EP3645169A1 - Separator having direct drive - Google Patents
Separator having direct driveInfo
- Publication number
- EP3645169A1 EP3645169A1 EP18735267.9A EP18735267A EP3645169A1 EP 3645169 A1 EP3645169 A1 EP 3645169A1 EP 18735267 A EP18735267 A EP 18735267A EP 3645169 A1 EP3645169 A1 EP 3645169A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drive
- annular flange
- system unit
- drum
- separator according
- 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
Links
- 238000010276 construction Methods 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 13
- 238000005461 lubrication Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 238000000926 separation method Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 238000005352 clarification Methods 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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
- 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
-
- 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
Definitions
- the invention relates to a separator with the features of the preamble of claim 1 and a method for its assembly.
- Such separators which are also suitable for industrial use and which can preferably be used in continuous operation, are known per se from the prior art.
- the power is transmitted from the electric motor to the rotor via a drive belt or by a helical gear.
- the drum, the drive spindle and the electric drive motor are rigidly connected to a structural unit, which is then supported as a whole elastically on a machine frame. Examples of such a prior art disclose the generic GB 368 247, FR 1 287 551, DE 1 057 979 and DE 43 14 440 C1.
- the discharge of the one or more liquid phases takes place 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 paring discs do not rotate with the drum during operation. But they are arranged in peeling chambers of the rotating system in operation. For this reason, the one or more paring discs in the drove rotating peeling chambers are arranged such that always such a distance between the rotating parts in operation and the non-rotating parts in operation, that the rotating in operation and not rotating in operation elements do not touch each other.
- the invention has for its object to solve the problem of easily making an adjustment of the relative axial distance between elements of the operating system rotating and elements of the non-rotating system of a separator.
- the invention solves this problem by the subject matter of claim 1. It also achieves this object by the method of claim 20.
- a separator comprising: a pre-assembled drive and rotation system unit having an outer annular flange portion, a drive frame having an inner annular flange, the outer annular flange portion of the preassembled drive and rotary system unit vertically connected to the inner annular flange of the drive frame wherein the rotatable drum is mounted on the preassembled drive and rotating system unit and wherein in the drum at least one paring disc is disposed in a peeling chamber which is axially rigidly connected to the drive frame, and wherein one or both of the inner and outer annular flange portions a plurality of stacks of one or more stackable intermediate elements for adjusting an axial relative position at least between the drive frame on the one hand and the drive and rotary system unit on the other hand is / are distributed, and wherein or whereby with the Z Wiping elements and 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, wherein the paring disc is attached to the hood construction, so that the paring disc is axially rigidly connected to the drive frame.
- the drive frame is formed with the inner annular flange in the manner of an outer housing and assumes the function of a machine frame.
- the outer annular flange portion of the preassembled drive and rotary system unit rests on the inner annular flange of the drive frame.
- the outer annular flange portion of the preassembled drive and rotary system unit can be arranged below the inner annular flange of the drive frame.
- the intermediate elements are each arranged between the inner annular flange and the outer annular flange section.
- the vertical distance between the drive frame and preferably also of a axially rigidly connected peeling disk and the drive and rotary system unit and a drum arranged on this is adjustable or adjusted by the stackable intermediate elements in a surprisingly simple manner.
- adjustment of the relative axial distance between elements of the operating-rotating system and elements of the non-rotating system of a separator is easily possible.
- a method for assembling a separator according to one or more of the claims related thereto is accordingly realized, which comprises at least the following steps: A) providing a preassembled drive and rotation system unit with an outer annular flange portion and providing a drive frame with an inner annular flange,
- the preassembled drive and rotary system unit advantageously has at least the following: a drive spindle, which is rotatably mounted with a bearing arrangement having a neck bearing and a foot bearing, wherein the neck bearing in a bearing housing is mounted and wherein the bearing housing is mounted directly or via at least one intermediate element such as an intermediate ring on a one- or multi-part motor housing and wherein the bearing housing, possibly the intermediate ring and the motor housing each have on their outer circumference a Ringflanschabites, which together the annular flange portion of the preassembled Form drive and rotary system unit.
- a drive spindle which is rotatably mounted with a bearing arrangement having a neck bearing and a foot bearing, wherein the neck bearing in a bearing housing is mounted and wherein the bearing housing is mounted directly or via at least one intermediate element such as an intermediate ring on a one- or multi-part motor housing and wherein the bearing housing, possibly the intermediate ring and the motor housing each have on their outer circumference a Ringflanscha
- the preassembled drive and rotary system unit further comprises a drive motor and a lubrication system.
- a drive motor and a lubrication system.
- the axially stackable intermediate elements are designed as rings or annular discs.
- the axially stackable annular discs may have the same or a different axial extent.
- To set the Distance can be stacked, for example, two or three discs of the same axial extent one above the other. But if an annular disc of the total desired axial extent in a provided set of elements, such as washers present, this axially thicker ring disc can replace the two or three axially thinner ring discs.
- the axially stackable annular discs are formed as rings which have circumferentially distributed holes, in particular slots, which are penetrated by the bolts.
- the rings may be formed circumferentially closed or not circumferentially closed. It may then be advantageously provided that the axially stackable annular discs are formed as circumferentially arranged on the flange portions rings having circumferentially distributed holes, in particular elongated holes, which are penetrated by the bolts.
- ring segments may be provided as annular discs, such. three ring segments, which are then e.g. each have one or two holes and are interspersed by one or two bolts, so that they act in their interaction in any case almost like a circumferential bullet ring.
- a matching with the inner radius of the Antriebsge- stellere outer contour of the ring segments preferably prevents undesirable relative movement of these ring segments.
- the axially stackable intermediate elements can not be formed circumferentially and it can be distributed circumferentially distributed several stacks of the intermediate elements between the annular flanges of the drive frame and the preassembled Antriebsund rotary system unit.
- an air cooling system is provided as the cooling system (preferably exclusively), which encloses cooling fins on the outer circumference of the drive frame.
- the construction according to the invention can then be supplemented by the fact that the preassembled drive and rotary system unit has a closed circuit. has a lubrication system circuit. This is contrary to the design as a preassembled unit, but is not mandatory.
- the paring disc has an axially lower disc or ring portion with a conveying member and an axially adjoining paring disc shaft with a discharge in the peeling disk shaft, and that the peeling disk shaft is fixed to a hood construction which is rigidly connected to the drive frame. It can be further advantageously provided that the disc portion is arranged in the peeling chamber of a drum head of the drum.
- FIG. 1 shows a sectional view of a schematically illustrated separator according to the invention.
- FIG. 1 shows a separator 1, which has a system which does not rotate or stand still during operation, and a system which 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.
- This drum 2 is shown here only schematically. It can be configured in various ways. Preferably, it is for a continuous operation for the continuous clarification and / or separation of a flowable product into one or two liquid phases and optionally a solid phase - in particular in the industrial process - designed. For this purpose, their interior is preferably provided with a separation plate stack of separation plates (not visible or shown here).
- the - preferably single or double conical drum 2 - is on the here vertical upper end of a rotatable
- This drive spindle 3 is rotatably mounted with a bearing arrangement, which here has a neck bearing 4 and a foot bearing 5.
- the neck bearing 4 in a bearing housing 6 - preferably radially elastically supported - stored.
- an elastic element 36 may be arranged as an elastic ring.
- This bearing housing 6 does not rotate and is therefore part of the stationary system in operation.
- the bearing housing 6 is attached directly or via at least one intermediate element such as an intermediate ring 7 on a single or multi-part motor housing 8.
- the bearing housing 6, possibly the intermediate ring 7 and the motor housing 8 each have on their outer circumference an annular flange portion 6a, 7a and 8a.
- These annular flange sections 6a, 7a, 8a are each stacked axially one above the other. They are connected together with axial screws 9 to form a modular unit or assembled. Together they form an annular flange section 100a of a preassembled and here also preassembled drive and rotary system unit 100.
- a drive motor 10 and the foot bearing 5 are preferably also formed or arranged.
- This preassembled drive and rotary system unit 100 is also referred to below as a preassembled unit 100 in the following.
- This preassembled unit 100 may also have the drum 2.
- the motor housing 8 is inserted into a drive frame 1 1.
- This drive frame 11 is designed in the manner of an outer housing surrounding the motor housing 8. det. It assumes the function of a machine frame. For example, it can be fastened to a substrate such as a hall floor or the like.
- cooling fins 12 may be formed so as to be able to radiate waste heat of the drive system in the ambient space in a simple manner.
- the drive frame 1 1 has on its inner circumference an annular flange 1 1 a.
- the preassembled drive and rotary system unit 100 is attached, so that is indirectly connected to the annular flange 100a of this unit 100, here the annular flange 8a of the motor housing 8, directly or in a manner yet to be explained.
- the outer annular flange portion 100a of the preassembled drive and rotary system unit 100 can rest, as shown, on the inner annular flange 11a of the drive frame 11, or hang below it in an alternative embodiment.
- the preassembled unit 100 and its annular flange portion 100a are preferably secured to the annular flange 11a of the drive frame 11 with at least one or more fastening means, in particular one or more threaded bolts 13, in particular screwed tight.
- annular flange 8a and the annular flange 1 1 a of the drive frame 1 1 one or more stackable intermediate elements 1 6, in particular annular discs 1 6a, b, if appropriate, in each case in the manner of a disc stack to arrange.
- the relative distance between the drum 2 and the drive frame 1 1 with the hood in the axial direction by the number of intermediate elements 1 6 is selected so that the desired level is set.
- the annular discs 1 6a, b, ... may have the same or a different axial extent.
- the peeling disk 17 has an axially lower disk or ring section 18 with a conveying member and a peeling disk shaft 19 adjoining it axially.
- the conveying member may be designed as an opening formed on the outer circumference of the disk section 18, which opens into a discharge in the peeling disk shaft 19 through which a product phase to be derived can be conducted axially out of the drum 2 into a downstream discharge (not shown in detail here).
- the peeling disk shaft 19 coaxially surrounds a feed pipe 20. This protrudes freely into the drum. Alternatively, the inlet region of the feed pipe 20 into the drum mel 2 also be hermetically sealed.
- the disc portion 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 during operation with this. He belongs to the rotating system.
- the inlet pipe 20 also does not rotate with the drum 2. It therefore finds a relative rotation between the drum head 22, which limits the peeling chamber 21 to the outside, and the peeling disk 17 inserted into it. Therefore, it is to be ensured that the peeling disk 17 is arranged axially approximately centrally in the peeling chamber 21, so that it can not touch its inner wall during rotations of the drum 2.
- This axial alignment can according to the invention by arranging one or more intermediate elements 1 6 between the inner annular flange 1 1 a of the drive frame 1 1 and the annular flange 8a of the preassembled drive unit in particular of the motor housing 8, take place.
- hood construction 23 On the drive frame a hood construction 23 is placed. This is attached to the drive frame 1 1.
- the hood construction 23 surrounds the drum 2.
- the peeling disk 17 - in this case the peeling disk shaft 19 is fastened to the hood construction 23 and preferably passes through it.
- the paring disc 17 is connected axially rigidly with the drive frame 1 1.
- an air cooling system is used here, realized by the cooling ribs 12. This is advantageous and simple. But it can also be used in addition or alternatively a liquid cooling.
- the supply of the bearings 4, 5 with lubricant can also be done in various ways.
- the drive spindle 3 is axially penetrated by a bore 29, wherein the drive spindle 3 is immersed in the bottom of the drive frame 1 1 in an oil sump 30. Through the bore 29 of the drive spindle 3, suction tube-like oil is conveyed below the neck bearing 4.
- the neck bearing 4 is preferably designed as a roller bearing and is designed here as a floating bearing.
- a sight glass 38 may be provided to allow visual inspection of the oil level.
- a drain plug 39 allows a change of the oil.
- the foot bearing 5 is formed as an axial bearing and arranged on the drive spindle 3. It is also inserted through its outer ring in a bearing housing pot 25.
- the bearing housing pot 25 is inserted into an inner ring of a spherical bearing 26, wherein the spherical bearing has spherical bearing surfaces.
- the joint bearing 26 also has an outer ring which is axially fixed in the motor housing 8.
- a rolling bearing is preferably used here, which can absorb the resulting axial forces in a suitable manner.
- the joint bearing 26 described here takes over the gimbal inclinability and support.
- the entire unit consisting of spherical plain bearing 26 and 5 foot bearings can at low forces to be absorbed, in particular axial forces by a
- the foot bearing 5 is here upwards with its inner ring on a ring 33, which in turn bears against a shoulder 34 which has the drive spindle 3.
- the outer ring of the foot bearing 5 is supported at the bottom of the bearing housing pot 25 down. Downwardly, the outer ring of the hinge bearing 26 is supported by a ring 35 which is fixed to the inside of the motor housing 8.
- This arrangement is compact and allows in a simple and reliable way, the support of the weight of the drum 2 via the bottom bracket 5 on the drive frame. 8
- the Drive motor 10 is arranged.
- the drive motor preferably operates 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 may 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 fixed to the inside of the motor housing 8. Since the drive runs except for the neck and foot bearings 4, 5 wear, a large part of the usual maintenance costs, which reduces the operating costs.
Landscapes
- Centrifugal Separators (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Paper (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017114649.0A DE102017114649A1 (en) | 2017-06-30 | 2017-06-30 | Separator with direct drive |
PCT/EP2018/067347 WO2019002429A1 (en) | 2017-06-30 | 2018-06-28 | Separator having direct drive |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3645169A1 true EP3645169A1 (en) | 2020-05-06 |
EP3645169B1 EP3645169B1 (en) | 2021-08-04 |
Family
ID=62784153
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18735267.9A Active EP3645169B1 (en) | 2017-06-30 | 2018-06-28 | Separator having direct drive |
Country Status (7)
Country | Link |
---|---|
US (1) | US11660616B2 (en) |
EP (1) | EP3645169B1 (en) |
JP (1) | JP7102449B2 (en) |
DE (1) | DE102017114649A1 (en) |
DK (1) | DK3645169T3 (en) |
ES (1) | ES2894127T3 (en) |
WO (1) | WO2019002429A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101510286B1 (en) * | 2013-11-08 | 2015-04-08 | 주식회사 포스코 | Apparatus for removing slag |
DE102020111217A1 (en) | 2020-04-24 | 2021-10-28 | Gea Mechanical Equipment Gmbh | Direct drive separator |
Family Cites Families (15)
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 |
DE941267C (en) * | 1950-01-19 | 1956-04-05 | Separator Ab | Centrifugal machine for the continuous separation and discharge of solid components from a liquid mixture |
BE554838A (en) | 1956-02-26 | |||
FR1287551A (en) | 1961-02-02 | 1962-03-16 | Garin Ets | Device such as cream separator |
JPS5843159U (en) * | 1981-09-16 | 1983-03-23 | ブラザー工業株式会社 | Motor with electromagnetic brake with adjustable gap |
DE4314440C1 (en) | 1993-05-03 | 1994-06-16 | Kyffhaeuser Maschf Artern Gmbh | High torque centrifuge - has rotating components inelastically suspended with rotating system, bearing bridge, motor stator, joined as single constructional and vibrational unit |
SE509516C2 (en) | 1997-06-16 | 1999-02-08 | Alfa Laval Ab | Apparatus for supplying a liquid at a bearing to a rotating shaft |
SE526010C2 (en) | 2003-04-08 | 2005-06-14 | Alfa Laval Corp Ab | A centrifugal separator drive device |
DE102006011895A1 (en) | 2006-03-15 | 2007-09-20 | Westfalia Separator Ag | Separator arrangement in sanitary design |
DE102006020467A1 (en) | 2006-04-28 | 2007-10-31 | Westfalia Separator Ag | Separator for use in industrial application, has stator rigidly connected with machine frame, and rotor, drive spindle, centrifuge barrel and housing forming flexible unit supported at machine frame |
SE532905C2 (en) | 2008-09-22 | 2010-05-04 | Alfa Laval Corp Ab | centrifugal |
DE102013100180A1 (en) * | 2012-03-26 | 2013-09-26 | Gea Mechanical Equipment Gmbh | separator arrangement |
DE102012110846A1 (en) | 2012-11-12 | 2014-05-15 | Gea Mechanical Equipment Gmbh | Separator with direct drive |
DE202014003326U1 (en) * | 2014-04-17 | 2015-08-07 | Georg Martin Gmbh | Stair-shaped intermediate layer (tolerance compensation layer film) |
-
2017
- 2017-06-30 DE DE102017114649.0A patent/DE102017114649A1/en not_active Withdrawn
-
2018
- 2018-06-28 DK DK18735267.9T patent/DK3645169T3/en active
- 2018-06-28 US US16/625,108 patent/US11660616B2/en active Active
- 2018-06-28 JP JP2019572477A patent/JP7102449B2/en active Active
- 2018-06-28 WO PCT/EP2018/067347 patent/WO2019002429A1/en active Application Filing
- 2018-06-28 ES ES18735267T patent/ES2894127T3/en active Active
- 2018-06-28 EP EP18735267.9A patent/EP3645169B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
DE102017114649A1 (en) | 2019-01-03 |
DK3645169T3 (en) | 2021-10-04 |
JP2020525272A (en) | 2020-08-27 |
EP3645169B1 (en) | 2021-08-04 |
ES2894127T3 (en) | 2022-02-11 |
JP7102449B2 (en) | 2022-07-19 |
US11660616B2 (en) | 2023-05-30 |
US20200156085A1 (en) | 2020-05-21 |
WO2019002429A1 (en) | 2019-01-03 |
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