Separating machine

Abstract

The invention relates to a separating machine having a rotating device located in a drum and a drain system (10) for at least one partial flow of a product separated within the drum, wherein the drain system (10) has an arcuate channel (22) with a channel inlet (21), the channel (22) is at least partly formed within an annular element (20), the at least one channel (22) deflects the at least one partial flow from an outer region of the ring element (20) to at least one axial opening (45), the ring element (20) is mounted so as to be rotatable on and / or against two eccentric discs (30, 40), the eccentric discs (30, 40) are directly or indirectly stationarily connected to a rotatable tube (90) such that the two eccentric discs (30, 40) can be moved uniformly together with the tube (90), and the ring element (20) is connected to a stationary hub element (60) by means of a driver element (50).

Description

[0001] M / FLOT-127-PC

[0002] Flottweg SE WH / KS / eh

[0003] Cutting machine

[0004] Description

[0005] The invention relates to a separation machine with a rotary device located in a drum and a discharge system for at least a partial flow of a product separated within the drum, wherein the discharge system has an arc-shaped channel with a channel inlet, wherein the channel is formed at least partially within a ring element, according to the combination of features of claim 1.

[0006] The separation machines in question are centrifuges that use centrifugal force to separate products. These machines feature a drum rotating around a central axis. The product to be separated is fed into the drum via a feed pipe. Centrifugal force, combined with a rotating device inside the drum (such as a screw or a disc assembly), separates the product. This process separates the product into at least one solid phase and at least one liquid phase. Separation devices are also known that, in addition to separating into a solid phase, separate into two different liquid phases.

[0007] In the prior art, so-called peeling discs are known that discharge a so-called peeled material, for example, via their hub. The advantage of designing such a peeling disc is the ability to adjust the peeling diameter. However, existing peeling disc designs are limited in their adjustment range. Furthermore, such peeling discs have the disadvantage that the flow cross-section inside the peeling disc, i.e., the flow cross-section of the discharged peeled material, changes depending on the set peeling diameter. MEISSNER BOLTE M / FLOT-127-PC

[0008] 2

[0009] In contrast, separators are known to use so-called grippers to remove a liquid phase from the drum interior. Adjustable discharge systems in this case are known in the form of tubes immersed in the liquid phase, the immersion position of which can be adjusted. However, these adjustable tubes have the disadvantage that the inflow angle and / or the inflow cross-section of the resulting discharge system also change. Since both the inflow angle and the inflow cross-section influence the efficiency of the discharge system, its efficiency varies across the entire range of motion of the discharge system.

[0010] Based on the aforementioned prior art, the object of the present invention is to provide a separation machine with a further developed process system which overcomes the aforementioned disadvantages.

[0011] In particular, the invention aims to provide a consistent efficiency of the discharge system across its entire range of motion. It also seeks to increase the adjustment range of the discharge system while maintaining otherwise identical dimensions of the separation machine.

[0012] According to the invention, this problem is solved with regard to a separation machine by the subject matter of claim 1.

[0013] Advantageous and appropriate embodiments of the separation machine according to the invention are specified in the dependent claims.

[0014] The terminology used in the description of this disclosure serves only to describe certain embodiments and is not to be understood as limiting the subject matter. As used in this description and the claims, the singular forms "a", "an", and "the" are to be understood as including the plural forms unless the context clearly indicates otherwise. The reverse is also true, i.e., the plural forms also include the singular forms. It is also understood that the term "and / or", as used herein, refers to all possible combinations of one or more of the associated listed elements MEISSNER BOLTE M / FLOT-127-PC

[0015] 3 refers to and includes these. It is further understood that the terms “includes”, “includes”, “comprises” and / or “comprehensive”, when used in the present description and the claims, specify the presence of the specified features, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components and / or groups thereof.

[0016] In the present description and claims, the terms “includes”, “comprises” and / or “comprising” may also mean “consisting of”, i.e., the presence or addition of one or more other features, steps, operations, elements, components and / or groups is excluded.

[0017] The invention is based on the concept of a separation machine with a rotary device located in a drum and a discharge system for at least one partial flow of a product separated within the drum, wherein the discharge system has an arc-shaped channel with a channel inlet, wherein the channel is formed at least partially within a ring element, wherein the at least one channel directs the at least one partial flow from an outer area of ​​the ring element to at least one axial opening, wherein the ring element is rotatably arranged on and / or adjacent to two eccentric discs and the eccentric discs are directly or indirectly fixedly connected to a rotatable tube in such a way that both eccentric discs together with the tube can be moved uniformly, and wherein the ring element is connected to a stationary hub element by means of a drive element.

[0018] According to the invention, the discharge system is an adjustable discharge system, such that the diameter of the discharge system, in particular the peeling diameter, is adjustable. In other words, due to the design of an adjustable discharge system, the immersion depth of the discharge system can be set to discharge a partial flow of the separated product from the separation machine. The diameter of the discharge system is to be understood in particular as the diameter formed by the radius extending from the axis of rotation of the separation machine to the channel inlet of the discharge system. MEISSNER BOLTE M / FLOT-127-PC

[0019] 4

[0020] The partial stream of a product separated within the drum is preferably a liquid phase of that separated product. This liquid phase can be either a heavy or a light liquid phase.

[0021] In yet another embodiment of the invention, it is possible that the separation machine has a drainage system according to the invention for the removal of the heavy liquid phase and for the removal of the light liquid phase.

[0022] With the help of the drainage system, which is designed to be adjustable, the immersion depth of the drainage system into a liquid phase to be discharged from the separation machine can be achieved by appropriately adjusting the positioning of the channel inlet of an arc-shaped channel.

[0023] With the aid of the channel, at least one partial flow is diverted from an outer area of ​​the ring element to at least one axial opening, starting from the channel inlet.

[0024] The outer area of ​​the ring element could, for example, be the volume of a peeling chamber or a peeling chamber section of a solid-wall screw centrifuge. Furthermore, it is possible that the outer area is a liquid outlet located above a disc pack of a separator.

[0025] The at least one axial opening is preferably an opening formed in an annular area around a tube. The tube is, for example, an inlet tube, in particular an inlet tube of a solid-jacket screw centrifuge, and / or a cover tube, in particular a cover tube of a separator.

[0026] The ring element is preferably designed as a ring element comprising a base ring which, in the circumferential direction, has a curved attachment section over at least 25% of the circumference, in particular at least 40% of the circumference, in particular 30-55% of the circumference, in particular 40-50% of the circumference, which essentially forms the MEISSNER BOLTE M / FLOT-127-PC

[0027] 5 arc-shaped channels are formed. The channel inlet is preferably formed in the attachment section.

[0028] The ring element is preferably rotatably arranged on two eccentric discs such that relative movement of the ring element with respect to the two eccentric discs is permitted. Preferably, the ring element has a larger outer diameter than the eccentric discs, so that a shoulder-like receiving section is formed on each end face of the ring element, in which an outer circumferential section of the respective adjacent eccentric disc rests on and / or against. The receiving sections of the ring element preferably form sliding surfaces for the rotatable mounting of the ring element on the two eccentric discs.

[0029] The two eccentric discs are connected, directly or indirectly, to a rotatable tube in such a way that they can move uniformly with the tube. Uniform movement, as defined in the present invention, means movement that always occurs in the same direction and at the same speed with respect to the three components mentioned. The speed need not necessarily remain constant during the movement, but can change in accordance with all three components during the movement. Any change in speed then occurs simultaneously with respect to all three components.

[0030] It is possible that at least one of the two eccentric discs, in particular a first eccentric disc close to the drum, is formed from at least two sub-elements, in particular from an inner first ring disc element connected to the tube and an outer second ring disc element connected to the first ring disc element, wherein the at least two sub-elements are preferably detachably connected to each other, particularly preferably screwed together.

[0031] Forming an eccentric disc from at least two ring discs is particularly advantageous if all connections between the two eccentric discs and the tube are permanent. Since the ring element is preferably guided axially, assembly of the ring element is possible despite the permanent connections, provided that at least one of the MEISSNER BOLTE M / FLOT-127-PC

[0032] 6

[0033] Eccentric discs are formed from at least two sub-elements, in particular from two ring discs.

[0034] In one embodiment of the invention, it is possible to form an eccentric disc from an inner component, in particular an inner ring disc, which is directly and permanently connected to the tube, and an outer component, in particular an outer ring disc. The outer component, in particular the outer ring disc, can be designed as a retaining ring that engages in a groove of the inner component, in particular the inner ring disc, and secures the ring element against axial displacement.

[0035] If both eccentric discs are located outside the drum of the separating machine, the eccentric disc closest to the drum is the one with the smaller distance to the drum compared to the other eccentric disc. This is particularly the case if the separating machine is a solid-bowl screw centrifuge.

[0036] When the separation machine is designed as a separator, particularly as a clarification or separation separator, the drum is preferably defined as the separation chamber of the separator. If the drum is defined as the separation chamber of the separator, the eccentric disc closest to the drum is the one that has a smaller distance to the separation chamber compared to the other eccentric discs.

[0037] To install the drainage system, an eccentric disc, particularly the one furthest from the drum, can first be mounted on the rotatable pipe. The ring element can then be positioned against this eccentric disc already mounted on the pipe. For this purpose, the ring element can be guided over the first ring disc element, which is connected to the pipe and / or the eccentric disc (preferably the one furthest from the drum). The outer circumference of the first ring disc element is smaller than its inner circumference, allowing the ring element to be easily guided over it.

[0038] Once the ring element rests against the eccentric disc, preferably the one furthest from the drum and preferably formed in one piece, the second ring disc element can be connected to the first ring disc element. For this purpose, see MEISSNER BOLTE M / FLOT-127-PC

[0039] 7 The second ring disc element is guided over the pipe in the direction of the first ring disc element.

[0040] Preferably, the two components, in particular the two ring disc elements, are connected to each other by means of screws. The second ring disc element has a larger outer cross-section or a larger diameter than the first ring disc element.

[0041] The connection of the two ring disc elements is preferably carried out in such a way that the second ring disc element is connected to the first ring disc element in such a way that the second ring disc element is arranged axially without play to the ring element, i.e. with a minimal distance between them.

[0042] Preferably, at least one of the two eccentric discs, in particular a second eccentric disc facing away from the drum, has at least one axial opening, preferably several axial openings. This axial opening(s) serves as such an axial opening(s) through which the partial flow of the separated product from the discharge system flows.

[0043] The flow cross-section formed by the at least one axial opening, preferably the multiple axial openings, is preferably constant regardless of the position of the channel inlet. In other words, the flow cross-section is constant across the range of motion of the drainage system, particularly the ring element. Due to the constant flow cross-section, adjustment of the ring element and the channel inlet located thereon has no influence on the outflow behavior of the partial flow.

[0044] Preferably, at least one of the two eccentric discs, in particular the second eccentric disc facing away from the drum, has radially internal flow-guiding elements, which are preferably formed between the axial openings, wherein the at least one eccentric disc, preferably the second eccentric disc, is connected to the tube by means of the flow-guiding elements. The at least one eccentric disc that is connected to the tube by means of the flow-guiding elements is the at least one eccentric disc that has the radially internal flow-guiding elements. MEISSNER BOLTE M / FLOT-127-PC

[0045] 8

[0046] The flow-guiding elements can be designed as ribs or rib-like structures. It is possible that the flow-guiding elements laterally define the at least one, preferably several, axial opening(s) in the axial direction.

[0047] The axial direction is understood to be the direction along or parallel to the axis of rotation of the drum of the cutting machine.

[0048] Due to the formation of flow-guiding elements, the development of swirl within the discharge system during operation of the separation machine is essentially prevented. With regard to the partial flow of the separated product transported through the discharge system, a substantially axial flow can be achieved within the system, at least until it exits. This results, in particular, in a lower pressure drop within the discharge system due to the absence of swirl, thus enabling a higher throughput of the discharged partial flow.

[0049] If the at least one eccentric disc, preferably a second eccentric disc facing away from the drum, is connected to the pipe by means of the flow guide elements, this can be done by forming welded connections. Alternatively, it is possible to press the eccentric disc onto the pipe using the flow guide elements.

[0050] In a further embodiment of the invention, the pipe may be a pipe section. In particular, in this case, the pipe section, one of the two eccentric discs, and at least one subsection, especially a sub-element, of at least one further eccentric disc are formed in one piece. Such a one-piece construction can be achieved, for example, by manufacturing it using a casting process, especially an investment casting process. Preferably, the pipe section, the eccentric disc facing away from the drum, and the first sub-element, especially the inner ring disc element, of the eccentric disc near the drum form a single component.

[0051] The one-piece design has the advantage of rapid production of the component and / or the associated component group.

[0052] Additional components and / or pipe sections can be attached to both ends of the pipe section, in particular by welding. MEISSNER BOLTE M / FLOT-127-PC

[0053] 9

[0054] In a further embodiment of the invention, it is possible that the flow guide elements are designed to project laterally in the axial direction beyond a disk base surface, wherein preferably the two eccentric disks are connected to each other by means of the flow guide elements.

[0055] A disk base surface of the at least one eccentric disk is to be understood in particular as an end face of the eccentric disk. Particularly preferably, the disk base surface is the disk base surface of the eccentric disk facing away from the drum.

[0056] Furthermore, it is possible for the flow-guiding elements to extend laterally in the axial direction beyond both base surfaces of the at least one eccentric disc. In other words, the flow-guiding elements extend axially on both sides beyond the base surfaces of the at least one eccentric disc.

[0057] The two eccentric discs are preferably connected to each other by means of the flow guide elements. Because the two eccentric discs are connected by means of the flow guide elements, a compact component can be formed which, in this form, can be attached to the pipe in a single machining step.

[0058] If the two eccentric discs are connected to each other by means of the flow guide elements, preferably one of the two eccentric discs, in particular the first eccentric disc near the drum, is formed from at least two sub-elements, in particular two ring disc elements, wherein the connection by means of the flow guide elements on the two-part eccentric disc then takes place on the inner sub-element, in particular on the inner ring disc element.

[0059] Due to the connection of the two eccentric discs by means of flow guide elements, the uniform movement of the eccentric discs is ensured in particular because of the stable connection of the two discs to each other.

[0060] In one embodiment of the invention, the ring element is arranged on the two eccentric discs in such a way that the ring element is replaceable and / or the opening direction of the channel inlet is changeable. The ring element is equipped with MEISSNER BOLTE M / FLOT-127-PC

[0061] 10 In other words, preferably arranged on or resting against the two eccentric discs, but detachable.

[0062] The ring element is preferably arranged on the two eccentric discs in such a way that it is in sliding contact with them. This allows the ring element to move relative to the at least two eccentric discs. Due to its interchangeability, the ring element can be replaced particularly easily in case of wear. It is also possible to adapt the ring element to the specific tasks of the cutting machine by replacing it.

[0063] Preferably, the two eccentric discs have the same outer outline. Furthermore, the eccentric discs are preferably positioned on the tube such that, viewed axially (i.e., in the direction of the axis of rotation of the cutting machine), the two eccentric discs are identical, or in other words, congruent, to each other. Consequently, the ring element can be arranged identically and / or abutting both end faces.

[0064] Preferably, both the connection points on the two eccentric discs and the ring element itself are designed symmetrically to the center of the channel.

[0065] The ring element can be positioned between the two eccentric discs such that the channel inlet points either clockwise or counterclockwise to the drum's circumference. Due to the design of the discharge system, modifying or repositioning the ring element to align the channel inlet is extremely simple. A single ring element can be used for both the leading and lagging configurations of a solid-bowl screw centrifuge.

[0066] In one embodiment of the invention, the stationary hub element has a, in particular, cam-shaped flange, wherein a pivot point of the drive element is formed on the flange, in particular at the cam tip of the flange.

[0067] The drive element can be designed as a deflection lever and / or as a pin guided in a groove and / or as a rail guided in a groove. MEISSNER BOLTE M / FLOT-127-PC

[0068] 11

[0069] Due to the design of a drive element, in particular due to the design of a drive element as a deflection lever, such an adjustment kinematic system can be provided, which is based on the design of two pivot points fixed with respect to their positions. A first pivot point, namely the pivot point around which the drive element, in particular the adjustment lever, rotates, is formed on the stationary hub element, in particular on the flange of the stationary hub element.

[0070] The second pivot point, namely the pivot point of the eccentric discs, is also fixed in position. This pivot point is preferably located on the longitudinal axis of the pipe, particularly on the axis of rotation of the separation machine. Due in part to the design of two fixed pivot points, a larger adjustment range of the discharge system can be provided compared to known discharge systems, while maintaining the same pipe diameter, especially that of an inlet pipe of a solid-jacketed screw centrifuge.

[0071] Regarding the adjustment range of the drainage system, it may be necessary to limit it. A corresponding limiting mechanism may be designed for this purpose. The positioning of the ring element, and thus the positioning of the channel inlet, may be limited in both directions with respect to its circumferential rotation.

[0072] In one embodiment of the invention, a minimum and a maximum stop can be implemented in conjunction with the movement of the driving element, in particular a deflection lever. This creates a limiting mechanism that defines a maximum range of movement of the ring element relative to the pipe. This is particularly advantageous in embodiments of the drainage system that incorporate an initial torque for adjusting the diameter of the drainage system by means of the driving element, in particular a deflection lever.

[0073] An alternative and / or additional option is to incorporate a stop element on the pipe, particularly on the inlet pipe. This embodiment has the advantage that sufficient installation space is provided in the pipe area for forming a stop. Furthermore, incorporating a limiting mechanism on the pipe, independent of any movement of the deflection lever, has the advantage of requiring less material in the pipe area.

[0074] 12

[0075] The tolerance ranges of the components of the drainage system interact and interact. This is particularly advantageous for those embodiments of the drainage system that provide an initial torque for adjusting the diameter of the drainage system on the pipe. If the limiting mechanism is formed on the pipe, it can be implemented using two pins or similar stop elements that restrict the range of movement of the ring element. The drive element, which is preferably attached at one end to the stationary hub element, particularly to the flange of the stationary hub element, is preferably attached at the opposite end to the ring element. The attachment point on the ring element is preferably located near the channel inlet. Preferably, the attachment point on the ring element is located on the extension section.

[0076] If the drive element is designed as a deflection lever, it is possible for it to have a pin at one end that engages in an opening on the stationary hub element, in particular a round bore. The opening, in particular the round bore, preferably forms the pivot point of the deflection lever, which is fixed in position. At the opposite end of the deflection lever, an opening, in particular a bore, is preferably provided, wherein a pin-like fastening element of the ring element engages in this opening of the deflection lever. Due to the design of a deflection lever, among other things, a more compact design of the drainage system can be achieved. Furthermore, such a deflection lever is easier to clean than, for example, a tongue-and-groove or groove-and-rail combination.

[0077] In a first embodiment, the direct or indirect fixed connection of the two eccentric discs to the rotatable tube can be realized in such a way that both eccentric discs are directly and fixedly connected to the tube.

[0078] In an alternative embodiment, one eccentric disc is directly and rigidly connected to the pipe, while the other eccentric disc is connected to the directly connected disc, forming an indirect, rigid connection to the pipe. In other words, one of the eccentric discs is not directly and rigidly connected to the pipe, but rather indirectly via a connection to the other eccentric disc. MEISSNER BOLTE M / FLOT-127-PC

[0079] 13

[0080] The combination of a directly fixed eccentric disc and an indirectly fixed eccentric disc has the advantage that a one-piece component can be formed which can be easily connected to the pipe in one connection step.

[0081] The advantage of connecting both eccentric discs directly and permanently to the pipe is, in turn, the advantage that the two eccentric discs are simpler in terms of their manufacture.

[0082] It is possible that the rotary device of the separation machine is designed as a screw and that the separation machine is a solid-bowl screw centrifuge. In other words, the described discharge system according to the invention can be implemented in a solid-bowl screw centrifuge, wherein the discharge system preferably forms a peeling system or can be described as a peeling system.

[0083] Preferably, in the design of the separation machine as a solid-bowl screw centrifuge, the pipe is an inlet pipe of the solid-bowl screw centrifuge. The product to be separated is conveyed through this inlet pipe into the drum interior. The stationary hub element can be designed as a stationary cover tube or be a stationary cover tube.

[0084] In an alternative embodiment of the invention, the rotary device of the separating machine is designed as a plate assembly, and the separating machine is a separator. Thus, it is possible to implement the previously described discharge system according to the invention within a separator. In other words, the described discharge system can be a gripper of a separator.

[0085] In the design of the separation machine as a separator, the pipe can be an inlet pipe, a gripper pipe, or a peeling pipe of the separator. In other words, the described discharge system according to the invention can be designed as a gripper for a heavy liquid phase and / or as a gripper for a light liquid phase.

[0086] The invention will be explained in more detail below using exemplary embodiments with reference to the attached schematic drawings.

[0087] This shows: MEISSNER BOLTE M / FLOT-127-PC

[0088] 14

[0089] Fig. 1 shows an exploded view of the components belonging to a flow system of a separation machine according to the invention;

[0090] Fig. 2 shows a perspective view of the composite drainage system;

[0091] Fig. 3 shows a side view of the drainage system with a detailed representation of the pivot points, center points, and directions of movement of the components of the drainage system; and

[0092] Figs. 4a and 4b show cross-sectional views of the drainage system in different operating states.

[0093] In the following, the same reference numbers are used for identical and equivalent parts.

[0094] Fig. 1 shows an exploded view of a separation machine, which in the example shown is a solid shell screw centrifuge and has a further developed drainage system 10.

[0095] The drainage system essentially comprises a ring element 20, a first eccentric disc 30, a second eccentric disc 40, and a drive element 50. The drive element 50 interacts with a stationary hub element 60.

[0096] The drainage system 10 is designed to be adjustable, so that the diameter of the drainage system can be adjusted. Specifically, the channel inlet 21 can be adjusted with respect to its position so that a partial flow of a product separated inside the drum can flow into the channel inlet 21 at different depths.

[0097] The illustrated discharge system 10 is located in a peeling chamber 100 of a solid-bowl screw centrifuge. The peeling chamber 100 is a chamber of a solid-bowl screw centrifuge that adjoins a drum lid of the solid-bowl screw centrifuge. The partial flow, which is to flow via the channel inlet 21 into the channel 22 also shown, flows into the peeling chamber 100 through openings formed in the drum lid. For better MEISSNER BOLTE M / FLOT-127-PC

[0098] 15

[0099] In Fig. 1, the drum or its associated lid is not shown in the illustration of the drainage system 10. However, the depicted flow direction SR is intended to illustrate the direction from which the liquid phase flows out of the openings in the drum lid and enters the peeling chamber 100.

[0100] The channel 22 of the ring element 20 is formed essentially in an outer section of the ring element 20. The ring element 20 essentially comprises a base ring 23 and an extension section 24. As can be seen particularly in Fig. 3, the extension section 24, which essentially encompasses the channel 22 internally, extends over 40-50% of the circumference of the base ring 23. The extension section 24 is designed as a type of curved additional element, the cross-section of which, in the illustrated embodiment, decreases continuously from the channel inlet 21 to the outer end. Alternative designs of the extension section are also possible.

[0101] In the present embodiment, the two eccentric discs 30 and 40 are constructed differently despite having congruent outer outlines 33 and 43, respectively. The second eccentric disc 40, which is located away from the drum, is formed in one piece. The first eccentric disc 30, located closer to the drum, is formed from a first sub-element 31 and a second sub-element 32. The first eccentric disc 30 is formed by screwing the second sub-element 32 onto the first sub-element 31.

[0102] The ring element 20 is rotatably arranged in abutment against the two eccentric discs 30 and 40. For this purpose, the ring element 20 has a receiving section 25 on both end faces 26 (only one of the two end faces 26 is visible in Fig. 1). The receiving section is shaped like a step, so that an outer circumferential section 41 of the second eccentric disc 40 and an outer circumferential section 34 of the first eccentric disc 30 can each be inserted into the receiving section 25, and the ring element 20 is rotatably and slidably mounted on and in abutment against the two eccentric discs 30 and 40.

[0103] In the embodiment shown in Fig. 1, both eccentric discs 30 and 40 are directly and permanently connected to the tube 90. The stationary connection of the MEISSNER BOLTE M / FLOT-127-PC

[0104] 16 second eccentric disc 40 and of the first sub-element 31 of the first eccentric disc 30 is achieved, for example, by forming welded joints.

[0105] Pipe 90 is the inlet pipe of a solid-jacketed screw centrifuge. Due to the fixed connection of the two eccentric discs 30 and 40 to pipe 90, both eccentric discs 30 and 40 can move uniformly within pipe 90. When installing the drain system 10 on pipe 90, the eccentric discs 30 and 40 are first fixedly connected to pipe 90. With regard to the first eccentric disc 30, only the first section 31 of the eccentric disc 30 is initially fixedly connected to the pipe.

[0106] The first sub-element 31 of the eccentric disc 30 is a first ring disc element connected to the tube 90. The second sub-element 32 is designed as an outer ring disc element and is connected to the first ring disc element or the first sub-element 31, in particular by screws.

[0107] After the second eccentric disc 40 and the first sub-element 31 of the first eccentric disc 30 have been fixedly connected to the tube 90, the ring element 20 can be slid over the tube 90 and moved towards the second eccentric disc 40. Since the outer outline or outer diameter of the first sub-element 31 is smaller than the inner diameter of the ring element 20, the ring element 20 can simply be slid over the first sub-element 31. After the ring element 20 has been positioned against the second eccentric disc 40, the second sub-element 32 of the first ring disc 30 can be mounted onto the first sub-element 31. This is done by means of a connection using screws 80.

[0108] The second eccentric disc 40 has axial openings 45. In this case, four axial openings 45 are formed. The liquid phase thus first enters the channel 22 via the channel inlet 21 and then flows out of the component formed by the eccentric discs 30 and 40 and the ring element 20 via the axial openings 45. MEISSNER BOLTE M / FLOT-127-PC

[0109] 17

[0110] The eccentric disc 40 also has flow-guiding elements 46. Due to these flow-guiding elements, the fluid is guided almost in a straight line towards the stationary hub element 60. Swirl of the outflowing fluid is effectively prevented, so that, due to the absence of swirl, a lower pressure loss occurs in connection with the drainage system 10, thus enabling a higher throughput.

[0111] The flow-guiding elements 46 project beyond the disk base 48. The disk base 48 can also be referred to as the end face of the eccentric disk 40.

[0112] The stationary hub element 60, which in this case is a fixed cover tube, has a flange 61 which in this case is cam-shaped.

[0113] A drive element 50 can also be seen. In the present case, the drive element 50 is designed as a deflection lever.

[0114] The pivot point PI of the drive element 50 is formed on the flange 61, specifically at the cam tip 62 of the flange 61. For this purpose, the drive element 50 has a pin 51 at one end, which engages in an opening 63 of the flange 61. At the other end of the drive element 50, an opening 52 is formed, and a pin 29 of the ring element 20 engages in this opening 52 of the drive element 50.

[0115] The pipe 90 can be rotated about the axis of rotation R in the circumferential direction U. In the example shown, the channel inlet 21 of the ring element 20 is positioned such that it points in the first direction of rotation Ul. However, due to the symmetrical design of the drainage system 10, it is also possible to position the ring element 20 rotated by 180° against the eccentric discs 30 and 40. In this case, the channel inlet 21 would point in the second direction of rotation U2.

[0116] The tube 90 is rotatable about the axis of rotation R, whereby, due to the direct or indirect fixed connection of the eccentric discs 30 and 40, movement or rotation of the tube 90 also initiates a movement of the ring element 20. Due to the rotatable mounting of the ring 20 on the eccentric discs 30, MEISSNER BOLTE M / FLOT-127-PC

[0117] The ring element 20 can be moved relative to the eccentric discs 30 and 40 by means of the drive element 50. This causes a change in the position of the channel inlet 21 both in the rotational direction U and in the radial direction r. The distance of the channel inlet 21 to the axis of rotation R can thus be increased or decreased. The distance between the channel inlet 21, specifically the outermost edge 28 of the channel inlet 21, and the axis of rotation R, defines a radius that, in turn, defines the peeling diameter in a solid-bowl screw centrifuge. By changing this distance, the peeling diameter can be changed.

[0118] Fig. 2 shows the drainage system 10 according to Fig. 1 in its assembled state, with the perspective view looking towards the flange 61 of the stationary hub element 60, specifically the cover pipe. It can be seen that the pipe 90 runs inside the hub element 60.

[0119] In Fig. 3, which shows a side view of the drainage system 10 with a stationary hub element 60, the pivot points of the drainage system 20's kinematics and center points are shown. The center point M of the eccentric discs 30 and 40 is shown, as is the pivot point P2 of the eccentric discs 30 and 40. The pivot point of the eccentric discs lies on the axis of rotation R of the tube 90. Both pivot point PI and pivot point P2 are fixed in position. Only pivot point P3, which is located on the drive element at the opposite end to pivot point PI, moves.

[0120] Due to the design of the pivot points Pl, P2 and P3 and their positioning in relation to the center point M of the eccentric discs 30 and 40, a drainage system 10 can be provided which, with the same dimensions of the pipe 90, offers a larger adjustment range compared to drainage systems of the state of the art.

[0121] At the same time, a constant flow cross-section can be formed in the area of ​​the axial openings 45, since relative movement of the ring element 20 to the eccentric discs 30 and 40 only results in a displacement of the elements relative to each other, without a reduction or increase in the flow cross-section. MEISSNER BOLTE M / FLOT-127-PC

[0122] 19

[0123] Despite providing a larger adjustment range (corresponding to the radius between edge 28 and axis of rotation R), the inflow angle into the channel inlet 21 remains largely constant.

[0124] Figures 4a and 4b show cross-sectional views of the drainage system 10 in different operating states. Figure 4a shows the drainage system 10 with the maximum possible peeling diameter. In Figure 4b, the drainage system 10 is shown with the minimum peeling diameter.

[0125] Figures 4a and 4b show the course of the channel 22, the arrangement of the second eccentric disc 40 and the ring element 20 in relation to the pipe 90, as well as the position of the axial openings 45 and the flow guide elements 46.

[0126] Due to the inventive design of the drainage system 10, the design of two eccentric discs 30, 40 and the corresponding positioning of the ring element 20, a constant flow cross-section inside the ring element 20 results for both operating states shown - and in principle for all other possible operating states that are not shown - since only a displacement of the individual components relative to each other takes place, which has no (negative) effect on the flow cross-section that is present in each case.

[0127] Reference symbol list

[0128] 10. Flow system

[0129] 20 ring element

[0130] 21 Channel Inlet

[0131] Channel 22

[0132] 23 basic ring

[0133] 24 Essay section

[0134] 25 Recording section

[0135] 26 end faces

[0136] 28 edge

[0137] 29 pen MEISSNER BOLTE M / FLOT-127-PC

[0138] 20

[0139] 30 first eccentric disc

[0140] 31 first sub-element

[0141] 32 second sub-element

[0142] 33 Outer outline of first eccentric disc

[0143] 34 Outer circumferential section

[0144] 40 second eccentric disc

[0145] 41 Outer circumferential section

[0146] 43 Outer outline of second eccentric disc

[0147] 45° axial opening

[0148] 46 Flow guide element

[0149] 48 disc base area

[0150] 50 drive element

[0151] 51 pen

[0152] 52 Opening

[0153] 60 stationary hub element

[0154] 61 Flange

[0155] 62 Cam tip

[0156] 63 Opening

[0157] 80 screw

[0158] 90 pipe

[0159] 100 peeling chamber

[0160] M Center point eccentric discs

[0161] PI pivot point drive element

[0162] P2 pivot point eccentric discs

[0163] P3 pivot point r radial direction

[0164] R axis of rotation

[0165] U, Ul, U2 Direction of rotation

[0166] SR Flow direction

Claims

1. M / FLOT-127-PC Flottweg SE WH / KS / eh Cutting machine Claims 1. Separation machine with a rotary device located in a drum and a discharge system (10) for at least one partial flow of a product separated within the drum, wherein the discharge system (10) has an arc-shaped channel (22) with a channel inlet (21), wherein the channel (22) is formed at least partially within a ring element (20), wherein the at least one channel (22) directs the at least one partial flow from an outer region of the ring element (20) to at least one axial opening (45), wherein the ring element (20) is rotatably arranged on and / or adjacent to two eccentric discs (30, 40) and the eccentric discs (30, 40) are directly or indirectly fixedly connected to a rotatable tube (90) such that both eccentric discs (30, 40) together with the tube (90) are uniformly movable, wherein the ring element (20) is driven by means of a drive element (50) is connected to a stationary hub element (60).

2. Separating machine according to claim 1, characterized in that at least one of the two eccentric discs (30, 40), in particular a first drum-adjacent eccentric disc (30), is made up of at least two sub-elements (31, 32), in particular of an inner first ring disc element connected with the tube (90) and / or the further eccentric disc (40) and an outer one connected with the first MEISSNER BOLTE M / FLOT-127-PC 2 a second ring disc element connected to a ring disc element, wherein the at least two sub-elements (31, 32) are preferably detachably connected to each other, particularly preferably screwed together.

3. Separating machine according to claim 1 or 2, characterized by the fact that at least one of the two eccentric discs (30, 40), in particular a second eccentric disc (40) facing away from the drum, has at least one axial opening, preferably several axial openings (45).

4. Separation machine according to one of the preceding claims, in particular according to claim 3, characterized by the fact that a flow cross-section formed by the at least one axial opening, preferably the several axial openings (45), is constant regardless of the position of the channel inlet (21).

5. Separating machine according to one of the preceding claims, in particular according to claim 3 or 4, characterized by the fact that at least one of the two eccentric discs (30, 40), in particular the second eccentric disc (40), has radially internal flow guide elements (46) which are preferably formed between the axial openings (45), wherein the at least one eccentric disc, preferably the second eccentric disc (40), is preferably connected to the tube (90) by means of the flow guide elements (46).

6. Separating machine according to claim 5, characterized by the fact that the flow guide elements (46) are designed to project laterally in the axial direction over at least one disk base surface (48) of the at least one eccentric disk (40), wherein preferably the two eccentric disks (30, 40) are connected to each other by means of the flow guide elements (46). MEISSNER BOLTE M / FLOT-127-PC 3 7. Separating machine according to one of the preceding claims, characterized by the ring element (20) being arranged on the two eccentric discs (30, 40) in such a way that the ring element (20) is replaceable and / or the opening direction of the channel inlet (21) is changeable.

8. Separating machine according to one of the preceding claims, characterized by the fact that the stationary hub element (60) has a flange (61), in particular a cam-shaped flange, wherein a pivot point (PI) of the drive element (50) is formed on the flange (61), in particular on the cam tip (62) of the flange (61).

9. Separating machine according to one of the preceding claims, characterized by the fact that the drive element (50) is designed as a deflecting lever and / or as a pin guided in a groove and / or as a rail guided in a groove.

10. Separating machine according to one of the preceding claims, dad u rch kenn zei ch net that - both eccentric discs (30, 40) are directly and permanently connected to the pipe (90) or - an eccentric disc (40) is directly and permanently connected to the pipe (90) and the further eccentric disc (31) is connected to the eccentric disc (40) that is directly and permanently connected to the pipe (90), forming an indirect fixed connection with the pipe (90).

11. Separation machine according to one of the preceding claims, characterized by the fact that the rotary device is designed as a screw and the separation machine is a solid shell screw centrifuge.

12. Separating machine according to claim 11, dad u rch kenn nzei ch net, that MEISSNER BOLTE M / FLOT-127-PC 4 the tube (90) is an inlet tube of the solid jacket screw centrifuge and / or the stationary hub element (60) is a stationary cover tube.

13. Separating machine according to one of claims 1 to 10, characterized by the fact that the rotary device is designed as a plate pack and the separating machine is a separator.

14. Separating machine according to claim 13, dad u rch kennen nz ch net that the tube (90) is an inlet tube or a gripper tube or a peeling tube of the separator.

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