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1. 发明授权

US6086713A Method of treating pulp 失效
标题翻译：纸浆处理方法
公开(公告)号：US6086713A
公开(公告)日：2000-07-11
申请号：US14285
申请日：1998-01-27
申请人： Harri Qvintus , Pekka Tervola
发明人： Harri Qvintus , Pekka Tervola
IPC分类号： B01D11/00 , B01D11/02 , D21C9/02 , D21C9/06
CPC分类号： B01D11/023 , D21C9/02 , D21C9/06 , B01D2011/002
摘要： A method is provided by which it possible to intensify a cellulose pulp wash without requiring the purchase of additional equipment. In a washing system having a plurality of stages with a filtrate from each stage, the stages in sequence being N, N+1, etc., and each stage including filtrates F.sub.N and F.sub.N+1, etc., part of the filtrate F.sub.N (e.g. about 5-30 %) is combined with all or part of the filtrate for F.sub.N+1 to produce a combined filtrate, and the combined filtrate is fed in washing stage N as wash liquid. The part of the filtrate F.sub.N that is taken for use as wash liquid in stage N is typically from the end of the washing stage N. The process may be repeated for most of the stages of the washing system.
摘要翻译：提供了一种可以加强纤维素纸浆洗涤而不需要购买附加设备的方法。在具有多个阶段的洗涤系统中，具有来自各阶段的滤液，其阶段为N，N + 1等，并且每个阶段包括滤液FN和FN + 1等，部分滤液FN（例如约5-30％）与用于FN + 1的全部或部分滤液组合以产生组合的滤液，并将合并的滤液作为洗涤液体在洗涤阶段N中进料。在阶段N中被用作洗涤液体的滤液FN的一部分通常是从洗涤阶段N的末端开始。洗涤系统的大部分阶段可以重复该过程。

2. 发明授权

US06461473B1 Supply of washing liquid in a fractionating multi-stage washer 有权
$Supply of washing liquid in a fractionating multi-stage washer$
标题翻译：在分级多级洗衣机中供应洗涤液
公开(公告)号：US06461473B1
公开(公告)日：2002-10-08
申请号：US09158882
申请日：1998-09-23
申请人： Harri Qvintus , Pekka Tervola
发明人： Harri Qvintus , Pekka Tervola
IPC分类号： D21C902
CPC分类号： D21C9/06 , D21C9/02 , D21C9/08
摘要： A process for washing pulp including a dilution step, an extraction step and a subsequent displacement step. The process further includes the steps of: diluting the pulp; passing the diluted pulp to the extraction step; developing a first filtrate from the extraction step; passing the pulp from the extraction step to the displacement step; developing a second filtrate from the displacement step; segregating the first and second filtrates; providing the second filtrate to the dilution step; providing a determined minimum volume of the first filtrate needed for the dilution step; and eliminating the remaining volume of the first filtrate from further use in the washing of the pulp.
摘要翻译：一种用于清洗纸浆的方法，包括稀释步骤，萃取步骤和随后的置换步骤。该方法还包括以下步骤：稀释纸浆; 将稀释的纸浆通入萃取步骤; 从提取步骤开发第一滤液; 将纸浆从提取步骤送入位移步骤; 从置换步骤开发第二滤液; 分离第一和第二滤液; 向稀释步骤提供第二滤液; 提供稀释步骤所需的第一滤液的确定的最小体积; 并且消除第一滤液的剩余体积以进一步用于纸浆的洗涤。

3. 发明授权

US6159338A Supply of washing liquid in a fractionating multi-stage washer 失效
$Supply of washing liquid in a fractionating multi-stage washer$
标题翻译：在分级多级洗衣机中供应洗涤液
公开(公告)号：US6159338A
公开(公告)日：2000-12-12
申请号：US29640
申请日：1998-03-23
申请人： Harri Qvintus , Pekka Tervola
发明人： Harri Qvintus , Pekka Tervola
IPC分类号： D21C9/02 , D21C9/06 , D21C9/08 , D21C5/00
CPC分类号： D21C9/06 , D21C9/02 , D21C9/08
摘要： A method of displacement washing of cellulose pulp achieves substantially optimal results without the consumption of excessive clean wash liquid. In the practice of the method there is at least one washing stage, and a second stage, including a suction, press, and/or thickening stage, following the washing stage. Cellulose pulp is fed to the washing stage, and then the washed pulp is fed to the second stage. A first filtrate is withdrawn from the second stage and a second filtrate is withdrawn from a washing stage of the at least one washing stage, or the second stage. The first filtrate is directed to the washing stage and the first filtrate is used as washing liquid in the washing stage. For example the washing stage may include a last washing stage in a multi-stage fractionating washer, and the second stage may be in the fractionating washer; and the first filtrate may be directed to the last washing stage of the multi-stage fractionating washer.
摘要翻译： PCT No.PCT / FI96 / 00316 Sec。 371日期：1998年3月23日 102（e）1998年3月23日PCT PCT 1996年5月31日PCT公布。公开号WO97 / 10379 日期1997年3月20日纤维素纸浆的置换洗涤方法实现了基本上最佳的结果，而不需要过量清洁的洗涤液体。在该方法的实践中，在洗涤阶段之后，至少有一个洗涤阶段和第二阶段，包括抽吸，压榨和/或增稠阶段。将纤维素纸浆进料到洗涤阶段，然后将洗涤后的纸浆进料至第二阶段。从第二阶段取出第一滤液，从洗涤阶段或第二阶段的洗涤阶段取出第二滤液。将第一滤液送至洗涤阶段，将第一滤液用作洗涤阶段的洗涤液。例如，洗涤阶段可以包括多级分级洗涤器中的最后一个洗涤阶段，第二阶段可以在分级洗涤器中; 并且第一滤液可以被引导到多级分级洗涤器的最后洗涤阶段。

4. 发明授权

US08052839B2 Apparatus and method for washing pulps 有权
标题翻译：洗浆纸的设备和方法
公开(公告)号：US08052839B2
公开(公告)日：2011-11-08
申请号：US11574687
申请日：2005-09-07
申请人： Olavi Pikka , Pekka Tervola , Hannu Rönkönharju
发明人： Olavi Pikka , Pekka Tervola , Hannu Rönkönharju
IPC分类号： D21C9/02
CPC分类号： D21C9/06 , D21C9/1057
摘要： An apparatus for treating pulp including: at least one liquid-permeable surface rotating around a shaft, onto which surface a pulp layer is formed; a feeder to feed pulp to the apparatus for treatment on the liquid-permeable surface; an internal barrier defining a first pulp treatment section and a second pulp treatment section; the first treatment section receiving from the feeder a first type of pulp and the second treatment section receiving from the feeder a second type of pulp, wherein the first type of pulp is supplied to the feeder from a first pulp treatment stage in a pulping system and the second type of pulp is supplied to the feeder from a second pulp treatment stage in the pulping system, and a pulp discharge to discharge treated pulp from the apparatus, wherein the pulp discharge discharges the first type of pulp after treatment separately from discharging the second type of pulp after treatment, and a filtrate discharge to discharge filtrate flowing through the liquid-permeable from the apparatus.
摘要翻译：一种用于处理纸浆的设备，包括：围绕轴旋转的至少一个液体可透过表面，在其上形成纸浆层的表面; 用于将纸浆输送到用于在液体可渗透表面上处理的设备的进料器; 限定第一纸浆处理部分和第二纸浆处理部分的内部屏障; 所述第一处理部从所述进料器接收第一类型的纸浆，并且所述第二处理部分从所述进料器接收第二类型的纸浆，其中所述第一类型的纸浆从制浆系统中的第一纸浆处理阶段供应到所述进料器，第二类型的纸浆从制浆系统中的第二纸浆处理阶段供给到进料器，并且纸浆排出物从设备中排出经处理的纸浆，其中纸浆排出将处理后的第一种纸浆排放出来，排出第二种纸浆处理后的纸浆类型和滤液排出物排出流过可透过液体的滤液。

5. 发明授权

US5660686A Cooking with spent liquor pretreatment of cellulose material 失效
标题翻译：用废液预处理纤维素材料进行烹饪
公开(公告)号：US5660686A
公开(公告)日：1997-08-26
申请号：US403932
申请日：1995-03-14
申请人： Kaj O. Henricson , Pekka Tervola
发明人： Kaj O. Henricson , Pekka Tervola
IPC分类号： D21C3/02 , D21C3/24 , D21C7/00 , D21C11/00 , D21C7/14 , D21C3/26
CPC分类号： D21C7/00 , D21C3/022 , D21C3/24
摘要： A method and continuous digester system provide for a high Na.sub.2 S concentration in the beginning of the cook of comminuted cellulosic fibrous material to produce cellulose pulp, providing a more selective cook and potential to lower cooking kappa. Two different streams of spent (e.g. "sulphurous" and "black") liquor are removed from different screens associated with continuous digesters. The spent liquor removed from the uppermost screen has a relatively high effective alkali and Na.sub.2 S concentration. The second spent liquor, removed from the second screen, has effective alkali and Na.sub.2 S concentrations which are at least 25% less than for the first spent liquor. The first spent liquor is circulated to an impregnation vessel, or other part of a chip feed system, to enhance the amount of sulphur present at the beginning of the cooking stage in the digester. The second spent liquor may be used in a number of ways, including--with or without first passing it through a flash tank--circulating it to a chip slurrying system for slurrying the chips so that they can be fed to the digester. The steaming and slurrying system may include only an unpressurized chip bin, chip feeder, slurrying vessel, and high pressure feeder, thus being simpler than conventional constructions.
摘要翻译：一种方法和连续的蒸煮器系统在粉碎的纤维素纤维材料的煮熟开始时提供高的Na 2 S浓度以产生纤维素纸浆，提供更有选择性的烹饪和降低烹调kappa的潜力。从与连续消化器相关联的不同筛网中除去两种不同的废料流（例如“硫”和“黑”）液。从最上面的筛网中除去的废液具有相对高的有效碱和Na2S浓度。从第二筛中除去的第二种废液具有有效的碱和Na2S浓度，比第一种废液低至少25％。将第一种废液循环到浸渍容器或芯片进料系统的其他部分，以增加在蒸煮器中烹饪阶段开始时存在的硫的量。第二种废液可以以多种方式使用，包括 - 首先将其通过闪蒸罐 - 将其循环到用于浆料浆料的芯片制浆系统中，使得它们可以进料到蒸煮器。蒸汽和制浆系统可以仅包括非加压的碎片仓，碎屑进料器，浆料容器和高压进料器，因此比常规结构简单。

6. 发明授权

US08815053B2 Method of treating liquid flows at a chemical pulp mill 有权
标题翻译：在化学纸浆厂处理液体流动的方法
公开(公告)号：US08815053B2
公开(公告)日：2014-08-26
申请号：US13512220
申请日：2010-11-22
申请人： Janne Vehmaa , Olavi Pikka , Pekka Tervola
发明人： Janne Vehmaa , Olavi Pikka , Pekka Tervola
IPC分类号： D21C11/00
CPC分类号： D21C11/00 , D21C3/02 , D21C9/02 , D21C9/083 , D21C9/1057 , D21C9/144
摘要： A method of treating and utilizing liquid flows at a chemical pulp mill including stages for: a) chemical pulp is produced in an alkaline cooking process, b) the brown stock generated in the cooking is treated, said treatment comprising washing of the stock and preferably oxygen delignification and subsequent washing of the stock, c) a bleaching process for the brown stock, the bleaching sequence comprising at least one stage using chlorine dioxide and additionally at least one oxidizing bleaching stage and having at least two washing stages for treating the stock with liquids and for producing filtrates, and d) filtrates from stage c) are purified at an effluent treatment plant of the chemical pulp mill, which comprises at least biological treatment, for obtaining purified effluent. The method further includes a stage e), where the purified effluent with a color of 200 mg/l (Pt color) or more and a COD value of over 150 mg/l is used as pulp treatment liquid in stage c).
摘要翻译：一种在化学纸浆厂处理和利用液体流的方法，包括以下步骤：a）在碱性烹饪过程中产生化学纸浆，b）处理在烹饪中产生的棕色原料，所述处理包括洗涤原料，优选氧脱木素和随后洗涤原料，c）棕色原料的漂白方法，漂白顺序包括使用二氧化氯的至少一个阶段，另外至少一个氧化漂白阶段，并且具有至少两个洗涤阶段用于处理该原料与液体和用于生产滤液，以及d）来自阶段c）的滤液在化学浆粕的流出物处理厂纯化，其至少包括生物处理，用于获得纯化的流出物。该方法还包括阶段e），其中在步骤c）中使用颜色为200mg / l（Pt颜色）或更高，COD值超过150mg / l的净化流出物作为纸浆处理液。

7. 发明申请

US20120279669A1 METHOD OF TREATING LIQUID FLOWS AT A CHEMICAL PULP MILL 有权
标题翻译：在化学粉末处理液体流动的方法
公开(公告)号：US20120279669A1
公开(公告)日：2012-11-08
申请号：US13512220
申请日：2010-11-22
申请人： Janne Vehmaa , Olavi Pikka , Pekka Tervola
发明人： Janne Vehmaa , Olavi Pikka , Pekka Tervola
IPC分类号： D21C9/14 , D21C7/00
CPC分类号： D21C11/00 , D21C3/02 , D21C9/02 , D21C9/083 , D21C9/1057 , D21C9/144
摘要： A method of treating and utilizing liquid flows at a chemical pulp mill including stages for: a) chemical pulp is produced in an alkaline cooking process, b) the brown stock generated in the cooking is treated, said treatment comprising washing of the stock and preferably oxygen delignification and subsequent washing of the stock, c) a bleaching process for the brown stock, the bleaching sequence comprising at least one stage using chlorine dioxide and additionally at least one oxidizing bleaching stage and having at least two washing stages for treating the stock with liquids and for producing filtrates, and d) filtrates from stage c) are purified at an effluent treatment plant of the chemical pulp mill, which comprises at least biological treatment, for obtaining purified effluent. The method further includes a stage e), where the purified effluent with a color of 200 mg/l (Pt color) or more and a COD value of over 150 mg/l is used as pulp treatment liquid in stage c).
摘要翻译：一种在化学纸浆厂处理和利用液体流的方法，包括以下步骤：a）在碱性烹饪过程中产生化学纸浆，b）处理在烹饪中产生的棕色原料，所述处理包括洗涤原料，优选氧脱木素和随后洗涤原料，c）棕色原料的漂白方法，漂白顺序包括使用二氧化氯的至少一个阶段，另外至少一个氧化漂白阶段，并且具有至少两个洗涤阶段用于处理该原料与液体和用于生产滤液，以及d）来自阶段c）的滤液在化学浆粕的流出物处理厂纯化，其至少包括生物处理，用于获得纯化的流出物。该方法还包括阶段e），其中在步骤c）中使用颜色为200mg / l（Pt颜色）或更高，COD值超过150mg / l的净化流出物作为纸浆处理液。

8. 发明申请

US20100224334A1 METHOD FOR TREATING LIQUID FLOWS AT A CHEMICAL PULP MILL 有权
标题翻译：用于处理化学浆料中的液体流动的方法
公开(公告)号：US20100224334A1
公开(公告)日：2010-09-09
申请号：US12664719
申请日：2008-06-12
申请人： Janne Vehmaa , Olavi Pikka , Pekka Tervola
发明人： Janne Vehmaa , Olavi Pikka , Pekka Tervola
IPC分类号： D21C11/00
CPC分类号： D21C3/02 , D21C9/02 , D21C9/14
摘要： A method for treating liquid flows at a chemical pulp mill including at least an alkaline cooking process for producing pulp, treatment of brown stock generated in the cooking, a bleaching plant using ECF-bleaching, in which chloride-containing effluents are formed, an effluent purification plant for treating bleaching plant effluents and other effluents generated at the mill. At least a portion of the effluents is returned after the purification to the pulp production line as source of process water. More than one treatment line is arranged at the effluent purification plant for the mill effluents and effluents with different chemical compositions are purified in separate treatment lines so that the quality and amount of purified water from each treatment line is suitable for use in a stage or stages of the production process, whereto purified effluent is returned.
摘要翻译：一种在化学纸浆厂处理液体流动的方法，其至少包括用于生产纸浆的碱性烹饪方法，处理在烹饪中产生的棕色原料，使用ECF漂白的漂白设备，其中形成含氯化物的流出物，流出物净化设备用于处理漂白厂废水和其他在工厂生产的废水。净化后至少一部分废水作为工艺用水来源返回到纸浆生产线。在污水净化设备处设置多于一个处理管线，用于不同化学成分的废水排出物，并在不同的处理管线中纯化出来，以便来自每个处理管线的净化水的质量和数量适用于一个或多个阶段的生产过程，在那里返回纯化的流出物。

9. 发明授权

US08632657B2 Method for treating liquid flows at a chemical pulp mill 有权
标题翻译：在化学纸浆厂处理液体流动的方法
公开(公告)号：US08632657B2
公开(公告)日：2014-01-21
申请号：US12664719
申请日：2008-06-12
申请人： Janne Vehmaa , Olavi Pikka , Pekka Tervola
发明人： Janne Vehmaa , Olavi Pikka , Pekka Tervola
IPC分类号： D21C11/00
CPC分类号： D21C3/02 , D21C9/02 , D21C9/14
摘要： A method for treating liquid flows at a chemical pulp mill including at least an alkaline cooking process for producing pulp, treatment of brown stock generated in the cooking, a bleaching plant using ECF-bleaching, in which chloride-containing effluents are formed, an effluent purification plant for treating bleaching plant effluents and other effluents generated at the mill. At least a portion of the effluents is returned after the purification to the pulp production line as source of process water. More than one treatment line is arranged at the effluent purification plant for the mill effluents and effluents with different chemical compositions are purified in separate treatment lines so that the quality and amount of purified water from each treatment line is suitable for use in a stage or stages of the production process, whereto purified effluent is returned.
摘要翻译：一种在化学纸浆厂处理液体流动的方法，其至少包括用于生产纸浆的碱性烹饪方法，处理在烹饪中产生的棕色原料，使用ECF漂白的漂白设备，其中形成含氯化物的流出物，流出物净化设备用于处理漂白厂废水和其他在工厂生产的废水。净化后至少一部分废水作为工艺用水来源返回到纸浆生产线。在污水净化设备处设置多于一个处理管线，用于不同化学成分的废水排出物，并在不同的处理管线中纯化出来，以便来自每个处理管线的净化水的质量和数量适用于一个或多个阶段的生产过程，在那里返回纯化的流出物。

10. 发明授权

US08632655B2 Method in connection with the washing of pulp at a chemical pulp mill 有权
标题翻译：关于在化学纸浆厂洗浆的方法
公开(公告)号：US08632655B2
公开(公告)日：2014-01-21
申请号：US12664425
申请日：2008-06-12
申请人： Janne Vehmaa , Olavi Pikka , Pekka Tervola
发明人： Janne Vehmaa , Olavi Pikka , Pekka Tervola
IPC分类号： D21C11/00
CPC分类号： D21C11/0028 , D21C3/02 , D21C9/02 , D21C9/14 , D21C9/147 , D21C9/153 , D21C9/166 , D21C9/18
摘要： A method in connection with washing of pulp at a chemical pulp mill including at least an alkaline cooking process utilizing cooking liquor for producing pulp, brown stock treatment with essentially closed liquid cycles, in which the last washing device is a washing device based on pressing of pulp, a press or a washing press, a pulp bleaching plant using ECF-bleaching, wherein chloride-containing effluents are formed, a chemical recovery plant and effluent purification. The liquid flows generated at a chemical pulp mill are efficiently circulated without disturbing the main process and minimizing the emissions from the mill. Purified effluent in the amount of at least 1 m3/adt pulp is introduced into the dilution after the press or washing press, whereby the effluent is passed from the dilution into the first process stage of the bleaching.
摘要翻译：关于在化学纸浆厂洗涤纸浆的方法，其至少包括利用用于生产纸浆的蒸煮液的碱性烹饪方法，具有基本上封闭的液体循环的棕色原料处理，其中最后的洗涤装置是基于压榨的洗涤装置纸浆，压榨机或洗衣机，使用ECF漂白的纸浆漂白设备，其中形成含氯化物的流出物，化学回收设备和废水净化。在化学纸浆厂产生的液体流动被有效地循环，而不会干扰主要过程并使得磨机的排放最小化。将至少1m 3 / adt纸浆的纯化流出物在压榨或洗涤压榨机之后引入稀释液中，由此将流出物从稀释液通入漂白的第一个处理阶段。

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