EP1509329B1 - Vollmantel-schneckenzentrifuge mit schälscheibe und hydrohermetischer abdichtung sowie verfahren zu deren betrieb - Google Patents

Vollmantel-schneckenzentrifuge mit schälscheibe und hydrohermetischer abdichtung sowie verfahren zu deren betrieb Download PDF

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Publication number
EP1509329B1
EP1509329B1 EP03730121A EP03730121A EP1509329B1 EP 1509329 B1 EP1509329 B1 EP 1509329B1 EP 03730121 A EP03730121 A EP 03730121A EP 03730121 A EP03730121 A EP 03730121A EP 1509329 B1 EP1509329 B1 EP 1509329B1
Authority
EP
European Patent Office
Prior art keywords
chamber
solid
barrier
screw centrifuge
disk
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
EP03730121A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1509329A1 (de
Inventor
Wilhelm Ostkamp
Franz Kramer
Wolf-Dietrich Herberg
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
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 Westfalia Separator GmbH filed Critical Westfalia Separator GmbH
Publication of EP1509329A1 publication Critical patent/EP1509329A1/de
Application granted granted Critical
Publication of EP1509329B1 publication Critical patent/EP1509329B1/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
    • 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 and a method for its operation according to claim 14.
  • a generic solid bowl screw centrifuge shows the DE 195 00 600th C1.
  • DE 40 14 552 C1 shows a separator with a vertical axis of rotation with a Peeling disc and a locking disc, between which a gas can be fed to to prevent degassing of solvents.
  • the invention is also a simple method for operating the invention be created according to the centrifuge. This is specified in claim 14.
  • the barrier chamber with barrier fluid supply - in combination with the two locks or Siphonusionn - allows for structurally simple and cost-effective Make a reliable seal of the centrifugal space against the surrounding The atmosphere.
  • the generic DE 198 30 653 C1 can through the labyrinth seal
  • the product, on the other hand, is in contact with the surrounding atmosphere come.
  • Locking chambers are also of centrifuges with vertical axis of rotation itself known, in which also a separate barrier liquid is passed (DE 196 31 226). Locking chambers in such separators are also known from DE 657 473 known. However, it has not been considered and probably not as beneficial considers, even with centrifuges with horizontal axis of rotation to realize a barrier chamber, which with a separate, independent of the centrifugal barrier fluid is charged.
  • the lock or siphon disc in the lock chamber can easily a sufficient pressure is built up so that a gas such as CO2 in the liquid (sphase) is held.
  • a gas such as CO2 in the liquid (sphase)
  • the pressure in the barrier chamber is variable, which preferably up to 4bar, in particular 0.5 to 2.5bar. The pressure affects the type of Promotion of the solid and / or its consistency.
  • the supply line opens into an annular space of the blocking chamber and a drain hole, which the continuous feeding and deriving the Allow barrier fluid in and out of the lock chamber.
  • This will open much simpler way than in DE 196 31 226 A1 continuous cleaning the lock chamber feasible and thus the formation of deposits in the lock chamber effectively prevented.
  • the centrifuge is also high hygiene requirements just.
  • a dissolved gas such as CO 2 can be kept at least largely in the liquid to be discharged or processed, which greatly simplifies the processing of products such as beer.
  • the lock chamber as the paring disc with respect to the Main bearing of the drum drum side or arranged towards the drum what it makes it possible to design the construction very simply. This does not result only a permanent seal against the surrounding atmosphere but u.U. also a seal against product contamination by oil mist of the liquid side Main camp (not shown here).
  • Fig. 1 shows a solid bowl screw centrifuge 1 with a drum 3 with a horizontal axis of rotation, in which a screw 5 is arranged.
  • the drum 3 and the screw 5 each have a substantially cylindrical portion and a conically tapering section here.
  • An axially extending centric inlet pipe 7 serves to supply the Spent material 8 via a here to the inlet pipe 7 vertical distributor 9 in the Centrifugal space 11 between the screw 5 and the drum.
  • the bearing with the bearing 6 screw 5 rotates with a slightly smaller or greater speed than the drum 3 and promotes the ejected Solid S to the conical section out of the drum 3 to a solids discharge (not shown here).
  • the liquid flows to the larger drum diameter at the rear End of the cylindrical portion of the drum 3 and is there through a weir 15 in an axially adjoining the actual Schleudenaum chamber 17th passed with a smaller diameter compared to the centrifugal space.
  • a paring disc 19 for the derivation of Liquid phase L arranged, which is followed by a discharge channel 20, the the liquid phase L is derived from the drum 3.
  • the peeling disc 19 is direct arranged on the stationary in operation inlet pipe 7, wherein between peeling disk 19 and inlet pipe 7 a sealed gap-free arrangement is realized.
  • annular shoulder 23 is arranged, which radially from the inner periphery of Chamber 17 extends inwards.
  • the chamber 17 zoom in radially inwards to near the inlet pipe or to a diameter which is smaller than the diameter of the screw 5 and opens into an axial passage 27, to which in the axial direction as a barrier chamber acting annular space 29 connects, which in turn in an axial Abtechnischskanal 31 for sealing fluid on the outer circumference of the inlet pipe 7 and the discharge channel 21 opens for the centrifuged, wherein the inner diameter of the discharge channel 31 for sealing liquid is smaller than the inner diameter the passage 27, so that from the lock chamber 19 overflowing barrier fluid runs through the discharge channel 31.
  • Siphon or locking disc 33 arranged stationary, which is from the inside extends radially outwardly into the lock chamber.
  • a leading from the outside into the centrifuge feed line 35 - here parallel to Inlet pipe 7 arranged on the outer circumference - allows the direct supply one of the centrifugal independent barrier fluid such as water from the inside the lock chamber 29.
  • a drain hole 37 - here at the outer periphery of the annular space 29 at an acute angle leading to the axis of rotation radially outward from the drum 3 - allows the continuous Deriving the barrier liquid from the annular space 29, which is an advantageous continuously cleaning causes.

Landscapes

  • Centrifugal Separators (AREA)
  • Sealing Devices (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Refuse Collection And Transfer (AREA)
EP03730121A 2002-05-29 2003-05-27 Vollmantel-schneckenzentrifuge mit schälscheibe und hydrohermetischer abdichtung sowie verfahren zu deren betrieb Expired - Lifetime EP1509329B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10223802A DE10223802B4 (de) 2002-05-29 2002-05-29 Vollmantel-Schneckenzentrifuge
DE10223802 2002-05-29
PCT/EP2003/005530 WO2003099446A1 (de) 2002-05-29 2003-05-27 Vollmantel-schneckenzentrifuge mit schälscheibe und hydrohermetischer abdichtun g sowie verfahren zu deren betrieb

Publications (2)

Publication Number Publication Date
EP1509329A1 EP1509329A1 (de) 2005-03-02
EP1509329B1 true EP1509329B1 (de) 2005-11-09

Family

ID=29557371

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03730121A Expired - Lifetime EP1509329B1 (de) 2002-05-29 2003-05-27 Vollmantel-schneckenzentrifuge mit schälscheibe und hydrohermetischer abdichtung sowie verfahren zu deren betrieb

Country Status (14)

Country Link
US (1) US7056273B2 (es)
EP (1) EP1509329B1 (es)
AT (1) ATE309050T1 (es)
AU (1) AU2003240718B2 (es)
BR (1) BR0311565B1 (es)
CA (1) CA2485082C (es)
DE (2) DE10223802B4 (es)
DK (1) DK1509329T3 (es)
ES (1) ES2248753T4 (es)
MX (1) MXPA04011892A (es)
PL (1) PL200041B1 (es)
RU (1) RU2283188C2 (es)
UA (1) UA78059C2 (es)
WO (1) WO2003099446A1 (es)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
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DE10148774B4 (de) * 2001-10-02 2005-08-11 Westfalia Separator Ag Vollmantel-Schneckenzentrifuge mit Druckgehäuse
DE10212187A1 (de) * 2002-03-20 2003-10-02 Hiller Gmbh Schneckenzentrifuge
DE10223802B4 (de) * 2002-05-29 2005-06-09 Westfalia Separator Ag Vollmantel-Schneckenzentrifuge
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
DE102006006178A1 (de) 2006-02-10 2007-08-16 Westfalia Separator Ag Vollmantel-Schneckenzentrifuge und Verfahren zu deren Betrieb
US8192342B2 (en) 2006-05-11 2012-06-05 Westfalia Separator Ag Separator having a liquid outlet including a throttling device
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
ES2807592T3 (es) * 2015-04-24 2021-02-23 Alfa Laval Corp Ab Separador centrífugo y métodos relacionados con el mismo
EP3398687B1 (en) * 2017-05-04 2020-03-18 Andritz S.A.S. Decanter centrifuge
RU209116U1 (ru) * 2021-05-17 2022-02-02 Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" (Госкорпорация "Росатом") Шнек барабана-испарителя для очистки его внутренней поверхности

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Also Published As

Publication number Publication date
DE10223802B4 (de) 2005-06-09
US20050227848A1 (en) 2005-10-13
RU2004139021A (ru) 2005-07-10
PL200041B1 (pl) 2008-11-28
AU2003240718B2 (en) 2008-10-02
DK1509329T3 (da) 2006-01-30
WO2003099446A1 (de) 2003-12-04
RU2283188C2 (ru) 2006-09-10
US7056273B2 (en) 2006-06-06
UA78059C2 (en) 2007-02-15
MXPA04011892A (es) 2005-11-23
PL372242A1 (en) 2005-07-11
DE50301628D1 (de) 2005-12-15
ES2248753T3 (es) 2006-03-16
BR0311565A (pt) 2007-04-27
ES2248753T4 (es) 2008-08-01
CA2485082C (en) 2008-03-18
CA2485082A1 (en) 2003-12-04
EP1509329A1 (de) 2005-03-02
DE10223802A1 (de) 2003-12-18
AU2003240718A1 (en) 2003-12-12
ATE309050T1 (de) 2005-11-15
BR0311565B1 (pt) 2011-08-23

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