• 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:
    A filter section for a rotatable filter of the kind including a plurality of sections (5) assembled into an annular filter disk. Each section (5) comprises two mutually spaced plate-shaped elements (6,7) which are at least partially perforated and provided with protrusions (8) keeping a filter cloth (9) spaced from the plate-shaped elements. The space between the plate-shaped elements (6,7) is in communication with a discharge conduit (2) for filtrate. At least one substantially radial drainage channel (12) is arranged between the elements (6,7), this channel having communication with the outlet (13) of the section. The space between the plate-shaped elements (6,7) at the side of the channel (12) is filled with a hardened compound (11). The plate-shaped elements (6,7) are provided with openings (10) towards the channel (12).
    公开号:SU1716957A3
    申请号:SU884355977
    申请日:1988-06-23
    公开日:1992-02-28
    发明作者:Нильссон Бьярне
    申请人:Бь рне Нильссон (SE)；
    IPC主号:
    专利说明:

    The invention relates to filtering, in particular to rotary filters, and can be used in various industries.
    The purpose of the invention is to increase the efficiency of the device.
    Figure 1 shows a filter section with a channel passing diagonally; Fig. 2 shows a filter section with two radial channels; FIG. 3 is the same as FIG. 1, cross section.
    The filter section 1 includes an annular holder 2, axially directed nozzles 3 for the filtrate. The holder 2 has a U-shaped cross section and is connected by welding to axially located nozzles 3, which are provided with openings 4 in the direction of rotation indicated by arrow A, and closed on the opposite side. From nozzles 3 in the direction opposite to the direction of rotation, the inner part of the holder 2 is filled with a filling compound 5 or blocked in any other way from the rest of the holder 2. A connection is made through the holes 4 between the unfilled inside of the holder 2 and the nozzles 3 located axially.
    The filter section 1 is installed between two axial connections 3 in the holder of the filter disc as described above. The filter section typically includes two plate elements 6 and 7, on the outer sides of which there are protrusions 8 that hold the filter fabric 9 at a distance from the respective surfaces of the element. In accordance with the invention, the protrusions 8 are not continuous, i.e. their length is limited and they are preferably mutually displaced in adjacent rows of protrusions (Fig. 1). In this design, the filtrate can flow at the surfaces of elements 6 and 7 in all directions. Elements 6 and 7 are provided with openings 10 for passing the filtrate passing through the filter fabric 9 into the area between elements b and 7, so as to make the internal cavity of the filter section 1 as small as possible, the space between elements 6 and 7 in accordance with this The invention is filled with a curable compound 5 (Fig. 3). Compound 5 should preferably have adhesion properties and penetrate into the internal cavity of the protrusions 8. Besides the fact that compound 5, filling the internal volume of the filter section 1, reduces its volume, it gives the section a greater ability
    to resist the compression caused by the pressure created in the section during the filtration process. Since compound 5 is also in the inner cavities of the projections 8,
    greater resistance to shear forces applied to the compound from the side of elements 6 and 7 is achieved, and thus greater rigidity and resistance to torsional loads of section 1.
    0 To remove the filtrate from the areas between the filter cloth and elements 6 and 7, taking into account the filling with compound 5, at least one channel 11 is provided inside section 1 between the elements
    5 6 and 7, connected to the spaces through holes 10, and holes at the outer periphery of the section, where the connection with the unfilled part of the holder 2 is provided via radial
    0 holes 12.
    Channel 11 passes approximately diagonally through the entire section 1 and has an outlet in its final part of the dd release of the filtered liquid. In such a design, it is possible to provide a certain inclination of the channel 11 downwards, when the nozzle 3 is elevated above the liquid level. An outer peripheral channel 13 and, if necessary, may also be provided.
    0 an internal peripheral channel 14 connected to the channel 11 and to the space between the filter cloth 9 and the elements 6 and 7.
    In the embodiment depicted in figure 2,
    5, two radial channels 15 and 16 are provided, connected to the inner peripheral channel 14, with channel 16 running along the rear in the direction of rotation of the edge of the filter section.
    0 In another possible embodiment of the invention, not illustrated in the drawings, a diagonal channel arrangement is possible, similar to channel 11 in FIG. 1, and a radial channel arrangement similar to channel 16 shown in FIG. 2, both of which have output at the outer periphery of the section at the axially located channel 3. In this embodiment, neither the external nor the internal peripheral channels are provided.
    A preferred embodiment of channel 11 is shown in FIG. This channel includes two L-shaped sections 17, the sides 18 of which cover the corresponding other sides 19. In these places, welds 20 can be made in the outer corners, between the sides 18 and 19. The sides 18 are provided with holes 21 opposite the holes 10 in elements 6 and 7.
    The holes 21 are preferably made adjacent to the sides 19, which are at the highest point when section 1 rises above the surface of the filtered liquid. In this design, the channel 11 under the holes 21 has the greatest possible throughput for the withdrawal of the filtrate.
    权利要求:
    Claims (4)
    [1]
    Claims 1. A filter section of a rotary filter comprising filter sections assembled into an annular filter disk, each section consisting of two parallel plate elements that are at least partially perforated and having protrusions to keep the filter fabric separated from the surfaces of the plate elements wherein the space between the plate elements is communicated with an outlet channel for the filtrate, characterized in that
    0
    five
    0
    the space between the lamellar elements is filled with a curing compound having adhesive ability with respect to the lamellar elements; .
    [2]
    2. A section according to claim 1, characterized in that it is provided with an outlet channel formed in the outer peripheral part and connected to the radial outlet channel.
    [3]
    3. Section on PP. 1 and 2, characterized in that it is provided with an outlet channel formed in the inner peripheral part and connected to a radial outlet channel.
    [4]
    4. Section on PP. 1-3, characterized in that the inner part of the protrusions is supplemented with a curing compound.
    2
    6 8 11109 3
      AV
    Tfn
    5 & 2010 7 8
    Fig.Z
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    同族专利:
    公开号 | 公开日
    US4931179A|1990-06-05|
    EP0297074A1|1988-12-28|
    SE8702617D0|1987-06-24|
    FI883060A0|1988-06-23|
    FI883060A|1988-12-25|
    FI84978C|1992-02-25|
    BR8803084A|1989-01-10|
    DE3876515D1|1993-01-21|
    DE3876515T2|1993-04-15|
    NO882737D0|1988-06-21|
    NO165745B|1990-12-27|
    EP0297074B1|1992-12-09|
    AT83164T|1992-12-15|
    JPS6434415A|1989-02-03|
    NO882737L|1988-12-27|
    AU603906B2|1990-11-29|
    SE460641B|1989-11-06|
    FI84978B|1991-11-15|
    SE8702617L|1988-12-25|
    CA1316836C|1993-04-27|
    NO165745C|1991-04-17|
    AU1832888A|1989-01-05|
    ES2036282T3|1993-05-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2757284C2|2017-06-02|2021-10-12|Нордик Вотер Продактс Аб|Filter disk|DE717315C|1930-05-07|1942-02-11|Westfalia Dinnendahl Groeppel|Cell for rotary disc filter|
    DE587642C|1931-07-03|1933-11-06|Buckau R Wolf Akt Ges Maschf|Disc cell for suction cell rotary filter|
    US3438505A|1967-01-27|1969-04-15|Improved Machinery Inc|Filter segment for disc filters|
    BE787415A|1971-08-13|1973-02-12|Wacker Chemie Gmbh|ADHESIVE DISPERSIONS|
    DE2407218C3|1974-02-15|1982-01-21|Klöckner-Humboldt-Deutz AG, 5000 Köln|Sector element for disc filters|
    US3917534A|1974-04-17|1975-11-04|Plastic Tech Inc|Filter sector|
    SE438447B|1983-10-21|1985-04-22|Bjarne Ivar Nilsson|ROTABLE DISC FILTER|
    SE453158B|1985-02-20|1988-01-18|Bjarne Nilsson|DISC FILTER ELEMENT FOR A ROTABLE DISC FILTER|
    SE460704B|1987-06-24|1989-11-13|Bjarne Nilsson|FILTERPAASE|FI89768C|1989-07-06|1993-11-25|Ahlstroem Oy|Filtering Drum|
    SE465605B|1990-02-26|1991-10-07|Harry Nilsson|disc filters|
    SE504133C2|1991-11-27|1996-11-18|Bjarne Ivar Nilsson|Filter sector for rotating filters|
    SE510746C2|1996-09-19|1999-06-21|Kvaerner Pulping Asa|Device at a filter sector for a rotating filter disc|
    US5925248A|1997-07-18|1999-07-20|Minerals Processing Techniques, Inc.|Disk filter sector having an attachment system outside of flow area|
    JP5297904B2|2009-06-12|2013-09-25|トヨタ自動車株式会社|Oil pan for internal combustion engine and internal combustion engine equipped with the same|
    US11000791B2|2019-03-06|2021-05-11|Veolia Water Solutions & Technologies Support|Rotary disc filter having backwash guides|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE8702617A|SE460641B|1987-06-24|1987-06-24|FILTER SECTION FOR A ROTABLE FILTER|
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