EP1998896A1 - Centrifugeuse a vis et enveloppe pleine dotee d'ouvertures d'evacuation pour le vidage partiel et le vidage residuel du tambour - Google Patents

Centrifugeuse a vis et enveloppe pleine dotee d'ouvertures d'evacuation pour le vidage partiel et le vidage residuel du tambour

Info

Publication number
EP1998896A1
EP1998896A1 EP07727173A EP07727173A EP1998896A1 EP 1998896 A1 EP1998896 A1 EP 1998896A1 EP 07727173 A EP07727173 A EP 07727173A EP 07727173 A EP07727173 A EP 07727173A EP 1998896 A1 EP1998896 A1 EP 1998896A1
Authority
EP
European Patent Office
Prior art keywords
drum
centrifuge according
solid bowl
ring
chamber
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
EP07727173A
Other languages
German (de)
English (en)
Other versions
EP1998896B1 (fr
Inventor
Ludger HORSTKÖTTER
Hans-Joachim Beyer
Ulrich Horbach
Johannes Droste
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 Westfalia Separator 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 Westfalia Separator GmbH filed Critical GEA Westfalia Separator GmbH
Publication of EP1998896A1 publication Critical patent/EP1998896A1/fr
Application granted granted Critical
Publication of EP1998896B1 publication Critical patent/EP1998896B1/fr
Not-in-force 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
    • B04B1/20—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
    • 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.
  • Solid bowl centrifuges are known in various embodiments.
  • the liquid ring in the drum breaks down below a limit speed, so that the residual liquid collects at the bottom of the drum.
  • the discharge openings are arranged axially in front of the continuously acting liquid discharge, which takes place in particular by means of a paring disc or by means of further openings in the drum lid.
  • Abschöffhungen are formed in such a drum shell of the drum that they are radially outside a separating and / or Klärtellerverses of plates, wherein the Klärtellervol is connected upstream of the continuous remplisstechniksaustrag.
  • Plate packs in decanters are e.g. from DE 100 65 060 Al known.
  • the supplemental drainage holes are particularly useful because they can be used not only to drain a residual liquid level but also to partially empty (e.g., a partial volume of 10 liters) during full speed production or processing.
  • an arrangement of the drainage openings in the drum cover can be realized.
  • non-generic, self-draining drum separators are known, as from DE 38 21 486 Al or DE 38 29 158 Al, the annular slide for closing Feststoffaustragsötechnische have.
  • additional discharge openings are now provided which do not replace but supplement the continuous solids discharge openings at the conical end of the drum in order to simplify, in particular, emptying of the drum. Further advantageous embodiments can be found in the remaining subclaims.
  • FIG. 4 shows a detail view of a third solid bowl screw centrifuge in a first operating position
  • the solid bowl screw centrifuge serves to separate at least one solid phase and one or more liquid phases into a product passed through an inlet pipe 5 and a distributor 6 into the centrifugal space 7 in the drum 1. Due to the density difference, the solid phase accumulates outside in the drum 1, from where it is continuously conveyed from the drum 1 in the direction of a solids discharge 8 at the tapering end of the drum 1 and through the solids discharge 8.
  • the at least one liquid phase is continuously discharged at the opposite end of the drum by at least one liquid discharge.
  • This liquid discharge can be realized according to the invention in a generic drum according to the type of FIG. 5 in various ways.
  • Such constructions NEN, which can be used in a decanter, which otherwise may correspond to that of FIG. 5, are shown in FIGS. 1 to 4.
  • a drum cover 14 closing off the drum 1 at the cylindrical end has at least one weir-like passage opening 9 which forms the liquid discharge (indicated in FIGS. 2 and 3). But it is also a derivative in another form, e.g. through a paring disc 22 (Fig. 1) possible. If several liquid phases are to be discharged, these are removed by liquid outlets at different radii of the centrifugal space 7. The liquid discharge takes place continuously.
  • the centrifuge of FIG. 5 has further outflow openings 10, which are advantageously distributed circumferentially on the outer circumference of the drum shell, to which a closure device is assigned, which makes it possible to open the outflow openings during operation To open drum 1 and close.
  • the discharge openings 10 are distributed around the circumference.
  • the fact that the drainage openings 10 are formed and distributed directly in the drum casing 15 has the advantage that they can be easily formed as openings in this component and that a guide of drainage channels through the drum cover 14 is not necessary.
  • the closure device for the Abpoundöffhungen 10 is formed as shown in FIG. 1 in a simple constructive design as a cylindrical ring 11 which rotates during operation with the drum 1 and on the drum 1 and / or the drum cover 14 and / or one connected to the drum lid Component is guided axially displaceable.
  • the discharge openings 10 are formed axially just before the drum cover 14 facing end portion of the drum shell.
  • the drum shell has on his axial end in front of the drum cover 14 on a radially projecting collar 15, which is provided with a gradation 12. According to Fig. 1 to 3, the drainage openings are advantageously formed in this area.
  • the ring 11 is guided here displaceably on the outer circumference of the drum cover 14.
  • the ring 11 rotates during operation with the drum 1, it is necessary to be able to move it axially in operation in a simple manner. This is preferably effected fluidically, in particular hydraulically.
  • an advantageous hydraulic chamber 13 shown by way of example, is formed in the drum cover 14, into which an inner, preferably disk-like, radial projection 16 of the ring 11 extends, so that on one side of the projection 16 there is an opening chamber 13a (here left of the approach) and on the other side of the approach a closing chamber 13b is formed.
  • the ⁇ ffhungshunt has a greater radial extent than the lock chamber 13b.
  • the projection 16 extends radially from outside to inside into the hydraulic chamber 13. Radially inward, the ⁇ ffhungshunt 13a and the closing chamber 13b are in operative connection.
  • Ribs 28 are arranged in the annular chamber 24 in order to take along the fluid, in particular water, which passes from the supply line 18, which is not rotating during operation, into the rotating annular chamber 24.
  • the function of the hydraulic chamber 13 is as follows:
  • sealing ring 31 between the drum cover 14 and the drum 1 and there is a sealing ring 32 between the ring 19 and the drum cover 14. Also between the drum cover 14 and the part 23, a sealing ring 33 is disposed around the hydraulic line 17 around. Additional seals 35, 36 can be found inside the paring disc.
  • the drainage openings 10 are then preferably formed in the drum shell of the drum 1 in such a way that they lie radially outside the separating and / or separating plate pact, which is downstream of the screw 4 and upstream of the liquid discharge 9.
  • drum cover is internally conical, so that on its outer peripheral contour is a very good possibility to accommodate the mechanism or here the hydraulic system for moving the ring 11.
  • the hydraulic chamber has a ⁇ ffhungshunt and that one or more spring elements are provided for generating the closing force on the ring (not shown).
  • the discharge openings 10 are formed axially in the end facing the drum 1 of the drum cover 14.
  • the drum cover 14 also has, at its axial end in front of the drum 1, preferably a radially projecting collar 37, which is provided with the step 12 and here outwardly aligned with the collar 15 of the drum 1.
  • the ring 11 is in turn guided displaceably on the outer circumference of the drum cover 14 here.

Landscapes

  • Centrifugal Separators (AREA)

Abstract

L'invention concerne une centrifugeuse à vis et enveloppe pleine dotée d'un tambour (1) qui peut tourner autour d'un axe de préférence horizontal et dans lequel est disposée une vis rotative (4), ainsi que d'une extraction continue de solides (8) à une extrémité du tambour (1) et qu'une extraction continue de liquide à l'extrémité opposée du tambour (1), et d'au moins une ou plusieurs autres ouvertures d'évacuation (10) dotées d'un dispositif de fermeture et qui agissent de manière discontinue. La centrifugeuse est caractérisée en ce qu'à la ou les autres ouvertures d'évacuation (10) est associé un anneau (11) qui sert de dispositif de fermeture, qui peut coulisser axialement par rapport à l'axe du tambour et qui tourne avec le tambour (1) lorsque ce dernier est en fonctionnement, un dispositif d'actionnement par lequel l'anneau peut être déplacé dans une position qui ouvre les ouvertures d'évacuation (10) et une position qui les ferme étant associé à l'anneau.
EP07727173.2A 2006-03-30 2007-03-21 Centrifugeuse a vis et enveloppe pleine dotee d'ouvertures d'evacuation pour le vidage partiel et le vidage residuel du tambour Not-in-force EP1998896B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102006015211 2006-03-30
DE102006030477A DE102006030477A1 (de) 2006-03-30 2006-07-01 Vollmantel-Schneckenzentrifuge mit Abflußöffnungen zur Teil- und Restentleerung der Trommel
PCT/EP2007/052697 WO2007113113A1 (fr) 2006-03-30 2007-03-21 Centrifugeuse a vis et enveloppe pleine dotee d'ouvertures d'evacuation pour le vidage partiel et le vidage residuel du tambour

Publications (2)

Publication Number Publication Date
EP1998896A1 true EP1998896A1 (fr) 2008-12-10
EP1998896B1 EP1998896B1 (fr) 2017-12-13

Family

ID=38008353

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07727173.2A Not-in-force EP1998896B1 (fr) 2006-03-30 2007-03-21 Centrifugeuse a vis et enveloppe pleine dotee d'ouvertures d'evacuation pour le vidage partiel et le vidage residuel du tambour

Country Status (8)

Country Link
US (1) US8465405B2 (fr)
EP (1) EP1998896B1 (fr)
CN (1) CN101516519B (fr)
AR (1) AR060333A1 (fr)
CL (1) CL2007000871A1 (fr)
DE (1) DE102006030477A1 (fr)
RU (1) RU2442659C2 (fr)
WO (1) WO2007113113A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10336350B4 (de) * 2003-08-08 2007-10-31 Westfalia Separator Ag Vollmantel-Schneckenzentrifuge, mit Schälscheibe
US8579783B2 (en) * 2009-07-02 2013-11-12 Andritz S.A.S. Weir and choke plate for solid bowl centrifuge
DK178254B1 (en) 2010-11-12 2015-10-12 Alfa Laval Corp Ab Centrifugal separator, abrasion resistant element and set of abrasion resistant elements for a centrifugal separator
CN107321507A (zh) * 2017-05-27 2017-11-07 宜兴市华鼎机械有限公司 一种可清除积液的卧式离心机

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB998669A (en) * 1964-06-18 1965-07-21 Starcosa Gmbh Centrifugal separators
DE3620912A1 (de) * 1986-06-21 1987-12-23 Kloeckner Humboldt Deutz Ag Zentrifuge zum kontinuierlichen trennen von stoffen unterschiedlicher dichte
DE3728901C1 (en) * 1987-08-29 1988-11-17 Westfalia Separator Ag Weir for adjusting the level of liquid in solid-bowl centrifuge drums of worm centrifuges
DE3821486A1 (de) * 1988-06-25 1989-12-28 Westfalia Separator Ag Selbstentleerende schleudertrommel
DE3829158A1 (de) * 1988-08-27 1990-03-01 Heckmann Wolfgang Selbstentleerender trommelseparator
CN1033162A (zh) * 1988-12-06 1989-05-31 苏州市化工设备三厂 螺旋卸料沉降离心机
DE3911320A1 (de) * 1989-04-07 1990-10-11 Kloeckner Humboldt Deutz Ag Zentrifuge zum kontinuierlichen trennen von stoffen unterschiedlicher dichte
DE3921327A1 (de) * 1989-06-29 1991-01-03 Kloeckner Humboldt Deutz Ag Wehr zum einstellen des fluessigkeitsstandes in vollmantelzentrifugen
DE4130759A1 (de) * 1991-09-16 1993-03-18 Flottweg Gmbh Zentrifuge zur kontinuierlichen trennung von stoffen unterschiedlicher dichte
DE4320265C2 (de) * 1993-06-18 1995-08-03 Westfalia Separator Ag Wehr für Vollmantelschleudertrommeln
JP4153138B2 (ja) * 2000-02-10 2008-09-17 株式会社クボタ 遠心分離装置
DE10021983A1 (de) * 2000-05-05 2001-11-08 Baker Hughes De Gmbh Vollmantelzentrifuge zur Trennung von Feststoff-Flüssigkeitsgemischen
DE10065060B4 (de) 2000-12-27 2004-07-08 Westfalia Separator Ag Vollmantel-Schneckenzentrifuge mit Tellereinsatz
DE10148774B4 (de) * 2001-10-02 2005-08-11 Westfalia Separator Ag Vollmantel-Schneckenzentrifuge mit Druckgehäuse
JP3942402B2 (ja) * 2001-11-01 2007-07-11 寿工業株式会社 遠心分離装置
DE10203652B4 (de) * 2002-01-30 2006-10-19 Westfalia Separator Ag Vollmantel-Schneckenzentrifuge mit einem Wehr
DE10209925B4 (de) * 2002-03-07 2010-06-17 Gea Westfalia Separator Gmbh Dreiphasen-Vollmantel-Schneckenzentrifuge, Vollmantel-Schneckenzentrifuge und Verfahren zum Betreiben einer Dreiphasen-Vollmantel-Schneckenzentrifuge
DE10212187A1 (de) * 2002-03-20 2003-10-02 Hiller Gmbh Schneckenzentrifuge
RU2253513C2 (ru) * 2002-11-10 2005-06-10 Тарасов Юрий Дмитриевич Фильтрующая центрифуга для обезвоживания сапропеля
DE10336350B4 (de) * 2003-08-08 2007-10-31 Westfalia Separator Ag Vollmantel-Schneckenzentrifuge, mit Schälscheibe

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007113113A1 *

Also Published As

Publication number Publication date
AR060333A1 (es) 2008-06-11
RU2442659C2 (ru) 2012-02-20
CN101516519A (zh) 2009-08-26
WO2007113113A1 (fr) 2007-10-11
RU2008142859A (ru) 2010-05-10
EP1998896B1 (fr) 2017-12-13
CN101516519B (zh) 2013-12-18
US8465405B2 (en) 2013-06-18
CL2007000871A1 (es) 2011-03-25
US20100035742A1 (en) 2010-02-11
DE102006030477A1 (de) 2007-10-04

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