EP0036067A2 - Apparatus for mixing and homogenizing at least two materials - Google Patents

Apparatus for mixing and homogenizing at least two materials Download PDF

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Publication number
EP0036067A2
EP0036067A2 EP81100413A EP81100413A EP0036067A2 EP 0036067 A2 EP0036067 A2 EP 0036067A2 EP 81100413 A EP81100413 A EP 81100413A EP 81100413 A EP81100413 A EP 81100413A EP 0036067 A2 EP0036067 A2 EP 0036067A2
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EP
European Patent Office
Prior art keywords
boiler
homogenizer
operating position
control
control surface
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Granted
Application number
EP81100413A
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German (de)
French (fr)
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EP0036067B1 (en
EP0036067A3 (en
Inventor
Heinz Meyer
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Haagen & Rinau
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Haagen & Rinau
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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
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/81—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis the stirrers having central axial inflow and substantially radial outflow
    • B01F27/811—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis the stirrers having central axial inflow and substantially radial outflow with the inflow from one side only, e.g. stirrers placed on the bottom of the receptacle, or used as a bottom discharge pump

Definitions

  • the invention relates to a device for mixing and homogenizing at least two media, with a boiler, on the bottom of which a homogenizer having a rotor which can be rotated about an axis and a stator is arranged, the device being in a first operating position in which the mixture located in the boiler in inline operation from the boiler through the homogenizer to the lower boiler section, at least to switch to a second operating position in which the mix in the boiler circulates out of the boiler the homogenizer must be returned to the upper section of the boiler or drained via a bypass line.
  • the homogenizer is preferably installed in the center of the bottom of the mixing or stirring vessel referred to as the kettle, the homogenizer - i.e. the rotor rotatable about the longitudinal axis by means of a drive and the stator fixed relative to the axis of rotation - for homogenizing the Mixed material in in-line operation is raised so far by means of a suitable adjustment device that the homogenizer protrudes so far inward beyond the actual boiler bottom that the stator outlet openings above the boiler bottom are free.
  • the homogenizer at ' is lowered the known apparatus by means of the setting means that its outlet openings - more precisely, the outlet openings of the stator - so far below the bottom of the boiler that they are connected to the bypass line, so that the mix or the like, depending on the selected setting of a valve arranged in the bypass line. can either be returned to the boiler via the pumping section of the bypass line or can be drained from the device.
  • the effort to be made for an axial adjustment of the entire homogenizer requires considerable effort, especially since relatively large adjustment devices with corresponding adjustment forces are required for the adjustment, because they are moved from the second to the second First operating position not only move the mass of the homogenizer and the drive connected to it, i.e. including the motor, but also have to counteract the pressure in the boiler that acts on the homogenizer.
  • this adjusting force must be constantly maintained in the first operating position, so that, for example, the corresponding hydraulic unit must be constantly switched on during operation in the first operating position during hydraulic operation.
  • the present invention has for its object to improve the known device of the type described above while avoiding its disadvantages so that while reducing the overall height of the effort to be adjusted from the first to the second operating position due to smaller masses to be adjusted and in particular smaller counterpressure forces or due to the compressive forces supporting the seal, while at the same time avoiding dead spaces within the boiler.
  • a control ring which is axially adjustable by means of an adjusting means relative to the homogenizer and is designed in the manner of a slide, is arranged radially outward of the homogenizer, which in a first operating position has a first annular control surface and a first housing surface parallel to it releases from the homogenizer into the boiler first channel, while it lies sealingly with a second annular control surface on a parallel to this second housing surface, and in a second operating position with its first control surface sealingly against the first housing surface and between its second control surface and the second housing surface forms a second channel into which the bypass line opens.
  • the homogenizer is preferably arranged stationary in the axial direction, namely below the bottom of the boiler, which is accordingly provided with a central feed opening opening into the rotor of the homogenizer.
  • adjustable control ring is preferably cylindrical on its radial outside and guided in a cylindrical section of the housing, the control surfaces of the control ring preferably running obliquely to the vertical, namely the first control surface expediently from a central section of its inside to the outside or to its top, and the second control surface opposite to this.
  • control ring between the first operating position and the second operating position can be releasably locked in a third operating position.
  • FIG. 1 shows, in a simplified partial representation, a central vertical section through a stirring device 1 according to the invention, that is to say a device for mixing and homogenizing at least two media, which has a kettle 2, of which only the lower section is shown in FIG.
  • the top is provided with a cover, not shown, on which various units, such as the agitator, etc., are arranged.
  • a homogenizer generally designated 4, which has a rotor 7 rotatable about the vertical axis 6 by means of a drive (not shown) and a stator 8 arranged in a rotationally fixed manner.
  • the homogenizer is in the axial direction, i.e. So arranged in the direction of the vertical axis 6, stationary.
  • a control ring 11 (Fig. 2/3) which is axially adjustable relative to the homogenizer 4 in the direction of the double arrow 9 (FIG. 3) is arranged by means of an adjusting means, not shown, such as a small hydraulic cylinder, which is designed in the manner of a slide.
  • the control ring 11 is cylindrical on its radial outside 12 and axially guided in a housing section 13 with a cylindrical inside.
  • the radially inner side of the control ring 11 has an approximately central cylindrical section 14, from which a first control surface 16 extends obliquely to the vertical towards its upper side 17.
  • a second control surface 18 of the control ring 11 runs from its cylindrical, central section 14 in the opposite direction to the first control surface 16, that is, obliquely to the vertical downward towards a cylindrical lower section 14 'of the control ring.
  • the boiler bottom 3 has an opening 19 in its center, the diameter of which on the side facing the rotor 7 corresponds to the inside diameter of the rotor 7, and which widens conically on the side facing the boiler 2 by an unrestricted intake area for to create the goods to be homogenized in the homogenizer 4.
  • the boiler bottom 3 has an inclined annular surface 21, referred to above and below as the first housing surface, which runs parallel to the first control surface 16 of the control ring 11.
  • a corresponding second housing surface 22 assigned to the second control surface 18 of the control ring 11 is arranged on the upper edge of a housing part 23 shown in block form and therefore runs parallel to the second control surface 18.
  • the outside of the upper section of the housing part 23 is at a distance a from the inside 14 'of the lower section of the control ring 11 and thus creates an annular channel 24 into which a bypass line 26 opens, which is shown in FIG. 1 only with its mouth section and thence leads past the outside of the boiler into the upper section of the boiler.
  • the control ring 11 is in the first operating position, in which its first control surface 16 and the first housing surface 21 parallel thereto are one from the homogenizer 4 or its stator 8 into the boiler 2 leading or opening annular first channel 27, while the control ring 1.1 with its second control surface 18 sealingly abuts the second housing surface 22.
  • the pressure exerted on the top 17 and the obliquely running first control surface 16 of the control ring 11 acts in a sealing manner with respect to the surfaces 18 and 22 which abut one another and thus contributes to closing the bypass line 26, so that the device is in the first operating position 1 works in inline operation, the mixture therefore circulating according to the arrows 28 from the boiler 2 through the homogenizer 4 back into the boiler 2.
  • FIG. 2 shows the stirring device 1 in the second operating position, with a smaller cut-out sufficient for this than the illustration according to FIG. 1 being chosen.
  • the first control surface 16 of the control ring 11 and the first housing surface 21 of the boiler bottom 3 abut one another, while the second control surface 18 of the control ring 11 and the second housing surface 22 are spaced apart from one another to create a second annular channel 29, whereby the bypass line 26 opens into the second channel 29, so that the mix in the direction of arrows 30 from the boiler through the rotor 7 and the stator 8 of the homogenizer enters the second channel 29 and from there into the bypass line 26 , by means of which the material to be mixed is either returned to the upper section of the boiler in what is known as circulation operation, or, if a valve, tap or the like, which is not shown, is arranged in the bypass line and is switched accordingly. can be drained from the device 1.
  • FIG. 3 of the drawing shows a representation according to FIG. 2, in which the control ring 11 is in a middle third operating position lying between the first operating position (FIG. 1) and the second operating position (FIG. 2), so that the mix can return from the boiler through the homogenizer 4 'both in throttled inline operation according to the arrows 28 into the boiler 2 and, due to the prevailing negative pressure in the boiler 2, additional products can be sucked in according to the arrows 30, Fig. 3.
  • the overpressure usually present in the boiler 2 also has a favorable effect on the respective operation in the second and third operating positions. Because in the second operating position (FIG. 2), the surface of the control ring 11 which is acted upon by the pressure, that is to say its second control surface 18 and its underside 25, is larger than its upper side 17, so that a resulting pressure in the sealing direction also results in this operating position .

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Accessories For Mixers (AREA)

Abstract

1. A device for mixing and homogenizing at least two media, comprising a boiler (2) on whose end plate (3) a homogenizer (4=7,8) comprising a stator (8) and a rotor (7) rotatable around a shaft is disposed, the stator having a top inlet part and a bottom end part, the device being movable from a first operative position, in which the mixed material in the boiler can be conveyed in in-line operation from the boiler through the homogenizer to the bottom boiler portion, into at least one second operative position, in which the mixed material in the boiler can be conveyed in circulating operation from the boiler through the homogenizer via a by-pass line (26) back to the top boiler portion or discharged, characterized in that the homogenizer (4=7,8) is stationary in the axial direction and disposed below the boiler end plate, and a control ring (11) axially adjustable relative to the homogenizer (4) by an adjusting means is disposed radially outwards of the homogenizer (4=7,8) and, in a first operative position (fig.1), opens a first duct (27), disposed between a first annular control surface (16) and a parallel first surface (21) of the inlet part, and extending from the homogenizer (4) to the boiler (2) and, by way of a second annular control surface (18), engages sealingly with a second surface (22), parallel to the second annular control surface (18), of the closure member (23), and in a second operative position (fig.2) the control rings (11) engages sealingly with the surface (21) of the inlet member, by way of its first control surface (16), and bounds between its second control surface (18) and the second surface (22) of the closure member (23) a second duct (29) into which the by-pass line (26) extends.

Description

Die Erfindung betrifft eine Vorrichtung zum Mischen und Homogenisieren wenigstens zweier Medien, mit einem Kessel, an dessen Boden ein einen um eine Achse drehbaren Rotor und einen Stator aufweisender Homogenisator angeordnet ist, wobei die Vorrichtung aus einer ersten Betriebsstellung, in der das im Kessel befindliche Mischgut im Inline-Betrieb aus dem Kessel durch den Homogenisator in den unteren Kesselabschnitt zurückzuführen ist, wenigstens in eine zweite Betriebsstellung umzuschalten ist, in der das im Kessel befindliche Mischgut im Umlaufbetrieb aus dem Kessel durch den Homogenisator über eine Bypass-Leitung in den oberen Kesselabschnitt zurückzuführen bzw. zu entleeren ist.The invention relates to a device for mixing and homogenizing at least two media, with a boiler, on the bottom of which a homogenizer having a rotor which can be rotated about an axis and a stator is arranged, the device being in a first operating position in which the mixture located in the boiler in inline operation from the boiler through the homogenizer to the lower boiler section, at least to switch to a second operating position in which the mix in the boiler circulates out of the boiler the homogenizer must be returned to the upper section of the boiler or drained via a bypass line.

Um das im Kessel befindliche Mischgut dem Homogenisator auf kürzestem Wege und ohne Drosselung zuführen zu können, . wird bei bekannten Rührmaschinen der vorstehend beschriebenen Gattung der Homogenisator vorzugsweise mittig am Boden des als Kessel bezeichneten Misch- bzw. Rührbehälters eingebaut, wobei der Homogenisator - also der um die Längsachse mittels eines Antriebes drehbare Rotor sowie der relativ zur Drehachse feststehende Stator - zum Homogenisieren des Mischgutes im Inline-Betrieb mittels einer geeigneten Verstelleinrichtung so weit angehoben wird, daß der Homogenisator so weit nach innen über den eigentlichen Kesselboden vorsteht, daß die Austrittsöffnungen des Stators oberhalb des Kesselbodens frei sind.In order to be able to feed the mixed material in the boiler to the homogenizer in the shortest possible way and without throttling. In known mixing machines of the type described above, the homogenizer is preferably installed in the center of the bottom of the mixing or stirring vessel referred to as the kettle, the homogenizer - i.e. the rotor rotatable about the longitudinal axis by means of a drive and the stator fixed relative to the axis of rotation - for homogenizing the Mixed material in in-line operation is raised so far by means of a suitable adjustment device that the homogenizer protrudes so far inward beyond the actual boiler bottom that the stator outlet openings above the boiler bottom are free.

Soll dagegen im Umlauf-Betrieb homogenisiert werden, oder soll das fertig gemischte und homogenisierte Gut aus dem Kessel entleert werden, so wird der Homogenisator bei' der bekannten Vorrichtung mittels der Einstelleinrichtung so weit abgesenkt, daß seine Austrittsöffnungen - genauer gesagt die Austrittsöffnungen des Stators - so weit unterhalb des Kesselbodens liegen, daß sie mit der Bypass-Leitung verbunden sind, so daß das Mischgut je nach gewählter Einstellung eines in der Bypass-Leitung angeordneten Ventils o.dgl. entweder über den Umpumpabschnitt der Bypass-Leitung in den Kessel zurückgeführt werden oder aber aus der Vorrichtung abgelassen werden kann.If, however operating recirculating be homogenized in, or to the ready-mixed and homogenized Good be emptied from the kettle, the homogenizer at 'is lowered the known apparatus by means of the setting means that its outlet openings - more precisely, the outlet openings of the stator - so far below the bottom of the boiler that they are connected to the bypass line, so that the mix or the like, depending on the selected setting of a valve arranged in the bypass line. can either be returned to the boiler via the pumping section of the bypass line or can be drained from the device.

Bei dieser bekannten Vorrichtung ist es zunächst einmal nachteilig, daß die erforderliche Konstruktion für den vorstehend beschriebenen Betrieb eine große Bauhöhe erfordert, die in zahlreichen Fällen außerordentlich unerwünscht ist und in aller Regel nicht,unbeachtliche Mehrkosten zur Folge hat..In this known device, it is disadvantageous that the construction required for the Operation described above requires a large height, which is extremely undesirable in many cases and usually does not result in inconsiderable additional costs.

Außerdem bedingt der zu treibende Aufwand für eine axiale Verstellung des gesamten Homogenisators einschließlich der in jeder Betriebsstellung erforderlichen Dichtigkeit etc. einen nicht unbeträchtlichen Aufwand, zumal für die Verstellung verhältnismäßig große Verstelleinrichtungen mit entsprechenden Verstellkräften erforderlich sind, weil sie bei einer Verstellung aus der zweiten in die erste Betriebsstellung nicht nur die Masse des Homogenisators und des mit diesem verbundenen Antriebes, also einschließlich des Motors, bewegen, sondern außerdem dem im Kessel vorhandenen Druck entgegenwirken müssen, der den Homogenisator beaufschlagt. Dabei kommt hinzu, daß diese Verstellkraft in der ersten Betriebsstellung ständig aufrecht erhalten werden muß, so daß beispielsweise bei einer hydraulischen Betätigung das entsprechende Hydraulikaggregat während des Betriebes in der ersten Betriebsstellung ständig eingeschaltet sein muß.In addition, the effort to be made for an axial adjustment of the entire homogenizer, including the tightness required in every operating position, requires considerable effort, especially since relatively large adjustment devices with corresponding adjustment forces are required for the adjustment, because they are moved from the second to the second First operating position not only move the mass of the homogenizer and the drive connected to it, i.e. including the motor, but also have to counteract the pressure in the boiler that acts on the homogenizer. In addition, this adjusting force must be constantly maintained in the first operating position, so that, for example, the corresponding hydraulic unit must be constantly switched on during operation in the first operating position during hydraulic operation.

Es kommt weiterhin hinzu, daß in der ersten Betriebsstellung, d.h. also bei nach oben bzw. in den Kessel ausgefahrenem Homogenisator benachbart zu dessen Stator gewisse Toträume entstehen, die für den Misch- und Homogenisierbetrieb nachteilig sind, wobei im übrigen ersichtlich ist, daß ein üblicherweise im Inneren des Kessels angebrachter Abstreifer, der das Mischgut ständig von der Wandung und vom Boden abstreift und in den Rührbereich zurückführt, bei der bekannten Vorrichtung nur so weit zur Mitte geführt werden kann, daß er bei ausgefahrenem Homogenisator nicht mit diesem kollidiert.In addition, in the first operating position, i.e. So when the homogenizer is extended upwards or into the boiler, there are certain dead spaces adjacent to its stator, which are disadvantageous for the mixing and homogenizing operation, whereby it can also be seen that a scraper which is usually fitted inside the boiler and which constantly removes the mix scrapes the wall and from the bottom and leads back into the stirring area, in the known device can only be guided so far to the center that it does not collide with the homogenizer when it is extended.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, die bekannte Vorrichtung der eingangs beschriebenen Gattung unter Vermeidung ihrer Nachteile so zu verbessern, daß unter gleichzeitiger Verminderung der Bauhöhe der für die Verstellung von der ersten in die zweite Betriebsstellung zu treibende Aufwand aufgrund kleinerer zu verstellender Massen und insbesondere kleinerer Gegendruckkräfte bzw. aufgrund von die Abdichtung jeweils unterstützenden Druckkräften zu vermindern ist, wobei zugleich Toträume innerhalb des Kessels vermieden werden sollen.The present invention has for its object to improve the known device of the type described above while avoiding its disadvantages so that while reducing the overall height of the effort to be adjusted from the first to the second operating position due to smaller masses to be adjusted and in particular smaller counterpressure forces or due to the compressive forces supporting the seal, while at the same time avoiding dead spaces within the boiler.

Als Lösung dieser Aufgabe ist erfindungsgemäß vorgesehen, daß radial auswärts zum Homogenisator ein mittels eines Einstellmittels relativ zum Homogenisator axial einstellbarer, in der Art eines Schiebers ausgebildeter Steuerring angeordnet ist, der in einer ersten Betriebsstellung zwischen einer ersten ringförmigen Steuerfläche und einer hierzu parallelen ersten Gehäusefläche einen vom Homogenisator in den Kessel führenden ersten Kanal freigibt, während er mit einer zweiten ringförmigen Steuerfläche an einer zu dieser parallelen zweiten Gehäusefläche dichtend anliegt, und der in einer zweiten Betriebsstellung mit seiner ersten Steuerfläche an der ersten Gehäusefläche dichtend anliegt und zwischen seiner zweiten Steuerfläche und der zweiten Gehäusefläche einen zweiten Kanal bildet, in welchen die Bypass-Leitung mündet.As a solution to this problem, it is provided according to the invention that a control ring, which is axially adjustable by means of an adjusting means relative to the homogenizer and is designed in the manner of a slide, is arranged radially outward of the homogenizer, which in a first operating position has a first annular control surface and a first housing surface parallel to it releases from the homogenizer into the boiler first channel, while it lies sealingly with a second annular control surface on a parallel to this second housing surface, and in a second operating position with its first control surface sealingly against the first housing surface and between its second control surface and the second housing surface forms a second channel into which the bypass line opens.

Dabei ist der Homogenisator vorzugsweise in Axialrichtung stationär angeordnet, und zwar unterhalb des Kesselbodens, welcher dementsprechend mit einer in den Rotor des Homogenisators mündenden zentrischen Einzugsöffnung versehen ist.The homogenizer is preferably arranged stationary in the axial direction, namely below the bottom of the boiler, which is accordingly provided with a central feed opening opening into the rotor of the homogenizer.

Der mit einem Einstellhebel, einem kleinen Hydraulikzylinder o.dgl. verstellbare Steuerring ist bevorzugt an seiner radialen Außenseite zylindrisch ausgebildet und in einem zylindrischen Abschnitt des Gehäuses geführt, wobei die Steuerflächen des Steuerrings bevorzugt schräg zur Vertikalen verlaufen, nämlich die erste Steuerfläche zweckmäßigerweise von einem mittleren Abschnitt seiner Innenseite aus nach außen bzw. zu seiner Oberseite, und die zweite Steuerfläche hierzu entgegengesetzt.The one with an adjusting lever, a small hydraulic cylinder or the like. adjustable control ring is preferably cylindrical on its radial outside and guided in a cylindrical section of the housing, the control surfaces of the control ring preferably running obliquely to the vertical, namely the first control surface expediently from a central section of its inside to the outside or to its top, and the second control surface opposite to this.

Um auch mit der erfindungsgemäßen Vorrichtung sämtliche Betriebsarten fahren zu können, die bei Bedarf gewünscht werden, ist bevorzugt vorgesehen,daß der Steuerring zwischen der ersten Betriebsstellung und der zweiten Betriebsstellung in einer dritten Betriebsstellung lösbar zu arretieren ist.In order to be able to drive all the operating modes that are desired when required, it is preferably provided that the control ring between the first operating position and the second operating position can be releasably locked in a third operating position.

Bevorzugte Ausgestaltungen der vorliegenden Erfindung sind in den Unteransprüchen beschrieben.Preferred embodiments of the present invention are described in the subclaims.

Die Erfindung ist nachstehend an einem Ausführungsbeispiel unter Bezugnahme auf eine Zeichnung weiter erläutert.The invention is explained below using an exemplary embodiment with reference to a drawing.

Es zeigt:

  • Fig. 1 einen Teil-Vertikalschnitt durch eine vereinfachte dargestellte erfindungsgemäße Rührvorrichtung in der ersten Betriebsstellung;
  • Fig. 2 einen Ausschnitt der Darstellung gemäß Fig. 1, wobei sich die Vorrichtung in der zweiten Betriebsstellung befindet; und
  • Fig. 3 eine Fig. 2 entsprechende Darstellung in der dritten Betriebsstellung.
It shows:
  • Figure 1 is a partial vertical section through a simplified illustrated inventive stirring device in the first operating position.
  • FIG. 2 shows a detail of the illustration according to FIG. 1, the device being in the second operating position; and
  • Fig. 3 is a Fig. 2 corresponding representation in the third operating position.

Fig. 1 zeigt in vereinfachter Teildarstellung einen mittigen Vertikalschnitt durch eine erfindungsgemäße Rührvorrichtung 1, also eine Vorrichtung zum Mischen und Homogenisieren wenigstens zweier Medien, die einen Kessel 2 aufweist, von dem in Fig. 1 nur der untere Abschnitt dargestellt ist und der an seiner-Oberseite mit einem nicht dargestellten Deckel versehen ist, an dem diverse Aggregate, wie das Rührwerk etc., angeordnet sind. Unterhalb des Kesselbodens 3 befindet sich ein im ganzen mit 4 bezeichneter Homogenisator, der einen um die Vertikalachse 6 mittels eines nicht dargestellten Antriebes drehbaren Rotor 7 sowie einen drehfest angeordneten Stator 8 aufweist. Der Homogenisator ist in Axialrichtung, d.h. also in Richtung der Vertikalachse 6, ortsfest angeordnet.1 shows, in a simplified partial representation, a central vertical section through a stirring device 1 according to the invention, that is to say a device for mixing and homogenizing at least two media, which has a kettle 2, of which only the lower section is shown in FIG. The top is provided with a cover, not shown, on which various units, such as the agitator, etc., are arranged. Below the boiler base 3 there is a homogenizer, generally designated 4, which has a rotor 7 rotatable about the vertical axis 6 by means of a drive (not shown) and a stator 8 arranged in a rotationally fixed manner. The homogenizer is in the axial direction, i.e. So arranged in the direction of the vertical axis 6, stationary.

Radial auswärts zum Homogenisator 4 bzw. 7, 8 ist ein mittels eines nicht dargestellten Einstellmittels wie beispielsweise eines kleinen Hydraulikzylinders relativ zum Homogenisator 4 in Richtung des Doppelpfeils 9 (Fig. 3) axial einstellbarer Steuerring 11 (Fig. 2/3) angeordnet, der in der Art eines Schiebers ausgebildet ist. Der Steuerring 11 ist an seiner radialen Außenseite 12 zylindrisch ausgebildet und in einem Gehäuseabschnitt 13 mit zylindrischer Innenseite axial geführt.Radially outward to the homogenizer 4 or 7, 8, a control ring 11 (Fig. 2/3) which is axially adjustable relative to the homogenizer 4 in the direction of the double arrow 9 (FIG. 3) is arranged by means of an adjusting means, not shown, such as a small hydraulic cylinder, which is designed in the manner of a slide. The control ring 11 is cylindrical on its radial outside 12 and axially guided in a housing section 13 with a cylindrical inside.

Die radial innenliegende Seite des Steuerrings 11 besitzt einen etwa mittig liegenden, zylindrischen Abschnitt 14, von dem aus sich eine erste Steuerfläche 16 schräg zur Vertikalen zu seiner Oberseite 17 hin erstreckt.The radially inner side of the control ring 11 has an approximately central cylindrical section 14, from which a first control surface 16 extends obliquely to the vertical towards its upper side 17.

Eine zweite Steuerfläche 18 des Steuerrings 11 verläuft von dessen zylindrischem, mittigem Abschnitt 14 in entgegengesetzter Richtung wie die erste Steuerfläche 16, d.h. also schräg zur Vertikalen nach unten zu einem zylindrischen unteren Abschnitt 14' des Steuerrings hin.A second control surface 18 of the control ring 11 runs from its cylindrical, central section 14 in the opposite direction to the first control surface 16, that is, obliquely to the vertical downward towards a cylindrical lower section 14 'of the control ring.

Der Kesselboden 3 weist in seiner Mitte eine öffnung 19 auf, deren Durchmesser an der'dem Rotor 7 zugekehrten Seite dem lichten Durchmesser des Rotors 7 entspricht, und die sich an der dem Kessel 2 zugekehrten Seite konisch erweitert, um einen möglichst nicht gedrosselten Einzugsbereich für das zu homogenisierende Gut in den Homogenisator 4 zu schaffen.The boiler bottom 3 has an opening 19 in its center, the diameter of which on the side facing the rotor 7 corresponds to the inside diameter of the rotor 7, and which widens conically on the side facing the boiler 2 by an unrestricted intake area for to create the goods to be homogenized in the homogenizer 4.

An seinem äußeren Rand besitzt der Kesselboden 3 eine vor- und nachstehend als erste Gehäusefläche bezeichnete schräge Ringfläche 21, die parallel zu der ersten Steuerfläche 16 des Steuerrings 11 verläuft.At its outer edge, the boiler bottom 3 has an inclined annular surface 21, referred to above and below as the first housing surface, which runs parallel to the first control surface 16 of the control ring 11.

Eine der zweiten Steuerfläche 18 des Steuerrings 11 zugeordnete, entsprechende zweite Gehäusefläche 22 ist am oberen Rand eines blockartig dargestellten Gehäuseteils 23 angeordnet und verläuft mithin parallel zu der zweiten Steuerfläche 18.A corresponding second housing surface 22 assigned to the second control surface 18 of the control ring 11 is arranged on the upper edge of a housing part 23 shown in block form and therefore runs parallel to the second control surface 18.

Die Außenseite des oberen Abschnittes des Gehäuseteils 23 steht im Abstand a zur Innenseite 14' des unteren Abschnittes des Steuerrings 11 und schafft mithin einen Ringkanal 24, in den eine Bypass-Leitung 26 mündet, die in Fig. 1 nur mit ihrem Mündungsabschnitt dargestellt ist und von dort an der Außenseite des Kessels vorbei in den oberen Kesselabschnitt führt.The outside of the upper section of the housing part 23 is at a distance a from the inside 14 'of the lower section of the control ring 11 and thus creates an annular channel 24 into which a bypass line 26 opens, which is shown in FIG. 1 only with its mouth section and thence leads past the outside of the boiler into the upper section of the boiler.

In Fig. 1 befindet sich der Steuerring 11 in der ersten Betriebsstellung, in der mithin seine erste Steuerfläche 16 und die hierzu parallele erste Gehäusefläche 21 einen vom Homogenisator 4 bzw. dessen Stator 8 in den Kessel 2 führenden, ringförmigen ersten Kanal 27 freigibt bzw. bildet, während der Steuerring 1.1 mit seiner zweiten Steuerfläche 18 dichtend.an der zweiten Gehäusefläche 22 anliegt. Dabei wirkt der auf die Oberseite 17 und die schräg verlaufende erste Steuerfläche 16 des Steuerringes 11 ausgeübte Druck bezüglich der aneinander anliegenden Flächen 18 und 22 dichtend und trägt mithin dazu bei, die Bypass-Leitung 26 zu schließen, so daß die Vorrichtung in der ersten Betriebsstellung gemäß Fig. 1 im Inline-Betrieb arbeitet, wobei das Mischgut mithin gemäß den Pfeilen 28 aus dem Kessel 2 durch den Homogenisator 4 zurück in den Kessel 2 umläuft.1, the control ring 11 is in the first operating position, in which its first control surface 16 and the first housing surface 21 parallel thereto are one from the homogenizer 4 or its stator 8 into the boiler 2 leading or opening annular first channel 27, while the control ring 1.1 with its second control surface 18 sealingly abuts the second housing surface 22. The pressure exerted on the top 17 and the obliquely running first control surface 16 of the control ring 11 acts in a sealing manner with respect to the surfaces 18 and 22 which abut one another and thus contributes to closing the bypass line 26, so that the device is in the first operating position 1 works in inline operation, the mixture therefore circulating according to the arrows 28 from the boiler 2 through the homogenizer 4 back into the boiler 2.

Fig. 2 zeigt die Rührvorrichtung 1 in der zweiten Betriebsstellung, wobei gegenüber der Darstellung gemäß Fig. 1 ein hierfür ausreichender, kleinerer Ausschnitt gewählt worden ist. In der zweiten Betriebsstellung liegen mithin die erste Steuerfläche 16 des Steuerrings 11 und die erste Gehäusefläche 21 des Kesselsbodens 3 aneinander an, während die zweite Steuerfläche 18 des Steuerrings 11 und die zweite Gehäusefläche 22 unter Schaffung eines zweiten ringförmigen Kanals 29 mit Abstand zueinander stehen, wobei die Bypass-Leitung 26 in den zweiten Kanal 29 mündet, so daß das Mischgut in Richtung der Pfeile 30 aus dem Kessel durch den Rotor 7 und den Stator 8 des Homogenisators in den zweiten Kanal 29 eintritt und von dort in die Bypass-Leitung 26 gelangt, mittels welcher das Mischgut entweder im sog. Umlaufbetrieb in den oberen Abschnitt des Kessels zurückgeführt werden oder aber bei entsprechender Umschaltung eines in der Bypass-Leitung angeordneten, nicht dargestellten Ventils, Hahns o.dgl. aus der Vorrichtung 1 abgelassen werden kann.FIG. 2 shows the stirring device 1 in the second operating position, with a smaller cut-out sufficient for this than the illustration according to FIG. 1 being chosen. In the second operating position, therefore, the first control surface 16 of the control ring 11 and the first housing surface 21 of the boiler bottom 3 abut one another, while the second control surface 18 of the control ring 11 and the second housing surface 22 are spaced apart from one another to create a second annular channel 29, whereby the bypass line 26 opens into the second channel 29, so that the mix in the direction of arrows 30 from the boiler through the rotor 7 and the stator 8 of the homogenizer enters the second channel 29 and from there into the bypass line 26 , by means of which the material to be mixed is either returned to the upper section of the boiler in what is known as circulation operation, or, if a valve, tap or the like, which is not shown, is arranged in the bypass line and is switched accordingly. can be drained from the device 1.

Fig. 3 der Zeichnung zeigt eine Darstellung gemäß Fig. 2, in welcher sich der Steuerring 11 in einer zwischen der ersten Betriebsstellung (Fig. 1) und der zweiten Betriebsstellung (Fig. 2) liegenden, mittleren dritten Betriebsstellung befindet, so daß das Mischgut aus dem Kessel durch den Homogenisator 4'sowohl im gedrosselten Inline-Betrieb gemäß den Pfeilen 28 in den Kessel 2 zurückgelangen kann als auch, infolge des herrschenden Unterdruckes im Kessel 2, Zusatzprodukte gemäß den Pfeilen 30, Fig. 3, eingesaugt werden können.FIG. 3 of the drawing shows a representation according to FIG. 2, in which the control ring 11 is in a middle third operating position lying between the first operating position (FIG. 1) and the second operating position (FIG. 2), so that the mix can return from the boiler through the homogenizer 4 'both in throttled inline operation according to the arrows 28 into the boiler 2 and, due to the prevailing negative pressure in the boiler 2, additional products can be sucked in according to the arrows 30, Fig. 3.

Es sei noch darauf verwiesen, daß sich auch in der zweiten und dritten Betriebsstellung der im Kessel 2 üblicherweise vorhandene Überdruck günstig auf den jeweiligen Betrieb auswirkt. Denn in der zweiten Betriebsstellung (Fig. 2) ist die von dem Druck beaufschlagte Fläche des Steuerrings 11, also seine zweite Steuerfläche 18 und seine Unterseite 25, größer als seine Oberseite 17, so daß sich auch in dieser Betriebsstellung ein resultierender Druck im Dichtsinne ergibt.It should also be pointed out that the overpressure usually present in the boiler 2 also has a favorable effect on the respective operation in the second and third operating positions. Because in the second operating position (FIG. 2), the surface of the control ring 11 which is acted upon by the pressure, that is to say its second control surface 18 and its underside 25, is larger than its upper side 17, so that a resulting pressure in the sealing direction also results in this operating position .

In der dritten Betriebsstellung (Fig. 3) gleichen sich auf die Oberseite 17 und die erste Steuerfläche 16 einerseits bzw. die Unterseite 25 und die zweite Steuerfläche 18 wirkenden Drücke gegenseitig aus, so daß sich der Steuerring 11 in der dritten Betriebsstellung insoweit in einem drucklosen Zustand befindet.In the third operating position (FIG. 3), the pressures acting on the upper side 17 and the first control surface 16 on the one hand and the lower side 25 and the second control surface 18 equalize each other, so that the control ring 11 in the third operating position is in a pressureless state Condition.

Über die bereits geschilderten und sich ohne weiteres aus der Konstruktion und Betriebsweise der erfindungsgemäßen Rührvorrichtung ergebenen Vorteile hinaus ergibt sich mithin ersichtlich weiterhin die Möglichkeit einer - verglichen mit bekannten Vorrichtungen ähnlicher Art - beachtlich niedrigeren Bauhöhe, da es einer aufwendigen und großbauenden Verstelleinrichtung, die zur Verstellung des Homogenisators einschließlich des Antriebes und dessen Motor an der Unterseite der Vorrichtung anzubringen ist, nicht bedarf.In addition to the advantages already described and resulting from the design and mode of operation of the stirring device according to the invention, there is also the possibility of a considerably lower overall height compared to known devices of a similar type, since it is a complex and large-scale adjusting device for adjustment the homogenizer including the drive and its motor to be attached to the underside of the device is not required.

Aufgrund des Umstandes, daß zur Einstellung der verschiedenen Betriebsstellungen lediglich der.verglichen mit dem Homogenisator massenmäßig verhältnismäßig kleine Steuerring 11 zu bewegen ist, der zudem verglichen mit dem vorbekannten Stand der Technik noch druckentlastet bzw. mit einem Druck im Dichtsinne beaufschlagt ist, bedarf es für die Verstelleinrichtung ersichtlich eines erheblich geringeren Aufwandes.Because of the fact that only the control ring 11, which is relatively small compared to the homogenizer, has to be moved to set the various operating positions, which is also pressure-relieved or pressurized in the sealing sense compared to the known prior art, it is necessary for the adjustment device is clearly less expensive.

Außerdem ergibt sich aufgrund der stationären Anordnung des Homogenisators unterhalb des Kesselbodens der Vorteil, daß am Kesselboden in keiner Betriebsstellung irgendwelche Toträume entstehen, so daß auch der üblicherweise vorhandene Abstreifer bis zur Mitte geführt werden kann, was den Rühr-, Misch- und Homogenisierbetrieb mithin noch weiter verbessert.In addition, due to the stationary arrangement of the homogenizer below the bottom of the boiler, there is the advantage that there are no dead spaces on the bottom of the boiler in any operating position, so that the wiper that is usually present can also be guided to the center, which means that the stirring, mixing and homogenizing operation is still necessary further improved.

Claims (7)

1. Vorrichtung zum Mischen und Homogenisieren wenigstens zweier Medien, mit einem Kessel, an dessen Boden ein einen um eine Achse drehbaren Rotor und einen Stator aufweisender Homogenisator angeordnet ist, wobei die Vorrichtung aus einer ersten Betriebsstellung, in der das im Kessel befindliche Mischgut im Inline-Betrieb aus dem Kessel durch den Homogenisator in den unteren Kesselabschnitt zurückzuführen ist, wenigstens in eine zweite Betriebsstellung umzuschalten ist, in der das im Kessel befindliche Mischgut im Umlaufbetrieb aus dem Kessel durch den Homogenisator über eine Bypass-Leitung in den oberen Kesselabschnitt zurückzuführen bzw. zu entleeren ist, dadurch gekennzeichnet, daß radial auswärts zum Homogenisator (4 = 7, 8) ein mittels eines Einstellmittels relativ zum Homogenisator (4) axial einstellbarer Steuerring (11) angeordnet ist, der in einer ersten Betriebsstellung (Fig. 1) zwischen einer ersten ringförmigen Steuerfläche (16) und einer hierzu parallelen ersten Gehäusefläche (21) einen vom Homogenisator (4) in den Kessel (2) führenden ersten Kanal (27) freigibt,während er mit einer zweiten ringförmigen Steuerfläche (18) an einer zu dieser parallelen zweiten Gehäusefläche (22) dichtend anliegt, und der in einer zweiten Betriebsstellung (Fig. 2) mit seiner ersten Steuerfläche (16) an der ersten Gehäusefläche (21) dichtend anliegt und zwischen seiner zweiten Steuerfläche (18) und der zweiten Gehäusefläche (22) einen zweiten Kanal (29) bildet, in welchem die Bypass-Leitung `(26) mündet.1. A device for mixing and homogenizing at least two media, with a boiler, on the bottom of which a homogenizer having a rotor rotatable about an axis and a stator is arranged, the device being in a first operating position in which the mixture in the boiler is inline -Operating from the boiler through the homogenizer into the lower boiler section is to be switched at least to a second operating position in which the mixed material in the boiler is recirculated from the boiler through the homogenizer via a bypass line to the upper boiler section or To be emptied, characterized in that a control ring (11) axially adjustable by means of an adjusting means relative to the homogenizer (4) is arranged radially outward to the homogenizer (4 = 7, 8), which in a first operating position (Fig. 1) between a first annular control surface (16) and a first housing surface parallel thereto e (21) releases a first channel (27) leading from the homogenizer (4) into the boiler (2), while with a second annular control surface (18) lies sealingly against a second housing surface (22) parallel to this, and in a second operating position (Fig. 2) with its first control surface (16) sealingly abuts the first housing surface (21) and forms a second channel (29) between its second control surface (18) and the second housing surface (22), in which the bypass line `(26) opens. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Homogenisator (4) in Axialrichtung (6) stationär angeordnet ist.2. Device according to claim 1, characterized in that the homogenizer (4) is arranged stationary in the axial direction (6). 3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Homogenisator (4) unterhalb des Kesselbodens (3) angeordnet ist,und daß der Kesselboden (3) mit einer in den Rotor (7) des Homogenisators (4) mündenden zentrischen Öffnung (19) versehen ist.3. Apparatus according to claim 1 or 2, characterized in that the homogenizer (4) is arranged below the boiler bottom (3), and that the boiler bottom (3) with a in the rotor (7) of the homogenizer (4) opening central opening (19) is provided. 4. Vorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Steuerring (11) zwischen der ersten Betriebsstellung (Fig. 1) und der zweiten Betriebsstellung (Fig. 2) in einer dritten Betriebsstellung (Fig. 3) lösbar zu arretieren ist.4. Device according to one or more of the preceding claims, characterized in that the control ring (11) between the first operating position (Fig. 1) and the second operating position (Fig. 2) in a third operating position (Fig. 3) releasably lock is. 5. Vorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Steuerring (11) an seiner radialen Außenseite (12) zylindrisch ausgebildet ist und in einem zylindrischen Abschnitt (13) des Gehäuses geführt ist.5. The device according to one or more of the preceding claims, characterized in that the control ring (11) on its radial outer side (12) is cylindrical and is guided in a cylindrical portion (13) of the housing. 6. Vorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die erste Steuerfläche (16) des Steuerrings (11) schräg zur Vertikalen (6) zur Oberseite (17) des Steuerrings (11) hin nach außen verläuft.6. The device according to one or more of the preceding claims, characterized in that the first control surface (16) of the control ring (11) obliquely to the vertical (6) to the top (17) of the control ring (11) extends outwards. 7. Vorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, insbesondere nach Anspruch 6, dadurch gekennzeichnet, daß die zweite Steuerfläche (18) des Steuerrings (11) schräg zur Vertikalen (6) zur Unterseite (25) des Steuerrings (11) hin nach außen verläuft.7. The device according to one or more of the preceding claims, in particular according to claim 6, characterized in that the second control surface (18) of the control ring (11) obliquely to the vertical (6) to the underside (25) of the control ring (11) towards the outside runs.
EP81100413A 1980-03-14 1981-01-21 Apparatus for mixing and homogenizing at least two materials Expired EP0036067B1 (en)

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DE3009777A DE3009777C2 (en) 1980-03-14 1980-03-14 Device for mixing and homogenizing at least two media
DE3009777 1980-03-14

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3417242A1 (en) * 1984-05-10 1985-11-14 Haagen & Rinau Homogenising appliance
EP0182275A2 (en) * 1984-11-16 1986-05-28 Ditta Cipelletti Alberto Stirring and homogenizing device for alimentary mixtures
DE3519854C1 (en) * 1985-06-03 1987-02-05 Waldner Gmbh & Co Hermann Device for mixing and / or homogenizing a flowable material, in particular a cream
EP0471343A2 (en) * 1990-08-16 1992-02-19 Bosch-Siemens HausgerÀ¤te GmbH Storage vessel with an electric-driven circulating pump
EP0760254A1 (en) * 1995-08-29 1997-03-05 Vakumix Rühr- und Homogenisiertechnik Aktiengesellschaft Device for homogenising flowable materials
EP0801974A1 (en) * 1996-04-17 1997-10-22 Haagen & Rinau Mischtechnik GmbH Device for homogenizing and/or dispersing a flowable material
EP0896833A1 (en) * 1997-08-11 1999-02-17 A. BERENTS GMBH & CO. KG Device for homogenizing flowable materials
EP1121974A1 (en) 2000-01-31 2001-08-08 Dr. C. Ekkehard Stelzer Mixing method and apparatus
US6866411B1 (en) 2000-01-31 2005-03-15 Tetra Laval Holdings & Finance S.A. Mixing method and apparatus
US7325966B2 (en) 2003-05-09 2008-02-05 Ika-Werke Gmbh & Co. Kg Device for dispersion and/or homogenization
WO2009089837A1 (en) 2008-01-16 2009-07-23 Tetra Pak Scanima A/S Hybrid mixer
RU2509603C2 (en) * 2009-06-23 2014-03-20 ИПМС Инк. Mixing rotor and mixer

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DE1913940B1 (en) * 1969-03-19 1970-06-25 Haagen & Rinau Mixing device
DE2202185A1 (en) * 1972-01-15 1973-07-26 Wey Gino Dipl Ing PROCESS AND EQUIPMENT FOR MIXING SOLID AND LIQUID PARTICLES, PREFERABLY CEMENT WITH WATER
DE2717887A1 (en) * 1977-04-22 1978-10-26 Herfeld Friedrich W CIRCULAR MIXER
FR2387679A1 (en) * 1977-04-22 1978-11-17 Herfeld Friedrich CIRCULATION MIXER

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3417242A1 (en) * 1984-05-10 1985-11-14 Haagen & Rinau Homogenising appliance
EP0182275A2 (en) * 1984-11-16 1986-05-28 Ditta Cipelletti Alberto Stirring and homogenizing device for alimentary mixtures
EP0182275A3 (en) * 1984-11-16 1987-08-26 Ditta Cipelletti Alberto Stirring and homogenizing device for alimentary mixtures
DE3519854C1 (en) * 1985-06-03 1987-02-05 Waldner Gmbh & Co Hermann Device for mixing and / or homogenizing a flowable material, in particular a cream
EP0471343A2 (en) * 1990-08-16 1992-02-19 Bosch-Siemens HausgerÀ¤te GmbH Storage vessel with an electric-driven circulating pump
EP0471343A3 (en) * 1990-08-16 1992-06-17 Bosch-Siemens Hausgeraete Gmbh Patent- Und Vertragswesen Storage vessel with an electric-driven circulating pump
EP0760254A1 (en) * 1995-08-29 1997-03-05 Vakumix Rühr- und Homogenisiertechnik Aktiengesellschaft Device for homogenising flowable materials
EP0801974A1 (en) * 1996-04-17 1997-10-22 Haagen & Rinau Mischtechnik GmbH Device for homogenizing and/or dispersing a flowable material
EP0896833A1 (en) * 1997-08-11 1999-02-17 A. BERENTS GMBH & CO. KG Device for homogenizing flowable materials
EP1121974A1 (en) 2000-01-31 2001-08-08 Dr. C. Ekkehard Stelzer Mixing method and apparatus
WO2001056687A1 (en) * 2000-01-31 2001-08-09 Tetra Laval Holdings & Finance S.A. Mixing method and apparatus
US6866411B1 (en) 2000-01-31 2005-03-15 Tetra Laval Holdings & Finance S.A. Mixing method and apparatus
AT414101B (en) * 2000-01-31 2006-09-15 Stelzer C Ekkehard Dr METHOD AND DEVICE FOR MIXING FLUIDABLE SUBSTANCES
US7325966B2 (en) 2003-05-09 2008-02-05 Ika-Werke Gmbh & Co. Kg Device for dispersion and/or homogenization
WO2009089837A1 (en) 2008-01-16 2009-07-23 Tetra Pak Scanima A/S Hybrid mixer
RU2491984C2 (en) * 2008-01-16 2013-09-10 Тетра Лаваль Холдингз энд Финанс С.А. Combined mixer
US9050568B2 (en) 2008-01-16 2015-06-09 Tetra Laval Holdings & Finance S.A. Hybrid mixer
RU2509603C2 (en) * 2009-06-23 2014-03-20 ИПМС Инк. Mixing rotor and mixer

Also Published As

Publication number Publication date
DE3009777C2 (en) 1985-09-12
EP0036067B1 (en) 1983-11-23
EP0036067A3 (en) 1981-12-23
DE3009777A1 (en) 1981-09-24

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