WO2004087391A1 - Procede et dispositif pour plastifier une matiere plastique - Google Patents

Procede et dispositif pour plastifier une matiere plastique Download PDF

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Publication number
WO2004087391A1
WO2004087391A1 PCT/AT2004/000054 AT2004000054W WO2004087391A1 WO 2004087391 A1 WO2004087391 A1 WO 2004087391A1 AT 2004000054 W AT2004000054 W AT 2004000054W WO 2004087391 A1 WO2004087391 A1 WO 2004087391A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
plastic material
tools
gear
plasticizing
Prior art date
Application number
PCT/AT2004/000054
Other languages
German (de)
English (en)
Inventor
Helmut Bacher
Helmuth Schulz
Georg Wendelin
Original Assignee
Helmut Bacher
Helmuth Schulz
Georg Wendelin
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 Helmut Bacher, Helmuth Schulz, Georg Wendelin filed Critical Helmut Bacher
Publication of WO2004087391A1 publication Critical patent/WO2004087391A1/fr

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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
    • B29B17/04—Disintegrating plastics, e.g. by milling
    • B29B17/0412—Disintegrating plastics, e.g. by milling to large particles, e.g. beads, granules, flakes, slices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/115—Stirrers characterised by the configuration of the stirrers comprising discs or disc-like elements essentially perpendicular to the stirrer shaft axis
    • B01F27/1152—Stirrers characterised by the configuration of the stirrers comprising discs or disc-like elements essentially perpendicular to the stirrer shaft axis with separate elements other than discs fixed on the discs, e.g. vanes fixed on the discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/808—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with stirrers driven from the bottom of the receptacle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/93—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with rotary discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/75—Discharge mechanisms
    • B01F35/754—Discharge mechanisms characterised by the means for discharging the components from the mixer
    • B01F35/75455—Discharge mechanisms characterised by the means for discharging the components from the mixer using a rotary discharge means, e.g. a screw beneath the receptacle
    • 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
    • B29C48/285—Feeding the extrusion material to the extruder
    • B29C48/286—Raw material dosing
    • 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
    • B29C48/365—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using pumps, e.g. piston pumps
    • B29C48/37—Gear pumps
    • 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
    • B29C48/387—Plasticisers, homogenisers or feeders comprising two or more stages using a screw extruder and a gear pump
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/19—Stirrers with two or more mixing elements mounted in sequence on the same axis
    • B01F27/191—Stirrers with two or more mixing elements mounted in sequence on the same axis with similar elements
    • 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
    • B29B17/04—Disintegrating plastics, e.g. by milling
    • B29B2017/0424—Specific disintegrating techniques; devices therefor
    • B29B2017/048—Cutter-compactors, e.g. of the EREMA type
    • 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
    • B29C2791/00—Shaping characteristics in general
    • B29C2791/004—Shaping under special conditions
    • B29C2791/006—Using vacuum
    • 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
    • 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
    • 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 for plasticizing plastic material, the plastic material being plasticized in a gear extruder or in a gear pump.
  • the invention further relates to an apparatus for performing the method.
  • the invention is based on the knowledge gained through tests that a suitable pretreatment of the plastic material is required for the processing of plastic material by means of a gear extruder in order to be able to process this material in a targeted manner by the gear extruder. Proceeding from this, the method according to the invention avoids the difficulties mentioned at the outset in that the thermoplastic material in a container is processed by moving tools located in this container and heated to a temperature below the plasticizing temperature and is thereby softened and only in this softened state through a discharge opening of the Container is inserted into the gear extruder or the gear pump and is only plasticized there.
  • the procedure is preferably such that the plastic material is largely homogeneously heated to a temperature close to the plasticizing temperature. Polyolefins are particularly suitable for this, because their preheating in the container by the moving tools to a level close to Melting point temperature is possible.
  • the moving tools simultaneously cause mixing and, if necessary, drying and / or comminution of the processed material and thus homogenization of the temperature distribution in the material, so that the material introduced into the gear extruder or the gear pump has a very narrow temperature spectrum, which is close to the melting point of the respective processing material can be brought.
  • the tools can be easily used as shredding tools, e.g. Knife, train.
  • Pre-shredded material e.g. granules
  • Pre-shredded material usually only requires mixing and heating, possibly also drying.
  • Tools that are driven to rotate around at least one vertical axis are suitable for this.
  • the motor energy introduced for this circulation is converted into thermal energy of the processed material by friction of the material on the tools or on the container wall or the material particles.
  • Rotating tools can also be used to:
  • a direct temperature measurement in the container can take place within the scope of the invention and / or the energy absorbed by the drive motor of the tools can be used and / or the material supply into the container. In the latter two cases, the fact is used that the condition of the material and the amount thereof in the container affect the energy consumed by the motor.
  • the method is based on a construction with a plasticizing element which carries out the plasticization of the plastic material and has gear wheels, to which the plastic material to be plasticized is fed through an inlet opening of a housing which accommodates the gear wheels.
  • the invention consists in that the inlet opening is in flow connection with the discharge opening of a container in which tools which are moved by at least one drive are arranged and which serve to soften the plastic material introduced into the container by heating it to a temperature below the plasticizing temperature.
  • at least one monitoring device is provided to achieve or maintain this temperature.
  • This monitoring device can have at least one temperature sensor arranged in the container and / or a sensor for the energy absorbed by the drive of the tools and / or a sensor for the amount of plastic material introduced into the container.
  • some tools can be attached to a carrier disk which is driven by the drive for rotation about a vertical axis and whose tools are arranged at least approximately at the height of the discharge opening of the container. Due to the centrifugal force exerted by these tools on the processed material and, if necessary, by a spatula-like design of the tools, the aforementioned pressing of the processed material into the discharge opening and thus intensive feeding of the gear extruder can be achieved.
  • the carrier disc forms a subdivision of the container interior, so that it is substantially avoided that the material whirled up by the rotating tools and driven in the container to circulate in the form of a mixing drum gets under the carrier disc.
  • additional tools can also be fastened on at least one further carrier disk driven for rotation about a vertical axis, which further carrier disk is arranged in the container at a distance above the carrier disk assigned to the discharge opening.
  • This additional carrier disc can sit on the same drive shaft as the carrier disc assigned to the discharge opening, this shaft expediently penetrating the container bottom in a sealed manner and being driven from below.
  • it is also possible to drive the shaft from above and constructions are also conceivable in which the two carrier disks are moved by different drives, which can be arranged both below and above the container.
  • the inlet opening of the plasticizing element is expediently connected directly, that is to say directly, to the discharge opening of the container in order to take full advantage of the filling effect mentioned.
  • the plasticizing element has at least two gearwheel pairs arranged one behind the other in the direction of flow of the plastic material.
  • the additional gear pairs form mixing elements. The melt viscosity determines the geometry of these mixing gears and vice versa.
  • the discharge gear pair following the mixing gear pair enables a further improved plasticization and homogenization, but also the generation of higher pressures in the material leaving the plasticizer, so that the resistances exerted by downstream system components, such as melt filters, nozzles, etc., are overcome.
  • the arrangement is such that, in at least two meshing gears, their teeth mesh without blocking with respect to the plastic material being conveyed.
  • a strict combing of the gears would block the material to be conveyed.
  • This freedom from blocking can be achieved in the context of the invention by designing the teeth of the gears of at least one gear as stub teeth. Further possibilities for achieving freedom from blocking are slots or channels in at least one of the meshing gears and / or a thread cut over the teeth.
  • FIG. 1 shows a vertical section through a simple embodiment in which only one pair of gears is provided.
  • FIG. 2 is a section along the line II-II of FIG. 1.
  • FIG. 3 shows an embodiment in which two tool carrier disks arranged one above the other are provided in the container.
  • Fig. 4 shows an embodiment with two tool carrier disks in the container and two gear pairs in the gear extruder.
  • FIG. 5 shows an embodiment variant with three gear pairs in the gear extruder.
  • 6 shows gearwheels designed with overflow channels in a perspective view.
  • Fig. 7 shows the formation of mixed grooves in the gear pairs and
  • Fig. 8 shows mixed grooves in the form of threads.
  • the embodiment according to FIGS. 1 and 2 has a container 1 for the pre-processing of the thermoplastic material, for example polyolefins, polypropylene, polyethylene, etc.
  • This container 1 is filled from above through a filling opening 2 in the direction of arrow 3. If the processing of the plastic material is to take place under vacuum, the container 1 is connected via a line 4 to an evacuation device 5. In this case, one is at the filling opening 2 Lock 6 connected, the lock chamber 7 can be locked by two hydraulically or pneumatically operated slide 8 and is connected via a line 9 to the evacuation device 5.
  • the slide 8 are shown in Fig. 1 in the half-open position.
  • a disc 11 is arranged, which as
  • Carrier for rotating tools 12 is used. These tools can be pure mixing tools and / or, if the material introduced into the container 1 is to be crushed, as a knife.
  • the disc 11 is fastened on a shaft 13 arranged vertically in the axis of the cylindrical container 1, which passes through the container base 10 in a sealed manner and is driven to rotate by a motor 14.
  • the rotation of the tools causes the plastic material in the container 1 to be processed to be whirled up and to rise in the form of a mixing drum 15 along the side wall 16 of the container and, after reaching the maximum height, to fall back inwards towards the center of the container.
  • the container 1 In its lower region, the container 1 has one in the side wall 16
  • Discharge opening 17, which in the construction shown in FIG. 1 coincides with the inlet opening 18 of the housing 31 of a plasticizing member 19, which has a gear pair 20, 21 directly adjoining the inlet opening 18.
  • the two toothed wheels 20, 21 mesh with one another and rotate in the direction shown by arrows 22, that is to say in the direction away from the center of the inlet opening 18. This forms at the edge of the inlet opening 18 two feed gaps 23 into which the material to be plasticized is drawn from the discharge opening 17 in the direction of the arrows 24 into the plasticizing member 19.
  • the meshing gears 20, 21 effect kneading and thus plasticizing of the processed plastic material, which is expressed by the pair of gears 20, 21 through a discharge channel 25 in the direction of arrow 39 from the housing 31.
  • the plasticizing element 19 forms a gear pump. However, there can be a nozzle or the like on the discharge channel 25. be connected so that the plasticizing member 19 acts as a gear extruder.
  • the aforementioned mixing or comminution of the goods in the container 1 by means of the tools 12 causes the processed goods to be heated and possibly dried by means of the energy introduced by the motor.
  • This heating is designed in such a way that the material in the container 1 is brought to a temperature just below its plasticizing temperature, that is to say it reaches a softened state, and is only finally plasticized in the plasticizing element 19. This procedure can be carried out in batches or continuously if a suitable ongoing loading of the container 1 is ensured.
  • At least one temperature sensor 26 can be provided in the container 1, which is connected via a line 27 to a control device 28, the output signal of which is connected to the motor 14 via a line 29 and controls it in such a way that the temperature of the material processed in the container 1 is kept at least approximately at the desired value. This ensures that the material entering the plasticizing member 19 through the discharge opening 17 is sufficiently softened to be gripped and plasticized by the gear wheels 20, 21 of the plasticizing member 19 without any problems.
  • control device 28 can also be designed such that it monitors the energy absorbed by the motor 14, which is dependent on the condition of the material processed in the container 1. If its temperature behavior is sufficiently known, the aforementioned control of the motor 14 can suffice.
  • Another alternative for monitoring the achievement or maintenance of the heated state of the plastic material in the container 1 is to control the material supply into the container 1. The energy absorbed by the motor 14 and thus the average temperature of the processed material in the container 1 also depends on the degree of filling of the container 1.
  • Another way of influencing the temperature of the processed material is to provide additional heating or cooling of the container 1 and / or the plasticizing element 19.
  • at least one heating and / or cooling winding 30 can be provided on the side wall 16 of the container 1.
  • 19 heating and / or cooling channels 32 can be embedded in the housing 31 of the plasticizing element 19.
  • Suitable sensors 33 can be embedded in the housing 31 for this purpose.
  • one of the gears 20, 21 is keyed onto a shaft 34 which is mounted in the housing 31 and is driven by a motor 35.
  • FIG. 1 shows an embodiment with only one tool carrier disk 11, the tools 12 of which at least approximately at the level of the lower feed gap 23 of the gear pair 20, 21 3 shows an embodiment with two tool carrier disks 11 which are arranged one above the other at a distance from one another and which are arranged on one another sit on a common shaft 13 and are driven together by the motor 14 arranged under the tank bottom 10 for rotation.
  • the lower tool carrier disk 11 is arranged analogously to the construction according to FIG.
  • the tools 12 are at least approximately at the height of the lower feed gap 23 and convey the material moved by them into the feed gap 23 due to the effect of centrifugal force and possibly also a spatula.
  • the upper tool carrier disk 11 is arranged somewhat higher than the upper feed gap 23, their tools 12 move the processed plastic material in the form of the mixing drum 15. In the space 38 lying between the two tool carrier disks 11, such a mixing drum 15 can only be formed to a limited extent, since a rise in the circulating material essentially occurs the upper tool carrier disk 11 is limited, the circumference of which can be close to the container side wall 16.
  • the material introduced into the container 1 through the filling opening 2 is first grasped by the tools 12 of the upper disk 11 and mixed or, if appropriate, also comminuted in the form of the mixing drum 15.
  • This material can only gradually pass through the annular gap 37 between the container wall 16 and the circumference of the upper disk 11 into the space 38, where it is again picked up and mixed or, if necessary, comminuted again by the tools 12 of the lower disk 11. Only now is the material thus pre-processed and heated to the suitable temperature below the plasticizing temperature and thereby softened, introduced into the gear pump formed by the gear wheels 20, 21, plasticized there and finally discharged through the discharge channel 25 in the direction of arrow 39.
  • a deflector 50 may be provided, which is fastened to the inner wall 16 of the container 1 and acts as a guide element which guides the circulating mass into the pull-in gap 23.
  • the end of this deflector 50 which emits the plastic material expediently lies at least approximately at the level of the insertion gap 23 of the upper gear wheel 20.
  • a further pair of gears 41, 42 is arranged in the housing 31 of the plasticizing member 19, which serves as a pair of mixing gears and ensures a higher melt quality in the discharge channel 25. Since the gear pair 41, 42 must rotate in the direction of arrows 43 and meshes with the gear wheels 20, 21 in order to achieve the required discharge direction (arrow 39), the gear wheels 20, 21 must rotate (arrows 22) such that a single one is centered between the two gear wheels 20, 21 lying intake gap 23 of the gear pump results.
  • a deflector 50 can be provided, which acts in the same way as the deflector 50 in the embodiment 3, and the circumferential softened plastic material in the interior of the container 1 passes into the feed gap 23 of the upper gear 20 of the first pair of gears. As shown in FIG. 5, a wide feed angle ⁇ or ⁇ applies to both feed gaps 23, so that sufficient feeding of the first gear pair 20, 21 is ensured.
  • teeth 46 of the intermeshing gear wheels 41, 42 and 44, 45 are designed as stub teeth, that is, they do not mesh strictly with one another, but only in the area of the tooth tips.
  • gaps 47 then form between the teeth 46 of the two mixing gears 41, 42, through which the processed material can flow. 6
  • the teeth 46 of meshing gears can be interrupted by grooves 48 running in the circumferential direction of the gears. This results in a kneading of the processed material, which favors the plasticization of the same. Slots provided on teeth 46 may act in a similar manner.
  • thermoplastic material Another way of preventing the material from blocking on meshing gears 41, 42 is to cut a thread 49 (FIG. 8) over the teeth of these gears, which can be carried out in a simple manner in terms of production.
  • the processed thermoplastic material has the possibility of flowing through the free spaces formed, that is, of "running over" the gear pair in question.
  • the conveying effect of the gears and possibly also the mentioned alternative for the processed plastic can also be supported in that at least one of the gear pairs 20, 21 or 41, 42 or 44, 45 has a helical toothing or an arrow toothing.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

L'invention concerne un procédé permettant de plastifier une matière plastique, au moyen d'une unité de plastification comprenant une extrudeuse à engrenages ou une pompe à engrenages. Selon ce procédé, la matière thermoplastique est travaillée dans une cuve (1) à l'aide d'outils (12) mobiles situés dedans et est portée par chauffage à une température inférieure à la température de plastification et s'en trouve ramollie. Ce n'est que dans cet état ramolli que le matériau est introduit dans l'unité de plastification (19) et y est alors plastifié. L'invention concerne un dispositif permettant de mettre ledit procédé en oeuvre, qui comprend un boîtier (31) d'unité de plastification (19) présentant des engrenages (20, 21, 41, 42, 44, 45), dont l'ouverture d'admission (18) communique en écoulement avec l'ouverture de décharge (17) d'une cuve (1). Il est prévu dans la cuve (1), des outils (12) mis en mouvement à l'aide d'au moins un moteur (14), qui travaillent la matière plastique et la portent par chauffage à une température inférieure à la température de plastification, ce qui permet de la ramollir.
PCT/AT2004/000054 2003-04-01 2004-02-20 Procede et dispositif pour plastifier une matiere plastique WO2004087391A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0051103A AT503334B1 (de) 2003-04-01 2003-04-01 Verfahren und vorrichtung zur plastifizierung von kunststoffmaterial
ATA511/2003 2003-04-01

Publications (1)

Publication Number Publication Date
WO2004087391A1 true WO2004087391A1 (fr) 2004-10-14

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AT (1) AT503334B1 (fr)
WO (1) WO2004087391A1 (fr)

Cited By (15)

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AT512223A1 (de) * 2011-10-14 2013-06-15 Erema Vorrichtung zum aufbereiten von kunststoffmaterial
US20140234462A1 (en) * 2011-10-14 2014-08-21 Erema Engineering Recycling Maschinen Und Anlagen Gesellschaft M.B.H. Apparatus for processing plastic material
US20140252147A1 (en) * 2011-10-14 2014-09-11 Erema Engineering Recycling Maschinen Und Anlagen Gesellschaft M.B.H. Apparatus for processing plastic material
US20140252148A1 (en) * 2011-10-14 2014-09-11 Erema Engineering Recycling Maschinen Und Anlagen Gesellschaft M.B.H. Apparatus for processing plastic material
US20140287081A1 (en) * 2011-10-14 2014-09-25 EREMA Engineering Recycling Maschinen und Anlagen Gesellschaft m. b. H. Apparatus for processing plastic material
US20140291427A1 (en) * 2011-10-14 2014-10-02 Enema Engineering Recycling Maschinen und Anlagen Gesellschaft M.B.H. Apparatus for processing plastic material
US20140299700A1 (en) * 2011-10-14 2014-10-09 Erema Engineering Recycling Maschinen Und Anlagen Gesellschaft M.B.H. Apparatus for processing plastic material
US20140312151A1 (en) * 2011-10-14 2014-10-23 Erema Engineering Recycling Maschinen Und Anlagen Gesellschaft M.B.H. Apparatus for processing plastic material
US9216522B2 (en) 2011-10-14 2015-12-22 Erema Engineering Recycling Maschinen Und Anlagen Gesellschaft M.B.H. Apparatus for the pretreatment and subsequent plastification of plastic material with melt filter
US9254603B2 (en) 2011-10-14 2016-02-09 Erema Engineering Recycling Maschinen Und Anlagen Gesellschaft M.B.H. Apparatus for processing plastic material
US10173346B2 (en) 2010-04-14 2019-01-08 Erema Engineering Recycling Maschinen Und Anlagen Gesellschaft M.B.H. Device for processing plastic material
CN109248579A (zh) * 2018-09-05 2019-01-22 苏州迈荣祥信息科技有限公司 一种新型生态土壤设备
CN113457602A (zh) * 2021-05-18 2021-10-01 常佳佳 一种可降解聚乙烯改性材料制备装置
CN117224397A (zh) * 2023-11-14 2023-12-15 江苏科跃过滤设备有限公司 一种中药蒸煮过滤装置
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US10173346B2 (en) 2010-04-14 2019-01-08 Erema Engineering Recycling Maschinen Und Anlagen Gesellschaft M.B.H. Device for processing plastic material
US9254603B2 (en) 2011-10-14 2016-02-09 Erema Engineering Recycling Maschinen Und Anlagen Gesellschaft M.B.H. Apparatus for processing plastic material
US20140252147A1 (en) * 2011-10-14 2014-09-11 Erema Engineering Recycling Maschinen Und Anlagen Gesellschaft M.B.H. Apparatus for processing plastic material
US9266255B2 (en) * 2011-10-14 2016-02-23 Erema Engineering Recycling Maschinen Und Anlagen Gesellschaft M.B.H. Apparatus for pretreatment and subsequent conveying, plastification or agglomeration of plastic material
US9289774B2 (en) * 2011-10-14 2016-03-22 Erema Engineering Recycling Maschinen Und Anlagen Gesellschaft M.B.H. Apparatus for the pretreatment and subsequent conveying, plastification, or agglomeration of plastics
US20140287081A1 (en) * 2011-10-14 2014-09-25 EREMA Engineering Recycling Maschinen und Anlagen Gesellschaft m. b. H. Apparatus for processing plastic material
US20140291427A1 (en) * 2011-10-14 2014-10-02 Enema Engineering Recycling Maschinen und Anlagen Gesellschaft M.B.H. Apparatus for processing plastic material
US20140299700A1 (en) * 2011-10-14 2014-10-09 Erema Engineering Recycling Maschinen Und Anlagen Gesellschaft M.B.H. Apparatus for processing plastic material
US20140312151A1 (en) * 2011-10-14 2014-10-23 Erema Engineering Recycling Maschinen Und Anlagen Gesellschaft M.B.H. Apparatus for processing plastic material
AT512223B1 (de) * 2011-10-14 2015-02-15 Erema Vorrichtung zum aufbereiten von kunststoffmaterial
US9216522B2 (en) 2011-10-14 2015-12-22 Erema Engineering Recycling Maschinen Und Anlagen Gesellschaft M.B.H. Apparatus for the pretreatment and subsequent plastification of plastic material with melt filter
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AT512223A1 (de) * 2011-10-14 2013-06-15 Erema Vorrichtung zum aufbereiten von kunststoffmaterial
US11931946B2 (en) 2011-10-14 2024-03-19 Erema Engineering Recycling Maschinen Und Anlagen Gesellschaft M.B.H. Apparatus for processing plastic material
US20140239104A1 (en) * 2011-10-14 2014-08-28 Erema Engineering Recycling Maschinen Und Anlagen Gesellschaft M.B.H. Apparatus for processing plastic material
US20140252148A1 (en) * 2011-10-14 2014-09-11 Erema Engineering Recycling Maschinen Und Anlagen Gesellschaft M.B.H. Apparatus for processing plastic material
US9289919B2 (en) * 2011-10-14 2016-03-22 Erema Engineering Recycling Maschinen Und Anlagen Gesellschaft M.B.H. Apparatus for the pretreatment and subsequent plastification or agglomeration of plastics
US9296128B2 (en) 2011-10-14 2016-03-29 Erema Engineering Recycling Maschinen Und Anlagen Gesellschaft M.B.H. Apparatus for the pretreatment and subsequent conveying, plastification, or agglomeration of plastics
US9566720B2 (en) 2011-10-14 2017-02-14 Erema Engineering Recycling Maschinen Und Anlagen Gesellschaft M.B.H. Apparatus for the pretreatment and subsequent conveying, plastification, or agglomeration of plastics
KR101744275B1 (ko) 2011-10-14 2017-06-07 에레마 엔지니어링 리싸이클링 마쉬넨 운트 안라겐 게젤샤프트 엠. 베.하. 플라스틱 재료의 처리를 위한 장치
US9744689B2 (en) 2011-10-14 2017-08-29 Erema Engineering Recycling Maschinen Und Anlagen Gesellschaft M.B.H. Apparatus for the pretreatment and subsequent conveying, plastification, or agglomeration of plastics
US20140234462A1 (en) * 2011-10-14 2014-08-21 Erema Engineering Recycling Maschinen Und Anlagen Gesellschaft M.B.H. Apparatus for processing plastic material
US9266272B2 (en) * 2011-10-14 2016-02-23 Erema Engineering Recycling Maschinen Und Anlagen Gesellschaft M.B.H. Apparatus for pretreatment and subsequent conveying of plastic material having a pocket
CN109248579A (zh) * 2018-09-05 2019-01-22 苏州迈荣祥信息科技有限公司 一种新型生态土壤设备
CN113457602A (zh) * 2021-05-18 2021-10-01 常佳佳 一种可降解聚乙烯改性材料制备装置
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CN117224397B (zh) * 2023-11-14 2024-02-27 江苏科跃过滤设备有限公司 一种中药蒸煮过滤装置

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