EP1432521A1 - Vollmantel-schneckenzentrifuge mit druckgehäuse - Google Patents
Vollmantel-schneckenzentrifuge mit druckgehäuseInfo
- Publication number
- EP1432521A1 EP1432521A1 EP02762472A EP02762472A EP1432521A1 EP 1432521 A1 EP1432521 A1 EP 1432521A1 EP 02762472 A EP02762472 A EP 02762472A EP 02762472 A EP02762472 A EP 02762472A EP 1432521 A1 EP1432521 A1 EP 1432521A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drum
- solid
- bowl screw
- screw centrifuge
- 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.)
- Granted
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
- B04B11/08—Skimmers or scrapers for discharging ; Regulating thereof
- B04B11/082—Skimmers for discharging liquid
-
- 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
- B04B7/00—Elements of centrifuges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B7/00—Elements of centrifuges
- B04B7/02—Casings; Lids
-
- 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 screw centrifuge according to the preamble of claim 1.
- Drum friction between the gas molecules and the drum surface requires considerable drive power or increases the energy consumption of the centrifuge disadvantageously. Another problem is that this energy leads to heating of the gas and the rotating parts. Proportional to the increase in pressure, the wall friction increases and with it the required drive power.
- the liquid and / or the solids discharge are at least one or more openings each in a rotatable part of the solid jacket
- Screw centrifuge in particular through openings in the drum wall, and at least one of the openings is covered by a housing enclosing the drum of the solid bowl screw centrifuge only in sections, with the solid bowl screw centrifuge (at least one housing and the drum and / or other rotatable elements) Drum heads, hubs) at least one or more seals are arranged.
- the pressure-resistant (and thus essentially gas-tight) housing is preferably reduced solely to the area of the at least one (or more) solid discharge and / or the liquid discharge. Since it is no longer the entire outer drum space but only part of it that is also pressurized externally, the drive power required to operate the solid bowl screw centrifuge is reduced.
- the solid-bowl screw centrifuge can also be manufactured more cost-effectively because the pressure-resistant housings to be pressurized are smaller. It is also easier to comply with the relevant regulations for operating machines under increased pressure. Page 3
- At least one peeling disc is particularly suitable as the liquid discharge, so that no pressure housing is required in the area of the liquid discharge.
- the peeling disc could be supplemented by a special pressure housing.
- one or more housings and seals on the side of the liquid discharge which cover the at least one or more liquid discharges.
- the seals are preferably designed as mechanical seals which, for example, surround the outer circumference of the drum and / or on an axial one
- the at least one housing particularly preferably overlaps only the region of the openings on the drum. For this purpose, it is advisable to construct the at least one housing in a structurally simple and inexpensive manner.
- the at least one housing is preferably designed for an operation of more than 0.5 bar, preferably 3-6 bar.
- the circumferential speed of the seals is expediently greater than 30 m / sec.
- the temperature in the pressure range during centrifugal material processing is preferably more than 50 ° C., preferably 100 ° C. to 160 ° C. page 4
- Fig. 1 is a schematic representation of a first variant of a solid bowl '
- FIG. 2 the solid bowl screw centrifuge from FIG. 1, the high-pressure region being indicated by dots;
- FIG. 3 is a sectional view of a second variant of a solid jacket
- Screw centrifuge 4 shows a schematic diagram of a third variant of a solid jacket
- Screw centrifuge 5 is a schematic diagram of a fourth variant of full jacket
- Screw centrifuge 6 shows a basic illustration of a solid bowl screw centrifuge according to the prior art; and FIG. 7 the solid bowl screw centrifuge from FIG. 6, the high-pressure region being indicated by dotted lines.
- FIG. 1 shows a solid-bowl screw centrifuge with a drum 1 and a screw 3 arranged in the drum, which has a screw body 5 and a screw blade 7 surrounding the screw body 5 in a helical manner.
- a channel 11 for conveying / transporting a centrifugal material to be processed is formed between the screw flights 9a, 9b, ...
- bearings 4 and seals 6 are arranged at both ends of the solid-bowl screw centrifuge.
- the centrifuge has a cylindrical section 13 in its rear area in FIG. 1 and a tapered (or stepwise) section 15 in its front area adjoining in FIG. 1.
- the drum is also in axial connection with the tapered section 15 page 5
- the centrifuged material I is passed through the centrally arranged inlet pipe 19 into a distributor 21 and from there through radial openings in the distributor 21 into the centrifugal chamber 23 with the screw 3 and the drum 1 surrounding the screw 3.
- the screw 3 rotates at a somewhat lower or greater speed than the drum 1 and conveys the ejected solid S to the tapering section 15 out of the drum 1 for the solids discharge.
- the liquid L flows to the larger drum diameter at the rear end of the drum 1 and is discharged there.
- the drum 1 and / or the hubs adjacent to it are supported by bearings 25 at their axial ends in a machine frame (not shown here) and are usually provided with a hood or cover (not shown here) to protect the operating personnel from the rotating parts.
- the drum 1 is provided in its peripheral wall with at least one opening 27 pointing radially outwards.
- the areas of solid and liquid discharge are sealed off from the surroundings.
- the drum 1 of the embodiment of FIG. 1 is provided in the region of the radial openings 27 by a ring-like housing 29 here, which covers the openings axially just such that between the housing 29 - and between the inner circumference of the axial walls of the housing - and the drum 1 seals 31 - z.
- B. mechanical seals - can be arranged. In this way, a seal between the rotatable drum 1 and the stationary housing 29 is achieved.
- the liquid is drained off by means of a peeling disk 32, which ensures the sealing of the inside of the drum to the outside in this area during operation.
- the peeling disc 32 is arranged in a chamber 34 of the drum 1 which adjoins and is connected to the centrifugal space 23 and which is connected to the drum through at least one opening 35.
- Another seal 31 between the drum head 41 and the stationary peeling disk 32 (or a tubular extension of the peeling disk) can also be designed as a mechanical seal and thus also ensure the pressure resistance in this area even when it is not in motion.
- Fig. 2 the area operable under pressure is shown dotted.
- the inlet and outlet lines not shown here are designed outside the solid bowl screw centrifuge for printing.
- FIG. 3 differs from the exemplary embodiment in FIG. 1 in that the openings 27 are arranged in the axial drum wall facing the solids discharge side, the housing 29 in turn covering these axial openings 27.
- the housing 29 is also in turn ring-shaped and by means of
- FIGS. 4 and 5 differ from one another in that the solids discharge of FIG. 4 corresponds to that of FIG. 1 and the solids discharge of FIG. 5 corresponds to that of FIG. 3.
- Fig.l and Fig. 3 The difference to Fig.l and Fig. 3 is also that the liquid discharge in Fig. 4 and 5 each not through one - or more - peeling disc (s) but only through at least one or more overflow opening (s) 35 in the Solid wall facing away from the axial wall of the drum 1 is realized.
- the overflows 35 are also covered by a housing 37, seals 39 (e.g. mechanical seals) being arranged between the housing 37 and the outer drum wall - and / or corresponding other machine parts.
- seals 39 e.g. mechanical seals
- One of the seals - 39a - lies against the axial end face of the drum wall and the other - 39b - surrounds a cylindrical drum head 41 (e.g. a hub) which adjoins the outer drum wall.
- the drum heads 18, 41 and the drum 1 have been shown in one piece purely schematically. In practice, a multi-part implementation - which is known per se - is preferred.
- Figure 6 illustrates a prior art centrifuge.
- the entire drum is enclosed by a pressure-tight housing G so that the entire interior and exterior of the drum are under pressure during operation (FIG. 7).
Landscapes
- Centrifugal Separators (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10148774 | 2001-10-02 | ||
DE10148774A DE10148774B4 (de) | 2001-10-02 | 2001-10-02 | Vollmantel-Schneckenzentrifuge mit Druckgehäuse |
PCT/EP2002/009993 WO2003031073A1 (de) | 2001-10-02 | 2002-09-06 | Vollmantel-schneckenzentrifuge mit druckgehäuse |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1432521A1 true EP1432521A1 (de) | 2004-06-30 |
EP1432521B1 EP1432521B1 (de) | 2013-05-22 |
Family
ID=7701240
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02762472.5A Expired - Lifetime EP1432521B1 (de) | 2001-10-02 | 2002-09-06 | Vollmantel-schneckenzentrifuge mit druckgehäuse |
Country Status (6)
Country | Link |
---|---|
US (1) | US6986733B2 (de) |
EP (1) | EP1432521B1 (de) |
CN (1) | CN1293947C (de) |
CA (1) | CA2462585C (de) |
DE (1) | DE10148774B4 (de) |
WO (1) | WO2003031073A1 (de) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10148774B4 (de) * | 2001-10-02 | 2005-08-11 | Westfalia Separator Ag | Vollmantel-Schneckenzentrifuge mit Druckgehäuse |
DE10223802B4 (de) * | 2002-05-29 | 2005-06-09 | Westfalia Separator Ag | Vollmantel-Schneckenzentrifuge |
US7025211B2 (en) * | 2003-04-16 | 2006-04-11 | Ferrum Ag | Double pusher centrifuge |
ATE397496T1 (de) * | 2003-04-16 | 2008-06-15 | Ferrum Ag | Schubzentrifuge mit rotierbarem trichter zur vorbeschleunigung des gemisches |
DE10336350B4 (de) * | 2003-08-08 | 2007-10-31 | Westfalia Separator Ag | Vollmantel-Schneckenzentrifuge, mit Schälscheibe |
US7255670B2 (en) * | 2004-03-04 | 2007-08-14 | Hutchison Hayes, L.P. | Three phase decanter centrifuge |
DE102005027553A1 (de) * | 2005-06-14 | 2006-12-28 | Westfalia Separator Ag | Drei-Phasen-Vollmantel-Schneckenzentrifuge und Verfahren zur Regelung des Trennprozesses |
CN100372614C (zh) * | 2005-11-24 | 2008-03-05 | 张家港华大离心机制造有限公司 | 螺旋卸料过滤离心机 |
DE102006030477A1 (de) * | 2006-03-30 | 2007-10-04 | Westfalia Separator Ag | Vollmantel-Schneckenzentrifuge mit Abflußöffnungen zur Teil- und Restentleerung der Trommel |
JP4564583B2 (ja) * | 2007-12-07 | 2010-10-20 | 巴工業株式会社 | 横型遠心分離装置 |
DK200800555A (en) * | 2008-04-16 | 2009-10-17 | Alfa Laval Corp Ab | Centrifugal separator |
US8021289B2 (en) * | 2009-02-20 | 2011-09-20 | Tema Systems, Inc. | Clean-in-place decanter centrifuge |
CN101664718B (zh) * | 2009-09-09 | 2011-12-14 | 江苏华大离心机制造有限公司 | 卧式螺旋卸料沉降离心机 |
JP5220950B1 (ja) * | 2012-11-02 | 2013-06-26 | 巴工業株式会社 | 分離液噴射ノズル付き遠心分離機 |
EP2918345B1 (de) * | 2014-03-14 | 2020-02-05 | Andritz S.A.S. | Dekanterzentrifuge |
DE102014108236A1 (de) | 2014-06-12 | 2015-12-17 | Gea Mechanical Equipment Gmbh | Vollmantel-Schneckenzentrifuge und Verfahren zu deren Betrieb |
EP3398687B1 (de) * | 2017-05-04 | 2020-03-18 | Andritz S.A.S. | Dekanterzentrifuge |
CA3071898C (en) * | 2017-07-14 | 2023-03-07 | Vermeer Manufacturing Company | Hydro excavation vacuum apparatus |
DE102019126325A1 (de) * | 2019-09-30 | 2021-04-01 | Gea Mechanical Equipment Gmbh | Vollmantel-Schneckenzentrifuge |
CN112791860B (zh) * | 2021-03-26 | 2021-06-22 | 广州加泰医药科技有限公司 | 一种生物制药离心设备 |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1388992A (fr) * | 1964-01-03 | 1965-02-12 | Procédé d'extraction de l'huile contenue dans une pâte d'olives broyées et extracteur centrifuge perfectionné servant à la mise en oeuvre de ce procédé | |
US3399828A (en) * | 1966-11-25 | 1968-09-03 | Bird Machine Co | Centrifuge solids discharge receiving compartment |
DE2154558A1 (de) * | 1971-11-03 | 1973-05-10 | Georg Hiller | Vollmantelschneckenzentrifuge |
DE2212178A1 (de) * | 1972-03-14 | 1973-09-20 | Kloeckner Humboldt Deutz Ag | Spuelbare zentrifuge |
US3854658A (en) * | 1973-05-07 | 1974-12-17 | Dorr Oliver Inc | Solid bowl conveyer type centrifuge |
SE376375B (de) * | 1973-10-01 | 1975-05-26 | Alfa Laval Ab | |
US3880346A (en) * | 1974-03-25 | 1975-04-29 | Baker Perkins Inc | Centrifuge with mechanism for inhibiting the migration of separated air-entrained solids |
DE2547538A1 (de) * | 1975-10-23 | 1977-05-05 | Flottweg Werk Bruckmayer | Druckdichte vollmantel-schneckenzentrifuge |
US4141488A (en) * | 1977-08-18 | 1979-02-27 | Koninklijke Nederlandse Papierfabrieken N.W. | Centrifuge |
SE421870B (sv) * | 1978-01-12 | 1982-02-08 | Alfa Laval Separation As | Centrifugalseparator med en horisontellt lagrad rotor |
DE3545515A1 (de) * | 1985-11-08 | 1987-05-14 | Krauss Maffei Ag | Druckzentrifuge |
US4708711A (en) * | 1985-11-08 | 1987-11-24 | Krauss-Maffei A.G. | Pressure centrifuge |
DE3612919C1 (de) * | 1986-04-17 | 1987-10-29 | Westfalia Separator Ag | Vollmantel-Schneckenzentrifuge mit einer mit Feststoffaustragsoeffnungen versehenen Zentrifugentrommel |
DE3638652A1 (de) * | 1986-11-12 | 1988-06-01 | Flottweg Bird Mach Gmbh | Vollmantel-schneckenzentrifuge |
DE4315074B4 (de) * | 1993-05-06 | 2005-01-05 | Baumann-Schilp, Lucia | Verfahren und Vorrichtung zum Entwässern von Schlämmen |
DE4328369A1 (de) * | 1993-08-25 | 1995-03-02 | Kloeckner Humboldt Deutz Ag | Zentrifuge |
DE19537562A1 (de) * | 1995-10-09 | 1997-04-10 | Baumann Schilp Lucia | Gehäusedichtung für Entwässerungseinrichtung |
DE19713512C2 (de) * | 1997-04-01 | 2000-01-13 | Westfalia Separator Ag | Gehäuse einer horizontalen Vollmantel-Schneckenzentrifuge |
DE19953396C2 (de) * | 1999-11-06 | 2003-06-26 | Flottweg Gmbh | Vollmantelzentrifuge |
CN2448990Y (zh) * | 2000-09-08 | 2001-09-19 | 杭州通惠海宜电讯设备有限公司 | 复合式轴承密封圈 |
DE10148774B4 (de) * | 2001-10-02 | 2005-08-11 | Westfalia Separator Ag | Vollmantel-Schneckenzentrifuge mit Druckgehäuse |
DE10223802B4 (de) * | 2002-05-29 | 2005-06-09 | Westfalia Separator Ag | Vollmantel-Schneckenzentrifuge |
-
2001
- 2001-10-02 DE DE10148774A patent/DE10148774B4/de not_active Expired - Fee Related
-
2002
- 2002-09-06 CN CNB02819487XA patent/CN1293947C/zh not_active Expired - Fee Related
- 2002-09-06 WO PCT/EP2002/009993 patent/WO2003031073A1/de not_active Application Discontinuation
- 2002-09-06 CA CA2462585A patent/CA2462585C/en not_active Expired - Fee Related
- 2002-09-06 EP EP02762472.5A patent/EP1432521B1/de not_active Expired - Lifetime
-
2004
- 2004-04-01 US US10/816,033 patent/US6986733B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO03031073A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20040185999A1 (en) | 2004-09-23 |
WO2003031073A1 (de) | 2003-04-17 |
CA2462585A1 (en) | 2003-04-17 |
DE10148774B4 (de) | 2005-08-11 |
US6986733B2 (en) | 2006-01-17 |
CA2462585C (en) | 2010-05-04 |
EP1432521B1 (de) | 2013-05-22 |
CN1293947C (zh) | 2007-01-10 |
DE10148774A1 (de) | 2003-04-17 |
CN1564714A (zh) | 2005-01-12 |
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