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公开(公告)号：US06436233B1
公开(公告)日：2002-08-20
申请号：US09573046
申请日：2000-05-18
IPC分类号： D21C110
摘要： A feed system for a cellulose pulp treating vessel (such as a continuous digester) is not limited by the required L/W ratio of the pump feeding a wood chip slurry to a high pressure transfer device, the feed system may be kept at a low temperature to minimize flashing of liquid into steam, and a return conduit from the treatment vessel to the transfer device high pressure inlet may be eliminated. Some of the liquid is removed from the slurry just before the low pressure inlet to the transfer device, and/or just after the high pressure outlet, to reduce the L/W ratio of the slurry by at least 0.25, e.g. from 3.0:1 to 2.25:1 just before the low pressure inlet, and from 7.0:1 to 5.0:1 substantially immediately after the high pressure outlet.
摘要翻译： 用于纤维素纸浆处理容器（例如连续蒸煮器）的进料系统不受供应木屑浆料与高压转移装置的泵的所需L / W比的限制，进料系统可以保持在低 温度以最小化液体进入蒸汽的闪烁，并且可以消除从处理容器到转印装置高压入口的返回管道。 一些液体刚刚在转移装置的低压入口之前和/或刚刚在高压出口之后从浆料中除去，以将浆料的L / W比降低至少0.25，例如。 在低压入口之前的3.0:1至2.25:1，并且在高压出口之后基本上立即从7.0:1至5.0:1。
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42.发明授权公开(公告)号：US06368453B1
公开(公告)日：2002-04-09
申请号：US09520761
申请日：2000-03-07
IPC分类号： D21C706
CPC分类号： D21C7/06
摘要： In the feeding of a slurry of comminuted cellulosic fibrous material to a digester (continuous or batch) in the production of chemical pulp, one of the tanks used in the feed system (which preferably includes a high pressure feeder) may be eliminated without consequent loss of its function by providing a single tank with the combined functions of controlling the level of liquid in a slurrying conduit which supplies slurry to a slurry pump, and storing and substantially continuously supplying liquid to a make-up liquid pump connected to the digester. The single tank preferably surrounds the slurrying conduit and is substantially concentric, and in liquid communication, with it. A gap of 3-48 inches may be provided between the bottom of the conduit and a connection to the slurry pump. A screen or strainer may be provided in the gap, which is substantially surrounded by the tank. The return system from the low pressure outlet of the high pressure feeder to the slurrying device (like the conduit and tank surrounding it, or a conventional clip tube) may be devoid of one or more of an in-line drainer, level tank, centrifugal separator, and surge tank.
摘要翻译： 在生产化学纸浆时将粉碎的纤维素纤维材料的浆料喂入蒸煮器（连续或间歇）中，可以消除在进料系统（优选包括高压进料器）中使用的一个罐，而不会随之而来的损失 其功能是提供一个单一的罐，其具有控制在淤浆泵中提供浆料的浆料管道中的液体液面的组合功能，并且储存并基本上连续地向连接到蒸煮器的补充液体泵供应液体。 单个罐优选地围绕着浆化管道并且与其基本上同心并且与液体连通。 可以在管道的底部和与浆料泵的连接之间提供3-48英寸的间隙。 可以在间隙中设置屏幕或过滤器，该间隙基本上被箱体包围。 从高压给料器的低压出口到制浆装置（如围绕它的导管和罐或常规的夹管）的返回系统可以没有一个或多个在线排水器，液位罐，离心机 分离器和缓冲罐。
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公开(公告)号：US6086712A
公开(公告)日：2000-07-11
申请号：US175467
申请日：1998-10-20
申请人： Bruno S. Marcoccia , J. Robert Prough , Richard O. Laakso , Joseph R. Phillips , Rolf C. Ryham , Jan T. Richardsen , R. Fred Chasse
发明人： Bruno S. Marcoccia , J. Robert Prough , Richard O. Laakso , Joseph R. Phillips , Rolf C. Ryham , Jan T. Richardsen , R. Fred Chasse
IPC分类号： C08B1/00 , C08B15/00 , D21C3/02 , D21C3/22 , D21C3/24 , D21C7/00 , D21C7/12 , D21C7/14 , D21C9/02 , D21C11/00 , D21C11/02 , D21C11/04 , D21G7/00
CPC分类号： D21C3/02 , D21C11/0021 , D21C11/04 , D21C3/22 , D21C3/224 , D21C3/24 , D21C7/00 , D21C7/12 , D21C7/14 , D21C9/02 , D21G7/00
摘要： Kraft pulp of increased strength and bleachability may be produced with decreased consumption of effective alkali, and at a lower H factor, by keeping the dissolved organic material (DOM) concentration low substantially through the entire kraft cook, including by extracting high DOM liquid from at least one part of a continuous digester and replacing it with much lower level DOM liquid. Existing pulp mills having two-vessel hydraulic, one-vessel hydraulic, or other systems may be retrofit to provide for extractions and additions of low DOM dilution liquor (including substantially DOM-free white liquor). Also, commercial size batch digesters (8 tons per day of pulp or more) can be operated with low DOM liquor to produce increased strength pulp. Using dilution with low DOM liquor also results in reduced H factor and effective alkali consumption, and increased bleachability.
摘要翻译： 通过将溶解的有机物质（DOM）浓度基本上保持在整个硫酸盐蒸煮中，包括通过从中提取高DOM液体，可以降低有效碱的消耗，并且在较低的H因子下生产具有增加的强度和漂白性的牛皮纸浆 连续消化器的至少一部分，并用更低级别的DOM液体代替。 可以改造具有双容器液压，单容器液压或其它系统的现有纸浆厂，以提供低DOM稀释液（包括基本上不含DOM的白液）的提取和添加。 此外，商业尺寸的批量蒸煮器（每天8吨纸浆或更多）可以用低DOM液体操作以产生增强的纸浆。 使用低DOM酒稀释还可以降低H因子和有效的碱消耗，并增加漂白性。
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公开(公告)号：US5985096A
公开(公告)日：1999-11-16
申请号：US936047
申请日：1997-09-23
申请人： Bruno S. Marcoccia , J. Robert Prough , Jerry R. Johanson , C. Bertil Stromberg , Joseph R. Phillips
发明人： Bruno S. Marcoccia , J. Robert Prough , Jerry R. Johanson , C. Bertil Stromberg , Joseph R. Phillips
IPC分类号： D21C7/00
CPC分类号： D21C7/00
摘要： In a vertical digester for producing chemical pulp, or other vessel for treating a slurry of comminuted fibrous cellulosic material, the cost of manufacturing the shell is significantly reduced by eliminating the external step increases in the digester shell. The digester shell has a substantially constant internal diameter from just below the inlet to just above the outlet, screen assemblies being provided by an internal transition (e.g. conical) having an angle of convergence of less than 40.degree. (e.g. about 10-25.degree.) above each screen assembly so that the slurry flows through the transition without bridging or hang-up, and a step increase, or other increase, in diameter back to the first diameter after the screen assembly.
摘要翻译： 在用于生产化学纸浆的立式蒸煮器或用于处理粉碎的纤维状纤维素材料的浆料的其它容器中，通过消除蒸煮器壳体的外部步骤增加，制造壳体的成本显着降低。 蒸煮器壳体具有从入口正下方到出口正上方的基本上恒定的内径，筛网组件由倾斜角小于40°（例如约10-25°）的内部过渡（例如圆锥形）提供， 在每个筛网组件之上，使得浆料流过过渡而不会桥接或挂起，并且在筛网组装之后，直径逐渐增加或者增加到第一直径。
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公开(公告)号：US5968314A
公开(公告)日：1999-10-19
申请号：US954902
申请日：1997-10-21
申请人： J. Robert Prough
发明人： J. Robert Prough
摘要： A chip feeding system for a continuous digester provides for a greater rate of delivery of chip slurry to the digester, and is much less expensive than conventional chip feeding systems, typically being only 40-50% of the height of the conventional system. An atmospheric vessel may be connected at the bottom thereof to a slurry pump which pumps the chip slurry to a conventional high pressure feeder. A recirculation loop for returning liquid from the feeder to the vessel may include an atmospheric level tank, and a liquid cooler. The vessel may have one dimensional convergence and side relief, and instead of a conventional cylindrical chip bin, the chip bin may have a hopper having two transitions with one dimensional convergence and side relief. The chip bin also may be at atmospheric pressure so that no low pressure feeder between the bin and vessel is necessary. Alternatively, the vessel may be pressurized while an atmospheric-pressure level tank is provided, the high pressure feeder being mounted directly at ground level.
摘要翻译： 用于连续蒸煮器的切屑进料系统提供了更高的浆料向蒸煮器的输送速率，并且比常规的切屑进料系统便宜得多，通常只有常规系统的40-50％。 大气容器可以在其底部连接到浆料泵，浆料泵将碎屑浆料泵送到常规的高压进料器。 用于将液体从进料器返回到容器的再循环回路可以包括大气液位罐和液体冷却器。 容器可以具有一维会聚和侧面浮雕，并且代替常规的圆柱形切屑仓，切屑仓可以具有具有一维收敛和侧面浮雕的两个转变的料斗。 切屑箱也可能处于大气压力，因此在料斗和容器之间不需要低压进料器。 或者，可以在设置大气压水平的容器的同时对容器进行加压，高压给料器直接安装在地面上。
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公开(公告)号：US5700355A
公开(公告)日：1997-12-23
申请号：US547159
申请日：1995-10-24
申请人： J. Robert Prough
发明人： J. Robert Prough
摘要： A chip feeding system for a continuous digester provides for a greater rate of delivery of chip slurry to the digester, and is much less expensive than conventional chip feeding systems, typically being only 40-50% of the height of the conventional system. An atmospheric vessel may be connected at the bottom thereof to a slurry pump which pumps the chip slurry to a conventional high pressure feeder. A recirculation loop for returning liquid from the feeder to the vessel may include an atmospheric level tank, and a liquid cooler. The vessel may have one dimensional convergence and side relief, and instead of a conventional cylindrical chip bin, the chip bin may have a hopper having two transitions with one dimensional convergence and side relief. The chip bin also may be at atmospheric pressure so that no low pressure feeder between the bin and vessel is necessary. Alternatively, the vessel may be pressurized while an atmospheric-pressure level tank is provided, the high pressure feeder being mounted directly at ground level.
摘要翻译： 用于连续蒸煮器的切屑进料系统提供了更高的浆料向蒸煮器的输送速率，并且比常规的切屑进料系统便宜得多，通常只有常规系统的40-50％。 大气容器可以在其底部连接到浆料泵，浆料泵将碎屑浆料泵送到常规的高压进料器。 用于将液体从进料器返回到容器的再循环回路可以包括大气液位罐和液体冷却器。 容器可以具有一维会聚和侧面浮雕，并且代替常规的圆柱形切屑仓，切屑仓可以具有具有一维收敛和侧面浮雕的两个转变的料斗。 切屑箱也可能处于大气压力，因此在料斗和容器之间不需要低压进料器。 或者，可以在设置大气压水平的容器的同时对容器进行加压，高压给料器直接安装在地面上。
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47.依法登记的发明
公开(公告)号：USH1681H
公开(公告)日：1997-10-07
申请号：US529411
申请日：1995-09-18
摘要： A continuous digester discharges pulp without mechanically engaging the pulp, by using one or more discharge transitions with one dimensional convergence and side relief. The transitions may be mounted within a pre-existing digester shell (after removal of the discharge rotor), and supported by a number of braces and/or a skirt shaped like a truncated cone. The operation of a digester, or other continuous vessel, may be controlled by automatically sensing the level of comminuted cellulosic fibrous material in the vessel and automatically controlling the introduction of dilution liquid into the vessel to discharge the material from the vessel in response to the sensing.
摘要翻译： 连续的蒸煮器通过使用具有一维会聚和侧面浮雕的一个或多个排放过渡来排出纸浆而不与纸浆机械接合。 过渡件可以安装在预先存在的蒸煮器外壳（在移除排放转子之后），并且由多个支柱和/或形状像截头锥体的裙部支撑。 蒸煮器或其他连续容器的操作可以通过自动感测容器中粉碎的纤维素纤维材料的水平来控制，并且自动控制将稀释液引入容器中以响应感测从容器中排出材料 。
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公开(公告)号：US5620562A
公开(公告)日：1997-04-15
申请号：US625709
申请日：1996-04-03
申请人： Bruno S. Marcoccia , J. Robert Prough , Richard O. Laakso , Joseph R. Phillips , Rolf C. Ryham , Jan T. Richardsen , R. Fred Chasse
发明人： Bruno S. Marcoccia , J. Robert Prough , Richard O. Laakso , Joseph R. Phillips , Rolf C. Ryham , Jan T. Richardsen , R. Fred Chasse
IPC分类号： C08B1/00 , C08B15/00 , D21C3/02 , D21C3/22 , D21C3/24 , D21C7/00 , D21C7/12 , D21C7/14 , D21C9/02 , D21C11/00 , D21C11/02 , D21C11/04 , D21G7/00
CPC分类号： D21C3/02 , D21C11/0021 , D21C11/04 , D21C3/22 , D21C3/224 , D21C3/24 , D21C7/00 , D21C7/12 , D21C7/14 , D21C9/02 , D21G7/00
摘要： Kraft pulp of increased strength and bleachability may be produced with decreased consumption of effective alkali, and at a lower H factor, by keeping the dissolved organic material (DOM) concentration low substantially through the entire kraft cook, including by extracting high DOM liquid from at least one part of a continuous digester and replacing it with much lower level DOM liquid. Existing pulp mills having two-vessel hydraulic, one-vessel hydraulic, or other systems may be retrofit to provide for extractions and additions of low DOM dilution liquor (including substantially DOM-free white liquor). Also, commercial size batch digesters (8 tons per day of pulp or more) can be operated with low DOM liquor to produce increased strength pulp. Using dilution with low DOM liquor also results in reduced H factor and effective alkali consumption, and increased bleachability.
摘要翻译： 通过将溶解的有机物质（DOM）浓度基本上保持在整个硫酸盐蒸煮中，包括通过从中提取高DOM液体，可以降低有效碱的消耗，并且在较低的H因子下生产具有增加的强度和漂白性的牛皮纸浆 连续消化器的至少一部分，并用更低级别的DOM液体代替。 可以改造具有双容器液压，单容器液压或其它系统的现有纸浆厂，以提供低DOM稀释液（包括基本上不含DOM的白液）的提取和添加。 此外，商业尺寸的批量蒸煮器（每天8吨纸浆或更多）可以用低DOM液体操作以产生增强的纸浆。 使用低DOM酒稀释还可以降低H因子和有效的碱消耗，并增加漂白性。
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公开(公告)号：US5536366A
公开(公告)日：1996-07-16
申请号：US148269
申请日：1993-11-08
IPC分类号： C08B1/00 , C08B15/00 , D21C3/02 , D21C3/22 , D21C3/24 , D21C7/00 , D21C7/12 , D21C7/14 , D21C9/02 , D21C11/00 , D21C11/02 , D21C11/04 , D21G7/00
CPC分类号： D21C3/02 , D21C11/0021 , D21C11/04 , D21C3/022 , D21C3/22 , D21C3/224 , D21C3/24 , D21C7/00 , D21C7/12 , D21C7/14 , D21C9/02 , D21G7/00
摘要： Digester systems for producing paper pulp from comminuted cellulosic fibrous material take into account the level of dissolved organic materials (DOM), such as lignin, hemi-cellulose, and cellulose, maintaining the DOM level at about 100 g/l throughout the cook (particularly kraft cook). In order to make sure there is sufficient liquid to slurry the material in the feed system of a two vessel system, some liquid is withdrawn from the circulation conduits between the digester and impregnation vessel, cooled, and fed to the feed system. In a vapor phase digester, the level of liquid at the top of the digester is more precisely controlled by circulating some of the withdrawn liquid from a circulatory loop of the digester to the level tank associated with the feed system. An in-line drainer may be provided in the feed system between a make-up liquor pump and a liquid inlet conduit leading to the top of an impregnation vessel. Within the digester, a set of extraction/dilution screens is provided specifically positioned and spaced from each other, and with respect to a reintroduction conduit opening, so that mixing of different DOM concentration liquids is minimized.
摘要翻译： 用于从粉碎的纤维素纤维材料生产纸浆的消化器系统考虑了溶解的有机物质（DOM）的水平，例如木质素，半纤维素和纤维素，在整个烹饪中保持DOM水平为约100g / l（特别是 牛皮纸厨师）。 为了确保在两个容器系统的进料系统中存在足够的液体以使浆料淤浆，一些液体从蒸煮器和浸渍容器之间的循环管道中取出，冷却并进料到进料系统中。 在气相消化器中，通过将一些取出的液体从蒸煮器的循环回路循环到与进料系统相关联的液位罐中，可以更精确地控制蒸煮器顶部的液体水平。 可以在进料系统中在补充液体泵和通向浸渍容器顶部的液体入口导管之间提供在线排水器。 在蒸煮器内，提供了一组提取/稀释筛网，其特别地定位和间隔开，并且相对于再引入管道开口，使得不同的DOM浓缩液体的混合最小化。
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公开(公告)号：US5401361A
公开(公告)日：1995-03-28
申请号：US963492
申请日：1992-10-20
CPC分类号： D21C3/24 , D21C11/0021 , D21C7/00
摘要： A conventional continuous digester is modified so as to provide a countercurrent cook throughout the entire height of the digester. Instead of connecting an upper mid-point extraction screen to a flash tank, that screen is closed off and extraction is provided at the top of the digester, utilizing an in-line drainer to remove some of the liquor and feed it to a flash tank. The liquor not removed recirculates through a pressure screen to an impregnation vessel, and then back to the digester. A cooling circulation is provided just below the top extraction. Valves are provided in the liquor discharged from the drainer and a conduit from the upper mid-point extraction which may be manipulated to return the digester to conventional operation, including the addition of white liquor to the bottom recirculation.
摘要翻译： 常规的连续蒸煮器被修改为在蒸煮器的整个高度上提供逆流烹饪。 代替将上部中点提取屏幕连接到闪光罐，该屏幕被关闭并且在蒸煮器的顶部提供提取，利用在线排水器去除一些液体并将其送入闪蒸罐 。 未除去的液体通过压力筛网再循环到浸渍容器中，然后返回到蒸煮器。 在顶部提取物的正下方提供冷却循环。 在从排水器排出的液体中提供阀和来自上中点萃取的管道，其可以被操作以将蒸煮器返回到常规操作，包括向底部再循环中加入白液。
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