CN102011334B - Method for pulping and making paper by using eucalyptus bark - Google Patents
Method for pulping and making paper by using eucalyptus bark Download PDFInfo
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Abstract
The invention discloses a method for pulping and making paper by using eucalyptus bark. In the method, the eucalyptus bark is directly used for producing corrugated paper by crushing, alkaline treatment and pulp grinding; the crushed eucalyptus bark is directly used for producing high-grade corrugated paper after colored substances in the bark are extracted and the processes such as the alkaline treatment, the pulp grinding and the like are performed; and after the colored substances in the bark are extracted, colorless pulp is ground by the processes such as steaming, decolorizing, bleaching and the like for producing white paper. Forest product waste is changed into things of value to create a new process and develop and a new resource; the process is practical and feasible and can be performed in the normal papermaking factories and fiber manufacturers; the forest product waste which pollutes the environment is used for reducing environmental pollution; the incomes of forest workers and peasants are increased by selling the bark; and the method can be used for producing a high-grade pulp material, has low cost and can realize both social benefit and economic benefit of production enterprises.
Description
Technical field
The present invention relates to field of papermaking, especially utilize the method for eucalyptus barks papermaking.
Background technology
Papermaking is one of Chinese four inventions, the present in the world main raw material of papermaking: (1) timber; (2) herbaceous plant; (3) waste paper reclaims.Timber is the main and optimum material of papermaking, and the most frequently used method of pulping wood is (a) mechanical jordaning method; (b) half chemiground pulp method; (c) all there are the shortcomings such as the large or pollutant discharge amount of energy consumption is large in chemiground pulp method, makes the papermaking cost higher, and environmental pressure is very big; Herbaceous plant slurrying cost is low, but fiber quality is poor, and the blowdown thing is many, is the kind of present domestic pressure; Waste paper reclaims has economy, environmental protection and the advantage such as economize on resources, but also exists resource acquisition, classification, minute defeated and use many difficulties, needs constantly perfect at aspects such as social habit and environmental protection legislations, to increase its rate of recovery and to utilize level.
Eucalyptus barks is integrated with national material paper in recent years, a large amount of Planting Fast-growing eucalyptus and the novel forest products discarded object that produces, can't effectively utilize always, a lot of a large amount of enterprises that use eucalyptus produce a large amount of eucalyptus barks, for consuming eucalyptus barks, reduce environmental pressure, have to transform boiler, not high calorific value, the dry eucalyptus barks burning that is difficult to is processed.
According to the study, eucalyptus barks is compared with other barks, has salient feature: (1) intensity is high, is easy to utilize; (2) bark structure is loose, adopts the methods such as simple alkali treatment, namely is easy to discongest, defibrination; (3) the own timber waste of bark, cost is low, and the source is wide; (4) eucalyptus barks is woody material, and fiber quality is good.Eucalyptus barks has good development prospect, therefore, how reasonably to utilize eucalyptus barks to become the society problem demanding prompt solution.
Summary of the invention
Technical problem to be solved by this invention provides a kind of method of utilizing eucalyptus barks papermaking, rationally utilizes the eucalyptus barks as waste material, reduces it to the pressure of environment; Take eucalyptus barks as raw material cooperates the different paper of existing various pulp production, of many uses.
For solving the problems of the technologies described above, technical scheme of the present invention is:
A kind of method of utilizing eucalyptus barks slurrying may further comprise the steps:
1) bark is removed impurity, fragmentation;
2) bark of fragmentation carried out alkali treatment;
3) bark after the alkali treatment is carried out defibrination, become bark fiber paper pulp.
As preferably, with 60 ℃ ~ 100 ℃ hot water lixiviate bark particles, remove DDGS in the bark behind the broken bark.
As preferably, bark fiber paper pulp becomes colourless paper pulp through boiling, bleaching again.
A kind of method of utilizing eucalyptus barks papermaking may further comprise the steps:
1) bark is removed impurity, fragmentation;
2) bark of fragmentation carried out alkali treatment;
3) bark after the alkali treatment is carried out defibrination, become bark fiber paper pulp;
4) bark fiber paper pulp and regenerated paper pulp or market pulp are mixed to get mixed pulp;
5) mixed pulp carries out page and manufactures paper with pulp, and the dehydration squeezing is dry, is organized at last paper.
As preferably, with 60 ℃ ~ 100 ℃ hot water lixiviate bark particles, remove DDGS in the bark behind the broken bark.
As preferably, bark is fractured into thread or sheet.
As preferably, alkali treatment bark later carries out high dense mill, and forming concentration is the crude pulp of 5-35%; Carry out again mill and become bark fiber paper pulp.
As preferably, bark fiber paper pulp becomes colourless paper pulp through boiling, bleaching again.
As preferably, with bark fiber paper pulp and regenerated paper pulp by volume (0.1 ~ 1): 1 is mixed to get mixed pulp.
As preferably, with bark fiber paper pulp and market pulp by volume (0.1 ~ 1): 1 is mixed to get mixed pulp.
The beneficial effect that the present invention compared with prior art brings is:
1, new resources utilization: utilize the forest products discarded object, make a silk purse out of a sow's ear, create new technology, the exploitation new resources;
2, technique practical of the present invention, general paper mill, fiber manufactory all can carry out;
3, environmental protection is friendly: use the forest products discarded object of contaminated environment, environmental contamination reduction;
4, increasing peasant income: forest worker, peasant increase income by selling bark;
5, the present invention produces high-quality slurry material, and cost is low, can make manufacturing enterprise realize socialbenefit and economic effect's bumper harvests.
Description of drawings
Fig. 1 is the process chart of papermaking of the present invention.
The specific embodiment
The invention will be further described below in conjunction with Figure of description.
Embodiment 1
Present embodiment carries out papermaking with the Eucalyptus urophylla bark and utilizes analytic explanation, utilizes the Eucalyptus urophylla bark to make the method for corrugated paper, as shown in Figure 1, may further comprise the steps:
1) bark is removed impurity, then is broken into threadly, with 60 ℃ of hot water lixiviate bark particles, removes the interior DDGS of bark behind the broken bark;
2) bark of fragmentation carried out alkali treatment;
3) alkali treatment bark later carries out high dense mill, and formation concentration is 5% crude pulp; Carry out again mill and become bark fiber paper pulp;
4) with bark fiber paper pulp and regenerated paper pulp by volume 0.1:1 be mixed to get mixed pulp;
5) mixed pulp carries out page and manufactures paper with pulp, and the dehydration squeezing is dry, is organized at last paper.
Utilize eucalyptus barks to make the analytical table of corrugated paper
| [0001]? Name of product | [0002]? Anti-folding index | [0003]? The resistance to compression index | [0004]? Output/year |
| [0005]? Eucalyptus urophylla | [0006]? 10% | [0007]? 15% | [0008]? 30,000 tons |
Embodiment 2
Present embodiment carries out papermaking with the Eucalyptus urophylla bark and utilizes analytic explanation, utilizes the Eucalyptus urophylla bark to make the method for corrugated paper, as shown in Figure 1, may further comprise the steps:
1) bark is removed impurity, then is broken into threadly, with 80 ℃ of hot water lixiviate bark particles, removes the interior DDGS of bark behind the broken bark;
2) the bark particle is carried out alkali treatment;
3) alkali treatment bark later carries out high dense mill, and formation concentration is 15% crude pulp; Carry out again mill and become bark fiber paper pulp;
4) with bark fiber paper pulp and regenerated paper pulp by volume 0.5:1 be mixed to get mixed pulp;
5) mixed pulp carries out page and manufactures paper with pulp, and the dehydration squeezing is dry, is organized at last paper.
Utilize eucalyptus barks to make the analytical table of corrugated paper
| [0009]? Name of product | [0010]? Anti-folding index | [0011]? The resistance to compression index | [0012]? Output/year |
| [0013]? Eucalyptus urophylla | [0014]? 32% | [0015]? 45% | [0016]? 3.2 ten thousand tons |
Embodiment 3
Present embodiment carries out papermaking with the Eucalyptus urophylla bark and utilizes analytic explanation, utilizes the Eucalyptus urophylla bark to make the method for corrugated paper, as shown in Figure 1, may further comprise the steps:
1) bark is removed impurity, then is broken into sheet, with 100 ℃ of hot water lixiviate bark particles, removes DDGS in the bark behind the broken bark;
2) the bark particle is carried out alkali treatment;
3) alkali treatment bark later carries out high dense mill, and formation concentration is 35% crude pulp; Carry out again mill and become bark fiber paper pulp;
4) with bark fiber paper pulp and regenerated paper pulp by volume 1:1 be mixed to get mixed pulp;
5) mixed pulp carries out page and manufactures paper with pulp, and the dehydration squeezing is dry, is organized at last paper.
Utilize eucalyptus barks to make the analytical table of corrugated paper
| [0017]? Name of product | [0018]? Anti-folding index | [0019]? The resistance to compression index | [0020]? Output/year |
| [0021]? Eucalyptus urophylla | [0022]? 62% | [0023]? 78% | [0024]? 3.1 ten thousand tons |
Embodiment 4
Present embodiment carries out papermaking with the blue gum bark and utilizes analytic explanation, utilizes the blue gum leather to make the method for senior corrugated paper, as shown in Figure 1, may further comprise the steps:
1) bark is removed impurity, then is broken into the sheet of 20mm size, with 60 ℃ of hot water lixiviate bark particles, removes DDGS in the bark behind the broken bark;
2) the bark particle after soaking is carried out alkali treatment;
3) alkali treatment bark later carries out high dense mill, and formation concentration is 5% crude pulp; Carry out again mill and become bark fiber paper pulp;
4) with bark fiber paper pulp and regenerated paper pulp by volume 0.1:1 be mixed to get mixed pulp;
5) mixed pulp carries out page and manufactures paper with pulp, and the dehydration squeezing is dry, is organized at last paper.
Utilize eucalyptus barks to make the analytical table of senior corrugated paper
| [0025]? Name of product | [0026]? Anti-folding index | [0027]? The resistance to compression index | [0028]? Output/year |
| [0029]? Blue gum | [0030]? 32% | [0031]? 41% | [0032]? 3.5 ten thousand tons |
Embodiment 5
Present embodiment carries out papermaking with the blue gum bark and utilizes analytic explanation, utilizes the blue gum leather to make the method for senior corrugated paper, as shown in Figure 1, may further comprise the steps:
1) bark is removed impurity, then is broken into the sheet of 30mm size, with 80 ℃ of hot water lixiviate bark particles, removes DDGS in the bark behind the broken bark;
2) the bark particle after soaking is carried out alkali treatment;
3) alkali treatment bark later carries out high dense mill, and formation concentration is 20% crude pulp; Carry out again mill and become bark fiber paper pulp;
4) with bark fiber paper pulp and market pulp by volume 0.5:1 be mixed to get mixed pulp;
5) mixed pulp carries out page and manufactures paper with pulp, and the dehydration squeezing is dry, is organized at last paper paper.
Utilize eucalyptus barks to make the analytical table of senior corrugated paper
| [0033]? Name of product | [0034]? Anti-folding index | [0035]? The resistance to compression index | [0036]? Output/year |
| [0037]? Blue gum | [0038]? 64% | [0039]? 81% | [0040]? 3.4 ten thousand tons |
Embodiment 6
Present embodiment carries out papermaking with the blue gum bark and utilizes analytic explanation, utilizes the blue gum leather to make the method for senior corrugated paper, as shown in Figure 1, may further comprise the steps:
1) bark is removed impurity, then is broken into the sheet of 40mm size, with 100 ℃ of hot water lixiviate bark particles, removes DDGS in the bark behind the broken bark;
2) the bark particle after soaking is carried out alkali treatment;
3) alkali treatment bark later carries out high dense mill, and formation concentration is 35% crude pulp; Carry out again mill and become bark fiber paper pulp;
4) with bark fiber paper pulp and regenerated paper pulp by volume 1:1 be mixed to get mixed pulp;
5) mixed pulp carries out page and manufactures paper with pulp, and the dehydration squeezing is dry, is organized at last paper paper.
Utilize eucalyptus barks to make the analytical table of senior corrugated paper
| [0041]? Name of product | [0042]? Anti-folding index | [0043]? The resistance to compression index | [0044]? Output/year |
| [0045]? Blue gum | [0046]? 72% | [0047]? 96% | [0048]? 3.4 ten thousand tons |
Embodiment 7
Present embodiment carries out papermaking with the eucalyptus camaldulensis bark and utilizes analytic explanation, utilizes the red gum leather to make the method for brown paper, as shown in Figure 1, may further comprise the steps:
1) bark is removed impurity, then is broken into the thread of 20mm size, with 60 ℃ of hot water lixiviate bark particles, removes DDGS in the bark behind the broken bark;
2) the bark particle after soaking is carried out alkali treatment;
3) alkali treatment bark later carries out high dense mill, and formation concentration is 5% crude pulp; Carry out again mill and become bark fiber paper pulp;
4) with bark fiber paper pulp and regenerated paper pulp by volume 0.1:1 be mixed to get mixed pulp;
5) mixed pulp carries out page and manufactures paper with pulp, and the dehydration squeezing is dry, is organized at last paper paper.
Utilize eucalyptus barks to make the analytical table of brown paper
| [0049]? Name of product | [0050]? Anti-folding index | [0051]? Cost descends | [0052]? Output/year |
| [0053]? Eucalyptus camaldulensis | [0054]? 11% | [0055]? 7% | [0056]? 3.0 ten thousand tons |
Embodiment 8
Present embodiment carries out papermaking with the eucalyptus camaldulensis bark and utilizes analytic explanation, utilizes the red gum leather to make the method for brown paper, as shown in Figure 1, may further comprise the steps:
1) bark is removed impurity, then is broken into the thread of 30mm size, with 80 ℃ of hot water lixiviate bark particles, removes DDGS in the bark behind the broken bark;
2) the bark particle after soaking is carried out alkali treatment;
3) alkali treatment bark later carries out high dense mill, and formation concentration is 15% crude pulp; Carry out again mill and become bark fiber paper pulp;
4) with bark fiber paper pulp and market pulp by volume 0.5:1 be mixed to get mixed pulp;
5) mixed pulp carries out page and manufactures paper with pulp, and the dehydration squeezing is dry, is organized at last paper.
Utilize eucalyptus barks to make the analytical table of brown paper
| [0057]? Name of product | [0058]? Anti-folding index | [0059]? Cost descends | [0060]? Output/year |
| [0061]? Eucalyptus camaldulensis | [0062]? 20% | [0063]? 13% | [0064]? 3.1 ten thousand tons |
Embodiment 9
Present embodiment carries out papermaking with the eucalyptus camaldulensis bark and utilizes analytic explanation, utilizes the red gum leather to make the method for brown paper, as shown in Figure 1, may further comprise the steps:
1) bark is removed impurity, then is broken into the thread of 40mm size, with 100 ℃ of hot water lixiviate bark particles, removes DDGS in the bark behind the broken bark;
2) the bark particle after soaking is carried out alkali treatment;
3) alkali treatment bark later carries out high dense mill, and formation concentration is 35% crude pulp; Carry out again mill and become bark fiber paper pulp;
4) with bark fiber paper pulp and pure wood pulp by volume 1:1 be mixed to get mixed pulp;
5) mixed pulp carries out page and manufactures paper with pulp, and the dehydration squeezing is dry, is organized at last paper paper.
Utilize eucalyptus barks to make the analytical table of brown paper
| [0065]? Name of product | [0066]? Anti-folding index | [0067]? Cost descends | [0068]? Output/year |
| [0069]? Eucalyptus camaldulensis | [0070]? 27% | [0071]? 30% | [0072]? 3.2 ten thousand tons |
Embodiment 10
Present embodiment carries out papermaking with the flooded gum bark and utilizes analytic explanation, utilizes the flooded gum leather to make the method for blank sheet of paper, as shown in Figure 1, may further comprise the steps:
1) bark is removed impurity, then is broken into the thread of 20mm size, with 60 ℃ of hot water lixiviate bark particles, removes DDGS in the bark behind the broken bark;
2) the bark particle after soaking is carried out alkali treatment;
3) alkali treatment bark later carries out high dense mill, and formation concentration is 5% crude pulp; Carry out again mill and become bark fiber paper pulp;
4) bark fiber paper pulp is carried out boiling, bleaching;
5) with bark fiber paper pulp and regenerated paper pulp by volume 0.1:1 be mixed to get mixed pulp;
6) mixed pulp carries out page and manufactures paper with pulp, and the dehydration squeezing is dry, is organized at last paper paper.
Utilize eucalyptus barks to make the analytical table of blank sheet of paper
| [0073]? Name of product | [0074]? Anti-folding index | [0075]? Tensile index | [0076]? Output/year |
| [0077]? Flooded gum | [0078]? 18% | [0079]? 22% | [0080]? 2.8 ten thousand tons |
Embodiment 11
Present embodiment carries out papermaking with the flooded gum bark and utilizes analytic explanation, utilizes the flooded gum leather to make the method for blank sheet of paper, as shown in Figure 1, may further comprise the steps:
1) bark is removed impurity, then is broken into the thread of 30mm size, with 80 ℃ of hot water lixiviate bark particles, removes DDGS in the bark behind the broken bark;
2) the bark particle after soaking is carried out alkali treatment;
3) alkali treatment bark later carries out high dense mill, and formation concentration is 25% crude pulp; Carry out again mill and become bark fiber paper pulp;
4) bark fiber paper pulp is carried out boiling, bleaching;
5) with bark fiber paper pulp and market pulp by volume 0.5:1 be mixed to get mixed pulp;
6) mixed pulp carries out page and manufactures paper with pulp, and the dehydration squeezing is dry, is organized at last paper paper.
Utilize eucalyptus barks to make the analytical table of blank sheet of paper
| [0081]? Name of product | [0082]? Anti-folding index | [0083]? Tensile index | [0084]? Output/year |
| [0085]? Flooded gum | [0086]? 21% | [0087]? 30% | [0088]? 2.7 ten thousand tons |
Embodiment 12
Present embodiment carries out papermaking with the flooded gum bark and utilizes analytic explanation, utilizes the flooded gum leather to make the method for blank sheet of paper, as shown in Figure 1, may further comprise the steps:
1) bark is removed impurity, then is broken into the thread of 40mm size, with 100 ℃ of hot water lixiviate bark particles, removes DDGS in the bark behind the broken bark;
2) the bark particle after soaking is carried out alkali treatment;
3) alkali treatment bark later carries out high dense mill, and formation concentration is 35% crude pulp; Carry out again mill and become bark fiber paper pulp;
4) bark fiber paper pulp is carried out boiling, bleaching;
5) with bark fiber paper pulp and colourless paper pulp by volume 1:1 be mixed to get mixed pulp;
6) mixed pulp carries out page and manufactures paper with pulp, and the dehydration squeezing is dry, is organized at last paper paper.
Utilize eucalyptus barks to make the analytical table of blank sheet of paper
| [0089]? Name of product | [0090]? Anti-folding index | [0091]? Tensile index | [0092]? Output/year |
| [0093]? Flooded gum | [0094]? 25% | [0095]? 32% | [0096]? 2.6 ten thousand tons |
In sum, the regenerated paper pulp that proposes among the embodiment, pure wood pulp, market pulp and colourless paper pulp are the paper pulp that existing technique can be made, and no longer describe in detail in the case of the present invention.
Claims (2)
1. method of utilizing eucalyptus barks slurrying is characterized in that: may further comprise the steps:
1) bark is removed impurity, fragmentation; With 60 ℃ ~ 100 ℃ hot water lixiviate bark particles, remove DDGS in the bark behind the broken bark;
2) bark of fragmentation carried out alkali treatment;
3) bark after the alkali treatment is carried out defibrination, become bark fiber paper pulp;
4) bark fiber paper pulp becomes colourless paper pulp through boiling, bleaching again.
2. method of utilizing eucalyptus barks papermaking is characterized in that may further comprise the steps:
1) bark is removed impurity, fragmentation, and bark is fractured into thread or sheet; With 60 ℃ ~ 100 ℃ hot water lixiviate bark particles, remove DDGS in the bark behind the broken bark;
2) bark of fragmentation carried out alkali treatment;
3) alkali treatment bark later carries out high dense mill, and forming concentration is the crude pulp of 5-35%; Carry out again mill and become bark fiber paper pulp; Bark fiber paper pulp becomes colourless paper pulp through boiling, bleaching again;
4) with bark fiber paper pulp and regenerated paper pulp or commercial pulp by volume (0.1 ~ 1): 1 is mixed to get mixed pulp;
5) mixed pulp carries out page and manufactures paper with pulp, and the dehydration squeezing is dry, is organized at last paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010540158 CN102011334B (en) | 2010-11-11 | 2010-11-11 | Method for pulping and making paper by using eucalyptus bark |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010540158 CN102011334B (en) | 2010-11-11 | 2010-11-11 | Method for pulping and making paper by using eucalyptus bark |
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| Publication Number | Publication Date |
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| CN102011334A CN102011334A (en) | 2011-04-13 |
| CN102011334B true CN102011334B (en) | 2013-04-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020245071A1 (en) * | 2019-06-03 | 2020-12-10 | Raiz - Instituto De Investigação Da Floresta E Papel | Eucalyptus globulus bark pulp for tissue products |
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| CN105986505A (en) * | 2015-02-05 | 2016-10-05 | 福建省泉州海丝船舶评估咨询有限公司 | Paper prepared from Zongtong fiber and production method thereof |
| CA2979048C (en) * | 2015-03-11 | 2021-03-16 | Andritz Inc. | Processes and systems for the pulping of lignocellulosic materials |
| CN106223106B (en) * | 2016-07-27 | 2018-02-09 | 阜南县腾祥工艺品有限公司 | A kind of preparation method of constitutionally stable weaving paper |
| CN109183485B (en) * | 2018-08-06 | 2020-01-14 | 华南理工大学 | Totally chlorine-free bleaching method and application of bark pulp for writing and painting paper |
| CN109082929A (en) * | 2018-09-06 | 2018-12-25 | 梁理鼎 | A kind of method and paper pulp using eucalyptus barks production paper making pulp |
| CN112411257A (en) * | 2020-11-04 | 2021-02-26 | 江西中竹生物质科技有限公司 | Method for producing degradable mulching paper by using eucalyptus waste sheet pulp |
| CN112342814B (en) * | 2020-11-19 | 2023-03-31 | 横县东糖糖业有限公司纸业分公司 | Method for producing high-strength natural-color paper pulp by taking eucalyptus bark as raw material |
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| CN1010329B (en) * | 1988-06-17 | 1990-11-07 | 新华造纸厂 | Filter paper made from mulberry bark biber and making process thereof |
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Patent Citations (4)
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|---|---|---|---|---|
| CN1839227A (en) * | 2003-10-02 | 2006-09-27 | 安德里茨有限公司 | Multi-stage AP mechanical pulping process with refiner flow line treatment |
| CN101037849A (en) * | 2006-03-17 | 2007-09-19 | 中国科学院大连化学物理研究所 | Method for paper-making pulping with CMP method |
| CN101613975A (en) * | 2009-07-17 | 2009-12-30 | 中国林业科学研究院林产化学工业研究所 | Utilize the poplar industrial wood waste to produce cultural paper and join the method for floating the whitening machine slurry of plagiarizing |
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| WO2020245071A1 (en) * | 2019-06-03 | 2020-12-10 | Raiz - Instituto De Investigação Da Floresta E Papel | Eucalyptus globulus bark pulp for tissue products |
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