CN105442376A - Crescent-shaped dehydrating screen for paper making machine - Google Patents
Crescent-shaped dehydrating screen for paper making machine Download PDFInfo
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- CN105442376A CN105442376A CN201510799652.0A CN201510799652A CN105442376A CN 105442376 A CN105442376 A CN 105442376A CN 201510799652 A CN201510799652 A CN 201510799652A CN 105442376 A CN105442376 A CN 105442376A
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- dewatering net
- paper
- crescent
- paper machine
- dewatering
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/10—Wire-cloths
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Abstract
The invention discloses a crescent-shaped dehydrating screen for a paper making machine. According to the dehydrating screen, 16 warp yarns and 24 weft yarns are adopted to be woven circularly, the 16 warp yarns and 16 weft yarns are interwoven to form an upper layer of the dehydrating screen to form the front of the dehydrating screen, and weft face satin weave is adopted as the front of the dehydrating screen; the 16 wrap yarns and 8 weft yarns are interwoven to form a lower layer of the dehydrating screen to form the reverse side of the dehydrating screen, and warp face satin weave is adopted as the reverse side of the dehydrating screen. The crescent-shaped dehydrating screen for the paper making machine has the advantages of being high and uniform in dehydrating speed and low in energy consumption, and produced paper for life is clear in slant grain, super soft, large in bulkness, high in water absorbing property and high in strength; when the product with the same thickness and the same area is produced, 20% of wood pulp cellulose is reduced compared with common paper for life, and a great number of wood fibers and forest resources are saved.
Description
Technical field
The present invention relates to paper grade (stock) dewatering net, relate to a kind of crescent paper machine dewatering net more specifically.
Background technology
Paper machine dewatering net is the essential valuable drainage facilities of papermaking enterprise, be applied in paper machine wet end, with certain speed round and round, paper pulp is evenly ejected on dewatering net by head box, the dewatering elements such as breast roll, forming board, Wiper blade, low vacuum suction box, high vacuum suction box, couch roll are run through by dewatering net, fiber is retained on dewatering net by the moisture removal in slurry and forms l Water Paper page, be sent to press section.The use of dewatering net must meet quality of finished paper and requirement in service life, therefore dewatering net must consider the factors such as the texture structure of dewatering net, fiber support index, air permeability, freeness, vertical lateral stability, deflection and service life on organizational structure design, makes it reach optimization.
Paper for daily use is daily necessities, as products such as tissue, toilet paper, tissues, closely bound up with personal healthcare especially, demand has great rigidity, once form use habit, affect the daily demand of people to paper for daily use even if economy downturn also can not be too much.In addition, paper for daily use also belongs to a member of fast-moving consumer goods, all belongs to expendable consumed product, and replacement frequency is high and often have periodically, constantly can produce new demand.The production and consumption level of paper for daily use weighs an important symbol of modernization of the country level and civilization degree.China in Recent Years paper for daily use industry along with economic development, population increase and people's living standard raising and increase fast.
At present, the paper for daily use consumption figure of China is only second to North America and area, West Europe, occupies third place in the world.The life in China paper using market demand is vigorous, continues to keep quick growth, is the bright spot of investment that paper for daily use enterprise and other paper kind papermaking enterprises increase production capacity newly.Along with the quickening of China's expanding economy and urbanization, internationalization process, the market demand potential will constantly discharge, for this Chaoyang industry of paper for daily use brings huge development space.
Crescent paper machine is that Kimberly company of the U.S. invented in late 1960s, and the present invention makes the quality of paper for daily use and paper motor speed reach good combination.Utilize through the practices of more than 40 years, crescent paper machine is the leading type of high-speed toilet paper making machine in the whole world, is also considered to best type.It has the following advantages:
1. the speed of a motor vehicle is high, and production capacity is large.The usual speed of a motor vehicle is 1000 ~ 2200 ms/min, production capacity 50 ~ 220 ton per day;
2. dehydration fast, evenly;
3. fiber retention is high, becomes paper quality better;
4. the life-span of net, blanket is long;
5., compared with other toilet paper machine, structure is simple, and easy to operate, the operating personnel of needs are few.
The most outstanding advantages of crescent paper machine is that the speed of a motor vehicle is high, production capacity large, becomes paper quality better.From the quality index such as pliability, bulk of product, crescent paper machine, the particularly type of double-layer headbox structure, have superiority than BF type paper facility, is more suitable for producing high-grade paper for daily use.Crescent paper machine performance advantage is given prominence to, and in recent years, China increases newly in paper for daily use production capacity, based on crescent paper machine, about about 50, still has newly-built and building crescent paper machine project in a large number.
Crescent paper machine dewatering net is the rapid wear easily-consumed products of crescent paper machine indispensability, needs periodic replacement, within most cases 3 months, changes a net.
Existing dewatering net is mainly used in productive life paper using on fourdrinier machine and oblique net paper machine, paper machine speed is low, scarcely more than 800 ms/min, although dehydration and shaping needs can be met, but the paper for daily use surface produced does not have lines, tightness is large, and pliability is poor, fine tissue need of production can not be met, particularly crescent paper machine need of production.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, the user demand of the paper machine that can meet the high speed of a motor vehicle is provided, dewatering speed is fast, even, energy consumption is low, the crescent paper machine dewatering net that the oblique lines of paper for daily use of production is clear, pliability good, bulk is high, water imbibition is strong, intensity is good.
To achieve these goals, the technical solution used in the present invention is:
This kind crescent paper machine dewatering net, adopt 16 warps and 24 parallel circulation braidings, wherein 16 warps and 16 parallels intertextures form dewatering net front, and dewatering net front is satin tissue; 16 warps and 8 parallels interweave and form dewatering net reverse side, and dewatering net reverse side is Warp Satin tissue.
Dewatering net front forms oblique lines, after slurry is ejected into dewatering net by head box, moisture in dewatering net fast eliminating slurry, fiber to be retained on dewatering net and to form l Water Paper page, l Water Paper page and dewatering net front face, duplicate the oblique lines in dewatering net front, page is formed oblique lines clearly.
Described end diameter is 0.15mm, and material is monofilament polyester.
16 weft wire diameters in dewatering net front are 0.13mm, and material is monofilament polyester; 8 weft wire diameters of dewatering net reverse side are 0.22mm, and in 8 parallels, 4 is monofilament polyester, and other 4 is nylon monofilament, and monofilament polyester and nylon monofilament alternately braiding in 8 parallels.
Described warp density is 72.0 ± 1.0/cm; Described weft density is 55.0 ± 1.0/cm or 50.0 ± 1.0/cm.
Paper pliability≤45mN that described dewatering net manufactures, bulk 11.6cm
3/ g, tension stress index>=4.8Nm/g.
Described dewatering net is the paper machine of 1000 ~ 2200 ms/min for the speed of a motor vehicle, the speed of a motor vehicle is on the paper machine of 1000 ~ 1600 ms/min, selection weft density is the dewatering net of 55.0 ± 1.0/cm, the speed of a motor vehicle is on the paper machine of 1600 ~ 2200 ms/min, and selection weft density is the dewatering net of 50.0 ± 1.0/cm.
The invention has the advantages that: this kind crescent paper machine dewatering net to have that dewatering speed is fast, evenly, energy consumption is low, the oblique lines of paper for daily use of production be clear, super soft, the feature such as bulk is high, water imbibition is strong, intensity is good.Production same thickness and product of the same area apply flexibly the paper low wood pulp fibre of 20% than ordinary student, save lumber fibre and the forest reserves in a large number.
Through experimental verification, when other conditions are all identical, with the test of 13gsm paper for daily use body paper, compared with the paper for daily use produced with the dewatering net of prior art manufacture, utilize the paper that this crescent paper machine dewatering net manufactures: pliability≤45mN, bulk 11.6cm
3/ g, tensile index (average in length and breadth)>=4.8Nm/g, on paper, oblique lines is clear.The dewatering net that prior art manufactures: pliability≤67mN, bulk 9.6cm
3/ g, tensile index (average in length and breadth)>=4.2Nm/g, paper does not have oblique lines.The paper for daily use paper quality of this crescent paper machine dewatering net manufacture is utilized to improve successful.
Accompanying drawing explanation
Mark in the content expressed each width accompanying drawing of description of the present invention below and figure is briefly described:
Fig. 1 is the structural representation on the dewatering net upper strata of the crescent paper machine dewatering net of the present invention.
Fig. 2 is the structural representation of the dewatering net lower floor of the crescent paper machine dewatering net of the present invention.
Fig. 3 is the schematic cross-section of the dewatering net of the crescent paper machine dewatering net of the present invention.
Detailed description of the invention
Contrast accompanying drawing below, by the description to optimum embodiment, the specific embodiment of the present invention is described in further detail.
As shown in Figure 1, Figure 2 and Figure 3: 1 ~ 16 is 16 warps, 21 ~ 36 is 16, upper strata parallel, and 41 ~ 48 is lower floor's 8 parallels.
As shown in Figure 1: 1 ~ 16 totally 16 warps and 21 ~ 36 totally 16 parallels interweave and form dewatering net upper strata, form dewatering net front, dewatering net front forms oblique lines and satin tissue, and protrude front parallel and support fiber fines, fiber retention is high, paper basis weight is low, evenness is good.
As shown in Figure 2: 1 ~ 16 totally 16 warps and 41 ~ 48 totally 8 parallels interweave and form dewatering net lower floor, form dewatering net reverse side, dewatering net reverse side forms Warp Satin tissue, and protrusion reverse side parallel weares and teares by it, long service life.
As shown in Figure 3: 1 ~ 16 totally 16 warps and 21 ~ 36 and 41 ~ 48 totally 24 parallels interweave, the upper and lower are woven together, form multi-layer braided technology.
This kind crescent paper machine dewatering net, institutional framework adopts multi-layer braided technology, and adopt 16 warps and 24 parallel circulation braidings, wherein 16 warps and 16 parallels intertextures form dewatering net front, and dewatering net front is satin tissue; 16 warps and 8 parallels interweave and form dewatering net reverse side, and dewatering net reverse side is Warp Satin tissue.
Dewatering net front forms oblique lines, after slurry is ejected into dewatering net by head box, moisture in dewatering net fast eliminating slurry, fiber to be retained on dewatering net and to form l Water Paper page, l Water Paper page and dewatering net front face, duplicate the oblique lines in dewatering net front, page formed oblique lines clearly, this oblique lines and crescent paper machine require to produce paper to be had oblique lines clearly and matches, and improves the quality of producing paper.
16 warps and 16 parallels interweave and form dewatering net upper strata, and form dewatering net front, dewatering net front forms oblique lines and satin tissue, and protrude front parallel and support fiber fines, fiber retention is high, paper basis weight is low, evenness is good; 16 warps and 8 parallels interweave and form dewatering net lower floor, and form dewatering net reverse side, dewatering net reverse side forms Warp Satin tissue, protrude reverse side parallel and wear and tear by it, long service life.
Preferred end diameter is 0.15mm, and material is monofilament polyester; Adopt suitable diameter, reliable and stable dewatering net institutional framework can be formed, while improving service life, improve shaping paper quality.
16 weft wire diameters being positioned at dewatering net front are 0.13mm, and material is monofilament polyester; Being positioned at 8 weft wire diameters of reverse side under dewatering net is 0.22mm, and in 8 parallels, 4 is monofilament polyester and 4 is nylon monofilament, and monofilament polyester and nylon monofilament alternately braiding in 8 parallels.16, dewatering net front parallel is different with the diameter of dewatering net reverse side 8 parallels, and 16, front parallel meets the demand supporting fiber fines further, and reverse side 8 parallels meet wear-resisting demand, to improve service life further; A monofilament polyester and a nylon monofilament alternately braiding in reverse side 8 parallels simultaneously, nylon monofilament ABRASION RESISTANCE is better than monofilament polyester more, adds nylon monofilament and increases forming net ABRASION RESISTANCE, improve service life further.
Preferably, warp density is 72.0 ± 1.0/cm; Weft density is 55.0 ± 1.0/cm or 50.0 ± 1.0/cm; Filling density density is less, and the air permeability of dewatering net is larger, and drainage rate is faster, and the water yield removed in the identical time is more, further can improve the quality of forming paper.
It is on the paper machine of 1000 ~ 2200 ms/min that crescent paper machine dewatering net is useful in the usual speed of a motor vehicle, the minimax speed of a motor vehicle differs one times, the speed of a motor vehicle is different, require different to the dewatering speed of dewatering net, 1000 ~ 1600 ms/min under normal circumstances, selection weft density is the dewatering net of 55.0 ± 1.0/cm, 1600 ~ 2200 ms/min, and selection weft density is the dewatering net of 50.0 ± 1.0/cm.Weft density is two kinds, to meet different speed of a motor vehicle demands, further can ensure the quality of forming paper.
Through experimental verification, when other conditions are all identical, with the test of 13gsm paper for daily use body paper, compared with the paper for daily use produced with the dewatering net of prior art manufacture, utilize the paper that this crescent paper machine dewatering net manufactures: pliability≤45mN, bulk 11.6cm
3/ g, tensile index (average in length and breadth)>=4.8Nm/g, on paper, oblique lines is clear.The dewatering net that prior art manufactures: pliability≤67mN, bulk 9.6cm
3/ g, tensile index (average in length and breadth)>=4.2Nm/g, paper does not have oblique lines.The paper for daily use paper quality of this crescent paper machine dewatering net manufacture is utilized to improve successful.
This kind crescent paper machine dewatering net has that dewatering speed is fast, evenly, energy consumption is low, and the oblique lines of paper for daily use of production is clear, super soft, the advantage such as bulk is high, water imbibition is strong, intensity is good.Production same thickness and product of the same area apply flexibly the paper low wood pulp fibre of 20% than ordinary student, save lumber fibre and the forest reserves in a large number.
Obvious specific implementation of the present invention is not subject to the restrictions described above, as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out, all within protection scope of the present invention.
Claims (7)
1. a crescent paper machine dewatering net, is characterized in that: adopt 16 warps and 24 parallel circulation braidings, wherein 16 warps and 16 parallels intertextures form dewatering net front, and dewatering net front is satin tissue; 16 warps and 8 parallels interweave and form dewatering net reverse side, and dewatering net reverse side is Warp Satin tissue.
2. crescent paper machine dewatering net as claimed in claim 1, it is characterized in that: dewatering net front forms oblique lines, after slurry is ejected into dewatering net by head box, moisture in dewatering net fast eliminating slurry, fiber to be retained on dewatering net and to form l Water Paper page, l Water Paper page and dewatering net front face, duplicate the oblique lines in dewatering net front, page formed oblique lines clearly.
3. crescent paper machine dewatering net as claimed in claim 1, it is characterized in that: described end diameter is 0.15mm, material is monofilament polyester.
4. the crescent paper machine dewatering net as described in any one of claim 1-3, is characterized in that: 16 weft wire diameters in dewatering net front are 0.13mm, and material is monofilament polyester; 8 weft wire diameters of dewatering net reverse side are 0.22mm, and in 8 parallels, 4 is monofilament polyester, and other 4 is nylon monofilament, and monofilament polyester and nylon monofilament alternately braiding in 8 parallels.
5. crescent paper machine dewatering net as claimed in claim 4, is characterized in that: described warp density is 72.0 ± 1.0/cm; Described weft density is 55.0 ± 1.0/cm or 50.0 ± 1.0/cm.
6. crescent paper machine dewatering net as claimed in claim 5, is characterized in that: paper pliability≤45mN that described dewatering net manufactures, bulk 11.6cm
3/ g, tension stress index>=4.8Nm/g.
7. crescent paper machine dewatering net as claimed in claim 6, it is characterized in that: described dewatering net is the paper machine of 1000 ~ 2200 ms/min for the speed of a motor vehicle, the speed of a motor vehicle is on the paper machine of 1000 ~ 1600 ms/min, selection weft density is the dewatering net of 55.0 ± 1.0/cm, the speed of a motor vehicle is on the paper machine of 1600 ~ 2200 ms/min, and selection weft density is the dewatering net of 50.0 ± 1.0/cm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510799652.0A CN105442376B (en) | 2015-11-18 | 2015-11-18 | A kind of crescent paper machine dewatering net |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510799652.0A CN105442376B (en) | 2015-11-18 | 2015-11-18 | A kind of crescent paper machine dewatering net |
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| CN105442376A true CN105442376A (en) | 2016-03-30 |
| CN105442376B CN105442376B (en) | 2017-09-12 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI88529B (en) * | 1986-08-04 | 1993-02-15 | Hutter & Schrantz Ag | TVAOSKIKTSVIRA FOER PAPPERSMASKIN |
| CN201314007Y (en) * | 2008-12-15 | 2009-09-23 | 董华伟 | Novel durable forming fabric for papermaking |
| CN201314006Y (en) * | 2008-12-15 | 2009-09-23 | 董华伟 | Forming fabric with high-retention rate for paper making |
| CN201395739Y (en) * | 2009-05-08 | 2010-02-03 | 河南省华丰网业有限公司 | Two and a half layer forming fabric with high retention rate used for light weight papermaking |
| CN201520923U (en) * | 2009-07-31 | 2010-07-07 | 安徽华宇网业有限公司 | Double-layer paper-making mesh |
| CN103469667A (en) * | 2013-08-08 | 2013-12-25 | 浙江科技学院 | Manufacturing method of high-stiffness two-and-a-half-layer papermaking forming net |
| CN205205568U (en) * | 2015-11-18 | 2016-05-04 | 安徽华辰造纸网股份有限公司 | Crescent type dehydration mesh for paper machine |
-
2015
- 2015-11-18 CN CN201510799652.0A patent/CN105442376B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI88529B (en) * | 1986-08-04 | 1993-02-15 | Hutter & Schrantz Ag | TVAOSKIKTSVIRA FOER PAPPERSMASKIN |
| CN201314007Y (en) * | 2008-12-15 | 2009-09-23 | 董华伟 | Novel durable forming fabric for papermaking |
| CN201314006Y (en) * | 2008-12-15 | 2009-09-23 | 董华伟 | Forming fabric with high-retention rate for paper making |
| CN201395739Y (en) * | 2009-05-08 | 2010-02-03 | 河南省华丰网业有限公司 | Two and a half layer forming fabric with high retention rate used for light weight papermaking |
| CN201520923U (en) * | 2009-07-31 | 2010-07-07 | 安徽华宇网业有限公司 | Double-layer paper-making mesh |
| CN103469667A (en) * | 2013-08-08 | 2013-12-25 | 浙江科技学院 | Manufacturing method of high-stiffness two-and-a-half-layer papermaking forming net |
| CN205205568U (en) * | 2015-11-18 | 2016-05-04 | 安徽华辰造纸网股份有限公司 | Crescent type dehydration mesh for paper machine |
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| CN105442376B (en) | 2017-09-12 |
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