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WO2003010371A2 - Procede et dispositif de classement de matieres revalorisables comprenant au moins une fraction fibreuse - Google Patents

Procede et dispositif de classement de matieres revalorisables comprenant au moins une fraction fibreuse Download PDF

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Publication number
WO2003010371A2
WO2003010371A2 PCT/EP2002/008285 EP0208285W WO03010371A2 WO 2003010371 A2 WO2003010371 A2 WO 2003010371A2 EP 0208285 W EP0208285 W EP 0208285W WO 03010371 A2 WO03010371 A2 WO 03010371A2
Authority
WO
WIPO (PCT)
Prior art keywords
fraction
sieve
rotor
valuable
classifying
Prior art date
Application number
PCT/EP2002/008285
Other languages
German (de)
English (en)
Other versions
WO2003010371A3 (fr
Inventor
Frank Scholz
Original Assignee
Recover System Recycling Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Recover System Recycling Gmbh filed Critical Recover System Recycling Gmbh
Priority to AU2002325366A priority Critical patent/AU2002325366A1/en
Publication of WO2003010371A2 publication Critical patent/WO2003010371A2/fr
Publication of WO2003010371A3 publication Critical patent/WO2003010371A3/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/02—Separating plastics from other materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B4/00—Separating solids from solids by subjecting their mixture to gas currents
    • B07B4/02—Separating solids from solids by subjecting their mixture to gas currents while the mixtures fall
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B4/00—Separating solids from solids by subjecting their mixture to gas currents
    • B07B4/08—Separating solids from solids by subjecting their mixture to gas currents while the mixtures are supported by sieves, screens, or like mechanical elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
    • B07B7/06—Selective separation of solid materials carried by, or dispersed in, gas currents by impingement against sieves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
    • B07B7/12—Selective separation of solid materials carried by, or dispersed in, gas currents with pulsating air currents
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G11/00—Disintegrating fibre-containing articles to obtain fibres for re-use
    • 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
    • D21B1/06—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by dry methods
    • D21B1/08—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by dry methods the raw material being waste paper; the raw material being rags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/02—Separating plastics from other materials
    • B29B2017/0213—Specific separating techniques
    • B29B2017/0217—Mechanical separating techniques; devices therefor
    • B29B2017/0224—Screens, sieves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2001/00—Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/10—Polymers of propylene
    • B29K2023/12—PP, i.e. polypropylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2711/00—Use of natural products or their composites, not provided for in groups B29K2601/00 - B29K2709/00, for preformed parts, e.g. for inserts
    • B29K2711/12—Paper, e.g. cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2007/00—Flat articles, e.g. films or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/48—Wearing apparel
    • B29L2031/4871—Underwear
    • B29L2031/4878—Diapers, napkins
    • 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
    • Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
    • 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
    • Y02W30/62—Plastics recycling; Rubber recycling
    • 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
    • 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
    • Y02W30/66—Disintegrating fibre-containing textile articles to obtain fibres for re-use

Definitions

  • the invention relates to a method and a device for classifying recyclable material consisting of at least one viscoplastic fraction, in particular plastic film residues, and a fiber fraction, in particular cellulose fibers, according to claim 1 and the independent claim 10.
  • Disposable diapers, incontinence articles and sanitary napkins, various plastic films and cellulose fibers are used to achieve the desired product properties.
  • the required tensile strength and tightness to the outside is achieved by plastic films made of polyethylene and / or polypropylene (PE or PP).
  • the comfort is adjusted by other, liquid-permeable foils.
  • Cellulose fibers can be provided between these foils, which serve to absorb liquid.
  • the device used to carry out the method consists of a channel which rises in the conveying direction. The bottom of this channel is formed by a sieve. There is a negative pressure on the side of the screen facing away from the inside of the channel.
  • Transversely to the longitudinal direction of the channel several rollers with driver pins are arranged one behind the other in the conveying direction. The position of the rollers and the length of the driver pins is selected such that a gap remains between the driver pins and the screen when the rollers are set in rotation.
  • the recyclable material consisting of plastic film residues and cellulose fibers
  • the recyclable material is introduced into the channel at the lower end thereof.
  • the rotating rollers use their driver pins to grasp the valuable material cut into strips and pull it through the gap between the driver pins and the sieve. Due to the friction and shear between the plastic film residues and the cellulose fibers, the plastic film residues and the cellulose fibers are separated or separated from one another. The cellulose fibers separated from the plastic film residues are sucked through the sieve by the negative pressure which prevails on the side of the sieve facing away from the channel. This process is repeated for each of the several rollers arranged one behind the other.
  • this classifying device is loaded with a valuable material consisting of 90% cellulose and 10% PE and PP, whereby significantly less than half of the total cellulose present can be recovered.
  • the majority of the existing pulp remains with the plastic fraction and cannot be recovered. Because of the remaining high proportion of cellulose in the plastic fraction which arises at the end of the classification process according to the prior art, this plastic can no longer be used.
  • This plastic fraction consists of approximately 70% cellulose and 30% plastic film residues.
  • the invention has for its object to provide a method and an apparatus which improves the classification of valuable materials with at least one tough elastic fraction and a fiber fraction in such a way that the yield of reusable valuable materials is increased.
  • This object is achieved according to the invention by a method for classifying recyclable material consisting of at least one viscoplastic fraction, in particular plastic film residues, and a fiber fraction, in particular cellulose fibers, in which the recyclable material is whirled up in the direction of a sieve, and the fiber fraction () is sucked through the sieve and the tough elastic fraction is withdrawn in a direction substantially parallel to the sieve.
  • the plastic fraction and the pulp fraction are whirled against the sieve at different speeds and intensities because of their different properties, so that the pulp fraction is almost without Impurities can be drawn off through the sieve. Since the valuable material is only whirled up, the cellulose fibers are not or only insignificantly damaged, so that there is no loss of quality in the cellulose fibers.
  • the effectiveness of the method according to the invention can be further increased if the method is carried out several times in succession, and / or before the classification, the material is separated into a fiber fraction and a tough elastic fraction.
  • a further improvement of the method according to the invention is obtained if the valuable material is shredded into strips of more than 50 mm in length before being classified or separated, in particular in a twin-shaft shredder.
  • the material is whirled up so gently that the fiber fraction is only insignificantly damaged thereby and in particular the mean fiber length of the fiber fraction remains almost unchanged.
  • the above-mentioned object is also achieved according to the invention with a device for classifying recyclable material consisting of at least one viscoplastic fraction, in particular plastic film residues, and a fiber fraction, in particular cellulose fibers, with a housing, the interior of the housing being changed from a sieve into one first room and a second room is subdivided, with a device arranged in the first room for whirling up the valuable substance, the pressure in the second room being lower than in the first room.
  • a device for classifying recyclable material consisting of at least one viscoplastic fraction, in particular plastic film residues, and a fiber fraction, in particular cellulose fibers
  • first openings and a third opening for removing the residual material are provided in the first space.
  • a second opening for drawing off the fiber fraction is present in the second space.
  • the device for whirling up valuable material comprises a rotor with a rotor shaft and at least one row of rotor blades, so that whirling takes place in a simple and effective manner, the at least one row of rotor blades consisting of a plurality of rotor blades distributed over the circumference of the rotor shaft.
  • the sieve is arranged coaxially with a longitudinal axis of the rotor shaft and encloses the rotor. It can be advantageous if the rotor axis is arranged eccentrically to the screen. The classification is further improved by the different distances between the rotor and the sieve given in this arrangement.
  • a cleaning device which places the sieve on cleans its side facing the first space, for example by means of a scraper, preferably in the direction of the third opening.
  • FIG. 1 shows an exemplary embodiment of a device according to the invention for classifying valuable materials
  • Figure 2 is a flow diagram of a plant for the complete recycling of valuable materials with a tough elastic fraction and a fiber fraction and
  • FIG. 3 shows a material flow diagram of the plant according to FIG. 2.
  • a device according to the invention for classifying recyclable material consisting of at least one viscoplastic fraction and a fiber fraction is shown schematically in longitudinal and cross-section.
  • a screen 103 is also arranged in a housing 101.
  • the screen 103 extends over the entire length of the housing 101 and encloses a rotor 105.
  • the rotor 105 consists of a rotor shaft 107 and a plurality of rows of rotor blades 109 arranged on the rotor shaft 107.
  • the rotor shaft 107 can also be arranged eccentrically to the screen 103.
  • the screen 103 has a large number of holes (not shown) over its entire surface.
  • the diameter of the rotor blade rows 109 are dimensioned such that there is a sufficiently large distance between the rotor blade rows 109 and the sieve 103 in order not to damage the to avoid the pulp fibers shown by breaking or the like as far as possible.
  • the rotor shaft 107 is rotatably supported in the housing 101.
  • a first opening 107 is provided in a first end wall 117 of the housing 101, through which the valuable material to be classified (not shown) can be introduced into the inside of the sieve 103.
  • the rotor shaft 107 which is driven by a drive (not shown), detects the valuable material to be classified with its first rotor blade row 109 and distributes it in the first space 120 delimited by sieve 103, first end wall 115 and second end wall 119.
  • the valuable material is whirled up and drawn in in the radial direction on a longitudinal axis 121 of the rotor shaft 107 in the direction of the sieve 103.
  • the pulp fibers (not shown) located in the second space 125 are drawn off through a second opening 127.
  • the plastic film residues, not shown, and parts of the fiber fraction are conveyed by the rotor blade rows 109 in the direction of the second end face 119 and finally drawn off through a third opening 129.
  • the cylindrical shape of the screen 103 can be clearly seen in the cross section along the line AA in FIG. 1. It can also be clearly seen that the distance 113 between Blade 131 of blade row 109 is so large that there is no damage to the fiber fraction in the gap formed between blades 131 and sieve 103. Furthermore, it can be seen particularly clearly in this illustration that the rotor blades 131 of one rotor blade row are arranged offset to the rotor blades 131 of the neighboring rotor blade row 109. On the screen 103, which has a cylindrical shape in the exemplary embodiment according to FIG. 1, webs or other obstacles, not shown, which brake the movement of the fractions can be provided.
  • the blades 131 of the blade rows 109 are designed in such a way that they do not cut the fiber fraction under any circumstances and, if possible, do not break it either.
  • the holes in the sieve 103 are rounded, so that no damage occurs to the fiber fraction even when it passes through the sieve 103.
  • the speed of the rotor shaft 107 is chosen so low that the forces acting on the fiber fraction do not cause damage to the fiber fraction by breaking or the like.
  • a plurality of devices according to the invention can be connected in series, the residue removed from the previous device consisting of a viscoplastic fraction and residues of a fiber fraction being introduced into the first opening 117 of the subsequent device.
  • the rotational speed of the rotor shaft 107, the distance 113 between the rotor blade rows 109 and the sieve 103 and the design and number of the rotor blades of the rotor blade rows 109 can differ from one another in the case of a plurality of devices arranged one behind the other, since the proportion of the fiber fraction decreases from one device according to the invention to the next device according to the invention.
  • the speed can be compared to The previous one must be significantly increased in order to ensure that as far as possible no fiber fraction with the viscoplastic fraction is drawn off through the third opening 129.
  • the fiber fraction drawn off in the last device is of very poor quality, but this is economically negligible because of its small amount.
  • the viscous-elastic fraction that has been drawn off is present almost without impurities and can therefore be recycled in a particularly simple manner.
  • a scraper 133 can be provided, which is mounted in the first space 120 concentrically with the rotor shaft 107.
  • the scraper 133 rotates slowly relative to the sieve 103 and removes fiber residues from the openings of the sieve 103 (not shown).
  • the scraper 133 can also exert a conveying movement in the direction of the third opening 129 on the fiber fraction or the plastic fraction.
  • FIG. 2 shows a flow diagram of a system for recycling valuable materials consisting of a tough elastic fraction and a fiber fraction, in which several devices according to the invention according to the exemplary embodiment of FIG. 1 or other embodiments are integrated. Because of the detailed legend, this flowchart is only briefly described.
  • the valuable materials to be separated can consist, for example, of a composite of PE and PP mixed with cellulose flakes.
  • the cellulose flakes can make up 50% by weight or more.
  • the method according to the invention is not restricted to these areas, but it can be used with great success in the named area.
  • the valuable substance is comminuted, for example, by a twin-shaft reducer.
  • the comminuted recyclable material is then conveyed via a trough chain conveyor 2 into a bunker 3. From the bunker 3 the recyclable material 6 is conveyed. This can advantageously be done by intermeshing rollers.
  • the valuable substance then arrives at a first device 8 for classification according to the invention.
  • Classification creates two material flows.
  • the first material flow consists of cellulose flakes of first quality, which are then passed through a filter 37.
  • the second material flow which arises during classification in the device 8 according to the invention, consists of plastic film residues and unclassified cellulose fibers and is the so-called residual material.
  • the residual material is fed by a pneumatic conveyor 9 into a second classifying device 10. This in turn creates two material flows, one consisting of first-class pulp and is conveyed to the filter 37 by a pneumatic conveyor 33.
  • the residual material drawn off from the first space 120 of the sieve 103 (see FIG. 1) is placed in a cyclone 13 and separated there. Secondary pulp flakes are obtained.
  • a third device 16 for classifying, the second material flow 14 which emerges from the cyclone 13 is classified again. Third-quality cellulose flakes can be obtained.
  • This classifier 16 exerts relatively high forces on the fibers. In addition, the pressure difference between the first space 120 and the second space 125 is relatively large. This leads to partial damage to the fibers and the proportion of plastic in the separated fiber fraction is also comparatively high.
  • the second residue from the device 16 is conveyed via a pneumatic conveyor 17 to a second cyclone 19.
  • the aim of this separation is above all to get the viscoplastic fraction free of cellulose fibers, since this complicates the recycling of the viscoplastic fraction, which typically consists of PE and / or PP.
  • FIG. 3 the material flows are shown quantified as they pass through the plant described with reference to FIG. 2. From this illustration it is clear that the system works very effectively and the device according to the invention classifies the recycled materials in a fiber fraction of very high quality and a plastic fraction very effectively.
  • a fiber fraction is obtained in a first classification process, which consists of 98% cellulose fibers and contains 2% impurities consisting of PE and PP.
  • the remaining 750 kg of residual material now consists of 61% cellulose and 39% PE and PP.
  • a second classification see 10 in FIG. 2
  • a further 200 kg of cellulose are obtained, the cellulose being contaminated with 2% PE and PP.
  • This total of 450 kg of pulp has been referred to in FIG. 2 as first quality pulp.
  • the classification takes place in a device according to the invention (see 16 in FIG. 2).
  • the devices (8, 10 and 16) according to the invention produce very high quality cellulose flakes which can be fed back into a production process without further treatment.
  • the third-quality pulp flakes make up only 175 kg, corresponding to 25% of the total amount of pulp.
  • the plastic fraction obtained also has a high degree of purity of 90%, so that it can be reused.
  • the method according to the invention like the devices according to the invention, thus makes a significant contribution to the reuse of valuable substances without loss of quality.
  • the classifying device according to the prior art is able to recover significantly less than half of the total cellulose present from a valuable material consisting of 90% cellulose and 10% PE and PP.
  • the majority of the existing pulp remains with the plastic fraction and cannot be recovered. Because of the remaining high proportion of cellulose in the plastic fraction, which arises at the end of the classification process according to the prior art, this plastic can no longer be used.
  • the device according to the invention is able to further separate and classify this contaminated plastic fraction with the above-mentioned. Results. From this comparison it becomes clear what increases in the yield, the recovery of cellulose fibers and almost pure plastic by the device according to the invention, the method according to the invention and the plant according to FIG. 2 are possible.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

L'invention concerne un procédé et un dispositif permettant de classer des matières revalorisables comprenant une fraction viscoplastique, en particulier des films en PE ou en PP, ainsi qu'une fraction fibreuse, en particulier des fibres cellulosiques, ainsi que de séparer de manière quasi-parfaite les fibres cellulosiques des matières plastiques.
PCT/EP2002/008285 2001-07-25 2002-07-25 Procede et dispositif de classement de matieres revalorisables comprenant au moins une fraction fibreuse WO2003010371A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002325366A AU2002325366A1 (en) 2001-07-25 2002-07-25 Method and device for classifying valuable material comprising at least one fibrous fraction

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2001135398 DE10135398A1 (de) 2001-07-25 2001-07-25 Verfahren und Vorrichtung zum Klassieren von Wertstoff mit mindestens einer Faserfraktion
DE10135398.7 2001-07-25

Publications (2)

Publication Number Publication Date
WO2003010371A2 true WO2003010371A2 (fr) 2003-02-06
WO2003010371A3 WO2003010371A3 (fr) 2003-11-27

Family

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PCT/EP2002/008285 WO2003010371A2 (fr) 2001-07-25 2002-07-25 Procede et dispositif de classement de matieres revalorisables comprenant au moins une fraction fibreuse

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Country Link
AU (1) AU2002325366A1 (fr)
DE (1) DE10135398A1 (fr)
WO (1) WO2003010371A2 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102199812A (zh) * 2011-03-25 2011-09-28 山西临猗雪云棉机有限公司 废棉、毛、麻的机下杂质分离机构
CN106222808A (zh) * 2016-08-19 2016-12-14 安徽元琛环保科技股份有限公司 可回收纤维自动筛选机
EP3248694A4 (fr) * 2015-01-22 2018-05-23 Daiki Co. Ltd. Appareil de séparation et procédé pour fabriquer un matériau d'absorption d'eau
EP3661713B1 (fr) 2017-08-02 2021-01-27 Plastigram Industries A.S. Procédé de traitement des déchets créés par recyclage de papier à partir de cartons de boisson usagés et ligne de traitement correspondante
CN115921298A (zh) * 2022-12-27 2023-04-07 湖南中科电气股份有限公司 一种锂电池石墨负极材料整形机

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3587858A (en) * 1969-11-04 1971-06-28 Lynn M Christianson Fiber handling and cleaning device
US3909397A (en) * 1973-12-26 1975-09-30 Kimberly Clark Co Fiber recovery system and method of recovery
US4305507A (en) * 1980-08-15 1981-12-15 Magna-Graphics Corporation Disposable diaper reclaiming apparatus
DE3214294C1 (de) * 1982-04-19 1984-01-05 Bert 5470 Andernach Steffens Verfahren zur Rueckgewinnung von Zellstofflocken und flaechigen Umhuellungen aus Zellstoff-Hygieneartikeln
DE3322578C2 (de) * 1983-06-14 1986-01-16 Sulzer-Escher Wyss GmbH, 7980 Ravensburg Sortiervorrichtung
EP0180696B1 (fr) * 1984-11-06 1988-03-30 Mo Och Domsjö Aktiebolag Dispositif pour la séparation de déchets
DE4307789C3 (de) * 1993-03-12 2000-02-24 Buehler Ag Kontroll-Siebvorrichtung sowie Verwendung der Vorrichtung
FR2777576B1 (fr) * 1998-04-16 2000-06-02 Laroche Sa Procede et installation pour la realisation de feutres a partir de fibres nobles ou recyclees et produits obtenus par la mise en oeuvre d'un tel procede

Cited By (6)

* Cited by examiner, † Cited by third party
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CN102199812A (zh) * 2011-03-25 2011-09-28 山西临猗雪云棉机有限公司 废棉、毛、麻的机下杂质分离机构
EP3248694A4 (fr) * 2015-01-22 2018-05-23 Daiki Co. Ltd. Appareil de séparation et procédé pour fabriquer un matériau d'absorption d'eau
CN106222808A (zh) * 2016-08-19 2016-12-14 安徽元琛环保科技股份有限公司 可回收纤维自动筛选机
EP3661713B1 (fr) 2017-08-02 2021-01-27 Plastigram Industries A.S. Procédé de traitement des déchets créés par recyclage de papier à partir de cartons de boisson usagés et ligne de traitement correspondante
CN115921298A (zh) * 2022-12-27 2023-04-07 湖南中科电气股份有限公司 一种锂电池石墨负极材料整形机
CN115921298B (zh) * 2022-12-27 2023-07-28 湖南中科电气股份有限公司 一种锂电池石墨负极材料整形机

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