Techniques recycle plastics in multiple successive process steps. A polymer, preferably a recyclable material, is melted using a discharge extruder, filtered using a first filter device under a positive pressure atmosphere, filtered and degassed using a degassing device, and discharged using a discharge extruder. The degassing device has at least one filter element and a vacuum chamber with a negative pressure atmosphere for filtering and degassing purposes, wherein the plastic melt can be conducted into the negative pressure atmosphere of the vacuum chamber through the filter element.
An extruder-mixer has a stator and a rotor arranged coaxially to the stator. The rotor is mounted rotatably relative to the stator. The stator, at least in portions, is arranged inside a volume spanned by the rotor. Such an extruder-mixer may be with an extruder. An extruder screw may be mounted in a screw housing of the extruder and coupled to a screw drive of the extruder.
B29C 48/36 - Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
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
B29C 48/67 - Screws having incorporated mixing devices not provided for in groups
3.
APPARATUS FOR PRODUCING SYNTHETIC THREADS FROM RECYCLED PLASTIC WASTE
An apparatus for producing synthetic threads from recycled plastic waste comprises a pre-treatment device for pre-treating textile plastic waste; a melting device for melting pre-treated plastic waste to form a plastic melt; and a spinning device for extruding threads from a plastic melt produced by the melting device.
A method and an apparatus are directed to stretching plastic films. The plastic film is held at at least two opposite longitudinal sides by a plurality of holding means and the holding means are guided along stretching paths at both longitudinal sides of the plastic film. In order to increase productivity, several plastic films are held, mutually spaced one on top of the other, by the holding means and are simultaneously stretched. The holding means, in terms of their number and/or design, are constructed and arranged such that several plastic films can be simultaneously stretched mutually spaced one on top of the other.
An extruder-mixer with a stator and a rotor arranged coaxially with respect to the stator. The rotor is mounted rotatably in relation to the stator. The stator is at least partly arranged within a volume defined by the rotor. The rotor has a rotor cage with a multiplicity of apertures. The apertures are elongated in a longitudinal direction. The longitudinal direction thereof is skewed with respect to an axis of rotation of the rotor.
B29B 7/40 - MixingKneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
B29C 48/36 - Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
B01F 27/27 - Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices
B01F 27/271 - Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed radially between the surfaces of the rotor and the stator
B01F 27/272 - Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed axially between the surfaces of the rotor and the stator, e.g. the stator rotor system formed by conical or cylindrical surfaces
B29C 48/67 - Screws having incorporated mixing devices not provided for in groups
The invention relates to an extruder-mixer (10) having a stator (1) and a rotor (3) arranged coaxially to the stator (1), the rotor (3) being mounted such that it can rotate relative to the stator (1), and at least some parts of the stator (1) are arranged inside a volume (RV) spanned by the rotor (2).
The invention relates to a method and an apparatus for stretching plastic films, the plastic film being held at at least two opposite longitudinal sides by a plurality of holding means and the holding means being guided along stretching paths at both longitudinal sides of the plastic film. In order to increase productivity, according to the invention, several plastic films are held, mutually spaced one on top of the other, by the holding means and are simultaneously stretched. For this purpose, the holding means, in terms of their number and/or design, are conceived such that several plastic films can be simultaneously stretched mutually spaced one on top of the other.
Techniques recycle plastics in multiple successive process steps. A polymer, preferably a recyclable material, is melted using a discharge extruder, filtered using a first filter device under a positive pressure atmosphere, filtered and degassed using a degassing device, and discharged using a discharge extruder. The degassing device has at least one filter element and a vacuum chamber with a negative pressure atmosphere for filtering and degassing purposes, wherein the plastic melt can be conducted into the negative pressure atmosphere of the vacuum chamber through the filter element.
Techniques involve cleaning a polymer melt, which allow volatile foreign substances and solid foreign substances to be removed from the polymer melt. Such techniques involve a filter element and a vacuum of a vacuum chamber. The polymer melt is fed through the filter element into the vacuum of the vacuum chamber, The filter element binds the solid foreign substances and the vacuum chamber takes up the volatile foreign substances.
B01D 29/52 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
B29B 13/10 - Conditioning or physical treatment of the material to be shaped by grinding, e.g. by trituratingConditioning or physical treatment of the material to be shaped by sievingConditioning or physical treatment of the material to be shaped by filtering
The invention relates to a method and a device for recycling plastics in multiple successive process steps. A polymer, preferably a recyclable material, is melted using a discharge extruder, filtered using a first filter device under a positive pressure atmosphere, filtered and degassed using a degassing device, and discharged using a discharge extruder. The degassing device has at least one filter element and a vacuum chamber with a negative pressure atmosphere for filtering and degassing purposes, wherein the plastic melt can be conducted into the negative pressure atmosphere of the vacuum chamber through the filter element.
B01D 29/23 - Supported filter elements arranged for outward flow filtration
B01D 29/52 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
The invention relates to a method and an apparatus for melt spinning filaments from a polyester. According to the invention, a plurality of filaments is extruded from a melt flow by means of a spinning device. The melt flow is produced from a PET melt of a melt producing device and from a recycled PET melt of a recycling plant.
The invention relates to a method for controlling a melt spinning process for producing threads and to a melt spinning apparatus for producing synthetic threads. In this case a plurality of process parameters of a plurality of process steps of melt generation, filament extrusion, thread treatment and thread winding are monitored. Moreover, at least one of a plurality of condition parameters is monitored on each of the threads. The respective actual values of the condition parameters and the respective actual values of the process parameters are jointly analysed. In order to facilitate a targeted intervention in the process, at least one target value of one of the process parameters is determined from the actual values of the condition parameters and the actual values of the process parameters and the relevant process step is changed over automatically to setting the process parameter. For carrying out the process steps the melt spinning apparatus has a melt generating device, a melt spinning device, a treatment device and a winding device. For controlling the devices a machine controller is provided, which is connected to a monitoring device for receiving condition parameters and to the devices for carrying out the process steps for receiving process parameters. In this case the machine controller has a changeover module in order from the actual values of the condition parameters and the actual values of the process parameters to generate at least one control command for automatic changeover of one of the process steps of one of the devices to a target value of one of the process parameters.
D01D 13/00 - Complete machines for producing man-made threads
G05B 13/02 - Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric
13.
Method for a combined cell digestion and extraction of oil-containing seeds
Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. (Germany)
Inventor
Boerner, Gunter
Brodkorb, Sebastian
Pufky-Heinrich, Daniela
Franke, Sandra
Polage, Sarah
Zang, Marcus
Abstract
The invention relates to a method of combined cell digestion and extraction of oil-containing seeds having an oil content of >30% by mass, wherein production of a slurry from the oilseeds and ethanol is followed by a combination cell digestion with a subsequent ethanolic extraction, wherein the smaller portion of the oil of the oilseed and the alcohol-soluble constituents present therein are dissolved in the ethanol in accordance with the dissolution capacity of the ethanol for the oil and the alcohol-soluble constituents, a greater portion of the oil is displaced from the seed cells by the ethanol, forming a free oil phase in the ethanol. The free oil phase is removed and, according to the invention, has semi-raffinate quality, reducing the complexity of refining as an advantage of the method of the invention.
A23K 10/37 - Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hayAnimal feeding-stuffs from material of fungal origin, e.g. mushrooms from waste material
C11B 1/04 - Pretreatment of vegetable raw material
The invention relates to a method and a device for cleaning a polymer melt, which allow volatile foreign substances and solid foreign substances to be removed from said polymer melt, characterised by a filter element (4) and a vacuum of a vacuum chamber (2), the polymer melt being fed through the filter element into the vacuum of the vacuum chamber (2), said filter element (4) binding the solid foreign substances and the vacuum chamber (2) taking up the volatile foreign substances.
FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN, FORSCHUNG E. V. (Germany)
Inventor
Börner, Gunter
Brodkorb, Sebastian
Pufky-Heinrich, Daniela, Dr.
Franke, Sandra
Polage, Sarah
Zang, Marcus
Abstract
The invention relates to a method of combined cell digestion and extraction of oil-containing seeds having an oil content of > 30% by mass, wherein production of a slurry from the oilseeds and ethanol is followed by a combination of cell digestion with a subsequent ethanolic extraction, wherein the smaller portion of the oil present in the seed cells of the oilseed and the alcohol-soluble constituents present therein are transferred to the ethanol in accordance with the dissolution capacity of the ethanol for the oil and the alcohol-soluble constituents, and another, greater portion of the oil is displaced from the seed cells of the oilseed by the ethanol, forming a free oil phase in the ethanol. The free oil phase is removed and, according to the invention, has semi-raffinate quality. The complexity of refining that has been reduced thereby is a result and an advantage of the method of the invention.
FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V. (Germany)
B+B ENGINEERING GMBH (Germany)
Inventor
Borner, Gunter
Brodkorb, Sebastian
Pufky-Heinrich, Daniela, Dr.
Franke, Sandra
Polage, Sarah
Zang, Marcus
Abstract
The invention relates to a method of combined cell digestion and extraction of oil-containing seeds having an oil content of > 30% by mass, wherein production of a slurry from the oilseeds and ethanol is followed by a combination of cell digestion with a subsequent ethanolic extraction, wherein the smaller portion of the oil present in the seed cells of the oilseed and the alcohol-soluble constituents present therein are transferred to the ethanol in accordance with the dissolution capacity of the ethanol for the oil and the alcohol-soluble constituents, and another, greater portion of the oil is displaced from the seed cells of the oilseed by the ethanol, forming a free oil phase in the ethanol. The free oil phase is removed and, according to the invention, has semi-raffinate quality. The complexity of refining that has been reduced thereby is a result and an advantage of the method of the invention.
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Machines for the production of plastic films and their
machine parts, included in this class; machines for the
production of synthetic fibres and filaments and their
machine parts, included in this class; machines for the
production of tires and tire parts and their machine parts,
included in this class; double twisting and spiral wrapping
machines for the production of steel cord and their machine
parts, included in this class; special machines for the
chemical and plastics processing industry and their machine
parts, included in this class; extruder for thermoplastic
materials; filter for thermoplastic materials; planing
roller mills for thermoplastic materials. Installation works, installations and repairs of machines
and machine components in the field of extrusion technology;
installation works, installations and repairs of machines
and machine components in the field of special machines. Engineering services and technical consulting in the field
of machine design and extrusion technology; design services
in the field of plant and special engineering.
Machines for the production of plastic films and their machine parts, included in this class, namely, structural parts thereof; machines for the production of synthetic fibres and filaments and their machine parts, included in this class, namely, structural parts thereof; [machines for the production of tires and tire parts and their machine parts, included in this class, namely, structural parts thereof; double twisting and spiral wrapping machines for the production of steel cord and their machine parts, included in this class, namely, structural parts thereof; ]special machines for the chemical and plastics processing industry and their machine parts, included in this class, namely, structural parts thereof; extruder for thermoplastic materials; filters for filtration of thermoplastic melt[; planing roller mills for milling thermoplastic materials, namely, a machine that shapes thermoplastic materials]
Machines for the production of plastic films and their
machine parts, included in this class; machines for the
production of synthetic fibers and filaments and their
machine parts, included in this class; machines for the
production of tires and tire parts and their machine parts,
included in this class; double twisting- and spiral wrapping
machines for the production of steel cord and their machine
parts, included in this class; special machines for the
chemical and plastics processing industry and their machine
parts, included in this class; extruder for thermoplastic
materials; filter for thermoplastic materials; planing
roller mills for thermoplastic materials.
