CN202830630U - Pre-drying system for multi-cylinder long mesh paper machine - Google Patents
Pre-drying system for multi-cylinder long mesh paper machine Download PDFInfo
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- CN202830630U CN202830630U CN 201220459950 CN201220459950U CN202830630U CN 202830630 U CN202830630 U CN 202830630U CN 201220459950 CN201220459950 CN 201220459950 CN 201220459950 U CN201220459950 U CN 201220459950U CN 202830630 U CN202830630 U CN 202830630U
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- 238000001035 drying Methods 0.000 title claims abstract description 143
- 230000005540 biological transmission Effects 0.000 claims description 7
- 230000002708 enhancing effect Effects 0.000 claims description 6
- 238000005728 strengthening Methods 0.000 claims description 6
- 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
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 229920001131 Pulp (paper) Polymers 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 230000018044 dehydration Effects 0.000 abstract description 2
- 238000006297 dehydration reaction Methods 0.000 abstract description 2
- 238000004026 adhesive bonding Methods 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 239000000945 filler Substances 0.000 description 17
- 235000012241 calcium silicate Nutrition 0.000 description 5
- 239000003292 glue Substances 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
- 238000000034 method Methods 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
- 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
- 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
- 238000002360 preparation method Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The utility model discloses a pre-drying system for a multi-cylinder long mesh paper machine, and belongs to the field of papermaking equipment accessories. Compared with total quantity of drying cylinders of a pre-drying portion of a traditional pre-drying system with the same width and speed, the total quantity of drying cylinders of the pre-drying system for the multi-cylinder long mesh paper machine is increased by 10%-50%. A reinforced drying device can be arranged at an outlet port of the pre-drying portion. The pre-drying system for the multi-cylinder long mesh paper machine enables highly filled paper pulp to be manufactured into paper up to standard, and has the advantages of being long in drying time, good in drying effects, good in quality of finished paper, and facilitating follow-up gluing of the paper, and the paper is sufficient in drying and dehydration. The pre-drying system for the multi-cylinder long mesh paper machine overcomes the defects of the traditional pre-drying system and is an important link for successful development of the multi-cylinder long mesh paper machine applied to production of highly filled paper by people.
Description
Technical field
The utility model discloses a kind of for the front drying system on the 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 on the multi-cylinder long mesh paper machine of active calcium silicate as papermaking filler.
Background technology
Paper-making industry is that China Today (also being the 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 the forest growth rate of preparation paper making pulps is far below the requirement consumes speed of paper making pulps, under the constant prerequisite of paper products total output, how reducing the paper making pulps consumption, and can produce high-quality paper, has been 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, the 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 world's wood pulp supply chain supply shortage in a day is arranged, China will be in the face of fearful " with slurry " exhausted problem, 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 analyze first today here is one of paper product state in short supply of maximum in the world still.
Based on above-mentioned, people are studying always and are seeking high filler paper production technology and production equipment thereof, to untiing early an above-mentioned difficult problem.
Paper machine is the equipment of uniting 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.
Shown in Fig. 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 the Dual-layer spread pattern by several drying cylinders 11, two-layer drying cylinder 11 all disposes dryer felt or dried net up and down, dryer felt (net) is leading paper web around drying cylinder 11 operations, and paper web is pressed on drying cylinder 11 surfaces, carries out contact drying.Each drying cylinder 11 is furnished with admission and condensed water discharging device and dryer scraper.According to the contraction of 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.Dryer felt (net) was each one about every group of drying cylinder 11 had.Every dryer felt (net) is provided with and leads accordingly blanket (net) roller, corrector roll and idler roller.For reducing the moisture in the dryer felt, normally every dryer felt configures one or two baking blanket cylinders, then need not configure for dried net.End at front drying device arranges 1-2 cooling cylinder usually, paper web is returned wet, has plasticity, to improve the calendaring effect.In addition, the 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, connects by drying cylinder driving-chain 13, carries out the frequency variable synchronous transmission; It is installed on the paper machine the use state as shown in Figure 3.
There is following problem in above-mentioned front drying system in the process that high filler (as: calcium silicates) paper pulp is produced:
1, the l Water Paper page or leaf is short in the front drying system zone 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 the 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 drying system adopts before the tradition has caused high filler paper dewatering speed slow, the paper expansion and contraction is larger, the page drying effect is poor, is unfavorable for the subsequent treatment such as paper sizing.
How solving drying system problem before the 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 purpose of this utility model provides a kind of for the front drying system on the multi-cylinder long mesh paper machine, it can manufacture standard compliant paper with high filler paper pulp, the characteristics that have drying time length, good drying effect, paper drying and dehydrating foot, make things convenient for the follow-up applying glue of paper, the finished paper quality are high.
The purpose of this utility model is achieved in that a kind of for the front drying system on the multi-cylinder long mesh paper machine, and the total quantity of the conventional paper machines front baking cadre's of the more equal fabric width of the total quantity of the front baking cadre's of front drying system drying cylinder and the speed of a motor vehicle drying cylinder increases 10%-50%:
Front baking cadre's drying cylinder adopts the monolayer alignment form, and every drying cylinder bottom cooperates a watt of gram cylinder, connects by the drying cylinder driving-chain, carries out the frequency variable synchronous transmission;
Drying cylinder takes 3 to 6 to be divided into one group, specifically can be 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, the enhancing drying unit is arranged, strengthening drying unit can be far-infrared baking oven, steam chest etc.
The utility model has the advantages that: because the front baking make-up of the executive personnel in the front drying system described in the utility model 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, so that whole front drying system drying capacity strengthens, be easier to paper in transmission and the drying of oven dry section, having solved traditional front drying system can not be to the problem of the abundant drying and dehydrating of high filler paper;
Because front drying system described in the utility model has installed reinforcement drying unit (IR bake, steam chest etc.) additional in front baking cadre exit, thereby namely being carried out again, high filler paper forces oven dry after going out the front baking cadre, guarantee that paper meets the requirements of mass dryness fraction, simultaneously, also having guaranteed has certain temperature before paper enters applying glue, has improved the applying glue quality;
Because 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, when advancing sizing applicator, moisture content is too high to affect in applying glue quality, the production process problem such as easily broken paper;
Because front drying system described in the utility model is optimized cleverly structural design, 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 the 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
2Solve traditional front drying system and only be suitable for producing non-high filler paper using, can not be suitable for well producing the problem of high filler paper using;
Because the improvement of front drying system structure described in the utility model, 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 can not be fit to problem that high filler paper pulp is produced well.
Description of drawings
Fig. 1 is drying system structural representation before the tradition;
Drying system structural representation before Fig. 2 the utility model institute;
Fig. 3 is that the front drying system of tradition is installed in the use view on the paper machine;
Fig. 4 front drying system described in the utility model is installed in the use view on the paper machine;
Among the figure: head box 1, wet end 2, press section 3, front baking cadre 4, sizing applicator 5, post-drying section 6, calender 7, coil paper section 8, frame 9, enhancing drying unit 10, drying cylinder 11, watt gram cylinder 12, drying cylinder driving-chain 13;
A kind ofly be described in further details for the front drying system structure on the multi-cylinder long mesh paper machine described in the utility model in conjunction with the embodiments below by accompanying drawing.
The specific embodiment
Embodiment 1
Shown in Fig. 2,4, described in the utility model a kind of for the front drying system on the multi-cylinder long mesh paper machine, it has front baking cadre 4 and strengthens drying unit 10;
Shown in Fig. 3,4, drying system region growing before the tradition of the relatively equal fabric width in front drying system zone 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 the monolayer alignment form, every drying cylinder 11 bottoms cooperate a watt of gram cylinder 12 to strengthen dehydration, drying cylinder 11 takes 3 to 6 to be divided into one group (what show among Fig. 2 is that 5 drying cylinders are classified one group as, front baking cadre 4 can have the 6-12 group, according to different paper product requirements, can select 6 groups, 7 groups, 8 groups ..., 10 groups, 11 groups, 12 groups, connect by drying cylinder driving-chain 13, carry out the 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 control drying cylinder 11 is so that paper has best evaporation efficiency and best dehydrating effect in the drying cylinder traveling process;
Shown in Fig. 2,4, front drying system described in the utility model has the drying unit 10 of enhancing in front baking cadre 4 exits;
The installment state of front drying system described in the utility model on the 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 section 6, calender 7, coil paper section 8 orders are installed on the frame 9, consist of the paper machine.
Embodiment 2
Described in the utility model a kind of it has front baking cadre 4 for the front drying system on the multi-cylinder long mesh paper machine, and front baking cadre 4 structure is identical with embodiment 1, does not strengthen drying unit 10.
This front drying system structure described in the utility model is compared with drying system before the tradition, has solved traditional front drying system and has been unsuitable for problem that high filler paper pulp is produced.
Content described in the utility model is not limited in the described content of the present embodiment.
Used specific case herein the utility model structure and embodiment are set forth, the explanation of above embodiment just is used for helping to understand core concept of the present utility model.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (14)
1. a front drying system that is used on the multi-cylinder long mesh paper machine is characterized in that: the total quantity increase 10%-50% of the front baking cadre's (4) of drying system drying cylinder (11) before the tradition of the more equal fabric width of total quantity of the front baking cadre's of front drying system (4) drying cylinder (11) and the speed of a motor vehicle.
2. as claimed in claim 1 a kind of for the front drying system on the multi-cylinder long mesh paper machine, it is characterized in that: front baking cadre's (4) drying cylinder (11) adopts the monolayer alignment form, every drying cylinder (11) bottom cooperates a watt of gram cylinder (12), connect by drying cylinder driving-chain (13), carry out the frequency variable synchronous transmission.
3. as claimed in claim 2 a kind of for the front drying system on the 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 the 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 the 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 the 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 the multi-cylinder long mesh paper machine, it is characterized in that: drying cylinder (11) takes 6 to be divided into one group.
8. such as claim 1 or 2 or 3 or 4 or 5 or 6 or 7 described a kind of for the front drying system on the multi-cylinder long mesh paper machine, it is characterized in that: front baking cadre's (4) drying cylinder is divided into 6 to 12 groups.
9. such as claim 1 or 2 or 3 or 4 or 5 or 6 or 7 described a kind of for the front drying system on the multi-cylinder long mesh paper machine, it is characterized in that: in front baking cadre (4) exit, enhancing drying unit (10) is arranged.
10. as claimed in claim 8 a kind of for the front drying system on the multi-cylinder long mesh paper machine, it is characterized in that: in front baking cadre (4) exit, enhancing drying unit (10) is arranged.
11. as claimed in claim 9 a kind of for the front drying system on the multi-cylinder long mesh paper machine, it is characterized in that: strengthening drying unit (10) is far-infrared baking oven.
12. as claimed in claim 9 a kind of for the front drying system on the multi-cylinder long mesh paper machine, it is characterized in that: strengthening drying unit (10) is steam chest.
13. as claimed in claim 10 a kind of for the front drying system on the multi-cylinder long mesh paper machine, it is characterized in that: strengthening drying unit (10) is far-infrared baking oven.
14. as claimed in claim 10 a kind of for the front drying system on the multi-cylinder long mesh paper machine, it is characterized in that: strengthening drying unit (10) is steam chest.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220459950 CN202830630U (en) | 2012-09-10 | 2012-09-10 | Pre-drying system for multi-cylinder long mesh paper machine |
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| CN 201220459950 CN202830630U (en) | 2012-09-10 | 2012-09-10 | Pre-drying system for multi-cylinder long mesh paper machine |
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| CN202830630U true CN202830630U (en) | 2013-03-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669088A (en) * | 2012-09-10 | 2014-03-26 | 国能纸业有限公司 | Front drying system used for multi-cylinder long mesh paper machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669088A (en) * | 2012-09-10 | 2014-03-26 | 国能纸业有限公司 | Front drying system used for multi-cylinder long mesh paper machine |
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Granted publication date: 20130327 Termination date: 20190910 |