EP1038584A1 - Centrifugeuse avec arrêt pour dispositif d'écumage - Google Patents

Centrifugeuse avec arrêt pour dispositif d'écumage Download PDF

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Publication number
EP1038584A1
EP1038584A1 EP00100531A EP00100531A EP1038584A1 EP 1038584 A1 EP1038584 A1 EP 1038584A1 EP 00100531 A EP00100531 A EP 00100531A EP 00100531 A EP00100531 A EP 00100531A EP 1038584 A1 EP1038584 A1 EP 1038584A1
Authority
EP
European Patent Office
Prior art keywords
peeling disc
peeling
shaft
outer part
disc shaft
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
EP00100531A
Other languages
German (de)
English (en)
Other versions
EP1038584B1 (fr
Inventor
Willi Niemerg
Angelika Voltmann
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 EP1038584A1 publication Critical patent/EP1038584A1/fr
Application granted granted Critical
Publication of EP1038584B1 publication Critical patent/EP1038584B1/fr
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
    • B04B1/04—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with inserted separating walls
    • B04B1/08—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with inserted separating walls of conical shape

Definitions

  • the invention relates to a centrifuge which has the following: a centrifugal drum and at least one peeling disc for draining liquid from the Centrifugal drum, the peeling disc having a peeling disc shaft and a Includes peeling disc outer part, between which or in which at least one Discharge channel is formed.
  • centrifuge is known from US 2,171,136. At the in this scripture shown centrifuge are a peeling disc lower part and the peeling disc shaft formed in one piece, the channels on the peeling disc shaft as well the entire combination element from the peeling disc shaft and the peeling disc lower part complex - for example by means of lengthy form milling processes Need to become.
  • the peeling disc top part is used in the in this document State of the art shown on the peeling disc lower part on the peeling disc shaft screwed on and is because of peeling disc lower part and peeling disc shaft are formed in one piece, in this way against rotation on the peeling disc shaft fixed.
  • the peeling disc outer parts in this case by means of special locking devices attached to the peeling shaft. Locking devices are conceivable in Form of feather keys on the shaft. With this solution, too, the discharge channels usually formed on the shaft by complex form milling operations. The separately designed locking devices can lead to large overflow diameters lead the peeling disc chamber, whereby the available discharge pressure of the Peeling organ is limited.
  • the invention aims to to create a centrifuge with a space-saving and inexpensive anti-rotation device of the peeling disc outer part on the peeling disc shaft which also meets the requirements for sanitary cleaning.
  • the invention achieves this aim by the subject matter of claim 1.
  • the outer contour or the outer circumference of the peeling disc shaft and the inner contour or the inner circumference of the peeling disc outer part and / or the inner contours of other elements pushed onto the peeling disc shaft interlock such that the peeling discs -Exterior part and / or the other elements on the peeling disc shaft without additional separate "locking elements are / are locked against rotation.
  • a separate locking device is thus dispensed with.
  • the invention also enables sanitary cleaning, since gaps and feather key connections be saved.
  • the invention has a particularly advantageous effect if the outer contour of the peeling disc shaft is designed essentially as a regular polygon (triangle, square, etc.) and if the inner contour of the outer part of the peeling disc deviates at least in sections from the polygonal outer contour of the peeling disc shaft such that between the outer and the inner contour of at least one of the discharge channels is formed. In this way, there is no need to shape the drainage channels separately. Rather, the discharge channels already arise during the shaping of the peeling shaft and the other elements fastened to the peeling disk shaft automatically "with.
  • peeling disc shaft Other elements that are placed on the peeling disc shaft are second peeling discs or lid conceivable. With these elements, too use advantageous square fuse.
  • channel training can be particularly simple through appropriate Realize the geometry in that the outer contour of the peeling disc shaft essentially rectangular - in particular square - and the inner contour of the peeling discs and / or the cover is round at least in sections is trained. Between a completely circular inner contour and one rectangular or even square outer contour of the peeling disc shaft coordinated dimensions are then created as four drainage channels Circular segments. In this case the outer part of the peeling disc is locked ensures on the peeling disc shaft that the square engages in recesses of the peeling disc outer part, which otherwise of the circular inner contour are introduced into the peeling disc.
  • the geometry of the peeling disc outer part Sections can also be changed in such a way that circle segments with little Diameters act as drainage channels, with the centers of these circle segments offset radially outwards from the center of the square are. Additional recesses in the inner circumference of the peeling disc outer part grasp the corners of the peeling disc shaft with this design on.
  • Fig. 1 shows a centrifuge designed as a separator, which is known per se
  • a centrifugal drum (only partially shown here, continued downwards) 2 for separating a centrifugal material into different components having.
  • the centrifuge or the centrifugal liquid is shown in the illustration 1, for example, from above through a central inlet or an inlet pipe 4 in the direction of arrow P in the centrifugal drum 2.
  • the discharge of liquid emerging from the centrifugal drum 2 takes place in a peeling chamber 6 with the help of a peeling disc 8, which results from the interaction of the inlet pipe 4 - which in sections as part of the peeling disc shaft 10 serves - is formed with the peeling disc outer part 12 .
  • the peeling disc outer part 12 has a lower annular disk-like section 14, to which an axially extending, tubular extension 16 is formed, wherein the peeling disc shaft 10 completes the peeling slide 8 as a continuous inner part.
  • Discharge channels 18 are formed in the annular disk-like section 16 from the outer circumference of the peeling disc 8 to the inside and between Peeling disc shaft 10 and peeling disc outer part 12 in an axially upward direction passing section 18 '.
  • a second peeling disc 24 placed over the inlet pipe 4 can serve to derive a second liquid phase.
  • the second peeling disc 24 in turn has an annular disk-like section 26 to which a is integrally formed on axially extending, tubular extension 28.
  • drainage channels 30 are formed which extend from the lower outer circumference of the peeling disc 24 run inwards and in the tubular Approach 28 are extended upwards. Between the inner wall of the Peeling disk 24 and the outer wall of the inlet pipe 4 is also another axial extension 18 '' of the discharge channel 18 is formed upwards.
  • a cover 32 is placed, which is also on the Inlet pipe 4 is pushed and between its inner wall and the outer wall of the inlet pipe four a further axial extension 18 '' of the discharge channel is trained.
  • the discharge duct 18 or the extension 18 '' ' opens into a discharge ring chamber 34, from which the from the first peeling disc 8 detected first liquid phase is guided into a drain pipe 35.
  • the Unit of the peeling discs 8.24 is clamped to the cover 32 by means of a nut 42.
  • the inlet pipe 4 is from the area of the first (or FIG. 1 of the lower) peeling disk 8 continuously to the discharge ring chamber 34 with a substantially square Provide outer contour.
  • the corners of this outer contour are slightly chamfered (see square 36 in Fig. 1b, 1c and 2).
  • the peeling disc outer part 12 has at least in sections has an inner diameter D, which is the diagonal X between two opposite corners 36 'and 36' 'of the square 36 is adapted (see. Fig. 1b and 1c).
  • the channels 18 are thus in this area through the circular sectors 38 (see exemplary vertical dashing in FIG. 2 in the lower Sector 38 between square 36 and outer disc part 12) formed.
  • the anti-rotation lock is implemented by that the inner contour of the peeling disc outer part 12 in its upper axial Area, i.e. not continuous in the area of the tubular section 14 is circular. Rather, they are based on the circular Form four circular sectors K1, K2 provided, the radius of which is smaller than the radius D / 2 of the peeling disc outer part 12.
  • the center M 'of the circular sectors K1, K2, K3, K4 radially opposite the center M of the square 36 after offset outside.
  • Circle sectors K1, K2, K3, K4 (the upper of these sectors is K1 recognizable by an oblique dashed line) to divert liquid the peeling disc outer part 12 and the peeling disc shaft 10.
  • the actual locking is done by additional cutouts 40 in the peeling disc outer part 12 reached. These millings are such that they cover the corners of the Border square 34. There is no need for a separate lock.
  • the Square 34 can be cut by relatively uncomplicated milling of the outer circumference of the peeling disc shaft 10.
  • the circle segments K could theoretically be designed as polygonal edges.
  • the fastening is also carried out analogously to the fastening of the outer peeling disc part 12 the second peeling disc 24 and the attachment of the lid 32 on the Inlet pipe 4.
  • These elements also have an inner contour, which a twist-proof lock on the axially elongated outer square 36 allows.
  • the second peeling disc 24 has in its lower region and the cover 32 in its upper area milled 40 in the corners of the square 36 on The advantageous square fuse extends here from the peeling disc outer part 12 to the discharge chamber 34.

Landscapes

  • Centrifugal Separators (AREA)
EP20000100531 1999-03-22 2000-01-12 Centrifugeuse avec arrêt pour dispositif d'écumage Expired - Lifetime EP1038584B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19912773 1999-03-22
DE1999112773 DE19912773C1 (de) 1999-03-22 1999-03-22 Zentrifuge mit Schälscheibenarretierung

Publications (2)

Publication Number Publication Date
EP1038584A1 true EP1038584A1 (fr) 2000-09-27
EP1038584B1 EP1038584B1 (fr) 2006-11-22

Family

ID=7901892

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000100531 Expired - Lifetime EP1038584B1 (fr) 1999-03-22 2000-01-12 Centrifugeuse avec arrêt pour dispositif d'écumage

Country Status (3)

Country Link
EP (1) EP1038584B1 (fr)
DE (1) DE19912773C1 (fr)
DK (1) DK1038584T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7041045B2 (en) * 2001-09-05 2006-05-09 Westfalia Separator Ag Skimmer device for discharging liquid from a centrifugal drum

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10311610B4 (de) 2003-03-14 2005-04-28 Westfalia Separator Ag Schälscheibe für einen Separator
DE202008011597U1 (de) 2008-08-30 2010-01-07 Gea Westfalia Separator Gmbh Schälscheibe einer Zentrifuge

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE405301C (de) * 1922-04-08 1924-10-30 Turbo Separator As Milchschleuder
US2171136A (en) * 1934-09-01 1939-08-29 Laval Separator Co De Centrifugal separator provided with special discharges
US3365128A (en) * 1965-06-29 1968-01-23 Pennsalt Chemicals Corp Industrial process and apparatus
DE2846403B1 (de) * 1978-10-25 1980-03-27 Westfalia Separator Ag Armaturenanordnung an Zentrifugen mit vertikaler Drehachse

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE405301C (de) * 1922-04-08 1924-10-30 Turbo Separator As Milchschleuder
US2171136A (en) * 1934-09-01 1939-08-29 Laval Separator Co De Centrifugal separator provided with special discharges
US3365128A (en) * 1965-06-29 1968-01-23 Pennsalt Chemicals Corp Industrial process and apparatus
DE2846403B1 (de) * 1978-10-25 1980-03-27 Westfalia Separator Ag Armaturenanordnung an Zentrifugen mit vertikaler Drehachse

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7041045B2 (en) * 2001-09-05 2006-05-09 Westfalia Separator Ag Skimmer device for discharging liquid from a centrifugal drum

Also Published As

Publication number Publication date
DE19912773C1 (de) 2000-12-14
DK1038584T3 (da) 2007-03-26
EP1038584B1 (fr) 2006-11-22

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