EP3645169B1 - Separator mit direktantrieb - Google Patents

Separator mit direktantrieb Download PDF

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Publication number
EP3645169B1
EP3645169B1 EP18735267.9A EP18735267A EP3645169B1 EP 3645169 B1 EP3645169 B1 EP 3645169B1 EP 18735267 A EP18735267 A EP 18735267A EP 3645169 B1 EP3645169 B1 EP 3645169B1
Authority
EP
European Patent Office
Prior art keywords
drive
separator
annular flange
drum
system unit
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.)
Active
Application number
EP18735267.9A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3645169A1 (de
Inventor
Tim Hundertmark
Johannes Droste
Jürgen Mackel
Eduard BRAK
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 EP3645169A1 publication Critical patent/EP3645169A1/de
Application granted granted Critical
Publication of EP3645169B1 publication Critical patent/EP3645169B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B9/00—Drives specially designed for centrifuges; Arrangement or disposition of transmission gearing; Suspending or balancing rotary bowls
    • B04B9/02—Electric motor drives
    • B04B9/04—Direct drive
    • 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
    • B04B9/00—Drives specially designed for centrifuges; Arrangement or disposition of transmission gearing; Suspending or balancing rotary bowls
    • B04B9/12—Suspending rotary bowls ; Bearings; Packings for bearings
    • 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
    • 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
    • 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
    • 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
    • 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

Definitions

  • the invention relates to a separator having the features of the preamble of claim 1 and a method for its assembly.
  • Such separators which are also suitable for industrial use and can preferably be used in continuous operation, are known per se from the prior art.
  • WO 2004/089550 called, in which the drum, the drive spindle and the electric drive motor are also rigidly connected to form a structural unit, which can then be supported as a whole on a machine frame.
  • the one or more liquid phases are discharged via one or more peeling disks which are stationary relative to the drum during operation and which are designed as centripetal pumps.
  • the one or more peeling disks do not rotate with the drum during operation. However, they are arranged in the peeling chambers of the system that rotates during operation. For this reason, the one or more peeling disks in the one or more must be in operation rotating peeling chambers are arranged in such a way that such a distance is always maintained between the parts rotating during operation and the parts not rotating during operation that the elements rotating during operation and non-rotating elements do not touch each other.
  • the invention has the object of solving the problem of setting the relative axial distance between elements of the system rotating during operation and elements of the non-rotating system of a separator in a simple manner.
  • the invention achieves this object by the subject matter of claim 1. It also achieves this object by the method of claim 18.
  • a separator which has the following: a preassembled drive and rotation system unit with an outer ring flange section, a drive frame with an inner ring flange, the outer ring flange section of the preassembled drive and rotation system unit being vertically connected to the inner ring flange of the drive frame, wherein a rotatable drum is placed on the preassembled drive and rotating system unit, and wherein at least one peeling disk is arranged in the drum in a peeling chamber, which is axially rigidly connected as a whole to the drive frame, and between the inner ring flange and the outer ring flange section one or a plurality of stacks of one or more stackable intermediate elements each for setting an axial relative position is / are distributed at least between the drive frame on the one hand and the drive and rotating system unit on the other hand, and with the gaps lementen also the axial relative position between the drum and the at least one paring disc is adjustable.
  • a hood construction can be placed on the drive frame, which is attached to the drive frame and surrounds the drum, the peeling disk being fastened to the hood construction so that the peeling disk is axially rigidly connected to the drive frame.
  • the drive frame with the inner ring flange is designed in the manner of an outer housing and takes on the function of a machine frame.
  • the outer ring flange section of the preassembled drive and rotating system unit rests on the inner ring flange of the drive frame.
  • the outer ring flange section of the preassembled drive and rotating system unit can be arranged below the inner ring flange of the drive frame.
  • the intermediate elements are each arranged between the inner ring flange and the outer ring flange section.
  • the vertical distance between the drive frame and also that of an axially rigidly connected peeling disk and the drive and rotating system unit and a drum arranged on it can be or is set in a surprisingly simple manner.
  • an adjustment of the relative axial distance between elements of the system rotating during operation and elements of the non-rotating system of a separator is possible in a simple manner.
  • the drum is placed or is placed on this unit, that at least one peeling disk is arranged in a peeling chamber in the drum and that with the intermediate elements also the axial relative position between the Drum and the at least one peeling disk is adjustable and adjustable to a nominal size. If there are several peeling disks, they are rigidly connected to one another so that their axial position in relation to the peeling chambers is also set together.
  • the preassembled drive and rotation system unit advantageously has at least the following: a drive spindle which is rotatably mounted with a bearing arrangement that has a neck bearing and a foot bearing, the neck bearing in a bearing housing is mounted and wherein the bearing housing is placed directly or via at least one intermediate element such as an intermediate ring on a one-part or multi-part motor housing and the bearing housing, possibly the intermediate ring and the motor housing each have an annular flange section on their outer circumference, which together form the annular flange section of the pre-assembled Form drive and rotating system unit.
  • the preassembled drive and rotation system unit also has a drive motor and a lubrication system.
  • screw bolts penetrate the axial bores of the annular flanges and, if necessary, of the intermediate elements which are screwed into or onto axial bores of the inner annular flange of the drive frame.
  • the axially stackable intermediate elements are designed as rings or annular disks.
  • the axially stackable annular disks can have the same or a different axial extent.
  • two or three ring disks of the same axial extent can be stacked on top of one another.
  • annular disc of the overall desired axial extent is present in a set of elements provided, for example annular discs, this axially thicker annular disc can also replace the two or three axially thinner annular discs.
  • the axially stackable annular disks are designed as rings which have circumferentially distributed holes, in particular elongated holes, through which the screw bolts pass.
  • the rings can be designed to be circumferentially closed or not circumferentially closed. It can then advantageously be provided that the axially stackable ring disks are designed as rings which are arranged circumferentially on the flange sections and have circumferentially distributed holes, in particular elongated holes, through which the screw bolts pass.
  • ring segments can also be provided as ring disks, e.g. three ring segments, which then each have one or two bores and are each penetrated by one or two screw bolts, so that in their interaction they act almost like a circumferential ring.
  • An outer contour of the ring segments that matches the inner radius of the drive frame preferably prevents undesired relative movement of these ring segments.
  • the axially stackable intermediate elements cannot be designed circumferentially and several stacks of the intermediate elements can be distributed circumferentially between the ring flanges of the drive frame and the preassembled drive and rotating system unit.
  • the cooling system (preferably exclusively) provided is an air cooling system that includes cooling fins on the outer circumference of the drive frame.
  • the preassembled drive and rotary system unit is a closed one Having lubrication system circuit. This suits the design as a preassembled unit, but is not mandatory.
  • the peeling disk has an axially lower disk or ring section with a conveyor element and an axially adjoining peeling disk shaft with a Derivation in the peeling disk shaft, and that the peeling disk shaft is fixed to a hood construction that is rigidly connected to the drive frame. It can further advantageously be provided that the disk section is arranged in the peeling chamber of a drum head of the drum.
  • Fig. 1 shows a separator 1, which has a system that does not rotate or is stationary during operation and a system that rotates or rotates relative to the stationary system during operation.
  • the rotating system and the stationary system each have a plurality of elements.
  • the rotating system of the separator has a drum 2 with a vertical axis of rotation D as the first essential element.
  • This drum 2 is only schematic here shown. It can be designed in various ways. It is preferably designed for continuous operation for the continuous clarification and / or separation of a flowable product into one or two liquid phases and possibly a solid phase - in particular in an industrial process. For this purpose, its interior is preferably provided with a stack of separating plates (not visible or shown here).
  • the drum 2, which is preferably single or double conical, is placed on the upper end of a rotatable drive spindle 3, which is vertical here. This drive spindle 3 is rotatably supported by a bearing arrangement, which here has a neck bearing 4 and a foot bearing 5.
  • the neck bearing 4 is supported in a bearing housing 6, preferably with radial elastic support.
  • an elastic element 36 such as an elastic ring can be arranged between the inner circumference of the bearing housing 6 and the outer circumference of the neck bearing 4. This bearing housing 6 does not rotate and is therefore part of the system that is idle during operation.
  • the bearing housing 6 is placed directly or via at least one intermediate element such as an intermediate ring 7 on a one-part or multi-part motor housing 8.
  • the bearing housing 6, possibly the intermediate ring 7 and the motor housing 8 each have an annular flange section 6a, 7a and 8a on their outer circumference.
  • These annular flange sections 6a, 7a, 8a are each stacked axially one above the other. They can be joined or joined together to form a modular unit with axial screws 9. Together they form an annular flange section 100a of a drive and rotation system unit 100 which can be preassembled and is also preassembled here.
  • a drive motor 10 and the foot bearing 5 are preferably also formed or arranged.
  • the rotating system with the bearing housing 6, possibly the intermediate ring 7 and the one-part or multi-part motor housing 8, forms the preassembled and preassembled drive and rotary system unit 100 in the manner of an exchangeable cassette that can be assembled as a whole.
  • This preassembled drive and rotation system unit 100 is also referred to below as preassembled unit 100 for short.
  • This preassembled unit 100 can also have the drum 2.
  • the motor housing 8 is inserted into a drive frame 11.
  • This drive frame 11 is designed in the manner of an outer housing surrounding the motor housing 8. It takes on the function of a machine frame. For this purpose, it can be attached to a substrate such as a hall floor or the like, for example.
  • Cooling ribs 12 can be formed on the outer circumference of the drive frame 11 in order to be able to radiate waste heat from the drive system into the surrounding space in a simple manner.
  • the drive frame 11 has an annular flange 11a on its inner circumference.
  • the preassembled drive and rotation system unit 100 is fastened to this annular flange 11a, so that it is directly or indirectly connected to the annular flange section 100a of this unit 100, here the annular flange 8a of the motor housing 8, as will be explained.
  • the outer ring flange section 100a of the preassembled drive and rotating system unit 100 can rest on the inner ring flange 11a of the drive frame 11, as shown, or, in an alternative embodiment, hang below it.
  • the preassembled unit 100 and its annular flange section 100a are preferably fastened to the annular flange 11a of the drive frame 11 with at least one or more fastening means, in particular one or more screw bolts 13, in particular screwed.
  • the outer ring flange section 100a of the preassembled unit formed here by the ring flange sections 6a, 7a and 8a of the bearing housing 6, possibly the intermediate ring 7 and the motor housing 8 (each in alignment), has axial bores 14, which are provided with further axial bores 15 or blind holes - if necessary provided with threads - are aligned in the annular flange 11a of the drive frame 11.
  • the relative distance between the drum 2 and the drive frame 11 with the hood can be changed in the axial direction by simple means by choosing the number of intermediate elements 16 so that the desired dimension is set.
  • the annular disks 16a, b, ... can have the same or a different axial extent.
  • the peeling disk 17 here has an axially lower disk or ring section 18 with a conveying element and an axially adjoining peeling disk shaft 19 , through which a product phase to be diverted can be conducted axially out of the drum 2 into a downstream diverter (not shown in detail here).
  • the peeling disk shaft 19 coaxially surrounds a feed pipe 20. This protrudes freely into the drum. Alternatively, the entry area of the inlet pipe 20 into the drum 2 can also be hermetically sealed.
  • the disk section 18 is formed in a peeling chamber 21 of a drum head 22 of the drum 2 at the upper axial end above the drum 2. The drum head 22 of the drum 2 rotates with this during operation. It belongs to the rotating system.
  • the peeling disk 17 with the disk section 18 and its peeling disk shaft 19 do not rotate during operation.
  • the inlet pipe 20 also does not rotate with the drum 2. There is therefore a relative rotation between the drum head 22, which delimits the peeling chamber 21 towards the outside, and the peeling disk 17 inserted into it. It must therefore be ensured that the peeling disk 17 is arranged axially approximately in the center of the peeling chamber 21, so that it cannot touch its inner wall during rotations of the drum 2.
  • this axial alignment can be achieved by arranging one or more intermediate elements 16 between the inner annular flange 11a of the drive frame 11 and the annular flange section 8a of the preassembled drive unit, in particular of the motor housing 8.
  • a hood construction 23 is placed on the drive frame. This is attached to the drive frame 11.
  • the hood construction 23 surrounds the drum 2.
  • the peeling disk 17 - here the peeling disk shaft 19 is attached to the hood construction 23 and preferably also penetrates it.
  • the skiving disk 17 is axially rigidly connected to the drive frame 11 overall.
  • an air cooling system is used here, implemented by the cooling fins 12. This is advantageous and simple. However, liquid cooling can also be used in addition or as an alternative.
  • the supply of the bearings 4, 5 with lubricant can also take place in various ways.
  • the drive spindle 3 is axially penetrated by a bore 29, the drive spindle 3 dipping into an oil sump 30 at the bottom in the drive frame 11.
  • oil is conveyed like a suction pipe to below the neck bearing 4.
  • There it is conveyed radially through one or more transverse bores 31 and on the inside through an annular channel 32 in a ring or sleeve 24 to the neck bearing 4, the neck bearing 4 being lubricated, and then runs axially downward in a vertical channel 37.
  • the ring 24 is supported vertically on a step of the drive spindle 3.
  • the neck bearing 4 is preferably designed as a roller bearing and is designed here as a floating bearing.
  • a sight glass 38 can be provided to allow a visual check of the oil level.
  • a drain plug 39 enables the oil to be changed.
  • the foot bearing 5 is designed as an axial fixed bearing and is arranged on the drive spindle 3. It is also used in a bearing housing pot 25 via its outer ring.
  • the bearing housing pot 25 is inserted into an inner ring of a spherical bearing 26, the spherical bearing having spherical bearing surfaces.
  • the spherical bearing 26 also has an outer ring which is axially fixed in the motor housing 8
  • the drive spindle 3 can be gimbaled or tilted so that the drive spindle 5 with the drum 2 can follow the precession movements of the drum 2 during operation.
  • a roller bearing is preferably used here, which can absorb the axial forces that arise in a suitable manner.
  • a roller bearing is preferably used here, which can absorb the axial forces that arise in a suitable manner.
  • deep groove ball bearings or angular contact ball bearings are suitable for this purpose. If necessary, these bearings can also be arranged in pairs if the forces to be absorbed require this.
  • the joint bearing 26 described here assumes the gimbal inclinability and support.
  • the entire unit consisting of spherical bearing 26 and foot bearing 5 can be replaced by a self-aligning ball bearing or self-aligning roller bearing when the forces to be absorbed are low, in particular axial forces.
  • the inner ring of the foot bearing 5 here rests at the top against a ring 33, which in turn rests against a shoulder 34 which the drive spindle 3 has.
  • the outer ring of the foot bearing 5 is supported downwards on the base of the bearing housing pot 25.
  • the outer ring of the spherical bearing 26 is supported at the bottom by a ring 35 which is fastened on the inside of the motor housing 8.
  • This arrangement is compact and enables the weight of the drum 2 to be supported on the drive frame 8 via the foot bearing 5 in a simple and reliable manner.
  • the drive motor 10 is arranged as the drive device in the axial area between the bearings.
  • the drive motor preferably works according to an electrical operating principle and has a rotor 27 and a stator 28.
  • This drive motor 10 lies completely between the neck bearing 4 and the foot bearing 5.
  • the electric drive motor 10 can be an asynchronous motor or a synchronous motor - for example a reluctance motor.
  • the rotor 27 is formed directly on the outer circumference of the drive spindle.
  • the stator 28 is attached to the inside of the motor housing 8. Since the drive runs with little wear except for the neck and foot bearings 4, 5, a large part of the usual maintenance effort is omitted, which lowers the operating costs.

Landscapes

  • Centrifugal Separators (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Paper (AREA)
EP18735267.9A 2017-06-30 2018-06-28 Separator mit direktantrieb Active EP3645169B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017114649.0A DE102017114649A1 (de) 2017-06-30 2017-06-30 Separator mit Direktantrieb
PCT/EP2018/067347 WO2019002429A1 (de) 2017-06-30 2018-06-28 Separator mit direktantrieb

Publications (2)

Publication Number Publication Date
EP3645169A1 EP3645169A1 (de) 2020-05-06
EP3645169B1 true EP3645169B1 (de) 2021-08-04

Family

ID=62784153

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18735267.9A Active EP3645169B1 (de) 2017-06-30 2018-06-28 Separator mit direktantrieb

Country Status (7)

Country Link
US (1) US11660616B2 (da)
EP (1) EP3645169B1 (da)
JP (1) JP7102449B2 (da)
DE (1) DE102017114649A1 (da)
DK (1) DK3645169T3 (da)
ES (1) ES2894127T3 (da)
WO (1) WO2019002429A1 (da)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101510286B1 (ko) * 2013-11-08 2015-04-08 주식회사 포스코 슬래그 제거장치
DE102020111217A1 (de) 2020-04-24 2021-10-28 Gea Mechanical Equipment Gmbh Separator mit Direktantrieb

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB368247A (en) 1929-08-31 1932-03-03 Gen Electric Improvements in and relating to methods of mounting high speed shafts
US2124866A (en) * 1935-07-23 1938-07-26 Laminated Shim Co Inc Laminated shim
GB675648A (en) 1950-01-19 1952-07-16 Separator Ab Improved centrifugal separator for the continuous separation and discharge of solid matter from a liquid mixture
BE554838A (da) 1956-02-26
FR1287551A (fr) 1961-02-02 1962-03-16 Garin Ets Appareil tel qu'écrémeuse
JPS5843159U (ja) * 1981-09-16 1983-03-23 ブラザー工業株式会社 ギヤツプ調整可能な電磁ブレ−キ付モ−タ
DE4314440C1 (de) 1993-05-03 1994-06-16 Kyffhaeuser Maschf Artern Gmbh Zentrifugalseparator mit Schwerstanlauf
SE509516C2 (sv) 1997-06-16 1999-02-08 Alfa Laval Ab Anordning för att tillföra en vätska vid ett lager till en roterande axel
SE526010C2 (sv) 2003-04-08 2005-06-14 Alfa Laval Corp Ab En drivanordning för en centrifugalseparator
DE102006011895A1 (de) 2006-03-15 2007-09-20 Westfalia Separator Ag Separatoranordnung in sanitärer Ausführung
DE102006020467A1 (de) 2006-04-28 2007-10-31 Westfalia Separator Ag Separator mit Direktantrieb
SE532905C2 (sv) 2008-09-22 2010-05-04 Alfa Laval Corp Ab Centrifugalseparator
DE102013100180A1 (de) * 2012-03-26 2013-09-26 Gea Mechanical Equipment Gmbh Separatoranordnung
DE102012110846A1 (de) 2012-11-12 2014-05-15 Gea Mechanical Equipment Gmbh Separator mit Direktantrieb
DE202014003326U1 (de) * 2014-04-17 2015-08-07 Georg Martin Gmbh Treppenförmige Zwischenlage (Toleranzausgleich-Schichtfolie)

Also Published As

Publication number Publication date
WO2019002429A1 (de) 2019-01-03
EP3645169A1 (de) 2020-05-06
DE102017114649A1 (de) 2019-01-03
US20200156085A1 (en) 2020-05-21
DK3645169T3 (da) 2021-10-04
ES2894127T3 (es) 2022-02-11
JP2020525272A (ja) 2020-08-27
US11660616B2 (en) 2023-05-30
JP7102449B2 (ja) 2022-07-19

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