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WO1990009275A1 - Screw extruder, in particular for crushing materials such as organic refuse or the like - Google Patents

Screw extruder, in particular for crushing materials such as organic refuse or the like Download PDF

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Publication number
WO1990009275A1
WO1990009275A1 PCT/EP1990/000222 EP9000222W WO9009275A1 WO 1990009275 A1 WO1990009275 A1 WO 1990009275A1 EP 9000222 W EP9000222 W EP 9000222W WO 9009275 A1 WO9009275 A1 WO 9009275A1
Authority
WO
WIPO (PCT)
Prior art keywords
screw
screw press
press according
axis
housing
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
PCT/EP1990/000222
Other languages
German (de)
French (fr)
Inventor
Wilfried Schraufstetter
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
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO1990009275A1 publication Critical patent/WO1990009275A1/en
Anticipated expiration legal-status Critical
Ceased 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
    • B30B9/26—Permeable casings or strainers
    • 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
    • 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
    • B30B9/18—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 with means for adjusting the outlet for the solid

Definitions

  • Screw press in particular for comminuting materials such as organic waste or the like.
  • the invention relates to a screw press which preferably has two screws, in particular for comminuting materials according to the preamble of claim 1.
  • a generic screw press is known from O-A-83 / 03.999.
  • This known screw press has two screws, which are rotatably mounted in a housing and interlock. Both the housing and the screws are of multi-part design, as seen in the longitudinal direction of the screw axes, so that the length of the screw press can be changed as desired in a modular manner and individual housing and screw elements can also be exchanged for others. There, the individual housing elements are divided into two halves in the plane formed by the two axes of the screws.
  • the input-side housing element of the known screw press has a filling opening in its upper lateral surface, while on the front side of the output-side housing element a die is arranged on an end plate, through which the processed material in the form of briquettes, chips or the like can be dissipated.
  • the other housing elements have a casing, which is formed concentrically with the two screws and immediately surrounds them.
  • the two screws preferably run in opposite directions, so that material filled into the screw press is not only moved axially, but is also compressed again and again between the two screws.
  • the degree of drying cannot be increased further.
  • the degree of drying is usually around 60% residual moisture.
  • the object of the invention is therefore to create a generic screw press in which the residual moisture can be reduced even further.
  • the screw press according to the invention in particular for comminuting materials, such as organic waste or the like, with in particular two intermeshing screws which circulate in a housing which directly envelops the screws and with an end plate at the outlet end of the screw press, one of the two screws is now extended through the end plate and this extension is surrounded by at least one housing part.
  • the material to be processed is processed again using a single screw. As a result, a greater degree of dryness is achieved than by lengthening both screws of the screw press.
  • the residual moisture can be brought down to 40% with the screw press according to the invention.
  • a plurality of housing parts which are connected to one another are provided, and the extension of the screw also consists of individual extension pieces.
  • the extension can be adapted depending on the requirements and the material to be processed.
  • the last housing part is preferably slightly beyond the end of the elongated screw, whereby a special closing device can be attached to this end of the screw press, which will be discussed in more detail below.
  • the housing parts essentially consist of a cylindrical jacket surrounding the screw and preferably have flanges with bores at their axial ends.
  • the housing parts therefore directly surround the screw.
  • housing parts also have openings in their jacket through which liquid, vapors or the like can escape.
  • the openings of the individual housing parts are preferably made ever larger towards the end of the screw from housing part to housing part.
  • the first housing part is fixed to the end plate, in particular screwed on.
  • the other housing parts are each fixed only to their neighboring housing part. A separate storage of the extension is therefore unnecessary.
  • the space around the housing parts from which liquids escape is also free of components.
  • At least two connecting pieces are now arranged, preferably welded, on the end plate, each of which has a flange at its free ends.
  • another nozzle is detachably arranged, preferably screwed, by means of a flange.
  • several nozzles are arranged on one axis, the number of nozzles on each axis corresponding.
  • the two last connecting pieces are connected to each other via a support and the axis of this support is preferably perpendicular to the axis of the screw.
  • a pressure plate which is convex toward the end plate is fixed by means of a pressure pin, the pressure pin and the axis of the pressure plate being arranged in the axis of the screw.
  • the machined solids then exit axially from the screw press in the annular gap between the pressure plate and the last housing part.
  • the pressure plate can be adjusted by means of the pressure bolt so that it can be moved towards or away from the last housing part and this setting can be secured by means of a nut or the like. The size of this axial outlet opening of the screw press can thus be varied - even during operation.
  • the axial lengths of a screw extension piece, a housing part and a socket are the same size, so that the length of the screw press can be changed by adding or removing a screw extension piece, a housing part and a socket pair.
  • the number of housing parts and the screw extension pieces is one less than the number of nozzles arranged on an axis.
  • Figure 1 is a plan view of an end plate
  • FIG. 2 shows a schematic illustration of elements to be attached to this end plate.
  • a screw press not shown in total, with two screws, such as e.g. in WO-A-83 / 03.999 and described above, has an end plate 1 at its output end.
  • Figures 1 and 2 show only this output end of such a screw press with the end plate 1, which can for example be detachably mounted by means of screws on end flanges of the last housing element of the screw press.
  • This end plate 1 is thus in a plane perpendicular to the axes of the screws.
  • the axes of the screws in FIG. 1 are perpendicular to the plane of the drawing, in FIG. 2 they are parallel to the plane of the drawing.
  • the two screws of such a screw press intermesh, so that their outer circumferences overlap. Between the two screws rotating against each other, there is an entry wedge in front of the gap between them, in which the material is inserted between the two screws and pressed particularly strongly in the process.
  • the pressures on the material which can be between 20 and 50 bar, are greatest in this range. The greatest possible pressure prevails directly in the plane formed by the screw axes, while the pressure is smaller therefrom.
  • the end plate used here has a horizontal width which corresponds to approximately four thirds of its (vertical) height and is essentially rectangular, the corners being cut off. This shape corresponds to the end flanges of the housing elements of the screw press on which the end plate is mounted.
  • the outlines of the end plate 1 thus depend essentially on the design of the housing of the screw press.
  • bores 2 are provided in the end plate on its periphery, through which screws can be passed, which also penetrate corresponding bores in the press housing.
  • the end plate 1 has now seen in the extension of a screw a circular opening 3, the diameter of which corresponds approximately to the outside diameter of this screw.
  • This diameter here has a size which corresponds to approximately half the height of the end plate, i.e. the height of the end plate is approximately twice as large as the diameter of a screw.
  • the axis of this opening is from the central axis of the end plate. removed. It has to be taken into account that the two screws of the screw press intermesh and that the two screw axes are equidistant from the central axis of the screw press.
  • sockets 5 are screwed to their edges, each of which carries a flange 6 at its free end.
  • FIG. 2 six further connecting pieces 7 and 8 are flanged onto these flanges 6.
  • a carrier 9 is fixed, in particular welded, to the two last connecting pieces 8, which connects these two last connecting pieces 8 to one another. This carrier 9 thus lies in the plane spanned by the axes of the screws.
  • housing parts 11 are now provided, each having flanges 12 at their axial ends, which are in particular welded on. Several such housing parts 11 can thus be assembled from flange 12 to flange 12 to form a housing extension. Only three housing parts 11 are drawn here. Between these and the housing part 11 assigned to the end plate 1 and the end plate 1, further housing parts 11, not shown, are provided, which are screwed to one another or to the end plate 1. In general, it can be said that the total number of housing parts 11 is fixed in accordance with the total number of nozzles 5, and the latter is always one less than the total number of nozzles 5.
  • the entirety of the housing parts 11 is only fixed on the end plate 1; the last, the carrier 7 facing housing part 11 is fixed only on its adjacent housing part.
  • a plate-shaped pressure plate 13 which is curved convexly towards the end plate 1 of the screw press and whose axis lies in the axis of the screw and thus in the axis of the housing parts 11, is now fixed on the carrier 7.
  • This pressure plate 13 has in its axis a pressure bolt 14 which is fixed to the support 9 penetratingly in such a way that the distance of the pressure plate 13 from the support 9 and thus also from the last housing part 11 ′′ is adjustable.
  • This pressure bolt 13 can have, for example, an external thread which meshes with an internal thread in the carrier 9.
  • a nut 15 secures the pressure bolt 14 against rotation during operation of the screw press.
  • the diameter of the pressure plate 13 corresponds approximately to the average diameter of the flanges 12 of the housing parts 11, ie it is larger than the inner diameter of the housing parts 11. If the pressure plate 13 is directly up to the last housing parts 11 '' or their last flange 12 moves, the housing formed by the housing parts 11 is closed at this end.
  • the one screw penetrating the end plate 1 is now extended to just before the pressure plate 13, i.e. it extends almost up to the pressure plate 13.
  • the screw can be extended by individual screw sections, e.g. are connected to one another by positive connections which are shown and described in DE-A-3.714.506. However, such a connection can also be obtained by other known shaft connections.
  • the individual screw sections, the housing parts 11 and the support 9 holding sockets 5, 7 and 8 now all have the same axial length, so that the screw press in the area of a single ⁇ by adding or removing a corresponding number of components
  • the screw can be lengthened or shortened in a modular manner according to the special needs. This depends in particular on the material to be processed in the screw press and the desired product properties.
  • housing parts 11 have openings 16 and 17 on their circumference, which can be of different designs.
  • the housing part 11 'adjacent to the end plate 1' has slot-shaped openings 16 ', the slots being arranged parallel to the axis of this housing part 11' 'and thus parallel to the axis of the screw.
  • the middle housing part 11 ′′ has slot-shaped openings 16 ′′, the slots being arranged in the circumferential direction of the housing part 11 and thus in the direction of rotation of the screw.
  • the housing part 11 "'adjacent to the carrier 9 has bores 17 which are aligned with the axis of this housing part 11'" and are thus arranged perpendicular to the axis of the screw.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Solid Wastes (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

A screw extruder, in particular for crushing materials such as organic refuse or the like, comprises, in particular, two interlocking screws which rotate in a housing immediately surrounding the screws, and a terminal plate (1) on the outer end of the screw extruder. One of the two screws (axis 10) extends through the terminal plate and this extension is surrounded by interconnected housing parts (11). Preferably several interconnected housing parts (11) are provided, and the extension of the screw also consists of individual extension pieces. The processed solid material is extruded axially from the screw extruder through an annular gap between a pressure plate (13) and the last housing part (11'''). The residual moisture content of the material to be processed can be further reduced, in particular to approximately 40 % by using this screw extruder.

Description

Schneckenpresse, insbesondere zum Zerkleinern von Materia¬ lien, wie organischen Abfällen od. dgl.Screw press, in particular for comminuting materials such as organic waste or the like.

Beschreibungdescription

Die Erfindung betrifft eine vorzugsweise zwei Schnek- ken aufweisende Schneckenpresse, insbesondere zum Zerklei¬ nern von Materialien gemäß Oberbegriff des Anspruches 1.The invention relates to a screw press which preferably has two screws, in particular for comminuting materials according to the preamble of claim 1.

Eine gattungsgemäße Schneckenpresse ist aus der O-A- 83/03.999 bekannt. Diese bekannte Schneckenpresse weist zwei Schnecken auf, die in einem Gehäuse drehbar gelagert sind und ineinander greifen. Sowohl das Gehäuse, als auch die Schnecken sind in Längsrichtung der Schneckenachsen gesehen mehrteilig ausgebildet, so daß die Länge der Schneckenpresse modulartig beliebig geändert werden kann und auch einzelne Gehäuse- und Schneckenelemente gegen an¬ dere ausgetauscht werden können. Die einzelnen Gehäuseele¬ mente sind dort in der durch die beiden Achsen der Schnek- ken gebildeten Ebene in zwei Hälften geteilt. Das ein- gangsseitige Gehäuseelement der bekannten Schneckenpresse weist in seiner oberen Mantelfläche eine Einfüllöffnung auf, während auf der Stirnseite des ausgangseitigen Gehäu¬ seelementes an einer Abschlußplatte eine Matritze angeord¬ net ist, durch die das aufbereitete Material in Form von Briketts, Chips od. dgl. abgeführt werden kann. Die ande¬ ren Gehäuseelemente weisen einen Mantel auf, der jeweils konzentrisch zu den beiden Schnecken ausgebildet ist und diese unmittelbar umgibt.A generic screw press is known from O-A-83 / 03.999. This known screw press has two screws, which are rotatably mounted in a housing and interlock. Both the housing and the screws are of multi-part design, as seen in the longitudinal direction of the screw axes, so that the length of the screw press can be changed as desired in a modular manner and individual housing and screw elements can also be exchanged for others. There, the individual housing elements are divided into two halves in the plane formed by the two axes of the screws. The input-side housing element of the known screw press has a filling opening in its upper lateral surface, while on the front side of the output-side housing element a die is arranged on an end plate, through which the processed material in the form of briquettes, chips or the like can be dissipated. The other housing elements have a casing, which is formed concentrically with the two screws and immediately surrounds them.

Bevorzugt laufen die beiden Schnecken gegenläufig, sodaß in die Schneckenpresse eingefülltes Material nicht nur axial bewegt, sondern zwischen den beiden Schnecken auch immer wieder zusammengepreßt wird.The two screws preferably run in opposite directions, so that material filled into the screw press is not only moved axially, but is also compressed again and again between the two screws.

Mit dieser Schneckenpresse werden riesel- und flie߬ fähige Materialien, insbesondere Gemische, aus organischen Stoffen, Abfällen, wie Klärschlamm, Mist, Stroh, Heu, Müll, Baumrinde, Gras, Papier od. dgl. aufbereitet. Dabei wird das Material zwischen den beiden Schnecken kompri- iert und je nach Ausgangsmaterial und gewünschten Endpro¬ dukt getrocknet, stabilisiert und homogenisiert.With this screw press, free-flowing and free-flowing materials, in particular mixtures, of organic substances, waste such as sewage sludge, manure, straw, hay, rubbish, tree bark, grass, paper or the like are processed. The material between the two snails is compressed ized and, depending on the starting material and the desired end product, dried, stabilized and homogenized.

Der Wirkungsgrad dieser Schneckenpresse wurde zwi¬ schenzeitlich durch verschiedene Maßnahmen, die in DE-A- 3.714.508, DE-A-3.714.509 und DE-A-3.71 .518 , beschrieben sind, verbessert.The efficiency of this screw press has meanwhile been improved by various measures which are described in DE-A-3.714.508, DE-A-3.714.509 and DE-A-3.71 .518.

Mit dieser bekannten Schneckenpresse und den weiter¬ hin vorgeschlagenen Verbesserungen läßt sich der Trock¬ nungsgrad aber nicht weiter erhöhen. Der Trocknungsgrad liegt in der Regel bei etwa 60 % Restfeuchte.With this known screw press and the further proposed improvements, however, the degree of drying cannot be increased further. The degree of drying is usually around 60% residual moisture.

Der Erfindung liegt deshalb die Aufgabe zugrunde, eine gattungsgemäße Schneckenpresse zu schaffen, bei der die Restfeuchte noch weiter verringert werden kann.The object of the invention is therefore to create a generic screw press in which the residual moisture can be reduced even further.

Diese Aufgabe wird durch den Gegenstand des Anspru¬ ches 1 gelöst.This object is achieved by the subject matter of claim 1.

Bei der erfindungsgemäßen Schneckenpresse, insbeson¬ dere zum Zerkleinern von Materialien, wie organischen Ab¬ fällen od. dgl., mit insbesondere zwei ineinandergreifen¬ den Schnecken, die in einem Gehäuse umlaufen, welches die Schnecken unmittelbar umhüllt, und mit einer Abschlußplat¬ te an dem ausgangsseitigen Ende der Schneckenpresse, ist nun eine der beiden Schnecken durch die Abschlußplatte hindurch verlängert und diese Verlängerung ist von minde¬ stens einem Gehäuseteil umgeben. Vor dem Austreten aus der Schneckenpresse wird das zu bearbeitende Material also nochmals mittels einer einzelnen Schnecke bearbeitet. Da¬ durch wird ein größerer Trocknungsgrad erreicht, als durch Verlängerung beider Schnecken der Schneckenpresse. Die Restfeuchte kann mit der erfindungsgemäßen Schneckenpresse bis auf 40 % heruntergebracht werden.In the screw press according to the invention, in particular for comminuting materials, such as organic waste or the like, with in particular two intermeshing screws which circulate in a housing which directly envelops the screws and with an end plate at the outlet end of the screw press, one of the two screws is now extended through the end plate and this extension is surrounded by at least one housing part. Before exiting the screw press, the material to be processed is processed again using a single screw. As a result, a greater degree of dryness is achieved than by lengthening both screws of the screw press. The residual moisture can be brought down to 40% with the screw press according to the invention.

Gemäß einer besonderen Ausführung sind mehrere mit¬ einander verbundene Gehäuseteile vorgesehen und auch die Verlängerung der Schnecke besteht aus einzelnen Verlänge¬ rungsstücken. Dadurch kann die Verlängerung je nach Be¬ dürfnissen und zu verarbeitendem Material angepaßt werden.According to a special embodiment, a plurality of housing parts which are connected to one another are provided, and the extension of the screw also consists of individual extension pieces. As a result, the extension can be adapted depending on the requirements and the material to be processed.

Das letzte Gehäuseteil steht vorzugsweise geringfügig über das Ende der verlängerten Schnecke hinaus, wodurch sich an diesem Ende der Schneckenpresse eine besondere Ab¬ schlußeinrichtung anbringen läßt, auf die noch eingegangen wird.The last housing part is preferably slightly beyond the end of the elongated screw, whereby a special closing device can be attached to this end of the screw press, which will be discussed in more detail below.

Gemäß einer bevorzugten Ausbildung bestehen' die Ge¬ häuseteile im wesentlichen aus einem zylinderförmigen, die Schnecke umgebenden Mantel und weisen vorzugsweise an ih¬ ren axialen Enden Bohrungen aufweisende Flansche auf. Die Gehäuseteile umschließen also die Schnecke unmittelbar. Mehrere Gehäuseteile können modulartig zu einem verlänger¬ ten Gehäuse zusammengesetzt werden.According to a preferred embodiment, the housing parts essentially consist of a cylindrical jacket surrounding the screw and preferably have flanges with bores at their axial ends. The housing parts therefore directly surround the screw. Several housing parts can be assembled in a modular manner to form an extended housing.

Auch diese Gehäuseteile weisen in ihrem Mantel Öff¬ nungen auf, durch die Flüssigkeit, Dämpfe od. dgl. austre- ten können. Vorzugsweise sind die Öffnungen der einzelnen Gehäuseteile auf das Ende der Schnecke zu von Gehäuseteil zu Gehäuseteil immer größer ausgebildet. ' **: These housing parts also have openings in their jacket through which liquid, vapors or the like can escape. The openings of the individual housing parts are preferably made ever larger towards the end of the screw from housing part to housing part. ' **:

Das erste Gehäuseteil ist an der Abschlußplatte fest¬ gelegt, insbesondere angeschraubt. Außerdem sind die ande¬ ren Gehäuseteile jeweils nur an ihrem bzw. ihren benach¬ barten Gehäuseteil festgelegt. Eine eigenen Lagerung der Verlängerung erübrigt sich somit. Auch ist der Raum um die Gehäuseteile herum, aus denen Flüssigkeiten austreten, frei von Bauteilen.The first housing part is fixed to the end plate, in particular screwed on. In addition, the other housing parts are each fixed only to their neighboring housing part. A separate storage of the extension is therefore unnecessary. The space around the housing parts from which liquids escape is also free of components.

An der Abschlußplatte sind nun mindestens zwei Stut¬ zen angeordnet, vorzugsweise angeschweißt, die an ihren freien Enden je einen Flansch aufweisen. An den Flanschen dieser Stutzen ist jeweils ein weiterer Stutzeri mittels eines Flansches lösbar angeordnet, vorzugsweise ange¬ schraubt. Dabei sind auf einer Achse jeweils mehrere Stut¬ zen angeordnet, wobei sich die Anzahl der Stutzen auf je¬ der Achse entspricht.At least two connecting pieces are now arranged, preferably welded, on the end plate, each of which has a flange at its free ends. On the flanges of these nozzles, another nozzle is detachably arranged, preferably screwed, by means of a flange. In this case, several nozzles are arranged on one axis, the number of nozzles on each axis corresponding.

Die beiden jeweils letzten Stutzen sind über einen Träger miteinander verbunden und die Achse dieses Trä_gers steht vorzugsweise auf der Achse der Schnecke senkrecht. An diesem Träger ist mittels eines Druckbolzens eine kon¬ vex auf die Abschlußplatte zu gewölbte Druckplatte festge¬ legt, wobei der Druckbolzen und die Achse des Drucktellers in der Achse des Schnecke angeordnet sind. ϊ; Der axiale Austritt des bearbeiteten Feststoffes aus der Schneckenpresse erfolgt nun in dem Ringspalt zwischen der Druckplatte und dem letzten Gehäuseteil. Die Druck¬ platte ist mittels des Druckbolzens auf das letzte Gehäu¬ seteil zu bzw. von diesem weg bewegbar einstellbar und diese Einstellung ist mittels einer Mutter od. dgl. si¬ cherbar. Die Größe dieser axialen Austrittsδffnung der Schneckenpresse kann dadurch - auch während des Betriebes - variiert werden.The two last connecting pieces are connected to each other via a support and the axis of this support is preferably perpendicular to the axis of the screw. On this support, a pressure plate which is convex toward the end plate is fixed by means of a pressure pin, the pressure pin and the axis of the pressure plate being arranged in the axis of the screw. ϊ; The machined solids then exit axially from the screw press in the annular gap between the pressure plate and the last housing part. The pressure plate can be adjusted by means of the pressure bolt so that it can be moved towards or away from the last housing part and this setting can be secured by means of a nut or the like. The size of this axial outlet opening of the screw press can thus be varied - even during operation.

Die axialen Längen eines Schnecken-Verlängerungs¬ stückes, eines Gehäuseteiles und eines Stutzens sind gleich groß, so daß durch Hinzufügen oder Entfernen eines Schnecken-Verlängerungsstückes, eines Gehäuseteils und ei¬ nes Stutzen-Paares die Länge der Schneckenpresse geändert werden kann.The axial lengths of a screw extension piece, a housing part and a socket are the same size, so that the length of the screw press can be changed by adding or removing a screw extension piece, a housing part and a socket pair.

Dabei ist zu berücksichtigen, daß die Anzahl der Ge¬ häuseteile und der Schnecken-Verlängerungsstücke um eins kleiner ist, als die Anzahl der auf einer Achse angeordne¬ ten Stutzen.It should be taken into account here that the number of housing parts and the screw extension pieces is one less than the number of nozzles arranged on an axis.

Weitere Einzelheiten und Vorteile der Erfindung er¬ geben sich aus einem im Folgenden anhand der Zeichnung be¬ schriebenen Ausführungsbeispiel.Further details and advantages of the invention result from an exemplary embodiment described below with reference to the drawing.

Es zeigt: Figur 1 eine Aufsicht auf eine Abschlußplatte einerIt shows: Figure 1 is a plan view of an end plate

Schneckenpresse, die auf den Ausgang derselben montiert wird; und Figur 2 eine schematische Darstellung von an dieser Ab¬ schlußplatte anzubringenden Elementen.Screw press which is mounted on the outlet thereof; and FIG. 2 shows a schematic illustration of elements to be attached to this end plate.

Eine insgesamt nicht dargestellte Schneckenpresse mit zwei Schnecken, wie sie z.B. in der WO-A-83/03.999 und oben beschrieben ist, weist an ihrem ausgangsseitigen Ende eine Abschlußplatte 1 auf.A screw press, not shown in total, with two screws, such as e.g. in WO-A-83 / 03.999 and described above, has an end plate 1 at its output end.

Die Figuren 1 und 2 zeigen nur dieses ausgangsseitige Ende einer solchen Schneckenpresse mit der Abschlußplatte 1, die z.B. lösbar mittels Schrauben an Endflanschen des letzten Gehäuseelementes der Schneckenpresse montiert sein kann. Diese Abschlußplatte 1 liegt somit in einer zυ den Achsen der Schnecken senkrechten Ebene. Die Achsen der Schnecken stehen in der Figur 1 senkrecht zur Zeichenebe¬ ne, in Figur 2 liegen sie parallel zur Zeichenebene.Figures 1 and 2 show only this output end of such a screw press with the end plate 1, which can for example be detachably mounted by means of screws on end flanges of the last housing element of the screw press. This end plate 1 is thus in a plane perpendicular to the axes of the screws. The axes of the screws in FIG. 1 are perpendicular to the plane of the drawing, in FIG. 2 they are parallel to the plane of the drawing.

Die beiden Schnecken einer solchen Schneckenpresse greifen ineinander ein, sodaß sich ihre Außenu fänge über¬ schneiden. Zwischen den beiden sich gegeneinander drehen¬ den Schnecken besteht vor dem dazwischen liegenden Spalt ein Eintrittskeil, in dem das Material zwischen die beiden Schnecken eingeführt und dabei besonders stark zusammenge¬ preßt wird. In diesem Bereich sind die Drücke auf das Ma¬ terial, die zwischen 20 und 50 bar betragen können, am größten. Der allergrößte Druck herrscht dabei unmittelbar in der durch die Schneckenachsen gebildeten Ebene, während davon beabstandet der Druck kleiner ist.The two screws of such a screw press intermesh, so that their outer circumferences overlap. Between the two screws rotating against each other, there is an entry wedge in front of the gap between them, in which the material is inserted between the two screws and pressed particularly strongly in the process. The pressures on the material, which can be between 20 and 50 bar, are greatest in this range. The greatest possible pressure prevails directly in the plane formed by the screw axes, while the pressure is smaller therefrom.

Die hier benutzte Abschlußplatte hat in der Horizon¬ talen eine Breite, die etwa vier Drittel ihrer (vertika¬ len) Höhe entspricht und ist im wesentlichen rechteckför- mig, wobei die Ecken abgeschnitten sind. Diese Form ent¬ spricht dabei den Endflanschen der Gehäuseelemente der Schneckenpresse, an der die Abschlußplatte anmontiert wird. Die Umrisse der Abschlußplatte 1 hängen somit we¬ sentlich von der Ausbildung des Gehäuses der Schnecken¬ presse ab. Um die Abschlußplatte an dem Gehäuse der Schneckenpresse festlegen zu können, sind in der Abschlu߬ platte Bohrungen 2 an deren Umfang vorgesehen, durch die hindurch Schrauben führbar sind, die auch entsprechende Bohrungen im Pressengehäuse durchdringen.The end plate used here has a horizontal width which corresponds to approximately four thirds of its (vertical) height and is essentially rectangular, the corners being cut off. This shape corresponds to the end flanges of the housing elements of the screw press on which the end plate is mounted. The outlines of the end plate 1 thus depend essentially on the design of the housing of the screw press. In order to be able to fix the end plate to the housing of the screw press, bores 2 are provided in the end plate on its periphery, through which screws can be passed, which also penetrate corresponding bores in the press housing.

Die Abschlußplatte 1 hat nun in Verlängerung einer Schnecke gesehen eine kreisrunde Öffnung 3, deren Durch¬ messer etwa dem Außendurchmesser dieser Schnecke ent¬ spricht. Dieser Durchmesser hat hier eine Größe, die etwa der Hälfte der Höhe der Abschlußplatte entspricht, d.h., die Höhe der Abschlußplatte ist etwa doppelt so groß, wie der Durchmesser einer Schnecke.The end plate 1 has now seen in the extension of a screw a circular opening 3, the diameter of which corresponds approximately to the outside diameter of this screw. This diameter here has a size which corresponds to approximately half the height of the end plate, i.e. the height of the end plate is approximately twice as large as the diameter of a screw.

Abhängig vom Eingriff der beiden Schnecken ist die Achse dieser Öffnung von der Mittelachse der Abschlußplat- te entfernt. Dabei ist zu berücksichtigen, daß die beiden Schnecken der Schneckenpresse ineinandergreifen, und die die beiden Schneckenachsen von der Mittelachse der Schnek- kenpresse gleich weit entfernt sind.Depending on the engagement of the two screws, the axis of this opening is from the central axis of the end plate. removed. It has to be taken into account that the two screws of the screw press intermesh and that the two screw axes are equidistant from the central axis of the screw press.

Um diese Öffnung 3 herum sind hier acht Bohrungen 4 angebracht, auf die später noch eingegangen wird.Around this opening 3 around eight holes 4 are made, which will be discussed later.

In der horizontalen Mittelebene der Abschlußplatte 1 sind an ihren Rändern noch Stutzen 5 angeschraubt, die an ihrem freien Ende jeweils eine Flansch 6 tragen.In the horizontal central plane of the end plate 1, sockets 5 are screwed to their edges, each of which carries a flange 6 at its free end.

Wie nun aus Figur 2 ersichtlich, sind an diesen Flan¬ schen 6 hier sechs weitere Stutzen 7 bzw. 8 angeflanscht. An den beiden jeweils letzten Stutzen 8 ist ein Träger 9 festgelegt, insbesondere angeschweißt, der diese beiden letzten Stutzen 8 miteinander verbindet. Dieser Träger 9 liegt somit in der von den Achsen der Schnecken aufge¬ spannten Ebene.As can now be seen from FIG. 2, six further connecting pieces 7 and 8 are flanged onto these flanges 6. A carrier 9 is fixed, in particular welded, to the two last connecting pieces 8, which connects these two last connecting pieces 8 to one another. This carrier 9 thus lies in the plane spanned by the axes of the screws.

Die eine nur durch ihre strichpunktiert wiedergegebe¬ ne Achse 10 gekennzeichnete Schnecke der Schneckenpresse ist nun durch die Abschlußplatte 1 hindurch verlängert.The screw of the screw press, which is indicated only by its dot-dash line 10, is now extended through the end plate 1.

Als "Gehäuse" für die Schneckenverlängerung sind nun einzelne zylinderförmige Gehäuseteile 11 vorgesehen, die an ihren axialen Enden jeweils Flansche 12 aufweisen, die insbesondere angeschweißt sind. Mehrerer solcher Gehäuse¬ teile 11 lassen sich somit Flansch 12 auf Flansch 12 zu einer Gehäuseverlängerung zusammensetzen. Hier sind ledig¬ lich drei Gehäuseteile 11 gezeichnet. Zwischen diesen und dem der Abschlußplatte 1 zugeordneten Gehäuseteil 11 und der Abschlußplatte 1 sind weitere nicht gezeichnete Gehäu¬ seteile 11 vorgesehen, die miteinander bzw. mit der Ab¬ schlußplatte 1 verschraubt sind. Allgemein kann gesagt werden, daß entsprechend der Gesamt-Anzahl der Stutzen 5 die Gesamt-Anzahl der Gehäuseteile 11 festliegt und zwar ist letztere immer um eines kleiner, als die Gesamt-Anzahl der Stutzen 5.As a "housing" for the screw extension, individual cylindrical housing parts 11 are now provided, each having flanges 12 at their axial ends, which are in particular welded on. Several such housing parts 11 can thus be assembled from flange 12 to flange 12 to form a housing extension. Only three housing parts 11 are drawn here. Between these and the housing part 11 assigned to the end plate 1 and the end plate 1, further housing parts 11, not shown, are provided, which are screwed to one another or to the end plate 1. In general, it can be said that the total number of housing parts 11 is fixed in accordance with the total number of nozzles 5, and the latter is always one less than the total number of nozzles 5.

Die Gesamtheit der Gehäuseteile 11 ist lediglich an der Abschlußplatte 1 festgelegt; das letzte, dem Träger 7 zugewandten Gehäuseteil 11 ist nur an seinem benachbarten Gehäuseteil festgelegt.The entirety of the housing parts 11 is only fixed on the end plate 1; the last, the carrier 7 facing housing part 11 is fixed only on its adjacent housing part.

An dem Träger 7 ist nun eine konvex auf die Abschlu߬ platte 1 der Schneckenpresse zu gewölbte, teller örmige Druckplatte 13 festgelegt, deren Achse in der Achse der Schnecke und damit in der Achse der Gehäuseteile 11 liegt. Diese Druckplatte 13 weist in ihrer Achse einen Druckbol¬ zen 14 auf, der den Träger 9 durchdringend an diesem der¬ art festgelegt ist, daß der Abstand der Druckplatte 13 von dem Träger 9 und damit auch von dem letzten Gehäaseteil 11'" einstellbar ist. Dieser Druckbolzen 13 kann z.B. ein Außengewinde aufweisen, welches mit einem Innengewinde in dem Träger 9 kämmt. Eine Mutter 15 sichert den Druckbolzen 14 beim Betrieb der Schneckenpresse gegen Verdrehen.A plate-shaped pressure plate 13, which is curved convexly towards the end plate 1 of the screw press and whose axis lies in the axis of the screw and thus in the axis of the housing parts 11, is now fixed on the carrier 7. This pressure plate 13 has in its axis a pressure bolt 14 which is fixed to the support 9 penetratingly in such a way that the distance of the pressure plate 13 from the support 9 and thus also from the last housing part 11 ″ is adjustable. This pressure bolt 13 can have, for example, an external thread which meshes with an internal thread in the carrier 9. A nut 15 secures the pressure bolt 14 against rotation during operation of the screw press.

Der Durchmesser der Druckplatte 13 entspricht etwa dem mittleren Durchmesser der Flansche 12 der Gehäuseteile 11, d.h., er ist größer, als der Innen-Durchmesser der Ge¬ häuseteile 11. Wird die Druckplatte 13 bis unmittelbar an das letzte Gehäuseteile 11'" bzw. deren letzten Flansch 12 bewegt, so ist das durch die Gehäuseteile 11 gebildete Ge¬ häuse an diesem Ende geschlossen.The diameter of the pressure plate 13 corresponds approximately to the average diameter of the flanges 12 of the housing parts 11, ie it is larger than the inner diameter of the housing parts 11. If the pressure plate 13 is directly up to the last housing parts 11 '' or their last flange 12 moves, the housing formed by the housing parts 11 is closed at this end.

Die eine die Abschlußplatte 1 durchdringendte Schnecke ist nun bis kurz vor die Druckplatte 13 verlängert, d.h., sie reicht fast bis an die Druckplatte 13 heran.The one screw penetrating the end plate 1 is now extended to just before the pressure plate 13, i.e. it extends almost up to the pressure plate 13.

Die Schnecke kann durch einzelne Schnecken-Teilstücke verlängert werden, die z.B. durch formschlüssige Verbin¬ dungen miteinander verbunden sind, die in der DE-A- 3.714.506 gezeigt und beschrieben sind. Eine solche Ver¬ bindung kann aber auch durch andere bekannte Wellenverbin¬ dungen erhalten werden.The screw can be extended by individual screw sections, e.g. are connected to one another by positive connections which are shown and described in DE-A-3.714.506. However, such a connection can also be obtained by other known shaft connections.

Die einzelnen Schnecken-Teilstücke, die Gehäuseteile 11 und die den Träger 9 haltenden Stutzen 5, 7 und 8 haben nun alle die gleiche axiale Länge, so daß durch An- oder Abbau einer sich jeweils entsprechenden Zahl von Bauteilen die Schneckenpresse im Bereich einer einzelnen^Schnecke entsprechend den speziellen Bedürfnissen modulartig ver¬ längert oder verkürzt werden kann. Dies hängt insbesondere von dem in der Schneckenpres¬ se zu verarbeitenden Material und dem gewünschten Produkt¬ eigenschaften ab.The individual screw sections, the housing parts 11 and the support 9 holding sockets 5, 7 and 8 now all have the same axial length, so that the screw press in the area of a single ^ by adding or removing a corresponding number of components The screw can be lengthened or shortened in a modular manner according to the special needs. This depends in particular on the material to be processed in the screw press and the desired product properties.

Aus Figur 2 ist nun weiterhin ersichtlich, daß die Gehäuseteile 11 an ihrem Umfang Öffnungen 16 bzw. 17 auf¬ weisen, die verschieden ausgebildet sein können.From FIG. 2 it can also be seen that the housing parts 11 have openings 16 and 17 on their circumference, which can be of different designs.

So weist das der Abschlußplatte 1 benachbarte Gehäu¬ seteil 11' schlitzförmige Öffnungen 16' auf, wobei die Schlitze parallel zur Achse dieses Gehäuseteils 11'" und damit parallel zur Achse der Schnecke angeordnet sind.Thus, the housing part 11 'adjacent to the end plate 1' has slot-shaped openings 16 ', the slots being arranged parallel to the axis of this housing part 11' 'and thus parallel to the axis of the screw.

Das mittlere Gehäuseteil 11" weist schlitzförmige Öffnungen 16" auf, wobei die Schlitze in Umfangsrichtung des Gehäuseteils 11 und damit in Drehrichtung der Schnecke angeordnet sind.The middle housing part 11 ″ has slot-shaped openings 16 ″, the slots being arranged in the circumferential direction of the housing part 11 and thus in the direction of rotation of the screw.

Das dem Träger 9 benachbarte Gehäuseteil 11"' weist Bohrungen 17 auf, die auf die Achse dieses Gehäuseteils 11 ' " zu ausgerichtet und damit senkrecht zur Achse der Schnecke angeordnet sind.The housing part 11 "'adjacent to the carrier 9 has bores 17 which are aligned with the axis of this housing part 11'" and are thus arranged perpendicular to the axis of the screw.

Allgemein kann gesagt werden, daß die Öffnungen 16 bzw. 17 auf die Druckplatte 13 zu größer werden.In general, it can be said that the openings 16 and 17 on the pressure plate 13 become larger.

Soweit die einzelnen Teile nicht gegeneinander beweg¬ lich oder voneinander lösbar sein müssen, sind diese mit¬ einander verschweißt. If the individual parts do not have to be movable relative to one another or detachable from one another, they are welded to one another.

Bezugszeichenliste• Reference symbol list •

1 Abschlußplatte1 end plate

2 Bohrungen2 holes

3 Öffnung3 opening

4 Bohrungen4 holes

5 Stutzen5 sockets

6 Flansch des Stutzens6 flange of the socket

7 Stutzen7 sockets

8 Stutzen8 sockets

9 Träger9 carriers

10 Achse der Schnecke10 axis of the snail

11 Gehäuseteil11 housing part

12 Flansch des Gehauseteils12 flange of the housing part

13 tellerförmige Druckplatte13 plate-shaped pressure plate

14 Druckbolzen14 thrust bolts

15 Mutter15 mother

16 Schlitz16 slot

17 Bohrung 17 hole

Claims

Patentansprüche Claims 1. Schneckenpresse, insbesondere zum Zerkleinern von Ma¬ terialien, wie organischen Abfällen od. dgl., mit insbe¬ sondere zwei ineinandergreifenden Schnecken, die in einem Gehäuse umlaufen, welches die Schnecken unmittelbar um¬ hüllt, und mit einer Abschlußplatte (1) an dem ausgangs¬ seitigen Ende der Schneckenpresse, dadurch gekennzeichnet, daß eine der beiden Schnecken (Achse 10) durch die Ab¬ schlußplatte (1) hindurch verlängert und diese Verlänge¬ rung von einzelnen miteinander verbundenen Gehäuseteilen (11) umgeben ist.1. Screw press, in particular for comminuting materials, such as organic waste or the like, with in particular two intermeshing screws which rotate in a housing which envelops the screws directly and with an end plate (1) the output end of the screw press, characterized in that one of the two screws (axis 10) extends through the end plate (1) and this extension is surrounded by individual interconnected housing parts (11). 2. Schneckenpresse nach Anspruch 1, dadurch gekennzeich¬ net, daß mehrere miteinander verbundene Gehäuseteile (11) vorgesehen sind und auch die Verlängerung der Schnecke aus einzelnen Verlängerungsstücken besteht.2. Screw press according to claim 1, characterized gekennzeich¬ net that several interconnected housing parts (11) are provided and the extension of the screw consists of individual extension pieces. 3. Schneckenpresse nach einem der beiden vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das letzte Gehäuse¬ teil (11'") geringfügig über das Ende der verlängerten Schnecke hinaussteht.3. Screw press according to one of the two preceding claims, characterized in that the last housing part (11 '") protrudes slightly beyond the end of the elongated screw. 4. Schneckenpresse nach einem der vorhergehenden Ansprü¬ che, dadurch gekennzeichnet, daß die Gehäuseteile (11) im wesentlichen aus einem zylinderför igen, die Schnecke um¬ gebenden Mantel bestehen und vorzugsweise an ihren axialen Enden Bohrungen aufweisende Flansche (12) aufweisen.4. Screw press according to one of the preceding claims, characterized in that the housing parts (11) essentially consist of a cylinder-shaped jacket surrounding the screw and preferably have bores (12) with bores at their axial ends. 5. Schneckenpresse nach einem der vorhergehenden Ansprü¬ che, dadurch gekennzeichnet, daß die Gehäuseteile (11) in ihrem Mantel Öffnungen (16, 17) aufweisen.5. Screw press according to one of the preceding Ansprü¬ che, characterized in that the housing parts (11) have openings (16, 17) in their jacket. 6. Schneckenpresse nach einem der vorhergehenden Ansprü¬ che, dadurch gekennzeichnet, daß die Öffnungen (16, 17) der einzelnen Gehäuseteile (11) auf das Ende der Schnecke zu von Gehäuseteil zu Gehäuseteil (11) größer ausgebildet sind.6. Screw press according to one of the preceding Ansprü¬ che, characterized in that the openings (16, 17) of the individual housing parts (11) on the end of the screw from the housing part to the housing part (11) are larger. 7. Schneckenpresse nach einem der vorhergehenden Ansprü¬ che, dadurch gekennzeichnet, daß das erste Gehäuseteil (11') an der Abschlußplatte (1) festgelegt, insbesondere angeschraubt ist. 7. Screw press according to one of the preceding Ansprü¬ che, characterized in that the first housing part (11 ') on the end plate (1) is fixed, in particular screwed. 8. Schneckenpresse nach einem der vorhergehenden Ansprü¬ che, dadurch gekennzeichnet, daß die anderen Gehäuseteile (11) jeweils nur an ihrem bzw. ihren benachbarten Gehäuse- teil(en) (11) festgelegt sind.8. Screw press according to one of the preceding Ansprü¬ che, characterized in that the other housing parts (11) are only fixed to their or their adjacent housing part (s) (11). 9. Schneckenpresse nach einem der vorhergehenden Ansprü¬ che, dadurch gekennzeichnet, daß an der Abschlußplatte (1) mindestens zwei Stutzen (5) angeordnet, vorzugsweise ange¬ schweißt, sind, die an ihren freien Enden je einen Flansch (6) aufweisen.9. Screw press according to one of the preceding claims, characterized in that at least two connecting pieces (5) are arranged, preferably welded, on the end plate (1), each having a flange (6) at their free ends. 10. Schneckenpresse nach einem der vorhergehenden Ansprü¬ che, dadurch gekennzeichnet, daß an den Flanschen (6) die¬ ser Stutzen (5) jeweils ein weiterer Stutzen (7 bzw. 8) mittels eines Flansches (6) lösbar angeordnet, vorzugswei¬ se angeschraubt, ist.10. Screw press according to one of the preceding claims, characterized in that on the flanges (6) this nozzle (5) each have another nozzle (7 or 8) detachably arranged by means of a flange (6), preferably screwed on. 11. Schneckenpresse nach einem der vorhergehenden Ansprü¬ che, dadurch gekennzeichnet, daß auf einer Achse jeweils mehrere Stutzen (5, 7, 8) angeordnet sind und sich die An¬ zahl der Stutzen (5, 7, 8) auf jeder Achse entspricht.11. Screw press according to one of the preceding Ansprü¬ che, characterized in that in each case a plurality of sockets (5, 7, 8) are arranged and the number of sockets (5, 7, 8) corresponds to each axis. 12. Schneckenpresse nach einem der vorhergehenden Ansprü¬ che, dadurch gekennzeichnet, daß die beiden jeweils letz¬ ten Stutzen (8) über einen Träger (9) miteinander verbun¬ den sind und vorzugsweise die Achse dieses Trägers (9) auf der Achse der Schnecke senkrecht steht.12. Screw press according to one of the preceding claims, characterized in that the two last connecting pieces (8) are connected to one another via a support (9) and preferably the axis of this support (9) on the axis of the screw is vertical. 13. Schneckenpresse nach einem der vorhergehenden Ansprü¬ che, dadurch gekennzeichnet, daß an dem Träger (9) mittels eines Druckbolzens (14) eine konvex auf die Abschlußplatte (1) zu gewölbte Druckplatte (13) festgelegt i≤t., wobei der Druckbolzen (14) und die Achse des Drucktellers (13) in der Achse (10) des Schnecke angeordnet sind.13. Screw press according to one of the preceding Ansprü¬ che, characterized in that on the carrier (9) by means of a pressure bolt (14) a convex on the end plate (1) to arched pressure plate (13) i≤t., Wherein the pressure bolt (14) and the axis of the pressure plate (13) are arranged in the axis (10) of the screw. 14. Schneckenpresse nach einem der vorhergehenden Ansprü¬ che, dadurch gekennzeichnet, daß die Druckplatte (13) mit¬ tels des Druckbolzens (14) auf das letzte Gehäuseteil (11'") zu bzw. von diesem weg bewegbar einstellbar und die Einstellung mittels einer Mutter (15) od. dgl. sicherbar ist.14. Screw press according to one of the preceding Ansprü¬ che, characterized in that the pressure plate (13) by means of the pressure bolt (14) on the last housing part (11 '") to or from this movable and adjustable by means of a Mother (15) or the like. Can be secured. 15. Schneckenpresse nach einem der vorhergehenden Ansprü¬ che, dadurch gekennzeichnet, daß die axialen Längen eines Schnecken-Verlängerungsstückes, eines Gehäuseteiles (11) und eines Stutzens (5, 7, 8) gleich groß sind. 15. Screw press according to one of the preceding Ansprü¬ che, characterized in that the axial lengths of one Screw extension piece, a housing part (11) and a socket (5, 7, 8) are the same size. 16. Schneckenpresse nach einem der vorhergehenden Ansprü¬ che, dadurch gekennzeichnet, daß die Anzahl der Gehäuse¬ teile (11) und der Schnecken-Verlängerungsstücke um eins kleiner ist, als die Anzahl der auf einer Achse angeordne¬ ten Stutzen (5, 7, 8) . 16. Screw press according to one of the preceding claims, characterized in that the number of housing parts (11) and the screw extension pieces is one less than the number of nozzles arranged on an axis (5, 7, 8th) .
PCT/EP1990/000222 1989-02-13 1990-02-12 Screw extruder, in particular for crushing materials such as organic refuse or the like Ceased WO1990009275A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP3904238.3 1989-02-13
DE19893904238 DE3904238A1 (en) 1989-02-13 1989-02-13 SCREW PRESS, ESPECIALLY FOR THE CRUSHING OF MATERIALS, LIKE ORGANIC WASTE OD. DGL.

Publications (1)

Publication Number Publication Date
WO1990009275A1 true WO1990009275A1 (en) 1990-08-23

Family

ID=6373959

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1990/000222 Ceased WO1990009275A1 (en) 1989-02-13 1990-02-12 Screw extruder, in particular for crushing materials such as organic refuse or the like

Country Status (6)

Country Link
EP (1) EP0383226A1 (en)
AU (1) AU5028890A (en)
DD (1) DD297790A5 (en)
DE (1) DE3904238A1 (en)
PT (1) PT93124A (en)
WO (1) WO1990009275A1 (en)

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EP0685325B1 (en) * 1994-05-04 1999-09-01 SCHLEGEL, Dietrich, Dr. Ing. Device for separating the liquid portion from the solid portion in two-phase systems
DE19653105C1 (en) * 1996-12-19 1998-04-23 Siemens Ag High-temperature resistant relay
DE102004046242A1 (en) * 2004-09-22 2006-03-23 Weda-Dammann & Westerkamp Gmbh Solid particles separation device for pig liquid manure, has housing with wall, where one section of wall with smaller filter openings attaches with another section of wall with larger filter openings, in flow direction of liquid manure
BE1016824A3 (en) * 2005-10-27 2007-07-03 Katholieke Hogeschool Sint Lieven Device for the production of oil suitable for biofuel by cold vegetable oil seeds and kernels.

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US1851191A (en) * 1927-02-11 1932-03-29 American Voith Contact Co Pulp screw press
US2709956A (en) * 1949-10-18 1955-06-07 Maurice A Napier Screw conveyor press
GB792870A (en) * 1955-04-23 1958-04-02 Rose Downs & Thompson Ltd Improvements in or relating to screw presses for expressing liquids from liquid-bearing materials
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JPS59166396A (en) * 1983-03-12 1984-09-19 Hisanaga Kiko:Kk Dehydrating and treating device for slurry material
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US2709956A (en) * 1949-10-18 1955-06-07 Maurice A Napier Screw conveyor press
GB792870A (en) * 1955-04-23 1958-04-02 Rose Downs & Thompson Ltd Improvements in or relating to screw presses for expressing liquids from liquid-bearing materials
FR1260202A (en) * 1960-03-25 1961-05-05 Olier Sa Ets A Continuous press perfected
DE2700542A1 (en) * 1976-01-09 1977-09-15 Somat Corp SUBDIVIDED IN MODULAR TYPE UNDER SIEBENTWATERER
JPS59166396A (en) * 1983-03-12 1984-09-19 Hisanaga Kiko:Kk Dehydrating and treating device for slurry material
JPH0668198A (en) * 1992-08-24 1994-03-11 Nec Commun Syst Ltd System for automatically generating hardware description

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DE4125053A1 (en) * 1991-07-29 1993-02-04 Foerderanlagen Und Maschinenba METHOD FOR HOME WASTE FINISHING, SORTING AND VOLUME DECIMATION

Also Published As

Publication number Publication date
DE3904238A1 (en) 1990-08-16
DD297790A5 (en) 1992-01-23
AU5028890A (en) 1990-09-05
EP0383226A1 (en) 1990-08-22
PT93124A (en) 1991-10-15

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