CS220858B1 - Method of treating the waste paper - Google Patents
Method of treating the waste paper Download PDFInfo
- Publication number
- CS220858B1 CS220858B1 CS788056A CS805678A CS220858B1 CS 220858 B1 CS220858 B1 CS 220858B1 CS 788056 A CS788056 A CS 788056A CS 805678 A CS805678 A CS 805678A CS 220858 B1 CS220858 B1 CS 220858B1
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- fiber
- long
- waste paper
- waste
- short
- Prior art date
Links
- 239000010893 paper waste Substances 0.000 title claims abstract description 8
- 238000000034 method Methods 0.000 title claims description 7
- 239000000835 fiber Substances 0.000 claims abstract description 38
- 238000003801 milling Methods 0.000 claims abstract description 6
- 206010061592 cardiac fibrillation Diseases 0.000 claims abstract description 5
- 230000002600 fibrillogenic effect Effects 0.000 claims abstract description 5
- 239000002699 waste material Substances 0.000 claims description 12
- 239000000945 filler Substances 0.000 claims description 8
- 238000005194 fractionation Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims 1
- 238000004537 pulping Methods 0.000 claims 1
- 238000012545 processing Methods 0.000 abstract description 6
- 238000000227 grinding Methods 0.000 description 8
- 230000001965 increasing effect Effects 0.000 description 6
- 230000008929 regeneration Effects 0.000 description 3
- 238000011069 regeneration method Methods 0.000 description 3
- 230000001771 impaired effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002562 thickening agent Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/30—Defibrating by other means
- D21B1/32—Defibrating by other means of waste paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
- D21C5/02—Working-up waste paper
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
Abstract
Description
Vynález sa týká spůsobu na papierenské zužitkovanie odpadov vzniknutých pri frakclonácii zberového papiera.BACKGROUND OF THE INVENTION The present invention relates to a method for recovering paper waste from the fractionation of waste paper.
Jedným z hlavných negativných javov při špracovaní papieroviny získanej zo zberového papiera sú jemné a najjemnejšie- -podiely vlákien. Tieto nielenže zvyšujú stupeň mletia, zhoršujú odvodňovatelnosť, ale hlavně znemožňujú správné opracovanie vlákna mletím a tým i jeho dokonalá regeneráciu, která je u vlákna získaného zo zberového papiera najdóležitejšou podmienkou před -spracovaním na papierenskom stroji,One of the main negative phenomena in the processing of pulp obtained from recovered paper is the fine and finest fiber fractions. These not only increase the degree of grinding, impair the drainability, but mainly prevent proper processing of the fiber by grinding and hence its perfect regeneration, which is the most important precondition for a fiber obtained from recovered paper before being processed on a paper machine,
Ako sa ukazuje z pozorovania doteraz získaných výsledkov, je vidieť, že jemné podiely znižujú mechanické pevnosti predovšetkým tým, že vyplňujú medzery medzi jednotlivými vláknami, čím sa zváčšuje vzdialenosť medzi vázby schopnými vláknami. V dosledku toho sa zvyšuje i stupeň mletia a zhoršuje odvodňovatelnosť. Jemné podiely vlákien svojou prítomnosťou v papierovine, protože sú velmi tuhé, zvyšujú potřebný mlecí tlak počas mletia. V súvislosti s tým narastá množstvo jemných podielov, pretože vysokým tlakom pri mletí dochádza k dreleniu dlhých vlákien. Regenerácia dlhých vlákien je v tomto· případe značné zhoršená, - - -pretože sa vyžaduje právo· velmi -šetrné, v prevážnej- miere vysoko fibrilačné mletie, ktoré prebieha pri znížených mlecích tlakoch.As can be seen from the observations of the results obtained so far, it can be seen that the fine fractions reduce the mechanical strengths, in particular by filling the gaps between the individual fibers, thereby increasing the distance between the bondable fibers. As a result, the degree of grinding is also increased and the drainage is impaired. The fine proportions of fibers by their presence in the pulp, because they are very stiff, increase the grinding pressure required during milling. Accordingly, the amount of fines is increasing as long fibers are crushed by the high grinding pressure. The regeneration of long fibers is considerably impaired in this case - - - because the right is required · very-considerate, largely highly fibrillation milling, which takes place at reduced grinding pressures.
Aby s,a umožnila čo možno najváčšie regenerácia vlákna získávaného zo zberového papiera, je velmi výhodné zavedeme frakcionácie zberového papiera.In order to enable and recover as much as possible the fiber obtained from the waste paper, it is very advantageous to introduce fractionation of the waste paper.
Frakcionáciou sa získajú - dve frakcie, dlhovláknitá a krátkovláknitá — odpad. Tento odpad pozostáva z jemných podielov vlákien a plnidiel v množstvo - až - 30 %. Oddělená dlhovláknitá frakcia sa - spracováva- samostatné fibrilačným mletím, - čím sa - značné zvýšia vázobné vlastnosti vlákie, čo - sa prejaví zvýšenými mechanickými pevnosťami papierenského listu vzniknutého z ' týchtoi vlákien.Fractionation yields - two fractions, long fiber and short fiber - waste. This waste consists of a fine proportion of fibers and fillers in an amount of - up to - 30%. The separated long-fiber fraction is - processed - by separate fibrillation milling, - thereby greatly enhancing the fiber binding properties, resulting in increased mechanical strengths of the paper sheet formed from these fibers.
Spracovanie zberového papiera -frakcionáciou však doteraz - - - nenašlo - priemyselné uplatnenie, pretože pře -spracovanie krátkovláknitej -frakcie, ktorej vzniká až 30 % -sa nenašlo -doteraz priemyslové využitie. Tým vznlkajú značné hospodářské straty sp6sobené -nutnosťou likvidácie velkého množstva odpadu, zhoršením životného prostredia -a vysokými energetickými nárokmi.However, the processing of recovered paper by fractionation has not yet - - - found industrial application, since the reprocessing of the short-fiber fraction, which produces up to 30%, has not yet been found - industrial use. This results in considerable economic losses due to the need to dispose of large amounts of waste, environmental degradation and high energy requirements.
Spracovanie tohto odpadu je predmetom vynálezu, ktorého - podstata spočívá v tom, že odseparovaný -odpad představovaný zmesou krátkých - vlákien a plnidiel sa - v ďalšom procese spracovanie vráti spát k podielu dlhých vlákien, ktoré - - před zmiešaním s odpadom boli vymleté, s výhodou - fibrilačným spůsobom, na požadované mechanic ké hodnoty, pričom množstvo vráteného odpadu z frakcionácie sa může pohybovat v rozmedzí 10—100 % z odseparovaného odpadu. Odseparovaný odpad je možné použit i - do inej látkovej suspenzie, než z ktorej bol odfrakciovaný, za účelom zníženia množstva plnidiel, alebo získania nových papierenských vlastností finálnej zmesi.The treatment of this waste is the object of the invention, which is characterized in that the separated waste represented by a mixture of short fibers and fillers is returned to the proportion of long fibers which - before being mixed with the waste, have been ground, preferably - by a fibrillation process, to the desired mechanical values, the amount of fractionation waste returned may be in the range of 10-100% of the separated waste. The separated waste can also be used - in a different material suspension than that from which it was extracted to reduce the amount of fillers or to obtain new papermaking properties of the final mixture.
Proces znázorněný na pripojenom výkrese prebieha tak, že zberový papier sa rozruší v rozvlákňovači 1, odkial je diskontinuálně, alebo kontinuálně odťahovanj do zásobnej nádrže 2, z ktorej je prúd vodolátky vedený na separáciu nečistét 3, kde sa -odstránia nerozvláknené podiely a špeťažšie a lahšie nečistoty.The process illustrated in the accompanying drawing is such that the recovered paper is disrupted in the pulper 1 from where it is discontinuously or continuously withdrawn into a storage tank 2 from which a stream of hydrofoils is guided to separate the impurities 3, where the unbranched fractions are removed. dirt.
Týchto nečistót zbavená látka je potom vedená do zásobnej nádrže 4, odkial' je čerpaná na frakcionátor 5. Tu sa odlúčia -jem.né podiely vlákien a plnidlá v množstve do 30 % celkového množstva papieroviny. - Z firakcionátora ide prúd dlhých vlákien do zásobnej nádrže 7. Z nádrže 7 je cez zahusťovač 8 a zásobnú nádrž 9 dlhovláknitá frakcia čerpaná na- mlyny 10, v ktorých sa podrobí fibrUačnému mletiu a je zhromažďovaná v zmiešacej nádrži 11. Týmto mletím sa zregenerujú vázobné schopnosti vlákien a -začší sa ich specifický povrch. - Zváčšením Specifického povrchu dochádza poČas tvorby - papierenského listu k zváčšeniu dotykových plSch jednotlivých vlákien a jemné podiely vlákien — odpad, ktoré -svojou morfológiou tu vytvárajú mrtvú nefunkčnú časť papieroviny, akýsi druh plnidlá, už nebránia vzniku vázieb tak, -ako tomu je pri- neregenerovanom vlákně a je leh možno - - v - plnom -rozsahu vrátit spáť - do suspenzie- a spoločne spracovať.The pollutant-free impurities are then fed to the storage tank 4 where it is pumped to the fractionator 5. Here, the fines and fillers are separated in an amount of up to 30% of the total stock. The long fiber stream flows into the storage tank 7. From the tank 7, through the thickener 8 and the storage tank 9, the long-fiber fraction is pumped to the mills 10 in which it is subjected to fibrous grinding and collected in the mixing tank 11. and the specific surface area of the fibers begins. - By increasing the specific surface, during the formation of the paper sheet, the plurality of individual fibers are increased and the fine fiber fractions are wastes which, by their morphology, create a dead nonfunctional portion of the pulp, a kind of filler, no longer prevent binding as they do. non-regenerated fiber and it is possible - in full - to return to sleep - into suspension - and to process together.
Krátkovláknitá - frakcia — odpad z - - frakcionátora -5 ide do nádrže - 6, - odkial - je čerpaná - --do zmešovacej nádrže -11, alebo - cez zahusťovač 12 do zmešovacej nádrže 11. · · Z nádrže - 11 je zmiešaná látka - vedená - na - spracovanie k papierenskému strojů. Množstvem přidávané j krátkovláknité j frakcie — -odpař du do -nádrže 11 je - možno regulovat ako je uvedené v nasledovnej tabulke odvodňovatelnosť, stupeň mletia, množstvo plnidlá a iné papierenské vlastnosti pri zachovaní vysokých mechanických pevností dosiahnutých správnou regeneráciou dlhovláknitého- podielu.Short fiber - fraction - waste from - - fractionator -5 goes to tank - 6, - from where - is pumped - - to the mixing tank -11, or - through the thickener 12 to the mixing tank 11. · · From the tank - 11 is mixed substance - led - on - processing to paper machines. The amount of short-fiber fraction added to the tank 11 can be controlled as shown in the following table: drainage, grinding degree, filler amount and other papermaking properties while maintaining the high mechanical strengths achieved by proper regeneration of the long-fiber fraction.
Papierovina vyrobená podlá popísaného spósobu je vhodná pře použitie na výroby kvalitných baliacich papierov, kartónov a lepeniek -s vysokými nárokmi na pevnost. Súčasne -sa znižujú straty vlákien, zlepšuje sa životné prostredie, vyšší sa využívá -dřevná hmota a šetří sa čerstvou dřevnou hmotou a znižuje sa zanáška čerstvých plnidiel.The pulp made according to the described process is suitable for use in the production of high-quality wrapping papers, cartons and boards with high strength requirements. At the same time, it reduces fiber loss, improves the environment, uses wood material more and conserves fresh wood and reduces the build-up of fresh fillers.
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Claims (1)
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS788056A CS220858B1 (en) | 1978-12-06 | 1978-12-06 | Method of treating the waste paper |
| NL7904845A NL7904845A (en) | 1978-12-06 | 1979-06-21 | METHOD FOR TREATING WASTE PAPER IN THE PAPER INDUSTRY. |
| DE19792926185 DE2926185A1 (en) | 1978-12-06 | 1979-06-28 | METHOD FOR RECYCLING WASTE RESULTING FROM THE FRACTIONATION OF WASTE PAPER |
| IT2396479A IT1125398B (en) | 1978-12-06 | 1979-06-28 | METHOD FOR THE USE OF WASTE WHICH ORIGINATE FROM THE FRACTIONATION OF WASTE PAPER IN THE MANUFACTURE OF PAPER |
| DD79214822A DD145293A1 (en) | 1978-12-06 | 1979-08-06 | METHOD OF REPRODUCING PAPER |
| GB7927549A GB2037340A (en) | 1978-12-06 | 1979-08-07 | Utilizing waste paper |
| ES483485A ES483485A1 (en) | 1978-12-06 | 1979-08-20 | METHOD OF USING THE WASTE THAT IS ORIGINATED BY FRACTIONATION OF THE RECOVERY PAPER |
| FR7925509A FR2443528A1 (en) | 1978-12-06 | 1979-10-12 | METHOD OF USING WASTE FROM THE FRACTIONATION OF PAPER WASTE IN THE MANUFACTURE OF PAPER |
| JP15645479A JPS5580588A (en) | 1978-12-06 | 1979-12-04 | Utilization of waste generated by used paper milling in paper making industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS788056A CS220858B1 (en) | 1978-12-06 | 1978-12-06 | Method of treating the waste paper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CS220858B1 true CS220858B1 (en) | 1983-04-29 |
Family
ID=5430642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS788056A CS220858B1 (en) | 1978-12-06 | 1978-12-06 | Method of treating the waste paper |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS5580588A (en) |
| CS (1) | CS220858B1 (en) |
| DD (1) | DD145293A1 (en) |
| DE (1) | DE2926185A1 (en) |
| ES (1) | ES483485A1 (en) |
| FR (1) | FR2443528A1 (en) |
| GB (1) | GB2037340A (en) |
| IT (1) | IT1125398B (en) |
| NL (1) | NL7904845A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3536337C1 (en) * | 1985-10-11 | 1987-05-27 | Voith Gmbh J M | Process and device for stock preparation for ash-containing raw material in waste paper processing |
| EP0582042A1 (en) * | 1992-07-23 | 1994-02-09 | J.M. Voith GmbH | Process for modifying the properties of deinked waste paper pulps, especially the fiber classification and installation for carrying out the process |
| DE102020102731A1 (en) * | 2020-02-04 | 2021-08-05 | Voith Patent Gmbh | Process for the production of a liner paper web |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2331455A (en) * | 1937-06-09 | 1943-10-12 | Cowles Co | Process for the preparation of paper stock |
| SE7613057L (en) * | 1976-03-17 | 1977-09-18 | Black Clawson Co | SETS AND APPARATUS FOR RECYCLING PAPER FIBERS FROM WASTE MATERIAL CONTAINING PAPER |
| DE2759113C2 (en) * | 1977-12-30 | 1979-05-17 | J.M. Voith Gmbh, 7920 Heidenheim | Process and system for processing waste paper |
| DE2836186C2 (en) * | 1978-08-18 | 1980-02-07 | J.M. Voith Gmbh, 7920 Heidenheim | Process and device for ash removal from pulp suspensions in waste paper processing |
| US4676910A (en) * | 1986-08-11 | 1987-06-30 | Nalco Chemical Company | Means of controlling precipitation of Na2 SO4 from solutions of NaHSO3 oxygen scavengers |
-
1978
- 1978-12-06 CS CS788056A patent/CS220858B1/en unknown
-
1979
- 1979-06-21 NL NL7904845A patent/NL7904845A/en not_active Application Discontinuation
- 1979-06-28 IT IT2396479A patent/IT1125398B/en active
- 1979-06-28 DE DE19792926185 patent/DE2926185A1/en not_active Withdrawn
- 1979-08-06 DD DD79214822A patent/DD145293A1/en unknown
- 1979-08-07 GB GB7927549A patent/GB2037340A/en not_active Withdrawn
- 1979-08-20 ES ES483485A patent/ES483485A1/en not_active Expired
- 1979-10-12 FR FR7925509A patent/FR2443528A1/en not_active Withdrawn
- 1979-12-04 JP JP15645479A patent/JPS5580588A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| IT1125398B (en) | 1986-05-14 |
| ES483485A1 (en) | 1980-03-01 |
| FR2443528A1 (en) | 1980-07-04 |
| DE2926185A1 (en) | 1980-06-26 |
| DD145293A1 (en) | 1980-12-03 |
| JPS5580588A (en) | 1980-06-17 |
| IT7923964A0 (en) | 1979-06-28 |
| GB2037340A (en) | 1980-07-09 |
| NL7904845A (en) | 1980-06-10 |
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