EP0115018A2 - Centrifuge for the separation of solid-liquid mixtures - Google Patents

Centrifuge for the separation of solid-liquid mixtures Download PDF

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Publication number
EP0115018A2
EP0115018A2 EP83112794A EP83112794A EP0115018A2 EP 0115018 A2 EP0115018 A2 EP 0115018A2 EP 83112794 A EP83112794 A EP 83112794A EP 83112794 A EP83112794 A EP 83112794A EP 0115018 A2 EP0115018 A2 EP 0115018A2
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EP
European Patent Office
Prior art keywords
centrifuge
centrifuge according
control device
jacket
opening
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.)
Withdrawn
Application number
EP83112794A
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German (de)
French (fr)
Other versions
EP0115018A3 (en
Inventor
Georg Hiller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kloeckner Humboldt Deutz AG
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Kloeckner Humboldt Deutz AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE19792942451 external-priority patent/DE2942451A1/en
Priority claimed from DE19803036550 external-priority patent/DE3036550A1/en
Application filed by Kloeckner Humboldt Deutz AG filed Critical Kloeckner Humboldt Deutz AG
Publication of EP0115018A2 publication Critical patent/EP0115018A2/en
Publication of EP0115018A3 publication Critical patent/EP0115018A3/en
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
    • B04B1/10—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with discharging outlets in the plane of the maximum diameter of the bowl
    • B04B1/14—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with discharging outlets in the plane of the maximum diameter of the bowl with periodical discharge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
    • B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
    • B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
    • B04B2001/2041—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl with baffles, plates, vanes or discs attached to the conveying screw
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
    • B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
    • B04B2001/2066—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl with additional disc stacks

Definitions

  • the invention relates to a centrifuge for separating solid-liquid mixtures, in which at least one thickened solid phase is at least partially discharged through at least one opening arranged below the liquid level, plate packs also being provided to influence the flow direction of the heavy phase.
  • a control device for opening and closing an outlet opening in the casing of a centrifuge is known, the control device being arranged outside the drum or the casing.
  • the control device mentioned is very complicated and susceptible to failure.
  • a centrifuge with plate packs is known from FR-A-1359356, but this device also has a complicated and uncontrollable discharge system for the thickened solid phase.
  • the object of the invention is to present a centrifuge which is improved with respect to the opening and closing of the openings arranged in the jacket, i. H. that the thickened heavy phase is controlled by a control device in accordance with controlled operating parameters such that the thickened heavy phase can be released in a controlled amount and / or amount per unit of time.
  • the object of the invention is achieved in that the centrifuge has a control device arranged inside the jacket for opening and closing the openings.
  • control device is equipped with a drive. In this way it becomes easily manageable, i. H. adjustable and jerky accelerations can be avoided.
  • the control device advantageously has a width that at least partially covers the opening and is preferably designed as a disk. This is a particularly simple, i.e. Cost-effective design of the device with low susceptibility to faults.
  • the jacket is cylindrical. This measure makes it particularly advantageously possible to enlarge the discharge area for the heavy phase laden with solids and also to subtract any quantity of the thickened heavy phase.
  • a plurality of control devices and openings, in particular nozzles, are arranged distributed on the jacket. This results in an increased sensitivity of the discharge control.
  • the invention is also expediently designed in such a way that the nozzle-like openings are controlled independently of one another.
  • a particularly useful embodiment of the device according to the invention provides that a plate pack spacers between the individual plates has with deflecting elements protruding beyond the plate ends. This measure gives aer separated heavy solids-loaded phase in a particularly simple manner a movement component parallel to the axis of rotation, but also parallel to the circumference of the jacket, so that the nearest outlet nozzle is reached in the shortest possible time. .
  • FIG. 1 An arrangement of the control device according to the invention in a separator is shown in FIG. 1.
  • the housing 70 of the separator consists, in a manner known per se, of the two housing parts 71 and 72 screwed together. In the area of the largest diameter, nozzle-like openings 73 are arranged which have a free one Allow passage of the heavy mud phase. To control this passage is in
  • the control element 75 configured according to the invention is arranged, which is set in rotation with a differential speed in relation to the housing 70.
  • the housing 70 is rotatably mounted with the hollow shaft 74 in the bearing 76, and on the other hand, the inner parts of the separator are rotatably mounted on the shaft 77 independently of the housing 70.
  • the shaft 77 and the hollow shaft 74 are supported one inside the other by the needle bearings 78.
  • the control device 75 is arranged in support arms 79, which in turn are firmly connected to the shaft 77.
  • the body 81 carrying the separator plates 80 is screwed and rotated firmly to the shaft 77, connected to the control device 75 on the same shaft, at a differential speed with respect to the housing 70.
  • the control device 75 covers the opening 73 in the position shown and closes it in the way already described. However, if, as a result of the relative movement, the recess 85 ah migrates past the opening 73, the latter is temporarily released and the accumulated sludge can escape from the housing 70.
  • both the hollow shaft 74 and the shaft 77 are each equipped with a separate drive disk 82 and 83. These are driven by a Vario gear 86 with the motor 87 with an adjustable speed difference via the V-belt transmission 88 and 89.
  • the turbidity is entered in a manner known per se in accordance with the arrow 90 through the feed pipe 91 into the interior of the body 81 carrying the separator plates 80, on the conically enlarged wall of which the Suspension is passed down and through the openings 92 in the conically widened distributor 93, from where the suspensions in a manner known per se enters the separation chamber of the separator.
  • the lighter phase reaches the outlet chamber 93 in the upper region of the separator and from there into the outlet pipe 94.
  • the amount of sludge discharged per unit of time is set on the one hand by the number and size of the openings 73 on the diameter of the separator housing 70, and on the other hand controlled by the type and design of the control device 75 and its recesses 85 via the differential speed.
  • Fig. 2 shows the control device according to the invention in a centrifuge in which three phases of different weights of solid-liquid mixtures and / or mixtures of liquids of different densities can be separated.
  • the cylindrical housing 70 of the centrifuge consists of the two housing parts 71 and 72 screwed together. In the area of the largest diameter, a number of nozzle-like openings 73 are arranged on the jacket 70, which enable the heavy phase to pass freely.
  • the centrifuge also has special internals 80 which serve to increase the separating effect.
  • the control takes place as described for FIG. 1, by means of one or more Control devices 75, which are arranged in support arms 79. It is also part of the invention that the control of the individual nozzle-like openings 73 can take place independently of one another by setting different differential speeds of the control devices 75 with respect to the housing 70.
  • the three-phase mixture is entered in a known manner according to the arrow 90 through the feed tube 91 into the interior of the internals 80 designed as a plate pack, which is carried by the body 81, on the conically enlarged wall of which the suspension is conducted downward and through the openings 92 in reaches the conically widened distributor 93, from where the three phases reach the separation space of the centrifuge in a manner known per se.
  • the medium-heavy phase enters one Outlet chamber 104 and from there into the outlet pipe 105, while the light phase rises between the plates 97 of the plate pack 80 and is drawn off via the outlet pipe 106.
  • FIGS 3, 4 and 5 show in detail the configuration of the plate internals 80 when the device according to the invention is designed with a cylindrical jacket.
  • deflecting elements 99 are provided, for example by extending the spacers 96 between the individual plates 97 beyond the plate ends 98. By bending the deflection elements 99 in a suitable manner, the movement towards the nearest outlet nozzle 73 is predetermined for the heavier phase.
  • the upper edges of the ends 100 of the deflecting members 99 are rotated about their center of gravity axes 101 in the direction of rotation 102 by an angle ⁇ ⁇ between 0 and 90 °, preferably 60 °, so that the axial flow component is amplified .
  • the deflection elements 99 are bent in the flow direction 103 by an angle Beta / 3 between 0 and 90 °, preferably between 45 and 60 °.
  • a kink or bend of the deflection elements 99 with respect to the axis of rotation can also give the flowing heavy phase a movement component parallel to the axis of rotation and is also part of the subject matter of the present invention.

Abstract

Bei einer Zentrifuge zum Trennen von Feststoff-Flüssigkeitsgemischen, bei welcher mindestens eine eingedickte Feststoffphase mindestens teilweise durch mindestens eine unterhalb des Flüssigkeitsspiegels im Mantel (70) angeordnete Öffnung (73) ausgetragen wird, wobei auch Tellerpakete (80) vorgesehen sind zur Beeinflussung der Strömungsrichtung der schweren Phase. Die Problemlösung sieht vor, daß eine Steuervorrichtung (75) innerhalb des Mantels (70) zum Öffnen oder Schließen der Öffnungen (73) vorgesehen ist. Die Steuervorrichtung (75) ist mit einem Antrieb (77, 83, 86, 87, 89) ausgestattet. Der Mantel (70) ist vorzugsweise zylinderförmig ausgebildet und es sind eine oder mehrere Düsen (73) auf dem Mantel verteilt angeordnet. Die Steuervorrichtungen (75) haben den Zweck, die eingedickte Feststoffphase in kontrollierter Menge und auf einfache Weise regelbar auch in Teilmengen an beliebiger Stelle im Mantelberech abziehen zu können.In a centrifuge for separating solid-liquid mixtures, in which at least one thickened solid phase is at least partially discharged through at least one opening (73) arranged in the jacket (70) below the liquid level, plate packs (80) also being provided to influence the flow direction of the difficult phase. The solution to the problem provides that a control device (75) is provided within the casing (70) for opening or closing the openings (73). The control device (75) is equipped with a drive (77, 83, 86, 87, 89). The jacket (70) is preferably cylindrical and one or more nozzles (73) are arranged distributed on the jacket. The control devices (75) have the purpose of being able to draw off the thickened solid phase in a controlled amount and in a simple manner in a controllable manner, even in partial amounts, at any point in the jacket area.

Description

Die Erfindung betrifft eine Zentrifuge zum Trennen von Feststoff-Flüssigkeitsgemischen, bei welcher mindestens eine eingedickte Feststoffphase mindestens teilweise durch mindestens eine unterhalb des Flüssigkeitsspiegels angeordnete Öffnung ausgetragen wird, wobei auch Tellerpakete vorgesehen sind, zur Beeinflussung der Strömungsrichtung der schweren Phase.The invention relates to a centrifuge for separating solid-liquid mixtures, in which at least one thickened solid phase is at least partially discharged through at least one opening arranged below the liquid level, plate packs also being provided to influence the flow direction of the heavy phase.

Aus der DE-A-2223711 ist eine Steuervorrichtung zum Öffnen und Schließen einer Auslaßöffnung im Mantel einer Zentrifuge bekannt, wobei die Steuervorrichtung außerhalb der Trommel bzw. des Mantels angeoranet ist. Nachteilig ist die genannte Steuervorrichtung sehr kompliziert aufgebaut uno störanfällig. Aus der FR-A-1359356 ist eine Zentrifuge mit Tellerpaketen bekannt, jedoch weist diese Vorrichtung ebenfalls ein kompliziertes und nicht regelbares Austragssystem für die eingedickte Feststoffphase auf.From DE-A-2223711 a control device for opening and closing an outlet opening in the casing of a centrifuge is known, the control device being arranged outside the drum or the casing. Disadvantageously, the control device mentioned is very complicated and susceptible to failure. A centrifuge with plate packs is known from FR-A-1359356, but this device also has a complicated and uncontrollable discharge system for the thickened solid phase.

Durch diese bekannten Anordnungen und Ausbildungen einer Zentrifuge wird ein Ablassen der zu trennenden schweren Phasen mit einer Steuervorrichtung funktionell nicht voll beherrschbar, wobei auch auf einfache Weise der Auslaß beispielsweise durch ein Getriebe betätigt werden kann. Auch wird nicht erreicht, daß eine Abhängigkeit von Betriebszuständen wie Drücken oder ruckweisen Beschleunigungen vermieden ist.Due to these known arrangements and designs of a centrifuge, draining the heavy phases to be separated cannot be fully controlled with a control device, and the outlet can also be actuated in a simple manner, for example by means of a transmission. It is also not achieved that a dependency on operating conditions such as pressures or jerky accelerations is avoided.

Die Aufgabe der Erfindung besteht darin, eine Zentrifuge vorzustellen, die bezüglich des Öffnens und Schließens der im Mantel angeordneten Öffnungen dahingehend verbessert wird, d. h. daß die eingedickte schwere Phase nach Maßgabe von regeltechnisch beherrschten Betriebsparametern über eine Steuervorrichtung derart gesteuert wird, daß die eingedickte schwere Phase in kontrollierter Menge und/oder Menge pro Zeiteinheit abgelassen werden kann.The object of the invention is to present a centrifuge which is improved with respect to the opening and closing of the openings arranged in the jacket, i. H. that the thickened heavy phase is controlled by a control device in accordance with controlled operating parameters such that the thickened heavy phase can be released in a controlled amount and / or amount per unit of time.

Die Aufgabe der Erfindung wird dadurch gelöst, daß die Zentrifuge eine innerhalb des Mantels angeordnete Steuervorrichtung zum Öffnen und Schließen der Öffnungen aufweist.The object of the invention is achieved in that the centrifuge has a control device arranged inside the jacket for opening and closing the openings.

In vorteilhafter Ausgestaltung der Erfindung ist vorgesehen, daß die Steuervorrichtung mit einem Antrieb ausgestattet ist. Auf diese Weise wird sie leicht beherrschbar, d. h. regelbar und es können ruckweise Beschleunigungen vermieden werden.In an advantageous embodiment of the invention it is provided that the control device is equipped with a drive. In this way it becomes easily manageable, i. H. adjustable and jerky accelerations can be avoided.

Mit Vorteil weist die Steuervorrichtung eine die Öffnung mindestens teilweise überdeckende Breite auf und ist vorzugsweise als Scheibe ausgebildet. Hierbei handelt es sich um eine besonders einfache, d.h. kostengünstige Ausbildung der Vorrichtung mit geringer Störanfälligkeit.The control device advantageously has a width that at least partially covers the opening and is preferably designed as a disk. This is a particularly simple, i.e. Cost-effective design of the device with low susceptibility to faults.

In vorteilhafter Ausgestaltung der Erfindung ist vorgesehen, daß der Mantel zylinderförmig ausgebildet ist. Durch diese Maßnahme wird es inbesondere vorteilhaft möglich, den Austragsbereich für die schwere feststoffbeladene Phase zu vergrößern und auch Teilmengen der eingedickten schweren Phase in beliebiger Menge abzuziehen.In an advantageous embodiment of the invention it is provided that the jacket is cylindrical. This measure makes it particularly advantageously possible to enlarge the discharge area for the heavy phase laden with solids and also to subtract any quantity of the thickened heavy phase.

In vorteilhafter Ausgestaltung der Erfindung sind mehrere Steuervorrichtungen und Öffnungen, insbesondere Düsen auf dem Mantel verteilt angeordnet. Hierdurch ergibt sich eine erhöhte Sensibilität der Austragssteuerung.In an advantageous embodiment of the invention, a plurality of control devices and openings, in particular nozzles, are arranged distributed on the jacket. This results in an increased sensitivity of the discharge control.

Zweckmäßig wird die Erfindung auch dadurch ausgestaltet, daß die Steuerung der düsenartigen Öffnungen unabhängig voneinander erfolgt.The invention is also expediently designed in such a way that the nozzle-like openings are controlled independently of one another.

Mit dieser Maßnahme kann insbesondere auch bei grösseren Zentrifugen mit waagerechter Rotationsachse eine Steigerung der Trennwirkung erzielt und der schweren Phase eine verstärkte Bewegungskomponente in Austragsrichtung in etwa parallel zur Rotationsachse vermittelt werden.With this measure, especially in the case of larger centrifuges with a horizontal axis of rotation, an increase in the separation effect can be achieved and the heavy phase can be imparted an increased movement component in the discharge direction approximately parallel to the axis of rotation.

Eine besonders zweckmäßige Ausgestaltung der erfindungsgemäßen Vorrichtung sieht vor, daß ein Tellerpaket Abstandshalter zwischen den einzelnen Tellern aufweist mit über die Tellerenden hinausragenden Umlenkorganen. Durch diese Maßnahme wird aer abgetrennten schweren feststoffbeladenen Phase auf besonders einfache Weise eine Bewegungskomponente parallel zur Rotationsachse, aber auch parallel zum Mantelumfang verliehen, so daß die nächstgelegene Auslaßdüse in kürzestmöglicher Zeit erreicht wird. .A particularly useful embodiment of the device according to the invention provides that a plate pack spacers between the individual plates has with deflecting elements protruding beyond the plate ends. This measure gives aer separated heavy solids-loaded phase in a particularly simple manner a movement component parallel to the axis of rotation, but also parallel to the circumference of the jacket, so that the nearest outlet nozzle is reached in the shortest possible time. .

Im folgenden wird die Erfindung anhand der Zeichnungen im Beispiel näher erläutert.

  • Fig. 1 eine Zentrifuge als Düsenseparator nach der Erfindung, im Schnitt,
  • Fig. 2 eine mit der Erfindung ausgestattete Zentrifuge zur Trennung von drei unterschiedlichen Phasen,
  • Fig. 3 Datailzeichnung des Auschnittes X aus Fig. 2, teils im Schnitt, teils in Ansicht,
  • Fig. 4 Schnitt Y-Y durch die Zentrifuge gemäß Fig.. 2 mit Teller in Draufsicht ohne Schnitt,
  • Fig. 5 perspektivische Seitenansicht der Einbauten der Zentrifuge gemäß Fig. 2.
The invention is explained in more detail below with reference to the drawings in the example.
  • 1 is a centrifuge as a nozzle separator according to the invention, in section,
  • 2 shows a centrifuge equipped with the invention for separating three different phases,
  • 3 detail drawing of the detail X from FIG. 2, partly in section, partly in view,
  • 4 section YY through the centrifuge according to FIG. 2 with plate in plan view without section,
  • 5 is a perspective side view of the internals of the centrifuge according to FIG. 2.

Eine Anordnung der Steuervorrichtung nach der Erfindung in einem Separator zeigt Fig. 1. Das Gehäuse 70 des Separators besteht in an sich bekannter Weise aus den beiden miteinander verschraubten Gehäuseteilen 71 und 72. Im Bereich des größten Durchmessers sind düsenartige Öffnungen 73 angeordnet, welche einen freien Durchgang der schweren Schlammphase ermöglichen. Um diesen Durchgang zu steuern, ist im gezeigten Beispiel das nach der Erfindung ausgestaltete Steuerorgan 75 angeordnet, welches im Verhältnis zum Gehäuse 70 mit einer Differenzgeschwindigkeit in Rotationsbewegung versetzt wird. Zu diesem Zweck ist einerseits das Gehäuse 70 mit der Hohlwelle 74 in der Lagerung 76 drehbar gelagert, und andererseits sind die Innenteile des Separators auf der Welle 77 unaohängig vom Gehäuse 70 drehbar gelagert. Die Welle 77 und die Hohlwelle 74 sind durch die Nadellager 78 ineinander gelagert. Die Steuervorrichtung 75 ist in Tragarmen 79 angeordnet, welche ihrerseits mit der Welle 77 fest verbunden sind. Desgleichen ist der die Separatorenteller 80 tragende Körper 81 fest mit der Welle 77 verschraubt und rotiert, mit der Steuervorrichtung 75 auf gleicher Welle miteinander verbunden, mit Differenzgeschwindigkeit gegenüber dem Gehäuse 70. Die Steuervorrichtung 75 überdeckt in der gezeigten Stellung die Öffnung 73 und verschließt diese in der bereits geschilderten Art und Weise. Wenn jedoch infolge der Relativbewegung die Ausnehmung 85 ah der Öffnung 73 vorbeiwandert, wird diese kurzzeitig freigegeben, und der angesammelte Schlamm kann aus dem Gehäuse 70 austreten.An arrangement of the control device according to the invention in a separator is shown in FIG. 1. The housing 70 of the separator consists, in a manner known per se, of the two housing parts 71 and 72 screwed together. In the area of the largest diameter, nozzle-like openings 73 are arranged which have a free one Allow passage of the heavy mud phase. To control this passage is in In the example shown, the control element 75 configured according to the invention is arranged, which is set in rotation with a differential speed in relation to the housing 70. For this purpose, on the one hand, the housing 70 is rotatably mounted with the hollow shaft 74 in the bearing 76, and on the other hand, the inner parts of the separator are rotatably mounted on the shaft 77 independently of the housing 70. The shaft 77 and the hollow shaft 74 are supported one inside the other by the needle bearings 78. The control device 75 is arranged in support arms 79, which in turn are firmly connected to the shaft 77. Likewise, the body 81 carrying the separator plates 80 is screwed and rotated firmly to the shaft 77, connected to the control device 75 on the same shaft, at a differential speed with respect to the housing 70. The control device 75 covers the opening 73 in the position shown and closes it in the way already described. However, if, as a result of the relative movement, the recess 85 ah migrates past the opening 73, the latter is temporarily released and the accumulated sludge can escape from the housing 70.

Zum Zwecke der Relativbewegung ist sowohl die Hohlwelle 74 als auch die Welle 77 je mit einer separaten Antriebsscheibe 82 und 83 ausgestattet. Diese werden durch ein Variogetriebe 86 mit dem Motor 87 mit einstellbarer Geschwindigkeitsdifferenz über die Keilriementransmission 88 und 89 angetrieben. Die Eingabe der Trübe erfolgt in an sich bekannter Weise entsprechend dem Pfeil 90 durch das Aufgaberohr 91 in das Innere des die Separatorenteller 80 tragenden Körpers 81, an dessen konisch erweiterter Wand die Suspension nach unten geleitet wird und durch die Öffnungen 92 in den konisch erweiterten Verteiler 93 gelangt, von wo die Suspensionen in an sich bekannter Weise in den Trennraum des Separators gelangt. Während die sich absetzende schwerere feststoffhaltige Schlammphase durch die nach der Erfindung angeordnete Steuervorrichtung 75 in geregelter Menge durch die Auslaßdüsen 73 abgelassen wird, gelangt die leichtere Phase im oberen Bereich des Separators in die Auslasskammer 93 und von dort in das Auslassrohr 94.For the purpose of relative movement, both the hollow shaft 74 and the shaft 77 are each equipped with a separate drive disk 82 and 83. These are driven by a Vario gear 86 with the motor 87 with an adjustable speed difference via the V-belt transmission 88 and 89. The turbidity is entered in a manner known per se in accordance with the arrow 90 through the feed pipe 91 into the interior of the body 81 carrying the separator plates 80, on the conically enlarged wall of which the Suspension is passed down and through the openings 92 in the conically widened distributor 93, from where the suspensions in a manner known per se enters the separation chamber of the separator. While the heavier solids-containing sludge phase settling is discharged in a controlled amount by the control device 75 arranged according to the invention through the outlet nozzles 73, the lighter phase reaches the outlet chamber 93 in the upper region of the separator and from there into the outlet pipe 94.

Auch im vorliegenden Beispiel wird die pro Zeiteinheit ausgetragene Schlamm-Menge einerseits Durch Anzahl und Größe der Öffnungen 73 am Durchmesser des Separatorengehäuses 70 eingestellt, und andererseits durch die Art und Ausbildung der Steuervorrichtung 75 sowie deren Ausnehmungen 85 über die Differenzgeschwindigkeit beherrscht.In the present example, too, the amount of sludge discharged per unit of time is set on the one hand by the number and size of the openings 73 on the diameter of the separator housing 70, and on the other hand controlled by the type and design of the control device 75 and its recesses 85 via the differential speed.

Fig. 2 zeigt die Steuervorrichtung nach der Erfindung in einer Zentrifuge, in der drei unterschiedlich schwere Phasen von Feststoff-Flüssigkeitsgemischen und/oder Gemischen von Flüssigkeiten unterschiedlicher Dichte voneinander getrennt werden können. Das zylinderförmige Gehäuse 70 der Zentrifuge besteht aus den beiden miteinander verschraubten Gehäuseteilen 71 und 72. Im Bereich des größten Durchmessers sind mehrere düsenartige Öffnungen 73 auf dem Mantel 70 verteilt angeordnet, welche einen freien Durchgang der schweren Phase ermöglichen. Neben der Steuervorrichtung 75 weist die Zentrifuge auch besondere Einbauten 80 auf, die der Steigerung der Trennwirkung dienen. Die Steuerung erfolgt wie zu Fig. 1 beschrieben, mittels einem oder mehreren Steuervorrichtungen 75, welche in Tragarmen 79 angeordnet sind. Es gehört dabei ebenso zur Erfindung, daß die Steuerung der einzelnen düsenartigen Öffnungen 73 unabhängig voneinander erfolgen kann, durch Einstellung unterschiedlicher Differenzgeschwindigkeiten der Steuervorrichtungen 75 gegenüber dem Gehäuse 70.Fig. 2 shows the control device according to the invention in a centrifuge in which three phases of different weights of solid-liquid mixtures and / or mixtures of liquids of different densities can be separated. The cylindrical housing 70 of the centrifuge consists of the two housing parts 71 and 72 screwed together. In the area of the largest diameter, a number of nozzle-like openings 73 are arranged on the jacket 70, which enable the heavy phase to pass freely. In addition to the control device 75, the centrifuge also has special internals 80 which serve to increase the separating effect. The control takes place as described for FIG. 1, by means of one or more Control devices 75, which are arranged in support arms 79. It is also part of the invention that the control of the individual nozzle-like openings 73 can take place independently of one another by setting different differential speeds of the control devices 75 with respect to the housing 70.

Die Eingabe des Dreiphasengemisches erfolgt in bekannter Weise entsprechend dem Pfeil 90 durch das Aufgaberohr 91 in das Innere der als Tellerpaket ausgebildeten Einbauten 80, das vom Körper 81 getragen wird, an dessen konisch erweiterter Wand die Suspension nach unten geleitet wird und durch die Öffnungen 92 in den konisch erweiterten Verteiler 93 gelangt, von wo aus die drei Phasen in an sich bekannter Weise in den Trennraum der Zentrifuge gelangen. Während die sich absetzende schwerste feststoffhaltige Phase durch die nach der Erfindung angeordnete Steuervorrichtung 75 in geregelter Menge durch die Auslaßdüsen 73 abgelassen wird, wobei die Auslaßdüsen 73 unterhalb bzw. auf größerem Radius als der Flüssigkeitsspiegel der schweren Phase angeordnet sind, gelangt die mittelschwere Phase in eine Auslaßkammer 104 und von dort in das Auslaßrohr 105, während die leichte Phase zwischen den Tellern 97 des Tellerpaketes 80 aufsteigt und über das Auslaßrohr 106 abgezogen wird.The three-phase mixture is entered in a known manner according to the arrow 90 through the feed tube 91 into the interior of the internals 80 designed as a plate pack, which is carried by the body 81, on the conically enlarged wall of which the suspension is conducted downward and through the openings 92 in reaches the conically widened distributor 93, from where the three phases reach the separation space of the centrifuge in a manner known per se. While the heaviest solid phase which settles out is discharged in a controlled amount by the control device 75 arranged according to the invention through the outlet nozzles 73, the outlet nozzles 73 being arranged below or at a larger radius than the liquid level of the heavy phase, the medium-heavy phase enters one Outlet chamber 104 and from there into the outlet pipe 105, while the light phase rises between the plates 97 of the plate pack 80 and is drawn off via the outlet pipe 106.

Die Figuren 3, 4 und 5 zeigen in Detailausschnitten die Ausgestaltung der Tellereinbauten 80 bei Ausbildung der erfindungsgemäßen Vorrichtung mit zylinderförmigem Mantel. Damit die schwere Phase, die das Tellerpaket 80 infolge von Zentrifugal- und Trägheitskräften in Richtung 103 auf den Außenmantel 70 verläßt, eine verstärkte Bewegungskomponente parallel zur Rotationsachse erhält, werden Umlenkorgane 99 vorgesehen, beispielsweise durch Verlängerung der Abstandshalter 96 zwischen den einzelnen Tellern 97 über die Tellerenden 98 hinaus. Durch Biegung der Umlenkorgane 99 in geeigneter Weise wird so der schwereren Phase die Bewegung in Richtung auf die nächstgelegene Auslaßdüse 73 vorgegeben.Figures 3, 4 and 5 show in detail the configuration of the plate internals 80 when the device according to the invention is designed with a cylindrical jacket. This means that the heavy phase, which the plate pack 80 as a result of centrifugal and inertial forces in the direction 103 on the outer casing 70 leaves, receives an increased movement component parallel to the axis of rotation, deflecting elements 99 are provided, for example by extending the spacers 96 between the individual plates 97 beyond the plate ends 98. By bending the deflection elements 99 in a suitable manner, the movement towards the nearest outlet nozzle 73 is predetermined for the heavier phase.

Die oberen Kanten der Enden 100 der Umlenkorgane 99 ist zu diesem Zweck, wie Fig. 4 zeigt, um deren Schwerpunktachsen 101 in Rotationsrichtung 102 um einen Winkel Alpha α zwischen 0 bis 90°, vorzugsweise 60° verdreht, so daß die axiale Strömungskomponente verstärkt wird. Gegenüber den Abstandshaltern 96 sind die Umlenkorgane 99 um einen Winkel Beta /3 zwischen 0 und 90°, vorzugsweise zwischen 45 und 60° in Strömungsrichtung 103 abgeknickt.For this purpose, as shown in FIG. 4, the upper edges of the ends 100 of the deflecting members 99 are rotated about their center of gravity axes 101 in the direction of rotation 102 by an angle α α between 0 and 90 °, preferably 60 °, so that the axial flow component is amplified . Compared to the spacers 96, the deflection elements 99 are bent in the flow direction 103 by an angle Beta / 3 between 0 and 90 °, preferably between 45 and 60 °.

Eine Abknickung bzw. Biegung der Umlenkorgane 99 gegenüber der Rotationsachse kann der strömenden schweren Phase ebenfalls eine Bewegungskomponente parallel zur Rotationsachse verleihen und gehört auch zum Gegenstand der vorliegenden Erfindung.A kink or bend of the deflection elements 99 with respect to the axis of rotation can also give the flowing heavy phase a movement component parallel to the axis of rotation and is also part of the subject matter of the present invention.

Im übrigen dienen die in aen Figuren dargestellten und erläuterten Ausführungsbeispiele lediglich zur Veranschaulichung der prinzipiellen Funktion einer Steuervorrichtung nach der Erfindung. Deren detaillierte konstruktive Ausgestaltung, soweit sie im Bereich des handwerklichen Könnens liegt und vom Fachmann ohne erfinderische Eingebung gestaltet werden kann, fällt ebenfalls unter die Erfindung, sofern sie einem der geltenden Patentansprüche genügt.Otherwise, the exemplary embodiments illustrated and explained in the figures serve only to illustrate the basic function of a control device according to the invention. Their detailed constructive design, insofar as it lies in the area of manual skill and can be designed by a person skilled in the art without inventive step, also falls under the invention if it meets one of the applicable patent claims.

Claims (9)

1. Zentrifuge zum Trennen von Feststoff-Flüssigkeits-Gemischen, bei welcher mindestens eine eingedickte Feststoffphase mindestens teilweise durch mindestens eine unterhalb des Flüssigkeitsspiegels (70) angeordnete Öffnung (73) ausgetragen wird, wobei auch Tellerpakete (80) vorgesehen sind zur Beeinflussung der Strömungsrichtung der schweren Phase, dadurch gekennzeichnet, daß sie eine innerhalb des Mantels (70) angeordnete Steuervorrichtung (75) zum Öffnen oder Schließen der Öffnungen (73) aufweist.1. Centrifuge for separating solid-liquid mixtures, in which at least one thickened solid phase is at least partially discharged through at least one opening (73) arranged below the liquid level (70), plate packs (80) also being provided to influence the flow direction of the heavy phase, characterized in that it has a control device (75) arranged inside the casing (70) for opening or closing the openings (73). 2. Zentrifuge nach Anspruch 1, dadurch gekennzeichnet, daß die Steuervorrichtung (75) mit einem Antrieb (77, 83, 86, 87, 89) ausgestattet ist.2. Centrifuge according to claim 1, characterized in that the control device (75) is equipped with a drive (77, 83, 86, 87, 89). 3. Zentrifuge nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Steuervorrichtung (75) eine die Öffnung (73) mindestens teilweise überdeckende Breite aufweist und vorzugsweise als Scheibe ausgebildet ist.3. Centrifuge according to claim 1 or 2, characterized in that the control device (75) has an opening (73) at least partially covering width and is preferably designed as a disc. 4. Zentrifuge nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Mantel (70) zylinderförmig ausgebildet ist.4. Centrifuge according to one of claims 1 to 3, characterized in that the jacket (70) is cylindrical. 5. Zentrifuge nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß mehrere Steuervorrichtungen (75) und Öffnungen (73), insbesondere Düsen, auf dem Mantel (70) verteilt angeordnet sind.5. Centrifuge according to one of claims 1 to 4, characterized in that a plurality of control devices (75) and openings (73), in particular nozzles, are arranged distributed on the jacket (70). 6. Zentrifuge nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Steuerung der düsenartigen Öffnungen (73) unabhängig voneinander erfolgt.6. Centrifuge according to one of claims 1 to 5, characterized in that the control of the nozzle-like openings (73) takes place independently of one another. 7. Zentrifuge nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß ein Tellerpaket (80) Abstandshalter (96) zwischen den einzelnen Tellern (97) aufweist mit über die Tellerenden (98) hinausragenden Umlenkorgangen (99).7. Centrifuge according to one of claims 1 to 6, characterized in that a plate pack (80) spacer (96) between the individual plates (97) with over the plate ends (98) projecting deflecting passages (99). 8. Zentrifuge nach Anspruch 7, dadurch gekennzeichnet, daß die oberen Kanten der Enden (100) der Umlenkorgane (99) um deren Schwerpunktachsen (101) in Rotationsrichtung (102) um einen Winkel Alpha (α) zwischen 0 bis 900, vorzugsweise 60° verdreht sind.8. Centrifuge according to claim 7, characterized in that the upper edges of the ends (100) of the deflection members (99) about their axes of focus (101) in the direction of rotation (102) by an angle alpha (α) between 0 to 90 0 , preferably 60 ° are twisted. 9. Zentrifuge nach Anspruch 7 oder 8, dadurch gekennzeichnet, daß die Umlenkorgane (99) gegenüber den Abstandshaltern (96) um einen Winkel Be'ta (ß ) zwischen 0 und 900, vorzugsweise zwischen 45 und 60° in Strömungsrichtung (103) abgeknickt sind.9. Centrifuge according to claim 7 or 8, characterized in that the deflection members (99) relative to the spacers (96) by an angle Be'ta (β) between 0 and 90 0 , preferably between 45 and 60 ° in the flow direction (103) are kinked.
EP83112794A 1979-10-20 1980-10-15 Centrifuge for the separation of solid-liquid mixtures Withdrawn EP0115018A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19792942451 DE2942451A1 (en) 1979-10-20 1979-10-20 Slurry-separating centrifuge with thickened slurry discharge apertures - whose opening and closing controls incorporate a drive
DE2942451 1979-10-20
DE19803036550 DE3036550A1 (en) 1980-09-27 1980-09-27 Slurry outlet on centrifuge bowl - having internal closure on screw inside bowl to give controlled opening
DE3036550 1980-09-27

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EP80106240A Division EP0027630B1 (en) 1979-10-20 1980-10-15 Centrifuge for separating solid-liquid mixtures
EP80106240A Division-Into EP0027630B1 (en) 1979-10-20 1980-10-15 Centrifuge for separating solid-liquid mixtures

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EP0115018A2 true EP0115018A2 (en) 1984-08-08
EP0115018A3 EP0115018A3 (en) 1985-10-30

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EP83112794A Withdrawn EP0115018A3 (en) 1979-10-20 1980-10-15 Centrifuge for the separation of solid-liquid mixtures

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US (1) US4339072A (en)
EP (2) EP0027630B1 (en)
AU (1) AU538688B2 (en)
DD (1) DD153583A5 (en)
DE (1) DE3069806D1 (en)
DK (1) DK156815C (en)

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EP0115018A3 (en) 1985-10-30
AU6325780A (en) 1981-04-30
AU538688B2 (en) 1984-08-23
EP0027630B1 (en) 1984-12-12
EP0027630A1 (en) 1981-04-29
DK156815C (en) 1990-03-05
DE3069806D1 (en) 1985-01-24
DK156815B (en) 1989-10-09
DD153583A5 (en) 1982-01-20
DK441780A (en) 1981-04-21
US4339072A (en) 1982-07-13

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