DE2441811C2 - Process for processing plastic waste, in particular film waste - Google Patents

Process for processing plastic waste, in particular film waste

Info

Publication number
DE2441811C2
DE2441811C2 DE2441811A DE2441811A DE2441811C2 DE 2441811 C2 DE2441811 C2 DE 2441811C2 DE 2441811 A DE2441811 A DE 2441811A DE 2441811 A DE2441811 A DE 2441811A DE 2441811 C2 DE2441811 C2 DE 2441811C2
Authority
DE
Germany
Prior art keywords
waste
plastic waste
particular film
plastic
processing plastic
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
DE2441811A
Other languages
German (de)
Other versions
DE2441811A1 (en
Inventor
Erich Ing.(grad.) 6520 Worms Beck
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE2441811A priority Critical patent/DE2441811C2/en
Publication of DE2441811A1 publication Critical patent/DE2441811A1/en
Application granted granted Critical
Publication of DE2441811C2 publication Critical patent/DE2441811C2/en
Expired legal-status Critical Current

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
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B9/00—General arrangement of separating plant, e.g. flow sheets
    • B03B9/06—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse
    • B03B9/061—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse the refuse being industrial
    • 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
    • B29B2017/0234—Mechanical separating techniques; devices therefor using gravity, e.g. separating by weight differences in a wind sifter
    • 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
    • B29B2017/0286—Cleaning means used for separation
    • B29B2017/0289—Washing the materials in liquids
    • 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
    • B29K2313/00—Use of textile products or fabrics as reinforcement
    • 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
    • B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
    • 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
    • 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
    • B29K2711/14—Wood, e.g. woodboard or fibreboard
    • 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
    • B29L2007/00—Flat articles, e.g. films or sheets
    • B29L2007/008—Wide strips, e.g. films, webs
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Processing Of Solid Wastes (AREA)

Description

Die Erfindung betrifft ein Verfahren nach dem Oberbegriff des Anspruchs. Solche Verfahren sind beispielsweise aus der DE-AS 16 79 834 oder der DE-PS 05 360 bekannt Dabei können saubere bzw. verschmutzte Kunststoffabfälle verarbeitet werden.The invention relates to a method according to the preamble of the claim. Such procedures are for example from DE-AS 16 79 834 or DE-PS 05 360 known Here, clean or soiled plastic waste can be processed.

Die zu verarbeitenden Kunststoffabfälle enthalten jedoch manchmal Fremdstoffe wie Metallteile, Steine, Holzteile, Papier, Textilien und Fasern. Es ist bekannt, daß derart verunreinigte Abfälle gemahlen, über Schneckenpressen aufgeschmolzen, durch Siebfilter ausgepreßt und dann granuliert werden. Eine andere Verarbeitungsart besteht darin, daß diese Abfälle lediglich aus der Schmelze ausfiltriert werden. In beiden Fällen befinden sich die Fremdstoffe im Kunststoff und verursachen an den Filtersieben und bei der weiteren Verarbeitung im Extruder einen erheblichen Verschleiß. Aufgabe der vorliegenden Erfindung ist es, eine Trennung von Papier, Textilien, Holzteilen und Fasern vor der Weiterverarbeitung des aufbereiteten Kunststoffs zu erreichen, und zwar auf einfache undHowever, the plastic waste to be processed sometimes contains foreign substances such as metal parts, stones, Wooden parts, paper, textiles and fibers. It is known that such contaminated waste is ground over Screw presses are melted, pressed through sieve filters and then granulated. Another The type of processing is that this waste is simply filtered out of the melt. In both Cases are the foreign substances in the plastic and cause on the filter sieves and the other Processing in the extruder causes considerable wear. The object of the present invention is to provide a Separation of paper, textiles, wooden parts and fibers before further processing of the recycled plastic to achieve, in a simple and

ίο kostensparende Weise. Dabei wird vorausgesetzt, daß Fremdstoffe aus Metall und Stein auf bekannte Weise durch Trennung von schweren von leichten Teilen ausgeschieden sind. Ein solches Schwerkraft-Windsichtverfahren ist für die übrigen der genannten Fremdstoffe nicht möglich, da die Massen bzw. Endfallgeschwindigkeiten dieser Fremdstoffe etwa gleich sind denen der anfallenden Kunststoffabfälle.ίο cost-saving way. It is assumed that Foreign matter from metal and stone in a known way by separating heavy from light parts are eliminated. Such a gravity air classification process is not possible for the other of the named foreign substances, because the masses or final fall velocities these foreign substances are roughly the same as those of the resulting plastic waste.

Diese Aufgabe wird gelöst durch die Maßnahmen nach dem Kennzeichen des Anspruchs. Die Kompaktierung hat zur Folge, daß das Schüttgewicht (die Endfallgeschwindigkeit) des Kunststoffanteils erheblich zunimmt, wogegen die Endfallgeschwindigkeit der genannten Fremdstoffe entweder gleichbleibt oder — was wahrscheinlicher ist — durch den Zerkleinerungs-Vorgang geringer wird. Die dabei erhaltene Produktmischung wird bei der Windsichtung getrennt, wobei auf der Grobgutseite das von dem größten Teil der Fremdstoffe befreite Kunststoffmaterial und auf der Feingutseite die Papier-, Textil-, Holz- und Faseranteile austreten.This object is achieved by the measures according to the characterizing part of the claim. The compaction has the consequence that the bulk weight (the final fall speed) of the plastic portion is considerable increases, whereas the final speed of fall of the named foreign matter either remains the same or - which is more likely - is reduced by the crushing process. The product mixture obtained in this way is separated during the air sifting, with the coarse material side being separated from the largest part of the Foreign matter freed plastic material and on the fine material side the paper, textile, wood and fiber parts step out.

Claims (1)

Patentanspruch:Claim: Verfahren zum Aufarbeiten von Kunststoffabfällen, insbesondere Folienabfällen, bei welchem die Kunststoffabfälle zerkleinert, ggf. dabei gewaschen, und ferner verdichtet werden, dadurch gekennzeichnet, da3 zum Zwecke der Trennung von Fremdstoffen wie Papier, Textilien, Holzschnitzeln und Fasern von den Kunststoffabfällen die Verdichtung durch eine thermische Kontaktierung erfolgt, wodurch die Masse bzw. die Endabfallgeschwindigkeit der Kunststoffteilchen gegnüber derjenigen der Fremdstoffteile erhöht wird, und daß anschließend beide Sorten durch Windsichten getrennt werden.Method for processing plastic waste, in particular film waste, in which the Plastic waste is crushed, possibly washed, and furthermore compacted, characterized in that da3 for the purpose of separating foreign matter such as paper, textiles, wood chips and fibers from the plastic waste are compacted by thermal contact takes place, whereby the mass or the final rate of fall of the plastic particles compared to that the foreign matter is increased, and that then both types by air sifting be separated.
DE2441811A 1974-08-31 1974-08-31 Process for processing plastic waste, in particular film waste Expired DE2441811C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2441811A DE2441811C2 (en) 1974-08-31 1974-08-31 Process for processing plastic waste, in particular film waste

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2441811A DE2441811C2 (en) 1974-08-31 1974-08-31 Process for processing plastic waste, in particular film waste

Publications (2)

Publication Number Publication Date
DE2441811A1 DE2441811A1 (en) 1976-03-18
DE2441811C2 true DE2441811C2 (en) 1982-12-09

Family

ID=5924594

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2441811A Expired DE2441811C2 (en) 1974-08-31 1974-08-31 Process for processing plastic waste, in particular film waste

Country Status (1)

Country Link
DE (1) DE2441811C2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4420211C1 (en) * 1994-06-09 1995-10-26 Kuhne Anlagenbau Gmbh Preparation of granules from contaminated mixed polymer waste

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4204906A (en) * 1977-08-25 1980-05-27 Hsin Liu Method of separating fusible plastics from solid waste
US4297322A (en) * 1977-08-25 1981-10-27 Hsin Liu Equipment for treating and resource recovery from solid waste
NL8000791A (en) * 1980-02-08 1981-09-01 Esmil Bv METHOD AND APPARATUS FOR SEPARATING PAPER AND PLASTIC FOIL IN A SIFTER.
DE4422361C2 (en) 1994-06-27 1999-01-14 Florian Dipl Ing Lezius Process for the sedimentative separation of particles and / or liquid droplets of different compressible substances, the densities of which are similar under normal conditions and which are dissolved, suspended or dusted in suspensions, emulsions, aerosols or suspended dusts
CN111136832A (en) * 2019-12-04 2020-05-12 中国纺织科学研究院有限公司 Method and system for separating waste dust-removing filter bags containing PPS and PTFE

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2005360C3 (en) * 1970-02-06 1974-01-31 Erich 6520 Worms Beck Process and system for processing used thermoplastics

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4420211C1 (en) * 1994-06-09 1995-10-26 Kuhne Anlagenbau Gmbh Preparation of granules from contaminated mixed polymer waste

Also Published As

Publication number Publication date
DE2441811A1 (en) 1976-03-18

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