EP0808218A1 - Pusher centrifuge - Google Patents

Pusher centrifuge

Info

Publication number
EP0808218A1
EP0808218A1 EP96946050A EP96946050A EP0808218A1 EP 0808218 A1 EP0808218 A1 EP 0808218A1 EP 96946050 A EP96946050 A EP 96946050A EP 96946050 A EP96946050 A EP 96946050A EP 0808218 A1 EP0808218 A1 EP 0808218A1
Authority
EP
European Patent Office
Prior art keywords
centrifuge
pusher
ring cup
floor
push
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.)
Granted
Application number
EP96946050A
Other languages
German (de)
French (fr)
Other versions
EP0808218B1 (en
Inventor
Fritz GREINER-STÜRMER
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.)
Siteg Siebtechnik GmbH
Siebtechnik GmbH
Original Assignee
Siteg Siebtechnik GmbH
Siebtechnik 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 Siteg Siebtechnik GmbH, Siebtechnik GmbH filed Critical Siteg Siebtechnik GmbH
Publication of EP0808218A1 publication Critical patent/EP0808218A1/en
Application granted granted Critical
Publication of EP0808218B1 publication Critical patent/EP0808218B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B3/00—Centrifuges with rotary bowls in which solid particles or bodies become separated by centrifugal force and simultaneous sifting or filtering
    • B04B3/02—Centrifuges with rotary bowls in which solid particles or bodies become separated by centrifugal force and simultaneous sifting or filtering discharging solid particles from the bowl by means coaxial with the bowl axis and moving to and fro, i.e. push-type centrifuges

Definitions

  • the invention relates to a push centrifuge with a centrifuge drum, a push floor, a filling tube for the centrifugal material projecting coaxially into the centrifuge drum and connected to the centrifuge housing, and a concentric distributor cone following the filling tube, the end of which having the larger diameter with the release of an annular gap Distance in front of the moving floor ends.
  • centrifugal centrifuges of this type there is a need to accelerate the centrifuged material to increase the mass throughput while protecting sensitive solid particles and reducing machine wear, in particular wear on the slotted sieve in the feed zone, as far as possible to the centrifuged material fed up to the angular velocity of the solid cake in the centrifuge drum.
  • a thrust centrifuge is also known, in which the centrifugal material is to be accelerated to a high degree by internals between the pushing floor and the guide disk similar to pump impellers, but the constructionally high radial acceleration component, which is partially reinforced by the number of impeller vanes, leads to high wear of the slotted screen covering in the feed zone.
  • the object of the invention is to create a pusher centrifuge which separates solids from liquids in the feed zone in a manner that is gentle on the grain and with minimal wear on the slotted screen in the feed zone.
  • this object is achieved in that a concentric ring cup which projects into the centrifuge drum and surrounds the end of the distributor cone which faces the end of the moving floor is fastened to the moving floor.
  • the ring cup Due to the centrifugal force, the ring cup is constantly filled with feed material up to the overflow edge.
  • the feed material which continues to flow continuously, is fed into the The ring cup is gently accelerated to the angular velocity of the ring cup by the rotating suspension ring and placed on the solid cake formed over the overflow edge in the form of a uniformly flowing suspension film.
  • Figure 1 shows a longitudinal section of the pusher centrifuge according to the invention
  • FIGS. 2 to 5 show, on an enlarged scale, sectional views of details of the push centrifuge according to the invention modified according to the invention.
  • the centrifuge shown in FIG. 1 is a push centrifuge with an inner and an outer centrifugal drum 1 and 2.
  • a push floor 5 is attached to the outer centrifugal drum by means of spacer bolts 3, which penetrate the bottom 4 of the inner centrifugal drum 1, which the distributor cone 6 and wearing a ring cup 7.
  • the distributor cone 6 has a central opening 8. With the moving floor 5, the distributor cone 6 forms the annular gap 9.
  • a filling tube 11 which is fixedly connected to the centrifuge housing 10, projects for the supply of the centrifuged material.
  • the inner and outer centrifugal drums 1 and 2 have concentric shafts 12 and 13 which are rotatably mounted in the centrifuge housing, the shaft 12 of the inner centrifugal drum 1 carrying out a reciprocating lifting movement in the direction of the double arrow fl in addition to the rotary movement.
  • FIG. 2 shows the push floor 5 with the distributor cone 6 connected via fastening ribs 17 and the ring cup 7 also connected with the push floor 5.
  • FIG. 3 shows the ring cup 7 with additional axially directed sieve openings 14 for preliminary dewatering through the push floor 5.
  • FIG. 4 shows the ring cup 7 with an integrated sliding floor sealing ring 15.
  • FIG. 5 shows the push floor 5 with the ring cup 7 and a distributor cone 16 connected to the filling tube 11, which means that fastening ribs 17 (FIG. 2) that are particularly exposed to wear can also be dispensed with in order to protect the feed material.
  • the ring cup 7 forms a groove facing the distributor cone 6 or 16, the bottom of which has a profile following a polygon, which also applies to the outer profile of the ring cup 7.
  • the radial distance of the ring cup from the inner jacket of the centrifuge drum should depend on the given design and operating data of the centrifuge and the consistency of the centrifuge be chosen so that during operation of the centrifuge, the filter cake F building up inside the centrifuge drum lies outside the ring cup 7, that is, the ring cup 7 must not be immersed in the filter cake F which is being formed.

Abstract

PCT No. PCT/DE96/02345 Sec. 371 Date Aug. 8, 1997 Sec. 102(e) Date Aug. 8, 1997 PCT Filed Dec. 6, 1996 PCT Pub. No. WO97/21491 PCT Pub. Date Jul. 19, 1995A pusher centrifuge has a housing and a centrifuge drum arranged in the housing. A pusher bottom is arranged in the centrifuge drum. A filler pipe is connected to the housing and extends concentrically into the centrifuge drum. Material to be centrifuged is introduced into the centrifuge drum through the filler pipe in a direction of filling. A distribution cone is positioned downstream of the filler pipe in the centrifuge drum. The distribution cone has a wide end and a narrow end. The wide end is positioned facing the pusher bottom and spaced from the pusher bottom by an annular gap. An annular cup is arranged at the pusher bottom and projects concentrically from the pusher bottom into the centrifuge drum. It surrounds the wide end of the distribution cone.

Description

SchubzentrifugePusher centrifuge
Die Erfindung betrifft eine Schubzentrifuge mit einer Zentrifugentrommel, einem Schubboden, einem koaxial in die Zentrifugentrommel ragenden, mit dem Zentrifugen¬ gehäuse verbundenen Füllrohr für das Schleudergut, und einem auf das Füllrohr folgenden konzentrischen Verteilerkonus, dessen den größeren Durchmesser aufweisendes Ende unter Freilassung eines Ringspaltes mit Abstand vor dem Schubboden endet.The invention relates to a push centrifuge with a centrifuge drum, a push floor, a filling tube for the centrifugal material projecting coaxially into the centrifuge drum and connected to the centrifuge housing, and a concentric distributor cone following the filling tube, the end of which having the larger diameter with the release of an annular gap Distance in front of the moving floor ends.
Bei Schubzentrifugen dieser Art besteht das Bedürfnis, das Schleudergut zur Steigerung des Massendurchsatzes bei gleichzeitiger Schonung empfindlicher Feststoffpartikel und Reduzierung des Maschinenverschleißes, insbesondere des Spaltsiebverschleißes in der Aufgabezone, das zugeführte Schleudergut möglichst bis auf die Winkel¬ geschwindigkeit des Feststoffkuchens in der Zentrifugentrommel zu beschleunigen. Bei einer aus der DE 28 48 156 C2 bekannten Schubzentrifuge wird in dem Versuch einer Lösung dieses Problems das Schleudergut durch eine senkrecht zur Schleuderachse verlaufende Leitwand nur ungenügend auf Winkel¬ geschwindigkeit des in der Schleudertrommel gebildeten Feststoffkuchens vorbeschleunigt, wodurch eine spontane Entwässerung, die zur Bildung eines schubfesten Feststoffkuchens in der Aufgabezone erforderlich ist, nicht gewährleistet wird. Dies führt zu einer Reduzierung des Massendurchsatzes in der Schubzentrifuge. Aus der DE 43 08 749 Cl ist weiterhin eine Schubzentrifuge bekannt, bei der das Schleudergut durch pumpenradähnliche Einbauten zwischen Schubboden und Leitscheibe zwar hoch beschleunigt werden soll, wobei jedoch die konstruktiv bedingte hohe radiale Beschleunigungskomponente, die durch die Anzahl der Pumpenradflügel partiell noch verstärkt wird, zu einem hohen Verschleiß des Spaltsiebbelages in der Aufgabezone führt.In centrifugal centrifuges of this type, there is a need to accelerate the centrifuged material to increase the mass throughput while protecting sensitive solid particles and reducing machine wear, in particular wear on the slotted sieve in the feed zone, as far as possible to the centrifuged material fed up to the angular velocity of the solid cake in the centrifuge drum. In a thrust centrifuge known from DE 28 48 156 C2, in an attempt to solve this problem, the centrifuged product is only insufficiently pre-accelerated to the angular velocity of the solid cake formed in the centrifugal drum by a guide wall running perpendicular to the centrifugal axis, as a result of which a spontaneous dewatering which leads to formation a shear-resistant solid cake in the feed zone is not guaranteed. This leads to a reduction in mass throughput in the pusher centrifuge. From DE 43 08 749 Cl a thrust centrifuge is also known, in which the centrifugal material is to be accelerated to a high degree by internals between the pushing floor and the guide disk similar to pump impellers, but the constructionally high radial acceleration component, which is partially reinforced by the number of impeller vanes, leads to high wear of the slotted screen covering in the feed zone.
Der Erfindung liegt die Aufgabe zugrunde, eine Schub¬ zentrifuge zu schaffen, die bei optimalem Massendurchsatz kornschonend und mit geringem Verschleiß des Spaltsieb¬ belages in der Aufgabezone Feststoffe von Flüssigkeiten trennt.The object of the invention is to create a pusher centrifuge which separates solids from liquids in the feed zone in a manner that is gentle on the grain and with minimal wear on the slotted screen in the feed zone.
Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß am Schubboden eine das dem Schubbodenende zugewandte Ende des Verteilerkonus umgebende, konzentrische, in die Zentrifugentrommel ragende Ringtasse befestigt ist.According to the invention, this object is achieved in that a concentric ring cup which projects into the centrifuge drum and surrounds the end of the distributor cone which faces the end of the moving floor is fastened to the moving floor.
Durch die Zentrifugalkraft ist die Ringtasse ständig bis zur Überlaufkante mit Aufgabegut gefüllt. Das weiter kontinuierlich nachfließende Aufgabegut wird in der Ringtasse durch den rotierenden Suspensions-Ring schonend auf Winkelgeschwindigkeit der Ringtasse beschleunigt und über die Überlaufkante in Form eines gleichmäßig überströmenden Suspensions-Filmes auf den gebildeten Feststoffkuchen aufgegeben.Due to the centrifugal force, the ring cup is constantly filled with feed material up to the overflow edge. The feed material, which continues to flow continuously, is fed into the The ring cup is gently accelerated to the angular velocity of the ring cup by the rotating suspension ring and placed on the solid cake formed over the overflow edge in the form of a uniformly flowing suspension film.
Vorteilhafte Ausgestaltungen sind in den Unteransprüchen angegeben.Advantageous refinements are specified in the subclaims.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird nachstehend näher erläutert.An embodiment of the invention is shown in the drawing and is explained in more detail below.
Figur 1 zeigt einen Längsschnitt der erfindungsgemäßen Schubzentrifuge;Figure 1 shows a longitudinal section of the pusher centrifuge according to the invention;
die Figuren 2 bis 5 zeigen in vergrößerter Darstellung Schnittansichten von erfindungsgemäß abgewandelten Details der erfindungsgemäßen Schubzentrifuge.FIGS. 2 to 5 show, on an enlarged scale, sectional views of details of the push centrifuge according to the invention modified according to the invention.
Die in Figur 1 dargestellte Zentrifuge ist eine Schubzentrifuge mit einer inneren und einer äußeren Schleudertrommel 1 und 2. An der äußeren Schleudertrommel ist mittels Distanzbolzen 3, die den Boden 4 der inneren Schleudertrommel 1 durchdringen, ein Schubboden 5 befestigt, der den Verteiler-Konus 6 und eine Ringtasse 7 trägt.The centrifuge shown in FIG. 1 is a push centrifuge with an inner and an outer centrifugal drum 1 and 2. A push floor 5 is attached to the outer centrifugal drum by means of spacer bolts 3, which penetrate the bottom 4 of the inner centrifugal drum 1, which the distributor cone 6 and wearing a ring cup 7.
Der Verteiler-Konus 6 weist eine zentrale Öffnung 8 auf. Mit dem Schubboden 5 bildet der Verteiler-Konus 6 den Ringspalt 9.The distributor cone 6 has a central opening 8. With the moving floor 5, the distributor cone 6 forms the annular gap 9.
In die zentrale Öffnung 8 ragt ein fest mit dem Zentrifugengehäuse 10 verbundenes Füllrohr 11 für die Zufuhr des Schleudergutes. Die innere und die äußere Schleudertrommel 1 und 2 haben konzentrische Wellen 12 und 13, die im Zentrifugen¬ gehäuse drehbar gelagert sind, wobei die Welle 12 der inneren Schleudertrommel 1 neben der Drehbewegung noch eine hin- und hergehende Hubbewegung in Richtung des Doppelpfeiles fl durchführt.In the central opening 8, a filling tube 11, which is fixedly connected to the centrifuge housing 10, projects for the supply of the centrifuged material. The inner and outer centrifugal drums 1 and 2 have concentric shafts 12 and 13 which are rotatably mounted in the centrifuge housing, the shaft 12 of the inner centrifugal drum 1 carrying out a reciprocating lifting movement in the direction of the double arrow fl in addition to the rotary movement.
Die Figur 2 zeigt den Schubboden 5 mit dem über Befestigungsrippen 17 verbundenen Verteilerkonus 6 und die ebenfalls mit dem Schubboden 5 verbundene Ringtasse 7.FIG. 2 shows the push floor 5 with the distributor cone 6 connected via fastening ribs 17 and the ring cup 7 also connected with the push floor 5.
Die Figur 3 zeigt die Ringtasse 7 mit zusätzlichen axial gerichteten Sieböffnungen 14 zur Vorentwässerung durch den Schubboden 5 hindurch.FIG. 3 shows the ring cup 7 with additional axially directed sieve openings 14 for preliminary dewatering through the push floor 5.
Die Figur 4 zeigt die Ringtasse 7 mit integriertem Schubboden-Abdichtring 15.FIG. 4 shows the ring cup 7 with an integrated sliding floor sealing ring 15.
Die Figur 5 zeigt den Schubboden 5 mit der Ringtasse 7 und einem mit dem Füllrohr 11 verbundenen Verteiler-Konus 16, wodurch auch zur Aufgabegutschonung auf einem besonders hohen Verschleiß ausgesetzte Befestigungsrippen 17 (Figur 2) verzichtet werden kann.FIG. 5 shows the push floor 5 with the ring cup 7 and a distributor cone 16 connected to the filling tube 11, which means that fastening ribs 17 (FIG. 2) that are particularly exposed to wear can also be dispensed with in order to protect the feed material.
Bei allen Ausführungsformen bildet die Ringtasse 7 eine dem Verteiler-Konus 6 bzw. 16 zugewandte Rille, deren Boden ein einem Polygonzug folgendes Profil hat, was auch für das Außenprofil der Ringtasse 7 gilt.In all embodiments, the ring cup 7 forms a groove facing the distributor cone 6 or 16, the bottom of which has a profile following a polygon, which also applies to the outer profile of the ring cup 7.
Der radiale Abstand der Ringtasse vom Innenmantel der Zentrifugentrommel soll in Abhängigkeit von den vorgegebenen Konstruktions- und Betriebsdaten der Zentrifuge und der Konsistenz des Schleudergutes so gewählt sein, daß im Betrieb der Zentrifuge der sich innerhalb der Zentrifugentrommel aufbauende Filterkuchen F außerhalb der Ringtasse 7 liegt, das heißt, die Ringtasse 7 darf nicht in den sich bildenden Filterkuchen F eintauchen. Der Außenradius Ra der Ringtasse 7 liegt bezogen auf den Innenradius Ri und die nutzbare Siebbodenlänge ls der Zentrifugentrommel vorzugsweise im Bereich von Ra = Ri - 0,15 ls bis Ra = Ri - 0,22 ls. The radial distance of the ring cup from the inner jacket of the centrifuge drum should depend on the given design and operating data of the centrifuge and the consistency of the centrifuge be chosen so that during operation of the centrifuge, the filter cake F building up inside the centrifuge drum lies outside the ring cup 7, that is, the ring cup 7 must not be immersed in the filter cake F which is being formed. The outer radius Ra of the ring cup 7, based on the inner radius Ri and the usable sieve plate length ls of the centrifuge drum, is preferably in the range from Ra = Ri - 0.15 ls to Ra = Ri - 0.22 ls.

Claims

P A T E N T A N S P R Ü C H E PATENT CLAIMS
1. Schubzentrifuge mit einer Zentrifugentrommel (1), einem Schubboden (5), einem koaxial in die Zentrifugentrommel ragenden, mit dem Zentrifugen¬ gehäuse (10) verbundenen Füllrohr (11) für das Schleudergut, und einem auf das Füllrohr folgenden konzentrischen Verteiler-Konus (7; 16), dessen den größeren Durchmesser aufweisendes Ende unter Freilassung eines Ringspaltes (9) mit Abstand vor dem Schubboden (5) endet, dadurch gekennzeichnet, daß am Schubboden (5) eine das dem Schubboden zugewandte Ende des Verteiler-Konus (6; 16) umgebende, konzentrische, in die Zentrifugentrommel (1) ragende Ringtasse (7) befestigt ist.1. Push centrifuge with a centrifuge drum (1), a sliding floor (5), a coaxially projecting into the centrifuge drum, with the centrifuge housing (10) connected filling tube (11) for the centrifugal material, and a concentric distributor cone following the filling tube (7; 16), the end of which has the larger diameter and leaves an annular gap (9) at a distance in front of the push floor (5), characterized in that on the push floor (5) one end of the distributor cone (6 ; 16) surrounding concentric ring cup (7) projecting into the centrifuge drum (1) is fastened.
2. Schubzentrifuge nach Anspruch 1, dadurch gekennzeichnet, daß die Ringtasse (7) eine dem Verteiler-Konus (6; 16) zugewandte Rille bildet, deren Boden ein einem Polygonzug folgendes Profil hat.2. A pusher centrifuge according to claim 1, characterized in that the ring cup (7) forms a groove facing the distributor cone (6; 16), the bottom of which has a profile following a polygon.
3. Schubzentrifuge nach Anspruch 1, dadurch gekennzeichnet, daß die Ringtasse (7) ein einem Polygonzug folgendes Außenprofil hat. 3. A pusher centrifuge according to claim 1, characterized in that the ring cup (7) has an outer profile following a polygon.
4. Schubzentrifuge nach Anspruch 1, dadurch gekennzeichnet, daß der radiale Abstand der Ringtasse (7) vom Innen¬ mantel der Zentrifugentrommel (1) in Abhängigkeit von den vorgegebenen Konstruktions- und Betriebsdaten der Zentrifuge und der Konsistenz des Schleudergutes so gewählt ist, daß im Betrieb der Zentrifuge der sich innerhalb der Zentrifugentrommel (1) aufbauende Filterkuchen (F) außerhalb der Ringtasse (7) liegt.4. A pusher centrifuge according to claim 1, characterized in that the radial distance of the ring cup (7) from the inner jacket of the centrifuge drum (1) in dependence on the given design and operating data of the centrifuge and the consistency of the centrifugal material is chosen so that in Operation of the centrifuge of the filter cake (F) building up inside the centrifuge drum (1) lies outside the ring cup (7).
5. Schubzentrifuge nach Anspruch 1, dadurch gekennzeichnet, daß der Außenradius (Ra) der Ringtasse (7) bezogen auf den Innenradius (Ri) und die nutzbare Siebbodenlänge (ls) der Zentrifugentrommel (1) im Bereich von5. A pusher centrifuge according to claim 1, characterized in that the outer radius (Ra) of the ring cup (7) based on the inner radius (Ri) and the usable sieve bottom length (ls) of the centrifuge drum (1) in the range
Ra = Ri - 0,15 ls bis Ra = Ri - 0,22 ls liegt.Ra = Ri - 0.15 ls until Ra = Ri - 0.22 ls.
6. Schubzentrifuge nach Anspruch 1, dadurch gekennzeichnet, daß die Ringtasse (7) an dem Schubboden (5) befestigt ist und axial verlaufende, sich durch den Schubboden fortsetzende Sieböffnungen (14) aufweiεt.6. A pusher centrifuge according to claim 1, characterized in that the ring cup (7) is attached to the pusher floor (5) and has axially extending sieve openings (14) extending through the pusher floor.
7. Schubzentrifuge nach Anspruch 6, dadurch gekennzeichnet, daß an die Ringtasse (7) ein radial nach außen gerichteter Schubboden-Abdichtring (15) anschließt.7. push centrifuge according to claim 6, characterized in that to the ring cup (7) is connected to a radially outwardly directed sliding floor sealing ring (15).
8. Schubzentrifuge nach Anspruch 1, dadurch gekennzeichnet, daß der Verteiler-Konus (6) an dem Schubboden (5) befestigt ist.8. A push centrifuge according to claim 1, characterized in that the distributor cone (6) is attached to the push floor (5).
9. Schubzentrifuge nach Anspruch 1, dadurch gekennzeichnet, daß der Verteiler-Konus (16) am Füllrohr (11) befestigt ist. 9. A pusher centrifuge according to claim 1, characterized in that the distributor cone (16) is attached to the filling tube (11).
EP96946050A 1995-12-09 1996-12-06 Pusher centrifuge Expired - Lifetime EP0808218B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19546019A DE19546019C1 (en) 1995-12-09 1995-12-09 Thrust centrifuge with drum
DE19546019 1995-12-09
PCT/DE1996/002345 WO1997021491A1 (en) 1995-12-09 1996-12-06 Pusher centrifuge

Publications (2)

Publication Number Publication Date
EP0808218A1 true EP0808218A1 (en) 1997-11-26
EP0808218B1 EP0808218B1 (en) 2000-09-13

Family

ID=7779682

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96946050A Expired - Lifetime EP0808218B1 (en) 1995-12-09 1996-12-06 Pusher centrifuge

Country Status (6)

Country Link
US (1) US5935438A (en)
EP (1) EP0808218B1 (en)
JP (1) JPH11500356A (en)
AT (1) ATE196263T1 (en)
DE (1) DE19546019C1 (en)
WO (1) WO1997021491A1 (en)

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US7025211B2 (en) 2003-04-16 2006-04-11 Ferrum Ag Double pusher centrifuge
EP1468741A1 (en) * 2003-04-16 2004-10-20 Ferrum AG Double-acting pusher centrifuge
ES2350815T3 (en) 2007-07-12 2011-01-27 INTERSNACK KNABBER-GEBÄCK GMBH & CO. KG PROCEDURE FOR THE MANUFACTURE OF FRIED FOOD PRODUCTS WITH LOW FAT CONTENT.
WO2013025980A1 (en) * 2011-08-18 2013-02-21 OrgAmi, LLC Organic waste liquid solid separator
DE102012101787A1 (en) 2012-03-02 2013-09-05 Andritz Kmpt Gmbh Pusher centrifuge and method for operating a pusher centrifuge
KR101231066B1 (en) * 2012-07-18 2013-02-07 주식회사 천보엔지니어링 Centrifugal dehydrater having distributing room of antiblocking structure
JP2014091093A (en) * 2012-11-05 2014-05-19 Tsukishima Kikai Co Ltd Pusher type centrifuge
CN103100491B (en) * 2012-12-14 2014-07-16 浙江轻机离心机制造有限公司 Material pushing piece of drum of material pushing centrifugal machine
CN105561658B (en) * 2014-10-14 2018-09-14 中国石油化工股份有限公司 Fusion-crystallization suspension isolates and purifies device and method
KR102504657B1 (en) * 2019-11-18 2023-02-27 주식회사 엘지화학 Pressurizing centrifugal dehydrator
CN111686943A (en) * 2020-06-22 2020-09-22 湘潭大学 Wear-resistant push block device of piston pusher centrifuge and implementation method

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DE2542916B2 (en) * 1975-09-26 1980-08-07 Siebtechnik Gmbh, 4330 Muelheim Two-stage pusher centrifuge
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DE2706501C2 (en) * 1977-02-16 1982-07-29 Otwin Dipl.-Ing. Dr. 7000 Stuttgart Imhof The surface of a circular ring of a push floor of a pusher centrifuge facing the filter cake
CH624858A5 (en) * 1977-11-25 1981-08-31 Escher Wyss Ag
DE4308749C1 (en) * 1993-03-19 1994-04-07 Krauss Maffei Ag Thrust centrifuge having pump wheel rotating with drum - with filler tube for centrifuging material and connected to centrifuge housing

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Title
See references of WO9721491A1 *

Also Published As

Publication number Publication date
EP0808218B1 (en) 2000-09-13
US5935438A (en) 1999-08-10
WO1997021491A1 (en) 1997-06-19
ATE196263T1 (en) 2000-09-15
DE19546019C1 (en) 1997-02-20
JPH11500356A (en) 1999-01-12

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