WO1999042220A1 - Vollmantel-schneckenzentrifuge mit mehrstufigem umlaufgetriebe - Google Patents
Vollmantel-schneckenzentrifuge mit mehrstufigem umlaufgetriebe Download PDFInfo
- Publication number
- WO1999042220A1 WO1999042220A1 PCT/EP1999/000055 EP9900055W WO9942220A1 WO 1999042220 A1 WO1999042220 A1 WO 1999042220A1 EP 9900055 W EP9900055 W EP 9900055W WO 9942220 A1 WO9942220 A1 WO 9942220A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- drum
- gear
- bearing
- gear train
- stages
- Prior art date
Links
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
- B04B1/2016—Driving control or mechanisms; Arrangement of transmission gearing
-
- 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
- B04B1/2016—Driving control or mechanisms; Arrangement of transmission gearing
- B04B2001/2025—Driving control or mechanisms; Arrangement of transmission gearing with drive comprising a planetary gear
Definitions
- the invention relates to a solid-bowl screw centrifuge with a drivable drum which is mounted on the two end faces and can be rotated about a horizontal axis, and a co-screw which is rotatably mounted coaxially therein and can be driven with a differential speed relative to the drum
- the Drive has a multi-stage epicyclic gear, the housing shell is connected to the drum shell and the output shaft is connected to the screw conveyor.
- the solid With the help of a differential speed between the drum and the screw, the solid is guided to the solid discharge at one end of the drum.
- Solid-bowl screw centrifuges are known in which the planetary gear with the drum is arranged between the drum bearings or outside the drive-side drum bearing.
- a screw centrifuge is known from US Pat. No. 5,403,260 in which the planetary gear is arranged outside the drum bearing. This is about it is a so-called "external gear".
- the disadvantage is that both the hub of the housing of the epicyclic gear and the gear output shaft must be passed through the drive-side bearing of the drum. The resulting bearing size leads to problems at high speeds of the drum and the screw conveyor.
- the natural frequency of the drum is one of the limiting variables for the maximum possible drum speed.
- the invention has for its object to design a screw centrifuge of the type mentioned so that high peripheral speeds of the drum and large drum diameters are possible when using multi-stage planetary gears.
- Drum bearing is provided between two stages of the multi-stage epicyclic gear.
- the housing of the multi-stage epicyclic gear in the region of the gear-side drum bearing has a cylindrical intermediate piece with a reduced diameter compared to the housing parts of the gear stages.
- the gear-side drum bearing receives the intermediate piece and a shaft connecting the gear stages. The diameter of the intermediate piece thus corresponds to the inside diameter of a suitable drum bearing.
- FIG. 1 shows a schematic representation of a known screw centrifuge with an internal, multi-stage epicyclic gear
- FIG. 2 shows a known screw centrifuge with an external, multi-stage planetary gear in a schematic representation
- FIG. 3 shows an embodiment according to the invention in a schematic illustration
- Figure 4 shows a known screw centrifuge, in contrast to the
- the epicyclic gear is arranged at the end of the drum at which the liquid is discharged
- 5 shows a known screw centrifuge, in which, in contrast to the embodiment according to FIG. 2, the epicyclic gear is provided at the end of the drum at which the liquid is dropped and
- FIG. 6 shows an embodiment according to the invention with the planetary gear at the liquid end of the drum.
- the solid-bowl screw centrifuges which are shown in FIGS. 1 to 6, have a drum 1 which is rotatably mounted about a horizontal axis 2.
- a screw conveyor not shown, is arranged coaxially in the drum and is likewise rotatably mounted about the horizontal axis 2.
- the screw conveyor is driven via an output shaft 3 of a multi-stage epicyclic gear 4, which is arranged in the solid bowl screw centrifuge according to FIG. 1 with the drum 1 between the bearings 5, 6.
- the epicyclic gear 4 is provided outside the gear-side bearing 5.
- FIGS. 3 and 6 Embodiments of the construction according to the invention are shown in FIGS. 3 and 6.
- the gear-side drum bearing 5 is arranged between the stages 7 and 8 of the epicyclic gear 9.
- the gear housing 10, which rotates during operation, is connected to the drum shell 1 1 and has a cylindrical intermediate piece 1 2 in the area of the gear-side drum bearing 5, the diameter of which is reduced compared to the housing parts of the gear stages 7 and 8.
- the bearing 5 thus receives the intermediate piece 1 2 and a shaft 1 3 connecting the gear stages 7 and 8.
- the intermediate piece 1 2 is divided transversely to the axis of rotation 2, specifically for reasons of assembly.
- the drum shell 11 can have a diameter which is greater than 1,000 mm.
- the ratio between the center distance L of the bearings 5 and 6 the drum 1 and the diameter D of the drum shell 1 1 (L / D) can be greater than 3.8.
- the torque between the drum and the screw conveyor can be, for example, 1 00,000 Nm.
- the peripheral speed at the inner radius of the drum shell 1 1 can be greater than 105 m / s.
- the arrangement according to the invention of the gear-side drum bearing between two stages of a multi-stage epicyclic gear is particularly suitable for very large decanters.
- the epicyclic gear can be provided with the arrangement of the drum bearing 5 between the gear stages on the solids-side or on the liquid-side drum end.
Landscapes
- Centrifugal Separators (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000532219A JP4212236B2 (ja) | 1998-02-17 | 1999-01-07 | マルチステージ遊星歯車列を有するスクリュー型ソリッドボウル遠心機 |
US09/622,408 US6387032B1 (en) | 1998-02-17 | 1999-01-07 | Screw-type solid bowl centrifuge with multistage planetary gear train |
DK99902523.2T DK1056545T4 (da) | 1998-02-17 | 1999-01-07 | Helkappe-snekkecentrifuge med flertrins planetgear |
DE59901620T DE59901620D1 (de) | 1998-02-17 | 1999-01-07 | Vollmantel-schneckenzentrifuge mit mehrstufigem umlaufgetriebe |
EP99902523A EP1056545B2 (de) | 1998-02-17 | 1999-01-07 | Vollmantel-schneckenzentrifuge mit mehrstufigem umlaufgetriebe |
NO20004078A NO319825B1 (no) | 1998-02-17 | 2000-08-15 | Fullmantel-skruesentrifuge med et flertrinns planetgir |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19806374.1 | 1998-02-17 | ||
DE19806374A DE19806374C1 (de) | 1998-02-17 | 1998-02-17 | Vollmantel-Schneckenzentrifuge mit mehrstufigem Umlaufgetriebe |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999042220A1 true WO1999042220A1 (de) | 1999-08-26 |
Family
ID=7857905
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1999/000055 WO1999042220A1 (de) | 1998-02-17 | 1999-01-07 | Vollmantel-schneckenzentrifuge mit mehrstufigem umlaufgetriebe |
Country Status (7)
Country | Link |
---|---|
US (1) | US6387032B1 (de) |
EP (1) | EP1056545B2 (de) |
JP (1) | JP4212236B2 (de) |
DE (2) | DE19806374C1 (de) |
DK (1) | DK1056545T4 (de) |
NO (1) | NO319825B1 (de) |
WO (1) | WO1999042220A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002098567A1 (en) * | 2001-05-30 | 2002-12-12 | Alfa Laval, Inc. | Decanter centrifuge with a gear box mounted on the bowl |
US8808154B2 (en) * | 2010-09-13 | 2014-08-19 | Hiller Gmbh | Drive apparatus in a scroll centrifuge having a gearbox with a housing nonrotatably connected to a drive shaft |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3768908B2 (ja) | 2001-03-27 | 2006-04-19 | キヤノン株式会社 | 電子放出素子、電子源、画像形成装置 |
ATE309049T1 (de) * | 2003-05-19 | 2005-11-15 | Andritz Guinard S A S | Antriebssystem von einer zentrifuge |
DE102006028803A1 (de) * | 2006-06-23 | 2007-12-27 | Westfalia Separator Ag | Schneckenzentrifuge |
DE102006028804A1 (de) † | 2006-06-23 | 2007-12-27 | Westfalia Separator Ag | Schneckenzentrifuge mit Antriebsvorrichtung |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3142779A1 (de) * | 1981-10-28 | 1983-05-11 | Werner Prof. Dr. 6740 Landau Stahl | Dekantier-zentrifuge |
EP0271898A1 (de) * | 1986-12-17 | 1988-06-22 | Aktieselskabet De Danske Sukkerfabrikker | Getriebe mit koaxial angeordneter Antriebs- und Abtriebswelle |
EP0409791A1 (de) * | 1989-07-21 | 1991-01-23 | Elatronic Ag | Antrieb an einer Dekantierzentrifuge |
Family Cites Families (39)
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DE202812C (de) * | ||||
US1572612A (en) * | 1925-06-02 | 1926-02-09 | Laughlin Filter Corp | Centrifugal separator |
US1655426A (en) * | 1926-02-23 | 1928-01-10 | Laughlin Filter Corp | Centrifugal machine |
US1710315A (en) * | 1926-10-30 | 1929-04-23 | Laughlin Filter Corp | Centrifugal separator |
US1882383A (en) * | 1930-08-11 | 1932-10-11 | Hallitt William | Continuous discharge centrifugal machine |
US1962461A (en) * | 1933-04-10 | 1934-06-12 | Eric G Piper | Differential drive for centrifuges and scrapers |
US2043661A (en) * | 1934-08-10 | 1936-06-09 | Andrew F Howe | Centrifugal driving mechanism |
US2458706A (en) * | 1945-05-14 | 1949-01-11 | Centrifugal & Mechanical Ind I | Differential gearing for centrifugal machines |
US2649816A (en) * | 1949-03-31 | 1953-08-25 | Knowles Associates | Transmission and reaction torque device |
GB776263A (en) * | 1952-05-19 | 1957-06-05 | Int Comb Ltd | Improvements in or relating to centrifuging machines |
DE1031221B (de) * | 1954-02-13 | 1958-05-29 | Paul Spiess Dr | Antrieb fuer die Austragschnecke einer Schneckenzentrifuge |
NL190819C (nl) * | 1954-09-16 | Nuovo Pignone Spa | Snelheidsvariator voor een dobby-getouw. | |
US3061181A (en) * | 1958-11-28 | 1962-10-30 | Sharples Corp | Centrifuges |
DE1087086B (de) * | 1959-03-28 | 1960-08-11 | Krupp Dolberg G M B H | Schneckenzentrifuge |
US3187997A (en) * | 1962-02-12 | 1965-06-08 | Ametek Inc | Horizontal type centrifugal separator |
US3290962A (en) * | 1962-10-17 | 1966-12-13 | Giddings & Lewis | Planetary transmission |
DE1532706A1 (de) * | 1967-03-10 | 1970-07-09 | Hitachi Shipbuilding Eng Co | Zentrifugalvorrichtung mit Differentialgetriebe |
US3428247A (en) * | 1967-09-26 | 1969-02-18 | Combustion Eng | Centrifuge lubricating and seal system |
US3419211A (en) * | 1967-10-23 | 1968-12-31 | Hitachi Shipbuilding Eng Co | Centrifugal machine with differential drive |
DE1918130C3 (de) * | 1968-04-18 | 1980-06-12 | Mario De Dr.-Ing. Genua Martini (Italien) | Vollmantel-Schneckenzentrifuge |
FR2070485A5 (en) * | 1969-12-05 | 1971-09-10 | Defontenay Paul | Control system for centrifuge - to produce differential rotation |
US3734399A (en) * | 1971-05-28 | 1973-05-22 | Beloit Corp | Differential scroll drive |
CH566817A5 (de) * | 1973-07-21 | 1975-09-30 | Cyphelly Ivan J | |
US4132131A (en) * | 1977-07-14 | 1979-01-02 | Curtiss-Wright Corporation | Free-floating planetary transmission with contra-rotating dual output shafts |
US4129249A (en) * | 1977-08-17 | 1978-12-12 | Baker Perkins Inc. | Centrifuge for separating solids and liquids |
DE2811887C2 (de) * | 1978-03-18 | 1991-07-18 | Westfalia Separator Ag, 4740 Oelde | Antrieb für eine kontinuierlich arbeitende Schneckenzentrifuge |
DE2849547A1 (de) * | 1978-11-15 | 1980-05-22 | Kloeckner Humboldt Deutz Ag | Schneckenzentrifuge |
SU1168293A1 (ru) * | 1982-10-20 | 1985-07-23 | Комплексный Научно-Исследовательский И Проектно-Технологический Институт Обогащения Твердых Горючих Ископаемых | Фильтрующа центрифуга |
FR2610058A1 (fr) * | 1987-01-26 | 1988-07-29 | Maag France | Dispositif de transmission de puissance avec reduction de vitesse entre un ensemble tournant et un arbre monte coaxial a l'interieur de celui-ci |
FR2665377B1 (fr) * | 1990-08-02 | 1993-09-03 | Guinard Centrifugation | Decanteuse centrifuge a recuperation d'energie. |
DE4028441A1 (de) * | 1990-09-07 | 1992-03-12 | Westfalia Separator Ag | Antrieb fuer eine kontinuierlich arbeitende schneckenzentrifuge |
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-
1998
- 1998-02-17 DE DE19806374A patent/DE19806374C1/de not_active Revoked
-
1999
- 1999-01-07 DK DK99902523.2T patent/DK1056545T4/da active
- 1999-01-07 DE DE59901620T patent/DE59901620D1/de not_active Expired - Lifetime
- 1999-01-07 WO PCT/EP1999/000055 patent/WO1999042220A1/de active IP Right Grant
- 1999-01-07 US US09/622,408 patent/US6387032B1/en not_active Expired - Lifetime
- 1999-01-07 EP EP99902523A patent/EP1056545B2/de not_active Expired - Lifetime
- 1999-01-07 JP JP2000532219A patent/JP4212236B2/ja not_active Expired - Fee Related
-
2000
- 2000-08-15 NO NO20004078A patent/NO319825B1/no not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3142779A1 (de) * | 1981-10-28 | 1983-05-11 | Werner Prof. Dr. 6740 Landau Stahl | Dekantier-zentrifuge |
EP0271898A1 (de) * | 1986-12-17 | 1988-06-22 | Aktieselskabet De Danske Sukkerfabrikker | Getriebe mit koaxial angeordneter Antriebs- und Abtriebswelle |
EP0409791A1 (de) * | 1989-07-21 | 1991-01-23 | Elatronic Ag | Antrieb an einer Dekantierzentrifuge |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002098567A1 (en) * | 2001-05-30 | 2002-12-12 | Alfa Laval, Inc. | Decanter centrifuge with a gear box mounted on the bowl |
US8808154B2 (en) * | 2010-09-13 | 2014-08-19 | Hiller Gmbh | Drive apparatus in a scroll centrifuge having a gearbox with a housing nonrotatably connected to a drive shaft |
Also Published As
Publication number | Publication date |
---|---|
NO319825B1 (no) | 2005-09-19 |
US6387032B1 (en) | 2002-05-14 |
JP2002503549A (ja) | 2002-02-05 |
DK1056545T4 (da) | 2012-10-29 |
NO20004078L (no) | 2000-08-15 |
DE19806374C1 (de) | 1999-07-01 |
DK1056545T3 (da) | 2002-09-16 |
EP1056545B2 (de) | 2012-08-01 |
JP4212236B2 (ja) | 2009-01-21 |
EP1056545A1 (de) | 2000-12-06 |
DE59901620D1 (de) | 2002-07-11 |
EP1056545B1 (de) | 2002-06-05 |
NO20004078D0 (no) | 2000-08-15 |
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