• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    DISC PACKAGE, E, CENTRIFUGAL SEPARATOR The invention relates to a disc pack for a centrifugal separator and a centrifugal separator provided with a disc pack comprising a first set of separation discs and a second set of separation discs. Each set of separation discs of the first and second sets is provided with a separation surface that is inclined with respect to the radial direction. The separation discs of the first and second sets are arranged coaxially around a axis of rotation at a distance from each other, so as to form passages between each two adjacent separation discs. The separation discs of the first set have outer diameters A or smaller, and the separation discs of the second set have outer diameters B or larger, where the diameter B is smaller than the diameter A. At least two separation discs of the first set are arranged every two separation discs of the second set.
    公开号:BR112014028313B1
    申请号:R112014028313-3
    申请日:2013-05-13
    公开日:2020-06-30
    发明作者:Peter Hagqvist
    申请人:Alfa Laval Corporate Ab；
    IPC主号:
    专利说明:

    [0001] [001] The invention relates to a disc package for a centrifugal separator comprising a plurality of separation discs, each provided with a separation surface inclined in relation to the radial direction, and where the separation discs are arranged coaxially to the around an axis of rotation at a distance from each other so as to form passages between each two adjacent separation discs. The invention also relates to a centrifugal separator comprising this disc package.
    [0002] [002] Since the beginning of the development of centrifugal separators, it is known to provide each separation disc in a disc package with a flap extending radially out of the frustoconical portion of the disc, to increase the mechanical stability of the discs, see, for example , SE 22,981.
    [0003] [003] A stack of discs having a single separation disc provided with a flap extending radially outward from the rest of the separation discs of a stack of discs is also previously known, see SE 227.107. This is used to divide the disk stack into a first section, in which the light phase cleaning is optimized (operation purifier mode), and a second section, in which the heavy phase cleaning is optimized (operation concentrator mode) . Summary of the invention
    [0004] [004] An objective of the invention is to increase the separation efficiency of the centrifugal separator. In particular, it is an objective to minimize the risk of separate particles being recirculated in the separation passages interspersed with the separation discs of the disc pack. None of the documents mentioned above provides a satisfactory solution to this.
    [0005] [005] Thus, the invention relates to a disc package for a centrifugal separator, comprising a first set of separation discs and a second set of separation discs. Each separation disc of the first and second sets is provided with a separation portion having a separation surface inclined with respect to the radial direction. The separation surfaces can be a frustoconical portion of the separation discs. The angle of inclination of the separation surface can be within the range of 30-50 degrees, preferably around 40 degrees, with the radial direction.
    [0006] [006] The separation discs of the first and second sets are arranged coaxially around a axis of rotation at a distance from each other so as to form passages between each two adjacent separation discs. The separation discs are preferably arranged so that the base portions of the angled separation portions of the separation discs in the disc package are facing the same direction. The separating discs in the disc pack can be arranged so that the fluid to be separated flows radially inwards in the passages between each two adjacent separating discs of either of the two sets.
    [0007] [007] The separation discs of the first set have external diameters A or low, the separation discs of the second set have external diameters B or above, and the diameter B is greater than the diameter A. Side wall two separation discs of the first set are arranged between every two separation discs of the second set.
    [0008] [008] As a result of this, the risk of formation of currents in the separation space in the region immediately external to the disk pack is minimized. Such chains having an axial flow component can have the undesired effect of carrying particles already separated from a liquid mixture of components. The risk of separate particles being recirculated in the separation passages of the disc packs is thus minimized and the separation efficiency of the centrifugal separator is increased. The disk pack is also easy to manufacture and assemble.
    [0009] [009] The outer diameters of the separation discs of the first set may vary as long as they have an outer diameter of A or below. Alternatively, the separating discs of the first set have an outer diameter A. Similarly, the outer diameters of the separating discs of the second set can vary as long as they have an outer diameter of B or above. Alternatively, each separation disc in the second set can have an outer diameter B.
    [0010] [0010] Diameter B can be 3-15%, preferably 5-12% larger than diameter A, or diameter BB can be 14-50 mm, preferably 20-30 mm larger than diameter A. In this way, the risk of separate particles being recirculated into the separation passages of the disk pack is minimized, while maintaining an open space for radially external separation of the disk pack.
    [0011] [0011] The separating discs of the first and second sets can extend from a common internal radial position. The radial extent and inclination of the inclined separation portion can be similar on the separation discs of the two sets and on the disc package as a whole.
    [0012] [0012] The separation discs of the second set may have a flap portion formed radially outside diameter A, whose flap portion has an inclination with the radial direction that is different from the inclination in the separation portion. The radial extent of the flap portion may be 1.5 - 7.5%, preferably 2.5-6% of diameter A, or the radial extent of the flap portion may be 7-25 mm, preferably , 10-15 mm. The radial extent of the inclined separation surface can be similar for the separation discs in the first and second set.
    [0013] [0013] The angle of the flap portion in relation to the radial direction may be less than 45 degrees, preferably less than 30 degrees, more preferably less than 15 degrees, and the maximum preference being zero degrees. If the angle is close to zero or zero, that is, the flap portion is in a plane perpendicular to the axis of rotation, the flap portion acts to define a flow zone radially external to the separation discs of the first set without acting as a separation surface. In this way, the angled separation surface of each separation disc of the second set may extend to diameter A. The angle of the flap portion may be the same or may vary over the separation discs of the second set in the disc pack.
    [0014] [0014] The flap portion may be ring-shaped and the flap portion surface may be flat and formed with a continuous sheet of material surrounding the separation surface, being provided essentially without any hole or protuberance. In this way, the amount of turbulence caused by the flap portion is minimized.
    [0015] [0015] There may be 2-10, preferably, 3-5 separation discs from the first set arranged between every two separation discs from the second set. This configuration provides a particularly advantageous flow formation in the flow zone radially external to the separation discs. The total number of separation discs in the second set in relation to the total number of separation discs in the disc pack can be less than 30%, preferably less than I 25%, and above 5%, preferably above 10%. More preferably, the total number of separation discs in the second set relative to the total number of separation discs in the disc pack is within the range of 12-20%.
    [0016] [0016] A lower portion of the disc package, at the end of the package towards the base of the separation surface of the separation discs (that is, in the direction axially divergent from the separation surface of the separation discs), can be provided only with separation discs of the first set. The lower portion of the disc pack may be at least 20%, preferably at least 25%, more preferably at least 30% of the disc pack. In a disc pack having 82 discs, this lower portion can thus contain 18-26 discs. Similarly, an upper portion of the disc pack, at the end of the pack towards the top of the separation surfaces of the separation discs (ie, in the axially converging direction of the separation surface of the separation discs), can be provided with only discs separation of the first set. The upper portion of the disc pack may be at least 15%, preferably at least 20%, more preferably at least 25% of the disc pack. In a disc pack having 82 discs, this upper portion can thus contain 12-21 discs. In this way, the risk of separate particles being recirculated to the disc pack separation passages is minimized, while maintaining a desired flow in the axial ends portion of the disc pack.
    [0017] [0017] The inclined separation surface of each separation disc in the first set can extend to the outer diameter of the separation disc. In this way, the separation discs of the first set can be provided essentially without any flap portion, maximizing the separation surface.
    [0018] [0018] Each separating disc can be provided with cutouts arranged so as to distribute the fluid flow to be separated across and over the stack of discs. The separation discs of the first set can be provided with cutouts and slits that are cut and opened to the outer radius of the separation disc. This has the effect that the risk of clogging in the cutout area is minimized. The separation discs of the second set can be provided with cutouts in the form of closed holes towards the outer radius of the separation disc. This has the effect of improving the mechanical properties of the larger diameter separation discs, to be able to handle centrifugal forces. The combination of cutouts in the form of slits on the separating discs of the first set and cutouts in the form of holes on the separating discs of the second set further minimizes the risk of clogging in the area of the cutouts on the separating discs of the second set.
    [0019] [0019] The invention also relates to a centrifugal separator for separating a liquid mixture of components. Comprising a rotor enclosing a separation space in which a disc package as described is arranged. The rotor may comprise exits from the radially outer portion of the separation space for intermittent discharge of a sludge phase.
    [0020] [0020] The inner wall of the rotor can be provided with a portion of the wall, which can be tapered, and the separation discs of the second set can be arranged in the stack of discs so that there is a passage between the outer flap of each disc and the rotor wall portion of at least 1 mm, preferably at least 1.5 mm. DRAWINGS
    [0021] [0021] Figure 1 shows an embodiment of a separation disc of the type comprised by the first set in the disc package.
    [0022] [0022] A Figure 2 shows a revealed embodiment of a separation disc of the type comprised by the second set in the disc package.
    [0023] [0023] Figure 3 shows a cross section of a portion of a centrifugal separator having a disc package comprising a first and a second set of separation discs. DETAILED DESCRIPTION
    [0024] [0024] In figure 1, a separation disc 1 of the type comprised by the first set the disc package is shown, having a frustoconical separation portion 2 'with an internal and external separation surface. The separation portion is provided with a plurality of spacing member in the form of elongated seams 3 'providing distances to form passages between each two adjacent separation discs in a package formed by a stack of separation discs. The seams are attached to the outer surface of the frustoconical separation portion of the disc and distributed around the disc's circumference. The outer diameter A of the separation disc is 165 mm, and the inclined separation surface extends over the entire length of this outer diameter. In this way, the radially outer portion 4 of the separation disc forms part of the angled separation surface. The disk is provided with a plurality of slits in the form of slots 5 in this radially outer portion 4 of the separation disc, whose slits are opened towards the outer radius of the separation disc. The number of slots 5 corresponds to the number of seams and the slits are distributed around the circumference of the disc interspersed with the seams.
    [0025] [0025] In figure 2, a separation disc 6 of the type comprised by the second set in the disc package is shown, having a frustoconical separation portion 2 'with an internal and external separation surface. The separation portion is provided with a plurality of spacing member in the form of elongated seams 3 'providing distances to form passages between each two adjacent separation discs in a package formed by a stack of separation discs. The seams are attached to the outer surface of the frustoconical separation portion of the disc and distributed around the disc's circumference. The separation surface extends to diameter A, and radially external to the separation surface of the disc is provided with a flat flap 7 (that is, having an angle of zero degree with the radial direction) extending to the outer diameter of the disc. separation B. The diameter B is 185 mm and, therefore, the radial extension of the flap is L = (BA) / 2, that is, 10 mm. The diameter B is thus 12% larger than the diameter A. The disc is provided with a plurality of cutouts in the form of holes 8 in the radially outer part of the separation portion, the cutouts of which are closed towards the outer radius of the disc. of separation by means of the flap. The number of holes 8 corresponds to the number of seams, and the holes are distributed around the circumference of the disc in positions corresponding to the slits of the separation disc 1 in the first set.
    [0026] [0026] Figure 3 shows a portion of a centrifugal separator 9 for separating a liquid mixture of components, the separator having a rotor 10 supported by an axis 11 (partially shown) rotatably arranged in a frame around an axis of rotation (x). The rotor forms within itself a separation chamber 12 in which a disc pack 13 is arranged. The rotor further comprises an inlet chamber 14 formed within a distributor 1 into which a stationary inlet tube 16 extends to supply a liquid mixture of components to be separated. The inlet chamber communicates with the separation chamber via passages 17 formed in the rotor. The radially inner portion of the disc pack communicates with an outlet 18 for a lighter liquid component of the mixture. The outlet 18 is bounded by a top disc 19 provided at the upper axial end of the disc pack 13. The top disc 19 and the upper wall part of the rotor 10 delimit a passage for a denser liquid component of the mixture, the passage extending from the radially outer part of the separation space 12 to an outlet 20 for the heavier component of the liquid mixture. The rotor is further provided with outlets 21 from the radially external periphery of the separation space 12 for intermittent discharge of a sludge component of the liquid mixture comprising denser particles forming a sludge phase. The opening of the outlets 21 is controlled by means of an operational drawer 22 actuated by the operating water, as known in the art.
    [0027] [0027] The disc pack 13 comprises a first and second set of separation discs, the first set comprising separation discs 1 of the type shown in figure 1, and the second set comprising separation discs 6 of the type shown in figure 2, provided with tabs 7. The separation discs are arranged coaxially around the axis of rotation (x) at a distance from each other by means of seams 3, 3 ', so as to form passages between each two adjacent separation discs. There are three separation discs from the first set arranged between every two separation discs from the second set. The passages extend from the radially external portions of the separation discs to the radially internal portions of the separation discs. In the figure, the distance between each separation disc is exaggerated and the disc pack is schematically shown to have 28 discs. A typical disc pack comprises 82-120 discs and a typical distance between the separation discs, generated by the seams, is 0.4-0.75 mm. Thus, the typical distance H between the separation discs of the second set in the disc pack is 1.6-4.5 mm, preferably 2-4 mm.
    [0028] [0028] The cutouts in the form of slits on the separation discs 1 in the first set and the cutouts in the form of holes on the separation discs 6 in the second set are aligned in the disc pack to form distribution channels 23 for the liquid mixture .
    [0029] [0029] A lower portion of the disc pack, that is, at the end of the pack towards the base of the separation surface of the separation discs and indicated by D, is provided only with separation discs from the first set. This portion is 25% of the height of the disc pack (7 of the 28 separation discs shown) and, in a typical disc pack, this portion is 21-26 of the 82 separation discs. The spacing C, between the radially outer edge of the flap of the first (lower) separation discs of the second set and the inner wall of the rotor, is at least 1.5 mm to provide a passage for the mud towards the exits 21. Similarly , an upper portion of the disc pack, that is, at the end of the pack towards the top of the separation surface of the separation discs and indicated by E, is provided only with separation discs from the first set. The spacing F between the radially outer edge of the flap of the last (upper) separation discs of the second set and the inner wall of the rotor is at least 1.5 mm.
    [0030] [0030] One embodiment of a disc pack includes, from bottom to top, a bottom portion of 21 discs from the first set, followed by 12 discs from the second set, each having three discs from the second set first streaky set (ie, in short, 11 * 4 + 1 = 45 separation discs), and an upper portion 16 of separation discs from the first set at the top. Thus, the total number of separation discs in the second set in relation to the total number of separation discs in this shown disc pack is 12/82, which is less than 20%, but above 10%.
    权利要求:
    Claims (14)
    [0001]
    Disc package (13) for a centrifugal separator, comprising a first set of separation discs (1), a second set of separation discs (6), where each separation disc of the first and second sets is provided with a portion of separation (2, 2 ') having a surface that is inclined in relation to the radial direction, where the separation discs of the first and second sets are arranged coaxially around an axis of rotation (X) at a distance from each other, so as to form passages between each two adjacent separation discs, where the separation discs of the first set have external diameters A or smaller, where the separation discs of the second set have external diameters B or larger, where the diameter B is greater than that diameter A, and where at least two separation discs of the first set are arranged between each two separation discs of the second set, characterized by the fact that each separation disc of the second set has u a flap portion (7) formed radially external to diameter A, whose flap portion has an inclination in relation to the radial direction which is different from the inclination of the separation surface.
    [0002]
    Disc pack according to claim 1, characterized in that the diameter B is 3-15%, preferably 5-12% larger than the diameter A, or where the diameter B is preferably 14-50 mm, 20-30 mm larger than diameter A.
    [0003]
    Disc package according to claim 2, characterized in that the angle of the flap portion with respect to the radial direction is less than 45 degrees, preferably less than 30 degrees, more preferably less than 15 degrees, more preferably zero degree.
    [0004]
    Disc pack according to any of claims 1 to 3, characterized in that where 3 to 5 separation discs of the first set are arranged between each two separation discs of the second set.
    [0005]
    Disc pack according to any of claims 1 to 4, characterized in that a lower portion (D) of the disc pack, at the end of the pack towards the base of the separation surface of the separation discs, is provided only with discs of separation of the first set
    [0006]
    Disc pack according to claim 5, characterized in that the lower portion (D) of the disc pack is at least 20%, preferably at least 25%, more preferably at least 30% of the disc pack.
    [0007]
    Disc pack according to any of claims 1 to 6, characterized in that an upper portion (E) of the disc pack, at the end of the pack towards the top of the separation surface of the separation discs, is provided only with discs separation of the first set.
    [0008]
    Disc pack according to claim 7, characterized in that the upper portion (E) of the disc pack is at least 15%, preferably 20%, more preferably at least 25% of the disc pack.
    [0009]
    Disc pack according to any of claims 1 to 8, characterized in that the number of separation discs of the second set in the pack is less than 30% of the total number of separation discs in the pack.
    [0010]
    Disc pack according to any of claims 1 to 9, characterized in that the inclined separation surface of each separation disc in the set extends to the outer diameter (A) of the separation disc.
    [0011]
    Disc pack according to any of claims 1 to 10, characterized in that each separation disc is provided with cutouts (5, 8) arranged so as to distribute the fluid flow to be separated across and over the stack of discs.
    [0012]
    Disc pack according to claim 11, characterized in that the separation discs of the first set are provided with slits in the form of slits (5).
    [0013]
    Disc pack according to claim 11 or 12, characterized in that the separation discs of the first set are provided with cutouts in the form of holes (8).
    [0014]
    Centrifugal separator, characterized by the fact that it comprises a rotor (10) enclosing a separation space (12), where a disc package as defined in any one of claims 1 to 13 is arranged.
    类似技术:
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    KR0136369B1|1998-04-25|Method and plant for freeing liquid from substance dispersed therein and having lager density liquid
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    US4311270A|1982-01-19|Centrifuge
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    CN1090524A|1994-08-10|A kind of centrifugal separator
    JP2667224B2|1997-10-27|centrifuge
    US1917422A|1933-07-11|Arrangement in connection with centrifugal bowls
    JP2012143722A|2012-08-02|Foreign particle separator and system for clarifying fluid to be treated
    US2265459A|1941-12-09|Centrifugal bowl
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    SE179611C1|1962-01-01|
    SE135654C1|
    SE42636C1|
    DE557376C|1932-08-23|Ramesohl & Schmidt Akt Ges|Conical plate for centrifugal drums|
    SE20595C1|1906-03-17|
    SE186436C1|1963-01-01|
    SE70651C1|1930-01-01|
    SE115167C1|
    SE22981C1|1905-11-30|1907-08-24|Nordqvist O W|Device for centrifugal inserts|
    US1760071A|1926-09-17|1930-05-27|Standard Brands Inc|Centrifugal separator|
    GB332993A|1929-05-28|1930-08-07|Harrison Streeter Coe|Method of and apparatus for centrifugal separation|
    GB419187A|1934-02-16|1934-11-07|Arthur Merrill Hood|Improvements in or relating to centrifugal separators|
    BE407388A|1935-01-19|
    US2261724A|1938-05-17|1941-11-04|Separator Nobel Ab|Process for dewaxing hydrocarbon oils|
    FR871718A|1940-06-03|1942-05-07|Separator Ab|Discs for centrifuge bowls|
    US2403089A|1943-04-30|1946-07-02|Lars Ernest|Centrifugal separator|
    NL92809C|1947-06-13|
    US2715994A|1948-10-06|1955-08-23|Steinacker Peter|Countercurrent extraction centrifuges|
    US2622796A|1949-03-01|1952-12-23|Westfalia Separator Ag|Countercurrent extraction centrifuge|
    US2665843A|1951-06-20|1954-01-12|Separator Ab|Centrifugal bowl with conical disks having distributing holes|
    US2731331A|1953-09-25|1956-01-17|Laval Separator Co De|Countercurrent extractor bowl|
    US2787413A|1954-10-11|1957-04-02|Separator Ab|Conical disc for centrifuges and the like|
    DK114256B|1960-04-22|1969-06-09|Separator Ab|Centrifuge.|
    US3328282A|1962-02-28|1967-06-27|Pennsalt Chemicals Corp|Separation of components of liquidsolid mixtures|
    US3529767A|1962-02-28|1970-09-22|Pennwalt Corp|Centrifuge for separating solids from liquid|
    US3534903A|1962-07-09|1970-10-20|Pennwalt Corp|Centrifuge apparatus|
    US3311296A|1963-11-12|1967-03-28|Exxon Research Engineering Co|Separation apparatus|
    SE316422B|1964-04-14|1969-10-20|Ceskoslovenska Akademie Ved|
    US3279689A|1964-07-27|1966-10-18|Dorr Oliver Inc|Centrifuges|
    SE335842B|1966-12-21|1971-06-07|Dorr Oliver Inc|
    SE227107C1|1967-05-18|1969-07-29|Alfa Laval Ab|
    DE2545754C3|1975-09-03|1980-03-20|Westfalia Separator Ag, 4740 Oelde|
    DE3045672A1|1980-12-04|1982-07-08|Klöckner-Humboldt-Deutz AG, 5000 Köln|FULL-COATED CENTRIFUGE|
    JPS6335796Y2|1983-05-27|1988-09-22|
    SE450093B|1985-10-30|1987-06-09|Alfa Laval Separation Ab|CENTRIFUGAL Separator inlet device|
    FR2720958B1|1994-06-09|1996-08-30|Pierre Saget|Apparatus for separating and purifying pollution from at least one fluid mixture.|
    SE504007C2|1995-02-13|1996-10-14|Tetra Laval Holdings & Finance|Centrifugal separator inlet device|
    SE504094C2|1995-03-06|1996-11-11|Tetra Laval Holdings & Finance|Disc stack of centrifugal separator discs|
    US20060266219A1|2005-05-26|2006-11-30|Texaco Ovonic Hydrogen Systems Llc|Metal hydride hydrogen storage system|
    EP1651352B1|2003-08-08|2008-04-23|Westfalia Separator AG|Separator comprising a spinning drum with a disc stack|
    DE102004057411A1|2004-11-26|2006-06-08|Mahle Filtersysteme Gmbh|disk separator|
    SE530690C2|2006-04-04|2008-08-12|Alfa Laval Corp Ab|Rotor unit for a centrifugal separator|
    SE532153C2|2008-04-08|2009-11-03|Alfa Laval Corp Ab|Separation disc and separator|
    DE102008023383A1|2008-05-13|2009-11-19|Gea Westfalia Separator Gmbh|Centrifuge with a drum provided with a separator plate package|
    SE532912C2|2008-09-30|2010-05-04|Alfa Laval Corp Ab|Separation disc for a centrifuge rotor and disc package|
    SE532915C2|2008-09-30|2010-05-04|Alfa Laval Corp Ab|Centrifuge rotor disk package|
    DE102009019392A1|2009-04-29|2010-11-11|Gea Westfalia Separator Gmbh|separator|
    JP4794652B2|2009-05-11|2011-10-19|定男 篠原|Separator plate centrifuge and its separator plate|
    JP4921521B2|2009-05-29|2012-04-25|定男 篠原|Separation plate manufacturing method for separation plate type centrifuge|
    SE536671C2|2012-04-23|2014-05-13|3Nine Ab|Tapered disc elements for a rotor for centrifugal separators and rotors containing such disc elements|
    EP3178565B1|2012-05-14|2018-06-27|Alfa Laval Corporate AB|Disc stack for centrifugal separator|
    EP2730339B1|2012-11-08|2018-07-25|Alfa Laval Corporate AB|A centrifugal separator|
    DE102013101654A1|2013-02-20|2014-08-21|Gea Mechanical Equipment Gmbh|Separator disc package|SE530690C2|2006-04-04|2008-08-12|Alfa Laval Corp Ab|Rotor unit for a centrifugal separator|
    EP2556895B1|2011-08-10|2018-06-27|Alfa Laval Corporate AB|A separation disc for a centrifugal separator and a method for manufacturing the separation disc|
    SE536671C2|2012-04-23|2014-05-13|3Nine Ab|Tapered disc elements for a rotor for centrifugal separators and rotors containing such disc elements|
    EP3178565B1|2012-05-14|2018-06-27|Alfa Laval Corporate AB|Disc stack for centrifugal separator|
    EP2730339B1|2012-11-08|2018-07-25|Alfa Laval Corporate AB|A centrifugal separator|
    EP2946836B1|2014-05-23|2020-02-19|Alfa Laval Corporate AB|A centrifugal separator|
    SE539191C2|2014-08-21|2017-05-09|Hofstedt Anders|Method and apparatus for separating two phases|
    EP3050629A1|2015-01-30|2016-08-03|Andritz S.A.S.|Solid bowl centrifuge|
    EP3085450B1|2015-04-24|2020-02-26|Alfa Laval Corporate AB|Centrifugal separator with disc stack|
    CN105107642B|2015-09-18|2018-05-08|威海戥同测试设备有限公司|A kind of centrifugal oil purifier disk|
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    法律状态:
    2018-12-04| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-11-12| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2020-05-05| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2020-06-30| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 13/05/2013, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    EP12167858.5|2012-05-14|
    EP12167858.5A|EP2664385B1|2012-05-14|2012-05-14|A disc package for a centrifugal separator|
    PCT/EP2013/059815|WO2013171160A1|2012-05-14|2013-05-13|A disc package for a centrifugal separator|
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