METHOD FOR ADAPTING A PRESSING FORCE OF A GRANULATING MACHINE, COMPUTER PROGRAM PRODUCT, CONTROLLER, GRANULATING MACHINE, AND METHOD FOR GRANULATING MATERIAL STRANDS
A method for adapting a pressing force of at least one blade of a granulating machine for granulating material strands, such as plastic material strands. The granulating machine has a force generating means for pushing the at least one blade with the pressing force against a perforated plate of the granulating machine. The method includes the steps of specifying a blade pressing force; determining a hydrodynamic force, such as axial pressure force, which is generated by rotation of the at least one blade and acts on the at least one blade towards the perforated plate; determining the pressing force on the basis of the specified blade pressing force and the determined hydrodynamic force; and providing the determined pressing force to adapt the pressing force prevailing in the granulating machine. Also disclosed are a corresponding computer program product, a controller, a granulating machine, and a method for granulating material strands.
A processing facility (1) comprises a processing screw machine (4) for processing dewatered rubber (7) and styrene acrylonitrile, a dewatering screw machine (2) for dewatering wet rubber (6) and providing the dewatered rubber (7), and a feed device (3) for feeding the dewatered rubber (7) into the processing screw machine (4). Because the dewatering and the processing are mechanically decoupled, simple, flexible and efficient processing can be achieved.
A hosing cleaning device for cleaning a housing of a screw machine comprises a support unit displaceable relative to the housing, and at least one housing cleaning unit arranged at the support unit for cleaning an inner wall of the housing, wherein the least one housing cleaning unit can be reversibly inserted into the housing. An associated shaft cleaning device for cleaning at least one treatment element shaft of the screw machine comprises a cleaning chamber, in which the at least one treatment element shaft can be arranged, and at least one shaft unit arranged in the cleaning chamber.
B08B 9/045 - Cleaning the internal surfacesRemoval of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes the cleaning devices being rotated while moved
B08B 9/043 - Cleaning the internal surfacesRemoval of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
4.
CLEANING DEVICE FOR CLEANING A SYSTEM COMPONENT, CLEANING SYSTEM, ARRANGEMENT AND CONVEYOR SYSTEM
Cleaning apparatus for cleaning an installation component of a conveyor system for conveying bulk material, comprising: at least one cleaning tool for cleaning at least a part of the installation component, and a carrier section for fastening the cleaning apparatus to the installation component, to a transport device, and/or to an external object, wherein the cleaning apparatus is designed to independently initiate a cleaning process for cleaning at least a part of the installation component, and a cleaning system including such a cleaning apparatus, and a service station, an assembly comprising the cleaning apparatus, and the installation component and a conveyor system.
B65G 45/26 - Cleaning devices for gathering residue after cleaning
A47L 9/00 - Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating actionStoring devices specially adapted to suction cleaners or parts thereofCarrying-vehicles specially adapted for suction cleaners
A47L 9/28 - Installation of the electric equipment, e.g. adaptation or attachment to the suction cleanerControlling suction cleaners by electric means
5.
METHOD AND RECYCLING PLANT FOR RECYCLING PLASTIC WASTE MATERIAL
In a method for recycling plastic waste material, plastic waste material is supplied to a first screw machine and melted therein to form a plastic waste material melt. The plastic waste material melt is supplied to a second multi-shaft screw machine by means of a supply device and is processed therein together with plastic raw material to form a plastic material melt.
B29B 7/46 - MixingKneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
A cellular wheel sluice for bulk material comprises a housing having an interior, an extraction side cover releasably fastened to the housing, a cellular wheel which is arranged in an operational position in the housing so that it can be driven in rotation about a longitudinal axis and which is held on the extraction side cover, an extraction device for displacing the cellular wheel between the operational position and an extracted position, wherein the extraction device has a guide unit for guided displacement of the cellular wheel along an extraction direction parallel to the longitudinal axis, and an extraction drive arranged fixed to the housing and coupled to the extraction side cover for automatically driven displacement of the extraction side cover with the cellular wheel.
Method for processing plastics material, comprising the following steps: feeding the plastics material into a screw machine by means of a feeding device; plasticizing the fed plastics material by means of the screw machine to form a polymer melt; and processing the polymer melt by means of the screw machine, wherein the viscosity of the polymer melt is set by means of the screw speed of the screw machine, and device for processing plastics material.
B29B 7/48 - MixingKneading 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
B29K 23/00 - Use of polyalkenes as moulding material
B29K 105/00 - Condition, form or state of moulded material
A device for processing plastics material, comprising: a screw machine having at least one treatment element shaft for plasticizing the plastics material, stored in a housing, to form a polymer melt, wherein the screw machine has a plasticizing zone, a compounding zone, and an accumulation zone arranged between the plasticizing zone and the compounding zone, having at least one accumulation element which holds the polymer melt, at least one melt channel which bridges the accumulation zone and connects the plasticizing zone and the compounding zone to one another.
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 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
9.
METHOD AND DEVICE FOR PROCESSING PLASTICS MATERIAL
A method for processing plastics material, in particular thermoplastic material, such as plastics recycling material and/or plastics waste, is disclosed comprising the following steps: supplying the plastics material into a screw-conveyor machine); supplying an additive for converting organic chlorides into inorganic chlorides into the screw-conveyor machine; plasticizing the supplied plastics material with the screw-conveyor machine to form a plastics melt, and mixing the plastics melt with the supplied additive with the screw-conveyor machine to form a mixture, wherein at least some of the organic chlorides contained in the plastics melt are converted into inorganic chlorides with the additive. A corresponding device for processing plastics material, in particular thermoplastic material, such as plastics recycling material and/or plastics waste, using a screw-conveyor machine is also disclosed.
B29C 48/25 - Component parts, details or accessoriesAuxiliary operations
B29C 48/375 - Plasticisers, homogenisers or feeders comprising two or more stages
B29C 48/40 - 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, e.g. twin screw extruders
A device for processing plastics material, comprising: a multi-shaft screw machine, in particular a twin-shaft screw machine, having at least two treatment element shafts mounted in a housing for plasticizing the supplied plastics material to form a plastics melt, wherein the multi-shaft screw machine has a plasticizing zone, a discharge zone, and a backup zone arranged between the plasticizing zone and the discharge zone, having at least one backup element which holds back the plastics melt; at least one melt channel which bridges across the backup zone, connecting the plasticizing zone and the discharge zone to one another, and at least one melt filter device for filtering the plastics melt, arranged and active in the melt channel.
A recovery system for recovering plastic recycling material includes at least one rinsing chamber designed for heating and rinsing the plastic recycling material and having a rinsing air feed for feeding heated rinsing air into the at least one rinsing chamber; and at least one cooling chamber designed for cooling the plastic recycling material and having a cooling air feed for feeding cooling air into the at least one cooling chamber. The at least one cooling chamber is connected downstream of the at least one rinsing chamber and is fluid-connected to the rinsing air feed via an exhaust air line in such a manner that the exhaust air heated in the at least one cooling chamber by the plastic recycling material can be fed into the rinsing air feed of the at least one rinsing chamber. Use of such recovery system and method for recovering plastic recycling material.
A process and an arrangement for production of an electrode suspension are described. Formulation constituents of the electrode suspension are provided and mixed to give the electrode suspension. At least one optical measurement is conducted on the electrode suspension, in each case by detecting a spectrum of the electrode suspension over at least one subregion of the at least one of ultraviolet, visible and infrared frequency range. The at least one optical measurement is evaluated. The further treatment of the electrode suspension depends on the evaluation.
G01N 21/33 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using ultraviolet light
G01N 21/3563 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing solidsPreparation of samples therefor
13.
FEEDING SCREW MACHINE FOR FEEDING A PROCESSING SCREW MACHINE
A feeding screw machine for feeding a processing screw machine comprises a housing with at least two housing bores formed therein and screw shafts rotatably arranged in the at least two housing bores. The at least two housing bores and the at least two screw shafts define a free volume in a respective cross-sectional plane, which decreases monotonically at least in some regions for continuous compression of a material in a conveying direction. This enables an improved supply of material with a low bulk density.
A processing system serves to process a polymer-filler composition, especially a polyvinylchloride-filler composition, and comprises a multi-shaft screw machine, a first feed device and a second feed device. By means of the first feed device, a polymer and a first proportion of a mineral filler are fed into the multi-shaft screw machine. Subsequently, by means of the second feed device, a second proportion of the mineral filler is fed into the multi-shaft screw machine. The gradual mixing-in of the mineral filler achieves a high proportion of the mineral filler in der polymer-filler composition.
B29B 7/46 - MixingKneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
B29B 7/60 - Component parts, details or accessoriesAuxiliary operations for feeding, e.g. end guides for the incoming material
C08J 3/20 - Compounding polymers with additives, e.g. colouring
15.
PROCESSING SYSTEM AND METHOD FOR PROCESSING AN ENERGY STORAGE MATERIAL
In a processing system for processing an energy storage material, a pressure buildup device is disposed downstream of a mixing device. The mixing device serves for the processing of the energy storage material. By means of the pressure buildup device, a pressure of the energy storage material is increased for a subsequent shaping. Because the mixing device and the pressure buildup device are separate from one another, a good mixing effect and a good pressure buildup effect are achieved. The energy storage material can thus be processed in a high quality in a simple and reliable manner. The energy storage material serves in particular for the production of bipolar plates for fuel cells and/or for the production of galvanic energy storage devices.
B01F 27/1143 - Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections screw-shaped, e.g. worms
B01F 27/723 - Mixers with rotary stirring devices in fixed receptaclesKneaders with stirrers rotating about a horizontal or inclined axis with helices or sections of helices with two or more helices in the same receptacle the helices intermeshing to knead the mixture
B01F 27/724 - Mixers with rotary stirring devices in fixed receptaclesKneaders with stirrers rotating about a horizontal or inclined axis with helices or sections of helices with a single helix closely surrounded by a casing
B29B 7/46 - MixingKneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
16.
TREATMENT ELEMENT FOR TREATING MATERIAL BY MEANS OF A SCREW MACHINE
A treatment element for treating material by means of a screw machine comprises a conveying section and a melting section. The melting section is arranged downstream of the conveying section in a conveying direction and is connected in one piece with the conveying section. This reduces wear and increases the service life.
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
17.
APPARATUS AND METHOD FOR DETERMINING OPERATING PARAMETERS FOR DEGASSING AND/OR DEODORIZING PLASTIC PARTICLES
An apparatus for determining operating parameters for degassing and/or deodorizing plastic particles comprises at least one test chamber for degassing and/or deodorizing a test quantity of plastic particles, wherein each test chamber has a filling opening for filling the test quantity, a withdrawal opening for withdrawing bulk material, a vent opening for venting the test chamber, wherein a pressurized gas line for feeding pressurized gas and a heating element and/or a steam line for feeding steam and a steam generator are connected to a feed opening of the test chamber.
A discharge apparatus for texturing a food composition, in particular a meat substitute composition, includes a first boundary member having a first texturing surface and a second boundary member having a second texturing surface, a gap formed between the texturing surfaces, at least one feed opening for continuously feeding the food composition into the gap and at least one discharge opening for continuously discharging the food composition from the gap. The first boundary member and the second boundary member are rotatably drivable relative to each other about an axis of rotation. The first texturing surface and the second texturing surface each extend between the respective first feed opening and the at least one discharge opening radially to the axis of rotation.
A filter unit for an extruder assembly comprises a support body with a hollow cylindrical wall section and a base section connected thereto, wherein the support body has a central longitudinal axis and delimits an inner space, wherein the hollow cylindrical wall section has a plurality of through openings opening into the inner space and forms an outlet opening for a molten plastic opposite the base section; and a displacement element for displacing the molten plastic which has entered the inner space, in particular via the through openings, substantially in the direction of the central longitudinal axis, wherein the displacement element and the support body are configured and/or produced in one piece, as well as filter arrangement with a plurality of such filter units, filter changing device with at least two filter arrangements and method for producing such a filter unit.
B29C 48/691 - Arrangements for replacing filters, e.g. with two parallel filters for alternate use
B01D 29/00 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor
B01D 29/23 - Supported filter elements arranged for outward flow filtration
B01D 29/54 - 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 arranged concentrically or coaxially
B01D 29/90 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor having feed or discharge devices for feeding
B01D 29/96 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor in which the filtering elements are moved between filtering operationsParticular measures for removing or replacing the filtering elementsTransport systems for filters
B01D 29/11 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
20.
MIXING SILO FOR BULK MATERIAL, PRODUCTION PLANT WITH A MIXING SILO OF THIS TYPE AND METHOD FOR OPERATING A MIXING SILO OF THIS TYPE
A mixing silo for bulk material comprises a silo container, a mixing installation mounted in the silo container for mixing the bulk material, at least one shut-off element for shutting off the mixing installation, wherein the mixing silo has a minimum extraction rate and the silo container, with the mixing installation shut off, has a residual cross-sectional area which ensures a mass flow of the bulk material that is greater than or equal to the minimum extraction rate of the mixing silo.
B01F 25/50 - Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle
B01F 25/82 - Falling particle mixers, e.g. with repeated agitation along a vertical axis uniting flows of material taken from different parts of a receptacle or from a set of different receptacles
A processing system for bulk material comprises a processing device for the bulk material, at least one bulk material storage container for storing the bulk material, a bulk material dosing device connected to the at least one bulk material storage container for dosed discharge of the bulk material from the bulk material storage container, a bulk material downcomer connected to the bulk material dosing device for conveying the bulk material into the processing device, at least one additive feed for feeding an additive, an additive dosing device connected to the at least one additive feed for dosed discharge of the additive from the additive feed, and an additive downcomer connected to the additive dosing device for conveying the additive into the processing device, wherein the bulk material downcomer directly connects the bulk material dosing device to the processing device.
In a method for reprocessing plastic waste material, in embodiments PET waste material, the plastic waste material is dried by a flash dryer in a conveying line and then fed into a multi-shaft screw machine. In the multi-shaft screw machine, the dried plastic waste material is reprocessed. Pre-drying enables simple, energy-efficient, economical, reliable and effective reprocessing.
B29B 7/48 - MixingKneading 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
A feeding screw machine serves for feeding a processing screw machine. The feeding screw machine comprises a housing with at least one housing bore formed therein. An associated screw conveyor shaft is rotatably disposed in the at least one housing bore to convey material in a conveying direction from a supply opening to a feeding opening. An emptying opening is formed in the housing. The emptying opening enables an easy, fast and reliable emptying and cleaning of the feeding screw machine independently of the processing screw machine.
B29B 7/48 - MixingKneading 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
B01F 23/47 - Mixing liquids with liquidsEmulsifying involving high-viscosity liquids, e.g. asphalt
B01F 27/1143 - Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections screw-shaped, e.g. worms
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
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 7/80 - Component parts, details or accessoriesAuxiliary operations
B01F 101/00 - Mixing characterised by the nature of the mixed materials or by the application field
24.
Housing cleaning device for cleaning a housing of a screw machine
A housing cleaning device for cleaning a housing of a screw machine comprises a support unit displaceable relative to the housing, and at least one housing cleaning unit arranged at the support unit, for cleaning an inner wall of the housing, wherein the at least one housing cleaning unit can be reversibly inserted into the housing. An associated shaft cleaning device for cleaning at least one treatment element shaft of the screw machine comprises a cleaning chamber, in which the at least one treatment element shaft can be arranged, and at least one shaft cleaning unit arranged in the cleaning chamber.
B08B 9/045 - Cleaning the internal surfacesRemoval of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes the cleaning devices being rotated while moved
B08B 9/043 - Cleaning the internal surfacesRemoval of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
25.
Method and reprocessing installation for reprocessing film waste material
In a method for reprocessing film waste material, the film waste material is comminuted into recycling material by means of a comminuting device. The recycling material is fed by means of a feeding device in a multi-shaft screw machine. In the multi-shaft screw machine, the recycling material is plasticized into a material melt and processed into raw material. The raw material may again be fed to a production installation for the production of films.
B29B 17/00 - Recovery of plastics or other constituents of waste material containing plastics
B29B 7/14 - MixingKneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type 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
B29B 17/02 - Separating plastics from other materials
A strand pelletizer for pelletizing a strand of material comprises at least one cutting edge and an opposite cutting edge. The opposite cutting edge is arranged on a base body which is displaceable relative to a support body. The base body is independently displaceable in a linear manner relative to the support body and pivotable about at least one pivot axis. The strand pelletizer enables simple and precise adjustment of the opposite cutting edge and an associated cutting gap.
B29B 9/06 - Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
B01J 2/22 - Processes or devices for granulating materials, in generalRendering particulate materials free flowing in general, e.g. making them hydrophobic by pressing in moulds or between rollers
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
A blade head for granulating strands of material comprises a blade carrier and at least one granulating blade fastened thereto. The respective granulating blade is fastened to a positioning component which bears against the blade carrier for the rough positioning of the granulating blade. For fine positioning purposes, at least one adjusting element bears against the respective granulating blade. The blade head permits simple, user-friendly and precise assembly and setting of the respective granulating blade.
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
B26D 1/28 - Cutting through work characterised by the nature or movement of the cutting memberApparatus or machines thereforCutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis substantially perpendicular to the line of cut and rotating continuously in one direction during cutting
B26D 7/26 - Means for mounting or adjusting the cutting memberMeans for adjusting the stroke of the cutting member
B29B 9/06 - Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
B29B 7/58 - Component parts, details or accessoriesAuxiliary operations
B29C 48/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor
B29C 48/345 - Extrusion nozzles comprising two or more adjacently arranged ports, for simultaneously extruding multiple strands, e.g. for pelletising
B01J 2/20 - Processes or devices for granulating materials, in generalRendering particulate materials free flowing in general, e.g. making them hydrophobic by expressing the material, e.g. through sieves and fragmenting the extruded length
28.
Treatment element for a treatment element shaft of a screw machine, and method for producing a treatment element
A treatment element for a treatment element shaft of a screw machine comprises a main body with an outer wall, wherein the outer wall has a first wall section and a second wall section and wherein the first wall section is harder than the second wall section.
B29C 48/40 - 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, e.g. twin screw extruders
B29C 48/395 - 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
B29C 48/56 - Screws having grooves or cavities other than the thread or the channel
B29C 48/57 - Screws provided with kneading disc-like elements, e.g. with oval-shaped elements
29.
Method and device for producing a powder coating melt
In a method and a device for producing a powder coating melt, firstly a first powder coating melt is produced from a powder coating premix by a screw machine. Powder coating particles are supplied to the first powder coating melt. Then a second powder coating melt is produced by mixing the first powder coating melt and the powder coating particles by the screw machine. This allows a simple, gentle and efficient recycling of powder coating particles, in particular of so-called off-spec powder coating particles.
B05D 3/00 - Pretreatment of surfaces to which liquids or other fluent materials are to be appliedAfter-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
B05C 19/06 - Storage, supply or control of the application of particulate materialRecovery of excess particulate material
B05D 3/04 - Pretreatment of surfaces to which liquids or other fluent materials are to be appliedAfter-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
30.
Conveying system and method for pneumatically conveying plastic granulate
A conveying system for pneumatically conveying plastic granulate comprises a feed location, at which the plastic granulate is fed into a conveying line by pressurized conveying gas, a target location, in conveying connection with the feed location, for moisture contained in the conveying gas, and a condensation tempering unit, which is arranged along a section or sections of the conveying line, for making the conveying line such temperature to at least partial condensation of moisture contained in the conveying gas to form a sliding film on an internal wall of the conveying line.
B65G 53/66 - Use of indicator or control devices, e.g. for controlling gas pressure, for controlling proportions of material and gas, for indicating or preventing jamming of material
A heating apparatus for at least one housing section of a screw extruder comprises at least two heating elements which are connected to contact plugs via connection lines. For the purpose of supplying power, the heating apparatus comprises an electrical supply line which is connected to a plug-in contact distributor. The plug-in contact distributor comprises at least two plug-in contacts. The contact plugs are releasably connected to the plug-in contacts. The heating apparatus renders possible simple exchange of a heating element and is therefore easy to service. The modular construction of the heating apparatus renders possible flexible use.
H01R 13/66 - Structural association with built-in electrical component
B29C 48/80 - Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
A connecting device for connecting a screw machine to a gear mechanism comprises a housing which in regions delimits an interior. The interior serves for the arrangement of at least one shaft connection between at least one gear shaft and at least one screw shaft. The connecting device comprises at least one cleaning element for cleaning contaminants from the interior. The connecting device allows simple, efficient and reliable cleaning of contaminants from the interior.
A device for producing a dyed plastic melt and an undyed plastic melt includes a multi-shaft screw extruder, a first metering installation, a second metering installation, and a control installation, selecting between a first operating mode for producing the dyed plastic melt and a second operating mode for producing the undyed plastic melt. The first metering installation feeds an undyed plastic material through a first infeed opening into a housing of the multi-shaft screw extruder, and the second metering installation feeds at least one dyeing agent through a second infeed opening into the housing. In order for the undyed plastic melt to be produced, the plastic material is fed exclusively via the first infeed opening such that residual dyeing agent which is still located in the second metering installation or in the region of the second infeed opening does not contaminate the undyed plastic melt.
B29B 7/48 - MixingKneading 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
B29B 7/60 - Component parts, details or accessoriesAuxiliary operations for feeding, e.g. end guides for the incoming material
A diverter valve for conveying material to be conveyed, the diverter valve being cleanable using a method for CIP cleaning, comprises a housing with at least three passage openings to feed or discharge the material to be conveyed, the passage openings defining a conveying plane. The diverter valve further comprises a rotary part having an axis of rotation and an outer contour designed conically in relation to the axis of rotation at least in sections, the rotary part being arrangeable in the housing in a sealed manner, the rotary part being displaceable along the axis of rotation in an axially driven manner and being arranged such as to be drivable for rotation about the axis of rotation, the axis of rotation being oriented perpendicular to the conveying plane, a passage duct arranged in the rotary part, which—depending on a rotary position of the rotary part—connects in each case two passage openings for conveying material along the passage duct through the diverter valve. The CIP cleaning method of a diverter valve of this type comprises the pulling back and rotating the rotary part into an intermediate position to clean and then dry the diverter valve intensively. A particular feature is the embodiment configured without drainage in the housing of the diverter valve.
B08B 9/032 - Cleaning the internal surfacesRemoval of blockages by the mechanical action of a moving fluid, e.g. by flushing
F16K 11/083 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only taps or cocks with tapered plug
A cellular wheel sluice for granulate bulk product has a housing in which a cellular wheel is rotatably mounted. The housing has an inlet duct for the bulk product. At least two raised granulate roofs are arranged at the inlet duct. A granulate groove is arranged respectively at the transition between two granulate roofs and/or at the transition between one granulate roof and an inlet edge. The two granulate grooves in each case run together at an intersection point in the rotation direction of the cellular wheel.
A housing component, for the production of a housing of a multi-shaft screw machine, includes a base body, in which at least two bores interpenetrating each other are configured. The bores extend in a conveying direction through the base body and are limited transversely to the conveying direction by an inner wall. The inner wall configures at least one first wall section and at least one second wall section such that the at least one first wall section is harder than the at least one second wall section. The wall sections, for example, are generated by material application. The housing component allows for a reliable wear protection and a positive influence on the material processing.
B29C 48/685 - Barrels or cylinders characterised by their inner surfaces, e.g. having grooves, projections or threads
B29C 48/40 - 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, e.g. twin screw extruders
37.
Starting-valve throttle device for delivering a melt from a screw extruder, and system for preparing bulk material having a starting-valve throttle device of this type, and method for delivering a melt from a screw extruder by means of a starting-valve throttle device of this type
A starting-valve throttle device has a housing having a housing recess which is configured therein and in which a switching member is repositionable between an evacuation position and a delivery position. The switching member in the evacuation position configures an evacuation duct which connects an entry duct to an evacuation opening. The switching member in the delivery position configures a passage duct which connects the entry duct to a delivery duct. A throttle member is disposed in the passage duct so as to be repositionable relative to the switching member. On account thereof, a melt flowing through the passage duct is capable of being throttled in a desired manner. The starting-valve throttle device is constructed so as to be simple, compact and reliable. The operation of the starting-valve throttle device and an associated screw extruder is simple and energy-efficient.
B29C 48/40 - 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, e.g. twin screw extruders
B29C 48/25 - Component parts, details or accessoriesAuxiliary operations
B29B 7/48 - MixingKneading 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
B29B 7/58 - Component parts, details or accessoriesAuxiliary operations
A device for producing dyed plastic granulate and undyed plastic granulate includes a multi-shaft screw extruder and an underwater pelletizing installation. A granulate changeover unit which separates the dyed plastic granulate from the undyed plastic granulate is disposed in a conveying direction downstream of the underwater pelletizing installation. The dyed plastic granulate is separated from the pelletizing water via a first separator installation, and the undyed plastic granulate is separated from the pelletizing water via a second separator installation. The separator installations are disposed so as to be mutually parallel. The device enables a simple, flexible and economical selective production of the dyed plastic granulate and the undyed plastic granulate.
A device for producing a dyed plastic melt and an undyed plastic melt includes a multi-shaft screw extruder, a first metering installation, a second metering installation, and a control installation for selecting between a first operating mode for producing the dyed plastic melt and a second operating mode for producing the undyed plastic melt. The first metering installation serves for feeding an undyed plastic material through a first infeed opening into a housing of the multi-shaft screw extruder, and the second metering installation serves for feeding at least one color granulate through a second infeed opening into the housing. The plastic material is fed exclusively by way of the first infeed opening such that residual color granulate or dyeing agent contained therein, respectively, which is still located in the second metering installation or in the region of the second infeed opening does not contaminate the undyed plastic melt.
B29B 7/60 - Component parts, details or accessoriesAuxiliary operations for feeding, e.g. end guides for the incoming material
B29B 7/48 - MixingKneading 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
B29C 48/385 - Plasticisers, homogenisers or feeders comprising two or more stages using two or more serially arranged screws in separate barrels
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
B29B 7/74 - MixingKneading using other mixers or combinations of dissimilar mixers
B29B 7/40 - MixingKneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
B29B 9/12 - Making granules characterised by structure or composition
B29K 105/00 - Condition, form or state of moulded material
40.
Diverter valve for conveying a material and method for cleaning thereof
A diverter valve for conveying a material has a housing with at least three passage openings for feeding or discharging material. The passage openings define a conveying plane. The diverter valve includes a rotary part with an outer contour that is conical, at least in sections, with respect to its axis of rotation. The rotary part is arranged in a sealed manner in the housing. The rotary part can be axially displaced and rotated within the housing. The axis of rotation is perpendicular to the conveying plane. A passage conduit is arranged in the rotary part, which, depending on the rotational position of the rotary part, connects to each other two passage openings for conveying material along the passage conduit through the diverter valve. A drain opening is provided in the housing for the automatic drainage of a liquid from the housing.
F16K 11/083 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only taps or cocks with tapered plug
A screw machine includes an inductive heating device for processing of material to be processed. The inductive heating device is used to heat the material in a heating zone. In the heating zone, at least one housing portion is made of an electromagnetically transparent material at least partly, the material being non-magnetic and electrically non-conductive, whereas at least one treatment element shaft is made of an electrically conductive material at least partly. The inductive heating device includes at least one coil formed integrally with a component of the at least one housing portion, in particular in such a way as to form a hybrid component. During the processing of the material, the inductive heating device generates an alternating magnetic field that produces eddy current losses in the at least one treatment element shaft, the eddy current losses leading to a temperature increase of the at least one treatment element shaft.
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
B29C 48/54 - Screws with additional forward-feeding elements
B29C 48/57 - Screws provided with kneading disc-like elements, e.g. with oval-shaped elements
H05B 6/10 - Induction heating apparatus, other than furnaces, for specific applications
B29C 48/40 - 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, e.g. twin screw extruders
B29C 48/80 - Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
B29C 48/25 - Component parts, details or accessoriesAuxiliary operations
B29C 48/03 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor characterised by the shape of the extruded material at extrusion
B29C 45/74 - Heating or cooling of the injection unit
42.
Method for pneumatically conveying plastic pellets
When performing a method for pneumatically conveying plastic pellets, the plastic pellets are conveyed, by means of a carrier gas, through a conveyor line from a feed point to a destination with a liquid being added thereto, wherein the quantity of liquid added to the plastic pellets and/or the carrier gas is such that during conveying, the carrier gas is oversaturated with the liquid at least in sections of the conveyor line in such a way that a Froude number defining the conveying conditions in the conveyor line is smaller than 45 at any point along the conveyor line.
In a method for producing a mixture of a metallic matrix material and an additive, a metallic bulk material is molten in a multi-shaft screw machine in a heating zone thereof by means of an inductive heating device to form a metal matrix material. As the at least one housing portion of the housing of the multi-shaft screw machine is made of a non-magnetic and electrically non-conductive material at least partly in the heating zone, a high and efficient energy input for melting the metallic bulk material is achievable in a simple manner. The additive for producing the mixture is admixed to the metallic matrix material by means of treatment element shafts of the multi-shaft screw machine.
C22C 47/08 - Making alloys containing metallic or non-metallic fibres or filaments by contacting the fibres or filaments with molten metal, e.g. by infiltrating the fibres or filaments placed in a mould
B22F 3/20 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sinteringApparatus specially adapted therefor by extruding
B22F 3/00 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sinteringApparatus specially adapted therefor
C22C 1/04 - Making non-ferrous alloys by powder metallurgy
A screw machine includes an inductive heating device for the processing of material to be processed. The inductive heating device is used to heat the material in a heating zone. In the heating zone, at least one housing portion is made of an electromagnetically transparent material at least partly, the material being non-magnetic and electrically non-conductive, whereas at least one treatment element shaft is made of an electrically conductive material at least partly. During the processing of the material, the inductive heating device generates an alternating magnetic field that produces eddy current losses in the at least one treatment element shaft, the eddy current losses leading to a temperature increase of the at least one treatment element shaft. The material is heated on the at least one heated treatment element shaft, in particular until it melts. The screw machine allows a simple and efficient melting of the material, with the result that a mechanical energy input and a resulting wear of the screw machine can be reduced significantly.
B01F 7/00 - Mixers with rotary stirring devices in fixed receptacles; Kneaders
B29C 48/80 - Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
B01F 7/08 - Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with helices
B29C 45/74 - Heating or cooling of the injection unit
B29C 48/25 - Component parts, details or accessoriesAuxiliary operations
B29C 48/40 - 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, e.g. twin screw extruders
B29C 48/57 - Screws provided with kneading disc-like elements, e.g. with oval-shaped elements
B29C 48/03 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor characterised by the shape of the extruded material at extrusion
45.
Conveyor installation and method for conveying plastics granulate
A conveyor installation for plastics granulate comprises a dispatch location at which the plastics granulate with a pressurised carrier gas is dispatched into a conveyor line, a target location that in terms of conveyance is connected to the dispatch location, a humidification unit for humidifying the carrier gas and/or the plastics granulate by adding liquid, wherein a separation device for separating the humid carrier gas from the plastics granulate is provided at the target location.
Gearbox assembly for a twin-screw extruder, treatment installation for material treatment comprising a gearbox assembly of this type, and method for the startup of a treatment installation comprising a gearbox assembly of this type
A gearbox assembly for a twin-screw extruder comprises a speed change gearbox for adjusting a screw shaft speed of two screw shafts of the twin-screw extruder, a distribution gearbox allowing the screw shafts to be coupled thereto, and a speed reduction gearbox. The speed change gearbox and the speed reduction gearbox are configured such as to be separable from each other, wherein the speed change gearbox is arranged at a driving end while the speed reduction gearbox couples the speed change gearbox to the distribution gearbox. Due to the fact that the speed change gearbox is configured as an individual gearbox unit arranged at the driving end, an adjustment of the screw shaft speed is easily possible by replacing the speed change gearbox. As a result, a high flexibility and productivity are obtained in the operation of the twin-screw extruder.
F16H 1/22 - Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shaftsToothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with arrangements for dividing torque between two or more intermediate shafts
F16H 57/04 - Features relating to lubrication or cooling
B29C 47/08 - Component parts, details or accessories; Auxiliary operations
B29C 47/40 - using at least two intermeshing screws
B29B 7/46 - MixingKneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
B29B 7/58 - Component parts, details or accessoriesAuxiliary operations
47.
Device and method for the homogenisation of plastics material melts
A device, to homogenise plastics material melts, has a homogenising element with a plurality of flow channels, which differ with respect to at least one feature from the group length, cross sectional area and cross sectional shape. When flowing through the homogenising element, the plastics material melt is divided into a plurality of part streams, which, in each case, flow through an associated flow channel. When leaving the respective flow channel the part streams have different flow speeds so the plastics material melt is expanded and sheared on transition to a uniform flow. As a result, a homogenisation of the plastics material melt takes place in a simple, efficient and effective manner.
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 47/08 - Component parts, details or accessories; Auxiliary operations
B29C 47/36 - Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
B29B 7/48 - MixingKneading 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
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)
B29C 47/40 - using at least two intermeshing screws
A processing installation for the processing of bulk material has a vacuum filter insert for degassing of the bulk material. The vacuum filter insert is arranged in a casing of a screw machine downstream of the feed opening thereof and is provided with at least one filter element so that the vacuum filter insert forms a gas-permeable wall portion which defines the at least one casing bore of the screw machine. Seen in a degassing direction, a protective element comprising a plurality of through-openings is arranged upstream of the at least one filter element. The protective element acts as a granule protection for the at least one filter element and prevents granular bulk material from damaging the at least one filter element. As a result, the vacuum filter insert has a longer service life, thus ensuring a long operating time for the processing installation without interruptions.
B29B 7/48 - MixingKneading 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
B29C 47/08 - Component parts, details or accessories; Auxiliary operations
In a processing plant for producing plastics material granulate, the start-up takes place in such a way that a screw machine is firstly driven by means of a drive device and then plastics material to be processed is fed by means of a metering device into the screw machine. At least one conveying position of the plastics material in the screw machine is determined by means of a control device by evaluating at least one measuring signal. Depending on the conveying position determined, a granulating device is activated and put into operation. The method according to the invention allows a direct start-up of the processing plant without the use of a start-up valve. This ensures an easy and safe start-up of the processing plant.
B29B 7/48 - MixingKneading 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
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)
A treatment element to treat material in a multi-shaft worm machine has an outer contour with at least one outer contour portion, the associated evolute of which is a quantity of at least three points, each of the points lying outside the longitudinal axis and within the outer radius of the treatment element and two respective adjacent points having a spacing from one another, which is less than half the core radius. The treatment element ensures high flexibility during the adjustment of shear and/or extensional flows on the material to be treated.
B29B 7/48 - MixingKneading 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
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)
51.
Screw machine with at least one extension-kneading element in a flow direction
In a screw machine, to extend the material to be prepared with the latter, at least one processing element is configured as an extension-kneading element, the crest region of which has a reduced thickness compared to a flank region and, with adjacent processing elements, forms an extension channel for the material in the region between the triangles, which tapers in cross section in the flow direction of the material. Because of the tapering of the extension channel, the material is accelerated in the flow direction thereof and extended, so that high-molecular particles in the material are divided and the latter is therefore homogenized.
B29B 7/48 - MixingKneading 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
A screw machine for treating at least partially powdery bulk material has a housing with at least one housing bore and a screw arranged in the housing bore. A vacuum housing portion is provided, which is formed as a vacuum housing insert, which is releasably attached in the housing, in which a metal nonwoven is exchangeably held as a gas-permeable wall portion on a base body.
A screw machine, in particular an extruder, has a housing which has a supply opening at a supply end. At least one bore with a longitudinal axis is provided, in which a screw shaft is rotatably arranged. The drive takes place by means of a drive motor using a gear, the output shaft of which has a rotary drive connection to the screw shaft. Provided between the housing and the gear is a slide connection, which allows a displacement of the housing relative to the gear in the direction of the longitudinal axis.
An extruder has a casing with at least one bore. One screw each is arranged in the bore in a rotatably drivable manner and is provided with a screw tip adjoining a nozzle plate. A shearing tool is arranged at the screw tip directly in front of the nozzle plate and is provided with at least one arm, with a shearing gap being formed between said arm and the nozzle plate.
An extruder with a housing comprising parallel, partially inter-engaging bores and screws disposed therein is used when applying a method of feeding powdery bulk materials into such an extruder. A solid transport of powdery bulk material takes place in an inlet zone disposed downstream of a feed opening wherein said inlet zone is partially filled. The inlet zone is provided with at least one gas-permeable wall portion wherein a layer of bulk material is created on said wall portion, thereby preventing bulk material from passing through, The gas-permeable wall portion is connected to a vacuum source and to a pressure gas source. Furthermore, the gas-permeable wall portion has an inner wall which is set back with respect to the wall of the bores, thereby forming a gap with a partially annular cross section wherein a layer of the bulk material is formed in the gap.
A material processing plant comprises two screw-type extruding machines (1, 2) which are interconnected by means of a link (29). The link (29) is movable from a position of connection into an open position of release of the casing bores (12). Provision is further made for a mover (38) which acts on the link (29) for implementation of the motion.
B29B 7/46 - MixingKneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
B29C 47/50 - using at least two screws, one after the other, e.g. multi-stage plasticisers
patents
