Separator insert, separator and method for replacing a separator insert

Abstract

The invention relates to a separator comprising a housing (I) and a separator insert (II) which is arranged replaceably on the housing, which separator insert is designed for separating a flowable suspension into at least two flowable phases of different densities in a centrifugal field, which separator insert constitutes a preassembled, replaceable unit for installation in a stator unit on the housing of the separator; on the housing there are receiving parts (I-4, I-5) which are spaced apart from one another and which have stator units (4a, 5a) with magnetic bearing means (4, 5), the housing (1) of the separator insert is held torsionally between the receiving parts in such a way that a rotor (2) with a rotating drum is held rotatable; the relative position of the receiving parts of the stator units with magnetic bearing means can be changed in such a way that the separator insert is replaceable; the housing and at least one receiving part have corresponding form-locking means in order to hold the housing torsionally on the at least one receiving part.

Description

TECHNICAL FIELD

[0001] The present invention relates to a separator insert for a separator, a separator having such a separator insert and a method for replacing a separator insert. BACKGROUND

[0002] A separator in the sense of the present document serves for separating a flowable suspension as a raw product into phases of different densities in a centrifugal field. In a wide variety of applications, steam sterilization of the separator used is necessary. A relatively "small", steam sterilizable separator with a disc pack, which has been introduced onto the market by the present applicant, is the separator "CSC 6" with an equivalent clarification area of 6000 m 2 In some cases, however, this machine is still relatively large in the laboratory. Known separators with a disc pack available on the market are driven by means of a main shaft, which in turn is driven directly by a motor or via a transmission by a motor. In addition, there are known machines made of high-quality steel. For these reasons, filters are currently very frequently used in the laboratory instead of centrifugal separators. In the case of separators with a disc pack and a disposable plastic assembly (disposable technology, pre-qualified plastic parts for single use), steam sterilization (SIP, steam-in-place sterilization) can not be necessary. It can be suitable, inter alia, for use in biotechnology.

[0003] A separator for separating a flowable product into different phases is known from WO 2014 / 000829 A1, which has a rotatable bowl and means for processing a suspension in a centrifugal field of solids or separating a heavy, solid-like phase from a lighter phase in a centrifugal field, which are arranged in the bowl, one, several or all of the following elements being made of plastic or a plastic composite: the bowl lower part, the bowl upper part, the clarification means. It is thus possible to design a part of the bowl or preferably even the entire bowl, preferably together with the inflow and outflow system or area for single use, for single use, which is of interest and advantageous in particular for the processing of pharmaceutical products, such as fermentation broth or the like, since after the run, in order to process a respective product batch, a cleaning of the product-contacting components of the bowl, which is preferably continuous during the processing of the product batch, is not necessary, but the bowl can be replaced entirely. Such a separator is thus very advantageous, precisely from a hygienic point of view. In order to achieve a physical separation between the disposable bowl and the drive device, a contactless coupling between the drive device and the bowl is advantageous.

[0004] The further solution is shown by DE 102017128027. Here, the support device is designed as a magnetic bearing, and one of the magnetic support devices is preferably also used as a drive device for a rotating bowl which is held in suspension in operation. The mechanical components for rotating and supporting the bowl are thus dispensed with, which facilitates a separator which has a separator insert which is used once, since the replacement of the separator insert can be operated very simply. The invention also utilizes these advantages. SUMMARY

[0005] Against this background, it is the object of the invention to configure a separator insert of the type mentioned at the outset in such a way that the separation process can be better controlled, which can be used as or designed as a disposable element.

[0006] The invention achieves the stated object by a separator which comprises a housing and a separator insert which is arranged replaceably on the housing, which is designed for separating a flowable suspension into at least two flowable phases of different densities in a centrifugal field, and which constitutes a preassembled, replaceable unit for installation in a stator unit on the housing of the separator, and which has at least: a housing which is stationary in operation, which is designed as a container which is closed apart from a plurality of openings; a rotor with a bowl which is arranged within the housing and is rotatable about an axis of rotation, which bowl has one or a plurality of openings; a separating device which is arranged in the bowl; at least two rotor units for magnetic support devices at two axially spaced-apart positions of the rotor with the bowl, by means of which the rotor with the bowl can be held in suspension in the housing in operation, can be supported in a rotatable manner and can be set in rotation, and furthermore, on the housing, receiving parts are formed which are spaced apart from one another, which have stator units of the magnetic support devices, the housing of the separator insert is held torsionally between the receiving parts in such a way that the rotor remains rotatable, the relative position of the receiving parts with the stator units of the support devices can be changed in such a way that the separator insert is replaceable, and at least one of the housing and the receiving parts has corresponding form-locking means in order to hold the housing torsionally on the at least one receiving part.

[0007] By "in operation" is meant that the rotor is rotating during the centrifugal process.

[0008] It is possible in accordance with the application to realize a separator which has a disposable module comprising the disposable components "rotor" and "housing", whereas at least the frame and the components of the support and drive device can be reusable. By changing the position, the corresponding form-locking means can be brought into engagement and can be brought out of engagement in order to exchange the separator insert. The application realizes a production of a separator in which disposable separator inserts can be employed, which are preferably designed in such a way that all components which come into contact with the product are made of plastic or other non-magnetic material, which can be recycled after one-time use. Cleaning after use is thus eliminated. The machine and its operation can thus become significantly more advantageous. If necessary, the magnets can be recycled.

[0009] Here, it is simple and reliable to form the support means on the frame as mutually spaced receiving parts between which the separator insert can be mounted replaceably in a torque-proof manner.

[0010] It can additionally be provided that the separator insert can be fixed on the frame in a form- and force- and torque-proof manner.

[0011] According to a particularly simple solution, the receiving parts and the housing can have corresponding pins and recesses as the corresponding form-locking means in order to hold the housing on the receiving parts in a torque-proof manner. It is particularly simple if the receiving parts and the pins respectively extend axially. For this purpose, it can additionally be provided that the position of the receiving parts, in particular on the operating table, is adjustable in order to be able to exchange the separator insert. For this purpose, the relative distance of the receiving parts can be adjustable, but one or both receiving parts can also be designed reversibly, pivotably, rotatably or movably in order to be able to position the separator insert between the receiving parts. Preferably, according to a solution, the relative vertical position can be changed by adjusting the vertical relative distance of the receiving parts of the stator unit with the support means, so that the separator insert is replaceable, and thus, by this adjustment, the corresponding form-locking means can be brought into engagement and can be brought out of engagement.

[0012] The exchange of the separator insert after processing a batch can thus be carried out correspondingly simply and quickly.

[0013] According to a particularly simple first solution, only one of the two receiving parts can be arranged adjustably, in particular height-adjustably, on the frame, in particular on the operating table, whereas the other receiving part is arranged fixedly in position on the frame, in particular on the operating table. Alternatively, it is possible for both receiving parts to be arranged adjustably, in particular height-adjustably, on the frame, in particular on the operating table.

[0014] It is additionally particularly structurally advantageous and simple if one or both receiving parts are arranged movably on the frame, in particular on the operating table.

[0015] It is further advantageous that, when the separator insert is installed in one or both of the receiving parts, one or more axially leading hoses on the separator insert are guided through the respective through-hole of the respective receiving part.

[0016] Here, it is preferred, for reasons of simplicity and practicality, that the rotor units are arranged on both axial ends of the bowl, and that two corresponding stator units are formed on the housing of the separator. Thus, the magnetic bearing device is formed on both axial ends of the bowl.

[0017] It is particularly advantageous here that, according to the application, the functionally necessary positioning of the stator units and rotor units relative to one another is well mechanically ensured. This particularly relates to the exact axial and radial centering of the respective coaxially nested stator units and rotor units.

[0018] The application also achieves a separator insert for separating a flowable suspension into at least two flowable phases of different densities in a centrifugal field, which separator insert forms a preassembled, replaceable unit for installation in a stator unit of a housing of a separator, and which separator insert has at least: a housing which is stationary in operation, which housing is designed as a container which is closed with the exception of one or more openings; a rotor with a bowl which is arranged within the housing and is rotatable about an axis of rotation, said rotor having one or more openings; a separator device which is arranged in the bowl; at least two rotor units for a magnetic bearing device at two axially spaced-apart positions of the bowl, by means of which magnetic bearing device the rotor with the bowl can be held in suspension, can be rotatably supported and can be placed in rotation in the housing in operation, said housing having form-fitting means in order to hold the housing torsionally on a support. This separator insert is suitable as a replaceable module for a separator, in which the housing, in particular the receiving parts of the housing, form said support.

[0019] The application also achieves an advantageous and simple method for replacing a first separator insert of a separator according to the application by a second separator insert, comprising the following steps:

[0020] a) providing a separator having a first separator insert which is fitted on a housing;

[0021] b) adjusting the relative position, in particular the relative distance, of the receiving parts, and loosening the form-fitting connection between the housing and the first separator insert, and removing the first separator insert from the receiving parts;

[0022] c) providing a second separator insert (before, while or after steps a) and b);

[0023] d) mounting the second separator insert into one of the receiving parts, such that the corresponding form-locking means on one end of the housing and on one of the receiving parts engage with one another; and

[0024] e) adjusting the relative position, in particular the relative distance, of the receiving parts until the corresponding form-locking means on both ends of the housing of the separator insert and on both receiving parts engage with one another against rotation.

[0025] According to an advantageous variant, at least one of the two magnetic bearing devices preferably also forms a rotational drive device for the rotating drum, which drive device is also suitable for driving the rotating drum at a freely adjustable rotational speed or at a freely selectable rotational direction. It can be provided here, preferably, that one or both magnetic bearing devices act radially and axially and keep the rotor in a floating state in the container at a distance from the container during operation.

[0026] In interaction, the rotor unit and the stator unit form a magnetic bearing device. By means of these magnetic bearing devices, the rotating drum can be axially and radially supported and kept in a floating state.

[0027] According to a further advantageous and structurally particularly simple to implement variant, it is additionally provided that the further opening of the rotating drum is designed as a free radial outlet for a second phase from the rotating drum to the housing, the second phase being able to be conducted out of the housing. Furthermore, it can be advantageously and simply provided for this purpose that the free outlet is equipped with a catch annular chamber of the housing, the catch annular chamber having an outflow from the housing.

[0028] According to a further advantageous and structurally particularly simple to implement variant, however, it can also be additionally provided that the further opening of the rotating drum is formed as a stripping disc for conducting the further flowable phase out of the rotating drum. It can be advantageously provided here that the stripping disc has an outflow tube, which is formed coaxially to the inflow tube and emerges coaxially therefrom from the rotating drum and passes through an opening in the first axial boundary wall of the housing.

[0029] In order to control the separation process well, i.e. to be able to control the separation process either open-loop or closed-loop, it can furthermore be provided that an adjusting valve is arranged downstream of the first stripping disc and / or of the second stripping disc on the flow side, if appropriate on the outflow side, one or more of the adjusting valves being controllable by a control device.

[0030] It can furthermore be preferably provided that a disc pack is arranged in the rotating drum as a separation device and the stripping disc is arranged in the rotating drum below the distributor and below the disc pack, i.e. in a region which would otherwise normally be required for a stationary drive spindle, which is not necessary here. The stripping disc serves for conducting the flowable first phase out of the rotating drum.

[0031] Because of the structural simplicity and reliability, it is preferred that the rotor units for the magnetic bearing device are arranged on both axial ends of the rotor drum, and that the inflow pipe and the outflow pipe of the first stripping disc each pass through one of the two rotor units in axial direction.

[0032] It is particularly advantageous and practical that the separator insert is configured as a preassembled unit. Here it can be provided in particular that all the product-contacting elements of the insert are made of plastic or another non-magnetic material, which can be replaced as a whole and is completely recyclable after use. Cleaning and possible steam sterilization of the separator insert are therefore no longer necessary.

[0033] The corresponding bearing device can function permanently magnetically and / or electromagnetically, said bearing device implementing radial and axial bearing and / or rotational drive of the rotor drum.

[0034] On the outer circumference, the inflow pipe or the stripping disc shaft surrounding the inflow pipe is preferably mounted sealingly into the housing or is configured in one piece with the housing.

[0035] The rotor drum can be configured monotonically or biconically. In addition or alternatively, the rotor drum can also have one or more cylindrical sections. Furthermore, the rotor drum can consist of multiple parts, in particular of an upper part and a lower part, which are preferably connected to one another (for example by gluing or welding) after the internal components have been installed and assembled. Similarly, the housing can consist of multiple parts, in particular of an upper part and a lower part, which are preferably connected to one another (for example by gluing or welding) after the internal components, in particular the rotor, have been installed and assembled.

[0036] The outflow can have a connection piece on the outside of the housing, which is sealingly configured on the housing on the outer circumference, so that hoses or the like can thus be connected in a simple manner. However, the hoses can also already be preassembled on the connection piece, so that they are completely and, if necessary, aseptically closed. The connection piece can extend radially, tangentially or obliquely to the radial direction, for example.

[0037] The entire separator insert can be provided as a sealed unit as such after its manufacture, into which dirt cannot enter. For this purpose, the connection piece can be detachably closed sealingly on the opening of the housing. On the connection piece, hose sections can thus be provided, which have openable and closable connectors, by means of which the separator insert can be connected to other elements of the inflow and outflow system, such as bags or tanks or hoses or hard pipes.

[0038] These separators are suitable for operation at variable, also relatively high rotational speeds. In addition, the separators can also be well suited for single-use processing, for example for centrifuging product batches, for example from 100 liters up to several thousand liters, for example 4000 liters, of flowable fermentation broth as a suspension into different phases and then being recovered. Here, a particular advantage is that all product-contacting components of the separator can be installed, operated and then recovered as a prefabricated and already sterile unit. This prefabricated unit comprises at least the rotor with the rotor drum, the separation disc, the inflow distributor and the rotor magnet or rotor unit, and the housing with the inflow and outflow. In addition, for this purpose, the unit can contain the inflow and outflow tubes, for example hoses, and the measuring devices or other product-contacting components, which are intended for single use and are recovered together with the separator unit after use.

[0039] And finally it can further be advantageously provided that the housing has only openings for the inflow tube and for the outflow and is otherwise hermetically closed. For this purpose it can be provided that the inflow tube and the outflow project in the manner of a stub from the housing, which are sealingly connected to the housing or are formed in one piece with the housing. BRIEF DESCRIPTION OF DRAWINGS

[0040] The application is explained in more detail below by means of embodiments with reference to the drawings, in which further advantageous variants and configurations are also discussed. It is emphasized that the embodiments of the application discussed below are to be understood as non-exclusive illustrations and that variants and equivalent measures not described can also be realized and fall within the scope of protection. The drawings are as follows:

[0041] Figure 1 Schematic sectional view of a replaceable first separator insert of a separator, together with a schematic view of the inflow and outflow system of the separator and the control unit;

[0042] Figure 2 Schematic sectional view of a replaceable second separator insert of a separator, together with a schematic view of the inflow and outflow system of the separator and the control unit;

[0043] Figure 3 Schematic view of a separator with a reusable housing and with a replaceable separator insert, which here is provided in the manner of Figure 1 with a hose section on it;

[0044] Figure 4 Schematic view of Figure 1 and Figure 3 a replaceable separator insert and a hose section provided on it in perspective view;

[0045] Figures 5-7 Schematic view of a separator with a reusable housing and with a replaceable separator insert, which here is provided in the manner of Figure 4The replaceable separator insert is mounted into Figure 3 the housing of the separator in three steps following one another;

[0046] Figure 8 A perspective view showing a variant of the replaceable separator insert. DETAILED DESCRIPTION

[0047] Figure 3 A separator is shown, which has a reusable housing I and a replaceable separator insert II in the manner of Figure 1 for centrifuging a product, a suspension S, into phases of different density, HP, LP. The separator insert can also be configured in the manner of Figure 2 .

[0048] The separator insert II is preferably configured as a prefabricated unit. In particular, the separator insert II is configured as a one-piece replaceable or replaceable and as a preassembled unit disposable separator insert, which is made completely or predominantly of plastic material or plastic composite material.

[0049] The separator insert (the stator unit 4a, 5a of the magnetic bearing device 4, 5 also belongs to it) is described exemplary in Figure 1 and 2 alone. It can be recycled after processing a product batch and can be replaced with a new separator insert II.

[0050] In the manner of Figure 1 and 2 , the separator insert II of the separator accordingly has a housing 1 and a rotor 2 mounted in the housing 1, which is rotatable relative to the housing 1 in operation. The rotor 2 has a rotational axis D. This rotational axis can be oriented vertically, which corresponds to the configuration of the housing I. However, the rotational axis can also be oriented differently in space, if the housing is also configured accordingly.

[0051] The rotor 2 of the separator insert II has a rotatable bowl 3. The rotor 2 is rotatably supported at two locations spaced apart from one another in the direction of the rotational axis by corresponding magnetic bearing devices 4, 5. Preferably, the rotor 2 or then consequently also the bowl 3 is rotatably supported on both axial ends. Here, the separator insert II has rotor units 4b, 5b of the magnetic bearing devices 4, 5. In contrast, stator units 4a, 5a of the magnetic bearing devices 4, 5 are provided on the housing I.

[0052] The magnetic bearing devices 4, 5 preferably act radially and axially and preferably hold the rotatably supported rotor 2 in suspension spaced apart from the housing 1 in the housing 1.

[0053] Such separators with a disposable replaceable separator insert can be meaningful and advantageous in the processing of products, wherein it is possible to rule out with very high safety that dirt enters the product, a flowable suspension or a phase of the suspension, during centrifugal processing, or that cleaning and sterilization of the separator is very costly or even impossible.

[0054] The gantry I has an operating table I-1. This operating table can, but does not have to, be supported on a trolley I-2 with rollers I-3. On the operating table I-1 there can be formed receiving portions I-4 and I-5, which are also used in operation for receiving and holding a separator insert II. Preferably, a first axial end of the separator insert II projects into or close to the lower receiving portion I-4 from below, and a lower end of the separator insert II projects into or close to the other receiving portion I-5 from above, and in this case the separator insert II is held torsionally on the operating table I-1 and thus torsionally on the gantry I.

[0055] One or both receiving portions I-4 and / or I-5 can be arranged next to the gantry I, in particular next to the operating table I-1. Here, it can additionally be provided according to one variant, for example, that the lower receiving portion I-5 is formed fixedly in position on the operating table I-1. It is then advantageous if the other upper receiving portion I-4 is formed height-adjustably on the operating table I-1.

[0056] It is advantageous in this case if the operating table I-1 has such a vertical extension / length that the separator insert is held fixedly in position by the two height-adjustable receiving portions I-4, I-5 in a first position of the height-adjustable receiving portion I-4 and is replaceable in another upper position.

[0057] It is advantageously provided that the receiving portions I-4 and I-5 with the stator units 4a, 5a can be moved away from each other and again towards each other in the axial direction on the gantry I in order to replace the separator insert II, i.e. to remove the old separator insert II from the gantry I and to replace it with a new separator insert. This can be achieved, for example, by means of guide rails on the operating table and movable and lockable carriages (not described in detail) on the height-adjustable receiving portions.

[0058] It is therefore provided that the relative distance of the receiving portions I-4 and I-5 with the stator units 4a, 5a of the magnetic bearing device 4, 5 is adjustable in order to be able to replace the separator insert II.

[0059] In the respective receptacles I-4 and I-5, respective stator units 4a, 5a of the two magnetic bearing devices 4 and 5 can be provided. Control and power electronics for this purpose can be provided in or on the machine frame I, at the side of the operating console I-1 or above the operating console.

[0060] On the receptacles I-4 and I-5 and on the housing 1 of the separator insert II, which is not rotating in operation, corresponding form-locking means can be formed, so that the separator insert II can be mounted in the stator units 4a, 5a in a torque-proof manner. The upper and lower stator units 4a, 5a can accordingly have axes of alignment with one another.

[0061] According to a particularly simple solution, for this purpose, the housing 1 and the receptacle I-4 or I-5 with the stator unit 4a, 5a can have a protrusion, for example a pin or a tab, and a recess, for example a hole, as corresponding form-locking means, in order to hold the housing 1 on the stator unit and thus on the machine frame I in a torque-proof manner. The corresponding form-locking means can also be formed directly on the machine frame I.

[0062] The position of these corresponding form-locking means also defines the functionally necessary position of the stator units 4a, 5a and the rotor units 4b, 5b relative to one another. This relates in particular to the exact centring of the stator units 4a, 5a and the rotor units 4b, 5b, which are respectively coaxially nested in one another. Here, if necessary, the respective receptacle can also exert a holding force (from above and below) in the axial direction onto the housing, in order to also hold this in a force-locked manner, if necessary.

[0063] According to a particularly simple solution, for this purpose, the housing 1 and the receptacle I-4 or I-5 with the stator unit 4a, 5a can have a protrusion, for example a pin or a tab, and a recess, for example a hole, as corresponding form-locking means, in order to hold the housing 1 on the stator unit and thus on the machine frame I in a torque-proof manner. The corresponding form-locking means can also be formed directly on the machine frame I. Figures 3-7 , the aforementioned measures are implemented exemplarily as follows.

[0064] The receptacles I-4 and I-5 of the machine frame I with the stator units 4a, 5a have respectively a plurality of pins 41 projecting in the axial direction, and the respective separator insert II can have on the housing 1 corresponding, for example axially extending, blind holes as recesses 42.

[0065] In this case, the receiving portion I-4 with the stator unit 4a here has a pin 41 (not visible here) projecting in the axial direction or here in the vertical direction downwards, and the separator insert II has a corresponding blind-hole-like recess 42 (visible here) above in the vertical direction, and the lower receiving portion I-5 of the lower stator unit 5a accordingly has a pin 41 (visible here) projecting in the axial direction or here in the vertical direction upwards, and the separator insert II has a corresponding blind-hole-like recess 42 (not visible here) below in the axial direction. Here, the four pins 41 and the four recesses 42 are distributed accordingly purely by way of example on the corners of an imaginary polygon, in particular a square, and they are formed on the receiving portions I-4, I-5 and the housing 1 of the separator insert II accordingly above and below. In Figures 3-7 the corresponding form-locking means, i.e. the pins 41 and the recesses 42, are distributed circumferentially around the separator insert II. However, it is possible for only one form-locking means to be provided instead of a plurality of form-locking means.

[0066] However, the corresponding form-locking means can also be arranged asymmetrically in order to ensure that the separator insert can be mounted in only one unique orientation.

[0067] The stator units 4a, 5a can furthermore have openings, in particular through-holes 43, in order to receive lines, for example hoses 44, 45, connected to the separator insert II upwards and / or downwards.

[0068] One or both receiving portions I-4 and I-5 are formed vertically adjustably. In this regard, one of the two receiving portions I-4 or I-5 can also be formed fixedly on the housing I. It is therefore also conceivable for one of the two receiving portions I-4 or I-5, for example the lower receiving portion, to be formed on a wall of the housing I and to be non-adjustable. It is then sufficient for the housing I to be formed such that the respective other receiving portion I-4 or I-5 is adjustable, in particular height-adjustable in the vertical direction and / or formed on the housing I.

[0069] This is apparent from the common observation Figures 3-7 that the two receiving portions I-4, I-5 are arranged vertically above one another.

[0070] Figure 5 The housing I is shown before the separator insert II is mounted.

[0071] The two stator units 4a, 5a are moved away from one another so far that the respective separator insert can be lifted axially between the two receiving portions with the stator units 4a, 5a Figure 5 , 6 The separator insert II is then arranged inside / onto the lower receiving portion I-5 Figure 6 and 7) such that the corresponding form-locking means, here the pin 41 and the recess 42, engage with one another. Furthermore, the hose 45 on the lower end of the housing 1 passes through the through-hole 43 of the lower, and thus axially assigned, stator unit 5a downwards Figure 6 Now, the upper receptacle I-4 is lowered until the corresponding form-locking means of the housing 1 of the separator insert II, here the pin 41 and the recess 42, also reliably engage with one another Figure 7 In this case, the upper hose 44 on the housing 1 passes through the through-hole 43 of the upper receptacle I-4. Now, the separator insert II is reliably held on the rack I against rotation. Thus, the centrifugation and separation process for processing one product batch in a centrifugal field can be started. After processing the prescribed batch, the upper separator unit is again lifted upwards until the separator unit is removed from the rack I and can be replaced with a new separator unit.

[0072] The further structure of the exemplary preferred separator insert II is explained in more detail below with reference to Figure 1 and Figure 2 The structure of the drive and bearing system of the separator, the structure of the control device of the separator and the structure of the inflow and outflow system of the separator. The invention is not limited thereto. In particular, the inflow and outflow lines can also be implemented differently on the separator insert II.

[0073] Firstly, the rotor units 4b, 5b can essentially be configured in the manner of an inner ring made of a magnet, in particular a permanent magnet, and the reusable stator units 4a, 5a can essentially be configured in the manner of an outer ring for axially and radially bearing the rotor 2 (for example, above) or alternatively also for rotational driving (for example, below).

[0074] Thus, the rotor units 4b and / or 5b as components of the separator drive device also constitute components of the rotational system or of the rotor. In other words, thus, the rotor of the drive device is a component of the bowl of the centrifugal separator.

[0075] One or both magnetic bearing devices 4, 5 thus preferably also serve as a drive device, which serves to rotate the rotor 2 with the bowl 3 in the housing 1. In this case, the respective magnetic bearing device constitutes a combined magnetic bearing and drive device. The magnetic bearing devices 4, 5 can be configured as axial bearings and / or radial bearings, which collectively support the bowl 3 on its ends in axial and radial direction during operation and generally keep the bowl floating and rotating during operation.

[0076] The magnetic bearing devices 4, 5 can be constructed essentially identically or essentially the same. Here, in particular only one of the two magnetic bearing devices 4, 5 is used as a supplement also as a drive device. Accordingly, the respective corresponding components of the magnetic bearing devices 4, 5 are constructed on the separator insert II, on the rotor 2 of the separator insert, and the further corresponding components are constructed on the housing I. Here, one or both stator units 4a, 5a can also be electrically connected with control and power electronics for operating the electromagnetic assemblies of the magnetic bearing devices.

[0077] The respective magnetic bearing device 4, 5 can work, for example, according to a combined electromagnetic and permanent-magnetic action principle.

[0078] Preferably, at least the axially acting magnetic bearing device 5 below is used for holding the rotor 2 in suspension in the housing 1 in the axial direction by magnetic levitation. This magnetic bearing device can have, for example, one or more first permanent magnets on the lower side of the rotor and further has electromagnets on the housing on one receiving portion, which electromagnets coaxially encompass the permanent magnets. The drive of the rotor can be realized electromagnetically. However, the drive can also be realized via a rotating permanent magnet.

[0079] Such bearing and drive devices are used, for example, by the company Levitronix, for example, for driving centrifugal pumps (EP 2 273 124 B1). They can also be used in the context of the present document. As a drive device, for example, a first Levitronix motor can be used "below", which simultaneously magnetically supports the bowl in the radial and axial direction. In addition, a second Levitronix motor (for example, structurally identical to the first, in addition to a control device in operation) can be provided, which can support the rotor 2 in the head portion in the radial and axial direction as a magnetic bearing device.

[0080] The rotor rotational speed can be variably adjustable by means of a control device 37 (see Figure 1 or 2) or by means of a control device of the magnetic bearing devices 4, 5 separate from this control device. Likewise, the rotational direction of the rotor 2 can be specified and changed accordingly.

[0081] In operation, the rotor 2 rotates. At this time, the rotor is thus held in suspension in the axial direction and centered in the radial direction. Preferably, the rotor 2 with the bowl 3 is operated at a rotational speed of 1000 revolutions per minute, preferably 5000 to 10000 revolutions per minute, perhaps also at 20000 revolutions per minute or less. The centrifugal forces resulting from the rotation cause the separation of the suspension to be treated, which has already been explained above, into different flowable phases LP, HP of different densities, and the outfeed of these phases, as will be explained in more detail later. Here, the treatment of the product batch is realized in continuous operation, which means that the phases separated from the suspension are completely outfed from the bowl again during operation.

[0082] It is thus very well possible that for the separator an entire separator insert is implemented together with the housing, which can be designed overall for single use, which is of interest and advantageous, in particular, in the handling of pharmaceutical products, such as fermentation broth or the like, since after the run for the handling of a respective product batch, no cleaning of the drum needs to be performed in the preferably continuous run during the handling of the product batch, since the entire separator insert is exchangeable. If necessary, individual elements, such as magnets, can be suitably recycled (see also DE 10 2017 128 027 A1).

[0083] The housing 1 is preferably made of a plastic material or a plastic composite material. The housing 1 can be constructed cylindrically and have a cylindrical outer circumference, on both end portions of which two radially extending axial boundary walls 6, 7 are constructed (top cover and bottom).

[0084] The drum 3 serves for centrifugal separation of a flowable suspension S in a centrifugal field into at least two phases LP, HP of different density, which can be, for example, a lighter liquid phase and a heavy solid phase or a heavy liquid phase.

[0085] The rotor 2 and its drum 3 have in the preferred variant a vertical axis of rotation D. However, the housing 1 and the rotor 2 can also be oriented differently in space. The subsequent description is directed to the described vertical orientation (D = vertical axis of rotation) Figure 3 In the case of other orientations in space, the orientation changes in accordance with the new orientation. In addition, if necessary, one or both outlets, which will also be discussed, are arranged differently.

[0086] The rotor 2 of the separator with the drum 3 is preferably completely or predominantly made of a plastic material or a plastic composite material.

[0087] The drum 3 is preferably always partially cylindrically and / or conically constructed. The same applies to the other elements in the rotor 2 and on the housing 1 (apart from the elements of the magnetic bearing 4, 5).

[0088] The housing 1 is designed in the manner of a container, which is constructed airtightly, apart from several openings / opening areas, which will also be discussed.

[0089] According to Figure 1 and 2 one of the openings is respectively constructed in the two axial boundary walls 6, 7 of the container, which are here exemplarily above and below.

[0090] According to Figure 1 and 2One of the openings - in the first axial boundary wall (here: the upper axial boundary wall) - allows or serves as an inflow 8 for the introduction of a suspension to be separated into at least two phases LP and HP of different densities in a centrifugal field through the housing 1 up to the introduction into the drum 3.

[0091] Here, the first phase is the lighter phase LP and the second phase is the heavier phase HP which is more dense than the first phase.

[0092] A second one of the openings - in the second axial boundary wall (here: the lower axial boundary wall) - allows or serves as an outflow for the direct discharge of the heavier second phase HP from the drum 3 through the housing 1.

[0093] The drum 3 also has openings which are matched to the openings of the housing.

[0094] An inflow pipe 12 for the suspension to be treated extends into an upper opening 12a on one axial end of the drum 3. The inflow pipe passes through the housing 1, in particular through an axial boundary wall 6 (here: the upper axial boundary wall) of the housing. On the outer circumference, the inflow pipe 12 leads towards the housing 1 in the direction of the Figure 1 The inflow pipe 12 is sealingly mounted in the housing, for example welded or glued, or, if necessary, formed as an injection-moulded part in one piece with the housing. The housing is preferably also made of plastic. The inflow pipe 12 projects with one end from the housing 1 upwards and outwards and through the upper axial boundary wall 6 up to the drum 3, without contacting the drum 3.

[0095] According to Figure 1 (but also according to Figure 2 ), the inflow pipe 12 passes through the housing 1 and one of the magnetic bearing devices 4 concentrically to the rotational axis of the rotor 2, then further extends axially within the housing 1 into the rotatable drum 3 and ends there with its other end, the free discharge end.

[0096] According to Figure 1 and 2 , the inflow pipe 12 respectively leads in the drum 3 into a distributor 13 which is rotatable together with the drum 3. The distributor 13 has a tubular distributor shaft 14 and a distributor foot 15. One or more distributor channels 16 are formed in the distributor foot 15. A stack of separation discs 17, which are here conical, can be arranged on the distributor 13. The distributor 13 and the separation discs 17 are preferably also made of plastic.

[0097] Furthermore, not only according to Figure 1 but also according to Figure 2, a first stripping disc 33 is provided for leading off the heavier phase HP out of the drum 3. The stripping disc shaft or central outflow duct 34 here passes through the second axial boundary wall (see Figure 1 and Figure 2 ]).

[0098] Here, according to one possible, but not mandatory, solution, the drum 3 has at least two cylindrical sections 18, 19 of different diameters. Adjoining these cylindrical sections, one or more conical transition regions can be formed on the drum 3. The drum 3 can also be formed internally, in its middle axial region, generally monotonically or biconically (not described here).

[0099] As described, the drum 3 can have a lower cylindrical section 20 of smaller diameter, on which / in which the rotor unit 5b of the lower magnetic bearing arrangement is also formed, which transitions into a conical section 20a, which here then has a cylindrical section 19 of larger diameter, which then again has a conical section 18a and then an upper cylindrical section 18 of smaller diameter, on which the rotor unit 4b of the upper magnetic bearing arrangement 4 is formed.

[0100] In terms of the leading off of the lighter phase, Figure 1 and 2 the separator insert differs.

[0101] According to Figure 1 , openings, which can be provided on the drum 3 in a circumferential distribution, so that a plurality of openings can accordingly be provided on the drum 3, serve as radial or tangential outlets 21 for the lighter phase LP out of the drum 3. The openings in the housing periphery then implement the outlet, or serve as outflow 10 for the lighter product phase LP formed in the centrifugal separation, which has been led off from the drum 3. Figure 1

[0102] ​The outlets 21 on the radius ro of the rotating drum 3 are in particular configured as "nozzle-like" openings in the outer periphery of the rotating drum 3. They are furthermore configured as so-called "free" outflow sections from the rotating drum 3. Here, the outlets 21 serve for the discharge of the lighter phase LP. Here, the outlets can be configured in such a way that the light phase is discharged radially, but alternatively also shaped in such a way that the light phase is discharged tangentially against the direction of rotation of the rotating drum and thus contributes to driving the rotor and to reducing the driving energy. The phases discharged from the rotating drum 3 are collected in the housing 1 in a collection annular chamber 23 above the housing 1. This collection annular chamber is configured in such a way that the phases collected in the collection annular chamber are guided towards the outflow section 10 of the collection annular chamber 23. This can be achieved in such a way that the outflow section 10 is on the respective deepest point of the collection annular chamber 23. The collection annular chamber 23 opens radially inwards towards the rotating drum 3 and is configured spaced apart in such a way that the liquid ejected from the respective outlet 21 during centrifugal separation is essentially only ejected into the associated collection annular chamber 23 on the same axial level.

[0103] Optionally, below the collection annular chamber 23, a chamber 25 can be configured which is not used for the discharge of one phase. This chamber 25 can optionally have a (not described here) leakage outflow section. The leakage can flow freely, preferably into a container. However, when the chamber 25 has a negative pressure interface for connecting a negative pressure generating device, the leakage can also be sucked by negative pressure.

[0104] The first collection annular chamber 23 and the chamber 25 can be separated from one another by a first wall 26 which is here conical, which extends conically inwards and upwards from the outer periphery of the housing 1 and ends radially inwards in front of the rotating drum 3 spaced apart from the rotating drum 3.

[0105] The product phase LP is preferably discharged from the housing 1 through the outflow section 10 at the deepest point of the collection annular chamber. On the outside on the housing 1 in the area of the outflow section 10, connections can be provided in order to be able to simply connect lines, hoses and the like.

[0106] These connections can in turn be configured together directly on the housing 1 or adhesively mounted on the housing. The connections are preferably also made of plastic. The housing 1 can consist of a plurality of plastic parts which are connected to one another sealingly, for example in an adhesive or welded manner.

[0107] As an outlet (here: second outlet) for the heavier phase HP from the rotating drum (through the housing 1), a Figure 1 and 2A first stripping disc 33 is provided, which extends substantially radially and transitions into an axially extending outflow duct 34 as a stripping disc shaft, which penetrates the lower axial boundary wall 7 of the housing 1. The first stripping disc 33 has an outer diameter ru. It applies here that ru > ro. The entry opening 33a of the first stripping disc 33 is thus at a larger diameter or radius than the outlet 21 for the light phase LP at the radius ro. It is thus possible to conduct the heavier phase HP from the rotating drum 3 through the first stripping disc 33 compared to the lighter phase LP. The first stripping disc 33 is stationary in the operation of the separator and is inserted with its outer edge into the heavier phase HP rotating in the drum 3.

[0108] The phase HP is conducted inwards through the passage in the first stripping disc 33. The first stripping disc 33 thus serves to conduct the phase HP in the manner of a radial pump.

[0109] The first stripping disc 33 can be provided in a simple and compact manner below the distributor 13 and below the disc pack in the drum 3. The radius ru corresponds to the insertion depth of the first stripping disc 33.

[0110] The outflow duct 34 emerges from the drum downwards from the housing 1 with one end and penetrates the lower axial boundary wall 7, but here the outflow duct does not touch the drum 3. The outflow duct 34 can be formed in one piece with the housing 1 or is sealingly inserted into the housing. A hose or the like can be connected to the outflow duct as a conducting line 35.

[0111] The outflow duct penetrates the housing 1 and the lower magnetic bearing 5 concentrically to the rotational axis of the rotor 2 and then extends further axially within the housing 1 up to the entry into the first stripping disc 33.

[0112] It can be provided that a controllable, in particular electrically controllable, regulating valve 36 is installed in the outflow for the heavy phase HP, in particular in the conducting line 35 for the heavier phase HP. The volume flow of the heavy phase HP in the conducting line 35 can be throttled by the regulating valve 36 and the insertion depth of the associated stripping disc can be increased. A control device 37 is preferably provided. The regulating valve 36 is preferably connected wirelessly or wired to the control device 37.

[0113] The control device 37 can also be designed and provided for controlling the magnetic bearings 4, 5 and for driving.

[0114] In a manner known per se, the light phase LP is also output through a stripping disc. Figure 2

[0115] For this purpose, a second stripping disc 22 is provided here in the upper region of the drum 3, the entry opening 22a of which can again be at a smaller radius ro compared to the radius ru of the inlet of the lower first stripping disc 33 for the heavier phase. ​

[0116] The shaft of the second stripping disc 22 can surround the inflow pipe in the shape of an annular channel like an outer outflow pipe 24 and be sealingly connected with the housing 1 or be formed in one piece with the housing. The outflow pipes 24, 34 of the two stripping discs thus pass through Figure 2 They are led out of the drum 3 on two ends thereof opposite to each other. Furthermore, they are led out of the housing 1 on two ends thereof opposite to each other. They can be sealingly fitted into the housing 1. However, they can also be made in one piece with the housing from plastic. The inflow pipe 12 can be connected with the stripping disc shaft on the upper end thereof. A radial or tangential connection piece 24a is led out of the stripping disc shaft. On the connection piece a discharge line 40 for the light phase can be connected, which can lead, for example, into a bag or a tank or the like. Correspondingly, the ends of the inflow pipe 12 and the outflow pipe 34 as well as the connection pieces can be formed for the connection of hoses or the like Figure 2 and Figure 1 ).

[0117] It can be provided that in the discharge line 40 for the light phase LP a controllable, in particular electrically controllable, regulating valve 39 is also fitted.

[0118] By means of the regulating valve 39 the volume flow of the light phase LP can be changed, in particular throttled more or less, and thus the insertion depth of the second stripping disc 22. The regulating valve 39 is also connected wirelessly or wired with the control device 37, so that it can be actuated by the control device 37.

[0119] The respective stripping disc involves a cylindrical and essentially radially oriented disc provided with several, for example 1 to 6, channels, which in operation is stationary and has channels so that a centrifugal pump is formed. The respective stripping disc is inserted with its outer edge into the phase LP or HP rotating in the separator. By means of the channels in the stripping disc the respective phase LP, HP is guided inwards and the rotational speed of the respective phase LP, HP is converted into pressure. The respective stripping disc takes the place of an outflow pump for the respective phase LP, HP. The respective stripping disc thus works as a centrifugal pump. They can be made from plastic.

[0120] In theory a third stripping disc can also be provided, which can be used to discharge a further phase.

[0121] The operation of the separator will be explained in the following Figure 1 and then in the following Figure 2 briefly.

[0122] First, the corresponding separator is provided with its multiple or reusable components. Belonging to these components are the stator units 4a, 5a of the magnetic bearing device and the housing I. Also belonging to these components is the control device 37. Then the separator insert II is provided and assembled on the housing I. For this it is only necessary to move the stator units 4a and 5a away from each other. Then the separator insert is mounted form-locked and the stator units are moved towards each other. The housing is thus reliably held against twisting. Now perhaps also the hoses are connected to the connections, which lead into tanks or bags. Figure 1 and 2 The corresponding separator insert of the application thus preferably at least also has hoses and connections, which can be connected to further lines and containers, such as bags, tanks, pumps and the like, which are not described here.

[0123] After the connection of the lines and hoses and the like, the suspension is then introduced into the rotating bowl (inflow 8) and centrifuged there into the light phase LP and the heavy phase HP.

[0124] The heavier phase HP of greater density flows radially outwards in the bowl 3 in the separation chamber. There, the phase HP leaves the bowl on the radius ru through the passage of the stationary first stripping disc 33.

[0125] The lighter phase LP flows radially inwards in the bowl 3 in the separation chamber and rises upwards through the passage 38 on the shaft of the distributor. There, the phase LP leaves the bowl on the radius ro. Figure 1 and 2 Correspondingly on the radius ro.

[0126] By one or more regulating valves 36, 39, the separation process can be influenced here in a simple manner. This leads to an optimization of the separation process.

[0127] As a main application of the separator according to the application, the separation of cells in the pharmaceutical industry is specified. The range of working capacities considers the treatment of fermentation liquids in the order of magnitude of 100 liters ~ 4000 liters and for laboratory applications.

[0128] Other industrial fields can also be considered, in which the separator is used: chemistry, pharmacy, dairy technology, renewable raw materials, oil and gas, beverage technology, mineral oil and the like.

[0129] The described separator realizes a manufacture of a separator insert, in which preferably all components which come into contact with the product can be made of plastic or other non-magnetic materials, which can be recycled after one-time use or can be delivered to a recycling process. Thus the cleaning after use is cancelled. The separator and its operation can thus be realized inexpensively.

[0130] Figure 8Shown in the second embodiment Figures 1-7 A variation of the separator insert II, wherein the same features are provided with similar reference numerals. This second embodiment is characterized in that the form-locking device, such as pin 41, on the receiving part I-5 and the corresponding form-locking device provided on the frame I are provided only on one side between the frame I and the separator insert II, thus achieving axial locking and torsional resistance of the separator insert II relative to the frame I. This, in particular, reduces structural complexity.

[0131] List of reference numerals

[0132] Rack I

[0133] Control Panel I-1

[0134] Car I-2

[0135] Roller I-3

[0136] Admission Department I-4, I-5

[0137] Separator Insert II

[0138] Casing 1

[0139] Rotor 2

[0140] Drum 3

[0141] Magnetic support devices 4 and 5

[0142] Stator units 4a and 5a

[0143] Rotor units 4b and 5b

[0144] Axial boundary walls 6, 7

[0145] Inflow section 8

[0146] Outflow section 10

[0147] Inlet tube 12

[0148] Opening 12a

[0149] Distributor 13

[0150] Distributor shaft 14

[0151] Distributor pin 15

[0152] Separate disc 17

[0153] Columnar sections 18, 19, and 20

[0154] Conical sections 18a and 20a

[0155] Export 21

[0156] Second stripping disc 22

[0157] inlet opening 22a

[0158] trap annular chamber 23

[0159] outflow pipe 24

[0160] connection pipe 24a

[0161] chamber 25

[0162] first wall 26

[0163] first stripping disc 33

[0164] inlet opening 33a

[0165] outflow pipe 34

[0166] outlet line 35

[0167] regulating valve 36

[0168] control device 37

[0169] passage 38

[0170] regulating valve 39

[0171] outlet line 40

[0172] pin 41

[0173] recess 42

[0174] through hole 43

[0175] hoses 44, 45

[0176] axis of rotation D

[0177] suspension S

[0178] phases LP, HP

[0179] radii ro, ru

Claims

1. A separator comprising a machine frame (I) and a separator insert (II) which is arranged replaceably on the machine frame, a) the separator insert being designed for separating a flowable suspension (S) into at least two flowable phases (LP, HP) of different densities in a centrifugal field and the separator insert constituting a preassembled, replaceable unit in a stator unit for mounting on the machine frame of the separator and having at least: i. a housing (1) which is stationary in operation and which is designed as a container which is closed apart from one or more openings; ii. a rotor (2) with a drum (3) which is arranged within the housing (1) and which is rotatable about an axis of rotation (D), the drum having one or more openings; iii. a separating device which is arranged in the drum (3); iv. at least two rotor units (4b, 5b) for magnetic bearing devices (4, 5) at two axially spaced-apart locations of the rotor (2) with the drum, by means of which the rotor (2) with the drum (3) can be held in suspension within the housing in operation, can be supported in a rotatable manner and can be set in rotation; b) furthermore, receiving portions (I-4, I-5) are constituted on the machine frame (I) which are spaced apart from one another, the receiving portions having stator units (4a, 5a) of the magnetic bearing devices (4, 5), the housing (1) of the separator insert being held anti-rotationally between the receiving portions, so that the rotor (2) with the drum is held rotatable; c) the relative positions of the receiving portions (I-4, I-5) with the stator units (4a, 5a) of the magnetic bearing devices (4, 5) can be changed, so that the separator insert (II) is replaceable; d) the housing (1) and at least one of the receiving portions (I-4, I-5) have corresponding form-locking means in order to hold the housing (1) anti-rotationally on the at least one receiving portion. the housing (1) and the receiving portions (I-4, I-5) have corresponding form-locking means in order to hold the housing (1) anti-rotationally on the receiving portions. the housing (1) and only one of the receiving portions (I-4, I-5) have corresponding form-locking means in order to hold the housing (1) anti-rotationally on the respective receiving portion. the housing (1) and the receiving portions (I-4, I-5) have corresponding pins (41) and recesses (42) as corresponding form-locking means in order to hold the housing (1) anti-rotationally on the receiving portions (I-4, I-5). the relative distance of the two receiving portions (I-4, I-5) from one another is adjustable. one of the two receiving portions is arranged adjustably on the machine frame, while the other receiving portion is constituted fixedly in position on the machine frame. one of the two receiving portions is arranged adjustably on the operating table (I-1) of the machine frame, while the other receiving portion is constituted fixedly in position on the operating table (I-1) of the machine frame. the two receiving portions (I-4, I-5) are arranged adjustably on the machine frame (I). ​ ​ ​ ​ ​ ​ ​ ​ 2. The separator of claim 1, wherein ​ 3. The separator of claim 1, wherein ​ 4. The separator of claim 1, wherein ​ 5. The separator of any one of claims 1 to 4, wherein, ​ 6. The separator of any one of claims 1 to 4, wherein, ​ 7. The separator of any one of claims 1 to 4, wherein, ​ 8. The separator of any one of claims 1 to 4, wherein, ​ 9. The separator of any one of claims 1 to 4, wherein, Two receptacles (I-4, I-5) are adjustably arranged on the operating table (I-1) of the machine frame.

10. The separator of any one of claims 1 to 4, wherein, One or two receptacles are movably arranged on the machine frame.

11. The separator of any one of claims 1 to 4, wherein, One or two receptacles are movably arranged on the operating table (I-1) of the machine frame.

12. The separator of any one of claims 1 to 4, wherein, One or more axially directed hoses (44, 45) on the separator insert (II) are guided through the through-holes (43) of the respective axially assigned receptacle (I-4, I-5).

13. The separator of any one of claims 1 to 4, wherein, The machine frame (I) has a control device (37).

14. A separator insert for separating a flowable suspension (S) in a centrifugal field into at least two flowable phases (LP, HP) of different densities, which forms a preassembled, replaceable unit in a stator unit for mounting to a machine frame of a separator according to any one of claims 1 to 13, and which has at least: i. a housing (1) which is stationary in operation and which is designed as a container of the type, which is designed closed with the exception of one or more openings; ii. a rotor (2) with a rotating drum (3) which is arranged within the housing (1) and which is rotatable about an axis of rotation (D), said rotating drum having one or more openings; iii. a separating device which is arranged in the rotating drum (3); iv. at least two rotor units (4b, 5b) for magnetic bearing devices (4, 5) at two axially spaced locations of the rotor (2) with the rotating drum (3), by means of which the rotor (2) with the rotating drum (3) can be held in suspension, can be rotatably supported and can be set in rotation in operation within the housing (1), said housing (1) having form-fitting means for torsionally holding the housing (1) on a support.

15. The separator insert of claim 14, wherein, The form-fitting means of the housing are for torsionally holding the housing (1) on the machine frame.

16. A method for replacing a first separator insert of a separator according to any one of claims 1 to 13 by a second separator insert, comprising the following steps: a) providing a separator with the first separator insert mounted on the machine frame (I); b) changing the relative position of the receptacles (I-4, I-5) and loosening the form-fitting connection between the machine frame and the first separator insert and removing the first separator insert from the receptacles; c) providing the second separator insert; d) mounting the second separator insert into one of the receptacles such that the corresponding form-fitting means on one end of the housing and on one of the receptacles engage with one another; and e) re-changing the relative position of the receptacles (I-4, I-5) until the corresponding form-fitting means on both ends of the housing (1) and on both receptacles (I-4, I-5) torsionally engage with one another.

17. The method of claim 16, wherein, During mounting of the second separator insert, one or more axially leading hoses (44, 45) on the second separator insert are guided through the through-holes (43) of the respective axially assigned receptacle.

18. Method for operating a separator according to any one of claims 1 to 13, characterized in that Leakage is guided away from the separator during operation of the separator.

19. The method of claim 18, wherein, In the operation of the separator, the leakage is guided from the separator via a separate leakage outflow of the separator insert.

20. Use of a container in a separator according to any one of claims 1 to 13, wherein, The container is replaceably arranged on the leakage outflow of the separator insert.

Images