EP0196291B1 - Mixing device - Google Patents

Mixing device Download PDF

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Publication number
EP0196291B1
EP0196291B1 EP86890044A EP86890044A EP0196291B1 EP 0196291 B1 EP0196291 B1 EP 0196291B1 EP 86890044 A EP86890044 A EP 86890044A EP 86890044 A EP86890044 A EP 86890044A EP 0196291 B1 EP0196291 B1 EP 0196291B1
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EP
European Patent Office
Prior art keywords
mixing
pressure plate
vessel
mixing device
mixing vessel
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.)
Expired - Lifetime
Application number
EP86890044A
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German (de)
French (fr)
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EP0196291A2 (en
EP0196291A3 (en
Inventor
Wolf-Dieter Kreuziger
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JM Voith AG
Original Assignee
KREUZIGER WOLF DIETER
Kreuziger Wolf-Dieter
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Publication of EP0196291A2 publication Critical patent/EP0196291A2/en
Publication of EP0196291A3 publication Critical patent/EP0196291A3/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
    • B01F31/40—Mixers with shaking, oscillating, or vibrating mechanisms with an axially oscillating rotary stirrer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/45—Closures or doors specially adapted for mixing receptacles; Operating mechanisms therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/75—Discharge mechanisms
    • B01F35/754—Discharge mechanisms characterised by the means for discharging the components from the mixer
    • B01F35/75425—Discharge mechanisms characterised by the means for discharging the components from the mixer using pistons or plungers
    • B01F35/754251—Discharge mechanisms characterised by the means for discharging the components from the mixer using pistons or plungers reciprocating in the mixing receptacle

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mixers With Rotating Receptacles And Mixers With Vibration Mechanisms (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Abstract

1. Mixing device for mixing viscous or pasty materials, in which at least one mixing tool (5) is arranged in a mixing vessel (1, 2) on at least one rotatably journalled mixture shaft (6), characterised in that in the mixing vessel (1, 2) a pressure plate (3) is guided sealingly and movably in the direction of the mixer shaft (6), that the mixer shaft (6) is passed sealingly and displaceably in the direction of its axis through the pressure plate (3) and that the mixing tool (5) is arranged between the pressure plate (3) and the bottom (4) of the mixing vessel (1, 2).

Description

Die Erfindung bezieht sich auf eine Mischvorrichtung für das Mischen dickflüssiger oder pastöser Massen, bei welcher in einem Mischgefäß wenigstens ein Mischwerkzeug an wenigstens einer rotierbar gelagerten Mischerwelle angeordnet ist. Solche dickflüssige oder pastöse Massen weisen meist eine große Adhäsion auf. Nach beendetem Mischvorgang müssen nun bei den bekannten Mischvorrichtungen dieser Art die an den Mischwerkzeugen anhaftenden Massen von diesen händisch entfernt werden und die Mischwerkzeuge müssen gereinigt werden. Auf das Mischgefäß muß hierauf eine Preßplatte aufgesetzt werden, durch welche die gemischte Masse aus dem Mischgefäß ausgepreßt wird. Solche Arbeitsvorgänge sind aufwendig und zeitraubend und es kommt noch der Nachteil hinzu, daß die gemischte Masse im Mischgefäß während des Zeitraumes der Reinigung der Mischwerkzeuge, von welchen ja die gemischte Masse in das Mischgefäß zurückgebracht werden muß, bis zum Aufsetzen der Preßplatte der Einwirkung der Luft ausgesetzt ist. Bei vielen Massen erfolgt durch die Lufteinwirkung bereits eine Härtung der Masse.The invention relates to a mixing device for mixing viscous or pasty masses, in which at least one mixing tool is arranged on at least one rotatably mounted mixer shaft in a mixing vessel. Such viscous or pasty masses usually have great adhesion. After the mixing process has ended, in the known mixing devices of this type the masses adhering to the mixing tools must be manually removed from them and the mixing tools must be cleaned. A press plate must then be placed on the mixing vessel, through which the mixed mass is pressed out of the mixing vessel. Such operations are complex and time-consuming and there is also the disadvantage that the mixed mass in the mixing vessel during the period of cleaning the mixing tools, from which the mixed mass must be returned to the mixing vessel, until the press plate is exposed to the action of the air is exposed. In the case of many masses, the mass already hardens as a result of exposure to air.

Aus GB-A-1,300,093 ist eine Mischvorrichtung bekannt, bei welcher ein Mischwerkzeug an einer rotierbas gelagerten Mischerwelle angeordnet ist und die Mischerwelle in Richtung ihrer Achse verschiebar durch den Deckel hindurchgeführt ist. De Deckel ist nicht bewegbar.From GB-A-1,300,093 a mixing device is known in which a mixing tool is arranged on a mixer shaft mounted in a rotary base and the mixer shaft is guided through the cover so as to be displaceable in the direction of its axis. The lid cannot be moved.

Die Erfindung stellt sich zur Aufgabe, den Mischvorgang und das Auspressen der gemischten Masse aus dem Mischbehälter zu erleichtern. Zur Erreichung dieser Aufgabe besteht die Erfindung im wesentlichen darin, daß im Mischgefäß eine Preßplatte in Richtung der Mischerwelle beweglich dichtend geführt ist, daß die Mischerwelle dichtend und in Richtung ihrer Achse verschiebbar durch die preßplatte hindurchgeführt ist und daß das Mischwerkzeug zwischen der Preßplatte und dem Boden des Mischgefäßes angeordnet ist. Es sind somit die Mischwerkzeuge bereits von Anfang an zwischen der Preßplatte und dem Boden des Mischgefäßes angeordnet. Die Preßplatte bildet einen dichten Abschluß des Mischgefäßes und es kann nach Beendigung des Mischvorganges einfach das Mischwerkzeug und die Preßplatte abgesenkt werden, wodurch ein Auspressen des gemischten Gutes aus dem Mischgefäß ohne Öffnen desselben ermöglicht wird. Der Mischvorgang und der Auspreßvorgang kann vom Anfang bis zum Ende bei geschlossenem Mischgefäß erfolgen, so daß ein Zutritt der Luft zum gemischten Gut vermieden wird, und es entfällt eine Betriebsunterbrechung zwischen Mischvorgang und Auspreßvorgang. Zweckmäßig ist hierbei gemäß der Erfindung das Mischgefäß in einen Bodenteil und einen mit diesem dicht verbindbaren Deckelteil unterteilt, wobei die preßplatte im Deckelteil und im Bodenteil dicht geführt ist. Bei geöffnetem Mischgefäß d.h. bei abgehobenem Deckel, kann das zu mischende Gut in das Mischgefäß eingebracht werden. Soferne feste Bestandteile mit flüssigen Bestandteilen gemischt werden sollen, können die flüssigen Bestandteile naturgemäß auch bei geschlossenem Deckel über Zuführungsöffnungen in das Mischgefäß eingebracht werden. Es kann naturgemäß aber auch das Mischgefäß nicht in einen Deckelteil und einen Bodenteil unterteilt sein, sondem dem das Mischgefäß kann auch von einem einheitlichen Gefäß gebildet werden, in welches nach Einfüllen des Mischgutes die Preßplatte eingesetzt wird. Die Unterteilung in einen Bodenteil und einen Deckelteil ist aber betriebsmäßig und konstruktiv günstiger.The object of the invention is to facilitate the mixing process and the pressing out of the mixed mass from the mixing container. To achieve this object, the invention consists essentially in the fact that a press plate is movably sealed in the mixing vessel in the direction of the mixer shaft, that the mixer shaft is guided sealingly and displaceable in the direction of its axis through the press plate and that the mixing tool between the press plate and the bottom of the mixing vessel is arranged. The mixing tools are thus arranged from the very beginning between the press plate and the bottom of the mixing vessel. The press plate forms a tight seal of the mixing vessel and, after the mixing process has ended, the mixing tool and the press plate can simply be lowered, thereby allowing the mixed material to be pressed out of the mixing vessel without opening the same. The mixing process and the squeezing process can be carried out from start to finish with the mixing vessel closed, so that access to the air to the mixed material is avoided, and there is no interruption in operation between the mixing process and the squeezing process. According to the invention, the mixing vessel is expediently divided into a base part and a cover part which can be connected tightly to it, the pressure plate being guided tightly in the cover part and in the base part. When the mixing vessel is open i.e. with the lid off, the material to be mixed can be introduced into the mixing vessel. If solid constituents are to be mixed with liquid constituents, the liquid constituents can of course also be introduced into the mixing vessel via feed openings with the lid closed. Naturally, however, the mixing vessel cannot be divided into a lid part and a bottom part, but the mixing vessel can also be formed by a uniform vessel into which the press plate is inserted after the mixed material has been poured in. The division into a base part and a cover part is operationally and structurally cheaper.

Der kleinste Abstand zwischen der Preßplatte und dem Boden des Mischgefäßes ist durch die Abmessungen des Mischwerkzeuges oder der Mischwerkzeuge in Richtung der Führung der Preßplatte bestimmt. Gemäß einer vorteilhaften Ausführungsform der Erfindung weist daher das Mischwerkzeug in Achsrichtung der Mischerwelle geringere Dimensionen auf als in Radialrichtung. Gemäß einer bevorzugten Ausführungsform der Erfindung ist das Mischwerkzeug eine senkrecht zur Mischerwelle stehende, im wesentlichen glatte Scheibe, so daß der Abstand der Preßplatte vom Boden des Mischgefäßes am Ende des Auspreßvorganges auf ein Minimum reduziert ist. Vorzugsweise ist hiebei gemäß der Erfindung die Anordnung so getroffen, daß Deckel- und Bodenteil kreiszylindrisch sind und das Mischwerkzeug eine Kreisscheibe ist, deren Durchmesser kleiner ist als der Innendurchmesser von Deckel- und Bodenteil, wobei der Außenrand der Kreisscheibe in Abstand von der Innenwand von Deckel- und Bodenteil liegt. Da die Welle, an welcher das Mischwerkzeug angeordnet ist, in Achsrichtung verschiebbar durch die preßplatte hindurchgeführt ist, kann eine solche Kreisscheibe während des Mischvorganges in Richtung der Achse hin-und herbewegt werden, wobei das Mischgut zwischen dem Außenrand der Kreisscheibe und der Innenwand des Mischgefäßes hindurchtreten kann. Auf diese Weise ergibt eine solche Kreisscheibe einen guten Mischeffekt.The smallest distance between the press plate and the bottom of the mixing vessel is determined by the dimensions of the mixing tool or the mixing tools in the direction of the guide of the press plate. According to an advantageous embodiment of the invention, the mixing tool therefore has smaller dimensions in the axial direction of the mixer shaft than in the radial direction. According to a preferred embodiment of the invention, the mixing tool is an essentially smooth disk which is perpendicular to the mixer shaft, so that the distance of the press plate from the bottom of the mixing vessel is reduced to a minimum at the end of the extrusion process. Preferably, according to the invention, the arrangement is such that the cover and base part are circular-cylindrical and the mixing tool is a circular disc whose diameter is smaller than the inside diameter of the cover and base part, the outer edge of the circular disc being at a distance from the inner wall of the cover - And bottom part is. Since the shaft on which the mixing tool is arranged can be moved in the axial direction through the press plate, such a circular disc can be moved back and forth during the mixing process in the direction of the axis, the material to be mixed between the outer edge of the circular disc and the inner wall of the mixing vessel can step through. In this way, such a circular disc gives a good mixing effect.

Gemäß der Erfindung ist vorzugsweise der Raum zwischen der Preßplatte und dem Boden des Mischgefäßes unter Unterdruck bzw. unter Vakuum setzbar. Da die Preßplatte das Mischgefäß dicht abschließt, kann somit das Mischgut während des gesamten Mischvorganges und während des gesamten Auspreßvorganges unter Unterdruck bzw. unter Vakuum gehalten sein. Gemäß der Erfindung ist zweckmäßig die Mischerwelle senkrecht angeordnet. Dies ist vorteilhaft für die Einfüllung des Mischgutes in das Mischgefäß und ist weiters auch vorteilhaft für den Mischvorgang im Mischgefäß und den Auspreßvorgang aus dem Mischgefäß. Gemäß der Erfindung ist zweckmäßig im Bereich nahe dem Boden eine Austragsöffnung vorgesehen.According to the invention, the space between the press plate and the bottom of the mixing vessel can preferably be placed under negative pressure or under vacuum. Since the press plate seals the mixing vessel tightly, the material to be mixed can thus be kept under negative pressure or under vacuum during the entire mixing process and during the entire pressing process. According to the invention, the mixer shaft is expediently arranged vertically. This is advantageous for the filling of the material to be mixed into the mixing vessel and is also advantageous for the mixing process in the mixing vessel and the squeezing process from the mixing vessel. According to the invention, a discharge opening is expediently provided in the area near the floor.

Das erfindungsgemäße Verfahren zum Betrieb der erfindungsgemäßen Mischvorrichtung besteht im wesentlichen darin, daß das Mischgut bei geöffnetem Deckelteil in den Bodenteil eingebracht wird, der Mischbehälter bei geschlossenem Deckelteil evakuiert bzw. unter Unterdruck gesetzt wird, daß zumindest während eines Teiles des Mischvorganges die Preßplatte in Richtung zum Boden gepreßt wird, daß am Ende des Mischvorganges das gemischte Gut durch die Preßplatte über die Austragsöffnung ausgepreßt wird und daß nach Auspressen des gemischten Gutes Reinigungsflüssigkeit durch die Preßplatte über die Austragsöffnung in den Mischbehälter eingesaugt wird.The method according to the invention for operating the mixing device according to the invention essentially consists in the fact that the material to be mixed is inserted into the base part when the cover part is open is brought, the mixing container is evacuated with the lid part closed or placed under negative pressure, that at least during a part of the mixing process the press plate is pressed towards the bottom, that at the end of the mixing process the mixed material is pressed through the press plate through the discharge opening and that after the mixed material has been pressed out, cleaning liquid is sucked in through the pressure plate via the discharge opening into the mixing container.

In der Zeichnung ist die Erfindung anhand eines Ausführungsbeispieles schematisch dargestellt, wobei die Fig. I bis 7 die Mischvorrichtung in verschiedenen Stadien des Misch- und Auspreßvorganges zeigen.In the drawing, the invention is shown schematically on the basis of an exemplary embodiment, with FIGS. I to 7 showing the mixing device in various stages of the mixing and pressing process.

Das Mischgefäß ist in einen Bodenteil 1 und einen Deckelteil 2 unterteilt. Im Deckelteil ist eine Preßplatte 3 dichtend geführt, welche durch nicht dargestellte hydraulische Aggregate in Richtung nach unten verlagerbar ist. Zwischen der Preßplatte 3 und dem Boden 4 des Mischgefäßes 1, 2 ist ein von einer Scheibe gebildetes Mischwerkzeug 5 angeordnet, welches durch eine Welle 6 in Drehung versetzbar ist. Die senkrechte Welle 6 ist in der Preßplatte 3 dichtend und auf und ab verschiebbar geführt. Die Mischscheibe 5 ist senkrecht zur Achse der Welle 6 an dieser festgelegt. 7 ist eine Austragsöffnung. 8 ist eine verschließbare Öffnung, durch welche ein flüssiger Anteil des Mischgutes in den Mischbehälter 1, 2 eingefüllt werden kann. 9 ist ein Flansch des Deckelteiles 2, der beim Schließen des Mischgefäßes dicht auf einem Flansch 10 des Bodenteiles 1 aufsetzbar ist.The mixing vessel is divided into a bottom part 1 and a lid part 2. In the cover part a press plate 3 is sealingly guided, which can be displaced downwards by hydraulic units, not shown. Between the press plate 3 and the bottom 4 of the mixing vessel 1, 2 is arranged a mixing tool 5 formed by a disc, which can be set in rotation by a shaft 6. The vertical shaft 6 is sealingly in the press plate 3 and guided up and down. The mixing disc 5 is fixed perpendicular to the axis of the shaft 6 on the latter. 7 is a discharge opening. 8 is a closable opening through which a liquid portion of the material to be mixed can be filled into the mixing container 1, 2. 9 is a flange of the cover part 2, which can be placed tightly on a flange 10 of the base part 1 when the mixing vessel is closed.

In Fig. 1 ist das Mischgefäß 1, 2 geöffnet dargestellt. Der Deckelteil 2 ist vom Bodenteil 1 abgehoben. In dieser Stellung kann das feste pulverförmige Mischgut 11 in das Mischgefäß 1, 2 eingefüllt werden.In Fig. 1, the mixing vessel 1, 2 is shown open. The lid part 2 is lifted off the bottom part 1. In this position, the solid powdery mixture 11 can be poured into the mixing vessel 1, 2.

Hierauf wird der Deckelteil 2 in die Stellung nach Fig.2 abgesenkt. Der Flansch 9 liegt dichtend am Flansch 10 auf. Das Mischgefäß 1, 2 wird evakuiert bzw. unter Unterdruck gesetzt. Die Scheibe 5 wird abgesenkt. Die Rotation der Scheibe 5 kann, wie durch einen Pfeil 12 angedeutet ist, beginnen.The cover part 2 is then lowered into the position according to FIG. The flange 9 lies on the flange 10 in a sealing manner. The mixing vessel 1, 2 is evacuated or placed under negative pressure. The disc 5 is lowered. The rotation of the disk 5 can begin, as indicated by an arrow 12.

In Fig. 3 ist der Beginn des Mischvorganges dargestellt. Der feste Anteil 11 des Mischgutes befindet sich im Mischbehälter. Durch die Öffnung 8 wird der flüssige Anteil 13 eingefüllt. Hiebei befindet sich die Preßplatte 3 noch in ihrer oberen Stellung.In Fig. 3 the beginning of the mixing process is shown. The fixed portion 11 of the mix is in the mixing container. The liquid portion 13 is filled through the opening 8. The press plate 3 is still in its upper position.

In Fig. 4 ist die Stellung der preßplatte 3 in der nach unten gepreßten Stellung dargestellt. Die Mischscheibe 5 rotiert, wobei die Welle in Richtung der pfeile 14 auf und ab bewegt wird. Der feste Anteil 11 des Mischgutes ist bereits mit dem flüssigen Anteil 13 desselben vermischt. Da das Mischgefäß 1, 2 bereits evakuiert ist, befinden sich im Mischgut keine Lufteinschlüsse und die Preßplatte 3 kann ohne weiteres mit großer Kraft nach unten gedrückt werden.In Fig. 4 the position of the press plate 3 is shown in the pressed down position. The mixing disk 5 rotates, the shaft being moved up and down in the direction of the arrows 14. The solid portion 11 of the mix is already mixed with the liquid portion 13 of the same. Since the mixing vessel 1, 2 has already been evacuated, there are no air pockets in the material to be mixed and the pressure plate 3 can easily be pressed down with great force.

Im Verlaufe des Mischvorganges wird, wie Fig. 5 zeigt, die Preßplatte 3 noch weiter nach unten gedrückt. Der Mischvorgang wird fortgesetzt, wobei die Mischscheibe 5 rotiert und auf und ab geht. Nach Beendigung des Mischvorganges wird die Welle 6 mit der Mischscheibe 5 stillgesetzt. Die Preßplatte 3 wird nach unten gedrückt, wobei das gemischte Gut durch die Austragsöffnung 7 ausgepreßt wird. Das Ende des Auspreßvorganges ist in Fig. 6 dargestellt.In the course of the mixing process, as shown in FIG. 5, the press plate 3 is pressed further down. The mixing process continues, with the mixing disk 5 rotating and going up and down. After the mixing process, the shaft 6 with the mixing disc 5 is stopped. The press plate 3 is pressed down, the mixed material being pressed out through the discharge opening 7. The end of the squeezing process is shown in Fig. 6.

Nach Beendigung des Austrittsvorganges wird die Preßplatte 3 wieder nach oben in die in Fig. 7 dargestellte Stellung verlagert. Durch die Austragsöffnung 7 wird hiebei Reinigungsflüssigkeit 15, beispielsweise ein Lösungsmittel, in das Mischgefäß 1, 2 eingesogen. Die Mischscheibe 5 wird wieder in Rotation versetzt (Pfeil 12) und führt eine auf- und abgehende Bewegung (Pfeile 14) aus, so daß das Mischwerkzeug 5 und das Mischgefäß 1, 2 gereinigt wird.After completion of the exit process, the press plate 3 is shifted back up to the position shown in Fig. 7. Cleaning liquid 15, for example a solvent, is drawn into the mixing vessel 1, 2 through the discharge opening 7. The mixing disc 5 is rotated again (arrow 12) and performs an up and down movement (arrows 14), so that the mixing tool 5 and the mixing vessel 1, 2 are cleaned.

Hierauf wird die Reinigungsflüssigkeit 15 durch die Austragsöffnung 7 ausgepreßt, wobei die Preßplatte 3 und die Mischscheibe 5 in die Stellung nach Fig. 6 gelangt. Hierauf wird die Preßplatte 3 wieder angehoben. Das Mischgefäß 1, 2 wird, wie in Fig. 1 dargestellt, wieder geöffnet und es beginnt die neue Füllung.The cleaning liquid 15 is then pressed out through the discharge opening 7, the pressure plate 3 and the mixing disk 5 reaching the position shown in FIG. 6. Then the press plate 3 is raised again. The mixing vessel 1, 2 is opened again, as shown in FIG. 1, and the new filling begins.

Claims (9)

1. Mixing device for mixing viscous or pasty materials, in which at least one mixing tool (5) is arranged in a mixing vessel (1, 2) on at least one rotatably journalled mixture shaft (6), characterised in that in the mixing vessel (1, 2) a pressure plate (3) is guided sealingly and movably in the direction of the mixer shaft (6), that the mixer shaft (6) is passed sealingly and displaceably in the direction of its axis through the pressure plate (3) and that the mixing tool (5) is arranged between the pressure plate (3) and the bottom (4) of the mixing vessel (1, 2).
2. Mixing device according to claim 1, characterised in that the mixing vessel (1, 2) is divided into a bottom part (1) and a cover part (2) sealedly couplable therewith and that the pressure plate (3) is sealingly guided in the cover part (2) and the bottom part (1).
3. Mixing device according to claim 1 or 2, characterised in that the mixing tool (5) has smaller dimensions in the axial direction of the mixer shaft than in the radial direction.
4. Mixing device according to claim 1, 2 or 3, characterised in that the mixing tool (5) is an essentially plain disk (5) disposed perpendicularly to the mixer shaft (6).
5. Mixing device according to one of claims 1 to 4, characterised in that the cover and bottom parts (2, 1) are right cylindrical and the mixing tool is a circular plate (1) the diameter of which is smaller than the inner diameter of the cover and bottom parts (2, 1), whereby the outer edge of the circular plate (1) lies at a distance from the inner wall of the cover and bottom parts.
6. Mixing device according to one of claims 1 to 5, characterised in that the space between the pressure plate (3) and the bottom (4) of the mixer vessel may be subjected to reduced pressure or vacuum.
7. Mixing device according to one of claims 1 to 6, characterised in that the mixer shaft (6) is arranged vertically.
8. Mixing device according to one of claims 1 to 7, characterised in that a discharge opening (7) is provided in the region adjacent the bottom (4).
9. A process for the operation of a mixing device according to one of claims 1 to 8. characterised in that the material to be mixed is charged into the bottom part while the cover part is open, with the cover part closed the mixing vessel is evacuated or subjected to reduced pressure, that during at least a part of the mixing process the pressure plate is pressed towards the bottom, that at the end of the mixing process the mixed material is pressed out of the discharge opening through the pressure plate and that after pressing out of the mixed material cleaning liquid is sucked into the mixing vessel and through the pressure plate from the discharge opening.
EP86890044A 1985-03-21 1986-02-27 Mixing device Expired - Lifetime EP0196291B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0085785A AT382090B (en) 1985-03-21 1985-03-21 MIXING DEVICE AND METHOD FOR THEIR OPERATION
AT857/85 1985-03-21

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EP0196291A2 EP0196291A2 (en) 1986-10-01
EP0196291A3 EP0196291A3 (en) 1988-11-09
EP0196291B1 true EP0196291B1 (en) 1990-09-05

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EP86890044A Expired - Lifetime EP0196291B1 (en) 1985-03-21 1986-02-27 Mixing device

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US (1) US4952065A (en)
EP (1) EP0196291B1 (en)
AT (1) AT382090B (en)
CA (1) CA1266464A (en)
DE (1) DE3673844D1 (en)

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Also Published As

Publication number Publication date
CA1266464A (en) 1990-03-06
US4952065A (en) 1990-08-28
ATA85785A (en) 1986-06-15
DE3673844D1 (en) 1990-10-11
EP0196291A2 (en) 1986-10-01
EP0196291A3 (en) 1988-11-09
AT382090B (en) 1987-01-12

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