CN101622399A - Structural element for a functional member of a headbox in a web-manufacturing machine, functional member and headbox made thereof, and associated methods - Google Patents
Structural element for a functional member of a headbox in a web-manufacturing machine, functional member and headbox made thereof, and associated methods Download PDFInfo
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- CN101622399A CN101622399A CN200880006666A CN200880006666A CN101622399A CN 101622399 A CN101622399 A CN 101622399A CN 200880006666 A CN200880006666 A CN 200880006666A CN 200880006666 A CN200880006666 A CN 200880006666A CN 101622399 A CN101622399 A CN 101622399A
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- 229920002635 polyurethane Polymers 0.000 claims description 6
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Images
Classifications
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- 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
-
- 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
- D21F1/022—Means for injecting material into flow within the headbox
-
- 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
- D21F1/026—Details of the turbulence section
-
- 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
Landscapes
- Paper (AREA)
- Slide Fasteners, Snap Fasteners, And Hook Fasteners (AREA)
- Making Paper Articles (AREA)
Abstract
The present invention relates to a structural element (17A, 17B, 17C) for a functional member (11) in a headbox of a web-manufacturing machine, the structural element comprising an integral block (1) comprising therein a plurality of channels (2) defining flow channels for a paper stock, said stock flow channels extending through the integral block from a first upstream end (IA) to a second downstream end (IB) of the block. According to the invention, the structural element comprises at least one gap-forming element (13) which is arranged to ensure a gap (14) of a predetermined width between the block of the structural element and a neighbouring element.
Description
Technical field
The present invention relates to a kind of structural detail that is used for the head box functional part of the preamble according to claim 1 and the head box that comprises this functional part.The invention still further relates to according to the structural detail that is used for head box of the preamble of claim 17 and the method that is used to make this structural detail.
Background technology
As known in the prior art, in the web-manufacturing machine of paper machine or other type, usually with slurry or fibre suspension from a slurry collector or a plurality of slurry collector directly or by a plurality of independent pipeline supplies to head box, described a plurality of independent pipelines guiding fiber pulp materials flows also are connected with the upstream extremity of head box.Then the mode of described slurry with spraying is discharged on the forming net by weir plate antelabium opening from the weir plate chamber of head box, thereby forms paper web on the net, described weir plate antelabium opening is positioned at the downstream of head box.
Paper machine can be made single-part stationery or the board web that only comprises a kind of types of fibers cellulose fiber, and therefore such machine has single-layer headboxes.
As selection, described machine can be made multi-ply paper or board web, wherein said paper web is made of the different layers with different types of fiber, therefore, such machine promptly can be provided with a plurality of single-layer headboxes of a plurality of individual layer paper webs that transmission superposes each other, comprise different fibrolaminar multi-layer webs with formation, the multilayer head box that provides multi-layer web to form also can be provided described paper machine.
Disclosed conventional headbox has the slurry supply manifold that directly is connected with the head box housing at its upstream end in PCT communique WO 99/36613 (Beloit).Slurry is guided to pipe group or the so-called turbulator from described manifold, and this pipe group or turbulator comprise a comb of embarking on journey and arranging, are used for slurry further is fed to the weir plate chamber of head box.The slurry that is fed to the weir plate chamber passes and is ejected on the forming net from slice opening from it.
Described pipe group comprises by six a row hundreds of comb that the pipe that extends along transverse machine forms.This structure is very heavy, and need many man-hours and assemble with manual welding should the pipe group.
U.S. Pat 4,376, disclose a kind of optional design that is used for the head box of multi-layer web in 014, wherein two slurry manifolds also directly are connected with the turbulator of head box, and described turbulator comprises a plurality of pipes that are used for making the tiny scale turbulent flow of slurry generation.This design also has top mentioned shortcoming.
As disclosed among patent EP 0 912 797B1 (Mesto Paper Karlstad AB), the multilayer head box of another traditional type has many pipelines, and described pipeline is connected the slurry manifold of correspondence with the respective tube row of head box turbulator.
Another patent EP 0 939 842B2 (Mesto Paper Karlstad AB) have been shown among Fig. 1, wherein said slurry manifold can be connected with the first pipe group, slurry stream continues to flow to the second pipe group or so-called turbulator from the first pipe group then, to be ejected on the forming net, this second pipe group is connected with the first pipe group and further is connected with the weir plate chamber.This design needs many hand assembled operations, and needs the hundreds of pipe in the welding first pipe group and the second pipe group.
US 3,923, disclose the head box of another type among 593 (Beloit).This head box has many for the slurry chamber on its entrance point, and has many weir plate chamber pressure equalizing chambers before that are positioned at after the turbulator that comprises a plurality of pipes and are positioned at head box.
Therefore, comprehensive all above-mentioned head box types, we can say that the arbitrary head box that is used to transmit fibre stuff in paper machine all has many functional parts, these functional parts comprise pressure equalizing chamber and/or the pipe encapsulation that is linked in sequence each other along the fibre stuff flow path direction.
Traditional turbulator is made for one group of a plurality of stainless steel tube, and described a plurality of stainless steel tubes are attached at together by welding, and forms across many pipes of head box width capable tube bank or pipe group.The inner surface of pipe must be very smooth, avoiding fiber laydown or flowage friction, thereby should careful operation and should stand electrolytic treatments.Quite difficulty and harsh many man-hours of action need, therefore increased equipment price.
Usually, described pipe make by stainless steel and manual welding together, forming turbulator or pipe group, so turbulator or pipe consist of the quite massive functional part of head box.The width of traditional paper machine to up to changing more than the 8m, this means that the turbulator or the pipe group of the corresponding head box of paper machine forms required size accordingly from 60cm, and can weigh very greatly.The weight of such pipe group and size cause difficulty when making, transporting and assembling head box.
US 4,895, and 624 disclose a kind of optional structure of turbulator.This turbulator is formed by one or more plastic columns.Porose or the perforation of described post, thus runner formed.The surface of each runner or wall are made by synthetic material or ceramic material, and this synthetic material or ceramic material form hard, smooth and closely knit surface, and this has prevented the absorbed moisture by plastic column.Part between the wall is formed by the suitable plastic material casting of polyurethane and so on.The raw material chemical bond of the surfacing of runner and post, thus the face coat of the main body of post and runner constitutes unified integral body by two kinds of synthetic materials that tightly combine and/or ceramic material.Described turbulator both can along transverse to generator longitudinally direction also can in the plane of the axis that is parallel to runner, be divided into hole column.Therefore, US 4,895, and 624 disclose two plastic columns that can be arranged side by side, to form the functional part (for example turbulator) in the head box.
Yet, with US 4,895, the problem that the plastic column that such of 624 is arranged side by side is relevant is stress (for example thermal stress or the dynamic stress that produces owing to the slurry flowing pressure that fluctuates in the pulp flow channel), this stress can make each plastic column distortion, therefore disturbs the formation of paper.
Summary of the invention
Therefore, the objective of the invention is to be used to compensate this possible distortion, and simplify head box functional part structure and keeping or improving price, weight and the installation time that reduces them when paper web forms.
Structural detail according to the present invention is characterised in that the feature according to the characteristic of first aspect.
Gap formation element according to structural detail of the present invention has been guaranteed to have the gap between each structural detail of other functional part of forming mixed cell, unit, balance cylinder, first pipe unit, turbulator unit or described head box.Such gap guarantees to exist the expansion space that is used for each piece again, has avoided the distortion of described pulp flow channel thus.
The invention enables price, installation time and the weight of described functional part to significantly reduce.
And, the invention enables whole head box and price, installation time and the weight of framework and equipment of enclosing significantly reduces, and simplified installation and the control of head box in its operating period.
The present invention is also by allowing to provide with adjacent relation assembling at least two structural details according to the present invention the more efficient methods of the functional part of making described head box.
The present invention also provides the method for assembling the more effective of described whole head box and simplifying by the encapsulation that allows a plurality of structural details to be assembled into preliminary dimension, described encapsulation limits at least one described functional part, the wherein said structural detail gap that is spaced apart from each other, and seal by potted component therebetween, at at least one functional part of upstream arrangement of the slurry flow path direction of the weir plate chamber of longshore current in described head box housing, and make described functional part be connected to each other and/or be connected with described slurry box housing.
Therefore, allow simpler and make more quickly and any one the different functional part that assembles described head box according to structural detail according to the present invention, therefore reduced required stainless amount and made that the man-hour that is used to assemble described functional part and described whole head box is minimum.
Only be half of weight of the conventional steel turbulator unit of same size, type and pattern by the weight of the described functional part of all turbulators as described unit of structural detail according to the present invention assembling and so on, and more easily be assembled in the described head box.
Similarly, other functional part of described head box (for example one or more equalization chamber and/or pressure equalizing chamber and the described first pipe group) also can assemble and be installed in the described head box by structural detail according to the present invention.
Should be understood that the improvement to described head box that is proposed not only is confined to described turbulator unit itself.
The head box that comprises housing, weir plate chamber and at least one functional part is arranged in the described housing upstream of described weir plate chamber along the slurry flow path direction, and wherein said functional part comprises that at least one is according to structural detail of the present invention.
According to the size and the type of described head box, a plurality of structural details according to the present invention can be assembled together, with the required size of the functional part that described turbulator unit or other head box are provided be used for the essential quantity of the passage of described slurry stream.The structural detail that limits described slurry stream road can utilize the suitable polymers material (for example polyurethane, polyurethane foam, PVDF plastics, C-PVC, polypropylene, polyethylene-HDPE,
Polyacetals (PA), epoxy resin, phenolic resins, vinyl esters or analog etc.) molded, push, inject or extrude and form, perhaps can use synthetic material or other material or technology that is fit to.As selection, described passage can be holed in the solid slug of suitable material or reaming forms.
These manufacture processes cost of reducing investment outlay is saved stainless steel, and the weight of the other parts of therefore described turbulator part and/or described head box will be lighter, and this will reduce the weight of whole head box again.
The molding process that is used to make according to a structural detail of the present invention spends about 15 to 20 minutes, and the welding of corresponding conventional tube group cost was above one hour.Save the width that material cost depends on head box: for the wide head box of about 60cm, compare cost savings about 20% to 30% with traditional pipe group; For the wide head box of about 3m, save approximately 30% to 40% than the pipe group of tradition manufacturing, and for the wide head box of about 5.5m, save about 50% to 60% than the pipe group of tradition manufacturing.The weight of described turbulator or described pipe group will reduce nearly 50%.The weight of described head box reduces makes the size of the head box bearing frame and the equipment of enclosing reduce.
The installation and the control that reduce to simplify head box position in the paper machine of the weight of head box and size.
Owing to can select the differently contoured passage in the described structural detail for different purpose (for example slurry stream quickens in any suitable manner or expands or control), therefore the slurry stream road can have different cross sections along its length, for example be used for the same geometry of slurry stream or different geometries circle of the same area, rectangle, ellipse, polygon, or, can have different slurry flow area or cross section as selecting.The above-mentioned technology of passing through to be proposed is than by utilizing traditional stainless steel tube during manufacture can the above purpose of easier realization.
Description of drawings
Referring now to accompanying drawing the present invention is described in further detail.
Fig. 1 is the profilograph according to the structural detail of first embodiment of the invention.
Fig. 2 is the profilograph according to the structural detail of second embodiment of the invention, and the form with enlarged drawing among Fig. 2 A shows threaded insert.
Fig. 3 is the profilograph according to the structural detail of third embodiment of the invention, and the form with enlarged drawing among Fig. 3 A shows the pressure insert.
Fig. 3 B shows the sectional view I to IV according to the structural detail of Fig. 3, shows the different cross section shape in the slurry stream road that is arranged in the structural detail.
Fig. 4 is the profilograph that is used for according to the upstream structural detail of the structural detail of first functional part of the present invention and second functional part, first functional part is the form of turbulator unit, and second functional part is the first pipe unit form that is connected with the turbulator unit.
Fig. 5 is the profilograph of downstream configurations element of first functional part that is the form of turbulator unit, and the turbulator unit is connected with upstream first pipe unit.
Fig. 6 is the profilograph that comprises the head box of three difference in functionality parts that are unit, balance cylinder, first pipe unit and turbulator unit form, and the turbulator unit is assembled by many structural details according to the present invention.
Fig. 7 is the profilograph of head box that comprises the difference in functionality parts of two forms that are unit, balance cylinder and turbulator unit, and turbulator directly is connected with the unit, balance cylinder and is assembled by many structural details according to the present invention.
Fig. 8 represents the turbulator unit that is assembled by a plurality of structural details according to the present invention the gap to be set between the structural detail, and gap as described in sealing by band shown in the enlarged drawing among Fig. 8 A.
Fig. 9 represents to comprise the profilograph of head box of the difference in functionality parts of two forms that are mixed cell and turbulator unit, and the turbulator unit is assembled by many structural details according to the present invention.
Figure 10 represents the profilograph according to the mixed cell of Fig. 9.
Figure 11 represents the sectional view according to the mixed cell of Fig. 9.
The specific embodiment
Fig. 1 represents the profilograph according to the structural detail 17 of first embodiment of the invention.Structural detail 17 comprises the one piece 1 of solid, and this one piece 1 has a plurality of passages 2 that connect piece 1 from the upstream extremity 1A of structural detail 17 to downstream 1B.Passage 2 limits the stream of paper pulp, and with the arranged in form of row and column.For example, piece 1 can comprise four lines passage 2, all has three passages in every row, as Fig. 3 and Fig. 3 B are disclosed.
The paper fibre stuff type (for example concentration of slurry, fiber synthetic etc.) of being transported by each row of channels 2 can change, and the result can form multi-layer web.For example, if the embodiment of Fig. 8 is used for three layers of head box, then go up most the slurry that two row of channels are used for the first kind, the middle two rows passage is used for the slurry of second type, and the most following two row of channels are used for the slurry of the 3rd type.
Preferably, piece 1 is made by high performance polyurethane is molded, but also can use any other polymer (for example polyurethane foam, PVDF plastics, C-PVC, polypropylene, polyethylene-HDPE, polyacetals, epoxy resin, phenolic resins, vinyl esters) and/or synthetic material or light metal or metal dust or pottery, and can use suitable manufacture method with desired properties.
When piece 1 was made by high-performance polyurethane elastomer, it preferably formed by molded in the computer control injector with molded form.Polymer directly is pumped into the forming tool from machine.Forming tool is made by machining aluminium usually.After the official hour section (for example about 1 hour), open instrument and make the described demoulding, that is, remove from forming tool.Then molded 1 is placed in the stove and (for example placed 16 hours down) with regelate at 100 ℃.Remove the unnecessary overlap (excess flashing) of part 1 then by sharp knife or lancet.Hardness, porosity and other relevant parameter of checking piece 1 then also have overall appearance, meet the requirement that sets with the quality of guaranteeing piece.Can also extract keeping sample, to be used for the quality control of back at the testing equipment place from mold.At last, insert (for example metal insert) can be coupled in the passage of (for example be press-fitted or be screwed to) described (referring to Fig. 2), thereby form final structural detail.
Certainly, can use optionally other known suitable method of manufacture or technology.
Because above-mentioned manufacture method, the inner surface of passage can be made very smoothly, so passage is without any need for liner or additional operations, for example as the inner surface of the corresponding conventional steel of traditional turbulator.
Preferably, being sized to of piece makes that this piece is easy to molded but also is easy to be assembled in the pipe unit.The size of passage, form and quantity are suitable for making piece to become the pipe unit type of parts in the piece.
The material of piece should stand the pressure of slurry stream.Therefore, required wall thickness depends on the material that piece is used between the adjacent row of passages and between the adjacent lines of each passage.The partition wall of the adjacency channel in the piece of being made by polyurethane should be preferably 2.0mm at least, too large deformation can not take place can stand the flowing pressure in the passage.However, it should be understood that if adopt other material to make part 1 then wall thickness between the adjacency channel or distance can change.Usually, the preferred wall thickness between the adjacency channel 2 can change between the 50mm at 0.2mm according to selected block of material.
Preferably, structural detail 17 comprises attachment arrangement (for example recess 6), is used for structural detail is installed to the housing 12 of head box 10, perhaps is used for other functional part or structural detail in structural detail and the head box 10 are arranged together.
Be used for installing blade 5 recess 4 of (dividing root piece or so-called wedge and/or turbulent blade) having on the downstream 1B of structural detail 17 and between adjacent pulp flow channel 2 as the known slurry of prior art.As shown in Figure 8, when being assembled to a plurality of structural detail 17A, 17B, 17C in the turbulator unit 11, the recess 4 of structural detail forms groove at downstream 1B place, and described groove extends along transverse machine, and as shown in Figure 2, blade 5 can insert in this groove.
In order to be connected with the upstream functional part, structural detail 17 can comprise insert or the insert 3 in the upstream portion that is arranged in passage 2.Fig. 2 shows the vertical section of structural detail 17, and this structural detail 17 1A place at its upstream end comprises the insert 3 of the form that is metal lining or other suitable Connection Element, is used for the passage 2 of structural detail is connected to the pipe 7 ' of the first traditional pipe unit 7.As showing with the form of enlarged drawing among Fig. 2 A insert 3 is screwed in the passage 2, therefore manages 7 ' and insert in the insert 3.In this embodiment, passage 2 is made in the same manner convergence on the whole length of piece 1, however the cross-sectional geometry of passage 2 can change according to expectation, for example be the form of circle, ellipse, rectangle etc.
Though only show the four lines passage here, should be understood that the passage line number in the piece 1 can be from 1 to changing more than 9, the number of channels in every row can be from 1 to variation 8 or more.
The convergence form of the passage 2 of piece 1 makes slurry stream quicken.
Preferably, the sectional area of pipe 7 ' downstream is less than the sectional area of passage 2 upstream extremities.This cross section product moment causes the flow channel of slurry to become big suddenly, has therefore improved the flocculation again of paper fiber, and produces small turbulent flow in flowing.In this embodiment, therefore insert 3 and insert pipe 7 ' and be arranged for and make the slurry stream road become big suddenly, causes the staple fibre in the slurry stream to destroy, and the opening section that is used for slurry stream that inserts pipe 7 ' is long-pending littler than the upstream portion of passage 2.
Should understand, the functional part of different head boxs or the cross section flow surface product moment between the unit can (for example be arranged with many different modes, as Fig. 2 or shown in Figure 7, by any suitable insert 3,3 ' is inserted in the passage 2), but be not limited to only use insert 3,3 '.
As shown in Figure 3, insert 3 can be pressed onto among the upstream open 2A of each passage 2 alternatively, shown in the enlarged drawing of Fig. 3 A.
Shown in Fig. 3 B, the import 2A of passage 2 and the form of outlet 2B can change in shape widely, are circle, ellipse, rectangle, polygon and other selected form in the I to IV of cross section.Opening 2A on upstream extremity 1A and the downstream 1B and the shape of 2B can be identical or different, and select according to the stream of the slurry in these passages parameter to be achieved.
Fig. 4 shows another embodiment according to head box 10 of the present invention, wherein is installed in successively in the housing 12 of head box 10 according at least two structural details 17,18 of the present invention (being the turbulator unit 11 and first pipe unit 15 in this case) order.Turbulator unit 11 comprises a structural detail 17 or a plurality of structural details 17 of installing side by side along the cross section of head box 10.Equally, first pipe unit 15 comprises a structural detail 18 or along a plurality of structural details 18 of laterally installing side by side of head box 10.Each structural detail 17,18 comprises the piece of being made by high-performance polyurethane elastomer, and described forms according to above-mentioned method is molded.
Should be understood that the cross sectional shape of the passage in first pipe unit 15 and/or area can also with the cross sectional shape of the passage of turbulator unit 11 and/or area is the same change.
Described of structural detail 17,18 is made for and makes them comprise cooperation attachment arrangement 6 (for example projection or depression), and with location structure element 17,18 accurately, thereby corresponding passage 2 is fitted to each other.Preferably, structural detail 17,18 is packed in the housing 12 of head box 10 regularly, thus, does not need above-mentioned insert that first pipe unit 15 is connected with turbulator unit 11.
Fig. 5 shows an embodiment again that forms the structural detail 17 of second pipe unit or turbulator 11 according to of the present invention in head box 10.With first pipe 7 ' of the first traditional pipe unit 7 insert 3 with the upstream extremity 1A place of the passage 2 of the mode insert structure element 17 identical with the above.Yet, in this case, do not have the root piece of branch or wedge at the downstream 1B place of structural detail 17.
Therefore, when assembling during, need to make the functional part 11 that is the second pipe unit form according to the head box 10 of Fig. 5.As mentioned above, this is by molded 1 and insert 3 is inserted among the upstream extremity 1A of passage 2 of pieces 1 and carry out, thereby forms structural detail 17.Afterwards, a plurality of such structural details 17 are arranged side by side as shown in Figure 8, that is, make gap 14 is set between adjacent structural detail, and form functional part 11.Then, functional part 11 is arranged in the housing 12 of head box 10, thereby in the piece 1 of the structural detail 17 of functional part 11 and housing wall, the gap is set.Afterwards, connect the pipe 7 ' and insert 3 of first pipe unit 7, thereby the formation fluid is communicated with between the passage 2 of piece 1 and the functional part that is positioned at the upstream (for example mixed cell 23 of type shown in Fig. 9 to Figure 11).Optional is, can divide root piece 5 at the downstream 1B place of piece 1 installation slurry, and this is shown in Figure 2.Certainly, the order of these steps can change.
Fig. 6 shows according to head box 10 of the present invention, and this head box 10 comprises housing 12 and isolated difference in functionality parts 8,7,11 and 9 in housing 12.Parts 8 comprise many stable or equiulbrium flow dynamic pressure chambers 8 '.Slurry stream crosses one or more collectors or a plurality of manifold (not shown) is fed in the chamber 8 '.Then, this slurry stream continues to flow in first pipe or passage 7 ' of parts 7 (as shown in Figure 4 and Figure 5 and as described above).Slurry stream is fed to turbulator unit 11 (it also has above-mentioned illustrated function) from functional part 7, and further is fed in the weir plate chamber 9, slurry stream continues to flow to the slice opening on the downstream of housing 12 in weir plate chamber 9.Slurry is transported on the forming net (not shown) from slice opening.Weir plate chamber 9 can comprise that at least one divides root piece 5, this minute root piece 5 be installed on the downstream 1B of turbulator unit 11, and weir plate chamber 9 in, separate different slurries and flow.As selection, can between the branch root piece 5 in the identical slurry stream, at least one turbulent blade 5 ' be installed, be used to promote small turbulent flow, and improve the formation of paper web.
As shown here, two line pipes 7 ' are transported to next turbulator unit 11 with identical paper pulp from each balance cylinder 8 '.
Another embodiment according to whole head box 10 of the present invention has been shown among Fig. 7.Head box 10 comprises housing 12 and different functional parts, for example directly is connected with turbulator unit 11 and the balance cylinder 8 before weir plate chamber 9, and all these functional parts 8,9 and 11 are spaced apart in housing 12.When not using in the head box 10 for first when pipe, can by other known way (for example as described below by will manage or insert insertion turbulator passage in) the unexpected expansion that is flowing in second tube passage 2 (or flowing to turbulator unit 11) is provided.
Therefore, first pipe unit or functional part 7 can be substituted by insert 3 ' or other suitable device.Insert 3 ' can be forced into or be screwed in the passage 2 of structural detail 1, or fixes by alternate manner well known in the prior art.In this embodiment, two or one of them functional part (unit 11 and unit 8) can be made by structural detail according to the present invention.
Fig. 8 shows the turbulator unit 11 that is assembled by a plurality of structural detail 17A, 17B and 17C of head box 10, and structural detail 17A, 17B and 17C include according to one piece 1 of the present invention.As selection, can assemble for example other parts or unit 7 and 8 of functional part similarly.Because can there be some thermal expansions in the material of piece 1, and structural detail 17A, 17B and 17C can stand about 20 ℃ to 55 ℃ temperature, so should be mounted between the piece 1 and have some gaps 14.Preferably, the width in gap 14 is approximately 0.2mm at least to 0.7mm.Yet because the temperature coefficient difference of different materials, so the width in gap 14 can change, and can be different because of making the used material of one piece 1.Form element 13 by at least one gap and guarantee gap 14 between two adjacent blocks 1.Preferably, element 13 is arranged such that its seal clearance 14 simultaneously, flows in the adjacent block to prevent paper pulp or other fluid or gas (for example air).Therefore, element 13 can be used as potted component and gap formation element.Element 13 can be arranged in one or more outer surface of each piece 1.Element 13 can be made into integration with piece 1,, is made for the integral part of piece 1, shown in Fig. 8 A that is.Potted component 13 can form at least one band 13, and band 13 is from the side 22 of piece 1, on the end face 20 and piece 1 surface on the bottom surface 21 is left approximately perpendicular to the slurry flow path direction and outstanding.As selection, these sealed strips 13 or other potted component can be positioned on the side 22 of structural detail, and can tilt with respect to the slurry flow path direction.Preferably, the band 13 of piece 1 is located such that band 13 cooperations and the interconnection on adjacent block surface, shown in the enlarged drawing of Fig. 8 A, wherein on a surface of piece 1, arrange the wall scroll band, and arrange that on the apparent surface of piece 1 two bands, these strap arrangements become to make the wall scroll band to be engaged between two bands of adjacent block 1 of same type.As selection, only an element or a band 13 that highly is similar to gap 14 can guarantee to exist gap 14 and while seal clearance 14.The height of band 13 is approximately the size in selected gap 14, and band 13 is preferably molded or make with piece 1 by alternate manner.As selection, the band of two adjacent blocks or potted component 13 can be arranged to toward each other, thereby each element all contacts with the element of relative piece.In this arrangement, the height of each element only needs half for gap width.Band or potted component 13 can for example be fixed to piece 1 by adhesive or other suitable manner after this piece is so made, rather than as the integral part of piece 1.As selection, when assembling head box 10, band or potted component 13 can be positioned between adjacent piece and the housing 12 and/or a plurality of and housing 12 between, band or potted component 13 can be adhered to the piece surface in this case, and can remain on correct position by the confining force of housing 12.
Therefore, the gap forms the surface that gap that element 13 can be arranged to the butt adjacent block forms the housing 12 of element or surface or head box 10.The gap forms element 13 can have any suitable section form, that is, and and the semicircle as shown in Fig. 8 A.Preferably, it is elongated and continuous that the gap forms element 13, makes their extend along the whole length or the width on piece surface.
Figure 11 represents the embodiment again according to head box of the present invention.Head box 10 comprises second pipe unit or turbulator 11, and this turbulator 11 comprises a plurality of according to the structural detail that is arranged side by side 17 of the present invention.In the upstream of turbulator 11, head box 10 comprises first pipe unit 7, and this first pipe unit 7 comprises many metal tubes, and these metal tubes are attached to the insert in the passage of turbulator 11.In the upstream of first pipe unit 7, head box 10 comprises mixed cell 23.In the upstream of mixed cell 23, head box 10 comprises manifold 24, is used for to mixed cell 23 supply paper pulp.
As mentioned above, the piece 1 of structural detail 25 preferably forms by high-performance polyurethane elastomer is molded.And preferably, as mentioned above, insert 29 is coupled in the passage 26.
Have the head box that comprises according to the functional part of structural detail of the present invention and can be used in the web-manufacturing machine of any kind for example traditional paper, cardboard or tissue machine.
Should be understood that the embodiment of the present invention shown in being not limited to, and should be interpreted as being in the spirit of the present invention.The present invention is used in any one functional part or the unit in the head box that uses in the paper machine.
At last, should be understood that the structural detail of being made by structural detail according to the present invention can be used for using in the new head box and when constructing once more or renovating existing head box.
Claims (according to the modification of the 19th of treaty)
1, a kind of structural detail (17 of functional part (11) of the head box (10) that is used for web-manufacturing machine, 18,25,30), this structural detail (17,18,25,30) comprise one piece (1), comprise a plurality of passages (2) in this one piece, these a plurality of passages are defined for the flow channel of paper pulp, described pulp flow channel (2) extends through this one piece (1) from first upstream extremity (1A) of described (1) to second downstream (1B), and this structural detail is characterised in that: this structural detail (17,18,25,30) comprise that also at least one first gap forms element (13), this first gap forms arrangements of elements and becomes to guarantee described structural detail (17,18, at least one outer surface of 25,30) described (1) and the clearance of predetermined width (14) between the adjacent elements.
2, structural detail according to claim 1 (17,18,25,30) is characterized in that, described adjacent elements is the housing (12) of described head box (10).
3, structural detail according to claim 1 (17A) is characterized in that, described adjacent elements is another structural detail (17B).
According to each described structural detail (17,18,25,30) in the claim 1 to 3, it is characterized in that 4, described at least one first gap forms element (13) and is arranged on the first surface of described (1).
5, structural detail according to claim 4 (17,18,25,30), it is characterized in that this structural detail (17,18,25,30) comprise that also at least one second gap on the second surface that is arranged in described (1) forms element (13), described second surface is opposite with described first surface.
6, structural detail (17 according to claim 5,18,25,30), it is characterized in that, described first gap forms element (13) and comprises the wall scroll band, and described second gap forms element (13) and comprises two bands, and described strap arrangements becomes to make described wall scroll band be engaged between the described pair of band of the adjacent block of same type (1).
According to each described structural detail (17,18,25,30) in the claim 4 to 6, it is characterized in that 7, described one or more gaps form one or more surfaces that element (13) is attached to described (1).
According to each described structural detail (17,18,25,30) in the claim 4 to 6, it is characterized in that 8, described one or more gaps form the integral part that element (13) is made for described (1).
9, according to each described structural detail (17 in claim 7 and 8,18,25,30), it is characterized in that, it is continuous that described one or more gap forms element (13), makes described one or more gap form whole length or the width extension of element (13) along described one or more surfaces of described (1).
10, structural detail according to claim 9 (17,18,25,30) is characterized in that, described one or more gaps form element (13) and are arranged to seal described one or more gap (14).
According to each described structural detail (17,18,25,30) in the claim 1 to 10, it is characterized in that 11, described (1) is made by in polymer, synthetic material, metal dust, light metal and the pottery one of them.
12, structural detail according to claim 11 (17,18,25,30) is characterized in that, described polymer is one of them in polyurethane, polyurethane foam, plastics, polypropylene, polyacetals, epoxy resin, phenolic resins and the vinyl esters.
According to each described structural detail (17,18,25,30) in the claim 1 to 12, it is characterized in that 13, described (1) makes by molded, in casting, inject, extrude and pushing one of them.
According to each described structural detail (17,18,25,30) in the claim 1 to 13, it is characterized in that 14, the cross sectional shape of the described passage (2) of described (1) and/or area of section are along the length of described passage (2) and change.
According to each described structural detail (17,18,25,30) in the claim 1 to 14, it is characterized in that 15, the wall thickness between two adjacency channels (2) of described (1) is at least 2mm.
16, according to each described structural detail (17,18,25,30) in the claim 1 to 15, it is characterized in that, in the described passage (2) of described (1), arrange insert (3,3 ').
17, a kind of functional part (8,11,15,23) that is used for the head box (10) of paper machine, described functional part (8,11,15,23) comprises according to each described first structural detail (17,18,25,30) in the claim 1 to 16.
18, functional part (8 according to claim 17,11,15,23), wherein said functional part (8,11,15,23) except that described first structural detail (17B), also comprise according to each described at least one second structural detail (17A in the claim 1 to 16,17C), this first and second structural detail (17A, 17B, 17C) be arranged side by side, thereby (upstream extremity (1A) and described downstream (1B) position of 17C) described (1) are consistent for 17A, 17B for described structural detail, described functional part is characterised in that, (described gap 17C) forms element (13) and is arranged between the adjacent structural detail described structural detail for 17A, 17B, be used to guarantee described adjacent structural detail (17A, 17B; 17B, 17C) clearance of predetermined width between (14).
19, functional part according to claim 18 (11) is characterized in that, described gap forms element (13) and comprises and be arranged in described adjacent structural detail (17A, 17B; 17B, the band between 17C) described (1).
20, functional part according to claim 19 (11) is characterized in that, described band is attached to described adjacent structural detail (17A, 17B; 17B, the surface of 17C) described (1).
21, according to each described functional part (11) in the claim 18 to 20, it is characterized in that, it is continuous that described gap forms element (13), thereby described one or more gap forms whole length or the width extension of element (13) along the described surface of described (1), and described gap formation element (13) is arranged to seal described gap (14).
According to each described functional part (11) in the claim 18 to 21, it is characterized in that 22, described one or more gaps (14) are enough to make described adjacent structural detail (17A, 17B; 17B, described (1) thermal expansion 17C).
23, functional part according to claim 22 (11) is characterized in that, the width of described gap (14) is at least 0.2mm to 0.7mm.
Claims (30)
1, a kind of structural detail (17 of functional part (11) of the head box (10) that is used for web-manufacturing machine, 18,25,30), this structural detail (17,18,25,30) comprise one piece (1), comprise a plurality of passages (2) in this one piece, these a plurality of passages are defined for the flow channel of paper pulp, described pulp flow channel (2) extends through this one piece (1) from first upstream extremity (1A) of described (1) to second downstream (1B), and this structural detail is characterised in that: this structural detail (17,18,25,30) comprise that also at least one first gap forms element (13), this first gap forms arrangements of elements and becomes to guarantee this structural detail (17,18,25,30) described (1) and the clearance of predetermined width (14) between the adjacent elements.
2, structural detail according to claim 1 (17,18,25,30) is characterized in that, described adjacent elements is the housing (12) of described head box (10).
3, structural detail according to claim 1 (17A) is characterized in that, described adjacent elements is another structural detail (17B).
According to each described structural detail (17,18,25,30) in the claim 1 to 3, it is characterized in that 4, described at least one first gap forms element (13) and is arranged on the first surface of described (1).
5, structural detail according to claim 4 (17,18,25,30), it is characterized in that this structural detail (17,18,25,30) comprise that also at least one second gap on the second surface that is arranged in described (1) forms element (13), described second surface is opposite with described first surface.
6, structural detail (17 according to claim 5,18,25,30), it is characterized in that, described first gap forms element (13) and comprises the wall scroll band, and described second gap forms element (13) and comprises two bands, and described strap arrangements becomes to make described wall scroll band be engaged between the described pair of band of the adjacent block of same type (1).
According to each described structural detail (17,18,25,30) in the claim 4 to 6, it is characterized in that 7, described one or more gaps form one or more surfaces that element (13) is attached to described (1).
According to each described structural detail (17,18,25,30) in the claim 4 to 6, it is characterized in that 8, described one or more gaps form the integral part that element (13) is made for described (1).
According to each described structural detail (17,18,25,30) in claim 7 and 8, it is characterized in that 9, it is continuous that described one or more gaps form element (13).
10, structural detail according to claim 9 (17,18,25,30) is characterized in that, described one or more gaps form element (13) and are arranged to seal described one or more gap (14).
According to each described structural detail (17,18,25,30) in the claim 1 to 10, it is characterized in that 11, described (1) is made by in polymer, synthetic material, metal dust, light metal and the pottery one of them.
12, structural detail according to claim 11 (17,18,25,30) is characterized in that, described polymer is one of them in polyurethane, polyurethane foam, plastics, polypropylene, polyacetals, epoxy resin, phenolic resins and the vinyl esters.
According to each described structural detail (17,18,25,30) in the claim 1 to 12, it is characterized in that 13, described (1) makes by molded, in casting, inject, extrude and pushing one of them.
According to each described structural detail (17,18,25,30) in the claim 1 to 13, it is characterized in that 14, the cross sectional shape of the described passage (2) of described (1) and/or area of section are along the length of described passage (2) and change.
According to each described structural detail (17,18,25,30) in the claim 1 to 14, it is characterized in that 15, the wall thickness between two adjacency channels (2) of described (1) is at least 2mm.
16, according to each described structural detail (17,18,25,30) in the claim 1 to 15, it is characterized in that, in the described passage (2) of described (1), arrange insert (3,3 ').
17, a kind of functional part (8,11,15,23) that is used for the head box (10) of paper machine, described functional part (8,11,15,23) comprises according to each described first structural detail (17,18,25,30) in the claim 1 to 16.
18, functional part (8 according to claim 17,11,15,23), wherein said functional part (8,11,15,23) except that described first structural detail (17B), also comprise according to each described at least one second structural detail in the claim 1 to 16 (17A, 17C), the described first and second structural detail (17A, 17B 17C) is arranged side by side, thereby upstream extremity of described (1) (1A) and described downstream (1B) are consistent, described functional part is characterised in that, (described gap 17C) forms element (13) and is arranged between the adjacent structural detail described structural detail for 17A, 17B, be used to guarantee described adjacent structure element (17A, 17B; 17B, 17C) clearance of predetermined width between (14).
19, functional part according to claim 18 (11) is characterized in that, described gap forms element (13) and comprises and be arranged in described adjacent structure element (17A, 17B; 17B, the band between 17C) described (1).
20, functional part according to claim 19 (11) is characterized in that, described band is attached to described adjacent structure element (17A, 17B; 17B, the surface of 17C) described (1).
According to each described functional part (11) in the claim 18 to 20, it is characterized in that 21, described gap forms element (13) continuously and be arranged to seal described gap (14).
According to each described functional part (11) in the claim 18 to 21, it is characterized in that 22, described one or more gaps (14) are enough to allow described adjacent structure element (17A, 17B; 17B, described (1) thermal expansion 17C).
23, functional part according to claim 22 (11) is characterized in that, the width of described gap (14) is at least 0.2mm to 0.7mm.
According to each described functional part in the claim 17 to 23, it is characterized in that 24, this functional part is any one in mixed cell (23), unit, balance cylinder (8), first pipe unit (15) and second pipe unit (11).
25, a kind of head box (10) that is used for paper machine, wherein this head box (10) comprises housing (12) and according to each described first functional part (8 in the claim 17 to 24,11,15,23), this head box is characterised in that, described first functional part (8,11,15,23) described structural detail (17,18,25,30) some gaps form element (13) and are arranged to guarantee described first functional part (8,11,15,23) described structural detail (17,18,25,30) described (1) and the clearance of predetermined width (14) between the described housing (12).
26, head box according to claim 25 (10), wherein, this head box (10) also comprises according to each described second functional part (8,11 in the claim 17 to 24,15,23), wherein, described second functional part (8,11,15,23) described structural detail (17,18,25,30) some gaps form element (13) and are arranged to guarantee described second functional part (8,11,15,23) described structural detail (17,18,25,30) described (1) and the clearance of predetermined width (14) between the described housing (12), and wherein said first and second functional parts (8,11,15,23) one in direction along described slurry stream is arranged in head box (10) with being arranged in another upstream.
27, a kind of method of making structural detail according to claim 8 the method is characterized in that following steps:
-high-performance polyurethane elastomer is pumped into the forming tool from computer-controlled injector, with molded described (1), described is molded as one of them surperficial described at least one gap formation element (13) of formation of going up that makes described (1),
-after the official hour section, remove described molded (1) from described instrument,
-described (1) is placed in the stove, be used for regelate preset time section under the temperature of regulation, and optional is,
Insert (3,3 ') is coupled in the described passage (2) of described (1).
28, method according to claim 27, wherein, be approximately 1 hour removing described molded (1) described official hour section before from described instrument, and wherein be used for the set point of temperature of regelate described (1) and time for approximate 100 ℃ approximate 16 hours down.
29, a kind of assembling the method is characterized in that following steps according to the method for each described functional part (11) in the claim 18 to 23:
-arrange that abreast (17C), (upstream extremity (1A) of 17C) described (1) is consistent with downstream (1B) for 17A, 17B to make described structural detail for 17A, 17B according to each described a plurality of structural details in the claim 1 to 16;
-(gap 17C) forms element (13) and is arranged in each adjacent structural detail (17A, 17B for 17A, 17B with described structural detail; 17B, 17C) between; And
-at adjacent structural detail (17A, 17B; 17B forms clearance of predetermined width (14) between 17C).
30, the method for a kind of assembling head box according to claim 25 (10) the method is characterized in that following steps:
-will be arranged in the housing (12) of described head box (10) according to each described first functional part (11) in the claim 17 to 24;
-pipe (7 ') of first pipe unit (7) is connected to the upstream extremity of the described structural detail (17) of described first functional part (11), to provide fluid to be communicated with between the described passage (2) of described first functional part (11) and second functional part (23) that is arranged in described first functional part (11) upstream; And optional is,
-locating to install slurry in the downstream (1B) of described (1) of the described structural detail (17) of described first functional part (11) divides root piece (5).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE2007000190 | 2007-03-01 | ||
| SEPCT/SE2007/000190 | 2007-03-01 | ||
| PCT/SE2008/000166 WO2008105714A1 (en) | 2007-03-01 | 2008-02-29 | Structural element for a functional member of a headbox in a web-manufacturing machine, functional member and headbox made thereof, and associated methods |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101622399A true CN101622399A (en) | 2010-01-06 |
| CN101622399B CN101622399B (en) | 2012-10-17 |
Family
ID=39721485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200880006666.0A Expired - Fee Related CN101622399B (en) | 2007-03-01 | 2008-02-29 | Structural element for a functional member of a headbox in a web-manufacturing machine, functional member and headbox made thereof, and associated methods |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2129830A4 (en) |
| CN (1) | CN101622399B (en) |
| WO (1) | WO2008105714A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103261515A (en) * | 2010-12-21 | 2013-08-21 | 美卓造纸机械公司 | Flow pipe for the turbulence generator of the headbox of a fibre web machine and a turbulence generator of the headbox of a fibre web machine |
| CN103276618A (en) * | 2013-05-30 | 2013-09-04 | 华南理工大学 | Papermaking chemical adding device |
| CN103422384A (en) * | 2013-08-08 | 2013-12-04 | 华南理工大学 | Hydraulic power experimental flow box capable of being used for flow field measurement and visualization research |
| CN103669076A (en) * | 2013-12-23 | 2014-03-26 | 云南中烟昆船瑞升科技有限公司 | Efficient pulp and water mixing device |
| CN109477300A (en) * | 2016-07-29 | 2019-03-15 | 福伊特专利有限公司 | The method of flow module and the flow module for manufacturing the head box for paper machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI122144B (en) * | 2010-04-08 | 2011-09-15 | Metso Paper Inc | Design element for an inlet box in a fiber web machine |
| FI20115407A (en) * | 2011-04-28 | 2012-10-29 | Vaahto Oy | Distribution channel system in conjunction with a paper machine's inlet box |
| FI125215B (en) * | 2011-11-02 | 2015-07-15 | Valmet Technologies Inc | Headbox of fiber machine |
| DE102020103003A1 (en) * | 2020-02-06 | 2021-08-12 | Voith Patent Gmbh | Flow grid and method of making a flow grid |
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| US3528882A (en) * | 1964-07-23 | 1970-09-15 | Black Clawson Co | Reinforced headbox for paper machine |
| GB1195212A (en) * | 1967-05-30 | 1970-06-17 | Int Paper Canada | Improved Distribution System for SUpplying a Fibre Suspension to the Headbox of a Paper-Making Machine. |
| US3923593A (en) * | 1971-12-03 | 1975-12-02 | Beloit Corp | Multiple ply web former with divided slice chamber |
| US4376014A (en) * | 1979-04-12 | 1983-03-08 | Beloit Corporation | Headbox for forming multi-ply sheets |
| DE3144066C2 (en) * | 1981-11-06 | 1985-10-31 | J.M. Voith Gmbh, 7920 Heidenheim | "Headbox for a paper machine" |
| FI78750B (en) * | 1982-07-20 | 1989-05-31 | Escher Wyss Gmbh | FLERSKIKTSINLOPPSLAODA FOER MATANDE AV PAPPERSMASSA TILL EN VIRA. |
| DE3525760A1 (en) * | 1984-08-22 | 1986-02-27 | Sulzer-Escher Wyss GmbH, 7980 Ravensburg | Guide part for the headbox of a papermachine |
| FI80487C (en) * | 1986-05-12 | 1990-06-11 | Ahlstroem Valmet | TURBULENSGENERATOR I EN PAPPERSMASKINS INLOPPSLAODA. |
| FI79363C (en) * | 1988-09-26 | 1989-12-11 | Valmet Paper Machinery Inc | FOERFARANDE OCH ANORDNING I INLOPPSLAODAN AV EN PAPPERSMASKIN FOER ATT BEHAERSKA FOERDELNINGEN I PAPPERSBANANS FIBERORIENTERING. |
| US5082531A (en) * | 1990-10-26 | 1992-01-21 | Hasegawa Machinery Limited | Head box in a paper machine |
| DE4318430C2 (en) * | 1993-06-03 | 1997-03-27 | Schultz Hans Joachim Dr Ing | Headbox system of a paper machine |
| SE506322C2 (en) * | 1996-03-08 | 1997-12-01 | Valmet Karlstad Ab | Device for feeding stock to an inlet box in a paper machine |
| SE506931C2 (en) * | 1996-06-12 | 1998-03-02 | Valmet Karlstad Ab | Multilayer inbox for a paper machine |
| FI98938C (en) * | 1996-06-20 | 1997-09-10 | Valmet Corp | Apparatus for combining the dilution flow with the pulp flow from the paper / board divider |
| EP1161594A1 (en) * | 1998-01-16 | 2001-12-12 | Beloit Technologies, Inc. | Papermaking headbox |
| DE19830872A1 (en) * | 1998-07-10 | 2000-01-13 | Voith Sulzer Papiertech Patent | Stock inlet turbulence generator for a papermaking machine |
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2008
- 2008-02-29 CN CN200880006666.0A patent/CN101622399B/en not_active Expired - Fee Related
- 2008-02-29 EP EP08712750A patent/EP2129830A4/en not_active Withdrawn
- 2008-02-29 WO PCT/SE2008/000166 patent/WO2008105714A1/en active Application Filing
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103261515A (en) * | 2010-12-21 | 2013-08-21 | 美卓造纸机械公司 | Flow pipe for the turbulence generator of the headbox of a fibre web machine and a turbulence generator of the headbox of a fibre web machine |
| CN103261515B (en) * | 2010-12-21 | 2015-04-01 | 维美德技术有限公司 | Flow pipe for the turbulence generator of the headbox of a fibre web machine and a turbulence generator of the headbox of a fibre web machine |
| CN103276618A (en) * | 2013-05-30 | 2013-09-04 | 华南理工大学 | Papermaking chemical adding device |
| CN103422384A (en) * | 2013-08-08 | 2013-12-04 | 华南理工大学 | Hydraulic power experimental flow box capable of being used for flow field measurement and visualization research |
| CN103422384B (en) * | 2013-08-08 | 2015-04-22 | 华南理工大学 | Hydraulic power experimental flow box capable of being used for flow field measurement and visualization research |
| CN103669076A (en) * | 2013-12-23 | 2014-03-26 | 云南中烟昆船瑞升科技有限公司 | Efficient pulp and water mixing device |
| CN109477300A (en) * | 2016-07-29 | 2019-03-15 | 福伊特专利有限公司 | The method of flow module and the flow module for manufacturing the head box for paper machine |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2129830A1 (en) | 2009-12-09 |
| WO2008105714A8 (en) | 2008-11-27 |
| WO2008105714A1 (en) | 2008-09-04 |
| EP2129830A4 (en) | 2012-06-13 |
| CN101622399B (en) | 2012-10-17 |
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