• 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 rotor (1) for a pulper of a pulp processing plant, which is arranged to circulate a fibrous suspension (3) contained in a container (2) in this container (2) and sweeps over a sieve surface (4) of the container (2) a rotor head (5) formed on the outer periphery (15) a plurality of rotor blades (6,7) are fixed. The rotor blades (6,7) have a different height from the screen surface (4).
    公开号:AT13645U1
    申请号:TGM9005/2012U
    申请日:2012-02-24
    公开日:2014-05-15
    发明作者:
    申请人:Voith Patent Gmbh；
    IPC主号:
    专利说明:

    Austrian Patent Office AT 13 645 Ul 2014-05-15
    description
    ROTOR
    The invention relates to a rotor for a pulper of a pulp processing plant, which is arranged to circulate a contained in a container pulp suspension in this container and sweeps a screen surface of the container, wherein the rotor is formed by a rotor head, on the outer periphery of a plurality of rotor blades are attached.
    Pulper of this type are mainly used to bring dried pulp or waste paper in suspension. They consist essentially of a container for the suspension and at least one rotor. The registered material is intensively mixed in large pieces, webs or pressed bales with water, whereby a hydraulic material drive is generated by the rotor. Understandably, such devices are optimized, aiming essentially for a fast and efficient dissolution. In many cases, the rotor is placed in close proximity to a flat screen that keeps it free of blockages. Through the openings of the screen, the dissolved substance is withdrawn as a suspension.
    As a standard type for a pulper, a vertical cylindrical container with a rotor in the bottom area has prevailed. In this container, water and the material to be dissolved is added from the top and with the help of the rotor creates a Trombenströmung in the suspension, ie in the inner region of the fabric is pulled down from the rotor and pressed radially outward in the bottom region, resulting in a Umtriebsströmung results. There are also flow measures known to control this Umtriebsströmung. For example, by appropriate flow installations (such as weir plates or flow breaker) on the container wall, the circumferential flow braked, as it brings only a small contribution to the resolution.
    However, the effect of the rotors can not fully satisfy.
    The object of the invention is therefore to improve the effectiveness of the rotors.
    According to the invention, this object is achieved in that the rotor blades starting from the screen surface have a different height. While the flat rotor blades provide strong shear in the screen area and keep the screen clear, the high rotor blades are designed to increase the flow of motions.
    It has been found to be particularly effective when several high and several low rotor blades are attached to the rotor head and preferably followed in the direction of rotation on a high rotor blades, a lower rotor blade. Furthermore, it is advantageous if six rotor blades are attached to the rotor head.
    The rotor head has a relatively large diameter. Smaller rotor heads, while being more energy efficient, are also prone to the formation of undissolved pulp plates that overlay the rotor head and interior rotor blades. As a result, the effect of the rotor is greatly impaired. The pulp plates can even lead to the collapse of the Umtriebs in the container.
    The large rotor head leads to a large distance between the rotor blades in the region of the rotor head, so that large bale fragments have a lot of space and do not interfere with the flow in the rotor.
    Moreover, it is advantageous if the pointing in the direction of rotation side of several, preferably all rotor blades is inclined starting from the screen surface in the rotational direction. In combination with the large gap between the rotor blades, this ensures a good degree of filling of the wing interstices and thus a high efficiency of the rotor.
    This can be further improved by the fact that the high rotor blades have a drawn in the direction of rotation upper edge. This also improves the conveyance of the rotor and reduces air sensitivity.
    The flow formation can also be supported by a curved shape of the rotor blades.
    Extensive studies have shown that it is advantageous if the pointing in the direction of rotation side of the rotor blade with the outer circumference of the rotor head an angle between 30 and 50 °, preferably between 35 and 45 ° and / or pointing in the direction of rotation side the rotor blade with the swept by the rotor blades rotor circuit forms an angle between 30 and 50 °, preferably between 35 and 45 °.
    It is particularly advantageous for the effectiveness of the rotor, when the pointing in the direction of rotation side of the rotor blade with the outer circumference of the rotor head and swept by the rotor blades rotor circuit each forms an angle, the maximum of 10 °, preferably at most 5 ° from each other differ.
    In order to produce an imbalance with larger pulp pieces and throw them away, should be mounted on the rotor head at least one additional wing, which preferably extends within the outer periphery of the rotor head and is arranged asymmetrically to the rotor blades.
    Advantageously, the rotor is used in pulp dissolution.
    The invention will be explained in more detail using an exemplary embodiment. In the attached drawing: FIG. 1 shows a schematic cross section through a pulper; FIG. 2: a plan view of the rotor 1, and [0020] FIG. 3: an overall view of the rotor 1.
    An embodiment of a pulper, to which the invention can be applied, is the standing, cylindrical and open top pulper according to Figure 1, in which sieve and rotor 1 are located in the bottom area.
    During operation, pulp and water are introduced into the container 2 of the pulper. The finished, pumpable pulp suspension 3 is withdrawn through the screen openings of the screen surface 4 of the screen as accept.
    Even if such a rotor 1 is not always horizontal in the pulper, that is operated with a vertical axis, it is assumed here of this special installation situation and accordingly from "top". and " bottom " spoken. The rotor 1 is provided with a total of six curved rotor blades 6.7 and is driven in rotation in the direction of rotation 8 during operation of the pulper.
    In known manner, the rotor 1 cooperates with the screen surface 4. The corresponding sieve is mounted as close as possible to the underside of the rotor 1. This small distance is advantageously a few millimeters and causes a good resolution and the freedom of the screen openings of the screen surface 4. In this case, the screen on the rotor 1 side facing also provided with strips, which advantageously enhances the dissolving effect. In this case, the distance between the rotor 1 and the top of the bar is essential.
    The rotor 1 shown in detail in Figures 2 and 3 is particularly suitable for pulp suspensions 1 with high consistency in the range between 2 and 6%.
    For this purpose, the rotor 1 has a relatively large rotor head 5 with a diameter 10, on the outer circumference 15, the six rotor blades are mounted 6.7. About the large rotor head 5, the formation of unresolved pulp plates can be effectively countered. In this case, the rotor blades 6, 7 have different heights perpendicular to the screen surface 4, with a lower rotor blade 6 following in the direction of rotation 8 onto a high rotor blade 7. While the flat rotor blades 6 ensure a high degree of shear and keep the screen surface 4 clear, the high rotor blades 7 are important for the rotation.
    In order to promote the promotion of the rotor 1, the pointing in the direction of rotation 8 page 11 of all rotor blades 6,7 is inclined starting from the screen surface 4 in the direction of rotation 8, which generates a flow component to the screen surface 4. To promote the resolution, the high rotor blades 7 have an upper edge 12 drawn in the direction of rotation 8.
    Furthermore, it has proven to be positive if, as shown here, the direction of rotation 8 side facing 11 of the rotor blades 6.7 with the outer circumference 15 of the rotor head 5 and the swept by the rotor blades 6.7 rotor circuit 13 each one approximately equal angle 14,16 forms between 35 and 45 °.
    In addition, located on the rotor head 5, an additional wing 9, which extends within the outer periphery 15 of the rotor head 5 and is arranged asymmetrically to the rotor blades 6.7.
    With regard to the angle 14,16 between the direction of rotation 8 facing sides 11 and the outer periphery 15 of the rotor head 5 and the rotor circuit 13, the tangent is always used here. 3.5
    权利要求:
    Claims (12)
    [1]
    Austrian patent office AT13 645U1 2014-05-15 Claims 1. Rotor (1) for a pulper of a pulp preparation plant, which is arranged in this container (2) to circulate a pulp suspension (3) contained in a container (2) and has a sieve surface (4 ) of the container (2), wherein the rotor (1) by a rotor head (5) is formed on the outer periphery (15) a plurality of rotor blades (6,7) are fastened, characterized in that the rotor blades (6,7 ) to the formation of high and low rotor blades (6,7) starting from the screen surface (4) and perpendicular to this have a different height.
    [2]
    2. rotor (1) according to claim 1, characterized in that the rotor head (5) a plurality of high (7) and a plurality of low (6) rotor blades are attached.
    [3]
    3. rotor (1) according to claim 1 or 2, characterized in that in the direction of rotation (8) on a high rotor blade (7), a lower rotor blade (6) follows.
    [4]
    4. rotor (1) according to any one of the preceding claims, characterized in that six rotor blades (6,7) are fixed to the rotor head (5).
    [5]
    5. Rotor (1) according to any one of the preceding claims, characterized in that in the direction of rotation (8) facing side (11) of a plurality, preferably all rotor blades (6,7) starting from the screen surface (4) in the rotational direction (8) inclined is.
    [6]
    6. rotor (1) according to any one of the preceding claims, characterized in that the high rotor blades (7) in the direction of rotation (8) drawn upper edge (12).
    [7]
    7. rotor (1) according to any one of the preceding claims, characterized in that the rotor blades (6,7) have a curved shape.
    [8]
    8. rotor (1) according to any one of the preceding claims, characterized in that in the direction of rotation (8) facing side (11) of the rotor blades (6,7) with the outer circumference (15) of the rotor head (5) an angle (16) between 30 and 50 °, preferably between 35 and 45 °.
    [9]
    9. rotor (1) according to any one of the preceding claims, characterized in that in the direction of rotation (8) facing side (11) of the rotor blades (6,7) with the of the rotor blades (6,7) swept rotor circuit (13) a Angle (14) between 30 and 50 °, preferably between 35 and 45 ° forms.
    [10]
    10. Rotor (1) according to any one of the preceding claims, characterized in that in the direction of rotation (8) facing side (11) of the rotor blades (6,7) with the outer periphery (15) of the rotor head (5) and of the rotor blades (6,7) swept rotor circuit (13) each form an angle (14,16) which differ by a maximum of 10 °, preferably at most 5 ° from each other.
    [11]
    11. Rotor (1) according to one of the preceding claims, characterized in that on the rotor head (5) at least one additional wing (9) is mounted, which preferably extends within the outer periphery (15) of the rotor head (5).
    [12]
    12. Rotor (1) according to claim 11, characterized in that the additional wing (9) is arranged asymmetrically to the rotor blades (6,7). 1 sheet of drawings 4/5
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    同族专利:
    公开号 | 公开日
    CN203755074U|2014-08-06|
    FI10279U1|2013-10-25|
    DE102011005024A1|2012-09-06|
    WO2012116928A1|2012-09-07|
    DE202011110357U1|2013-09-09|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US4109872A|1977-07-29|1978-08-29|The Black Clawson Company|Pulping apparatus for liquid slurry stock|
    EP1398410A1|2002-09-12|2004-03-17|Kadant Lamort|Paper pulper|
    EP1693505A1|2005-02-22|2006-08-23|Voith Paper Patent GmbH|Pulper for disintegration and suspension of paper pulp and rotor suitable for such a pulper|
    US20070114311A1|2005-11-21|2007-05-24|Hiromi Fukudome|Stock re-pulper|
    CN105178077B|2015-08-12|2017-07-28|烟台大为环保科技有限公司|A kind of rotor and apply its D type pulpers|
    CN108486942B|2018-04-10|2019-12-27|黄冈晨鸣浆纸有限公司|Energy-saving high-efficiency horizontal high-concentration hydraulic pulper|
    DE102018109634A1|2018-04-23|2019-10-24|Voith Patent Gmbh|pulper|
    CN110258154A|2019-05-17|2019-09-20|重庆紫量科技有限公司|A kind of environmental protection waste paper recyclable device|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE102011005024A|DE102011005024A1|2011-03-03|2011-03-03|rotor|
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