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WO2004041442A1 - Separateur - Google Patents

Separateur Download PDF

Info

Publication number
WO2004041442A1
WO2004041442A1 PCT/SE2003/001651 SE0301651W WO2004041442A1 WO 2004041442 A1 WO2004041442 A1 WO 2004041442A1 SE 0301651 W SE0301651 W SE 0301651W WO 2004041442 A1 WO2004041442 A1 WO 2004041442A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
rotor
arrangement
outlet
outlet duct
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.)
Ceased
Application number
PCT/SE2003/001651
Other languages
English (en)
Inventor
Torgny Lagerstedt
Claes Inge
Peter Franzén
Olev Maehans
Martin Sandgren
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.)
Grimaldi Development AB
Original Assignee
3Nine AB
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 3Nine AB filed Critical 3Nine AB
Priority to AU2003272179A priority Critical patent/AU2003272179A1/en
Publication of WO2004041442A1 publication Critical patent/WO2004041442A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
    • B01D45/14—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by rotating vanes, discs, drums or brushes
    • 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
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B7/00—Elements of centrifuges
    • B04B7/02—Casings; Lids
    • 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

Definitions

  • the present invention relates to an arrangement for a centrifugal separator for separating solid and/or liquid particles suspended in gaseous media, comprising a rotor provided with sedimentation means, which is mounted rotatably in a surrounding, stationary housing and has a central inlet for the gaseous medium to be purified, the housing having on the one hand an outlet for purified gas, which has been freed of solid and/or liquid particles on passage through the sedimentation means in the rotor, and on the other hand an outlet for the solid and or liquid particles which are first deposited on the sedimentation means and then transferred onto a side wall of the housing by a centrifugal force.
  • the rotor of the latter is provided with sedimentation means in the form of a large number of insert plates, such as conical disks, stacked closely one on another or a number of curved axial plates or some other form of sedimentation means functioning in an equivalent way.
  • the gas to be purified flows, in this connection, into a central inlet shaft in the rotor, after which the particles in the gas are caused to be deposited on the sedimentation means when the gas flows radially out of the rotor. The deposited particles then slide outward along the sedimentation means and are finally thrown across onto the surrounding, stationary housing wall by centrifugal forces.
  • the particles caught on the housing wall are then conveyed along the inside of the housing wall toward a collecting device by means of the gas flow through the housing.
  • the liquid or the solid particles caught on the housing wall is or are subjected to high shear stresses by the high tangential flow rate of the purified gas. This can lead to undesirable spraying of the particles/liquid back into the purified gas .
  • One object of the present invention is to eliminate the abovementioned disadvantages of previously known centrifugal separators and to propose an arrangement in which the configuration is such that the separated liquid or the solid particles is or are subjected to considerably reduced shear action by the gas where the liquid/particles is/are conducted off so as thus to reduce the risk of being mixed back into the gas flow.
  • the chamber in the housing widens in the direction of rotation and that the outlet for the purified gas and the outlet for the solid and/or liquid particles are formed by a common outlet duct which has an inlet mouth connected essentially tangentially to the housing with an extent in the axial direction of the housing which corresponds at least essentially to the axial length of that part of the rotor containing the sedimentation means, a relatively large area can be created at the inlet mouth of the outlet duct and also downstream thereof, which considerably reduces the flow rate and thus the risk of the particles and/or the liquid being sprayed and mixed back into the purified gas.
  • the actual drainage of the solid and/or liquid particles transferred onto the side wall of the housing and conveyed to the outlet duct can then take place in this relatively calm region of the outlet duct.
  • Fig. 1 is a diagrammatic side view of a centrifugal separator according to the invention.
  • Fig. 2 is a cross-sectional view along the line I-I in Fig. 1. Detailed description of preferred embodiment
  • reference number 10 designates generally a centrifugal separator according to the invention for separating solid and/or liquid particles suspended in gaseous media, for example for purifying air which contains an oil mist.
  • the centrifugal separator 10 according to the invention is so compact that it can be located directly on the machine which generates a contaminated gaseous medium, and makes it possible to purify such contaminated air so effectively that it can be released into the premises directly adjacent to the associated process machine or machines.
  • the centrifugal separator 10 comprises a rotor 12 with a number of sedimentation means in the form of insert plates 14 mounted on it.
  • the insert plates 14, on which solid and/or liquid particles suspended in the gas are to be deposited by sedimentation when the rotor rotates, can be in the form shown in Fig. 1, namely conical disk elements stacked one on another, separated by a small spacing axially.
  • the rotor 12 is driven by a motor 16 via a shaft 18.
  • a stationary housing 20 surrounds the rotor 12 and has a leadthrough 22 for an intake 24 for the gas to be purified.
  • the intake 24 is connected to a central inlet shaft 26 of the rotor 12.
  • the axial side wall 28 of the housing 20 encloses the periphery of the rotor 12 in such a curved manner that a spiral chamber 30 with a cross section increasing successively in the direction of rotation of the rotor 12 is formed between the rotor 12 and the side wall 28 of the housing.
  • An outlet duct 32 common to both the gas and the liquid or the solid particles accumulated on the housing wall 28 is connected to the chamber 30 where the latter is widest via a substantially tangential inlet mouth 34.
  • a delimiting wall 31 of the inlet mouth 34 of the outlet duct 32, which mouth is connected tangentially to the housing 20, is located where the spacing between the rotor periphery and the side wall 28 of the housing is smallest.
  • the outlet duct 32 has a length in the axial direction which corresponds essentially to the axial length of that part of the rotor 12 containing the sedimentation means 14.
  • the outlet duct 32 can also advantageously have a cross-sectional area which increases in the direction of flow so as further to reduce the flow rate of the outflowing gas flow and thus reduce the risk of the latter swirling up and spraying the liquid/particles back into the purified gas flow.
  • This collecting device 36 Located downstream in the outlet duct 32 is a collecting device 36 for conducting away from the gas flow the liquid/particles separated out from the contaminated gas.
  • This collecting device 36 can be in the form of a channel or the like which extends into the outlet duct 32 and to which channel a drainage pipe 38 or equivalent is connected.
  • the centrifugal separator 10 described above is therefore designed so as to bring about in the housing a considerable reduction in flow rate of the purified gas, so that both purified gas and separated liquid/particles can be conducted out through a common outlet, in which the gas flow rate can be reduced further by a widening cross-sectional area of the outlet, which results in the risk of liquid/particles being mixed back into the gas being minimized at the collecting device.
  • the separator 10 can be mounted and driven in a vertical position, as shown in the drawing. However, it is entirely possible to mount the separator with a substantially horizontally oriented longitudinal axis, the outlet duct then suitably being positioned below the rotor.
  • the design of the separator housing and the outlet duct also makes possible simple flushing of the same by means of a cleaning liquid supplied from outside.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Centrifugal Separators (AREA)
  • Separating Particles In Gases By Inertia (AREA)

Abstract

L'invention concerne un séparateur centrifuge servant à séparer des particules liquides et/ou solides en suspension dans des milieux gazeux. Ce séparateur comprend un rotor (12) pourvu de moyens de sédimentation (14), lequel rotor est monté de façon rotative dans un logement stationnaire périphérique (20) et présente un orifice d'entrée central (26) pour le milieu gazeux à purifier. Une paroi latérale axiale (28) du logement entoure la périphérie des moyens de sédimentation (14) du rotor, de sorte qu'une chambre (30) dont la section transversale augmente successivement dans le sens de rotation du rotor est formée entre le rotor et la paroi latérale du logement. L'orifice de sortie pour le gaz purifié et l'orifice de sortie pour les particules liquides et/ou solides sont formés par un conduit de sortie commun (32) présentant une embouchure d'entrée (34), reliée au logement (20) de façon sensiblement tangentielle, avec une extension dans le sens axial du logement qui correspond au moins sensiblement à la longueur axiale de la partie du rotor (12) contenant les moyens de sédimentation (14). Ledit conduit de sortie (32) est pourvu de moyens (36, 38) servant à évacuer les particules liquides et/ou solides envoyées contre la paroi latérale (28) du logement sous l'effet d'une force centrifuge et acheminées au conduit de sortie (32).
PCT/SE2003/001651 2002-11-04 2003-10-24 Separateur Ceased WO2004041442A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003272179A AU2003272179A1 (en) 2002-11-04 2003-10-24 Separator

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0203234A SE524140C2 (sv) 2002-11-04 2002-11-04 Anordning vid en separator
SE0203234-0 2002-11-04

Publications (1)

Publication Number Publication Date
WO2004041442A1 true WO2004041442A1 (fr) 2004-05-21

Family

ID=20289441

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2003/001651 Ceased WO2004041442A1 (fr) 2002-11-04 2003-10-24 Separateur

Country Status (3)

Country Link
AU (1) AU2003272179A1 (fr)
SE (1) SE524140C2 (fr)
WO (1) WO2004041442A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005068061A1 (fr) * 2004-01-16 2005-07-28 Advanced Grinding Technologies Pty Limited Dispositifs et procedes de traitement
WO2005123261A1 (fr) * 2004-06-16 2005-12-29 3Nine Ab Dispositif de separateur centrifuge
DE102007054921A1 (de) * 2007-07-31 2009-02-05 Hengst Gmbh & Co.Kg Ölnebelabscheider einer Brennkraftmaschine
EP2602015A1 (fr) 2011-12-08 2013-06-12 MAN Truck & Bus AG Dispositif de nettoyage des gaz du carter du vilebrequin de moteurs à combustion interne

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE533941C2 (sv) 2009-07-13 2011-03-08 Alfa Laval Corp Ab En centrifugalseparator

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4118207A (en) * 1976-12-06 1978-10-03 United States Steel Corporation Rotating disc particulate separator
EP0286160A1 (fr) * 1987-03-25 1988-10-12 B B Romico Beheer B.V. Séparateur de particules rotatif

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4118207A (en) * 1976-12-06 1978-10-03 United States Steel Corporation Rotating disc particulate separator
EP0286160A1 (fr) * 1987-03-25 1988-10-12 B B Romico Beheer B.V. Séparateur de particules rotatif

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005068061A1 (fr) * 2004-01-16 2005-07-28 Advanced Grinding Technologies Pty Limited Dispositifs et procedes de traitement
US8844847B2 (en) 2004-01-16 2014-09-30 Advanced Grinding Technologies Pty Ltd Processing apparatus and methods
WO2005123261A1 (fr) * 2004-06-16 2005-12-29 3Nine Ab Dispositif de separateur centrifuge
DE102007054921A1 (de) * 2007-07-31 2009-02-05 Hengst Gmbh & Co.Kg Ölnebelabscheider einer Brennkraftmaschine
EP2602015A1 (fr) 2011-12-08 2013-06-12 MAN Truck & Bus AG Dispositif de nettoyage des gaz du carter du vilebrequin de moteurs à combustion interne
DE102011120473A1 (de) 2011-12-08 2013-06-13 Man Truck & Bus Ag Vorrichtung zum Reinigen der Kurbelgehäusegase von Brennkraftmaschinen

Also Published As

Publication number Publication date
AU2003272179A1 (en) 2004-06-07
SE524140C2 (sv) 2004-07-06
SE0203234D0 (sv) 2002-11-04
SE0203234L (sv) 2004-05-05

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