The invention relates to a processing plant for plastics material and to a method for processing plastics material, in particular for processing thermoplastic material for recycling. The processing plant (1) comprises a first processing unit (2), a second processing unit (10) and a plasticizing device (6). The plasticizing device (6) is downstream of the first processing unit (2) and the second processing unit (10) as viewed in the delivery direction. The first processing unit (2) is in flow connection with the plasticizing device (6) and the second processing unit (10) is also in flow connection with the plasticizing device (6). The plasticizing device (6) can be charged as and when required by means of the first processing unit (2) and/or by means of the second processing unit (10).
B29B 7/24 - Component parts, details or accessoriesAuxiliary operations for feeding
B29C 48/375 - Plasticisers, homogenisers or feeders comprising two or more stages
B29C 48/385 - Plasticisers, homogenisers or feeders comprising two or more stages using two or more serially arranged screws in separate barrels
B29C 48/285 - Feeding the extrusion material to the extruder
B29B 7/60 - Component parts, details or accessoriesAuxiliary operations for feeding, e.g. end guides for the incoming material
B29B 7/74 - MixingKneading using other mixers or combinations of dissimilar mixers
B29B 17/00 - Recovery of plastics or other constituents of waste material containing plastics
B29C 48/39 - Plasticisers, homogenisers or feeders comprising two or more stages a first extruder feeding the melt into an intermediate location of a second extruder
2.
METHOD FOR PROCESSING PLASTIC WASTE FROM A POLYMERIC BASE MATERIAL
The invention relates to a method for processing plastic waste from a polymeric base material, in which method an adjustable amount of at least one additive is added to the melt processed by a melt treatment apparatus (7). The melt is mixed with the additive in a mixing apparatus (15) downstream of the melt treatment apparatus (7) and a common melt–additive mixed stream is output from said mixing apparatus. Subsequently, a first value of at least one parameter of the added additive is determined as the first actual measured value and is forwarded to an open-loop and closed-loop control device (4). The actual measured value is subtracted from a target value of the parameter stored in the open-loop and closed-loop control device (4) and a differential value is formed. The added amount of the at least one additive is increased or reduced or remains unchanged on the basis of the determined differential value.
The invention relates to a method and a processing plant (1) for plastic material, for the recycling thereof. To this end, the processing plant (1) comprises a feed device (4), a processing unit (2) having a comminuting device (5) and a conveying device (6) adjoining the comminuting device (5), and an extrusion device (3) having an extruder screw (21). During its conveying movement along a first conveying section (9) toward a transfer region (8) by means of the conveying device (6), the comminuted plastic material is heated to a transfer temperature with a mean temperature value, which falls into the range of the softening temperature of the plastic material. In the transfer region (8), the comminuted plastic material is transferred to the extrusion device (3).
B29B 7/42 - MixingKneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix
B29C 48/84 - 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 by heating or cooling the feeding screws
4.
Method for producing a polycondensate melt from a first partial melt stream and a second partial melt stream, with increasing or reducing an intrinsic viscosity of the second partial melt
A method for producing a polycondensate melt from a primary material and a secondary material from materials of substantially the same type is provided. A first partial melt stream of the primary material and a second partial melt stream of the secondary material are provided, and a measured value of the intrinsic viscosity of both partial melt streams is determined, and a difference value is calculated from the measured values. Based on the difference value, the intrinsic viscosity of the second partial melt stream is increased, reduced or maintained unchangedly by using a first melt treatment device. Subsequently, the two partial melt streams are combined into a common melt stream.
B29B 7/42 - MixingKneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix
The invention relates to a method and to a processing plant (1) for plastics material for the recycling thereof. For this purpose, the processing plant (1) comprises a feeding apparatus (4), a processing unit (2), having a comminuting apparatus (5) and a conveying apparatus (6) adjoining the same, and also comprising an extrusion apparatus (3) with an extruder screw (21). As it is being conveyed along a first conveying section (9) in the direction of a transfer region (8) by means of the conveying apparatus (6), the comminuted plastics material is heated to a transfer temperature with an average temperature value in the region of the softening temperature of the plastics material. In the transfer region (8), the comminuted plastics material is transferred to the extrusion apparatus (3).
The invention relates to a method for producing a polycondensate melt from a primary material and from a secondary material from respectively substantially the same type of materials. A first melt part-flow (I) of the primary material and a second melt part-flow (II) of the secondary material are provided and a respective measured value of the intrinsic viscosity of each of the two melt part-streams (I, II) is determined and a differential value is formed from these. Based on this differential value, the intrinsic viscosity of the second melt part-flow (II) (8) is increased, reduced or maintained unchanged by means of a first melt treatment device. Subsequently the two melt part-streams (I, II) are combined into one common melt flow.
A device for processing thermoplastic plastic includes a storage container for receiving pieces of plastic particles or a conveying line for conveying the pieces of plastic particles, and a conveying screw following the storage container/the conveying line at a transfer opening. The device also includes an extruder following the conveying screw and an air outlet arranged opposite the transfer opening and directed at this opening. In a method for operating the device, an air stream is aligned with the transfer opening. The strength and/or the direction of the air stream is adjusted or controlled as a function of a load on the extruder.
B02C 25/00 - Control arrangements specially adapted for crushing or disintegrating
B29C 48/14 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration
B29C 48/25 - Component parts, details or accessoriesAuxiliary operations
B29B 17/00 - Recovery of plastics or other constituents of waste material containing plastics
B02C 18/14 - Disintegrating by knives or other cutting or tearing members which chop material into fragmentsMincing machines or similar apparatus using worms or the like with rotating knives within horizontal containers
B29C 48/39 - Plasticisers, homogenisers or feeders comprising two or more stages a first extruder feeding the melt into an intermediate location of a second extruder
An installation and a method for treating a plastic melt includes a reactor that has a reactor housing consisting of first and second reactor housing parts, a mixing element being arranged in the second reactor housing part and mounted thereupon so as to rotate about a rotational axis. The reactor, together with a discharge device and with at least one weighing device connected between these, is supported on a contact area.
B29B 7/74 - MixingKneading using other mixers or combinations of dissimilar mixers
B29B 7/42 - MixingKneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix
B29B 7/40 - MixingKneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
B01F 7/08 - Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with helices
B01F 7/10 - Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with rotary discs
The invention relates to a device (1a..1g) for processing thermoplastic material, comprising a storage container (2) / a conveying line (11) for pieces of plastic particles and a conveying screw (3) connected thereto. The device further comprises (1a.. 1g) an extruder (4) which connects to the conveying screw (3), and a temperature control device (7) arranged in the course of the conveying screw (3). In addition, a temperature sensor (8, 8a, 8b) is arranged in the course of the conveying screw (3) / the extruder (4), and/or means (10) are provided for detecting a load of a drive (6) of the extruder (4). Finally, the device (1a..1g) comprises means for influencing the temperature control device (7) and a control/regulation unit (9) which is connected to the at least one temperature sensor (8, 8a, 8b) and/or the influencing means of the temperature control device (7). Furthermore, an operating method for the device (1a.. 1g) is specified, in which the pieces of plastic particles are temperature-controlled by a temperature control device (7) in the course of the conveying screw (3).
The invention relates to a device (1a..1i) for processing thermoplastic plastic which comprises a storage container (2) for receiving pieces of plastic particles or a conveying line (14) for conveying the pieces of plastic particles, and to a conveying screw (3) connected to the storage container (2)/the conveying line (14) at a transfer opening (A). The device (1a..1i) also has an extruder (4) which connects to the conveying screw (3), and an air outlet (7) situated opposite the transfer opening (A) and directed at this opening. The invention also relates to a method for operating the device (1a..1i) in which an air stream is aligned with the transfer opening (A). The strength and/or the direction of the air stream is controlled depending on a load level of the extruder (4).
B29C 47/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor (extrusion blow-moulding B29C 49/04)
B02C 18/14 - Disintegrating by knives or other cutting or tearing members which chop material into fragmentsMincing machines or similar apparatus using worms or the like with rotating knives within horizontal containers
B02C 23/26 - Passing gas through crushing or disintegrating zone characterised by point of gas entry or exit or by gas flow path
B29B 17/00 - Recovery of plastics or other constituents of waste material containing plastics
12.
DEVICE AND METHOD FOR PROCESSING THERMOPLASTIC PLASTIC HAVING AN IMPROVED COMMINUTION/CONVEYING DEVICE
The invention relates to a device (1a..1i) for processing thermoplastic plastic which comprises a storage container (2) for receiving pieces of plastic particles or a conveying line (24) for conveying the pieces of plastic particles, and to a combined comminution/conveying device (3) connected to the storage container (2)/the conveying line (24). The device (1a..1i) also comprises an extruder (4) which connects to the combined comminution/conveying device (3). The combined comminution/conveying device (3) comprises a comminuting shaft (5) and a separately rotatable conveying screw (7), the comminuting shaft (5) having a higher comminuting effect per revolution than the conveying screw (7). An overlapping region (B) between the comminuting shaft (5) and the conveying screw (7) transversely to the axis of the comminuting shaft (5) is less than 75%. The invention also relates to a method for operating the device (1a..1i) in which the comminuting shaft (5) and the conveying screw (7) are rotated separately from one another and the plastic particles are comminuted to a larger degree by the comminuting shaft (5) than by the conveying screw (7).
B02C 18/14 - Disintegrating by knives or other cutting or tearing members which chop material into fragmentsMincing machines or similar apparatus using worms or the like with rotating knives within horizontal containers
The invention relates to a treatment system (1) for plastic material, comprising a feeding device (4), a treatment unit (2), and a plasticizing device (3) arranged downstream thereof. The treatment unit (2) has a comminuting device (5) and a conveying device (6) which are received in a housing (7). An outlet opening (10) is arranged in an end region of a conveying section (8) of the conveying device (6). The plasticizing device (3) has an extruder screw (11) which is received in an extruder housing (12). The extruder housing (12) is equipped with a filling opening (15) which is arranged so as to directly adjoin the outlet opening (10) arranged in the housing (7). In the region of the outlet opening (10), the conveying device (6) has a circulating direction which runs in the opposite direction of the conveying direction of the extruder screw (11).
B29B 17/00 - Recovery of plastics or other constituents of waste material containing plastics
B02C 18/14 - Disintegrating by knives or other cutting or tearing members which chop material into fragmentsMincing machines or similar apparatus using worms or the like with rotating knives within horizontal containers
The invention relates to an installation and a method for treating a plastic melt, comprising a reactor that has a reactor housing consisting of first and second reactor housing parts; a mixing element being arranged in the second reactor housing part and mounted thereupon so as to rotate about a rotational axis; and said reactor, together with a discharge device and with at least one weighing device connected between these, being supported on a contact area.
B29B 7/40 - MixingKneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
B29B 7/42 - MixingKneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix
The invention relates to an installation (1) and a method for treating a plastic melt, comprising a reactor (2) that has a reactor housing (3) consisting of first and second reactor housing parts (4, 5); a mixing element (12) being arranged in the second reactor housing part (5) and mounted thereupon so as to rotate about a rotational axis (13); and said reactor, together with a discharge device (19) and with at least one weighing device (21) connected between these, being supported on a contact area.
B29B 7/40 - MixingKneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
B29B 7/42 - MixingKneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix
The invention relates to an installation (1) and a method for treating a plastic melt, comprising a reactor (2) that has a reactor housing (3) consisting of first and second reactor housing parts (4, 5); a mixing element (12) being arranged in the second reactor housing part (5) and mounted thereupon so as to rotate about a rotational axis (13); and said reactor, together with a discharge device (19) and with at least one weighing device (21) connected between these, being supported on a contact area.
B29B 7/40 - MixingKneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
B29B 7/42 - MixingKneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix
37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
Goods & Services
Machine tools; machines, namely machines for the recycling
of plastics; parts of machines for the recycling of
plastics; machines and apparatus for the plastics industry
and/or process engineering, in particular machines and
apparatus for the treatment and processing of plastics and
laboratory and pilot installations for the treatment and
processing of plastics; rolling mills, in particular testing
rolling mills, measuring rolling mills and/or rubber rolling
mills; calenders, in particular sheeting calenders,
dual-roller calenders, laminating calenders, moulding
calenders for tablets and/or polishing calenders; presses,
in particular plate presses, test presses, de-airing
pugmills and/or high temperature presses; kneaders,
extrusion presses and extrusion installations, in particular
double-shafted kneaders, twin-screw extruders, test
extruders, measuring extruders, rubber extruders,
pelletizers, in particular strand pelletisers and die-face
pelletisers, pipe extrusion installations, co-extrusion
installations, cast-film installations, extrusion coating
installations and/or blown film installations; stretch
installations; machines for the production of extrudates for
medical purposes; machines for the manufacturing of medical
compounds, moulding calenders, catheter tubes and/or
infusion bags. Rebuilding machines that have been worn or partially
destroyed; machinery installation, maintenance and/or
repair; renovation and servicing of machinery. Treatment of materials, namely recycling; recycling
services; waste treatment; recycling of waste and trash, in
particular for plastics.
17 - Rubber and plastic; packing and insulating materials
40 - Treatment of materials; recycling, air and water treatment,
Goods & Services
Machine tools; machines, namely machines for the recycling
of plastics; parts of machines for the recycling of
plastics; machines and apparatus for the plastics industry
and/or process engineering, in particular machines and
apparatus for the treatment and processing of plastics and
laboratory and pilot installations for the treatment and
processing of plastics; rolling mills, in partticular
testing rolling mills, measuring rolling mills and/or rubber
rolling mills; calenders, in particular sheeting calenders,
dual-roller calenders, laminating calenders, moulding
calenders for tablets and/or polishing calenders; presses,
in particular plate presses, test presses, de-airing
pugmills and/or high temperature presses; kneaders,
extrusion presses and extrusion installations, in particular
double-shafted kneaders, twin-screw extruders, test
extruders, measuring extruders, rubber extruders,
pelletizers, in particular strand pelletisers and die-face
pelletisers, pipe extrusion installations, co-extrusion
installations, cast-film installations, extrusion coating
installations and/or blown film installations; stretch
installations; machines for the production of extrudates for
medical purposes. Unprocessed and semi-processed materials, not adapted for a
specific use, included in this class, namely polyester,
mineral fibres, elastomers, synthetic and composite
materials, plastic film; semi-processed plastic substances;
semi-finishes products, namely foils of plastic materials
and/or foils of plastic; fleeces of plastic raw fibers (for
insulation). Treatment of materials, namely recycling; recycling
services; waste treatment; recycling of waste and trash, in
particular for plastics.
37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
Goods & Services
machines, namely, machines for the recycling of plastics; machines and apparatus for the plastics industry and/or process engineering, in particular machines and apparatus for the treatment and processing of plastics; rolling mills, in particular testing rolling mills, measuring rolling mills and/or rubber rolling mills; machines in the nature of calenders, in particular sheeting calenders, dual-roller calenders, laminating calenders, moulding calenders for tablets and/or polishing calenders; industrial machine presses, in particular plate presses, test presses, de-airing pugmills and high temperature presses; kneading machines for industrial purposes, namely, double-shafted kneaders; extrusion moulding machines, namely, metal extrusion presses, twin-screw extruders, test extruders, measuring extruders, rubber extruders; machine tools in the nature of pelletizers, in particular strand pelletizers and die-face pelletizers; machines for the production of extrudates for medical purposes; machines for the manufacturing of medical compounds, moulding calenders, catheter tubes and/or infusion bags Rebuilding machines that have been worn or partially destroyed; machinery installation, maintenance and/or repair; renovation and servicing of machinery Treatment of materials, namely, recycling of all types of PE, PP, PET, PA, EVOH and other thermoplastics with the exception of PVC, either produced by polymerization or polycondensation; recycling services; waste treatment; recycling of waste and trash, in particular for plastics
40 - Treatment of materials; recycling, air and water treatment,
07 - Machines and machine tools
17 - Rubber and plastic; packing and insulating materials
Goods & Services
[ Treatment of materials, namely, recycling of all types of PE, PP, PET, PA, EVOH and other thermoplastics with the exception of PVC, either produced by polymerization or polycondensation; recycling services; waste treatment; recycling of waste and trash, in particular for plastics ] machines, namely, machines for the recycling of plastics; machines and apparatus for the plastics industry and/or process engineering, in particular machines and apparatus for the treatment and processing of plastics; [ rolling mills, in particular testing rolling mills, measuring rolling mills and/or rubber rolling mills; machines in the nature of calenders, in particular ] sheeting calenders, dual-roller calenders, [ laminating calenders, moulding calenders for tablets and/or polishing calenders; industrial machine presses, in particular plate presses, test presses, de-airing pugmills and/or high temperature presses; kneading machines for industrial purposes, namely, double-shafted kneaders; ] extrusion moulding machines, namely, [ metal extrusion presses, ] twin-screw extruders, test extruders, measuring extruders, [ rubber extruders; ] machine tools in the nature of pelletizers, in particular strand pelletizers [ and die-face pelletizers; machines for the production of extrudates for medical purposes ] [ Semi-processed plastic substances; semi-finished products made of thermoplastics produced either in polymerization or polycondensation, namely, PET-preforms, post consumer plastic flakes from plastic washing lines; plastic raw fibers for insulation ]
22.
Method and apparatus for increasing the intrinsic viscosity of a polycondensate melt
In a method and an apparatus for increasing the intrinsic viscosity of a polycondensate melt at negative pressure, the melt enters a chamber, in which a negative pressure of less than 20 mbar prevails, through a perforated plate or a screen having openings with a diameter of less than 0.5 mm. The melt passes through this chamber in free fall in thin threads and remains in a reservoir beneath the chamber for at least one minute. The melt is moved constantly in the reservoir, and discharged from the reservoir, by a helical mixing and discharge part.
B29B 9/06 - Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
B29B 7/42 - MixingKneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix
B29B 7/60 - Component parts, details or accessoriesAuxiliary operations for feeding, e.g. end guides for the incoming material
B29C 47/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor (extrusion blow-moulding B29C 49/04)
C08G 85/00 - General processes for preparing compounds provided for in this subclass
C08J 11/06 - Recovery or working-up of waste materials of polymers without chemical reactions
In a method and an apparatus for increasing the intrinsic viscosity of a polycondensate melt at negative pressure, the melt enters a chamber (25), in which a negative pressure of less than 20 mbar prevails, through a perforated plate or a screen (16) having a plurality of openings (26) with a diameter of less than 0.5 mm. The melt passes through this chamber (25) in free fall in thin threads and remains in a reservoir (19) beneath the chamber (25) for at least one minute. The melt is moved constantly in the reservoir (19), and discharged from the reservoir (19), by a helical mixing and discharge part (27).
In a method and an apparatus for increasing the intrinsic viscosity of a polycondensate melt at negative pressure, the melt enters a chamber (25), in which a negative pressure of less than 20 mbar prevails, through a perforated plate or a screen (16) having a plurality of openings (26) with a diameter of less than 0.5 mm. The melt passes through this chamber (25) in free fall in thin threads and remains in a reservoir (19) beneath the chamber (25) for at least one minute. The melt is moved constantly in the reservoir (19), and discharged from the reservoir (19), by a helical mixing and discharge part (27).
A device for removing impurities from a polymer melt has a chamber (25) which is under negative pressure and has at least one opening (26), through which the polymer melt enters the chamber (25). The polymer melt falls down through the chamber (25) in the form of thin filaments of melt and impurities such as water diffuse to the surface and evaporate as a result of the temperature and the negative pressure.
37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
Goods & Services
Machines and machine tools; fittings for machines; machines
for recycling plastics. Reconditioning of machines that are worn or partially
destroyed; machinery installation, maintenance and repair. Recycling of waste and rubbish; in particular for plastics;
treatment of materials.
37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
Goods & Services
Machines and machine tools; fittings for machines; machines for recycling plastics. Reconditioning of machines that are worn or partially destroyed; machinery installation, maintenance and repair. Recycling of waste and rubbish; in particular for plastics; treatment of materials.
