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19 条记录 (耗时 0.009 秒)

    Mixing apparatus for improving the treatment of fibre suspension
    1.
    发明公开
    Mixing apparatus for improving the treatment of fibre suspension 失效
    用于改善纤维悬挂处理的混合装置

    公开(公告)号：EP0578284A3

    公开(公告)日：1997-03-12

    申请号：EP93114759.9

    申请日：1988-02-22

    申请人： A. AHLSTROM CORPORATION

    发明人： Niskanen, Toivo

    IPC分类号： B01F7/00

    CPC分类号： B01F7/00325 ,  B01F3/1221 ,  B01F5/0473 ,  B01F7/00275 ,  B01F7/00908 ,  D21C9/00

    摘要： The present invention relates to a mixing apparatus for improving the treatment of fibre suspension. The apparatus comprises a housing (13) for the fibre suspension flow having a mixing chamber with an inlet opening (14), an outlet opening (16), and a fluidizing rotor (22) arranged in the mixing chamber. The fluidizing rotor (22) is formed of a shaft (21) extending through the housing (13) substantially at a right angle to the fibre suspension flow therethrough and finger-like fluidizing members (26) attached to the end (25) of said shaft (21) in the housing (13).

    Method and apparatus for thickening fiber suspension
    2.
    发明公开
    Method and apparatus for thickening fiber suspension 失效
    Verfahren und Vorrichtung zum Eindicken einer Faseraufschwemmung。

    公开(公告)号：EP0298499A1

    公开(公告)日：1989-01-11

    申请号：EP88110948.2

    申请日：1988-07-08

    申请人： A. AHLSTROM CORPORATION

    发明人： Henricson, Kaj ,  Mäkelä, Mika ,  Niskanen, Toivo ,  Pikka, Olavi ,  Vikman, Vesa

    IPC分类号： D21C9/18

    CPC分类号： D21C9/18

    摘要： The present invention relates to a method and apparatus for the continuous discharge of water from suspension, especially from fibrous pulp, whereby pulp is caused to thicken without having the water to be removed through a thick uncontrollably gathered fiber mat.
    In accordance with the invention the suspension to be thickened is fed into a filtering chamber (9), the suspension is formed as a layer that is continuously being mixed for equalizing the consistency differences, the liquid is continuously removed from the suspension and the thickness of the fiber mat being formed on the filter surface (8) is controlled by subjecting said mat to shear stresses.
    The above described method is realized by an apparatus, in which at least one of the co-operating surfaces, the filtering surface (8) and its counter surface (10), is provided with means (12) for non-mechanically limitting the thickness of a fiber mat on the filtering surface (8), whereby a uncontrolled formation of a fiber mat on the filtering surface (8) is prevented.

    摘要翻译： 本发明涉及一种用于从悬浮液，特别是纤维纸浆中连续排放水的方法和装置，其中使纸浆增稠，而不需要通过厚度不受控制地聚集的纤维垫除去水分。 根据本发明，要加厚的悬浮液被供给到过滤室（9）中，悬浮液形成为连续混合的层，以均衡稠度差，液体从悬浮液中连续移除，并且液体的厚度 通过使所述垫经受剪切应力来控制形成在过滤器表面（8）上的纤维垫。 上述方法通过一种装置实现，其中至少一个配合表面，过滤表面（8）及其对置表面（10）设置有用于非机械限制厚度的装置（12） 的过滤表面（8）上的纤维垫，从而防止了过滤表面（8）上的纤维毡的不受控制的形成。

    Method and apparatus for pumping a medium
    5.
    发明公开
    Method and apparatus for pumping a medium 失效
    用于泵送介质的方法和装置

    公开(公告)号：EP0466167A3

    公开(公告)日：1992-10-28

    申请号：EP91111619.2

    申请日：1991-07-12

    申请人： A. AHLSTROM CORPORATION

    发明人： Niskanen, Toivo ,  Reponen, Voitto ,  Timperi, Jukka ,  Vesala, Reijo ,  Vikman, Vesa

    IPC分类号： F04D7/04 ,  F04D29/42

    CPC分类号： F04D29/426 ,  F04D7/045 ,  F04D15/00 ,  F04D15/0022 ,  F04D29/2288 ,  F04D29/5866 ,  F05B2210/132

    摘要： The present invention discloses a method and a centrifugal pump for pumping fiber suspensions of the pulp and paper industry in which the fiber suspension is caused to flow into a centrifugal pump housing in which space a vortex flow is created to prevent the suspension from forming a strong fiber network and from causing blockage of the system. The centrifugal pump includes a housing provided with one inlet (22) and at least two non-symmetrical outlets (92, 94), at least one of the outlets being preferably provided with a means for regulating the flow through the outlet. The centrifugal pump further includes an impeller/rotor (78, 80) for moving the suspension through the several outlets (92, 94) towards further processing devices.

    Method and apparatus for pumping high consistency fiber suspension
    6.
    发明公开
    Method and apparatus for pumping high consistency fiber suspension 失效
    用于泵送高度一致性纤维悬挂的方法和装置

    公开(公告)号：EP0297464A3

    公开(公告)日：1989-07-26

    申请号：EP88110144.8

    申请日：1988-06-24

    申请人： A. AHLSTROM CORPORATION

    发明人： Niskanen, Toivo

    IPC分类号： F04D7/04

    CPC分类号： F04D7/045 ,  B01F7/086

    摘要： The invention relates to a method and an apparatus for treating high-consistency fiber suspension. The method and apparatus according to the invention are especially suitable for short distance conveyances of thick fiber suspensions (consistency more than 15 %) in pulp and paper industry, for example for discharge of mass towers either with a pump or without any actual pump. The treatment of fiber suspension with a consistency more than 15 % is not possible with the known technique without a displacement type of pump, which is expensive and easy to break. Additionally in discharging of the mass tower(4), drop leg, etc. fiber suspension causes trouble by arching in the container in such a way that it forms an open chamber around the pump located at the bottom of the container which chamber is slowly filled by fiber suspension. Said problems are solved or minimized by arranging a feed apparatus (31) in the pulp chamber, which feeds fiber suspen­sion to a fluidizing rotor (21), which fluidizes the fiber suspension, whereafter the suspension flows onwards. On the other hand, the feeder apparatus (3) is characterized in that it is to raise the pressure of the fiber suspension sufficiently for the fluidization, but not too high, in which case the operational members would be stressed redundantly. For said reason fiber suspension is fed excessively to the rotor (21), whereby the feeding pressure of fiber suspension is controlled by throttling devices (34) which are arranged separate from the feeder apparatus (3) in the back-circulation duct of passage.

    Method and apparatus for pumping high consistency fiber suspension
    7.
    发明公开
    Method and apparatus for pumping high consistency fiber suspension 失效
    用于泵送的高稠度纤维悬浮液的方法和设备。

    公开(公告)号：EP0297464A2

    公开(公告)日：1989-01-04

    申请号：EP88110144.8

    申请日：1988-06-24

    申请人： A. AHLSTROM CORPORATION

    发明人： Niskanen, Toivo

    IPC分类号： F04D7/04

    CPC分类号： F04D7/045 ,  B01F7/086

    摘要： The invention relates to a method and an apparatus for treating high-consistency fiber suspension. The method and apparatus according to the invention are especially suitable for short distance conveyances of thick fiber suspensions (consistency more than 15 %) in pulp and paper industry, for example for discharge of mass towers either with a pump or without any actual pump.
    The treatment of fiber suspension with a consistency more than 15 % is not possible with the known technique without a displacement type of pump, which is expensive and easy to break. Additionally in discharging of the mass tower(4), drop leg, etc. fiber suspension causes trouble by arching in the container in such a way that it forms an open chamber around the pump located at the bottom of the container which chamber is slowly filled by fiber suspension.
    Said problems are solved or minimized by arranging a feed apparatus (31) in the pulp chamber, which feeds fiber suspen­sion to a fluidizing rotor (21), which fluidizes the fiber suspension, whereafter the suspension flows onwards. On the other hand, the feeder apparatus (3) is characterized in that it is to raise the pressure of the fiber suspension sufficiently for the fluidization, but not too high, in which case the operational members would be stressed redundantly. For said reason fiber suspension is fed excessively to the rotor (21), whereby the feeding pressure of fiber suspension is controlled by throttling devices (34) which are arranged separate from the feeder apparatus (3) in the back-circulation duct of passage.

    摘要翻译： 本发明涉及一种方法和装置用于处理高稠度纤维悬浮液中。 该方法和装置雅丁发明是爱特别适合于大规模的塔要么用泵或不具有任何实际的泵的排出在纸浆和造纸工业厚纤维悬浮液（稠度15％以上），对于实施例的短距离交通工具。 纤维悬浮液的一个一致性大于15％的处理是不可能的不带泵的位移类型的公知的技术，所有这是昂贵的和容易破裂。 另外，降腿在大容量塔的放电（4）等的纤维悬浮液通过在寻求一种方式在容器拱起会导致麻烦做到了形成围绕位于容器哪个腔室的底部的泵的开放腔室是慢慢地填充 由纤维悬浮液中。 所述问题得到解决或通过布置在纸浆腔室，其中进料的纤维悬浮液到一个流化转子（21），其中流化的纤维悬浮液，然后将悬浮液起流过的进料装置（31）最小化。 在另一方面，所述送料装置（3）的特征在于，这样做是为充分地提高该纤维悬浮液的压力为流化，但不能太高，在这种情况下，运算部件将被冗余地强调。 用于所述合理纤维悬浮液被过度供给到转子（21），由此，纤维悬浮液的供给压力由节流装置控制其布置从供料器装置分开的（34）（3）在通道的背面循环管道。