EP3740321B1 - Centrifugeuse - Google Patents

Centrifugeuse Download PDF

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Publication number
EP3740321B1
EP3740321B1 EP19700687.7A EP19700687A EP3740321B1 EP 3740321 B1 EP3740321 B1 EP 3740321B1 EP 19700687 A EP19700687 A EP 19700687A EP 3740321 B1 EP3740321 B1 EP 3740321B1
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EP
European Patent Office
Prior art keywords
wear protection
drum
protection elements
centrifuge according
wear
Prior art date
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Active
Application number
EP19700687.7A
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German (de)
English (en)
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EP3740321A1 (fr
Inventor
Thomas Kleimann
Thomas Bathelt
Axel BARTSCHER
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GEA Mechanical Equipment GmbH
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GEA Mechanical Equipment GmbH
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Publication of EP3740321A1 publication Critical patent/EP3740321A1/fr
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    • 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
    • B04B1/10—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with discharging outlets in the plane of the maximum diameter of the bowl
    • B04B1/14—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with discharging outlets in the plane of the maximum diameter of the bowl with periodical discharge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B7/00—Elements of centrifuges
    • B04B7/08—Rotary bowls
    • B04B7/12—Inserts, e.g. armouring plates

Definitions

  • the invention relates to a centrifuge according to the preamble of claim 1.
  • the features of the generic term and feature a) of the label reveal the DE 28 34 340 QA1.
  • the technological background also includes: DE 28 44 721 A1 called.
  • the closed drum keeps the materials in the rotating system, in which a pressure builds up that is proportional to the square of the angular velocity " ⁇ 2 ".
  • the solid under pressure is pressed through these outlet opening(s) at high speed and thus energy.
  • the solids especially abrasive solids, can cause wear on the discharge opening(s) of the lower drum part, on the upper drum part and in particular on the piston slide.
  • the invention has the task of creating further constructive ways to protect elements of and on centrifuge drums against abrasive wear.
  • the drum part on which the first wear protection elements are arranged is the upper drum part (which may also include an element such as a ring arranged on the upper drum part). If, on the other hand, the piston slide is guided displaceably in the upper part of the drum - which is less preferred but can be achieved - the drum part on which the first wear protection elements are arranged is the lower drum part.
  • first and/or second wear protection element(s) are designed such that they cover the entire axial annular surface of the component on which they are arranged or attached.
  • This configuration offers the advantage that the component or components or functional carriers, which are activated by mechanically opening and closing the solids discharge openings Allow solids outlet to be equipped with wear protection elements over its entire circumference or in the circumferential direction and be protected accordingly.
  • first and/or second wear protection elements are designed in such a way that they only cover a part of the axial annular surface of the component on which they are arranged (i.e. either on the one hand the upper drum part or the lower part and/or on the other hand the Cover piston slide). Sections of the correspondingly covered areas are then better protected.
  • wear protection elements are provided on both corresponding components - in particular on the upper part of the drum and on the piston slide - and that these abut one another axially in the closed state of the solids discharge openings of the drum. This results in particularly advantageous protection for both components.
  • first and/or second wear protection elements are designed such that they only cover a radial part of the axial annular surface of the component on which they are arranged.
  • first and/or second wear protection element(s) are designed such that they only cover individual circumferential sections of the axial annular surface of the component on which they are arranged, so that they do not form a circumferentially closed ring .
  • first and/or second wear protection elements work together to form a circumferentially closed ring. In this way, particularly advantageous wear protection is achieved.
  • this ring projects axially inwards over the respective component. This means that some solid matter can accumulate here, which provides further protection against wear. This will be explained in more detail below and also based on the description of the figures.
  • the ring can also be flush with the respective component radially inwards.
  • first and/or second wear protection elements are arranged in a form-fitting manner on the component whose surface they cover.
  • solids are understood to mean the substances that are emptied through the outlet openings of the drum. These can be, for example, cloudy substances or contamination, but also auxiliary materials such as bentonite or valuable materials such as algae, yeast, cell cultures or microorganisms. The term solid should not be understood too narrowly. This also includes a possibly flowable phase, which can be emptied through the openings that can be released and closed by the piston slide.
  • the first wear protection element(s) can thus be designed in such a way that they cover the entire axial annular surface of the upper drum part. Alternatively, they can also be designed in such a way that they extend radially and/or in the circumferential direction only over part of the axial annular surface of the upper drum part and only partially cover it. It can preferably be provided that the first wear protection element(s) form a circumferentially closed ring. However, it or they can only be provided in sections in the circumferential direction, so that no circumferentially closed ring is formed. However, it is preferably provided that at least the radial region is assigned a wear protection element of the upper drum part radially in front of each discharge opening.
  • the second wear protection element or elements can be designed in such a way that they cover the entire axial annular surface of the piston slide. Alternatively, they can also be designed in such a way that they extend radially and/or in the circumferential direction only over part of the axial annular surface of the piston slide and only partially cover it. It can preferably be provided that the second wear protection element(s) has a circumferentially closed ring form. However, it or they can only be provided in sections in the circumferential direction, so that no circumferentially closed ring is formed. However, it is preferably provided that at least the radial region is assigned a wear protection element of the piston slide radially in front of each discharge opening. In this way, the abrasive wear on the piston valve in this vulnerable area is effectively reduced. This is a preferred embodiment of the invention. Particularly advantageous wear protection results when the ring of wear protection elements on the piston slide is designed to be circumferentially closed.
  • the first and/or second wear protection elements can be designed as plates, in particular as arcuate plate sections of an otherwise preferably flat ring at least on one side. These can then preferably have the shape of a circular ring segment.
  • the circular ring segments can complement each other to form a closed circle or ring. They can each be placed next to each other in the circumferential direction. Each circular ring segment is then not circumferentially closed and is preferably smaller than 360°, in particular smaller than 180° or even smaller than 90°.
  • the plurality of wear protection elements together with one if, for example, two semicircles form a ring) or possibly two adjacent wear protection elements (for example, if three or more circular ring segments form a ring) then each have a common abutting edge.
  • a joint is therefore formed between adjacent or abutting abutting edges.
  • the respective joint or all joints can run completely or partially radially. However, it is preferred that it does not run radially entirely or in sections but is inclined at an angle ⁇ in the direction of rotation of the drum. This prevents the radially escaping solid from following the course of the joint and eroding it. Since the direction of the escaping solid essentially crosses the course of the joint at the angle ⁇ , erosion of the joint is minimized.
  • the respective joint or all joints can also have a wave-shaped or zigzag-like contour, in such a way that adjacent wear protection elements can be lined up or lined up with one another in a form-fitting manner in the circumferential direction.
  • the radially emerging abrasive solid particles do not immediately follow a joint that forms the respective abutting edge between two wear protection elements, but are advantageously slowed down by the wavy or zigzag-like course of the abutting edge and thus do not expand or further grind the joint can.
  • the wave or zigzag shape of the abutting edge also enables the abrasive solid particles to get stuck in the joint, which results in further advantageous protection of the abutting edge from further abrasive expansion of the joint.
  • the abutting edge has an alternating arrangement of one or more angular sections.
  • the wavy or zigzag-like course of the abutting edge is formed in an advantageously simple manner.
  • Solids that have penetrated into the joint are slowed down by the angle section and prevented from flowing further.
  • the solid collected in this way closes the joint, which advantageously protects the abutting edge from further abrasive expansion of the joint.
  • the opening direction of the angle ⁇ is directed in the direction of rotation of the drum. Since the escaping solid is braked in the opposite direction to the direction of rotation, an angle ⁇ in the direction of rotation favors the crossing of the escaping solid and the joint.
  • first wear protection elements and the second wear protection elements are designed so that they each protrude a defined distance radially beyond the inner edge of the upper drum part or piston slide into the interior of the drum.
  • Fig. 1 shows a centrifuge - here designed as a separator - for clarifying solids-containing, flowable starting products AP from solids with a rotatable drum 1 with a vertical axis of rotation D.
  • the starting product AP is processed in continuous operation.
  • the separator shown here is a self-draining separator. This means that the inflow of the suspension to be clarified or the starting product AP to be clarified takes place continuously and the discharge of at least one clarified liquid phase, called clear phase KP, also takes place continuously.
  • the drum 1 of the centrifuge has a discontinuous solids outlet, whereby the solid F separated from the starting product AP by clarification is removed at intervals by opening and reclosing one or more outlet openings 2.
  • the rotatable drum 1 has a lower drum part 3 and an upper drum part 4.
  • the drum 1 is surrounded here by a hood 5 which is spaced apart from it and does not rotate during operation.
  • the drum 1 is also placed on a drive spindle 6, which is rotatably mounted and can be driven by a drive motor.
  • the rotatable parts overall form a rotating system, which includes the drum 1 and the drive spindle 6. During operation, the rotating system is rotated in a direction of rotation U.
  • the drum 1 has a product inlet 7 through which the starting product AP is passed into the drum 1. It also has at least one process 8 - provided with a gripper - which serves to derive a clear phase KP from the drum 1.
  • the gripper - also called a peeling disk - is designed here as a centripetal pump.
  • the process 8 can also be carried out constructively in a different way or with other means.
  • the drum can be hermetically sealed or not hermetically sealed.
  • the drum 1 preferably has a plate pack 9 made of axially spaced separating plates.
  • a solids collecting space 10 is formed between the outer circumference of the plate pack 9 and the inner circumference of the drum 1 in the area of its largest inner diameter. Solids, which are separated from the clear phase KP in the area of the plate stack 9, collect in the solids collecting space 10, from which the solids F can be discharged from the drum 1 via one or more outlet openings 2.
  • the outlet opening(s) 2 can be opened and closed here by means of a piston slide 11, which is arranged in the lower drum part 3 and can be displaced parallel to the axis of rotation (in particular vertically).
  • a piston slide 11 which is arranged in the lower drum part 3 and can be displaced parallel to the axis of rotation (in particular vertically).
  • the drum 1 has an actuating mechanism.
  • this includes at least one supply line 22 for a control fluid, such as water or clear phase KP and a valve arrangement 23 in the drum 1 and further elements outside the drum 1.
  • a control fluid such as water or clear phase KP
  • a valve arrangement 23 in the drum 1 and further elements outside the drum 1.
  • This enables the control fluid to be supplied via a metering arrangement 24 arranged outside the drum 1, which is assigned to a hydraulic line 25 for the control fluid arranged outside the drum 1, so that the control fluid can be introduced into the drum 1 by releasing the valve arrangement 23 for a solids emptying of the solid F or, conversely, the inflow of control fluid can be interrupted in order to move the piston slide 11 to move accordingly to release the outlet opening(s) 2.
  • At least one sensor device 26 can be arranged on the drive spindle 6 and/or the drum 1, which is designed to determine the current amount of the speed of the drive spindle 6 or the current speed of the drum 1 or the rotating system of the centrifuge.
  • a sensor device 27 for determining the flow rate volume/time or one or more parameters, such as mass/time, of the starting product AP to be fed into the drum 1 can also be arranged on or in the product inlet 7 for the starting product AP into the drum 1. This is advantageous, but not mandatory.
  • the sensor devices 26, 27 are connected via data connections 28, 29 to an evaluation and control unit 30 (preferably a control computer for the centrifuge), which evaluates the measured values determined and the movement of the piston slide 11 and thus also the time interval until the opening of the Exhaust opening(s) 2 controls or regulates.
  • the actuating mechanism for the piston slide 11 - here in particular the metering arrangement 24 - can be connected via a data connection 31 to an evaluation and control unit 30, which also has a program routine for controlling and / or regulating the solids outlet.
  • the dosing arrangement 24 can, for example, be of the type DE 10 2005 049 941 A1 be designed.
  • a further controllable device 32 - for example a controllable valve - can preferably be connected to the product inlet 7, with which the volume flow in the inlet can be changed in order to change the inlet quantity or the current inlet volume V AP of starting product AP to be processed per unit of time .
  • This controllable device 32 is connected to the control unit 30 via a data connection 33.
  • the aforementioned data connections 28, 29, 31, 33 enable data transmission from or to the control and evaluation unit. They can each be designed as lines or as wireless connections.
  • Fig. 2a is an enlarged detail of the section of the drum 1, in which the outlet opening(s) 2 is shown in section. Also indicated here is a radially outer region of the drum interior, in which solid F has collected radially on the inside in front of the outlet opening 2 shown here.
  • the piston slide 11 is conically toroidal - and preferably also ring-shaped - and is axially movably guided in the lower drum part 3. In an upper position, it rests with an upper axial annular surface 11a on a corresponding lower axial annular surface 4a of the upper drum part 4, or on a seal which is arranged in this axial annular surface. If he is placed in a lower position - compare Figs. 2a and 2b - moves, an annular gap RS forms between these two axial annular surfaces 11a and 4a.
  • the piston slide 11 On an outer circumference, the piston slide 11 has a seal 13 (a sealing ring), with which the circumferential gap between the outer circumference of the piston slide 11 and the inner circumference of the lower drum part 3 is sealed.
  • a seal 13 a sealing ring
  • the upper drum part 4 also has a groove 15 on its lower axial annular surface 4a, into which a sealing ring 14 is inserted. This seals in the state in which the piston slide 11 additionally closes the annular gap RS.
  • the upper drum part 4 has at least one, two or more first wear protection elements 16 on its lower axial annular surface 4a facing the annular gap RS .
  • the drum upper part 4 has a step-like gradation or ring clearance 4b, into which these first wear protection elements 16 are inserted in a form-fitting manner.
  • the ring clearance 4b can be dimensioned and designed in such a way that the first wear protection elements 16 form an axially flush surface with the remaining part 4c of the axial annular surface 4a that is not covered by the wear protection elements 16.
  • the ring clearance 4b extends to the groove 15 into which the sealing ring 14 is inserted.
  • the first wear protection elements 16 can also be designed so that they protrude a (defined) piece radially beyond the inner edge of the upper drum part 4 into the interior of the drum 1. This means that despite the solid F being emptied, a residual amount of this solid F always remains in the drum in front of the edge described, which acts like a protective layer on the upper part of the drum 4. The solid F slides on this layer during further emptying, which reduces abrasion of the affected area in the upper part of the drum.
  • the piston slide 11 has at least one, two or more second wear protection elements 17 on its upper axial annular surface 11a facing the annular gap RS.
  • the second wear protection elements 17 can be designed so that they cover the entire axial annular surface 11a of the piston slide. You can alternatively but also be designed so that they extend radially only over part of the axial annular surface 11a and only partially cover it.
  • the piston slide has a step-like ring clearance 11b at the top with an outer peripheral edge 18 into which the second wear protection elements 17 are inserted.
  • the ring clearance 11b can be dimensioned and designed in such a way that the second wear protection elements 17 protrude axially slightly beyond the remaining partial surface 11c of the upper axial annular surface 11a of the piston slide 11, which is not covered by the wear protection elements 17. In this way, in the closed state, only the first and second wear protection elements 16, 17 lie axially against one another. In this way, the annular gap RS can continue to be closed well in this area.
  • the second wear protection elements 17 are designed here in such a way that they abut the peripheral edge 18.
  • the second wear protection elements 17 can also protrude a defined distance radially beyond the inner edge of the piston slide 11 into the interior of the drum 1. This means that despite the solid F being emptied, a residual amount of this solid F always remains in the drum in front of the edge described, which acts like a protective layer on the piston slide 11. The solid F slides on this layer during further emptying, which reduces the abrasion of the affected surface in the piston slide 11.
  • the first and second wear protection elements 16, 17 can be designed like a plate so that they can be produced inexpensively and easily assembled.
  • the first wear protection elements 16 preferably contact the second wear protection elements 17.
  • seal 14 rests on the second plate-like wear protection elements 17 and thus seals the interior of the drum 1 against the outlet opening(s) 2.
  • FIG. 2b the outlet opening(s) 2 is/are shown in an open state.
  • Two areas can be seen in the interior of the drum 1, to which solid F still adheres despite the outlet opening(s) 2 being open.
  • the solid F slides on this layer during further emptying. This is advantageous because the affected surfaces of the upper drum part 4 or the piston slide 11 are additionally protected against abrasive wear, since the adhering solid layer covers the surfaces and thereby creates an advantageous protective effect.
  • Fig. 3a alternative embodiment of the invention is shown. Different from the version according to Fig. 2a or 2b, it is provided here that (only) the second plate-like wear protection elements 17 cover the entire outlet opening-side end of the piston slide 11 or the entire axial annular surface 11a. In this case, the second plate-like wear protection elements 17 are positively secured in the radial direction by an annular shoulder 19, 20, which is formed by the piston slide 11 and the second plate-like wear protection elements 17.
  • Fig. 3b is/are the outlet opening(s) shown in an open state. Two areas can be seen in the interior of the drum 1, to which solid F still adheres despite the outlet opening(s) 2 being open.
  • This advantageous adhesion of solid F is achieved by the edges of the first plate-like wear protection element(s) 16 and the second plate-like wear protection element(s) 17 which protrude by a defined amount into the interior of the drum 1. This causes the affected surfaces of the Drum upper part 4 or the piston slide 11 are additionally protected against abrasive wear, since the adhering solid layer covers the surfaces and thereby creates an advantageous protective effect.
  • Fig. 4 1 shows how the second plate-like wear protection elements 17 are arranged along the circumference of the axial end of the piston slide 11.
  • first plate-like wear protection elements 16 which are arranged along the circumference of the upper drum part 4 (not shown here).
  • the wear protection elements In order to be able to follow the annular contour of the piston slide 11 or the upper drum part 4, the wear protection elements have the shape of circular ring segments. When lined up together, they form a circular ring. As a result, the wear protection elements 17 can advantageously be produced cost-effectively without large amounts of waste.
  • Each wear protection element 17 has abutting edges 21 together with the respective adjacent wear protection elements 17.
  • the abutting edge 21 is designed in such a way that the abutting edge 21 follows the first radial R1 starting from a tangent point T, which forms a first radial R1 with the circular arc of the circumference of the outlet opening-side end of the piston slide 11, and thus forms at least a first radial section r1.
  • the first radial section r1 is adjoined by at least a first angle section w1 which extends at an angle ⁇ to the first radial section r1.
  • each further radial section r is part of a further radial R, which runs through the respective end point E of the preceding angular section w or is a parallel to the first radial R1.
  • the abutting edge 21 follows Fig. 4 the abutting edge 21 each has three radial sections r1, r2, r3 and two angular sections w1, w2.
  • the number of radial sections r and angular sections w can also differ.
  • the length of the respective sections r, w results from the length of the abutting edge 21 and the choice of the amount and the opening direction - here clockwise Angle ⁇ and is therefore variable, with an abutting edge 21 with at least two angle sections w being preferred.
  • the abutting edge 21 therefore has an alternating arrangement of one or more radial section(s) r and angular section(s) w.
  • the respective abutting edge 21 therefore has a wavy or zigzag-like contour, in such a way that adjacent wear protection elements 17 can be lined up in a form-fitting manner.
  • the wave or zigzag shape of the abutting edge 21 also enables the abrasive solid particles to settle in the joint, which results in further advantageous protection of the abutting edge 21 from further abrasive expansion of the joint.
  • the wear protection elements 16, 17 are made of a hard, wear-resistant material. However, the choice of materials is limited with regard to the acting centrifugal forces, so technical ceramics or hard metal are preferred.
  • the wear protection elements 16, 17 are each fastened to the piston slide 11 or to the upper drum part 4 by a cohesive joining process.
  • Preferred joining methods are welding, soldering or gluing.

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  • Centrifugal Separators (AREA)

Claims (18)

  1. Centrifugeuse dans laquelle un produit de départ fluide (AP) peut être débarrassé de particules solides en fonctionnement continu dans un champ de centrifugation d'un tambour (1) en rotation, dans laquelle le tambour (1) présente une partie supérieure de tambour (4) et une partie inférieure de tambour (3) et dans laquelle la partie supérieure de tambour (4) ou la partie inférieure de tambour (3) présente une vanne à piston (11) mobile par laquelle des ouvertures de sortie (2) du tambour (1) peuvent être ouvertes ou fermées, dans laquelle un ou plusieurs éléments de protection contre l'usure sont prévus pour protéger contre une usure abrasive, caractérisée en ce qu'elle comporte une des caractéristiques a) ou b) ou les deux et la caractéristique c) :
    a) le tambour est muni de deux ou plusieurs premiers éléments de protection contre l'usure (16) sur une surface annulaire axiale (4a) de la partie supérieure de tambour (4) ou de la partie inférieure de tambours, les premiers éléments de protection contre l'usure (16) présentant la forme de segments d'anneaux de cercle, et/ou
    b) la vanne à piston (11) est munie sur une surface annulaire axiale (11a) correspondante de deux ou plusieurs deuxièmes éléments de protection contre l'usure (17), lesquels deuxièmes éléments de protection contre l'usure (17) présentent la forme de segments d'anneau de cercle,
    c) chacun des éléments de protection contre l'usure (16 et 17) formant avec un ou deux éléments de protection contre l'usure (16 ou 17) contigus un bord bout à bout (21), de sorte qu'un joint est formé entre les bords bout à bout contigus.
  2. Centrifugeuse selon la revendication 1, caractérisée en ce que le ou les premiers et/ou deuxièmes éléments de protection contre l'usure (16, 17) sont conformés de manière à couvrir toute la surface annulaire axiale (4a, 11a) du composant sur lequel ils sont disposés.
  3. Centrifugeuse selon la revendication 1, caractérisée en ce que le ou les premiers et/ou deuxièmes éléments de protection contre l'usure (16, 17) sont conformés de manière à couvrir seulement une partie de la surface annulaire axiale (4a, 11a) du composant sur lequel ils sont disposés.
  4. Centrifugeuse selon la revendication 3, caractérisée en ce que le ou les premiers et/ou deuxièmes éléments de protection contre l'usure (16, 17) sont conformés de façon à couvrir seulement une partie radiale de la surface annulaire axiale (4a, 11a) du composant sur lequel ils sont disposés.
  5. Centrifugeuse selon la revendication 2 ou 3, caractérisée en ce que le ou les premiers et/ou deuxièmes éléments de protection contre l'usure (16, 17) sont conformés de façon à couvrir seulement certaines sections du périmètre de la surface annulaire axiale (4a, 11a) du composant sur lequel ils sont disposés, de telle sorte qu'ils ne forment pas un anneau fermé sur sa circonférence.
  6. Centrifugeuse selon l'une des revendications 1 à 5, caractérisée en ce que le ou les premiers et/ou deuxièmes éléments de protection contre l'usure (16, 17) coopèrent pour former ensemble un anneau fermé sur la circonférence.
  7. Centrifugeuse selon l'une des revendications 1 à 6, caractérisée en ce que le ou les premiers et/ou deuxièmes éléments de protection contre l'usure (16, 17) sont disposés en correspondance de forme sur le composant dont ils couvrent entièrement ou partiellement la surface.
  8. Centrifugeuse selon l'une des revendications 1 à 7, caractérisée en ce que le ou les composants sont la partie supérieure de tambour (4) et/ou la vanne à piston (11) ou les deux.
  9. Centrifugeuse selon l'une des revendications précédentes, caractérisée en ce que les éléments de protection contre l'usure (16, 17) sont en forme de plaques.
  10. Centrifugeuse selon l'une des revendications précédentes, caractérisée en ce que la partie supérieure de tambour (3) présente au moins deux premiers éléments de protection contre l'usure (16) et/ou la vanne à piston (11) présente au moins deux deuxièmes éléments de protection contre l'usure (17).
  11. Centrifugeuse selon l'une des revendications précédentes, caractérisée en ce que les uns ou plusieurs joints ont une orientation radiale au moins par sections.
  12. Centrifugeuse selon l'une des revendications précédentes, caractérisée en ce que les uns ou plusieurs joints ont, par sections ou entièrement, une orientation non radiale.
  13. Centrifugeuse selon l'une des revendications précédentes, caractérisée en ce que chaque bord de joint (21) entre deux éléments de protection contre l'usure (16 ou 17) présente un contour ondulé ou en zigzag, de telle manière que des éléments de protection contre l'usure (16 ou 17) puissent être alignés en correspondance de forme.
  14. Centrifugeuse selon l'une des revendications précédentes, caractérisée en ce que les premiers éléments de protection contre l'usure (16) et les deuxièmes éléments de protection contre l'usure (17) sont conformés de telle façon qu'ils dépassent chacun d'une distance définie dans le sens radial au-delà du bord intérieur de la partie supérieure de tambour (4) ou de la vanne à piston (11) dans l'espace intérieur du tambour (1).
  15. Centrifugeuse selon l'une des revendications précédentes, caractérisée en ce que les éléments de protection contre l'usure (16, 17) sont faits d'un matériau dur et résistant à l'usure.
  16. Centrifugeuse selon l'une des revendications précédentes, caractérisée en ce que les éléments de protection contre l'usure (16, 17) sont faits de céramique technique ou de métal dur.
  17. Centrifugeuse selon l'une des revendications précédentes, caractérisée en ce que les éléments de protection contre l'usure (16, 17) sont fixés chacun sur la vanne à piston (11) ou sur la partie supérieure de tambour (4) par un procédé d'assemblage par solidarité de matière.
  18. Centrifugeuse selon l'une des revendications précédentes, caractérisée en ce qu'un paquet de disques (9) est disposé dans le tambour (1) et/ou en ce qu'il présente un axe de rotation (D) vertical.
EP19700687.7A 2018-01-18 2019-01-11 Centrifugeuse Active EP3740321B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202018100291.0U DE202018100291U1 (de) 2018-01-18 2018-01-18 Zentrifuge
PCT/EP2019/050703 WO2019141605A1 (fr) 2018-01-18 2019-01-11 Centrifugeuse

Publications (2)

Publication Number Publication Date
EP3740321A1 EP3740321A1 (fr) 2020-11-25
EP3740321B1 true EP3740321B1 (fr) 2024-01-03

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EP19700687.7A Active EP3740321B1 (fr) 2018-01-18 2019-01-11 Centrifugeuse

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EP (1) EP3740321B1 (fr)
CA (1) CA3081915A1 (fr)
DE (1) DE202018100291U1 (fr)
RU (1) RU2769126C9 (fr)
WO (1) WO2019141605A1 (fr)

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DE1869993U (de) * 1963-02-07 1963-04-04 Westfalia Separator Ag Auswechselbarer abdichtungsteil fuer kolbenschieber von selbstaustragenden schleudertrommeln.
SE407158B (sv) * 1977-08-12 1979-03-19 Alfa Laval Ab Centrifugalseparator med slamutloppsoppningar vid rotorns periferi
DK454077A (da) * 1977-10-14 1979-04-15 M Baram Ringtaetning til selvrensende slamcentrifuger
DE3240093C2 (de) * 1982-10-29 1986-03-27 Westfalia Separator Ag, 4740 Oelde Zentrifuge mit einer selbstentleerenden Schleudertrommel
DE20219551U1 (de) 2002-12-16 2004-04-29 Westfalia Separator Ag Zentrifuge, insbesondere Separator, mit Feststoff-Austrittsdüsen
DE102005049941A1 (de) 2005-10-19 2007-04-26 Westfalia Separator Ag Selbstentleerender Separator und Verfahren zu dessen Betrieb
EP2422882B1 (fr) * 2010-08-27 2013-06-19 Alfa Laval Corporate AB Séparateur centrifuge

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RU2020115546A3 (fr) 2022-02-18
WO2019141605A1 (fr) 2019-07-25
RU2769126C9 (ru) 2022-04-13
EP3740321A1 (fr) 2020-11-25
CA3081915A1 (fr) 2019-07-25
RU2020115546A (ru) 2022-02-18
RU2769126C2 (ru) 2022-03-28

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