EP4196285B1 - Separatoreinsatz und separator - Google Patents

Separatoreinsatz und separator Download PDF

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Publication number
EP4196285B1
EP4196285B1 EP21758091.9A EP21758091A EP4196285B1 EP 4196285 B1 EP4196285 B1 EP 4196285B1 EP 21758091 A EP21758091 A EP 21758091A EP 4196285 B1 EP4196285 B1 EP 4196285B1
Authority
EP
European Patent Office
Prior art keywords
separator
drum
housing
separator insert
rotor
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
EP21758091.9A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP4196285A1 (de
Inventor
Rüdiger GÖHMANN
Kai HELMRICH
Kathrin Quiter
Andreas Schulz
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 Westfalia Separator Group GmbH
Original Assignee
GEA Westfalia Separator Group 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
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Publication of EP4196285A1 publication Critical patent/EP4196285A1/de
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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
    • B04B1/04—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
    • 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
    • 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
    • B04B7/00—Elements of centrifuges
    • B04B7/02—Casings; Lids
    • B04B7/04—Casings facilitating discharge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B7/00—Elements of centrifuges
    • B04B7/08—Rotary bowls
    • 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

Definitions

  • the invention relates to a separator insert for a separator and a separator with such a separator insert.
  • Separators in the sense of this document serve to separate a flowable suspension as the starting product in the centrifugal field into phases of different densities. Steam sterilization of the separators used is necessary for a wide variety of applications.
  • a relatively “small" steam-sterilizable separator with a plate pack introduced to the market by the applicant, is the “CSC 6" separator with an equivalent clarification area of 6000 m 2. In some situations, such as in the laboratory, however, this machine is still relatively large.
  • the known separators with a plate pack that are available on the market are driven by a spindle, which in turn is driven by a motor directly or via a gear. In addition, the known machines are made of stainless steel.
  • a separator for separating a flowable product into different phases which has a rotatable drum with a drum lower part and a drum upper part and a means arranged in the drum for processing a suspension in the centrifugal field of solids or for separating a heavy solid-like phase from a lighter phase in the centrifugal field, wherein one, several or all of the following elements are made of plastic or a plastic composite material: the drum lower part, the drum upper part, the means for clarifying.
  • the bearing devices are designed as magnetic bearings and one of the magnetic bearing devices is preferably also used as a drive device for rotating the drum, which is kept suspended during operation. This eliminates the need for mechanical components for rotating and supporting the drum, which favors the design as a separator with a separator insert for single use, since replacing this separator insert is very easy to handle.
  • the present invention also makes use of these advantages.
  • This design makes it possible to control the separation process particularly well.
  • the rotor units are arranged at the two axial ends of the drum and that two corresponding stator units are formed on the frame of the separator. In this way, magnetic bearing devices are formed at both axial ends of the drum.
  • the openings of the drum are functionally assigned to the openings of the housing from a).
  • At least one of the two magnetic bearing devices preferably also represents the rotary drive for the drum, whereby this drive is also suitable for driving the drum at freely adjustable speeds or freely selectable directions of rotation. It can preferably be provided that one or both magnetic bearing devices act as radial and axial bearings and keep the rotor suspended in the container at a distance from it during operation.
  • the separator insert forms a pre-assembled, exchangeable unit for insertion into stator units on the frame of the separator.
  • the rotor and stator units form magnetic bearing devices. With these, the drum can be axially and radially supported and kept suspended.
  • a further opening in the drum is designed as a free radial outlet for a second of the flowable phases from the drum into the housing, from which it can be discharged. It can also be advantageous and simple for this purpose to be assigned to a collecting annular chamber in the housing, which has an outlet from the housing.
  • the second peeling disc has a discharge pipe which is designed coaxially to the supply pipe and is led coaxially to it out of the drum and through the opening in the first axial boundary wall of the housing.
  • a control valve is connected downstream of the first paring disc and/or the second paring disc on the flow side - possibly on the outlet side in each case - which can be controlled by a control device.
  • a separating means in particular a plate pack, is arranged in the drum and that the first peeling disc is arranged in a space-saving and simple manner in the drum below the distributor and below the plate pack, i.e. in an area that is otherwise often required for fastening a drive spindle, which is not required here.
  • the rotor units for the magnetic bearing devices are arranged at the two axial ends of the drum and that the inlet pipe and the outlet pipe of the first peeling disc each pass axially through one of these two rotor units.
  • the separator insert is designed as a pre-assembled unit.
  • all elements of this insert that come into contact with the product are made of plastic or another non-magnetic material, whereby it can be replaced as a whole and can be completely disposed of after use. Cleaning and, if necessary, steam sterilization of the separator insert are therefore no longer necessary.
  • the respective bearing device which in addition to a radial bearing also provides an axial bearing of the drum and/or a rotary drive, can act permanently and/or electromagnetically.
  • the inlet pipe or a paring disc shaft surrounding it is preferably inserted into the housing in a sealed manner or is formed integrally with it.
  • the drum can be single-conical or double-conical. In addition or as an alternative, it can also have one or more cylindrical sections. It can also be composed of several parts, in particular an upper part and a lower part, whereby these parts are preferably connected to one another after the installation of internal components and their assembly (e.g. by gluing or welding). Similarly, the housing can be composed of several parts, in particular an upper part and a lower part, whereby these parts are preferably connected to one another after the installation of internal components - in particular the rotor - and their assembly (e.g. by gluing or welding).
  • the drains can have nozzles on the outside of the housing, which are sealed on the outer circumference so that hoses or similar can be easily connected.
  • the hoses can also be pre-assembled on the nozzles so that they are completely sealed and, if necessary, sterile.
  • the nozzles can extend radially, tangentially or at an angle to the radial direction, for example.
  • separators are suitable for operation at variable, even relatively high speeds.
  • they can also be used for one-off processing - for example for centrifugal separation of a product batch of a flowable fermentation broth as a suspension - from e.g. 100 l to several thousand, e.g. 4000 l - into different phases - and then disposed of.
  • a particular advantage is that all product-contacting components of the separator are installed, operated and then can be disposed of.
  • This prefabricated unit consists of at least the rotor with the drum, the separating plates, the inlet distributor and the rotor magnets or rotor units, as well as the housing with the inlets and outlets.
  • the unit can also contain inlet and outlet lines (e.g. hoses) as well as measuring equipment or other components that come into contact with the product, which are intended for single use and are disposed of together with the separator unit after use.
  • a further advantage is that in addition to a lower axial bearing in the first vertical alignment of the axis of rotation, another axial bearing is provided - e.g. at an opposite end of the drum or possibly also in the drum.
  • the axis of rotation of the drum can be arranged vertically but alternatively also advantageously inclined from the vertical. Any arrangement of the axis of rotation is possible.
  • the axis of rotation can therefore be inclined from the vertical at an angle of 30 - 60°, for example 45°, or it can also be aligned horizontally - i.e. inclined by 90° to the vertical. It is also possible to rotate the entire arrangement by 180° so that the inlet opening is arranged at the bottom and the conical separating plates open upwards - without this causing bearing problems for the drum.
  • a first vertical alignment of the axis of rotation means that the position of the elements of the centrifuge can be or is realized in a vertical alignment of the axis of rotation as described. In practice, however, the axis of rotation can also be aligned at an angle to the vertical alignment.
  • the outlet for the phases LP, HP is preferably placed at a vertically lowest point in the respective collecting ring chambers.
  • one of the bearing and/or drive units is designed to radially support the drum at its lower end in a first vertical orientation and to set it in rotation.
  • the housing has only the openings for the inlet pipes and the outlets and is otherwise hermetically sealed.
  • the inlet pipes and the outlets protrude from the housing in the manner of nozzles. protrude outwards, whereby these nozzles are sealed to the housing or are formed integrally with it.
  • the invention also provides a separator with a frame and a replaceable separator insert according to one of the related claims.
  • the invention enables the production of a separator in which a disposable separator insert can be used, which is preferably designed in such a way that all components that come into contact with the product are made of plastic or other non-magnetic materials that can be disposed of after a single use. Cleaning after use is therefore no longer necessary. The machine and its operation can therefore be significantly cheaper. Magnets can be recycled if necessary.
  • the entire separator insert is provided as a sealed unit into which no contamination can enter.
  • the nozzles can be sealed and detachably closed.
  • Hose sections can be arranged on the nozzles that have openable and closable connectors with which the separator module or in this case the separator insert can be connected to other elements of the inlet and outlet system such as bags or tanks or hoses or pipes.
  • the frame is provided with spaced-apart receptacles for the bearing devices, between which the separator insert can be inserted in a rotationally fixed manner.
  • the relative distance between the mounts on the console is adjustable in order to be able to change the separator insert.
  • the separator insert can be secured to the frame in a form-fitting and/or force-fitting manner so that it cannot rotate.
  • the housing and the receptacles have corresponding Form-locking means to hold the housing rotationally fixed to the frame or the stator units.
  • the position of these corresponding form-fitting means also defines the functionally required position of the stator units and the rotor units in relation to one another. This particularly applies to the precise centering of the coaxially nested units.
  • the mounts can also exert a holding force (from above and below) on the housing in the axial direction in order to hold it in a force-locking manner if necessary.
  • At least one control device is provided with which the amount of recirculation of the light or heavy phase can be controlled or regulated - in particular using one or more results of measurements with the measuring device.
  • Figure 3 shows a separator with a reusable frame I and with a replaceable separator insert II according to the type of Fig. 1 for centrifugal separation of a product - a suspension S - into different dense phases HP, LP.
  • the separator insert could also be used according to the type of Fig. 2 be designed.
  • the separator insert II is preferably designed as a prefabricated unit.
  • the separator insert II is designed as a disposable separator insert that is exchangeable or replaceable as a whole and designed as a pre-assembled unit, which is made entirely or predominantly from plastic or plastic composite materials.
  • the separator insert (which does not include elements 4a and 5a) is shown separately as an example in Figure 1 and 2 It can be disposed of after processing a product batch and replaced with a new separator insert II.
  • Such a separator with an easily replaceable separator insert can be useful and advantageous when processing products where it can be ruled out with a very high degree of certainty that impurities will be introduced into the product - a flowable suspension or its phases - during centrifugal processing or where cleaning and disinfection of the separator would be very complex or even impossible.
  • the frame I has a console I-1. This can - but does not have to - be mounted on a carriage I-2 with rollers I-3. Receptacles I-4 and I-5 can be arranged on the console I-1, which are used to receive and hold the separator insert. II also serve during operation. Preferably, a first axial end of the separator insert II projects from below into the upper receptacle I-4 and a lower end of the separator insert II projects from above into the other receptacle I-5.
  • Respective stator units 4a, 5a of two drive and magnetic bearing devices 4 and 5 can be arranged in the respective receptacles I-4 and I-5.
  • the control and power electronics for this can be arranged in the frame I, e.g. in the console I-1.
  • these mounts I-4 and I-5 protrude laterally from the console I-1 of frame I. They can be arranged on the console I-1 in a height-adjustable manner.
  • Corresponding form-locking means can be formed on the receptacles I-4 and I-5 and on a housing 1 of the separator insert II that does not rotate during operation in order to be able to insert the separator insert II in a rotationally fixed manner into the stator units 4a, 5a.
  • the upper and lower stator units 4a, 5a can each have axes that are aligned with one another.
  • the two receptacles I-4 and I-5 with the stator units 4a, 5a are arranged on the frame I-1 so as to be axially movable, in particular displaceable, relative to one another - and here, for example, also vertically.
  • the receptacles I-4 and I-5 with the stator units 4a, 5a on the frame I can be moved axially apart and towards each other again in order to change the separator insert II, i.e. in order to be able to remove the old separator insert II from the frame I and replace it with a new one.
  • the relative distance between the receptacles I-4 and I-5 with the stator units 4a, 4b of the bearing devices 4, 5 is adjustable in order to be able to change the separator insert II.
  • the separator insert II can be secured to the frame I in a form-fitting and/or force-fitting manner so that it cannot rotate.
  • the housing 1 and the stator units 4a, 5a can have corresponding form-fitting means such as projections (e.g. pins) and recesses (e.g. holes) to hold the housing 1 torsionally fixed to the stator units and thus to the frame I.
  • form-fitting means 41 and 42 are arranged circumferentially distributed in the lower and upper areas of the separator insert II and on the frame.
  • corresponding form-locking means is provided instead of several form-locking means in the lower or upper area of the separator insert II and at the corresponding location on the frame I.
  • the corresponding form-locking means in Fig. 3 and Fig. 4 are pins 41a and recesses 41b.
  • the corresponding form-locking means can also be formed directly on the frame I.
  • the corresponding form-locking means can be arranged symmetrically or asymmetrically to ensure that the separator insert can only be used in a single orientation.
  • the separator insert II of the separator has a housing 1 and a rotor 2 inserted into the housing 1, which can rotate relative to the housing 1 during operation.
  • the rotor 2 has an axis of rotation D. This can be aligned vertically, which corresponds to the structure of the frame I. However, it can also be aligned differently in space if the frame is designed accordingly.
  • the rotor 2 of the separator insert II also has a rotatable drum 3.
  • the rotor 2 is rotatably mounted at two locations axially spaced from one another in the direction of the axis of rotation with respective magnetic bearing devices 4, 5.
  • it or the drum 3 is mounted in this way at the two axial ends.
  • the separator insert II has rotor units 4b, 5b of the magnetic bearing devices 4, 5.
  • stator units 4a, 5a of the magnetic bearing devices 4, 5 are arranged on the frame I-1.
  • the magnetic bearing devices 4, 5 preferably act radially and axially and preferably keep the rotor 2 suspended in the housing 1 at a distance from the latter.
  • the rotor units 4b, 5b can be designed essentially in the manner of inner rings made of magnets, in particular permanent magnets, and the reusable stator units 4a, 5a can essentially be designed as outer rings, which can be used for the axial and radial bearing of the rotor 2 (e.g. above) or alternatively for the rotary drive (e.g. below).
  • the rotor units 4b and/or 5b as part of the separator drive, also represent part of the rotating system or rotor.
  • the rotor of the drive is part of the drum of the centrifugal separator.
  • One or both of the magnetic bearing devices 4, 5 is/are therefore preferably also used as a drive device for rotating the rotor 2 with the drum 3 in the housing 1.
  • the respective magnetic bearing device forms a combined magnetic bearing and drive device.
  • the magnetic bearing devices 4, 5 can be designed as axial and/or radial bearings, which support the drum 3 at its ends during operation in a cooperative manner axially and radially and keep it floating and rotating during operation.
  • the magnetic bearing devices 4 and 5 can be designed in the same or largely the same way in terms of their basic structure. In particular, only one of the two magnetic bearing devices 4, 5 can also be used as a drive device. Corresponding components of the magnetic bearings 4, 5 are thus formed on the separator insert II - on its rotor 2 - and other corresponding parts on the frame I. One or both stator units 4a, 5a can also be electrically connected to control and power electronics for controlling the electromagnetic components of the magnetic bearing devices.
  • the respective magnetic bearing device 4, 5 can, for example, operate according to a combined electro- and permanent-magnetic operating principle.
  • At least the lower axially acting magnetic bearing device 5 serves to keep the rotor 2 suspended axially within the housing 1 by levitation. It can have one or more first permanent magnets, for example on the underside of the rotor, and furthermore have electromagnets on a holder on the frame, which coaxially surround the permanent magnet(s).
  • the rotor can be driven electromagnetically. However, a drive via rotating permanent magnets is also possible.
  • Such bearing and drive devices are used, for example, by the company Levitronix for driving centrifugal pumps ( EP2 273 124 B1 ). They can also be used in the context of this document.
  • a first Levitronix motor "bottom” can be used as a drive, which simultaneously magnetically supports the drum radially and axially.
  • a second Levitronix motor - for example, identical in construction except for the control in operation - can be provided, which can support the rotor 2 radially and axially on the head as the magnetic bearing 4.
  • the rotor speed can be controlled by means of a control device 37 (see Fig. 1 or 2 ) or a separate control device of the magnetic bearings 4, 5.
  • the direction of rotation of the rotor 2 can also be specified and changed in this way.
  • the rotor 2 rotates. It is thus held in axial suspension and centered radially.
  • the rotor 2 is preferably operated with the drum 3 at a speed of between 1,000, preferably 5,000 to 10,000, and possibly up to 20,000 revolutions per minute.
  • the centrifugal forces generated by the rotation lead to the separation of a suspension to be processed into various flowable phases LP, HP of different densities, as described above, and to their discharge, as described in more detail below.
  • the product batch is processed in continuous operation, which means that the phases separated from the suspension are completely discharged from the drum during operation.
  • the housing 1 preferably consists of a plastic or a plastic composite material.
  • the housing 1 can be cylindrical and have a cylindrical outer casing, at the ends of which two radially extending boundary walls 6, 7 (cover and base) are formed.
  • the drum 3 serves for the centrifugal separation of a flowable suspension S in the centrifugal field into at least two phases LP, HP of different densities, which can be, for example, a lighter liquid phase and a heavy solid phase or a heavy liquid phase.
  • the rotor 2 and its drum 3 have a vertical axis of rotation D.
  • the housing 1 and the rotor 2 could also be aligned differently in space. The following description refers to the vertical alignment shown ( Fig. 3 ). If the orientation in the room changes, the alignments will change according to the new orientation. In addition, one or both outlets may be arranged differently - this will be discussed later.
  • the rotor 2 of the separator with the drum preferably consists entirely or predominantly of a plastic or a plastic composite material.
  • the drum 3 is preferably cylindrical and/or conical in sections. The same applies to the other elements in the rotor 2 and on the housing 1 (except for elements of the magnetic bearing devices 4, 5).
  • the housing 1 is designed in the manner of a container, which is advantageously hermetically sealed except for a few openings/opening areas (to be discussed later).
  • Fig. 1 and 2 One of the openings is formed in each of the two axial boundary walls 6, 7, which are located at the top and bottom here, for example, of the container 1.
  • One of the openings - in the first, here upper axial boundary wall 6 - enables or serves Fig. 1 and 2 as inlet 8 for supplying a suspension to be separated in the centrifugal field into at least two phases of different density - LP and HP - through the housing 1 into the drum 3.
  • first phase is a lighter phase LP and the second phase is a denser, heavier phase HP compared to the first phase.
  • a second of the openings - in the second, here lower axial boundary wall 7 - enables or serves as an outlet for the second heavier phase HP directly from the drum 3 through the housing 1.
  • the drum 3 also has openings which are functionally assigned to the openings of the housing.
  • An inlet pipe 12 for a suspension to be processed extends into an upper opening 12a at one axial end of the drum 3.
  • This pipe passes through the housing 1, in particular its one - here upper - axial boundary wall 6.
  • the inlet pipe 12 is bent towards the housing 1 Fig. 1 inserted into it in a sealed manner - e.g. by welding or gluing - or if necessary made in one piece with the housing as a plastic injection-molded part. It is preferably also made of plastic.
  • the inlet pipe 12 protrudes with one end from the top of the housing 1 and extends through the upper boundary wall 6 into the drum 3, whereby it does not touch the drum 3.
  • the inlet pipe 12 is thus an opening in the housing 1, which is functionally assigned to the opening 12a of the drum 3.
  • the inlet pipe 12 penetrates Fig. 1 (but also Fig. 2 ) concentrically to the axis of rotation of the rotor 2, the housing 1 and the one magnetic bearing 4, then extends axially within the housing 1 into the rotatable drum 3 and ends there with its other end - a free outlet end.
  • the inlet pipe 12 opens into Fig. 1 and 2 each in the drum 3 in a distributor 13 that can rotate with the drum 3.
  • the distributor 13 has a tubular distributor shaft 14 and a distributor base 15.
  • One or more distributor channels 16 are formed in the distributor base 15.
  • a separating plate stack made up of conical separating plates 17 can be placed on the distributor 13.
  • the distributor 13 and the separating plates 17 are preferably also made of plastic.
  • a peeling disc shaft or a centric drain pipe 34 passes through the second axial boundary wall 7 (see Fig. 1 and Fig. 2 ) of the housing 1 and thus forms a further opening of the housing 1. It also projects downwards from a lower axial opening 34a of the drum, but does not touch the drum.
  • the drum 3 has at least two cylindrical sections 18, 19 of different diameters.
  • One or more conical transition areas can be formed adjacent to these on the drum 3.
  • the drum 3 can also be designed as a single or double cone in its central axial area (not shown here).
  • the drum 3 can have a lower cylindrical section 20 of smaller diameter, on/in which the rotor unit 5b of the lower magnetic bearing is also formed, which merges into a conical region 20a, then here, for example, a cylindrical region 19 of larger diameter, then again a conical region 18a and then an upper cylindrical section 18 of smaller diameter, on which the rotor unit 4b of the upper magnetic bearing 4 is formed.
  • the separator inserts of the Fig. 1 and 2 .
  • Openings (which can be provided on the drum 3 distributed around the circumference, whereby several openings can be provided on the drum 3) serve according to Fig. 1 as radial or tangential outlets 21 of the light phase LP from the drum 3.
  • An opening in the outer casing allows, according to the embodiment of the Fig. 1 then the outlet or serves as the outlet 10 of the lighter product phase LP formed during the centrifugal separation, which has been discharged from the drum 3.
  • the first outlets 21 on the radius ro of the drum 3 are designed in particular as "nozzle-like" openings in the outer shell of the drum 3. They are also as so-called “free” outlets from the drum 3.
  • the first outlets 21 serve to drain the lighter phase LP.
  • This phase emerging from the drum 3 is collected in the housing 1 in an upper collecting ring chamber 23 of the housing 1.
  • This collecting ring chamber 23 is designed in such a way that the phase collected in it is directed to the outlet 10 of the collecting ring chamber 23. This can be achieved by having the outlet 10 at the lowest point of the collecting ring chamber 23.
  • the collecting ring chamber 23 is open radially inwards towards the rotating drum 3 and is designed at a distance such that liquid spraying out of the respective outlet 21 is essentially only sprayed into the associated collecting ring chamber 23 - which is at the same axial level - during the centrifugal separation.
  • a chamber 25 that does not serve to drain a phase can optionally be formed below the collecting ring chamber 23, a chamber 25 that does not serve to drain a phase can optionally be formed.
  • This chamber 25 can optionally have a leakage drain (not shown here).
  • the first collecting ring chamber 23 and the chamber 25 can be separated from each other by a first, here conical wall 26, which extends conically inwards and upwards from the outer shell of the housing 1 and ends radially in front of the drum 3 at a distance from the latter.
  • the product phase LP is drained from the housing 1 through the outlet 10.
  • Nozzles can be provided in the area of the outlet 10 on the outside of the housing 1 in order to be able to easily connect lines and the like.
  • the nozzles are preferably also made of plastic.
  • the housing 1 can be composed of several plastic parts which are sealed together, for example by adhesive or welding.
  • the first paring disc 33 is provided, which extends essentially radially and merges into an axially extending drain pipe 34 as a paring disc shaft, which the lower axial boundary wall 7 of the housing 1.
  • the paring disk 33 has an outer diameter ru.
  • ru > ro applies.
  • the inlet openings 33a of the paring disk 33 are thus located on a larger diameter or radius ru than the outlets 21 for the light phase LP on the radius ro. This makes it possible to use the paring disk 33 to discharge a heavier phase HP from the drum 3 relative to the lighter phase LP.
  • the paring disk 33 is stationary when the separator is in operation and its outer edge dips into the heavier phase HP rotating in the drum 3.
  • the HP phase is drained inwards through the channels in the paring disc 33.
  • the paring disc 33 thus serves to drain the HP phase in the manner of a centripetal pump.
  • the peeling disc 33 can be arranged in a simple and compact manner in the drum 3 below the distributor 14 and below the plate pack 17.
  • the radius ru corresponds to the immersion depth of the peeling disc 33.
  • the discharge pipe 34 is led out of the housing 1 with one end downwards from the drum and through the lower boundary wall 7, but does not touch the drum 3.
  • the discharge pipe 34 can be formed as one piece with the housing 1 or inserted into it in a sealed manner.
  • a hose or the like can be connected to the discharge pipe as a discharge line 35.
  • the discharge pipe passes through the housing 1 and the lower magnetic bearing 5 concentrically to the axis of rotation D of the rotor 2, then extends axially within the housing 1 into the paring disk 33.
  • a controllable, in particular electrically controllable, control valve 36 is inserted into the outlet for the heavy phase HP, in particular into the discharge line 35 for the heavier phase HP.
  • the control valve 36 can be used to throttle the volume flow of the heavy phase HP in the discharge line 35 and to increase the immersion depth of the associated peeling disk.
  • a control device 37 is preferably provided.
  • the control valve 36 is preferably connected to the control device 37 wirelessly or by wire.
  • the control device 37 can also be designed and provided for controlling the magnetic bearings 4, 5 and the drive.
  • the light phase LP is also discharged via a peeling disc.
  • a second peeling disc 22 is provided in the upper region of the drum 3, the inlet openings 22a of which can in turn be located on a smaller radius ro than the radius ru of the inlet of the first - lower - peeling disc 33 for the heavier phase.
  • the shaft of this second paring disc 22 can surround the inlet pipe 8 like an annular channel like an outer drain pipe 24 and can be tightly connected to the housing 1 instead of the inlet pipe 8 or be formed as one piece with it.
  • the drain pipes 24, 34 of the two paring discs 22, 33 are thus Fig. 2 at opposite ends of the drum 3. They are also led out of the housing 1 at opposite ends. They can be inserted into the housing 1 in a sealed manner. However, they can also be made in one piece from plastic.
  • the inlet pipe 12 can be connected to the upper end of the paring disc shaft 24. A radial or tangential connection piece 24a can be led out of the paring disc shaft 24.
  • a discharge line 40 for discharging the light phase can be connected to this, which can lead into a bag or tank, for example. Accordingly, the ends of the pipes 12 and 34 can also be designed as connections for connecting hoses or the like ( Fig.2 , but also Fig. 1 ).
  • controllable, in particular electrically controllable, control valve 39 is also inserted into the discharge line 40 for the light phase LP.
  • the control valve 39 can be used to change the volume flow of the light phase LP, in particular to throttle it more or less, and thus to change the immersion depth of the second paring disk 22.
  • the control valve 39 is also connected to the control device 37 wirelessly or by wire, so that it can be controlled by the control device 37.
  • the respective peeling disk 22, 33 is a cylindrical and essentially radially aligned disk provided with several, for example one to six, channels, which is stationary during operation and has channels so that a type of centripetal pump is formed.
  • the respective peeling disk 22 or 33 dips with its outer edge into the phase LP or LP rotating in the separator. HP.
  • the respective phase LP, HP is diverted inwards through the channels in the paring disc and the rotation speed of the respective phase LP, HP is converted into pressure.
  • the respective paring disc 22, 33 thus replaces a drain pump for the respective phase LP, HP.
  • the paring discs thus each work as a centripetal pump. They can be made of plastic.
  • a third peeling disc could also be provided, which could be used to remove another phase.
  • the respective separator is provided with its reusable components.
  • This includes the frame I and the drive and stator units 4a, 5a of the magnetic bearing devices.
  • This also includes a control unit 37.
  • a separator insert II is then provided and mounted on the frame I. To do this, the stator units 4a and 5a only need to be moved apart.
  • the separator insert is then inserted in a form-fitting manner and the stator units are moved towards each other. This ensures that the housing is securely held in place against rotation.
  • hoses are connected to the nozzles that lead into tanks or bags.
  • the respective separator insert of the Fig.1 and 2 can therefore preferably also have at least hoses and nozzles which can be connected to further lines (not shown here) and containers such as bags, tanks, pumps and the like.
  • phase HP flows radially outwards in the drum 3 in the separation chamber. There, the phase HP leaves the drum on a radius ru through the channels of the stationary peeling disk 33.
  • the lighter phase LP flows radially inwards in the drum 3 in the separation chamber and rises through a channel 38 on a shaft of the distributor. There The LP phase leaves the drum after Fig. 1 and 2 each on a radius ro.
  • the separation process can be easily influenced using the control valve(s) 36, 39. This results in an optimization of the separation process.
  • the main application of the separator according to the invention is cell separation in the pharmaceutical industry.
  • the performance range is intended for the processing of broths from fermenters in the size range of 100 l - 4000 l as well as for laboratory applications.
  • separators are used are also conceivable: chemicals, pharmaceuticals, dairy technology, renewable raw materials, oil and gas, beverage technology, mineral oil, etc.
  • the separators shown enable the production of a separator insert in which all components that come into contact with the product can preferably be made of plastic or other non-magnetic materials that can be disposed of after a single use or sent for recycling. Cleaning after use is therefore not necessary.
  • the separator and its operation can therefore be implemented cost-effectively.
  • Fig. 5 shows a modification of a separator insert II of the Fig. 4 in a second embodiment, wherein identical features are provided with analogous reference numerals.
  • the special feature of this second embodiment is that the form-locking means 41b and the corresponding form-locking means 41a provided on the frame I only exist on one side between the frame I and the housing of the separator insert II, thus also enabling axial and rotational locking of the separator insert II relative to the frame I. This reduces, among other things, the complexity of the structure.

Landscapes

  • Centrifugal Separators (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Refuse Collection And Transfer (AREA)
EP21758091.9A 2020-08-14 2021-08-05 Separatoreinsatz und separator Active EP4196285B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020121422.7A DE102020121422A1 (de) 2020-08-14 2020-08-14 Separator
PCT/EP2021/071878 WO2022033953A1 (de) 2020-08-14 2021-08-05 Separatoreinsatz und separator

Publications (2)

Publication Number Publication Date
EP4196285A1 EP4196285A1 (de) 2023-06-21
EP4196285B1 true EP4196285B1 (de) 2024-10-02

Family

ID=77411709

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21758091.9A Active EP4196285B1 (de) 2020-08-14 2021-08-05 Separatoreinsatz und separator

Country Status (15)

Country Link
US (1) US20230302466A1 (pl)
EP (1) EP4196285B1 (pl)
JP (1) JP7703016B2 (pl)
KR (1) KR20230051273A (pl)
CN (1) CN116323006A (pl)
AU (1) AU2021324023A1 (pl)
BR (1) BR112023000945A2 (pl)
CA (1) CA3185089A1 (pl)
DE (1) DE102020121422A1 (pl)
DK (1) DK4196285T3 (pl)
ES (1) ES2998186T3 (pl)
FI (1) FI4196285T3 (pl)
IL (1) IL300321B1 (pl)
PL (1) PL4196285T3 (pl)
WO (1) WO2022033953A1 (pl)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115245878B (zh) * 2022-09-22 2022-12-02 江苏捷达离心机制造有限公司 一种具有残留清除功能的离心机
US12506371B2 (en) 2022-12-12 2025-12-23 Levitronix Gmbh Electromagnetic rotary drive

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB435231A (en) * 1933-10-31 1935-09-17 Separator Ab Improvements in centrifugal separators
GB440240A (en) * 1934-05-28 1935-12-23 Ramesohl & Schmidt Ag Separator with frothless discharge of the centrifuged substance
US4005817A (en) 1975-09-18 1977-02-01 Dorr-Oliver Incorporated Nozzle type centrifuge
FR2399758A1 (fr) 1977-08-03 1979-03-02 Aerospatiale Corps tournants suspendus magnetiquement
SE462077B (sv) * 1986-03-12 1990-05-07 Alfa Laval Separation Ab Centrifugalseparator med sluten aaterfoering av tungkomponent
GB9703685D0 (en) * 1997-02-21 1997-04-09 Glacier Metal Co Ltd Centrifugal separator
SE514774C2 (sv) * 1998-12-21 2001-04-23 Alfa Laval Ab Reglerutrustning för centrifugalseparator samt sätt att reglera en separeringsoperation
US20030114289A1 (en) 2001-11-27 2003-06-19 Merino Sandra Patricia Centrifuge with removable core for scalable centrifugation
EP2273124B1 (de) 2009-07-06 2015-02-25 Levitronix GmbH Zentrifugalpumpe und Verfahren zum Ausgleichen des axialen Schubs in einer Zentrifugalpumpe
DE102009032618A1 (de) * 2009-07-10 2011-01-13 Gea Westfalia Separator Gmbh Zentrifuge mit einer um eine Drehachse drehbaren Schleudertrommel
SE534773C2 (sv) * 2010-04-09 2011-12-13 Alfa Laval Corp Ab Centrifugalseparator anordnad inuti en förbränningsmotor
DE102012105499A1 (de) 2012-06-25 2014-01-02 Gea Mechanical Equipment Gmbh Separator
KR101409695B1 (ko) * 2012-09-25 2014-06-19 최국진 원심분리기의 분리판
ES2586838T3 (es) * 2013-10-29 2016-10-19 Alfa Laval Corporate Ab Método de procesamiento de frutos cítricos
CN204769182U (zh) * 2015-07-16 2015-11-18 南京中船绿洲机器有限公司 一种碟式分离机控制阀
DE102017128027A1 (de) * 2017-11-27 2019-05-29 Gea Mechanical Equipment Gmbh Separator
CN207745987U (zh) * 2017-12-25 2018-08-21 江苏巨能机械有限公司 三相碟式分离机
JP7131939B2 (ja) * 2018-03-29 2022-09-06 森永乳業株式会社 フレッシュクリーム及びその製造方法
EP3666394A1 (en) * 2018-12-10 2020-06-17 Alfa Laval Corporate AB Modular centrifugal separator and base unit thereof and system
CN112221721B (zh) * 2020-08-20 2022-10-14 南京中船绿洲机器有限公司 一种碟式分离机

Also Published As

Publication number Publication date
KR20230051273A (ko) 2023-04-17
US20230302466A1 (en) 2023-09-28
WO2022033953A1 (de) 2022-02-17
ES2998186T3 (en) 2025-02-19
DK4196285T3 (da) 2024-12-16
BR112023000945A2 (pt) 2023-02-23
CA3185089A1 (en) 2022-02-17
CN116323006A (zh) 2023-06-23
FI4196285T3 (fi) 2024-12-13
JP7703016B2 (ja) 2025-07-04
EP4196285A1 (de) 2023-06-21
IL300321B1 (en) 2025-12-01
IL300321A (en) 2023-04-01
DE102020121422A1 (de) 2022-02-17
PL4196285T3 (pl) 2025-02-24
AU2021324023A1 (en) 2023-02-09
JP2023537539A (ja) 2023-09-01

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