CN100420791C - Method and equipment for making high-grade life paper by using bagasse as material - Google Patents
Method and equipment for making high-grade life paper by using bagasse as material Download PDFInfo
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- CN100420791C CN100420791C CNB021154015A CN02115401A CN100420791C CN 100420791 C CN100420791 C CN 100420791C CN B021154015 A CNB021154015 A CN B021154015A CN 02115401 A CN02115401 A CN 02115401A CN 100420791 C CN100420791 C CN 100420791C
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Abstract
The present invention relates to a method and equipment for making middle-grade and high-grade life paper from self-prepared bleaching bagasse pulp as principal raw materials compounded with a small amount of wood pulp. The method comprises: respectively crushing, disintegrating and jordaning wood pulp and bagasse pulp; then, delivering the wood pulp and the bagasse pulp to a double-layer pulp flow box on a high-speed paper machine to make the wood pulp attached to the jar wall of a forming roll on the high-speed paper machine and the bagasse pulp attached to the wood pulp; finally, fast drying by high efficiency hot air to obtain products. The paper machine adopts a double-layer pulp flow box structure, a single suction pressing roller, a Yank drying cylinder and a high efficiency hot air gas hood. Toilet paper made by the present invention has the advantages of good quality and fine hand feeling, the quality of the products approaches to that of toilet paper produced by full wood pulp, and moreover, in the process of production, the phenomena of stuck jars and broken ends scarcely occur.
Description
Technical field
The present invention relates to a kind of papermaking process and equipment, particularly be the method and apparatus of main material production high life with paper with bagasse.
Background technology
On the high speed paper machine, copy paper and all must use high cotton pulp or the wood pulp of fiber changqiang degree usually, mainly be because high speed paper machine speed is fast, if fibre strength is low, fiber is short, then causes sticking cylinder and phenomenon of rupture easily, so present straw pulp, bagasse pulp or some low-grade wood pulp, because the fiber cell wall is thin, fiber is short and small, pulling force is not strong, beating degree height during pulping, water filtering performance is poor, can't be applied to the high speed paper machine.Copying at present both at home and abroad high-grade paper mostly all uses hardwood pulp to be equipped with more softwood pulp to be raw material, even add straw pulp, at most also can be added to 15% that this high wood pulp proportioning produces toilet paper or paper for daily use has greatly been wasted the forest reserves, has increased cost.In order to address this problem, abroad also to attempt, or add bagasse pulp on the high-grade life paper at the high speed toilet paper, but all can not be higher than 20%, frequently take place otherwise produce abnormal, sticking cylinder phenomenon, and paper quality is relatively poor, does not reach the quality requirement of medium-to-high grade productive life with paper.And scientific and technical literature by retrieval, domestic at the report that is finding no the adding bagasse pulp aspect the high speed paper machine, great majority were wanted the senior wood pulp of dependence on import when high-grade toilet paper was copied at present by most domestic manufacturer, the technology that adds straw pulp is also immature, will cause sticking cylinder and phenomenon of rupture because of carelessness and causes the phenomenon that reduces product quality.
Reduction along with afforestation rate.The protection of natural, ecological and natural environment is more and more paid attention in countries in the world; thereby to the felling of forest more and more stricter restriction can appear; the output of bleached wood pulp also is downward trend year by year; pulp price is more and more expensive; therefore, the new paper pulp raw material of exploitation will be the technology emphasis of pulping and papermaking industry from now on to replace timber.
The southern Guangxi of China, Guangdong, Yunnan, provinces and regions such as Fujian are the sugarcane places of production, sugarcane is except that sugaring, bagasse but is taken as fuel in most of factories and burns, greatly wasted resource, the bagasse papermaking of many paper plants is also arranged, even but papermaking also can only be made the toilet paper and the writing paper of middle low gear, also need add a large amount of wood pulps sometimes as raw material.
Summary of the invention
The inventor after research and testing, existing technology and equipment are improved, having proposed a cover, to be equipped with a small amount of wood pulp (hardwood pulp is equipped with suitable softwood pulp) with a large amount of bagasse pulps be raw material, be ferreted out the technology and the equipment of high-quality toilet paper or paper for daily use product at novel high speed paper machine
The technical scheme of papermaking process of the present invention is to realize like this, with wood pulp and bagasse pulp difference pulping, discongest with defibrination after deliver to double-layer headbox on the high speed paper machine, wood pulp is attached on the casing wall of format roll on the high speed paper machine, and bagasse pulp be attached to wood pulp above, rapid draing through efficient hot blast obtains product again, stick to wherein that wood pulp accounts for 20-50% on the paper machine format roll cylinder face, the bagasse pulp that is attached to the wood pulp surface is 50-80%, specifically can determine the ratio of wood pulp and bagasse according to different requirements, but the wood pulp of common 20-30% can reach the intensity of common high-quality toilet paper.
Concrete technical process is that the bagasse pulpboard enters reserve pit behind water pulper pulping, enters machine chest through discongesting after grinding with disc mill, is transported to the bottom that enters double-layer headbox behind the pressurized screen with pump; The wood pulp pulpboard also at first enters reserve pit behind hydraulic pulping, also enter machine chest again after discongest, grinding, and is transported to double-layer headbox by pump then.
In the technical process of high-speed paper machine is the wood pulp of double-layer headbox and bagasse pulp at first enter format roll from format roll and vacuum pressure roller surface, forms one, again through raising the gram cylinder, and hot blast rapid draing, the product that obtains obtains product by the reel machine rolling.
Concrete production procedure is:
(1), bagasse pulp flow process:
Bagasse pulpboard--hydrabrusher--reserve pit--fluffer--disc mill--machine chest--bottom slurry fan pump--pressurized screen---bottom head box
(2), wood pulp flow process:
Wood-pulp board (eucalyptus or needlebush pulpboard)--hydrabrusher--reserve pit--fluffer--disc mill--machine chest--surface layer fan pump--pressurized screen---surface layer head box
(3), paper machine flow process:
Head box--the roller of embarking on journey--suction press roll--Yang Ke cylinder---reel machine
The equipment that paper machine method of the present invention adopts adopts the defeated slurry equipment of two covers, it comprises pulper, reserve pit, fluffer, disc mill, machine chest, stock pump and pressurized screen, head box changes original single-layer headboxes into two-layer head box, two pulp-inlet pipes are arranged above, be respectively wood pulp pipe and bagasse pulp pipe, the below of double-layer headbox is a format roll, and then connect the vacuum pressure roller, copy the paper cylinder and adopt the Yankee cylinder, Yankee cylinder top is provided with hot blast vapour cover (adapted single burner), to improve the thermal efficiency and to quicken the drying of paper pulp.
Calender in the machine is not set in the flow process, the production speed of a motor vehicle 1200～1300m/min, the bleaching bagasse pulp plate, Brazilian Aracruz board Eucalyptus pulpboard and the Sweden Skogcell board needlebush pulpboard that use raw material to produce for expensive sugared company, page crepe ratio 20%～23%, Substance 14～19g/m
2Become paper assay such as following table:
Prove absolutely that more than the bagasse pulp medium-to-high grade paper for daily use of manufacturing paper with pulp is practicable on meniscus high speed thin sheet toilet paper machine, but in order to ensure paper quality with produce normally, the proportional quantity of bagasse pulp is to be no more than 70% for good.Double-deck starching is more more superior than individual layer starching.Double-deck starching not only can be given full play to the effect of hardwood pulp according to the characteristic of different fibrous raw materials, makes the paper of producing soft fine and smooth, under the prerequisite that guarantees quality of finished paper, uses cheap bagasse pulp to make raw material to greatest extent, reduces production costs.In addition, wood pulp is used to paste the cylinder layer, has avoided the generation of sticking cylinder phenomenon.
Present technique compared with the prior art, its substantive distinguishing features and obvious improvement are:
1, utilize bagasse to make the raw material production paper for daily use, belong to the engineering that turns waste into wealth, with the bagasse raw material substitution timber of cheapness, can save the timber resources of shortage, exploitation pulping and paper-making new technology fully fully utilizes the sugaring industry.
2, utilize the bagasse raw material, produce the paper for daily use series of products of high-quality low-cost and have a bright future.Bleaching bagasse pulp is with low cost, than being that the paper for daily use of raw material production has 2000 yuan/ton price competition space with whole wood pulp fully.
3, equipment needed thereby only increases a cover pulper, reserve pit, fluffer, and disc mill, machine chest, stock pump and pressurized screen are transformed head box, and the equipment input is little, but the benefit that produces is much larger than input.
Because paper technology is improved, change two slurry flowing process into by the mixed pulp in past, the addition of bagasse pulp can reach 70%, produces normal.
Description of drawings
Fig. 1 is the structural representation of double-layer headbox.
As shown in Figure 1, double-layer headbox 1 is made as two-layer, and two pulp-inlet pipes are arranged above, is respectively wood pulp pipe and bagasse pulp pipe, The outlet of wood pulp pipe is at the bottom 3 of double-layer headbox 1, and the outlet of bagasse pulp pipe is at the surface layer 2 of double-layer headbox 1, bilayer The below of head box 1 is format roll 4.
All the other equipment do not have accompanying drawing, but Yankee cylinder top is provided with hot-air vapor cover, i.e. the efficient hot-air vapour cover of adapted single burner.
The structure of format roll, suction press roll, reel machine is identical with the use of common paper mill, no longer is described in detail herein.
The specific embodiment
Embodiment one: the bleaching needle-point leaf pulp with 30% is done to paste the cylinder surface layer, and 70% bleaching bagasse pulp is made bottom, and 14g/m2 face tissue, production speed of a motor vehicle 1300m/min, paper machine crepe ratio 20% are produced in double-deck starching.
Embodiment two: the bleaching needle-point leaf pulp with 10% adds 20% bleaching eucalyptus pulp do subsides cylinder surface layer, and 70% bleaching bagasse pulp is made bottom, and 14g/m2 face tissue, production speed of a motor vehicle 1300m/min, paper machine crepe ratio 20% are produced in double-deck starching.
Embodiment three: the bleaching bagasse pulp individual layer starching with 100%, produce the 19g/m2 toilet paper, production speed of a motor vehicle 1200-1300m/min.
Embodiment four: the bleaching eucalyptus pulp with 30% is done to paste the cylinder surface layer, and 70% bleaching bagasse pulp is made bottom, and 17g/m2 toilet paper, production speed of a motor vehicle 1200-1300m/min, paper machine crepe ratio 20-23% are produced in double-deck starching.
Embodiment five: the eucalyptus pulp with 20% adds 80% bleaching bagasse pulp, mixes back individual layer starching and produces 17g/m2 toilet paper, production speed of a motor vehicle 1200-1300m/min, paper machine crepe ratio 20-23%.
Claims (6)
1. one kind is utilized bagasse to be the manufacture paper with pulp method of paper for daily use of raw pulp, it is characterized in that: with wood pulp and bagasse pulp respectively pulping, discongest with defibrination after deliver to double-layer headbox on the high speed paper machine, wood pulp is attached on the casing wall of format roll on the paper machine, and bagasse pulp be attached to wood pulp above, obtain product through heated-air drying again, stick to wherein that wood pulp accounts for 20-50% on the paper machine format roll cylinder face, the bagasse pulp that is attached to the wood pulp surface is 50-80%.
2. the bagasse that utilizes according to claim 1 is the manufacture paper with pulp method of paper for daily use of raw pulp, it is characterized in that: the technological process of bagasse pulp is: the bagasse pulpboard--hydrabrusher--reserve pit--fluffer--disc mill--machine chest--bottom slurry fan pump--pressurized screen---bottom head box.
3. the bagasse that utilizes according to claim 1 is the manufacture paper with pulp method of paper for daily use of raw pulp, it is characterized in that: the technological process of wood pulp is: wood-pulp board--hydrabrusher--reserve pit--fluffer--disc mill--machine chest--surface layer fan pump--pressurized screen---surface layer head box.
4. the bagasse that utilizes according to claim 1 is the manufacture paper with pulp method of paper for daily use of raw pulp, it is characterized in that: the technological process of paper machine is: head box--format roll--suction press roll--Yang Ke cylinder---reel machine.
5. equipment of implementing one of claim 1-4 method, comprise head box, format roll, suction press roll, raise gram cylinder, reel machine, it is characterized in that: head box (1) is a double-layer headbox, it is made as two-layer, two pulp-inlet pipes are arranged above, be respectively wood pulp pipe and bagasse pulp pipe, the outlet of wood pulp pipe is at the bottom (3) of double-layer headbox (1), the outlet of bagasse pulp pipe is at the surface layer (2) of double-layer headbox (1), and the below of double-layer headbox (1) is format roll (4).
6. equipment according to claim 5 is characterized in that: Yankee cylinder top is provided with hot blast vapour cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021154015A CN100420791C (en) | 2002-01-01 | 2002-01-01 | Method and equipment for making high-grade life paper by using bagasse as material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021154015A CN100420791C (en) | 2002-01-01 | 2002-01-01 | Method and equipment for making high-grade life paper by using bagasse as material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1370888A CN1370888A (en) | 2002-09-25 |
| CN100420791C true CN100420791C (en) | 2008-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB021154015A Expired - Fee Related CN100420791C (en) | 2002-01-01 | 2002-01-01 | Method and equipment for making high-grade life paper by using bagasse as material |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101748645B (en) * | 2008-12-02 | 2011-09-07 | 福建省晋江优兰发纸业有限公司 | Toilet tissue and manufacturing method thereof |
| CN101748643B (en) * | 2008-12-02 | 2011-09-07 | 福建省晋江优兰发纸业有限公司 | Production process of ultra-low quantitative tissue paper |
| CN102517961B (en) * | 2012-01-06 | 2015-08-19 | 维达纸业(孝感)有限公司 | Paper thickness production control method |
| CN102885394A (en) * | 2012-01-11 | 2013-01-23 | 黄申元 | Double-layer papermaking process for paper-making reconstituted tobacco and equipment for double-layer papermaking process |
| CN103696318B (en) * | 2013-11-30 | 2016-05-18 | 广西原生纸业有限公司 | A kind of production method of face tissue of soft fluffy |
| CN105442375A (en) * | 2015-12-10 | 2016-03-30 | 周妙思 | Novel flow box |
| CN106939529A (en) * | 2017-04-19 | 2017-07-11 | 辽宁吉瑞生物科技有限公司 | A kind of fragrant body tissue making process for reading formula |
| CN108118552A (en) * | 2017-11-22 | 2018-06-05 | 云南新平南恩糖纸有限责任公司 | Bagasse paper production line |
| CN112391866A (en) * | 2019-08-19 | 2021-02-23 | 桂林奇峰纸业有限公司 | Method for producing food packaging paper by using bagasse pulp |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1306124A (en) * | 2001-03-20 | 2001-08-01 | 张国兴 | Technology for making hand tissue |
| CN1306125A (en) * | 2001-03-20 | 2001-08-01 | 张国兴 | Technology for making daily used paper |
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2002
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1306124A (en) * | 2001-03-20 | 2001-08-01 | 张国兴 | Technology for making hand tissue |
| CN1306125A (en) * | 2001-03-20 | 2001-08-01 | 张国兴 | Technology for making daily used paper |
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| CN1370888A (en) | 2002-09-25 |
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Address after: No. 100 Happy Road, Guigang City, Guangxi Zhuang Autonomous Region Patentee after: GUANGXI GUANGYUAN GUANGYE HOLDING CO., LTD. Address before: No. 100 Happy Road, Guigang City, Guangxi Zhuang Autonomous Region Patentee before: Guitang (Group) Co Ltd, Guangxi |
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Granted publication date: 20080924 Termination date: 20210101 |