EP4225546A1 - Vorrichtung und verfahren zur verarbeitung von schüttgut - Google Patents
Vorrichtung und verfahren zur verarbeitung von schüttgutInfo
- Publication number
- EP4225546A1 EP4225546A1 EP21777734.1A EP21777734A EP4225546A1 EP 4225546 A1 EP4225546 A1 EP 4225546A1 EP 21777734 A EP21777734 A EP 21777734A EP 4225546 A1 EP4225546 A1 EP 4225546A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bulk material
- downpipe
- additive
- processing
- processing plant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000013590 bulk material Substances 0.000 title claims abstract description 277
- 238000012545 processing Methods 0.000 title claims abstract description 97
- 238000000034 method Methods 0.000 title claims description 10
- 239000000654 additive Substances 0.000 claims abstract description 204
- 230000000996 additive effect Effects 0.000 claims abstract description 189
- 238000003860 storage Methods 0.000 claims abstract description 27
- 238000002156 mixing Methods 0.000 claims description 38
- 238000001816 cooling Methods 0.000 claims description 33
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 230000035515 penetration Effects 0.000 claims description 7
- 230000001154 acute effect Effects 0.000 claims description 3
- 238000011143 downstream manufacturing Methods 0.000 claims description 2
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 description 12
- 239000004033 plastic Substances 0.000 description 12
- 239000007789 gas Substances 0.000 description 10
- 239000000203 mixture Substances 0.000 description 9
- 238000002844 melting Methods 0.000 description 7
- 230000008018 melting Effects 0.000 description 7
- 239000002245 particle Substances 0.000 description 7
- 239000000843 powder Substances 0.000 description 7
- 239000008187 granular material Substances 0.000 description 6
- 239000004800 polyvinyl chloride Substances 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 229920000915 polyvinyl chloride Polymers 0.000 description 5
- 230000001413 cellular effect Effects 0.000 description 4
- 229920000098 polyolefin Polymers 0.000 description 3
- -1 polypropylene Polymers 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000006057 Non-nutritive feed additive Substances 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 229920003020 cross-linked polyethylene Polymers 0.000 description 2
- 239000004703 cross-linked polyethylene Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229920000426 Microplastic Polymers 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical class [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012432 intermediate storage Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
- B29C31/04—Feeding of the material to be moulded, e.g. into a mould cavity
- B29C31/06—Feeding of the material to be moulded, e.g. into a mould cavity in measured doses, e.g. by weighting
- B29C31/061—Feeding of the material to be moulded, e.g. into a mould cavity in measured doses, e.g. by weighting using stationary volumetric measuring chambers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/58—Component parts, details or accessories; Auxiliary operations
- B29B7/60—Component parts, details or accessories; Auxiliary operations for feeding, e.g. end guides for the incoming material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/58—Component parts, details or accessories; Auxiliary operations
- B29B7/60—Component parts, details or accessories; Auxiliary operations for feeding, e.g. end guides for the incoming material
- B29B7/603—Component parts, details or accessories; Auxiliary operations for feeding, e.g. end guides for the incoming material in measured doses, e.g. proportioning of several materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
- B29B7/7476—Systems, i.e. flow charts or diagrams; Plants
- B29B7/748—Plants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
- B29B7/7476—Systems, i.e. flow charts or diagrams; Plants
- B29B7/7485—Systems, i.e. flow charts or diagrams; Plants with consecutive mixers, e.g. with premixing some of the components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/88—Adding charges, i.e. additives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
- B29C31/02—Dispensing from vessels, e.g. hoppers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/285—Feeding the extrusion material to the extruder
- B29C48/286—Raw material dosing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/285—Feeding the extrusion material to the extruder
- B29C48/288—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/40—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
- B29B7/42—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
- B29B7/78—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant by gravity, e.g. falling particle mixers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
- B29B9/065—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion under-water, e.g. underwater pelletizers
Definitions
- the invention relates to a processing plant for bulk material and a method for processing bulk material.
- WO 2016/055 043 A1 discloses a method for producing plastic products using an extruder.
- Two dosing systems are connected to an extruder in order to optionally feed different plastic granulate mixtures to the extruder.
- each dosing has a dosing station for a main component and several dosing stations for secondary components. All dosing stations lead to a union point which is closed by means of a gate valve. At the junction, the main component and the secondary component are collected and mixed together. The plastic granulate mixture produced in this way is fed into the extruder.
- the object is achieved according to the invention by a processing plant having the features specified in claim 1 and by a method having the features specified in claim 14 .
- a processing plant having the features specified in claim 1 and by a method having the features specified in claim 14 .
- the cost of premixing bulk material before adding it to a processing device, in particular an extruder can be reduced since cross-mixing takes place in the processing device, in particular in the extruder itself, which is necessary for processing of the bulk material is sufficient.
- the bulk material which in particular has powder, granules and/or flakes, is stored in at least one bulk material storage container.
- Powder has an average grain size of 70 ⁇ m to 2500 ⁇ m, in particular from 100 ⁇ m to 2200 ⁇ m, in particular from 120 ⁇ m to 2000 ⁇ m.
- Granules have in particular an average particle size of 2000 ⁇ m to 7000 ⁇ m, in particular from 2500 ⁇ m to 6000 ⁇ m and in particular from 2500 ⁇ m to 5000 ⁇ m.
- Flakes have an average particle size of in particular 1000 to 10000 ⁇ m, in particular 1000 to 8000 ⁇ m and in particular 1500 to 6000 ⁇ m.
- the bulk material storage container is in particular a bulk material silo, which is also referred to as a day silo.
- the processing plant can in particular comprise a plurality of bulk material storage containers which are each connected to the processing device via a separate bulk material downcomer. It is also possible for several bulk material downpipes to open into a common bulk material downpipe, which connects the respective bulk material metering devices directly to the processing device.
- a bulk material collecting dosing device in particular a cellular wheel sluice, is connected to the at least one bulk material storage container in order to meter the bulk material out of the bulk material storage container.
- the bulk material dosing device can be designed as a screw conveyor, vibratory conveyor or belt conveyor.
- a bulk material downpipe is connected to the bulk material metering device in order to convey the bulk material into the processing device.
- the bulk material downpipe has a nominal diameter of between 250 mm and 700 mm for large plants and 100 mm to 400 mm for compounding plants.
- the bulk material downpipe is in particular arranged at least in sections inclined relative to the horizontal. The bulk material downpipe enables the bulk material to be conveyed gravimetrically.
- the bulk material downpipe directly connects the bulk material metering device to the processing device.
- the bulk material is conveyed, in particular at least in part, from the bulk material metering device directly, in particular unmixed, into the processing device by means of the bulk material downpipe.
- the proportion of the bulk material flow that is conveyed directly from the bulk material metering device by means of the bulk material downpipe into the processing device is at least 70% of the production capacity of the processing device, in particular at least 75%, in particular at least 80%, in particular at least 85%, in particular at least 90% % and in particular at least 95%. This means that a mixing/transport device, which serves to transport and/or mix bulk material, can be avoided between the bulk material metering device and the processing device.
- Plastics are in particular polyolefins, in particular polypropylene (PP) and/or polyethylene (PE).
- the processing plant can also be used for polyolefins with low melting points, in particular ethylene vinyl acetate copolymers (EVA), or polyolefin plastics for cable manufacture such as cross-linked polyethylene (XLPE).
- EVA ethylene vinyl acetate copolymers
- XLPE cross-linked polyethylene
- PVC polyvinyl chloride
- E-PVC emulsion polymerisation
- S-PVC suspension polymerisation
- M-PVC bulk polymerisation
- engineering plastics such as polyamide (PA), polycarbonate (PC), polyethylene terephthalate (PET) and/or recycled regrind can be processed.
- the processing plant has at least one additive feed and in particular a plurality of additive feeds in order to feed an additive or a plurality of additives to the bulk material.
- the additive supply takes place in particular in the form of a, in particular mobile, delivery station, in particular a big bag emptying station and/or a vacuum unloading station.
- These delivery stations are in particular mobile storage containers, which are also referred to as Flexible Intermediate Bulk Containers (FIBC).
- FIBC Flexible Intermediate Bulk Container
- An intermediate storage container, a so-called Intermediate Bulk Container (IBC) can also be used to supply additives.
- the additive supply is also possible in the form of sacks, barrels and/or premix containers.
- Additives are in particular aggregates such as color pigments, stabilizers, antiblocking agents, processing aids, stearates, titanium dioxide, and plasticizers and/or whitening agents to influence the properties of a bulk mixture.
- the additives can be classified based on their flow properties. For example, there are additives in powder form with an average particle size of less than 100 ⁇ m. Such additives are cohesive, meaning they tend to stick together. Additives in powder form with an average particle size between 100 ⁇ m and 300 ⁇ m are essentially free-flowing. A granular or beaded additive with an average particle size of 300 ⁇ m to 2000 ⁇ m is free-flowing. Additives that are pelleted and/or press granulated have an average particle size of 2000 ⁇ m to 6000 ⁇ m and are free-flowing.
- the additives can also be classified based on their melting point.
- the melting point can be low, ie below the temperature of the bulk material, in particular the plastic particles, in particular the plastic granulate and/or the plastic powder.
- the temperature of the bulk material is in particular between 60°C and 100°C and in particular between 60°C and 80°C.
- the melting point of the additive can also be in the range of the temperature of the bulk material, in particular the plastic granules and/or the plastic powder, ie in particular between 60°C and 100°C, in particular between 60°C and 80°C. It is advantageous if the melting point of the additive is greater than 100°. The risk of sticking and/or caking with such additives is reduced.
- Additives whose melting point is higher than that of the bulk material, in particular the plastic granulate and/or the plastic powder, are advantageous for processing.
- the melting point is typically at a temperature greater than 100°C, particularly greater than 110°C and especially greater than 120°C.
- the processing of these additives is usually not critical.
- Additives can also be classified according to their formulation. Additives can be used pure, ie unmixed with other components, such as in particular antioxidants, lubricants, antistatic agents, antiblocking agents and/or processing aids. It is also possible to create a premix, a so-called premix, from several additives and use it in the processing plant. Such a premix is typically tailored specifically to the processing facility and the material to be produced with it.
- An additive dosing device is connected to the additive feed in order to dispense the additive from the additive feed in metered amounts.
- the additive dosing device is in particular a loss-in-weight feeder, a Coriolis scale and/or a baffle plate quantity measurement with a cellular wheel sluice.
- An additive downcomer is connected to the additive dosing device in order to convey the additive into the processing device.
- the additive downpipe has a nominal diameter of between 80 mm and 350 mm.
- the additive metering device is in particular indirectly connected to the processing device. In particular, the additive dosing device is not directly connected to the processing device.
- a processing plant according to claim 2 is designed to be particularly uncomplicated. Because the bulk material downpipe is at least partially, in particular over at least 50% of its length, in particular over at least 60% of its length, in particular over at least 70% of its length, in particular over at least 80% of its length, in particular over at least 90% of its length and in particular over at least 95% of its length, is oriented at an angle of inclination to the vertical, gravimetric conveyance of the bulk material along the bulk material downpipe is reliably ensured.
- the angle of inclination relative to the vertical is in particular different from 0°.
- the angle of inclination relative to the vertical is in particular between 10° and 75°, in particular between 20° and 60°, in particular between 20° and 45° and in particular between 20° and 35°.
- the angle of inclination is determined as a function of the wall friction angle of the bulk material with the surface of the inside of the bulk material downpipe.
- the wall friction angle is influenced by the surface design, in particular the roughness, of the inside of the bulk material downpipe.
- the bulk material downpipe it is possible for the bulk material downpipe to be oriented exactly vertically.
- a processing plant enables advantageous processing of the bulk material.
- the bulk material is cross-mixed with the at least one additive in the extruder.
- An extruder hopper can be arranged on the extruder.
- the extruder hopper facilitates the feeding of the bulk material and/or the at least one additive.
- the extruder pre-hopper enables the bulk material and/or the additive to be temporarily stored when it is fed into the extruder.
- the extruder hopper allows for a separation of displacement air from the extruder and/or a Separation of flushing air from the additive feed, the additive dosing device and/or the additive downpipe.
- a processing plant according to claim 4 enables a particularly uncomplicated design. Because the additive downpipe opens, in particular directly, into the bulk material downpipe, the at least one additive is introduced into the flowing bulk material. The risk of the additive caking on the inside of the downpipe is reduced. It was recognized that it is advantageous if the additive downpipe and the bulk material downpipe enclose an acute angle.
- An acute angle is less than or equal to 90°, in particular less than or equal to 80°, in particular less than or equal to 70°, in particular less than or equal to 60°, in particular less than or equal to 50°, in particular less than or equal to 45°, in particular less than or equal to 40 °, in particular less than or equal to 30°, in particular less than or equal to 25° and in particular less than or equal to 20°.
- a processing plant improves the direct addition of the additive into the bulk material downcomer.
- the risk of additive being able to deposit in the area where the additive downpipe joins the bulk material downpipe and/or in the bulk material downpipe itself, in particular due to turbulence in the free space above the bulk material flow, is reduced.
- the risk is reduced that the at least one additive will adhere and/or cake and/or stick to the inside of the bulk material downpipe.
- the penetration depth ensures that the added additive is carried along by the bulk material flow. is taken and distributed in the bulk material flow.
- the penetration depth is the deepest point of the additive downpipe that protrudes into the bulk material downpipe.
- the additive downpipe is beveled at its opening arranged in the bulk material downpipe with respect to the longitudinal axis of the additive downpipe.
- the inclination of a plane defined by a delivery opening of a junction piece with respect to the longitudinal axis of the bulk material downpipe is understood as the bevel angle.
- the angle of inclination and the angle of inclination of the bulk material downpipe add up to an angle that is in particular less than or equal to 90°. If the angle of inclination is 0°, the additive downpipe is arranged with its outlet in the bulk material downpipe parallel to its longitudinal axis.
- the bevel angle is in a range between 0° and 60°, in particular between 0.5° and 45°, in particular between 1° and 30°, in particular between 1° and 20°, in particular between 1° and 15° , in particular between 1° and 10° and in particular between 1° and 5°. It is advantageous if the sum of the angle of inclination and the angle of inclination of the bulk material downpipe result in a sum angle that is less than or equal to 80°, in particular less than or equal to 70°, in particular less than or equal to 60°, in particular less than or equal to 55°, in particular less than or equal to is equal to 50° and in particular less than or equal to 48°.
- the additive downpipe can have a straight or rounded shape in the area of its outlet.
- a radius of curvature can be provided which is in particular between half the nominal diameter of the additive downpipe and half the nominal diameter of the bulk material downpipe.
- the end of the Additive downpipe can also be elliptical or designed with an obtuse angle.
- the additive downpipe is attached to the bulk material downpipe, in particular welded on, without the additive downpipe being immersed in the bulk material downpipe.
- the additive downpipe opens directly into an opening provided for this purpose in the bulk material downpipe.
- the immersion depth is 0.
- a processing plant according to claim 6 additionally avoids the risk of a build-up of the bulk material and/or a mixture of bulk material and the additive along the bulk material downpipe.
- a flow guide element is fastened in particular in the bulk material downpipe.
- a flow guide element can be, for example, a flow straightener, in particular a flow guide plate.
- a processing plant enables the additive to be conveyed reliably, gravimetrically.
- the additive downpipe is oriented at least in sections and in particular over 60% of its length, in particular over 70% of its length, in particular over 80% of its length, in particular over 90% of its length and in particular over 95% of its length with a non-zero angle of inclination.
- the angle of inclination relative to the vertical is in particular less than or equal to 40°, in particular less than or equal to 30° and in particular less than or equal to 15°.
- An additive downpipe arranged inclined relative to the vertical is particularly advantageous when using an additive that is highly fluidized when flowing. Because the additive flows in the inclined additive downcomer, it does not become too fluid.
- An additive conveyed in this way is improved by the bulk material flow in the bulk material downpipe entrained and/or better mixed with the bulk material flow in the bulk material downpipe. . The risk of caking is reduced.
- the additive downpipe it is possible for the additive downpipe to be oriented exactly vertically.
- a processing plant reduces the risk of caking.
- a cooling unit serves to cool the bulk material downpipe and/or the additive downpipe.
- a cooling unit can in particular be designed in the form of at least one cooling plate which is attached to an outer wall of the respective downpipe. It is alternatively or additionally conceivable for the respective downpipe to be double-walled and for an intermediate space to be flushed with a cooling medium, in particular cooling liquid, in particular cooling water.
- the cooling unit is designed as a heat exchanger due to the double-walled design of the downpipe.
- cooling gas in particular inert gas and in particular nitrogen, can be used for cooling in the bulk material downpipe and/or in the additive downpipe. In particular, a gas flow is used to cool the additive.
- the gas stream is directed in particular in the flow direction of the additive, that is to say in cocurrent, starting from the outlet of the additive metering device, in particular the loss-in-weight feeder. Cooling allows friction-related heat to be dissipated from the respective downpipe. The risk of sticking as a result of heated bulk material and/or additive on the inner wall of the respective downpipe is reduced.
- the respective downpipe can be cooled by means of the cooling unit in such a way that the temperature on the inside of the downpipe is at least 5 °C, in particular at least 10 °C and in particular which is at least 15 °C below the softening point of the additive.
- a double-walled cooling line can be operated in co-current or in counter-current.
- the bulk material downpipe at least in the junction area of the additive downpipe and/or to indirectly cool the outlet of the additive downpipe, which protrudes into the bulk material downpipe, via the bulk material downpipe. It is also possible to design a junction s muff for the junction of the additive downpipe with the bulk material downpipe with a larger diameter than the additive downpipe, so that the cooled additive downpipe can protrude into the junction s muff.
- a flow support unit reduces the risk of caking and/or sticking in the respective downpipe.
- the bulk material downcomer can have a gas supply to generate a gas flow along the bulk material downcomer from the bulk material metering device to the processing device and to support the conveyance of the bulk material along the bulk material downcomer into the processing device.
- mechanical support devices such as vibrators and/or shakers can also be used.
- a mixing/transport device enables intensified premixing of the bulk material with the at least one additive.
- the mixing/transport device is designed in particular as a mixing and/or transport screw.
- the mixing/transport device can also be designed as a vibrating conveyor. It is essential that the mixing/transport device is previously, at least partially, vertical oriented bulk material conveying direction is converted into an, in particular exclusively, horizontally oriented bulk material conveying direction. The addition of at least one additive to the horizontally conveyed bulk material flow is improved.
- the bulk material flow in the mixing/transport device can also be inclined relative to the horizontal, with a corresponding angle of inclination of no more than 45°, in particular no more than 30°, in particular no more than 15°, in particular no more than 10°, in particular no more than 8°, in particular no more than 5°, in particular is at most 3° and in particular at most 1°.
- the mixing/transport device is connected to the downstream processing device in particular via a connecting downcomer, which is in particular vertically oriented. Because a minimum portion of the bulk material is fed directly from the bulk material metering device to the processing device via the bulk material drop line, the mixing/transport device can be designed to be smaller. This reduces the investment and/or operating costs of the system.
- the mixing/transport device will receive at most 50% of the production capacity of the processing device, in particular between 2% and 45%, in particular between 3% and 40%, in particular between 4% and 35%, in particular between 4% and 30%, between 5% and 25%, in particular between 5% and 20% and in particular between 5% and 15% are added.
- the mass flow of the bulk material and the at least one additive into the processing device is referred to as production output.
- a second bulk material downpipe according to claim 11 enables a bulk material partial flow to be fed into the mixing/transport device.
- a processing system according to claim 12 enables improved mixing of the bulk material partial flow with additive in the mixing/transport device.
- a design of the mixing/transport device according to claim 13 is particularly economical.
- a method according to claim 14 essentially has the advantages of the processing plant itself, to which reference is hereby made.
- a method according to claim 15 reduces the risk of the bulk material and/or the additive sticking together in the respective downpipe.
- FIG. 1 shows a schematic representation of a processing plant for bulk material with an inclined bulk material downpipe into which several additive downpipes open
- FIG. 2 shows an enlarged detailed sectional view according to detail II in FIG. 1,
- FIG. 3 shows a representation corresponding to FIG. 2 of an outlet of an additive downpipe according to a further embodiment
- Fig. 4 is a sectional view according to section line IV-IV in Fig. 3,
- FIG. 5 shows a representation corresponding to FIG. 4 with a rounded junction outlet
- FIG. 6 shows a representation corresponding to FIG. 1 of a processing system according to a second exemplary embodiment with a mixing/conveying screw
- FIG. 7 shows a representation of a processing plant corresponding to FIG. 1 according to a third exemplary embodiment with a cooling unit for cooling the bulk material downpipe and an additive downpipe,
- Fig. 8 is an enlarged view of detail VIII in Fig. 7,
- FIG. 9 shows a representation corresponding to FIG. 1 of a processing plant according to a fourth exemplary embodiment with two bulk material storage containers
- Fig. 10 shows an enlarged sectional view according to section line XX in Fig. 9, 11 shows a representation of a processing plant corresponding to FIG. 1 according to a fifth exemplary embodiment, the bulk material downpipe running vertically at least in sections and additive downpipes opening into the vertically oriented bulk material downpipe from above,
- FIG. 12 shows a representation of a processing plant corresponding to FIG. 1 according to a sixth exemplary embodiment, in which the bulk material downpipe is oriented exclusively vertically, into which the inclined oriented additive downpipes open.
- a processing plant designated as a whole by 1 in FIG. 1 is used for processing bulk material.
- the processing plant 1 has a processing device 2 in the form of an extruder.
- the extruder 2 has a screw conveyor 3 and a screw drive 4 driving the screw conveyor 3 .
- a funnel-shaped extruder hopper 5 for feeding the bulk material into the extruder 2 is arranged on an upper side of the extruder 2 in the inlet area of the screw conveyor 3 .
- the extruder 2 has a pelletizing hood 6 with a drive 7 .
- the granulating hood can be designed with an integrated cooling system, which is indicated in FIG. 1 by the arrows for the supply and removal of cooling medium, in particular cooling water.
- the bulk material to be processed is stored in at least one bulk material storage container 8 .
- Several bulk material storage containers 8 can be provided, in particular two bulk material storage containers 8, in particular three bulk material storage containers 8, in particular four bulk material storage containers 8, in particular six bulk material Storage container 8 and in particular more than six bulk storage containers 8.
- the bulk material storage container 8 has an outlet cone 9 to which a connecting line 10 is connected.
- a bulk material dosing device 11 is connected to the bulk material storage container 8 via the connecting line 10 .
- the connecting line 10 is oriented exclusively vertically. This means that the bulk material dosing device 11 is arranged immediately below the outlet opening of the outlet cone 9 , ie immediately below the bulk material storage container 8 .
- the bulk material dosing device 11 can also be arranged laterally offset below the outlet opening of the outlet cone 9 .
- the Schütgut- dosing device 11 is designed according to the embodiment shown as a star feeder.
- the cellular wheel sluice 11 is used for metered dispensing of the bulk material from the bulk material storage container 8.
- the cellular wheel sluice 11 is connected directly to the extruder 2 by means of a bulk material downpipe 12 .
- the bulk material downpipe 12 opens into the extruder hopper 5.
- the bulk material downpipe 12 is oriented at least in sections at an angle of inclination ⁇ relative to the vertical.
- the bulk material dispensed in a metered manner by the star feeder 11 is conveyed directly into the extruder 2, in particular gravimetrically, via the bulk material downpipe 12.
- the processing system 1 also includes three additive feeds 13, each of which is used to feed an additive. Depending on the with The product to be produced by the processing device, in particular the extrudate, can also be provided with more or fewer than three additive feeds 13 .
- each additive feed 13 there is an additive either in pure form, ie unmixed, or as an additive mixture, a so-called premix.
- the additive feeds 13 can be identical or different.
- An additive metering device 14 is connected to each additive feed 13 and is designed as a loss-in-weight feeder in accordance with the exemplary embodiment shown.
- the additive metering devices 14 are each used for metered delivery of the additive.
- An additive downpipe 15 is connected to each of the additive dosing devices 14 .
- up to ten additive downpipes 15 can open into the bulk material downpipe 12 .
- the additive downpipes 15 are each oriented vertically.
- the additive downpipes 15 each open directly into the bulk material downpipe 12, in particular in a region of the bulk material downpipe 12 in which it is arranged at an angle of inclination ⁇ with respect to the vertical.
- At least one of the additive downpipes 15 can open directly into the extruder hopper 5 .
- This additive downpipe 15 is designed independently of the bulk material downpipe 12 . This allows the additive to be added separately to the extruder 2 .
- the bulk material downpipe 12 has a confluence zen 16 to which the additive downpipe 15 can be connected.
- the additive downpipe 15 can be flanged to the confluence s 16 by means of a connecting flange 17 .
- the junction s clip 16 is designed as a cylinder tube.
- the confluence s muff 16 protrudes with a discharge opening 18 into the bulk material downpipe 12 .
- the discharge opening 18 is oriented in a plane perpendicular to the longitudinal axis 19 of the junction piece.
- the vertically oriented confluence s stub 16 and the bulk material downpipe 12 enclose the angle of inclination a.
- the bulk material downpipe 12 has a nominal width DNi.
- DNi 350 mm applies.
- the confluence s muff 16 is arranged with a penetration depth T in the bulk material downpipe 12 .
- the penetration depth T is defined as the deepest point of the junction s stub 16 in the bulk material downpipe 12. It is advantageous if the penetration depth T is at least 60% of the nominal diameter DNi of the bulk material downpipe 12 is.
- the nominal diameter DNi defines the inner diameter of the cylindrical bulk material downpipe 12.
- a method for processing bulk material is explained in more detail below with reference to FIGS.
- this is metered out of the bulk material storage container 8 and the bulk material metering device 11 and discharged into the bulk material downpipe 12 .
- at least one additive is delivered from the respective additive feed 13 and the additive metering device 14 connected to it into the additive downpipe 15 . Since the additive downpipe 15 opens directly into the bulk material downpipe 12 via the junction 16, the additive can be added to the bulk material flowing in the bulk material downpipe 12. The risk of the additive caking and/or adhering in the bulk material downpipe 12 is avoided.
- the stream of bulk material and at least one additive is added to the extruder 2 from the bulk material downpipe 12 via the extruder hopper 5 and is processed there.
- the discharge opening 18 is oriented with a bevel angle y of 0° with respect to the longitudinal axis 20 of the bulk material downpipe.
- the discharge opening 18 is oriented parallel to the longitudinal axis 20 of the bulk material downpipe.
- the bevel angle ⁇ can be greater than 0° and range between 1° and 10°. It has been found that the dispensing of the additive into the bulk material flow in the bulk material downcomer 12 is improved by the tapered discharge opening 18 .
- the discharge opening 18 has a straight outlet edge 22 .
- Fig. 5 shows another variant of a junction s stub 23 with a curved running edge 24.
- the outlet edge 24 is rounded with a radius of curvature R.
- the outlet edge 24 can also be elliptical.
- the outlet edge 24 can also be non-circular, in particular angled.
- a second exemplary embodiment of the invention is described below with reference to FIG.
- Structurally identical parts are given the same reference numbers as in the first exemplary embodiment, to the description of which reference is hereby made.
- Structurally different, but functionally similar parts are given the same reference numbers with a suffix a.
- the processing plant la has a second bulk material downpipe 25 which is connected to the bulk material metering device 11 .
- the second bulk material downpipe 25 opens into a mixing/conveying device 26, which is designed as a mixing/conveying screw.
- the second bulk material downpipe 25 is arranged at an angle of inclination e relative to the vertical.
- the angle of inclination e is in particular less than or equal to 45°, in particular less than or equal to 30°, in particular less than or equal to 20° and in particular less than or equal to 10°. It is also conceivable that the second bulk material downpipe 25 is arranged vertically.
- At least one additive downpipe 15 is also connected to the mixing/transport device 25 .
- all additive downpipes 15 are connected to the mixing/transport device 26 .
- the mixing/conveying device 26 is connected to the downstream extruder 2 by means of a connecting downcomer 27 .
- all additive downpipes 15 open into the mixing/transport device 26. It is also conceivable that at least one or more additive downpipes 15 open into the bulk material downpipe 12 according to the first exemplary embodiment.
- the mixing/transport device 26 can be designed to be small. This saves investment and operating costs. In particular, it is sufficient if the mixing/transport device 26 has a mixing/transport capacity that corresponds at most to 50% of a production capacity of the extruder 2.
- the mass flow of the extrudate is understood as the output of the extruder.
- the mixing/transport capacity of the mixing/transport device is the mass flow that leaves the mixing/transport device 26 .
- a third exemplary embodiment of the invention is described below with reference to FIGS.
- Structurally identical parts are given the same reference numbers as in the two previous exemplary embodiments, the description of which is hereby referred to.
- Structurally different but functionally similar parts are given the same reference numbers with a suffix b.
- the processing plant 1b is designed without a mixing/transport device.
- the additive downpipes 15 open directly into the bulk material downpipe 12.
- the additive downpipe 15 shown on the left in FIG. 7 is inclined at an angle of inclination ⁇ relative to the vertical.
- the additive downpipes 15 shown in the middle in FIG. 7 and the additive downpipes 15 shown on the right are each designed with a cooling unit 28 , 29 for cooling the respective additive downpipe 15 .
- the first cooling unit 28 is designed as a heat exchanger in the form of a double-walled pipe along the additive downpipe 15 .
- a heat exchange medium in particular a liquid, in particular water, can be used for active cooling of the additive downpipe 15 in an annular flow channel of the double-walled tube.
- a heat exchange medium inflow 30 is provided in a lower end of the double-walled tube facing the bulk material downpipe 12 and a heat exchange medium outflow 31 is provided on an opposite end of the double-walled tube facing the additive dosing device 14 .
- the heat exchange medium flows counter to the direction of flow of the additive.
- the heat exchanger is designed in counterflow.
- the heat exchanger can also be designed in parallel flow.
- the bulk material downpipe 12 is arranged at least in the junction area of the additive downpipe 15 with the first cooling unit 28 , a bulk material cooling unit 32 .
- the bulk material cooling unit 32 extends in particular only partially along the bulk material downpipe 12.
- the bulk material cooling unit 32 is designed analogously to the first cooling unit 28, with a heat exchange medium inflow 30 and a heat exchange medium outflow 31.
- the bulk material cooling unit 32 is operated in countercurrent.
- the second cooling unit 29, which is arranged on the additive downpipe 15 shown on the right in FIG. 7, also serves to actively cool the additive.
- the second cooling unit 29 has a heat exchanger medium inflow 30 via which a cooled gas stream is fed directly into the additive downpipe 15 .
- the heat exchanger medium inflow 30 of the second cooling unit 29 is arranged on the additive downpipe 15 in the area of the additive metering device 14 .
- the heat exchanger medium inflow 30 serves as a gas supply.
- the cooled gas stream of the second cooling unit 29 flows in the additive downpipe 15 in cocurrent with the additive.
- the cooled gas stream can also serve to convey the additive along the additive downpipe 15 .
- the second cooling unit 29 represents a flow support unit.
- a flow support unit in the form of a mechanical element 42 is particularly advantageous for the inclined additive downpipe 15 .
- the mechanical element 42 is designed as a vibrator which is mechanically directly operatively connected to the additive downpipe 15 .
- the vibrator can vibrate the additive downpipe.
- the mechanical element 42 can also be a vibrator.
- the flow support units 29, 42 can be arranged on all downpipes 12, 15, in particular those arranged inclined with respect to the vertical. As shown in FIG. 8, the confluence s 16b has an enlarged inner diameter, so that the double-walled additive downpipe 15 can be inserted completely into the confluence s 16b and can protrude into the bulk material downpipe 12 .
- the bulk material cooling unit 32 is not shown in FIG. 8 for reasons of illustration.
- FIGS. A fourth exemplary embodiment of the invention is described below with reference to FIGS. Structurally identical parts are given the same reference numbers as in the previous exemplary embodiments, the description of which is hereby referred to. Structurally different but functionally similar parts are given the same reference numbers with a suffix c.
- two bulk material storage containers 8 are provided, each of which is connected to a bulk material collection drop line 33 by means of a bulk material metering device 11, not shown, and a bulk material down pipe 12.
- the bulk material dosing device 11 is connected to an inlet hopper 39 via the bulk material downpipe 12 and the bulk material collecting downpipe 33 .
- the inlet hopper 39 which is also referred to as the extruder feed hopper, opens directly into the extruder 2.
- the inlet hopper 39 essentially corresponds to the extruder hopper 5 according to the first exemplary embodiment.
- a filter 40 for flushing gas from the collecting downcomer 33 and/or from the additive collecting downcomer 34 and/or for displacement gas from the extruder can be connected to the inlet funnel 39 .
- a double-walled additive collection downpipe 34 with a cooling unit 28 opens into bulk material collection downpipe 33 .
- FIG. 9 shows the flow of the bulk material 35 in the bulk material collection downpipe 33 as an example.
- a flow guide element 36 in the form of a flow guide plate is arranged in the bulk material collection downpipe 33 upstream of the junction point of the additive collection downpipe 34 .
- the flow guide element is V-shaped in plan view according to FIG.
- the product flows of the bulk material and the additive caused by the flow guide element 36 are symbolized in FIG. 10 by the flow arrows 37 for the bulk material and 38 for the additive.
- the flow guide element 36 is arranged in the bulk material collection downpipe 33 at a height such that it is impossible for bulk material 35 to unintentionally collect above the flow control element 36 and in particular between the flow control element 36 and the additive collection downpipe 34 .
- the flow guide element 36 can be fastened to an upper side of the bulk material collection downpipe 33 and in particular can extend up to the upper side of the bulk material collection downpipe 33 .
- the flow guide element 36 may not extend over the entire height of the bulk material collection downpipe 33 .
- the flow guide element 36 is arranged at a distance from an underside of the bulk material collection downpipe 33 which is arranged opposite the upper side.
- the bulk material 35 can flow along the underside of the bulk material collecting downpipe 33, in particular between the underside of the bulk material collecting downpipe 33 and the flow guide element 36, resulting in a bulk material flow which is guided below the mouth of the additive collecting downpipe 34 is.
- the additive flows vertically down along the additive collection downpipe 34 into the bulk material collection downpipe 33 and is then deflected in the bulk material collection downpipe 33 to a flow parallel to the longitudinal axis 20 of the bulk material downpipe.
- the bulk material flow 37 is widened due to the flow guide element 36, in particular above the mouth of the additive collection downpipe 34 and around the junction point of the additive collection downpipe 34 in the bulk material collection downpipe 33, in particular on both sides. Downstream of the point of confluence, the bulk material flows 37 flow together again and take the additive flow 38 with them.
- a fifth exemplary embodiment of the invention is described below with reference to FIG.
- Structurally identical parts are given the same reference numbers as in the previous exemplary embodiments, the description of which is hereby referred to.
- Structurally different but functionally similar parts are given the same reference numbers with a suffix d.
- a bulk material collection downpipe 33 which runs exclusively vertically.
- a bulk material downpipe 12 which at least least sections is arranged inclined at the angle a to the vertical.
- the additive downpipes 15 are also essentially and in particular exactly oriented vertically.
- the additive downpipes 15 open into the bulk material collection downpipe 33 from above.
- the bulk material downpipe 12 is oriented exclusively vertically.
- the additive downpipes 15 are oriented inclined relative to the vertical and open laterally into the bulk material downpipe 12.
- the additive dosing devices 14 with the additive downpipes 15 connected thereto are on opposite sides, in particular in a circle around the bulk material downpipe 12, arranged.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102020212546.5A DE102020212546A1 (de) | 2020-10-05 | 2020-10-05 | Verarbeitungsanlage für Schüttgut und Verfahren zum Verarbeiten von Schüttgut |
PCT/EP2021/075318 WO2022073737A1 (de) | 2020-10-05 | 2021-09-15 | Vorrichtung und verfahren zur verarbeitung von schüttgut |
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EP4225546A1 true EP4225546A1 (de) | 2023-08-16 |
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EP21777734.1A Pending EP4225546A1 (de) | 2020-10-05 | 2021-09-15 | Vorrichtung und verfahren zur verarbeitung von schüttgut |
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Country | Link |
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US (1) | US20230234264A1 (de) |
EP (1) | EP4225546A1 (de) |
KR (1) | KR20230080435A (de) |
CN (1) | CN116323128A (de) |
CA (1) | CA3194879A1 (de) |
DE (1) | DE102020212546A1 (de) |
WO (1) | WO2022073737A1 (de) |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2117588A1 (en) * | 1971-04-10 | 1972-10-26 | Colortronic Reinhard & Co KG, 6380 Bad Homburg | Colouring plastic articles - by adding dye to the melt in the extruder |
DE2838110A1 (de) | 1978-08-31 | 1980-03-13 | Polygram Gmbh | Vorrichtung zur dosierung mehrerer einzelsubstanzen einer fuer die verarbeitung in einem extruder bestimmten mischcharge |
DE3506635A1 (de) * | 1985-02-26 | 1986-08-28 | Simar Fördertechnik GmbH, 7145 Markgröningen | Vorrichtung zum dosieren und zufuehren mehrerer granulat- und/oder pulverfoermiger komponenten fuer einen extruder |
DE29512047U1 (de) | 1995-07-26 | 1995-09-28 | Ambos & Langbein Elektro Elekt | Fördereinrichtung für pulverförmiges und/oder granuliertes Gut, insbesondere für eine kunststoffverarbeitende Maschine |
ES2224328T3 (es) * | 1998-02-18 | 2005-03-01 | Mann + Hummel Protec Gmbh | Dispositivo para producto a granel sueltos. |
DE10108706B4 (de) * | 2001-02-23 | 2004-08-05 | Azo Gmbh & Co | Vorrichtung zum Zuführen von Schüttgut |
DE102007050739B4 (de) | 2007-10-22 | 2010-03-04 | Plast-Control Gmbh | Vorrichtung zur Zuführung von Materialkomponenten zu einer Plastifiziereinrichtung |
DE102011078948B4 (de) * | 2011-07-11 | 2014-09-25 | Coperion Gmbh | Wärmetauschersystem für Schüttgut sowie Verfahren zum Betrieb eines derartigen Wärmetauschersystems |
US8894398B2 (en) * | 2012-07-20 | 2014-11-25 | Apex Business Holdings, L.P. | Modular plastics extrusion apparatus |
DE102013100812B4 (de) | 2013-01-28 | 2020-03-19 | Windmöller & Hölscher Kg | Verfahren für einen Materialwechsel bei einer Extrusionsvorrichtung und Extrusionsanlage |
US11648720B2 (en) | 2014-10-07 | 2023-05-16 | X-Per Extruder Performance Gmbh | Method for producing plastic products by means of an extruder, and shaping system |
JP6513804B2 (ja) | 2014-12-04 | 2019-05-15 | バーゼル・ポリオレフィン・ゲーエムベーハー | ポリオレフィン組成物を製造する方法 |
JP6865317B2 (ja) | 2020-04-28 | 2021-04-28 | 旭化成株式会社 | 押出機及びそれを用いた熱可塑性樹脂組成物の製造方法 |
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2020
- 2020-10-05 DE DE102020212546.5A patent/DE102020212546A1/de active Pending
-
2021
- 2021-09-15 EP EP21777734.1A patent/EP4225546A1/de active Pending
- 2021-09-15 KR KR1020237013625A patent/KR20230080435A/ko unknown
- 2021-09-15 WO PCT/EP2021/075318 patent/WO2022073737A1/de unknown
- 2021-09-15 CA CA3194879A patent/CA3194879A1/en active Pending
- 2021-09-15 CN CN202180067719.5A patent/CN116323128A/zh active Pending
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2023
- 2023-04-03 US US18/194,842 patent/US20230234264A1/en active Pending
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WO2022073737A1 (de) | 2022-04-14 |
DE102020212546A1 (de) | 2022-04-07 |
CN116323128A (zh) | 2023-06-23 |
US20230234264A1 (en) | 2023-07-27 |
KR20230080435A (ko) | 2023-06-07 |
CA3194879A1 (en) | 2022-04-14 |
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