• 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:
    The invention relates to a dispersing device for dispersing fibrous material (1) with a housing (2) in which a first treatment tool (3) and a second treatment tool (4) are arranged, the treatment tools (3, 4) each having a rotationally symmetrical shape , are arranged coaxially to each other, in each case in a plurality of annular, concentric to their center rows (5) arranged teeth (6), between which there are tooth gaps, which are flowed through by the fibrous material (1), between the rows of teeth (5) annular Intermediate spaces are present, which are arranged so that at least one row of teeth (5) of a treatment tool (3,4) extends into an annular space of the other, complementary treatment tool (4,3 ).Dabei the dispersion should be improved in that at least some Teeth (6) of at least one treatment tool (3,4) have at least one radially extending groove (9) welc he only extends over part of the distance between the tooth base (14) and the tooth head (10).
    公开号:AT12915U1
    申请号:TGM50047/2012U
    申请日:2010-10-06
    公开日:2013-02-15
    发明作者:
    申请人:Voith Patent Gmbh；
    IPC主号:
    专利说明:

    Austrian Patent Office AT12 915U1 2013-02-15
    description
    DISPERGER III
    The invention relates to a dispersing device for dispersing pulp with a housing in which a first treatment tool and a second treatment tool is arranged, wherein the treatment tools each have a rotationally symmetrical shape, are arranged coaxially to each other, each in a plurality of annular, to its center having concentric rows of teeth between which there are tooth gaps, which are flowed through by the fibrous material and annular spaces between the rows of teeth are provided, which are arranged so that at least one row of teeth of a treatment tool extends into an annular space of the other, complementary treatment tool.
    Devices of the o. G. Art be z. B. used to improve the quality of pulp, which was obtained from waste paper. It is known that paper pulp can be homogenized by dispersing and thereby significantly improved. In many cases, a pulp is used which has a dry content of between 15 and 35% and has been brought to a temperature which is far above the ambient temperature. It makes sense to carry out the heating when the pulp already has its consistency required for dispersion.
    However, often the result of the dispersion is not satisfactory. In addition, the treatment tools wear out relatively quickly.
    The object of the invention is therefore to improve the dispersion with the least possible wear of the treatment tools.
    According to the invention the object is achieved in that at least some teeth of at least one treatment tool have at least one radially extending groove, which extends only over part of the distance between the tooth base and the tooth head.
    As radially extending grooves are understood that extend at least with a directional component perpendicular to the circumferential direction of the treatment tool.
    The pulp suspension flows through the gap between the treatment tools usually from the inside out. While the treatment tools move relative to one another, the radially extending grooves, in particular because they extend only over part of the distance between the tooth base and the tooth tip, form additional working edges, which improves the dispersion, in particular the dirt spot comminution, the ink separation and the comminution of the comminuted pieces.
    In this way, the energy consumption and wear can be significantly reduced.
    To obtain this effect as comprehensively as possible, the vast majority, preferably all the teeth of at least one row of teeth, preferably a treatment tool and in particular all the teeth of the disperser at least one, extending only over part of the distance between the tooth base and the tooth head, radially extending Own groove.
    In many cases, it is sufficient for this purpose, if a part of the teeth, preferably all teeth have only one radially extending groove.
    However, it can be at high demands of advantage if a part of the teeth, preferably all teeth more, have only over a part of the distance between the tooth base and the tooth head extending radially extending grooves.
    It is advantageous if the radially inner and outer tooth flank of a tooth and / or the opposite tooth flanks of adjacent rows of teeth at least one, extending only over part of the distance between the tooth base and the tooth head, radially verlau- 1/9 Austrian Patent Office AT 12 915 Ul 2013-02-15 own groove.
    It is usually sufficient if several, preferably all tooth flanks only each have a radially extending groove.
    To maximize the number of additional working edges, it may be advantageous if several, preferably all tooth flanks each have a plurality of radially extending grooves.
    If the teeth are wide enough in the circumferential direction, a plurality of radial grooves in the circumferential direction can be arranged side by side.
    However, it may also be advantageous if the radially extending grooves of a tooth flank are arranged radially one behind the other and / or radially offset from each other.
    In the interest of a uniform effect of the grooves should have several, preferably all radially extending grooves in the radial direction of the same depth. However, it can be advantageous, in particular, in the production or specific designs of the treatment tool, if the depth of a plurality of, preferably all, radially extending grooves changes in the radial direction.
    Since most treatment tools are cast, it is advantageous if the radial cross section of the teeth is formed in a truncated pyramid.
    This in turn allows to simplify the production of the grooves, that the depth of the radially extending grooves increases in the direction of the tooth base, wherein the groove base preferably extends approximately perpendicular to the radial direction.
    Regardless of the formation of the radial groove, it may be advantageous that at least one radial groove on the tooth base or at least one radial groove on the tooth tip ends.
    But it can also be advantageous to create effective working edge when all radial grooves of the tooth flanks end in front of the tooth tip or the tooth base.
    For the effectiveness of the radial grooves, but also in the production, especially when Geissen it is advantageous if the width of the radial grooves in the direction of the tooth flank remains constant or preferably increases.
    On the other hand, it may also be advantageous if the radial grooves are formed by holes in the tooth flank. It is not necessary that the bore is open to the end to the respective tooth flank.
    Furthermore, it may be advantageous if there is at least one radially extending groove on the tooth tip or in the tooth base.
    To extend the operating time, it is also advantageous if some teeth, preferably the majority of teeth and in particular all teeth of at least one row of teeth, preferably at least one treatment tool and in particular all teeth of the disperser have at least one groove extending in the circumferential direction.
    According to the requirements, it may be sufficient if a part of the teeth, preferably all teeth have only one groove extending in the circumferential direction. However, it may also be necessary for a portion of the teeth, preferably all teeth, to have a plurality of circumferentially extending grooves.
    In this case, the groove extending in the circumferential direction can be located on the tooth tip and / or on a radially inner or outer tooth flank.
    Again, it may be advantageous if the radially inner and outer tooth flank of a tooth or the opposite tooth flanks of adjacent rows of teeth have at least one groove extending in the circumferential direction.
    So that the pulp is not accelerated too much in the circumferential direction, the radially extending grooves should not be deeper than the grooves extending in the circumferential direction. Depending on the requirements and the nature of the fibrous suspension, both treatment tools can be formed by rotors driven in opposite directions. In most cases, however, a treatment tool is formed by a drivable rotor and the second treatment tool by a stationary stator.
    The invention will be explained in more detail below with reference to several exemplary embodiments. In the attached drawing: FIG. 1 shows a schematic cross section through a dispersing device; Figure 2: a plan view of a treatment tool 3; Figures 3a-c: different tooth cross sections in the radial direction; Figures 4a + b: the two views according to the section in Figure 3; Figures 5a-c: further tooth cross sections in the radial direction; Figures 6a + b: the two views according to section in Figure 5 and Figure 7: a further preferred variant.
    The high-consistency paper pulp 1 is pressed according to Figure 1 directly into the central region of the Dispergergarnitur, which is formed by the two treatment tools 3,4.
    While a treatment tool 3 is stationary and thus designed as a stator, the other treatment tool 4 is rotatably mounted in the housing 2 of the Dispergers.
    The Dispergergarnitur with the stator and the rotor is thus fed radially inward. As is well known, dispersion is effected by moving teeth 6 relatively close together relatively close together and subjecting the fibrous material 1 therebetween to strong shear forces. For this purpose, the pulp 1 can be heated by heating steam before. After dispersion, the dispersed pulp 1 falls down through the outlet 12.
    When the axial position of the stator and rotor is changed relative to each other, thereby also the gap between them, whereby in a conventional manner the performance of the disperser can be controlled changes.
    The treatment tools 3,4 each have a rotationally symmetrical shape. In this case, the coaxially arranged treatment tools 3,4 each have in a plurality of annular, concentric to their center rows 5 arranged teeth 6, between which there are tooth gaps, which are flowed through by the pulp 1 radially outward.
    Between the rows of teeth 5 annular spaces are provided, which are arranged so that at least one row of teeth 5 of a treatment tool 3.4 extends into an annular space of the other, complementary treatment tool 4.3.
    As shown in Figures 2 to 7, have the truncated pyramidal teeth 6 radially and partially in the circumferential direction 7 extending grooves 8,9,15,16. These grooves 8, 9, 15, 16 form additional working edges, which improves the dispersion.
    According to FIG. 2, all or for example only every second radially inner or outer tooth flank 11 can have one or more grooves 8 extending in the circumferential direction 7. The circumferential groove 8 can also be located on the tooth head 10. In addition, the teeth 6 also each have a centrally in the radially inner and outer tooth flanks 11 of the rows of teeth 5 from the tooth base 14 to the tooth head 10 radially extending groove. 9
    Substantially essential to the invention are the radial grooves 9 which extend only over part of the distance between the tooth base 14 and the tooth tip 10 and which can occur alone or in combination with other radial grooves 15, 16 and / or circumferential grooves 8. With a minimum tooth width of approximately 4 mm, the width of the radial grooves 9, 15, 16 should be approximately between 1.5 and 2.5 mm.
    In the teeth 6 shown in Figures 3 to 7, the depth of the radial groove 9 of the tooth flanks 11 changes in the longitudinal direction. Because of the truncated pyramidal cross section of the teeth 6, this can be achieved simply by the fact that the groove bottom 13 extends approximately perpendicular to the tooth base 14, so that the depth increases continuously towards the tooth base 14. In this way, the casting of the treatment tool 3.4 considerably simplified, with a slight inclination of the groove bottom 13 with respect to the perpendicular to the tooth base 14, for example, 4 °, should be included.
    However, the radial grooves 9 of the tooth flanks 11 can also be formed, as in FIGS. 5c and 6b, by bores in the tooth flank 11, which extend approximately perpendicular to the radial direction or the plane of rotation of the treatment tool 3,4. These holes can end in the tooth flank 11 and form cavities there. Holes are particularly advantageous if the teeth have a low height and / or are relatively wide.
    The teeth 6 shown in FIGS. 3 have a maximum of only one radial groove 9 on a tooth flank 11.
    While the radial groove 9 of both tooth flanks 11 ends at the tooth 6 according to FIG. 3a on the tooth head 10, this runs according to FIG. 3b to the tooth root 14.
    In FIG. 3 c, only one tooth flank 11 of the tooth 6 has a radial groove 9, which, however, is objected to by the tooth head 10 and the tooth base 14.
    In addition, runs on the tooth tip 10 of this tooth 6, a circumferential groove. 8
    In the side views of the teeth 6 shown in Figure 4 a and b according to the section in Figure 3 it can be seen that between the adjacent teeth 6 in the circumferential direction 7 7 outgoing from the tooth base 14 elevations, so-called hills, extend for that purpose Ensure that the paper pulp 1 is pressed from the tooth base 14 directly into the next passing tooth gap.
    In contrast, FIGS. 5 a to c show different teeth 6 whose tooth flanks 11 have a plurality of radial grooves 9 arranged radially one behind the other. As in FIG. 3, the radial grooves 9 in FIGS. 5 a and b each have a groove base 13 extending approximately perpendicular to the radial direction or the plane of rotation of the treatment tool 3,4.
    In this case, the width of the radial grooves 9 in the direction of the tooth flank 11 increases slightly, which facilitates the casting of the grooves 9.
    The radial grooves 9 of a tooth flank 11 can be consecutively strung together as in FIG. 5 a and b, so that a step-shaped course results.
    In FIG. 5 a, the first radial groove 9 of a tooth flank 11 on the tooth head 10 begins while the last radial groove 9 ends before the tooth base 14.
    In contrast to this, the last radial groove 9 of the tooth flanks 11 extends in FIG. 5b to the tooth base 14. In addition, the tooth 6 shown in FIG. 5b has a radially extending groove 15 in the tooth head 10.
    The tooth 6 shown in Figure 5 c also has a radial groove 15 in the tooth head 10, although, as mentioned, the radial grooves 9 of the tooth flanks 11 are formed by holes.
    Furthermore, a radially extending groove 16 in the tooth base 14 is realized between the teeth 6 of FIGS. 5 b and c.
    Figures 6 show the corresponding side views according to the section in Figure 5. 4/9
    权利要求:
    Claims (30)
    [1]
    Austrian Patent Office AT12 915U1 2013-02-15 The variant shown in Figure 7 preferably has only on one, namely the against the flow direction of the pulp suspension 1 facing tooth flank 11 from the tooth base 14 and the tooth head 10 offensive radial groove 9. If necessary However, a radial groove 9 are also introduced at the other tooth flank 11. In addition, the tooth head 10 still has a radially extending groove 15, which merges into the radial groove 9 of the tooth flank 11. Claims 1. A dispersing device for dispersing pulp (1) with a housing (2) in which a first treatment tool (3) and a second treatment tool (4) are arranged, the treatment tools (3, 4) each having a rotationally symmetrical shape, are arranged coaxially to one another, in each case in a plurality of annular, concentric to their center rows (5) arranged teeth (6), between which there are tooth gaps, which are flowed through radially by the pulp (1) and between the rows of teeth (5) annular spaces are arranged, which are arranged so that at least one row of teeth (5) of a treatment tool (3,4) extends into an annular space of the other, complementary treatment tool (4,3), characterized in that at least some teeth (6) at least one Treatment tool (3,4) have at least one radially extending groove (9), which extends only over part of the route extends between the tooth base (14) and the tooth head (10).
    [2]
    2. Dispergiervorrichtung according to claim 1, characterized in that the predominant part, preferably all the teeth (6) at least one row of teeth (5) at least one, only over a part of the distance between the tooth base (14) and the tooth head (10) extending radially have extending groove (9).
    [3]
    3. Dispergiervorrichtung according to claim 1 or 2, characterized in that the majority of the teeth (6), preferably all the teeth (6) at least one treatment tool (3,4) at least one, only over part of the distance between the tooth base (14 ) and the tooth head (10) extending radially extending groove (9) have.
    [4]
    4. Dispersing device according to one of the preceding claims, characterized in that the predominant part of the teeth (6), preferably all teeth (6) at least one, extending over only a part of the distance between the tooth base (14) and the tooth head (10), have radially extending groove (9).
    [5]
    5. Dispergiervorrichtung according to any one of the preceding claims, characterized in that a part of the teeth (6), preferably all the teeth (6) have only one radially extending groove (9).
    [6]
    6. Dispergiervorrichtung according to any one of the preceding claims, characterized in that a part of the teeth (6), preferably all the teeth (6) have a plurality of radially extending grooves (9).
    [7]
    7. Dispergiervorrichtung according to any one of the preceding claims, characterized in that the radially inner and outer tooth flank (11) of a tooth (6) have at least one radially extending groove (9).
    [8]
    8. Dispergiervorrichtung according to any one of the preceding claims, characterized in that the opposite tooth flanks (11) of adjacent rows of teeth (5) have at least one radially extending groove (9).
    [9]
    9. Dispergiervorrichtung according to any one of the preceding claims, characterized in that a plurality, preferably all tooth flanks (11) only each have a radially extending groove (9).
    [10]
    10. Dispergiervorrichtung according to any one of the preceding claims, characterized in that a plurality, preferably all tooth flanks (11) each have a plurality of radially extending grooves (9). 5/9 Austrian Patent Office AT 12 915 Ul 2013-02-15
    [11]
    11. Dispersing device according to claim 10, characterized in that the radially extending grooves (9) of a tooth flank (11) are arranged radially one behind the other.
    [12]
    12. Dispergiervorrichtung according to claim 10, characterized in that the radially extending grooves (9) of a tooth flank (11) are arranged radially offset from one another.
    [13]
    13. Dispergiervorrichtung according to any one of the preceding claims, characterized in that a plurality, preferably all radially extending grooves (9) in the radial direction have the same depth.
    [14]
    14. Dispergiervorrichtung according to any one of the preceding claims, characterized in that the depth of a plurality, preferably all radially extending grooves (9) changes in the radial direction.
    [15]
    15. Dispergiervorrichtung according to any one of the preceding claims, characterized in that the radial cross section of the teeth (6) is formed truncated pyramid.
    [16]
    16. Dispersing device according to claim 14 and 15, characterized in that the depth of the radially extending grooves (9) in the direction of the tooth base (14) increases.
    [17]
    17. Dispersing device according to claim 16, characterized in that the groove base (13) extends approximately perpendicular to the radial direction.
    [18]
    18. Dispergiervorrichtung according to any one of the preceding claims, characterized in that at least one radial groove (9) ends at the tooth base (14).
    [19]
    19. Dispegiervorrichtung according to any one of the preceding claims, characterized in that at least one radial groove (9) on the tooth head (10) ends.
    [20]
    20. Dispegiervorrichtung according to any one of claims 1 to 18, characterized in that all radial grooves (9) in front of the tooth head (10) end.
    [21]
    21. Dispergiervorrichtung according to any one of claims, characterized in that the width of the radial grooves (9) in the direction of the tooth flank (11) remains constant or preferably increases.
    [22]
    22. Dispergiervorrichtung according to any one of the preceding claims, characterized in that the radial grooves (9) are formed by holes in the tooth flank (11).
    [23]
    23. Dispergiervorrichtung according to any one of the preceding claims, characterized in that there is at least one radially extending groove (15) on the tooth head (10).
    [24]
    24. Dispergiervorrichtung according to any one of the preceding claims, characterized in that some teeth (6), preferably the majority of teeth (6) and in particular all the teeth (6) at least one row of teeth (5) at least one in the circumferential direction (7) extending groove ( 8) possess.
    [25]
    25. Dispersing device according to claim 24, characterized in that in the circumferential direction (7) extending groove (8) on the tooth head (10).
    [26]
    26. Dispergiervorrichtung according to claim 24, characterized in that in the circumferential direction (7) extending groove (8) on a radially inner or outer tooth flank (11).
    [27]
    27. Dispersing device according to one of claims 24 to 26, characterized in that the radially extending grooves (9) are not deeper than in the circumferential direction (7) extending grooves (8).
    [28]
    28. Dispergiervorrichtung according to any one of the preceding claims, characterized in that the tooth base (14) has radially extending grooves (16). 6/9 Austrian Patent Office AT 12 915 Ul 2013-02-15
    [29]
    29. Dispergiervorrichtung according to any one of the preceding claims, characterized in that both treatment tools (3,4) are formed by oppositely driven rotors.
    [30]
    30. Dispersing device according to one of claims 1 to 28, characterized in that a treatment tool (4) by a drivable rotor and the second treatment tool (3) is formed by a stationary stator. For this 2 sheets drawings 7/9
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    同族专利:
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    WO2011069703A3|2011-09-29|
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    CN203080352U|2013-07-24|
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE19541892C1|1995-11-10|1996-11-21|Voith Sulzer Stoffaufbereitung|Mechanical treatment of consolidated fibrous material, esp. waste paper|
    EP1561858A1|2004-02-05|2005-08-10|Durametal Corporation|Disperger with plate having grooved pyramid teeth|
    EP2243879A2|2009-04-23|2010-10-27|Andritz, Inc.|Deflaker plate and methods relating thereto|
    DE102011005273A1|2011-03-09|2012-09-13|Voith Patent Gmbh|disperser|
    US20140174688A1|2012-12-26|2014-06-26|Andritz Inc.|Teeth for disperser plate having grooves and taper|
    WO2015044414A1|2013-09-30|2015-04-02|Philippe Saint Ger Ag|Disperger plate|
    法律状态:
    2015-06-15| MM01| Lapse because of not paying annual fees|Effective date: 20141031 |
    优先权:
    申请号 | 申请日 | 专利标题
    DE200910047653|DE102009047653A1|2009-12-08|2009-12-08|Disperger III|
    PCT/EP2010/064881|WO2011069703A2|2009-12-08|2010-10-06|Disperger iii|
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