EP1407821A2 - Centrifuge with emergency-stop-system comprising solid particle feeding - Google Patents

Centrifuge with emergency-stop-system comprising solid particle feeding Download PDF

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Publication number
EP1407821A2
EP1407821A2 EP03020652A EP03020652A EP1407821A2 EP 1407821 A2 EP1407821 A2 EP 1407821A2 EP 03020652 A EP03020652 A EP 03020652A EP 03020652 A EP03020652 A EP 03020652A EP 1407821 A2 EP1407821 A2 EP 1407821A2
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EP
European Patent Office
Prior art keywords
centrifuge
particles
balls
emergency stop
centrifuge according
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
EP03020652A
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German (de)
French (fr)
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EP1407821A3 (en
EP1407821B1 (en
Inventor
Reinhard Dipl.-Ing. Moss
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
Westfalia Separator GmbH
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Publication date
Application filed by Westfalia Separator GmbH filed Critical Westfalia Separator GmbH
Publication of EP1407821A2 publication Critical patent/EP1407821A2/en
Publication of EP1407821A3 publication Critical patent/EP1407821A3/en
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Publication of EP1407821B1 publication Critical patent/EP1407821B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B11/00—Feeding, charging, or discharging bowls
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B7/00—Elements of centrifuges
    • B04B7/02—Casings; Lids
    • B04B7/06—Safety devices ; Regulating

Definitions

  • the invention relates to a centrifuge, in particular a separator with a vertical axis of rotation, which has a centrifugal drum with a feed pipe for centrifuged material and is provided with outlet nozzles, the centrifugal drum being an emergency stop system is connected upstream.
  • the invention further relates to a method for implementation an emergency stop function of a centrifuge.
  • a generic centrifuge in the form of a separator with a vertical axis of rotation according to the preamble of claim 1, DE 651 907 C is known.
  • a separator from Switch off manually or automatically Unbalance can result from one-sided clogging individual nozzles are caused, because in these areas the solid is no longer is carried out.
  • the centrifugal drum may continue to rotate for several minutes until it comes to a standstill, after activating the emergency stop function, the liquid is fed into the centrifugal drum until it stops, so that the negative effect of the unbalance is not caused by the empty running of the nozzle drum (Loss of balancing fluid) intensified.
  • the emergency stop tank must therefore hold up to 10m 3 of water, for example.
  • the invention solves this problem with regard to the centrifuge by the object of claim 1 and with respect to the method by the subject of the claim 12th
  • the emergency stop system has a supply system for particles, in particular Bullets in the centrifugal drum.
  • the invention also provides a method to implement an emergency stop function of a centrifuge, in which in the Centrifugal drum particles, in particular balls, are passed through the outlet nozzles clog.
  • the drum In the event of an emergency stop, the drum is separated by the solid particles or particles, in particular Balls stopped briefly with little or no water added or "shutdown". Since the centrifugal drum can no longer run empty, reduces the risk of "increasing unbalance forces" which occurs when an existing one Imbalance the centrifugal drum is emptied at high speed, as this the influence of the unbalance on the centrifugal drum is increased because the balancing The effect of the product or water is eliminated.
  • the solids discharge is particularly preferably provided with outlet nozzles and the balls have a larger diameter than the outlet nozzles.
  • the container with the balls can be much smaller, especially in this variant be dimensioned and is also cheaper than the water tank of the State of the art, since only so many balls are necessary that the outlet nozzles get clogged.
  • the centrifugal drum must be opened after the emergency stop system has been activated to remove the particles, especially spheres. This opening is but in the event of an emergency stop due to imbalance i. generally required anyway, so that in Usually no additional effort by removing the balls from the centrifugal drum arises.
  • the particles, in particular spheres, unite have at least 5% larger diameter than the outlet nozzles.
  • the particles in particular spheres, can be made of rubber or plastic or else advantageously to avoid hygiene problems or the like from dried and possibly pressed solid of the centrifuged material to be processed.
  • the particles are preferably introduced into the centrifugal drum under pressure.
  • Fig. 1 shows a centrifuge designed as a separator 1 with a vertical axis of rotation, which a centrifugal drum 2 - a nozzle drum - having a hood 3 is surrounded.
  • the centrifugal drum 2 here has one guided into the centrifugal drum 2 from above Supply pipe 4 for centrifuged goods, which opens into a distributor 5, from which the Spin material is passed into the centrifugal chamber 6 of the centrifugal drum 2.
  • a supply line from below through the spindle into a distributor is also conceivable.
  • the spindle acts as an inlet pipe.
  • the solids discharge is realized through the outlet nozzles 7, which are distributed around the circumference of the centrifugal drum 2 (or e.g. in one Piston slide can be formed) and through which the solid in one Solids catcher 8 and from there is passed into a discharge channel 9.
  • the Liquid outlet is provided here with a peeling disc 10, which in a Derivation 11 opens.
  • a feed line 12 is connected upstream of the feed pipe 4, which is above the centrifugal drum 2 is arranged.
  • the feed line opens a branch pipe 13, which with a Valve 14 is provided - the valve 14 is thus upstream of the supply pipe - and the end facing away from the supply line 13 into a container 15 for receiving of particles, especially spheres 16, e.g. made of rubber, which one have a larger diameter than the outlet nozzles 7.
  • spheres 16 e.g. made of rubber
  • valve 14 opened so that the balls 16 (e.g. by means of water pressure or a Piston - under pressure from the container 15 through the branch pipe 13 with the valve 14 - e.g.
  • a prestressed container 15 is also conceivable (e.g. by means of a air operated piston or the like). The particular advantage is that the Function is retained even in the event of a power failure.
  • the balls can also be in the container float in a carrier liquid such as water to feed it into the separator to facilitate.
  • centrifugal drum 2 Since the centrifugal drum 2 can no longer run empty in this state, the Reduces the risk of "rising unbalance forces", which occurs when an existing one Imbalance, the centrifugal drum 2 is emptied at high speed, as this the influence of the unbalance on the centrifugal drum 2 is increased.
  • the container 15 with the balls 16 can be dimensioned much smaller and is in this respect also cheaper than the water tank of the prior art.

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  • Centrifugal Separators (AREA)

Abstract

Centrifuge, especially a separator (1) with a vertical axis of rotation, comprises a centrifuge drum (2) (nozzle drum) provided with a feed pipe (4) for the material to be centrifuged and with outlet nozzles (7). An emergency shutdown system arranged upstream of the centrifuge drum has a system (17) for feeding particles, especially balls (16), into the centrifuge drum. An Independent claim is also included for a process for producing an emergency shutdown function of the above centrifuge in which particles, especially balls, are fed into the centrifuge drum in an emergency to block the outlet nozzles. Preferred Features: The balls are made of rubber or plastic and have a greater diameter than the outlet nozzles and a greater specific gravity than the liquid phase of the material to be centrifuged.

Description

Die Erfindung betrifft eine Zentrifuge, insbesondere Separator mit vertikaler Drehachse, welche eine Schleudertrommel aufweist, die mit einem Zuleitungsrohr für Schleudergut sowie mit Auslassdüsen versehen ist, wobei der Schleudertrommel ein Not-Aus-System vorgeschaltet ist. Die Erfindung betrifft ferner ein Verfahren zur Realisierung einer Not-Aus-Funktion einer Zentrifuge.The invention relates to a centrifuge, in particular a separator with a vertical axis of rotation, which has a centrifugal drum with a feed pipe for centrifuged material and is provided with outlet nozzles, the centrifugal drum being an emergency stop system is connected upstream. The invention further relates to a method for implementation an emergency stop function of a centrifuge.

Eine gattungsgemäße Zentrifuge in Form eines Separators mit vertikaler Drehachse nach dem Oberbegriff des Anspruches 1 ist der DE 651 907 C bekannt.A generic centrifuge in the form of a separator with a vertical axis of rotation according to the preamble of claim 1, DE 651 907 C is known.

Die DE 33 20 152, die gattungsfremd ist, zeigt ein Rückschlagventil mit einer an einer Feder angeordneten Kugel.DE 33 20 152, which is foreign to the genus, shows a check valve with one on one Spring arranged ball.

Aus der DE 2 046 274 A ist es ferner bekannt, im Notfall bei größerer Unwucht Auslaßöffnungen einer Zentrifuge zu verschließen.From DE 2 046 274 A it is also known, in an emergency with larger imbalance, outlet openings a centrifuge.

Es kann z.B. infolge des Auftritts von Unwuchten notwendig sein, einen Separator von Hand oder automatisch abzuschalten. Unwuchten können durch einseitiges Verstopfen einzelner Düsen verursacht werden, da in diesen Bereichen der Feststoff nicht mehr ausgetragen wird. Bekannt ist z.B. eine als Separator mit vertikaler Drehachse ausgebildete Zentrifuge mit einer Düsentrommel, oberhalb welcher zur Realisierung eines Not-Aus-Systems ein in den Zulauf des Separators mündender Not-Aus-Behälter zur Aufnahme einer Flüssigkeit wie Wasser angeordnet ist.For example, due to the occurrence of unbalance, a separator from Switch off manually or automatically. Unbalance can result from one-sided clogging individual nozzles are caused, because in these areas the solid is no longer is carried out. It is known e.g. one designed as a separator with a vertical axis of rotation Centrifuge with a nozzle drum, above which to implement a Emergency stop system an emergency stop container opening into the inlet of the separator Intake of a liquid such as water is arranged.

Im Not-Aus-Fall wird der Produktzulauf in der Regel gestoppt und auf Wasser umgeschaltet, um Verluste zu vermeiden.In the event of an emergency stop, the product feed is usually stopped and switched to water, to avoid losses.

Da sich die Schleudertrommel bis zu ihrem Stillstand u.U. noch minutenlang weiterdreht, wird nach dem Aktivieren der Not-Aus-Funktion noch so lange die Flüssigkeit in die Schleudertrommel geleitet, bis diese stillsteht, damit sich die negative Auswirkung der Unwucht nicht durch das Leerlaufen der Düsentrommel (Verlust der ausgleichenden Flüssigkeit) noch verstärkt. Der Not-Aus-Behälter muss daher z.B. bis zu 10m3 Wasser aufnehmen.Since the centrifugal drum may continue to rotate for several minutes until it comes to a standstill, after activating the emergency stop function, the liquid is fed into the centrifugal drum until it stops, so that the negative effect of the unbalance is not caused by the empty running of the nozzle drum (Loss of balancing fluid) intensified. The emergency stop tank must therefore hold up to 10m 3 of water, for example.

Nachteilig sind insofern insbesondere der relativ große Platzbedarf des Not-Aus-Behälters und dessen relativ hohe Kosten.In this respect, the relatively large space requirement of the emergency stop container is particularly disadvantageous and its relatively high cost.

Es ist die Aufgabe der Erfindung, diese Probleme zu verringern.It is the object of the invention to reduce these problems.

Die Erfindung löst diese Aufgabe in Hinsicht auf die Zentrifuge durch den Gegenstand des Anspruchs 1 und in Hinsicht auf das Verfahren durch den Gegenstand des Anspruchs 12.The invention solves this problem with regard to the centrifuge by the object of claim 1 and with respect to the method by the subject of the claim 12th

Vorteilhafte Ausgestaltungen sind den Unteransprüchen zu entnehmen.Advantageous configurations can be found in the subclaims.

Nach der Erfindung weist das Not-Aus-System ein Zuführsystem für Teilchen, insbesondere Kugeln, in die Schleudertrommel auf. Die Erfindung schafft ferner ein Verfahren zur Realisierung einer Not-Aus-Funktion einer Zentrifuge, bei dem in die Schleudertrommel Teilchen, insbesondere Kugeln, geleitet werden, welche die Auslassdüsen verstopfen. According to the invention, the emergency stop system has a supply system for particles, in particular Bullets in the centrifugal drum. The invention also provides a method to implement an emergency stop function of a centrifuge, in which in the Centrifugal drum particles, in particular balls, are passed through the outlet nozzles clog.

Im Not-Aus-Fall wird die Trommel durch die festen Teilchen bzw. Partikel, insbesondere Kugeln, ohne oder nur mit geringer weiterer Wasserzugabe kurzfristig gestoppt bzw. "heruntergefahren". Da die Schleudertrommel nicht mehr leer laufen kann, wird die Gefahr "steigender Unwuchtkräfte" verringert, welche auftritt, wenn bei einer bestehenden Unwucht die Schleudertrommel bei hoher Drehzahl entleert wird, da dies den Einfluss der Unwucht auf die Schleudertrommel verstärkt, weil die ausgleichende Wirkung des Produktes oder Wassers entfällt.In the event of an emergency stop, the drum is separated by the solid particles or particles, in particular Balls stopped briefly with little or no water added or "shutdown". Since the centrifugal drum can no longer run empty, reduces the risk of "increasing unbalance forces" which occurs when an existing one Imbalance the centrifugal drum is emptied at high speed, as this the influence of the unbalance on the centrifugal drum is increased because the balancing The effect of the product or water is eliminated.

Besonders bevorzugt ist der Feststoffaustrag mit Auslassdüsen versehen und die Kugeln weisen einen größeren Durchmesser als die Auslassdüsen auf.The solids discharge is particularly preferably provided with outlet nozzles and the balls have a larger diameter than the outlet nozzles.

Der Behälter mit den Kugeln kann insbesondere nach dieser Variante sehr viel kleiner dimensioniert werden und ist insofern auch kostengünstiger als der Wasserbehälter des Standes der Technik, da nur so viele Kugeln notwendig sind, daß die Auslassdüsen verstopft werden.The container with the balls can be much smaller, especially in this variant be dimensioned and is also cheaper than the water tank of the State of the art, since only so many balls are necessary that the outlet nozzles get clogged.

Zwar muss die Schleudertrommel nach einer Aktivierung des Not-Aus-Systems geöffnet werden, um die Teilchen, insbesondere Kugeln, zu entfernen. Dieses Öffnen ist aber im Not-Aus-Fall infolge von Unwuchten i. allg. sowieso erforderlich, so daß im Regelfall kein Mehraufwand durch das Entfernern der Kugeln aus der Schleudertrommel entsteht.The centrifugal drum must be opened after the emergency stop system has been activated to remove the particles, especially spheres. This opening is but in the event of an emergency stop due to imbalance i. generally required anyway, so that in Usually no additional effort by removing the balls from the centrifugal drum arises.

Als vorteilhaft hat es sich herausgestellt, wenn die Teilchen, insbesondere Kugeln einen um wenigstens 5% größeren Durchmesser als die Auslassdüsen aufweisen.It has proven to be advantageous if the particles, in particular spheres, unite have at least 5% larger diameter than the outlet nozzles.

Die Teilchen, insbesondere Kugeln können aus Gummi oder Kunststoff oder aber vorteilhaft zur Vermeidung von Hygieneproblemen oder dergleichen aus getrocknetem und ggf. gepresstem Feststoff des zu verarbeitenden Schleudergutes bestehen.The particles, in particular spheres, can be made of rubber or plastic or else advantageously to avoid hygiene problems or the like from dried and possibly pressed solid of the centrifuged material to be processed.

Bevorzugt werden die Teilchen unter Druck in die Schleudertrommel eingeleitet. The particles are preferably introduced into the centrifugal drum under pressure.

Nachfolgend wird die Erfindung anhand von Ausführungsbeispielen unter Bezug auf die Zeichnung näher beschrieben. Es zeigt:

Fig. 1
einen erfindungsgemäßen Separator.
The invention is described in more detail below using exemplary embodiments with reference to the drawing. It shows:
Fig. 1
a separator according to the invention.

Fig. 1 zeigt eine als Separator 1 mit vertikaler Drehachse ausgebildete Zentrifuge, welche eine Schleudertrommel 2 - eine Düsentrommel - aufweist, die von einer Haube 3 umgeben ist.Fig. 1 shows a centrifuge designed as a separator 1 with a vertical axis of rotation, which a centrifugal drum 2 - a nozzle drum - having a hood 3 is surrounded.

Die Schleudertrommel 2 weist hier ein von oben in die Schleudertrommel 2 geführtes Zuleitungsrohr 4 für Schleudergut auf, das in einen Verteiler 5 mündet, aus dem das Schleudergut in den Schleuderraum 6 der Schleudertrommel 2 geleitet wird. Alternativ ist auch eine Zuleitung von unten durch die Spindel in einen Verteiler denkbar. Die Spindel fungiert in diesem Fall als Zulaufrohr.The centrifugal drum 2 here has one guided into the centrifugal drum 2 from above Supply pipe 4 for centrifuged goods, which opens into a distributor 5, from which the Spin material is passed into the centrifugal chamber 6 of the centrifugal drum 2. alternative a supply line from below through the spindle into a distributor is also conceivable. The In this case, the spindle acts as an inlet pipe.

Zur Ableitung des Schleudergutes aus der Düsentrommel 2 ist wenigstens ein Feststoffaustrag für eine festere Phase und wenigstens ein Flüssigkeitsaustrag für eine flüssigere Phase vorgesehen. Der Feststoffaustrag wird durch die Auslassdüsen 7 realisiert, welche am Umfang der Schleudertrommel 2 verteilt sind (oder die z.B. in einem Kolbenschieber ausgebildet sein können) und durch die der Feststoff in einen Feststoffänger 8 und von dort in einen Ableitungskanal 9 geleitet wird. Der Flüssigkeitsauslaß ist dagegen hier mit einer Schälscheibe 10 versehen, welche in eine Ableitung 11 mündet.To discharge the centrifuged material from the nozzle drum 2 there is at least one solids discharge for a more solid phase and at least one liquid discharge for a more liquid one Phase provided. The solids discharge is realized through the outlet nozzles 7, which are distributed around the circumference of the centrifugal drum 2 (or e.g. in one Piston slide can be formed) and through which the solid in one Solids catcher 8 and from there is passed into a discharge channel 9. The Liquid outlet, on the other hand, is provided here with a peeling disc 10, which in a Derivation 11 opens.

Dem Zuleitungsrohr 4 ist eine Zuleitung 12 vorgeschaltet, die oberhalb der Schleudertrommel 2 angeordnet ist. In die Zuleitung mündet ein Zweigrohr 13, das mit einem Ventil 14 versehen ist - das Ventil 14 ist damit dem Zuleitungsrohr vorgeschaltet - und das an seinem von der Zuleitung 13 abgewandten Ende in einen Behälter 15 zur Aufnahme von Teilchen, insbesondere Kugeln 16, z.B. aus Gummi, mündet, welche einen größeren Durchmesser aufweisen als die Auslassdüsen 7. Auf diese Weise wird ohne größeren konstruktiven Aufwand als Not-Aus-System in Form eines Zuleitungssystems 17 für Teilchen in die Schleudertrommel 2 realisiert. A feed line 12 is connected upstream of the feed pipe 4, which is above the centrifugal drum 2 is arranged. In the feed line opens a branch pipe 13, which with a Valve 14 is provided - the valve 14 is thus upstream of the supply pipe - and the end facing away from the supply line 13 into a container 15 for receiving of particles, especially spheres 16, e.g. made of rubber, which one have a larger diameter than the outlet nozzles 7. In this way, without greater design effort than an emergency stop system in the form of a supply system 17 realized for particles in the centrifugal drum 2.

Im Notfall - d.h. beim Anliegen eines "Not-Aus-Signals" oder bei einer Notbetätigung von Hand z.B. aufgrund einer registrierten Unwucht der Schleudertrommel 2 - wird das Ventil 14 geöffnet, so daß die Kugeln 16 (z.B. mittels Wasserdruck oder eines Kolbens - unter Druck aus dem Behälter 15 durch das Zweigrohr 13 mit dem Ventil 14 - z.B. ein Normaly-Open-Ventil - in die Zuleitung 12 und von dort in das Zuleitungsrohr 4 gedrückt bzw. mitgeschwemmt werden, bis sie schließlich durch den Verteiler 5 in den Schleuderraum eintreten, wo sie aufgrund ihres geeignet bestimmten "größeren" spezifischen Gewichtes nach außen geschleudert werden, so daß sie sich vor den Auslassdüsen 7 anlagern und diese verstopfen, so daß die Schleudertrommel 2 ohne oder nur mit geringer weiterer Wasserzugabe auslaufen bzw. "heruntergefahren" werden kann. Denkbar ist auch ein vorgespannter Behälter 15 (z.B. mittels eines druckluftbetätigten Kolbens oder dergleichen). Dabei ist der besondere Vorteil, daß die Funktion auch bei Stromausfall erhalten bleibt. Die Kugeln können im Behälter auch in einer Trägerflüssigkeit wie Wasser schwimmen, um ihre Zuleitung in den Separator zu erleichtern.In an emergency - i.e. when an "emergency stop signal" is present or when an emergency operation is carried out by hand e.g. due to a registered unbalance of the centrifugal drum 2 - the valve 14 opened so that the balls 16 (e.g. by means of water pressure or a Piston - under pressure from the container 15 through the branch pipe 13 with the valve 14 - e.g. a normaly open valve - into the supply line 12 and from there into the supply pipe 4 pressed or washed away until they finally through the distributor 5 enter the centrifugal chamber, where they are determined based on their suitability "greater" specific gravity are thrown outwards, so that they are in front of the outlet nozzles 7 and block them so that the centrifugal drum 2 leak or "shut down" with little or no additional water added can be. A prestressed container 15 is also conceivable (e.g. by means of a air operated piston or the like). The particular advantage is that the Function is retained even in the event of a power failure. The balls can also be in the container float in a carrier liquid such as water to feed it into the separator to facilitate.

Da die Schleudertrommel 2 in diesem Zustand nicht mehr leer laufen kann, wird die Gefahr "steigender Unwuchtkräfte" verringert, welche auftritt, wenn bei einer bestehenden Unwucht die Schleudertrommel 2 bei hoher Drehzahl entleert wird, da dies den Einfluss der Unwucht auf die Schleudertrommel 2 verstärkt.Since the centrifugal drum 2 can no longer run empty in this state, the Reduces the risk of "rising unbalance forces", which occurs when an existing one Imbalance, the centrifugal drum 2 is emptied at high speed, as this the influence of the unbalance on the centrifugal drum 2 is increased.

Der Behälter 15 mit den Kugeln 16 kann sehr viel kleiner dimensioniert werden und ist insofern auch kostengünstiger als der Wasserbehälter des Standes der Technik. The container 15 with the balls 16 can be dimensioned much smaller and is in this respect also cheaper than the water tank of the prior art.

Bezugszeichenreference numeral

Separatorseparator
11
Schleudertrommelcentrifugal drum
22
HaubeHood
33
Zuleitungsrohrsupply pipe
44
Verteilerdistributor
55
Schleuderraumcentrifugal chamber
66
Auslassdüsenoutlet nozzles
77
FeststoffängerFeststoffänger
88th
AbleitungskanalWaterway
99
Schälscheibepeeling disc
1010
Ableitungderivation
1111
Zuleitungsupply
1212
Zweigrohrbranch pipe
1313
VentilValve
1414
Behältercontainer
1515
Kugelnroll
1616
Zuführsystemfeed
1717

Claims (13)

Zentrifuge, insbesondere Separator (1) mit vertikaler Drehachse, welche eine Schleudertrommel (2) - eine Düsentrommel - aufweist, die mit einem Zuleitungsrohr (4) für Schleudergut sowie mit Auslassdüsen (8) versehen ist, wobei der Schleudertrommel (2) ein Not-Aus-System vorgeschaltet ist, dadurch gekennzeichnet, daß das Not-Aus-System ein Zuführsystem (17) für Teilchen, insbesondere Kugeln (16), in die Schleudertrommel aufweist.Centrifuge, in particular separator (1) with a vertical axis of rotation, which has a centrifugal drum (2) - a nozzle drum - which is provided with a feed pipe (4) for centrifuged material and with outlet nozzles (8), the centrifugal drum (2) being an emergency Off system is connected upstream, characterized in that the emergency stop system has a feed system (17) for particles, in particular balls (16), into the centrifugal drum. Zentrifuge nach Anspruch 1, dadurch gekennzeichnet, daß die Kugeln (16) einen größeren Durchmesser als die Auslassdüsen (7) aufweisen.Centrifuge according to claim 1, characterized in that the balls (16) have a larger diameter than the outlet nozzles (7). Zentrifuge nach Anspruch 1, dadurch gekennzeichnet, daß die Kugeln (16) einen um wenigstens 5% größeren Durchmesser als die Auslassdüsen (7) aufweisen.Centrifuge according to Claim 1, characterized in that the balls (16) are at least 5% larger in diameter than the outlet nozzles (7). Zentrifuge nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Teilchen, insbesondere Kugeln (16) ein größeres spezifisches Gewicht als die Flüssigkeitsphase(n) des zu verarbeitenden Schleuderguts aufweisen.Centrifuge according to claim 1 or 2, characterized in that the particles, in particular balls (16), have a greater specific weight than the liquid phase (s) of the centrifuged material to be processed. Zentrifuge nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Teilchen, insbesondere Kugeln (16) aus Gummi oder Kunststoff bestehen.Centrifuge according to one of the preceding claims, characterized in that the particles, in particular balls (16) consist of rubber or plastic. Zentrifuge nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Teilchen, insbesondere Kugeln (16) aus getrocknetem Feststoff bestehen..Centrifuge according to one of the preceding claims, characterized in that the particles, in particular balls (16), consist of dried solid. Zentrifuge nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß das Zuführsystem einen Not-Aus-Behälter (15) zur Aufnahme der Kugeln (16) aufweist. Centrifuge according to one of the preceding claims, characterized in that the feed system has an emergency stop container (15) for receiving the balls (16). Zentrifuge nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Teilchen, insbesondere Kugeln im Not-Aus-Behälter (15) in einer Trägerflüssigkeit aufgenommen sind.Centrifuge according to one of the preceding claims, characterized in that the particles, in particular balls in the emergency stop container (15), are held in a carrier liquid. Zentrifuge nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß der Not-Aus-Behälter (15) als vorgespannter Behälter ausgebildet ist.Centrifuge according to one of the preceding claims, characterized in that the emergency stop container (15) is designed as a prestressed container. Zentrifuge nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß dem Zuleitungsrohr (4) ein Ventil (14) vorgeschaltet ist.Centrifuge according to one of the preceding claims, characterized in that a valve (14) is connected upstream of the feed pipe (4). Zentrifuge nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß das Ventil (14) ein Normaly-Open-Ventil ist.Centrifuge according to one of the preceding claims, characterized in that the valve (14) is a normaly-open valve. Verfahren zur Realisierung einer Not-Aus-Funktion einer Zentrifuge, insbesondere nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß in die Schleudertrommel (2) im Not-Aus-Fall Teilchen, insbesondere Kugeln (16), geleitet werden, welche die Auslassdüsen (7) verstopfen.Method for realizing an emergency stop function of a centrifuge, in particular according to one of the preceding claims, characterized in that particles, in particular balls (16), are passed into the centrifugal drum (2) in an emergency stop, which particles discharge the outlet nozzles ( 7) clog. Verfahren nach Anspruch 12, dadurch gekennzeichnet, daß die Teilchen unter Druck in die Schleudertrommel (2) eingeleitet werden.A method according to claim 12, characterized in that the particles are introduced into the centrifugal drum (2) under pressure.
EP03020652A 2002-10-11 2003-09-11 Centrifuge with emergency-stop-system comprising solid particle feeding Expired - Fee Related EP1407821B1 (en)

Applications Claiming Priority (2)

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DE10247646 2002-10-11
DE10247646A DE10247646B4 (en) 2002-10-11 2002-10-11 Centrifuge with emergency stop system

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EP1407821A2 true EP1407821A2 (en) 2004-04-14
EP1407821A3 EP1407821A3 (en) 2005-09-21
EP1407821B1 EP1407821B1 (en) 2007-11-14

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EP (1) EP1407821B1 (en)
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DE10247646A1 (en) 2004-04-22
US7056272B2 (en) 2006-06-06
EP1407821A3 (en) 2005-09-21
US20040072666A1 (en) 2004-04-15
JP2004276013A (en) 2004-10-07
EP1407821B1 (en) 2007-11-14
DE50308589D1 (en) 2007-12-27
DE10247646B4 (en) 2004-08-19

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