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WO2010097327A1 - Centrifugeuse à vis à bol plein, avec passage des substances grossières dans un disque de retenue - Google Patents

Centrifugeuse à vis à bol plein, avec passage des substances grossières dans un disque de retenue Download PDF

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Publication number
WO2010097327A1
WO2010097327A1 PCT/EP2010/052057 EP2010052057W WO2010097327A1 WO 2010097327 A1 WO2010097327 A1 WO 2010097327A1 EP 2010052057 W EP2010052057 W EP 2010052057W WO 2010097327 A1 WO2010097327 A1 WO 2010097327A1
Authority
WO
WIPO (PCT)
Prior art keywords
baffle plate
screw
vollmantel
drum
centrifuge according
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.)
Ceased
Application number
PCT/EP2010/052057
Other languages
German (de)
English (en)
Inventor
Klaus Klinger
Robert Wagenbauer
Norbert NÖBAUER
Heinz Solscheid
Reinhold Schilp
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.)
Hiller GmbH
Original Assignee
Hiller 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 Hiller GmbH filed Critical Hiller GmbH
Publication of WO2010097327A1 publication Critical patent/WO2010097327A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
    • 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
    • B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
    • B04B2001/2041—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl with baffles, plates, vanes or discs attached to the conveying screw

Definitions

  • the invention relates to a solid bowl centrifugal centrifuge for solid - liquid separation of media according to the preamble of claim 1.
  • Solid bowl centrifuges are composed of a rotating, cylindrical and conical drum, a coaxial with the drum axis screw conveyor, which rotates at a differential speed to the drum and for the axial transport of the heavier phase, an axial feed tube for the feedstock to be separated and various outlet ports for the separate phases.
  • the effectiveness of the separation of the different phases of a treated in the solid bowl centrifuge centrifugal suspension is highly dependent on the difference of the densities of the individual phases, the multiple of gravitational acceleration by the radial centrifugal force, the avoidance of remixing of the separated phases and the trouble-free supply and Removal of the phases.
  • a particular problem with solid bowl centrifuges is the separation of liquids with components of approximately equal density, with the separated heavier phase having a muddy consistency.
  • Such liquids such as wastewater, must be separated into a lighter, liquid phase and a dry, heavier phase as possible.
  • these two phases do not separate clearly.
  • An aqueous layer is formed radially inwardly, which is interspersed with increasing radius further outward with more and more solid particles and near the inner wall of the drum has the highest solids concentration.
  • Sludge dewatering should be carried out in addition to the clarified liquid only the near the drum concentrated, dry as possible solid phase.
  • baffle plates in the separation space, which divide the process space axially into individual sections.
  • separating baffle plates in addition to the foreclosure of the sections and a Aufstau bin the individual phases is effected.
  • the axial transport of the individual phases from one separation space to the next is greatly influenced by the baffle plates.
  • Such jacketed centrifugal solid bowl centrifuges are known in the art.
  • baffle plates show various forms of baffle plates.
  • the baffles are shown as cylindrical, flat circular discs with a constant gap to the drum inner contour. Also frusto-conical shaped bluff body with a gap to the drum inner contour are described. Instead of circular disks and baffles that completely shut off a screw channel with a predetermined gap to the drum inner contour are shown.
  • WO97 / 22411 which is based on the wording of the preamble of claim 1, is a decanter centrifuge with a coiled baffle plate, which has a constant gap on the outer circumference to the drum wall and thus does not allow Grobstoff mallass.
  • the invention has the object to eliminate the above-described problems and despite narrow columns of the baffle plate and coarse body through the gap to pass through and to prevent their accumulation in the solid bowl screw centrifuge.
  • the deposited solid phase is most compacted near the inner wall of the drum by the centrifugal acceleration.
  • the goal is given to achieve the separation as completely as possible, ie to achieve as far as possible dewatered solid cake and a good clarification.
  • the outermost layer of the solids layer is forced through the outer narrow baffle gap by the screw on a built-in baffle plate. The overlying, moister solid layers or the separated liquid are shut off by the baffle plate.
  • the Vollmantel- screw centrifuge with built-in baffle plate with the suspension and individual coarse materials fed they must also be able to pass the baffle plate according to the invention.
  • the coarse materials are transported from the spiral helix to the baffle plate and pressed against the baffle plate.
  • a high pressure builds up in the conveying direction in the gusset area, which causes the outermost layer of the solid layer in this area to bulge much more thickly in the radial direction than in the remaining centrifuge drum.
  • the gap of the baffle plate in the radial direction in this area can be made much larger, without the baffle plate losing the sealing effect for the liquid.
  • the gap width can not only be made much larger in the outer region of the baffle plate, it can be provided there in the baffle plate even a larger opening, which also coarse materials can pass the baffle plate and do not get caught in the centrifuge and accumulate there, as experiments have shown.
  • enlarged gap coarse material and the upset thick matter can flow through together without the baffle plate loses the seal for the liquid lying inside.
  • the registered coarse materials are not retained by the baffle plate, they are discharged from the centrifuge again;
  • the coarse matter or foreign bodies are not enriched in the centrifuge
  • the worm torque becomes smaller
  • the measure can be retrofitted
  • the measure is very inexpensive
  • the optimal gap width of the baffle plate is self-regulating
  • an opening is not in the baffle plate but in the worm gear.
  • the wedged coarse material can pass through this opening and flow back into the separation space, it does not pass through the baffle plate, does not leave the centrifuge and therefore accumulates more and more in front of the baffle plate. It creates large imbalances, which disrupt the separation process and destroy the centrifuge.
  • FIG. 1 is a schematic longitudinal section through a Volfmantelschneckenzentrifuge with a
  • FIG. 3 shows the track diagram of FIG. 2 of the worm helix developed in the plane, according to the prior art
  • Fig. 4 shows a part of the screw designed according to the invention with helically wound
  • FIG. 5 shows the track diagram to FIG. 4 of the helical spirals unwound in the plane, with a spiral baffle plate, FIG.
  • Fig. 6 shows a cross section through the drum and screw with a view of the baffle plate of FIG.
  • Fig. 8 shows a cross section through the drum, screw and baffle plate with lateral opening on
  • Fig. 9 shows the track diagram to Fig. 8 of the unwound in the plane screw flights and the plane
  • Fig. 10 is a partial cross-section through the drum and screw with a view of the rear
  • Transverse wall of the baffle plate with a very large discharge opening, which is covered with an elastic lid, 11 is a partial cross-section through the drum and screw with a view of the rear end of the flat baffle plate with lateral gap extension and coarse emergency exit in the transverse wall, covered with resilient blades,
  • Fig. 14 shows a part of the screw with steep helical spiral baffle plate over two
  • FIG. 15 shows the track diagram of FIG. 14 of the helical spiral windings unwound in the plane
  • Fig. 16 shows a part of the screw with an obliquely, the Wendelgang shut off
  • FIG. 17 shows the track diagram for FIG. 16 of the worm spirals unwound in the plane with beveled baffles.
  • Fig. 1 shows a schematic longitudinal section through a solid bowl screw centrifuge with a drum 1, which rotates about the horizontal axis of rotation.
  • the drum 1 in the housing is mounted in two bearings 2, which are mounted on a base frame.
  • the drum 1 is driven evenly.
  • Within the drum 1 there is a coaxial to her transport screw 4 with spiral screw flights 5 and a feed chamber 6 in the cylindrical region.
  • Via a hydraulic motor 7 or via a gearbox mounted in the drum 1 screw 4 is driven at a differential speed to the drum 1 with a variable speed differential.
  • the solids-containing suspension 9 to be treated passes through an inlet pipe 10 into the drainage chamber 6 and from there through openings in the rapidly rotating separation space 11 between the screw conveyor 4 and the drum 1.
  • the separated, clarified liquid 12 flows through openings with adjustable weir plates 13, on the right side of the cylindrical conical drum 1, the sedimented and compacted solid 14 is transported by the screw flights 5 to the ejection openings 15 and thrown there into the solids housing. From the discontinued by the inlet chamber 6 suspension 9th The solids 14 settle on the inner wall of the drum 1 and are pushed by the worm 4 because of their differential speed relative to the drum 1 continuously to the right to the installed baffle plate 16.
  • the baffle plate 16 seals the inner liquid 12 in the left separation region to the right and leaves only the outside of the baffle plate 16 near the drum 1 through a narrow gap 17 the sedimented and most compacted solid 14 through the right part, the discharge of the solids discharge 15th
  • a part of the screw 4 is shown with a baffle plate 16 according to the prior art.
  • the left separation region is hermetically sealed from the right liquid discharge region 15 near the screw tube 8.
  • the baffle plate 16 seals in the interior of the pond depth of the separation space 11 from the spiral path between two coils 5 from. It remains for the further transport and passage of the solid 14, only a narrow gap 17 between the outer contour of the baffle plate 16 and the inside of the drum 1, through which the solid 14 to be discharged is squeezed.
  • the forces for crushing through the solid 14 produces on the one hand the continuous transport coil 5 on its outer contour, on the other hand, by the smaller adjustable radius of the liquid level 12 in the separation space left of the baffle plate 16 against the larger radius of the solids discharge 15 right of the baffle plate 16, a pressure difference exists that strongly supports squeezing through the narrow gap 17. It suffice a few millimeters height difference of the two pond depths to produce at a centrifugal field strength of several thousand x g an effective delivery pressure of several bar.
  • the baffle plate 16 welded to the screw flights 5 and to the screw tube 8 leaves only a narrow gap 17 open towards the drum 1 and does not allow a higher solids layer or larger coarse materials to pass through.
  • FIG. 3 the track diagram 19 of the developed in the plane screw flight 5 according to the prior art to Fig. 2 is shown.
  • the transported coarse material 20 are enriched in front of the baffle plate 16 and form in the conveying direction 21 in particular in the wedge-shaped gusset 22 between the baffle plate 16 and sliding coil 5 a very disadvantageous, squeezed solid wedge 23.
  • the gap 17 outside of the baffle plate 16 should be as close as possible, to pass only dry and compacted solid 14, on the other hand, the narrow gap 17 should still have a large passage area, so as not to affect the capacity of the centrifuge and also pass coarse material 20.
  • baffle plate 16 with larger passage opening 25 at the rear transverse wall 26 shows a portion of the screw 4 with a spiral-shaped baffle plate 16 with larger passage opening 25 at the rear transverse wall 26.
  • the baffle plate 16 with narrow gap 17 extends almost over the entire circumferential length of the screw 4. In spite of the narrow gap 17th To achieve an even larger passage opening, the baffle plate 16 could be led around more than a full helical turn. At the end of the shut-off baffle plate 16, this is angled towards the screw helix 5 and welded there.
  • FIG. 5 shows the track plan for FIG. 4 of the spiral flights 5 and the slightly spiral baffle plate 16.
  • the gap width 17 is increased.
  • the higher solids layer 14 in the narrowest wedge-shaped gusset zone 22 also seals the larger opening 25 against the inner liquid 12. It is essential here that the enlarged opening 25 of the gap 17 between the helical baffle plate 16 and the inner wall of the drum 1 is in the region of the largest coarse material jam, namely at the end of the wedge-shaped gusset zone 22 between the delivery side of the helix 5 and the baffle plate sixteenth
  • Fig. 6 is a cross section through the drum 1 and screw 4 with a view of the baffle plate 16 of FIG. 4 is shown.
  • the welded to the helix 5 final transverse wall 26 may be angled or rounded in the radial direction at 31 to squeeze the pent-up thick matter 14 or the coarse material 20 in the conveying direction 21 through the enlarged gap opening 25 easier.
  • the transverse wall 26 may also be welded at an angle so that it pushes the pent-up solid 14 radially towards the drum 1 in the conveying direction 21.
  • the liquid 12 which is present further inside can not flush the, for example, concentric baffle gap 17.
  • the baffle plate 16 has on the entire circumferential length a narrow gap 17 to the drum 1, in the end can still larger coarse 20 and pent-up thick matter 14 the final Transverse wall 26 of the baffle plate 16 pass through the enlarged gap opening 25.
  • Fig. 8 which shows a cross section through the drum 1 and screw 4 with a view of the baffle plate 16
  • the discharge for the backlog of the solid layer 14 in the wedge-shaped narrowing zone 22 in front of the baffle plate 16 also through a lateral opening 25th take place at the end of the baffle plate 16.
  • the intersection of the welded baffle plate 16 with the screw helix 5 can be done as shown by a short transverse wall 26, which is executed kinked or tangent to the screw tube 8 in a straight line or in a curved line 31.
  • FIG. 9 shows the associated track diagram 19 of the helical spirals 5 developed in the plane with the flat baffle plate 16 and the enlarged opening 25 at the end. Due to the radial enlargement of the gap width 17 in the narrowest wedge-shaped conveying region 22, a pressure relief is effected. The contents of the pent-up solid wedge 14 or coarse material 20 in the gusset 22 can flow through the enlarged opening 25 in the baffle plate 16.
  • FIG. 10 shows a partial cross section through the drum 1 and screw 4 with a view of the rear transverse wall 26 of the baffle plate 16 with a very large discharge opening 27, which is covered with an elastic cover 28.
  • the solid matter 14 accumulated radially at the end of the baffle plate 16 in the gusset region 22 will flow off through the enlarged gap width 25 in the transverse wall 26.
  • the elastic cover 28 is pressed as far as necessary and closes after passing through the coarse body 20 by its large weight in the centrifugal field by itself.
  • the lid 28 can be used as a rigid flap be carried out with hinge attachment or of flexible elastic material which is fixed on its inner side to the baffle plate 16.
  • Fig. 11 is a partial cross section through the drum 1 and screw 4 is shown with a view of the rear end of the baffle plate 16.
  • the baffle plate 16 has at its lateral end 22 an enlarged gap width 25, as was shown in Fig. 8 and Fig. 9.
  • the lateral enlargement 25 of the gap 17 at the gusset 22 may be incorporated into the baffle plate 16 itself.
  • the enlargement 25 can also be located in a cover 28 similar to that shown in FIG. 10 for the passage of even larger coarse bodies 20. If the gap width enlargement 25 at the end 22 of the baffle plate 16 is no longer sufficient for the passage of accumulated material 14, 20, the cover 29 mounted in the rear transverse wall 26 opens as far as necessary to ensure the passage.
  • baffle plate 10 is an automatically controlling baffle plate opening.
  • the existing example of individual leaf spring elements cover 29 has the function of a self-controlling, variable gap width 30 of the baffle plate 16.
  • a so equipped baffle plate 16 adapts to the requirements in the centrifuge and the changing conditions in the inlet 9 itself.
  • Fig. 12 is a partial cross section through the drum 1 and screw 4 is facing the rear end of the flat baffle plate 16 is shown.
  • the baffle plate 16 has in the gusset 22 at its end laterally an enlarged gap width 25, as was also shown in FIGS. 8 and 9.
  • the enlargement 25 of the gap 17 may be incorporated into the baffle plate 16 itself, but it may also be in a laterally mounted, resilient cover 28 for the passage of larger coarse bodies 20. If the gap enlargement 25 at the end of the baffle plate 16 is no longer sufficient for the passage, the laterally attached, resilient cover 28 opens as far as necessary to allow the passage of accumulated material 14, 20.
  • the side cover 28 may be a rigid lid suspended from a hinge, but may also be made of elastic material attached to the baffle plate on two sides.
  • the elastic lid 28 opens only at its outer edge so much that accumulated material 14, 20 can leave the gusset 22. The further inside liquid 12 can not flow through. If properly dimensioned, the principle is self-controlling.
  • adjustable baffle plate 16 In Fig. 13 in the gap width 17, 25 adjustable baffle plate 16 is shown.
  • the radial enlargement 25 of the gap width 17 at the gusset 22 of the baffle plate 16 can be adjusted without the worm 4 having to be dismantled with baffle plate 16.
  • a cover 24 in the centrifuge drum 1 allows access and adjustment to smaller or larger opening 25 at the gusset 22.
  • the adjustment of the orifice plate opening 25 may be provided laterally on the baffle plate 16 or at the rear transverse wall 26.
  • a counterweight 30 is attached to the Verstellbrende.
  • Combinations of adjustable diaphragm 30 and elastic cover 28, 29 may also be mounted on the baffle plate 6.
  • FIG. 14 shows a part of the screw 4 with a very steeply spiraled baffle plate 16 over two slopes of the coils 5.
  • the baffle plate 16 is not, as shown in Figures 2 to 9, seen in the conveying direction 21, beginning at the right helix 5 and in the Track view Fig. 15 ending behind the left helix, but the baffle plate 16 is a mirror image of the left helix 5 starting executed. This causes the baffle plate
  • the wedge effect for the solid 14 is less, the incoming coarse 20 is pushed along the spiral baffle 16 on the passive back 33 of the coil 5.
  • the formation of a wedge-shaped gusset 22 with its pressing action is thereby avoided.
  • the coarse material 20 can pass the baffle plate 16 through the opening 25 of the enlarged gap 17 at the end of the baffle plate 16.
  • the gap width 17 of the baffle plate 16 seen in the conveying direction 21 of the solid 14 have a constant height; However, the height of the gap 17 may also increase gradually from the beginning to the end of the baffle plate 16 and end with a largest opening 25 as Grobstoff trimlass.
  • the outer radius of the baffle plate 16 is gradually reduced, whereby the gap 17 increases.
  • the embodiment in FIG. 14 is disadvantageous because the baffle plate 16 extends axially over two pitches of the coils 5.
  • a portion of the screw 4 is shown with an obliquely, the channel between two coils 5 shut-off baffle 34.
  • the baffle 34 may extend into the cone region of the drum 1.
  • the baffle 34 has, for example, an outer, uniform gap 17 and a larger passage opening 25 on the rear baffle wall next to the active screw flight 32.
  • the dust lech 34 may be designed as a flat sheet metal barrier or as a bent or curved sheet 35 with outer gap 17 and relief opening 25.
  • the baffle plate 36 may also be kinked or bent several times, as shown in Fig. 17 on the left. Viewed in the direction of movement 37, the relieving splitting extension can take place at the rearmost point through an opening 25 for the coarse material 20 to be passed through in order to avoid disturbances.

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  • Centrifugal Separators (AREA)

Abstract

L'invention concerne une centrifugeuse à vis à bol plein, utilisée pour la séparation de suspensions en au moins deux phases, comprenant des dispositifs d'amenée et des ouvertures d'évacuation pour les phases liquide et solide, avec un tambour rotatif (1) et une vis de transport (4) rotative montée coaxialement dans le tambour (1), qui tourne avec une différence de vitesse de rotation par rapport au tambour (1) et dont le tube (8) est équipé d'un filet hélicoïdal (5) et d'au moins un disque de retenue (16) avec une fente vers le tambour (1). Selon l'invention, il est prévu que le disque de retenue (16) prenne la forme d'une hélice et présente au moins une ouverture de fente agrandie (25) permettant un passage des matières accumulées par la fente et qui est ménagée au niveau d'une jonction (22) où se rejoignent le disque de retenue (16) et le filet hélicoïdal (5).
PCT/EP2010/052057 2009-02-20 2010-02-18 Centrifugeuse à vis à bol plein, avec passage des substances grossières dans un disque de retenue Ceased WO2010097327A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009001054.8 2009-02-20
DE102009001054A DE102009001054A1 (de) 2009-02-20 2009-02-20 Vollmantel-Schneckenzentrifuge mit Grobstoff-Auslass

Publications (1)

Publication Number Publication Date
WO2010097327A1 true WO2010097327A1 (fr) 2010-09-02

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PCT/EP2010/052057 Ceased WO2010097327A1 (fr) 2009-02-20 2010-02-18 Centrifugeuse à vis à bol plein, avec passage des substances grossières dans un disque de retenue

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DE (1) DE102009001054A1 (fr)
WO (1) WO2010097327A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102824966A (zh) * 2012-07-31 2012-12-19 天圣环保工程（成都）有限公司 一种螺旋推料器及其应用的卧螺离心机
CN106622686A (zh) * 2015-08-26 2017-05-10 苏州瑞威离心分离技术有限公司 一种卧螺离心机
CN110252011A (zh) * 2019-07-17 2019-09-20 佛山市科屹五金电子有限公司 一种渣浆分离装置
EP4563233A1 (fr) * 2023-11-30 2025-06-04 Alfa Laval Corporate AB Centrifugeuse décanteuse pour séparer la matière d'alimentation
WO2025114493A1 (fr) * 2023-11-30 2025-06-05 Alfa Laval Corporate Ab Décanteur centrifuge pour séparer un matériau d'alimentation

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117019418B (zh) * 2023-10-08 2023-12-08 山东泰普锂业科技有限公司 一种卧式螺旋沉降离心机

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US3795361A (en) 1972-09-06 1974-03-05 Pennwalt Corp Centrifuge apparatus
US3934792A (en) 1975-01-03 1976-01-27 Pennwalt Corporation Centrifuge apparatus
US4245777A (en) 1979-08-30 1981-01-20 Pennwalt Corporation Centrifuge apparatus
US4381849A (en) 1981-06-29 1983-05-03 Bird Machine Company, Inc. Solids-liquid slurry separating centrifuge
US4731182A (en) 1985-11-18 1988-03-15 Decanter Pty. Limited Decanter centrifuge
DE4119003A1 (de) * 1991-06-08 1992-12-10 Kloeckner Humboldt Deutz Ag Schneckenzentrifuge
WO1997022411A1 (fr) 1995-12-18 1997-06-26 Alfa Laval Separation A/S Decanteuse-centrifugeuse
DE19949194A1 (de) * 1999-10-13 2001-04-26 Flottweg Gmbh Vollmantelschneckenzentrifuge mit einem Stauwehr
WO2002005966A2 (fr) 2000-07-14 2002-01-24 Alfa Laval Inc. Decanteuse-centrifugeuse presentant une chicane pour des materiaux solides de phase lourde
DE10125096A1 (de) 2001-05-23 2002-11-28 Hiller Gmbh Dekantierzentrifuge
WO2005084814A1 (fr) * 2004-03-09 2005-09-15 Alfa Laval Copenhagen A/S Centrifugeuse permettant de separer un liquide amene comprenant une emulsion de deux phases liquides de densites differentes en une phase liquide legere et une phase liquide lourde
EP1949966A1 (fr) 2007-01-26 2008-07-30 Westfalia Separator GmbH Centrifugeuse à vis sans fin à bol plein dotée d'une chicane de mesure

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1432837U (fr)
DE20211101U1 (de) * 2002-07-23 2003-12-04 Winkelhorst, Stephan Schneckenzentrifuge
SE525413C2 (sv) * 2003-06-18 2005-02-15 Alfa Laval Corp Ab En skruvtransportör för en dekantercentrifug

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3795361A (en) 1972-09-06 1974-03-05 Pennwalt Corp Centrifuge apparatus
DE2344507A1 (de) 1972-09-06 1974-03-14 Pennwalt Corp Dekantierzentrifuge
US3934792A (en) 1975-01-03 1976-01-27 Pennwalt Corporation Centrifuge apparatus
US4245777A (en) 1979-08-30 1981-01-20 Pennwalt Corporation Centrifuge apparatus
US4381849A (en) 1981-06-29 1983-05-03 Bird Machine Company, Inc. Solids-liquid slurry separating centrifuge
US4731182A (en) 1985-11-18 1988-03-15 Decanter Pty. Limited Decanter centrifuge
DE4119003A1 (de) * 1991-06-08 1992-12-10 Kloeckner Humboldt Deutz Ag Schneckenzentrifuge
WO1997022411A1 (fr) 1995-12-18 1997-06-26 Alfa Laval Separation A/S Decanteuse-centrifugeuse
DE19949194A1 (de) * 1999-10-13 2001-04-26 Flottweg Gmbh Vollmantelschneckenzentrifuge mit einem Stauwehr
WO2002005966A2 (fr) 2000-07-14 2002-01-24 Alfa Laval Inc. Decanteuse-centrifugeuse presentant une chicane pour des materiaux solides de phase lourde
DE10125096A1 (de) 2001-05-23 2002-11-28 Hiller Gmbh Dekantierzentrifuge
WO2005084814A1 (fr) * 2004-03-09 2005-09-15 Alfa Laval Copenhagen A/S Centrifugeuse permettant de separer un liquide amene comprenant une emulsion de deux phases liquides de densites differentes en une phase liquide legere et une phase liquide lourde
EP1949966A1 (fr) 2007-01-26 2008-07-30 Westfalia Separator GmbH Centrifugeuse à vis sans fin à bol plein dotée d'une chicane de mesure

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102824966A (zh) * 2012-07-31 2012-12-19 天圣环保工程（成都）有限公司 一种螺旋推料器及其应用的卧螺离心机
CN106622686A (zh) * 2015-08-26 2017-05-10 苏州瑞威离心分离技术有限公司 一种卧螺离心机
CN110252011A (zh) * 2019-07-17 2019-09-20 佛山市科屹五金电子有限公司 一种渣浆分离装置
CN110252011B (zh) * 2019-07-17 2023-12-22 佛山市科屹五金电子有限公司 一种渣浆分离装置
EP4563233A1 (fr) * 2023-11-30 2025-06-04 Alfa Laval Corporate AB Centrifugeuse décanteuse pour séparer la matière d'alimentation
WO2025114493A1 (fr) * 2023-11-30 2025-06-05 Alfa Laval Corporate Ab Décanteur centrifuge pour séparer un matériau d'alimentation

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