WO2006131425A1 - Schneckenzentrifuge - Google Patents
Schneckenzentrifuge Download PDFInfo
- Publication number
- WO2006131425A1 WO2006131425A1 PCT/EP2006/062026 EP2006062026W WO2006131425A1 WO 2006131425 A1 WO2006131425 A1 WO 2006131425A1 EP 2006062026 W EP2006062026 W EP 2006062026W WO 2006131425 A1 WO2006131425 A1 WO 2006131425A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hollow shaft
- screw
- inlet pipe
- centrifuge according
- screw centrifuge
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B11/00—Feeding, charging, or discharging bowls
- B04B11/06—Arrangement of distributors or collectors in centrifuges
-
- 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
- B04B2001/2033—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 feed accelerator inside the conveying screw
Definitions
- the invention relates to a screw centrifuge for continuously separating flowable substances of different densities according to the preamble of patent claim 1.
- the invention has for its object to improve a worm centrifuge of the specified type so that the risk of backflow at the end of the inlet pipe effective be prevented, so that the risk of deposits by refluxing mixture is effectively prevented.
- the inlet pipe passes through a protective tube which delimits the annular space from the cavity of the hollow shaft, the suction flow is considerably accelerated due to the relatively small cross section of the annular space, which counteracts an undesirable reflux even more efficiently.
- the Luftabsaugorgan has a central inlet region into which the feed chamber leading end of the inlet pipe protrudes, wherein the shipsabsaugorgan can be designed for a structurally very simple and inexpensive solution as impeller part of a centrifugal pump.
- This impeller part may be formed integrally with the hollow shaft and has suction channels, which emanate from the central inlet region and lead with opposite to the direction of rotation of the hollow shaft curved course to the spiral screw.
- FIG. 1 shows a schematic longitudinal section through a screw centrifuge according to the
- Figure 2 is an enlarged partial view of the screw conveyor in the region of the feed chamber corresponding to the section II-II of Figure 3 and
- FIG. 1 it can be seen that in a partially indicated housing 10 in bearings 12, a rotor drum 14 is rotatably mounted, which is driven by a motor 16.
- the rotor drum 14 is composed of a cylindrical portion 18 and a conical portion 20.
- a screw conveyor 22 is rotatably mounted, which is driven by a motor 24 at a generally slightly higher speed than the rotor drum 14.
- the worm gear 26 of the screw conveyor 24 is mounted on a hollow shaft 28 and arranged so that the conveying direction from the cylindrical portion 18 to the conical portion 20 takes place.
- a feed pipe 30 is arranged for the mixture to be separated, which enters in the direction of arrow 32 in the inlet pipe 30.
- the inlet pipe 30 extends through a coaxial protective tube 34, which is fixedly connected to the hollow shaft 28 and the cavity 36 of the hollow shaft 28 delimits from the annular space 38, which includes the inlet pipe 30.
- the free end 40 of the feed tube 30 leads into a feed chamber 42 formed in the hollow shaft 28, from which radial feed openings 44 lead into the area of the screw helix 26.
- the cylindrical portion 18 of the rotor drum 14 is closed by an end wall 46 which has weirs 48 for the discharge of the light phase 50, which flows into a discharge line 52 of the housing 10.
- discharge openings 54 are provided for the heavy phase 56, which is transported according to the arrows shown by the worm gear 26 to the Austragsöffhungen 54.
- a Luftabsaugorgan 58 is provided which has a central inlet region 60, into which the feed chamber 42 leading end 40 of the feed pipe 30 protrudes .
- the Heilabsaugorgan 58 is, as is apparent in particular from Figure 3, as impeller part 62 of a centrifugal pump and integrally formed with the hollow shaft 28.
- the impeller part 62 has suction channels 64, which start from the central inlet region 60 and, with a curved course opposite to the direction of rotation r (see FIG. 3) of the hollow shaft 28, lead to the helix 26.
- the suction channels 64 are, as shown in FIGS. 2 and 3, incorporated in the hollow shaft 28.
- suction flow generated according to the invention in the direction of the dashed arrows represent a support to realize high throughputs V, so that a large partial volume flow Vl is pressed by the centrifugal pump system under pressure in the area of the screw helix 26.
Landscapes
- Centrifugal Separators (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/915,384 US7862493B2 (en) | 2005-06-04 | 2006-05-03 | Centrifuge for continuous separation of flowable substances of different densities having an air extraction member |
AT06754987T ATE490026T1 (de) | 2005-06-04 | 2006-05-03 | Schneckenzentrifuge |
JP2008514052A JP2008542011A (ja) | 2005-06-04 | 2006-05-03 | スクリュデカンタ型遠心分離機 |
EP06754987A EP1899074B1 (de) | 2005-06-04 | 2006-05-03 | Schneckenzentrifuge |
DE502006008446T DE502006008446D1 (de) | 2005-06-04 | 2006-05-03 | Schneckenzentrifuge |
CN2006800197691A CN101237939B (zh) | 2005-06-04 | 2006-05-03 | 螺旋式离心机 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005025784A DE102005025784A1 (de) | 2005-06-04 | 2005-06-04 | Schneckenzentrifuge |
DE102005025784.4 | 2005-06-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006131425A1 true WO2006131425A1 (de) | 2006-12-14 |
Family
ID=36808365
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2006/062026 WO2006131425A1 (de) | 2005-06-04 | 2006-05-03 | Schneckenzentrifuge |
Country Status (8)
Country | Link |
---|---|
US (1) | US7862493B2 (de) |
EP (1) | EP1899074B1 (de) |
JP (1) | JP2008542011A (de) |
KR (1) | KR20080015505A (de) |
CN (1) | CN101237939B (de) |
AT (1) | ATE490026T1 (de) |
DE (2) | DE102005025784A1 (de) |
WO (1) | WO2006131425A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103813815A (zh) * | 2011-08-10 | 2014-05-21 | 柏林心脏有限公司 | 包括转子和输送元件的旋转泵 |
CN105753290A (zh) * | 2016-04-07 | 2016-07-13 | 安徽普源分离机械制造有限公司 | 一种环保型自来水污泥高效离心设备 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DK200970026A (en) * | 2009-06-12 | 2010-12-13 | Alfa Laval Corp Ab | A centrifugal separator |
CN103447167A (zh) * | 2013-08-12 | 2013-12-18 | 江苏捷达离心机制造有限公司 | 卧式螺旋卸料沉降离心机用布料加速器 |
CN103639075A (zh) * | 2013-12-18 | 2014-03-19 | 常州普莱克红梅色母料有限公司 | 一种色母料生产用离心脱水装置 |
DK3106230T3 (da) * | 2015-06-19 | 2020-04-14 | Andritz Sas | Dekantercentrifuge |
DE202017104036U1 (de) * | 2017-07-06 | 2018-10-09 | Gea Mechanical Equipment Gmbh | Vollmantel-Schneckenzentrifuge |
CN110142149B (zh) * | 2019-05-29 | 2024-05-03 | 浙江工业大学 | 一种卧螺离心机用复合型排气结构 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4217801A1 (de) * | 1992-05-29 | 1993-12-02 | Kloeckner Humboldt Deutz Ag | Radialwellendichtung |
US5403486A (en) * | 1991-12-31 | 1995-04-04 | Baker Hughes Incorporated | Accelerator system in a centrifuge |
WO2002034406A1 (en) | 2000-10-20 | 2002-05-02 | Alfa Laval Inc. | Pump vanes for a decanter centrifuge feed chamber |
Family Cites Families (32)
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US2679974A (en) * | 1947-01-15 | 1954-06-01 | Sharples Corp | Bearing construction for continuous centrifuge |
US2703676A (en) * | 1947-01-15 | 1955-03-08 | Sharples Corp | Solids discharge mechanism for centrifuges |
US3096282A (en) * | 1957-12-30 | 1963-07-02 | Sharples Corp | Improvement in centrifuges |
US3228592A (en) * | 1963-11-18 | 1966-01-11 | Pennsalt Chemicals Corp | Non-spilling feed means for vertical centrifuge |
US3398888A (en) * | 1966-08-18 | 1968-08-27 | Ethyl Corp | Centrifuge with improved discharge assembly |
US3428246A (en) * | 1967-12-21 | 1969-02-18 | Pennsalt Chemicals Corp | Centrifuge apparatus |
DK118068B (da) * | 1968-01-10 | 1970-06-29 | Titan Separator As | Centrifuge. |
DE2057555C3 (de) * | 1970-11-23 | 1975-06-05 | Werner 8000 Muenchen Busch | Schneckenzentrifuge |
DE2152839A1 (de) * | 1971-10-23 | 1973-04-26 | Kloeckner Humboldt Deutz Ag | Gleichstrom-vollmantelzentrifuge mit beschleunigungskoerper |
DE3723864A1 (de) * | 1987-07-18 | 1989-01-26 | Westfalia Separator Ag | Vollmantel-schneckenzentrifuge |
JP2540198B2 (ja) * | 1988-12-08 | 1996-10-02 | アルファーラバル エービー | デカンタ型遠心分離機を用いる汚泥の脱水方法および装置 |
US5374234A (en) * | 1990-03-13 | 1994-12-20 | Alfa-Laval Separation A/S | Decanter centrifuge with energy dissipating inlet |
US5380266A (en) * | 1991-11-27 | 1995-01-10 | Baker Hughes Incorporated | Feed accelerator system including accelerator cone |
US5401423A (en) * | 1991-11-27 | 1995-03-28 | Baker Hughes Incorporated | Feed accelerator system including accelerator disc |
WO1993010905A1 (en) * | 1991-11-27 | 1993-06-10 | Baker Hughes Incorporated | Feed accelerator system including feed slurry accelerating nozzle apparatus |
AU3324793A (en) * | 1991-12-31 | 1993-07-28 | Baker Hughes Incorporated | Feed accelerator system including accelerating vane apparatus |
US5354255A (en) * | 1992-12-17 | 1994-10-11 | Alfa Laval Separation Inc. | Decanter centrifuge with conveyor capable of high speed and higher flow rates |
US5364335A (en) * | 1993-12-07 | 1994-11-15 | Dorr-Oliver Incorporated | Disc-decanter centrifuge |
GB9611209D0 (en) * | 1996-05-29 | 1996-07-31 | Ecc Int Ltd | Decanter centrifuge |
US5971907A (en) * | 1998-05-19 | 1999-10-26 | Bp Amoco Corporation | Continuous centrifugal separator with tapered internal feed distributor |
US6605029B1 (en) * | 2000-08-31 | 2003-08-12 | Tuboscope I/P, Inc. | Centrifuge with open conveyor and methods of use |
US7018326B2 (en) * | 2000-08-31 | 2006-03-28 | Varco I/P, Inc. | Centrifuge with impellers and beach feed |
US6780147B2 (en) * | 2000-08-31 | 2004-08-24 | Varco I/P, Inc. | Centrifuge with open conveyor having an accelerating impeller and flow enhancer |
US6790169B2 (en) * | 2000-08-31 | 2004-09-14 | Varco I/P, Inc. | Centrifuge with feed tube adapter |
WO2002040175A1 (de) * | 2000-11-14 | 2002-05-23 | Westfalia Separator Industry Gmbh | Vollmantel-schneckenzentrifuge mit verteiler |
DK175539B1 (da) * | 2002-03-14 | 2004-11-29 | Alfa Laval Copenhagen As | Dekantercentrifuge med slidforstærkning i indlöb |
DE10212187A1 (de) * | 2002-03-20 | 2003-10-02 | Hiller Gmbh | Schneckenzentrifuge |
US7001324B2 (en) * | 2003-01-08 | 2006-02-21 | Hutchison Hayes, L. P. | Method of retrofitting a decanting centrifuge |
JP2004290833A (ja) * | 2003-03-27 | 2004-10-21 | Tsukishima Kikai Co Ltd | デカンタ型遠心脱水装置 |
JP3974067B2 (ja) * | 2003-03-27 | 2007-09-12 | 月島機械株式会社 | デカンタ型遠心脱水装置 |
US20050245381A1 (en) * | 2004-04-30 | 2005-11-03 | National-Oilwell, L.P. | Centrifuge accelerator system |
CA2505236C (en) * | 2005-04-25 | 2007-11-20 | Edward Carl Lantz | Centrifuge with shaping of feed chamber to reduce wear |
-
2005
- 2005-06-04 DE DE102005025784A patent/DE102005025784A1/de not_active Withdrawn
-
2006
- 2006-05-03 WO PCT/EP2006/062026 patent/WO2006131425A1/de active Application Filing
- 2006-05-03 US US11/915,384 patent/US7862493B2/en not_active Expired - Fee Related
- 2006-05-03 KR KR1020087000329A patent/KR20080015505A/ko not_active Application Discontinuation
- 2006-05-03 CN CN2006800197691A patent/CN101237939B/zh not_active Expired - Fee Related
- 2006-05-03 DE DE502006008446T patent/DE502006008446D1/de active Active
- 2006-05-03 JP JP2008514052A patent/JP2008542011A/ja not_active Withdrawn
- 2006-05-03 AT AT06754987T patent/ATE490026T1/de active
- 2006-05-03 EP EP06754987A patent/EP1899074B1/de not_active Not-in-force
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5403486A (en) * | 1991-12-31 | 1995-04-04 | Baker Hughes Incorporated | Accelerator system in a centrifuge |
DE4217801A1 (de) * | 1992-05-29 | 1993-12-02 | Kloeckner Humboldt Deutz Ag | Radialwellendichtung |
WO2002034406A1 (en) | 2000-10-20 | 2002-05-02 | Alfa Laval Inc. | Pump vanes for a decanter centrifuge feed chamber |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103813815A (zh) * | 2011-08-10 | 2014-05-21 | 柏林心脏有限公司 | 包括转子和输送元件的旋转泵 |
US9995310B2 (en) | 2011-08-10 | 2018-06-12 | Berlin Heart Gmbh | Rotary pump comprising a rotor and delivery elements |
CN105753290A (zh) * | 2016-04-07 | 2016-07-13 | 安徽普源分离机械制造有限公司 | 一种环保型自来水污泥高效离心设备 |
CN105753290B (zh) * | 2016-04-07 | 2019-04-30 | 安徽普源分离机械制造有限公司 | 一种环保型自来水污泥高效离心设备 |
Also Published As
Publication number | Publication date |
---|---|
DE502006008446D1 (de) | 2011-01-13 |
ATE490026T1 (de) | 2010-12-15 |
JP2008542011A (ja) | 2008-11-27 |
CN101237939B (zh) | 2011-07-06 |
US20090215604A1 (en) | 2009-08-27 |
EP1899074B1 (de) | 2010-12-01 |
DE102005025784A1 (de) | 2006-12-07 |
EP1899074A1 (de) | 2008-03-19 |
CN101237939A (zh) | 2008-08-06 |
KR20080015505A (ko) | 2008-02-19 |
US7862493B2 (en) | 2011-01-04 |
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