EP3570981B1 - Centrifugeuse - Google Patents

Centrifugeuse Download PDF

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Publication number
EP3570981B1
EP3570981B1 EP18701030.1A EP18701030A EP3570981B1 EP 3570981 B1 EP3570981 B1 EP 3570981B1 EP 18701030 A EP18701030 A EP 18701030A EP 3570981 B1 EP3570981 B1 EP 3570981B1
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EP
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Prior art keywords
flow
centrifuge according
several
centrifuge
drum
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EP18701030.1A
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German (de)
English (en)
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EP3570981A1 (fr
Inventor
Wilfried Mackel
Markus Fleuter
Thomas Bathelt
Axel BARTSCHER
Kristin Katja KETTERER
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GEA Mechanical Equipment GmbH
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GEA Mechanical Equipment GmbH
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Publication of EP3570981A1 publication Critical patent/EP3570981A1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B11/00—Feeding, charging, or discharging bowls
    • B04B11/02—Continuous feeding or discharging; Control arrangements therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
    • B04B1/04—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with inserted separating walls
    • B04B1/08—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with inserted separating walls of conical shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B11/00—Feeding, charging, or discharging bowls
    • B04B11/06—Arrangement of distributors or collectors in centrifuges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B7/00—Elements of centrifuges
    • B04B7/08—Rotary bowls
    • B04B7/12—Inserts, e.g. armouring plates

Definitions

  • the invention relates to a centrifuge according to the preamble of claim 1.
  • centrifuges are known in a wide variety of configurations, in particular in a configuration as a separator with a vertical axis of rotation or as a solid bowl screw centrifuge with a vertical or horizontal axis of rotation.
  • a generic centrifuge - see also the U.S. 3,438,571 A - for processing flowable or liquid products has a number of tubes and other flow volumes through which the product to be processed centrifugally or one of the phases resulting from the centrifugal separation and / or clarification flow during operation. These tubes and other volumes are referred to below as the total flow paths of the centrifuge.
  • These flow paths include an inlet pipe, a distributor with distribution channels, an interior of the drum, if applicable - if available - a set of plates in the interior of the drum, one or more liquid drainage channels inside the drum, channels in the impeller (s), one or more Liquid outlets and, if necessary, a solids outlet.
  • the flow paths each have different large cross-sections and / or different contouring (for example circular cross-section, oval or angular cross-section).
  • a product to be processed with the centrifuge is fed through the feed pipe into the rotating drum, in which it is accelerated to the rotational speed of the rotating drum by a distributor and fed into the interior of the drum. This is where the actual centrifugal clarification and / or separation takes place.
  • the phases separated from one another are then discharged through the corresponding liquid and / or solids outlets.
  • the invention has the object of further developing the generic centrifuge in the sense of a further reduction in the formation of turbulent flow.
  • a centrifuge is created with a drum rotatable about an axis of rotation with a flow path for a flowable or liquid product, which has at least one feed pipe, a distributor with at least one or more distributor channels for feeding product into the interior of the drum and at least one liquid discharge characterized in that at least one flow straightener or several flow straighteners is / are integrated into the flow path.
  • the flow straightener is a device for reducing turbulent flows.
  • a reduction of the effect of turbulent flows is achieved in a simple manner, at least locally in the area of the flow straightener and in its connection. This has a beneficial effect on the operation of the centrifuge.
  • Several of the flow straighteners can also be provided. In this way, the vibrations of the centrifuge are reduced and the consequences of a reduced product throughput or incomplete clarification and / or separation are reduced or prevented.
  • the at least one flow straightener has one or more stages.
  • a multi-level structure makes it possible in particular to combine several structurally differently designed sections in just one flow straightener, which results in a particularly advantageous influencing of the flow conditions.
  • one or more stages of the flow straightener are formed in a component of the separator that does not rotate during operation. This is because the flow straightener has a particularly advantageous effect on operation on this or these non-rotating components the centrifuge, which in particular results in a more uniform or low-vibration rotation behavior and / or results in an improved separation behavior of the suspension.
  • At least one stage of the flow straightener is also designed as a flow laminator.
  • the flow laminator divides the pipe section into which it is inserted or in which it is formed into two or more individual channels. In this way, a largely laminar flow is achieved in the area of these individual channels and also in the subsequent pipe section, in which there is hardly any turbulence.
  • One or more stages can advantageously be provided in one or more of the following component (s) of the centrifuge that do not rotate during operation: in the inlet pipe and / or in a liquid outlet or in several liquid outlets for discharging a liquid phase from the drum, in particular in one or more of the one or more peeling discs optionally provided as a liquid drain and / or on a drain pipe.
  • a particularly significant reduction in vibrations was achieved using a flow straightener in the feed pipe.
  • one or more further stages of the single or multi-stage flow straightener to be provided on one or more of the following components of the centrifuge that rotate during operation: in one or more distribution channels of the distributor, and / or at least one Drainage channel for a light or heavy liquid phase, in particular on the distributor or above a separating plate, and / or in one or more plate gaps between plates of a possibly existing plate pack.
  • At least one stage of the flow straightener can also advantageously be designed as a flow homogenizer.
  • the flow homogenizer is designed in such a way that an essentially constant flow velocity of the liquid flowing through it results over its cross section. Unlike in a free pipe, the flow velocity is the one flowing through it The inside of the liquid is not or not significantly higher than at the edge of the pipe. This reduces the occurrence of pressure differences.
  • one or more stages of the flow straightener reduce the occurrence of turbulent flows.
  • the flow homogenizer and / or the flow laminator have a positive influence on the coalescence behavior of the suspension flowing through it.
  • the flow straightener connected in series in the flow direction, has at least the two stages flow homogenizer and flow laminator - preferably in this sequence in the flow direction.
  • At least one stage - in particular a last stage - of the flow straightener is designed as a diaphragm.
  • the diaphragm has a cross-sectional reduction in which the cross section is smaller or smaller than the cross section of the pipe in front of and behind the diaphragm. In this way, a defined separation of the liquid flow is achieved at the transition from a pipe flow to a free jet flow, so that the laminarity of the liquid flow from one or more preceding stages is maintained.
  • Fig. 1 shows a rotatable drum 1 of a centrifuge, which is designed as a separator with a vertical axis of rotation.
  • the drum 1 is part of a system of the separator which rotates or rotates about the vertical axis of rotation during operation.
  • the separator also has non-rotating components during operation, which in this respect do not belong to the rotating system.
  • the separator can in this respect in addition to the drum 1 also other components - not all of them shown here such as a control computer, a drive motor for rotating the drum, a hood 30, a solids catcher 40 and so on.
  • the rotatable drum 1 placed on a rotatably mounted drive spindle 2 is preferably - but not necessarily - designed for continuous operation, i.e. the continuous and non-batch processing of a product.
  • the drum 1 consists of a lower part 3 and an upper part 4.
  • a piston slide 5 is inserted into the lower part 3.
  • a disk pack 7 of conical separating disks 8 is arranged in the interior 6 of the drum.
  • the separation plates 8 are arranged on a distributor shaft 9 of a distributor 10.
  • the components mentioned above in this paragraph belong to the rotating system of the separator. In this context, it should also be mentioned that the invention can also optimize, in particular, the operation of such a separator or decanter in the drum of which such a disk pack 7 made up of separating disks 8 is formed.
  • a feed pipe 11 serves to feed a flowable product to be processed into the drum 1 (flow direction here: from top to bottom).
  • the inlet pipe 11 is designed here as a stationary element that does not rotate during operation. It extends concentrically to the axis of rotation into the drum 1 Fig. 1 and 2 In a preferred - but not mandatory - configuration, it protrudes into the separator drum 1 from above. However, it can also extend into the drum 1 from below.
  • the product emerging from the free end of the feed pipe 11 flows into radially extending distributor channels 12a, b of the distributor 10 and is rotated in these as a result of the rotations of the rotating separator drum 1 or accelerated in the circumferential direction.
  • the distribution channels 12a, b (flow direction radially outwards) open into the drum interior 6 with the plate stack 7.
  • the product is clarified from solids and - not shown here - optionally separated into two or more liquid phases of different density.
  • the solid flows out of the disk package 7 radially outwards and the liquid phase radially inwards, where it is directed radially upwards on the disk package 7 in a drainage channel 13.
  • the lighter liquid phase is also discharged through such a drainage channel 13 on the inside of the plate assembly 7, while the heavier liquid phase flows radially outward from the plate assembly 7 and is passed there through another drainage channel.
  • This is formed, for example, between a separating plate above the plate assembly 7 and the upper drum part 4 (not shown here).
  • one or more outlets are used for a liquid phase L.
  • a single liquid outlet is provided.
  • the liquid flowing radially inward from the plate stack 7 flows into a peeling disk chamber 14, which rotates with the drum 1 and is designed here as the upper, final part of this drum 1.
  • a peeling disk 15 that does not rotate here arranged, which forms the liquid outlet.
  • the peeling disk 15 has a disk section 16 arranged in the peeling disk chamber 12 as well as a peeling disk shaft 17 which is attached to an inner radius of the disk section 16 and protrudes outward from the peeling disk chamber 14 and the entire drum 1 into a line 18 outside the drum 1 flows out.
  • the at least one inlet of the peeling disk 15 is preferably on the outer radius of the disk section 16. From this at least one inlet, the liquid flows in the disk section 16 radially inward (in at least one radial channel) and then flows axially upward through the peeling disk shaft 17 Drum and from the rotating system 1.
  • the peeling disk 15 works on the principle of a centripetal pump. If another liquid phase is to be diverted, it is diverted via a further liquid drain, if necessary via a further paring disc.
  • the solids are expelled from the centrifuge drum 1 to the outside through circumferentially distributed, radially extending outlet openings 19, preferably in the region of the largest radius / circumference of the centrifuge drum.
  • the outlet openings 19 can be designed as nozzles through which solids are continuously ejected (not shown). Alternatively, an opening and closing mechanism can also be assigned to them.
  • the hydraulically actuated piston valve 5 is provided in the lower drum part 2, with which the outlet openings 19 can be opened and closed again discontinuously.
  • At least one or more flow straighteners 20 are installed in the flow path of the centrifuge - see FIG Figs. 2 to 4 - to integrate.
  • the flow straightener 20 is a device for reducing turbulent flows.
  • the flow straightener 20 can have one or more stages 20a, 20b, 20c.
  • the at least one flow straightener 20 is preferably integrated into a section of the flow paths that is tubular. It is preferably used in this tubular section.
  • the preferred structure of a flow straightener 20 inserted into the inlet pipe 11 is exemplified with reference to FIG Fig. 2 discussed.
  • the flow straightener 20 - see Fig. 2 - Subdivides the cross-section of this tubular section over its entire length or part of its length into several individual cross-sections and / or chambers which are smaller compared to the overall cross-section. This is used to generate less turbulent flows.
  • At least one step 20a of the flow straightener 20 is designed as a flow homogenizer 21.
  • the flow homogenizer 21 is designed in such a way that an essentially constant flow velocity results over its cross section. In contrast to a free pipe, the flow velocity of the liquid flowing through is not or not significantly higher on the inside than at the edge of the pipe.
  • the flow homogenizer 21 has walls which subdivide the pipe section in the area of the flow homogenizer 21 into a plurality of chambers 21a, b, c,... Which are fluidically connected to one another.
  • the chambers 21a, b, c, ... preferably have a sponge, sieve and / or braid-like structure.
  • the chambers 21a, b, c ensure a standardization of the flow velocity of the liquid flowing through over the entire cross section. In this way, in the area of these chambers 21a, b, c, ... and also in the pipe section following thereafter, a largely uniform flow and a largely uniform pressure over the cross section in this section is achieved.
  • the flow homogenizer 21 here has a constant diameter D1 transverse to the main direction of extent X and a length L1.
  • the flow homogenizer 21 preferably forms the first stage of several stages 20a, b, c of the flow straightener 20. Another advantage consists in an advantageous influencing of the separation process by the formation of droplets in a liquid phase of a dispersion.
  • At least one step 20b of the flow straightener 20 can advantageously be designed as a flow laminator 22.
  • the flow laminator 22 divides the pipe section into which it is inserted or in which it is formed into two or more individual channels 22a, b, c, ....
  • the individual channels 22a, b, c, ... are whole or essentially separated from one another in terms of flow. However, they can also be connected to one another (across) in order to counteract different pressures. They preferably have relatively smooth inner walls.
  • the flow velocity in them is preferably 0.1 m / sec to 20 m / sec.
  • the individual channels 22a, b, c, d extend in sections or over their entire length parallel to one another. In this way, a largely laminar flow is achieved in the area of these individual channels 22a, b, c, ... and also in the subsequent pipe section, in which there is hardly any turbulence.
  • the individual channels 22a, 22b, 22c, ... can be designed as parallel channels in a one-piece material block 22 * (see Fig. 5 ).
  • This material block 22 * can consist of a ceramic, a metal and / or a plastic material.
  • the individual channels 22a, b, c, ... can also be designed as individual tubes which are combined to form a tube bundle (not shown).
  • the individual channels 22a, b, c, ... can have a round or angular cross section.
  • the flow laminator 22 preferably forms the second stage of several stages 21, 22, 23 of the flow straightener 20.
  • the flow laminator 22 has a diameter D2 transverse to the main direction of extent X and a length L2.
  • I1 The distance between the flow homogenizer 21 and the flow laminator 22 is denoted by I1 (see FIG Fig. 2 ).
  • At least one step 20c of the flow straightener 20 is then designed as a diaphragm 23.
  • the diaphragm 23 has a cross-sectional reduction 23a, in which the cross section is smaller or reduced in comparison to the cross section of the pipe in front of and behind the diaphragm 23.
  • the contour of the cross-sectional reduction 23a can be sharp-edged, rounded or conical (as shown) both on the inlet side and on the outlet side.
  • the task of the diaphragm is a defined separation of the liquid flow at the transition from a pipe flow to a free jet flow, so that the laminarity of the liquid flow is maintained.
  • the diaphragm 23 has an outer diameter D3 transverse to the main direction of extent X and an inner diameter d3 and a length L3.
  • I2 The distance between the flow laminator 22 and the diaphragm 23 is denoted by I2.
  • a particularly advantageous reduction in turbulence can be achieved in that one, two or all three of the stages 20a, 20b, 20c described above are arranged one behind the other in a flow passage or a flow path, in particular in a pipe section, preferably but not necessarily - in the order described.
  • the at least one flow straightener 20 is entirely or at least some of the stages of the at least one flow straightener 20 are formed on a part that does not rotate when the centrifuge is in operation.
  • one or more further stages of the at least one flow straightener or further flow straighteners can also optionally be formed on a part that rotates during operation of the centrifuge.
  • the non-rotating parts can include the inlet pipe 11, one or more peeling disks 15 and / or a discharge pipe behind the peeling disk 15 in the direction of flow.
  • one (see Fig. 3 ) or several distribution channels 12a, 12b, the plate gap (s) between two adjacent separating plates 8 of the plate assembly 7 see FIG Fig.
  • the respective flow straightener 20 brings about a reduction in the turbulent flows both on the components that do not rotate during operation and on the rotating components. There is an imbalance in the process to be avoided by a suitable distribution of several flow straighteners, for example by inserting a flow straightener in each distribution channel.
  • a particularly advantageous reduction in turbulence can be achieved in that one, two or all three of the stages described above are arranged one behind the other in a pipe section.
  • the elements of the flow straightener can be manufactured in a wide variety of ways, including 3-D printing or other manufacturing processes such as welding, soldering, punching, drilling, milling, injection molding, gluing, joining and / or pressing.
  • the invention is suitable not only for separators with a vertical axis of rotation but also for other centrifuges, for example also for solid bowl screw centrifuges with or without a disk pack.

Landscapes

  • Centrifugal Separators (AREA)

Claims (19)

  1. Centrifugeuse comportant un tambour (1) pouvant tourner autour d'un axe de rotation (D) et ayant un chemin de passage pour un produit fluide, qui présente au moins un tube d'alimentation (11) qui ne tourne pas pendant le fonctionnement ainsi que, dans le tambour (1), un distributeur (9) avec au moins un ou plusieurs canaux de distribution (12a, 12b) pour l'amenée de produit dans l'espace intérieur de tambour (6) et au moins une sortie de liquide, dans laquelle au moins un redresseur d'écoulement (20) est intégré dans le chemin de passage, dans laquelle ledit au moins un redresseur d'écoulement (20) présente un ou plusieurs étages (20a, 20b, 20c), dans lequel un ou au moins un desdits un ou plusieurs étages dudit au moins un redresseur d'écoulement est/sont formé(s) dans au moins un chemin d'écoulement d'un composant du séparateur qui ne tourne pas pendant le fonctionnement, caractérisé en ce qu'au moins un étage (20a) du redresseur d'écoulement est réalisé sous la forme d'un laminateur d'écoulement (22), et que le laminateur d'écoulement (22) divise une partie de tube dans laquelle il est inséré ou dans laquelle il est formé en deux ou plusieurs canaux individuels (22a, b, c, ...) qui s'étendent parallèlement les uns aux autres sur certaines parties ou sur toute leur longueur.
  2. Centrifugeuse selon la revendication 1, caractérisée en ce qu'un empilement de disques (7) formé de disques de séparation (8) est disposé dans le tambour (1).
  3. Centrifugeuse selon l'une ou plusieurs des revendications 1 à 2, caractérisée en ce que le redresseur d'écoulement présente, montés en série dans le sens d'écoulement, au moins un étage réalisé sous la forme d'un homogénéisateur d'écoulement (21) et l'étage réalisé sous la forme d'un laminateur d'écoulement (22).
  4. Centrifugeuse selon la revendication 3, caractérisée en ce que l'homogénéisateur d'écoulement (21) est conçu de telle sorte qu'il en résulte une vitesse d'écoulement sensiblement constante sur sa section transversale.
  5. Centrifugeuse selon l'une des revendications 3 ou 4 précédentes, caractérisée en ce que l'homogénéisateur d'écoulement (21) présente des parois qui le divisent en une pluralité de chambres (21a, b, c, ...) reliées entre elles fluidiquement.
  6. Centrifugeuse selon l'une des revendications 3 à 5 précédentes, caractérisée en ce que l'homogénéisateur d'écoulement (21) présente une structure de type éponge, tamis et/ou treillis.
  7. Centrifugeuse selon l'une des revendications 3 à 6 précédentes, caractérisée en ce que l'homogénéisateur d'écoulement (21) présente un diamètre D1 transversalement à la direction principale d'extension X et une longueur L1, et que s'applique : 0,5 < = L 1 / D 1 < = 5 .
    Figure imgb0019
  8. Centrifugeuse selon l'une des revendications 3 à 7 précédentes, caractérisée en ce que l'homogénéisateur d'écoulement (21) forme le premier étage de plusieurs étages (20a, b, c) du redresseur d'écoulement (20).
  9. Centrifugeuse selon l'une des revendications précédentes, caractérisée en ce que les canaux individuels (22a, 22b, 22c, ...) sont réalisés sous la forme de canaux parallèles dans un bloc de matériau (22*) ou que les canaux individuels (22a, b, c, ...) sont réalisés sous la forme de tubes individuels qui sont combinés pour former un faisceau de tubes.
  10. Centrifugeuse selon l'une des revendications précédentes, caractérisée en ce que le laminateur d'écoulement (22) forme le deuxième étage de plusieurs étages (21, 22, 23) du redresseur d'écoulement (20).
  11. Centrifugeuse selon l'une des revendications précédentes, caractérisée en ce que le laminateur d'écoulement (22) présente un diamètre D2 transversalement à la direction principale d'extension X et une longueur L2, la condition suivante étant remplie : 0,5 < = L 2 / D 2 < = 10 .
    Figure imgb0020
  12. Centrifugeuse selon l'une des revendications 3 à 8 précédentes, caractérisée en ce que la distance entre l'homogénéisateur d'écoulement (21) de longueur L1 et le laminateur d'écoulement (22) est désignée par I1, la condition suivante étant remplie : 0 < = I 1 / L 1 < = 1 .
    Figure imgb0021
  13. Centrifugeuse selon l'une des revendications précédentes, caractérisée en ce qu'au moins un étage optionnel (20c) du redresseur d'écoulement (20) est réalisé sous la forme d'un diaphragme (23) qui présente une réduction de section transversale (23a).
  14. Centrifugeuse selon la revendication 13, caractérisée en ce que le diaphragme (23) présente un diamètre extérieur D3 transversalement à la direction principale d'extension X et un diamètre intérieur d3 ainsi qu'une longueur L3, et que les conditions suivantes sont remplies : 0,1 < = L 3 / D 3 < = 2 ;
    Figure imgb0022
     et 0,5 < = d 3 / D 3 < = 0,95 .
    Figure imgb0023
  15. Centrifugeuse selon l'une des revendications 13 ou 14 précédentes, caractérisée en ce que la distance entre le laminateur d'écoulement (22) de longueur L2 et le diaphragme (23) est désignée par I2 et que la condition suivante est remplie : 0 < = I 2 / L 2 < = 1 .
    Figure imgb0024
  16. Centrifugeuse selon l'une des revendications précédentes, caractérisée en ce qu'un ou plusieurs étages du redresseur d'écoulement à un ou plusieurs étages (20) est/sont prévu(s) dans un ou plusieurs des composants suivants de la centrifugeuse qui ne tournent pas pendant le fonctionnement :
    a. dans le tube d'alimentation (11) et/ou
    b. dans une évacuation de liquide ou dans plusieurs évacuations de liquide pour évacuer une phase liquide du tambour, en particulier dans un ou plusieurs des disques de pelage (15) éventuellement prévus comme évacuations de liquide et/ou sur un tube d'évacuation.
  17. Centrifugeuse selon l'une des revendications précédentes, caractérisée en ce qu'un ou plusieurs étages supplémentaires du redresseur d'écoulement (20) à un ou plusieurs étages est/sont prévu(s) dans un ou plusieurs des composants suivants de la centrifugeuse qui tournent pendant le fonctionnement :
    a. dans un ou plusieurs canaux de distribution (12a, 12b) du distributeur et/ou
    b. dans au moins un canal d'évacuation (13) pour une phase liquide légère ou lourde, en particulier au niveau du distributeur ou au-dessus d'un disque de séparation, et/ou
    c. dans un ou plusieurs espaces entre les disques d'un empilement de disques (7) éventuellement présent.
  18. Centrifugeuse selon l'une des revendications précédentes, caractérisée en ce qu'un ou plusieurs étages du redresseur d'écoulement ont pour effet de réduire l'apparition d'écoulement turbulents.
  19. Centrifugeuse selon l'une des revendications précédentes, caractérisée en ce que l'homogénéisateur d'écoulement et/ou le laminateur d'écoulement ont une influence positive sur le comportement de coalescence de la suspension qui s'écoule à travers eux.
EP18701030.1A 2017-01-20 2018-01-18 Centrifugeuse Active EP3570981B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017101129 2017-01-20
PCT/EP2018/051240 WO2018134320A1 (fr) 2017-01-20 2018-01-18 Centrifugeuse

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EP3570981A1 EP3570981A1 (fr) 2019-11-27
EP3570981B1 true EP3570981B1 (fr) 2021-03-03

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DE (1) DE102018101102A1 (fr)
WO (1) WO2018134320A1 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2594445A (en) * 1946-10-23 1952-04-29 Sharples Corp Centrifugal machine and process
CH436132A (de) 1962-05-19 1967-05-15 Mueller Hans Zentrifuge
US3438571A (en) * 1965-03-08 1969-04-15 Alfa Laval Ab Centrifugal separator
DE1532721A1 (de) * 1966-08-20 1970-03-12 Buckau Wolf Maschf R Vollmantel-Zentrifuge mit einer zentralen Auslassoeffnung in der Schleudertrommel
AT374120B (de) 1980-09-15 1984-03-26 Berber Viktor A Kegelteller fuer einen separator
US6019717A (en) 1998-08-19 2000-02-01 Fleetguard, Inc. Nozzle inlet enhancement for a high speed turbine-driven centrifuge

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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EP3570981A1 (fr) 2019-11-27
WO2018134320A1 (fr) 2018-07-26
DE102018101102A1 (de) 2018-07-26

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