersoid that can use usually, for example alkyl ketene dimer (AKD) dispersoid or alkenyl succinic anhydride (ASA) or the polymeric gel dispersoid that constitutes by styrene-propene acid or styrene-maleic acid, or polyurethane dispersoid or starch, dextrin, polyamine or acrylic acid ester.In a word, in the present invention, basically through mechanical preprocessing by the fiber that obtains in the waste paper can be simply, be squeezed into cardboard paperboard strip in other words to low cost and environmental protection.
Preferably by the fiber that obtains in the waste paper be pressed into thickness for 3mm at the most, preferred 0.1mm to 3mm, for example 0.1mm to the fiberboard of 1.5mm fiber lath in other words.The cardboard weight per unit area of paperboard strip in other words is preferably 0.1kg/m 2To 3kg/m 2, for example 0.1kg/m 2To 1.5kg/m 2
The fiber gummed can carry out during pneumatic transportation.At this, fiber is pneumatically carried through for example conveyance conduit and in the transportation of conveyance conduit to add sizing material through nozzle to it.In a kind of flexible program, there is this possibility, that is, in (vertical) blanking pit shaft, waste paper fibre glued together.Supplying with at this fiber also is to carry out through the fiber service with pneumatic mode.The fiber discharge pipe feeds in upper area in the blanking pit shaft that vertically is provided with.A plurality of nozzles that are used for the fiber gummed of being discharged by the fiber discharge pipe and get into the blanking pit shaft are set in the upper area of blanking pit shaft or above the blanking pit shaft.At this, the bonding device with a plurality of nozzles can be set in bond zone between fiber discharge pipe and blanking pit shaft.Can be provided for collecting and transporting the gathering-device of the fiber that is glued together in blanking pit shaft downstream.What this gathering-device can have that ventilative being used for collect and transport the conveyer belt of fiber and be arranged on conveyer belt below is used to pass the aspirator of conveyer belt from blanking pit shaft draw air.Conveyer belt is configured to sieve band or filter bag.Therefore, that discharge and fiber that and then glued together arrives on the conveyer belt via the blanking pit shaft by the fiber discharge pipe.The fiber that is glued together is parked on this conveyer belt.The sizing material that does not utilize that in the blanking pit shaft, descends in case of necessity arrives and is positioned on the fiber on the conveyer belt, can guarantee sizing material utilization completely thus.This blanking pit shaft bonding device that is used for wood-fibred is for example disclosed by DE102006058625B3, DE 102006058626B3 and DE 102006058627B3.
Selectively; In continuous mixing device, fiber is glued together; This blender has at least one mixing chamber and one or more and is fixed on the blend tool on the mixer shafts of rotation, and said blend tool mixes fiber and on throughput direction, carries and pass through mixing chamber with binding agent.This mixing arrangement is also referred to as the gummed blender.Mixing chamber is configured to columniform tube usually, fixes but this tube does not rotate usually.Mixing chamber has at least one charge door that is used for fiber and is used for discharge port and a plurality of binding agent supply port that is used to supply with binding agent of fiber-binding agent-mixture with at least one.Binding agent is supplied with and can be carried out through blend tool itself, at this mixer shafts that is configured to hollow shaft is set usually.But binding agent is supplied with also and can be carried out through stretching into the inner supply pipe of mixing chamber.
Test shows: scattering when producing the fiber mat that is pressed into plate subsequently on the ribbon conveyer when scatter head by screening, can realize having the thickness of hope and the cardboard of good characteristic especially.Head in MDF makes open (referring to WO 03/053642A1) is scattered in this screening.Now, the present invention recognizes: this screening is scattered head and also can be advantageously applied in the cardboard manufacture process.Screening is scattered head and is comprised a sieve bottom surface and a plurality of to be arranged on distribution member, the for example agitating element of top, sieve bottom surface to determining deviation, and it has given mixing width.Preferably scatter head and have a plurality of row that on the direct of travel of throughput direction or distribution ribbon conveyer, one after the other are provided with successively, they have a plurality of agitating elements that scatter the direct of travel setting of ribbon conveyer transverse to throughput direction in other words respectively.The agitating element of one row can rotate on same direction, and the agitating element of each adjacent columns is preferably with opposite direction rotation.Mixing width and two adjacent row that the spacing of two adjacent agitating elements in one row can be substantially equal to agitating element are provided with transverse to throughput direction or band direct of travel mutual dislocation ground with intended size.The fact of scattering particular importance in the head in this screening is: scatter ribbon conveyer with the opposed side in sieve bottom surface at least one suction box is set.Preferably a plurality of suction box can be set.Scatter head by this screening and always can produce high-quality fiber mat, can squeeze out high-quality cardboard by it.Particularly advantageous is to scatter head by this screening can sift out impurity.Can produce special uniform fibers pad generally.The preferred distribution head that uses is particularly suitable in the distribution process, influencing the mechanical property of fiberboard, for example anti-fracture strength or bending rigidity.Therefore exist this maybe, that is, scatter fiber mat like this, make mechanical property on the vertical and horizontal direction of fiberboard, for example anti-fracture strength and/or bending rigidity are substantially the same.Also can scatter out fiberboard like this, make mechanical property on the vertical and horizontal direction of fiberboard, anti-fracture strength and/or bending rigidity changes and be different therefore for example, for example with 2: 1 ratio, preferred 1.5: 1 ratio at the most at the most.Therefore, can make plate through scattering targetedly, make its anti-fracture strength and/or bending rigidity in a longitudinal direction than in a lateral direction anti-fracture strength and/or 2 times greatly at the most of bending rigidities, preferably at the most 1.5 times, for example be approximately 1.5 times.
Compressed fibre pad in the forcing press of continuous operation.Can refer to the bilayer zone forcing press at this, it has heated upper extrusion board and in the extruding bottom, has heated lower extrusion plate and in extruding top and extruding bottom, have continued circling in extruding top steel compressive zone.This steel compressive zone is furnished with rolling element mechanism between itself and stripper plate situation lower support is on stripper plate.Usually, the hydraulic cylinder piston apparatus is set, it is to upper extrusion board and/or lower extrusion plate acting.Can be under the temperature of pressure and 120 ℃ to 250 ℃ of 15 to 50 crust the extrusion fiber pad.But also can use the forcing press of the continuous operation of other version in principle.
By the cardboard of method manufacturing of the present invention in other words paperboard strip can reprocess, especially be reprocessed into packing material well.The punching press well of this material, fluting, folding, crooked or otherwise moulding.For example more neat bending position can be produced, high-quality carton can be produced thus.Owing to can process with few water yield, can be low-cost and economy and environmental protection ground carry out thus so make.
Description of drawings
Next by the only embodiment in the accompanying drawing the present invention is detailed.Accompanying drawing is following:
Fig. 1 is the method block diagram of schematic high simplified;
Fig. 2 is the side view that is used for according to the distribution head of the preferred use of the method for Fig. 1; With
Fig. 3 is according to the vertical view of the technical scheme of Fig. 2 (partial view).
The specific embodiment
Show to Fig. 1 high simplified according to of the present invention being used for and make the cardboard method of paperboard strip in other words by waste paper.In (machinery) first method step b, waste paper a is pulverized, is promptly made waste paper fibre by waste paper.Under the situation of not adding water, waste paper is processed into waste paper fibre at this.Can sift out impurity, pocket-handkerchief or analog in case of necessity.The waste paper fibre of " drying " of manufacturing is glued together (method step c) in bonding device in this way.For this reason, can during pneumatic fiber transport, carry out for example blanking pit shaft gummed of traditional gummed.And then the fiber that is glued together is transferred to the fiber feed bin usually.Can in method step d, scatter head in other words therefrom and on the distribution ribbon conveyer, scatter out fiber mat by dissemination apparatus.By the fiber mat that is constituted by the fiber that glued together where necessary by precommpression and and then in the forcing press of continuous operation, be squeezed into cardboard paperboard strip (method step e) in other words.Because what from the forcing press of continuous operation, discharge is continuous often paperboard strip, so reprocess (method step f) usually.Cardboard paperboard strip in other words for example can be reeled or is divided into plate.
The manufacturing of fiber mat (method step d) is especially preferably undertaken by screening distribution head, and it is for example by open among the WO 03053642A1.For this reason referring to Fig. 2 and 3.
Can see fiber feed bin 2 among Fig. 2 with metering units 3.Metering units 3 mainly is with 4 to constitute with a plurality of meterings and/or plucker roller 5 by a metering.At this, waste paper fibre is worn 6 through feed bin band or branch and is flowed to feed bin or metering and/or plucker roller 5, and these meterings and/or plucker roller mainly make and scatter the shredding of material compacting block.In Fig. 2 above metering band schematically illustrated feed bin charging system.The metering band feed bin discharge rate of metering units in other words mainly changes through reducing or improve the speed of measuring with 4.But feed bin or metering units can also be configured to other configuration.In any case, scatter material and spread to one from feed bin 2 or metering units 3 and be arranged in the distribution 7 of scattering ribbon conveyer 1 top.Can produce fiber mat M by scattering 7 scattering on the ribbon conveyer 1 by the waste paper fibre that is glued together.This point is especially illustrated by Fig. 2.Unshowned continuous forcing press or preload pressure machine are positioned at and scatter after 7.
Scatter 7 and be configured to have a sieve bottom surface 8 and a plurality of screenings with the agitating element 9 that is arranged on sieve 8 tops, bottom surface to determining deviation and scatter 7, agitating element 9 has given mixing width B.At this, agitating element 9 is arranged in the housing 10, and its housing bottom side constitutes sieve bottom surface 8, perhaps sieves bottom surface 8 and is arranged on the housing bottom side of this housing.According to Fig. 3, to scatter 7 and have a plurality of row 11 that on throughput direction F, one after the other are provided with successively, they have a plurality of agitating elements 9 that are provided with transverse to throughput direction F respectively.At this, throughput direction F representes to scatter the direct of travel of ribbon conveyer 1, promptly is with direct of travel, and this direction can be equivalent to measure the direct of travel with 4 basically.Each agitating element has at least one respectively can be around the stirring vane 13 of axle 12 rotations that are approximately perpendicular to 8 settings of sieve bottom surface, and it has given mixing width B.These stirring vanes 13 for example constitute respectively one with and shaft-like, and have rectangle or square cross section.Other stirring vane configuration also is possible.Each stirring vane 13 rotates in a common plane, and this plane is arranged essentially parallel to 8 extensions of sieve bottom surface and abuts against sieve 8 tops, bottom surface.At this, stirring vane 13 is configured to twayblade, and it has the total length of blade that is equivalent to mixing width B.Arrow through among Fig. 3 is represented: the agitating element 9 in the row 11 rotates on same direction when equipment moves.And the agitating element 9 of each adjacent columns 11 rotates when equipment moves in the opposite direction.The spacing A of two adjacent agitating elements 9 in one row 11 is substantially equal to the mixing width B of agitating element, and wherein the spacing A of agitating element 9 representes its spacing A between 12.In addition, as can be seen from Figure 3, two adjacent row 11, i.e. first and second row for example are provided with intended size v mutual dislocation ground transverse to throughput direction F.This size of these row V that misplaces in other words is substantially equal to half the mixing width, and therefore the first and the 3rd row have the setting of mutual dislocation ground in alignment ground again.In the case the regulation: the spacing C of two adjacent row 11 with intended size less than mixing width B.In Fig. 3, also can find out this point.
In this embodiment; Scatter ribbon conveyer 1 with sieve bottom surface 8 opposed sides on, promptly scattering ribbon conveyer 1 below at least one suction box 15 is set, it produces and points to the air-flow that scatters ribbon conveyers 1 from sieve bottom surface 8 and will scatter therefore that material is drawn into the distribution ribbon conveyer or sieve is with on 1.Shown in Fig. 2, a plurality of suction box 15 that scatter ribbon conveyer 1 below that are positioned at are set, be meant a plurality of suction box 15 that on the band direct of travel, one after the other are provided with successively at this, its difference substantial lateral is extended in the band direct of travel.On each single suction box 15, connect one or more suction channels, the swabbing action of each suction channel or suction box 15 for example can be adjusted through choke valve.Have this possibility at this, that is, needs can adjusted and be adapted to the swabbing action of suction box 15 or whole pumping equipment on length and/or width.At last, from Fig. 2 and 3, can find out: scatter 7 and have a discharge device 16 that is used for residual fiber or thick material and excess of material that extends transverse to the throughput direction F that scatters ribbon conveyer 1 in the end.This discharge device is only schematically illustrated and be configured to discharge screw rod 16 in this embodiment.
In addition; Between per two adjacent agitating elements 9 of row 11 and scattering in the marginal zone of head partition wall or sidewall 17 are being set respectively, they are listed as a row ground from one and extend and constitute the transfer passage 18 that extends at throughput direction F basically in the whole length of scattering 7 basically.At this, the shape adaptation of partition wall 17 is in the shape and the position of agitating element 9, and therefore, because the row of dislocation layout, as if transfer passage 18 constitutes waveform on vertical view snakelike in other words.Therefore, scatter and expect waveform ground conveying in vertical view in each single transfer passage 18, make not only all producing distribution material distribution especially uniformly on the throughput direction F but also on transverse to the direction of throughput direction F.In addition, in Fig. 3, illustrate partly: in stirring 19 zones, face gap, cover camber member 20 and be connected on the partition wall 17, cover camber member 20 and hide basically or the stirring face of being full of gap 19.
Said distribution head is good especially to be fit to be used for adjusting targetedly plate mechanical property, anti-fracture strength or the bending rigidity on the vertical and horizontal direction for example.

Claims (12)

1. be used for making the cardboard method of paperboard strip in other words, wherein, waste paper be ground into waste paper fibre by waste paper; With binding agent waste paper fibre is glued together; Make fiber mat by the waste paper fibre that is glued together; And in continuous forcing press, under the condition of working pressure and heat, fiber mat is pressed into cardboard paperboard strip in other words.
2. method according to claim 1 wherein, is pulverized waste paper under the situation that does not make water, this pulverizing is for example carried out in hammer-mill and/or basket grater.
3. method according to claim 1 and 2, wherein, the waste paper fibre that in continuous forcing press, will be glued together be pressed into thickness for 3mm at the most, be preferably 0.1mm to 3mm, for example be the fiberboard of 0.1mm to 1.5mm fiber lath in other words.
4. according to the described method of one of claim 1 to 3, wherein, in continuous forcing press, waste paper fibre being pressed into weight per unit area is 0.1kg/m 2To 3kg/m 2, preferred 0.1kg/m 2To 1.5kg/m 2Fiberboard fiber lath in other words.
5. according to the described method of one of claim 1 to 4; Wherein, Scatter head by screening and on the screening ribbon conveyer, produce fiber mat by waste paper fibre; Said screening is scattered head and is comprised a sieve bottom surface and a plurality of to be arranged on distribution member, the for example agitating element of top, sieve bottom surface to determining deviation, wherein, preferably one or more suction box is set at this distributions ribbon conveyer with sieving on the opposed side in bottom surface.
6. according to the described method of one of claim 1 to 5, wherein, use synthetic resin especially urea resin, melmac or phenolic resins, or isocyanates is as binding agent.
7. according to the described method of one of claim 1 to 5; Wherein, use alkyl ketene dimer (AKD) dispersoid, alkenyl succinic anhydride (ASA), the polymeric gel dispersoid that constitutes by styrene-propene acid or styrene-maleic acid or polyurethane dispersoid or starch or dextrin or polyamine or acrylic acid ester as binding agent.
8. according to the described method of one of claim 1 to 7, wherein, in the pneumatic transportation process, for example in conveyance conduit, waste paper fibre is glued together.
9. method according to claim 8; Wherein, With the fiber gummed, fiber is pneumatically flowed to this blanking pit shaft and blanking pit shaft and is had nozzle to be used for being glued together by the discharge of fiber discharge pipe and fiber that get into the blanking pit shaft in vertical blanking pit shaft.
10. according to the described method of one of claim 1 to 9; Wherein, In (continuous) blender, fiber is glued together; This blender has at least one mixing chamber and one or more and is fixed on the blend tool on the mixer shafts of rotation, and said blend tool mixes fiber and on throughput direction, carries through mixing chamber with binding agent.
11. according to the described method of one of claim 1 to 10, wherein, scatter out fiber mat like this, make that for example anti-fracture strength of mechanical property and/or the bending rigidity on the vertical and horizontal direction of fiberboard is substantially the same.
12. according to the described method of one of claim 1 to 10; Wherein, Scatter out fiber mat like this; Make mechanical property on the vertical and horizontal direction of fiber mat, for example anti-fracture strength and/or bending rigidity change, for example with 2: 1 ratio, preferably 1.5: 1, about 1.3: 1 to 1.5: 1 ratio for example at the most at the most.
CN201080042381XA 2009-09-23 2010-09-23 Method for producing cardboard panels or cardboard-panel strands from waste paper Pending CN102712097A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE200910042362 DE102009042362A1 (en) 2009-09-23 2009-09-23 Process for the production of cardboard boards or cardboard board strands from waste paper
DE102009042362.1 2009-09-23
PCT/EP2010/064037 WO2011036201A1 (en) 2009-09-23 2010-09-23 Method for producing cardboard panels or cardboard-panel strands from waste paper

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CN102712097A true CN102712097A (en) 2012-10-03

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CN (1) CN102712097A (en)
DE (1) DE102009042362A1 (en)
WO (1) WO2011036201A1 (en)

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DE102011120630A1 (en) 2011-12-09 2013-06-13 Aerocycle Gmbh Process for recycling waste paper
CN106436430A (en) * 2015-08-11 2017-02-22 玖龙纸业(天津)有限公司 High-strength kraft linerboard manufacturing method
DE102017103848A1 (en) 2017-02-24 2018-08-30 Voith Patent Gmbh Method and device for producing a fibrous web in a paper machine
DE102017103847A1 (en) 2017-02-24 2018-08-30 Voith Patent Gmbh Method and device for producing a fibrous web in a paper machine

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US3736221A (en) * 1971-07-29 1973-05-29 K Evers Structural shape based on waste paper and method of providing the same
GB1471498A (en) * 1975-06-10 1977-04-27 Evers K Method of forming paper fibres into a desired shape
EP0262898A1 (en) * 1986-09-26 1988-04-06 Howard City Paper Company Apparatus and process for making pressboard from poly-coated paper
EP0409525A2 (en) * 1989-07-21 1991-01-23 Fortifiber Corporation Apparatus and method for making pressboard from poly-coated paper using relative movement of facing webs
US5611882A (en) * 1993-08-11 1997-03-18 Phenix Biocomposites, Inc. Board stock and method of manufacture from recycled paper
WO2003053642A1 (en) * 2001-12-21 2003-07-03 Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg Dispersion system for dispersing material, especially wood chips, wood-fibre or similar, on a dispersing conveyor belt
DE102006058625B3 (en) * 2006-12-13 2008-06-05 Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg Fibers gluing system for producing e.g. medium density fiberboard plates, has nozzles that are transferred in gluing operation from standby into operating positions to glue fibers and transferred during operation interruption
WO2008109158A2 (en) * 2007-03-07 2008-09-12 Sonoco Development, Inc. Methods for converting used paper material into structural panels, and structural panels made thereby

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Application publication date: 20121003