EP1732697B1 - Solid-wall centrifuge comprising a weir provided with a stationary deflector plate - Google Patents
Solid-wall centrifuge comprising a weir provided with a stationary deflector plate Download PDFInfo
- Publication number
- EP1732697B1 EP1732697B1 EP05716484.0A EP05716484A EP1732697B1 EP 1732697 B1 EP1732697 B1 EP 1732697B1 EP 05716484 A EP05716484 A EP 05716484A EP 1732697 B1 EP1732697 B1 EP 1732697B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- solid
- centrifuge according
- bowl centrifuge
- deflection disc
- drum
- 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.)
- Not-in-force
Links
- 239000007788 liquid Substances 0.000 claims description 26
- 238000007599 discharging Methods 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims 1
- 239000007791 liquid phase Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 238000005352 clarification Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
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
- B04B2001/2083—Configuration of liquid outlets
Definitions
- the invention relates to a solid bowl centrifuge according to the preamble of claim 1.
- the annular gap creates a flow resistance which is greater, the smaller the axial distance between the weir and the throttle plate. As the flow resistance increases, however, a larger liquid pressure at the passage is required, which leads to an increase in the liquid level in the centrifugal drum. If the axial distance between the weir and the throttle plate is increased, falls the liquid level in the centrifugal drum to a value which is caused by the passage of the weir without such a throttle disk.
- the DE PS 966,080 shows a Vollmantelschneckenzentrifuge, the liquid discharge from the drum is directed radially outward, where the liquid is collected in a kind of annulus with a nearly circular cross-section. Radial outward from the drum directed liquid discharges also shows the DE PS 706 968 ,
- the DE 25 15 452 A1 also shows behind the axially directed liquid discharges a co-rotating with the drum plate, which deflects the exiting liquid almost 180 ° in the opposite axial direction.
- the US 20 83 899 shows a centrifuge with vertical axis of rotation without throttle disc.
- the FR 20 57 600 and the FR 20 54 722 show in each case solid bowl centrifuges with axially directed to the axis of rotation liquid discharge, where exiting liquid can splash back from a wall behind the outlets back to the drum.
- the baffle is not a flat disc but a kind of "sleeve-like" component with an at least over part of the axial extension or the entire axial extension changing - here enlarging - inner diameter.
- the deflection disc thus has a defined axial extension (in extension of the axis of rotation of the drum) and an inner and an outer sheath, wherein the distance of the inner shell to the axis of rotation is not constant but expands or increases.
- an annular gap is formed between the passage and an orifice plate outside the centrifugal drum or between the passage and another component, which directs the liquid radially outward and preferably wholly or partially over its axial extent away from the expanding deflection disc is surrounded, so that the direct radial ejection of the liquid phase is prevented from this annular gap.
- the deflection disk has an advantageous effect, because it prevents the exiting liquid from hitting the drum again.
- the expanding baffle has an opening angle ⁇ to a perpendicular to the axis of rotation D of the drum or parallel to the drum cover extending plane which is greater than 0 ° and smaller than 90 °.
- the expanding baffle on the inner shell at an angle 90 ° - ⁇ to the axis of rotation (D) of the drum, which is greater than 0 ° and less than 90 °.
- the baffle preferably has such a shape and is arranged or integrated into the arrangement such that the liquid first emerges axially outwardly of the drum until it strikes a wall or disk from which it spouts substantially radially outward, wherein it impinges on the expanding baffle, which prevents the exiting liquid directly radially on wall (s) - in particular aligned parallel to the axis of rotation walls - the catching chamber, so that the noise is reduced compared to a configuration without a deflecting disc.
- the liquid initially enters axially - i. parallel to the axis of rotation of the drum - outwardly of the drum until it hits a wall from which it is directed substantially radially outwards.
- it meets the expanding baffle, which prevents the leaking fluid from getting back to the drum.
- the expanding geometry of the baffle has several advantages. On the one hand, it makes it possible to significantly reduce the operating noise of the centrifuge, since the liquid is no longer injected directly from the annular gap, in particular between the throttle plate or other component and the drum lid against walls of the trap chamber but is deflected by an angle which the opening angle of the deflection disc equivalent. As a result, the liquid is no longer perpendicular to the housing walls of the catching chamber, what the noise significantly reduced. This is a great advantage in practice given the high RPM of eg 3500 RPM.
- Another advantage is a reduction in power consumption due to the initially rapid discharge from the inner region, in particular away from the centrifugal drum surface.
- the inner diameter of the baffle is larger than the outer diameter, on which the passage openings of the centrifugal drum are arranged.
- the baffle connects axially directly to the passage openings, so that leakage of liquid between the drum cover and the baffle is prevented.
- lugs or the like are provided at the passage openings - which axially overlap the deflection disk.
- the deflection disk has an annular, conically widening shape.
- the opening angle of the inner jacket of the deflection disk is preferably between 5 and 45 °, in particular 10 to 30 °. Especially by the latter angular range can be particularly advantageous results, in particular a particularly significant noise minimization achieve.
Landscapes
- Centrifugal Separators (AREA)
Description
Die Erfindung betrifft eine Vollmantelzentrifuge nach dem Oberbegriff des Anspruchs 1.The invention relates to a solid bowl centrifuge according to the preamble of claim 1.
Vollmantelzentrifugen sind jeweils aus der
Durch die stillstehende Drosselscheibe tritt keine nachteilige Beeinflussung der Arbeitsweise der Schleudertrommel auf, wobei insbesondere keine nachteilige Bremswirkung durch die den Ringspalt zwischen dem rotierenden Wehr und der stillstehenden Flüssigkeitsscheibe passierende Flüssigkeit gegeben ist.Due to the stationary throttle disk does not adversely affect the operation of the centrifugal drum, in particular, no adverse braking effect is given by the annular gap between the rotating weir and the stationary liquid disc passing liquid.
Der Ringspalt erzeugt einen Durchflusswiderstand der um so größer ist, je geringer der axiale Abstand zwischen dem Wehr und der Drosselscheibe ist. Mit zunehmendem Durchflusswiderstand wird aber ein größerer Flüssigkeitsdruck am Durchlass erforderlich, der zu einem Anstieg des Flüssigkeitsspiegels in der Schleudertrommel führt. Wird der axiale Abstand zwischen dem Wehr und der Drosselscheibe vergrößert, fällt der Flüssigkeitsspiegel in der Schleudertrommel bis auf einen Wert, der durch den Durchlass des Wehres ohne eine derartige Drosselscheibe bewirkt wird.The annular gap creates a flow resistance which is greater, the smaller the axial distance between the weir and the throttle plate. As the flow resistance increases, however, a larger liquid pressure at the passage is required, which leads to an increase in the liquid level in the centrifugal drum. If the axial distance between the weir and the throttle plate is increased, falls the liquid level in the centrifugal drum to a value which is caused by the passage of the weir without such a throttle disk.
Diese Lösung hat sich in der Praxis hervorragend bewährt, da sie durch die Ausgestaltung als im Betrieb nicht mit der Trommel rotierende, stillstehende Konstruktion ohne den Zwang zur Übertragung von Stellkräften auf mitrotierende Teile der Zentrifuge einfach und kostengünstig zu realisieren ist und dabei den Vorteil einer hervorragenden Möglichkeit zur Steuerung und/oder Regelung des Trenn- oder Klärvorganges in der Trommel bietet.This solution has proven excellent in practice, since it is simple and inexpensive to implement by the design as not in operation with the drum rotating, stationary construction without the need for the transfer of restoring forces on co-rotating parts of the centrifuge and the advantage of excellent Possibility to control and / or regulation of the separation or clarification process in the drum offers.
Die
Die
Die
Die
Aus der gattungsgemäßen
Gegenüber dem gattungsgemäßen Stand der Technik, ist es die Aufgabe der Erfindung, auf einfache Weise eine schonendere Ableitung der Flüssigkeitsphase aus dem Wehr zu realisieren.Compared to the generic prior art, it is the object of the invention to realize a gentler discharge of the liquid phase from the weir in a simple manner.
Die Erfindung löst diese Aufgabe durch den Gegenstand des Anspruches 1.The invention solves this problem by the subject matter of claim 1.
Danach ist vor dem Trommeldeckel außerhalb der Schleudertrommel - innerhalb der Fangkammer - eine im Betrieb stillstehende, d.h. nicht mit der Trommel rotierende - sich vom Trommeldeckel weg zumindest abschnittsweise aufweitende - Ablenkscheibe angeordnet, die wenigstens einen Innenmantel aufweist, wobei der Abstand des Innenmantels zur Drehachse nicht konstant ist sondern sich aufweitet bzw. vergrößert.Thereafter, in front of the drum lid outside the centrifugal drum - within the catching chamber - a resting during operation, i. not with the drum rotating - at least partially widening away from the drum cover - widening disc arranged which has at least one inner shell, wherein the distance of the inner shell to the axis of rotation is not constant but expands or increases.
Unter Aufweiten ist zu verstehen, dass es sich bei der Ablenkscheibe um keine ebene Scheibe handelt sondern um eine Art "hülsenartiges" Bauteil mit einem sich zumindest über einen Teil der axialen Erstreckung oder die gesamte axiale Erstreckung verändernden - hier vergrößernden - inneren Durchmesser. Die Ablenkscheibe hat somit eine definierte axiale Erstreckung (in Verlängerung der Drehachse der Trommel) sowie einen Innen- und einen Außenmantel, wobei der Abstand des Innenmantels zur Drehachse nicht konstant ist sondern sich aufweitet bzw. vergrößert.By widening is to be understood that the baffle is not a flat disc but a kind of "sleeve-like" component with an at least over part of the axial extension or the entire axial extension changing - here enlarging - inner diameter. The deflection disc thus has a defined axial extension (in extension of the axis of rotation of the drum) and an inner and an outer sheath, wherein the distance of the inner shell to the axis of rotation is not constant but expands or increases.
Dabei ist zwischen dem Durchlass und einer Drosselscheibe außerhalb der Schleudertrommel oder zwischen dem Durchlass und einem sonstigen Bauteil ein Ringspalt ausgebildet, der die Flüssigkeit radial nach außen leitet und der vorzugsweise ganz oder teilweise über seine axiale Erstreckung hinweg von der sich aufweitenden Ablenkscheibe umgeben ist, so dass das direkte radiale Ausspritzen der Flüssigkeitsphase aus diesem Ringspalt verhindert wird. Gerade hier wirkt sich die Ablenkscheibe vorteilhaft aus, da sie verhindert, dass die austretende Flüssigkeit wieder an die Trommel trifft.In this case, an annular gap is formed between the passage and an orifice plate outside the centrifugal drum or between the passage and another component, which directs the liquid radially outward and preferably wholly or partially over its axial extent away from the expanding deflection disc is surrounded, so that the direct radial ejection of the liquid phase is prevented from this annular gap. Especially here, the deflection disk has an advantageous effect, because it prevents the exiting liquid from hitting the drum again.
Vorzugsweise weist die sich aufweitende Ablenkscheibe einen Öffnungswinkel γ zu einer senkrecht zur Drehachse D der Trommel bzw. parallel zum Trommeldeckel verlaufenden Ebene auf, der größer als 0° und kleiner als 90° ist. Damit weist die sich aufweitende Ablenkscheibe am Innenmantel einen Winkel 90° - γ zur Drehachse (D) der Trommel auf, der größer als 0° und kleiner als 90° ist.Preferably, the expanding baffle has an opening angle γ to a perpendicular to the axis of rotation D of the drum or parallel to the drum cover extending plane which is greater than 0 ° and smaller than 90 °. Thus, the expanding baffle on the inner shell at an angle 90 ° - γ to the axis of rotation (D) of the drum, which is greater than 0 ° and less than 90 °.
Die Ablenkscheibe weist vorzugsweise eine derartige Form auf und ist derart angeordnet bzw. in die Anordnung integriert, dass die Flüssigkeit zunächst axial nach außen aus der Trommel tritt, bis sie auf eine Wand oder Scheibe auftrifft, von der sie im wesentlichen radial nach außen spritzt, wobei sie auf die sich aufweitende Ablenkscheibe auftrifft, die verhindert, dass die austretende Flüssigkeit direkt radial auf Wandung(en) - insbesondere parallel zur Drehachse ausgerichtete Wandungen - der Fangkammer trifft, so dass sich die Geräuschentwicklung gegenüber einer Anordnung ohne Ablenkscheibe verringert.The baffle preferably has such a shape and is arranged or integrated into the arrangement such that the liquid first emerges axially outwardly of the drum until it strikes a wall or disk from which it spouts substantially radially outward, wherein it impinges on the expanding baffle, which prevents the exiting liquid directly radially on wall (s) - in particular aligned parallel to the axis of rotation walls - the catching chamber, so that the noise is reduced compared to a configuration without a deflecting disc.
Die Flüssigkeit tritt zunächst axial - d.h. parallel zur Drehachse der Trommel - nach außen aus der Trommel, bis sie auf eine Wand trifft, von der sie im wesentlichen radial nach außen gelenkt wird. Hier trifft sie auf die sich aufweitende Ablenkscheibe, die verhindert, dass die austretende Flüssigkeit wieder an die Trommel gelangt.The liquid initially enters axially - i. parallel to the axis of rotation of the drum - outwardly of the drum until it hits a wall from which it is directed substantially radially outwards. Here it meets the expanding baffle, which prevents the leaking fluid from getting back to the drum.
Die sich aufweitende Geometrie der Ablenkscheibe hat mehrere Vorteile. Einerseits ermöglicht sie es, das Betriebsgeräusch der Zentrifuge deutlich zu verringern, da die Flüssigkeit nicht mehr direkt aus dem Ringspalt insbesondere zwischen der Drosselscheibe oder einem sonstigen Bauelement und dem Trommeldeckel gegen Wandungen der Fangkammer spritzt sondern um einen Winkel abgelenkt wird, der dem Öffnungswinkel der Ablenkscheibe entspricht. Hierdurch trifft die Flüssigkeit nicht mehr senkrecht auf die Gehäusewandungen der Fangkammer, was die Geräuschentwicklung deutlich verringert. Dies ist in der Praxis angesichts der bei hohen Umdrehungszahlen von z.B. 3500 U/min ein großer Vorteil.The expanding geometry of the baffle has several advantages. On the one hand, it makes it possible to significantly reduce the operating noise of the centrifuge, since the liquid is no longer injected directly from the annular gap, in particular between the throttle plate or other component and the drum lid against walls of the trap chamber but is deflected by an angle which the opening angle of the deflection disc equivalent. As a result, the liquid is no longer perpendicular to the housing walls of the catching chamber, what the noise significantly reduced. This is a great advantage in practice given the high RPM of eg 3500 RPM.
Durch das "sanftere" Auftreffen eines Flüssigkeitsstrahles auf die Wandungen der Fangkammer wird zudem bei zu Schäumung neigenden Produkten die Schaumbildung verringert.Due to the "gentler" impingement of a jet of liquid on the walls of the catching chamber foaming is also reduced in prone to foaming products.
Ein weiterer Vorteil liegt in einer Reduzierung der Leistungsaufnahme durch das zunächst rasche Ableiten aus dem inneren Bereich, insbesondere von der Schleudertrommeloberfläche weg.Another advantage is a reduction in power consumption due to the initially rapid discharge from the inner region, in particular away from the centrifugal drum surface.
Vorzugsweise ist der innere Durchmesser der Ablenkscheibe größer als der äußere Durchmesser, auf dem die Durchlassöffnungen der Schleudertrommel angeordnet sind.Preferably, the inner diameter of the baffle is larger than the outer diameter, on which the passage openings of the centrifugal drum are arranged.
Bevorzugt schließt sich die Ablenkscheibe axial unmittelbar an die Durchlassöffnungen an, damit ein Austritt von Flüssigkeit zwischen dem Trommeldeckel und der Ablenkscheibe verhindert wird. Bei einer weiteren vorteilhaften Variante sind an den Durchlassöffnungen Ansätze vorgesehen - Hülsen oder dgl. -, welche die Ablenkscheibe axial überlappen.Preferably, the baffle connects axially directly to the passage openings, so that leakage of liquid between the drum cover and the baffle is prevented. In a further advantageous variant, lugs or the like are provided at the passage openings - which axially overlap the deflection disk.
Sämtliche übrigen eingangs beschriebenen Vorteile des gattungsgemäßen Standes der Technik bleiben ansonsten erhalten.All other advantages of the generic state of the art described at the outset are otherwise retained.
Besonders weist die Ablenkscheibe dabei eine ringartige, sich kegelig aufweitende Form auf.In particular, the deflection disk has an annular, conically widening shape.
Vorzugsweise beträgt der Öffnungswinkel des Innenmantels der Ablenkscheibe zwischen 5 und 45°, insbesondere 10 bis 30°. Gerade durch den letztgenannten Winkelbereich lassen sich besonders vorteilhafte Ergebnisse, insbesondere eine besonders deutliche Geräuschminimierung, erzielen.
Claims (19)
- Solid-bowl centrifuge, in particular a solid-bowl screw-type centrifuge, comprisinga) a centrifugal drum (1) rotatable about a horizontal axis of rotation,b) which centrifugal drum has a weir for discharging a liquid from the centrifugal drum (1),c) which weir has a passage with at least one or more passage openings (5) in an axial end region or drum cover (3),characterized in thatd) there is arranged in front of the drum cover (3) and outside of the centrifugal drum (1) a deflection disc (12) which is stationary during operation, widens at least in certain portions away from the drum cover (3) and has an inner jacket whose distance from the axis of rotation is not constant but widens or increases, whereine) an annular gap (8, 8') is formed between the passage (4) and a throttle disc (6) outside of the centrifugal drum or between the passage (4) and another component and is preferably completely or partially surrounded over its axial extent by the widening deflection disc (12).
- Solid-bowl centrifuge according to Claim 1, characterized in that the widening deflection disc (12) has at the inner jacket (7) an opening angle γ with respect to a plane (c) extending perpendicularly to the axis of rotation (D) of the drum or parallel to the drum cover (3), which opening angle is greater than 0° and less than 90°.
- Solid-bowl centrifuge according to either of the preceding claims, characterized in that the deflection disc has an annular, conically widening shape.
- Solid-bowl centrifuge according to one of the preceding claims, characterized in that the liquid first passes axially outwardly from the drum until it strikes a wall or disc from which it sprays substantially radially outwardly and strikes the widening deflection disc, which prevents the exiting liquid from directly radially striking the wall(s) (9) of the collection chamber, with the result that the generation of noise is reduced.
- Solid-bowl centrifuge according to one of the preceding claims, characterized in that the widening deflection disc (12) has at the inner jacket (7) an angle 90°-γ to the axis of rotation (D) of the drum which is greater than 0° and less than 90°.
- Solid-bowl centrifuge according to one of the preceding claims, characterized in that the inner smallest diameter of the deflection disc (12) is greater than the outer diameter on which the passage openings (5) are arranged.
- Solid-bowl centrifuge according to one of the preceding claims, characterized in that the deflection disc axially directly adjoins the passage openings (5).
- Solid-bowl centrifuge according to one of the preceding claims, characterized in that a projection (19) which protrudes axially from the drum cover and which is overlapped axially by the deflection disc (12) is formed on the passage openings (5).
- Solid-bowl centrifuge according to one of the preceding claims, characterized in that the opening angle (γ) of the deflection disc (12) is between 5 and 45°.
- Solid-bowl centrifuge according to Claim 9, characterized in that the opening angle (γ) of the deflection disc (12) is between 10 and 30°.
- Solid-bowl centrifuge according to one of the preceding claims, characterized in that the opening angle (γ) of the deflection disc (12) is constant.
- Solid-bowl centrifuge according to one of the preceding Claims 1 to 10, characterized in that the opening angle (γ) of the deflection disc (12) varies over its axial extent and/or in the circumferential direction.
- Solid-bowl centrifuge according to Claim 11, characterized in that the opening angle (γ) of the deflection disc (12) varies continuously or abruptly, in particular increases, over the axial extent of the deflection disc (12).
- Solid-bowl centrifuge according to one of the preceding claims, characterized by a multi-part, in particular two-part, configuration of the deflection disc (12).
- Solid-bowl centrifuge according to one of the preceding claims, characterized in that the distance between the passage (4) and the throttle disc (6) is variable.
- Solid-bowl centrifuge according to one of the preceding claims, characterized by a configuration as a solid-bowl screw-type centrifuge having a rotatable screw (2) arranged in the centrifugal drum (1).
- Solid-bowl centrifuge according to one of the preceding claims, characterized in that the deflection disc (12) is fastened to a surrounding wall (9, 10) via bolts (15 or 16) in an axial orientation.
- Solid-bowl centrifuge according to one of the preceding claims, characterized in that the deflection disc (12) is fastened to a surrounding wall (9, 10) via bolts (15 or 16) in a radial orientation.
- Solid-bowl centrifuge according to one of the preceding claims, characterized in that the deflection disc (12) is fastened to a surrounding wall (9, 10) via a ring (17).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202004005353U DE202004005353U1 (en) | 2004-04-06 | 2004-04-06 | Solid bowl centrifuge with a weir with a throttle disc |
PCT/EP2005/003399 WO2005097336A1 (en) | 2004-04-06 | 2005-03-31 | Solid-wall centrifuge comprising a weir provided with a stationary deflector plate |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1732697A1 EP1732697A1 (en) | 2006-12-20 |
EP1732697B1 true EP1732697B1 (en) | 2016-05-04 |
EP1732697B9 EP1732697B9 (en) | 2016-10-19 |
Family
ID=34877804
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05716484.0A Not-in-force EP1732697B9 (en) | 2004-04-06 | 2005-03-31 | Solid-wall centrifuge comprising a weir provided with a stationary deflector plate |
Country Status (6)
Country | Link |
---|---|
US (1) | US7753834B2 (en) |
EP (1) | EP1732697B9 (en) |
CN (1) | CN1938099B (en) |
DE (1) | DE202004005353U1 (en) |
DK (1) | DK1732697T3 (en) |
WO (1) | WO2005097336A1 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10203652B4 (en) * | 2002-01-30 | 2006-10-19 | Westfalia Separator Ag | Solid bowl centrifuge with a weir |
DE202004005353U1 (en) * | 2004-04-06 | 2005-08-18 | Westfalia Separator Ag | Solid bowl centrifuge with a weir with a throttle disc |
DK176946B1 (en) * | 2007-05-09 | 2010-06-14 | Alfa Laval Corp Ab | Centrifugal separator and a liquid phase drain port element |
DK200801848A (en) | 2008-12-30 | 2010-07-01 | Alfa Laval Corp Ab | A decanter centrifuge and a decanter centrifuge discharge port memeber. |
US9321058B2 (en) * | 2010-07-01 | 2016-04-26 | Centrisys Corp. | Centrifugal liquid separation machine to efficiently flow multi-phase solids from a heavy phase discharge stream with a solids plow |
DK178254B1 (en) * | 2010-11-12 | 2015-10-12 | Alfa Laval Corp Ab | Centrifugal separator, abrasion resistant element and set of abrasion resistant elements for a centrifugal separator |
US8956272B2 (en) * | 2011-12-30 | 2015-02-17 | Vanderbeken Ent. Ltd | Method and apparatus for removal of tars or resins from a scrubber liquid using a centrifuge with a discharge chamber scraper |
DE102012106226A1 (en) * | 2012-07-11 | 2014-01-16 | Gea Mechanical Equipment Gmbh | Solid bowl centrifuge with overflow weir |
DE102019135215A1 (en) * | 2019-12-19 | 2021-06-24 | Flottweg Se | Cross disk of a centrifuge screw and solid bowl screw centrifuge |
Family Cites Families (17)
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US2083899A (en) * | 1932-11-30 | 1937-06-15 | Centrifuge Company | Apparatus for centrifugal separation |
DE706968C (en) * | 1936-06-23 | 1941-06-10 | Gutehoffnungshuette Oberhausen | Slingshot for liquids with muddy to fine-grained components |
DE966080C (en) * | 1941-08-14 | 1957-07-04 | Starcosa Maschinen Und Appbau | Centrifugal separator |
NL157912B (en) | 1941-08-14 | Schering Ag | ||
FR2054722A5 (en) * | 1969-07-24 | 1971-05-07 | Saget Pierre | Centrifuge sepg two liquids and a solid |
FR2057600A5 (en) * | 1969-08-29 | 1971-05-21 | Saget Pierre | Centrifuge with modified solids discharge - conveyor |
FR2120537A5 (en) * | 1971-01-07 | 1972-08-18 | Saget Pierre | Continuous centrifugal separator - for liquids of similar density applicable with sediment present |
DE2515452A1 (en) * | 1975-04-09 | 1976-10-21 | Mono Pumps Ltd | Centrifuge - auger has flights to separate solid and liquid material |
DE2901607C2 (en) * | 1979-01-17 | 1981-03-12 | Westfalia Separator Ag, 4740 Oelde | Solid bowl screw centrifuge |
SE459234B (en) * | 1987-10-15 | 1989-06-19 | Alfa Laval Marine Power Eng | SEAT AND EQUIPMENT MAKES INTERIOR DISCOVERY OF A Centrifuge Rotor |
CN2157195Y (en) * | 1992-10-23 | 1994-02-23 | 农业部种子项目办公室 | Centrifugal for removing linters of cotton seeds with diluted sulfuric acid |
DE4320265C2 (en) * | 1993-06-18 | 1995-08-03 | Westfalia Separator Ag | Weir for solid jacket centrifugal drums |
JP3543597B2 (en) * | 1997-12-22 | 2004-07-14 | 株式会社クボタ | Separation water discharge device in horizontal centrifuge |
JPH11197547A (en) * | 1998-01-13 | 1999-07-27 | Kubota Corp | Device of discharging separated water in a horizontal type centrifugal separator |
DE19948115A1 (en) * | 1999-10-06 | 2001-04-12 | Baker Hughes De Gmbh | Centrifuge for separating solid-liquid mixtures |
DE10021983A1 (en) | 2000-05-05 | 2001-11-08 | Baker Hughes De Gmbh | Solid bowl centrifuge has an adjustable weir consisting of an annular plate connected to the centrifuge housing and fixed to cover the liquid openings of the centrifuge drum from the outside |
DE202004005353U1 (en) * | 2004-04-06 | 2005-08-18 | Westfalia Separator Ag | Solid bowl centrifuge with a weir with a throttle disc |
-
2004
- 2004-04-06 DE DE202004005353U patent/DE202004005353U1/en not_active Expired - Lifetime
-
2005
- 2005-03-31 US US10/594,554 patent/US7753834B2/en not_active Expired - Fee Related
- 2005-03-31 DK DK05716484.0T patent/DK1732697T3/en active
- 2005-03-31 WO PCT/EP2005/003399 patent/WO2005097336A1/en active Application Filing
- 2005-03-31 EP EP05716484.0A patent/EP1732697B9/en not_active Not-in-force
- 2005-03-31 CN CN2005800101571A patent/CN1938099B/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN1938099A (en) | 2007-03-28 |
DK1732697T3 (en) | 2016-08-22 |
EP1732697B9 (en) | 2016-10-19 |
DE202004005353U1 (en) | 2005-08-18 |
CN1938099B (en) | 2010-07-07 |
EP1732697A1 (en) | 2006-12-20 |
US7753834B2 (en) | 2010-07-13 |
US20080248940A1 (en) | 2008-10-09 |
WO2005097336A1 (en) | 2005-10-20 |
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