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    CONTINUOUS DIGESTER AND FEEDING SYSTEM
    1.
    发明申请
    CONTINUOUS DIGESTER AND FEEDING SYSTEM 有权
    连续进料和进料系统

    公开(公告)号：US20160145797A1

    公开(公告)日：2016-05-26

    申请号：US14554105

    申请日：2014-11-26

    申请人： INTERNATIONAL PAPER COMPANY

    发明人： KEVIN M. MC CANTY

    IPC分类号： D21C11/00 ,  D21C7/10

    CPC分类号： D21C7/06 ,  D21C3/00 ,  D21C7/00 ,  D21C7/10 ,  D21C7/14 ,  D21C11/0021

    摘要： One embodiment provides an apparatus for cooking lignocellulosic material, comprising a pressurizable, inclined top separator including a sluicing liquor inlet for receiving a sluicing mixture comprising impregnated lignocellulosic material and sluicing liquor, a hot black liquor inlet, an excess liquor outlet, and an impregnated lignocellulosic material outlet; a continuous digester vessel including an impregnated lignocellulosic material inlet in communication with the impregnated lignocellulosic material outlet, and a warm black liquor outlet; and a black liquor circulation and heating loop including a warm black liquor inlet in communication with said warm black liquor outlet, a heater for heating warm black liquor to produce hot black liquor, and a hot black liquor outlet in communication with said hot black liquor inlet. Methods of making and using the apparatus are also provided.

    摘要翻译： 一个实施方案提供了一种用于烹饪木质纤维素材料的装置，包括可加压的倾斜的顶部分离器，其包括用于接收包含浸渍的木质纤维素材料和洗涤液的洗涤混合物的洗涤液入口，热黑液入口，过量的液体出口和浸渍的木质纤维素 材料出口; 连续的蒸煮器容器包括与浸渍的木质纤维素出口连通的浸渍的木质纤维素材料入口和暖黑液出口; 以及包括与所述暖黑液出口连通的暖黑液入口的黑液循环和加热回路，用于加热暖黑液以产生热黑液的加热器，以及与所述热黑液入口连通的热黑液出口 。 还提供了制造和使用该装置的方法。

    Whitewater recovery process
    2.
    发明授权
    Whitewater recovery process 有权
    白水恢复过程

    公开(公告)号：US08986503B2

    公开(公告)日：2015-03-24

    申请号：US13801306

    申请日：2013-03-13

    申请人： Kadant Inc.

    发明人： Philip Mason Kemp ,  Chris Spence

    IPC分类号： D21F1/66 ,  C02F1/24 ,  C02F1/32 ,  C02F1/48 ,  C02F1/52 ,  C02F1/66 ,  C02F1/42 ,  C02F103/28

    CPC分类号： D21F1/66 ,  C02F1/24 ,  C02F1/32 ,  C02F1/488 ,  C02F1/52 ,  C02F1/66 ,  C02F2001/425 ,  C02F2103/28 ,  D21C11/0021

    摘要： Whitewater recovery processes, and associated systems and components, are generally described. Certain embodiments relate to whitewater recovery processes in which ion exchange is used to remove dissolved ions from the whitewater, which can reduce the degree to which chemical additives are used in the process. In certain embodiments, flocculation and/or filter components can be employed to aid in the removal of suspended solids from the whitewater.

    摘要翻译： 白水恢复过程以及相关的系统和组件一般被描述。 某些实施方案涉及白水回收方法，其中使用离子交换来从白水中除去溶解的离子，这可以降低在该方法中使用化学添加剂的程度。 在某些实施方案中，可以使用絮凝和/或过滤组分来帮助从白水中除去悬浮固体。

    Method for an energy efficient production of cellulose pulp in a continuous digester
    3.
    发明授权
    Method for an energy efficient production of cellulose pulp in a continuous digester 失效
    在连续蒸煮器中有效生产纤维素纸浆的方法

    公开(公告)号：US08691049B2

    公开(公告)日：2014-04-08

    申请号：US12443925

    申请日：2007-11-05

    申请人： Vidar Snekkenes

    发明人： Vidar Snekkenes

    IPC分类号： D21C3/26 ,  D21C7/14 ,  D21C7/06 ,  D21C7/10 ,  D21C3/24 ,  D21C11/00

    CPC分类号： D21C7/14 ,  D21C3/24 ,  D21C7/06 ,  D21C7/10 ,  D21C11/0021

    摘要： The method is for the production of cellulose pulp in a continuous digester system. Chips are impregnated in an impregnation vessel. The chips are then fed to a subsequent digester vessel in a transfer fluid. A black liquor withdrawal is taken from the digester, which withdrawal is led to the bottom to heat the chips before the chips are fed out from the impregnation vessel. A transfer fluid is withdrawn from the digester and led to the impregnation vessel to act as an impregnation fluid. At least a portion of the transfer fluid that was withdrawn from the top of the digester passes an indirect heat exchanger, in which the transfer fluid withdrawn from the top of the digester at a temperature of at least 125° C. exchanges heat indirectly with a first fluid for the production of steam from the first fluid.

    摘要翻译： 该方法用于在连续蒸煮器系统中生产纤维素纸浆。 将芯片浸渍在浸渍容器中。 然后将芯片输送到转移流体中的随后的蒸煮器容器中。 从蒸煮器取出黑液取出，在从浸渍容器送出碎屑之前，将该提取物导向底部加热碎屑。 转移流体从蒸煮器中取出并导致浸渍容器充当浸渍流体。 从蒸煮器顶部排出的至少一部分转移流体通过间接热交换器，其中在至少125℃的温度下从蒸煮器的顶部排出的转移流体间接地与 第一流体用于从第一流体生产蒸汽。

    Batch process for preparing pulp
    4.
    发明申请
    Batch process for preparing pulp 审中-公开
    批量制浆

    公开(公告)号：US20060175029A1

    公开(公告)日：2006-08-10

    申请号：US10564373

    申请日：2004-12-22

    申请人： Seppo Martikainen ,  Panu Tikka ,  Olli Timonen ,  Mikael Svedman

    发明人： Seppo Martikainen ,  Panu Tikka ,  Olli Timonen ,  Mikael Svedman

    IPC分类号： D21C3/02 ,  D21C3/26 ,  D21C1/06

    CPC分类号： D21C1/06 ,  D21C3/02 ,  D21C3/222 ,  D21C3/26 ,  D21C11/0021

    摘要： According to the invention, polysulfide is used in the manufacture of kraft pulp in the initial stage of a displacement batch process in order to improve the yield. Polysulfide-containing white liquor is added inter-mixed with the first liquor charged to the digester, or as a separate charge before the impregnation liquor is introduced. Preferably, a cooking catalyst, e.g. antraquinone, is added to the white liquor charge as the cooking stage commences.

    摘要翻译： 根据本发明，为了提高产量，在置换分批处理的初始阶段，将硫化物用于制造牛皮纸浆。 加入含硫化钠的白液与加入蒸煮器的第一液相混合，或在引入浸渍液之前作为单独的电荷。 优选地，烹饪催化剂，例如 蒽醌在烹饪阶段开始时加入到白液装料中。

    Method and a device for preparing cellulose pulp
    5.
    发明申请
    Method and a device for preparing cellulose pulp 审中-公开
    制备纤维素纸浆的方法和装置

    公开(公告)号：US20060070710A1

    公开(公告)日：2006-04-06

    申请号：US11242587

    申请日：2005-10-03

    申请人： Lasse Hernesniemi ,  Rami Lampinen ,  Antti Tuominen ,  Tuomo Nykanen

    发明人： Lasse Hernesniemi ,  Rami Lampinen ,  Antti Tuominen ,  Tuomo Nykanen

    IPC分类号： D21C11/10 ,  D21C7/00 ,  D21C3/02 ,  D21C3/22 ,  D21C3/24

    CPC分类号： D21C1/06 ,  D21C1/00 ,  D21C11/0021 ,  D21C11/10

    摘要： A method and an apparatus for preparing cellulose pulp, in which a lignin-containing raw material is impregnated with impregnation liquor and the impregnated raw material is cooked. The black liquor obtained by cooking is concentrated in an evaporation plant integrated in a chemical recovery plant. In the impregnation, the lignin-containing raw material is impregnated with a circulating alkaline impregnating liquor, which impregnating liquor is concentrated by evaporating water from it in at least one evaporator unit of the evaporation plant arranged in the chemical recovery plant of a pulp mill.

    摘要翻译： 一种用于制备纤维素纸浆的方法和装置，其中含有含木质素的原料用浸渍液浸渍并且浸渍的原料被煮熟。 通过烹饪获得的黑液浓缩在集成在化学回收装置中的蒸发装置中。 在浸渍中，含有木质素的原料用循环的碱性浸渍液浸渍，浸渍液通过在布置在纸浆厂的化学回收设备中的蒸发设备的至少一个蒸发器单元中从其中蒸发而浓缩。

    Method of continuous pulping in a digester with high black liquor usage in the impregnation stage
    8.
    发明授权
    Method of continuous pulping in a digester with high black liquor usage in the impregnation stage 失效
    在浸渍阶段使用高黑液的蒸煮器中连续制浆的方法

    公开(公告)号：US5925216A

    公开(公告)日：1999-07-20

    申请号：US854948

    申请日：1997-08-05

    申请人： Anders Bergqvist ,  Johan Engstrom

    发明人： Anders Bergqvist ,  Johan Engstrom

    IPC分类号： D21C3/24 ,  D21C7/14 ,  D21C11/00

    CPC分类号： D21C11/0021 ,  D21C3/24 ,  D21C7/14

    摘要： The present invention provides a method for continuously cooking kraft pulp in a digester having the steps of:feeding chips into an inlet of a digester;supplying black liquor to an impregnation zone of the digester in an amount such that the black liquor makes up greater than 40% by volume of the total volume of liquid present in the impregnation zone;extracting liquor from a screen girdle downstream of where the black liquor is added to the digester, in the direction the wood chips flow through the digester, in an amount greater than 50% by volume of the total volume of liquor present at the location of the screen girdle;maintaining a liquor:wood ratio in the impregnation zone of greater than 3:1; anddischarging cooked pulp from the digester.

    摘要翻译： 本发明提供了一种在蒸煮器中连续烹制牛皮纸浆的方法，该方法具有以下步骤：将碎屑送入消化器的入口; 将黑液供应到消化器的浸渍区域，其量使得黑液占所述浸渍区域中存在的液体总体积的40体积％以上; 从黑色液体加入到蒸煮器下游的丝网带提取液体，其方式为木片流过消化器，其量大于存在于该位置的液体总体积的50体积％ 屏风腰带 保持浸渍区中的酒：木比例大于3：1; 并从蒸煮器排出煮熟的纸浆。