EP2091657A1 - Zentrifuge, insbesondere separator, mit feststoff-austrittsdüsen - Google Patents
Zentrifuge, insbesondere separator, mit feststoff-austrittsdüsenInfo
- Publication number
- EP2091657A1 EP2091657A1 EP07822335A EP07822335A EP2091657A1 EP 2091657 A1 EP2091657 A1 EP 2091657A1 EP 07822335 A EP07822335 A EP 07822335A EP 07822335 A EP07822335 A EP 07822335A EP 2091657 A1 EP2091657 A1 EP 2091657A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drum
- bores
- centrifuge according
- outlet openings
- axis
- 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
- 239000007787 solid Substances 0.000 title claims abstract description 21
- 239000007790 solid phase Substances 0.000 claims description 3
- 239000000047 product Substances 0.000 description 8
- 239000012071 phase Substances 0.000 description 7
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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
- B04B1/10—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with discharging outlets in the plane of the maximum diameter of the bowl
- B04B1/12—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with discharging outlets in the plane of the maximum diameter of the bowl with continuous discharge
Definitions
- the invention relates to a centrifuge having a spinning drum rotatable about a rotation axis, in particular a separator having a centrifugal drum rotatable about a vertical axis of rotation, according to the preamble of claim 1.
- Such a separator is known from US 3,108,952.
- the outer wall of the centrifugal drum of this separator are in the region of the largest inner diameter of the centrifugal drum solids outlet nozzles angle 1 offset from each other.
- nozzle bodies are used in each case in bores of the drum shell, which do not extend radially outward, but are oriented obliquely to the respective radial direction in order to use the acceleration effect of emerging from the nozzle product phase, which reduces the energy required to rotate the centrifugal drum.
- the outlet nozzles are arranged inclined to the radial direction, the product jet emerging from the outlet nozzles can at least to a certain extent hit the drum outer wall or collide with it, which can cause considerable wear of the drum outer wall.
- erosion can lead to the formation of grooves in the outer drum shell, which become deeper and longer over time and thus limit the service life of the drum.
- centrifuge drum which is divided in the vertical direction several times by discs in individual centrifugal chambers, each with a double conical contour, at the largest inner diameter of each outlet openings are formed.
- DE 36 19 298 also shows a plate separator with a double-conical interior drum, are formed at its largest inner diameter Feststoffaustragsdüsen.
- tubing which is located at an axially offset in vertical setting "higher” and radially inward position of the drum from the drum.
- a product phase that contains only a small amount of solids can be guided out of the drum by a further inner radius.
- the tube is derived from a different constitution product phase than through the solids discharge nozzles.
- the invention has the object to extend the service life of the drum with simple means.
- the holes in the solids outlet nozzles in the region of the largest inner diameter in the inside single or double conical centrifugal drum are arranged entirely or at least partially in the axial or preferably vertical direction at different heights (Z axis).
- the recesses or recesses in the drum shell which lie in relation to the direction of rotation of the drum in each case behind the outlet nozzles and which are getting longer by increasing wear in use, can reach a much greater length in the circumferential direction before they reach the next outlet nozzle in the circumferential direction, as if all of the outlet openings in only one vertical height (Z-axis parallel to the axis of rotation).
- an effective wear protection of the separator drum is realized in a simple manner with which the service life of the drum or of the part of the drum which has the discharge openings can be increased. In most cases, this is the drum base, Another advantage is that this wear protection measure can also be combined as desired with other Verschl Familyschutzteil Spotify ⁇ such as coatings or wear protection elements in the outlet openings.
- the invention is primarily suitable for separators whose centrifugal drum have a vertical axis of rotation and inside and / or outside are simply or double conical, wherein the solids outlet nozzles have nozzle body, which preferably arranged in the region of the largest diameter of the centrifugal drum, in particular of are used outside in this.
- the invention can be used in separators whose outlet openings are offset by a distance relative to the largest outer circumference or outer diameter of the centrifugal drum inwardly and each have a groove-like recess or recess in extension of the outlet openings in the drum shell, which in the rule are designed wedge-shaped, so that the solid can escape with a flat, as far as possible a tangent angle.
- the outlet openings lie alternately in the circumferential direction in two mutually parallel planes, which are aligned perpendicular to the vertical or to the Z-axis and are arranged circumferentially alternately in the first plane and in the second plane, resulting in a particularly effective wear protection.
- the position and orientation of the actual holes is left unchanged and only the nozzle bodies are oriented slightly differently, so that their outlet openings are each preferably perpendicular to the vertical at different levels.
- This has the particular advantage that neither the holes nor the nozzle body must be changed in relation to known constructions. It is only necessary to orient the nozzle body differently.
- the inlet openings and also the inner openings of the openings are still at a common vertical height. This must - and this is particularly advantageous - anyway, the contour of the drum interior still not be changed.
- the holes themselves are oriented differently - e.g. in the circumferential direction alternately obliquely upwards relative to the z-axis and obliquely downwards - whereby at least the outlet openings of the nozzle bodies screwed into the bores are at a different vertical height.
- the bores lie completely - ie also in the region of their inner inlet opening in different vertical height, which also offers the inventive advantage, but a new contouring of the drum Inner sheath requires, so that the above-mentioned variant, which is exemplified in Fig. 2, is preferred.
- FIG. 1 is a perspective view of a separator drum;
- Fig. 2 different views and areas of a drum base;
- Fig. 3 conceivable wear patterns on the drum base of Fig. 2;
- FIG. 4 shows an enlarged detail of a region X of FIG. 2a; FIG. and
- Fig. 5 is a schematic diagram illustrating the principle of action of a further variant of the invention.
- FIG. 1 shows a perspective view of a separator drum 1 with a vertical axis of rotation A (see also FIGS. 2 and 3).
- the vertical height on the drum relative to the axis of rotation A is hereinafter referred to as "Z" (see Fig. 2) .
- the direction of rotation is indicated by the arrow U.
- the separator drum 1 has a drum base 2 and a drum top 3, which form a drum outer casing with a double conical geometry.
- Embodiments with simple or non-conical drums are also feasible within the scope of the invention.
- the drums can also be simple or double conical in terms of their interior.
- the separator drum 1 is preferably a separation plate package with separation plates used.
- the separator drum 1 also has an inlet pipe (not shown here) and liquid drains (also not shown here). It is preferably at least designed as a two-phase machine (solid phase, liquid phase) or as a three-phase machine (solid, liquid, liquid). It is also preferably operated continuously and in particular further preferably also continuously diverts the solid phase.
- the separator drum 1 - here the drum base 2 - is provided with a plurality of outlet nozzles.
- it is at least two, preferably a plurality of openings, in particular holes 4, interspersed.
- These holes 4 are in turn preferably in the region of the largest diameter (see FIG. 2) of the drum formed and enforce the drum shell from the drum interior to the outside.
- a sleeve-like nozzle body 5 is preferably inserted into each of the bores 4 (see, for example, Figures 2 and 4), e.g. screwed. As a result, the solids discharge is made possible from the inside of the drum,
- the drum base 2 for example in the area in which it is penetrated by the openings 4, radially in front of each opening 4 to a outwardly to the openings 4 tapering recess 6, In this way, the solid segment structure between the Nozzle body 5 minimized.
- the nozzle bodies 5 are each provided with a hole 7 extending from the interior of the drum in the direction of the drum outer space, which preferably extends in a first bore section 8 substantially radially from inside to outside and then into a bore section 9 angularly aligned with the first bore section 8 passes over (Fig. 2, 4).
- the outlet opening 10 of the bore portion 9 is preferably aligned at an angle to the radial direction R, wherein the angle ⁇ between the radial direction and the outlet opening 10 and the second bore portion 9 is preferably equal to or less than 90 °. In particular, it is between 45 ° and 90 °. Since the nozzle body 5 terminate substantially flush with the outer edge of the drum shell 1 on the outside, the outlet opening 10 is in each case offset inwards relative to the largest outer circumference or diameter of the centrifugal drum or drum shell.
- groove-like depressions or recesses 11 are formed in the drum shell at an angle to the radial direction on the production side in the extension of the second bore section 9, so that the product phase emerging from the outlet nozzles is injected as far as possible past the drum shell.
- the holes 7 of the sleeve body 5 (and possibly also the holes 4 in the drum shell, which receive the nozzle body 5) completely or at least in the region of their outlet openings 10 in the vertical direction not in a plane but in at least two or more different levels El, E2.
- the outlet openings 10 lie in two mutually parallel planes, which are aligned perpendicular to the vertical or to the Z axis. Thus, they are arranged alternately in the circumferential direction in the first plane and in the second plane. This can be seen especially in Fig. 2d.
- Fig. 5 indicates that in another variant, although the outlet openings 10 in a plane Hegen, but the holes or areas before the Austrittsöffhungen 10th are aligned so that the solid is radiated obliquely upwards and downwards in different directions, so that the service life is also extended.
- inlet openings 12 of the holes 7 are inlet openings 12 of the holes 7 in a common plane to the drum axis, so that the contour of the inner shell of the separator drum by the measure, the outlet openings 10 to be arranged in at least two or more different levels, must not be changed.
- the position and orientation of the actual holes 4 is left unchanged and only the nozzle body are oriented slightly differently, so that their outlet openings 10 are perpendicular to the vertical Z at different levels.
- the sinöffhungen 12 and also the inner mouths of the openings 4 can still be at a vertical height. Then - and this is particularly advantageous - at least the contour of the interior of the drum is still not changed.
- the holes 4 themselves are, however, differently oriented - eg in the circumferential direction alternately relative to the inner mouth obliquely upwards and obliquely downwards, which in any case the outlet openings 10 of the screwed into the holes 4 nozzle body in a different vertical height (planes El, E2, see Fig. 2) are located.
- This variant is shown inter alia in the attached Figures 2 and 3.
- a greater vertical offset of the area of the outlet openings 10 can be achieved in a simple manner than by the sole measure of the different orientation of the nozzle body 5 in the openings 4.
- these two measures can also be combined, so that they may fiction supplement according to.
- outlet openings 10 open outward in an annular region 13 of the drum, in which the drum shell has a completely or essentially constant diameter
Landscapes
- Centrifugal Separators (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006053491A DE102006053491A1 (de) | 2006-11-14 | 2006-11-14 | Zentrifuge, insbesondere Separator, mit Feststoff-Austrittsdüsen |
PCT/EP2007/062029 WO2008058883A1 (de) | 2006-11-14 | 2007-11-08 | Zentrifuge, insbesondere separator, mit feststoff-austrittsdüsen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2091657A1 true EP2091657A1 (de) | 2009-08-26 |
EP2091657B1 EP2091657B1 (de) | 2010-09-01 |
Family
ID=38904699
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07822335A Active EP2091657B1 (de) | 2006-11-14 | 2007-11-08 | Zentrifuge, insbesondere separator, mit feststoff-austrittsdüsen |
Country Status (8)
Country | Link |
---|---|
US (1) | US8419607B2 (de) |
EP (1) | EP2091657B1 (de) |
CN (1) | CN101605609B (de) |
AT (1) | ATE479503T1 (de) |
CA (1) | CA2670868C (de) |
DE (2) | DE102006053491A1 (de) |
DK (1) | DK2091657T3 (de) |
WO (1) | WO2008058883A1 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20219551U1 (de) * | 2002-12-16 | 2004-04-29 | Westfalia Separator Ag | Zentrifuge, insbesondere Separator, mit Feststoff-Austrittsdüsen |
DE102006053491A1 (de) * | 2006-11-14 | 2008-05-15 | Westfalia Separator Ag | Zentrifuge, insbesondere Separator, mit Feststoff-Austrittsdüsen |
DE102012002351A1 (de) * | 2011-11-24 | 2013-05-29 | Bma Braunschweigische Maschinenbauanstalt Ag | Diskontinuierliche Zentrifuge mit einer drehbaren Zentrifugentrommel mit einem Mantel und Verfahren zur Herstellung des Mantels |
CA2856025C (en) * | 2011-11-28 | 2017-05-16 | Alfa Laval Corporate Ab | Centrifugal separator with anti-fouling properties |
EP2962763A1 (de) * | 2014-07-04 | 2016-01-06 | Andritz Frautech S.r.l. | Düsenseparatortrommel |
CN104881067B (zh) * | 2015-06-02 | 2017-02-22 | 兰州大学 | 一种可控制不规则沙粒投射角度和速度的发射装置 |
EP3433022A4 (de) * | 2016-03-24 | 2019-03-13 | Fluid-Quip, Inc. | Zentrifugenrotor mit versetzten düsen zur verwendung in einer scheibendüsenzentrifuge |
DE102016108057B4 (de) * | 2016-04-29 | 2018-08-02 | Gea Mechanical Equipment Gmbh | Auslassdüse für eine Zentrifugentrommel, Zentrifugentrommel und Montagewerkzeug |
DK3398687T3 (da) | 2017-05-04 | 2020-04-20 | Andritz Sas | Dekantercentrifuge |
DE102021115753A1 (de) | 2021-06-17 | 2022-12-22 | Gea Westfalia Separator Group Gmbh | Zentrifugentrommel eines Düsenseparators und Düsenseparator |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT9622B (de) * | 1901-01-24 | 1902-10-25 | Olof Ohlsson | Schleudertrommel zur Ausscheidung fester Stoffe aus Flüssigkeiten. |
US2060236A (en) * | 1935-02-08 | 1936-11-10 | Ernest L Muehl | Dough kneading and cutting machine |
US2695748A (en) * | 1952-01-22 | 1954-11-30 | Merco Centrifugal Co | Centrifuge nozzle construction |
FR1598924A (de) * | 1968-07-31 | 1970-07-15 | ||
FR2180589B1 (de) * | 1972-04-21 | 1975-03-21 | Loison Robert | |
DE3619298C1 (de) * | 1986-06-07 | 1987-08-13 | Westfalia Separator Ag | Kontinuierlich arbeitende Schleudertrommel |
CA2059208C (en) * | 1992-01-13 | 1998-08-04 | Steven A. Mcalister | Continuous discharge centrifuge |
US5338284A (en) * | 1992-07-30 | 1994-08-16 | Benjamin Knelson | Centrifugal separator with substantially continuous discharge of fines |
US5586965A (en) * | 1995-05-11 | 1996-12-24 | Knelson; Benjamin V. | Centrifugal separator with conical bowl section and axially spaced recesses |
US5601523A (en) * | 1995-07-13 | 1997-02-11 | Knelson; Benjamin V. | Method of separating intermixed materials of different specific gravity with substantially intermixed discharge of fines |
US5601524A (en) * | 1995-08-04 | 1997-02-11 | Knelson; Benjamin | Method of separating intermixed materials of different specific gravity with substantially intermixed discharge of fines |
CA2238897C (en) * | 1998-05-26 | 2004-05-04 | Steven A. Mcalister | Flow control valve for continuous discharge centrifugal concentrators |
US6149572A (en) * | 1998-07-22 | 2000-11-21 | Knelson; Benjamin | Continuous centrifugal separator of heavier particulate materials from light particulate materials in a slurry |
DE20219551U1 (de) * | 2002-12-16 | 2004-04-29 | Westfalia Separator Ag | Zentrifuge, insbesondere Separator, mit Feststoff-Austrittsdüsen |
US6962560B2 (en) * | 2003-07-31 | 2005-11-08 | Knelson Patents Inc. | Continuous centrifugal separation of slurry using balls contained in a recess of a bowl |
CN2715848Y (zh) * | 2004-04-27 | 2005-08-10 | 洪光成 | 一种卧式离心机 |
CN2799080Y (zh) * | 2005-06-16 | 2006-07-26 | 洪光成 | 一种卧式离心机 |
DE102006053491A1 (de) * | 2006-11-14 | 2008-05-15 | Westfalia Separator Ag | Zentrifuge, insbesondere Separator, mit Feststoff-Austrittsdüsen |
-
2006
- 2006-11-14 DE DE102006053491A patent/DE102006053491A1/de not_active Withdrawn
-
2007
- 2007-11-08 CN CN2007800480399A patent/CN101605609B/zh active Active
- 2007-11-08 DE DE502007004957T patent/DE502007004957D1/de active Active
- 2007-11-08 CA CA2670868A patent/CA2670868C/en active Active
- 2007-11-08 DK DK07822335.1T patent/DK2091657T3/da active
- 2007-11-08 WO PCT/EP2007/062029 patent/WO2008058883A1/de active Application Filing
- 2007-11-08 EP EP07822335A patent/EP2091657B1/de active Active
- 2007-11-08 US US12/514,690 patent/US8419607B2/en active Active
- 2007-11-08 AT AT07822335T patent/ATE479503T1/de active
Non-Patent Citations (1)
Title |
---|
See references of WO2008058883A1 * |
Also Published As
Publication number | Publication date |
---|---|
DK2091657T3 (da) | 2010-12-13 |
EP2091657B1 (de) | 2010-09-01 |
DE102006053491A1 (de) | 2008-05-15 |
DE502007004957D1 (de) | 2010-10-14 |
US8419607B2 (en) | 2013-04-16 |
US20100062923A1 (en) | 2010-03-11 |
CA2670868C (en) | 2015-04-07 |
ATE479503T1 (de) | 2010-09-15 |
CN101605609B (zh) | 2012-11-14 |
CN101605609A (zh) | 2009-12-16 |
CA2670868A1 (en) | 2008-05-22 |
WO2008058883A1 (de) | 2008-05-22 |
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