EP0301151B1 - Device for homogenizing a fluid mixture - Google Patents

Device for homogenizing a fluid mixture Download PDF

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Publication number
EP0301151B1
EP0301151B1 EP87810436A EP87810436A EP0301151B1 EP 0301151 B1 EP0301151 B1 EP 0301151B1 EP 87810436 A EP87810436 A EP 87810436A EP 87810436 A EP87810436 A EP 87810436A EP 0301151 B1 EP0301151 B1 EP 0301151B1
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EP
European Patent Office
Prior art keywords
slots
ring
vanes
outer ring
rotor
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
EP87810436A
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German (de)
French (fr)
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EP0301151A1 (en
Inventor
Michael Stoerzbach
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Individual
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Individual
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Filing date
Publication date
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Priority to AT87810436T priority Critical patent/ATE66833T1/en
Priority to ES198787810436T priority patent/ES2025697T3/en
Priority to DE8787810436T priority patent/DE3772767D1/en
Priority to EP87810436A priority patent/EP0301151B1/en
Publication of EP0301151A1 publication Critical patent/EP0301151A1/en
Application granted granted Critical
Publication of EP0301151B1 publication Critical patent/EP0301151B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/062—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives with rotor elements extending axially in close radial proximity of a concentrically arranged slotted or perforated ring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/17—Stirrers with additional elements mounted on the stirrer, for purposes other than mixing
    • B01F27/171—Stirrers with additional elements mounted on the stirrer, for purposes other than mixing for disintegrating, e.g. for milling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details

Definitions

  • the present invention relates to a device for homogenizing a liquid mixture, in the form of a cylindrical arrangement of at least two comminution members seated on holders, the outer, stationary comminution member having a ring with slots and the inner, rotatable comminution member having at least two vanes.
  • Such devices have been manufactured and sold under various trade names for decades and are described in a number of patents, including CH-A-466 010, CH-A-604 894 and in particular also in German Utility Model No. 84 28 851, in a guide beam homogenizer is described, which has a high delivery rate and is particularly suitable for homogenizing, breaking up agglomerates in viscous media or quick loosening of salts, resins and the like.
  • FR-A-2 265 444 describes a mixing device for treating and / or mixing flowable media. It has an inner rotor with shredding blades, which rotates inside a ring which is provided with holes and is surrounded by an outer ring, also with holes. The rings are not held against the rotor. The inner ring can be replaced to change the cross-section of the normally aligned holes.
  • stator 1 shows the stator 1 arranged on a holder 11 and the rotor 2 fastened on a shaft 12, wherein generally only the rotor rotates and the stator, as its name implies, is fixed.
  • Slits 4 are arranged on the jacket 3 of the cylindrical stator and are arranged approximately perpendicular to the central axis M.
  • the rotor 2 as described in detail in the German utility model mentioned at the outset, consists of two or more blades 18, the end face or an edge thereof of which is designed as a knife edge.
  • the narrow sides of the slots 4, which open into the interior of the stator, are designed as cutting edges and work together with the edges of the rotor blades in order to act as scissors that can also effectively cut long fibers, for example.
  • the end faces of the rotor form an angle deviating from 90 ° in a known manner with the side faces which are parallel to one another, the inclination of this face being designed such that the cutting edges are in the same direction with respect to a direction of rotation.
  • the rotor blades and the slot broad sides do not need to show any cutting effects.
  • This narrowing of the slots is achieved by arranging a ring 5 above the jacket 3 of the stator, which ring has in principle the same slots 6 as the slots 4, although this is not absolutely necessary.
  • the outer ring is fastened to the stator 1 or holder 11 by means of a screw 7.
  • the device according to the invention is part of a system and is arranged in a vessel 8.
  • the vessel has an inlet 9 at the bottom and an optionally valve-controlled outlet 10 from which the homogenized liquid can be removed.
  • the holder 13 is arranged in a corresponding recess 14 in the vessel so that it can move up and down, as can be seen from the arrow 15. If not shown, the holder can optionally be sealed off from the interior of the vessel via a shaft seal.
  • the outer stator ring 16 is fixedly connected to the vessel via the inlet 9, while the inner stator ring 17 connected to the holder can be moved up and down relative to the outer ring via the optionally motor-driven holder 13, so that the width of the slots 6 and 4 is thereby on the outer or inner stator ring can be changed or precisely adjusted.
  • the remaining features, i.e. the rotor 2 and the rotor shaft 12 and the configuration of the slots are the same as in the exemplary embodiment according to FIG. 1.
  • the holder 13 can also be rotatably driven, if necessary.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Rotary Pumps (AREA)
  • Hydraulic Turbines (AREA)

Abstract

The device has an external comminuting element ring (1) constructed as a stator, in the form of a cylinder, on the outer surface (3) of which slots (5) aligned approximately perpendicularly with respect to the central axis (M) are arranged, whilst the inner comminuting element (2) constructed as a rotor has two vanes (18) whose end faces are constructed as knife blades. In order to increase the performance of the device without requiring a relatively large rotor speed, an outer ring (5) with slots (6) is attached around the stator (1) by means of screws in such a way that it can be moved up and down and possibly also in a rotating manner, by which means principally the width of the slots can be adjusted or narrowed. As a result, a higher output speed of the liquid and thus a higher degree of efficiency is obtained with the same rotor performance. <IMAGE>

Description

Die vorliegende Erfindung bezieht sich auf eine Vorrichtung zum Homogenisieren eines Flüssigkeitsgemisches, in Form einer zylindrischen Anordnung mindestens zweier auf Haltern sitzender Zerkleinerungsorgan, wobei das äussere, feststehende Zerkleinerungsorgan ein Ring mit Schlitzen und das innere, rotierbare Zerkleinerungsorgan mindestens zwei Flügel aufweist. Solche Vorrichtungen werden seit Jahrzehnten unter verschiedenen Handelsnamen hergestellt und vertrieben sowie in einer Anzahl von Patentschriften beschrieben, so unter anderem in der CH-A-466 010, CH-A-604 894 und insbesondere auch im deutschen Gebrauchsmuster Nr. 84 28 851, in dem ein Leitstrahl-Homogenisator beschrieben wird, der eine hohe Förderleistung aufweist und insbesondere für das Homogenisieren, Zerschlagen von Agglomeraten in viskosen Medien oder Schnellösen von Salzen, Harzen und dergleichen geeignet ist.The present invention relates to a device for homogenizing a liquid mixture, in the form of a cylindrical arrangement of at least two comminution members seated on holders, the outer, stationary comminution member having a ring with slots and the inner, rotatable comminution member having at least two vanes. Such devices have been manufactured and sold under various trade names for decades and are described in a number of patents, including CH-A-466 010, CH-A-604 894 and in particular also in German Utility Model No. 84 28 851, in a guide beam homogenizer is described, which has a high delivery rate and is particularly suitable for homogenizing, breaking up agglomerates in viscous media or quick loosening of salts, resins and the like.

In der FR-A-2 265 444 ist eine Mischvorrichtung zur Behandlung und/oder Mischung fliessfähiger Medien beschrieben. Sie weist einen inneren Rotor mit Zerkleinerungsflügeln auf, der sich im Inneren eines Ringes dreht, der mit Löchern versehen ist und von einem äusseren Ring, ebenfalls mit Löchern, umgeben ist. Die Ringe sind gegenüber dem Rotor nicht festgehalten. Zur Veränderung des Querschnitts der normalerweise fluchtenden Löcher kann der Innenring ausgewechselt werden.FR-A-2 265 444 describes a mixing device for treating and / or mixing flowable media. It has an inner rotor with shredding blades, which rotates inside a ring which is provided with holes and is surrounded by an outer ring, also with holes. The rings are not held against the rotor. The inner ring can be replaced to change the cross-section of the normally aligned holes.

Es ist ausgehend von den vorbekannten Vorrichtungen Aufgabe der vorliegenden Erfindung, diese einerseits mit einer höheren Emulgierwirkung zu versehen, ohne die Drehgeschwindigkeit des Rotors zu erhöhen, und andererseits diese besser verschiedenen Anwendungsbereichen anpassbar zu gestalten. Diese Aufgabe wird mit einer in den Ansprüchen definierten Vorrichtung gelöst.Starting from the previously known devices, it is the object of the present invention to provide them with a higher emulsifying effect on the one hand without increasing the rotational speed of the rotor and on the other hand to make them better adaptable to different areas of application. This object is achieved with a device defined in the claims.

Die Erfindung wird im einzelnen anhand einer Zeichnung von zwei Ausführungsbeispielen näher erläutert, wobei

Figur 1
im Schnitt ein erstes Ausführungsbeispiel, und
Figur 2
im Schnitt ein zweites Ausführungsbeispiel darstellt.
The invention is explained in more detail with reference to a drawing of two exemplary embodiments, wherein
Figure 1
on average a first embodiment, and
Figure 2
represents a second embodiment in section.

Man erkennt in Figur 1 den auf einem Halter 11 angeordneten Stator 1 und den auf einer Welle 12 befestigten Rotor 2, wobei sich im allgemeinen nur der Rotor dreht und der Stator, wie sein Name besagt, fest ist. Am Mantel 3 des zylindrischen Stators sind Schlitze 4 angeordnet, die etwa senkrecht zu der Mittelachse M angeordnet sind.1 shows the stator 1 arranged on a holder 11 and the rotor 2 fastened on a shaft 12, wherein generally only the rotor rotates and the stator, as its name implies, is fixed. Slits 4 are arranged on the jacket 3 of the cylindrical stator and are arranged approximately perpendicular to the central axis M.

Der Rotor 2 besteht, wie im eingangs erwähnten deutschen Gebrauchsmuster ausführlich beschrieben, aus zwei oder mehr Flügeln 18, deren Stirnfläche bzw. eine Kante davon, als Messerschneide ausgebildet ist. Die Schmalseiten der Schlitze 4, die in das Innere des Stators münden, sind als Schneidkanten ausgebildet und arbeiten mit den Kanten der Rotorflügel zusammen, um als Scheren zu wirken, die beispielsweise auch lange Fasern wirksam zerschneiden können. Um die Abscherwirkung zu erhöhen, bilden die Stirnflächen des Rotors in bekannter Weise mit den parallel zueinander stehenden Seitenflächen einen von 90° abweichenden Winkel, wobei die Neigung dieser Fläche derart ausgebildet ist, dass die Schneiden gleichsinnig bezüglich einer Drehrichtung sind. Falls jedoch keinerlei Feststoffe verarbeitet werden sollen, brauchen die Rotorflügel und die Schlitzbreitseiten keine Schneidwirkungen zu zeigen.The rotor 2, as described in detail in the German utility model mentioned at the outset, consists of two or more blades 18, the end face or an edge thereof of which is designed as a knife edge. The narrow sides of the slots 4, which open into the interior of the stator, are designed as cutting edges and work together with the edges of the rotor blades in order to act as scissors that can also effectively cut long fibers, for example. In order to increase the shearing effect, the end faces of the rotor form an angle deviating from 90 ° in a known manner with the side faces which are parallel to one another, the inclination of this face being designed such that the cutting edges are in the same direction with respect to a direction of rotation. However, if no solids are to be processed, the rotor blades and the slot broad sides do not need to show any cutting effects.

Versuche haben nun gezeigt, dass für ein wirkungsvolles Emulgieren eines Flüssig-Flüssig-Gemisches eine hohe Strömungsgeschwindigkeit notwendig ist. Diese kann man selbstverständlich durch Erhöhung der Umfangsgeschwindigkeit des Rotors, bzw. Relativgeschwindigkeit Rotor-Stator, steigern, doch resultiert daraus nur eine mässige Erhöhung der Strömungsgeschwindigkeit innerhalb des Gerätes. So ist beispielsweise bei einer Umfangsgeschwindigkeit des Rotors von 20 m/s die Strömungsgeschwindigkeit nur etwa 3 m/s. Eine Erhöhung der Strömungsgeschwindigkeit könnte auch durch Druckerhöhung erzielt werden, doch ist dies mit den eingangs erwähnten Rotor-Stator-Systemen nicht durchführbar, da durch die parallel zu den Rotorflügeln stehenden Zähne der Strom zu stark gebrochen wird.Experiments have now shown that a high flow rate is necessary for an effective emulsification of a liquid-liquid mixture. This can of course be increased by increasing the peripheral speed of the rotor or relative speed of the rotor-stator, but this results in only one moderate increase in flow velocity within the device. For example, at a peripheral speed of the rotor of 20 m / s, the flow speed is only about 3 m / s. An increase in the flow velocity could also be achieved by increasing the pressure, but this cannot be carried out with the rotor-stator systems mentioned at the outset, since the current is broken too strongly by the teeth which are parallel to the rotor blades.

Von obigen Erkenntnissen ausgehend wird erfindungsgemäss die Strömungsgeschwindigkeit und damit die Scherung und somit die Emulgierwirkung bei gleich bleibender Pumpleistung der Rotorflügel dadurch erhöht, dass die Breite der Schlitze 4 verengt wird.Based on the above findings, the flow velocity and thus the shear and thus the emulsifying effect are increased while the pumping power of the rotor blades remains the same by narrowing the width of the slots 4.

Diese Verengung der Schlitze wird dadurch erzielt, dass über dem Mantel 3 des Stators ein Ring 5 angeordnet wird, der im Prinzip die gleichen Schlitze 6 aufweist wie die Schlitze 4, wobei dies jedoch nicht unbedingt notwendig ist. Gemäss der Ausführungsform von Figur 1 wird der äussere Ring mittels einer Schraube 7 am Stator 1, bzw. Halter 11 befestigt. Zur Erzielung einer höheren Austrittsgeschwindigkeit ist im wesentlichen nur die axiale Verschiebung erforderlich, d.h. die Verschiebung in Richtung der Mittelachse M. Falls nur die Verschiebung in der Längsrichtung erwünscht ist, kann eine Drehsicherung in Form einer Längsnut 19, in der ein gefederter Stift 20 stösst, vorgesehen werden, um eine genaue Längsführung zu gewährleisten. In gewissen Fällen und für bestimmte Anwendungsbereiche könnte es auch vorteilhaft sein, nicht nur die Schlitzbreite sondern auch die Schlitzlänge zu verändern, so dass nach Lösen der Schraube 7 der äussere Ring nicht nur axial sondern auch rotativ verschoben werden kann, falls keine Drehsicherung vorhanden ist oder diese überwunden wird. Für die lösbare Befestigung des äusseren Ringes kommen auch weitere Mittel und Halter in Frage, die auch mechanisch oder elektronisch steuerbar sein können.This narrowing of the slots is achieved by arranging a ring 5 above the jacket 3 of the stator, which ring has in principle the same slots 6 as the slots 4, although this is not absolutely necessary. According to the embodiment in FIG. 1, the outer ring is fastened to the stator 1 or holder 11 by means of a screw 7. To achieve a higher exit speed, essentially only the axial displacement is required, ie the displacement in the direction of the central axis M. If only the displacement in the longitudinal direction is desired, a rotation lock in the form of a longitudinal groove 19, in which a spring-loaded pin 20 abuts, be provided to ensure accurate longitudinal guidance. In certain cases and for certain areas of application, it could also be advantageous to change not only the slot width but also the slot length, so that after loosening the screw 7, the outer ring can be moved not only axially but also rotationally if there is no rotation lock or this is overcome. Also come for the releasable attachment of the outer ring further means and holders in question, which can also be mechanically or electronically controllable.

Im Ausführungsbeispiel gemäss Figur 2 ist die erfindungsgemässe Vorrichtung Teil einer Anlage und in einem Gefäss 8 angeordnet. Das Gefäss hat unten einen Einlass 9 und einen gegebenenfalls ventilgesteuerten Auslass 10, aus welchem die homogenisierte Flüssigkeit entnommen werden kann. Der Halter 13 ist in einer entsprechenden Ausnehmung 14 im Gefäss in dieser auf und ab bewegbar angeordnet, wie dies aus dem Pfeil 15 hervorgeht. Nicht eingezeichnet kann gegebenenfalls der Halter über eine Wellendichtung gegenüber dem Gefässinneren abgedichtet sein. Der äussere Statorring 16 ist fest über dem Einlass 9 mit dem Gefäss verbunden, während der innere mit dem Halter verbundene Statorring 17 über den gegebenenfalls motorbetriebenen Halter 13 gegenüber dem äusseren Ring auf und ab bewegbar ist, so dass dadurch die Breite der Schlitze 6 und 4 am äusseren, bzw. inneren Statorring verändert, bzw. genau eingestellt werden kann. Die übrigen Merkmale, d.h. der Rotor 2 sowie die Rotorwelle 12 und die Ausgestaltung der Schlitze sind die gleichen wie in dem Ausführungsbeispiel gemäss Figur 1. Ausserdem kann der Halter 13 gegebenenfalls auch noch drehbar angetrieben sein.In the exemplary embodiment according to FIG. 2, the device according to the invention is part of a system and is arranged in a vessel 8. The vessel has an inlet 9 at the bottom and an optionally valve-controlled outlet 10 from which the homogenized liquid can be removed. The holder 13 is arranged in a corresponding recess 14 in the vessel so that it can move up and down, as can be seen from the arrow 15. If not shown, the holder can optionally be sealed off from the interior of the vessel via a shaft seal. The outer stator ring 16 is fixedly connected to the vessel via the inlet 9, while the inner stator ring 17 connected to the holder can be moved up and down relative to the outer ring via the optionally motor-driven holder 13, so that the width of the slots 6 and 4 is thereby on the outer or inner stator ring can be changed or precisely adjusted. The remaining features, i.e. the rotor 2 and the rotor shaft 12 and the configuration of the slots are the same as in the exemplary embodiment according to FIG. 1. In addition, the holder 13 can also be rotatably driven, if necessary.

Durch die Verengung der Schlitze kann eine bessere Homogenisierung erzielt werden, da die Austrittsgeschwindigkeit dadurch wesentlich erhöht wird und dies ohne die Umdrehungsgeschwindigkeit des Rotors zu erhöhen. Weitere, vorbekannte Eigenschaften können selbstverständlich auch für diese Vorrichtung übernommen werden, beispielsweise die Anordnung von Durchbrüchen in Form von kreisrunden oder anders gestalteten Oeffnungen in den Rotorflügeln sowie das Kalthärten oder das Versehen mit einer Hartstoffbeschichtung derselben, wobei beispielsweise die Abscheidung aus der Gasphase vorgesehen ist. Wichtig ist eine hohe Pumpleistung des Rotors.By narrowing the slots, better homogenization can be achieved, since the exit speed is thereby increased considerably and this without increasing the speed of rotation of the rotor. Further, previously known properties can of course also be adopted for this device, for example the arrangement of openings in the form of circular or differently shaped openings in the rotor blades and the cold hardening or the provision of a hard material coating thereof, for example the deposition from the gas phase is provided. A high pump output of the rotor is important.

Claims (9)

  1. A device for homogenizing a liquid mixture, in the form of a cylindrical arrangement of at least two comminuting members which are attached to holders (11,13; 12), the outer, stationary comminuting member (1) being a ring (3,17) with slots (4), and the inner, rotatable comminuting member (2) having at least two vanes, characterized in that a second ring (5,16) with slots (6) is disposed around the ring (3,17) of the outer comminuting member (1), and that said two rings (3,5; 17,16) are displaceable with respect to each other at least along their common center axis (M).
  2. A device according to claim 1, characterized in that the slots (4,6) of the inner (3,17) and of the outer ring (5,16) are disposed about perpendicularly with respect to the center axis (M).
  3. A device according to claim 1 or 2, characterized in that the outer ring (5) is adapted to be fastened to the holder (11) of the outer comminution member (1) by means of a screw (7).
  4. A device according to claim 3, characterized in that the outer ring (5) is prevented from rotating during its displacement by an anti-rotative lock (19,20).
  5. A device according to claim 1 or 2, characterized in that it is disposed as a part of an apparatus in a container (8) having an inlet (9) and an outlet (10), the outer ring (16) being disposed above the inlet (9) and connected to the container (8), and the inner ring (17), which is connected to the holder (13), being disposed in a channel (14) in the container (8) in a displaceable manner with respect to said outer ring (16).
  6. A device according to any one of claims 1 to 5, characterized in that the end faces of the vanes (18) form cutting edges, the angle between the end faces and the lateral surfaces deviating from 90°.
  7. A device according to any one of claims 1 to 6, characterized in that the vanes are provided with openings.
  8. A device according to any one of claims 1 to 7, characterized in that the vanes (18), in particular their cutting edges, are cold-strained or coated with a mechanically resistant material.
  9. A device according to any one of claims 1 to 8, characterized in that the narrow sides of the slots (5,6) facing the cutting edges of the vanes form cutting edges.
EP87810436A 1987-07-31 1987-07-31 Device for homogenizing a fluid mixture Expired - Lifetime EP0301151B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AT87810436T ATE66833T1 (en) 1987-07-31 1987-07-31 DEVICE FOR HOMOGENIZING A LIQUID MIXTURE.
ES198787810436T ES2025697T3 (en) 1987-07-31 1987-07-31 DEVICE FOR HOMOGENIZING A LIQUID MIXTURE.
DE8787810436T DE3772767D1 (en) 1987-07-31 1987-07-31 DEVICE FOR HOMOGENIZING A LIQUID MIXTURE.
EP87810436A EP0301151B1 (en) 1987-07-31 1987-07-31 Device for homogenizing a fluid mixture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP87810436A EP0301151B1 (en) 1987-07-31 1987-07-31 Device for homogenizing a fluid mixture

Publications (2)

Publication Number Publication Date
EP0301151A1 EP0301151A1 (en) 1989-02-01
EP0301151B1 true EP0301151B1 (en) 1991-09-04

Family

ID=8198413

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87810436A Expired - Lifetime EP0301151B1 (en) 1987-07-31 1987-07-31 Device for homogenizing a fluid mixture

Country Status (4)

Country Link
EP (1) EP0301151B1 (en)
AT (1) ATE66833T1 (en)
DE (1) DE3772767D1 (en)
ES (1) ES2025697T3 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107998949A (en) * 2017-12-28 2018-05-08 赣州汇桔科技有限公司 A kind of flocculant for sewage treatment solution preparation equipment
CN114622466B (en) * 2022-03-28 2024-03-15 山西路桥第一工程有限公司 Lime marking off car with automatic material conveying function for roadbed construction

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3524598A (en) * 1965-07-23 1970-08-18 Ts Lab Kopalnych Surowcow Chem Crusher
DE2452548A1 (en) * 1973-11-19 1975-05-22 Sneek Landustrie CENTRIFUGAL PUMP
DK133269C (en) * 1974-03-26 1976-09-20 Rotostat Is MIXING UNIT FOR MIXING AND PROCESSING OF LIQUID MATERIALS
GB1483754A (en) * 1974-04-03 1977-08-24 Silverson Mach Ltd Mixing devices
CA1045101A (en) * 1977-03-23 1978-12-26 William A. Quansah Centrifugal pulverizer having intermeshing notched blading and annular vanes
CH663551A5 (en) * 1984-03-23 1987-12-31 Kinematica Gmbh Device for continuous kinematic high-frequency treatment of a material or mixture of materials

Also Published As

Publication number Publication date
DE3772767D1 (en) 1991-10-10
EP0301151A1 (en) 1989-02-01
ES2025697T3 (en) 1992-04-01
ATE66833T1 (en) 1991-09-15

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