WO1981001113A1 - Centrifugal machine - Google Patents

Centrifugal machine Download PDF

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Publication number
WO1981001113A1
WO1981001113A1 PCT/DE1979/000122 DE7900122W WO8101113A1 WO 1981001113 A1 WO1981001113 A1 WO 1981001113A1 DE 7900122 W DE7900122 W DE 7900122W WO 8101113 A1 WO8101113 A1 WO 8101113A1
Authority
WO
WIPO (PCT)
Prior art keywords
drum
centrifuge
halves
centrifuge according
drum halves
Prior art date
Application number
PCT/DE1979/000122
Other languages
German (de)
French (fr)
Inventor
O Wimmer
Original Assignee
O Wimmer
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 O Wimmer filed Critical O Wimmer
Priority to PCT/DE1979/000122 priority Critical patent/WO1981001113A1/en
Priority to JP80500655A priority patent/JPS56501352A/ja
Publication of WO1981001113A1 publication Critical patent/WO1981001113A1/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
    • B04B1/02—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles without inserted separating walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B7/00—Elements of centrifuges
    • B04B7/08—Rotary bowls
    • B04B7/12—Inserts, e.g. armouring plates
    • B04B7/16—Sieves or filters

Definitions

  • the invention relates to a centrifuge, in particular a tubular cone centrifuge, for clarifying liquids and for thickening sludge, the centrifuge drum of which consists of two drum halves and an axially displaceable tube connecting the drum halves, with the centrifugal material being fed axially.
  • the invention has for its object to improve the centrifuge of the type mentioned in such a way that an increase in the solids concentration can be achieved.
  • This design makes it possible to reduce the size of the drum interior during the run of the centrifuge, preferably towards the end of the treatment period, and thus to compress the centrifuged material so that clear liquid or with a very low solids concentration is released inward into the overflow or inlet can then be removed in the usual way. This increases the solids concentration in accordance with the volume reduction.
  • Figure 1 shows a cross section of a tubular cone centrifuge and Figure 2 shows a cross section of a double cone centrifuge.
  • the tubular cone centrifuge of Figure 1 consists of two axially separated drum halves 11, 12 which are rotatable with the displacement body 20. Both drum halves are connected by a tube 13 which is closed at one end and is axially displaceable by a double-acting hydraulic cylinder 18. The dry centrifugal material in the drum can be thrown off by axially displacing this tube 13.
  • One drum half 12 is axially displaceable by a hydraulic cylinder 19 from its initial position, which it assumes when the drum of the centrifuge is filled, against the other, fixed drum half 12, so that the drum interior can be reduced.
  • the centrifuged material is channeled through a channel 15
  • the interior of the drum is subjected to the centrifugal force of the centrifuge, so that the solids are deposited radially on the outside and the liquid phase or clear phase over a Outlet 16 can be derived.
  • a filter can be arranged on a displacement body 20 arranged in the interior of the drum, via which the clear phase reaches the outlet 16.
  • the axial displacement of the drum half 12 makes it possible to compress the centrifugal material located radially on the outside, so that there is clear liquid radially inwards and the solids concentration of the centrifugal material located in the interior of the drum is thereby increased.
  • the displaceable drum half 12 is expediently designed such that it closes via the displacement body 20 into the inlet opening into the centrifuge drum during the adjustment to reduce the interior of the drum, so that in the final phase of operation no centrifugal material gets into the drum.
  • a sieve or filter is expediently arranged on the displacement body 20, at least in the area of the outlet, which, in addition to the filter effect, also has the purpose, after a certain operating time, of causing an increase in pressure in the inlet which can be used for control purposes of the centrifuge.
  • FIG. 2 shows the application of the principle of reducing the drum interior to a double-cone centrifuge or a separator.
  • the centrifuge in turn has two drum halves 11, 12 with a vertical axis, the drum half 12 being displaceable relative to the drum half 11 in order to open the centrifuge.
  • the drum half 12 has a cylindrical projection 21, in which a piston 22 is slidably arranged to reduce the interior of the drum.

Landscapes

  • Centrifugal Separators (AREA)

Abstract

A centrifugal machine, particularly with a single body, is used for clarifying liquids and thickening sludges. The drum of the centrifuge is comprised of two drum halves (11, 12) and an axially moving pipe (13), said pipe connecting drum halves; the supply (15) is provided axially. At least one portion of at least one of the drum halves is axially movable with respect to the other for the purposes of reducing the inner space of the drum during operation of the centrifuge.

Description

Zentrifuge centrifuge
Die Erfindung betrifft eine Zentrifuge, insbesondere Rohrkegelzentrifuge, zum Klären von Flüssigkeiten und zum Eindicken von Schlamm, deren Zentrifugentrommel aus zwei Trommelhälften und einem die Trommelhälften verbindenden, axial verschiebbaren Rohr besteht, mit axialer Zuführung des Schleudergutes.The invention relates to a centrifuge, in particular a tubular cone centrifuge, for clarifying liquids and for thickening sludge, the centrifuge drum of which consists of two drum halves and an axially displaceable tube connecting the drum halves, with the centrifugal material being fed axially.
Obwohl sich bei Rohrkegelzentrifugen gegenüber normalen Zentrifugen eine gute Feststoffkonzentration erreichen läßt, ist diese immer noch deutlich geringer als zum Beispiel bei Filterpressen. Dies ist darauf zurückzuführen, daß in Zentrifugen erfahrungsgemäß das Schleudergut nur begrenzt eingedickt werden kann und der Feststoff radial zur Mitte dünnflüssiger wird.Although a good solids concentration can be achieved with tube cone centrifuges compared to normal centrifuges, this is still significantly lower than, for example, with filter presses. This is due to the fact that experience shows that centrifuges can only thicken the centrifuge to a limited extent and that the solid becomes thinner radially towards the center.
Außerdem setzt nach Füllung der Zentrifuge nach einer bestimmten Laufzeit Eintrübung ein und es erfolgt keine Feststoffabtrennung mehr.In addition, after the centrifuge has been filled, cloudiness sets in after a certain runtime and there is no longer any separation of solids.
Der Erfindung liegt die Aufgabe zugrunde, die Zentrifuge der eingangs genannten Gattung derart zu verbessern, daß eine Erhöhung der Feststoffkonzentration erreicht werden kann.The invention has for its object to improve the centrifuge of the type mentioned in such a way that an increase in the solids concentration can be achieved.
Gelöst wird diese Aufgabe gemäß der Erfindung dadurch, daß wenigstens ein Teil wenigstens einer der Trommelhälften gegenüber der anderen zur Verkleinerung des Trommelinnen raumes während des Lau es der Zentrifuge axial verschiebbar ist.This object is achieved according to the invention in that at least a part of at least one of the drum halves compared to the other for reducing the inside of the drum space during the run of the centrifuge is axially displaceable.
Durch diese Ausbildung ist es möglich, während des Laufes der Zentrifuge, vorzugsweise gegen Ende der Behandlungsdauer, den Trommelinnenraum zu verkleinern und damit das Schleudergut zusammenzupressen, so daß klare Flüssigkeit bzw. mit sehr geringer Feststoffkonzentration nach innen in den über oder Zulauf abgegeben wird, die dann in üblicher Weise abgeführt werden kann. Dadurch wird die Feststoffkonzentration entsprechend der Volumenverkleinerung größer.This design makes it possible to reduce the size of the drum interior during the run of the centrifuge, preferably towards the end of the treatment period, and thus to compress the centrifuged material so that clear liquid or with a very low solids concentration is released inward into the overflow or inlet can then be removed in the usual way. This increases the solids concentration in accordance with the volume reduction.
Die Erfindung wird nachstehend anhand der Figuren 1 und 2 bei spielsweise erläutert. Es zeigt:The invention is explained below with reference to Figures 1 and 2 for example. It shows:
Figur 1 einen Querschnitt einer Rohrkegelzentrifuge und Figur 2 einen Querschnitt einer Doppelkegelzentrifuge.Figure 1 shows a cross section of a tubular cone centrifuge and Figure 2 shows a cross section of a double cone centrifuge.
Die Rohrkegelzentrifuge der Figur 1 besteht aus zwei axial ge trennten Trommelhälften 11, 12, die mit dem Verdrängungskörpe 20 drehbar sind. Beide Trommelhälften sind durch ein Rohr 13 verbunden, das am einen Ende geschlossen ist und durch einen doppelt wirkenden Hydraulikzylinder 18 axial verschiebbar ist Durch axiale Verschiebung dieses Rohres 13 kann das in der Trommel befindliche trockene Schleudergut abgeschleudert werden.The tubular cone centrifuge of Figure 1 consists of two axially separated drum halves 11, 12 which are rotatable with the displacement body 20. Both drum halves are connected by a tube 13 which is closed at one end and is axially displaceable by a double-acting hydraulic cylinder 18. The dry centrifugal material in the drum can be thrown off by axially displacing this tube 13.
Die eine Trommelhälfte 12 ist durch einen Hydraulikzylinder19 aus ihrer Ausgangsstellung, die sie einnimmt, wenn die Trommel der Zentrifuge gefüllt ist, gegen die andere, feststehende Trcmmelhälfte 12 axial verschiebbar, so daß der Trom melinnenraum verkleinert werden kann.One drum half 12 is axially displaceable by a hydraulic cylinder 19 from its initial position, which it assumes when the drum of the centrifuge is filled, against the other, fixed drum half 12, so that the drum interior can be reduced.
Im Betrieb wird das Schleudergut über einen Kanal 15 dem eineIn operation, the centrifuged material is channeled through a channel 15
Ende des Trommelinnenraumes zugeführt. Nach Einführen in denEnd of the drum interior fed. After insertion into the
Trommelinnenraum wird das Schleudergut der Zentrifugalkraft der Zentrifuge unterworfen, so daß sich die Feststoffe radial außen ablagern und die flüssige Phase bzw. Klarphase über einen Auslaß 16 abgeleitet werden kann. Auf einem im Trommelinnenraum angeordneten Verdrängungskörper 20 kann ein Filter angeordnet sein, über das die Klarphase in den Auslaß 16 gelangt. Durch die axiale Verschiebung der Trommelhälfte 12 ist es möglich, das radial außen befindliche Schleudergut zusammenzupressen, so daß es radial nach innen klare Flüssigkeit aoggibt und dadurch die Feststoffkonzentration des im Trommelinnenraum befindlichen Schleuderguts erhöht wird. Zweckmäßigerweise ist die verschiebbare Trommalhälfte 12 so ausgebildet, daß sie über den Verdrängungskörper 20 in die Zentrifugentrommel mündenden Zulauf bei der Verstellung zur Verkleingung des Trommelinnenraumes verschließt, so daß in der Endphase des Betriebs kein Schleudergut mehr in die Trommel gelangt. Auf dem Verdrängungskörper 20 ist zweckmäßigerweise wenigstens im Bereich des Auslaufs ein Sieb oder Filter angeordnet, das außer der Filterwirkung auch den Zweck hat, nach einer bestimmten Betriebsdauer im Zulauf einen Druckanstieg zu bewirken, der für Steuerungszwecke der Zentrifuge verwendet werden kann.The interior of the drum is subjected to the centrifugal force of the centrifuge, so that the solids are deposited radially on the outside and the liquid phase or clear phase over a Outlet 16 can be derived. A filter can be arranged on a displacement body 20 arranged in the interior of the drum, via which the clear phase reaches the outlet 16. The axial displacement of the drum half 12 makes it possible to compress the centrifugal material located radially on the outside, so that there is clear liquid radially inwards and the solids concentration of the centrifugal material located in the interior of the drum is thereby increased. The displaceable drum half 12 is expediently designed such that it closes via the displacement body 20 into the inlet opening into the centrifuge drum during the adjustment to reduce the interior of the drum, so that in the final phase of operation no centrifugal material gets into the drum. A sieve or filter is expediently arranged on the displacement body 20, at least in the area of the outlet, which, in addition to the filter effect, also has the purpose, after a certain operating time, of causing an increase in pressure in the inlet which can be used for control purposes of the centrifuge.
Figur 2 zeigt die Anwendung des Prinzips der Verkleinerung des Trommelinnenraumes auf eine Doppelkegelzentrifuge oder einen Separator. Die Zentrifuge hat wiederum zwei Trcmmelhälften 11, 12, mit vertikaler Achse, wobei die Trommelhälfte 12 in üblicher Weise gegenüber der Trommelhälfte 11 zum Öffnen der Zentrifuge verschiebbar ist. Die Trommelhälfte 12 hat einen zylindrischen Ansatz 21, in dem ein Kolben 22 zur Verkleinerung des Trommelinnenraumes verschiebbar angeordnet ist. Figure 2 shows the application of the principle of reducing the drum interior to a double-cone centrifuge or a separator. The centrifuge in turn has two drum halves 11, 12 with a vertical axis, the drum half 12 being displaceable relative to the drum half 11 in order to open the centrifuge. The drum half 12 has a cylindrical projection 21, in which a piston 22 is slidably arranged to reduce the interior of the drum.

Claims

Patentansprüche: Claims:
1. Zentrifuge, insbesondere Rohrkegelzentrifuge, zum Klären von Flüssigkeiten und zum Eindicken von Schlamm, deren Zentrifugentrommel aus zwei Trommelhälften und einem die Trommelhälften verbindenden, axial verschiebbaren Rohr besteht, mit axialer Zuführung des Schleudergutes, dadurch gekennzeichnet, daß wenigstens ein Teil wenigstens einer der Trommelhälften (11, 12) gegenüber der anderen zur Verkleinerung des Trommelinnenraumes während des Laufes der Zentrifuge axial verschiebbar ist.1. Centrifuge, in particular a tubular cone centrifuge, for clarifying liquids and for thickening sludge, the centrifuge drum of which consists of two drum halves and an axially displaceable tube connecting the drum halves, with axial feeding of the centrifuged material, characterized in that at least part of at least one of the drum halves (11, 12) is axially displaceable relative to the other for reducing the drum interior while the centrifuge is running.
2. Zentrifuge nach Anspruch 1, dadurch gekennzeichnet, daß die axiale Verschiebung hydraulisch, pneumatisch, elektrisch oder mechanisch erfolgt.2. Centrifuge according to claim 1, characterized in that the axial displacement is carried out hydraulically, pneumatically, electrically or mechanically.
3. Zentrifuge nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß eine oder beide Trommelhälften (11, 12) scheibenförmig ausgebildet sind.3. Centrifuge according to claim 1 or 2, characterized in that one or both drum halves (11, 12) are disc-shaped.
4. Zentrifuge nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Trommelhälften (11, 12) kegelförmig ausgebildet sind.4. Centrifuge according to claim 1 or 2, characterized in that the drum halves (11, 12) are conical.
5. Zentrifuge nach Anspruch 4, dadurch gekennzeichnet, daß wenigstens eine der kegelförmigen Trommelhälften einen zylindrischen Ansatz aufweist, in dem ein Kolben verschiebbar angeordnet ist.5. Centrifuge according to claim 4, characterized in that at least one of the conical drum halves has a cylindrical projection in which a piston is arranged displaceably.
6. Zentrifuge nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Zulauf in der Zentrifugentrommel durch die verschiebbare Trommelhälfte verschließbar ist.6. Centrifuge according to one of claims 1 to 5, characterized in that the inlet in the centrifuge drum can be closed by the displaceable drum half.
7. Zentrifuge nach Anspruch 6, dadurch gekennzeichnet, daß der Zulauf über einen Verdrängungskörper (20) in die Zentrifugentrommel mündet. 7. Centrifuge according to claim 6, characterized in that the inlet via a displacement body (20) opens into the centrifuge drum.
8. Zentrifuge nach Anspruch 7, dadurch gekennzeichnet, daß wenigstens im Auslaufbereich auf dem Verdrängungskörper (20) ein Sieb oder Filter angeordnet ist. 8. Centrifuge according to claim 7, characterized in that a sieve or filter is arranged at least in the outlet area on the displacement body (20).
PCT/DE1979/000122 1979-10-19 1979-10-19 Centrifugal machine WO1981001113A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/DE1979/000122 WO1981001113A1 (en) 1979-10-19 1979-10-19 Centrifugal machine
JP80500655A JPS56501352A (en) 1979-10-19 1979-10-19

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/DE1979/000122 WO1981001113A1 (en) 1979-10-19 1979-10-19 Centrifugal machine
WODE79/00122 1979-10-19

Publications (1)

Publication Number Publication Date
WO1981001113A1 true WO1981001113A1 (en) 1981-04-30

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ID=6699860

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1979/000122 WO1981001113A1 (en) 1979-10-19 1979-10-19 Centrifugal machine

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WO (1) WO1981001113A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR413517A (en) * 1910-03-11 1910-08-11 Claude Rene Pinette Device for purifying the washing water of coals or ores
US2360455A (en) * 1942-08-01 1944-10-17 Vilter Mfg Co Centrifuge
FR1362722A (en) * 1962-05-19 1964-06-05 Centrifuge with decanter and sieve
DE2737759A1 (en) * 1977-08-22 1979-03-01 Otto Wimmer Sludge-thickening centrifuge - has hollow shaft-mounted drum with cylindrical filter inside drum

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR413517A (en) * 1910-03-11 1910-08-11 Claude Rene Pinette Device for purifying the washing water of coals or ores
US2360455A (en) * 1942-08-01 1944-10-17 Vilter Mfg Co Centrifuge
FR1362722A (en) * 1962-05-19 1964-06-05 Centrifuge with decanter and sieve
DE2737759A1 (en) * 1977-08-22 1979-03-01 Otto Wimmer Sludge-thickening centrifuge - has hollow shaft-mounted drum with cylindrical filter inside drum

Also Published As

Publication number Publication date
JPS56501352A (en) 1981-09-24

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