EP2766177B1 - Screw press - Google Patents

Screw press Download PDF

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Publication number
EP2766177B1
EP2766177B1 EP12768712.7A EP12768712A EP2766177B1 EP 2766177 B1 EP2766177 B1 EP 2766177B1 EP 12768712 A EP12768712 A EP 12768712A EP 2766177 B1 EP2766177 B1 EP 2766177B1
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EP
European Patent Office
Prior art keywords
screw press
pipe
flight
shaft
tube
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.)
Not-in-force
Application number
EP12768712.7A
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German (de)
French (fr)
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EP2766177A1 (en
Inventor
Roland Kanzler
Rudolf Stadlauer
Johannes KNAFL
Wolfgang Magor
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Andritz AG
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Andritz AG
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Publication of EP2766177A1 publication Critical patent/EP2766177A1/en
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Publication of EP2766177B1 publication Critical patent/EP2766177B1/en
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    • 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
    • B30B9/121—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
    • B30B9/122—Means preventing the material from turning with the screw or returning towards the feed hopper
    • 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
    • B30B9/166—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 the screws being coaxially disposed in the same chamber

Definitions

  • the invention relates to a screw press with a shaft and helical coil mounted thereon, according to claim 1.
  • dewatering screw presses are used to separate liquids and solids suspended therein. Many of these thickening and dewatering units are used particularly in the pulp and paper industry, since in this industrial sector water / pulp mixtures or in other words, suspensions are always used. Drainage screw presses have proved to be very efficient machines, especially in the thickening of suspensions of 3.5% to 4% solids content in the feed to 25 to 35% solids content in the outlet. Such a screw press is inter alia in the AT398 090 described.
  • the JP 63154297 A describes a (vertical) filter with compression screw, where in the compression area no more drainage takes place.
  • the DE 299 01 683 U1 describes a screw press with cones and an axially displaceable hollow shaft.
  • the aim of the invention is therefore to increase the screen area at a given length and diameter.
  • a favorable development of the invention is characterized in that the fixed tube is a screen tube, wherein the fixed tube may also have grooves or surfaces which counteract the co-rotation.
  • An advantageous embodiment of the invention is characterized in that the fixed tube has at least one filtrate channel, wherein the filtrate channel can be formed by a further tube between the fixed tube and the shaft journal.
  • An advantageous development of the invention is characterized in that the filtrate channel is divided by means of web plates into a plurality of separate filtrate channels.
  • a screw press 1 as in Fig. 1 consists of an inlet housing 2, an outlet housing 3, a worm shaft 4 with one or more helical worm gears 5 mounted on the worm shaft, which worm helixes 5 can be made both continuous and interrupted, and a housing shell 6 surrounding this worm shaft 4 arises between the housing shell 6, the worm shaft 4 and the spiral screw helix 5, a conveying gap 7 for the dewatered Suspension.
  • This conveying gap 7 can change its geometry along the axis of the worm shaft 4, but this need not necessarily.
  • the principle of the screw press 1 is as follows: The worm shaft 4, which is mounted within the housing shell 6 is set by a drive of any kind in a rotary motion.
  • a suspension is supplied.
  • the rotating shaft 4 moves this suspension through the spiral helix 5 within the Conveying gap 7 in the direction of connected to the housing shell 6 outlet housing 3.
  • the housing shell 6 a dewatering screw press 1 is usually designed as a sieve.
  • the conveying gap 7 formed by the shaft 4, the worm gear 5 and the housing jacket 6 changes its geometry along the shaft axis, in the direction of the outlet housing 3, in a manner which facilitates dewatering. In most cases, the available volume along the shaft axis is reduced so to force the drainage of the suspension. The liquid thus released is discharged through the housing jacket 6 designed as a sieve.
  • the screw helix 5 merges into a freely projecting spiral helix 8.
  • the coil 8 is not necessarily sauish matter (as shown) executed. To increase the strength of the helix, this could also be stiffened with a U-profile.
  • the freely projecting helix 8 passes with a sufficient gap over a fixed tube 9 in the inlet region of the screw press 1.
  • This tube 9 is firmly connected to the frame of the screw press 1 and performs no rotational movement.
  • the attached to the frame of the press 1 tube 9 is preferably designed as a sieve which in the inlet region of the press 1, the screen area is increased enormously.
  • the tube 9 need not be designed as a sieve tube, but may also have any grooves or a macroscopic or microscopic rough surface. Through this surface, as well as by grooves or a sieve of the co-rotation is counteracted. This causes in addition to better drainage that the solid suspension (pulp suspension) no longer adheres to the metallic surface and thereby an axial transport of solids is ensure
  • the shaft 10 of the conventional worm shaft 4 is performed by the attached to the frame of the press 1 tube 9 and stored conventionally after the housing feedthrough.
  • Fig. 2 shows the inlet part 2 according to the invention a screw press 1.
  • the suspension enters the inlet nozzle 11 a.
  • the entire inlet part is connected in the illustrated embodiment by means of flange 12 with the housing shell 6.
  • the inlet part can also be designed differently.
  • the inlet part 2 has a tube 9, which is firmly connected thereto, as shown here by way of example by means of screws.
  • a concentric tube 13 which has a larger diameter, than the shaft journal 10 (not shown), is provided.
  • Tube 9 and tube 13 thus form a filtrate channel 14.
  • This filtrate channel 14 can also be divided by web plates into a plurality of separate filtrate channels.
  • the filtrate collected in the tube 9 is then passed through the filtrate channel 14 in the Filtratsammelflansch 15 and in this embodiment, for example via a Filtratsammelpfanne 16 in the filtrate pan 17 (FIG. Fig. 1 ) of the screw press 1 passed.
  • Fig. 3 is now a section through a worm shaft 4 shown.
  • the present invention offers two advantages over conventional screw presses:
  • the sieve surface in the inlet region 2 of the screw press 1 is increased by a factor of 1.5 to 1.8. This significantly increases the drainage performance of the press 1.
  • the co-rotation of the pulp is reduced. Fibers show a tendency to adhere to the rotating shaft. If the fiber adheres to the worm shaft 4, the axial transport is reduced or even comes to a standstill.
  • the decisive factors for this co-rotation are the friction conditions inside the press. In conventional presses as well as in the conventional part of the screw extruder 1 4 1, the pulp is prevented by the designed as a sieve housing shell 6 of the press 1 to the co-rotation.
  • the worm shaft 4 itself tries to put the pulp in a rotary motion.
  • the pulp adheres to the surface of the worm shaft 4 and then co-rotates at the shaft speed without experiencing substantial axial feed.
  • the adhesion of the pulp to the rotating worm shaft 4 in the inlet region is prevented by the fact that only a stationary pipe 9 is installed in the inlet region 2.
  • the tube 9 is preferably designed as a sieve, but may also have any grooves or a macroscopically or microscopically rough surface. These grooves or macroscopically or microscopically rough surface can also be mounted on a tube 9 designed as a sieve.
  • the worm shaft 4 or actually the pin 10 rotates within this tube 9.
  • Both the sieve-like housing jacket 6 and the sieve tube 9 inserted in the inlet region 2 prevent the fibrous material from rotating.
  • the cantilevered Spiral 8 passes over the sieve tube 9 and transports the pulp purely axially forward. This leads to a considerable increase in the transport efficiency and thus to an increased material removal from the inlet region 2 of the press 1, whereby the inlet mass flow is increased.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filtration Of Liquid (AREA)
  • Treatment Of Sludge (AREA)
  • Paper (AREA)
  • Press Drives And Press Lines (AREA)

Description

Die Erfindung betrifft eine Schneckenpresse mit einer Welle und darauf angebrachter spiralförmigen Wendel, gemäß Anspruch 1.The invention relates to a screw press with a shaft and helical coil mounted thereon, according to claim 1.

Im Allgemeinen werden Entwässerungs-Schneckenpressen zum Separieren von Flüssigkeiten und darin suspendierten Feststoffen verwendet. Besonders in der Papier und Zellstoffindustrie werden viele dieser Eindick- und Entwässerungsaggregate verwendet, da in diesem Industriebereich immer mit Wasser- / Faserstoff- Gemischen oder in anderen Worten Suspensionen gearbeitet wird. Entwässerungs-Schneckenpressen haben sich besonders im Bereich der Eindickung von Suspensionen von 3,5 % bis 4 % Feststoffmassenanteil im Zulauf auf 25 bis 35 % Feststoffmassenanteil im Auslauf als sehr effiziente Maschinen erwiesen. Eine derartige Schneckenpresse ist u.a. in der AT398 090 beschrieben. Die JP 63154297 A beschreibt ein (vertikales) Filter mit Kompressionsschraube, wobei im Kompressionsbereich keine Entwässerung mehr stattfindet. Die DE 299 01 683 U1 beschreibt eine Schneckenpresse mit Staukegeln und einer axial verschiebbaren Hohlwelle. Weiters sind aus der US 5857405 A sowie der US 2004/0178053 A1 Entwässerungsaggregate bekannt, bei denen mittels einer freien Wendel Stoffe in ein Rohr gefördert und dort verdichtet werden. Weiters beschreibt die DE 198 05 451 eine Förderschnecke für einen Kehrrichtwäscher. Hier liegt eine offene Schnecke vor, die das Material ohne Pressung in einen Behälter zum Abtransport fördert. Auch die JP 2006075953 zeigt keine Schneckenpresse, sondern eine Förderschnecke für Hackschnitzel. Die FR 593 115 zeigt eine Schneckenpresse, wobei hier eine dünne Schnecke um eine feststehende Welle rotiert und dadurch das Material an einen äußeren Siebkorb presst. Problematisch erweist sich bei Entwässerungs-Schneckenpressen im Stand der Technik im besondern die zur Verfügung stehende Siebfläche. Sie stellt den limitierenden Faktor bei der Entwässerung dar. Je größer die Siebfläche ist desto größer ist die Entwässerungsleistung der Presse. Die Siebfläche wird derzeit praktisch ausschließlich durch Durchmesser und Länge bestimmt.Generally, dewatering screw presses are used to separate liquids and solids suspended therein. Many of these thickening and dewatering units are used particularly in the pulp and paper industry, since in this industrial sector water / pulp mixtures or in other words, suspensions are always used. Drainage screw presses have proved to be very efficient machines, especially in the thickening of suspensions of 3.5% to 4% solids content in the feed to 25 to 35% solids content in the outlet. Such a screw press is inter alia in the AT398 090 described. The JP 63154297 A describes a (vertical) filter with compression screw, where in the compression area no more drainage takes place. The DE 299 01 683 U1 describes a screw press with cones and an axially displaceable hollow shaft. Furthermore are from the US 5857405 A as well as the US 2004/0178053 A1 Dewatering units are known in which conveyed by means of a free filament substances in a tube and compacted there. Further describes the DE 198 05 451 a screw conveyor for a sweeping scrubber. Here is an open snail, which promotes the material without pressure in a container for removal. Also the JP 2006075953 does not show a screw press, but a screw conveyor for wood chips. The FR 593 115 shows a screw press, in which case a thin screw rotates about a fixed shaft and thereby presses the material to an outer screen basket. In the case of dewatering screw presses in the prior art, the available sieve surface proves to be particularly problematic. It represents the limiting factor in drainage. The larger the sieve area, the greater the dewatering performance of the press. The screen surface is currently determined almost exclusively by diameter and length.

Ziel der Erfindung ist es daher die Siebfläche bei gegebener Länge und Durchmesser zu erhöhen.The aim of the invention is therefore to increase the screen area at a given length and diameter.

Dies erfolgt erfindungsgemäß dadurch, dass ein Spalt zwischen Rohr und Wendel vorgesehen ist und wobei der Wellenzapfen (10) der Schneckenpresse (1) durch die frei auskragende Wendel (8) und der Wellenzapfen (10) durch das feststehende Rohr (9) geführt ist. Dadurch kann die zur Verfügung stehende Siebfläche im Einlaufbereich der Entwässerungs-Schneckenpresse um einen Faktor in der Größenordnung von 1,5 bis 1,8 vergrößert werden. Dabei wird sowohl die Entwässerungs- als auch die Durchsatzleistung der Schneckenpresse gesteigert. Eine vorteilhafte Weiterbildung der Erfindung ist dadurch gekennzeichnet, dass das Rohr feststehend ausgebildet und mit dem Rahmen der Schneckenpresse verbunden ist. Damit ist eine gute Ableitung der Flüssigkeit ohne Abdichtungsprobleme gegeben.This is done according to the invention in that a gap between the tube and coil is provided and wherein the shaft journal (10) of the screw press (1) through the freely projecting coil (8) and the shaft journal (10) through the fixed tube (9) is guided. As a result, the available screen area in the inlet area of the dewatering screw press can be increased by a factor of the order of 1.5 to 1.8. Both the drainage and the throughput of the screw press are increased. An advantageous development of the invention is characterized in that the tube is fixed and connected to the frame of the screw press. This gives a good discharge of the liquid without sealing problems.

Eine günstige Weiterbildung der Erfindung ist dadurch gekennzeichnet, dass das feststehende Rohr ein Siebrohr ist, wobei das feststehende Rohr auch Nuten oder Oberflächen aufweisen kann, die der Co-Rotation entgegen wirken.A favorable development of the invention is characterized in that the fixed tube is a screen tube, wherein the fixed tube may also have grooves or surfaces which counteract the co-rotation.

Eine vorteilhafte Ausgestaltung der Erfindung ist dadurch gekennzeichnet, dass das feststehende Rohr mindestens einen Filtratkanal aufweist, wobei der Filtratkanal durch ein weiteres Rohr zwischen feststehendem Rohr und Wellenzapfen gebildet werden kann.An advantageous embodiment of the invention is characterized in that the fixed tube has at least one filtrate channel, wherein the filtrate channel can be formed by a further tube between the fixed tube and the shaft journal.

Eine vorteilhafte Weiterbildung der Erfindung ist dadurch gekennzeichnet, dass der Filtratkanal mittels Stegblechen in mehrere voneinander getrennte Filtratkanäle unterteilt ist.An advantageous development of the invention is characterized in that the filtrate channel is divided by means of web plates into a plurality of separate filtrate channels.

Die Erfindung wird nun anhand der Zeichnungen beispielhaft beschrieben, wobei

  • Fig. 1 eine Darstellung der erfindungsgemäßen Schneckenpresse,
  • Fig. 2 den Einlaufteil der erfindungsgemäßen Schneckenpresse und
  • Fig. 3 eine Schneckenwelle gemäß der Erfindung darstellt.
The invention will now be described by way of example with reference to the drawings, in which:
  • Fig. 1 a representation of the screw press according to the invention,
  • Fig. 2 the inlet part of the screw press according to the invention and
  • Fig. 3 represents a worm shaft according to the invention.

Eine Schneckenpresse 1 wie in Fig. 1 besteht aus einem Einlaufgehäuse 2, einem Auslaufgehäuse 3, einer Schneckenwelle 4 mit einer oder mehreren spiralförmigen an der Schneckenwelle angebrachten Schneckenwendeln 5 , wobei diese Schneckenwendeln 5 sowohl durchgehend als auch unterbrochen ausgeführt sein können und einem diese Schneckenwelle 4 umgebenden Gehäusemantel 6. Dabei entsteht zwischen dem Gehäusemantel 6, der Schneckenwelle 4 und der spiralförmigen Schneckenwendel 5 ein Förderspalt 7 für die zu entwässernde Suspension. Dieser Förderspalt 7 kann seine Geometrie entlang der Achse der Schneckenwelle 4 ändern, muss dies jedoch nicht zwingend. Das Prinzip der Schneckenpresse 1 ist wie folgt: Die Schneckenwelle 4, die innerhalb des Gehäusemantels 6 gelagert ist wird durch einen Antrieb beliebiger Art in eine Drehbewegung versetzt. Über das mit dem Gehäusemantel 6 verbundene Einlaufgehäuse 2 wird eine Suspension zugeführt. Die rotierende Welle 4 bewegt diese Suspension durch die spiralförmige Schneckenwendel 5 innerhalb des Förderspaltes 7 in Richtung des mit dem Gehäusemantel 6 verbundenen Auslaufgehäuses 3. Der Gehäusemantel 6 einer Entwässerungs-Schneckenpresse 1 ist üblicherweise als Sieb ausgeführt. Der von der Welle 4, der Schneckenwendel 5 und dem Gehäusemantel 6 ausgebildete Förderspalt 7 ändert seine Geometrie entlang der Wellenachse, in Richtung des Auslaufgehäuses 3, in einer der Entwässerung dienlichen Art. Meist wird dabei das zur Verfügung stehende Volumen entlang der Wellenachse reduziert, um so die Entwässerung der Suspension zu erzwingen. Die dabei frei werdende Flüssigkeit wird durch den als Sieb ausgeführten Gehäusemantel 6 abgeleitet. Im Bereich des Einlaufgehäuses 2 geht die Schneckenwendel 5 in eine frei auskragende spiralförmige Wendel 8 über. Die Wendel 8 ist nicht zwingend zweigängig (wie dargestellt) ausgeführt. Zur Erhöhung der Festigkeit der Wendel könnte diese auch mit einem U-Profil versteift sein. Die frei auskragende Wendel 8 streicht mit einem ausreichenden Spalt über ein feststehendes Rohr 9 im Einlaufbereich der Schneckenpresse 1. Dieses Rohr 9 ist fest mit dem Rahmen der Schneckenpresse 1 verbunden und führt keine Drehbewegung aus. Das am Rahmen der Presse 1 befestigte Rohr 9 ist vorzugsweise als Sieb ausgeführt wodurch im Einlaufbereich der Presse 1 die Siebfläche enorm vergrößert wird. Das Rohr 9 muss nicht als Siebrohr ausgeführt sein, sondern kann auch beliebige Nuten oder eine makroskopisch bzw. mikroskopisch raue Oberfläche aufweisen. Durch diese Oberfläche, wie auch durch Nuten bzw. ein Sieb wird der Co-Rotation entgegen gewirkt. Dies bewirkt zusätzlich zur besseren Entwässerung, dass die Feststoffsuspension (Faserstoffsuspension) nicht mehr an der metallischen Oberfläche haftet und dadurch auch ein axialer Feststofftransport gewährleistet wird.A screw press 1 as in Fig. 1 consists of an inlet housing 2, an outlet housing 3, a worm shaft 4 with one or more helical worm gears 5 mounted on the worm shaft, which worm helixes 5 can be made both continuous and interrupted, and a housing shell 6 surrounding this worm shaft 4 arises between the housing shell 6, the worm shaft 4 and the spiral screw helix 5, a conveying gap 7 for the dewatered Suspension. This conveying gap 7 can change its geometry along the axis of the worm shaft 4, but this need not necessarily. The principle of the screw press 1 is as follows: The worm shaft 4, which is mounted within the housing shell 6 is set by a drive of any kind in a rotary motion. About the connected to the housing shell 6 inlet housing 2, a suspension is supplied. The rotating shaft 4 moves this suspension through the spiral helix 5 within the Conveying gap 7 in the direction of connected to the housing shell 6 outlet housing 3. The housing shell 6 a dewatering screw press 1 is usually designed as a sieve. The conveying gap 7 formed by the shaft 4, the worm gear 5 and the housing jacket 6 changes its geometry along the shaft axis, in the direction of the outlet housing 3, in a manner which facilitates dewatering. In most cases, the available volume along the shaft axis is reduced so to force the drainage of the suspension. The liquid thus released is discharged through the housing jacket 6 designed as a sieve. In the region of the inlet housing 2, the screw helix 5 merges into a freely projecting spiral helix 8. The coil 8 is not necessarily zweigängig (as shown) executed. To increase the strength of the helix, this could also be stiffened with a U-profile. The freely projecting helix 8 passes with a sufficient gap over a fixed tube 9 in the inlet region of the screw press 1. This tube 9 is firmly connected to the frame of the screw press 1 and performs no rotational movement. The attached to the frame of the press 1 tube 9 is preferably designed as a sieve which in the inlet region of the press 1, the screen area is increased enormously. The tube 9 need not be designed as a sieve tube, but may also have any grooves or a macroscopic or microscopic rough surface. Through this surface, as well as by grooves or a sieve of the co-rotation is counteracted. This causes in addition to better drainage that the solid suspension (pulp suspension) no longer adheres to the metallic surface and thereby an axial transport of solids is ensured.

Der Wellenzapfen 10 der konventionellen Schneckenwelle 4 wird durch das am Rahmen der Presse 1 befestigte Rohr 9 durchgeführt und nach der Gehäusedurchführung konventionell gelagert.The shaft 10 of the conventional worm shaft 4 is performed by the attached to the frame of the press 1 tube 9 and stored conventionally after the housing feedthrough.

Fig. 2 zeigt den erfindungsgemäßen Einlaufteil 2 einer Schneckenpresse 1. Die Suspension tritt in den Einlaufstutzen 11 ein. Der gesamte Einlaufteil ist bei der dargestellten Ausführung mittels Flansch 12 mit dem Gehäusemantel 6 verbunden. Der Einlaufteil kann natürlich auch anders ausgeführt sein. Der Einlaufteil 2 weist ein Rohr 9 auf, das damit fest verbunden ist, wie hier beispielhaft mittels Schrauben dargestellt. Hier ist ebenfalls gezeigt, dass ein konzentrisches Rohr 13, das einen größeren Durchmesser aufweist, als der (nicht dargestellte) Wellenzapfen 10, vorgesehen ist. Rohr 9 und Rohr 13 bilden somit einen Filtratkanal 14. Dieser Filtratkanal 14 kann auch durch Stegbleche in mehrere voneinander getrennte Filtratkanäle unterteilt werden. Das im Rohr 9 gesammelte Filtrat wird anschließend durch den Filtratkanal 14 in den Filtratsammelflansch 15 geführt und bei dieser Ausführung beispielsweise über eine Filtratsammelpfanne 16 in die Filtratwanne 17 (Fig. 1) der Schneckenpresse 1 geleitet. Fig. 2 shows the inlet part 2 according to the invention a screw press 1. The suspension enters the inlet nozzle 11 a. The entire inlet part is connected in the illustrated embodiment by means of flange 12 with the housing shell 6. Of course, the inlet part can also be designed differently. The inlet part 2 has a tube 9, which is firmly connected thereto, as shown here by way of example by means of screws. Here too it is shown that a concentric tube 13, which has a larger diameter, than the shaft journal 10 (not shown), is provided. Tube 9 and tube 13 thus form a filtrate channel 14. This filtrate channel 14 can also be divided by web plates into a plurality of separate filtrate channels. The filtrate collected in the tube 9 is then passed through the filtrate channel 14 in the Filtratsammelflansch 15 and in this embodiment, for example via a Filtratsammelpfanne 16 in the filtrate pan 17 (FIG. Fig. 1 ) of the screw press 1 passed.

In Fig. 3 ist nun ein Schnitt durch eine Schneckenwelle 4 dargestellt. Man erkennt hier die (konventionelle) Schneckenwendel 5 sowie die auskragende Wendel 8 und den Wellenstummel 10.In Fig. 3 is now a section through a worm shaft 4 shown. One recognizes here the (conventional) worm spiral 5 as well as the projecting helix 8 and the stub shaft 10.

Die vorliegende Erfindung bietet zwei Vorteile gegenüber konventionellen Schneckenpressen:
Die Siebfläche im Einlaufbereich 2 der Schneckenpresse 1 wird um den Faktor 1,5 bis 1,8 vergrößert. Dies steigert die Entwässerungsleistung der Presse 1 signifikant.The present invention offers two advantages over conventional screw presses:
The sieve surface in the inlet region 2 of the screw press 1 is increased by a factor of 1.5 to 1.8. This significantly increases the drainage performance of the press 1.

Weiters wird die Co-Rotation des Faserstoffes reduziert. Faserstoffe zeigen eine Neigung an der drehenden Welle anzuhaften. Haftet der Faserstoff an der Schneckenwelle 4 wird der axiale Transport vermindert oder kommt sogar zum Erliegen. Ausschlaggebend für diese Co-Rotation sind im großen Maße die Reibungsverhältnisse im Inneren der Presse. In konventionellen Pressen wie auch im konventionellen Teil 4,5 der Schneckenpresse 1 wird der Faserstoff vom als Sieb ausgeführten Gehäusemantel 6 der Presse 1 an der Co-Rotation gehindert. Die Schneckenwelle 4 selbst versucht den Faserstoff jedoch in eine Rotationsbewegung zu versetzen. Zusätzlich dazu haftet der Faserstoff an der Oberfläche der Schneckenwelle 4 an und co-rotiert dann mit der Wellendrehzahl ohne dabei noch einen wesentlichen axialen Vorschub zu erfahren. In der gegenwärtigen Erfindung wird das Anhaften des Faserstoffes an der rotierenden Schneckenwelle 4 im Einlaufbereich dadurch verhindert, dass im Einlaufbereich 2 nur ein stehendes Rohr 9 eingebaut ist. Das Rohr 9 ist vorzugsweise als Sieb ausgeführt, kann aber auch beliebige Nuten oder eine makroskopisch bzw. mikroskopisch raue Oberfläche aufweisen. Diese Nuten bzw. makroskopisch bzw. mikroskopisch raue Oberfläche kann auch auf einem als Sieb ausgeführten Rohr 9 angebracht sein. Die Schneckenwelle 4 oder eigentlich der Zapfen 10 dreht sich innerhalb dieses Rohres 9. Sowohl der siebartige Gehäusemantel 6, als auch das im Einlaufbereich 2 eingesetzte Siebrohr 9 hindern den Faserstoff an der Rotation. Die auskragende Wendel 8 überstreicht das Siebrohr 9 und transportiert den Faserstoff rein axial vorwärts. Dies führt zu einer erheblichen Steigerung der Transporteffizienz und somit zu einem erhöhten Materialabtransport aus dem Einlaufbereich 2 der Presse 1, wodurch der Einlaufmassenstrom erhöht wird.Furthermore, the co-rotation of the pulp is reduced. Fibers show a tendency to adhere to the rotating shaft. If the fiber adheres to the worm shaft 4, the axial transport is reduced or even comes to a standstill. The decisive factors for this co-rotation are the friction conditions inside the press. In conventional presses as well as in the conventional part of the screw extruder 1 4 1, the pulp is prevented by the designed as a sieve housing shell 6 of the press 1 to the co-rotation. However, the worm shaft 4 itself tries to put the pulp in a rotary motion. In addition, the pulp adheres to the surface of the worm shaft 4 and then co-rotates at the shaft speed without experiencing substantial axial feed. In the present invention, the adhesion of the pulp to the rotating worm shaft 4 in the inlet region is prevented by the fact that only a stationary pipe 9 is installed in the inlet region 2. The tube 9 is preferably designed as a sieve, but may also have any grooves or a macroscopically or microscopically rough surface. These grooves or macroscopically or microscopically rough surface can also be mounted on a tube 9 designed as a sieve. The worm shaft 4 or actually the pin 10 rotates within this tube 9. Both the sieve-like housing jacket 6 and the sieve tube 9 inserted in the inlet region 2 prevent the fibrous material from rotating. The cantilevered Spiral 8 passes over the sieve tube 9 and transports the pulp purely axially forward. This leads to a considerable increase in the transport efficiency and thus to an increased material removal from the inlet region 2 of the press 1, whereby the inlet mass flow is increased.

Claims (6)

  1. Screw press (1) with a shaft (4) and helical conveying flight (5) mounted on it, a shaft journal (10) and a housing shell (6) surrounding the flight (5), where the flight (5) becomes a freely projecting flight (8) in the inlet area (2) of the screw press (1), where a stationary pipe (9) is provided in the inlet area (2) of the screw press (1) over which the freely projecting flight (8) sweeps, characterized in that a gap is provided between pipe (9) and flight (8), where the stationary pipe (9) is a screen pipe and where the shaft journal (10) of the screw press (1) is guided through the freely projecting flight (8) and the shaft journal (10) through the stationary pipe (9).
  2. Screw press according to claim 1, characterized in that the pipe (9) is stationary and connected to the frame of the screw press (1).
  3. Screw press according to one of claims 1 to 2, characterized in that the stationary pipe (9) has grooves or surfaces that counteract co-rotation.
  4. Screw press according to one of Claims 1 to 3, characterized in that the stationary pipe (9) has at least one filtrate channel (14).
  5. Screw press according to claim 4, characterized in that the filtrate channel (14) is formed by another pipe (13) between the stationary pipe (9) and the shaft journal (10).
  6. Screw press according to claim 4 or 5, characterized in that the filtrate channel (14) is divided by means of web plates into several filtrate channels that are separate from one another
EP12768712.7A 2011-10-11 2012-09-10 Screw press Not-in-force EP2766177B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA1475/2011A AT511982B1 (en) 2011-10-11 2011-10-11 SCREW PRESS
PCT/EP2012/003785 WO2013053418A1 (en) 2011-10-11 2012-09-10 Screw press

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EP2766177A1 EP2766177A1 (en) 2014-08-20
EP2766177B1 true EP2766177B1 (en) 2018-12-26

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EP12768712.7A Not-in-force EP2766177B1 (en) 2011-10-11 2012-09-10 Screw press

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US (1) US10005252B2 (en)
EP (1) EP2766177B1 (en)
JP (1) JP6147260B2 (en)
CN (1) CN103946017B (en)
AT (1) AT511982B1 (en)
BR (1) BR112014008559A2 (en)
CA (1) CA2851289C (en)
CL (1) CL2014000907A1 (en)
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WO (1) WO2013053418A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10118358B2 (en) * 2014-12-22 2018-11-06 Us Farm Systems, Inc. Screw press for separation of liquid from bulk materials
CN108081430A (en) * 2017-12-14 2018-05-29 王伟 A kind of production equipment of plant fiber or high polymer material composite wood
CN107932961A (en) * 2017-12-21 2018-04-20 中科国兴（北京）科技有限公司 A kind of solid-liquid separating machine
DE102018113135A1 (en) 2018-06-01 2019-12-05 Bernhard Giersberg Device for sewage sludge dewatering
CN110345720A (en) * 2019-08-08 2019-10-18 沈阳远大科技实业有限公司 A kind of screw extrusion dewaterer
CN110526541A (en) * 2019-08-26 2019-12-03 南京爱斯利尔环保设备工程有限公司 A kind of pressafiner
CN113002046B (en) * 2021-03-03 2021-12-14 林美珊 Spiral extrusion type solid-liquid separator
CN113198240A (en) * 2021-05-07 2021-08-03 抚州市第一中医医院(江西中医药高等专科学校附属医院) Traditional chinese medical science cardiovascular medicine residue collection device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0671491A (en) * 1992-08-26 1994-03-15 Hitachi Zosen Corp Screw type dehydrating machine

Family Cites Families (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE332012A (en) * 1925-02-09
US3085623A (en) * 1960-09-15 1963-04-16 Bauer Bros Co Impregnator
SE403309B (en) * 1976-09-07 1979-01-29 Reinhall P G SCREW PRESS, AS A SCREW FEEDER FOR LIGNOCELLULOSE FIBER MATERIAL OR OTHER COMPRESSIVE MATERIAL IN PIECE SHAPE
DE2718673A1 (en) * 1977-04-27 1978-11-02 Krauss Maffei Ag METHOD AND APPARATUS FOR DEWATERING MUD
DE3043194A1 (en) * 1980-11-15 1982-07-01 Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover DEVICE FOR MECHANICALLY SEPARATING LIQUIDS FROM LIQUIDS-SOLIDS MIXTURES IN A SCREW PRESS
JPH0683915B2 (en) * 1986-12-17 1994-10-26 九里化学装置株式会社 Continuous filter with squeeze screw
FR2629844B1 (en) * 1988-04-06 1991-09-27 Clextral PROCESS FOR THE MANUFACTURE OF A PAPER PULP FOR TRUST USE
JPH06695A (en) * 1992-06-18 1994-01-11 Hitachi Zosen Corp Screw type dehydrator
AT398090B (en) * 1992-05-15 1994-09-26 Andritz Patentverwaltung DEVICE FOR SEPARATING LIQUID FROM SOLIDS-LIQUID MIXTURES WITH A SOLIDS RETENTION DEVICE AND DEVICE IN THE FORM OF A SCREW PRESS
US5489383A (en) * 1993-06-16 1996-02-06 Hitachi Zosen Corporation Screw type dewatering machine
DE4407525C1 (en) * 1994-03-07 1995-11-02 Spirac Engineering Ab Device for separating solids from a liquid
AT409108B (en) * 1996-04-25 2002-05-27 Andritz Ag Maschf SCREW PRESS FOR SEPARATING LIQUIDS FROM SOLIDS-LIQUID MIXTURES, ESPECIALLY FIBROUS SUSPENSIONS
SE507499C2 (en) * 1996-10-07 1998-06-15 Spirac Engineering Ab Separation device provided with transport coil and screen means
DE19805451A1 (en) * 1998-02-11 1999-08-19 Bormet Maschinenbau Gmbh Refuse washer for the removal of toxic substances
DE29901683U1 (en) * 1999-02-01 1999-05-27 Heissenberger & Pretzler Ges. M.B.H., Frohnleiten Screw press
RU2162726C1 (en) * 1999-07-05 2001-02-10 Рязанская государственная сельскохозяйственная академия им. П.А. Костычева Press-filter for separation of suspensions and pressing-out of sediment
CA2298235A1 (en) * 2000-02-08 2001-08-08 Optimum Filtration Inc. Screw press
US6588331B2 (en) * 2000-12-19 2003-07-08 Voith Paper Inc. Screw press inlet section
SE0201184D0 (en) * 2002-04-18 2002-04-18 Coriarius Ab Screw compressor for compression of moist material and method for compression and washing
US7073433B2 (en) * 2003-03-11 2006-07-11 Jwc Environmental Auger dewatering system
JP2004314130A (en) * 2003-04-17 2004-11-11 Ngk Insulators Ltd Screw-press dehydrator
US7152522B2 (en) * 2004-02-09 2006-12-26 Derek Flor Screw press with radial gate valve and supported screw shaft
RU2271931C2 (en) * 2004-03-15 2006-03-20 Мичуринский государственный аграрный университет Screw extruded for vegetable raw material pressing
CN1699050B (en) * 2004-05-21 2010-07-14 安德里特斯公开股份有限公司 Spiral extruder for separating liquid from solid-liquid mixture, particularly from pasty suspension
JP4730809B2 (en) * 2004-09-10 2011-07-20 株式会社アマダ Chip discharge device
CN2868659Y (en) * 2005-12-13 2007-02-14 天津百利机电发展有限公司 Organic-matter-dewatering squeezer
SE531163C2 (en) * 2007-06-29 2009-01-07 Metso Paper Inc Device for feeding cellulose pulp / chips
CN201109192Y (en) * 2007-09-14 2008-09-03 刘万金 Cattle manure solid-liquid separating machine
AT506098B1 (en) * 2007-11-30 2011-04-15 Andritz Ag Maschf AUGER SURFACE
DE102008012154A1 (en) * 2008-03-01 2009-09-03 Karl-Heinz Tetzlaff Biomass conveyor for feeding into a pressure vessel
CN201626125U (en) * 2010-03-30 2010-11-10 福建省轻工机械设备有限公司 Solid-liquid separation device of screw press
US9610747B2 (en) * 2012-05-25 2017-04-04 Conveyor Eng. & Mfg. Co. Adjustable compression screw press
EP3153312B1 (en) * 2014-06-04 2019-07-31 Metawater Co., Ltd. Screw-conveyor-type separating device and waste water treatment system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0671491A (en) * 1992-08-26 1994-03-15 Hitachi Zosen Corp Screw type dehydrating machine

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CA2851289C (en) 2019-10-01
RU2606820C2 (en) 2017-01-10
BR112014008559A2 (en) 2017-04-18
AT511982B1 (en) 2013-10-15
RU2014116883A (en) 2015-11-20
US20150224730A1 (en) 2015-08-13
CN103946017B (en) 2016-08-03
CA2851289A1 (en) 2013-04-18
CN103946017A (en) 2014-07-23
JP2015502856A (en) 2015-01-29
JP6147260B2 (en) 2017-06-14
CL2014000907A1 (en) 2014-06-27
US10005252B2 (en) 2018-06-26
AT511982A1 (en) 2013-04-15
EP2766177A1 (en) 2014-08-20
WO2013053418A1 (en) 2013-04-18

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