CN202830628U - Mesh portion drying and vacuum dewatering system for multi-cylinder long mesh paper machine - Google Patents
Mesh portion drying and vacuum dewatering system for multi-cylinder long mesh paper machine Download PDFInfo
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- CN202830628U CN202830628U CN 201220459946 CN201220459946U CN202830628U CN 202830628 U CN202830628 U CN 202830628U CN 201220459946 CN201220459946 CN 201220459946 CN 201220459946 U CN201220459946 U CN 201220459946U CN 202830628 U CN202830628 U CN 202830628U
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- dry vacuum
- paper machine
- dewatering system
- wet end
- vacuum
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- 238000001035 drying Methods 0.000 title abstract 11
- 239000000945 filler Substances 0.000 abstract description 23
- 229920001131 Pulp (paper) Polymers 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 5
- 239000000835 fiber Substances 0.000 abstract description 4
- 230000001737 promoting effect Effects 0.000 abstract 1
- 230000018044 dehydration Effects 0.000 description 11
- 238000006297 dehydration reaction Methods 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 9
- 239000004744 fabric Substances 0.000 description 6
- 235000012241 calcium silicate Nutrition 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 229910052918 calcium silicate Inorganic materials 0.000 description 4
- 239000000378 calcium silicate Substances 0.000 description 4
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000008676 import Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007645 offset printing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000011122 softwood Substances 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
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Abstract
The utility model discloses a mesh portion drying and vacuum dewatering system for a multi-cylinder long mesh paper machine, and belongs to the field of papermaking equipment accessories. The mesh portion drying and vacuum dewatering system is formed by a drying vacuum box, and a dewatering plate is arranged on the drying vacuum box and contacts with a mesh table. The middle of the drying vacuum box is a drying vacuum box vacuum chamber. Compare with the region length of a mesh portion drying and vacuum dewatering system for a traditional multi-cylinder long mesh paper machine with the same width and speed, the region length of the mesh portion drying and vacuum dewatering system for the multi-cylinder long mesh paper machine is increased by 10%-50%. The mesh portion drying and vacuum dewatering system for the multi-cylinder long mesh paper machine has the advantages of being long in stay time of paper pulp, high in dewatering degree, capable of effectively promoting orderly arrangement of paper pulp fiber and fillers, and good in paper page forming effects, and solves the problems of a traditional mesh portion drying and vacuum dewatering system.
Description
Technical field
The utility model discloses a kind of for the wet end dry vacuum dewatering system on the multi-cylinder long mesh paper machine, belong to paper machine equipment accessory field, be suitable for being used on the paper machine of producing high filler paper, be particularly suitable for being used in on the paper machine of active calcium silicate as high filler papermaking.
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.
Long mesh paper making machine wet end dry vacuum dewatering system is an important system in the paper machine equipment, shown in Fig. 1,3, dewatering plate 3 is installed on the dry vacuum case 2 contacts with forming table 1, traditional web part of paper machine dry vacuum dewatering system is when producing high filler paper, and there are the following problems:
1, paper pulp is short in the wet end dry vacuum dehydration zone time of staying, and dehydration is not enough, and simultaneously, wet web is shaped relatively poor;
2, the dewatering plate of traditional wet end dry vacuum dewatering system is fit to slowly dehydration and the shaping of common paper pulp, the dewatering plate total number is few, when using high filler paper pulp, the arrangement in whole dewatering plate zone and dewatering plate gap hinders the dehydration of paper pulp, cause high filler paper pulp dewatering speed slow, do not have the effect of effective promotion paper pulp fiber and filler ordered arrangement, the paper sheet formation weak effect.
How resolving the problems referred to above, is one of people's important step of successfully developing high loaded sheet machine equipment.
Summary of the invention
The purpose of this utility model provides a kind of for the wet end dry vacuum dewatering system on the multi-cylinder long mesh paper machine, and it has, and the paper pulp time of staying is long, degree of dehydration is high, can effectively promote paper pulp fiber and filler ordered arrangement, the effective characteristics of paper sheet formation.
The purpose of this utility model is achieved in that a kind of for the wet end dry vacuum dewatering system on the multi-cylinder long mesh paper machine, wet end dry vacuum dewatering system is made of the dry vacuum case, dewatering plate is installed on the dry vacuum case to be contacted with forming table, the middle part is dry vacuum case vacuum chamber, and traditional multi-cylinder long mesh paper machine wet end dry vacuum dewatering system zone length of the relatively equal fabric width of wet end dry vacuum dewatering system zone length and the speed of a motor vehicle increases 40%-100%;
The quantity of traditional fourdrinier wire wire multi-cylinder paper machine dry vacuum case of the relatively equal fabric width of the quantity of dry vacuum case and the speed of a motor vehicle increases 50%-100%;
The quantity of dry vacuum case is the 2-4 cover;
Installation interval between the dry vacuum case is 200mm-300mm;
The plate of dry vacuum case is wide to be 600mm-900mm;
15-30 bar dewatering plate is installed above the dry vacuum case;
The width of dewatering plate lath is 10mm-30mm;
It is two vacuum chambers that the dry vacuum case of wet end dry vacuum dewatering system has one to two cover, and other all are three vacuum chambers.
The utility model has the advantages that: because described in the utility model a kind of for the lengthening of the zone of the wet end dry vacuum dewatering system on the multi-cylinder long mesh paper machine, the dry vacuum box number increases, having selected two vacuum chambers of one to two cover and other all is the preferred structure of three vacuum chambers, the dewatering plate total quantity of dry vacuum dewatering system increases, the in addition preferred arrangement of structure, so that system described in the utility model is more suitable in shaping and the high vacuum dehydration of high filler paper pulp at wet end, the effect of wet end high vacuum dehydration strengthens, l Water Paper page or leaf forming effect has obtained to improve, and is fit to the dry vacuum dehydration to high filler (as: active calcium silicate) paper pulp.
The change of said structure, so that wet end dry vacuum dewatering system described in the utility model has significantly increased water separation capability on the basis that does not affect high filler paper paper sheet formation, simultaneously dry vacuum dewatering system Quick uniform dehydration under higher vacuum, microturbulence and the pulse of paper sheet formation can't exert an influence, kept arranging the l Water Paper page or leaf of shaping, simultaneously the strong vacuum fast dewatering that produces has been strengthened the combination between the fibrage time, consolidates and promoted the shaping of page.Solved high filler paper in conventional paper machines dry vacuum zone dehydration difficulty, power consumption is too high and the problem of forming net serious wear;
Because the improvement of wet end dry vacuum dewatering system structure described in the utility model, greatly improved the performance that multi-cylinder long mesh paper machine is produced high filler (as: calcium silicates) paper pulp, part has solved conventional paper machines dry vacuum dewatering system and has been not suitable for problem to high filler pulp production, improved high filler paper retention in process of production, reduce the filler loss, reduced cost;
Because the change of wet end dry vacuum dewatering system structure described in the utility model, compare with traditional wet end dry vacuum dewatering system, namely can be used on the production equipment of traditional culture paper using, can be used on again on the production equipment of high filler paper using, be particularly suitable for being used on the production equipment that adds all types of paper of having filled out the high filler of active calcium silicate, high filler Cultural Paper is that plant paper pulp fiber raw material take 40%-60% is as skeleton, take the active calcium silicate of 60%-40% as papermaking filler, fertile paper mold mainly includes but not limited to following paper kind: electro-photographic paper, offset printing paper, light paper, the cultural papers such as newsprint, the quantitative scope of producing paper is 30-120g/m
2Solve traditional wet end dry vacuum dewatering system and be unsuitable for problem for high filler pulp production;
Because the change of wet end dry vacuum dewatering system structure described in the utility model, compare with traditional wet end dry vacuum dewatering system, system includes but not limited to softwood pulp, hardwood pulp, reed pulp, Straw Pulp, bamboo pulp, reclaiming paper pulp etc. applicable to the various fibrous raw materials of web dryness in the 2-4% scope.
Description of drawings
Fig. 1 is the wet end dry vacuum dewatering system structural representation on traditional multi-cylinder long mesh paper machine;
Fig. 2 is a kind of structural representation of wet end dry vacuum case system described in the utility model (cover two vacuum chamber vacuum tanks and a cover three vacuum chamber vacuum tanks);
Fig. 3 is that the another kind of structure of the wet end dry vacuum dewatering system on traditional multi-cylinder long mesh paper machine (two cover vacuum tanks all are three vacuum chambers) is used view;
Fig. 4 is that the another kind of structure of wet end dry vacuum dewatering system described in the utility model (two cover three vacuum chamber dry vacuum casees and a cover two vacuum chamber vacuum tanks) is used view one;
Fig. 5 is that the another kind of structure of wet end dry vacuum dewatering system described in the utility model (two cover three vacuum chamber dry vacuum casees and a cover two vacuum chamber vacuum tanks) is used view two;
Among the figure: wet end 1, dry vacuum case 2, dewatering plate 3, two vacuum chambers 4, three vacuum chambers 5;
A kind ofly be described in further details for the wet end dry vacuum dewatering 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
A kind of for the wet end dry vacuum dewatering system on the multi-cylinder long mesh paper machine, traditional fourdrinier wire wire multi-cylinder paper machine dry vacuum dewatering system region growing 40%-100% of the relatively equal fabric width in wet end dry vacuum dewatering system zone and the speed of a motor vehicle;
So, the quantity of traditional fourdrinier wire wire multi-cylinder paper machine dry vacuum case 2 of the relatively equal fabric width of the quantity of the dry vacuum case 2 in the wet end dry vacuum dewatering system and the speed of a motor vehicle increases 50%-100%;
As shown in Figure 1, traditional wet end dry vacuum dewatering system has a dry vacuum case 2, and dry vacuum case 2 is three vacuum chambers 5, dewatering plate 3 is installed on the vacuum tank 2 contacts with forming table 1;
So, wet end dry vacuum dewatering system described in the utility model, as shown in Figure 2, the structure of wet end dry vacuum dewatering system is that two cover dry vacuum casees, 2, one cover dry vacuum casees are three vacuum chambers 5, another set of dry vacuum case is two vacuum chambers 4;
The increase of the relative conventional dry vacuum system of wet end dry vacuum dewatering system dry vacuum case 2 quantity described in the utility model dry vacuum box number is so that the total quantity of dewatering plate 3 increases on the dry vacuum dewatering system described in the utility model;
The plate of one cover dry vacuum case is wide to be 600mm-900mm, specifically can be: 600mm, 700mm, 800mm, 900mm;
Every cover dry vacuum upper box part can be installed 15-30 bar dewatering plate 3, specifically can be 15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30;
The width of every dewatering plate 3 can be 10mm-30mm, specifically can be: 10mm, 20mm, 30mm;
Installation interval between the dry vacuum case 2 can be 200mm-300mm, specifically can be: 200mm, 250mm, 300mm;
The vacuum source of doing (height) vacuum tank in the dry vacuum dewatering system described in the utility model is vavuum pump, regulates vavuum pump, makes it satisfy the forced dehydration requirement of high filler paper.
As shown in Figure 3, traditional wet end dry vacuum dewatering system has two cover dry vacuum casees 2, all is three vacuum chambers 5, dewatering plate 3 is installed on the dry vacuum case 2 contacts with forming table 1;
So, the described wet end dry vacuum of the utility model embodiment dewatering system, as shown in Figure 4 (or as shown in Figure 5), the structure of wet end dry vacuum dewatering system is three cover dry vacuum casees 2, two cover dry vacuum casees are three vacuum chambers 5, and another set of dry vacuum case is two vacuum chambers 4;
Other structures are identical with embodiment 1.
A kind of for the wet end dry vacuum dewatering system on the multi-cylinder long mesh paper machine, it is that two vacuum chambers, 4, one cover dry vacuum casees are three vacuum chambers 5 that wet end dry vacuum dewatering system has three cover dry vacuum casees, 2, two cover dry vacuum casees;
Other structures are identical with embodiment 1.
Wet end dry vacuum dewatering system described in the utility model can also be to be made of 2-4 cover dry vacuum case 2; Wherein, a cover or two cover dry vacuum casees are two vacuum chambers, and other dry vacuum case all is three vacuum chambers.
As: the quantity of traditional fourdrinier wire wire multi-cylinder paper machine dry vacuum case 2 is 1 cover, and the quantity of the utility model fourdrinier wire wire multi-cylinder paper machine dry vacuum case 2 of equal fabric width and the speed of a motor vehicle is 2 covers; The quantity of tradition fourdrinier wire wire multi-cylinder paper machine dry vacuum case 2 is 3 covers, and the quantity of the utility model fourdrinier wire wire multi-cylinder paper machine dry vacuum case 2 of equal fabric width and the speed of a motor vehicle is 4 covers;
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 (23)
1. wet end dry vacuum dewatering system that is used on the multi-cylinder long mesh paper machine, it is made of dry vacuum case (2), dewatering plate (3) is installed on the dry vacuum case (2) to be contacted with forming table (1), the middle part is dry vacuum case vacuum chamber, it is characterized in that: traditional multi-cylinder long mesh paper machine wet end dry vacuum dewatering system zone length of the relatively equal fabric width of wet end dry vacuum dewatering system zone length and the speed of a motor vehicle increases 40%-100%.
2. as claimed in claim 1 a kind of for the wet end dry vacuum dewatering system on the multi-cylinder long mesh paper machine, it is characterized in that: the quantity of traditional fourdrinier wire wire multi-cylinder paper machine dry vacuum case (2) of the relatively equal fabric width of the quantity of dry vacuum case (2) and the speed of a motor vehicle increases 50%--100%.
3. as claimed in claim 1 or 2 a kind of for the wet end dry vacuum dewatering system on the multi-cylinder long mesh paper machine, it is characterized in that: the quantity of dry vacuum case (2) is the 2-4 cover.
4. as claimed in claim 1 or 2 a kind of for the wet end dry vacuum dewatering system on the multi-cylinder long mesh paper machine, it is characterized in that: the installation interval between the dry vacuum case (2) is 200 millimeters-300 millimeters.
5. as claimed in claim 3 a kind of for the wet end dry vacuum dewatering system on the multi-cylinder long mesh paper machine, it is characterized in that: the installation interval between the dry vacuum case (2) is 200 millimeters-300 millimeters.
6. such as claim 1 or 2 or 5 described a kind of for the wet end dry vacuum dewatering system on the multi-cylinder long mesh paper machine, it is characterized in that: the plate of dry vacuum case is wide to be 600 millimeters-900 millimeters.
7. as claimed in claim 3 a kind of for the wet end dry vacuum dewatering system on the multi-cylinder long mesh paper machine, it is characterized in that: the plate of dry vacuum case is wide to be 600 millimeters-900 millimeters.
8. as claimed in claim 4 a kind of for the wet end dry vacuum dewatering system on the multi-cylinder long mesh paper machine, it is characterized in that: the plate of dry vacuum case is wide to be 600 millimeters-900 millimeters.
9. such as claim 1 or 2 or 5 or 7 or 8 described a kind of for the wet end dry vacuum dewatering system on the multi-cylinder long mesh paper machine, it is characterized in that: 15-30 bar dewatering plate (3) is installed above the dry vacuum case (2).
10. as claimed in claim 3 a kind of for the wet end dry vacuum dewatering system on the multi-cylinder long mesh paper machine, it is characterized in that: 15-30 bar dewatering plate (3) is installed above the dry vacuum case (2).
11. as claimed in claim 4 a kind of for the wet end dry vacuum dewatering system on the multi-cylinder long mesh paper machine, it is characterized in that: 15-30 bar dewatering plate (3) is installed above the dry vacuum case (2).
12. as claimed in claim 6 a kind of for the wet end dry vacuum dewatering system on the multi-cylinder long mesh paper machine, it is characterized in that: 15-30 bar dewatering plate (3) is installed above the dry vacuum case (2).
13. such as claim 1 or 2 or 5 or 7 or 8 or 10 or 11 or 12 described a kind of for the wet end dry vacuum dewatering system on the multi-cylinder long mesh paper machine, it is characterized in that: the width of dewatering plate (3) lath is 10 millimeters-30 millimeters.
14. as claimed in claim 3 a kind of for the wet end dry vacuum dewatering system on the multi-cylinder long mesh paper machine, it is characterized in that: the width of dewatering plate (3) lath is 10 millimeters-30 millimeters.
15. as claimed in claim 4 a kind of for the wet end dry vacuum dewatering system on the multi-cylinder long mesh paper machine, it is characterized in that: the width of dewatering plate (3) lath is 10 millimeters-30 millimeters.
16. as claimed in claim 6 a kind of for the wet end dry vacuum dewatering system on the multi-cylinder long mesh paper machine, it is characterized in that: the width of dewatering plate (3) lath is 10 millimeters-30 millimeters.
17. as claimed in claim 9 a kind of for the wet end dry vacuum dewatering system on the multi-cylinder long mesh paper machine, it is characterized in that: the width of dewatering plate (3) lath is 10 millimeters-30 millimeters.
18. such as claim 1 or 2 or 5 or 7 or 8 or 10 or 11 or 12 or 14 or 15 or 16 or 17 described a kind of for the wet end dry vacuum dewatering system on the multi-cylinder long mesh paper machine, it is characterized in that: it is two vacuum chambers (4) that dry vacuum case (2) has one to two cover, and other dry vacuum casees are three vacuum chambers (5).
19. as claimed in claim 3 a kind of for the wet end dry vacuum dewatering system on the multi-cylinder long mesh paper machine, it is characterized in that: it is two vacuum chambers (4) that dry vacuum case (2) has one to two cover, and other dry vacuum casees are three vacuum chambers (5).
20. as claimed in claim 4 a kind of for the wet end dry vacuum dewatering system on the multi-cylinder long mesh paper machine, it is characterized in that: it is two vacuum chambers (4) that dry vacuum case (2) has one to two cover, and other dry vacuum casees are three vacuum chambers (5).
21. as claimed in claim 6 a kind of for the wet end dry vacuum dewatering system on the multi-cylinder long mesh paper machine, it is characterized in that: it is two vacuum chambers (4) that dry vacuum case (2) has one to two cover, and other dry vacuum casees are three vacuum chambers (5).
22. as claimed in claim 9 a kind of for the wet end dry vacuum dewatering system on the multi-cylinder long mesh paper machine, it is characterized in that: it is two vacuum chambers (4) that dry vacuum case (2) has one to two cover, and other are three vacuum chambers (5).
23. as claimed in claim 13 a kind of for the wet end dry vacuum dewatering system on the multi-cylinder long mesh paper machine, it is characterized in that: it is two vacuum chambers (4) that dry vacuum case (2) has one to two cover, and other are three vacuum chambers (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220459946 CN202830628U (en) | 2012-09-10 | 2012-09-10 | Mesh portion drying and vacuum dewatering system for multi-cylinder long mesh paper machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220459946 CN202830628U (en) | 2012-09-10 | 2012-09-10 | Mesh portion drying and vacuum dewatering system for multi-cylinder long mesh paper machine |
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| Publication Number | Publication Date |
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| CN202830628U true CN202830628U (en) | 2013-03-27 |
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| CN 201220459946 Expired - Fee Related CN202830628U (en) | 2012-09-10 | 2012-09-10 | Mesh portion drying and vacuum dewatering system for multi-cylinder long mesh paper machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669084A (en) * | 2012-09-10 | 2014-03-26 | 国能纸业有限公司 | Mesh portion dry vacuum dehydration system used for multi-cylinder long mesh paper machine |
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- 2012-09-10 CN CN 201220459946 patent/CN202830628U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669084A (en) * | 2012-09-10 | 2014-03-26 | 国能纸业有限公司 | Mesh portion dry vacuum dehydration system used for multi-cylinder long mesh paper machine |
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