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公开(公告)号：US06699357B2
公开(公告)日：2004-03-02
申请号：US09967351
申请日：2001-09-28
IPC分类号： D21C324
摘要： The invention relates to a process for continuous cooking of wood chips at elevated pressure and temperature in a vertical digester (1) for production of chemically dissolved pulp. Fiber material and cooking liquor are introduced at the top of the digester and pulp is discharged from the bottom of the digester (1), via a line (8) in which the pulp is maintained at substantially the same pressure level, to a pressurized wash (7). More than 50% of the used cooking liquor (black liquor) which is extracted from the system in total is extracted from the wash filtrate of the pressurized wash. The pressurized wash is regulated so that a high temperature is maintained in the wash filtrate. The extraction is regulated so that a net co-current flow is established at the bottom of the digester.
摘要翻译： 本发明涉及在用于生产化学溶解的纸浆的立式蒸煮器（1）中在升高的压力和温度下连续烹饪木屑的方法。 在蒸煮器的顶部引入纤维材料和蒸煮液，并且通过将纸浆保持在基本相同的压力水平的管线（8）从蒸煮器（1）的底部排出浆料到加压洗涤 （7）。 从加压洗涤液的洗涤滤液中提取从系统中提取的超过50％的二手蒸煮液（黑液）。 加压洗涤被调节，使得洗涤滤液中保持高温。 调节萃取，使得在蒸煮器底部建立净并流。
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公开(公告)号：US06605180B2
公开(公告)日：2003-08-12
申请号：US09967346
申请日：2001-09-28
IPC分类号： D21C324
摘要： Fiber material and cooking liquor are introduced at the top of the digester and pulp is discharged from the bottom of the digester, via a line in which the pulp is maintained at substantially the same pressure level, to a pressurized wash. More than 50% of the used cooking liquor (black liquor) which is extracted from the system in total is extracted from the wash filtrate of the pressurized wash. At the same time a small portion of the wash filtrate is also to be recirculated to the bottom of the digester as dilution liquid. The pressurized wash is regulated so that a high temperature is maintained in the wash filtrate. The extraction is regulated so that a net co-current flow is established at the bottom of the digester.
摘要翻译： 在蒸煮器的顶部引入纤维材料和蒸煮液，并且将纸浆从消化器的底部通过将纸浆保持在基本相同的压力水平的管线排出至加压洗涤液。 从加压洗涤液的洗涤滤液中提取从系统中提取的超过50％的二手蒸煮液（黑液）。 同时洗涤滤液的一小部分也作为稀释液体再循环到消化器的底部。 调节加压洗涤液，使得洗涤滤液中保持高温。 调节萃取，使得在蒸煮器底部建立净并流。
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公开(公告)号：US6086717A
公开(公告)日：2000-07-11
申请号：US7510
申请日：1998-01-15
申请人： Vidar Snekkenes , Sven-Erik Olsson
发明人： Vidar Snekkenes , Sven-Erik Olsson
摘要： A new and improved way of continuously cooking fiber material, wherein temperatures and alkaline levels are controlled to be maintained within specific levels in different zones of the digesting process in order to optimize chemical consumption and heat-economy and at the same time achieve very good pulp properties. The digesting process includes a top separator that separates the transport liquid from the fiber material and permits the fiber material to be exposed to the cooking liquid.
摘要翻译： 一种连续烹饪纤维材料的新型改进方法，其中温度和碱度水平被控制在消化过程的不同区域内保持在特定水平内，以优化化学消耗和热经济性，同时实现非常好的纸浆 属性。 消化过程包括顶部分离器，其将运输液体与纤维材料分离并允许纤维材料暴露于烹饪液体。
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公开(公告)号：US20120012271A1
公开(公告)日：2012-01-19
申请号：US12986984
申请日：2011-01-07
IPC分类号： D21H23/20
CPC分类号： D21F1/74
摘要： The method and a device is for the dilution of dewatered cellulose pulp that maintains a consistency of 20-30% or greater. By shredding of the pulp to a finely divided dry-granulate, dilution to a homogeneous consistency in the medium consistency range can take place exclusively through hydrodynamic effects from the addition of dilution fluid. The dilution fluid is added to granulate at a position at which granulate is in free fall in a standpipe and above a level Liq.sub.LEV of diluted pulp in the standpipe. A number of nozzles are arranged around the periphery of the stand pipe, directed in towards the centre of the stand pipe, obliquely downwards in the direction of fall of the granulate. It is possible through this simplified procedure to avoid completely the conventional dilution screws, and this reduces the investment costs and operating costs, while at the same time unnecessary mechanical influence of the pulp fibres can be avoided.
摘要翻译： 该方法和装置用于稀释维持20-30％或更大稠度的脱水纤维素纸浆。 通过将纸浆切碎成细碎的干颗粒，在中等稠度范围内稀释至均匀的稠度可以通过添加稀释液体的流体动力学效应进行。 将稀释液加入到颗粒在立管中自由落体的位置并在竖管中的稀释纸浆的Liq.LEV之上。 多个喷嘴围绕立管的周边布置成朝着立管的中心朝向颗粒的坠落方向倾斜向下倾斜。 通过这种简化的程序，可以完全避免常规的稀释螺钉，这样可以降低投资成本和操作成本，同时可以避免纸浆纤维的不必要的机械影响。
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公开(公告)号：US07998310B2
公开(公告)日：2011-08-16
申请号：US11570901
申请日：2005-06-21
摘要： A method for the impregnation of untreated chips during the manufacture of chemical pulp. The untreated chips are fed without preceding steam treatment into an impregnation vessel that has an upper part with a first area (A1) and a lower part with a second area (A2) that is larger than the first area (A1) by a factor of at least √{square root over (2)}. The chips establish in the upper part a level of chips that is located at a level (h) above a level of fluid consisting of liquor. The chips after passage of the upper part pass through a transitional part, where an increase in area from the first area (A1) to the second area (A2) takes place, and it is here that the angle of repose of the chips is reduced.
摘要翻译： 在制造化学纸浆期间浸渍未处理的碎片的方法。 将未经处理的碎片在没有先前蒸汽处理的情况下进料到浸渍容器中，所述浸渍容器具有上部，其具有第一区域（A1）和具有大于第一区域（A1）的第二区域（A2））的第一区域（A1）的下部， 至少√{平方根超过（2）}。 芯片在上部建立位于高于由液体组成的液体水平以上的水平（h）的切屑水平。 上部通过后的碎屑通过过渡部分，其中发生从第一区域（A1）到第二区域（A2）的面积增加，并且在这里，芯片的休止角减小 。
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6.发明授权公开(公告)号：US06966970B2
公开(公告)日：2005-11-22
申请号：US10474223
申请日：2002-04-29
摘要： The invention relates to a method for supplying washing liquid to a digester (1) for cellulose pulp and a subsequent diffuser washing device (2a, 2b). A high, disturbance-free production capacity can be obtained by using a common feed pump (P1) which, via a main feed line (10), supplies both the diffuser washing device and the digester with washing liquid in parallel. The first pump (P1) establishes a pressure on the washing liquid which is in the interval 2–6 bar, and is preferably 4 bar, while the second pressure level, which is established by the diffuser pump device (P2a, P2b), is in the interval 6–12 bar, but is at least 2 bar higher than the first pressure level, and the third pressure level, which is established by the digester pump (P3), is in the interval 12–25 bar The system becomes self-regulating in the event of any operational disturbances in the flow of washing liquid and, if the pumps are appropriate, a countercurrent flow of washing liquid through the system is essentially maintained.
摘要翻译： 本发明涉及向用于纤维素纸浆的蒸煮器（1）和随后的扩散器洗涤装置（2a，2b）供应洗涤液的方法。 通过使用通过主进料管线（10）向扩散器洗涤装置和蒸煮器两者平行供应洗涤液体的公共进料泵（P 1）可以获得高的无干扰生产能力。 第一泵（P 1）在间隔2-6巴内建立洗涤液体的压力，优选为4巴，而由扩散泵装置（P 2a，P）建立的第二压力水平 2 b）在间隔6-12巴，但比第一压力水平高至少2巴，由消化泵（P 3）建立的第三压力水平处于间隔12- 25 bar在洗涤液流动有任何操作干扰的情况下，系统变得自动调节，如果泵适当，基本上保持通过系统的洗涤液逆流。
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7.发明授权公开(公告)号：US06332950B1
公开(公告)日：2001-12-25
申请号：US09446272
申请日：1999-12-17
IPC分类号： D21C714
摘要： A method in connection with the pretreatment of comminuted fibrous material intended for chemical cellulose pulp production. The fibrous material is fed through a low pressure system that has a gas phase part followed by a liquid phase part. The liquid phase part includes a low pressure circulation where a circulating liquid is withdrawn from the fibrous material and recirculated back to the fibrous material in an upstream position. The fibrous material is sluiced into a high pressure system that has a liquid phase transfer part operatively connected to a digester. A hot process liquid and/or the circulating liquid are evaporatively cooled by being allowed to flash within the low pressure system.
摘要翻译： 关于用于化学纤维素纸浆生产的粉碎纤维材料的预处理的方法。 纤维材料通过具有气相部分和液相部分的低压系统进料。 液相部分包括低压循环，其中循环液体从纤维材料中排出并在上游位置再循环回纤维材料。 将纤维材料冲洗成具有可操作地连接到蒸煮器的液相转移部分的高压系统。 热处理液体和/或循环液体通过在低压系统内被闪蒸而蒸发冷却。
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公开(公告)号：US07887671B2
公开(公告)日：2011-02-15
申请号：US10599092
申请日：2005-03-09
CPC分类号： D21F1/74
摘要： The method and a device is for the dilution of dewatered cellulose pulp that maintains a consistency of 20-30% or greater. By shredding of the pulp to a finely divided dry-granulate, dilution to a homogeneous consistency in the medium consistency range can take place exclusively through hydrodynamic effects from the addition of dilution fluid. The dilution fluid is added to granulate at a position at which granulate is in free fall in a standpipe and above a level LiqLEV of diluted pulp in the standpipe. A number of nozzles are arranged around the periphery of the stand pipe, directed in towards the centre of the stand pipe, obliquely downwards in the direction of fall of the granulate. It is possible through this simplified procedure to avoid completely the conventional dilution screws, and this reduces the investment costs and operating costs, while at the same time unnecessary mechanical influence of the pulp fibres can be avoided.
摘要翻译： 该方法和装置用于稀释维持20-30％或更大稠度的脱水纤维素纸浆。 通过将纸浆切碎成细碎的干颗粒，在中等稠度范围内稀释至均匀的稠度可以通过添加稀释液体的流体动力学效应进行。 将稀释液加入到颗粒在立管中自由落体的位置并在竖管中的稀释纸浆的LiqLEV之上。 多个喷嘴围绕立管的周边布置成朝着立管的中心朝向颗粒的坠落方向倾斜向下倾斜。 通过这种简化的程序，可以完全避免常规的稀释螺钉，这样可以降低投资成本和操作成本，同时可以避免纸浆纤维的不必要的机械影响。
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公开(公告)号：US20080277081A1
公开(公告)日：2008-11-13
申请号：US11570901
申请日：2005-06-21
摘要： A method and an arrangement for the impregnation of untreated chips during the manufacture of chemical pulp. The untreated chips are fed without preceding steam treatment into an impregnation vessel (10) that comprises an upper part (11) with a first area and a lower part (13) with a second area A2 that is larger than the first area A1 by a factor of at least r2. The chips establish in the upper part (11) a level (14) of chips that is located at a level (h) above a level (18) of fluid consisting of liquor. The chips after passage of the upper part (11) pass through a transitional part (12), where an increase in area from the first area (A1) to and it is here that the angle of repose of the chips is reduced.
摘要翻译： 在制造化学纸浆期间浸渍未处理的碎片的方法和装置。 将未经处理的碎片在没有进行蒸汽处理的情况下进料到浸渍容器（10）中，浸渍容器（10）包括具有第一区域和下部（13）的上部部分（11），第二区域A 2大于第一区域A 1 至少为r 2。 芯片在上部（11）中形成位于液体（18）上方的液面（18）上的液位（14）的液面（14）。 上部部分（11）通过后的碎片通过过渡部分（12），其中从第一区域（A 1）开始的面积增加，并且在这里减小了芯片的休止角。
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10.发明授权Method for the feed of cellulose chips during the continuous cooking of cellulose 有权在纤维素连续蒸煮期间纤维素片的进料方法公开(公告)号：US07422657B2
公开(公告)日：2008-09-09
申请号：US10504948
申请日：2003-03-12
CPC分类号： D21C7/06
摘要： The method is for feeding a chips-slurry from a low-pressure to a high-pressure system during the continuous cooking of chemical cellulose pulp. The feed takes place through a sluice feeder 53′ between these systems. The sluice feeder is provided with a rotor with through-pockets 1, 2 that are alternately connected with the low-or the high-pressure system. A recirculation line 54′, that has a high-pressure pump 57′, extends from the first outlet 53b′ of the sluice feeder to the second inlet 53c′ of the sluice feeder for transporting the fluid that has been expelled from the pockets of the sluice feeder when these are located in their first position. The fluid expels the chips mixture from the pockets of the sluice feeder in their second position and is essentially exclusively constituted by the fluid that has been expelled from the pockets in their first position.
摘要翻译： 该方法是在化学纤维素纸浆的连续蒸煮期间将碎屑浆料从低压供给到高压系统。 进料通过这些系统之间的闸门进料器53'进行。 闸门供给器设置有与低压或高压系统交替连接的通孔1,2的转子。 具有高压泵57'的再循环管线54'从闸门供给器的第一出口53b'延伸到闸门供给器的第二入口53c'，用于输送已经从口袋排出的流体 当它们位于其第一位置时。 流体将碎屑混合物从闸门进料器的凹穴排放到其第二位置，并且基本上由在其第一位置从口袋排出的流体完全构成。
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