CN1525004A - Processing method of regenerated corrugated base paper - Google Patents
Processing method of regenerated corrugated base paper Download PDFInfo
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- CN1525004A CN1525004A CNA031511171A CN03151117A CN1525004A CN 1525004 A CN1525004 A CN 1525004A CN A031511171 A CNA031511171 A CN A031511171A CN 03151117 A CN03151117 A CN 03151117A CN 1525004 A CN1525004 A CN 1525004A
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- 238000003672 processing method Methods 0.000 title claims abstract description 14
- 239000000835 fiber Substances 0.000 claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 22
- 239000010893 paper waste Substances 0.000 claims abstract description 20
- 238000012216 screening Methods 0.000 claims abstract description 20
- 239000010812 mixed waste Substances 0.000 claims abstract description 16
- 239000000126 substance Substances 0.000 claims abstract description 10
- 239000010791 domestic waste Substances 0.000 claims abstract description 4
- 238000000227 grinding Methods 0.000 claims abstract description 4
- 238000005507 spraying Methods 0.000 claims abstract description 4
- 239000002002 slurry Substances 0.000 claims description 39
- 229920002472 Starch Polymers 0.000 claims description 24
- 235000019698 starch Nutrition 0.000 claims description 24
- 239000008107 starch Substances 0.000 claims description 24
- 230000015556 catabolic process Effects 0.000 claims description 17
- 238000006731 degradation reaction Methods 0.000 claims description 17
- 230000008929 regeneration Effects 0.000 claims description 14
- 238000011069 regeneration method Methods 0.000 claims description 14
- 238000010009 beating Methods 0.000 claims description 10
- 239000012535 impurity Substances 0.000 claims description 9
- 238000007670 refining Methods 0.000 claims description 8
- 239000012141 concentrate Substances 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 4
- 229920000881 Modified starch Polymers 0.000 claims description 3
- 239000004368 Modified starch Substances 0.000 claims description 3
- 235000019426 modified starch Nutrition 0.000 claims description 3
- 230000001172 regenerating effect Effects 0.000 claims description 2
- 239000000123 paper Substances 0.000 abstract description 50
- 238000005516 engineering process Methods 0.000 abstract description 11
- 239000002994 raw material Substances 0.000 abstract description 9
- 238000004537 pulping Methods 0.000 abstract description 7
- 239000002562 thickening agent Substances 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 3
- 239000000654 additive Substances 0.000 abstract 1
- 230000000996 additive effect Effects 0.000 abstract 1
- 239000012752 auxiliary agent Substances 0.000 abstract 1
- 239000002609 medium Substances 0.000 description 18
- 239000002699 waste material Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 239000011087 paperboard Substances 0.000 description 3
- 229920001131 Pulp (paper) Polymers 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229920002101 Chitin Polymers 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 239000012572 advanced medium Substances 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
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Abstract
A processing method of regenerated corrugated base paper belongs to the technical field of regenerated paper manufacturing in the paper making industry and is mainly carried out according to the following process flows: mixing imported waste paper and domestic waste paper, pulping by a pulper, desanding by a high-concentration desander, screening by a fiber separator, desanding by a medium-concentration desander, screening by a low-concentration pressure screen, desanding by a low-concentration desander, concentrating by a thickener, grinding and pulping by a medium-concentration hydraulic disc grinder, screening by a pressure screen, papermaking by a papermaking machine, spraying a papermaking chemical additive during forming, and slitting by a rewinder. The addition amount of the imported waste paper in the mixed waste paper can be 40-55% of the total weight of the mixed waste paper. The invention adopts the advanced medium-consistency pulping technology and adds the papermaking chemical auxiliary agent during the forming, thereby changing the traditional low-consistency pulping process. The process design is reasonable, the physical strength of the regenerated corrugated medium can be effectively improved, the raw material cost is reduced, the production line investment is moderate, and the method is suitable for medium-scale production of the regenerated corrugated medium.
Description
Technical field
The present invention relates to a kind of processing method of the fluting medium of regenerating, belong to the manufacturing technology field of recycled writing paper in the paper industry.
Background technology
Existing is the production of fluting base paper line of raw material with waste paper, divides three kinds according to the production scale size is main, and its technology and characteristics are also different.
Traditional technological process is: waste paperboard, hydrabrusher size degradation, the desanding of sand setting ditch, screen centrifuge desanding, thickener concentrate, 450 double plates mill is pulled an oar, hang down dense desander desanding, selectifier screens, paper machine is manufactured paper with pulp, rewinding machine is cut, finished product.The characteristics of this flow process are: 1, production scale is little, investment is little; 2, backward in technique; 3, product quality is of low grade, can not use on the above corrugated paper production line of 100m/min; 4, sewage effluent pollutional load height.
Medium scale waste paper is that the production of fluting base paper line of raw material is: waste paperboard, continous mode pulper size degradation, high concentration desanding device desanding, defibrator screening, heat dispersion machine remove that light impurity, pressurized screen screening, low dense desander desanding, thickener concentrate, double plate or cone mill making beating, pressurized screen screening, paper machine are manufactured paper with pulp, rewinding machine is cut, finished product.The characteristics of this flow process are: 1, production capacity is big, can reach 5～60,000 tons/year; 2, technology is advanced; 3, product quality can reach the GB13023-91B level, can adapt to the 180m/min corrugated paper production line.But this flow process is handled not thorough to the viscose glue thing in the waste paper, hot-melt object, making beating is stronger to the cut-out of waste paper fibre, the further raising of product physical quality index need realize that the product appearance quality index is difficult to further raising by increasing more import long fiber wastepaper as raw material proportioning.
Large-scale waste paper is that the production of fluting base paper line of raw material is: waste paperboard, pulper size degradation, high concentration desanding device desanding, fractionating screen screening, heat dispersion machine remove that light impurity, pressurized screen screening, low dense desander desanding, thickener concentrate, double plate or cone mill making beating, pressurized screen screening, paper machine are manufactured paper with pulp, rewinding machine is cut, finished product.The characteristics of this flow process are: 1, production capacity is big, reaches more than 100,000 tons/year; 2, advanced technology is handled thoroughly light, the heavy seeds in the waste paper, sicker, and paper pulp fiber carries out classification, and staple fibre is not pulled an oar; 3, add papermaking chemical, improve the product physical strength, reduce the waste discharge pollutional load; 4, product quality reaches the GB13023-91A level, and what reach import fully is the A level product physics and the quality index appearance of raw material with former wood pulp.But this flow process investment is big, does not fit into medium-scale production.
Summary of the invention
It is reasonable to the purpose of this invention is to provide a kind of technological design, can effectively improve the physical strength of regeneration fluting medium, reduces cost of material, adapts to the processing method of the regeneration fluting medium of medium-scale production.
The present invention is the processing method of regeneration fluting medium, it is characterized in that being undertaken by following technological process:
(1), batching: imported waste paper is mixed with domestic waste paper;
(2), size degradation: with mixed waste paper size degradation in hydrabrusher;
(3), high dense desanding: in high concentration desanding device, remove the great impurity of mixed waste paper slurry internal ratio;
(4), fiber separation: in the multiple fibre seperator, the mixed waste paper slurry is carried out secondary size degradation, desanding, remove light impurity and heavy seeds in the slurry;
(5), dense desanding in: in further remove heavy seeds in the slurry in the dense desander;
(6), low dense screening: in low dense pressurized screen slurry is screened, good slurry enters next process;
(7), low dense desanding: in low dense desander, remove in the good slurry than heavy seeds;
(8), concentrate: in decker, good slurry is concentrated;
(9), medium consistency refining: in middle dope platen grinding machine, good slurry is ground making beating;
(10), pressurized screen screening before the net: slurry is carried out once more selectedly in low dense pressurized screen, good slurry enters the online of paper machine air-cushioned head box and manufactures paper with pulp;
(11), manufacture paper with pulp: on the fluting medium paper machine good slurry is manufactured paper with pulp into paper, good slurry is spraying papermaking chemical when moulding earlier, batches after squeezing, oven dry then.
The addition of imported waste paper can be the 40-55% of mixed waste paper gross weight in the described mixed waste paper.
The papermaking chemical that adds in the described operation of manufacturing paper with pulp can be multicomponent modified starch.
The size degradation concentration of mixed waste paper can be 3.5～4.5% in the described size degradation operation.
The concentration of advancing to starch in dense desanding operation of described height and the fiber separation operation can be 3～3.5%.
The concentration of advancing to starch in described in the dense desanding operation can be 2～2.5%.
Described low dense screening process, low dense desanding operation, enrichment process, the concentration of advancing to starch before the net in the pressurized screen screening process can be 0.5～1.5%.
The concentration of advancing to starch in the described medium consistency refining operation can be 7～9%.
The present invention compared with prior art has following outstanding advantage and good effect:
1, adopts advanced medium consistency refining technology, changed traditional low consistency pulping technology.Mainly by fiber itself intensity and the decision of fiber combining power, making beating makes pulp fiber conquassation, brooming, fibrillating, neat and well spaced to the intensity of fluting medium, thereby improves adhesion between paper fibre.The present invention adopts the medium consistency refining technology that pulp fiber is cut off hardly, conquassation, brooming, fibrillating effect to pulp fiber are better than low consistency pulping technological effect, thereby improved the physical strength of product, and reduced the consumption of import long fiber wastepaper as raw material, reduced production cost.Through test relatively, compare with existing low consistency pulping technology, after the employing medium consistency refining technology, the ring crush index of the product that homogeneous raw material is produced and fracture length improve respectively more than 18% and 15%.
2, add papermaking chemical during the moulding in the operation of manufacturing paper with pulp, improved the physical strength of hydrogen bonded power and paper between paper fibre, reduced the loss of fiber fines, alleviated the pollutional load of waste discharge.Relatively by adding papermaking chemical, with comparing that prior art does not add, the ring crush index of the product that homogeneous raw material is produced and fracture length improve respectively more than 15% and 10% through test, and its physical strength quality index reaches the GB13023-91A level.
3, rationally adjust the ratio of imported waste paper and homemade waste paper in the mixed waste paper, reduced the consumption of imported waste paper, both guaranteed the physical strength of regeneration fluting medium, reduced cost of material again.
Technological design of the present invention is reasonable, can effectively improve the physical strength of regeneration fluting medium, reduces cost of material, and the production line investment is moderate, is fit to medium scale regeneration production of fluting base paper.
The specific embodiment
1, batching: Japanese 11# imported waste paper, U.S. 11# imported waste paper, domestic old carton are pressed (30-40%): (10-15%): (60-45%) proportioning is mixed, from the chain mat machine material loading.
2, size degradation: the mixed waste paper size degradation in hydrabrusher that will be made up of imported waste paper and domestic waste paper, size degradation concentration is controlled at 3.5～4.5%.
3, high dense desanding: remove ironware, sand grains, staple, impurity that the glass geometric ratio is great by high concentration desanding device.Control advances to starch concentration 3～3.5%, inlet outlet pressure differential 0.1～0.15Mpa.
4, fiber separation: by the multiple fibre seperator, slurry is carried out secondary size degradation, desanding, remove the weight impurity in the slurry.Control advances to starch concentration 3～3.5%, advances to starch pressure 0.15～0.25Mpa, pulp pressure 0.1～0.15Mpa.
5, dense desanding in: by in dense desander further remove heavy seeds in the slurry.Control advances to starch concentration 2～2.5%, advances to starch pressure 0.2～0.3Mpa, inlet outlet pressure differential 0.1～0.24Mpa.
6, low dense screening: by low dense pressurized screen, slurry is screened, good slurry enters next process, tail slurry then together with the light impurity of multiple fibre seperator together through the sieve screening and separating of shaking.Control advances to starch concentration 0.75～1.2%, advances to starch pressure 0.2～0.3Mpa, inlet outlet pressure differential 0.01～0.02Mpa.
7, low dense desanding: by low dense desander, remove in the good slurry than heavy seeds.Control advances to starch concentration 0.75～0.85%, advances to starch pressure 0.275～0.31Mpa, inlet outlet pressure differential 0.025～0.06Mpa.
8, concentrate: by decker, good slurry is concentrated,, reduce the making beating power consumption to improve beating consistency.Control advances to starch concentration 0.75～1.2%, pulp concentration 7～9%.
9, medium consistency refining: by middle dope platen grinding machine, good slurry is ground making beating, under the situation that keeps fibre length as far as possible, reinforcing fibre divides silk, brooming.Control advances to starch concentration 7～9%, 28～35 ° of SR of beating degree.
10, pressurized screen screening before the net: by low dense pressurized screen, slurry is carried out once more selected, good slurry enters the online of paper machine air-cushioned head box and manufactures paper with pulp.Control advances to starch concentration 0.75～1.0%, advances to starch pressure 0.2～0.3Mpa, inlet outlet pressure differential 0.01～0.02Mpa.
11, manufacture paper with pulp: on the fluting medium paper machine, good slurry is manufactured paper with pulp into paper.3200/250 fluting medium paper machine mainly presses press section, wide pressure press section, drying cylinder portion etc. to form by air-cushioned head box, fourdrinier part, three rollers two, after good slurry enters paper machine, cloth is starched on air-cushioned head box earlier, enter the fourdrinier part moulding then, simultaneously at the fourdrinier part waterline with last rice, by concentration 1-10% proportioning (changing), even spraying DY-616E new multicomponent converted starch with paper machine speed.Press press sections and wide pressure press section through after the squeezing repeatedly at three rollers two then, batch after entering drying cylinder portion drying forming.Papermaking chemical generally adopts the papermaking dry strength agent, is divided into mainly that starch base dry strength agent, polyacrylamide are done strong resin, chitin modified thing increases dry reinforcer three classes, and it is multicomponent modified starch that the present invention selects a kind of of starch base dry strength agent for use.
12, rewinding is cut: cut according to customer requirement on rewinding machine.
Claims (8)
1, a kind of processing method of the fluting medium of regenerating is characterized in that being undertaken by following technological process:
(1), batching: imported waste paper is mixed with domestic waste paper;
(2), size degradation: with mixed waste paper size degradation in hydrabrusher;
(3), high dense desanding: in high concentration desanding device, remove the great impurity of mixed waste paper slurry internal ratio;
(4), fiber separation: in the multiple fibre seperator, the mixed waste paper slurry is carried out secondary size degradation, desanding, remove light impurity and heavy seeds in the slurry;
(5), dense desanding in: in further remove heavy seeds in the slurry in the dense desander;
(6), low dense screening: in low dense pressurized screen slurry is screened, good slurry enters next process;
(7), low dense desanding: in low dense desander, remove in the good slurry than heavy seeds;
(8), concentrate: in decker, good slurry is concentrated;
(9), medium consistency refining: in middle dope platen grinding machine, good slurry is ground making beating;
(10), pressurized screen screening before the net: slurry is carried out once more selectedly in low dense pressurized screen, good slurry enters the online of paper machine air-cushioned head box and manufactures paper with pulp;
(11), manufacture paper with pulp: on the fluting medium paper machine good slurry is manufactured paper with pulp into paper, good slurry is spraying papermaking chemical when moulding earlier, batches after squeezing, oven dry then.
2, by the processing method of the described regeneration fluting medium of claim 1, the addition that it is characterized in that imported waste paper in the described mixed waste paper is the 40--55% of mixed waste paper gross weight.
3, by the processing method of the described regeneration fluting medium of claim 1, it is characterized in that the papermaking chemical that adds in the described operation of manufacturing paper with pulp can be multicomponent modified starch.
4, by the processing method of the described regeneration fluting medium of claim 1, it is characterized in that the size degradation concentration of mixed waste paper in the described size degradation operation can be 3.5～4.5%.
5, by the processing method of the described regeneration fluting medium of claim 1, it is characterized in that the concentration of advancing to starch in dense desanding operation of described height and the fiber separation operation can be 3～3.5%.
6, by the processing method of the described regeneration fluting medium of claim 1, it is characterized in that described in the concentration of advancing to starch in the dense desanding operation can be 2～2.5%.
7, by the processing method of the described regeneration fluting medium of claim 1, it is characterized in that described low dense screening process, low dense desanding operation, enrichment process, the concentration of advancing to starch before the net in the pressurized screen screening process can be 0.5～1.5%.
8, by the processing method of the described regeneration fluting medium of claim 1, it is characterized in that the concentration of advancing to starch in the described medium consistency refining operation can be 7～9%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03151117 CN1268808C (en) | 2003-09-17 | 2003-09-17 | Processing method of regenerated corrugated base paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03151117 CN1268808C (en) | 2003-09-17 | 2003-09-17 | Processing method of regenerated corrugated base paper |
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| Publication Number | Publication Date |
|---|---|
| CN1525004A true CN1525004A (en) | 2004-09-01 |
| CN1268808C CN1268808C (en) | 2006-08-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03151117 Expired - Fee Related CN1268808C (en) | 2003-09-17 | 2003-09-17 | Processing method of regenerated corrugated base paper |
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| CN (1) | CN1268808C (en) |
Cited By (23)
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| CN101994276A (en) * | 2009-08-13 | 2011-03-30 | 上海嘉龙纸业有限公司 | Method for preparing higher-quality paper from waste compound paper source recycled paper pulp |
| CN101768891B (en) * | 2009-12-25 | 2012-09-05 | 江苏理文造纸有限公司 | Kraft liner cardboard paper and manufacturing method thereof |
| CN102677513A (en) * | 2011-03-10 | 2012-09-19 | 吴志钊 | Clean production process for papermaking from waste paper |
| CN103526627A (en) * | 2013-09-04 | 2014-01-22 | 无锡荣成纸业有限公司 | Method for producing compression resistant moisture-proof corrugating medium paper for heavy packaging |
| CN103711022A (en) * | 2014-01-08 | 2014-04-09 | 山东天地缘实业有限公司 | Carbon fiber high-strength corrugated raw board and preparing method thereof |
| CN103806319A (en) * | 2014-02-10 | 2014-05-21 | 浙江荣晟环保纸业股份有限公司 | Method for producing high-intensity corrugated body paper from waste paper |
| CN104032616A (en) * | 2014-06-24 | 2014-09-10 | 马鞍山纽泽科技服务有限公司 | Production method for core pulp |
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| CN104278594A (en) * | 2013-07-08 | 2015-01-14 | 浙江荣晟环保纸业股份有限公司 | Bobbin paper production technology |
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| CN109235097A (en) * | 2018-09-07 | 2019-01-18 | 中条山有色金属集团有限公司 | A kind of preparation method and applications of corrugating medium's body paper |
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- 2003-09-17 CN CN 03151117 patent/CN1268808C/en not_active Expired - Fee Related
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| CN101994276A (en) * | 2009-08-13 | 2011-03-30 | 上海嘉龙纸业有限公司 | Method for preparing higher-quality paper from waste compound paper source recycled paper pulp |
| CN101768891B (en) * | 2009-12-25 | 2012-09-05 | 江苏理文造纸有限公司 | Kraft liner cardboard paper and manufacturing method thereof |
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| CN104278594A (en) * | 2013-07-08 | 2015-01-14 | 浙江荣晟环保纸业股份有限公司 | Bobbin paper production technology |
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