CN104213449A - Paper regeneration method by wastepaper deinking - Google Patents
Paper regeneration method by wastepaper deinking Download PDFInfo
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- CN104213449A CN104213449A CN201310209221.5A CN201310209221A CN104213449A CN 104213449 A CN104213449 A CN 104213449A CN 201310209221 A CN201310209221 A CN 201310209221A CN 104213449 A CN104213449 A CN 104213449A
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- paper
- deinking
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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
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Abstract
The invention relates to a paper regeneration method by wastepaper deinking. According to the invention, recovered wastepaper can undergo deinking processing, paper pulp fiber in wastepaper is recovered, and the recovered paper pulp fiber is used as a papermaking raw material to prepare new paper. The paper regeneration method by wastepaper deinking comprises the following steps: Step 1, gathering and classification of wastepaper; Step 2, disassociation; Step 3, purification; Step 4, screening; Step 5, deinking and degumming; Step 6, washing and flotation; Step 7, heat dispersion; Step 8, screening; Step 9, bleaching; and Step 10, routine beating and papermaking of paper. The invention aims to provide an efficient wastepaper recycling method which causes little pollution to the environment.
Description
Technical field
The present invention relates to a kind of method of deinking recycled paper.Improve the rate of recovery of paper pulp fiber, reduce the damage of regenerated fiber, improve the recycling rates such as old newsprint, wastepaper, wrapping paper, useless books.
Background technology
Along with the increasingly stringent of world environments protection and the scarcity of natural resources, the needs of paper industry to secondary stock are increasing, the waste paper pulp-making technology also comparative maturity in the present age.Waste paper utilization rate is all attached great importance in the world, secondary stock resource should be made full use of, reduce deinking wastewater again to the pollution of environment.
The process of deinking recycled paper is the process of a physical chemistry connected applications.Waste paper makes secondary stock by smashing after classification, then by flow processs such as purification, screening deinking chemicals, the ink beyond removing paper pulp fiber and other impurity, recycle paper pulp fiber more afterwards and make new paper.Traditional Chemical Deinking, although the effect that paper pulp fiber is reclaimed in deinking is fine, also create more unmanageable waste water, dealing with improperly will heavy damage environment simultaneously.
Summary of the invention
The object of this invention is to provide a kind of method that energy high efficiency recycles waste paper, achieve deinking recycled paper.Not only solve the defect of other deinking process for waste paper contaminated environment, and also improve the recovery utilization rate of waste paper.
The process step that the present invention relates to is: the collection classification of first step waste paper, second step dissociation, the 3rd step purification, the 4th step screening, 5th step deinking and degumming, the 6th step washing flotation, the 7th step heat partition, 8th step screening, the 9th one-Step bleach, the making beating of the tenth step routine is manufactured paper with pulp papermaking operation.Specific embodiment of the invention operation is:
1. first the waste paper of recovery is carried out classification process, old newsprint, wastepaper, wrapping paper, useless books are screened, join in high density hydraulic pulper and carry out size degradation and dissociate, the great impurity of preliminary removing is as staple, stone etc.
2. the mixture in the first step is poured in clarifier-tank, wash, the loose colour on removing surface.
3. the mixture in second step is poured into the foreign particle that in screening machine, removing is mixed in wherein.
4. the mixture in the 3rd step is poured in deinking and degumming pond and carries out deinking and degumming process.
5. the mixture in the 4th step is poured in heat dispersion machine, by the impurity in mixture as sicker, paraffin, plastics, resin etc.Make sicker and paraffin be dispersed into minuteness particle, plastics etc. are condensed, be convenient to follow-up screening and remove.
6. the mixture in the 5th step is poured in postsearch screening machine and carries out screening removing impurity, then be poured into the bleaching carrying out routine in bleaching stove.
7. the mixture after bleaching is poured into senior general and concentrates making beating, then carry out conventional papermaking operation through wet method operation of manufacturing paper with pulp.
What deinking was here selected is enzyme-ultrasonic synergistic de-inking method.Cellulase process does not only have the chemicals in loss waste paper removal process, but also accelerates the disengaging of ink particle, convenient operation in the process of follow-up washing flotation and bleaching.The catalytic action of enzyme is comparatively large by the impact of environment, has used the method that cellulase and ultrasonic wave combine here.Ultrasonic wave energy makes paper pulp fiber produce strenuous vibration and phase mutual friction, and can improve the activity of cellulase, thus accelerates deviating from of ink particle, compensate for the deficiency of cellulase.Coming unstuck, what select is the microbiological degumming method of mulberry fibre.The method first mulberry skin is carried out infiltration process, is then inoculated in the mulberry skin infiltrating and processed with the degumming bacterium screening in the mulberry skin collected and cultivate and comes unstuck.
Concrete embodiment
According to content of the present invention, be below concrete implementation step:
Old newsprint, wastepaper, wrapping paper, useless books are screened by the first step: first the waste paper of recovery is carried out classification process, join in high density hydraulic pulper to carry out size degradation and dissociate, the great impurity of preliminary removing (staple, stone etc.).
Second step: the mixture in the first step is poured in clarifier-tank, washs, the loose colour on removing surface.
3rd step: the mixture in second step is poured into the foreign particle that in screening machine, removing is mixed in wherein.
4th step: the mixture in the 3rd step is poured in deinking and degumming pond and carries out deinking and degumming process.
5th step: the mixture in the 4th step is poured in heat dispersion machine, by the impurity in mixture as sicker, paraffin, plastics, resin etc.Make sicker and paraffin be dispersed into minuteness particle, plastics etc. are condensed, be convenient to follow-up screening and remove.
6th step: the mixture in the 5th step is poured in postsearch screening machine and carries out screening removing impurity, then be poured into the bleaching carrying out routine in bleaching stove.
7th step: the mixture after bleaching is poured in beater and pulls an oar, then carry out conventional papermaking operation through conventional wet method operation of manufacturing paper with pulp.
Claims (5)
1. the present invention is a kind of method of deinking recycled paper.The waste paper of recovery can be carried out deinking process by it, and the paper pulp fiber of recovery is made new paper as paper making raw material by the paper pulp fiber in reclaimed waste paper.The process step of deinking recycled paper is: the collection classification of first step waste paper, second step dissociation, the 3rd step purification, the 4th step screening, 5th step deinking and degumming, the 6th step washing flotation, the 7th step heat partition, 8th step screening, the 9th one-Step bleach, the making beating of the tenth step routine is manufactured paper with pulp papery operation.
2., according to the process step 2 in claim 1, its effect is as staple, stone etc. by the removing of great impurity.
3., according to the process step 5 in claim 1, the method that deinking process is selected is enzyme-ultrasonic synergistic de-inking method.The microbiological degumming method of what scouring processes was selected is mulberry fibre.
4., according to the process step 6 in claim 1, the method that washing and flotation combine, compensate for separately except the shortcoming of ink particle, improves the effect removing ink particle.
5., according to the process step 7 in claim 1, its effect utilizes the heat effect of physics to remove the ink particle, sicker, paraffin, plastics, resin etc. of a small amount of non-Ex-all.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310209221.5A CN104213449A (en) | 2013-05-30 | 2013-05-30 | Paper regeneration method by wastepaper deinking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310209221.5A CN104213449A (en) | 2013-05-30 | 2013-05-30 | Paper regeneration method by wastepaper deinking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104213449A true CN104213449A (en) | 2014-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310209221.5A Pending CN104213449A (en) | 2013-05-30 | 2013-05-30 | Paper regeneration method by wastepaper deinking |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105133409A (en) * | 2015-08-13 | 2015-12-09 | 合肥龙发包装有限公司 | Waste paper deinking method |
| CN107881827A (en) * | 2017-10-17 | 2018-04-06 | 福建希源纸业有限公司 | A kind of method that Deinking Pulp is prepared using biology enzyme |
| CN108130783A (en) * | 2017-12-06 | 2018-06-08 | 杭州春胜纸业有限公司 | A kind of synthesis pulping technique for assigning the high folding strength of coated white paperboard |
| CN111893797A (en) * | 2020-07-28 | 2020-11-06 | 宣城万里纸业有限公司 | Preparation method of environment-friendly recycled paper |
| CN112663372A (en) * | 2020-12-25 | 2021-04-16 | 东莞顺裕纸业有限公司 | Production method for reconstructing corrugated medium paper by using waste paper and capable of reducing pulping energy consumption |
| CN116274251A (en) * | 2023-03-29 | 2023-06-23 | 连云港赣榆强盛纸业有限公司 | Paperboard crushing and recycling device and recycling method |
-
2013
- 2013-05-30 CN CN201310209221.5A patent/CN104213449A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105133409A (en) * | 2015-08-13 | 2015-12-09 | 合肥龙发包装有限公司 | Waste paper deinking method |
| CN107881827A (en) * | 2017-10-17 | 2018-04-06 | 福建希源纸业有限公司 | A kind of method that Deinking Pulp is prepared using biology enzyme |
| CN108130783A (en) * | 2017-12-06 | 2018-06-08 | 杭州春胜纸业有限公司 | A kind of synthesis pulping technique for assigning the high folding strength of coated white paperboard |
| CN108130783B (en) * | 2017-12-06 | 2020-07-10 | 杭州春胜纸业有限公司 | Comprehensive pulping method capable of endowing coated white paperboard with high folding endurance |
| CN111893797A (en) * | 2020-07-28 | 2020-11-06 | 宣城万里纸业有限公司 | Preparation method of environment-friendly recycled paper |
| CN112663372A (en) * | 2020-12-25 | 2021-04-16 | 东莞顺裕纸业有限公司 | Production method for reconstructing corrugated medium paper by using waste paper and capable of reducing pulping energy consumption |
| CN116274251A (en) * | 2023-03-29 | 2023-06-23 | 连云港赣榆强盛纸业有限公司 | Paperboard crushing and recycling device and recycling method |
| CN116274251B (en) * | 2023-03-29 | 2023-11-17 | 连云港市赣榆区知识产权维权援助中心(连云港市赣榆区知识产权保护与服务中心) | Paperboard crushing and recycling device and recycling method |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141217 |