公开(公告)号：US5547546A

公开(公告)日：1996-08-20

申请号：US317801

申请日：1994-10-04

申请人： J. Robert Prough ,  Joseph R. Phillips

发明人： J. Robert Prough ,  Joseph R. Phillips

IPC分类号： D21B1/02 ,  D21C7/06 ,  D21C7/12

CPC分类号： D21C7/12 ,  D21B1/021 ,  D21C7/06

摘要： A chip bin for wood chips in a continuous digester system includes internal steaming that is controlled in response to both the interior temperature across the level of chips in the bin, and the level of chips in the bin, so as to substantially prevent cool, non-condensible gas-laden chips from accumulating at the top of the chip column in the bin, and to substantially prevent steam blow-through. The temperature probe used in the chip bin has a temperature sensing portion with a length of about ten to twenty feet instead of the conventional five foot length, and extends across the level of the chips to a position about five feet below the level of chips. Control of steam added to the bin is provided utilizing a controller which controls the position of one or more valves in one or more steam conduits, each valve having multiple open positions and a closed position. A vacuum and pressure relief device is disposed in a non-condensible gases vent from the bin which minimizes the potential for gross gas flow variations across it. The relief device includes a solid interior peripheral portion of the vent, a gate mounted for pivotal movement by a pivot shaft, and a casing which is a cylindrical sector (having a sector angle of about 30.degree.-60.degree.) in which the gate pivots. The casing is mounted in the solid interior peripheral portion and a brush seal is provided between the gate and the cylindrical sector casing.

摘要翻译： 用于连续蒸煮器系统中的木片的碎片箱包括内部蒸汽，其响应于箱中的切屑水平的内部温度以及料仓中的切屑水平而被控制，以便基本上防止冷却， 可靠的气体填充芯片积聚在料斗中的芯片柱的顶部，并且基本上防止蒸汽吹过。 在芯片仓中使用的温度探测器具有温度感测部分，其长度大约为十到二十英尺，而不是传统的五英尺长度，并且延伸跨越芯片的水平到比芯片级别大约五英尺的位置。 通过控制一个或多个蒸汽导管中的一个或多个阀的位置，每个阀具有多个打开位置和关闭位置的控制器来提供加到箱中的蒸汽的控制。 真空和压力释放装置设置在不可冷凝的气体排放口中，从而最小化跨越其的总气体流量变化的可能性。 排气装置包括通气口的实心内周部分，安装用于通过枢轴枢转运动的门和作为门枢转的圆柱形部分（具有约30°-60°的扇形角）的壳体 。 壳体安装在实心内周部分中，并且在门和圆柱形扇形外壳之间设置有刷密封件。

公开(公告)号：US06841042B2

公开(公告)日：2005-01-11

申请号：US10354179

申请日：2003-01-30

申请人： C. Bertil Stromberg ,  Aaron T. Leavitt ,  J. Robert Prough

发明人： C. Bertil Stromberg ,  Aaron T. Leavitt ,  J. Robert Prough

IPC分类号： D21C1/10 ,  D21C7/06 ,  D21C7/00

CPC分类号： D21C1/10 ,  D21C7/06

摘要： A system and method for feeding comminuted cellulosic fibrous material such as wood chips to the top of a treatment vessel such as a continuous digester provide enhanced simplicity, operability, and maintainability by eliminating the high pressure transfer device conventionally used in the prior art. Instead of a high pressure transfer device the steamed and slurried chips are pressurized using a single vane slurry pump in series with a centrifugal slurry pump both of which are located at least thirty feet below the top of the treatment vessel and for pressurizing the slurry to a pressure of at least about 10 bar gauge.

摘要翻译： 将诸如木屑的粉碎的纤维素纤维材料进料到诸如连续蒸煮器的处理容器的顶部的系统和方法通过消除现有技术中常规使用的高压转移装置提供了增强的简单性，可操作性和可维护性。 代替高压转移装置，使用与离心式浆液泵串联的单一叶片浆料泵来加压蒸出和制浆的碎屑，两者均位于处理容器顶部至少三十英尺处，并将浆料加压至 至少约10巴表压的压力。

公开(公告)号：US06451163B2

公开(公告)日：2002-09-17

申请号：US09900028

申请日：2001-07-09

申请人： J. Robert Prough ,  Jerry R. Johanson

发明人： J. Robert Prough ,  Jerry R. Johanson

IPC分类号： D21C712

CPC分类号： D21C7/08

摘要： In a cellulose pulp handling vessel having a first diameter material storing or treating portion above a second diameter discharge which is at least 20% less than the first diameter, reduced compression of the material and reduced power requirements of an agitator (if used), compared to prior art constructions are provided. A first transition, preferably a substantially smooth interior surface substantially frusto-conical transition, is provided between the first and second diameters. A second single-convergent transition may be provided above the first transition. A rotating agitator with at least two arms and associated paddles may be mounted for rotation in the transition about a substantially vertical axis for agitating the material in the transition. If desired, the transition may be moved, such as with a vibrator or oscillator. The invention is particularly suitable for pulp digesters and impregnation vessels.

摘要翻译： 在具有比第一直径小至少20％的第二直径排出口上方的第一直径材料储存或处理部分的纤维素纸浆处理容器中，材料的减少的压缩和搅拌器的功率要求（如果使用的话）被比较 提供了现有技术的结构。 在第一直径和第二直径之间提供第一过渡，优选地基本上平滑的内表面基本上截头圆锥形过渡。 可以在第一过渡之上提供第二单收敛过渡。 具有至少两个臂和相关桨叶的旋转搅拌器可以被安装成围绕基本上垂直的轴线在转变中旋转以在过渡中搅拌材料。 如果需要，可以移动转换，例如用振动器或振荡器。 本发明特别适用于纸浆消化器和浸渍容器。

公开(公告)号：US06432264B1

公开(公告)日：2002-08-13

申请号：US09900027

申请日：2001-07-09

申请人： J. Robert Prough ,  Jerry R. Johanson

发明人： J. Robert Prough ,  Jerry R. Johanson

IPC分类号： D21C712

摘要： In a cellulose pulp handling vessel having a first diameter material storing or treating portion above a second diameter discharge which is at least 20% less than the first diameter, reduced compression of the material and reduced power requirements of an agitator (if used), compared to prior art constructions are provided. A first transition, preferably a substantially smooth interior surface substantially frusto-conical transition, is provided between the first and second diameters. A second single-convergent transition may be provided above the first transition. A rotating agitator with at least two arms and associated paddles may be mounted for rotation in the transition about a substantially vertical axis for agitating the material in the transition. If desired, the transition may be moved, such as with a vibrator or oscillator. The invention is particularly suitable for pulp digesters and impregnation vessels.

公开(公告)号：US06325890B1

公开(公告)日：2001-12-04

申请号：US09568984

申请日：2000-05-11

申请人： J. Robert Prough ,  C. Bertil Stromberg ,  Tim S. Pease

发明人： J. Robert Prough ,  C. Bertil Stromberg ,  Tim S. Pease

IPC分类号： D21C706

摘要： A system and method for feeding comminuted cellulosic fibrous material such as wood chips to the top of a treatment vessel such as a continuous digester provide enhanced simplicity, operability, and maintainability by eliminating the high pressure transfer device conventionally used in the prior art. Instead of a high pressure transfer device the steamed and slurried chips are pressurized using one or more slurry pumps located at least thirty feet below the top of the treatment vessel and for pressurizing the slurry to a pressure of at least about 10 bar gauge. A return line from the top of the digester may, but need not necessarily, be operatively connected to the one or more pumps and if connected to the pumps, the liquid in the return line may be cooled to a temperature at which it will not flash during handling. Recirculation loops may be established associated with one or all of the slurry pumps to facilitate startup. A static flow splitter may be provided to split the flow from the last pump to two or more digesters.

摘要翻译： 将诸如木屑的粉碎的纤维素纤维材料进料到诸如连续蒸煮器的处理容器的顶部的系统和方法通过消除现有技术中常规使用的高压转移装置提供了增强的简单性，可操作性和可维护性。 代替高压转移装置，使用位于处理容器顶部至少三十英尺处的一个或多个浆料泵来加压蒸汽和浆化的碎屑，并将浆料加压至至少约10巴的压力。 来自蒸煮器顶部的返回管线可以但不一定可操作地连接到一个或多个泵，并且如果连接到泵，则返回管线中的液体可以被冷却到不闪光的温度 在处理期间。 可以建立与一个或所有浆料泵相关联的循环回路以便于启动。 可以提供静态分流器以将来自最后一个泵的流分离成两个或更多个消化器。

公开(公告)号：US6159337A

公开(公告)日：2000-12-12

申请号：US414887

申请日：1999-10-08

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 wit 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，并用较低级别的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。

公开(公告)号：US5824188A

公开(公告)日：1998-10-20

申请号：US712977

申请日：1996-09-12

申请人： J. Robert Prough ,  Bruno S. Marcoccia ,  Richard O. Laakso ,  Carl L. Luhrmann

发明人： J. Robert Prough ,  Bruno S. Marcoccia ,  Richard O. Laakso ,  Carl L. Luhrmann

IPC分类号： D21C3/02 ,  D21C3/22 ,  D21C3/24 ,  D21C7/00 ,  D21C7/12 ,  D21C7/14 ,  D21C9/02 ,  D21C11/00 ,  D21C11/04

CPC分类号： D21C3/224 ,  D21C11/0021 ,  D21C11/04 ,  D21C3/02 ,  D21C3/24 ,  D21C7/00 ,  D21C7/12 ,  D21C7/14 ,  D21C9/02

摘要： The sulfide ion concentration and sulfidity of kraft cooking liquor during kraft cooking of cellulose pulp is selectively increased. After treatment in a first treatment zone in which impregnation or kraft cooking takes place using a kraft cooking liquor having a first sulfide ion concentration and sulfidity, black liquor is extracted from the material, liquid is withdrawn from the material and dilution liquid is added to the withdrawn liquid and the withdrawn liquid with dilution liquid is reintroduced. In a second treatment zone after the first zone a second kraft cooking liquor is introduced having a second sulfide ion concentration and sulfidity greater than the first sulfide ion concentration and sulfidity (typically by about 20-50%), including by manipulating controlling the flow rate of extraction and the flow rates of withdrawal of liquid and addition of dilution liquid. The pressure of the continuous digester is controlled in a unique manner that avoids disruptions to the column of pulp continuously moving downwardly in the digester, anywhere in the digester, but particularly avoids non-uniform, unstable material in the countercurrent washing zone. The pressure is controlled by withdrawing liquid from, and introducing liquor into, the digester at at least one additional extraction-dilution loop aside from the main extraction of the digester and the wash dilution liquid introduction mechanism below the wash screens. Pressure can also be maintained (e.g. at about 130-170 psi) by also controlling the amount of wash dilution liquor, and by varying the extraction flow.

摘要翻译： 纤维素纸浆硫酸盐蒸煮时硫酸盐蒸煮液的硫化物离子浓度和硫化物有选择地增加。 在使用具有第一硫化物离子浓度和硫化物的硫酸盐蒸煮液进行浸渍或硫酸盐蒸煮的第一处理区域中处理之后，从该材料中提取黑液，从该物质中取出液体并将稀释液加入到 取出的液体和用稀释液体排出的液体被重新引入。 在第一区域之后的第二处理区域中，引入第二硫酸盐蒸煮液，其具有大于第一硫化物离子浓度和硫化物浓度的硫化物的第二硫离子浓度和硫化物（通常为约20-50％），包括通过控制流速 的提取液和液体的提取流量以及稀释液的添加量。 以独特的方式控制连续蒸煮器的压力，避免在蒸煮器中的任何地方在蒸煮器中连续向下移动的纸浆柱的中断，但是特别地避免了逆流洗涤区域中不均匀的不稳定的材料。 除了从洗涤屏幕下面的蒸煮器和洗涤稀释液引入机构的主要提取之外，在至少一个额外的提取 - 稀释回路中，从蒸煮器中抽出液体并将其引入到蒸煮器中来控制压力。 还可以通过控制洗涤稀释液的量以及通过改变提取流量来保持压力（例如约130-170psi）。

公开(公告)号：US5489363A

公开(公告)日：1996-02-06

申请号：US56211

申请日：1993-05-04

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 (e.g. at least about 15% greater tear strength at a specified tensile for fully refined pulp, and as much as about 27%) is produced by keeping the dissolved organic material (DOM) concentration below about 100 g/l (e.g.

摘要翻译： 通过将溶解的有机物质（DOM）浓度保持在约100g / l以下，生产强度增加的牛皮纸浆（例如，对于完全精制纸浆，在特定拉伸下的撕裂强度至少约15％，高达约27％） （例如，<50g / l）。 这可以通过提取含有足够量的DOM的液体来完成，该液体足够大以不利地影响纸浆强度，并且用含有比所提取的液体更低的有效DOM水平的液体代替部分或全部提取液体，以便积极地影响纸浆强度 。 替代液可以是水，白液，加压热处理黑液，洗涤滤液，冷吹滤液或组合，或者可以处理提取的液体以除去或钝化DOM（例如通过沉淀，超滤或吸收）。 提供的提取和稀释在牛皮纸烹饪过程中的许多不同阶段进行，例如在连续蒸煮器中以三个或更多个不同的水平，或者通过连续流动低浓度的DOM浓缩液通过分批蒸煮器。

公开(公告)号：US5476572A

公开(公告)日：1995-12-19

申请号：US267171

申请日：1994-06-16

申请人： J. Robert Prough

发明人： J. Robert Prough

IPC分类号： D21C1/02 ,  D21C3/24 ,  D21C7/06

CPC分类号： D21C7/06 ,  D21C3/24

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。

公开(公告)号：US07560008B2

公开(公告)日：2009-07-14

申请号：US11540687

申请日：2006-10-02

申请人： J. Robert Prough

发明人： J. Robert Prough

IPC分类号： D21D5/16 ,  D21D5/02

CPC分类号： D21C7/14

摘要： A vessel is constructed with (preferably substantially stationary) screen surfaces which minimize compaction of comminuted cellulosic fibrous material, and allow springback of the material, as it flows downwardly. A slurry of wood chips, sawdust, or pulp is passed downwardly past one or more screen surfaces, which have a number of parts, including at least a first perforated part through which liquid is extracted, and a substantially solid part substantially immediately adjacent and below the first part which has a step out to relieve compaction and allow springback of the material.

摘要翻译： 一个容器由（优选基本上静止的）筛网表面构成，其最小化粉碎的纤维素纤维材料的压实，并允许材料在向下流动时回弹。 木片，锯屑或纸浆的浆液向下通过一个或多个筛面，该筛表具有多个部件，包括至少第一穿孔部分，通过该第一穿孔部分提取液体，并且基本上实心部分基本上紧邻和下面 第一部分有一个步骤来减轻压实并允许材料的回弹。