CN102277764B - Method for preparing environmental-friendly cardboard paper by deinked sludge of wastepaper - Google Patents
Method for preparing environmental-friendly cardboard paper by deinked sludge of wastepaper Download PDFInfo
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- CN102277764B CN102277764B CN2011102326045A CN201110232604A CN102277764B CN 102277764 B CN102277764 B CN 102277764B CN 2011102326045 A CN2011102326045 A CN 2011102326045A CN 201110232604 A CN201110232604 A CN 201110232604A CN 102277764 B CN102277764 B CN 102277764B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
Abstract
The invention discloses a method for preparing environmental-friendly cardboard paper by deinked sludge of wastepaper. The method provided by the invention comprises the following steps of: mixing and pulping the deinked sludge of the wastepaper, recycled pulp of the papermaking white water, recycled pulp of the papermaking wastewater, slag of chemical pulp and wastepaper pulp for future use; then molding on a net, pressing, drying, calendering, winding and manufacturing paper with pulp. The method provided by the invention has the advantages of simple production process, reduced production cost and same tightness degree of the produced environmental-friendly cardboard paper rolls; the ration and the thickness are the same; the tightness degree of the paper and the ring crush compression resistance reach the quality standards which are higher than the C grade; and the paper is applied to the paper of the industries including each type of paper tube, yarn cops, fireworks and the like.
Description
Technical field
The present invention relates to pulp technology for making paper, particularly relate to the manufacture method of environmental-protection box paperboard.
Background technology
3,050 ten thousand tons of China's paper in 2000 and paperboard production, to 7,980 ten thousand tons of national paper in 2008 and production amounts, a year consumption figure is 60 kilograms per capita.Between past 8 years, paper and paperboard production are average annual increases by 12.78%, and consumption figure increases by 10.48% every year, all higher than the Chinese national economy GDP average growth rate per annum same period.The development of the paper industry of China by nearly 10 years, become the third-largest papermaking big country after the U.S., Japan, China is populous, the forest reserves are limited, and coverage rate is 16%, lower than world average level 28%, the shortage of the forest reserves, can not meet paper industry to the demand of raw material, annual China all wants a large amount of paper of import, cardboard, paper pulp, accounts for 66% of China's paper and cardboard consumption figure.On the other hand; the environmental pollution of adopting the plant resources pulping and paper-making to produce also becomes the problem that perplexs China's paper industry sustainable development; if can adopt an effective measure; actively reclaim discarded paper products; just can alleviate the present situation of papermaking raw material deficiency, simultaneously also be conducive to conserve forests, protection of the environment.In recent years, the development of the waste paper of China recycling had accounted for 1/3 of all paper making raw materials rapidly.In visible future, the producer that utilizes waste paper to carry out pulping and paper-making will get more and more.Entire society is to the recovery of waste paper and utilize technology will give increasing attention and concern.
The characteristics that deinking is processed line are take pulping, purification, screening, floatation and ink removing, hot dispersion, bleaching, carrying out washing treatment as main.Capital equipment has rotary drum pulping machine, HC Cleaner, pressurized screen, low dense desander, flotation cell, thickener, heat dispersion machine, bleaching tower etc.Because of the particularity of system process, the mode of each operation waste residue, printing ink filler and the fiber treatment of taking out of and utilize mode to differ in normal productive process.At present, owing to there is no good processing method, deinked sludge causes the problem of secondary pollution, is perplexing many papermaking enterprises.
Summary of the invention
The object of the invention is to for the deficiencies in the prior art, provide a kind of and can effectively utilize deinking mud, solve the secondary pollution problem, the method for utilizing deinking mud and producing the environmental-protection box paperboard with the reclaimed waste paper slurry for raw material.
Technical scheme of the present invention is as follows: a kind of method for preparing the environmental-protection box paperboard with deinking mud, comprise with deinking pulp, slurry, mthod of white water from paper making and reclaim slurry, pulp-making waste-water recovery slurry, chemical pulp screenings, secondary stock adapted after mixing making beating, through Top wire former, squeezing, drying, press polish, batch and manufacture paper with pulp, it is characterized in that: ⑴ slurry weight proportioning: deinking pulp, slurry (20 ~ 35): mthod of white water from paper making reclaims slurry (20 ~ 30): pulp-making waste-water reclaims slurry (20 ~ 40): chemical pulp screenings (5 ~ 10): secondary stock (10 ~ 25);
⑵ auxiliary material is: ﹙ a ﹚ sizing agent alkyl ketene dimer weight ratio 0.30～0.40% to the oven dry stock consumption; ﹙ b ﹚ dry strength agent 2 ~ 5kg/t ton; ﹙ c ﹚ ative starch 12 ~ 18kg/t ton.
⑶ the concentration of surfing the Net: 0.3-0.7% online beating degree: 19 ° of-28 ° of SR;
⑷ precompressed pressurization: 1# conducts oneself with dignity or all adds, and 2# is pressurised into: 0.1-0.13 kilogram
Main pressure pressurization: 0.3-0.45 kilogram/m2
Malleation is pressurised into: 0.4-0.5 kilogram/m2
Press polish is pressurised into: 0.3-0.5 kilogram/cm;
⑸ become paper moisture weight content to be: become paper moisture 8～10%.
Ative starch in described ⑵ is mainly taked to be injected on wet web on the net.
The characteristic of the environmental-protection box paperboard that the present invention makes: the boxboard that makes is quantitative: 250 g/m2～500 g/m2; Tightness 〉=0.7g/cm3; Moisture content 8-10%; In cross direction ration 5%; Folding strength is no less than 14 times.
Paper mill sludge (deinking mud) is produced the environmental-protection box paperboard in manufacturing process, because of slurry and wet end furnish is different, the unstable quality problems such as paper density, ring crush intensity that easily cause of technical data.The present invention reclaims the characteristic of slurry, pulp-making waste-water recovery slurry, chemical pulp screenings, five kinds of slurries of secondary stock, research wet end furnish, the impact of making beating on paper density, ring crush intensity according to deinking pulp, slurry, mthod of white water from paper making.Research paper machine operation parameter guarantees that ative starch liquid best angle is ejected into paper, guarantees the bond strength between ply of paper.
The present invention adopts deinking pulp, slurry, mthod of white water from paper making recovery slurry, pulp-making waste-water recovery slurry, chemical pulp screenings, secondary stock to join and copies the environmental-protection box paperboard, effectively utilize deinking mud to be raw material, overcome the shortcoming of deinking mud comprehensive development and utilization difficulty, reduced landfill, burning and reclaimed the paper mill sludge pollution on the environment, having reduced simultaneously the input cost of sewage treatment plant's lignin-sludge.
It is simple that the present invention has manufacturing technique, and manufacturing cost reduces, and the environmental-protection box paperboard volume degree of tightness of production is consistent; Quantitatively, the thickness homogeneous, paper density, ring crush intensity reach the above QUALITY STANDARD of C level, are applicable to the industry paper usings such as present all kinds of paper tube, spool, fireworks.
The specific embodiment
The present invention is further illustrated for following embodiment:
Embodiment 1:
Press deinking pulp, slurry 35: mthod of white water from paper making reclaims slurry 20: pulp-making waste-water reclaims slurry 30: chemical pulp screenings 5: secondary stock 10 proportioning modulation 950kg mix slurry, making beating to suitable beating degree is mixed first 35kg sizing agent alkyl ketene dimer (AKD), the 4kg dry strength agent, paper stock through garden net machine online, precompressed, main pressure, drying, press polish, batch, rewinding obtains environmental-protection box paperboard 1000kg.Manufacture paper with pulp the online concentration 0.45%; Ative starch is injected on wet web with the concentration of %, and the precompressed pressurization: 1# conducts oneself with dignity or all adds, and 2# is pressurised into: 0.1-0.13 kilogram; Main pressure pressurization: 0.3-0.45 kilogram/m2; Malleation is pressurised into: 0.4-0.5 kilogram/m2; Press polish is pressurised into: 0.3-0.5 kilogram/cm; Paper mill sludge (deinking mud) is produced the characteristic of environmental-protection box paperboard: the boxboard that makes is quantitative: 310 g/m2; Tightness 〉=0.72g/cm3; Moisture content 8%; Folding strength 14 times.
Embodiment 2:
Press deinking pulp, slurry 30: mthod of white water from paper making reclaims slurry 20: pulp-making waste-water reclaims slurry 20: chemical pulp screenings 10: secondary stock 20 proportioning modulation 950kg mix slurry, making beating to suitable beating degree is mixed first 35kg sizing agent alkyl ketene dimer (AKD), the 4kg dry strength agent, paper stock through garden net machine online, precompressed, main pressure, drying, press polish, batch, rewinding obtains environmental-protection box paperboard 1000kg.Manufacture paper with pulp the online concentration 0.35%; Ative starch is injected on wet web with the concentration of %, and the precompressed pressurization: 1# conducts oneself with dignity or all adds, and 2# is pressurised into: 0.1-0.13 kilogram; Main pressure pressurization: 0.3-0.45 kilogram/m2; Malleation is pressurised into: 0.4-0.5 kilogram/m2; Press polish is pressurised into: 0.3-0.5 kilogram/cm; Paper mill sludge (deinking mud) is produced the characteristic of environmental-protection box paperboard (C level paper tube paper): the boxboard that makes is quantitative: 480 g/m2; Tightness 〉=0.72g/cm3; Moisture content 8%; Folding strength 14 times, ring crush intensity: vertically 〉=4.34KN/m, laterally 〉=3.2 KN/m.
Embodiment 3:
Press deinking pulp, slurry 20: mthod of white water from paper making reclaims slurry 30: pulp-making waste-water reclaims slurry 20: chemical pulp screenings 5: secondary stock 25 proportioning modulation 950kg mix slurry, making beating to suitable beating degree is mixed first 35kg sizing agent alkyl ketene dimer (AKD), the 4kg dry strength agent, paper stock through garden net machine online, precompressed, main pressure, drying, press polish, batch, rewinding obtains environmental-protection box paperboard 1000kg.Manufacture paper with pulp the online concentration 0.30%; Ative starch is injected on wet web with the concentration of %, and the precompressed pressurization: 1# conducts oneself with dignity or all adds, and 2# is pressurised into: 0.1-0.13 kilogram; Main pressure pressurization: 0.3-0.45 kilogram/m2; Malleation is pressurised into: 0.4-0.5 kilogram/m2; Press polish is pressurised into: 0.3-0.5 kilogram/cm; Paper mill sludge (deinking mud) is produced the characteristic of environmental-protection box paperboard (liner board): the boxboard that makes is quantitative: 250 g/m2; Tightness 〉=0.70g/cm3; Moisture content 8.2%; Folding strength 16 times.
Claims (1)
1. method for preparing the environmental-protection box paperboard with deinking mud, it is characterized in that: comprise with deinking pulp, slurry, mthod of white water from paper making and reclaim slurry, pulp-making waste-water recovery slurry, chemical pulp screenings, secondary stock adapted after mixing making beating, through Top wire former, squeezing, drying, press polish, batch and manufacture paper with pulp, its main technologic parameters is as follows: ⑴ slurry weight proportioning: deinking pulp, slurry (20 ~ 35): mthod of white water from paper making reclaims slurry (20 ~ 30): pulp-making waste-water reclaims slurry (20 ~ 40): chemical pulp screenings (5 ~ 10): secondary stock (10 ~ 25);
⑵ auxiliary material is: ﹙ a ﹚ sizing agent alkyl ketene dimer weight ratio 0.30～0.40% to the oven dry stock consumption; ﹙ b ﹚ dry strength agent 2 ~ 5kg/t ton; ﹙ c ﹚ ative starch 12 ~ 18kg/t ton, described ative starch is mainly taked to be injected on wet web on the net;
⑶ the concentration of surfing the Net: 0.3-0.7% online beating degree: 19 ° of-28 ° of SR;
⑷ precompressed pressurization: 1# conducts oneself with dignity or all adds, and 2# is pressurised into: 0.1-0.13 kilogram
Main pressure pressurization: 0.3-0.45 kilogram/m
2
Malleation is pressurised into: 0.4-0.5 kilogram/m
2
Press polish is pressurised into: 0.3-0.5 kilogram/cm;
⑸ become paper moisture weight content to be: become paper moisture 8～10%.
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| CN2011102326045A CN102277764B (en) | 2011-08-15 | 2011-08-15 | Method for preparing environmental-friendly cardboard paper by deinked sludge of wastepaper |
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| CN2011102326045A CN102277764B (en) | 2011-08-15 | 2011-08-15 | Method for preparing environmental-friendly cardboard paper by deinked sludge of wastepaper |
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| CN102277764A CN102277764A (en) | 2011-12-14 |
| CN102277764B true CN102277764B (en) | 2013-06-26 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103215842B (en) * | 2012-12-24 | 2015-05-13 | 华泰集团有限公司 | New use of newspaper deinking sludge, and process for producing heavy sand pipe paper by adopting the use |
| CN103130039B (en) * | 2013-02-19 | 2016-12-28 | 桐乡市德盛纸业有限公司 | Mud compound paper pipe and manufacture method thereof |
| CN103437238B (en) * | 2013-08-22 | 2016-02-24 | 广东华泰纸业有限公司 | Newsprint paper mill sludge is utilized to produce the method for environmental friendly regenerated bobbin body paper |
| CN104250944B (en) * | 2014-08-14 | 2016-09-28 | 唐山市天正实业有限公司 | Cop tube paper production system and corresponding cop tube paper production technology |
| CN106315580A (en) * | 2016-08-22 | 2017-01-11 | 天津科技大学 | Active carbon preparation method using deinked sludge as raw material |
| CN107829334A (en) * | 2017-11-02 | 2018-03-23 | 江南大学 | A kind of sludge cardboard and preparation method thereof |
| CN109338811A (en) * | 2018-09-21 | 2019-02-15 | 岳阳林纸股份有限公司 | A method of it is mixed with paper mill sludge and prepares corner paper with a variety of recycled fibers |
| CN109629287A (en) * | 2018-12-28 | 2019-04-16 | 江苏理文造纸有限公司 | A method of moisture-proof kraft liner cardboard paper is prepared using wastewater sludge |
| CN110080031B (en) * | 2019-05-27 | 2021-08-20 | 联盛纸业（龙海）有限公司 | Production process of special core paper for compounding high-grade gray board paper |
| CN110230231A (en) * | 2019-06-17 | 2019-09-13 | 联盛纸业（龙海）有限公司 | A kind of cop tube paper and its preparation process |
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| CN101435171A (en) * | 2008-12-17 | 2009-05-20 | 安徽山鹰纸业股份有限公司 | Method for producing recuperated yarn tube base paper by using waste slag and product thereof |
| CN101565913A (en) * | 2009-05-08 | 2009-10-28 | 东莞玖龙纸业有限公司 | Method for producing corrugated paper with ultralow gram weight and high strength |
| CN101768891A (en) * | 2009-12-25 | 2010-07-07 | 江苏理文造纸有限公司 | Kraft liner cardboard paper and manufacturing method thereof |
| CN102002882A (en) * | 2010-09-25 | 2011-04-06 | 山东天地缘纸业有限公司 | Method for producing corrugated paper by utilizing papermaking waste residues and sludge |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101435171A (en) * | 2008-12-17 | 2009-05-20 | 安徽山鹰纸业股份有限公司 | Method for producing recuperated yarn tube base paper by using waste slag and product thereof |
| CN101565913A (en) * | 2009-05-08 | 2009-10-28 | 东莞玖龙纸业有限公司 | Method for producing corrugated paper with ultralow gram weight and high strength |
| CN101768891A (en) * | 2009-12-25 | 2010-07-07 | 江苏理文造纸有限公司 | Kraft liner cardboard paper and manufacturing method thereof |
| CN102002882A (en) * | 2010-09-25 | 2011-04-06 | 山东天地缘纸业有限公司 | Method for producing corrugated paper by utilizing papermaking waste residues and sludge |
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