CN101925703A - Drier section - Google Patents
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- CN101925703A CN101925703A CN2008801254629A CN200880125462A CN101925703A CN 101925703 A CN101925703 A CN 101925703A CN 2008801254629 A CN2008801254629 A CN 2008801254629A CN 200880125462 A CN200880125462 A CN 200880125462A CN 101925703 A CN101925703 A CN 101925703A
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- drying
- group
- dry
- drying section
- cloth width
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- 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
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G9/00—Other accessories for paper-making machines
- D21G9/0063—Devices for threading a web tail through a paper-making machine
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- Drying Of Solid Materials (AREA)
Abstract
The invention relates to a drier section for drying a paper, cardboard, or other fiber material web (1) in a machine for producing the same, having at least two drying groups (7,8,9) wherein the fiber material web (1) is supported by an endless circulating drying belt (2) and guided alternately over heated drying cylinders (3) disposed in a row adjacent to each other and over guide rollers (4), wherein the drying belt (2) presses the fiber material web (1) against the jacket surface of the drying cylinder (3) and only one particular side of the fiber material web (1) comes into contact with the drying cylinders (3) in each of the drying groups (7,8,9). The curl of the fiber material web (1) should thereby be reduced in an improved manner with good web guidance, in that the upper side of the fiber material web (1) comes into contact with the heated drying cylinders (3) in the last drying group (9), and the lower side of the fiber material web (1) comes into contact with the heated drying cylinders (3) in all preceding drying groups (7,8), and the row of drying cylinders of the last drying group (9) runs downward in the running direction of the web (12).
Description
Technical field
The present invention relates to a kind of being used at the drying section that has dry this web of machine at least two dry groups, that prepare the paper stock width of cloth, cardboard web or other fibrous cloth width, fibrous cloth width is by the dry zone supporting of closed ring in described dry group, and alternately by drying drum and deflector roll guiding heating, that row are arranged side by side, wherein, dry zone is towards the jacket casing of drying drum surface extrusion fiber web, and in each dry group only a certain side of fibrous cloth width contact with drying.
Background technology
Because simple structure and especially be easy to transport the breadth residue when breadth is thrown off, people use more and more and have the single-row dry drying section of organizing.
At this, only the downside of fibrous cloth width contacts with drying drum.Therefore, fibrous cloth width can produce more serious curling tendency or coiling in this drying section.
In order to address this problem the various schemes that proposed, these schemes make the moistening tendency of curling that reduces of fibrous cloth width, yet this can influence dry effect.
Be known that use equally in the dry group of the biserial of drying section end, but this expends also.
Summary of the invention
Therefore, technical problem to be solved by this invention is to reduce or eliminate fully the curling tendency of fibrous cloth width under good breadth guiding.
Solve by such by this technical problem of the present invention, promptly, the upside of fibrous cloth width contacted with the drying drum of heating during in the end a drying was organized, and the downside of fibrous cloth width contacts with the drying drum of heating in all dry groups of arranging before, and drying drum of last dry group is listed in to dip down on the breadth traffic direction and tiltedly extends, and wherein in the end the end of a dry group be provided with the conveyer that is used for fibrous cloth width is transported to next machine section.
Owing to only use single-row dry group, so the layout in its structure is very simple.Because fibrous cloth width moves below dry zone, the drying group before placing last dry group transports waste product and also is easy to.
Because last drying group contacts the upside of the dry fibrous cloth width that directly was not dried by the drying drum with heating before that, so can significantly reduce the tendency of curling.
Inclination by last dry drying drum row of organizing improves waste product and dirt transporting from this zone.
For when throwing off, make fibrous cloth width can be promptly and therefore only with the production loss ground of minimum with the constant as far as possible speed of service once more (auffuehren) put into operation, in the end the end of a dry group is provided with one and is used for fibrous cloth width is transported to next machine section, for example the conveyer of applying device or coiler device.The breadth guiding improves thus.
By breadth residue and dirt being led away from drying drum through dry zone, make them no longer between dry zone and drying drum, be guided by device of the present invention.
When running up, the mechanical load of described fibrous cloth width increases, and when weight per unit area is big, and described dry zone is impaired very risky when disengagement.Therefore, when paper machine speed is gone up greater than 1000m/min in the station of reeling,, when being preferably greater than 1300m/min, and work as mass area ratio at 40g/m especially greater than 1200m/min
2To 180g/m
2, especially at 50g/m
2To 180g/m
2Between, preferably at 50g/m
2To 130g/m
2Between the time, be especially favourable by drying section of the present invention.
Transport similar to conveyer belt can improve like this, that is, dry zone in last dry group and fibrous cloth width respectively from one of drying drum to this drying group the common breadth running orbit of the deflector roll that is right after be level.
Yet also can be advantageously, dry zone in described last dry group and fibrous cloth width respectively from one of drying drum to this drying group the relative horizontal line of common breadth running orbit of back to back deflector roll tilt, especially also downward-sloping.The inclination angle can be in 90 ° scope and, preferably in less than 50 ° scope.
During in the end a dry group is arranged especially, especially when having more flat inclination angle, dry zone in last dry group and fibrous cloth width respectively from one of drying drum to this drying group the common breadth running orbit of back to back deflector roll can relative horizontal line smaller or equal to 90 °, preferably be no more than in 50 ° the scope and be inclined upwardly.
Advantageously, if being listed on the breadth traffic direction with vertical line, drying drum of last dry group becomes bear 20 ° of angles to positive 30 ° of scopes, extension especially vertically.
In order to limit required structure space simultaneously, at this advantageously,, extends the drying drum of the dry group of described penult if being listed on the breadth traffic direction with being inclined upwardly.
In all cases, should breadth residue and dirt be transported in the lower zone of each dry zone from drying drum by dry zone.This can continue until that breadth residue and dirt fall into the machine stack, and here breadth residue and dirt are collected by the gathering-device that is arranged in machine stack drying section end.This gathering-device for example can be a pulper.
In order to guarantee the accessibility of drying section, described drying drum preferred arrangements is above the machine stack.
In addition, consider safe breadth guiding advantageously, if the fibrous cloth width in whole drying section is constantly by belt and/or roller and/or idler.With to explicitly also advantageously, if design described breadth guiding also incessantly in preposition or rearmounted machine section, that is, be supported constantly.
In order to guarantee safe and reliable breadth guiding also importantly, under the situation that breadth is thrown off, again fibrous cloth width is put into operation rapidly.This can guarantee that this conveyer is fit to fibrous cloth width or transhipment bar are transported to next machine section of arranging higherly usually from last dry lower area of organizing by a conveyer.For the purpose of transporting, preferably cut long and narrow transhipment bar from the width of fibrous cloth width, and transport by conveyer by cutter sweep.This conveyer can be a combination that has air-blast device and/or at least one the vacuum band and/or the air ducting of wire rope traction.Especially when high speed, can not be with steel cable by the vacuum band design transporter of a plurality of continuous layouts in order for example to transport reliably.
Transhipment reliably also is from previous belt surface or roller surfaces is taken the prerequisite of fibrous cloth width or transhipment bar safely away.Pick device for example can design and have suction means and/or blowpipe, and it makes the transhipment bar break away from from given surface and therefore begins transhipment, and will transport bar guiding transporter.
In order to form the transhipment bar, in the end in last deflector roll zone that is sucked of a dry group and/or penult dry group a cutter sweep for example is set before in the drying drum zone.In the end in flexible program, fibrous cloth width is positioned on the drying drum surface contiguously.This cutter sweep preferably can be designed as water jet cutter sweep.
Situation about in the end being cut before the dry group of or penult for the transhipment bar, advantageously, if deflector roll that is sucked of last dry group has the edge extraction area that is sucked being used to transmit on the side of described transhipment bar at least at least.
With regard to the breadth guiding, another advantage is, if design the transshipment area between the dry group of penult and last the dry group like this, after making that directly at fibrous cloth width or the transhipment bar dry zone of the dry group in the crossover position place from penult carries out the transition on dry zone of last dry group, their traffic direction vector has the component in the machine run direction.Issuable thus breadth residue transports along the machine run direction, and is directed to pulper or machine stack by last dry group.Therefore, there is not the breadth residue of interference to stay in the dry group.
At this advantageously, if the traffic direction vector directly fibrous cloth width after the transition of crossover position place, have one become with vertical line greater than 0 ° and less than 180 ° of scopes in, be preferably greater than 10 ° and less than the angle in 90 ° of scopes.
Also advantageously, if dry zone of last dry group and fibrous cloth width crossover position and should back to back first deflector roll of drying group between the relative horizontal line of common breadth running orbit be no more than in 30 ° the scope, preferred 0 ° is inclined upwardly, and in being no more than 90 ° scope, preferred 30 ° downward-sloping.
In a kind of Variant Design scheme, last dry group and another drying device combination.This for example can be impinging air flash dryer (Pralllufttrockner) or irradiation drier.
Can be arranged in predrying of paper machine and/or again in the drying section by drying section of the present invention.If be arranged in predrying, drying section can directly be arranged in before the calendering and/or applying device of paper machine.Described applying device can be sizing material applying device or pigment applying device.In this case, can implement the curling correction of fibrous cloth width by last dry group.Also can compensate the influence of applying device in advance to curling.Effect by drying section of the present invention can be coordinated mutually with the influence of follow-up machine section.This can for example realize by the baking temperature of coupling drying drum during in the end a drying is organized.
Associated ground is especially advantageously put in order each drying drum of last dry group in an independent heater stages.
In order to produce better influence, the steam pressure of the drying drum of last dry group is higher than the steam pressure at least one previous each dry group.Therefore advantageously, if the pressure reduction between last and the penult drying drum between 2 to 8 crust.Especially the steam pressure of the drying drum of last dry group is preferably greater than 12 crust greater than 10 crust, and especially greater than 12.5 crust.
To revise in order improving to curl, also can in the end to use at least one highly effective drying cylinder in a dry group.Being characterized as of this highly effective drying cylinder, the tube surface that contacts with fibrous cloth width has the temperature greater than 120 ℃.This causes higher heat flow density.This heat flow density should be greater than 25kw/m
2, especially greater than 38kw/m
2, be preferably greater than 42kw/m
2
Last dry group especially at diameter of cylinder smaller or equal to 2500mm, especially smaller or equal to 1800mm, and have at least two drying drums during smaller or equal to 1500mm at diameter very especially.
In order to promote effect, the diameter of at least one drying drum of last dry group is greater than 1000mm, is preferably greater than to equal 1800mm.Especially be greater than 1800mm, especially the major diameter greater than 2500mm also can only design a drying drum.
For good power match advantageously, if additional drying device of design in dry zone in the end in dry group and the fibrous cloth width common breadth running orbit zone between the crossover position and first deflector roll that should the drying group be right after.This can be an impinging air flash dryer.
In order to stablize described breadth running orbit, can be in the end stabilising arrangement that is used for stablizing the breadth running orbit of design in dry zone in dry group and the fibrous cloth width common breadth running orbit zone between the crossover position and first deflector roll that should the drying group be right after.This stabilising arrangement can be realized by the endless belt that covers the fibrous cloth width in this zone.
In order to control or to stop the breadth residue from drying section, to fly upward everywhere, so that this breadth residue reaches in the subsequent drying group, advantageously, in the end dry a group in the zone and/or in dry group of zone of penult is provided with baffling guiding walls (Prallleitwand).This baffling guiding walls is in this such layout, makes the breadth residue be imported in pulper, the machine stack or is directed at the conveyer that is used to transport.
If in the end a drying is organized in the zone and/or is provided with at least one in dry group of zone of penult and is used to revise the attachment device that fibrous cloth width curls, and also is favourable.This device can be a damping device, nozzle humidifier for example, and seam humidifiers etc. perhaps also can be impinging air stream devices (Pralllufteinrichtung).These devices can pass through to favored area width adjustment.
Another kind of flexible program is characterised in that last dry group is arranged in the outside of drying section outer cover.This can be that main purpose realizes by the little index of aridity of drying section end and to influence curling.In this flexible program, improved the accessibility of maintenance and maintenance work.Eliminated the load that the high temperature in the outer cover causes the staff equally.The breadth running orbit can be seen and be observed at an easy rate.
Can be advantageously used in especially when the higher area proportion by drying section of the present invention, that is, at area proportion greater than 40g/m
2Or at 180g/m
2In the scope, 50g/m especially
2To 180g/m
2Between, preferably at 50g/m
2To 130g/m
2Between make copy paper or wrapping paper.At this, control breadth residue is a special challenge when breadth is thrown off.
Description of drawings
Following according to the further elaboration of Fig. 1 to 4 form of implementation of the present invention.In the accompanying drawing:
Fig. 1 is the schematic cross sectional view that has the drying section end of last three dry groups 7,8,9;
Fig. 2 is the vertical layout drawing of last dry group;
Fig. 3 is the enlarged drawing in the transmission district of a dry group end in the end;
Fig. 4 is by each possible layout drawing of drying section of the present invention in paper machine.
The specific embodiment
All dry groups 7,8,9 of drying section are made of row drying drum 3 that be arranged side by side, heating in Fig. 1, wherein, a deflector roll 4 that is sucked (besaugt) are arranged between per two drying drums 3.
At this, the form of each dry group 7,8,9 is ventilative drying grate closed loop dry zone 2 complications, guiding fibrous cloth width 1 above drying drum 3 and deflector roll 4 alternately.
Described dry zone 2 pushes fibrous cloth width 1 towards the jacket casing surface of drying drum 3 heat, thereby has improved the heat transmission to fibrous cloth width 1.
Therefore fibrous cloth width 1 aspirates deflector roll 4 outside when deflector roll 4 twines.The low pressure of conduit 4 is drawn to fibrous cloth width 1 on the dry zone 2 like this.
For this reason, deflector roll 4 has the jacket of perforation, and its inner chamber is connected with low pressure source.
In order to stablize described breadth running orbit, the recess between each drying drum 3 has pressing plate suction box 11, by this pressing plate suction box 11
Fibrous cloth width 1 between drying drum 3 and the deflector roll 4 is drawn onto on the dry zone 2.
Except drying group 9, in all dry groups 7,8, drying drum 3 is positioned at the below of fibrous cloth width 1, this means, only the downside of fibrous cloth width 1 contacts with drying drum 3 in drying group 7,8.
This makes that the downside quilt of fibrous cloth width 1 is drier, and therefore also causes the tendency of curling.
Therefore, the drying drum 3 of last dry group 9 is positioned at the top of fibrous cloth width 1, and this makes the upside of fibrous cloth width 1 contact with the jacket casing surface of drying drum 3 heat.
Can compensate the single face drying once more in this manner, and significantly reduce the tendency of curling.
Because all dry groups only have a row drying drum 3 and a dry zone 2, drying section only needs less relatively expending.
Because the dry zone 2 of operation above fibrous cloth width 1, breadth residue and dirt in the dry group 7,8 in the place ahead also can more easily be derived downwards.
In order also in the end to improve the derivation of breadth in dry group 9, the drying drum of last dry group 9 is listed in to dip down on the breadth traffic direction 12 and tiltedly extends.The inclination angle is for becoming positive 30 ° angle with vertical line in the present embodiment.
If the breadth residue drops down onto on the fibrous cloth width 1 by dry zone 2 supporting in last drying group 9, when drying drum 3 moved to deflector roll 4, this breadth residue was just exported from this deflector roll 4 at this fibrous cloth width.
When deflector roll 4 twines,, the breadth residue just can fall into machine stack 5 or also can fall on the Next section of dry group 9, moves to deflector roll 4 at fibrous cloth width 1 described in this section from drying drum 3.
In order further to improve the transportation of breadth residue and dirt, the fibrous cloth width 1 in last drying group extends to the deflector roll 4 that is right after with supporting strap 2 approximate horizontal ground from drying drum 3.
In the end of drying section, the gathering-device 6 that is used for receiving for example pulper of the dirt of deriving from final drying group 9, breadth residue etc. is arranged in machine stack 5.
Consider each element of drying section, the accessibility of drying drum 3 especially, they all are positioned at the top of machine stack 5, and therefore also on operating surface.
In order to limit the requisite space of drying section, the drying drum of the dry group 8 of penult is listed as along breadth traffic direction 12 and is inclined upwardly.Preposition drying group 7 is flatly extended.
In whole drying section, fibrous cloth width is always by cylinder 3, and roller 4 or belt 2 support, and this makes that the breadth guiding is originally fool proof when machine run speed is higher.
After drying section, with fibrous cloth width 1 guiding coiling station 10.
The flexible program of Fig. 1 shown in Figure 2.Their essential distinction is that last dry group 9 is arranged vertically.Advantageously,, the drying drum of last dry group 9 becomes bear 20 ° of extremely angles in positive 30 ° of scopes if being listed on the breadth traffic direction with vertical line, especially as shown, and extension vertically.
The drying section that has all dry groups is arranged in the inside of outer cover 21.
In order when throwing off, to make the fibrous cloth width 1 can be apace and therefore only put into operation once more with the constant as far as possible speed of service with the production loss ground of minimum, in the end the end of a dry group 9 is provided with one and is used for fibrous cloth width is sent to next machine section 10, for example the conveyer 13 in applying device or the coiler device 10.Improve the guiding of breadth thus.At this conveyer 13 is designed to the vacuum band.
Provide inclination angle " c " in Fig. 2, this angle is represented fibrous cloth width 1 and the dry zone 2 relative horizontal deviation of common breadth running orbit from drying drum 3 to the deflector roll 4 that is right after respectively in last dry group 9.Herein, this angle " c " is about 0 °.
Advantageously, the fibrous cloth width 1 in last dry group 9 tilts with the relative horizontal line of common breadth running orbit of the deflector roll 4 that dry zone 2 is right after from drying drum 3 to this drying group respectively, and is especially downward-sloping.Inclination angle " c " can be in being no more than 90 ° scope, preferably in less than 50 ° scope.
During in the end a dry group is arranged especially, especially when flat inclination angle, the fibrous cloth width 1 in last dry group 9 tilts with the relative horizontal alignment of common breadth running orbit of the deflector roll 4 that dry zone 2 is right after from drying drum 3 to this drying group 9 respectively.So, this inclination angle " c " can be preferably smaller or equal to 90 °, preferably less than pointing in 50 ° the scope.
In order to guarantee that safe and reliable breadth guiding it is also important that, under the situation that breadth is thrown off, promptly puts fibrous cloth width 1 into operation once more.Fig. 2 and Fig. 3 illustrate a conveyer 13, and this conveyer 13 is suitable for fibrous cloth width 1 or transhipment bar are taken off and be delivered to the next higher machine section of arranging usually from the lower area of last dry group 9.
For the purpose of transhipment, preferably use cutter sweep 14,15 to cut out a long and narrow transhipment bar, and adopt the conveyer transhipment from the width of fibrous cloth width.Conveyer 13 can comprise the air blast of band steel cable guider and/or the combination of at least one vacuum band and/or gas operated device.When high speed, especially can design this conveyer and be not with steel cable for transhipment reliably.Vacuum band 13 is picked up the transhipment bar from deflector roll 23 in Fig. 2, and is transported to deflector roll 24.Can continue this transhipment bar of guiding by known steel cable guider or air guide element from here.Described cutter sweep 14 is arranged in the zone of deflector roll 4 of last suction.Fibrous cloth width is positioned in cutting process on the dry zone 2.Because near conveyer 13 and pulper 6, this position is favourable.Another design is cutter sweep 15 to be arranged in last drying drum zone of the dry group 8 of penult drying group 7 before.Fibrous cloth width is located immediately on the surface of drying drum 3 at this.Described cutter sweep for example is designed to water jet cutter sweep.The residue breadth moves in the pulper when transhipment.
Transhipment reliably also is safely from previous belt surface 2 or roller surfaces 23 prerequisite of taking off fibrous cloth width 1 or transhipment bar.Situation after transporting has been shown in Fig. 2 and Fig. 3.Fibrous cloth width or transhipment bar are strained once more between drying drum 3 and deflector roll 24, and are transported to next unshowned machine zone.
Thereby pick device for example can design at the beginning of conveyer 13 and have aspirator and/or the blowpipe of taking the transhipment bar off and beginning to transport from the surface.Can cause or promote picking up of transhipment bar and/or fibrous cloth width 1 or residue breadth by aspirator and/or air-blast device 25.In order to stablize the breadth operation, see preferred this device of suction in the first area of aspirator and/or air-blast device along breadth traffic direction 12.Not far can taking off from dry zone 2 by air blast transported bar and/or fibrous cloth width 1 or residue breadth before deflector roll 24, and with their deflecting conveyers 13 or pulper 6.
Another advantage with regard to the breadth guiding is, if design the transit area between penult and last the dry group like this, so that directly described fibrous cloth width 1 or transhipment bar carried out the transition on the dry zone 2 of last dry group 9 from the dry zone 2 of the dry group 8 of penult at crossover position 20 places after, the traffic direction vector 19 of this fibrous cloth width 1 or transhipment bar had a component along the machine run direction.Thus, issuable breadth residue is carried on machine run direction 22 and is organized 9 guiding pulper 6 or machine stacks 5 by last drying.Therefore, in the drying group, can not stay the breadth residue of interference.
At this advantageously, if traffic direction vector 19 forms angle " a " with vertical line, its scope is greater than 0 ° and less than 180 °, is preferably greater than 10 ° and less than 90 °.
Equally also advantageously, if in the end dry zone 2 in dry group 9 and the fibrous cloth width 1 common breadth running orbit between the crossover position 20 and first deflector roll 4 that should drying group 9 be right after becomes angle " b " with horizontal line, it is in being no more than 30 ° scope, preferably be inclined upwardly with 0 °, and it is in being no more than 90 ° scope, preferably downward-sloping with 30 °.
For better power match advantageously, in the end in dry zone 2 in dry group 9 and the fibrous cloth width 1 common breadth running orbit zone between the crossover position 20 and first deflector roll 4 that should the drying group be right after, be provided with additional drying device 18.This drying device can be an impinging air flash dryer 18.
In order to stablize the breadth running orbit, in the end in dry zone 2 in dry group 9 and the fibrous cloth width 1 common breadth running orbit zone between the crossover position 20 and first deflector roll 4 that should the drying group be right after, be provided with the stabilising arrangement 17 that is used for stablizing the breadth running orbit.This stabilising arrangement 17 is realized by the endless belt that covers fibrous cloth width 1 in this zone in the present embodiment.In order to control or prevent that the breadth residue from outwards flying upward everywhere from drying section, cause this breadth residue to arrive next dry group, advantageously, in the end in the zone of a dry group 9 and/or in the zone of dry group 8 of penult a baffling guiding walls 16 is set.This baffling guiding walls is in this such setting, so that the breadth residue is imported pulper 6, machine stack 5 and/or is directed at the conveyer that is used to transport.
Fig. 4 illustrates a kind of paper machine, and it has forming part 27 and press section 28, and has and ensuingly be divided into predrying 29 and the drying section and the coiling portion 10 of drying section 32 again.At predrying 29 be provided with calender apparatus 30 again between the drying section 32 and be used to apply the applying device 31 of sticker and/or coating.Both can be applied in predrying by drying section of the present invention and also can be applied to again in the drying section 32.The advantage that is arranged in predrying 29 is to compensate the influence that especially one-sided coating is reeled to fibrous cloth width 1 at least in part.
Reference numerals list
1 fibrous cloth width
2 dry zones
3 drying drums
4 deflector rolls
5 machine stacks
6 gathering-devices, pulper
7,8,9 dry groups
10 machine section, the station of reeling
11 pressing plate suction boxs
12 breadth traffic directions
13 conveyers
14 cutter sweeps
15 cutter sweeps
16 baffling guiding walls
17 stabilising arrangements
18 drying devices
19 traffic direction vectors
20 crossover positions
Cover on 21 drying sections
22 machine run directions
23 deflector rolls
24 deflector rolls
25 aspirators/air-blast device
26 scrapers
27 forming parts
28 press sections
29 predrying portions
30 calenders
31 applying devices
32 drying sections again
Claims (34)
1. one kind is used for having at least two dry groups (7,8,9), the preparation paper stock width of cloth, the drying section of dry this web in the machine of cardboard web or other fibrous cloth width (1), in described dry group (7,8,9) in, described fibrous cloth width (1) is by dry zone (2) supporting of closed ring, and alternately pass through to heat, drying drum (3) that one row are arranged side by side and deflector roll (4) guiding, wherein, described dry zone (2) is towards the jacket casing surface extruding described fibrous cloth width (1) of described drying drum (3), and in each dry group (7,8,9) a certain side of only described fibrous cloth width (1) contacts with described drying (3) in, it is characterized in that, upside at fibrous cloth width (1) described in described last dry group (9) contacts with the drying drum (3) of described heating, all dry groups (7 of arranging before, the downside of fibrous cloth width 8) (1) contacts with the drying drum (3) of described heating, and the arrangement that the drying drum of described last dry group (9) is listed on the breadth traffic direction (12) moves towards downward-sloping, and wherein is provided with the conveyer (13) that is used for described fibrous cloth width (1) is transported to next machine section (10) in the end of described last dry group (9).
2. according to the described drying section of claim 1, it is characterized in that the dry zone (2) in described last dry group (9) becomes level with the common breadth running orbit of fibrous cloth width (1) when one of drying drum (3) from this drying group (9) is to back to back deflector roll (4) respectively.
3. according to the described drying section of claim 1, it is characterized in that the dry zone (2) in described last dry group (9) tilts with the common breadth running orbit relative horizontal line when one of drying drum (3) from this drying group (9) is to back to back deflector roll (4) respectively of fibrous cloth width (1).
4. according to claim 1 or 3 described drying sections, it is characterized in that the dry zone (2) in described last dry group (9) has a down dip with the common breadth running orbit relative horizontal alignment when one of drying drum (3) from this drying group (9) is to back to back deflector roll (4) respectively of fibrous cloth width (1).
5. according to the described drying section of one of claim 1 to 4, it is characterized in that, dry zone (2) in described last dry group (9) and the common breadth running orbit relative horizontal line when one of drying drum (3) from this drying group (9) is to back to back deflector roll (4) respectively of fibrous cloth width (1) are being no more than in 90 ° the scope, and be preferably downward-sloping in being no more than 50 ° scope.
6. according to the described drying section of claim 3, it is characterized in that, dry zone (2) in described last dry group (9) and the common breadth running orbit relative horizontal line when one of drying drum (3) from this drying group (9) is to back to back deflector roll (4) respectively of fibrous cloth width (1) are being no more than in 90 ° the scope, preferably are inclined upwardly in being no more than 50 ° scope.
7. according to the described drying section of claim 1, it is characterized in that the arrangement trend that the drying drum of described last dry group (9) is listed on the breadth traffic direction (12) becomes to bear 20 ° to the interior angle of positive 30 ° of scopes with vertical line.
8. according to the described drying section of claim 7, it is characterized in that the drying drum of described last dry group (9) is listed in vertically to arrange on the breadth traffic direction (12) and extends.
9. according to the described drying section of one of claim 1 to 8, it is characterized in that the arrangement that the drying drum of the dry group of described penult (8) is listed on the breadth traffic direction (12) is inclined upwardly.
10. according to the described drying section of one of claim 1 to 9, it is characterized in that the described fibrous cloth width (1) in described whole drying section is constantly by a belt (2) and/or a roller (4) and/or a cylinder (3) supporting.
11., it is characterized in that described drying drum (3) is arranged in the top of machine stack (5) according to the described drying section of one of claim 1 to 10.
12. according to the described drying section of one of claim 1 to 11, it is characterized in that, in machine stack (5), be provided with a gathering-device (6) in the end of described drying section.
13., it is characterized in that described conveyer (13) is by forming with the coefficient air-blast device of wire rope traction device and/or at least one vacuum band and/or at least one air ducting according to the described drying section of one of claim 1 to 12.
14., it is characterized in that described conveyer (13) comprises the pick device that is used for taking away from previous bearing-surface described fibrous cloth width (1) according to the described drying section of one of claim 1 to 13.
15., it is characterized in that the fibrous cloth width of being transported by described conveyer (13) (1) is designed to transport bar according to the described drying section of one of claim 1 to 14.
16., it is characterized in that the deflector roll that is sucked (4) of described at least last dry group (9) has the edge extraction area that is sucked being used to transmit on the side of described transhipment bar at least according to the described drying section of one of claim 1 to 15.
17. according to the described drying section of one of claim 1 to 16, it is characterized in that, go up and/or the dry group of described penult (8) is provided with a cutter sweep (14,15) before and is used to form the transhipment bar at last deflector roll that is sucked (4) of described last dry group (9).
18. according to the described drying section of one of claim 1 to 17, it is characterized in that, the design dry group of described penult (8) and described last drying are organized the transshipment area between (9) like this, so that directly at described fibrous cloth width (1) and/or described transhipment bar after dry zone (2) that crossover position (20) locates to carry out the transition to from the dry zone (2) of the dry group of described penult (8) described last dry group (9) is gone up, the described traffic direction vector (19) of this fibrous cloth width or transhipment bar has the component in the machine run direction.
19. according to the described drying section of claim 18, it is characterized in that, described traffic direction vector (19) and vertical line formed one greater than 0 ° and less than 180 ° of scopes in, be preferably greater than 10 ° and less than the angle in 90 ° of scopes.
20. according to the described drying section of one of claim 1 to 19, it is characterized in that, dry zone (2) and the common breadth running orbit relative horizontal line of fibrous cloth width (1) between described crossover position (20) and this back to back first deflector roll of drying group (9) (4) in described last dry group (9) are being no more than 30 °, preferably be no more than in 0 ° the scope and be inclined upwardly, and in being no more than 90 ° scope, preferred 30 ° downward-sloping.
21., it is characterized in that described last dry group (9) and another drying device combination according to the described drying section of one of claim 1 to 20.
22., it is characterized in that described drying section is arranged in predrying of paper machine and/or again in the drying section according to the described drying section of one of claim 1 to 21.
23., it is characterized in that described drying section is arranged in before the calender apparatus and/or applying device of paper machine according to the described drying section of one of claim 1 to 22.
24., it is characterized in that each drying drum (3) of described last dry group (9) is put in order in an independent heater stages according to the described drying section of one of claim 1 to 23.
25., it is characterized in that the steam pressure of the described drying drum (3) of described last dry group (9) is higher than the steam pressure at least one described previous dry group (7,8) according to the described drying section of one of claim 1 to 24.
26., it is characterized in that the steam pressure of the drying drum (3) of described last dry group (9) is preferably greater than 12 crust greater than 10 crust according to the described drying section of one of claim 1 to 25, and especially greater than 12.5 crust.
27., it is characterized in that the diameter of at least one drying drum (3) of described last dry group (9) is greater than 1000mm according to the described drying section of one of claim 1 to 26, be preferably greater than and equal 1800mm.
28. according to the described drying section of one of claim 1 to 27, it is characterized in that, in described last dry group (9), be provided with at least two drying drums (3).
29. according to the described drying section of one of claim 1 to 28, it is characterized in that, in the dry zone (2) and the common breadth running orbit zone of fibrous cloth width (1) between described crossover position (20) and this back to back first deflector roll of drying group (9) (4) in described last dry group (9), be provided with an additional drying device (18).
30. according to the described drying section of one of claim 1 to 29, it is characterized in that, in dry zone (2) and the common breadth running orbit zone of fibrous cloth width (1) between described crossover position (20) and this back to back first deflector roll of drying group (9) (4) in described last dry group (9), be provided with a stabilising arrangement (17) that is used for stablizing the breadth running orbit.
31. according to the described drying section of one of claim 1 to 30, it is characterized in that, in described last dry group (9) zone and/or in the dry group of described penult (8) zone, a baffling guiding walls (16) be set.
32. according to the described drying section of one of claim 1 to 31, it is characterized in that, in described last dry group (9) zone and/or in the dry group of described penult (8) zone, be provided with at least one and be used to revise the curling attachment device of described fibrous cloth width (1).
33., it is characterized in that described last dry group (9) is arranged in the outside of outer cover (21) according to the described drying section of one of claim 1 to 32.
34. use according to the described drying section of one of claim 1 to 33, the speed that is particularly useful on the station of reeling surpasses 1000m/min and weight per unit area more than or equal to 40g/m
2Copy paper or wrapping paper are made in ground.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008000133A DE102008000133A1 (en) | 2008-01-23 | 2008-01-23 | drying section |
| DE102008000133.3 | 2008-01-23 | ||
| PCT/EP2008/066871 WO2009092485A1 (en) | 2008-01-23 | 2008-12-05 | Drier section |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101925703A true CN101925703A (en) | 2010-12-22 |
| CN101925703B CN101925703B (en) | 2012-08-22 |
Family
ID=40578707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008801254629A Active CN101925703B (en) | 2008-01-23 | 2008-12-05 | Drier section |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2240640B1 (en) |
| CN (1) | CN101925703B (en) |
| DE (1) | DE102008000133A1 (en) |
| WO (1) | WO2009092485A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102713055A (en) * | 2010-07-14 | 2012-10-03 | 安德里茨技术资产管理有限公司 | A method of drying a cellulose pulp web and an arrangement for drying such a web |
| CN103958771A (en) * | 2011-11-25 | 2014-07-30 | 沃依特专利有限责任公司 | Method for transferring a material web from a drying arrangement to a downstream functional unit, and drying device |
| CN106996051A (en) * | 2015-11-09 | 2017-08-01 | 维美德技术有限公司 | Production line for producing fiber web |
| CN108221450A (en) * | 2016-12-21 | 2018-06-29 | 福伊特专利有限公司 | For running the method for heating group subsystem and heating group subsystem |
| CN112567094A (en) * | 2018-08-09 | 2021-03-26 | 福伊特专利有限公司 | Machine and method for producing a corrugated cardboard base web |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009046425A1 (en) | 2009-11-05 | 2011-05-12 | Voith Patent Gmbh | Device for producing a material web |
| DE102011087095A1 (en) | 2011-11-25 | 2013-05-29 | Voith Patent Gmbh | Method for transferring a material web from a drying arrangement to a downstream functional unit and drying device |
| EP2722438A1 (en) * | 2012-10-18 | 2014-04-23 | Metso Paper Inc. | Method and apparatus for drying a fibrous web |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI82097C (en) * | 1989-02-17 | 1991-01-10 | Valmet Paper Machinery Inc | Multi-cylinder dryer in a paper machine |
| DE9017390U1 (en) * | 1990-12-22 | 1991-03-28 | J.M. Voith Gmbh, 7920 Heidenheim | Dry section |
| US5600897A (en) * | 1993-08-06 | 1997-02-11 | J.M. Voith Gmbh | Mixed dryer section including single-tier and double-tier drying groups with automatic ropeless threading |
| FI105935B (en) * | 1996-12-03 | 2000-10-31 | Valmet Corp | Method for drying paper and dry end of paper machine |
| FI112266B (en) * | 1997-04-11 | 2003-11-14 | Metso Paper Inc | Ceramic coated press roll for difficult corrosion conditions, roll manufacturing method and coating composition |
| US6425981B1 (en) * | 1999-12-16 | 2002-07-30 | Metso Paper Karlstad Aktiebolg (Ab) | Apparatus and associated method for drying a wet web of paper |
| DE10115618A1 (en) * | 2001-03-26 | 2002-10-02 | Voith Paper Patent Gmbh | Method and device for transferring a web |
| DE10149563A1 (en) * | 2001-10-08 | 2003-04-10 | Voith Paper Patent Gmbh | web guide |
-
2008
- 2008-01-23 DE DE102008000133A patent/DE102008000133A1/en not_active Withdrawn
- 2008-12-05 WO PCT/EP2008/066871 patent/WO2009092485A1/en active Application Filing
- 2008-12-05 EP EP08871429.0A patent/EP2240640B1/en active Active
- 2008-12-05 CN CN2008801254629A patent/CN101925703B/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102713055A (en) * | 2010-07-14 | 2012-10-03 | 安德里茨技术资产管理有限公司 | A method of drying a cellulose pulp web and an arrangement for drying such a web |
| CN103958771A (en) * | 2011-11-25 | 2014-07-30 | 沃依特专利有限责任公司 | Method for transferring a material web from a drying arrangement to a downstream functional unit, and drying device |
| CN103958771B (en) * | 2011-11-25 | 2016-08-17 | 沃依特专利有限责任公司 | Material web is transported to from drying device method and the drying equipment of downstream functional unit |
| CN106996051A (en) * | 2015-11-09 | 2017-08-01 | 维美德技术有限公司 | Production line for producing fiber web |
| CN106996051B (en) * | 2015-11-09 | 2019-10-18 | 维美德技术有限公司 | For producing the production line of fiber web |
| CN108221450A (en) * | 2016-12-21 | 2018-06-29 | 福伊特专利有限公司 | For running the method for heating group subsystem and heating group subsystem |
| CN108221450B (en) * | 2016-12-21 | 2019-11-12 | 福伊特专利有限公司 | For running the method and heating group subsystem of heating group subsystem |
| CN112567094A (en) * | 2018-08-09 | 2021-03-26 | 福伊特专利有限公司 | Machine and method for producing a corrugated cardboard base web |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2240640B1 (en) | 2017-07-12 |
| DE102008000133A1 (en) | 2009-07-30 |
| WO2009092485A1 (en) | 2009-07-30 |
| EP2240640A1 (en) | 2010-10-20 |
| CN101925703B (en) | 2012-08-22 |
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