EP4395974A1 - Extrudeuse planétaire conçue pour le traitement de matériaux biodégradables et procédé de nettoyage de cette extrudeuse planétaire - Google Patents

Extrudeuse planétaire conçue pour le traitement de matériaux biodégradables et procédé de nettoyage de cette extrudeuse planétaire

Info

Publication number
EP4395974A1
EP4395974A1 EP22793524.4A EP22793524A EP4395974A1 EP 4395974 A1 EP4395974 A1 EP 4395974A1 EP 22793524 A EP22793524 A EP 22793524A EP 4395974 A1 EP4395974 A1 EP 4395974A1
Authority
EP
European Patent Office
Prior art keywords
planetary roller
roller extruder
flow channel
flow
cleaning
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.)
Pending
Application number
EP22793524.4A
Other languages
German (de)
English (en)
Inventor
Thomas Gesper
Heinrich Dohmann
Michael Kaiser
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.)
Battenfeld Cincinnati Germany GmbH
Original Assignee
Battenfeld Cincinnati Germany 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 Battenfeld Cincinnati Germany GmbH filed Critical Battenfeld Cincinnati Germany GmbH
Publication of EP4395974A1 publication Critical patent/EP4395974A1/fr
Pending legal-status Critical Current

Links

Classifications

    • 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
    • B29C48/254—Sealing means
    • 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
    • B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
    • B29B7/485—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws with three or more shafts provided with screws
    • 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
    • B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
    • B29B7/488—Parts, e.g. casings, sealings; Accessories, e.g. flow controlling or throttling devices
    • 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
    • B29B7/802—Constructions or methods for cleaning the mixing or kneading device
    • 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
    • B29B7/826—Apparatus therefor
    • 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
    • B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
    • 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
    • B29C48/27—Cleaning; Purging; Avoiding contamination
    • B29C48/2715—Cleaning; Purging; Avoiding contamination of plasticising units
    • 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
    • B29C48/375—Plasticisers, homogenisers or feeders comprising two or more stages
    • B29C48/385—Plasticisers, homogenisers or feeders comprising two or more stages using two or more serially arranged screws in separate barrels
    • 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
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • B29C48/435—Sub-screws
    • B29C48/44—Planetary screws
    • 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
    • B29B7/58—Component parts, details or accessories; Auxiliary operations
    • B29B7/72—Measuring, controlling or regulating
    • B29B7/728—Measuring data of the driving system, e.g. torque, speed, power, vibration
    • 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
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0059—Degradable
    • B29K2995/006—Bio-degradable, e.g. bioabsorbable, bioresorbable or bioerodible

Definitions

  • FIG. 1 shows a planetary roller extruder 1 in which a plurality of roller parts 3 are arranged along the extrusion axis 12 and zones are thus formed which are passed through one after the other in the process.
  • the number of zones depends on the application, how much e.g. thermal or mechanical homogenization is required or how many different steps of heating and cooling or the gradual admixture of other substances.
  • some roller parts 3 have openings 4 which are closed with a cover but can be equipped with additional components if required.
  • One of the openings 4 is equipped with a hopper 5 through which materials or additives are fed.
  • the common central spindle is driven by drive 2.
  • the area around the planetary roller extruder 1 is marked with the position number 16.
  • This flow channel 11 is fluidically designed in such a way that it can be cleaned by means of a cleaning process, such as the CIP process described above, without dismantling the parts.
  • the flow surfaces of the flow channel consequently have no shoulders or notches on or between the flow surfaces. Sudden cross-sectional changes are avoided, but are not completely ruled out and may even be desired to change the flow conditions, for example to achieve turbulent flow. However, the transition should be largely homogeneous, i.e. without steps and edges that could tend to get dirty again.
  • the seals 10 between the static parts are designed accordingly for this and eliminate such shoulders and/or edges due to their elasticity.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

L'invention concerne une extrudeuse planétaire (1) pour l'homogénéisation, la dispersion, la pasteurisation et le tempérage ciblé de matériaux biodégradables qui, lors du traitement, ont tendance à subir une modification de leurs propriétés, en particulier les propriétés qui excluent une utilisation ultérieure après leur traitement, comme les produits alimentaires, en particulier les aliments, ou les médicaments ou les produits pharmaceutiques, différentes zones étant présentes dans l'extrudeuse planétaire (1), un canal d'écoulement (11) comportant diverses transitions d'une zone à la zone suivante étant présent à l'intérieur (15) de l'extrudeuse planétaire (1), des pièces étant montées de manière statique et mobile. Selon l'invention, il est prévu qu'un joint d'étanchéité (10) soit monté entre les pièces montées de manière statique, au moyen duquel les interstices ou les chambres creuses existant(e)s peuvent être fermé(e)s, et qu'une garniture étanche à anneau glissant soit montée entre les pièces mobiles qui sont guidées depuis le canal d'écoulement (11) à l'intérieur (14) de l'extrudeuse planétaire (1) vers l'extérieur et l'environnement (16), de sorte que des décrochements et/ou des entailles soient évités dans la zone de transition des pièces mobiles le long des surfaces d'écoulement.
EP22793524.4A 2021-09-30 2022-09-21 Extrudeuse planétaire conçue pour le traitement de matériaux biodégradables et procédé de nettoyage de cette extrudeuse planétaire Pending EP4395974A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021125395.0A DE102021125395A1 (de) 2021-09-30 2021-09-30 Planetwalzenextruder zum Verarbeiten von biologisch abbaubaren Materialien und Verfahren zum Reinigen des Planetwalzenextruders
PCT/EP2022/076167 WO2023052211A1 (fr) 2021-09-30 2022-09-21 Extrudeuse planétaire conçue pour le traitement de matériaux biodégradables et procédé de nettoyage de cette extrudeuse planétaire

Publications (1)

Publication Number Publication Date
EP4395974A1 true EP4395974A1 (fr) 2024-07-10

Family

ID=83995155

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22793524.4A Pending EP4395974A1 (fr) 2021-09-30 2022-09-21 Extrudeuse planétaire conçue pour le traitement de matériaux biodégradables et procédé de nettoyage de cette extrudeuse planétaire

Country Status (3)

Country Link
EP (1) EP4395974A1 (fr)
DE (1) DE102021125395A1 (fr)
WO (1) WO2023052211A1 (fr)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3520662A1 (de) 1985-06-08 1987-01-02 Rudolf Paul Fritsch Wellendichtung fuer eine vorrichtung zur kontinuierlichen verarbeitung hochviskoser medien, insbesondere zur herstellung hochmolekularer polymere
DE3712749C1 (de) 1987-04-15 1988-07-07 Berstorff Gmbh Masch Hermann Verwendung eines Sekundaerextruders einer Tandemanlage zum Kuehlen einer in einem Primaerextruder hergestellten Kunststoff-Treibmittelgemischschmelze
DE19508125C1 (de) 1995-02-13 1996-02-29 Gewerk Schalker Eisenhuette Einzugszylinder für einen Planetwalzenextruder
WO1997031767A2 (fr) 1996-02-29 1997-09-04 Fritsch, Rosemarie, J. Machine a vis multiarbre
DE10142890B4 (de) * 2001-09-03 2014-03-20 Entex Rust & Mitschke Gmbh Planetwalzenextruder
DE102006063021B3 (de) * 2006-01-16 2018-04-26 Entex Rust & Mitschke Gmbh Planetwalzenextruder
WO2019166125A1 (fr) * 2018-02-28 2019-09-06 Entex Rust & Mitschke Gmbh Procédé pour la préparation et la transformation de polymères et de mélanges polymères dans une extrudeuse planétaire de structure modulaire
DE102018211617A1 (de) * 2018-07-12 2020-02-27 Tesa Se Herstellung einer Haftklebemasse auf Basis von festem EPDM-Kautschuk
DE102020003391A1 (de) 2020-03-19 2021-09-23 E N T E X Rust & Mitschke GmbH 3D-Drucker zur Herstellung und Verzierung von Bäckereiwaren und Konditorwaren

Also Published As

Publication number Publication date
WO2023052211A1 (fr) 2023-04-06
DE102021125395A1 (de) 2023-03-30

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