• 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:
    For adapting a disc filter element of a rotatable disc filter to varying flow conditions the fluid tight filter element body (11, 12) is provided with openings (34-39), the number of which is increased with increasing flow capacity through the filter means (17) of the filter element. Also, with increasing flow capacity the openings of the increasing number of openings are located at increasing distances from the vacuum connection (29) of the filter element. In order to prevent filtrate from entering portions of the interior of the filter element body beyond the most distant opening (39), as seen from the vacuum connection (29), such portions of the interior space of the filter element body are sealingly shut off from the remainder of the interior space.
    公开号:SU1715194A3
    申请号:SU864020677
    申请日:1986-02-19
    公开日:1992-02-23
    发明作者:Нильссон Бьярне
    申请人:Nilsson Bjarne；
    IPC主号:
    专利说明:

    This invention relates to fluid filtration, in particular to rotary disk vacuum filters.
    The purpose of the invention is to preserve the filtration efficiency while reducing the load.
    FIG. 1 shows a sector with a partially removed filter material; general view; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. 2; in fig. 4 shows a section B-B in FIG. 2: in FIG. 5 is a section of YYD in FIG. 3
    The sector contains a rim 1 having means 2 for connecting the internal cavity of the sector with a vacuum source, two perforated decks 3 and 4, between decks there are ribs 5-8, the height of which increases in the direction of means 2. Decks 3 and 4 are made with ridges 9 and 10 to support the filter media 11. Decks 3 and 4 are attached to the ribs between the ridges by any means of joint, for example, spot welding in the case of stainless steel parts or gluing, if synthetic material is used. The connection of ribs and decks by spot welding is shown in FIG. 3. The rim has a plate 12, which is hermetically attached to decks 3 and 4 and to the ends of the ridges 9 and 10. The hole 12 is made in the plate 12. The filter material 11 covers the sector surface and fastens the plate 12 with the flange 15 by means of screws 14. -8 are made with holes 16-19, respectively, having areas increasing towards hole 13. Crests and decks form channels 20. In areas between crests 9 and 10 of dec. 3 and 4, holes 21 are made, the number and location of which can vary according to fil load pa.
    Thus, it is possible to determine the first extreme variant, when each channel 20, located between ridges 9 and 10, has only one hole 21, made as close as possible to plate 12 with hole 13. This design corresponds to
    minimum filtrate flow. With an increase in the power of flow through the filtering material 11 and in the presence of a precipitate on it after filtration, there is a need for a corresponding increase in the flow rate of the filtrate. To ensure the passage of this filtrate, a larger number of holes are required, for which holes 21-26 are made. The second extreme variant for the maximum flow corresponds to the variant in which virtually all the surfaces of the ribs are made with holes. Between these limiting options, there may be various embodiments of the holes, for example, 21-24.
    In order to avoid the case when the entire cavity of the sector is filled with a filtrate when the vacuum is turned off, which leads to rewetting the sediment, part of the sector cavity is isolated from the rest of the sector by sealing these cavities in any way.
    In a sector having rows of holes 21-26, for example, the edge 7 can be replaced or supplemented with elements that provide sealing relative to the space leading to the plate 12, or the peripheral cavity of the sector can be filled with filler. In this case, precautions must be taken to ensure also communication with openings made in the side surface 27 of the rim 1.
    Holes 21-26 may have any shape, for example, oval, round or semicircular. In addition, the holes can be made with elements directing the flow into the cavity of the sector. The implementation of these elements is shown in FIG. 5, these elements can be made in the form of edges 28 and 29, bent up or down. In addition, the holes 21-26 can be offset
    relative to each other between decks 3 and 4 so that the flow from one hole does not collide with opposite flow. The perforations on decks 3 and 4 overlap in sector zones by means of a compound (not shown).
    The work of the sector is as follows.
    The sector is connected to the filter rotor, a vacuum source is connected and allowed into the
    operation of the filter for a given performance, in the case of a decrease in the latter, the peripheral cavity of the sector is filled with a compound.
    权利要求:
    Claims (1)
    [1]
    Invention Formula
    Sector for a rotary disc vacuum filter containing a rim with perforated decks, filter media and means for removing the filtrate and for connecting the internal cavity
    housing with a vacuum source, characterized in that, in order to preserve the efficiency of the filtration process while reducing the load, the sector is configured to block the perforations of the peripheral zones of the decompound,
    77, 5 //
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    类似技术:
    公开号 | 公开日 | 专利标题
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    US5050264A|1991-09-24|Universal airflow vacuum cleaner module
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    MXPA01010056A|2002-07-30|Dual-flow filter assembly with improved center-tube sealing grommet.
    SU1756646A1|1992-08-23|Working wheel of centrifugal pump
    SE8600379D0|1986-01-29|FILTER DEVICE
    同族专利:
    公开号 | 公开日
    FI860538A0|1986-02-06|
    DE3662233D1|1989-04-13|
    SE453158B|1988-01-18|
    US4686040A|1987-08-11|
    JPS61192315A|1986-08-26|
    BG48455A3|1991-02-15|
    NO860601L|1986-08-21|
    NO161781C|1989-09-27|
    EP0192620A1|1986-08-27|
    CA1264679A|1990-01-23|
    SE8500826D0|1985-02-20|
    FI81270C|1990-10-10|
    SE8500826L|1986-08-21|
    NO161781B|1989-06-19|
    JPH067889B2|1994-02-02|
    BR8600647A|1986-10-29|
    AT41105T|1989-03-15|
    FI81270B|1990-06-29|
    AU5292886A|1986-08-28|
    HUT45911A|1988-09-28|
    HU198267B|1989-09-28|
    AU582211B2|1989-03-16|
    FI860538A|1986-08-21|
    EP0192620B1|1989-03-08|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2457012C2|2010-03-23|2012-07-27|Михаил Александрович Ланцевич|Method of fabricating disc vacuum filter sector|
    RU2757284C2|2017-06-02|2021-10-12|Нордик Вотер Продактс Аб|Filter disk|DE587642C|1931-07-03|1933-11-06|Buckau R Wolf Akt Ges Maschf|Disc cell for suction cell rotary filter|
    GB894318A|1959-12-10|1962-04-18|Simonacco Ltd|Improvements relating to disc-type filters|
    US3610419A|1969-06-09|1971-10-05|Improved Machinery Inc|Filter leaf|
    US3643803A|1970-01-19|1972-02-22|Gladys M Glos|Section for disc filter apparatus|
    SE432715B|1983-02-10|1984-04-16|Hedemora Verkstaeder Ab|ROTATING DISC FILTER|DE3706402C1|1987-02-27|1988-07-07|Finckh Maschf|Sieve segment for filters for thickening fiber suspensions|
    SE460579B|1987-06-24|1989-10-30|Bjarne Nilsson|ROTATING FILTERS WITH OUTER FILTRATE CHANNELS|
    SE460641B|1987-06-24|1989-11-06|Bjarne Nilsson|FILTER SECTION FOR A ROTABLE FILTER|
    SE504133C2|1991-11-27|1996-11-18|Bjarne Ivar Nilsson|Filter sector for rotating filters|
    US5238564A|1992-07-31|1993-08-24|Ingersoll-Rand Company|Method and apparatus for control of filtrate volume in a disc filter|
    FI20002696A|2000-12-08|2002-06-09|Outokumpu Oy|The filtering element|
    DE102007007134A1|2007-02-13|2008-08-14|Meiko Maschinenbau Gmbh & Co.Kg|Filter for cleaning machines|
    DE102017118050A1|2017-08-09|2019-02-14|Voith Patent Gmbh|disc filter|
    US11000791B2|2019-03-06|2021-05-11|Veolia Water Solutions & Technologies Support|Rotary disc filter having backwash guides|
    AT523741B1|2021-02-26|2021-11-15|Andritz Ag Maschf|FILTER SECTOR FOR A FILTER DISC AND DISC FILTER WITH A FILTER SECTOR|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE8500826A|SE453158B|1985-02-20|1985-02-20|DISC FILTER ELEMENT FOR A ROTABLE DISC FILTER|
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