EP0627979A1 - Housing for a worm-gear press - Google Patents

Housing for a worm-gear press

Info

Publication number
EP0627979A1
EP0627979A1 EP94901728A EP94901728A EP0627979A1 EP 0627979 A1 EP0627979 A1 EP 0627979A1 EP 94901728 A EP94901728 A EP 94901728A EP 94901728 A EP94901728 A EP 94901728A EP 0627979 A1 EP0627979 A1 EP 0627979A1
Authority
EP
European Patent Office
Prior art keywords
housing
screw
screws
screw press
press according
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.)
Ceased
Application number
EP94901728A
Other languages
German (de)
French (fr)
Inventor
Anton Zimmermann
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.)
Antogi AG
Original Assignee
Antogi AG
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 Antogi AG filed Critical Antogi AG
Publication of EP0627979A1 publication Critical patent/EP0627979A1/en
Ceased legal-status Critical Current

Links

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
    • 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
    • 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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/68—Barrels or cylinders
    • B29C48/6801—Barrels or cylinders characterised by the material or their manufacturing process
    • 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

Definitions

  • the invention relates to the housing of a twin-screw press for the continuous conveying, mixing and / or kneading of media under increased pressure, according to the characterizing features of claim 1.
  • extruder has become common for devices of this type.
  • the continuous conveying, mixing and / or kneading of media is one of the basic operations of process engineering.
  • the mixed and / or conveyed goods can be very different substances.
  • the chemical and physical properties of these substances, their state of aggregation and their behavior under pressure and temperature can vary accordingly.
  • Corresponding to this diversity is the state of the art for solutions in mechanical engineering, that of kneaders of the chocolate mass, the production of semi-finished plastics with extrusion and the processing of
  • REPLACEMENT LEAF free-flowing plastic granules with glass fiber content range from injection molding to the disposal of biologically active waste.
  • machines with, depending on the needs, cooled or heated housings and with at least two rotating, intermeshing screw conveyors are known, which build up pressure through the forced delivery of the medium in the individual, closed turns of the screw channel, without any effect on the mass transport produce.
  • One of the weak points of this construction is the housing; because the delivery pressure creates belt tension in the casing and the friction of the medium leads to abrasion and wear of the inner surfaces. This disadvantage is particularly significant when treating abrasive media or when the high pressures in the medium are of interest in order to increase the frictional forces in the medium.
  • the object of the present invention is to enable the setting of the pressure build-up and the internal frictional forces of the forced delivery of the medium in the screw channel of a twin-screw press, with or without reverse thrust, and to increase the service life of the machine.
  • the advantages achieved by the invention are essentially for existing tasks, in increasing the consistency of the kneading capacity and despite the fluctuating quality and quantity of the conveyed material (e.g. when starting and extending a batch), in increasing the life of the screw press and thus in increasing the
  • FIG. 2 shows the cross section of the screw press from FIG. 1.
  • the screw press in FIGS. 1 and 2 consists of the housing 1, the intermeshing screws 2, 3, which are mounted in the front plate 18 and the bearing block 17 and are designed as a retruder with reversing gradients for the purpose of reversing thrust, as a reversing screw .
  • the housing 1 is around the screws 2, 3 with the claddings 11 and 12, and in the region of the line of penetration of the screw shell from the screws 2, 3 as an extension of the wear protection of the claddings 11 and 12, with the insert parts 4 and 5 provided.
  • the designation "reversing screw” indicates the special property of these screws, because both reversing screws change their conveying direction in the reverse direction in which their pitch angles are inverted.
  • Another important property of the two reversing screws 2, 3 is that they rotate in opposite and combing ways. In the area of the reversal points of the helix angles of the screws 2, 3, combing takes place in such a way that the turning ones
  • REPLACEMENT LEAF Turns of the reversing worms 2,3 roll like arrow-toothed gears. From the inlet 7, the medium reaches the screw channel of the screws 2, 3 and is forced by the counter-rotation in the individual (from the turns of the screw channel, the inner wall of the housing, which consists of the claddings 11, 12 and the two Insert parts 4.5, the intermeshing screw 2,3) closed gears conveyed to the turning points. From the turning point, the mass transport promoted in the opposite direction presses against this mass flow. Corresponding: the counter pressure of the reverse direction increases the frictional force in the medium. The turn of the reverse direction finally allows the mass transport of the medium to advance to the outlet 8.
  • the outlet 8 of the medium closes or narrows and the screw pressure increases as a result of the constraint. Similarly, the screw pressure drops when the outlet 8 is expanded by pushing back the insert.
  • the adjustment spindle 20 can be operated both by hand and by a controlled or regulated drive (not shown).
  • the quality of the medium such as a bearing of the screws 2, 3 located in the front plate 18, or a pressure sensor (not shown) integrated between the insert part 5 and the bottom of the housing 1 can serve as a control variable.
  • the exposed area of the exposed part 5 facing the outlet 8 is decisive for the wear.
  • the insert part 5 can be removed through the front plate 18 without disassembling the twin-screw press.
  • the housing 1 of the twin-screw press can be provided with a casing (not shown) that is common and / or subdivided as desired, which allows heating and / or cooling.

Abstract

L'invention concerne un carter de boudineuse à deux vis, qui comprend au moins deux vis (2, 3) s'engrenant en sens contraire et au moins une plaquette (4, 5). L'invention se caractérise en ce que la durée de vie eu égard à l'usure du carter (1) augmente en raison du choix de matériaux résistants à l'usure utilisés pour réaliser la plaquette (4, 5) et que la sortie (8) se ferme et s'élargit en raison de la mobilité de la plaquette (5) et qu'il est ainsi possible d'optimiser la pression des vis.The invention relates to a two-screw extruder housing, which comprises at least two screws (2, 3) engaging in opposite directions and at least one plate (4, 5). The invention is characterized in that the service life with regard to wear of the casing (1) increases due to the choice of wear-resistant materials used to make the wafer (4, 5) and that the outlet ( 8) closes and widens due to the mobility of the plate (5) and that it is thus possible to optimize the pressure of the screws.

Description

GEHÄUSE ZUR SCHNECKENPRESSE CASE FOR THE SCREW PRESS
Die Erfindung betrifft das Gehäuse einer Doppelschnecken¬ presse zum kontinuirlichen Fördern, Mischen und/oder Kneten von Medien unter erhöhtem Druck, gemäss den kennzeichnenden Merkmalen des Anspruchs 1. Für Vorrichtungen dieser Art hat sich die Bezeichnung Extruder eingebürgert. Eine besonders wichtige Ausführungsform der vorliegenden Erfindung, gilt für das Gehäuse eines Extruders, der Retruder (aus Re-vers= Umkehr und Ex-truder) genannt wird, weil durch die Umkehr der Förderrichtung die Innenwand des Gehäuses besonders stark beansprucht und weil durch die Verstellbarkeit mindestens eines Einsatzteils, die Optimierung der Schneckenpressung ermöglicht wird.The invention relates to the housing of a twin-screw press for the continuous conveying, mixing and / or kneading of media under increased pressure, according to the characterizing features of claim 1. The term extruder has become common for devices of this type. A particularly important embodiment of the present invention applies to the housing of an extruder, which is called a retruder (from reverse = reversing and ex-truder), because the inner wall of the housing is particularly stressed by the reversal of the conveying direction and because of the adjustability at least one insert part, the optimization of the screw pressure is made possible.
Das kontinuierliche Fördern, Mischen und/oder Kneten von Me¬ dien gehört zu den Grundoperationen der Verfahrenstechnik. Beim Misch-, und/oder Fördergut kann es sich um sehr ver¬ schiedene Substanzen handeln. Entsprechend verschieden können die chemischen und physikalischen Eigenschaften dieser Stoffe, ihr Agregatzustand und ihr Verhalten auf Druck und Temperatur sein. Entsprechend dieser Vielfalt ist der Stand der Technik für Lösungen im Maschinenbau, die von Knetern der Schokoladenmasse, der Herstellung von Kunststoffhalbzeug mit Extrusion und der Verarbeitung vonThe continuous conveying, mixing and / or kneading of media is one of the basic operations of process engineering. The mixed and / or conveyed goods can be very different substances. The chemical and physical properties of these substances, their state of aggregation and their behavior under pressure and temperature can vary accordingly. Corresponding to this diversity is the state of the art for solutions in mechanical engineering, that of kneaders of the chocolate mass, the production of semi-finished plastics with extrusion and the processing of
ERSATZBLATT rieselfähigem Kunststoffgranulat mit Glasfaseranteil zum Spritzguss bis zu der Entsorgung von biologisch aktiven Abfällen reichen. Für all diese Aufgaben sind Maschinen mit, je nach den Bedürfnissen gekühlten oder erwärmten Gehäusen und mit mindestens zwei sich drehenden, sich kämmenden Förderschnecken bekannt, die einen Druckaufbau durch die Zwangsförderung des Mediums in den einzelnen, abgeschlossenen Windungen des Schneckenkanals, ohne Rückwirkung auf den Massentransport erzeugen. Eine der Schwachstellen dieser Konstruktion ist das Gehäuse; denn der Förderdruck erzeugt Gürtelspannungen im Gehäusemantel und die Reibung des Mediums führt zur Abrasion und zum Verschleiss der Innenflächen. Insbesondere fällt dieser Nachteil bei der Behandlung abrasiver Medien ins Gewicht oder dann, wenn die hohen Drücke im Medium, zwecks Steigerung der Reibkräfte im Medium, selbst von Interesse sind. Das ist der Fall bei Knetaufgaben, wenn der Wirkungsgrad des Knetens gesteigert oder beispielsweise bei einem Reib-Reaktor, der als Ther o-Mechanische- Verfahrenseinheit, zum Aufschliessen der Zellwände einer Biomasse, mit hohen Betriebsdrücken zu fahren ist. Nach dem Stand der Technik wird entweder das ganze Gehäuse der Schnecken, oder als integrierte Plattierung des Gehäuses, in Form der Mantelfläche der Schnecken, aus verschleissfesten Werkstoffen hergestellt, um die gefährdeten Stellen örtlich vor einer Werkstoffabtrag zu schützen. Als Verschleiss- Schutz gelten Kobalt- und Nickellegierungen nach DIN 8555 sowie Hartmetall-Legierungen bekannter Art.REPLACEMENT LEAF free-flowing plastic granules with glass fiber content range from injection molding to the disposal of biologically active waste. For all these tasks, machines with, depending on the needs, cooled or heated housings and with at least two rotating, intermeshing screw conveyors are known, which build up pressure through the forced delivery of the medium in the individual, closed turns of the screw channel, without any effect on the mass transport produce. One of the weak points of this construction is the housing; because the delivery pressure creates belt tension in the casing and the friction of the medium leads to abrasion and wear of the inner surfaces. This disadvantage is particularly significant when treating abrasive media or when the high pressures in the medium are of interest in order to increase the frictional forces in the medium. This is the case with kneading tasks when the efficiency of kneading is increased or, for example, with a friction reactor, which is operated as a thermo-mechanical process unit for disrupting the cell walls of a biomass, at high operating pressures. According to the state of the art, either the entire housing of the screws, or as an integrated cladding of the housing, in the form of the outer surface of the screws, is made of wear-resistant materials in order to locally protect the vulnerable points against material removal. Wear protection is provided by cobalt and nickel alloys in accordance with DIN 8555 and hard metal alloys of a known type.
ERSATZBLATT Der Nachteil dieser Lösung ist die verhältnismässig kurze Lebensdauer des Verschleiss-Schutzes an den exponierten Stellen. Denn ausgerechnet an der Durchdringungslinie des Schnekkenmantels, wo der mechanische Abrieb am grössten ist, muss die Plattierung verschweisst und die örtliche Minderung des Verschleiss-Schutzes in Kauf genommen werden. Ein weiterer Nachteil der Doppelschneckenpressen ist, dass für die Optimierung der Schneckenpressung im Betrieb, ausser der aufwändigen Drehzahlregelung der Schnecken, jedes Mittel fehlt.REPLACEMENT LEAF The disadvantage of this solution is the relatively short lifespan of the wear protection at the exposed points. Because of all things, the plating must be welded on the penetration line of the snail shell, where the mechanical abrasion is greatest, and the local reduction in wear protection has to be accepted. Another disadvantage of twin screw presses is that no means are available to optimize screw pressure during operation, apart from the complex speed control of the screws.
Die vorliegende Erfindung stellt sich die Aufgabe, die Ein¬ stellung des Druckaufbauε und der mediuminternen Reibkräfte der Zwangsförderung des Mediums im Schneckenkanal einer Dop¬ pelschneckenpresse, mit oder ohne Schubumkehr, zu ermögli¬ chen, und die Lebensdauer der Maschine zu steigern.The object of the present invention is to enable the setting of the pressure build-up and the internal frictional forces of the forced delivery of the medium in the screw channel of a twin-screw press, with or without reverse thrust, and to increase the service life of the machine.
Erfindungsgemäss wird diese Aufgabe durch die kenn¬ zeichnenden Merkmale der Ansprüche 1 und 2 gelöst.According to the invention, this object is achieved by the characterizing features of claims 1 and 2.
Die durch die Erfindung erreichten Vorteile sind im wesentlichen für bestehende Aufgaben, in der Steigerung der Stetigkeit der Knetleistung und das trotz schwankender Qualität und Menge des Fördergutes (z.B. bei An- und Ausfahren einer Charge), in der Steigerung der Lebensdauer der Schneckenpresse und somit in der Erhöhung derThe advantages achieved by the invention are essentially for existing tasks, in increasing the consistency of the kneading capacity and despite the fluctuating quality and quantity of the conveyed material (e.g. when starting and extending a batch), in increasing the life of the screw press and thus in increasing the
ERSATZBLATT Verfügbarkeit derselben, sowie Dank diesen Vorzügen, die Möglichkeit der Schaffung neuer Verfahren.REPLACEMENT LEAF Availability of the same, and thanks to these advantages, the possibility of creating new procedures.
Anhand der beiliegenden Zeichnungen wird die Erfindung beispielsweise erläutert. Es zeigen:The invention is explained, for example, with reference to the accompanying drawings. Show it:
Fig.l den Längsschnitt einer Schneckenpresse mit Schubumkehr,Fig.l the longitudinal section of a screw press with reverse thrust,
Fig.2 den Querschnitt der Schneckenpresse von der Figur 1.2 shows the cross section of the screw press from FIG. 1.
Die Schneckenpresse in Figur 1 und 2 besteht aus dem Gehäuse 1, die sich kämmenden Schnecken 2,3, die in der Frontplatte 18 und dem Lagerblock 17 gelagert sind und als Retruder, mit sich kehrenden Steigungen, zwecks Schubumkehr, als Umkehr¬ schnecken ausgebildet sind. Dabei ist das Gehäuse 1 um die Schnecken 2,3 mit den Plattierungen 11 und 12, und im Bereich der Durchdringungslinie des Schneckenmantels von den Schnek-ken 2,3 als Verlängerung des Verschleiss-Schutzes der Plattierungen 11 und 12, mit den Einsatzteilen 4 und 5 versehen. Die Bezeichnung "Umkehrschnecke" weist auf die besondere Eigenschaft dieser Schnecken, denn beide Umkehrschnecken wechseln ihre Förderrichtung in die Umkehrrichtung inder ihre Steigungswinkel invertieren. Eine weitere wichtige Eigenschaft der zwei Umkehrschnecken 2,3 ist, dass sie sich gegenläufig und kämmend drehen. Im Bereich der Umkehrpunkte der Steigungswinkel der Schnecken 2,3 vollzieht sich das Kämmen so, dass die wendendenThe screw press in FIGS. 1 and 2 consists of the housing 1, the intermeshing screws 2, 3, which are mounted in the front plate 18 and the bearing block 17 and are designed as a retruder with reversing gradients for the purpose of reversing thrust, as a reversing screw . The housing 1 is around the screws 2, 3 with the claddings 11 and 12, and in the region of the line of penetration of the screw shell from the screws 2, 3 as an extension of the wear protection of the claddings 11 and 12, with the insert parts 4 and 5 provided. The designation "reversing screw" indicates the special property of these screws, because both reversing screws change their conveying direction in the reverse direction in which their pitch angles are inverted. Another important property of the two reversing screws 2, 3 is that they rotate in opposite and combing ways. In the area of the reversal points of the helix angles of the screws 2, 3, combing takes place in such a way that the turning ones
ERSATZBLATT Windungen der Umkehrschnecken 2,3 wie pfeilverzahnte Zahnräder sich abwälzen. Von dem Eintritt 7 gelangt das Medium in den Schneckenkanal der Schnecken 2,3 und wird durch die gegenläufige Drehung zwangsweise in den einzelnen, (von den Windungen des Schneckenkanals, der Ge¬ häuseinnenwand, der aus den Plattierungen 11,12 und den bei¬ den Einsatzteilen 4,5 besteht, der kämmenden Schnecke 2,3) abgeschlossenen Gängen bis zu den Wendepunkten gefördert. Gegen diesen Massenstrom drückt sich, ab dem Wendepunkt, der in Umkehrrichtung geförderte Massentransport. Entεprecher: dem Gegendruck der Umkehrrichtung wird die Reibungskraft im Medium erhöht. Die Windung der Umkehrrichtung lässt schliesslich den Massentransport des Mediums zum Austritt 8 vorrücken.REPLACEMENT LEAF Turns of the reversing worms 2,3 roll like arrow-toothed gears. From the inlet 7, the medium reaches the screw channel of the screws 2, 3 and is forced by the counter-rotation in the individual (from the turns of the screw channel, the inner wall of the housing, which consists of the claddings 11, 12 and the two Insert parts 4.5, the intermeshing screw 2,3) closed gears conveyed to the turning points. From the turning point, the mass transport promoted in the opposite direction presses against this mass flow. Corresponding: the counter pressure of the reverse direction increases the frictional force in the medium. The turn of the reverse direction finally allows the mass transport of the medium to advance to the outlet 8.
Wird mit der Verstellspindel 20 der Einsatzteil 5 zu der Frontplatte 18 des Gehäuses 1 gezogen, schliesst oder verengt sich der Austritt 8 des Mediums und als Folge der ZwangsfOrderung steigt der Schneckendruck. Analog senkt sich der Schneckendruck, wenn der Austritt 8 mit dem Zurückschieben des Einsatzteils erweitert wird. Die Bedienung der Verstellspindel 20 kann sowohl von Hand, wie von einem nicht gezeigten, gesteuerten oder geregelten Antrieb erfolgen. Als Regelgröεse kann die Qualität des Mediums, wie ein in der Frontplatte 18 befindliches Lager der Schnecken 2,3, oder ein zwischen dem Einsatzteil 5 und dem Boden des Gehäuses 1 integrierter, nicht gezeigter Druckaufnehmer dienen. Für die Abnützung ist die Austritt 8 zugewandte, exponierte Zone des Eisatzteils 5 massgebend. Die symmetrische Gestaltung des Eisatzteils 5 lässt dieIf the insert part 5 is pulled to the front plate 18 of the housing 1 with the adjusting spindle 20, the outlet 8 of the medium closes or narrows and the screw pressure increases as a result of the constraint. Similarly, the screw pressure drops when the outlet 8 is expanded by pushing back the insert. The adjustment spindle 20 can be operated both by hand and by a controlled or regulated drive (not shown). The quality of the medium, such as a bearing of the screws 2, 3 located in the front plate 18, or a pressure sensor (not shown) integrated between the insert part 5 and the bottom of the housing 1 can serve as a control variable. The exposed area of the exposed part 5 facing the outlet 8 is decisive for the wear. The symmetrical design of the Eisatzteil 5 leaves the
ERSATZBLATT Wendung des Einsatzteils 5 und damit die Verdoppelung der Lebensdauer zu. Wird die Verstellspindel 20 auf die Lagerbockseite 17 angeordnet, dann ist der Ausbau des Einsatzteils 5, wie des Einsatzteils 4, durch die Frontplatte 18 ohne Zerlegung der Doppelschneckenpresse möglich.REPLACEMENT LEAF Turn of the insert 5 and thus doubling the life. If the adjusting spindle 20 is arranged on the bearing block side 17, the insert part 5, like the insert part 4, can be removed through the front plate 18 without disassembling the twin-screw press.
Je nach Bedarf kann das Gehäuse 1 der Doppelschneckenpresse mit einer, nicht gezeigten, gemeinsamen und/oder beliebig unterteilten Ummantelung versehen sein, die die Erwärmung und/oder die Kühlung gestattet.Depending on requirements, the housing 1 of the twin-screw press can be provided with a casing (not shown) that is common and / or subdivided as desired, which allows heating and / or cooling.
ERSATZBLATT REPLACEMENT LEAF

Claims

PATENTANSPRÜCHE PATENT CLAIMS
1. Gehäuse (1) zur Schneckenpresse, mit mindestens zwei gegenläufigen, sich kämmenden Schnecken (2,3), dadurch gekennzeichnet, dass der Bereich der Durchdringung des Schneckenmantels, mindestens einen, der Trajektorie des Schneckenmantels und dem Gehäuse (1) passenden, Einsatzteil (4,5) aufweist.1. Housing (1) for the screw press, with at least two counter-rotating, intermeshing screws (2, 3), characterized in that the area of penetration of the screw shell, at least one insert part matching the trajectory of the screw shell and the housing (1) (4,5).
2. Gehäuse (1) zur Schneckenpresse, mit mindestens zwei gegenläufigen, sich kämmenden Schnecken (2,3), dadurch gekennzeichnet, dass die Schnecken (2,3) Umkehrschnek- ken sind, und der Bereich der Durchdringung des Schneckenmantels, mindestens einen, der Trajektorie des Schneckenmantels und dem Gehäuse (1) passenden, Einsatzteil (4,5) aufweist.2. Housing (1) for the screw press, with at least two counter-rotating, intermeshing screws (2, 3), characterized in that the screws (2, 3) are reversing screws, and the area of penetration of the screw shell, at least one, the trajectory of the screw shell and the housing (1) matching insert (4,5).
3. Gehäuse (1) zur Schneckenpresse nach den Ansprüchen 1 und 2 dadurch gekennzeichnet, dass der Einsatzteil (4) mit dem Gehäuse (1) der Schneckenpresse kraftschlüssig verbunden ist.3. Housing (1) for screw press according to claims 1 and 2, characterized in that the insert part (4) with the housing (1) of the screw press is non-positively connected.
ERSATZBLATT 4. Gehäuse (1) zur Schneckenpresse nach den Ansprüchen 1 und 2 dadurch gekennzeichnet, dass der Einsatzteil (5) zu den Schnecken (2,3) parallel verschiebbar ist.REPLACEMENT LEAF 4th Housing (1) for the screw press according to claims 1 and 2, characterized in that the insert part (5) is displaceable parallel to the screws (2, 3).
5. Gehäuse (1) zur Schneckenpresse nach den Ansprüchen 1 bis 4 dadurch gekennzeichnet, dass der Einsatzteil (4,5) kürzer als die Schnecke (2,3) ist.5. Housing (1) for screw press according to claims 1 to 4, characterized in that the insert part (4,5) is shorter than the screw (2,3).
6. Gehäuse (1) zur Schneckenpresse nach den Ansprüchen 1,2 und 4 bis 5 dadurch gekennzeichnet, dass der Ein¬ satzteil (5) verstellbar und arretierbar ist.6. Housing (1) for screw press according to claims 1, 2 and 4 to 5, characterized in that the insert part (5) is adjustable and lockable.
7. Gehäuse (1) zur Schneckenpresse nach den Ansprüchen 1 bis 6 dadurch gekennzeichnet, dass der Einsatzteil (4,5) aus verschleissfestem Werkstoff gefertigt ist.7. housing (1) for screw press according to claims 1 to 6, characterized in that the insert (4,5) is made of wear-resistant material.
8. Gehäuse (1) zur Schneckenpresse nach den Ansprüchen 1 bis 7 dadurch gekennzeichnet, dass der Eisatzteil durch die Stirnseite des Gehäuses (1) ersetzbar ist.8. Housing (1) for screw press according to claims 1 to 7, characterized in that the ice part through the end face of the housing (1) can be replaced.
9. Gehäuse (1) zur Schneckenpresse nach den Ansprüchen 1 bis 8 dadurch gekennzeichnet, dass die Zylinderflächen der Einsatzteile (4,5) mit den Schnecken (2,3) gleich- achsige Gewindegänge aufweisen.9. Housing (1) for screw press according to claims 1 to 8, characterized in that the cylindrical surfaces of the insert parts (4,5) with the screws (2,3) have coaxial threads.
ERSATZBLATT REPLACEMENT LEAF
10. Gehäuse (1) zur Schneckenpresse nach den Ansprüchen 1 bis 9 dadurch gekennzeichnet, dass im Bereich der Durchdringung des Schneckenmantels das Gehäuse einen Eintritt (7) und einen Austritt (8) für das Medium aufweist und dass dieser Ein- (7) und Austritt (8) im Bereich der gegenüberliegenden Enden des Gehäuses (1) angeordnet ist.10. Housing (1) for screw press according to claims 1 to 9, characterized in that in the area of penetration of the screw shell, the housing has an inlet (7) and an outlet (8) for the medium and that this inlet (7) and Outlet (8) is arranged in the region of the opposite ends of the housing (1).
ERSATZBLATT REPLACEMENT LEAF
EP94901728A 1992-12-31 1993-12-29 Housing for a worm-gear press Ceased EP0627979A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH3999/92 1992-12-31
CH03999/92A CH695764A5 (en) 1992-12-31 1992-12-31 Twin-screw extruder.
PCT/CH1993/000294 WO1994015769A1 (en) 1992-12-31 1993-12-29 Housing for a worm-gear press

Publications (1)

Publication Number Publication Date
EP0627979A1 true EP0627979A1 (en) 1994-12-14

Family

ID=4267927

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94901728A Ceased EP0627979A1 (en) 1992-12-31 1993-12-29 Housing for a worm-gear press

Country Status (8)

Country Link
US (1) US5603564A (en)
EP (1) EP0627979A1 (en)
JP (1) JP3428994B2 (en)
KR (1) KR100311120B1 (en)
AU (1) AU5622094A (en)
CA (1) CA2131297A1 (en)
CH (1) CH695764A5 (en)
WO (1) WO1994015769A1 (en)

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Also Published As

Publication number Publication date
WO1994015769A1 (en) 1994-07-21
JP3428994B2 (en) 2003-07-22
KR100311120B1 (en) 2001-12-15
US5603564A (en) 1997-02-18
AU5622094A (en) 1994-08-15
JPH07504372A (en) 1995-05-18
KR950700161A (en) 1995-01-16
CA2131297A1 (en) 1994-07-21
CH695764A5 (en) 2006-08-31

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