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21 条记录 (耗时 0.035 秒)

    Device for dewatering of a paper web including prepressing with extended nip shoe
    3.
    发明授权
    Device for dewatering of a paper web including prepressing with extended nip shoe 失效
    纸幅脱水装置，包括使用延长的压印辊预压

    公开(公告)号：US5611893A

    公开(公告)日：1997-03-18

    申请号：US377173

    申请日：1995-01-24

    申请人： Juhani Pajula ,  Martti Hipsimaki ,  Juha Kivimaa ,  Pekka Taskinen ,  Jorma Laapotti ,  Mikko Karvinen

    发明人： Juhani Pajula ,  Martti Hipsimaki ,  Juha Kivimaa ,  Pekka Taskinen ,  Jorma Laapotti ,  Mikko Karvinen

    IPC分类号： D21F3/02 ,  D21F3/04 ,  D21F3/06

    CPC分类号： D21F3/0218 ,  D21F3/04 ,  D21F3/045

    摘要： Method and device in the manufacture of paper or board for dewatering of a paper web that is being manufactured. The paper web is transferred from a forming wire onto a wire in the drying section while constantly on support of a fabric that receives water, a transfer fabric, or of any other, corresponding transfer surface as a closed draw, at a particularly high speed, which is higher than about 25-30 m/s. Dewatering of the paper web is carried out by means of at least two subsequent press nips, of which nips at least one press nip is a so-called extended-nip zone, whose length in a machine direction is larger than about 100 mm. The extended-nip zone is formed in connection with a mobile flexible press-band loop. The distribution of the compression pressure employed within said extended-nip press zone is regulated and/or selected both in the transverse direction of the web and in the machine direction so as to set or to control the different profiles of properties of the web.

    摘要翻译： 制造纸张或纸板的方法和装置，用于正在制造的纸幅的脱水。 纸幅从成形线转移到干燥部分中的线上，同时以特别高的速度恒定地支撑接收水，转印织物或任何其它相应的转印表面作为封闭绘制的织物， 高于约25-30米/秒。 纸幅的脱水通过至少两个随后的压榨辊进行，其中至少一个压榨辊隙是所谓的延伸压区，其长度在机器方向上大于约100mm。 延伸压区是与移动的柔性压带环结合形成的。 在所述延伸压区压区中采用的压缩压力的分布在幅材的横向方向和机器方向上被调节和/或选择，以便设定或控制幅材的不同特性。

    Method for dewatering of a paper web by pressing using an extended nip shoe pre-press zone on the forming wire
    4.
    发明授权
    Method for dewatering of a paper web by pressing using an extended nip shoe pre-press zone on the forming wire 失效
    通过在成形线上使用延长的压板预压区进行压制来对纸幅进行脱水的方法

    公开(公告)号：US5389205A

    公开(公告)日：1995-02-14

    申请号：US26851

    申请日：1993-03-05

    申请人： Juhani Pajula ,  Juha Kivimaa ,  Jorma Lapotti ,  Martti Hirsimaki ,  Pekka Taskinen ,  Mikko Karvinen

    发明人： Juhani Pajula ,  Juha Kivimaa ,  Jorma Lapotti ,  Martti Hirsimaki ,  Pekka Taskinen ,  Mikko Karvinen

    IPC分类号： D21F3/02 ,  D21F3/04 ,  D21F3/06 ,  D21F9/02

    CPC分类号： D21F3/0218 ,  D21F3/04 ,  D21F3/045

    摘要： Method and device in the manufacture of paper or board for dewatering of a paper web that is being manufactured. The paper web is transferred from a forming wire onto a wire in the drying section while constantly on support of a fabric that receives water, a transfer fabric, or of any other, corresponding transfer surface as a closed draw, at a particularly high speed, which is higher than about 25-30 m/s. Dewatering of the paper web is carried out by means of at least two subsequent press nips, of which nips at least one press nip is a so-called extended-nip zone, whose length in a machine direction is larger than about 100 mm. The extended-nip zone is formed in connection with a mobile flexible press-band loop. The distribution of the compression pressure employed within said extended-nip press zone is regulated and/or selected both in the transverse direction of the web and in the machine direction so as to set or to control the different profiles of properties of the web.

    摘要翻译： 制造纸张或纸板的方法和装置，用于正在制造的纸幅的脱水。 纸幅从成形线转移到干燥部分中的线上，同时以特别高的速度恒定地支撑接收水，转印织物或任何其它相应的转印表面作为封闭绘制的织物， 高于约25-30m / s。 纸幅的脱水通过至少两个随后的压榨辊进行，其中至少一个压榨辊隙是所谓的延伸压区，其长度在机器方向上大于约100mm。 延伸压区是与移动的柔性压带环结合形成的。 在所述延伸压区压区中采用的压缩压力的分布在幅材的横向方向和机器方向上被调节和/或选择，以便设定或控制幅材的不同特性。

    Method for the removal of mercury from sulphuric acid with thiosulphate precipitation
    5.
    发明授权
    Method for the removal of mercury from sulphuric acid with thiosulphate precipitation 有权
    用硫代硫酸盐沉淀从硫酸中去除汞的方法

    公开(公告)号：US07452521B2

    公开(公告)日：2008-11-18

    申请号：US10566680

    申请日：2004-07-16

    申请人： Dag Berg ,  Jens Nyberg ,  Aija Rytioja ,  Heljä Peltola ,  Pekka Taskinen

    发明人： Dag Berg ,  Jens Nyberg ,  Aija Rytioja ,  Heljä Peltola ,  Pekka Taskinen

    IPC分类号： C01B17/90

    CPC分类号： C01G13/00 ,  C01B17/906 ,  Y10S210/914

    摘要： This invention relates to a method for removing mercury from dilute sulphuric acid. According to the method sulphuric acid solution is scrubbed with an aqueous solution containing thiosulphate, which precipitates the mercury present in the sulphuric acid solution either as mercury sulphide or, in a chlorine-containing environment, as a mercury sulphide-mercury chloride double salt. The quantity of thiosulphate to be fed is adjusted so that it precipitates the mercury in the sulphuric acid solution, but still does not form elemental sulphur.

    摘要翻译： 本发明涉及从稀硫酸中去除汞的方法。 根据该方法，用含硫代硫酸盐的水溶液洗涤硫酸溶液，其将硫酸溶液中存在的汞作为硫化汞或在含氯环境中沉淀为硫化汞 - 氯化汞复盐。 调整供给的硫代硫酸盐的量，使其在硫酸溶液中析出汞，但仍不形成元素硫。

    Method for the stabilization of a fluidized bed in a roasting furnace
    6.
    发明授权
    Method for the stabilization of a fluidized bed in a roasting furnace 失效
    在焙烧炉中稳定流化床的方法

    公开(公告)号：US06926752B2

    公开(公告)日：2005-08-09

    申请号：US10416863

    申请日：2001-11-13

    申请人： Pekka Taskinen ,  Maija-Leena Metsärinta ,  Jens Nyberg ,  Aija Rytioja

    发明人： Pekka Taskinen ,  Maija-Leena Metsärinta ,  Jens Nyberg ,  Aija Rytioja

    IPC分类号： C22B1/02 ,  C22B1/10 ,  C22B19/02

    CPC分类号： C22B19/02 ,  C22B1/10

    摘要： This invention relates to a method for stabilizing a fluidized bed used in roasting by adjusting the oxygen content of the roasting gas in the bed. The fine-grained material for roasting is fed into the furnace above the fluidized bed and the roasting gas, which causes the fluidizing, is fed into the bottom of the furnace through a grate. In this method, the total amount of oxygen in the roasting gas to be fed and the average total oxygen requirement of the material to be roasted are calculated and the ratio between them regulated so that the oxygen coefficient in the bed is over 1.

    摘要翻译： 本发明涉及通过调节床中焙烧气体的氧含量来稳定用于焙烧的流化床的方法。 用于焙烧的细粒材料被送入流化床上方的炉中，并且引起流化的焙烧气体通过炉排进入炉的底部。 在该方法中，计算要进料的焙烧气体中的氧气总量和待焙烧材料的平均总氧需求量，并且调节它们之间的比例，使床中的氧系数超过1。

    Method and Device for Treating Anode Slime
    9.
    发明申请
    Method and Device for Treating Anode Slime 失效
    用于处理阳极泥的方法和装置

    公开(公告)号：US20070274884A1

    公开(公告)日：2007-11-29

    申请号：US11570857

    申请日：2005-07-05

    申请人： Olli Järvinen ,  Pekka Taskinen ,  Olli Hyvarinen ,  Henri Virtanen ,  Leo Lindroos

    发明人： Olli Järvinen ,  Pekka Taskinen ,  Olli Hyvarinen ,  Henri Virtanen ,  Leo Lindroos

    IPC分类号： C22B1/06 ,  C22B11/02 ,  C22B7/00

    CPC分类号： C22B61/00 ,  C22B1/06 ,  C22B11/021 ,  Y02P10/214

    摘要： The method and furnace according to the invention enable a continuous processing of anode slime and are particularly suited to be connected to a process where anode slime is treated by hydrometallurgic methods after roasting. In the method according to the invention, the slime containing valuable metals and selenium is dried, roasted, sulfatized and cooled. The method includes steps to be carried out in succession, in continuous operation, so that the slime forms a slime layer on the conveyor and is conveyed to be treated in successive drying, roasting, sulfatizing and sulfuric acid removal and cooling units.

    摘要翻译： 根据本发明的方法和炉能够连续处理阳极泥，并且特别适合于连接到焙烧后通过湿法冶金方法处理阳极泥的方法。 在根据本发明的方法中，含有有价金属和硒的泥被干燥，焙烧，硫酸化和冷却。 该方法包括在连续操作中连续执行的步骤，使得粘泥在输送机上形成粘液层，并被输送以在连续的干燥，焙烧，硫酸盐化和硫酸去除和冷却单元中进行处理。

    Method for reducing build-up on a roasting furnace grate
    10.
    发明授权
    Method for reducing build-up on a roasting furnace grate 失效
    减少焙烧炉炉渣堆积的方法

    公开(公告)号：US07044996B2

    公开(公告)日：2006-05-16

    申请号：US10416862

    申请日：2001-11-13

    申请人： Pekka Taskinen ,  Maija-Leena Metsärinta ,  Juha Järvi ,  Jens Nyberg ,  Heikki Siirilä

    发明人： Pekka Taskinen ,  Maija-Leena Metsärinta ,  Juha Järvi ,  Jens Nyberg ,  Heikki Siirilä

    IPC分类号： C22B1/10

    CPC分类号： C22B19/02 ,  C22B1/10

    摘要： The present invention relates to method, which helps to reduce and remove the build-up forming on the grate of a fluidized-bed furnace in the roasting of fine-grained material such as concentrate. The concentrate is fed into the roaster from the wall of the furnace, and oxygen-containing gas is fed via gas nozzles under the grate in the bottom of the furnace in order to fluidize the concentrate and oxidize it during fluidization. Below the concentrate feed point, or feed grate, the oxygen content of the gas to be fed is raised compared with the oxygen content of the gas fed elsewhere.

    摘要翻译： 本发明涉及一种方法，其有助于减少和除去在诸如浓缩物的细粒材料的焙烧中的流化床炉的炉排上的堆积形成。 浓缩物从炉壁进料到烘焙机中，并且含氧气体通过炉底下的炉排下方的气体喷嘴进料，以使流化中的浓缩物流化并使其氧化。 在浓缩物进料点或进料格栅之下，与供给其他地方的气体的氧含量相比，要进料的气体的氧含量升高。