CN202830632U - Post-drying system for multi-cylinder long mesh paper machine - Google Patents
Post-drying system for multi-cylinder long mesh paper machine Download PDFInfo
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- CN202830632U CN202830632U CN 201220459963 CN201220459963U CN202830632U CN 202830632 U CN202830632 U CN 202830632U CN 201220459963 CN201220459963 CN 201220459963 CN 201220459963 U CN201220459963 U CN 201220459963U CN 202830632 U CN202830632 U CN 202830632U
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Abstract
The utility model discloses a post-drying system for a multi-cylinder long mesh paper machine, and belongs to the field of papermaking equipment accessories. The post-drying system is suitable for production of highly filled paper pulp. Compared with total quantity of drying cylinders of a post-drying portion of a traditional paper machine with the same width and speed, the total quantity of drying cylinders of a post-drying portion of the multi-cylinder long mesh paper machine is increased by 20%-50%. A reinforced drying device can be arranged at an inlet port of the post-drying portion. The post-drying system for the multi-cylinder long mesh paper machine enables the highly filled paper pulp to be manufactured into usable paper, and has the advantages of being long in drying time, good in drying efficiency, favorable for press polish, good in quality of finished paper, and capable of ensuring long-term stable operation of the whole paper machine, and the paper is sufficient in drying and dehydration. The post-drying system for the multi-cylinder long mesh paper machine overcomes the defect of a traditional post-drying system applied to production of the highly filled paper pulp.
Description
Technical field
The utility model discloses a kind of for the post-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, it is stable directly to threaten national security, 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, untie early an above-mentioned difficult problem with it.
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.
As shown in Figure 1, post-drying system on traditional fourdrinier wire wire multi-cylinder paper machine, only has post-drying section 6, post-drying section 6 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, the drying cylinder 11 of post-drying section 6 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 disposes one or two baking blanket cylinders, then need not dispose for dried net.End at rear drying device arranges 1-2 cooling cylinder usually, and it is wet that paper web is returned, and has plasticity, to improve the calendaring effect.In addition, post-drying section also comprises steam-supplying system, ventilation unit, lubricating system, paper guiding device and frame and transmission device etc.; Taking four 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.
Above-mentioned post-drying system is making in the process that high filler (as: calcium silicates) paper pulp is produced, and there are the following problems:
1, the own drying and dehydrating difficulty of high filler paper pulp, high loaded sheet resin added is larger, and total drying cylinder quantity of traditional post-drying system realm is few, drying area length is short etc., so that the l Water Paper page or leaf is short in this zone time of staying, bake out temperature is low, and paper drying and dehydrating degree is not enough, is unfavorable for press polish.
2, because high filler (as: calcium silicate filling material) mostly is loose gap structure, moisture is difficult for by directly volatilization of heating, therefore the direct heating, drying structure of back segment of the complete double drying cylinder of traditional post-drying system, cause high filler paper and glue application layer dewatering speed thereof slow, the paper expansion and contraction is larger, the drying effect of page and glue application layer is poor, is unfavorable for the subsequent treatment such as press polish, and whole paper machine system can not steady in a long-term move.
How solving traditional post-drying system problem, 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 post-drying system on the multi-cylinder long mesh paper machine, it can manufacture standard compliant paper with high filler paper pulp, has that drying time is long, drying efficiency good, paper drying and dehydrating foot, is beneficial to the characteristics that press polish, finished paper quality are high, can ensure the operation steady in a long-term of whole paper machine system.
The purpose of this utility model is achieved in that a kind of for the post-drying system on the multi-cylinder long mesh paper machine, and the total quantity of the drying cylinder of the traditional post-drying section of the more equal fabric width of total quantity of the drying cylinder of the post-drying section of post-drying system and the speed of a motor vehicle increases 20%-50%;
The drying cylinder leading portion of post-drying section is single hanging hang structure, and every drying cylinder of the single extension of leading portion cooperates a watt of gram cylinder, and rear row is the double hanging hang structure of two-layer drying cylinder up and down;
The back segment drying cylinder is taked four one group; Or five one group;
There is the enhancing drying unit in import department in post-drying section, and strengthening drying unit can be far-infrared baking oven, steam chest etc.
The utility model has the advantages that: because post-drying described in the utility model system is in the import department of post-drying section, increased enhancing drying unit (as: IR bake, steam chest etc.), so that high filler paper post-drying zone before the press polish after going out sizing applicator dehydrates fully, the paper expansion and contraction is little, one goes out namely to be carried out behind the sizing applicator and forces oven dry, guaranteed the fast pre-intensification of sizing material of paper surface, accelerate dehydration, so that paper has certain temperature when entering post-drying section, improved the applying glue quality and guaranteed that the mass dryness fraction of finished product paper reaches corresponding requirements; Solved conventional paper machines post-drying system dehydration difficulty, the paper mass dryness fraction is not up to standard, thereby affects the defective of the subsequent treatment such as applying glue.
Because post-drying described in the utility model section leading portion adopts single extension, back segment adopts double extension, the drying cylinder of the double extension of back segment is taked four to five one group, this structural reinforcing the transmission control of post-drying section, reduced high filler paper in the possibility of this drying area fracture, simultaneously also accelerate the rate of water loss after the paper after the applying glue enters post-drying section, reached 95% requirement so that paper goes out the mass dryness fraction of oven dry section.Having solved conventional paper machines can not fully dry and the easy problem that breaks end the high filler paper of high degree of sizing.
Because the above-mentioned improvement of post-drying described in the utility model system, when having solved high filler paper and producing in traditional post-drying system, the drying and dewatering of appearance is not enough, the too high problem such as easily broken paper that affects in product quality, the production process of moisture content when paper enters coil paper section.
Because post-drying system optimization described in the utility model is structural design cleverly, compare with the post-drying system of conventional paper machines, 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 post-drying system and 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 post-drying system architecture 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 traditional post-drying system architecture schematic diagram;
Fig. 2 post-drying system architecture described in the utility model schematic diagram;
Fig. 3 is that the post-drying system is installed in the use view on traditional paper machine;
Fig. 4 is that post-drying described in the utility model system 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 post-drying system architecture 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
As shown in Figure 4, described in the utility model a kind of for the post-drying system on the multi-cylinder long mesh paper machine, it has the drying unit 10 of enhancing and post-drying section 6; Strengthen drying unit 10 in the porch of post-drying section 6;
Strengthening drying unit 10 can be that far-infrared baking oven, steam chest etc. are strengthened drying plant; Strengthen drying unit 10 and can after going out sizing applicator 5, force oven dry to paper, guarantee fast pre-intensification and the acceleration dehydration of sizing material of paper surface, certain temperature is arranged when making paper enter post-drying section 6, therefore can improve the applying glue quality and guarantee that the mass dryness fraction of finished product paper reaches corresponding requirements.
Post-drying system shown in the comparison diagram 3,4, the conventional paper machines post-drying system realm of the relatively equal fabric width of post-drying system described in the utility model and the speed of a motor vehicle increases;
The total quantity of the conventional paper machines post-drying section drying cylinder 11 of the more equal fabric width of total quantity of the drying cylinder 11 of post-drying section 6 and the speed of a motor vehicle increases 20%-50%;
As shown in Figure 2, drying cylinder 11 leading portions in the post-drying section 6 are single hanging hang structures, every drying cylinder 11 of the single extension of leading portion cooperates a watt of gram cylinder 12, strengthen dehydration, 3 to 6 drying cylinder rows of leading portion are one group (4 drying cylinders of the leading portion that shows among the figure are one group), according to different paper product requirements, can select 1 to 5 group to consist of leading portion, as select 1 group, 2 groups, 3 groups, 4 groups, 5 groups to consist of leading portion; Back segment is the double hanging hang structure of two-layer drying cylinder 11 up and down, the same with the double hanging hang structure of drying cylinder of the post-drying section of conventional paper machines, 4 to 5 drying cylinder rows of back segment are one group (4 drying cylinders of the back segment that shows among the figure are one group), equally, according to different paper product requirements, can select 3 to 8 groups to consist of back segment, as select 3 groups, 4 groups, 5 groups, 6 groups, 7 groups, 8 groups to consist of back segment;
Above-mentioned leading portion drying cylinder 11, a watt gram cylinder 12 all dispose dryer felt or dried net, and dryer felt (net) is leading paper web around drying cylinder 11, watt gram cylinder 12 operations, and paper web is pressed on drying cylinder 11, watt gram cylinder 12 surfaces, carry out contact drying; Back segment drying cylinder 11 adopts the Dual-layer spread pattern, and two-layer drying cylinder 11 all disposes dryer felt or dried net up and down, and 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; Connect by drying cylinder driving-chain 13, carry out the frequency variable synchronous transmission, 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;
The install and use state of post-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 baking cadre 4, enhancing drying unit 10, sizing applicator 5, post-drying system (strengthening drying unit 10, post-drying section 6), calender 7, coil paper section 8 orders are installed on the frame 9, consist of the paper machine.
Embodiment 2
A kind of it only has post-drying section 6 for the post-drying system on the multi-cylinder long mesh paper machine, and the structure of post-drying section 6 is identical with embodiment 1, does not strengthen drying unit 10;
Present embodiment 2 described post-drying system architectures are compared with traditional post-drying system, have also solved traditional front drying system and have 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 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 (18)
1. a post-drying system that is used on the multi-cylinder long mesh paper machine is characterized in that: the total quantity increase 20%-50% of the drying cylinder (11) of the more equal fabric width of total quantity of the drying cylinder (11) of the post-drying section (6) of post-drying system and the conventional paper machines post-drying section (6) of the speed of a motor vehicle.
2. as claimed in claim 1 a kind of for the post-drying system on the multi-cylinder long mesh paper machine, it is characterized in that: drying cylinder (11) leading portion of post-drying section (6) is single hanging hang structure, every drying cylinder (11) of the single extension of leading portion cooperates a watt of gram cylinder (12), and rear row is two-layer drying cylinder (11) way double-line structure up and down.
3. as claimed in claim 2 a kind of for the post-drying system on the multi-cylinder long mesh paper machine, it is characterized in that: post-drying section (6) leading portion drying cylinder (11) is divided into the 1-5 group.
4. as claimed in claim 3 a kind of for the post-drying system on the multi-cylinder long mesh paper machine, it is characterized in that: every group of post-drying section (6) leading portion drying cylinder (11) has 3-6 drying cylinder.
5. as claimed in claim 4 a kind of for the post-drying system on the multi-cylinder long mesh paper machine, it is characterized in that: it is one group that post-drying section (6) leading portion is 3.
6. as claimed in claim 4 a kind of for the post-drying system on the multi-cylinder long mesh paper machine, it is characterized in that: it is one group that post-drying section (6) leading portion is 4.
7. as claimed in claim 4 a kind of for the post-drying system on the multi-cylinder long mesh paper machine, it is characterized in that: it is one group that post-drying section (6) leading portion is 5.
8. as claimed in claim 4 a kind of for the post-drying system on the multi-cylinder long mesh paper machine, it is characterized in that: it is one group that post-drying section (6) leading portion is 6.
9. such as claim 2 or 3 or 4 or 5 or 6 or 7 or 8 described a kind of for the post-drying system on the multi-cylinder long mesh paper machine, it is characterized in that: post-drying section (6) back segment drying cylinder (11) is divided into the 3-8 group.
10. as claimed in claim 9 a kind of for the post-drying system on the multi-cylinder long mesh paper machine, it is characterized in that: every group of post-drying section (6) back segment drying cylinder (11) has 4-5 drying cylinder.
11. as claimed in claim 10 a kind of for the post-drying system on the multi-cylinder long mesh paper machine, it is characterized in that: every group of post-drying section (6) back segment drying cylinder (11) has 4 drying cylinders.
12. as claimed in claim 11 a kind of for the post-drying system on the multi-cylinder long mesh paper machine, it is characterized in that: every group of post-drying section (6) back segment drying cylinder (11) has 5 drying cylinders.
13. such as claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 or 10 or 11 or 12 described a kind of for the post-drying system on the multi-cylinder long mesh paper machine, it is characterized in that: there is enhancing drying unit (10) in the import department in post-drying section (6).
14. as claimed in claim 13 a kind of for the post-drying system on the multi-cylinder long mesh paper machine, it is characterized in that: strengthening drying unit (10) is far-infrared baking oven.
15. as claimed in claim 13 a kind of for the post-drying system on the multi-cylinder long mesh paper machine, it is characterized in that: strengthening drying unit (10) is steam chest.
16. as claimed in claim 9 a kind of for the post-drying system on the multi-cylinder long mesh paper machine, it is characterized in that: there is enhancing drying unit (10) in the import department in post-drying section (6).
17. as claimed in claim 16 a kind of for the post-drying system on the multi-cylinder long mesh paper machine, it is characterized in that: strengthening drying unit (10) is far-infrared baking oven.
18. as claimed in claim 16 a kind of for the post-drying system on the multi-cylinder long mesh paper machine, it is characterized in that: strengthening drying unit (10) is steam chest.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220459963 CN202830632U (en) | 2012-09-10 | 2012-09-10 | Post-drying system for multi-cylinder long mesh paper machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220459963 CN202830632U (en) | 2012-09-10 | 2012-09-10 | Post-drying system for multi-cylinder long mesh paper machine |
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| CN202830632U true CN202830632U (en) | 2013-03-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669089A (en) * | 2012-09-10 | 2014-03-26 | 国能纸业有限公司 | Rear drying system used for multi-cylinder long mesh paper machine |
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- 2012-09-10 CN CN 201220459963 patent/CN202830632U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669089A (en) * | 2012-09-10 | 2014-03-26 | 国能纸业有限公司 | Rear drying system used for multi-cylinder long mesh paper machine |
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Granted publication date: 20130327 Termination date: 20190910 |