EP0108763A1 - Screw press with juxtaposed screws. - Google Patents

Screw press with juxtaposed screws.

Info

Publication number
EP0108763A1
EP0108763A1 EP83901356A EP83901356A EP0108763A1 EP 0108763 A1 EP0108763 A1 EP 0108763A1 EP 83901356 A EP83901356 A EP 83901356A EP 83901356 A EP83901356 A EP 83901356A EP 0108763 A1 EP0108763 A1 EP 0108763A1
Authority
EP
European Patent Office
Prior art keywords
screw
screws
screw press
housing
gear
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
EP83901356A
Other languages
German (de)
French (fr)
Other versions
EP0108763B1 (en
Inventor
Max Gutknecht
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT83901356T priority Critical patent/ATE23483T1/en
Publication of EP0108763A1 publication Critical patent/EP0108763A1/en
Application granted granted Critical
Publication of EP0108763B1 publication Critical patent/EP0108763B1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/12—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing
    • B30B9/121—Screw constructions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/12—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/12—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing
    • B30B9/16—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing operating with two or more screws or worms

Definitions

  • the invention relates to a method for reducing the volume of materials by pressing in a screw press and a screw press for carrying out this method.
  • Screw presses are known in many embodiments. They are used primarily in the plastics processing industry, and they are used to manufacture semi-finished plastic products, but also finished products of various types. It is now known that when processing different plastics, it is necessary to design the screw presses and in particular the screw according to the material to be processed. This leads to a large number of different types of screw presses. The range of screw press manufacturers is correspondingly large.
  • Materials are understood to mean free-flowing and free-flowing mixtures of preferably organic substances, waste and mixtures of various types, for example sewage sludge, manure, waste or the like.
  • inorganic mixtures e.g. Waste from the chemical industry, understood, which must be processed in such a way that it becomes harmless or can be easily destroyed.
  • This object is achieved according to the invention in that the pressing process is carried out in stages, the material being subjected to a throttle treatment after each treatment stage.
  • the screw press according to the invention for carrying out the method according to the invention is characterized in that the housing is subdivided into housing elements, between which there is a throttle disk which blocks the free cross section of the screws by forming a passage gap at the core circumference of the screws.
  • FIG. 1 is a side view of a screw press according to the "invention
  • FIG. 2 is a plan view of the screw press of FIG. 1, partially in section,
  • FIGS. 1 and 2 are views of a throttle disk used in the screw press according to FIGS. 1 and 2;
  • FIGS. 1 and 2 shows a schematic illustration of the use of the screw press according to FIGS. 1 and 2 when processing a green mass, e.g. Grass.
  • the two-screw press shown in FIGS. 1 and 2 has a housing 1, which is composed of housing elements 2, 3, 4, 5, 6, the housing element 2 deviating from the other housing elements 3 - 6 and a loading opening 7 having.
  • the housing elements 2 - 6 are connected to one another by screws 8 or screw bolts 9.
  • Screw elements 14 are attached to a worm shaft 12, 13, the length of which corresponds to that of the housing elements 2-6. They can be single or multi-course and have the same or a different pitch. The sequence of the screw elements 14 and their number can be adapted to the respective material to be processed.
  • a tensioning shaft 15 is screwed in, which extends through the screw elements 14 to the end of the last screw element 'and carries at its end a tensioning flange 16 into which tensioning screws 17 are screwed in are mounted in a clamping head 18 supported in the last screw element 14 and, by turning, enable the clamping shaft 15 and thus the screw elements 14 to be tensioned.
  • a throttle disc is arranged between the individual housing elements 3 - 6, the design of which can be seen in FIG. 3.
  • the throttle disc 19, with which a narrow gap is formed around the core diameter of the screw elements 14, is composed of two parts 20, 21, which have corresponding bores 22 or slots 23, with the aid of which they are located between the housing elements 3 - 6 are held by the bolts 9.
  • the slots 23 in the apex part 21 allow the gap between the throttle disk 19 and the core diameter of the screw elements 14 to be set differently.
  • the throttle disk 19 enables the most varied of materials to be processed practically with the same screw press.
  • the housing elements 3 - 6, which are, for example, in two parts in FIGS. 1 and 2, and the screw elements 14 need not be changed. An adaptation to different types of materials can be achieved in a simple manner by the housing 1
  • the two worm shafts 12, 13 protrude from the housing 1 on the inlet side and extend through a toothed wheel gear and are supported on an axial bearing 24.
  • the support can be done in different ways, e.g. through axial rolling bearings. It is essential here that the force exerted by the two worm shafts 12, 13 on the axial bearing 24 is diverted to the housing 1 via tie rods 25 which are fastened in the housing 1, as a result of which a self-contained flow of force is achieved.
  • the gear 26, preferably a gear transmission, serves to couple a drive motor and to drive the two worm shafts 12, 13 via the gear 26.
  • An expansion pressure sensor 27 is provided between the housing 1 and the gear 26.
  • the worm shafts 12, 13 passing through the expansion pressure sensor 27 are supported therein by means of bearings. If spreading forces occur on the worm shafts 12, 13, these are supported via their bearings on the spreading pressure sensor 27.
  • the expansion pressure transducer 27 is not supported on the housing 1 or on the gear 26, but is guided loosely on the tie rods 25.
  • a shaping or briquetting head 28 is attached to the exit side of the screw press. The material emerging from the screw press can thereby be given a specific shape. Guides 29 serve to discharge the ejected material.
  • One or more openings 30 can be arranged in the housing elements 3 - 6 above and / or below. Juice that collects or flows out during the pressing process
  • the screw press can be adapted to the respective requirements without significant changes.
  • FIG. 4 schematically shows a plant for processing green mass, e.g. Grass, shown.
  • the screw shafts 12, 13 of the screw press are driven via the gear 26 by a motor 31 which is coupled to a second motor 32.
  • the juice squeezed out of the green mass is drawn in by a peristaltic pump 33 and conveyed into a flocculation container 34.
  • the flocculant is added by means of a schematically indicated device 35, the gel which is formed in this case being discharged through a line 36 and the rest of the liquid through a line 37.
  • the hose punch 33 can be designed in accordance with the embodiment described in the simultaneously filed patent of the same inventor (CH 3063/82 from May 15, 1982), while the overall system according to FIG .82) works.
  • the two further openings 31 serve to extract vapors through a fan 39 or a vacuum pump via a line 38.
  • the screw press described thus solves the problem of drying materials on the one hand and simultaneously briquetting on the other hand. Liquids and vapors obtained here can be easily suctioned off and processed separately. It is essential that the press described consists of standardized elements, i.e. can be assembled from the housing elements 2-6 and the screw elements 14, wherein the corresponding number of standardized throttle disks 19 can also be used. It has been with
  • OMPI _ Operation of such a press has surprisingly shown that the power consumption of the screw press is relatively low, so that compared to other drying processes there is a lower power requirement, and that a multitude of functions can be solved with the described method and the described screw press.
  • the mechanical drying ie without the addition of heat, and the hygienization that can be achieved with it, that is to say extensive sterility and the storage life of the end product that can be achieved thereby.
  • the adaptation of the screw press to the different materials to be processed, which vary greatly in composition, is determined by the number and arrangement of the screw elements 14, for example with opposite pitch, and - in the case of two screws 10, 11 - by the operating mode, for example with counter-clockwise or counter-clockwise rotation and with clockwise or counter-clockwise rotation of both screws, achieved quickly and easily.
  • the material of the screw elements 14 is expediently resistant to abrasion, for example high-alloy steel, which can also be equipped with hard metal on heavily wearing parts.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Solid Wastes (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Press Drives And Press Lines (AREA)
  • Treatment Of Sludge (AREA)
  • Paper (AREA)

Abstract

La presse à vis présente un bâti (1) composé d'éléments de bâti (2-6), dans lequel sont placées deux vis (10, 11) formées d'éléments de vis (14). Entre les éléments de bâti (3-6) sont disposés des disques d'étranglement (19) qui réduisent le passage des vis (10) jusqu'à une fente d'étranglement. Les vis (10, 11) sont entraînées par un engrenage (26). Les arbres des vis s'étendent à travers l'engrenage (26) et s'appuient sur un palier axial qui est fixé au bâti par des barres de traction (25). Par cet agencement la presse à vis peut être utilisée pour le travail de matériaux très différents sans transformation importante, le liquide contenu dans le matériau pouvant être aspiré et la matière solide séchée et mise en brique par une tête de moulage.The screw press has a frame (1) consisting of frame elements (2-6), in which two screws (10, 11) formed from screw elements (14) are placed. Throttling discs (19) are arranged between the frame elements (3-6), which reduce the passage of the screws (10) to a throttle slot. The screws (10, 11) are driven by a gear (26). The screw shafts extend through the gear (26) and bear on an axial bearing which is attached to the frame by drawbars (25). By this arrangement the screw press can be used for working very different materials without significant transformation, the liquid contained in the material being able to be sucked up and the solid material dried and made into bricks by a molding head.

Description

Verfahren und Schneckenpresse zur Volumen¬ verringerung von Materialien Process and screw press for reducing the volume of materials
Die Erfindung betrifft ein Verfahren zur Volumenverringerung ' von Materialien durch Pressen in einer Schneckenpresse und eine Schneckenpresse zur Durchführung dieses Verfahrens.The invention relates to a method for reducing the volume of materials by pressing in a screw press and a screw press for carrying out this method.
Schneckenpressen sind in vielen Ausführungsformen bekannt. Sie sind vor allem in der Kunststoffverarbeitungsindustrie eingesetzt, und es werden mit ihrer Hilfe Kunststoff-Halb¬ fabrikate, aber auch -Fertigfabrikate verschiedenster For hergestellt. Nun ist es bekannt, dass es bei der Verarbeitung unterschiedlicher Kunststoffe erforderlich ist, die Schnek- kenpressen und insbesondere die Schnecke dem zu verarbeitenden Material entsprechend auszubilden. Dies führt zu einer grossen Zahl unterschiedlicher Bauarten der Schneckenpressen. Dement¬ sprechend gross ist auch das Angebot der Schneckenpressen¬ hersteller.Screw presses are known in many embodiments. They are used primarily in the plastics processing industry, and they are used to manufacture semi-finished plastic products, but also finished products of various types. It is now known that when processing different plastics, it is necessary to design the screw presses and in particular the screw according to the material to be processed. This leads to a large number of different types of screw presses. The range of screw press manufacturers is correspondingly large.
Ist es nun erforderlich, mittels einer Schneckenpresse ausser Kunststoffen weitere Materialien organischer oder anorgani¬ scher Herkunft zu verarbeiten, würde sich die Zahl der Schneckenpressentypen weiter vermehren. Im weiteren kommt hinzu, dass die Schneckenpressen eine verhältnis ässig komplizierte Maschine darstellen, die praktisch nur durch geschultes Personal bedient werden kann. Damit ergeben sich unter Umständen Schwierigkeiten, wenn solche Schnecken- "pressen beispielsweise in unterentwickelten Ländern einge¬ setzt werden können.If it is now necessary to use a screw press to process other materials of organic or inorganic origin in addition to plastics, the number of screw press types would increase further. Another factor is that the screw presses are relatively proportionate represent complicated machine that can only be operated practically by trained personnel. This results in difficulties in circumstances where such worm "presses example einge¬ in underdeveloped countries continues to be.
Auf dem Gebiet der Abfallverarbeitung ist es im Hinblick auf die Umweltbelastung immer dringlicher, Verfahren und Anlagen einsetzen zu können, mit denen die Abfallmaterialien mit geringem Energieaufwand verarbeitet und in eine Form übergeführt werden können, in der sie wieder eingesetzt oder leichter vernichtet, z.B. verbrannt, werden können.In the field of waste processing, it is becoming more and more urgent with regard to the environmental impact to be able to use processes and systems with which the waste materials can be processed with little energy expenditure and converted into a form in which they can be reused or more easily destroyed, e.g. can be burned.
Hier setzt die Erfindung ein, der die Aufgabe zugrunde¬ liegt, ein Verfahren und eine Schneckenpresse zur Verarbei¬ tung von Materialien so auszugestalten, dass zur Verarbei¬ tung einer grossen Zahl unterschiedlicher Materialien immer dieselben Verfahrensschritte eingesetzt werden können und damit die Schneckenpresse derart ausgebildet werden kann, dass der grundsätzliche Aufbau auch bei der Verarbeitung stark unterschiedlicher Materialien nicht geändert werden uss. Unter Materialien werden riesel- und fliessfähige Gemische aus vorzugsweise organischen Stoffen, Abfällen und Gemischen verschiedenster Art verstanden, beispielsweise Klärschlamm, Mist, Müll o.dgl. Es werden aber auch darunter anorganische Gemische, z.B. Abfälle aus der chemischen Industrie, verstanden, die so aufgearbeitet werden müssen, dass sie unschädlich werden oder leicht vernichtet werden können.This is where the invention comes in, which is based on the object of designing a method and a screw press for processing materials in such a way that the same method steps can always be used for processing a large number of different materials and thus the screw press is designed in this way It is possible that the basic structure cannot be changed even when processing very different materials. Materials are understood to mean free-flowing and free-flowing mixtures of preferably organic substances, waste and mixtures of various types, for example sewage sludge, manure, waste or the like. However, inorganic mixtures, e.g. Waste from the chemical industry, understood, which must be processed in such a way that it becomes harmless or can be easily destroyed.
Diese Aufgabe wird gemäss der Erfindung dadurch gelöst, dass der Press organg stufenweise durchgeführt wird, wobei das Material nach jeder Behandlungsstufe einer Drossel¬ behandlung unterworfen wird.This object is achieved according to the invention in that the pressing process is carried out in stages, the material being subjected to a throttle treatment after each treatment stage.
O PI Die erfindungsgemässe Schneckenpresse zur Durchführung des erfindungsge ässen Verfahrens kennzeichnet sich dadurch, dass das Gehäuse in Gehäuseelemente unterteilt ist, zwischen denen eine Drosselscheibe liegt, die den freien Querschnitt der Schnecken unter Bildung eines Durchgangs¬ spaltes am Kernumfang der Schnecken sperrt.O PI The screw press according to the invention for carrying out the method according to the invention is characterized in that the housing is subdivided into housing elements, between which there is a throttle disk which blocks the free cross section of the screws by forming a passage gap at the core circumference of the screws.
Die Erfindung ist in der Zeichnung in einem Ausführungs¬ beispiel dargestellt und nachfolgend beschrieben. Es zeigen:The invention is shown in the drawing in an exemplary embodiment and described below. Show it:
Fig. 1 eine Seitenansicht einer Schneckenpresse gemäss der"Erfindung,1 is a side view of a screw press according to the "invention,
Fig. 2 eine Draufsicht der Schneckenpresse nach Fig. 1, teilweise im Schnitt,2 is a plan view of the screw press of FIG. 1, partially in section,
Fig. 3 eine Ansicht einer in der Schneckenpresse nach Fig. 1 und 2 eingesetzten Drossel- εcheibe und3 is a view of a throttle disk used in the screw press according to FIGS. 1 and 2;
Fig. 4 eine εchematische Darstellung des Einsatzes der Schneckenpresse nach Fig. 1 und 2 bei der Verarbeitung einer Grünmasse, z.B. Gras.4 shows a schematic illustration of the use of the screw press according to FIGS. 1 and 2 when processing a green mass, e.g. Grass.
Die in Fig. 1 und 2 dargestellte Zwei-Schneckenpresse weist ein Gehäuse 1 auf, das aus Gehäuseelementen 2, 3, 4, 5, 6 zusammengesetzt ist, wobei das Gehäuseelement 2 von den übrigen Gehäuseelementen 3 - 6 abweicht und eine Beschickungs¬ öffnung 7 aufweist. Die Gehäuseelemente 2 - 6 sind durch Schrauben 8 oder Schraubenbolzen 9 miteinander verbunden.The two-screw press shown in FIGS. 1 and 2 has a housing 1, which is composed of housing elements 2, 3, 4, 5, 6, the housing element 2 deviating from the other housing elements 3 - 6 and a loading opening 7 having. The housing elements 2 - 6 are connected to one another by screws 8 or screw bolts 9.
Im Innern des Gehäuses 1 sind zwei Schnecken 10, 11 gelagert, die aus mehreren Teilen zusammengesetzt sind, siehe Fig. 1.Inside the housing 1, two screws 10, 11 are mounted, which are composed of several parts, see FIG. 1.
-$fKEÄ O PI Auf einer Schneckenwelle 12, 13 sind Schneckenelemente 14 aufgesteckt, deren Länge derjenigen der Gehäuseelemente 2 - 6 entspricht. Sie können ein- oder mehrgängig sowie mit der gleichen oder einer unterschiedlichen Steigung versehen sein. Die Folge der Schneckenelemente 14 und ihre Zahl kann dem jeweiligen zu verarbeitenden Material angepasst werden. An der Stirnseite der Schneckenwellen 12, 13 ist eine Spann- welle 15 eingeschraubt, die sich durch die Schneckenele¬ mente 14 bis gegen das Ende des letzten Schneckenelementes ' erstreckt und an ihrem Ende einen Spannflansch 16 trägt, in den Spannschrauben 17 eingeschraubt werden, die in einem im letzten Schneckenelement 14 abgestützten Spannkopf 18 gelagert sind und durch Drehen das Spannen der Spannwelle 15 und damit der Schneckenelemente 14 ermöglichen.- $ fKEÄ O PI Screw elements 14 are attached to a worm shaft 12, 13, the length of which corresponds to that of the housing elements 2-6. They can be single or multi-course and have the same or a different pitch. The sequence of the screw elements 14 and their number can be adapted to the respective material to be processed. On the end face of the worm shafts 12, 13, a tensioning shaft 15 is screwed in, which extends through the screw elements 14 to the end of the last screw element 'and carries at its end a tensioning flange 16 into which tensioning screws 17 are screwed in are mounted in a clamping head 18 supported in the last screw element 14 and, by turning, enable the clamping shaft 15 and thus the screw elements 14 to be tensioned.
Zwischen den einzelnen Gehäuseelementen 3 - 6 ist eine Drosselscheibe angeordnet, deren Ausbildung aus Fig. 3 ersichtlich ist. Die Drosselscheibe 19, mit der ein enger Spalt um den Kerndurchmesser der Schneckenelemente 14 gebil¬ det wird, setzt sich aus zwei Teilen 20, 21 zusammen, die entsprechende Bohrungen 22 bzw. Schlitze 23 aufweisen, mit Hilfe welcher sie zwischen den Gehäuseelementen 3 — 6 durch die Schraubenbolzen 9 gehalten sind. Die Schlitze 23 im scheitelseitigen Teil 21 ermöglichen eine unterschiedliche Einstellung des Spaltes zwischen der Drosselscheibe 19 und dem Kerndurchmesser der Schneckenelemente 14. Durch die Drosselscheibe 19 kann erreicht werden, dass die verschie¬ densten Materialien praktisch mit der gleichen Schnecken¬ presse verarbeitet werden können. Die Gehäuseelemente 3 - 6, die beispielsweise in Fig. 1 und 2 zweiteilig sind, und die Schneckenelemente 14 brauchen nicht verändert zu werden. Eine Anpassung an verschiedenartige Materialien kann in einfacher Weise dadurch erreicht werden, dass das Gehäuse 1A throttle disc is arranged between the individual housing elements 3 - 6, the design of which can be seen in FIG. 3. The throttle disc 19, with which a narrow gap is formed around the core diameter of the screw elements 14, is composed of two parts 20, 21, which have corresponding bores 22 or slots 23, with the aid of which they are located between the housing elements 3 - 6 are held by the bolts 9. The slots 23 in the apex part 21 allow the gap between the throttle disk 19 and the core diameter of the screw elements 14 to be set differently. The throttle disk 19 enables the most varied of materials to be processed practically with the same screw press. The housing elements 3 - 6, which are, for example, in two parts in FIGS. 1 and 2, and the screw elements 14 need not be changed. An adaptation to different types of materials can be achieved in a simple manner by the housing 1
OMPI und dementsprechend die Schnecken 10, 11 durch Zufügen oderOMPI and accordingly the screws 10, 11 by adding or
Wegnehmen "weiterer Gehäuse- und Schneckenelemente verändert wird.Take away " further housing and screw elements is changed.
Die beiden Schneckenwellen 12, 13 ragen auf der Eintritt¬ seite aus dem Gehäuse 1 und erstrecken sich durch ein Zahn¬ radgetriebe und stützen sich an einem Axiallager 24 ab. Die Abstützung kann auf verschiedene Weise erfolgen, z.B. durch Axialwälzlager. Wesentlich ist hierbei, dass die von den beiden Schneckenwellen 12, 13 auf das Axiallager 24 ausgeübte Kraft über Zugstangen 25, die im Gehäuse 1 befestigt sind, auf das Gehäuse 1 abgeleitet wird, wodurch ein in sich geschlossener Kraftfluss erreicht wird. Das Getriebe 26, vorzugsweise ein Zahnradgetriebe, dient dazu, einen Antriebsmotor anzukuppeln und über das Getriebe 26 die beiden Schneckenwellen 12, 13 anzutreiben.The two worm shafts 12, 13 protrude from the housing 1 on the inlet side and extend through a toothed wheel gear and are supported on an axial bearing 24. The support can be done in different ways, e.g. through axial rolling bearings. It is essential here that the force exerted by the two worm shafts 12, 13 on the axial bearing 24 is diverted to the housing 1 via tie rods 25 which are fastened in the housing 1, as a result of which a self-contained flow of force is achieved. The gear 26, preferably a gear transmission, serves to couple a drive motor and to drive the two worm shafts 12, 13 via the gear 26.
Zwischen dem Gehäuse 1 und dem Getriebe 26 ist ein Spreiz¬ druckaufnehmer 27 vorgesehen. Die durch den Spreizdruck¬ aufnehmer 27 durchgehenden Schneckenwellen 12, 13 werden darin mittels Lagern gelagert. Treten Spreizkräfte auf den Schneckenwellen 12, 13 auf, stützen sich diese über ihre Lager am Spreizdruckaufnehmer 27 ab. Der Spreizdruckauf¬ nehmer 27 wird nicht am Gehäuse 1 oder am Getriebe 26 abge¬ stützt, sondern ist lose an den Zugstangen 25 geführt. An der Austrittseite der Schneckenpresse ist ein Form- bzw. Brikettierkopf 28 befestigt. Dem aus der Schneckenpresse austretenden Material kann dadurch eine bestimmte Form gegeben werden. Führungen 29 dienen der Ableitung des aus- gestossenen Materials.An expansion pressure sensor 27 is provided between the housing 1 and the gear 26. The worm shafts 12, 13 passing through the expansion pressure sensor 27 are supported therein by means of bearings. If spreading forces occur on the worm shafts 12, 13, these are supported via their bearings on the spreading pressure sensor 27. The expansion pressure transducer 27 is not supported on the housing 1 or on the gear 26, but is guided loosely on the tie rods 25. A shaping or briquetting head 28 is attached to the exit side of the screw press. The material emerging from the screw press can thereby be given a specific shape. Guides 29 serve to discharge the ejected material.
In den Gehäuseelementen 3 - 6 können oben und/oder unten eine oder mehrere Oeffnungen 30 angeordnet sein. Dort kann während des PressVorgangs sich sammelnder oder ausfliessender SaftOne or more openings 30 can be arranged in the housing elements 3 - 6 above and / or below. Juice that collects or flows out during the pressing process
O PIO PI
W1PO . oder Dampf abgesaugt und einer weiteren Behandlung zugeleitet werden. Es ist hierbei auch möglich, dass aus den näher bei der Beεchickungεöffnung 7 liegenden Oeffnungen ausgepresster Saft und bei den weiter entfernten Oeffnungen Dampf abgesagt werden kann. Auch in dieser Hinsicht kann die Schneckenpresse ohne wesent¬ liche Aenderungen den jeweiligen Anforderungen angepasst werden.W1PO. or steam is sucked off and sent for further treatment. It is also possible here that juice squeezed out of the openings closer to the loading opening 7 and steam can be canceled at the openings further away. In this regard, too, the screw press can be adapted to the respective requirements without significant changes.
In Fig. 4 ist schematisch eine Anlage zur Verarbeitung von Grünmasεe, z.B. Gras, dargeεtellt. Die Schneckenwellen 12, 13 der Schneckenpresse werden über das Getriebe 26 durch einen Motor 31 angetrieben, der mit einem zw≥iten Motor 32 gekuppelt ist. Aus den ersten beiden Oeffnungen 30wird der aus der Grünmasse ausgepreεεte Saft von einer Schlauchpumpe 33 angesaugt und in einen Flockungs- behälter 34 gefördert. Dort wird durch eine schematisch angedeu¬ tete Vorrichtung 35 das Flockungsmittel zugegeben, wobei das sich hierbei bildende Gel durch eine Leitung 36 und die Rest lüεεigkeit durch eine Leitung 37 abgeleitet wird. Die Schlauchpunpe 33 kann ent¬ sprechend der in dem gleichzeitig hinterlegten Patentdesselben Erfinders (CH 3063/82 vom 15.5.82) beschriebenen Ausführung ausgebildet sein, während die Gesamtanlage nach Fig. 4 nach demArbeits¬ verfahreneines gleichzeitig hinterlegten Patents (CH 3061/82 vom 17.5.82) arbeitet. Die beiden weiteren Oeffnungen 31 dienen der Absaugung von Dämpfen durch einen Ventilator 39 oder eine Vakuumpumpe über eine Leitung 38.4 schematically shows a plant for processing green mass, e.g. Grass, shown. The screw shafts 12, 13 of the screw press are driven via the gear 26 by a motor 31 which is coupled to a second motor 32. From the first two openings 30, the juice squeezed out of the green mass is drawn in by a peristaltic pump 33 and conveyed into a flocculation container 34. There, the flocculant is added by means of a schematically indicated device 35, the gel which is formed in this case being discharged through a line 36 and the rest of the liquid through a line 37. The hose punch 33 can be designed in accordance with the embodiment described in the simultaneously filed patent of the same inventor (CH 3063/82 from May 15, 1982), while the overall system according to FIG .82) works. The two further openings 31 serve to extract vapors through a fan 39 or a vacuum pump via a line 38.
Die beεchriebe Schneckenpresse löst somit das Problem, Materialien einerseits zu trocknen und andererseits gleich¬ zeitig zu brikettieren. Hierbei anfallende Flüssigkeiten und Dämpfe können leicht abgesaugt und getrennt verarbeitet wer¬ den. Wesentlich ist, dass die beschrieben Presse aus standar- diεierten Elementen, d.h. aus den Gehäuseelementen 2 - 6 und den Schneckenelementen 14, zusammengesetzt werden kann, wobei auch die entsprechende Zahl standardisierter Drosεel- scheiben 19 eingesetzt werden kann. Es hat sich beimThe screw press described thus solves the problem of drying materials on the one hand and simultaneously briquetting on the other hand. Liquids and vapors obtained here can be easily suctioned off and processed separately. It is essential that the press described consists of standardized elements, i.e. can be assembled from the housing elements 2-6 and the screw elements 14, wherein the corresponding number of standardized throttle disks 19 can also be used. It has been with
OMPI _ Betrieb einer solchen Presse überraschend gezeigt, dass die Leistungsaufnahme der Schneckenpresse verhältnismässig gering ist, so dasε sich gegenüber anderen Trocknungsver¬ fahren ein geringerer Leistungsbedarf ergibt, und dass eine Vielzahl von Funktionen mit dem beschriebenen Verfahren und der beschriebenen Schneckenpresεe gelöst werden können. Von beεonderer Bedeutung sind die mechanische Trocknung, d.h. ohne Wärmezufuhr, und die damit erzielbare Hygienisierung, d.h. eine weitgehende Keimfreiheit und die damit erreichbare Lagerfähigkeit des Endproduktes. Die Anpassung der Schnecken¬ presse an die zu verarbeitenden unterschiedlichen und in der Zusammensetzung stark variierenden Materialien wird durch die Zahl und die Anordnung der Schneckenelemente 14, z.B. mit ent¬ gegengesetzter Steigung, und - bei zwei Schnecken 10, 11 - durch die Betriebsart, z.B. mit oben oder unten gegenläufiger Drehrichtung sowie mit Rechts- oder Linkslauf beider Schnecken, schnell und problemlos erreicht. Das Material der Schnecken¬ elemente 14 ist zweckmässig abriebfest, z.B. hochlegierter » Stahl, der an stark verschleissenden Partien noch mit Hart¬ metall bestückt sein kann. OMPI _ Operation of such a press has surprisingly shown that the power consumption of the screw press is relatively low, so that compared to other drying processes there is a lower power requirement, and that a multitude of functions can be solved with the described method and the described screw press. Of particular importance are the mechanical drying, ie without the addition of heat, and the hygienization that can be achieved with it, that is to say extensive sterility and the storage life of the end product that can be achieved thereby. The adaptation of the screw press to the different materials to be processed, which vary greatly in composition, is determined by the number and arrangement of the screw elements 14, for example with opposite pitch, and - in the case of two screws 10, 11 - by the operating mode, for example with counter-clockwise or counter-clockwise rotation and with clockwise or counter-clockwise rotation of both screws, achieved quickly and easily. The material of the screw elements 14 is expediently resistant to abrasion, for example high-alloy steel, which can also be equipped with hard metal on heavily wearing parts.

Claims

Patentanεprüche Claims
1. Verfahren zur Volumenverringerung von Materialien durch Preεεen in einer Schneckenpresse, dadurch gekenn¬ zeichnet, dass der Pressvorgang stufenweise durchgeführt wird, wobei das Material nach jeder Behandlungsεtufe einer Drosselbehandlung unterworfen wird.1. Method for reducing the volume of materials by pressing in a screw press, characterized in that the pressing process is carried out in stages, the material being subjected to a throttle treatment after each treatment stage.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die nach jeder Drosselbehandlung entstehende flüssige " oder dampfförmige Phase von der im Presεvorgang ver¬ bleibenden Feεtεtoffphase getrennt wird, z.B. durch Absaugen.2. The method according to claim 1, characterized in that the liquid " or vapor phase which is formed after each throttling treatment is separated from the solid phase remaining in the pressing process, for example by suction.
3. Schneckenpresse zur Durchführung des Verfahrens nach Anspruch 1 oder 2, bestehend aus einem Gehäuse (1), einer eintrittseitigen Beschickungsöffnung (7) , einem austrittseitigen Form- bzw. Brikettierkopf (28) und einer über ein Getriebe (26) angetriebenen Schneckenwelle (12, 13) , dadurch gekennzeichnet, dass das Gehäuse (1) in Gehäuseelemente (3 - 6) unterteilt ist, zwischen denen eine Drosselscheibe (19) liegt, die den freien Quer¬ schnitt der Schnecken (10, 11) unter Bildung eines Durch¬ gangsspaltes am Kernumfang der Schnecken (10, 11) sperrt.3. Screw press for performing the method according to claim 1 or 2, consisting of a housing (1), an inlet-side loading opening (7), an outlet-side molding or briquetting head (28) and a worm shaft (12) driven via a gear (26) , 13), characterized in that the housing (1) is subdivided into housing elements (3 - 6), between which there is a throttle disc (19) which provides the free cross section of the screws (10, 11) to form a through closes gap at the core circumference of the screws (10, 11).
4. Schneckenpresse nach Anspruch 3, dadurch gekennzeichnet, dass der Durchgangsspalt mindestens teilweise, z.B. über dem Scheitelbereich der Schnecke (10, 11), einstell¬ bar ist.4. Screw press according to claim 3, characterized in that the passage gap is at least partially, e.g. above the apex area of the screw (10, 11).
5. Schneckenpresse nach Anspruch 4, mit einer oder zwei Schnecken (10, 11) , dadurch gekennzeichnet, dass die Drosselεcheibe (19) zweiteilig ist, wobei der eine Teil (20) den bodenseitigen Durchgangsspalt und der andere Teil (21) den scheitelεeitigen Durchgangsspalt bildet, wobei der andere Teil (21) eine Breite aufweist, die bei einer Schnecke mindestens gleich dem Kerndurch-. meεser der Schnecke und bei zwei Schnecken mindestens gleich dem doppelten Kerndurchmesser und einer Schneckenzahnhöhe ist.5. Screw press according to claim 4, with one or two screws (10, 11), characterized in that the throttle disc (19) is in two parts, one part (20) forms the passage gap on the bottom and the other part (21) forms the passage gap on the apex side, the other part (21) having a width which is at least equal to the core diameter for a screw. meεser of the screw and with two screws is at least equal to twice the core diameter and a screw tooth height.
6. Schneckenpresse nach Anspruch 5, dadurch gekennzeichnet, dass der andere Teil (21) als einstellbarer Schieber ausgebildet ist.6. Screw press according to claim 5, characterized in that the other part (21) is designed as an adjustable slide.
7. Schneckenpresse nach Anspruch 3, dadurch gekennzeichnet, dass die Schnecke bzw. Schnecken (10, 11) mehrere, auf der Schneckenwelle (12, 13) aufgesteckte und mit einer Spannvorrichtung (15, 16, 17, 18) zusammengehaltene Schneckenelemente (14) aufweist bzw. aufweisen.7. Screw press according to claim 3, characterized in that the screw or screws (10, 11) a plurality of screw elements (14) attached to the screw shaft (12, 13) and held together with a tensioning device (15, 16, 17, 18). has or have.
8. Schneckenpresεe nach Anspruch 7, dadurch gekennzeichnet, dass die Spannvorrichtung eine an der Schneckenwelle (12, 13) stirnseitig befestigte Spannwelle (15) aufweist, die mittels eines Spannflansches (16) durch Spannschrauben (17) gespannt ist, die in einem am letzten Schnecken¬ element (14) abgestützten Spannkopf (18) gelagert sind.8. Schneckenpresεe according to claim 7, characterized in that the clamping device has a on the worm shaft (12, 13) attached to the end of the clamping shaft (15) which is clamped by means of a clamping flange (16) by clamping screws (17) which in one at the last Screw element (14) supported clamping head (18) are mounted.
9. Schneckenpresse nach Anspruch 3, dadurch gekennzeichnet, dass die Schneckenwelle (12, 13) εich durch das Getriebe9. Screw press according to claim 3, characterized in that the screw shaft (12, 13) εich through the gear
(26) erstreckt und auf der dem Gehäuse (1) abgewandten Seite axial in einem Axiallager (24) abgestützt ist, das durch Zugstangen (25) am ersten eintrittseitigen Gehäuseelement (2) befestigt ist.(26) extends and is axially supported on the side facing away from the housing (1) in an axial bearing (24) which is fastened to the first inlet-side housing element (2) by tie rods (25).
10. Schneckenpresse nach Anspruch 3, mit zwei Schnecken10. Screw press according to claim 3, with two screws
(10, 11) , dadurch gekennzeichnet, dass die Schnecken- wellen (12, 13) zwischen dem ersten eintrittεeitigen Gehäuseelement (2) und dem Getriebe (26) einen Spreiz¬ druckaufnehmer (27) aufweisen, der über Lager die Schneckenwellen (12, 13) in ihrer Lage hält. (10, 11), characterized in that the screw Shafts (12, 13) between the first inlet-side housing element (2) and the gear (26) have an expansion pressure sensor (27) which holds the screw shafts (12, 13) in position via bearings.
EP83901356A 1982-05-17 1983-05-09 Screw press with juxtaposed screws Expired EP0108763B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83901356T ATE23483T1 (en) 1982-05-17 1983-05-09 AUGER PRESS WITH AUXILIARY AUGERS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH306282 1982-05-17
CH3062/82 1982-05-17

Publications (2)

Publication Number Publication Date
EP0108763A1 true EP0108763A1 (en) 1984-05-23
EP0108763B1 EP0108763B1 (en) 1986-11-12

Family

ID=4247771

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83901356A Expired EP0108763B1 (en) 1982-05-17 1983-05-09 Screw press with juxtaposed screws

Country Status (11)

Country Link
US (1) US4599002A (en)
EP (1) EP0108763B1 (en)
JP (1) JPS59500855A (en)
CA (1) CA1227964A (en)
DE (1) DE3367555D1 (en)
DK (1) DK157065C (en)
FI (1) FI81046C (en)
HU (1) HU194088B (en)
IT (1) IT1169522B (en)
NZ (1) NZ204212A (en)
WO (1) WO1983003999A1 (en)

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RU179033U1 (en) * 2018-01-16 2018-04-25 Федеральное государственное бюджетное образовательное учреждение высшего образования "Волгоградский государственный технический университет" (ВолгГТУ) SCREW PRESS

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US5324530A (en) * 1993-05-24 1994-06-28 Nabisco, Inc. Apparatus and method for making extruded chewing gum
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Also Published As

Publication number Publication date
FI840123A (en) 1984-01-13
IT1169522B (en) 1987-06-03
DK18584D0 (en) 1984-01-16
DK157065C (en) 1990-03-26
WO1983003999A1 (en) 1983-11-24
FI840123A0 (en) 1984-01-13
HU194088B (en) 1988-01-28
FI81046C (en) 1990-09-10
HUT36405A (en) 1985-09-30
US4599002A (en) 1986-07-08
DK18584A (en) 1984-01-16
FI81046B (en) 1990-05-31
JPS59500855A (en) 1984-05-17
DE3367555D1 (en) 1987-01-02
EP0108763B1 (en) 1986-11-12
IT8321127A0 (en) 1983-05-17
NZ204212A (en) 1986-09-10
DK157065B (en) 1989-11-06
JPH0318998B2 (en) 1991-03-13
CA1227964A (en) 1987-10-13

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