EP1432521B1 - Vollmantel-schneckenzentrifuge mit druckgehäuse - Google Patents

Vollmantel-schneckenzentrifuge mit druckgehäuse Download PDF

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Publication number
EP1432521B1
EP1432521B1 EP02762472.5A EP02762472A EP1432521B1 EP 1432521 B1 EP1432521 B1 EP 1432521B1 EP 02762472 A EP02762472 A EP 02762472A EP 1432521 B1 EP1432521 B1 EP 1432521B1
Authority
EP
European Patent Office
Prior art keywords
drum
bowl screw
type centrifuge
solid bowl
solid
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.)
Expired - Lifetime
Application number
EP02762472.5A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1432521A1 (de
Inventor
Hans-Joachim Beyer
Alfons Monkenbusch
Michael Reichenbach
Michael Müller
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
Publication of EP1432521A1 publication Critical patent/EP1432521A1/de
Application granted granted Critical
Publication of EP1432521B1 publication Critical patent/EP1432521B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B04B11/08—Skimmers or scrapers for discharging ; Regulating thereof
    • B04B11/082—Skimmers for discharging liquid
    • 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
    • B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B7/00—Elements of centrifuges
    • 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
    • B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
    • B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
    • B04B2001/2083—Configuration of liquid outlets

Definitions

  • the invention relates to a solid bowl screw centrifuge according to the preamble of claim 1.
  • the frictional power will increase approximately fivefold (eg from 10 kW to 50 kW or from 100 kW to 500 kW, depending on the machine type and / or or diameter).
  • the liquid and / or the solids discharge as at least one or more openings in a rotatable part of the solid bowl centrifuge, in particular through openings in the drum wall, formed and at least one of the openings is only partially from one drum of the solid bowl screw centrifuge covered housing, wherein between the at least one housing and the drum and / or other rotatable elements of the solid shell screw centrifuge (drum heads, hubs) at least one or more seals are arranged.
  • the pressure-resistant (and thus substantially gas-tight) housing is preferably reduced to the area of the at least one (or more) solids discharge and / or the liquid discharge alone. Since thus no longer the entire outer drum space but only a part of the same is also pressurized on the outside, the drive power required to operate the solid-bowl centrifuge is reduced.
  • the solid shell screw centrifuge can also be produced more economically, since the pressure-resistant housing to be set under pressure are smaller. Also, the relevant regulations for operating machines under increased pressure can be more easily met.
  • At least one paring disc is suitable as a liquid discharge, so that no pressure housing is required in the region of the liquid discharge.
  • the paring disc could be supplemented by a special pressure housing.
  • one or more housings and seals on the side of the liquid discharge which cover the at least one or more liquid discharges.
  • the seals are designed as mechanical seals, which surround, for example, the outer circumference of the drum and / or can rest against an axial drum wall. Mechanical seals ensure high tightness between the rotating drum and the non-rotating housing.
  • the at least one housing only overlaps the region of the openings on the drum.
  • the at least one housing is designed for operation of more than 0.5 bar, preferably 3-6 bar.
  • the peripheral speed of the seals is greater than 30m / sec.
  • the temperature in the pressure range in the centrifugal material processing is more than 50 ° C, preferably 100 ° C to 160 ° C.
  • Fig. 1 shows a solid bowl screw centrifuge with a drum 1 and arranged in the drum screw 3, which has a screw body 5 and a screw body 5 surrounding the screw body 7 helically. Between the screw threads 9a, 9b,..., A channel 11 for conveying / transporting a material to be processed is formed. Between the drum 1 and the screw body 5 bearings 4 and seals 6 are arranged at both ends of the solid bowl screw centrifuge.
  • the centrifuge points in her in Fig. 1 rear portion of a cylindrical section 13 and in his in Fig. 1 adjoining front portion has a tapered (or stepwise) tapered portion 15.
  • the drum is also in axial connection with the tapered portion 15 with a further cylindrical portion 17, to which a drum head 18 (and / or a hub) can connect.
  • the product to be centrifuged I is passed through the centrally arranged inlet pipe 19 into a distributor 21 and from there through radial openings in the distributor 21 into the centrifugal space 23 with the screw 3 and the drum 1 surrounding the screw 3.
  • the centrifuged material I When passing through the distributor 21 and when entering the centrifugal space 23, the centrifuged material I is accelerated. By the action of the centrifugal force, solid particles settle on the drum wall.
  • the screw 3 rotates at a slightly lower or greater speed than the drum 1 and promotes the ejected solid S to the tapered portion 15 out of the drum 1 for solids discharge.
  • the liquid L flows to the larger drum diameter at the rear end of the drum 1 and is discharged there.
  • the drum 1 and / or hubs adjacent thereto are supported by bearings 25 at their axial ends in a machine frame (not shown) and usually provided with a hood or cover (not shown) to protect the operators from the rotating parts.
  • the drum 1 is provided in its peripheral wall with at least one radially outwardly facing opening 27.
  • the areas of the solid and the liquid discharge are sealed to the environment.
  • this technique does not take place in that the entire drum surrounded by a pressure-tight housing G. but by a targeted local sealing of the drum in the field of solid and / or liquid discharges.
  • the drum 1 of the embodiment of the Fig. 1 provided in the region of the radial openings 27 of a ring-like housing 29 here, which covers the openings axially straight so that between the housing 29 - or between the inner circumference of the axial walls of the housing - and the drum 1 seals 31 - z.
  • B. mechanical seals - can be arranged. In this way, a seal between the rotatable drum 1 and the stationary housing 29 is achieved.
  • the liquid is discharged by means of a paring disc 32, which ensures the sealing of the drum interior to the outside in this area during operation.
  • the paring disc 32 is arranged in a subsequent to the centrifugal chamber 23 and connected thereto chamber 34 of the drum 1, which is connected to the drum through at least one opening 35.
  • Another seal 31 between the drum head 41 and the fixed paring disc 32 (or a tubular approach the paring disc) can also be formed as a mechanical seal and thus also ensure the compressive strength in this area even at a standstill.
  • Fig. 2 the pressure operable area is shown dotted.
  • the inlet and outlet lines, not shown here outside the solid bowl centrifuge are designed for a printing operation.
  • Fig. 3 differs from the embodiment of Fig. 1 in that the openings 27 are arranged in the solid discharge side facing axial drum wall, the housing 29, these axial openings 27 in turn covers.
  • the housing 29 is also in turn designed like a ring and sealed by means of seals 31 towards the drum wall.
  • the housing 29 also overlaps a step 33 of the drum wall housing.
  • the embodiments of the Fig. 4 and 5 differ from each other in that the solids discharge of the Fig. 4 the the Fig. 1 and the solids discharge of Fig. 5 the the Fig. 3 equivalent.
  • Fig.1 and Fig. 3 further lies in the fact that the liquid discharge in Fig. 4 and 5 each not by one - or more - peeling disc (s) but only by at least one or more overflow opening (s) 35 in the solid wall facing away from the solids discharge axial wall of the drum 1 is realized.
  • a housing 37 wherein between the housing 37 and the drum outer wall - and / or corresponding other machine parts - seals 39 (eg mechanical seals) are arranged.
  • seals - 39a - abuts on the axial end face of the drum wall and the other - 39b - surrounds a cylindrical, subsequent to the Trommelaußenwandung drum head 41 (eg a hub).
  • Trommelaußenwandung drum head 41 eg a hub.
  • the drum heads 18, 41 and the drum 1 have been shown in one piece. In practice, a multi-part implementation - which is known per se - preferred.
  • Fig. 6 illustrates a centrifuge according to the prior art. Unlike the invention, in this case the entire drum is enclosed by a pressure-tight housing G, so that the entire inside and outside of the drum are under pressure during operation ( Fig. 7 ).
  • drum 1 slug 3 camp 4 screw body 5 seals 6 screw blade 7 screw flights 9a, 9b, ... channel 11 cylindrical section 13 rejuvenating section 15 cylindrical section 17 drumhead 18 inlet pipe 19 distributor 21 centrifugal chamber 23 camp 25 openings 27 casing 29 seals 31 peeling disc 32 gradation 33 Overflow opening 35 chamber 34 casing 37 seals 39 drumhead 41 Centrifugal goods (inlet) I Liquid (liquid) L Solid (solid) S casing H

Landscapes

  • Centrifugal Separators (AREA)
EP02762472.5A 2001-10-02 2002-09-06 Vollmantel-schneckenzentrifuge mit druckgehäuse Expired - Lifetime EP1432521B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10148774A DE10148774B4 (de) 2001-10-02 2001-10-02 Vollmantel-Schneckenzentrifuge mit Druckgehäuse
DE10148774 2001-10-02
PCT/EP2002/009993 WO2003031073A1 (de) 2001-10-02 2002-09-06 Vollmantel-schneckenzentrifuge mit druckgehäuse

Publications (2)

Publication Number Publication Date
EP1432521A1 EP1432521A1 (de) 2004-06-30
EP1432521B1 true EP1432521B1 (de) 2013-05-22

Family

ID=7701240

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02762472.5A Expired - Lifetime EP1432521B1 (de) 2001-10-02 2002-09-06 Vollmantel-schneckenzentrifuge mit druckgehäuse

Country Status (6)

Country Link
US (1) US6986733B2 (zh)
EP (1) EP1432521B1 (zh)
CN (1) CN1293947C (zh)
CA (1) CA2462585C (zh)
DE (1) DE10148774B4 (zh)
WO (1) WO2003031073A1 (zh)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10148774B4 (de) * 2001-10-02 2005-08-11 Westfalia Separator Ag Vollmantel-Schneckenzentrifuge mit Druckgehäuse
DE10223802B4 (de) * 2002-05-29 2005-06-09 Westfalia Separator Ag Vollmantel-Schneckenzentrifuge
EP1468744B1 (de) * 2003-04-16 2008-06-04 Ferrum AG Schubzentrifuge mit rotierbarem Trichter zur Vorbeschleunigung des Gemisches
US7025211B2 (en) * 2003-04-16 2006-04-11 Ferrum Ag Double pusher centrifuge
DE10336350B4 (de) * 2003-08-08 2007-10-31 Westfalia Separator Ag Vollmantel-Schneckenzentrifuge, mit Schälscheibe
US7255670B2 (en) * 2004-03-04 2007-08-14 Hutchison Hayes, L.P. Three phase decanter centrifuge
DE102005027553A1 (de) * 2005-06-14 2006-12-28 Westfalia Separator Ag Drei-Phasen-Vollmantel-Schneckenzentrifuge und Verfahren zur Regelung des Trennprozesses
CN100372614C (zh) * 2005-11-24 2008-03-05 张家港华大离心机制造有限公司 螺旋卸料过滤离心机
DE102006030477A1 (de) * 2006-03-30 2007-10-04 Westfalia Separator Ag Vollmantel-Schneckenzentrifuge mit Abflußöffnungen zur Teil- und Restentleerung der Trommel
CN101903110B (zh) * 2007-12-07 2012-06-13 巴工业株式会社 卧式离心分离装置
DK200800555A (en) * 2008-04-16 2009-10-17 Alfa Laval Corp Ab Centrifugal separator
US8021289B2 (en) * 2009-02-20 2011-09-20 Tema Systems, Inc. Clean-in-place decanter centrifuge
CN101664718B (zh) * 2009-09-09 2011-12-14 江苏华大离心机制造有限公司 卧式螺旋卸料沉降离心机
JP5220950B1 (ja) * 2012-11-02 2013-06-26 巴工業株式会社 分離液噴射ノズル付き遠心分離機
EP2918345B1 (en) * 2014-03-14 2020-02-05 Andritz S.A.S. Decanter centrifuge
DE102014108236A1 (de) 2014-06-12 2015-12-17 Gea Mechanical Equipment Gmbh Vollmantel-Schneckenzentrifuge und Verfahren zu deren Betrieb
DK3398687T3 (da) * 2017-05-04 2020-04-20 Andritz Sas Dekantercentrifuge
AU2018301839B2 (en) * 2017-07-14 2021-07-22 Vermeer Manufacturing Company Hydro excavation vacuum apparatus
DE102019126325A1 (de) * 2019-09-30 2021-04-01 Gea Mechanical Equipment Gmbh Vollmantel-Schneckenzentrifuge
CN112791860B (zh) * 2021-03-26 2021-06-22 广州加泰医药科技有限公司 一种生物制药离心设备

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FR1388992A (fr) * 1964-01-03 1965-02-12 Procédé d'extraction de l'huile contenue dans une pâte d'olives broyées et extracteur centrifuge perfectionné servant à la mise en oeuvre de ce procédé
US3399828A (en) * 1966-11-25 1968-09-03 Bird Machine Co Centrifuge solids discharge receiving compartment
DE2154558A1 (de) * 1971-11-03 1973-05-10 Georg Hiller Vollmantelschneckenzentrifuge
DE2212178A1 (de) * 1972-03-14 1973-09-20 Kloeckner Humboldt Deutz Ag Spuelbare zentrifuge
US3854658A (en) * 1973-05-07 1974-12-17 Dorr Oliver Inc Solid bowl conveyer type centrifuge
SE376375B (zh) * 1973-10-01 1975-05-26 Alfa Laval Ab
US3880346A (en) * 1974-03-25 1975-04-29 Baker Perkins Inc Centrifuge with mechanism for inhibiting the migration of separated air-entrained solids
DE2547538A1 (de) * 1975-10-23 1977-05-05 Flottweg Werk Bruckmayer Druckdichte vollmantel-schneckenzentrifuge
US4141488A (en) * 1977-08-18 1979-02-27 Koninklijke Nederlandse Papierfabrieken N.W. Centrifuge
SE421870B (sv) * 1978-01-12 1982-02-08 Alfa Laval Separation As Centrifugalseparator med en horisontellt lagrad rotor
US4708711A (en) * 1985-11-08 1987-11-24 Krauss-Maffei A.G. Pressure centrifuge
DE3545515A1 (de) * 1985-11-08 1987-05-14 Krauss Maffei Ag Druckzentrifuge
DE3612919C1 (de) * 1986-04-17 1987-10-29 Westfalia Separator Ag Vollmantel-Schneckenzentrifuge mit einer mit Feststoffaustragsoeffnungen versehenen Zentrifugentrommel
DE3638652A1 (de) * 1986-11-12 1988-06-01 Flottweg Bird Mach Gmbh Vollmantel-schneckenzentrifuge
DE4315074B4 (de) * 1993-05-06 2005-01-05 Baumann-Schilp, Lucia Verfahren und Vorrichtung zum Entwässern von Schlämmen
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DE19713512C2 (de) * 1997-04-01 2000-01-13 Westfalia Separator Ag Gehäuse einer horizontalen Vollmantel-Schneckenzentrifuge
DE19953396C2 (de) * 1999-11-06 2003-06-26 Flottweg Gmbh Vollmantelzentrifuge
CN2448990Y (zh) * 2000-09-08 2001-09-19 杭州通惠海宜电讯设备有限公司 复合式轴承密封圈
DE10148774B4 (de) * 2001-10-02 2005-08-11 Westfalia Separator Ag Vollmantel-Schneckenzentrifuge mit Druckgehäuse
DE10223802B4 (de) * 2002-05-29 2005-06-09 Westfalia Separator Ag Vollmantel-Schneckenzentrifuge

Also Published As

Publication number Publication date
US20040185999A1 (en) 2004-09-23
EP1432521A1 (de) 2004-06-30
DE10148774A1 (de) 2003-04-17
CN1293947C (zh) 2007-01-10
WO2003031073A1 (de) 2003-04-17
DE10148774B4 (de) 2005-08-11
CA2462585C (en) 2010-05-04
US6986733B2 (en) 2006-01-17
CA2462585A1 (en) 2003-04-17
CN1564714A (zh) 2005-01-12

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