WO2005002816A1 - Procede et dispositif pour plastifier des matieres thermoplastiques - Google Patents

Procede et dispositif pour plastifier des matieres thermoplastiques Download PDF

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Publication number
WO2005002816A1
WO2005002816A1 PCT/EP2004/006873 EP2004006873W WO2005002816A1 WO 2005002816 A1 WO2005002816 A1 WO 2005002816A1 EP 2004006873 W EP2004006873 W EP 2004006873W WO 2005002816 A1 WO2005002816 A1 WO 2005002816A1
Authority
WO
WIPO (PCT)
Prior art keywords
gap
plasticizing
plastic
outer cylinder
rotation
Prior art date
Application number
PCT/EP2004/006873
Other languages
German (de)
English (en)
Inventor
Johannes Wortberg
Dirk Kaczmarek
Original Assignee
Coperion Werner & Pfleiderer Gmbh & Co. Kg
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 Coperion Werner & Pfleiderer Gmbh & Co. Kg filed Critical Coperion Werner & Pfleiderer Gmbh & Co. Kg
Priority to DE200411000980 priority Critical patent/DE112004000980B4/de
Publication of WO2005002816A1 publication Critical patent/WO2005002816A1/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
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/50—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with rotary casing
    • 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
    • B29B13/00—Conditioning or physical treatment of the material to be shaped
    • B29B13/02—Conditioning or physical treatment of the material to be shaped by heating
    • B29B13/022—Melting the material to be shaped
    • 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
    • B29B17/0026—Recovery of plastics or other constituents of waste material containing plastics by agglomeration or compacting
    • B29B17/0036—Recovery of plastics or other constituents of waste material containing plastics by agglomeration or compacting of large particles, e.g. beads, granules, pellets, flakes, slices
    • 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
    • B29B7/00—Mixing; Kneading
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/82—Heating or cooling
    • B29B7/823—Temperature control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/05—Filamentary, e.g. strands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/361—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die with the barrel or with a part thereof rotating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/79—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling of preformed parts or layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
    • B29C48/83—Heating or cooling the cylinders
    • B29C48/832—Heating
    • 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
    • B29K2101/00—Use of unspecified macromolecular compounds as moulding material
    • B29K2101/12—Thermoplastic materials
    • 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
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or 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
    • B29K2709/00—Use of inorganic materials not provided for in groups B29K2703/00 - B29K2707/00, for preformed parts, e.g. for inserts
    • B29K2709/08—Glass
    • 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

Definitions

  • the invention relates to a method and a device for plasticizing thermoplastic materials, in particular recycled material containing fibers.
  • Such fibers used as reinforcing material are regularly glass fibers.
  • the invention is therefore based on the object of providing a method and a device by means of which recycled material containing fibers can be melted in a simple manner, the fibers being intended to remain undestroyed as far as possible.
  • the essence of the invention is that the recyclate is melted in the plasticizing gap between the gap walls with the supply of external heat.
  • the plasticizing gap narrows on the way from the supply of the plastic to be melted to the outlet of the melted plastic.
  • the plasticizing gap forming the device according to the invention between two rotationally drivable cylinders, namely an inner cylinder and an outer cylinder, the melting taking place in a path of less than one revolution of the cylinders. There is practically no conversion of mechanical energy into heat, so that fibers contained in the plastic are not mechanically stressed and are therefore not destroyed.
  • FIG. 1 is a general perspective view of a device according to the invention
  • FIG. 2 shows a vertical section through a first exemplary embodiment of the invention along the section line II-II in FIG. 3,
  • FIG. 3 shows a horizontal section through the first exemplary embodiment of the invention along the section line III-III in FIG. 2,
  • Fig. 4 shows a detail IV of Fig. 3 on an enlarged scale compared to Fig. 3 and
  • the device for plasticizing thermoplastic materials shown in the drawing has a housing 1 which has a base 3 connected to the outer housing wall 2.
  • the housing 1 is closed on its upper side by means of a housing cover 4.
  • An inner cylinder 5 is arranged in the housing 1 and can be driven in rotation about a vertical axis 6 which is stationary with respect to the housing 1, by means of a motor 7 which is arranged on the underside of the housing 1.
  • the inner cylinder 5 is surrounded by an outer cylinder 8, which can also be driven in rotation about a vertical axis 9, which therefore runs parallel to the axis 6 of the inner cylinder 5, but is arranged eccentrically to the latter.
  • the outer cylinder 8 is driven by a motor 10, which is also provided on the underside of the housing 1.
  • the drive takes place via a pinion 11 and a ring gear 12 attached to the outside of the outer cylinder 8.
  • the outer cylinder 8 can be adjusted together with its motor 10 in the horizontal direction, that is to say transversely to the vertical axis 9, in the adjustment direction 13, so that the eccentricity e of the two axes 6, 9 can be changed.
  • the dust bar 15 can consist of two interlocking strips 18, 19, which can be adjusted radially to the axes 6, 9 to each other, so that when the eccentricity e changes, the strips 18, 19 can be adjusted relative to one another in such a way that the dust bar 15 blocks the plasticizing gap 14. locks completely in the circumferential direction of the cylinders 5, 8.
  • the storage surface 20 of the dust bar 15 facing the outlet opening 17 can run obliquely towards the outlet opening 17, so that it has a certain conveying effect towards the outlet opening 17.
  • a stationary outer heater 22 is arranged, which heats the outer cylinder 8 from its outside.
  • the electrical heater 22 is supplied with current by a current source 23 and regulated by means of a regulator 24, which is connected, among other things, to a temperature sensor 25 located in the vicinity of the outer cylinder 8.
  • a stationary heater 26 which is supplied with current in the same way by the current source 23 and regulated by means of a regulator 27 which is connected to a temperature sensor 28 located in the vicinity of the inner wall of the inner cylinder 5 ,
  • the stationary inner heater 26 is carried by the housing cover 4 as a holding plate.
  • the heaters can also be designed as controllable gas heaters.
  • the space 21 and the plasticizing gap 14 are closed by means of an annular inner cover 29.
  • In the inner cover 29 there is a feed opening 30, just as in the housing cover 4, above which a feed hopper 31 for thermoplastic material to be plasticized is arranged.
  • the thermoplastic to be plasticized is fed to this by means of a loading unit 32, for example in the form of a conveyor belt.
  • the surfaces of the inner cylinder 5 and outer cylinder 8 delimiting the plasticizing gap 14 can be provided with a fine surface profile 33 to improve the entrainment of plastic to be plasticized.
  • the second exemplary embodiment according to FIG. 5 differs from FIGS. 2 to 4 in that the outer cylinder 8 'is also driven by the motor 7 which drives the inner cylinder 5 ' .
  • an output 34 for example in the form of a belt drive, is provided, which is driven by the motor 7, which in turn is coupled to the pinion 11 via an articulated shaft 35, so that displacements of the outer cylinder 8 ' in the adjustment direction 13 are possible.
  • the outlet opening is not provided at the bottom, but rather that an outlet opening 17 ′ is formed at the top in the inner cover 29 and correspondingly in the housing cover 4, so that the plasticized material can emerge at the top .
  • an annular gap base 36 is formed on the inner cylinder 5 ', which therefore rotates with the inner cylinder 5 ' and which also engages under the outer cylinder 8 ' , so that it can be adjusted in the manner described.
  • the drive by means of only one motor 7 can also be used in the embodiment according to FIGS. 2 to 4.
  • the outlet opening 17 ′ can of course also be provided on the upper side of the plasticizing gap 14 in the embodiment with two motors 7, 10.
  • the mode of action is as follows: Plastic, in particular recycled glass fiber, is fed into the plasticizing gap 14 via the feed hopper 31 by means of the loading unit 32.
  • the heaters 22, 26 are switched on and are regulated in such a way that the inner cylinder 5 or 5 'and the outer cylinder 8 or 8' each have a predetermined temperature.
  • the cylinders 5, 5 'and 8, 8 ' are driven in the same direction in the direction of rotation 16.
  • the speed is selected so that the plastic to be treated has a residence time in the device of 10 to 1000 seconds. With practical dimensions of a device and practical throughputs, speeds result in the order of magnitude of approximately 1 min "1.
  • the speed is in any case very low, so that the plastic on the way from the feed opening 30 to the dust bar 15
  • the rotary drive is carried out either at the same speed or with a slight speed difference, the ratio of the speeds being a maximum of 1: 3.
  • the outer cylinder 8 or 8 ' is the slower-running cylinder same speed.
  • the dust bar 15 does not necessarily have to be arranged at the narrowest point of the plasticizing gap 14; likewise, the feed opening 30 does not have to be at the farthest point.
  • the task of eccentricity e is to reduce the respective path radially to the axes 6 or 9 from the inner cylinder 5 or 5 'or the outer cylinder 8 or 8' to the plastic to be reprocessed and thus lead to better heat input ,
  • compression of the plastic is achieved by narrowing the plasticizing gap 14 via the conveying path.
  • the radial adjustability of the dust bar 15 ensures that an adjustable leak gap 37 is generated, so that plastic which has already plasticized can be brought back into the area of the plastic task by means of such a leak gap 37.
  • the warm plasticized plastic then warms up the freshly supplied cold plastic; the overall heat supply is thereby improved.
  • leakage gaps 37 can be adjustable both between the dust bar 15 and the inner cylinder 5, 5 'and between the dust bar 15 and the outer cylinder 8, 8'.
  • a corresponding gap 37 must be formed anyway between the dust bar 15 and the inner cylinder 15 or 15 'and the outer cylinder 8 or 8'. In order not to allow such a gap 37 to become too large, elastic sealing lips 38 can be attached to the dust bar 15, which are indicated in FIG. 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Abstract

L'invention concerne un procédé permettant de plastifier une matière thermoplastique, qui est mis en oeuvre sur un dispositif présentant un cylindre extérieur (8) pouvant être entraîné en rotation et un cylindre intérieur (5) disposé entraînable en rotation dedans. Une fente de plastification (14) est formée entre les cylindres (5, 8). Il est prévu une amenée (30) débouchant par le haut dans la fente de plastification, pour la matière plastique à mettre en fusion, ainsi qu'une évacuation (17) placée en aval de l'amenée (30), dans le sens de rotation, pour la matière plastique fondue. En outre, il est prévu un système de chauffage (22, 26) pour chauffer la matière plastique dans la fente de plastification (14). Ladite fente de plastification (14) s'amenuise dans le sens de rotation.
PCT/EP2004/006873 2003-07-04 2004-06-25 Procede et dispositif pour plastifier des matieres thermoplastiques WO2005002816A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE200411000980 DE112004000980B4 (de) 2003-07-04 2004-06-25 Verfahren und Vorrichtung zum Plastifizieren thermoplastischer Kunststoffe

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003130223 DE10330223A1 (de) 2003-07-04 2003-07-04 Verfahren und Vorrichtung zum Plastifizieren thermoplastischer Kunststoffe
DE10330223.9 2003-07-04

Publications (1)

Publication Number Publication Date
WO2005002816A1 true WO2005002816A1 (fr) 2005-01-13

Family

ID=33521338

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/006873 WO2005002816A1 (fr) 2003-07-04 2004-06-25 Procede et dispositif pour plastifier des matieres thermoplastiques

Country Status (2)

Country Link
DE (2) DE10330223A1 (fr)
WO (1) WO2005002816A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3479992A1 (fr) * 2017-11-01 2019-05-08 Haute Ecole d'Ingénierie et de Gestion du Canton de Vaud (HEIG-VD) Dispositif et procédé de recyclage de matières plastiques

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB513871A (en) * 1937-04-23 1939-10-24 Ig Farbenindustrie Ag Improved machine for beating, squeezing, kneading or briquetting plastic masses or fibrous materials
FR1339440A (fr) * 1961-11-25 1963-10-04 Laminoir de plastification pour matières synthétiques
GB1333247A (en) * 1969-10-17 1973-10-10 Mitsubishi Petrochemical Co Method and apparatus for plasticizing thermoplastic synthetic resin
DE2747490A1 (de) * 1977-10-22 1979-04-26 Draiswerke Gmbh Mischwalzwerk
US4795599A (en) * 1986-06-06 1989-01-03 Mobil Oil Corporation Screw extruder and a method of operation thereof

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1045082B (de) * 1955-04-02 1958-11-27 Bayer Ag Vorrichtung zum Aufschmelzen von organischen thermoplastischen Kunststoffen
US3204289A (en) * 1962-08-22 1965-09-07 Monsanto Co Screw conveying apparatus
CA1142319A (fr) * 1978-12-20 1983-03-08 Peter Hold Methode et installation de traitement de plastiques et de polymeres
JP2812197B2 (ja) * 1994-04-25 1998-10-22 株式会社ニレコ ホットメルト材の熱溶解装置とその運転方法
DE19926178A1 (de) * 1999-06-09 2000-12-14 Dieffenbacher Gmbh Maschf Verfahren und Vorrichtung zum Aufheizen und Herstellen von faserverstärkten Kunststoffmassen zu einem Plastifikatstrang
DE10033165C1 (de) * 2000-07-07 2002-02-07 Hengst Walter Gmbh & Co Kg Vorrichtung und Verfahren zum Schmelzen und Fördern von Material

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB513871A (en) * 1937-04-23 1939-10-24 Ig Farbenindustrie Ag Improved machine for beating, squeezing, kneading or briquetting plastic masses or fibrous materials
FR1339440A (fr) * 1961-11-25 1963-10-04 Laminoir de plastification pour matières synthétiques
GB1333247A (en) * 1969-10-17 1973-10-10 Mitsubishi Petrochemical Co Method and apparatus for plasticizing thermoplastic synthetic resin
DE2747490A1 (de) * 1977-10-22 1979-04-26 Draiswerke Gmbh Mischwalzwerk
US4795599A (en) * 1986-06-06 1989-01-03 Mobil Oil Corporation Screw extruder and a method of operation thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3479992A1 (fr) * 2017-11-01 2019-05-08 Haute Ecole d'Ingénierie et de Gestion du Canton de Vaud (HEIG-VD) Dispositif et procédé de recyclage de matières plastiques

Also Published As

Publication number Publication date
DE112004000980B4 (de) 2012-04-12
DE10330223A1 (de) 2005-01-20
DE112004000980D2 (de) 2006-04-20

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