利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

20 条记录 (耗时 0.016 秒)

    Method for treatment of lignocellulosic material with chlorine
    1.
    发明授权
    Method for treatment of lignocellulosic material with chlorine 失效
    用氯处理木质纤维素材料的方法

    公开(公告)号：US4222818A

    公开(公告)日：1980-09-16

    申请号：US921370

    申请日：1978-07-03

    申请人： Johan Gullichsen ,  Frey V. Sundman

    发明人： Johan Gullichsen ,  Frey V. Sundman

    IPC分类号： D21C9/10 ,  D21C9/12 ,  D21C9/14

    CPC分类号： D21C9/1026 ,  D21C9/12

    摘要： A pulp containing lignocellulosic fibers is treated with chlorine in two steps. In the first step, chlorine in the amount of 0.6-0.9 grams per gram of lignin in the fibers, is mixed in the gaseous state into the pulp and in a second step the reaction products, which contain chlorinated lignin, are removed by displacing the liquid in the pulp with a chlorine solution, the amount of active chlorine in the solution in the second step being between 0.1 and 0.3 grams per gram of the lignin initially present in the pulp. In this manner 92% delignification is achieved without any intermediate washing between the two steps and with a total amount of chlorine between 0.7 and 1.2 grams per gram of lignin. The consistency of the pulp in both steps is the same and is between 6 and 12%.

    摘要翻译： 含有木质纤维素纤维的纸浆分两步处理氯气。 在第一步中，纤维中每克木质素0.6-0.9克的氯以气态混合到纸浆中，在第二步中，含有氯化木质素的反应产物通过置换 用氯溶液在纸浆中的液体，第二步溶液中活性氯的量为0.1至0.3克/克初始存在于纸浆中的木质素。 以这种方式，在两步之间没有任何中间洗涤并且氯的总量在每克木质素0.7至1.2克之间达到92％的脱木质素。 纸浆在两个步骤中的一致性相同，为6％至12％。

    Method for minimizing pulp mill effluents
    4.
    发明授权
    Method for minimizing pulp mill effluents 失效
    减少纸浆厂废水的方法

    公开(公告)号：US5374333A

    公开(公告)日：1994-12-20

    申请号：US922334

    申请日：1992-07-30

    申请人： Tuomo S. Nykanen ,  Brian F. Greenwood ,  Johan Gullichsen ,  Erkki Kiiskila ,  Esko Mattelmaki ,  Joseph R. Phillips ,  Jan Richardsen ,  Rolf Ryham ,  Jarmo Soderman ,  Karl G. Wiklund

    发明人： Tuomo S. Nykanen ,  Brian F. Greenwood ,  Johan Gullichsen ,  Erkki Kiiskila ,  Esko Mattelmaki ,  Joseph R. Phillips ,  Jan Richardsen ,  Rolf Ryham ,  Jarmo Soderman ,  Karl G. Wiklund

    IPC分类号： D21C9/10 ,  D21C11/00 ,  D21C11/12

    CPC分类号： D21C11/0021 ,  Y10S162/08

    摘要： Apparatus for a pulp and paper mill, and methods of acting on liquid effluents produced in the mill, which minimizes the discharge of polluting gaseous and liquid effluents to the environment. Liquid effluents from the bleach plant are concentrated (e.g. evaporated), incinerated (e.g. gasified), leached, crystallized (e.g. freeze crystallized) then washed, and then fed to the plant chemical recovery loop. White liquor produced from the recovery boiler melt is fully oxidized and used in place of caustic in the bleach plant. Essentially all sulfuric acid, sulfur dioxide, caustic, and chlorine dioxide necessary for the pulp mill is produced from mill liquid effluents and gas waste streams, on site at the pulp mill. Typical bleaching sequences that can be used are DE.sub.op D.sub.n D, or AZE.sub.o PZP.

    摘要翻译： 用于纸浆和造纸厂的设备，以及作用于在磨机中产生的液体流出物上的方法，其最大限度地减少污染的气态和液体流出物排放到环境中。 来自漂白设备的液体流出物被浓缩（例如蒸发），焚化（例如气化），沥滤，结晶（例如冷冻结晶），然后洗涤，然后进料至植物化学回收循环。 从回收锅炉熔体产生的白液被完全氧化并用于漂白设备中的苛性碱。 纸浆厂所必需的硫酸，二氧化硫，苛性碱和二氧化氯基本上都是从磨浆液流出物和废气流中产生的。 可以使用的典型漂白序列是DEopDnD或AZEoPZP。

    Method of removing lignin from bleach plant effluents
    5.
    发明授权
    Method of removing lignin from bleach plant effluents 失效
    从漂白植物废水中去除木质素的方法

    公开(公告)号：US4812207A

    公开(公告)日：1989-03-14

    申请号：US122598

    申请日：1987-11-18

    申请人： Johan Gullichsen ,  Pertti Hynninen

    发明人： Johan Gullichsen ,  Pertti Hynninen

    IPC分类号： D21C11/00 ,  C02F1/52 ,  C02F9/00 ,  C02F1/58

    CPC分类号： C02F1/52 ,  C02F2103/28 ,  Y10S210/928

    摘要： A method of removing lignin from bleach plant effluents by using cellulose fibres. The method comprises an acidous phase during which sludge containing cellulose fibres is added to the acidous effluent, and an alkaline phase during which alkaline waste water is added to the effluent-sludge solution. A portion of the produced fraction containing fibres is recirculated to the acidous phase for reuse of the fibres.

    摘要翻译： 通过使用纤维素纤维从漂白植物废水中除去木质素的方法。 该方法包括酸性相，其中将含有纤维素纤维的污泥加入到酸性流出物中，在碱性阶段向其中加入碱性废水。 产生的含有纤维的部分的一部分再循环到酸性相中以再利用纤维。

    Process for washing cellulose pulp from alkali digestion wherein acid is added to the washing solution
    6.
    发明授权
    Process for washing cellulose pulp from alkali digestion wherein acid is added to the washing solution 失效
    从碱消解中洗涤纤维素纸浆的方法，其中将酸加入到洗涤溶液中

    公开(公告)号：US4042452A

    公开(公告)日：1977-08-16

    申请号：US608034

    申请日：1975-08-27

    申请人： Bengt Arhippainen ,  Johan Gullichsen

    发明人： Bengt Arhippainen ,  Johan Gullichsen

    IPC分类号： D21C9/02

    CPC分类号： D21C9/02

    摘要： A process for washing a cellulose pulp from alkali digestion, wherein the pulp is fed into a multistage washing system comprising several countercurrently coupled washers, acid is added to a washing solution, the acidified fiber suspension is fed further to the following stage wherein the acidified solution is replaced in the fiber suspension by washing water, and the filtrate obtained from this stage is used after acidification at least partially as a washing solution at the previous stage. The acid is added at a stage when the concentration of the dissolved organic substances is at a value that detrimental precipitation of the organic substances is prevented.

    摘要翻译： 一种从碱消化中洗涤纤维素纸浆的方法，其中将纸浆送入包含多个逆流耦合垫圈的多级洗涤系统中，将酸加入到洗涤溶液中，将酸化的纤维悬浮液进一步加入到下一阶段，其中酸化溶液 通过洗涤水在纤维悬浮液中替代，并且从该阶段获得的滤液至少部分地作为前一阶段的洗涤溶液在酸化之后使用。 当溶解的有机物质的浓度处于防止有机物质的有害沉淀的值时，加入酸。

    Combined fluidizing and vacuum pump
    8.
    发明授权
    Combined fluidizing and vacuum pump 失效
    联合流化和真空泵

    公开(公告)号：US4776758A

    公开(公告)日：1988-10-11

    申请号：US070220

    申请日：1987-07-06

    申请人： Johan Gullichsen

    发明人： Johan Gullichsen

    IPC分类号： B01D19/00 ,  D21D5/26 ,  F04C23/00 ,  F04D7/04 ,  F04D9/00 ,  F04D9/04 ,  F01D25/32

    CPC分类号： B01D19/0052 ,  D21D5/26 ,  F04C23/005 ,  F04D7/04 ,  F04D9/003 ,  F04D9/041

    摘要： A pump for medium consistency suspensions (e.g. 6-15%), such as paper pulp, simultaneously pumps and degasses the suspension. A common shaft mounts a fluidizing impeller and a vacuum pump impeller and a common wall with gas exhaust passageways is disposed between the fluidizing pump housing and vacuum pump housing. Gas separated from the suspension flows through the gas passageways in the common wall, through the vacuum pump, past the vacuum impeller, and is expelled out the opposite side of the vacuum pump from the gas inlet passageways. A pressure responsive valve provides make-up air to the vacuum pump if the vacuum pulled is too strong, to prevent suspension from being pulled through the vacuum pump. A liquid inlet supplies liquid in the vacuum pump to define a liquid ring, the inner periphery of the ring defined by the expelled gas outlet.

    Method and apparatus for refining fibrous material
    9.
    发明授权
    Method and apparatus for refining fibrous material 失效
    用于精制纤维材料的方法和设备

    公开(公告)号：US4754935A

    公开(公告)日：1988-07-05

    申请号：US37005

    申请日：1987-04-10

    申请人： Johan Gullichsen

    发明人： Johan Gullichsen

    IPC分类号： D21B1/14 ,  D21D1/22 ,  B02C19/12

    CPC分类号： D21D1/22

    摘要： A refiner has a frusto-conically shaped grinding zone located between an outer housing and an inner frusto-conical rotor. The rotor has suitable openings for removing steam from the grinding zone inwardly into an interior chamber within the rotor. Multiple separation stages are provided in the rotor and between it and the housing, respectively, whereby separation of the steam and any following fibrous material particles is effected. By removing the steam from the grinding zone, increased retention time of the fibrous material in the grinding zone and increased production is effected.

    摘要翻译： 精磨机具有位于外壳体和内截头圆锥形转子之间的截头圆锥形磨削区域。 转子具有合适的开口，用于将研磨区的蒸汽向内移入转子内的内部室。 分别在转子及其与壳体之间设置多个分离台，从而实现蒸汽和任何后续的纤维材料颗粒的分离。 通过从研​​磨区除去蒸汽，可以提高纤维材料在研磨区中的保留时间，并增加生产。

    Method and an apparatus for separating a gas from a fibre suspension
    10.
    发明授权
    Method and an apparatus for separating a gas from a fibre suspension 失效
    从纤维悬浮液中分离气体的方法和装置

    公开(公告)号：US4410337A

    公开(公告)日：1983-10-18

    申请号：US139162

    申请日：1980-04-07

    申请人： Johan Gullichsen ,  Jaakko P. Kujala ,  Toivo J. Niskanen ,  Voitto O. A. Reponen ,  Esko J. Harkonen

    发明人： Johan Gullichsen ,  Jaakko P. Kujala ,  Toivo J. Niskanen ,  Voitto O. A. Reponen ,  Esko J. Harkonen

    IPC分类号： B01D19/00 ,  D21D5/26 ,  F04D7/04

    CPC分类号： F04D7/045 ,  B01D19/0057 ,  D21D5/26 ,  F05B2210/132

    摘要： Gas is removed from a fibre suspension of high consistency by means of an apparatus having a rotor chamber and a rotor disposed for rotation in the rotor chamber. The rotor has blades adapted to fluidize the fibre suspension and to cause a centrally located core of gas surrounded by a cylindrical layer of fibre suspension to form. The rotor has a plate located in the portion of the rotor opposite to the inlet of the rotor chamber which has an opening or openings close to the rotor axis. The gas is removed from the rotor chamber through the openings in the plate to a gas discharge and the fibre suspension essentially free of gas is discharged through an outlet. The operation of the apparatus is controlled by maintaining the pressure difference between the inlet and the gas discharge at a predetermined level.

    摘要翻译： 通过具有转子室和设置用于在转子室中转动的转子的装置将气体从高稠度的纤维悬浮液中除去。 转子具有适于使纤维悬浮液流态化的叶片并且使得由圆柱形纤维悬浮液层包围的中心位置的气体芯形成。 转子具有位于转子的与转子室的入口相对的部分中的板，其具有接近转子轴线的开口或开口。 气体通过板中的开口从转子室移除到气体排出口，并且基本上不含气体的纤维悬浮液通过出口排出。 通过将入口和气体排出之间的压力差保持在预定水平来控制设备的操作。