EP2928613A2 - Buse d'évacuation d'un tambour centrifuge - Google Patents

Buse d'évacuation d'un tambour centrifuge

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)
English (en)
Other versions
EP2928613B1 (fr
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/fr
Publication of EP2928613A2 publication Critical patent/EP2928613A2/fr
Application granted granted Critical
Publication of EP2928613B1 publication Critical patent/EP2928613B1/fr
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)
  • Paper (AREA)
  • Nozzles (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

L'invention concerne une buse d'évacuation de tambours centrifuges comportant un corps de buse (2) dans lequel se trouvent un canal d'admission (4) s'étendant axialement et un canal d'évacuation (7) formant un angle obtus par rapport au canal d'admission, le canal d'évacuation présentant une ouverture d'entrée (8) et une ouverture de sortie (10), le diamètre du canal d'évacuation (7) s'agrandissant au moins par endroits. La buse d'évacuation est caractérisée en ce que le point le plus étroit du canal d'évacuation (7) en termes de section transversale est formé par l'ouverture de sortie (8) proprement dite, et en ce que la section transversale du canal d'évacuation (7) ne diminue en aucun point sur toute la longueur axiale du canal d'évacuation (7) dans la direction de sortie (A).
EP13814054.6A 2012-12-05 2013-12-03 Buse d'évacuation d'un tambour centrifuge Active EP2928613B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19152074.1A EP3488934A1 (fr) 2012-12-05 2013-12-03 Buse de sortie pour un tambour centrifuge

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012111801.9A DE102012111801A1 (de) 2012-12-05 2012-12-05 Auslassdüse für eine Zentrifugentrommel
PCT/EP2013/075300 WO2014086735A2 (fr) 2012-12-05 2013-12-03 Buse d'évacuation d'un tambour centrifuge

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP19152074.1A Division-Into EP3488934A1 (fr) 2012-12-05 2013-12-03 Buse de sortie pour un tambour centrifuge
EP19152074.1A Division EP3488934A1 (fr) 2012-12-05 2013-12-03 Buse de sortie pour un tambour centrifuge

Publications (2)

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

Family

ID=49883058

Family Applications (2)

Application Number Title Priority Date Filing Date
EP13814054.6A Active EP2928613B1 (fr) 2012-12-05 2013-12-03 Buse d'évacuation d'un tambour centrifuge
EP19152074.1A Withdrawn EP3488934A1 (fr) 2012-12-05 2013-12-03 Buse de sortie pour un tambour centrifuge

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP19152074.1A Withdrawn EP3488934A1 (fr) 2012-12-05 2013-12-03 Buse de sortie pour un tambour centrifuge

Country Status (8)

Country Link
US (1) US10315203B2 (fr)
EP (2) EP2928613B1 (fr)
CN (1) CN104837563A (fr)
BR (1) BR112015012534B1 (fr)
DE (1) DE102012111801A1 (fr)
RU (1) RU2653827C2 (fr)
TR (1) TR201907235T4 (fr)
WO (1) WO2014086735A2 (fr)

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 (fr) * 2014-07-04 2021-03-24 Andritz Frautech S.r.l. Buse de décharge pour séparateur de buse
MX2018011526A (es) * 2016-03-24 2019-07-04 Fluid Quip Inc Rotor centrífugo con boquillas alternadas para usarse en una centrífuga de disco de boquillas.
DE102016108057B4 (de) 2016-04-29 2018-08-02 Gea Mechanical Equipment Gmbh Auslassdüse für eine Zentrifugentrommel, Zentrifugentrommel und Montagewerkzeug
CN108531375A (zh) * 2018-04-24 2018-09-14 郭庆 一种菌液细菌分离系统
CN108424836A (zh) * 2018-04-24 2018-08-21 郭庆 一种菌液细菌多级筛选设备
CN112221737B (zh) * 2020-11-06 2024-09-17 胡奕晅 一种防堵塞倒锥形喷嘴

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DE42343C (de) G. pfisterer in Heidelberg Aufbereitungssieb
US2060239A (en) * 1936-11-10 Centrifuge construction
BE464440A (fr) * 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 (de) * 1982-10-29 1986-03-27 Westfalia Separator Ag, 4740 Oelde Zentrifuge mit einer selbstentleerenden Schleudertrommel
CN87214261U (zh) 1987-10-16 1988-03-23 石油工业部华东勘察设计研究院 旋流式喷头
DE3922619C1 (fr) 1989-07-10 1990-10-04 Westfalia Separator Ag, 4740 Oelde, De
DE4105903C2 (de) 1991-02-26 1994-10-06 Escher Wyss Gmbh Vollmantelzentrifuge als Reiniger für Stoffsuspensionen
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SE505385C2 (sv) 1995-11-17 1997-08-18 Alfa Laval Ab Rotor för en centrifugalseparator
US6511005B2 (en) * 2001-03-30 2003-01-28 Fluid-Quip, Inc. Bowl centrifuge nozzle
KR101198425B1 (ko) * 2004-09-08 2012-11-06 알파 라발 코포레이트 에이비 원심 분리기 노즐과 상기 노즐을 원심 분리기 보울에삽입하는 방법과 장치
DE102004051264A1 (de) * 2004-10-21 2006-04-27 Westfalia Separator Ag Separator mit einer Schleudertrommel und einem Kolbenschieber
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Also Published As

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

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