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21.发明授权公开(公告)号：US08647473B2
公开(公告)日：2014-02-11
申请号：US13979851
申请日：2011-01-25
申请人： Krister Olsson
发明人： Krister Olsson
IPC分类号： D21C7/00
摘要： The continuous digester is for producing pulp from comminuted cellulosic material. The digester has a cone diverter on a bottom scraper arranged in the bottom of the digester for assisting in out feed of pulp produced. The cone diverter of the bottom scraper has an upper inclined surface of the cone diverter with an inclination angle in the range 30±10 degrees in relation to the vertical. In order to improve washing performance in the bottom of the digester, especially for overloaded digesters, the upper inclined surface is equipped with draining apertures in fluid communication with a liquid receiving chamber inside the cone diverter. The liquid receiving chamber is connected via a drainage channel to the exterior of the vessel.
摘要翻译： 连续蒸煮器用于从粉碎的纤维素材料生产纸浆。 蒸煮器在底部刮板上有一个锥形分流器，它设置在蒸煮器的底部，用于辅助生产纸浆的进料。 底部刮刀的锥形分流器具有锥形分流器的上倾斜表面，其倾斜角度相对于垂直方向为30±10度。 为了提高消化器底部的洗涤性能，特别是对于超重的消化器，上倾斜面配备有与锥形转向器内部的液体接收室流体连通的排放孔。 液体接收室经由排水通道连接到容器的外部。
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22.发明申请Apparatus For Washing And Dewatering Pulp, A System For Controlling Such An Apparatus, And A Method For Processing Pulp In Such An Apparatus 有权用于洗涤和脱水纸浆的设备，用于控制这种设备的系统以及在这种设备中处理纸浆的方法公开(公告)号：US20100276094A1
公开(公告)日：2010-11-04
申请号：US12747648
申请日：2008-12-11
摘要： Methods for processing pulp in an apparatus for washing and dewatering pulp and a system for controlling this apparatus are provided. The apparatus includes a pair of rotatable press rolls installed in vats and including a press nip therebetween, an inlet for feeding the pulp to the press nip, with one of the press rolls being movable in relation to the other and in which the processing of the pulp is determined by the number of variable operating parameters. The method includes utilizing the distance between the press rolls as a variable operating parameter, setting a desired value for a specific control parameter, measuring the specific control parameter, and adjusting at least two of the variable operating parameters during operation to maintain the difference between the desired value and the measured value of the specific control parameter below a predetermined difference. Systems for controlling this apparatus are also disclosed.
摘要翻译： 提供了一种用于在用于洗涤和脱水纸浆的设备中处理纸浆的方法和用于控制该设备的系统。 该装置包括一对安装在大桶中的可旋转的压榨辊并且包括其间的压榨压区，用于将纸浆输送到压榨压区的入口，其中一个压榨辊相对于另一个可移动，并且其中 纸浆由可变操作参数的数量决定。 该方法包括利用压辊之间的距离作为可变操作参数，为特定控制参数设置期望值，测量特定控制参数，以及在操作期间调整至少两个可变操作参数以维持 期望值和特定控制参数的测量值低于预定差值。 还公开了用于控制该装置的系统。
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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
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。
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24.发明申请PROCESS FOR ADJUSTING THE PH OF A CELLULOSIC PULP, PRODUCTION OF PULP OR PAPER FROM CELLULOSIC PULP AND USE OF (BI)CARBONATE REMOVAL FOR REDUCING THE CONSUMPTION OF ACID 审中-公开用于调节细胞浆的PH，从细胞浆生产纸浆或纸的方法和用于（BI）碳酸盐去除以减少酸的消耗的方法公开(公告)号：US20100175839A1
公开(公告)日：2010-07-15
申请号：US12683060
申请日：2010-01-06
申请人： Anna TIGERSTROM
发明人： Anna TIGERSTROM
摘要： A process for adjusting the pH of a cellulosic pulp in a pulp and/or paper mill, and to the production of pulp, paper or board from so treated cellulosic pulp is disclosed. In the process, the pH of an alkaline cellulosic pulp is adjusted at least twice with carbon dioxide before a neutral treatment and at least once with a strong acid before a subsequent acidic treatment. Between the first and the second carbon dioxide induced pH adjustment there is provided a (bi)carbonate removal step, which reduces the buffering capacity of the pulp. Also provided for is the use of (bi)carbonate removal for reducing the consumption of acid in the treatment of a cellulosic pulp.
摘要翻译： 公开了一种用于调节纸浆和/或造纸厂中的纤维素纸浆的pH以及从经处理的纤维素纸浆生产纸浆，纸或纸板的方法。 在此过程中，碱性纤维素纸浆的pH在中性处理之前用二氧化碳调节至少两次，并在随后的酸处理之前用强酸调节至少一次。 在第一和第二二氧化碳诱导的pH调节之间，提供了（二）碳酸盐去除步骤，其降低了纸浆的缓冲能力。 还提供了使用（bi）碳酸盐去除以减少在处理纤维素浆中的酸的消耗。
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公开(公告)号：US20060113048A1
公开(公告)日：2006-06-01
申请号：US10541435
申请日：2003-12-09
IPC分类号： D21C3/22
CPC分类号： D21C9/02 , D21C9/10 , D21C9/1057
摘要： The method is for bleaching cellulose pulp in a bleaching line that has at least two bleaching steps including a first and second bleaching steps. The bleaching steps have wash apparatuses for the pulp arranged after the first and second bleaching steps. The dilution liquor is led in counter-currently to the pulp flow through the bleaching steps in the bleach line. A substantial portion of the wash liquor is supplied by means of a main conduit so that each of the wash apparatuses is independently supplied by means of first branch conduits connected to the main conduit. Each of the wash apparatuses independently bleeds out wash filtrate by means of second branch conduits connected to the main conduit. The main conduit has an outlet end which bleeds out at least some of the wash filtrate from the wash apparatus.
摘要翻译： 该方法是在漂白线中漂白纤维素纸浆，该漂白线具有包括第一和第二漂白步骤的至少两个漂白步骤。 漂白步骤具有在第一和第二漂白步骤之后布置的纸浆的洗涤装置。 稀释液通过漂白线中的漂白步骤逆流引导到纸浆流。 洗涤液的大部分通过主导管供应，使得每个洗涤装置通过连接到主管道的第一分支导管独立地供应。 每个洗涤装置通过连接到主管道的第二分支导管独立地排出洗涤滤液。 主导管具有出口端，其从洗涤装置中排出至少一些洗涤滤液。
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公开(公告)号：US20060090866A1
公开(公告)日：2006-05-04
申请号：US10542265
申请日：2003-12-09
IPC分类号： D21C9/02
CPC分类号： D21C9/02 , D21C9/10 , D21C9/1057
摘要： The method is for bleaching cellulose pulp in a bleaching line that has at least two bleaching steps including a first (D1) and a second (D2) bleaching step. The bleaching steps have wash apparatuses (W4, W5) for the pulp arranged after the first and the second bleaching step. Wash liquor and where appropriate dilution liquor is led in principle in counter-current to the pulp flow through the bleaching steps in the bleach line (W1-D0-W2-EO/EOP-W3-D1-W4-D2-W5). At least one of wash liquor and dilution liquor is taken to the subsequent wash (W5) of the second bleaching step (D2) and at least a part of the wash filtrate from the subsequent wash of the second bleaching step is led to a second branch position (A2) in the main conduit.
摘要翻译： 该方法是漂白线中漂白纤维素纸浆，该漂白线具有至少两个漂白步骤，包括第一（D 1 H 1）和（D 2 N 2）漂白步骤。 漂白步骤具有在第一和第二漂白步骤之后排列的纸浆的洗涤装置（W 4，W 5 N）。 洗涤液并且在适当的稀释液原理上通过漂白线中的漂白步骤逆流引导到纸浆流中（W 1→2→0 < 3 2 -EO / EOP-W 3 -D 1 > -W 5）。 洗涤液和稀释液中的至少一种被带到第二漂白步骤（D 2 2 N）的随后的洗涤（W 5 S 5）中，并且洗涤液的至少一部分 来自第二漂白步骤的随后洗涤的滤液被引导到主导管中的第二分支位置（A 2）。
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公开(公告)号：US20060090865A1
公开(公告)日：2006-05-04
申请号：US11287065
申请日：2005-11-25
IPC分类号： D21C7/06
CPC分类号： D21C9/1026 , D21C9/02 , D21C9/10 , D21C9/1057 , D21C9/144
摘要： The method is for bleaching cellulose pulp in a bleach line that has at least two bleaching steps. The filtrate distribution is led up through the bleaching line counter-currently to the flow of cellulose pulp established in the bleaching line. A single joint main conduit is used for the bleaching steps. Wash filtrates obtained from the wash steps, used after or before the bleaching step, are led in conduits to branch locations on the main conduit that are positioned downstream of the branch location for drawing off of wash and/or dilution liquor for the wash step in question. All branch points in the joint main conduit are in fluid communication with one another along the main conduit.
摘要翻译： 该方法是漂白线中漂白纤维素纸浆，该漂白线具有至少两个漂白步骤。 滤液分配通过与漂白线中建立的纤维素浆液流相反的漂白线。 用于漂白步骤的单一接头主导管。 从漂洗步骤之后或之前使用的洗涤步骤获得的洗涤滤液被导入管道中，位于主管道上的位于分支位置下游的分支位置，用于抽出用于洗涤步骤的洗涤和/或稀释液 题。 联合主导管中的所有分支点沿主管道彼此流体连通。
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公开(公告)号：US20060010669A1
公开(公告)日：2006-01-19
申请号：US11179301
申请日：2005-07-13
申请人： Paul Gillette , Charles Hall
发明人： Paul Gillette , Charles Hall
IPC分类号： C08B1/00
摘要： An improved process for the purification of raw cotton linters includes the cutting of a first, second, third or mill run cut raw cotton linters to a particle size that passes through a 2,500 micrometer screen and then mechanically separating the linters into clean and unclean fractions. The clean fraction contains purified cut raw cotton linters and the unclean fraction contains the impurities.
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公开(公告)号：US06946072B2
公开(公告)日：2005-09-20
申请号：US10399972
申请日：2001-10-23
申请人： Rolf Ekholm , Peter Wigarthsson
发明人： Rolf Ekholm , Peter Wigarthsson
CPC分类号： D21C9/02
摘要： A method for washing a fibre suspension with washing liquid, in which, in accordance with the invention, the fibre suspension is introduced into an annular treatment channel (24) that has an inlet end (72) and an outlet end (73) and is concentric with an axis of rotation (5) to form an inner annular layer (74), washing liquid simultaneously being introduced into the treatment channel form an outer layer (75), which surrounds the inner annular layer. The fibre suspension and washing liquid are caused to rotate in the treatment channel whilst moving from said inlet end to said outlet end, fibres in the fibre suspension being caused to move into the outer layer of washing liquid, under the influence of the centripetal force, so that an accept (29), the liquid phase of which completely or mostly consists of washing liquid, is discharged at the outlet end of the treatment channel.
摘要翻译： 一种用洗涤液洗涤纤维悬浮液的方法，其中根据本发明，将纤维悬浮液引入具有入口端（72）和出口端（73）的环形处理通道（24）中，并且是 与旋转轴线（5）同心以形成内部环形层（74），同时被引入处理通道的洗涤液体形成围绕内部环形层的外层（75）。 纤维悬浮液和洗涤液体在处理通道中旋转，同时从所述入口端移动到所述出口端，纤维悬浮液中的纤维在向心力的影响下被引入洗涤液体的外层， 使得其完全或大部分由洗涤液组成的液相在处理通道的出口端排出。
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公开(公告)号：US20050061460A1
公开(公告)日：2005-03-24
申请号：US10939616
申请日：2004-09-13
申请人： Martin Ragnar
发明人： Martin Ragnar
摘要： The invention relates to a method and arrangement for alkaline oxygen delignification of cellulose pulp. By adding alkali in the final phase of the oxygen delignification one can ensure that an optimal predetermined end-pH is obtained. This provides advantages in the subsequent bleaching since the bleachability is substantially improved in the form of reduced need for bleaching chemicals.
摘要翻译： 本发明涉及一种纤维素纸浆碱性氧脱木质素的方法和装置。 通过在氧脱木素的最后阶段加入碱可以确保获得最佳的预定的最终pH。 这在随后的漂白中提供了优点，因为可漂白性基本上改善了对漂白化学品的需求减少的形式。
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