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WO2025098870A1 - Tambour de centrifugation d'une centrifugeuse et centrifugeuse ayant un tel tambour de centrifugation - Google Patents

Tambour de centrifugation d'une centrifugeuse et centrifugeuse ayant un tel tambour de centrifugation Download PDF

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Publication number
WO2025098870A1
WO2025098870A1 PCT/EP2024/080819 EP2024080819W WO2025098870A1 WO 2025098870 A1 WO2025098870 A1 WO 2025098870A1 EP 2024080819 W EP2024080819 W EP 2024080819W WO 2025098870 A1 WO2025098870 A1 WO 2025098870A1
Authority
WO
WIPO (PCT)
Prior art keywords
drum
centrifugal drum
solids outlet
outlet opening
radially
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/EP2024/080819
Other languages
German (de)
English (en)
Inventor
Thomas Bathelt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GEA Westfalia Separator Group GmbH
Original Assignee
GEA Westfalia Separator Group GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GEA Westfalia Separator Group GmbH filed Critical GEA Westfalia Separator Group GmbH
Publication of WO2025098870A1 publication Critical patent/WO2025098870A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • 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

Definitions

  • the present invention relates to a centrifuge drum according to the preamble of claim 1 and to a centrifuge with such a centrifuge drum.
  • Centrifuges with a self-emptying drum with a vertical axis of rotation are known, for example from DE 20 2018 100 291 U1.
  • Discharge slots are incorporated into the drum shell, which radially penetrate the drum shell from the inside to the outside.
  • the piston slide of DE 20 2018 100 291 U1 is located radially inward of the drum shell and abuts against it in a raised state.
  • the circumferentially distributed discharge slots in the drum shell, which radially penetrate the drum shell have their inlet in this document radially outside the axially movable piston slide, which can release them for solids discharge in the lowered state.
  • Centrifuges with a self-emptying bowl with a vertical axis of rotation — also called self-emptying separators — are often used for the centrifugal processing of products – especially suspensions – that contain erosive particles.
  • the erosive particles are usually heavier than the clarified phase or the separated phases and thus concentrate in the separated solids, which can lead to severe erosion stresses in the area of the discharge slots in the bowl during bowl discharge.
  • EP 1 572 371 A1 proposes reducing wear on the outer surface of a separator drum with permanently open nozzle inserts, caused by product exiting the nozzle. This is achieved by using replaceable wear protection elements that are mounted on the outside of the drum, specifically in the wear-prone area.
  • US 2 695 748 shows an older prior art that provides for other wear protection inserts that are mounted radially from the outside in the wear-prone area of the drum.
  • the object of the invention is to provide a centrifuge drum in which the protective elements can be securely and easily attached to the webs and outlet openings of the centrifuge drum. Furthermore, the invention should preferably also provide improved erosion protection for the webs and outlet openings.
  • a centrifuge in particular a separator, which has a centrifugal drum according to one of the claims relating thereto.
  • a centrifuge drum with a vertical axis of rotation D wherein the centrifuge drum is intended to separate a product to be processed into a solid phase and at least one liquid phase in a centrifugal field and wherein the centrifuge drum has at least the following:
  • - a drum shell that encloses or delimits a separation chamber in which the actual centrifugal separation of the product into different phases takes place;
  • the separation chamber has a solids collection chamber radially outwardly in which the solid phase separated from the flowable product collects during the separation and/or clarification process;
  • a wear protection element is inserted radially from the inside into the respective solids outlet opening.
  • the geometry of the wear protection elements is therefore adapted to the geometry of the solids outlet openings and the corresponding bevels in the webs.
  • Another advantage is that, during assembly, the respective wear protection element can be pushed into the respective solids outlet opening (especially alone) by a radially inward-outward movement relative to the centrifugal drum and is positioned against the respective inclined recess in the web. This allows the protective elements to be securely and easily attached to the centrifugal drum, resulting in improved protection of the drum, particularly of the webs between the solids outlet openings.
  • a continuous web is formed in the drum shell and that the respective solids outlet opening has a slot-like or slit-like basic cross-section which tapers radially from the inside to the outside in the drum shell, wherein the continuous webs in the drum shell have a substantially triangular cross-section in a horizontal section and wherein the geometry of the wear protection elements inserted radially from the inside into the respective solids outlet openings corresponds substantially to the geometry of the webs.
  • a respective protective element is inserted in a form-fitting manner radially from the inside into a respective first solids outlet opening and is additionally fixed in a form-fitting manner to a second solids outlet opening adjacent in the direction of rotation or to a web delimiting the latter.
  • the respective webs can have a radially inner bevel at an angle a to the radial direction on their leading side in the direction of rotation, with the angle a preferably being between 30° and 80°.
  • the side lagging in relation to the direction of rotation can be radially oriented.
  • the respective solids outlet opening is delimited on two adjacent webs in and/or against the circumferential direction by a first, semicircular or groove-like fillet leading with respect to the direction of rotation and/or a second, semicircular or groove-like fillet trailing.
  • the bevel of the respective web with respect to the direction of rotation of the centrifugal drum and to the Solids collection chamber in the centrifugal drum runs radially outwards from a first, leading solids outlet opening to a second, trailing solids outlet opening.
  • the bevel has a first radially inner end and a second radially outer end and that the bevel of the respective web has or forms the rounding leading in the direction of rotation.
  • the respective wear protection element can be designed as a single piece. This creates a wear protection element that is easy and therefore advantageous to install.
  • the respective wear protection element has a U-shaped basic geometry, which can be easily manufactured and assembled, for example, from a sheet metal.
  • the respective wear protection element has a first leg and a second leg as well as a rounded base leg, wherein the first, here lower leg essentially covers a lower horizontal side of the respective solids outlet opening relative to a vertical axis of rotation, and the second, here upper leg essentially covers an upper horizontal side of the respective solids outlet opening, and wherein the rounded base leg engages in the semicircular or groove-like rounding of the respective solids outlet opening, which leads in the direction of rotation.
  • the solids outlet opening is well protected against wear, in particular on the sides exposed to the solids.
  • the first leg and the second leg have, at their radially inner edges in the assembled state, a radius which essentially corresponds to the outer radius of a piston slide (of the emptying system) arranged in the drum - in particular vertically movable - for opening and closing the solids outlet openings in this area.
  • the respective wear protection element with its U-shaped basic geometry follows the respective bevel starting at the radially outer end of the bevel and with its rounded web fits positively into the rounding of the bevel.
  • the groove-like base leg of the respective wear protection element engages with a hook-like end radially from the inside in a form-fitting manner in the respective rounding of the adjacent solids outlet opening on the leading web, which rounding lags behind with respect to the direction of rotation DR, which additionally secures the wear elements particularly well in the drum shell.
  • the hook-like end can then be designed in a groove-like manner and protectively covers the respective rounded portion of the respective solids outlet opening, which trails the direction of rotation DR, over part of its radial extent. In this way, this area of the solids outlet opening is also well protected against wear, while still ensuring a secure fit of the wear protection element in a simple manner.
  • the respective wear protection element is provided with a wear protection coating, either partially or completely, in order to improve the wear resistance and thus the service life of the respective wear protection element. This allows the time intervals for replacing the wear protection elements to be further extended.
  • the wear-resistant coating can also be implemented, for example, by laser welding with wear-resistant material. This creates a particularly durable wear-resistant coating with a defined layer thickness in a simple and therefore advantageous manner.
  • the centrifugal drum has an upper drum part that is at least conical on the inside and a lower drum part.
  • the piston valve can be located entirely radially inward of the drum shell.
  • it can rest against a step in the drum shell with a portion of it—e.g., upwards relative to the rotation axis (see the aforementioned DE 20 2018 100 291 U1).
  • the centrifugal drum has a product inlet pipe and a distributor
  • the separation chamber has a separation means, such as a plate pack of separation plates and at least one liquid discharge via which a liquid phase can be discharged from the centrifugal drum.
  • centrifuge with a centrifugal drum according to one of the preceding claims is also provided, wherein the centrifugal drum has a vertical axis of rotation and the centrifuge is preferably designed as a self-emptying separator.
  • Figure 1 a side view of a centrifuge drum
  • Figure 2 a partially sectioned view in a horizontal plane of a partial area of a drum lower part of the centrifugal drum from Fig. 1 with protective elements;
  • Figure 3 a sectional view in a vertical plane of the area of a solids outlet opening of a drum base of the centrifugal drum from Fig. 1 with a protective element with open solids outlet openings;
  • Figure 4 a view of the arrangement largely corresponding to Figure 3
  • Fig. 1 shows a centrifuge drum 1, which is preferably designed as a self-emptying separator.
  • the centrifuge drum 1 can have a vertical axis of rotation D, as shown in Fig. 1.
  • Not shown here are other elements of the centrifuge, such as a machine frame and a drive unit with a drive spindle.
  • the centrifuge drum 1 is preferably mounted for rotation relative to the machine frame via the drive spindle (not shown here).
  • the centrifugal drum 1 can be designed in particular for essentially continuous operation, i.e. for continuous, non-batch centrifugal processing of a flowable suspension.
  • the centrifuge can be designed as a clarification separator, which is intended to clarify a product P to be processed – usually a flowable suspension – in the centrifugal field or to separate it into a solid phase Fs and a single liquid phase Fl.
  • the centrifuge can also be designed as a separation separator, which is intended to separate a product P to be processed into two liquid phases Fl and a solid phase Fs in the centrifugal field.
  • the centrifugal drum 1 can have an upper drum part 11 and a lower drum part 12. These drum parts 11, 12 can be connected to one another in various ways, for example, with a locking ring.
  • the upper drum part 11 and the lower drum part 12 are preferably made of steel.
  • the upper drum part 11 and the lower drum part 12 together define or form a separation chamber 13.
  • the centrifugal drum 1 can be single- or double-conical (externally and/or internally).
  • the upper drum section 11, as shown in Fig. 1 is conical on the outside and inside in sections, or in this case, in the shape of a truncated cone.
  • the lower drum section 12 is essentially cylindrical on the outside.
  • the lower drum section 12 can also be cylindrical on the inside in sections and otherwise conical on the inside.
  • the upper drum section 11 and the lower drum section 12 thus form a drum shell 14 (see Fig. 2) of the centrifugal drum 1.
  • This shell has an inner circumference and an outer circumference.
  • a distributor (not shown here) for supplying product from a product inlet pipe (also not shown here) can be arranged in the centrifugal drum 1.
  • the product P flows from the product inlet pipe into the distributor (also not shown). In the distributor, the product P is transferred into the rotating system and the separation chamber 13.
  • a hood (not shown here) can surround the centrifugal drum 1. It can be arranged on the machine frame and supported by it.
  • the separation chamber 13 preferably has a separation means such as a stack of separation discs (not shown here).
  • the separation chamber 13 also has a solids collection chamber 15 radially outside the separation means, in which the solids separated from the suspension or the flowable product P collect as the solid phase Fs during the separation and/or clarification process.
  • the centrifuge 1 can have a single liquid discharge (not shown here), via which a liquid phase Fl can be discharged from the centrifuge drum 1.
  • the liquid discharge can be designed as a so-called paring disc, which operates as a centripetal pump.
  • the liquid discharge can also be realized in another way.
  • more than one liquid phase Fl can be discharged, for which purpose the centrifuge drum 1 must then be provided with a corresponding further discharge system (e.g. with a further paring disc and a separating plate for supplying a further liquid phase Fl to this paring disc, both not shown).
  • a discharge system (not fully shown here, see Fig. 2) may be provided, which may be fluid-actuated or electromechanically actuated.
  • the discharge system for the solid phase Fs may comprise a piston valve 16 (not shown in Fig. 1, see Figs. 2, 3, 4), which is moved for a discharge process of the solid phase Fs (compare Figs. 3 and 4).
  • the discharge system may also operate according to a different operating or functional principle.
  • the emptying system – here by movements of the piston valve 16 – releases and opens several solids outlet openings 17, which are circumferentially distributed in the drum shell of the centrifugal drum 1 and penetrate it from the inside to the outside.
  • the piston valve 16 can be located entirely inside the drum shell. However, it can also be located with a portion of it—e.g., upwards relative to the rotation axis—against a step in the drum shell (see the aforementioned DE 20 2018 100 291 U1). Even then, it is located radially inside the discharge slots or solids discharge openings that radially penetrate the drum shell.
  • the solids outlet openings 17 are preferably arranged in the region of the largest inner diameter of the centrifugal drum 1. They can be provided in the lower part of the drum, but if the centrifugal drum has a different design, they can also be provided in the upper part of the drum.
  • FIG. 2 some of the solids outlet openings 17 are shown as examples in a partial perspective view and in a section-like manner, wherein the section can in particular run through a horizontal center plane of the solids outlet openings 17.
  • the centrifuge drum 1 rotates around its vertically oriented axis of rotation D in the direction of rotation DR, which corresponds to a clockwise direction.
  • the respective solids outlet openings 17 extend through the drum shell 14.
  • a web 18 extending radially from the inside to the outside, which here is formed by the drum shell 14 of the drum base 12.
  • the respective solids outlet opening 17 preferably has—in the side view of Fig. 1—a slot-like or slit-like basic cross-section (see also Fig. 1).
  • the slot-like or slit-like basic cross-section of the respective solids outlet opening 17 is delimited in the region of the smallest cross-section in the circumferential direction and counter to the circumferential direction by a radial line R1, R2.
  • the radial R1 lies here with respect to the direction of rotation DR of the centrifugal drum 1 at the leading boundary of the respective solids outlet opening 17 and the radial R2 lies with respect to the direction of rotation DR of the centrifugal drum 1 at the trailing boundary of the respective solids outlet opening 17.
  • the boundary in the radial direction of the respective solids outlet opening 17 is formed here by a first - with respect to the direction of rotation DR - leading, semicircular and groove-like fillet 171a and a second lagging, semicircular and groove-like fillet 171b. These fillets correspond to the corresponding leading and trailing side wall contours of the webs 18 in the direction of rotation.
  • the radially inner side of the respective web 18 has a bevel at an angle a to the radial R2, so that the web runs counter to the direction of rotation DR.
  • the angle a is preferably between 30° and 80°.
  • the respective web 18 forms a radially inner bevel 181 with respect to the centrifugal drum 1.
  • the bevel 181 of the respective web 18 can, for example, with respect to the direction of rotation DR of the centrifugal drum 1 - which here corresponds to the clockwise direction - and to the solids collecting chamber 15 in the centrifugal drum 1, from a radially inner end region of a respective first, leading solids outlet opening 17a to the radially outer end region of a respective second, trailing solids outlet opening 17b (see also the radials R2, R1).
  • the bevel 181 also has a first radially inner end 1811 and a second, radially outer end 1812.
  • the bevel 181 of the respective web 18 thus designs the respective solids outlet opening 17 in such a way that solids Fs are ejected from the centrifugal drum 1 obliquely with a tangential component with respect to the direction of rotation DR of the centrifugal drum 1 and not directly radially to the outer circumference of the drum base 12.
  • a respective protective element 200 is inserted in a form-fitting manner radially from the inside into a respective first solids outlet opening 17b and, particularly preferably according to a design variant, can also be fixed in a form-fitting manner radially on the inside to an adjacent second solids outlet opening 17a, which leads in the direction of rotation (see Fig. 2).
  • the respective wear element 200 is preferably made of a metallic material, particularly preferably of steel or hard metal. It can be made of a stamped and bent sheet metal, but it can also be manufactured using another manufacturing process.
  • the bevel 181 thus has a corresponding groove-like rounding 182.
  • the respective bevel 181 can furthermore have a first vertically extending arcuate fillet 183 and, at its radially outer end 1812, a second radially outer arcuate fillet 184 towards the second solids outlet opening 17b, which lags behind in relation to the direction of rotation DR.
  • the respective wear protection element 200 is preferably designed in one piece and has a U-shaped basic geometry, wherein the “U” is rotated by 90° in the assembled state of the respective wear protection element 200 and the opening of the “U” is directed against the direction of rotation DR (see Fig. 2).
  • the respective wear protection element 200 has a first leg 201 and a second leg 202, as well as a rounded or arcuate base leg 203 connecting the two legs.
  • the two legs 201, 202 of the respective wear protection element 200 each have their greatest extent in the radial direction at the radially outer end 1812 of the respective bevel 181.
  • the first, here lower and horizontal leg 201 essentially covers a first, here lower side 172 of the respective solids outlet opening 17, and the second, here upper and also horizontal leg 202 essentially covers a second, here upper side 173 (see Fig. 3) of the respective solids outlet opening 17.
  • the base leg 203 can be rounded like a groove so that the solids can slide along it easily when ejected from the centrifugal drum.
  • the wear protection elements extend radially to just before the outer circumference of the drum shell, i.e. they end just before this outer circumference.
  • the respective wear protection element 200 follows with its groove-like base leg 203 the respective bevel 181, starting at the radially outer end 1812 of the bevel 181 and lies with its groove-like base leg 203 in a form-fitting manner in the corresponding groove-like fillet 182 of the bevel 181.
  • the two legs 201, 202 of the wear protection element 200 each end at the radially inner end 1811 of the respective bevel 181 or run out there, so that they do not project radially inward into the solids collection chamber 15. Only the groove-like base leg 203 of the respective wear protection element 200 is continued, which fits positively against the radially inner end 1811 of the respective bevel 181 on the respective first vertically extending fillet 183.
  • the groove-like base leg 203 is inserted into the respective rounded portion 171 b of the respective solids outlet opening 17 which is closest in the circumferential direction, so that it forms a hook-like end 204.
  • the hook-like end 204 can be provided to engage in a form-fitting manner with the respective rounded portion 171b of the respective solids outlet opening, which is trailing with respect to the direction of rotation DR, which additionally secures the wear elements particularly well in the drum shell.
  • the hook-like end 204 can then also be designed in a groove-like manner and cover the respective rounded portion 171b of the respective solids outlet opening 17, which is trailing with respect to the direction of rotation DR, in a protective manner, either entirely or over part of its radial extent.
  • the respective wear protection element 200 is inserted in a form-fitting manner radially inward into the respective solids outlet opening 17.
  • the geometry of the wear protection elements 200 is accordingly adapted to the geometry of the solids outlet openings 17 and the associated bevels 181 in the webs 18. This means that, during assembly, the respective wear protection element 200 can be easily pushed from the radial inside into the respective adjacent two solids outlet openings 17 with respect to the centrifugal drum 1 and is placed against the respective beveled recess 181 of the web 18.
  • the respective wear protection element 200 After insertion, the respective wear protection element 200 is positively secured. Since it is pressed radially outward by centrifugal force during operation, it adheres particularly well to the inside of the drum shell in the area of the respective web. It is also held in position by the piston slide. Additional fastening or securing of the respective wear protection element 200 radially outward by means of tabs protruding radially from the drum and bent there, by gluing, or the like, is therefore not required, although it is conceivable as an option.
  • the positive fixation of the respective wear protection element 200 simplifies assembly and also protects the adjacent solids outlet opening. Furthermore, the positive fixation enables easy replacement of the wear protection elements 200.

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  • Centrifugal Separators (AREA)

Abstract

L'invention concerne un tambour de centrifugation (1) d'une centrifugeuse dotée d'un axe de rotation vertical (D), le tambour de centrifugation (1) étant destiné à séparer un produit (P) pour un traitement en une phase solide (Fs) et en au moins une phase liquide (FI) dans un champ centrifuge, et le tambour de centrifugation (1) comprenant au moins ce qui suit : a) une cuve de tambour (14) qui renferme un espace de séparation (13), dans lequel la séparation centrifuge réelle du produit (P) a lieu ; b) radialement sur l'extérieur de l'espace de séparation (13) se trouve un espace d'accumulation de solides (15), dans lequel la phase solide (Fs) séparée du produit (P) apte à s'écouler s'accumule pendant l'opération de séparation et/ou de clarification ; c) un système de refoulement pour le refoulement de la phase solide (Fs) à partir de l'espace d'accumulation de solides (15) du tambour de centrifugation (1), d) pendant que les solides sont refoulés, de multiples ouvertures de sortie de solides (17) réparties de manière circonférentielle autour de la cuve de tambour du tambour de centrifugation (1) et traversant la cuve de tambour radialement de l'intérieur vers l'extérieur peuvent être ouvertes, e) un élément de protection contre l'usure (200) étant inséré par complémentarité de forme radialement depuis l'intérieur dans l'ouverture de sortie de solides (17) respective.
PCT/EP2024/080819 2023-11-07 2024-10-31 Tambour de centrifugation d'une centrifugeuse et centrifugeuse ayant un tel tambour de centrifugation Pending WO2025098870A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202023106479.5 2023-11-07
DE202023106479.5U DE202023106479U1 (de) 2023-11-07 2023-11-07 Schleudertrommel einer Zentrifuge und Zentrifuge mit einer solchen Schleudertrommel

Publications (1)

Publication Number Publication Date
WO2025098870A1 true WO2025098870A1 (fr) 2025-05-15

Family

ID=93376114

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2024/080819 Pending WO2025098870A1 (fr) 2023-11-07 2024-10-31 Tambour de centrifugation d'une centrifugeuse et centrifugeuse ayant un tel tambour de centrifugation

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Country Link
DE (1) DE202023106479U1 (fr)
WO (1) WO2025098870A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2695748A (en) 1952-01-22 1954-11-30 Merco Centrifugal Co Centrifuge nozzle construction
DE959537C (de) * 1952-11-18 1957-03-07 Separator Ab Anordnung der Duesen bei Duesenzentrifugen
US5244584A (en) * 1991-02-21 1993-09-14 Kloeckner-Humboldt-Deutz Ag Centrifuge with wear resistant outlet openings
EP1572371A1 (fr) 2002-12-16 2005-09-14 Westfalia Separator AG Centrifugeuse, en particulier separateur, pourvue de buses de sortie pour matieres solides et d'une protection contre l'usure
KR101321078B1 (ko) * 2013-07-19 2013-10-23 (주)이화에코시스템 마찰력 저감 및 토출 구경 가변형 다중부시를 가진 원심분리기
DE202018100291U1 (de) 2018-01-18 2018-03-07 Gea Mechanical Equipment Gmbh Zentrifuge
US20190099763A1 (en) * 2016-03-24 2019-04-04 Fluid-Quip, Inc. Centrifuge rotor with staggered nozzles for use in a disc nozzle centrifuge

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2695748A (en) 1952-01-22 1954-11-30 Merco Centrifugal Co Centrifuge nozzle construction
DE959537C (de) * 1952-11-18 1957-03-07 Separator Ab Anordnung der Duesen bei Duesenzentrifugen
US5244584A (en) * 1991-02-21 1993-09-14 Kloeckner-Humboldt-Deutz Ag Centrifuge with wear resistant outlet openings
EP1572371A1 (fr) 2002-12-16 2005-09-14 Westfalia Separator AG Centrifugeuse, en particulier separateur, pourvue de buses de sortie pour matieres solides et d'une protection contre l'usure
KR101321078B1 (ko) * 2013-07-19 2013-10-23 (주)이화에코시스템 마찰력 저감 및 토출 구경 가변형 다중부시를 가진 원심분리기
US20190099763A1 (en) * 2016-03-24 2019-04-04 Fluid-Quip, Inc. Centrifuge rotor with staggered nozzles for use in a disc nozzle centrifuge
DE202018100291U1 (de) 2018-01-18 2018-03-07 Gea Mechanical Equipment Gmbh Zentrifuge

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