公开(公告)号：US20140102648A1

公开(公告)日：2014-04-17

申请号：US13261740

申请日：2012-03-21

申请人： Janne Vehmaa ,  Johan Engstrom ,  Jussi Piira

发明人： Janne Vehmaa ,  Johan Engstrom ,  Jussi Piira

IPC分类号： D21C3/24 ,  D21C7/00

CPC分类号： D21C3/24 ,  D21C7/00 ,  D21C9/02 ,  D21C9/147

摘要： A method to pulp cellulosic fibrous material including: alkaline cooking cellulosic fibrous material in a continuous digester vessel to produce a pulp having a kappa number in a range of 50 to 120; washing the pulp discharged from the digester vessel; treating the washed pulp in the presence of oxygen and alkali to remove lignin; washing the oxygen-treated pulp such that the kappa number is recued by at least at least 30; separating lignin from wash filtrate generated by the washing of the oxygen-treated pulp, and using the separated wash filtrate as a washing liquid in the washing of the pulp from the digester vessel.

摘要翻译： 一种纸浆纤维素纤维材料的方法，包括：在连续蒸煮器容器中碱性烹饪纤维素纤维材料，以产生卡布氏数在50至120范围内的纸浆; 洗涤从蒸煮器皿排出的纸浆; 在氧和碱的存在下处理洗涤的纸浆以除去木质素; 洗涤经氧处理的纸浆，使得卡伯值至少再次达到30; 通过洗涤氧气处理的纸浆从洗涤的滤液中分离木质素，并且使用分离的洗涤滤液作为洗涤液从洗涤槽中洗涤纸浆。

公开(公告)号：US20110120663A1

公开(公告)日：2011-05-26

申请号：US12950342

申请日：2010-11-19

申请人： Johan ENGSTROM ,  Jussi PIIRA ,  Janne VEHMAA ,  Veli-Pekka TERVOLA ,  Aaron LEAVITT

发明人： Johan ENGSTROM ,  Jussi PIIRA ,  Janne VEHMAA ,  Veli-Pekka TERVOLA ,  Aaron LEAVITT

IPC分类号： D21C3/00 ,  D21C7/10

CPC分类号： D21C7/00 ,  D21C3/02

摘要： A method to cook thin chips in a continuous digester vessel including: introducing thin chips having a thickness of no more than 6 mm, into a chip bin; adding white (cooking) liquor to the chip bin or to a chip transport passage extending from the chip bin to an upper inlet of the continuous digester vessel; injecting medium pressure steam or another heated fluid to an upper region of the digester vessel to elevate a cooking temperature of the chips in the vessel to at least 130 degrees Celsius; cooking the chips in the vessel as the chips flow downward through the vessel without substantial extraction or introduction of liquor in the cooking section of the vessel; injecting wash liquid to a lower region of the vessel; extracting at least wash liquid through a wash liquid extraction screen in the lower region of the vessel and above the injection of the wash liquid, and discharging the cooked thin chips from the lower region of the vessel.

摘要翻译： 一种在连续蒸煮容器中制造薄片的方法，包括：将厚度不超过6毫米的薄片引入碎片仓; 将白色（烹饪）液体加入到切屑仓或从碎屑仓延伸到连续蒸煮器容器的上部入口的碎屑输送通道; 将中压蒸汽或另一加热流体注入到所述蒸煮器容器的上部区域以将所述容器中的所述碎屑的烹饪温度升高至至少130摄氏度; 当芯片向下流过容器时，在容器的烹饪部分中没有大量提取或引入液体的情况下，在容器中烹饪碎屑; 将洗涤液注射到所述容器的下部区域; 至少通过在容器的下部区域中的洗涤液体提取筛和洗涤液的注射之上提取清洗液体，并且从容器的下部区域排出煮熟的薄片。

公开(公告)号：US08641865B2

公开(公告)日：2014-02-04

申请号：US12950342

申请日：2010-11-19

申请人： Johan Engstrom ,  Jussi Piira ,  Janne Vehmaa ,  Veli-Pekka Tervola ,  Aaron Leavitt

发明人： Johan Engstrom ,  Jussi Piira ,  Janne Vehmaa ,  Veli-Pekka Tervola ,  Aaron Leavitt

IPC分类号： D21C9/08

CPC分类号： D21C7/00 ,  D21C3/02

摘要： A method to cook thin chips in a continuous digester vessel including: introducing thin chips having a thickness of no more than 6 mm, into a chip bin; adding white (cooking) liquor to the chip bin or to a chip transport passage extending from the chip bin to an upper inlet of the continuous digester vessel; injecting medium pressure steam or another heated fluid to an upper region of the digester vessel to elevate a cooking temperature of the chips in the vessel to at least 130 degrees Celsius; cooking the chips in the vessel as the chips flow downward through the vessel without substantial extraction or introduction of liquor in the cooking section of the vessel; injecting wash liquid to a lower region of the vessel; extracting at least wash liquid through a wash liquid extraction screen in the lower region of the vessel and above the injection of the wash liquid, and discharging the cooked thin chips from the lower region of the vessel.

摘要翻译： 一种在连续蒸煮容器中制造薄片的方法，包括：将厚度不超过6毫米的薄片引入碎片仓; 将白色（烹饪）液体加入到切屑仓或从碎屑仓延伸到连续蒸煮器容器的上部入口的碎屑输送通道; 将中压蒸汽或另一加热流体注入到所述蒸煮器容器的上部区域以将所述容器中的所述碎屑的烹饪温度升高至至少130摄氏度; 当芯片向下流过容器时，在容器的烹饪部分中没有大量提取或引入液体的情况下，在容器中烹饪碎屑; 将洗涤液注射到所述容器的下部区域; 至少通过在容器的下部区域中的洗涤液体提取筛和洗涤液的注入以上并且从容器的下部区域排出煮熟的薄片来洗涤液体。