CN103669088A - Front drying system used for multi-cylinder long mesh paper machine - Google Patents
Front drying system used for multi-cylinder long mesh paper machine Download PDFInfo
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- CN103669088A CN103669088A CN201210334561.6A CN201210334561A CN103669088A CN 103669088 A CN103669088 A CN 103669088A CN 201210334561 A CN201210334561 A CN 201210334561A CN 103669088 A CN103669088 A CN 103669088A
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- 238000001035 drying Methods 0.000 title claims abstract description 133
- 230000005540 biological transmission Effects 0.000 claims description 7
- 230000002708 enhancing effect Effects 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 4
- 239000002356 single layer Substances 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 229920001131 Pulp (paper) Polymers 0.000 abstract description 8
- 239000003292 glue Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 239000000945 filler Substances 0.000 description 17
- 235000012241 calcium silicate Nutrition 0.000 description 5
- 230000006872 improvement Effects 0.000 description 4
- 238000004513 sizing Methods 0.000 description 4
- 229910052918 calcium silicate Inorganic materials 0.000 description 3
- 239000000378 calcium silicate Substances 0.000 description 3
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000002355 dual-layer Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007645 offset printing Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The invention discloses a front drying system used for a multi-cylinder long mesh paper machine, and belongs to the field of accessories of paper making equipment. The total number of drying cylinders of the front drying system is increased by 10%-50% than that of drying cylinders of a front drying portion of a traditional front drying system with the same width and the same vehicle speed. A reinforced drying device can be arranged at an outlet of a front drying portion; high padding paper pulp can be made into paper meeting standard requirements; the front drying system has the advantages that drying time is long, the drying effect is good, paper can be sufficiently dried and dehydrated, follow-up glue applying of paper is facilitated, and quality of finished product paper is high; problems of the traditional front drying system are solved; the front drying system is one of the important procedures in successful development of the multi-cylinder long mesh paper machine used for production of high padding paper pulp.
Description
Technical field
The invention discloses a kind of for the front drying system on multi-cylinder long mesh paper machine, belong to paper making equipment accessory field, be suitable for being used on the multi-cylinder long mesh paper machine of high filler paper production, be particularly suitable for being used in and using on the multi-cylinder long mesh paper machine of active calcium silicate as papermaking filler.
Background technology
Paper-making industry is that China Today (the Ye Shi world) consumes also one of large industry of the large and actual demand amount of Environmental costs, although Internet technology is advanced by leaps and bounds, but be accompanied by the develop rapidly of China's economic and global economy continue advance, China and the world do not change the aggregate demand of paper product, also slightly increase, demand to paper product, mean the demand to paper making pulps, and prepare the forest growth rate of paper making pulps far below the requirement consumes speed of paper making pulps, under the constant prerequisite of paper products total output, how to reduce paper making pulps consumption, and can produce high-quality paper, that one global problem pendulum is in face of the mankind.
Untie early this road difficult problem, significant to China.At present, the most of dependence on import of China's paper making pulps, import pulp amount has leapt to the first in the world, from strategic angle, the papermaking of China " with slurry " is in fact the use of " limited ", if You Yitian world wood pulp supply chain supply shortage, China is by " with slurry " the exhausted problem in the face of fearful, can directly threaten national security stable, the forest reserves of China are very limited, be difficult to the own paper product of reply and supply with, the China that does not first analyze today is here one of paper product state in short supply of maximum in the world still.
Based on above-mentioned, people are studying always and are finding high filler paper production technology and production equipment thereof, to untiing early an above-mentioned difficult problem.
Paper machine is the equipment of combining of paper making, and traditional paper machine mainly contains three types: long mesh paper making machine, cylinder mould machine, foudrinier.Wherein long mesh paper making machine is a kind of widely used paper machine type, and most paper grades of can manufacturing paper with pulp, is the mainstream model of paper machine.
As shown in Figure 1,3, the front drying system of traditional multi-cylinder long mesh paper machine, only has front baking cadre 4, front baking cadre 4 mainly adopts Dual-layer spread pattern by several drying cylinders 11, upper and lower two-layer drying cylinder 11 all disposes dryer felt or dry net, dryer felt (net) is leading paper web around drying cylinder 11 operations, and paper web is pressed on to drying cylinder 11 surfaces, carries out contact drying.Each drying cylinder 11 is furnished with admission and condensed water discharging device and dryer scraper.Contraction according to different paper kinds in dry run, front baking cadre 4 drying cylinder 11 will carry out certain grouping, and the quantity of adapted dryer felt (net) accordingly.Every group of drying cylinder 11 has each of upper and lower dryer felt (net).Every dryer felt (net) is provided with and leads accordingly blanket (net) roller, corrector roll and idler roller.For reducing the moisture in dryer felt, normally every dryer felt configures one or two baking blanket cylinders, for dry net, need not configure.End at front drying device arranges 1-2 cooling cylinder conventionally, makes paper web rewetting, has plasticity, to improve the calendaring effect.In addition, front baking cadre also comprises steam-supplying system, ventilation unit, lubricating system, paper guiding device and frame and transmission device etc.Taking three row drying cylinders 11 of double extension is one group, by drying cylinder driving-chain 13, connects, and carries out frequency variable synchronous transmission; It is arranged on use state on paper machine as shown in Figure 3.
In the process that high filler (as: calcium silicates) paper pulp is produced, there is following problem in above-mentioned front drying system:
1, l Water Paper page is short in the front drying system region time of staying, and bake out temperature is low, and paper drying and dehydrating degree is not enough, is unfavorable for the follow-up applying glue of paper, can not ensure the operation steady in a long-term of whole paper machine system.
2, because the calcium silicate filling material in high filler paper pulp is loose pore structure, moisture is difficult for by directly volatilization of heating, and the direct heating, drying mode of the double drying cylinder that before tradition, drying system adopts has caused high filler paper dewatering speed slow, paper expansion and contraction is larger, page drying effect is poor, is unfavorable for the subsequent treatment such as paper sizing.
How solving drying system problem before tradition, is one of people's important step of successfully developing the multi-cylinder long mesh paper machine of producing for high filler paper, is people's problems in the urgent need to address.
Summary of the invention
The object of this invention is to provide a kind of for the front drying system on multi-cylinder long mesh paper machine, it can manufacture standard compliant paper by high filler paper pulp, the feature that have drying time length, good drying effect, paper drying and dehydrating foot, facilitate the follow-up applying glue of paper, finished paper quality is high.
The object of the present invention is achieved like this: a kind of for the front drying system on multi-cylinder long mesh paper machine, the total quantity of the more equal fabric width of total quantity of the front baking cadre's of front drying system drying cylinder and the conventional paper machines front baking cadre's of the speed of a motor vehicle drying cylinder increases 10%-50%;
Front baking cadre's drying cylinder adopts monolayer alignment form, and every drying cylinder bottom coordinates one watt gram of cylinder, by drying cylinder driving-chain, connects, and carries out frequency variable synchronous transmission;
Drying cylinder takes 3 to 6 to be divided into one group, can be specifically 3 and be one group, 4 and be divided into one group, 5 and be divided into one group, 6 and be divided into one group; Front baking cadre's drying cylinder is divided into 6 to 12 groups;
In front baking cadre exit, there is enhancing drying unit, strengthening drying unit can be far-infrared baking oven, steam chest etc.
Advantage of the present invention is: because the front baking make-up of the executive personnel in front drying system of the present invention is adjusted, drying cylinder quantity increases, drying cylinder is taked the structure of single extension and one group of transmission of dividing into groups of 3-6 row, whole front drying system drying capacity is strengthened, be easier to paper in the transmission of oven dry portion and dry, solved the problem that traditional front drying system can not be to the abundant drying and dehydrating of high filler paper;
Because front drying system of the present invention has installed reinforcement drying unit (IR bake, steam chest etc.) additional in front baking cadre exit, thereby make high filler paper after going out front baking cadre, carried out again forcing to dry, guarantee that paper meets the requirements of mass dryness fraction, simultaneously, also having guaranteed has certain temperature before paper enters applying glue, has improved applying glue quality;
Due to the improvement of front drying system said structure, when having solved high filler paper drying system having been produced before tradition, drying and dewatering deficiency, while entering sizing applicator, moisture content is too high affects in applying glue quality, production process the problems such as easily broken paper;
Because front drying system of the present invention is optimized structural design cleverly, compare with drying system before traditional paper machine, can be for the production of traditional cultural paper, can be used for again producing and add all types of paper of having filled out active calcium silicate filler, fertile paper mold mainly includes but not limited to following paper kind: the cultural papers such as electro-photographic paper, offset printing paper, light paper, newsprint, the quantitative scope of producing paper is 30-120g/m
2; Solve traditional front drying system and be only suitable for producing non-high filler paper using, can not be suitable for well producing the problem of high filler paper using;
Due to the improvement of front drying system structure of the present invention, greatly improved the ability that multi-cylinder long mesh paper machine is produced high filler (as: calcium silicates) paper, part has solved conventional paper machines and can not be applicable to well the problem that high filler paper pulp is produced.
Accompanying drawing explanation
Fig. 1 is drying system structural representation before tradition;
Drying system structural representation before Fig. 2 the present invention institute;
Fig. 3 is that before tradition, drying system is arranged on the use view on paper machine;
Fig. 4 front drying system of the present invention is arranged on the use view on paper machine;
In figure: head box 1, wet end 2, press section 3, front baking cadre 4, sizing applicator 5, post-drying portion 6, calender 7, coil paper portion 8, frame 9, enhancing drying unit 10, drying cylinder 11, watt gram cylinder 12, drying cylinder driving-chain 13;
Below by accompanying drawing, to of the present invention, a kind ofly for the front drying system structure on multi-cylinder long mesh paper machine, be described in further details in conjunction with the embodiments.
The specific embodiment
Embodiment 1
As shown in Figure 2,4, of the present invention a kind of for the front drying system on multi-cylinder long mesh paper machine, it has front baking cadre 4 and strengthens drying unit 10;
As shown in Figure 3,4, drying system region growing before the tradition of the relatively equal fabric width in front drying system region and the speed of a motor vehicle;
The total quantity of the more equal fabric width of total quantity of front baking cadre 4 drying cylinder 11 and traditional front baking cadre's drying cylinder 11 of the speed of a motor vehicle increases 10%-50%;
As shown in Figure 2, some drying cylinders 11 of front baking cadre 4 adopt monolayer alignment form, every drying cylinder 11 bottoms coordinate one watt gram of cylinder 12 to strengthen dehydration, drying cylinder 11 takes 3 to 6 to be divided into one group (what in Fig. 2, show is that 5 drying cylinders are classified one group as, front baking cadre 4 can have 6-12 group, according to different paper product requirements, can select 6 groups, 7 groups, 8 groups ..., 10 groups, 11 groups, 12 groups, by drying cylinder driving-chain 13, connect, carry out frequency variable synchronous transmission;
Drying cylinder 11 under this arrangement architecture is control effectively, guarantee every group of drying cylinder synchronous operation, can greatly reduce the probability that production process is interrupted paper; The temperature of controlling drying cylinder 11, makes paper in drying cylinder traveling process, have best evaporation efficiency and best dehydrating effect;
As shown in Figure 2,4, front drying system of the present invention, in front baking cadre 4 exits, has the drying unit 10 of enhancing;
The installment state of front drying system of the present invention on paper machine as shown in Figure 4, head box 1, wet end 2, press section 3, front drying system (front baking cadre 4, enhancing drying unit 10), sizing applicator 5, post-drying portion 6, calender 7, coil paper portion 8 orders are arranged in frame 9, form paper machine.
Embodiment 2
Of the present invention a kind of for the front drying system on multi-cylinder long mesh paper machine, it has front baking cadre 4, and front baking cadre 4 structure is identical with embodiment 1, does not strengthen drying unit 10.
This front drying system structure of the present invention is compared with drying system before tradition, has solved traditional front drying system and has been unsuitable for the problem that high filler paper pulp is produced.
Content of the present invention is not limited in content described in the present embodiment.
Applied specific case herein structure of the present invention and embodiment are set forth, the explanation of above embodiment is just for helping to understand core concept of the present invention.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of the claims in the present invention.
Claims (10)
1. for the front drying system on multi-cylinder long mesh paper machine, it is characterized in that: before the more equal fabric width of total quantity of the front baking cadre's of front drying system (4) drying cylinder (11) and the tradition of the speed of a motor vehicle, the total quantity of the front baking cadre's (4) of drying system drying cylinder (11) increases 10%-50%.
2. as claimed in claim 1 a kind of for the front drying system on multi-cylinder long mesh paper machine, it is characterized in that: front baking cadre's (4) drying cylinder (11) adopts monolayer alignment form, every drying cylinder (11) bottom coordinates one watt gram of cylinder (12), by drying cylinder driving-chain (13), connect, carry out frequency variable synchronous transmission.
3. as claimed in claim 2 a kind of for the front drying system on multi-cylinder long mesh paper machine, it is characterized in that: drying cylinder (11) takes 3 to 6 to be divided into one group.
4. as claimed in claim 3 a kind of for the front drying system on multi-cylinder long mesh paper machine, it is characterized in that: drying cylinder (11) takes 3 to be one group.
5. as claimed in claim 3 a kind of for the front drying system on multi-cylinder long mesh paper machine, it is characterized in that: drying cylinder (11) takes 4 to be divided into one group.
6. as claimed in claim 3 a kind of for the front drying system on multi-cylinder long mesh paper machine, it is characterized in that: drying cylinder (11) takes 5 to be divided into one group.
7. as claimed in claim 3 a kind of for the front drying system on multi-cylinder long mesh paper machine, it is characterized in that: drying cylinder (11) takes 6 to be divided into one group.
8. a kind of for the front drying system on multi-cylinder long mesh paper machine as described in claim 1 or 2 or 3 or 4 or 5 or 6 or 7, is characterized in that: front baking cadre's (4) drying cylinder is divided into 6 to 12 groups.
9. a kind of for the front drying system on multi-cylinder long mesh paper machine as described in claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8, is characterized in that: in front baking cadre (4) exit, have enhancing drying unit (10).
10. as claimed in claim 9 a kind of for the front drying system on multi-cylinder long mesh paper machine, it is characterized in that: strengthening drying unit (10) is far-infrared baking oven or steam chest.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210334561.6A CN103669088A (en) | 2012-09-10 | 2012-09-10 | Front drying system used for multi-cylinder long mesh paper machine |
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| CN201210334561.6A CN103669088A (en) | 2012-09-10 | 2012-09-10 | Front drying system used for multi-cylinder long mesh paper machine |
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| CN103669088A true CN103669088A (en) | 2014-03-26 |
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| CN201210334561.6A Pending CN103669088A (en) | 2012-09-10 | 2012-09-10 | Front drying system used for multi-cylinder long mesh paper machine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112127197A (en) * | 2020-09-30 | 2020-12-25 | 湖北中烟工业有限责任公司 | An infrared radiation heating paper drying control system |
| CN112127200A (en) * | 2020-09-30 | 2020-12-25 | 湖北中烟工业有限责任公司 | A humidification system for humidifying inner lining paper with saturated steam |
| CN116024837A (en) * | 2022-12-27 | 2023-04-28 | 安徽佳诚环保科技有限公司 | Multi-directional drying equipment and drying method for fourdrinier paper machine |
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| CN102433796A (en) * | 2011-10-20 | 2012-05-02 | 国能纸业有限公司 | High filler paper and production method thereof |
| CN202830630U (en) * | 2012-09-10 | 2013-03-27 | 国能纸业有限公司 | Pre-drying system for multi-cylinder long mesh paper machine |
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2012
- 2012-09-10 CN CN201210334561.6A patent/CN103669088A/en active Pending
Patent Citations (7)
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|---|---|---|---|---|
| CN1134997A (en) * | 1995-02-01 | 1996-11-06 | 韦尔梅特公司 | Method for producing surface-treated paper and dry end of paper machine |
| CN1251629A (en) * | 1997-03-27 | 2000-04-26 | 韦尔梅特公司 | Method for control of curl of paper in dryer section of paper machine and paper or board machine |
| DE102007027269A1 (en) * | 2006-06-13 | 2007-12-20 | Metso Paper, Inc. | Control of the undulating tendency of a paper-making fiber web in a paper/cardboard machine, comprises determining specified moisture content behind the drying section, and measuring mass per unit area and moisture content of the fiber web |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112127197A (en) * | 2020-09-30 | 2020-12-25 | 湖北中烟工业有限责任公司 | An infrared radiation heating paper drying control system |
| CN112127200A (en) * | 2020-09-30 | 2020-12-25 | 湖北中烟工业有限责任公司 | A humidification system for humidifying inner lining paper with saturated steam |
| CN116024837A (en) * | 2022-12-27 | 2023-04-28 | 安徽佳诚环保科技有限公司 | Multi-directional drying equipment and drying method for fourdrinier paper machine |
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