• 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:
    CONCLUSION Filter support (10) for a filter sector part (31), which filter support (10) is formed with a surface extension comprising alternating substantially parallel axes (11) and parallel valleys (12), the entire surface extension of the filter support (10) within one of the filter sector part (10). 31) Inlet sector frame (21) is provided with said axes (11) and valleys (12), at least one of the radial edges (19) of the filter support (10) being provided with recesses (15) which between them form support projections. (16). A filter sector part (31) provided with such a filter support (10) and a sector part (50) provided with such a filter sector part (31).
    公开号:SE1450946A1
    申请号:SE1450946
    申请日:2014-08-14
    公开日:2016-02-15
    发明作者:Johan Rasmussen
    申请人:Johan Rasmussen；
    IPC主号:
    专利说明:

    TECHNICAL FIELD The present invention relates to a sector part of a filtering, rotatably rotating aligned filter disc. This sector part comprises a filter support mounted in a sector frame for the passage of liquid flowing through a filter of suitable design which abuts the filter support and further into a center channel via an outlet channel in the sector frame.
    Background of the Invention In the pulp and paper industry, it is common to use disc-shaped rotary vacuum filters which are placed axially in series for the purpose of cleaning water shoes, rather than all water in the pulp and paper industry. These rotating disks are each made up of a number of assembled disk segments, each of which is called a sector part. Each sector part consists of a sector frame, a filter support and a filter over the entire surface of the filter support, and usually on both sides of the filter support. Each sector part is further provided with an outlet channel for the filtered liquid which is transported further into a central shaft or central rotor or alternatively in peripheral tubes on or to which the sector parts are mounted. The transport of liquid through the filter parts is effected by a vacuum, which means that the filter surface is pressed against the filter support.
    Prior art in the field appears from the Swedish patent SE 531539 which shows a sector part which is provided with a filter pillar designed as a folded metal net which folds are oriented perpendicularly in relation to the radial extent of the sector part.
    Furthermore, US 5,647,982 shows further background to the invention as well as a corresponding sector part comprising a filter support post formed with parallel axes and valleys oriented so that an axis or valley is parallel to the radial extent of the sector part. The axes and valleys of US 5,647,982 are formed by bending the filter support tan a flat sheet of metal with sharp V-shaped axes and valleys between which flat sides define tangential flow in the sector part. The material in the filter support is stainless steel. The radial flow in the sector part takes place between the axes and between the valleys true in radial direction in formed channels at the sector side 2! Dead side edges in that the support does not extend to the edge of the sector part but is welded to the sector part's frame profile at a distance from the edge.
    Because the filter support is designed in metal, a fatigue bending of the metal is obtained. Especially for such filter stands which consist of welded and bent seams, breakage is obtained in the welds, with the threads chipping slippery in the filters. Correspondingly, sharp horns gnaw in other types of filter stands from the filters and these must be replaced to maintain the filtration capacity.
    Object of the invention The object of the invention is to provide a filter post which is easy to manufacture and which is gentle on the filters and which allows at least the same flow rates through the sector parts as previously known filter posts.
    The purpose is further to provide a filter support which can also constitute a stand for different types of filters, such as, for example, pass-like synthetic filters and stainless steel metal filters which can be both flat and pleated.
    The object is furthermore to provide a filter sector part comprising such a filter stand.
    In addition, the object is to provide a sector part with such a filter sector part to a filter with a pressure difference, for example a vacuum filter for water purification.
    SUMMARY OF THE INVENTION The present invention, as set forth in the independent claims, fulfills the above objects, thereby eliminating said disadvantages. Suitable embodiments of the invention are set out in the dependent claims.
    The terminology used in the continuation is that a sector part consists of a filter sector part and a filter; that a filter sector part consists of a filter pillar and a sector frame; that a sector frame consists of support profiles, where each profile preferably has the shape of a U-profile, an outlet channel and connections to a center shaft or to connections in other known constructions, for example rotor constructions or constructions with peripheral tubes.
    The invention relates to a filter support for a filter sector part of a filter for cleaning water shoes. The filter support is formed with a surface extension comprising alternating substantially parallel axes and parallel valleys, the entire surface extension of the filter support within a sector frame entering in the filter sector part being provided with said axes and valleys. At least one of the radial edges of the filter support is provided with recesses which between them form support projections. This filter support is intended to be used in filter units where transport of the filtered liquid takes place either through a central shaft, through a central rotor or through peripheral tubes on or to which the sector parts are mounted.
    By the expression "mainly / mainly" is meant throughout the application that the angle can, however, vary ± 50.
    The invention relates to a filter support for a filter sector part, which filter support is formed with a surface extension comprising substantially parallel axes and parallel valleys oriented so that an axis or a valley is substantially parallel to the radial extent of the filter support in the filter sector part. The entire surface extension within a sector frame not included in the filter sector part is provided with the said axes and valleys. Filter! Dada radial edges are provided with recesses which between them form support projections. The recesses reduce a radial flow between the parallel axes and the valleys along the radial side edges of the filter column, which in turn improves the radial flow of the entire sector part. Thus, an overflow between two adjacent channels can occur through these projections at the side edges.
    In one embodiment of the invention, the surface extension of the filter support is either pleated or wavy. In particular, this wavy design on the filter support meant a surface-extended abutment against a filter surface which is gentle on the filter surface and thus the filter, when this is pressed against the filter support. This surface-extended abutment helps to extend the life of the filter and thereby reduces the need for maintenance of the sector part.
    In an embodiment of the invention, at a tangential section through the waveform, the cut surfaces of the filter support follow a sine curve, preferably according to the shape y = sin x and where the amplitude of the curve corresponds to half the distance between the insides of the filter surfaces. Such a shape of the filter support involved a gentle abutment of the filter against the filter support and a flow through the sector part which minimizes turbulence caused by the filter support.
    In an embodiment of the invention, the support projections have a length which corresponds to a simultaneous abutment against the sector frame when the filter support is fitted in the sector frame. Such support committees, all of which abut the sector frame, increase the stability of the sector part and at the same time entail a reduction of vibrations in the filter support at its connection to the sector frame.
    In an embodiment of the invention, the abutment takes place against the radial inside of the sector frame. In the case of U-shaped profiles, such an arrangement means that the committees do not primarily support the shins of the profiles but the inside of life.
    In an embodiment of the invention, the recesses and the stud projections have a uniform pitch and are arranged along the two radial edges of the entire filter post. Such a design entailed a rational continuous manufacturing process in that recesses and projections could be cut continuously, for example with water cutting.
    In one embodiment of the invention, the filter support is made of a homogeneous polymeric material with or without reinforcement, preferably polypropylene or composite. Acrylic plastic PEX or polycarbonate are also possible polymeric materials. Such materials are available as standard and can be the subject of a filter support. The blank only needs to be ducked and edged to obtain a finished filter stand. This meant both a fast and cheap manufacturing process of a filter pillar. Stainless steel or polymeric materials fitted with carbon fiber / glass fiber can also be used as material for a filter support within the scope of the invention.
    In one embodiment of the invention, the filter support is provided with a number of side passages distributed over the surface extension of the filter support in order to allow transverse flow between the channels formed by the vagially shaped filter support. In a homogeneous polymeric material, the surfaces are taut and do not allow transverse flow, but by providing the filter support with side passages, a certain transverse flow is allowed. The river size of the transverse flow can be determined by selecting the number of side passages in the filter support. Preferably, the number of side passages is superficially several closer to the outlet channel due to an increased river density. In a special case of this embodiment, the filter support is designed as a pleated or vagin-shaped perforated plate which with its edge-coated projections protrudes towards the inside of the sector frame. However, this plate is not welded to the sector frame but is loosely inserted into the sector frame to facilitate replacement and maintenance. Constructions with permanently mounted filter supports are also conceivable within the scope of the invention.
    The invention also relates to a filter sector part comprising a sector frame in the form of U-profiles whose shanks are oriented towards the center of the sector part. The filter sector part is then provided with a filter support according to the flag of the liner molds presented above, which filter support is mounted in the U-profiles. Because the sector frame is wedge-shaped, the filter support can easily be pushed radially into the sector frame by dismantling / mounting the sector frame's outer limiting profile. Should this limiting profile not be demountable, it can be cut loose and welded back in place after changing the filter support.
    The invention also relates to a sector part comprising a filter sector part as above together with a filter. The filter is, for example, designed as a pass of a synthetic material which is pulled over the entire filter sector part, the filter being provided with mounting devices, for example in the form of a flash glass. Such a type of filter can be replaced without removing the sector frame.
    In one embodiment of the sector part, the filter is designed as a flat or pleated synthetic filter with a surface spread over the entire side of the filter support.
    In an embodiment of the sector part comprising the filter sector part, the filter is designed as a plane built into the sector frame or built on the sector frame of stainless steel mesh, which is provided with mounting means, for example in the form of a continuous screw-nut connection. In such an embodiment, the entire filter support is removed with the filter after the sector frame has been dismantled.
    In an embodiment of the sector part with the filter sector part, the filter sector part comprises a first sector unit and a second sector unit which sector units adjoin each other through an H-profile, at least one sector unit being provided with a filter column as described above.
    Brief description of the drawings The invention will now be described in more detail with male instructions in connection with the accompanying drawing figures. For the sake of clarity, section markings have been omitted in the specified section views.
    Figure 1 shows a filter support according to the invention.
    Figure 2 shows a sector frame according to the invention.
    Figure 3 shows a filter sector part with the filter support mounted in a sector frame according to the invention.
    Figure 4 shows a radial section through a filter sector part according to the invention.
    Figure shows the filter sector part equipped with a filter of stainless 6 cloth.
    Figure 6 shows the filter sector part provided with a filter-type filter.
    Figure 7 shows a tangential section A-A according to Figure 5 through an embodiment of the invention.
    Figure 8 shows a tangential section B-B according to Figure 6 through a further embodiment of the invention.
    Figure 9 shows the embodiment of Fig. 8 under vacuum.
    Figure shows a second embodiment of a filter post according to the invention.
    Figure 11 shows a radial section through a filter sector part with a filter support according to Figure 10.
    Figure 12 shows a tangential section through a mounted filter post according to the second embodiment.
    Figure 13 shows a first variant of a double filter sector part, each with a respective chip post according to Figure 1.
    Figure 14 shows a second variant of a double filter sector part, each with a respective filter column oriented parallel to one of the radii of the sectors.
    Figure 15 shows a third embodiment of a filter post according to the invention.
    Figure 15b shows a fourth embodiment of a filter post according to the invention.
    Figure 16 shows a third variant of a double filter sector part each with respective filter resistors oriented tangentially in each sector.
    Figure 17 shows a section analogous to the section A-A shown in Figure and Figure 7 with a filter column according to Figure 15a.
    Description of the invention Figure 1 shows a first design of a wagon-shaped filter pillar 10 with a consisting of substantially parallel asary ridge peaks 11 and parallel valleys / wagon valleys 12 with a surface extension over the entire surface of the filter pillar. The shafts 11 and the valleys 12 are oriented so that the shafts and valleys are substantially parallel to the radial extent of the filter post, i.e. substantially parallel to a line of symmetry S from 7 the inner edge 13 of the filter post to its outer edge 14. The filter post is substantially wedge-shaped with its narrow edge 13 water food and its wide edge 14 water outwards so that it can be pushed into a sector frame from the outside. The filter support 10 is further provided with recesses 15 between which support projections 16 are arranged. The embodiment according to the figure shows recesses with intermediate support projections distributed along the entire radial edges 19, and with constant division between the recesses and the projections, respectively. In other embodiments of the filter support a different pitch may be suitable and in further embodiments the support projections 16 may be located closer to the narrow edge 13 and more sparse towards the wide edge 14. The filter support is further provided with a number of side passages 17 distributed over the surface extension of the filter support. allow transverse flow between channels 18 formed by the wavy filter support.
    Figure 2 shows a sector frame 21 to a filter sector part where the sector frame consists of U-shaped radial profiles 22, 23 which are connected to each other with an outer limiting profile 24 which in the embodiment shown can be screwed into the radial profiles 22, 23. The the radial profiles 22, 23 are connected to a mounting bracket 25 which opens an outlet channel 26. The entire sector gutter 21 can be mounted to a center shaft, not shown, with a center channel by means of a connecting plate 27.
    Figure 3 shows a filter sector part 31 with its filter support 10 according to figure 1 and its sector frame 21 according to figure 2 mounted together to the filter sector part 31.
    Figure 4 shows a radial section through the filter sector part 31, the support projections 16 of the filter support 10 abutting against the outermost 4 of the U-shaped radial profiles 22, 23. Through its projections a possibility of a radial flow between the channels formed by the waveform is obtained. The radially flowing liquid passes the outlet channel 26 and further into the center channel in the center axis, not shown.
    Figure 5 shows a sector part 50 with an embodiment of the filter in the sector part 50 which in this embodiment consists of a flat stainless metal mesh 61 which is screwed with screw 62 through the filters of the sides and through the filter support. For a distribution of the screw force Above the filter surface, the screws 62 are also screwed through surface-enlarging mounting plates 63 which are shown in the figure as stars. This metallate can also be pleated.
    Figure 6 shows an alternative embodiment of the filter in the sector part 50 in Figure 5 which in this embodiment consists of the sector part 50 with a filter sector part 31 which is provided with a fitting filter 51 which covers the entire filter sector part 31 except 8 mounting bracket 25 and connection plate 27. The fitting filter may be flat or folded.
    Figure 7 shows a tangential section AA through the sector part 50 shown in Figure 5 with the wavy filter support 10 inserted between the sector frame 21 [Ada radial U-shaped profiles 22, 23. The filter sides 61, 71 are inclined towards the filter support 10 by means of the mounting plates 63, 73 and the screws 62 on both sides of the sector part and which protrude through screw hole 74 in the filter support 10. As can be seen from the figure, the support projections 16 abut against the inner surface 72 of the U-profiles life corresponding to the outermost inside of the U-profiles. Depending on the waveform at the U-profile, the projections can also abut against either of the U-profile shins, which corresponds to an alternative inside of the U-profiles.
    Figure 8 shows a tangential section BB through the sector part 50 shown in Figure 6 with the wavy filter support 10 inserted between the sector frame 21! The radial U-shaped profiles 22, 23. The filter sector part is in this figure covered with a fitting filter 51 which is closed around the filter sector part sat, for example by a flash laser 81 or by shrinkage. The projections 16 also abut in this embodiment against the U-profiles 22, 23 in the same manner as shown in figure 7. In this embodiment two side passages 17 are also shown to allow transverse flow between channels 18 formed by the vagially shaped filter support 10.
    Figure 9 shows how the fitting filter 51 in the sector part 50 according to Figure 8 is pressed against the outside of the carriage tops 11 and the carriage valves 12 when a pressure difference is created, for example that a vacuum is applied inside the sector part 50. The passport filter 51 is pressed down into the channels 18 12 exteriors. Due to this pressing against the carriage tops / carriage valves, a transverse flow can only be obtained through side passages 17 in combination with the recesses in the filter support.
    Figure 10 shows a second embodiment of the filter support 10 which, like the first design, is provided with substantially parallel axes / carriage tops 11 and parallel valleys / carriage valleys 12 with a surface extension over the entire surface of the filter support. The shafts 11 and the valleys 12 are in this embodiment oriented so that the shafts and the valleys are substantially parallel to one radial edge 19 of the filter pillar, which meant that a radial flow channel 101 is formed at this edge. The second radial edge 20 of the filter support, on the other hand, is formed with said recesses 15 between which support projections 16, as previously mentioned, are arranged. These recesses 15 then form radial flow channels at this edge of the filter support. Figure 11 shows a radial section through a filter sector part 31 with a filter support 10 according to Figure 10. The figure shows that the mounted filter support allows a radial liquid flow parallel to the filter support 10 at the first radial edge 110 of the filter sector part 31 and also a radial liquid flow through the filter support 10 recesses at the second radial edge 111 of the filter sector part 31.
    Figure 12 shows a tangential section through a mounted filter post formed according to Figure 10. The figure shows that the filter post 10 at the first radial edge 110 of the filter sector part 31 abuts against the inner surface 72 of the web of the U-profile 22. The figure further shows that the support projections 16 of the filter support 10 at the second radial edge 111 of the filter sector part 31 abut against the inner surface 72 of the web of the U-profile 22.
    Figure 13 shows a double filter sector part 31 which is made up of a first sector unit 31a and a second sector unit 31b. The respective filter supports of the sector units abut against a radially directed H-profile 131 symmetrically located in the filter sector part 31. The two filter supports 10a, 10b are oriented in each sector unit in the same way as previously shown in Figure 3, i.e. the axes 11 and the valleys 12 are oriented so that the axes and valleys are substantially parallel to the radial extent of the filter post, i.e. substantially parallel to a line from the inner edge 13 of the filter post to its outer edge 14. Furthermore, both inner radial edges of the filter post 10a, 10b abut against the life of the H-profile. from each side.
    Figure 14 shows a second variant of a double filter sector part 31 each with the respective filter support 10a, 10b oriented parallel to one of the radii of the sector units 31a, 31b. This embodiment of the filter sector part is also provided with a centrally and radially extending H-profile against the life of which the applied filter support 10a, 10b abuts. The first filter support 10a abuts the H-profile with its support projections while the second filter support 10b abuts the H-profile with its entire parallel and radially directed edge in accordance with what is shown in Figure 11.
    Figure 15a shows a further embodiment of a filter support 10 with a tangential orientation of the substantially parallel axes 11 and the valleys 12 and which thereby have an extension perpendicular to the radial line of symmetry S of the filter support 10. The embodiment shows that only one side of the filter support is formed with said recesses 15 between which support stands 16 are arranged, similar to what is shown in previous embodiments.
    Figure 15b shows a further embodiment of a filter post 10 with a tangential orientation of the substantially parallel axes 11 and the valleys 12 similar to the orientation shown in Figure 15a. However, this embodiment is provided with said recesses 15 and said support projections 16 on the radial edges of the filter support.
    Figure 16 shows a double filter sector part 31 which is built up of a first sector unit 31a and a second sector unit 31b. The respective filter supports of the sector units abut against a radially directed H-profile 131 symmetrically located in the filter sector part 31. The [filter filters 10a, 10b are oriented in each sector unit in the same way as previously shown in Figures 15a and 15b. The filter support 10a, 10b in this double filter sector part 31 can be formed with support projections and recesses according to either what is shown in figure 15a or as shown in figure 15b or with both these variants of filter support where one variant is located in the first sector unit 31a and the second variant is located in the second sector unit 31b.
    Figure 17 shows a section through an embodiment analogous to the section A-A shown in Figure 5 and Figure 7 but mounted with a filter post according to Figure 15a. The figure shows that the filter support 10 at the second radial edge 111 of the filter sector part 31 abuts against the inner surface 72 of the web of the U-profile 22. The figure further shows that the support projections 16 of the filter pillar 10 at the first radial edge 110 of the filter sector part 31 abut against the inner surface 72 of the web of the U-profile 22.
    Thus, as will be apparent from the above description of embodiments, the orientation of a mounted wavy filter stand in the various embodiments of a filter sector portion may be: radial with the wafers parallel to a line of symmetry; with the carriages parallel to a radial edge of the filter sector part; tangential with the carriages perpendicular to a line of symmetry in the filter sector part. Although only these orientations of a filter support are shown and described, other angles of the orientations of the filter support can be appropriate and are thus protected within the scope of the appended claims.
    In all the embodiments shown, a radial flow is also obtained along the U-profiles through the recesses formed between the support projections. In all embodiments within the scope of the invention, the support committees extend into the life of the radial profiles, regardless of whether they are designed as U-profiles or as H-profiles. 11
    权利要求:
    Claims (15)
    [1]
    A filter support (10) for a filter sector part (31) which filter support (10) is formed with a surface extension comprising alternating substantially parallel axes (11) and parallel valleys (12), the entire surface extension of the filter support (10) within one of the filter sector part (10) 31) Inlet sector frame (21) is provided with said axes (11) and valleys (12), characterized in that at least one of the radial edges (19, 20) of both the filter support (10) is provided with recesses (15) which form between them stOdutskott (16).
    [2]
    Filter support according to claim 1, characterized in that the parallel axes (11) and the parallel valleys (12) are oriented either substantially parallel to the radial extent of the filter support (10) in the filter sector part (31) or substantially parallel to one of the filter support ( 10) radii in the filter sector part (31) or substantially perpendicular to one of the radii of the filter column (10) in the filter sector part (31) that and that the entire surface extension within a sector frame (21) entering the filter sector part (31) is provided with said aces (11) and valleys (12).
    [3]
    Filter stand according to one of Claims 1 to 2, characterized in that the surface extension of the filter stand (10) is either pleated or wavy.
    [4]
    Filter support according to Claim 3, characterized in that the cut surfaces of the filter support (10) follow a sinusoidal curve at a section perpendicular to the axes (11) through a vagally shaped filter support (10).
    [5]
    Filter support according to one of Claims 1 to 4, characterized in that the support projections (16) have a length corresponding to a simultaneous abutment against the sector frame (21) when the filter support (10) is mounted in the sector frame (21).
    [6]
    Filter stand according to Claim 5, characterized in that the abutment takes place against the radial inside (41) of the sector frame (21). 12
    [7]
    Filter support according to one of Claims 1 to 6, characterized in that the recesses (15) and the support projections (16), respectively, have a uniform pitch and are arranged along one or the entire radial edges (19, 20) of the filter support (10).
    [8]
    Filter stand according to any one of claims 1-7, characterized in that the filter stand (10) is made of a homogeneous polymeric material with or without reinforcement, preferably polypropylene or composite.
    [9]
    Filter support according to one of Claims 1 to 7, characterized in that the filter support (10) is made of a pleated plate.
    [10]
    Filter support according to any one of claims 8-9, characterized in that the filter support (10) is provided with a number of side passages (17) distributed over the surface extension of the filter support (10) to allow transverse flow between the channels (18) formed by the vagial filter support.
    [11]
    Filter sector part (31) comprising a sector frame (21) in the form of U-profiles (22, 23) whose shanks are oriented towards the center of the filter sector part (31), Urine characterized in that the filter sector part (31) is provided with a filter support (10) according to any one of claims 1-10 and mounted in the U-profiles (22, 23).
    [12]
    A sector part (50) comprising a filter sector part (31) according to claim 11 together with a filter (51, 61), characterized in that the filter is designed as a pass filter (51) which is pulled over the entire filter sector part (31), the pass filter (51) is equipped with mounting devices, for example in the form of a flash glass.
    [13]
    A sector part (50) comprising a filter sector part (31) according to claim 11 together with a filter (51, 61), characterized in that the filter is designed as a flat or pleated synthetic filter with a surface spread over the entire side of the filter support (10).
    [14]
    A sector part (50) comprising a filter sector part (31) according to claim 11 together with a filter (51, 61), characterized in that the filter is formed as a flat or folded stainless steel metal net (61) which is provided with mounting means (62, 63), for example in the form of a continuous screw-nut connection.
    [15]
    A sector part (50) comprising a filter sector part (31), characterized in that the filter sector part (31) comprises a first sector unit (31a) and a second sector unit (31b) which sector units are adjacent to each other by an H-profile and that at least one sector unit ( 31a, 31b) are provided with a filter support according to any one of claims 1-10. 14, 8 2 11 12 16 17 22 17 'Fig 26 31 21 Fg3 24
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    同族专利:
    公开号 | 公开日
    SE538253C2|2016-04-19|
    WO2016024909A1|2016-02-18|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    SE466636B|1989-10-26|1992-03-16|J H Tidbeck Ab|Disc filter segment|
    US5647982A|1995-05-10|1997-07-15|Haythornthwaite; James |Vacuum filter element|
    SE531539C2|2007-07-05|2009-05-12|Johan Rasmussen|Sector portion of a filtering, preferably rotatingly arranged disk|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1450946A|SE538253C2|2014-08-14|2014-08-14|Filter support, filter sector part and sector part|SE1450946A| SE538253C2|2014-08-14|2014-08-14|Filter support, filter sector part and sector part|
    PCT/SE2015/050869| WO2016024909A1|2014-08-14|2015-08-12|Filter support, filter sector part and sector part|
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