EP2026909A1 - Centrifuge, in particular separator, having a feed line for control fluid - Google Patents

Centrifuge, in particular separator, having a feed line for control fluid

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Publication number
EP2026909A1
EP2026909A1 EP07730080A EP07730080A EP2026909A1 EP 2026909 A1 EP2026909 A1 EP 2026909A1 EP 07730080 A EP07730080 A EP 07730080A EP 07730080 A EP07730080 A EP 07730080A EP 2026909 A1 EP2026909 A1 EP 2026909A1
Authority
EP
European Patent Office
Prior art keywords
centrifuge
control fluid
drive spindle
particular separator
separator
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.)
Granted
Application number
EP07730080A
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German (de)
French (fr)
Other versions
EP2026909B1 (en
Inventor
Johannes Droste
Norbert Wegener
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.)
GEA Mechanical Equipment GmbH
Original Assignee
GEA Westfalia Separator GmbH
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
Application filed by GEA Westfalia Separator GmbH filed Critical GEA Westfalia Separator GmbH
Publication of EP2026909A1 publication Critical patent/EP2026909A1/en
Application granted granted Critical
Publication of EP2026909B1 publication Critical patent/EP2026909B1/en
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Classifications

    • 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

Definitions

  • Centrifuge in particular separator, with a supply line for control fluid
  • the invention relates to a centrifuge, in particular a separator, according to the preamble of claim 1.
  • separators suitable for industrial use are known per se from the prior art.
  • separators for discharging solids comprise a hydraulic system which has a closure element which can be actuated by means of control fluid and which is generally designed as a piston slide.
  • FIG. Fig. 2 shows the lower portion of a self-draining Separatortrommel having a hydraulic system, with which it is possible to perform controlled partial discharges of the centrifugal drum.
  • the hydraulic system comprises a supply line for closing fluid (below) and valve control fluid (above) as control fluid, which can be conducted in closing chambers a, b.
  • a liquid ring exerts a force on the spool, which presses it up into a position in which it closes the Feststoffaustragsö Maschinenen. If an emptying of the drum to be made, the valve c is opened by opening fluid.
  • control fluid is supplied by control fluid supply lines which extend relatively close to the spindle parallel to this vertically upwards into the drum inside which they inject the control fluid radially outwards into the supply lines to the closing chambers and the valve c ,
  • the supply line for the control fluid opens radially in front of the drive spindle in an outlet region which is aligned and arranged such that the exiting control fluid can be sprayed directly against the drive spindle such that a portion of the control fluid - or the entire control fluid - passes through a gap between the drive spindle and the centrifugal drum or a rotatably connected to the centrifugal drum part enters the hydraulic system inside the drum.
  • direct means that there is no baffle or other deflecting device between the exit from the supply line for the control fluid and the drive spindle.
  • the drum shell or the rotatably connected to the drum part can extend radially almost directly almost to the drive spindle zoom.
  • the spindle in the region in which the water jet occurs and in which it enters the drum has a relatively smooth surface, ie, it should preferably have no bumps that would distract the water jet undesirable, in particular should There are no grooves or sudden diameter changes in the area. Preferably, it has a constant or slightly conical diameter.
  • the outlet area is designed as an outlet nozzle and the outlet nozzle is oriented such that the control fluid is preferably acute-angled - ie at an angle relative to the axis of rotation which is between 0 ° and 90 °, preferably between 20 ° and 70 ° - without intermediate elements such as a baffle against the Drive spindle is injected in the region of the gap.
  • the idea of the invention is implemented particularly advantageously.
  • the hydraulic system which can be charged with fluid can be used, for example, to actuate a wide variety of emptying mechanisms, thus for controlling piston slides, diaphragms, piston valves and / or piston-slide-like constructions.
  • Fig. 1 is a sectional view of a portion of a separator according to the invention, illustrating the control fluid supply to the centrifugal drum;
  • FIG. 2 shows a section through a separator drum according to the prior art.
  • Fig. 2 shows a lower portion of a separator 1 with a centrifugal drum 2 with vertical axis of rotation D, the liquid discharges (not shown here) and at least one or more Feststoffaustragsö réelle (s) 3, which / which hydraulically by means of control fluid - in particular control fluid - actuated Piston slide 4 is assigned.
  • the control fluid is directed to the centrifugal drum 1 through at least one (or more) supply line (s) 14 for control fluid.
  • a separator which may otherwise be constructed, for example, analogously to FIG. 2 or otherwise, the at least one supply line 14 for control fluid radially in front of the drive spindle 5 in an outlet region, in particular an outlet nozzle 6, which is aligned in that the control fluid is injected at an acute angle at an angle ⁇ relative to the axis of rotation against the drive spindle 5, which lies between 0 ° and 90 °, in particular between 20 ° and 70 °.
  • the outlet nozzle 6 is aligned such that at least a portion of the exiting from the outlet nozzle 6 control fluid through an annular gap 7 between the drive spindle 5 and the centrifugal drum (or rotatably connected to the drum part, here a ring 8) from below into the centrifugal drum 2 and thus in the hydraulic system 9 enters (see the arrow W, which illustrates the entry of the control fluid), which can serve to actuate a piston valve of the type of Fig. 2 or possibly also for actuating other fluidbetätigter devices.
  • the radial extent of the annular gap 7 between the drive spindle 5 and the drum or here the ring 8 is only 0.5 mm to 10 mm, preferably 1 mm to 4 mm.
  • the exit nozzle 6 is preferably designed to produce a directional, relatively constant diameter jet that does not fan out substantially, i. that the beam in the area of impact should preferably have a diameter which is less than the spindle diameter, in particular less than 50%, very particularly preferably less than 35% of the spindle diameter.
  • a slinger 10 is disposed on the drive spindle 5.
  • This slinger 10 has a conical shape here. It protrudes radially over a likewise conically shaped cover 11 on the machine frame 12 away, which does not rotate during operation and up to an annular gap 13 to the drive spindle 5 heranragt.
  • a stepped shape of the slinger as well as the cover would also be conceivable (e.g., stepped cylindrical).
  • the area below the drum space ie the space which directly surrounds the centrifugal drum
  • the area below the drum space effectively and simply labyrinth seal-like protected against the ingress of contaminants, in particular against the ingress of dripping control fluid.

Abstract

Centrifuge, in particular separator, (1), which possesses the following: a rotatable spinning drum (2) having a vertical axis of rotation (D), a rotatable drive spindle (5) for the spinning drum (2), at least one feed line (14) for a control fluid into a hydraulic system in the interior of the spinning drum, wherein the feed line (14) for the control fluid opens out radially before the drive spindle (5) in an outlet region (6) which is directed and arranged in such a manner that the exiting control fluid can be sprayed directly against the drive spindle (5) in such a manner that a part of the control fluid enters into the hydraulic system (9) in the interior of the drum through a gap (7) between the drive spindle (5) and the spinning drum (2) or a part (8) connected in a torque-proof manner to the spinning drum (2).

Description

Zentrifuge, insbesondere Separator, mit einer Zuleitung für Steuerfluid Centrifuge, in particular separator, with a supply line for control fluid
Die Erfindung betrifft eine Zentrifuge, insbesondere einen Separator, nach dem Oberbegriff des Anspruchs 1.The invention relates to a centrifuge, in particular a separator, according to the preamble of claim 1.
Für den industriellen Einsatz geeignete Separatoren sind aus dem Stand der Technik an sich bekannt. Nach einer Bauart weisen derartige Separatoren zur Feststoffentleerung ein Hydrauliksystem auf, welches ein mittels Steuerfluid betätigbares Verschlussorgan aufweist, das in der Regel als Kolbenschieber ausgebildet ist.Separators suitable for industrial use are known per se from the prior art. According to one type, such separators for discharging solids comprise a hydraulic system which has a closure element which can be actuated by means of control fluid and which is generally designed as a piston slide.
Eine weitere bekannte Konstruktion des Standes der Technik ist in Fig. 2 dargestellt. Fig. 2 zeigt den unteren Bereich einer selbst entleerenden Separatortrommel, die ein Hydrauliksystem aufweist, mit dem es möglich ist, kontrollierte Teilentleerungen der Schleudertrommel durchzuführen.Another known construction of the prior art is shown in FIG. Fig. 2 shows the lower portion of a self-draining Separatortrommel having a hydraulic system, with which it is possible to perform controlled partial discharges of the centrifugal drum.
Das Hydrauliksystem umfasst eine Zuleitung für Schließfluid (unten) und Ventilsteu- erfluid (oben) als Steuerfluid, welches in Schließkammern a, b leitbar ist. Infolge der Zentrifugalkraft bildet sich in den Schließkammern ein Flüssigkeitsring aus, der eine Kraft auf den Kolbenschieber ausübt, welche diesen oben in eine Position drückt, in welcher er die Feststoffaustragsöffnungen verschließt. Soll eine Entleerung der Trommel vorgenommen werden, wird das Ventil c durch Öffnungsfluid geöffnet.The hydraulic system comprises a supply line for closing fluid (below) and valve control fluid (above) as control fluid, which can be conducted in closing chambers a, b. As a result of the centrifugal force forms in the lock chambers, a liquid ring exerts a force on the spool, which presses it up into a position in which it closes the Feststoffaustragsöffnungen. If an emptying of the drum to be made, the valve c is opened by opening fluid.
Wie zu erkennen, wird das Steuerfluid durch Steuerfluidzuleitungen zugeleitet, welche sich relativ nahe zur Spindel parallel zu dieser vertikal nach oben bis in die Trommel hinein erstrecken, in deren Inneren sie das Steuerfluid radial nach außen in die Zuleitungen zu den Schließkammern und zum Ventil c spritzen.As can be seen, the control fluid is supplied by control fluid supply lines which extend relatively close to the spindle parallel to this vertically upwards into the drum inside which they inject the control fluid radially outwards into the supply lines to the closing chambers and the valve c ,
Derartige Konstruktionen sind aus der gattungsgemäßen US 4,479,788, der US 3,938,734 und der DE 1532676 OS bekannt. Eine weitere gattungsgemäße Zentrifuge ist aus der DE AS 2 022 197 bekannt. Die DE 924 979 PS zeigt das direkte Einspritzen von Steuerfluid aus einem Ring in eine Kammer am Unterteil der Zentrifuge.Such constructions are known from the generic US 4,479,788, US 3,938,734 and DE 1532676 OS. Another generic centrifuge is known from DE AS 2 022 197. DE 924 979 PS shows the direct injection of control fluid from a ring into a chamber at the bottom of the centrifuge.
Noch aufwendigere Konstruktionen zeigen die US 4,717,376 und die US 4,781,670 oder die DE 38 29 158 Al, wobei nach der letzteren Schrift Flüssigkeit durch eine Spindel hindurch in das Trommelunterteil geleitet wird.Even more complex constructions are shown in US Pat. Nos. 4,717,376 and 4,781,670 or in DE 38 29 158 A1, in which, according to the latter document, liquid is passed through a spindle into the drum base.
Darüber hinaus ist es aus der WO 96/08313 Al bekannt, die Zuleitung für das Steuerfluid radial vor der Antriebsspindel auf ein Ablenkblech zu lenken, welches die Flüssigkeit durch einen Spalt zwischen der Antriebsspindel und der Schleudertrommel oder einem mit der Schleudertrommel drehfest verbundenen Teil in das Hydrauliksystem im Inneren der Trommel leitet. Auch hieran ist der immer noch relativ hohe aufwendige konstruktive Aufwand problematisch.Moreover, it is known from WO 96/08313 Al to direct the supply line for the control fluid radially in front of the drive spindle on a baffle, which the liquid through a gap between the drive spindle and the centrifugal drum or a rotatably connected to the centrifugal drum part in the Hydraulic system inside the drum passes. Again, the still relatively high cost of construction is problematic.
Zum technologischen Hintergrund wird noch die US 2,564,899 genannt.The technological background is still called US 2,564,899.
Es besteht daher der Bedarf nach einer weiteren konstruktiven Vereinfachung der Steuerfluidzufuhr in die Schleudertrommel.There is therefore a need for a further constructive simplification of the control fluid supply into the centrifugal drum.
Die Lösung dieses Problems ist die Aufgabe der Erfindung.The solution to this problem is the object of the invention.
Die Erfindung löst diese Aufgabe durch den Gegenstand des Anspruchs 1.The invention solves this problem by the subject matter of claim 1.
Danach mündet die Zuleitung für das Steuerfluid radial vor der Antriebsspindel in einem Austrittsbereich, der derart ausgerichtet und angeordnet ist, dass das austretende Steuerfluid derart direkt gegen die Antriebsspindel spritzbar ist, dass ein Teil des Steu- erfluids - oder das gesamte Steuerfluid - durch einen Spalt zwischen der Antriebsspindel und der Schleudertrommel oder einem mit der Schleudertrommel drehfest verbundenen Teil in das Hydrauliksystem im Inneren der Trommel eintritt. Direkt bedeutet insbesondere, dass kein Ablenkblech oder eine sonstige ablenkende Einrichtung zwischen dem Austritt aus der Zuleitung für das Steuerfluid und der Antriebsspindel liegt. Derart ist es nicht mehr notwendig, die Steuerfluidzuleitung selbst direkt bis in die Schleudertrommel zu fuhren, so dass der Trommelmantel bzw. das mit der Trommel drehfest verbundene Teil radial relativ nahe fast direkt bis an die Antriebsspindel heran reichen können.Thereafter, the supply line for the control fluid opens radially in front of the drive spindle in an outlet region which is aligned and arranged such that the exiting control fluid can be sprayed directly against the drive spindle such that a portion of the control fluid - or the entire control fluid - passes through a gap between the drive spindle and the centrifugal drum or a rotatably connected to the centrifugal drum part enters the hydraulic system inside the drum. In particular, direct means that there is no baffle or other deflecting device between the exit from the supply line for the control fluid and the drive spindle. Thus, it is no longer necessary to drive the control fluid supply itself directly into the centrifugal drum, so that the drum shell or the rotatably connected to the drum part can extend radially almost directly almost to the drive spindle zoom.
Unerwartet kann zudem auch das Umlenkblech der WO 9608313Al eingespart werden, denn es hat sich herausgestellt, dass trotz der Drehung der Spindel eine Umlenkung des Fluidstrahls (als Fluid wird beispielsweise Wasser eingesetzt) auch an der drehenden Spindel eine Umlenkung desselben in die Trommel erfolgt, so dass das FIu- idsystem im Inneren der Trommel hervorragend mit dem Fluid beschickt wird.Unexpectedly, it is also possible to save the baffle of WO 9608313Al, because it has been found that despite the rotation of the spindle, a deflection of the fluid jet (as fluid, for example, water is used) is also deflected into the drum at the rotating spindle that the fluid system inside the drum is perfectly supplied with the fluid.
Dabei ist es vorteilhaft, wenn die Spindel in dem Bereich, in welchem der Wasserstrahl auftritt und in dem sie in die Trommel eintritt über eine relativ glatte Oberfläche verfügt, d.h., sie sollte vorzugsweise keine Unebenheiten aufweisen, die den Wasserstrahl ungewünscht ablenken würden, insbesondere sollten in dem Bereich keine rillen oder sprunghafte Durchmesseränderungen vorhanden sein. .Vorzugsweise weist sie einen konstanten oder leicht konischen Durchmesser auf.It is advantageous if the spindle in the region in which the water jet occurs and in which it enters the drum has a relatively smooth surface, ie, it should preferably have no bumps that would distract the water jet undesirable, in particular should There are no grooves or sudden diameter changes in the area. Preferably, it has a constant or slightly conical diameter.
Alternativ könnte sie auch konisch ausgebildet sein.Alternatively, it could also be conical.
Der sonst übliche relativ große radiale Spalt (siehe Fig. 2) zwischen der Antriebsspindel und der Trommel bzw. einem mit der Trommel drehfest verbundenem Teil wie einem Ring kann auf diese Weise zudem deutlich verkleinert werden, was u.a. den Vorteil mit sich bringt, dass der Steuerfluid-Überlaufdurchmesser in der Schleudertrommel näher zum Zentrum rücken kann.The otherwise usual relatively large radial gap (see Fig. 2) between the drive spindle and the drum or a rotatably connected to the drum part such as a ring can also be significantly reduced in this way, which u.a. brings with it the advantage that the control fluid overflow diameter in the centrifugal drum can move closer to the center.
Vorzugsweise ist der Austrittsbereich als Austrittsdüse ausgelegt und die Austrittsdüse ist derart ausgerichtet, dass das Steuerfluid vorzugsweise spitzwinklig - d.h. in einem Winkel relativ zur Drehachse, der zwischen 0° und 90°, vorzugsweise zwischen 20° und 70° liegt - ohne dazwischen liegende Elemente wie ein Ablenkblech gegen die Antriebsspindel im Bereich des Spaltes gespritzt wird. Derart wird der Gedanke der Erfindung besonders vorteilhaft umgesetzt.Preferably, the outlet area is designed as an outlet nozzle and the outlet nozzle is oriented such that the control fluid is preferably acute-angled - ie at an angle relative to the axis of rotation which is between 0 ° and 90 °, preferably between 20 ° and 70 ° - without intermediate elements such as a baffle against the Drive spindle is injected in the region of the gap. In this way, the idea of the invention is implemented particularly advantageously.
Das mit Fluid beschickbare Hydrauliksystem kann beispielsweise zur Betätigung verschiedenster Entleerungsmechanismen genutzt werden, so zur Ansteuerung von Kolbenschiebern, Membranen, Kolbenventilen und/oder kolbenschieberähnlichen Konstruktionen.The hydraulic system which can be charged with fluid can be used, for example, to actuate a wide variety of emptying mechanisms, thus for controlling piston slides, diaphragms, piston valves and / or piston-slide-like constructions.
Vorteilhafte Ausgestaltungen der Erfindung sind den Unteransprüchen zu entnehmen.Advantageous embodiments of the invention can be found in the dependent claims.
Nachfolgend wird die Erfindung anhand eines Ausfuhrungsbeispiels unter Bezug auf die Zeichnung näher beschrieben. Es zeigt:The invention will be described with reference to an exemplary embodiment with reference to the drawings. It shows:
Fig. 1 eine Schnittansicht eines Abschnitts eines erfindungsgemäßen Separators, welche die Steuerfluidzufuhr in die Schleudertrommel veranschaulicht; undFig. 1 is a sectional view of a portion of a separator according to the invention, illustrating the control fluid supply to the centrifugal drum; and
Fig. 2 einen Schnitt durch eine Separatortrommel nach dem Stand der Technik.2 shows a section through a separator drum according to the prior art.
Fig. 2 zeigt einen unteren Teilbereich eines Separators 1 mit einer Schleudertrommel 2 mit vertikaler Drehachse D, die Flüssigkeitsausträge (hier nicht dargestellt) und wenigstens eine oder mehrere Feststoffaustragsöffnung(en) 3 aufweist, der/denen ein hydraulisch mittels Steuerfluid - insbesondere Steuerfluid - betätigter Kolbenschieber 4 zugeordnet ist.Fig. 2 shows a lower portion of a separator 1 with a centrifugal drum 2 with vertical axis of rotation D, the liquid discharges (not shown here) and at least one or more Feststoffaustragsöffnung (s) 3, which / which hydraulically by means of control fluid - in particular control fluid - actuated Piston slide 4 is assigned.
Das Steuerfluid wird durch wenigstens eine (oder mehrere) Zuleitung(en) 14 für Steuerfluid zur Schleudertrommel 1 geleitet.The control fluid is directed to the centrifugal drum 1 through at least one (or more) supply line (s) 14 for control fluid.
Nach Fig. 1 endet bei einem erfindungsgemäßen Separator, der ansonsten beispielsweise analog zur Fig. 2 oder auch anders aufgebaut sein kann, die wenigstens eine Zuleitung 14 für Steuerfluid radial vor der Antriebsspindel 5 in einem Austrittsbereich, insbesondere einer Austrittsdüse 6, die derart ausgerichtet ist, dass das Steuerfluid spitzwinklig in einem Winkel α relativ zu Drehachse gegen die Antriebsspindel 5 gespritzt wird, der zwischen 0° und 90°, insbesondere zwischen 20° und 70° liegt. Die Austrittsdüse 6 ist derart ausgerichtet, dass wenigstens ein Teil des aus der Austrittsdüse 6 austretenden Steuerfluids durch einen Ringspalt 7 zwischen der Antriebsspindel 5 und der Schleudertrommel (bzw. einen mit der Trommel drehfest verbundenen Teil, hier ein Ring 8) von unten in die Schleudertrommel 2 und damit in deren Hydrauliksystem 9 eintritt (siehe hierzu den Pfeil W, der den Eintritt des Steuerfluids veranschaulicht), welches zum Betätigen eines Kolbenschiebers nach Art der Fig. 2 oder ggf. auch zum Betätigen anderer fluidbetätigter Einrichtungen dienen kann. Die radiale Erstreckung des Ringspaltes 7 zwischen der Antriebsspindel 5 und der Trommel bzw. hier dem Ring 8 beträgt nur 0,5 mm bis 10 mm, vorzugsweise 1 mm bis 4 mm.1 terminates in a separator according to the invention, which may otherwise be constructed, for example, analogously to FIG. 2 or otherwise, the at least one supply line 14 for control fluid radially in front of the drive spindle 5 in an outlet region, in particular an outlet nozzle 6, which is aligned in that the control fluid is injected at an acute angle at an angle α relative to the axis of rotation against the drive spindle 5, which lies between 0 ° and 90 °, in particular between 20 ° and 70 °. The outlet nozzle 6 is aligned such that at least a portion of the exiting from the outlet nozzle 6 control fluid through an annular gap 7 between the drive spindle 5 and the centrifugal drum (or rotatably connected to the drum part, here a ring 8) from below into the centrifugal drum 2 and thus in the hydraulic system 9 enters (see the arrow W, which illustrates the entry of the control fluid), which can serve to actuate a piston valve of the type of Fig. 2 or possibly also for actuating other fluidbetätigter devices. The radial extent of the annular gap 7 between the drive spindle 5 and the drum or here the ring 8 is only 0.5 mm to 10 mm, preferably 1 mm to 4 mm.
Die Austrittsdüse 6 ist vorzugsweise derart ausgelegt ist, dass sie einen gerichteten Strahl relativ konstanten Durchmessers erzeugt, der sich im Wesentlichen nicht auffächert, d.h. dass der Strahl im Auftreffbereich möglichst einen Durchmesser aufweisen sollte, der geringer ist als der Spindeldurchmesser, insbesondere geringer als 50%, ganz besonders bevorzugt geringer als 35% des Spindeldurchmessers.The exit nozzle 6 is preferably designed to produce a directional, relatively constant diameter jet that does not fan out substantially, i. that the beam in the area of impact should preferably have a diameter which is less than the spindle diameter, in particular less than 50%, very particularly preferably less than 35% of the spindle diameter.
Unterhalb der Austrittsdüse 6 ist ein Schleuderring 10 auf der Antriebsspindel 5 angeordnet.Below the outlet nozzle 6, a slinger 10 is disposed on the drive spindle 5.
Dieser Schleuderring 10 weist hier eine konische Form auf. Er ragt hier radial über eine ebenfalls konisch geformte Abdeckung 11 am Maschinengestell 12 hinweg, die sich im Betrieb nicht mitdreht und bis auf einen Ringspalt 13 an die Antriebsspindel 5 heranragt. Eine gestufte Form des Schleuderringes wie auch der Abdeckung wäre e- benfalls denkbar (z.B. gestuft zylindrisch).This slinger 10 has a conical shape here. It protrudes radially over a likewise conically shaped cover 11 on the machine frame 12 away, which does not rotate during operation and up to an annular gap 13 to the drive spindle 5 heranragt. A stepped shape of the slinger as well as the cover would also be conceivable (e.g., stepped cylindrical).
Hierdurch wird der Bereich unterhalb des Trommelraumes (d.h. der Raum, welcher direkt die Schleudertrommel umgibt) effektiv und einfach labyrinthdichtungsartig vor einem Eindringen von Verunreinigungen, insbesondere vor einem Eindringen von abtropfendem Steuerfluid, geschützt. Damit ergibt sich insbesondere ein Schutz des Antriebsbereichs unterhalb der Abdeckung 11. Bei einer Drehung der Antriebsspindel 5 spritzt der Schleuderring Flüssigkeit nach außen, so dass er im Betrieb besonders wirksam ist. As a result, the area below the drum space (ie the space which directly surrounds the centrifugal drum) effectively and simply labyrinth seal-like protected against the ingress of contaminants, in particular against the ingress of dripping control fluid. This results in particular a protection of the drive area below the cover 11. Upon rotation of the drive spindle. 5 The slinger injects liquid to the outside, so that it is particularly effective during operation.
Bezugszeichenreference numeral
Separator 1Separator 1
Schleudertrommel 2Centrifugal drum 2
Feststoffaustragsöffnung(en) 3Solid discharge opening (s) 3
Kolbenschieber 4Piston valve 4
Antriebsspindel 5Drive spindle 5
Austrittsdüse 6Outlet nozzle 6
Ringspalt 7Annular gap 7
Ring 8Ring 8
Steuerfluidleitungssystem 9Control fluid conduit system 9
Schleuderring 10Slinger 10
Abdeckblech 11Cover plate 11
Maschinengestell 12Machine frame 12
Ringspalt 13Annular gap 13
Steuerfluidzuleitung 14Control fluid supply 14
Winkel αAngle α
Drehachse D Rotation axis D

Claims

Ansprüche claims
1. Zentrifuge, insbesondere Separator, (1), der folgendes aufweist: a. eine drehbare Schleudertrommel (2) mit vertikaler Drehachse (D), b. eine drehbare Antriebsspindel (5) für die Schleudertrommel (2), c. wenigstens eine Zuleitung (14) für ein Steuerfluid in ein Hydrauliksystem im Inneren der Schleudertrommel, dadurch gekennzeichnet, dass d. die Zuleitung (14) für das Steuerfluid radial vor der Antriebsspindel (5) in einem Austrittsbereich (6) mündet, der derart ausgerichtet und angeordnet ist, dass das austretende Steuerfluid derart direkt gegen die Antriebsspindel (5) spritzbar ist, dass ein Teil des Steuerfluids durch einen Spalt (7) zwischen der Antriebsspindel (5) und der Schleudertrommel (2) oder einem mit der Schleudertrommel (2) drehfest verbundenen Teil (8) in das Hydrauliksystem (9) im Inneren der Trommel eintritt.A centrifuge, in particular a separator, (1), comprising: a. a rotatable centrifugal drum (2) with a vertical axis of rotation (D), b. a rotatable drive spindle (5) for the centrifugal drum (2), c. at least one supply line (14) for a control fluid into a hydraulic system inside the centrifugal drum, characterized in that d. the supply line (14) for the control fluid opens radially in front of the drive spindle (5) in an exit region (6) which is aligned and arranged such that the exiting control fluid can be sprayed directly against the drive spindle (5) such that a part of the control fluid through a gap (7) between the drive spindle (5) and the centrifugal drum (2) or with the centrifugal drum (2) rotatably connected part (8) enters the hydraulic system (9) inside the drum.
2. Zentrifuge, insbesondere Separator, nach Anspruch 1, dadurch gekennzeichnet, dass der Austrittsbereich als Austrittsdüse (6) ausgelegt ist.2. Centrifuge, in particular separator, according to claim 1, characterized in that the outlet region is designed as an outlet nozzle (6).
3. Zentrifuge, insbesondere Separator, nach Anspruch 1, dadurch gekennzeichnet, dass die Austrittsdüse (6) derart ausgelegt ist, dass sie einen gerichteten Strahl erzeugt.3. centrifuge, in particular separator, according to claim 1, characterized in that the outlet nozzle (6) is designed such that it generates a directed beam.
4. Zentrifuge, insbesondere Separator, nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Austrittsdüse (6) derart ausgerichtet ist, dass das Steuerfluid in einem Winkel α relativ zu Drehachse (D) gegen die Antriebsspindel (5) im Bereich des Spaltes (7) gespritzt wird, der zwischen 0° und 90° liegt.4. centrifuge, in particular separator, according to claim 1 or 2, characterized in that the outlet nozzle (6) is aligned such that the control fluid at an angle α relative to the axis of rotation (D) against the drive spindle (5) in the region of the gap ( 7), which is between 0 ° and 90 °.
5. Zentrifuge, insbesondere Separator, nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der Winkel α relativ zu Drehachse (D) zwischen 20° und 70° liegt. 5. centrifuge, in particular separator, according to one of the preceding claims, characterized in that the angle α relative to the axis of rotation (D) is between 20 ° and 70 °.
6. Zentrifuge, insbesondere Separator, nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Antriebsspindel (5) in dem Bereich, in welchem der Fluidstrahl auf sie auftritt einen konstanten Durchmesser oder einen leicht konischen Durchmesser ohne Durchmessersprünge aufweist.6. Centrifuge, in particular separator, according to one of the preceding claims, characterized in that the drive spindle (5) in the region in which the fluid jet occurs on it has a constant diameter or a slightly conical diameter without diameter jumps.
7. Zentrifuge, insbesondere Separator, nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die radiale Spaltbreite des Spaltes (7) zwischen 0, 5 und 10 mm, vorzugsweise zwischen 1 bis 4 mm liegt.7. centrifuge, in particular separator, according to one of the preceding claims, characterized in that the radial gap width of the gap (7) between 0, 5 and 10 mm, preferably between 1 to 4 mm.
8. Zentrifuge, insbesondere Separator, nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass unterhalb der Austrittsdüse (6) ein Schleuderring (10) auf der Antriebsspindel (5) angeordnet ist.8. centrifuge, in particular separator, according to one of the preceding claims, characterized in that below the outlet nozzle (6) a slinger (10) on the drive spindle (5) is arranged.
9. Zentrifuge, insbesondere Separator, nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der Schleuderring (10) eine konische Form aufweist.9. centrifuge, in particular separator, according to one of the preceding claims, characterized in that the slinger (10) has a conical shape.
10. Zentrifuge, insbesondere Separator, nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der Schleuderring (10) eine gestufte Form aufweist.10. Centrifuge, in particular separator, according to one of the preceding claims, characterized in that the slinger (10) has a stepped shape.
11. Zentrifuge, insbesondere Separator, nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der Schleuderring (10) radial über eine Abdeckung (11) am Maschinengestell (12) vorsteht, welche sich im Betrieb nicht mitdreht und bis auf einen Ringspalt (13) an die Antriebsspindel (5) heranragt.11. centrifuge, in particular separator, according to one of the preceding claims, characterized in that the slinger (10) projects radially beyond a cover (11) on the machine frame (12) which does not rotate during operation and except for an annular gap (13) to the drive spindle (5) protrudes.
12. Zentrifuge, insbesondere Separator, nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Abdeckung (11) konisch ausgestaltet ist. 12. Centrifuge, in particular separator, according to one of the preceding claims, characterized in that the cover (11) is conical.
13. Zentrifuge, insbesondere Separator, nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Abdeckung (11) gestuft ausgestaltet ist.13. Centrifuge, in particular separator, according to one of the preceding claims, characterized in that the cover (11) is designed stepped.
14. Zentrifuge, insbesondere Separator, nach einem der vorstehenden Ansprüche, gekennzeichnet durch einen hydraulisch mittels dem Steuerfluid betätigten Entleerungsmechanismus, dem wenigstens eine von dem Steuerfluid beaufschlagbare Steuerkammer zugeordnet ist, die von der Zuleitung (14) für das Steuerfluid beaufschlagbar ist. 14. centrifuge, in particular separator, according to one of the preceding claims, characterized by a hydraulically actuated by the control fluid discharge mechanism, which is assigned at least one acted upon by the control fluid control chamber, which is acted upon by the supply line (14) for the control fluid.
EP07730080.4A 2006-06-14 2007-06-12 Centrifuge, in particular separator, having a feed line for control fluid Active EP2026909B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202006009331U DE202006009331U1 (en) 2006-06-14 2006-06-14 Centrifuge especially for use in separation processes has mechanism for emptying the control fluid comprising an exit zone injecting the fluid against the drive screw with part exiting through a gap
PCT/EP2007/055751 WO2007144339A1 (en) 2006-06-14 2007-06-12 Centrifuge, in particular separator, having a feed line for control fluid

Publications (2)

Publication Number Publication Date
EP2026909A1 true EP2026909A1 (en) 2009-02-25
EP2026909B1 EP2026909B1 (en) 2018-12-12

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EP07730080.4A Active EP2026909B1 (en) 2006-06-14 2007-06-12 Centrifuge, in particular separator, having a feed line for control fluid

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US (1) US8123667B2 (en)
EP (1) EP2026909B1 (en)
JP (1) JP5061402B2 (en)
CN (1) CN101356010B (en)
DE (1) DE202006009331U1 (en)
WO (1) WO2007144339A1 (en)

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Also Published As

Publication number Publication date
US8123667B2 (en) 2012-02-28
US20090270238A1 (en) 2009-10-29
CN101356010A (en) 2009-01-28
WO2007144339A1 (en) 2007-12-21
CN101356010B (en) 2012-07-04
JP2009539594A (en) 2009-11-19
EP2026909B1 (en) 2018-12-12
DE202006009331U1 (en) 2006-08-10
JP5061402B2 (en) 2012-10-31

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