EP2928613A2 - Outlet nozzle for a centrifuge drum - Google Patents

Outlet nozzle for a centrifuge drum

Info

Publication number
EP2928613A2
EP2928613A2 EP13814054.6A EP13814054A EP2928613A2 EP 2928613 A2 EP2928613 A2 EP 2928613A2 EP 13814054 A EP13814054 A EP 13814054A EP 2928613 A2 EP2928613 A2 EP 2928613A2
Authority
EP
European Patent Office
Prior art keywords
outlet
outlet channel
diameter
channel
nozzle
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
EP13814054.6A
Other languages
German (de)
French (fr)
Other versions
EP2928613B1 (en
Inventor
Wilfried Mackel
Jürgen TEIGELER
Volker Kassera
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 Mechanical Equipment 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 Mechanical Equipment GmbH filed Critical GEA Mechanical Equipment GmbH
Priority to EP19152074.1A priority Critical patent/EP3488934A1/en
Publication of EP2928613A2 publication Critical patent/EP2928613A2/en
Application granted granted Critical
Publication of EP2928613B1 publication Critical patent/EP2928613B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
    • 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
    • B04B1/12—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 continuous discharge
    • 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
    • B04B11/02—Continuous feeding or discharging; Control arrangements therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B5/00—Other centrifuges
    • B04B5/12—Centrifuges in which rotors other than bowls generate centrifugal effects in stationary containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/36—Outlets for discharging by overflow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B5/00—Other centrifuges
    • B04B5/12—Centrifuges in which rotors other than bowls generate centrifugal effects in stationary containers
    • B04B2005/125—Centrifuges in which rotors other than bowls generate centrifugal effects in stationary containers the rotors comprising separating walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter

Definitions

  • the invention relates to an outlet nozzle for a centrifuge drum according to the preamble of claim 1.
  • Discharge nozzles of the prior art are shown in DE 39 22 619 C1, DE 41 05 903 A1 and US Pat. No. 2,560,239.
  • a generic outlet nozzle is also known from DE 195 27 039 C1.
  • the diameter of the inlet opening of the outlet nozzle in the region of the nozzle body is either the same size as the diameter of the outlet channel or it is at most 50 percent larger or 50 percent smaller than the diameter of the outlet channel.
  • the inlet space widens steadily up to a largest diameter.
  • the diameter of the outlet channel in the nozzle stone initially tapers to a constriction and then widens conically in one of the variants of DE 195 27 039 C1 by an angle of at least 5 °.
  • the narrowest point of the outlet channel with respect to the cross section of the inlet opening itself is formed and it is envisaged that the cross section of the outlet channel on the - preferably total axial - length of the outlet in the outlet direction at any point - apart from a possibly ., at the inlet.
  • FIG. 1 shows a cross-section of an outlet nozzle according to the invention
  • Figure 2 is a schematic representation of a known separator drum.
  • Figure 2 shows a double conical separator drum 100 designed for continuous operation.
  • the separator drum 100 has a vertical axis of rotation.
  • a separator plate stack 300 of conical separator plates 400 is arranged in the centrifuge chamber 200.
  • the separation plates 400 are arranged on a distributor shaft 600.
  • a feed pipe 500 serves to feed a product to be processed into distribution channels 700.
  • the distribution channels 700 open into the centrifugal space 200, in which a clarification of the product of solids takes place and optionally optionally a separation into two or more liquid phases of different density.
  • For the derivation of the at least one liquid phase serve one or more processes 900 for liquid phases, which may be provided, for example with peeling discs.
  • the solids are ejected outwardly from the centrifugal drum 100 by circumferentially distributed outlet openings 800 preferably in the area of the largest circumference of the centrifugal drum.
  • an outlet nozzle 1 is inserted into the outlet openings 800.
  • a first preferred embodiment of the outlet nozzle 1 according to the invention is shown in FIG. 1.
  • the outlet nozzle 1 has a nozzle body 2 designed as a nozzle holder and a nozzle block 3 inserted into the nozzle body 2.
  • a vertically extending inlet channel 4 is formed and in the nozzle block 3, an axially extending outlet channel 7 is formed.
  • the axis of symmetry 5 of the inlet channel 4 and the axis of symmetry 6 of the outlet channel 7 of the nozzle block 3 are aligned at an angle to each other, wherein the axis enclosed by them sene angle is an obtuse angle "a", for which preferably the condition applies: 90 ° ⁇ a ⁇ 1 60 °.
  • the outlet channel 7 in the nozzle block 3 has an inlet opening 8 and a thereto in the outlet direction A by an axial distance z spaced outlet opening 1 0.
  • the outlet channel 7 widens from the inlet opening to the diameter of the outlet opening 10, i. the diameter of the outlet channel 7 in the nozzle block 3 increases from the inlet opening 8 to the outlet opening 1 0.
  • the cross section of the outlet channel 7 of the nozzle block 3 is thus formed by the inlet opening 8 of the nozzle block 3 itself, the cross section of the outlet opening 1 0 according to the invention is always greater than the cross section of the inlet opening 8 of the outlet channel 7 of the nozzle block.
  • the cross-section of the outlet channel 7 is reduced over the axial length of the outlet channel 7 in the outlet direction A at any point. This results in a reduced clogging tendency and improved beam focusing.
  • the nozzle block 3 is preferably a component which is rotationally symmetrical over its entire length, which simplifies its production compared to the generic state of the art. In the region of the inlet opening, it is preferably flat on its axial end face.
  • a solder 11 is preferably present between the nozzle body 2 and the nozzle block 3 in order to fasten the nozzle block to the nozzle body.
  • a seal in this area (which, for example, engages in an annular groove, not shown here) if the nozzle block 3 is intended to be detachable (if, for example, it is held in the nozzle body 2 by threads.)
  • Fig. 3 shows such a nozzle holder The nozzle block 3 may be screwed into the nozzle holder 2.
  • FIG 1 and 3 show solutions with a nozzle body 2 designed as a nozzle holder into which the nozzle block 3 is inserted
  • FIGS. 4 to 6 show solutions in which a nozzle block 3 is dispensed with Inlet channel 4 extending outlet channel 7 of FIG. 4 to 6 directly in the then one-piece nozzle body 2 itself formed (in which case a sufficient tough Material is used to make the nozzle body 2).
  • the outlet channel 7 widens in all embodiments over its axial length continuously or in sections. If a nozzle block 3 is present - FIG. 1 - it expands preferably conically over its axial length.
  • the outlet channel 7 preferably expands uniformly over its entire axial length. This is advantageous, but not mandatory.
  • the cross-section of the preferably circular cross-section outlet channel 7 can not increase uniformly over the axial length of the outlet channel 7 or in a first inner region with a length y (FIG. 3: nozzle body with nozzle stone, Fig. 4: nozzle body without nozzle stone) not, so that the diameter of the outlet channel 7 in this first region of the inlet opening over the axial distance y is constant (diameter D1), then what in the exit direction at this portion constant diameter D1 of the circular cross-section preferably outlet channel 7 of the widening outlet cone. 9 connects whose largest diameter D2 is greater than the diameter D1 (Fig. 3 to 6).
  • the outlet channel 7 may have a circumferential production radius R1 on the circumferential edge, preferably circular. This can be very sharp-edged (i.e., the radius R1 is negligibly small and can be set equal to zero) or rather slightly larger (preferably less than 3 mm, in particular less than 1 mm).
  • the production radius R1 is preferably dimensioned such that it extends over less than 10% of the axial extent z of the outlet channel 7. It is preferably advantageous in the region of the outlet channel 7, in which it has its smallest diameter D1.
  • the manufacturing radius R1 reduces wear at the inlet opening 8 of the outlet channel 7.
  • the production radius R1 is adjoined by a second radius R2 (widening in the outflow direction) which is such that a sharp-edged transition in the region of the transition from the production radius R1 to the widening cone 9 is avoided.
  • Seals 1 2 on the outer circumference of the nozzle body 2 seal the outlet nozzle 1 against the drum wall.
  • a thread 1 3 further allows a screwing of the nozzle body 2 in the drum wall or in the openings 800 in the drum wall. Also a bayonet lock or the like is conceivable.
  • the design of the outlet channel 7, preferably in the nozzle block 3, is particularly advantageous. Since the outlet channel 7 does not taper from the region of the inlet opening 8 to the region of the outlet opening 10, the outlet channel 7 extends from the inlet opening 8 to the outlet.
  • the angle of inclination ⁇ of the conical region 9 of the outlet channel 8 to the axis of symmetry 6 of the outlet channel 7 is 5 ° to 45 °, in particular 10 ° to 30 °, and particularly preferably 30 ° to 45 °. In this area, the tendency to blockage is significantly reduced.
  • the diameter of the outlet channel 7 increases over more than 50 percent, in particular more than 75 percent, of its axial length, whereby a particularly good operating behavior is achieved.
  • the inlet channel 4 does not widen conically as in the prior art but initially tapers uniformly to a constant diameter that extends over most of the axial length of the inlet channel or inlet channel 4.
  • no nozzle block 3 is provided in the nozzle body 2 but is formed integrally in the nozzle body itself, wherein it has the axially extending inlet channel 4 and the outlet channel 7 running at an obtuse angle to the inlet channel, which has the inlet opening 8 and the outlet opening 10 , wherein the diameter of the outlet channel 7 increases in sections, such that the narrowest in terms of the cross section of the outlet channel 7 is formed by the inlet opening 8 itself, wherein the cross section of the outlet channel 7 over the axial length of the outlet channel 7 in the outlet direction A reduced at any point.
  • a sufficiently hard material chosen can be dispensed with the nozzle stone of harder material than the material of the nozzle holder so.
  • the absolute nozzle diameter D2 at the outlet opening is preferably significantly larger than the diameter D1 at the inlet opening 8, in particular more than twice as large.

Landscapes

  • Centrifugal Separators (AREA)
  • Nozzles (AREA)
  • Paper (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

An outlet nozzle for centrifuge drums comprising a nozzle body (2) which has an inlet channel (4) extending axially therein and an outlet channel (7) extending at an obtuse angle to the inlet channel, wherein the outlet channel has an inlet opening (8) and an outlet opening (10), wherein the diameter of the outlet channel (7) increases at least in certain portions, is distinguished in that the point on the outlet channel (7) which is narrowest in terms of the cross section is formed by the inlet opening (8) itself and in that the cross section of the outlet channel (7) is not reduced at any point over the axial length of the outlet channel (7) in the outlet direction (A).

Description

Auslassdüse für eine Zentrifugentrommel  Outlet nozzle for a centrifuge drum
Die Erfindung bezieht sich auf eine Auslassdüse für eine Zentrifugentrommel nach dem Oberbegriff des Anspruchs 1 . The invention relates to an outlet nozzle for a centrifuge drum according to the preamble of claim 1.
Auslassdüsen des Standes der Technik zeigen die DE 39 22 619 C1 , die DE 41 05 903 A1 und die US 2 560 239. Discharge nozzles of the prior art are shown in DE 39 22 619 C1, DE 41 05 903 A1 and US Pat. No. 2,560,239.
Eine gattungsgemäße Auslassdüse ist zudem aus der DE 195 27 039 C1 bekannt. Nach der Lehre der DE 195 27 039 C1 ist der Durchmesser der Eintrittsöffnung der Auslassdüse im Bereich des Düsenkörpers entweder genauso groß wie der Durchmesser des Auslasskanals oder er ist maximal 50 Prozent größer oder um 50 Prozent kleiner als der Durchmesser des Auslasskanals. Darüber hinaus weitet sich der Einlaufraum bis zu einem größten Durchmesser stetig auf. Der Durchmesser des Auslasskanals im Düsenstein verjüngt sich zunächst bis zu einer Engstelle und weitet sich dann bei einer der Varianten der DE 195 27 039 C1 um einen Winkel von wenigstens 5° konisch auf. A generic outlet nozzle is also known from DE 195 27 039 C1. According to the teaching of DE 195 27 039 C1, the diameter of the inlet opening of the outlet nozzle in the region of the nozzle body is either the same size as the diameter of the outlet channel or it is at most 50 percent larger or 50 percent smaller than the diameter of the outlet channel. In addition, the inlet space widens steadily up to a largest diameter. The diameter of the outlet channel in the nozzle stone initially tapers to a constriction and then widens conically in one of the variants of DE 195 27 039 C1 by an angle of at least 5 °.
Diese Auslassdüse hat sich zwar an sich durchaus bewährt. This outlet nozzle has indeed proven itself.
Es ist aber dennoch wünschenswert, die Verstopfungsneigung der Auslassdüse weiter zu verringern sowie den Austrittsstrahl positiv zu beeinflussen. Die Lösung dieses Problems ist die Aufgabe der Erfindung. Die Erfindung löst diese Aufgabe durch den Gegenstand des Anspruchs 1 . However, it is still desirable to further reduce the tendency of the outlet nozzle to clog and to positively influence the outlet jet. The solution to this problem is the object of the invention. The invention solves this problem by the subject matter of claim 1.
Danach wird die in Hinsicht auf den Querschnitt engste Stelle des Auslasskanals von der Eintrittsöffnung selbst gebildet und es ist vorgesehen, dass sich der Querschnitt des Auslasskanals über die - vorzugsweise gesamte axiale - Länge des Auslasska- nals in Austrittsrichtung an keiner Stelle - abgesehen von einem ggf. vorgesehenen Fertigungsradius am Einlass - verringert. Thereafter, the narrowest point of the outlet channel with respect to the cross section of the inlet opening itself is formed and it is envisaged that the cross section of the outlet channel on the - preferably total axial - length of the outlet in the outlet direction at any point - apart from a possibly ., at the inlet.
Derart wird die Verstopfungsneigung und Düsenstrahlausbildung durch einfach umzusetzende Veränderung der Ausgestaltung des Auslasskanals des Düsensteins verringert. Thus, the clogging tendency and nozzle jet formation is reduced by simply changing the configuration of the outlet channel of the nozzle block.
Vorteilhafte Ausgestaltungen sind den Unteransprüchen zu entnehmen. Nachfolgend wird die Erfindung anhand eines Ausführungsbeispiels unter Bezug auf die Figuren näher beschrieben. Es zeigen: Advantageous embodiments can be found in the dependent claims. The invention will be described in more detail with reference to an embodiment with reference to the figures. Show it:
Figur 1 einen Querschnitt einer erfindungsgemäßen Auslassdüse; FIG. 1 shows a cross-section of an outlet nozzle according to the invention;
Figur 2 eine schematische Darstellung einer bekannten Separatortrommel. Figure 2 is a schematic representation of a known separator drum.
Figur 3-6 Querschnitte weiterer erfindungsgemäßer Auslassdüsen mit und ohne Figure 3-6 cross sections of further inventive outlet nozzles with and without
Düsenstein;  Nozzle block;
Figur 2 zeigt eine doppelt-konische Separatortrommel 100, die für einen kontinuierlichen Betrieb ausgelegt ist. Figure 2 shows a double conical separator drum 100 designed for continuous operation.
Die Separatortrommel 100 weist eine vertikale Drehachse auf. In der konischen bzw. hier sogar doppelt-konischen Separatortrommel 100 ist im Schleuderraum 200 ein Trenntellerstapel 300 aus konischen Trenntellern 400 angeordnet. Die Trennteller 400 sind auf einem Verteilerschaft 600 angeordnet. Ein Zulaufrohr 500 dient zur Zuleitung eines zu verarbeitenden Produktes in Verteilerkanäle 700. Die Verteilerkanäle 700 münden in den Schleuderraum 200, in welchem eine Klärung des Produktes von Feststoffen erfolgt sowie ggf. optional eine Trennung in zwei oder mehr Flüssigkeitsphasen unterschiedlicher Dichte. Zur Ableitung der wenigstens einen Flüssigkeitsphase dienen ein oder mehrere Abläufe 900 für Flüssigkeitsphasen, die beispielsweise mit Schälscheiben versehen sein können. Die Feststoffe werden dagegen durch umfangsverteilte Austrittsöffnungen 800 vorzugsweise im Bereich des größten Umfangs der Schleudertrommel aus der Schleudertrommel 100 nach außen ausgestoßen. Hierzu wird in die Austrittsöffnungen 800 jeweils eine Auslassdüse 1 eingesetzt. Eine erste bevorzugte Ausführung der erfindungsgemäßen Auslassdüse 1 zeigt die Figur 1 . The separator drum 100 has a vertical axis of rotation. In the conical or here even double-conical separator drum 100, a separator plate stack 300 of conical separator plates 400 is arranged in the centrifuge chamber 200. The separation plates 400 are arranged on a distributor shaft 600. A feed pipe 500 serves to feed a product to be processed into distribution channels 700. The distribution channels 700 open into the centrifugal space 200, in which a clarification of the product of solids takes place and optionally optionally a separation into two or more liquid phases of different density. For the derivation of the at least one liquid phase serve one or more processes 900 for liquid phases, which may be provided, for example with peeling discs. In contrast, the solids are ejected outwardly from the centrifugal drum 100 by circumferentially distributed outlet openings 800 preferably in the area of the largest circumference of the centrifugal drum. For this purpose, an outlet nozzle 1 is inserted into the outlet openings 800. A first preferred embodiment of the outlet nozzle 1 according to the invention is shown in FIG. 1.
Die Auslassdüse 1 weist einen als Düsenhalter ausgebildeten Düsenkörper 2 und einen in den Düsenkörper 2 eingesetzten Düsenstein 3 auf. The outlet nozzle 1 has a nozzle body 2 designed as a nozzle holder and a nozzle block 3 inserted into the nozzle body 2.
Im Düsenkörper 2 ist ein vertikal verlaufender Einlaufkanal 4 ausgebildet und im Düsenstein 3 ist ein axial verlaufender Auslasskanal 7 ausgebildet. Die Symmetrieachse 5 des Einlaufkanals 4 und die Symmetrieachse 6 des Auslasskanals 7 des Düsensteins 3 sind winklig zueinander ausgerichtet, wobei der von ihnen eingeschlos- sene Winkel ein stumpfer Winkel„a" ist, für welchen vorzugsweise die Bedingung gilt: 90 ° < a < 1 60 °. In the nozzle body 2, a vertically extending inlet channel 4 is formed and in the nozzle block 3, an axially extending outlet channel 7 is formed. The axis of symmetry 5 of the inlet channel 4 and the axis of symmetry 6 of the outlet channel 7 of the nozzle block 3 are aligned at an angle to each other, wherein the axis enclosed by them sene angle is an obtuse angle "a", for which preferably the condition applies: 90 ° <a <1 60 °.
Der Auslasskanal 7 im Düsenstein 3 weist eine Eintrittsöffnung 8 und eine hierzu in Austrittsrichtung A um eine axiale Strecke z beabstandete Austrittsöffnung 1 0 auf. The outlet channel 7 in the nozzle block 3 has an inlet opening 8 and a thereto in the outlet direction A by an axial distance z spaced outlet opening 1 0.
Der Auslasskanal 7 weitet sich ausgehend von der Eintrittsöffnung bis zum Durchmesser der Austrittsöffnung 1 0 auf, d.h. der Durchmesser des Auslasskanals 7 im Düsenstein 3 vergrößert sich von der Eintrittsöffnung 8 zur Austrittsöffnung 1 0. The outlet channel 7 widens from the inlet opening to the diameter of the outlet opening 10, i. the diameter of the outlet channel 7 in the nozzle block 3 increases from the inlet opening 8 to the outlet opening 1 0.
Die in Hinsicht auf den Querschnitt engste Stelle des Auslasskanals 7 des Düsensteins 3 wird derart von der Eintrittsöffnung 8 des Düsensteins 3 selbst gebildet, wobei der Querschnitt der Austrittsöffnung 1 0 erfindungsgemäß stets größer ist als der Querschnitt der Eintrittsöffnung 8 des Auslasskanals 7 des Düsensteins 3. Vorzugs- weise verringert sich der Querschnitt des Auslasskanals 7 über die axiale Länge des Auslasskanals 7 in Austrittsrichtung A an keiner Stelle. Dies resultiert in einer verringerten Verstopfungsneigung und einer verbesserten Strahlbündelung. The narrowest point in terms of the cross section of the outlet channel 7 of the nozzle block 3 is thus formed by the inlet opening 8 of the nozzle block 3 itself, the cross section of the outlet opening 1 0 according to the invention is always greater than the cross section of the inlet opening 8 of the outlet channel 7 of the nozzle block. 3 Preferably, the cross-section of the outlet channel 7 is reduced over the axial length of the outlet channel 7 in the outlet direction A at any point. This results in a reduced clogging tendency and improved beam focusing.
Der Düsenstein 3 ist vorzugsweise ein über seine gesamte Länge rotationsymmetri- sches Bauteil, was seine Herstellung gegenüber dem gattungsgemäßen Stand der Technik vereinfacht. Im Bereich der Eintrittsöffnung ist er an seiner axialen Stirnseite vorzugsweise eben flach ausgebildet. The nozzle block 3 is preferably a component which is rotationally symmetrical over its entire length, which simplifies its production compared to the generic state of the art. In the region of the inlet opening, it is preferably flat on its axial end face.
Am Au ßenumfang des Düsensteins 3 ist vorzugsweise zwischen dem Düsenkörper 2 und dem Düsenstein 3 ein Lot 1 1 vorhanden, um den Düsenstein am Düsenkörper zu befestigen. Alternativ kann auch eine Dichtung in diesem Bereich vorgesehen sein (die beispielsweise in eine Ringnut eingreift, hier nicht dargestellt), wenn der Düsenstein 3 lösbar sein soll (wenn er z.B. über Gewinde im Düsenkörper 2 gehalten ist. Fig. 3 zeigt einen derartigen als Düsenhalter ausgebildeten Düsenkörper 2 mit Düsenstein 3 (ähnlich zu Fig. 1 ). Nach dem Ausführungsbeispiel der Fig.3 kann der Düsenstein 3 in den Düsenhalter 2 eingeschraubt sein. Dabei ist die Dichtung zwischen dem Au ßenumfang des Düsenkörpers 3 und dem Düsenhalter in Fig.3 nicht eingezeichnet. Die Fig. 1 und 3 zeigen dabei Lösungen mit einem als Düsenhalter ausgebildeten Düsenkörper 2, in den der Düsenstein 3 eingesetzt ist und die Fig. 4 bis 6 Lösungen, bei welchen auf einen Düsenstein 3 verzichtet wird. Stattdessen ist der stumpfwinklig zum Einlaufkanal 4 verlaufende Auslasskanal 7 nach Fig. 4 bis 6 direkt in dem dann einstückigen Düsenkörper 2 selbst ausgebildet (wobei dann ein genügend hartes Material zum Herstellen des Düsenkörpers 2 genutzt wird). Hierdurch können Bereiche, in welchen sich Verschmutzungen bilden können, nochmals reduziert werden. On the outer circumference of the nozzle block 3, a solder 11 is preferably present between the nozzle body 2 and the nozzle block 3 in order to fasten the nozzle block to the nozzle body. Alternatively, it is also possible to provide a seal in this area (which, for example, engages in an annular groove, not shown here) if the nozzle block 3 is intended to be detachable (if, for example, it is held in the nozzle body 2 by threads.) Fig. 3 shows such a nozzle holder The nozzle block 3 may be screwed into the nozzle holder 2. The seal between the outer circumference of the nozzle body 3 and the nozzle holder is shown in FIG 1 and 3 show solutions with a nozzle body 2 designed as a nozzle holder into which the nozzle block 3 is inserted, and FIGS. 4 to 6 show solutions in which a nozzle block 3 is dispensed with Inlet channel 4 extending outlet channel 7 of FIG. 4 to 6 directly in the then one-piece nozzle body 2 itself formed (in which case a sufficient tough Material is used to make the nozzle body 2). As a result, areas in which dirt can form, can be further reduced.
Der Auslasskanal 7 weitet bei sämtlichen Ausführungsbeispielen über seine axiale Länge durchgehend oder abschnittsweise auf. Ist ein Düsenstein 3 vorhanden - Fig. 1 - weitet er sich vorzugsweise über dessen axiale Länge konisch auf. The outlet channel 7 widens in all embodiments over its axial length continuously or in sections. If a nozzle block 3 is present - FIG. 1 - it expands preferably conically over its axial length.
Wie bereits erläutert, weitet sich der Auslasskanal 7 vorzugsweise über seine gesamte axiale Länge stetig gleichmäßig auf. Dies ist vorteilhaft, aber nicht zwingend erforderlich. Denn der Querschnitt des vorzugsweise im Querschnitt kreisrunden Auslasskanals 7 kann auch nicht gleichmäßig über die axiale Länge des Auslasskanals 7 zunehmen oder aber in einem ersten inneren Bereich mit einer Länge y (Fig. 3: Düsenkörper mit Düsenstein, Fig. 4: Düsenkörper ohne Düsenstein) nicht, so dass der Durchmesser des Auslasskanals 7 in diesem ersten Bereich der Eintrittsöffnung über die axiale Strecke y konstant ist (Durchmesser D1 ), woran sich dann in Austrittsrichtung an diesen Abschnitt konstanten Durchmesser D1 des vorzugsweise im Querschnitt kreisrunden Auslasskanals 7 der sich aufweitende Austrittskonus 9 anschließt, dessen größter Durchmesser D2 größer als der Durchmesser D1 ist (Fig. 3 bis 6). As already explained, the outlet channel 7 preferably expands uniformly over its entire axial length. This is advantageous, but not mandatory. For the cross-section of the preferably circular cross-section outlet channel 7 can not increase uniformly over the axial length of the outlet channel 7 or in a first inner region with a length y (FIG. 3: nozzle body with nozzle stone, Fig. 4: nozzle body without nozzle stone) not, so that the diameter of the outlet channel 7 in this first region of the inlet opening over the axial distance y is constant (diameter D1), then what in the exit direction at this portion constant diameter D1 of the circular cross-section preferably outlet channel 7 of the widening outlet cone. 9 connects whose largest diameter D2 is greater than the diameter D1 (Fig. 3 to 6).
Im Bereich der Eintrittsöffnung 8 kann der Auslasskanal 7 am - vorzugsweise kreisrunden - Umfangsrand einen umlaufenden Fertigungsradius R1 aufweisen. Dieser kann sehr scharkantig sein (d.h. der Radius R1 ist vernachlässigbar klein und kann gleich Null gesetzt werden) oder eher etwas größer (vorzugsweise kleiner 3 mm, ins- besondere kleiner 1 mm). Bevorzugt ist der Fertigungsradius R1 derart bemessen, dass er sich über weniger als 1 0 % der axialen Erstreckung z des Auslasskanals 7 erstreckt. Er geht vorzugsweise vorteilhaft in den Bereich des Austrittskanals 7 über, in welchem dieser seinen kleinsten Durchmesser D1 aufweist. Der Fertigungsradius R1 verringert den Verschlei ß an der Eintrittsöffnung 8 des Auslasskanals 7. In the region of the inlet opening 8, the outlet channel 7 may have a circumferential production radius R1 on the circumferential edge, preferably circular. This can be very sharp-edged (i.e., the radius R1 is negligibly small and can be set equal to zero) or rather slightly larger (preferably less than 3 mm, in particular less than 1 mm). The production radius R1 is preferably dimensioned such that it extends over less than 10% of the axial extent z of the outlet channel 7. It is preferably advantageous in the region of the outlet channel 7, in which it has its smallest diameter D1. The manufacturing radius R1 reduces wear at the inlet opening 8 of the outlet channel 7.
Nach Fig. 6 schließt sich an den Fertigungsradius R1 ein (in Abströmrichtung aufweitend ausgerichteter) zweiter Radius R2 an, der derart beschaffen ist, dass ein scharfkantiger Übergang im Bereich des Überganges von dem Fertigungsradius R1 zu dem sich aufweitenden Konus 9 vermieden wird.. According to FIG. 6, the production radius R1 is adjoined by a second radius R2 (widening in the outflow direction) which is such that a sharp-edged transition in the region of the transition from the production radius R1 to the widening cone 9 is avoided.
Dichtungen 1 2 am Au ßenumfang des Düsenkörpers 2 dichten die Auslassdüse 1 gegen die Trommelwand ab. Ein Gewinde 1 3 ermöglicht ferner ein Einschrauben des Düsenkörpers 2 in die Trommelwand bzw. in die Öffnungen 800 in der Trommelwand. Auch ein Bajonettverschluss oder ähnliches ist denkbar. Besonders vorteilhaft ist bei sämtlichen Ausführungsbeispielen die Ausgestaltung des Auslasskanals 7, vorzugsweise im Düsenstein 3. Da sich der Auslasskanal 7 vom Bereich der Eintrittsöffnung 8 bis zum Bereich der Austrittsöffnung 1 0 nirgends verjüngt sondern da sich der Auslasskanal 7 von der Eintrittsöffnung 8 bis zur Aus- trittsöffnung 1 0 - ggf. bis auf den erwähnten Fertigungsradius - durchgängig konisch aufweitet, wird gegenüber dem Stand der Technik eine deutlich verringerte Neigung zu Verstopfungen erzielt, insbesondere auch bei einer Änderung der Konsistenz des zu verarbeitenden Produktes. Vorzugsweise beträgt der Neigungswinkel ß des konischen Bereiches 9 des Auslasskanals 8 zur Symmetrieachse 6 des Austrittskanals 7 5 ° bis 45 °, insbesondere 10 ° bis 30 °, und besonders bevorzugt 30 ° bis 45 °. In diesem Bereich wird die Verstopfungsneigung besonders deutlich verringert. Vorzugsweise vergrößert sich der Durchmesser des Auslasskanals 7 über mehr als 50 Prozent, insbesondere mehr als 75 Prozent, seiner axialen Länge hinweg, wodurch ein besonders gutes Betriebsverhalten erreicht wird. Seals 1 2 on the outer circumference of the nozzle body 2 seal the outlet nozzle 1 against the drum wall. A thread 1 3 further allows a screwing of the nozzle body 2 in the drum wall or in the openings 800 in the drum wall. Also a bayonet lock or the like is conceivable. In all embodiments, the design of the outlet channel 7, preferably in the nozzle block 3, is particularly advantageous. Since the outlet channel 7 does not taper from the region of the inlet opening 8 to the region of the outlet opening 10, the outlet channel 7 extends from the inlet opening 8 to the outlet. outlet opening 1 0 - possibly to the mentioned production radius - consistently conical widening, compared to the prior art, a significantly reduced tendency to blockage is achieved, especially in a change in the consistency of the product to be processed. Preferably, the angle of inclination β of the conical region 9 of the outlet channel 8 to the axis of symmetry 6 of the outlet channel 7 is 5 ° to 45 °, in particular 10 ° to 30 °, and particularly preferably 30 ° to 45 °. In this area, the tendency to blockage is significantly reduced. Preferably, the diameter of the outlet channel 7 increases over more than 50 percent, in particular more than 75 percent, of its axial length, whereby a particularly good operating behavior is achieved.
Der Einlasskanal 4 weitet sich nicht wie im Stand der Technik konisch auf sondern er verjüngt sich zunächst gleichmäßig bis zu einem konstanten Durchmesser, der sich über größten Teil der axialen Länge des Einlasskanals bzw. Einlaufkanals 4 erstreckt. The inlet channel 4 does not widen conically as in the prior art but initially tapers uniformly to a constant diameter that extends over most of the axial length of the inlet channel or inlet channel 4.
Wie bereits erwähnt, ist nach Fig. 4 kein Düsenstein 3 im Düsenkörper 2 vorgesehen sondern ist im Düsenkörper selbst einstückig ausgebildet, wobei er den axial verlaufenden Einlaufkanal 4 und den stumpfwinklig zum Einlaufkanal verlaufenden Auslasskanal 7 aufweist, der die Eintrittsöffnung 8 und die Austrittsöffnung 1 0 aufweist, wobei sich der Durchmesser des Auslasskanals 7 abschnittsweise vergrößert, derart, dass die in Hinsicht auf den Querschnitt engste Stelle des Auslasskanals 7 von der Eintrittsöffnung 8 selbst gebildet wird, wobei sich der Querschnitt des Auslasskanals 7 über die axiale Länge des Auslasskanals 7 in Austrittsrichtung A an keiner Stelle verringert. Wird ein genügend hartes Material gewählt, kann derart auf den Düsenstein aus härterem Material als das Material des Düsenhalters verzichtet werden. Der absolute Düsendurchmesser D1 an der Eintrittsöffnung 8 hängt ab von der Konsistenz der Feststoffphase des zu verarbeitenden Produktes. Er wird im Versuch so gewählt, dass ein konstanter Austrittsstrom aus der Auslassdüse gebildet wird. Vorzugsweise gilt für den Durchmesser D1 : 0,5 mm <= D1 <= 5 mm. Vorzugsweise erfüllt das Verhältnis zwischen der axialen Länge y des Abschnitts des Austrittskanals mit konstantem Durchmesser und der gesamten axialen Länge z des Austrittskanals 7 folgende Bedingung erfüllt: y/z <= V2. Der absolute Düsendurchmesser D2 an der Austrittsöffnung ist vorzugsweise deutlich größer als der Durchmesser D1 an der Eintrittsöffnung 8, insbesondere mehr als zweimal so groß. As already mentioned, according to FIG. 4 no nozzle block 3 is provided in the nozzle body 2 but is formed integrally in the nozzle body itself, wherein it has the axially extending inlet channel 4 and the outlet channel 7 running at an obtuse angle to the inlet channel, which has the inlet opening 8 and the outlet opening 10 , wherein the diameter of the outlet channel 7 increases in sections, such that the narrowest in terms of the cross section of the outlet channel 7 is formed by the inlet opening 8 itself, wherein the cross section of the outlet channel 7 over the axial length of the outlet channel 7 in the outlet direction A reduced at any point. If a sufficiently hard material chosen, can be dispensed with the nozzle stone of harder material than the material of the nozzle holder so. The absolute nozzle diameter D1 at the inlet opening 8 depends on the consistency of the solid phase of the product to be processed. It is chosen in the experiment so that a constant outlet flow is formed from the outlet nozzle. Preferably, for the diameter D1: 0.5 mm <= D1 <= 5 mm. Preferably, the ratio between the axial length y of the portion of the outlet channel of constant diameter and the total axial length z of the outlet channel 7 satisfies the following condition: y / z <= V2. The absolute nozzle diameter D2 at the outlet opening is preferably significantly larger than the diameter D1 at the inlet opening 8, in particular more than twice as large.
Weiter bevorzugt erfüllt die axiale Länge z des Austrittskanals folgende Bedingung: 4 mm <= z <= 30 mm. Zudem ist es vorteilhaft, wenn das Verhältnis zwischen der axialen Länge y eines Abschnitts des Austrittskanals mit konstantem Durchmesser und diesem Durchmesser folgende Bedingung erfüllt: 1 <= y/ D1 <= 5. More preferably, the axial length z of the outlet channel fulfills the following condition: 4 mm <= z <= 30 mm. In addition, it is advantageous if the ratio between the axial length y of a section of the outlet channel having a constant diameter and this diameter satisfies the following condition: 1 <= y / D1 <= 5.
In diesen Bereichen wird jeweils ein besonders vorteilhaftes Betriebsverhalten er- reicht. In each of these areas, a particularly advantageous operating behavior is achieved.
Bezugszeichen reference numeral
Auslassdüse 1 Outlet nozzle 1
Düsenkörper 2 Nozzle body 2
Düsenstein 3  Nozzle stone 3
Einlaufkanal 4  Inlet channel 4
Symmetrieachse 5  Symmetry axis 5
Symmetrieachse 6  Symmetry axis 6
Auslasskanal 7 Outlet channel 7
Eintrittsöffnung 8  Inlet opening 8
Austrittskonus 9  Exit cone 9
Austrittsöffnung 10  Outlet opening 10
Lot 1 1  Lot 1 1
Dichtung 12 Seal 12
Gewinde 13  Thread 13
Schleudertrommel 100  Centrifugal drum 100
Schleuderraum 200  Centrifugal space 200
Trenntellerstapel 300  Separator plate stack 300
Trennteller 400 Separating plate 400
Zulaufrohr 500  Inlet pipe 500
Verteiler 600  Distributor 600
Verteilerkanal 700  Distribution channel 700
Öffnung in Trommelwand 800  Opening in drum wall 800
Ablauf 900 Process 900
Winkel α, ß Angle α, ß
Durchmesser D1 , D2  Diameter D1, D2
Radien R1 , R2  Radii R1, R2
Längen y, z Lengths y, z

Claims

Ansprüche claims
1 . Auslassdüse für Zentrifugentrommeln mit einem Düsenkörper (2), 1 . Outlet nozzle for centrifuge drums with a nozzle body (2),
a. der einen darin axial verlaufenden Einlaufkanal (4) und einen stumpfwinklig zum Einlaufkanal verlaufenden Auslasskanal (7) aufweist, b. wobei der Auslasskanal eine Eintrittsöffnung (8) und eine Austrittsöffnung (10) aufweist,  a. having an inlet channel (4) extending axially therein and an outlet channel (7) running at an obtuse angle to the inlet channel, b. wherein the outlet channel has an inlet opening (8) and an outlet opening (10),
c. wobei sich der Durchmesser des Auslasskanals (7) zumindest abschnittsweise vergrößert,  c. wherein the diameter of the outlet channel (7) increases at least in sections,
dadurch gekennzeichnet, dass  characterized in that
d. die in Hinsicht auf den Querschnitt engste Stelle des Auslasskanals (7) von der Eintrittsöffnung (8) selbst gebildet ist und dass sich der Querschnitt des Auslasskanals (7) über die axiale Länge des Auslasskanals (7) in Austrittsrichtung (A) an keiner Stelle verringert.  d. the narrowest point of the outlet channel (7) with respect to the cross section is formed by the inlet opening (8) itself and that the cross-section of the outlet channel (7) does not diminish over the axial length of the outlet channel (7) in the outlet direction (A) at any point ,
2. Auslassdüse nach Anspruch 1 , dadurch gekennzeichnet, dass am Umfangs- rand der Eintrittsöffnung (8) ein Fertigungsradius (R1 ) ausgebildet ist. 2. outlet nozzle according to claim 1, characterized in that on the peripheral edge of the inlet opening (8) has a manufacturing radius (R1) is formed.
3. Auslassdüse nach Anspruch 1 , dadurch gekennzeichnet, dass der Düsenkörper (2) als Düsenhalter ausgebildet ist und dass in den Düsenhalter ein Düsenstein (3) eingesetzt ist, der vorzugsweise aus härterem Material als der Düsenstein besteht und dass der Auslasskanal (7) mit der Eintrittsöffnung (8) und der Austrittsöffnung (10) im Düsenstein (3) ausgebildet ist und in diesem axial verläuft. 3. outlet nozzle according to claim 1, characterized in that the nozzle body (2) is designed as a nozzle holder and that in the nozzle holder, a nozzle block (3) is inserted, which preferably consists of a harder material than the nozzle stone and that the outlet channel (7) the inlet opening (8) and the outlet opening (10) in the nozzle block (3) is formed and extends axially therein.
4. Auslassdüse nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass sich der Durchmesser des im Querschnitt kreisrunden Auslasskanals (7) ausgehend von der Eintrittsöffnung (8) bis zur Austrittsöffnung (10) vergrößert. 4. outlet nozzle according to one of the preceding claims, characterized in that the diameter of the circular cross-section outlet channel (7), starting from the inlet opening (8) to the outlet opening (10) increases.
5. Auslassdüse nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass sich der Durchmesser des im Querschnitt kreisrunden Auslasskanals (7) ausgehend von der Eintrittsöffnung (8) in den Düsenstein (3) bis zur Austrittsöffnung (10) an jeder Stelle vergrößert. 5. outlet nozzle according to one of the preceding claims, characterized in that the diameter of the circular cross-section outlet channel (7), starting from the inlet opening (8) in the nozzle stone (3) to the outlet opening (10) increases at each point.
6. Auslassdüse nach Anspruch 5, dadurch gekennzeichnet, dass der Durchmesser des im Querschnitt kreisrunden Auslasskanals (7) ausgehend von der Eintrittsöffnung (8) zunächst über eine Strecke (y) einen konstanten Durchmesser (D1 ) aufweist und dass sich der Durchmesser sodann nach außen hin bis zu einem Durchmesser (D2) an der Austrittsöffnung (10) vergrößert. 6. outlet nozzle according to claim 5, characterized in that the diameter of the circular cross-section outlet channel (7) starting from the inlet opening (8) initially over a distance (y) has a constant diameter (D1) and that the diameter then after externally enlarged up to a diameter (D2) at the outlet opening (10).
7. Auslassdüse nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der Querschnitt des Auslasskanals (7) über seine gesamte axiale Länge (3) kreisrund ist. 7. outlet nozzle according to one of the preceding claims, characterized in that the cross section of the outlet channel (7) over its entire axial length (3) is circular.
8. Auslassdüse nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass sich der Durchmesser des Auslasskanals (7) ausgehend von der Eintrittsöffnung (8) in den Düsenstein (3) bis zur Austrittsöffnung (10) aus dem Düsenstein (3) konstant gleichmäßig vergrößert. 8. outlet nozzle according to one of the preceding claims, characterized in that the diameter of the outlet channel (7), starting from the inlet opening (8) in the nozzle stone (3) to the outlet opening (10) from the nozzle block (3) constantly uniformly increased.
9. Auslassdüse nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass für den Konizitätswinkel (ß) des Auslasskanals (7) zur Mittelachse (6) des Auslasskanals gilt: (ß) > 5°, vorzugsweise (ß) > 10° und besonders bevorzugt (ß) > 30°. 9. outlet nozzle according to one of the preceding claims, characterized in that for the Konizitätswinkel (ß) of the outlet channel (7) to the central axis (6) of the outlet channel applies: (ß)> 5 °, preferably (ß)> 10 ° and more preferably (ß)> 30 °.
10. Auslassdüse nach Anspruch 9, dadurch gekennzeichnet, dass für den Konizitätswinkel (ß) gilt: (ß) < 45°. 10. outlet nozzle according to claim 9, characterized in that for the Konizitätswinkel (ß) applies: (ß) <45 °.
1 1 . Auslassdüse nach einem vorstehenden Ansprüche, dadurch gekennzeichnet, dass sich der Durchmesser des Auslasskanals (7) über mehr als 50 Prozent, insbesondere mehr als 75 Prozent, seiner axialen Länge hinweg aufweitet. 1 1. Outlet nozzle according to one of the preceding claims, characterized in that the diameter of the outlet channel (7) widens over more than 50 percent, in particular more than 75 percent, of its axial length.
12. Auslassdüse nach einem vorstehenden Ansprüche, dadurch gekennzeichnet, dass für den kleinsten Durchmesser des Auslasskanals„D1 " - ggf. im An- schluss an einen Fertigungsradius (R1 ) - gilt: 0,5 mm <= D1 <= 5 mm. 12. outlet nozzle according to one of the preceding claims, characterized in that for the smallest diameter of the outlet channel "D1" - possibly following a manufacturing radius (R1) - applies: 0.5 mm <= D1 <= 5 mm.
13. Auslassdüse nach einem vorstehenden Ansprüche, dadurch gekennzeichnet, dass folgende Bedingung erfüllt ist: der größte Durchmesser des Auslasskanals D2 ist wenigstens zweimal so groß wie der kleinste Durchmesser D1 des Auslasskanals. 13. outlet nozzle according to one of the preceding claims, characterized in that the following condition is met: the largest diameter of the outlet channel D2 is at least twice as large as the smallest diameter D1 of the outlet channel.
14. Auslassdüse nach einem vorstehenden Ansprüche, dadurch gekennzeichnet, dass die axiale Länge Z des Austrittskanals (7) folgende Bedingung erfüllt: 4 mm <= z <= 30 mm. 14. outlet nozzle according to one of the preceding claims, characterized in that the axial length Z of the outlet channel (7) fulfills the following condition: 4 mm <= z <= 30 mm.
15. Auslassdüse nach einem vorstehenden Ansprüche, dadurch gekennzeichnet, dass das Verhältnis zwischen der axialen Länge y eines Abschnitts des Aus- trittskanals (7) mit konstantem Durchmesser und diesem Durchmesser folgende Bedingung erfüllt: 1 <= y/ D1 <= 5. 15. outlet nozzle according to one of the preceding claims, characterized in that the ratio between the axial length y of a portion of the Aus passage diameter (7) of constant diameter and diameter satisfies the following condition: 1 <= y / D1 <= 5.
16. Auslassdüse nach einem vorstehenden Ansprüche, dadurch gekennzeichnet, dass das Verhältnis zwischen der axialen Länge y eines Abschnitts des Austrittskanals (7) mit konstantem Durchmesser und der gesamten axialen Länge z des Austrittskanals (7) folgende Bedingung erfüllt: y/z <= V2. 16. outlet nozzle according to one of the preceding claims, characterized in that the ratio between the axial length y of a portion of the outlet channel (7) with a constant diameter and the total axial length z of the outlet channel (7) satisfies the following condition: y / z <= V2 ,
17. Auslassdüse nach einem vorstehenden Ansprüche, dadurch gekennzeichnet, dass sie für eine einfache oder doppelt-konische Schleudertrommel (100) eines Separators mit vertikaler Drehachse ausgelegt ist, in der ein zu verarbeitendes Produkt im kontinuierlichen Betrieb von Feststoffen zu klären ist. 17. outlet nozzle according to one of the preceding claims, characterized in that it is designed for a single or double-conical centrifugal drum (100) of a separator with a vertical axis of rotation, in which a product to be processed in the continuous operation of solids is to clarify.
18. Separatortrommel mit vertikaler Drehachse, gekennzeichnet durch eine Auslassdüse nach einem oder mehreren der vorstehenden Ansprüche. 18. Separator drum with a vertical axis of rotation, characterized by an outlet nozzle according to one or more of the preceding claims.
EP13814054.6A 2012-12-05 2013-12-03 Outlet nozzle for a centrifuge drum Active EP2928613B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19152074.1A EP3488934A1 (en) 2012-12-05 2013-12-03 Outlet nozzle for a centrifuge drum

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012111801.9A DE102012111801A1 (en) 2012-12-05 2012-12-05 Outlet nozzle for a centrifuge drum
PCT/EP2013/075300 WO2014086735A2 (en) 2012-12-05 2013-12-03 Outlet nozzle for a centrifuge drum

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP19152074.1A Division-Into EP3488934A1 (en) 2012-12-05 2013-12-03 Outlet nozzle for a centrifuge drum
EP19152074.1A Division EP3488934A1 (en) 2012-12-05 2013-12-03 Outlet nozzle for a centrifuge drum

Publications (2)

Publication Number Publication Date
EP2928613A2 true EP2928613A2 (en) 2015-10-14
EP2928613B1 EP2928613B1 (en) 2019-02-27

Family

ID=49883058

Family Applications (2)

Application Number Title Priority Date Filing Date
EP19152074.1A Withdrawn EP3488934A1 (en) 2012-12-05 2013-12-03 Outlet nozzle for a centrifuge drum
EP13814054.6A Active EP2928613B1 (en) 2012-12-05 2013-12-03 Outlet nozzle for a centrifuge drum

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP19152074.1A Withdrawn EP3488934A1 (en) 2012-12-05 2013-12-03 Outlet nozzle for a centrifuge drum

Country Status (8)

Country Link
US (1) US10315203B2 (en)
EP (2) EP3488934A1 (en)
CN (1) CN104837563A (en)
BR (1) BR112015012534B1 (en)
DE (1) DE102012111801A1 (en)
RU (1) RU2653827C2 (en)
TR (1) TR201907235T4 (en)
WO (1) WO2014086735A2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9492829B2 (en) * 2013-03-11 2016-11-15 Control Components, Inc. Multi-spindle spray nozzle assembly
EP2962762B1 (en) * 2014-07-04 2021-03-24 Andritz Frautech S.r.l. Discharge nozzle for nozzle separator
CA3018847C (en) * 2016-03-24 2019-07-09 Fluid-Quip, Inc. Centrifuge rotor with staggered nozzles for use in a disc nozzle centrifuge
DE102016108057B4 (en) 2016-04-29 2018-08-02 Gea Mechanical Equipment Gmbh Outlet nozzle for a centrifuge drum, centrifuge drum and assembly tool
CN108531375A (en) * 2018-04-24 2018-09-14 郭庆 A kind of bacterium solution bacterium piece-rate system
CN108424836A (en) * 2018-04-24 2018-08-21 郭庆 A kind of bacterium solution bacterium multi-stage screening apparatus
CN112221737B (en) * 2020-11-06 2024-09-17 胡奕晅 Anti-blocking inverted conical nozzle

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2060239A (en) * 1936-11-10 Centrifuge construction
DE42343C (en) G. pfisterer in Heidelberg Processing sieve
BE464440A (en) * 1946-02-21
US2560239A (en) 1949-06-01 1951-07-10 Chicago Pneumatic Tool Co Air-line oiler
US2695748A (en) * 1952-01-22 1954-11-30 Merco Centrifugal Co Centrifuge nozzle construction
DE3240093C2 (en) * 1982-10-29 1986-03-27 Westfalia Separator Ag, 4740 Oelde Centrifuge with a self-cleaning centrifugal drum
CN87214261U (en) 1987-10-16 1988-03-23 石油工业部华东勘察设计研究院 Stream whirl nozzle
DE3922619C1 (en) 1989-07-10 1990-10-04 Westfalia Separator Ag, 4740 Oelde, De
DE4105903C2 (en) 1991-02-26 1994-10-06 Escher Wyss Gmbh Solid bowl centrifuge as a cleaner for material suspensions
DE19527039C5 (en) 1995-07-25 2004-02-26 Westfalia Separator Ag Outlet nozzle for centrifuge drums
SE505385C2 (en) * 1995-11-17 1997-08-18 Alfa Laval Ab Rotor for a centrifugal separator
US6511005B2 (en) * 2001-03-30 2003-01-28 Fluid-Quip, Inc. Bowl centrifuge nozzle
EP1799351B1 (en) * 2004-09-08 2018-01-31 Alfa Laval Corporate AB Centrifuge nozzle and method and apparatus for inserting said nozzle into a centrifuge bowl
DE102004051264A1 (en) * 2004-10-21 2006-04-27 Westfalia Separator Ag Separator with a centrifugal drum and a piston valve
DK178253B1 (en) 2010-11-12 2015-10-12 Alfa Laval Corp Ab A centrifugal separator and an outlet element for a centrifugal separator

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2014086735A3 *

Also Published As

Publication number Publication date
DE102012111801A1 (en) 2014-06-05
RU2653827C2 (en) 2018-05-14
RU2015126091A (en) 2017-01-12
BR112015012534A2 (en) 2017-07-11
US10315203B2 (en) 2019-06-11
WO2014086735A3 (en) 2015-04-02
EP2928613B1 (en) 2019-02-27
BR112015012534B1 (en) 2020-10-06
TR201907235T4 (en) 2019-06-21
EP3488934A1 (en) 2019-05-29
WO2014086735A2 (en) 2014-06-12
CN104837563A (en) 2015-08-12
US20150306606A1 (en) 2015-10-29

Similar Documents

Publication Publication Date Title
EP2928613B1 (en) Outlet nozzle for a centrifuge drum
EP2646160B1 (en) Dynamic element for the separating device of a stirring ball mill
EP2704840B1 (en) Centrifuge with separation discs
DE69315109T2 (en) Screw centrifuge with interrupted screw spirals in the conical discharge jacket part
EP2091657B1 (en) Centrifuge, especially separator, with solid discharge orifices
EP2958678A2 (en) Separator disc package
DE102010021212B4 (en) drilling
EP2658656B1 (en) Solid bowl screw centrifuge having an overflow weir
EP2451585B1 (en) Separator comprising a vertical rotational axis
WO2007074076A1 (en) Screw-type solid bowl centrifuge
DE20109688U1 (en) Disc centrifuge with double inlet
EP1848540B1 (en) Separator drum
DE4326605A1 (en) Method and device for separating a fine-grained solid into two grain fractions
EP3448577B1 (en) Outlet nozzle for a centrifugal drum, centrifugal drum and assembly tool
EP2050505B1 (en) Centrifuge and separator disc
DE102015108649A1 (en) drilling
DE2146022C2 (en) Sorting device for fiber suspensions
EP4049758A1 (en) Wear resistant rotor
DE102012018241B4 (en) separator
EP2025938B1 (en) Device for separating interfering solid matter from biosuspensions
DE202008007499U1 (en) Centrifuge drum with a distributor
DE202005006450U1 (en) Swirl-inducing dynamic mixer dosing flocculation aid to sewage sludge, includes dosing nozzles inclined with respect to main longitudinal axis

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20150617

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20180703

RIN1 Information on inventor provided before grant (corrected)

Inventor name: MACKEL, WILFRIED

Inventor name: KASSERA, VOLKER

Inventor name: TEIGELER, JUERGEN

GRAJ Information related to disapproval of communication of intention to grant by the applicant or resumption of examination proceedings by the epo deleted

Free format text: ORIGINAL CODE: EPIDOSDIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTC Intention to grant announced (deleted)
INTG Intention to grant announced

Effective date: 20180917

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502013012327

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1100554

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190315

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20190227

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190527

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190227

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190627

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190227

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190227

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190227

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190227

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190527

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190528

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190227

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190627

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190227

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190227

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190227

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190227

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190227

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190227

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190227

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502013012327

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190227

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190227

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20191128

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190227

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20191231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190227

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20191203

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191231

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191203

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191203

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191203

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191231

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191231

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191231

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 1100554

Country of ref document: AT

Kind code of ref document: T

Effective date: 20191203

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191203

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190227

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190227

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20131203

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190227

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230411

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: TR

Payment date: 20231127

Year of fee payment: 11

Ref country code: SE

Payment date: 20231220

Year of fee payment: 11

Ref country code: IT

Payment date: 20231227

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20231221

Year of fee payment: 11