DE2235023B2 - Device for preheating powdery or granular thermoplastics - Google Patents

Device for preheating powdery or granular thermoplastics

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Publication number
DE2235023B2
DE2235023B2 DE2235023A DE2235023A DE2235023B2 DE 2235023 B2 DE2235023 B2 DE 2235023B2 DE 2235023 A DE2235023 A DE 2235023A DE 2235023 A DE2235023 A DE 2235023A DE 2235023 B2 DE2235023 B2 DE 2235023B2
Authority
DE
Germany
Prior art keywords
extruder
storage container
line
granular
powdery
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.)
Granted
Application number
DE2235023A
Other languages
German (de)
Other versions
DE2235023A1 (en
DE2235023C3 (en
Inventor
Erich 2841 Steinfeld Riedel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NORDENIA-KUNSTSTOFFE PETER MAGER KG 2841 STEINFELD
Original Assignee
NORDENIA-KUNSTSTOFFE PETER MAGER KG 2841 STEINFELD
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NORDENIA-KUNSTSTOFFE PETER MAGER KG 2841 STEINFELD filed Critical NORDENIA-KUNSTSTOFFE PETER MAGER KG 2841 STEINFELD
Priority to DE2235023A priority Critical patent/DE2235023C3/en
Priority to AT601973A priority patent/AT344399B/en
Priority to GB3312473A priority patent/GB1394343A/en
Priority to IT12719/73A priority patent/IT992273B/en
Priority to FR7326421A priority patent/FR2192898B1/fr
Priority to BR5253/73A priority patent/BR7305253D0/en
Priority to ES416958A priority patent/ES416958A1/en
Priority to JP48082577A priority patent/JPS4985150A/ja
Publication of DE2235023A1 publication Critical patent/DE2235023A1/en
Publication of DE2235023B2 publication Critical patent/DE2235023B2/en
Application granted granted Critical
Publication of DE2235023C3 publication Critical patent/DE2235023C3/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B13/00—Conditioning or physical treatment of the material to be shaped
    • B29B13/02—Conditioning or physical treatment of the material to be shaped by heating
    • B29B13/021—Heat treatment of powders
    • 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
    • B29C48/275—Recovery or reuse of energy or materials
    • B29C48/276—Recovery or reuse of energy or materials of energy
    • 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
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/793—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling upstream of the plasticising zone, e.g. heating in the hopper
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92895—Barrel or housing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Description

3030th

Die Erfindung bezieht sich auf eine Vorrichtung zum Vorwärmen pulverförmiger oder körniger thermoplastischer Kunststoffe mit einem an einen Extruder anschließbaren Vorratsbehälter der mit einer Leitung zum Zuführen eines Heizmediums versehen ist.The invention relates to a device for preheating powdery or granular thermoplastic Plastics with a storage container that can be connected to an extruder or with a line is provided for supplying a heating medium.

Die pulverförmigen oder körnigen Kunststoffe werden in Silos gelagert, die außerhalb der Produktionsstätten angeordnet sind. Durch eine derartige Lagerung sind die Kunststoffe starken Temperatureinflüssen, die durch Witterungseinflüsse bedingt iind, unterworfen. Besonders in den Wintermonaten findet eine starke Abkühlung der Kunststoffe statt. Ein stark unterkühltes Kunststoffmaterial beeinträchtigt die Qualität des Fertigproduktes, z. B. der Folien, «nd macht andererseits einen erhöhten Leistungsbedarf der Verarbeitungsmaschine erforderlich.The powdery or granular plastics are stored in silos that are outside the production facilities are arranged. Such storage means that the plastics are exposed to strong temperature influences, which are conditioned by the effects of the weather. Especially in the winter months there is a strong cooling of the plastics. A severely supercooled plastic material has an adverse effect the quality of the finished product, e.g. B. the foils, on the other hand, makes an increased power requirement the processing machine required.

Es sind Vorratsbehälter der eingangs genannten Art bekannt (DT-OS 1454 806), denen ein Vorwärmgerät zugeordnet ist. Dieses Vorwärmgerät Weist elektrische Heizkörper und ein Gebläseaggregat auf, über das ein heißer Luftstrom in den Vorratsbehälter eingeführt wird.There are reservoirs of the type mentioned are known (DT-OS 1454 806), which a preheater assigned. This preheater has electric radiators and a blower unit on, through which a stream of hot air is introduced into the reservoir.

Es ist ferner bekannt (US-PS 3 036 335), im Vortatsbehälter einen Wärmeaustauscher vorzusehen, der aus einem Rohrschlangensystem gebildet ist. Über das das Rohrschlangensystem durchströmende Heizmedium wird das pulverförmige oder körnige, im Vorratsbehälter befindliche Kunststoffmaterial vorgewärmt, bevor es dem eigentlichen Produktionsprozeß im Extruder zugeführt wird.It is also known (US Pat. No. 3,036,335) in the reservoir to provide a heat exchanger formed from a coil system. The powdery or granular, The plastic material in the storage container is preheated before the actual production process is fed in the extruder.

Je nach der Größe des Extruders sind die Vorwärmgeräte mit unterschiedlicher Energieleistung ausgelegt. In jedem Fall ist der Energiebedarf jedoch relativ hoch, so daß zusätzliche Kosten entstehen.Depending on the size of the extruder, the preheaters have different energy outputs designed. In any case, however, the energy requirement is relatively high, so that additional costs arise.

Der Erfindung liegt die Aufgabe zugrunde, eine 6g Vorrichtung der eingangs genannten Art so zu gestalten, daß ein zusätzlicher Energiebedarf für das Aufheizen bzw. Vorwärmen der pulverförmigen oder körnigen thermoplastischen Kunststoffe Un Vorratsbehälter des Extruders entfälltThe invention is based on the object of a 6g To design the device of the type mentioned so that an additional energy requirement for heating or preheating of the powdery or granular thermoplastics Un storage container of the extruder is not required

Diese Aufgabe wird bei einer Vorrichtung der eingangs genannten Art, dadurch gelöst, daß die Leitung mit einer Absaugbaube verbunden ist, die den beim Betrieb Verlustwärme abgebenden Teil des Extruders und seiner Profilwerkzeuge überdeckt.This object is achieved in a device of the type mentioned at the outset in that the line is connected to a suction hood, which is the part of the extruder that emits heat loss during operation and its profile tools covered.

Die der Erfindung zugrundeliegende Aufgabe kann auch dadurch gelöst werden, daß die im Vorratsbehälter in bekannter Weise ein Rohr^cblangensystem bildende Leitung mit einem weiteren, in dem beim Betrieb Verlustwärme abgebenden Teil des Extruders angeordneten Rohrschlangensystem verbunden ist, wobei diese Systeme von einem Temperiermedium durchflossen sind.The object on which the invention is based can also be achieved in that the in the storage container in a known way a pipe system forming line with another part of the extruder that emits heat loss during operation arranged pipe coil system is connected, these systems of a temperature control medium are flowed through.

Durch den Gegenstand der Erfindung werden die Energiekosten für den Betrieb der Extruderanlage herabgesetzt.The subject matter of the invention reduces the energy costs for operating the extruder system degraded.

Die im Betrieb des Extruders und «einer Profilwerkzeuge entstehende Verlustwärme wärmt nicht nur durch die Rückführung in den Vorratsbehälter die kömigen oder pulverförmigen Kunststoffe vor, sondern es wird auch die Verlustwärme von dem Betriebsraum ferngehalten.The operation of the extruder and «a profile tool The resulting heat loss not only warms through the return to the storage tank the granular or powdered plastics before, but there is also the heat loss from the operating room kept away.

Wenn die Verlustwärme frei in den Betriebsraum entweichen kann, ist die Anschaffung einer Klimaanlage in vielen Fällen die Folge. Bei der ersten, angegebenen, erfindungsgemäßen Lösung kann die aus dem Vorratsbehälter austretende Kaltluft zur Klimatisierung des Betriebsraumes verwandt werden.If the heat loss can escape freely into the operating room, it is necessary to purchase an air conditioning system in many cases the result. In the first, specified, inventive solution, the Cold air emerging from the storage tank can be used to air-condition the operating room.

Die Erfindung wird im folgenden durch Ausführungsbeispiele, die in der Zeichnung dargestellt sind, näher erläutert. Es zeigtThe invention is illustrated below by exemplary embodiments which are shown in the drawing explained in more detail. It shows

F i g. 1 Eine Extruderanlage, bei der die am Extruder abgesaugte Warmluft dem Vorratsbehälter zugeführt wird,F i g. 1 An extruder system in which the hot air extracted at the extruder is fed to the storage container will,

F i g. 2 eine mit einem Wärmeaustauscher ausgerüstete Extruderanlage.F i g. 2 an extruder system equipped with a heat exchanger.

Der schematisch aufgezeigte Extruder 1 weist ein Schneckensystem 2 auf, das zum Plastifizieren von pulverförmigen oder körnigen thermoplastischen Kunststoffen 3 dient und dem Heizelemente 4 zugeuidnet sind. Nach der Plastifizierung des aus einem Vorratsbehälter 5 den Schnecken 2 zugeführten Kunststoffmaterials wird dieses mittels der Schnekken durch einen Formkopf 6 gepreßt, aus dem das thermoplastische Produkt7, z.B. eine Kunststoffolie, austritt.The extruder 1 shown schematically has a screw system 2, which is used for plasticizing powdered or granular thermoplastics 3 is used and the heating elements 4 zugeuidnet are. After the plasticization of the material fed to the screws 2 from a storage container 5 Plastic material this is pressed by means of the screws through a molding head 6, from which the thermoplastic product7, e.g. a plastic film, emerges.

Die im Bereich des Extruders und seiner Profilwerkzeuge während des Betriebes entstehende Verlustwärme wird in dem Ausführungsbeispiel nach der F i g. 1 über eine Absaughaube 8 und über eine Leitung 9 abgesaugt. Von einem Ventilator 10 aus wird die Warmluft über eine Leitung 11 im unteren Bereich dem Vorratsbehälter 5 zugeführt. Die Warmluft durchströmt den Vorratsbehälter und heizt das Kunststoff-Material 3 auf. Hierbei kühlt sich der Luftstrom ab und verläßt über einen Stutzen 12 den Vorratsbehälter als Kühlluftstrom, der dazu benutzt werden kann, die thermischen Bedingungen innerhalb der Produktionsstätte zu verbessern.The heat lost in the area of the extruder and its profile tools during operation is in the embodiment according to FIG. 1 via a suction hood 8 and via a line 9 sucked off. From a fan 10, the warm air is via a line 11 in the lower area supplied to the storage container 5. The warm air flows through the storage container and heats it Plastic material 3 on. Here, the air flow cools down and leaves the via a nozzle 12 Reservoir as a cooling air flow that can be used to reduce the thermal conditions within to improve the production facility.

Der durch die Wärmerückgewinnung entstehende Regelkreis kann stabil gestaltet werden, so daß die Qualität des thermoplastischen Produktes? gleichbleibend ist.The control loop resulting from the heat recovery can be designed to be stable, so that the Quality of the thermoplastic product? is consistent.

Bei dem Ausführungsbeispiel nach der F i g. 2 ist den Schnecken 2 neben den Heizelementen 4 ein die Schnecken umschließendes Rohrschlangensystem 15In the embodiment according to FIG. 2 is the screws 2 in addition to the heating elements 4 a Coil system enclosing snails 15

zugeordnet, Durch dieses Robrschlangensystera wird ein Temperlermedium IG, z. B. Wasser, transportiert. Im Bereich der Schnecke 2 findet eine Temperaturerhöhung des Temperiermediums unter dem Einfluß der Verluatwärme statt. Das Temperiermedium wird s durch eine Pumpe 17 in ein Rohrschlangeusystem 18 des Vorratsbehälters 5 transportiert und gibt dort seine Wärme an das ta Vorratsbehälter befindliche Kunststoffmaterial 3 ab. Von hler aus strömt das nunmehr abgekühlte Medium zurück in einen Sam- ίο melbehälter 19, wodurch der Kreislauf des Temperiermediums geschlossen ist. Über ein Ventil 20 kann eine Regulierung des Temperiermediums in der Menge stattfinden. Außerdem ist ein sogenanntes Mischventil 21 vorgesehen, welches zur Stabilisierung des gesamten Regelkreises den Zulauf von Kaltwasser bzw. die Abführung von Warmwasser gestattet. Durch dieses System ist unter Ausnutzung der Verlustwärme, die an dem Scbneckensystem 2 entsteht, eine Energierückgewinnung zugunsten der PIastifizierung von pulverförmigen oder körnigen Kunststoffen gegeben. Mit einem derartigen System erhöht sich der Gesamtwirkungsgrad der Anlage und somit die Rentabilität.assigned, by this Robrschlangensystera a tempering medium IG, e.g. B. water transported. In the area of the screw 2 there is an increase in temperature of the temperature control medium under the influence the lost heat instead. The temperature control medium is s by a pump 17 in a pipe coil system 18 of the storage container 5 transported and there gives its heat to the ta storage container located Plastic material 3 from. From here, the now cooled medium flows back into a sam- ο mel container 19, whereby the circuit of the temperature control medium is closed. Via a valve 20 can a regulation of the temperature control medium take place in the amount. In addition, is a so-called Mixing valve 21 is provided, which the supply of cold water to stabilize the entire control circuit or the removal of hot water is permitted. Through this system is taking advantage of the Heat loss that arises on the screw system 2, an energy recovery in favor of plasticification given by powdery or granular plastics. Increased with such a system the overall efficiency of the system and thus the profitability.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims (2)

Patentansprüche:Patent claims: 1. Vorrichtung zum Vorwärmen pulverförmiger oder körniger thermoplastischer Kunststoffe mit einem an einen Extruder auschließbaren Vorratsbehälter, der mit einer Leitung zum Zuführen eines Heizmediums versehen ist, dadurch gekennzeichnet, daß die Leitung (11) mit einer Absaughaube (8) verbunden ist, die den beim Betrieb Verlustwärme abgebenden Teil des Extruders (1) und seiner Profilwerkzeuge überdeckt 1. Device for preheating powdery or granular thermoplastics with a storage container that can be excluded from an extruder, which is provided with a line for supplying a heating medium, characterized in that, that the line (11) is connected to a suction hood (8) which the Covered part of the extruder (1) and its profile tools which give off heat loss during operation 2. Vorrichtung zum Vorwärmen pulverförmiger oder körniger thermoplastischer Kunststoffe nut einem an einen Extruder anschließbaren Vorratsbehälter, der mit einer Leitung zum Zuführen eines Heizmediums versehen ist, dadurch gekennzeichnet, daß die im Vorratsbehälter (5) in bekannter Wei.<^ ein Rohrschlangensystem (18) bildende Leitung mit einem weiteren, die dem beim Betrieb Verlustwärme abgebenden Teil des Extruders (1) angeordneten Rohrschlangensystem (15) verbunden ist, wobei diese Systeme von einem Temperiermedium (16) durchflossen sind.2. Device for preheating powdery or granular thermoplastics but a storage container which can be connected to an extruder and which has a line for feeding a heating medium is provided, characterized in that the in the storage container (5) in known Wei. <^ Forming a coiled pipe system (18) Line with another part of the extruder that gives off heat loss during operation (1) arranged pipe coil system (15) is connected, these systems of a temperature control medium (16) flowed through.
DE2235023A 1972-07-17 1972-07-17 Device for preheating powdery or granular thermoplastics Expired DE2235023C3 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
DE2235023A DE2235023C3 (en) 1972-07-17 1972-07-17 Device for preheating powdery or granular thermoplastics
AT601973A AT344399B (en) 1972-07-17 1973-07-09 DEVICE FOR HEATING THE RAW MATERIAL IN THE RESERVOIR OF AN EXTRUDER
IT12719/73A IT992273B (en) 1972-07-17 1973-07-11 PROCEDURE AND DEVICE FOR HEATING THE RAW MATERIAL IN THE FEED TANK OF AN EXTRUDER
GB3312473A GB1394343A (en) 1972-07-17 1973-07-11 Method and apparatus for heating the raw material in the storage container of an extruder
FR7326421A FR2192898B1 (en) 1972-07-17 1973-07-12
BR5253/73A BR7305253D0 (en) 1972-07-17 1973-07-13 PROCESS AND DEVICE FOR HEATING THE RAW MATERIAL CONTAINED IN THE RESERVOIR OF AN EXTRUSION APPLIANCE
ES416958A ES416958A1 (en) 1972-07-17 1973-07-16 Method and apparatus for heating the raw material in the storage container of an extruder
JP48082577A JPS4985150A (en) 1972-07-17 1973-07-17

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2235023A DE2235023C3 (en) 1972-07-17 1972-07-17 Device for preheating powdery or granular thermoplastics

Publications (3)

Publication Number Publication Date
DE2235023A1 DE2235023A1 (en) 1974-01-31
DE2235023B2 true DE2235023B2 (en) 1974-09-05
DE2235023C3 DE2235023C3 (en) 1975-05-07

Family

ID=5850844

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2235023A Expired DE2235023C3 (en) 1972-07-17 1972-07-17 Device for preheating powdery or granular thermoplastics

Country Status (8)

Country Link
JP (1) JPS4985150A (en)
AT (1) AT344399B (en)
BR (1) BR7305253D0 (en)
DE (1) DE2235023C3 (en)
ES (1) ES416958A1 (en)
FR (1) FR2192898B1 (en)
GB (1) GB1394343A (en)
IT (1) IT992273B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3037441A1 (en) * 1980-10-03 1982-05-13 Klaus 4803 Steinhagen Kalwar Automatic thermoplastics extruder regulation - where return to raw material of recovered heat losses is regulated by throughput meter
DE4214565A1 (en) * 1992-05-08 1993-11-11 Ulrich Puhan Waste heat recovery appts. e.g. from electric oven cooking plates that have just been switched off - has funnel-shaped casing with cold water inlet and heated water outlet placed over plates

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DE3485203D1 (en) * 1983-07-22 1991-11-28 Mapro Inc METHOD AND DEVICE FOR REMOVING HUMIDITY AND VOLATILE COMPONENTS FROM PARTICULATE MOLDING MATERIAL.
GB2150846B (en) * 1983-12-06 1987-06-10 Thyssen Ag Apparatus for mixing particulate material having a preheating device for material to be mixed
JPH0729364B2 (en) * 1992-06-10 1995-04-05 株式会社マルヤス Inflation molding system
DE4300595A1 (en) * 1993-01-13 1994-07-14 Fasti Farrag & Stipsits Ges M Process for operating a dryer for pulverulent, granular and pourable substances and a dryer operating according to the process
ITMI20061798A1 (en) * 2006-09-21 2008-03-22 Ferioli Filippo S P A EQUIPMENT AND EXTRUSION METHOD OF PLASTIC MATERIAL
DE102008023046A1 (en) 2008-05-09 2009-11-12 Coperion Gmbh Plastic granulating plant has granulating device that is water-cooled with granulated-water, where bulk-cargo heat exchanger is provided with heat exchanger medium for heating plastic-bulk cargo
US9776354B2 (en) 2013-02-24 2017-10-03 American Maplan Corporation Extrusion process
DE102013202997A1 (en) * 2013-02-24 2014-08-28 Battenfeld-Cincinnati Germany Gmbh Method for using the amount of heat released in an extrusion process
DE102013202996A1 (en) * 2013-02-24 2014-08-28 Battenfeld-Cincinnati Germany Gmbh Method for using the amount of heat released in an extrusion process
CN104149308B (en) * 2014-07-24 2016-06-22 大连理工大学 A kind of barrel configuration of the single screw rod/double screw extruder based on phase-change heat transfer
CN109624261A (en) * 2019-02-21 2019-04-16 上海金纬管道设备制造有限公司 Heat-energy recovering apparatus, extrusion equipment and the heat energy recovering method of extrusion equipment
DE102020102552A1 (en) 2020-02-03 2021-08-05 Reifenhäuser GmbH & Co. KG Maschinenfabrik PLASTICS PROCESSING PLANT
CN111231262B (en) * 2020-03-05 2021-11-09 苏州市华仓塑料有限公司 Environment-friendly plastics extruding machine
CN114193729B (en) * 2021-11-25 2023-11-03 深圳市鼎盛皇科技发展有限公司 Energy-saving injection molding machine capable of reducing energy loss

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3037441A1 (en) * 1980-10-03 1982-05-13 Klaus 4803 Steinhagen Kalwar Automatic thermoplastics extruder regulation - where return to raw material of recovered heat losses is regulated by throughput meter
DE4214565A1 (en) * 1992-05-08 1993-11-11 Ulrich Puhan Waste heat recovery appts. e.g. from electric oven cooking plates that have just been switched off - has funnel-shaped casing with cold water inlet and heated water outlet placed over plates

Also Published As

Publication number Publication date
FR2192898B1 (en) 1976-11-12
BR7305253D0 (en) 1974-09-05
ATA601973A (en) 1977-11-15
GB1394343A (en) 1975-05-14
DE2235023A1 (en) 1974-01-31
IT992273B (en) 1975-09-10
ES416958A1 (en) 1976-03-16
FR2192898A1 (en) 1974-02-15
AT344399B (en) 1978-07-25
DE2235023C3 (en) 1975-05-07
JPS4985150A (en) 1974-08-15

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