Set of separator inserts for a separator

Abstract

The invention relates to a set of separator inserts (II, II-a, II-b,...) for a separator having a frame (I) on which one of the separator inserts (II, II-a, II-b,...) of the set of separator inserts (II, II-a, II-b,...) is exchangeably arranged at a time, wherein each of the separator inserts is designed to separate a free-flowing suspension (S) in a centrifugal field into at least two phases (LP, HP) of different densities and forms a pre-assembled exchangeable unit for insertion into the frame (I) of the separator and has at least the following: a rotor (2) which can be rotated about an axis of rotation (D) during operation and has a drum (3) that can be rotated during operation and that has one or more openings; a separating means (6) arranged in the drum (3); an inflow and outflow system having at least one inlet (311, 312) for a free-flowing suspension to be processed and having two or more outlets (313, 314) for discharging the centrifugally separated phases from the drum (3), wherein at least two separator inserts (II, II-a, II-b,...) of the set have different inflow and outflow systems (31), and / or at least two separator inserts (II, II-a, II-b,...) of the set have drums (3) having drum casings with different geometries.

Description

[0001] Set of separator inserts for a separator

[0002] The invention relates to a set of separator inserts for a separator with a frame according to the preamble of claim 1.

[0003] Separators, as defined in this document, are used to separate a free-flowing suspension as the starting material into phases of different densities in a centrifugal field.

[0004] In the field of biotechnology, centrifugal separations of suspensions into phases of different densities are carried out, among other things, in separators with racks and interchangeable single-use separator inserts with a rotating drum, in which usually only one batch of product is processed before the separator inserts are replaced.

[0005] A separator with such an interchangeable separator insert for use as a single-use component is known from WO 2022 / 033954 A1. This document discloses such a concept, with a separator having a frame into which an interchangeable separator insert with a non-rotating housing and a rotatable inner drum can be inserted.

[0006] WO 2015 / 181177 A1 discloses another such concept, with a frame and a rotatable outer drum into which an interchangeable separator insert with an inner drum can be arranged.

[0007] In order to use such a separator with a rotatable outer drum, into which an interchangeable separator insert with an inner drum rotatable with the outer drum can be arranged, for different separation tasks with different boundary conditions, EP 3 978 136 A1 proposes to create different separator inserts which have the same external shape (external geometry) so that they can be inserted into the rotatable outer drum, but which have different equivalent clarification areas.

[0008] Starting from the prior art of this type, the object of the invention is to further develop the set of separator inserts in such a way that it allows for even more individual adaptation to the boundary conditions of specific separation tasks. The invention achieves this object through the subject matter of claim 1.

[0009] A set of separator inserts is created for a separator with a frame, on which one of the separator inserts of the set of separator inserts is interchangeably arranged, wherein each of the separator inserts is designed for separating a free-flowing suspension in a centrifugal field into at least two phases of different densities and forms a pre-assembled, interchangeable unit for insertion into the frame of the separator and comprises at least the following: a rotor rotatable about an axis of rotation during operation with a drum rotatable during operation which has two or more openings, a separating agent arranged in the drum, and an inlet and outlet system with at least one inlet for a free-flowing suspension to be processed and with one or more outlets for draining the at least one centrifugally separated phase from the drum.This set is characterized in that at least two separator inserts of the set have a different inlet and outlet system, and / or that at least two separator inserts of the set have drums with a drum shell or respective drum shells with different geometries.

[0010] By using such different separator inserts, the separator can be easily used for a wide variety of products and process applications by selecting the most suitable separator insert from the set, while the frame into which the separator insert is placed, and which usually contains all or part of the drive for the rotating drum, remains unchanged.

[0011] According to claim 1, a set of separator inserts is thus created that allows for even more individualized adaptation to the boundary conditions of specific separation tasks. In this respect, the prior art may have placed too much emphasis on the aspect of keeping the external geometry of the separator insert as unchanged as possible. It is not only possible to modify the properties of the separator insert with regard to the centrifugal separation to be carried out by changing the equivalent clarification area, but also by changing other design details. According to one variant, changing the internal and / or external geometry of the separator insert can also be advantageous and creates further degrees of freedom in shaping the properties of the drum insert.Especially for laboratory operations, it is a great advantage that the separator according to claim 1 can be used for a particularly wide variety of process engineering applications and can be easily adapted to a wide range of product properties. In particular, the set meets various requirements that relate essentially to the inlet and outlet system of the drum and to the drum itself.

[0012] “In operation” means during centrifugal processing, when the rotor is rotating.

[0013] Advantageous designs and further training options can be found in the sub-requirements.

[0014] Initially, it can be provided that the various separator inserts of the set have uniform interfaces to the frame, so that they are each held in the frame and can be rotated by a drive system of the frame.

[0015] Furthermore, it is advantageous if one, several or all of the following elements of the various separator inserts of the set consist of one or more plastics, plastic composites and / or bio-based and / or recycled plastics: a drum bottom, a drum top, the clarifying agent.

[0016] If at least two separator inserts of the set have differently designed inlet and outlet systems, it becomes easy to adapt to different separation tasks.

[0017] In a preferred embodiment, at least one separator insert of the set may have an inlet and outlet system that is hermetically sealed from the environment of the separator insert. This is advantageous, for example, if the suspension to be processed should not come into contact with oxygen.

[0018] As an optional, advantageous variant, it may also be beneficial that at least one separator insert in the set has a partially hermetically sealed inlet and outlet system. This can be useful, for example, if only a specific product phase should not come into contact with oxygen, e.g., because it would otherwise foam excessively.

[0019] It can then be advantageously provided, according to an optional variant, that the inlet and outlet system of at least one separator insert of the set comprises one or more centripetal pump(s) or grippers.

[0020] However, according to an optional advantageous variant, it may also be advantageously provided that at least one separator insert of the set has a non-hermetically designed inlet and outlet system, since such a design is not necessary for the respective separation task.

[0021] It may then be advantageous for the inlet and outlet system of at least one separator insert of the set to include one or more nozzle-like outlets.

[0022] According to a further preferred optional embodiment, it can be provided that at least two separator inserts of the set have drums with a drum top and / or a drum bottom, the drum shell of which is designed in a single or double conical shape on the inside with respect to one or more geometric features.

[0023] It may be provided that at least two separator inserts of the set have drums with the drum top and / or the drum bottom that have different internal conicity angles to the axis of rotation.

[0024] In this way, a separator is created which includes a set of disposable modules - the separator inserts - with various disposable components, whereas at least the frame and parts of the bearing and drive device can be reusable.

[0025] The invention enables the production of a separator in which various disposable separator inserts can be used, preferably designed such that all product-contacting components are made of plastic and / or bio-based plastic that can be disposed of after a single use. Cleaning after use is therefore unnecessary. The machine and its operation can thus become significantly cheaper and also more sustainable with regard to its materials and their disposal.

[0026] The frames and drive systems of the frames for the rotatable drums can be designed in a wide variety of ways. The invention is therefore not limited to a specific design of the frames and drive systems. However, a set of separator inserts is provided for each specific design of the frames and drive systems.

[0027] In one possible design of the frame, it is simple and safe to have spaced-apart mountings for the bearing devices, between which the separator insert can be inserted in a rotationally fixed manner. Alternatively, the mounting can be designed so that the separator insert is held and supported on one side only by a single bearing.

[0028] It may also be provided that the separator insert can be attached to the frame in a form-fit and force-fit manner, preventing rotation.

[0029] In a particularly simple version, the receptacles and the housing can have corresponding pins and recesses as positive locking elements to hold the housing rotationally fixed to the receptacles. This is especially simple if the receptacles and pins extend axially.

[0030] It can further be provided that the position of the mounts, particularly on the console, is adjustable to allow for changing the separator insert. For this purpose, the relative distance between the mounts can be adjustable, or one or both mounts can be designed to be hinged, pivotable, rotatable, or slidable in order to position the separator insert on or between the mount(s). Preferably, according to one embodiment, the relative vertical position can be changed by adjusting the vertical relative distance between the mounts and the stator units of the bearing devices, such that the separator insert is replaceable, allowing the corresponding positive locking means to be engaged and disengaged by this adjustment.

[0031] This makes changing the separator insert after processing a batch quick and easy. The drums of the various separator inserts can be not only simply conical or double conical, but can also have one or more cylindrical sections, either additionally or alternatively. If they are composed of several parts, particularly an upper and a lower part, these parts can preferably be joined together after the installation of internal components and their assembly (e.g., by gluing, welding, or positive locking).

[0032] The drains can have spigots on the outside of the housing, which are sealed to the outer circumference, allowing for easy connection of hoses or similar fittings. The hoses can also be pre-assembled on the spigots, ensuring a complete and, if necessary, sterile seal. The spigots can extend, for example, radially, tangentially, or at an angle to the radial direction.

[0033] The entire separator insert can be supplied as a sealed unit after its manufacture, preventing the ingress of contaminants. For this purpose, the ports on the housing openings can be sealed and detachably closed. Hose sections with openable and closable connectors can be attached to these ports, allowing the separator insert to be connected to other elements of the inlet and outlet system, such as bags, tanks, hoses, or pipes.

[0034] Advantageous embodiments of the invention can be found in the remaining dependent claims.

[0035] The invention is described in more detail below with reference to exemplary embodiments and the drawing, and further advantageous variants and embodiments are also discussed. It should be emphasized that the exemplary embodiments discussed below are not intended to provide an exhaustive description of the invention, but that variants and equivalents not shown are also feasible and fall within the scope of the claims. The drawing shows:

[0036] Figure 1: A perspective view of a separator with a changeable

[0037] Separator insert including inlet and outlet system; Figures 2 to 5: sectional views (Figs. 2 and 4 to 5) and a perspective view (Fig. 3) of various separator inserts which together form a set of such separator inserts and are suitable for a separator of the type shown in Fig. 1.

[0038] Figure 1 shows a separator with a reusable frame I and with an exemplary first interchangeable separator insert II for centrifugal separation of a product - a free-flowing suspension S - into phases of different densities, which are preferably also free-flowing phases Fl, Fh.

[0039] The separator insert II is a separator insert II that is preferably designed as a prefabricated unit. In particular, the separator insert II is designed as a disposable separator insert that can be replaced or exchanged as a whole and is designed as a pre-assembled unit, and which is made entirely or predominantly of one or more plastics, plastic composites and / or bio-based plastics.

[0040] According to Figures 2 to 5, a set of such separator inserts II-a, II-b, ... is provided. This set is to be understood as an exemplary set. The set comprises at least two differently constructed separator inserts, e.g., separator inserts II-a and II-b. However, it can also comprise two other differently constructed separator inserts or any other number of separator inserts II. The separator inserts of a set must each be insertable into the frame I. The frame I and the separator inserts must therefore have corresponding interfaces at which they can be assembled to form a separator. In addition, a drive must be provided that allows a rotor 2 of the separator insert II to rotate during operation. As a rule, the entire drive or at least a drive component is formed on the frame I.

[0041] The frame I and separator insert II of Fig. 1, as well as the separator inserts II, II-a, II-b, etc., of the subsequent figures, are to be understood as exemplary, particularly with regard to the drive and the interfaces. The design of separator insert II could also vary further. In particular, a housing I for separator insert II is optional (which will be described in more detail below).

[0042] Reference is made, by way of example, to WO 2022 / 033954 A1. This document discloses a concept with a separator comprising a frame I into which an interchangeable separator insert II with a non-rotating housing and a rotating inner drum can be inserted. Such a concept is also implemented in the accompanying figures.

[0043] Alternatively, reference is made to WO 2015 / 181177 A1. Here, a rotatable outer drum is attached to the frame, into which an interchangeable separator insert with an inner drum can be inserted. A set of separator inserts according to the invention could also be used in such a setup.

[0044] Separator insert II-A (which does not include elements 4a and 5a) is shown separately as an example in Figure 2. It can be disposed of after processing a batch of product and replaced with a new separator insert II, II-A, II-B, ...

[0045] According to Figures 1 and 2, separator inserts II and 11-a each have a housing 1 and a rotor 2 inserted into the housing 1, which is rotatable relative to the housing 1 during operation. The rotor 2 has a drum 3 with a drum shell. It also has an axis of rotation D. This can be oriented vertically, which corresponds to the design of the frame I. However, it can also be oriented differently in space if the frame is designed accordingly.

[0046] This setup is exemplary. It is also conceivable that the separator insert II does not have a housing 1 surrounding the drum 3, but for example only a rotor 2 with the drum 3 and an inlet and outlet system.

[0047] The rotor 2 is rotatable by a drive system. According to the embodiment shown in Fig. 1 (see also Fig. 2), it is rotatably mounted at two locations spaced axially apart from each other in the direction of the axis of rotation, each with its own drive and magnetic bearing assembly 4, 5. Preferably, the rotor 2, and also the drum 3, is rotatably mounted at both axial ends. The separator insert II comprises rotor units 4b, 5b of the magnetic bearing assemblies 4, 5. Stator units 4a, 5a of the magnetic bearing assemblies 4, 5 are arranged on the frame 1-1. Separator inserts II configurations are also conceivable in which only a single drive and magnetic bearing assembly is provided (not shown). The drive and magnetic bearing assemblies 4, 5 preferably act radially and axially and hold the rotatably mounted rotor 2 suspended within the housing 1 at a distance from it.

[0048] Such a separator with an easily replaceable separator insert II can be useful and advantageous in the processing of 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.

[0049] The frame I has a console 1-1. This console may—but need not—be mounted on a carriage I-2 with rollers I-3. Receptacles I-4 and I-5 may be formed on the console 1-1, which serve to receive and hold the separator insert II, even during operation. Preferably, a first axial end of the separator insert II projects from below into or towards the upper receptacle I-4, and a lower end of the separator insert II projects from above into or towards the other receptacle I-5, whereby the separator insert II is held against rotation on the console 1-1 and thus on the frame I.

[0050] One or both of the mountings I-4 and / or I-5 can be arranged laterally on the frame I, in particular on the console 1-1. In one variant, it can be further provided that, for example, the lower mounting I-5 is fixed to the console I-1. It is then advantageous for the upper mounting I-4 to be height-adjustable on the console 1-1.

[0051] In this case, it is advantageous if the console 1-1 has such a vertical extension / length that the separator insert is held in a fixed position in the first position of the height-adjustable mount I-4 by both mounts I-4, I-5 and is interchangeable in the other upper position of the mount I-4.

[0052] It is advantageously designed so that the mounts I-4 and I-5 with the stator units 4a, 5a on frame I can be moved axially apart and then back together again in order to change the separator insert II, i.e., to remove the old separator insert II from frame I and replace it with a new one. This can be achieved, for example, with a rail on the console and a sliding carriage on the height-adjustable mount that can be locked in a sliding position (not shown in detail).

[0053] In the respective mounts I-4 and I-5, stator units 5a of two drive and magnetic bearing devices 5 can be arranged. The control and power electronics for this can be arranged in or on the frame I, e.g. in, on or above the console 1-1.

[0054] Corresponding positive locking elements can be provided 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 insert the separator insert II into the stator units 5a in a rotationally fixed manner. The upper and lower stator units can each have axes aligned with each other.

[0055] It is therefore provided that the relative distance between the receptacles I-4 and I-5 and the stator units of the bearing assemblies 4, 5 is adjustable to allow for the exchange of the separator insert II. The set of separator inserts II, II-a, II-b, ... for the frame I of Fig. 1 is provided with an interface so that the separator inserts II can be inserted into the receptacles and are provided that they have rotor units 4b, 5b which can interact with the stator units 4a, 5a to keep the rotor 2 suspended and rotate it.

[0056] The drum 3 of a rotor 2 can optionally be installed in a non-rotating housing 1, which can be part of the interchangeable separator insert 11-12. In this case, the rotor units 4b, 5b can be provided in the housing 1 to create, together with the corresponding stator units 4a, 5a, a rotatable, driven rotor 2, which is held suspended in the housing 1 during operation in a known manner (see also WO 2022 / 033954 A1, which explains this "suspension rotation" in more detail).

[0057] When changing the separator insert – e.g., according to type II-A – either an identical separator insert II-A can be installed in the frame I, or a different separator insert II-B, II-C, ... can be installed in the frame I, which has a different design than separator insert II-A but the same interface to the frame I. A separating agent 6 designed as a plate pack can be arranged in the drum 3.

[0058] The drum 3 also has an inlet and outlet system. This system comprises at least one inlet 311, 312 for a suspension S to be supplied for processing in the centrifugal field and at least one outlet 313 or several outlets 313, 314 for at least one or more flowable phases FL, Fh to be discharged from the drum 3 and the separator insert. These outlets 313, 314 can terminate directly from the drum 3 – e.g., via mechanical seals (radially or axially acting) – or via the optionally interposed non-rotating housing 1 in nozzles 10, onto which corresponding pipe or hose lines 11 can be attached, which may be part of the replaceable separator insert II.

[0059] It is particularly advantageous if some separator inserts II, ll-a, ll-b, ... of the set differ with regard to the design of the inlet and outlet systems of the drum 3.

[0060] This is clearly illustrated by a comparison of Figures 1-5, in which the separator inserts II, ll-a, ll-b, ... all have differently designed inlet and outlet systems.

[0061] Separator inserts ll-a of a first type - as shown in Fig. 2 - have a drum 3 with an inlet and outlet system that includes a single stationary inlet pipe 311 for the suspension S to be supplied and two free nozzle-like outlet openings located on different radii as the outlets 313 and 314, from which the two different liquid phases Fh and Fl can flow out of the drum 3.

[0062] However, with a different separator insert in the set, the outflows 313 and 314 could also lead axially upwards out of drum 3 (not shown). Furthermore, with yet another different separator insert in the set, the inflow could only occur from below (not shown).

[0063] Furthermore, in a separator insert 11-b of another design according to Fig. 3, it is provided that a further inlet 312 is provided. The separator inserts of the second design can therefore have two inlets 311, 312, for example to introduce the suspension into the drum 3 on the one hand and to recirculate a phase or a part thereof into the drum 3 after centrifugal separation on the other.

[0064] By designing the separator inserts ll-a and ll-b without grippers, the phases are discharged from the drum 3 particularly gently and without shearing, which is advantageous in various process engineering applications.

[0065] A suitable separator insert ll-a (Fig. 2) can be used when the suspension to be processed is, for example, a liquid mixture consisting of a liquid light phase Fl and a liquid heavy phase Fh, which are to be separated from each other. The two phases are separated from each other in the centrifugal field and discharged from the drum via free outlets 313, 314. By avoiding a gripper, the phases are discharged from the drum particularly gently and without shearing, which is advantageous in some process engineering applications.

[0066] If, however, the nature of the suspension necessitates the discharge of one or both phases from the drum under pressure, this can be achieved, for example, using one or two grippers 315, 316 as a discharge point (based on the operating principle of a centripetal pump) for each phase to be discharged. This has been implemented, for example, in separator inserts II-C (Fig. 4) and II-D (Fig. 5) of the set of separator inserts. A process-related advantage here is that the one or both separated phases are forced into the downstream system without additional pumps. One of the two phases to be discharged can also be discharged without grippers, if necessary.

[0067] In this way, one or two grippers 315, 316 can be used to implement infeed and outfeed systems and thus also separator inserts II for the following separation tasks:

[0068] - A separator insert II with a drum 3 designed as a clarification drum and a grab in the outlet. Such a separator insert can be used if the product to be processed is, for example, a suspension S, consisting of a light liquid phase Fl and a heavier – possibly still somewhat flowable – solid phase Fh, which is to be separated. If it is necessary to discharge one or both phases from the drum under pressure, this can be achieved, for example, with the help of a grab (operating principle of a centripetal pump). A process-related advantage here is that the one or both separated phases are forced into the downstream system without additional pumps.

[0069] - A separator insert II-C with a drum 3 designed as a clarification drum (for clarifying a suspension of solids) with grippers in the outlet and with a completely hermetic inlet and / or outlet (see Fig. 4). If it is technically necessary to isolate the product being processed from the environment (oxygen) during clarification, a hermetically designed inlet and outlet system is suitable.

[0070] - A separator insert II-C with a drum 3 designed as a separation drum (separation of a suspension into two flowable phases) with grippers in the outlet and with a completely hermetic inlet and / or outlet (not shown). If it is technically necessary to isolate the product being processed from the environment (oxygen) during clarification, a hermetically designed inlet and outlet system is recommended.

[0071] If the composition of the starting material changes in process engineering applications, it may be necessary to change the diameter of the gripper(s) used. In the prior art, the gripper(s) were removed and replaced with suitable grippers of different diameters. In the embodiment according to the invention, the complete separator insert II (generally for single-use applications) is, if necessary, replaced with a different separator insert II with a particularly suitable gripper diameter.

[0072] In addition to or as an alternative to the inlet and outlet system of the drum, it may also be advantageous to supplement the set of separator inserts II with separator inserts that have geometrically differently designed drums 3.

[0073] The set of separator inserts II can include those with drums 3 and drum shells with different drum diameters (see, for example, Figs. 4 and 5). If process requirements necessitate that the drum 3 has a large solids collection space, while maintaining the same disc diameter, it may be advantageous to select a separator insert with a larger drum diameter D1 (Fig. 5). The frame I is then simply designed from the outset with the drive system (here 4, 5) to accommodate separator inserts with different drum diameters.

[0074] The drums 3 can be assembled from a drum upper part 3b and a drum lower part 3a. These parts can then each be designed to be conical, either entirely or in sections.

[0075] The set of separator inserts ll-c can then include those with drums 3 at different angles a to the axis of rotation D (see Fig. 4) of the conical area of ​​the drum upper part 3a. This offers several advantages, as the suspensions can slip off differently.

[0076] Then the set of separator inserts ll-c can include those with drums 3 with different angles ß to the axis of rotation D of the conical area of ​​the drum base 3b, since the suspensions can slip off differently here.

[0077] Optionally, the set of separator inserts II can include those with drums 3 with a bulbous drum top 3a and / or drum bottom 3b (see, for example, Fig. 5).

[0078] A double-conical inner contour of a centrifuge drum ensures that the separated solid particles slide out of the drum at the largest diameter (where the discharge openings are located) during emptying. Since the centrifugal force on the solid increases with increasing drum diameter, the sliding angle of the inner contour to the axis of rotation can decrease without impeding the sliding process. This can result in a bulbous or bell-shaped contour of both the upper and lower parts of the drum. This contour, for example, results in a larger solids collection chamber.Such a bell-shaped contour of the drum top can also be transferred to the shape of the separating plates of the separating agent (not shown), since there, too, the centrifugal force on the solid increases with increasing drum diameter, so that the sliding angle of the plate contour to the axis of rotation can become smaller without impeding the sliding. The main application of the separator according to the invention is cell separation in the pharmaceutical industry. The performance range is intended for processing broths from fermenters in the range of 100 l to 4000 l as well as for laboratory applications.

[0079] Other industrial sectors where separators are used are also conceivable: chemicals, pharmaceuticals, dairy technology, renewable resources, oil and gas, beverage technology, petroleum, etc. The separators presented enable the production and use of a set of differently designed separator inserts II, II-a, II-b, ..., in which preferably all product-contacting components can be made of one or more plastics, plastic composites, and / or bio-based plastics. The separator inserts II, II-a, II-b, ... can be disposed of or recycled after a single use. Cleaning after use is therefore unnecessary. The separator and its operation can thus be implemented cost-effectively.

[0080] Reference sign

[0081] frame

[0082] console

[0083] Carriage I-2 Rollers I-3 Mounts I-4, I-5 Separator insert II, ll-a, ll-b, ....

[0084] Housing 1

[0085] Stocking 10

[0086] Hoses 11

[0087] rotor

[0088] drum

[0089] Drum base 3a

[0090] Drum top 3b

[0091] Inlet and outlet system 31

[0092] Inlet 311, 312

[0093] Procedures 313, 314

[0094] Gripper 315, 316

[0095] Magnetic storage devices 4, 5

[0096] Stator units 4a, 5a

[0097] Rotor unit 4b, 5b

[0098] Release agent 6

[0099] axis of rotation D

[0100] Suspension S

[0101] Phases Fh, Fl

[0102] angle a, ß

[0103] Drum diameter D1

Claims

Claims 1. Set of separator inserts (II, ll-a, ll-b, ... ) for a separator with a frame (I) on which one of the separator inserts (II, ll-a, ll-b, ... ) of the set of separator inserts (II, ll-a, ll-b, ... ) is interchangeably arranged, a) wherein each of the separator inserts is designed for separating a free-flowing suspension (S) in a centrifugal field into at least two phases (LP, HP) of different densities and forms a pre-assembled, interchangeable unit for insertion into the frame (I) of the separator and comprises at least the following: i. a rotor (2) rotatable about an axis of rotation (D) during operation with a drum (3) rotatable during operation, which has two or more openings, ii. a separating agent (6) arranged in the drum (3), iii.a feed and discharge system with at least one feed (311, 312) for a flowable suspension to be processed and with one or more discharges (313, 314) for the discharge of at least one of the centrifugally separated phases from the drum (3), characterized in that iv. at least two separator inserts (II, ll-a, ll-b, ... ) of the set have different feed and discharge systems (31 ), and / or v. at least two separator inserts (II, ll-a, ll-b, ... ) of the set have drums (3) with a drum shell of different geometry.

2. Set according to claim 1, characterized in that the various separator inserts of the set have uniform interfaces to the frame, so that they are each held in the frame and so that they can be rotatably driven by a drive system of the frame.

3. Set according to claim 2, characterized in that one, several or all of the following elements of the separator inserts (II, ll-a, ll-b, ... ) of the set consist of one or more plastics, plastic composites and / or bio-based plastics: a drum lower part, a drum upper part, the clarifying agent.

4. Set according to claim 2 or 3, characterized in that at least two separator inserts (II, ll-a, ll-b, ... ) of the set have differently designed inlet and outlet systems (31 ).

5. Set according to claim 4, characterized in that at least one separator insert (II, ll-a, ll-b, ... ) of the set has a hermetically designed inlet and outlet system.

6. Set according to claim 4, characterized in that at least one separator insert (II, ll-a, ll-b, ... ) of the set has a partially hermetically designed inlet and outlet system.

7. Set according to one of the preceding claims, characterized in that at least one separator insert (II, ll-a, ll-b, ... ) of the set has a non-hermetically designed inlet and outlet system.

8. Set according to one of the preceding claims, characterized in that the inlet and outlet system of at least one separator insert (II, ll-a, ll-b, ... ) of the set comprises one or more grippers (314, 315).

9. Set according to one of the preceding claims, characterized in that the inlet and outlet system of at least one separator insert (II, ll-a, ll-b, ... ) of the set comprises one or more nozzle-like outlets.

10. Set according to one of the preceding claims, characterized in that at least two separator inserts (II, ll-a, ll-b, ... ) of the set have drums (3) with a drum upper part (3a) and / or a drum lower part (3b) which are internally designed differently with respect to one or more geometric features.

11. Set according to claim 10, characterized in that at least two separator inserts (II, ll-a, ll-b, ... ) of the set have drums (3) with the drum top (3a) and / or the drum top (3b) having different internal conicity angles (β, a) to the axis of rotation.

12. Set according to claim 10, characterized in that at least one separator insert (II, ll-a, ll-b, ... ) of the set has a drum (3) with a bulbous drum shell.

Images