公开(公告)号：US4220498A

公开(公告)日：1980-09-02

申请号：US969495

申请日：1978-12-14

Applicant: James R. Prough

Inventor： James R. Prough

IPC: D21C9/10

CPC classification number: D21C9/1068

Abstract: A method and apparatus for the delignification of cellulosic fiber material to minimize the amount of reject material in the final pulp produced. The fiber material is digested, washed, oxygen delignified, and passed through a screening stage to provide a main pulp stream, and a reject stream from the separation stage. The flow and consistency of the separated reject material is determined, the reject material is refined, and sufficient chemical is added to the separated reject material, based upon the flow and consistency thereof, so that subsequent delignification of the reject material may be effected. This may be accomplished either by passing the reject material through a separate oxygen delignification stage and then returning it to the main pulp stream, or adding caustic to it and soaking it in a soak tank for predetermined period of time, and then returning it to the main pulp stream before the oxygen delignification stage therein.

Abstract translation: 一种用于纤维素纤维材料去木质化以最小化所生产的最终纸浆中的废料量的方法和装置。 纤维材料被消化，洗涤，氧脱木质素，并通过筛分阶段以提供主浆料流和来自分离阶段的废品流。 确定分离的废料的流动和一致性，根据其流动和一致性，对废料进行精炼，并将足够的化学品加入到分离的废料中，从而可以实现废料的后续脱木质化。 这可以通过将废料材料通过单独的氧脱木质阶段，然后将其返回到主浆料流，或者向其中加入苛性碱并将其浸泡在浸泡罐中预定的时间段内，然后将其返回到 在其中脱氧木质素阶段之前的主要纸浆流。

公开(公告)号：US4162933A

公开(公告)日：1979-07-31

申请号：US813648

申请日：1977-07-07

Applicant: Michael I. Sherman ,  James R. Prough

Inventor： Michael I. Sherman ,  James R. Prough

IPC: D21C3/22 ,  D21C3/24

CPC classification number: D21C3/228 ,  Y10S162/10

Abstract: A process for continuously digesting cellulosic fibrous material wherein the degree of delignification of the cellulosic fibrous material in the digestion zone is continuously determined and monitored by determining the exothermic heat of the delignification reaction taking place in the digester. The exothermic heat of the delignification reaction is determined by measurements of the temperature rise occurring in the delignification zone and the heat capacity of the cellulosic material and digesting liquor.

Abstract translation: 一种用于连续消化纤维素纤维材料的方法，其中通过测定在蒸煮器中发生的脱木质反应的放热，连续地确定和监测消化区中的纤维素纤维材料的脱木质度。 脱木质反应的放热通过测定脱木素带中发生的温度升高和纤维素材料和消化液体的热容量来确定。

公开(公告)号：US5236286A

公开(公告)日：1993-08-17

申请号：US868347

申请日：1992-04-15

Applicant: James R. Prough

Inventor： James R. Prough

IPC: B65G53/46 ,  D21C7/06

CPC classification number: B65G53/4633 ,  B65G53/46 ,  D21C7/06

Abstract: A high pressure transfer device for feeding wood chips to a digester in the production of paper pulp has enhanced efficiency. A rotor having first and second sets of through extending conduits is mounted for rotation in a housing having first through fourth ports associated with each set, with a screen at the third port of each set for screening wood chips out of liquid passing through that third port. The third port of each set is connected to its own distinct source of suction, so as to enhance filling efficiency of the rotor.

Abstract translation: 用于在纸浆生产中将木屑送入蒸煮器的高压转移装置提高了效率。 具有第一组和第二组贯穿延伸管道的转子被安装成用于在具有与每组相关联的第一至第四端口的壳体中旋转，在每组的第三端口处具有屏幕，用于将木片从穿过该第三端口的液体中筛选出来 。 每组的第三个端口连接到其独特的吸力源，以提高转子的灌装效率。

公开(公告)号：US4146422A

公开(公告)日：1979-03-27

申请号：US815200

申请日：1977-07-12

Applicant: James R. Prough

Inventor： James R. Prough

IPC: D21C3/22 ,  D21C3/24 ,  D21C7/12

CPC classification number: D21C3/228 ,  Y10S162/10

Abstract: An improved process for continuously monitoring and controlling a continuous process for digestion of cellulose utilizing a computer which is programmed to determined (1) the mass of wood being fed to the digester from measurements of the density of the wood slurry feed, the density of the liquid and the total flow of slurry, (2) the mass of wood being withdrawn from the digester from measurements of the density of the pulp slurry, the density of the liquor and the total flow of slurry, (3) the correct amount of fresh digester liquor to be added concurrently with the wood feed and (4) amount of water wash and makeup digester liquor to be fed to the reactor. The computer can also be programmed to control the temperature in the reaction zone of the digester.

Abstract translation: 一种用于连续监测和控制用于消化纤维素的连续方法的改进方法，其使用计算机，该计算机被编程以确定（1）通过测量木材浆料进料的密度来测量木材的质量， 液体和浆料的总流量，（2）通过纸浆浓度的测量，液体的密度和浆料的总流量，从蒸煮器中取出的木材质量，（3）正确的新鲜量 与木材饲料同时加入的消化液，和（4）将要加入反应器的水洗和化妆蒸煮液的量。 计算机也可以编程为控制蒸煮器反应区的温度。

公开(公告)号：US5236285A

公开(公告)日：1993-08-17

申请号：US868345

申请日：1992-04-15

Applicant: James R. Prough

Inventor： James R. Prough

IPC: B65G53/46 ,  D21C7/06

CPC classification number: B65G53/4633 ,  B65G53/46 ,  D21C7/06

Abstract: A high pressure transfer device for feeding wood chips to a digster in the production of paper pulp has enhanced efficiency. A pocketed rotor is mounted for rotation in a housing having first through fourth ports, with a screen at the third port for screening wood chips out of liquid passing through that third port. This screen is blanked at the leading edge in the direction of rotation so that as a pocket rotates into operative association with the first and third ports, the pocket inlet has an arcuate extent of about two inches which is exposed to the first port --large enough to allow chips to start flowing freely into the pocket--before the outlet of that pocket is exposed to a suction source in communication with the screen. A pump supplies high pressure liquid to the second port, but the second and fourth ports are constructed so that a pocket inlet--as the rotor rotates into operative association with the second and fourth ports--is not operatively exposed to the high pressure liquid from the pump until that pocket outlet is already in communiction with the fourth port over an arcuate extent of about two to three inches, allowing chips in the pocket to escape rather than be compressed by the high pressure flow.

Abstract translation: 用于在纸浆生产中将木片供给到挖掘机的高压输送装置提高了效率。 安装有用于在具有第一至第四端口的壳体中旋转的袋式转子，在第三端口处具有屏幕，用于从穿过该第三端口的液体中筛选木屑。 该屏幕在旋转方向的前缘处被冲切，使得当口袋旋转成与第一和第三端口可操作地相关联时，口袋入口具有大约两英寸的弓形范围，其暴露于第一端口 - 足够大 以允许芯片开始自由地流入袋中 - 在该口袋的出口暴露于与屏幕通信的抽吸源之前。 泵向第二端口提供高压液体，但是第二和第四端口被构造成使得随着转子旋转成与第二和第四端口可操作地相关联的口袋入口不能从第二端口操作地暴露于高压液体 直到该口袋出口已经与第四端口在大约2至3英寸的弓形范围内通信，允许口袋中的碎屑逸出而不是被高压流压缩。

公开(公告)号：US4626318A

公开(公告)日：1986-12-02

申请号：US754739

申请日：1985-07-15

Applicant: James R. Prough ,  James E. Morin

Inventor： James R. Prough ,  James E. Morin

IPC: D21D1/00 ,  D21F1/00 ,  D21G9/00 ,  G01N33/34 ,  D21D1/20 ,  D21D5/20

CPC classification number: D21G9/0018 ,  D21D1/002 ,  D21F1/0009 ,  G01N33/343

Abstract: Immediate and accurate control of a pulp refiner is provided so as to control the degree of refining in the production of mechanical pulp, such as RMP, TMP, and CTMP. The mechanical pulp discharged from a refiner is fluidized by a fluidizing centrifugal pump, the fluidizing action instantaneously removing the pulp latent properties. A sample of the latency-removed pulp is then subjected to a pulp freeness measurement, and that freeness measurement is supplied to a computer. The computer utilizes the freeness measurement, as well as other measurements such as pulp consistency and flow rate measurements, and dilution flow measurements, and in response to the inputs control refiner parameters to ensure that the freeness of the mechanical pulp being produced is within the desired range. The refiner parameters controlled can be the hydraulic plate loading (refining pressure), and/or the tonnage of fiber supplied to the refiner.

Abstract translation: 提供了对纸浆精炼机的立即和准确的控制，以便控制生产机械纸浆如RMP，TMP和CTMP的精炼程度。 从精制机排出的机械纸浆通过流化离心泵流化，流化作用即时去除纸浆潜在性质。 然后对延迟消除的纸浆的样品进行纸浆游离度测量，并将该游离度测量值提供给计算机。 计算机利用游离度测量以及诸如纸浆稠度和流量测量以及稀释流量测量的其它测量，并且响应于输入，控制精磨机参数以确保所生产的机械纸浆的游离度在所需的 范围。 控制的精磨机参数可以是液压板装载（精炼压力）和/或提供给精炼机的纤维吨数。

公开(公告)号：US4104113A

公开(公告)日：1978-08-01

申请号：US698125

申请日：1976-06-21

Applicant: Michael I. Sherman ,  James R. Prough

Inventor： Michael I. Sherman ,  James R. Prough

IPC: D21C7/00 ,  D21C7/10

CPC classification number: D21C7/00

Abstract: An apparatus and method for the digestion of cellulosic fiber material providing pulp of very uniform quality. Cellulosic fiber material entrained in treatment liquid is fed into a top portion of a first vertical treatment vessel, impregnation of the fiber material with treatment liquid taking place in the first vessel. A first flow path of fiber material entrained in and impregnated with treatment liquid is established from the bottom of the first vessel to a top portion of a separate second vertical treatment vessel, liquid substantially filling the second vessel. Liquid is withdrawn from the top portion of the second vessel (without screening) and a second flow path is established of the liquid withdrawn from the second vessel back toward the bottom portion of the first vessel, heating of the liquid during transport in the second flow path taking place. A portion of the heated liquid flowing in the second flow path is fed into the first flow path, while the remainder of the heated liquid is fed to a bottom portion of the first vessel, the bottom portion of the first vessel serving as the heating chamber. Washing as well as digesting may taken place in the second vessel, the uniform quality digested fiber material is withdrawn from the bottom of the second vessel.

Abstract translation: 用于消化提供质量非常均匀的纸浆的纤维素纤维材料的装置和方法。 夹带在处理液中的纤维素纤维材料被送入第一垂直处理容器的顶部，纤维材料用第一容器中的处理液浸渍。 夹带并浸渍有处理液体的纤维材料的第一流动路径从第一容器的底部建立到单独的第二垂直处理容器的顶部，液体基本上填充第二容器。 液体从第二容器的顶部排出（不筛选），并且建立从第二容器排出的液体朝向第一容器的底部的第二流动路径，在第二流动的运输过程中加热液体 路径发生。 在第二流路中流动的加热液体的一部分被供给到第一流路中，而剩余的加热液体被供给到第一容器的底部，第一容器的底部用作加热室 。 洗涤以及消化可能发生在第二容器中，均匀质量消化的纤维材料从第二容器的底部排出。

公开(公告)号：US06272710B1

公开(公告)日：2001-08-14

申请号：US09306416

申请日：1999-05-06

Applicant: James R. Prough

Inventor： James R. Prough

IPC: D06B302

CPC classification number: D21C9/04 ,  D21D1/40

Abstract: The problems of non-uniform treatment of paper pulp that may be caused by differential flow velocities within a vessel, channeling, and/or disruption of the pulp flow, are substantially eliminated by providing a non-circular cross-section substantially atmospheric pressure vessel with at least one screen surface, and typically a liquid introducing device. The vessel, screen surface, and liquid introducing device are constructed and positioned with respect to each other so that during the treatment of a pulp slurry the slurry has substantially uniform width in a treatment zone, and there is substantially uniform resistance to the flow of slurry over the screen surface over any particular cross-section of the vessel in the treatment zone, and its consistency varies less than 6% in the treatment zone (e.g. between 8-14%). The screen surface may comprise substantially vertical screening portions vertically spaced by non-screening portions, and the vessel wall may bulge out at the location of the non-screening portions so as to provide a slurry width at the bulges at least five percent wider than at the screening portions. The vessel may have a substantially race track shape in cross-section at the treatment zone, and the slurry width may form an annulus in the vessel, the annulus being substantially uninterrupted in the treatment zone (there being no arms or like structures which disrupt the flow). The screen surface may be rotated 5-30°, or oscillated or vibrated horizontally (transverse to pulp movement) to minimize plugging.

Abstract translation: 通过提供非圆形横截面基本上大气压力容器，基本上消除了可能由容器内的不同流速引起的纸浆不均匀处理的问题，窜槽和/或纸浆流动的破坏， 至少一个屏幕表面，并且通常是液体引入装置。 容器，筛面和液体引入装置相对于彼此构造和定位，使得在处理纸浆期间，浆料在处理区域中具有基本上均匀的宽度，并且基本上具有均匀的耐浆液流动性 在处理区域的容器的任何特定横截面上的筛网表面上，其处理区域的稠度变化小于6％（例如在8-14％之间）。 屏幕表面可以包括基本垂直的非屏蔽部分垂直隔开的屏蔽部分，并且容器壁可以在非屏蔽部分的位置处凸出，以便在凸起处提供至少比在 筛选部分。 容器可以在处理区域具有基本上的轨道形状的横截面，并且浆料宽度可以在容器中形成环形空间，环在处理区域中基本上不间断（没有臂或类似的结构，其破坏 流）。 屏幕表面可以旋转5-30°，或者水平摆动或振动（横向于纸浆运动）以最小化堵塞。

公开(公告)号：US6024227A

公开(公告)日：2000-02-15

申请号：US905324

申请日：1997-08-04

Applicant: Vic L. Bilodeau ,  R. Fred Chasse ,  James R. Prough ,  C. Bertil Stromberg ,  Craig A. Walley

Inventor： Vic L. Bilodeau ,  R. Fred Chasse ,  James R. Prough ,  C. Bertil Stromberg ,  Craig A. Walley

IPC: B03B5/28 ,  B03B5/62 ,  B04C3/00 ,  B04C3/06 ,  D21C7/00 ,  D21D5/22

CPC classification number: B03B5/62 ,  B04C3/00 ,  B04C3/06 ,  Y10S209/913

Abstract: Dense, tramp material, is efficiently separated in a comminuted cellulosic fibrous material feed system, for example in a chemical cellulose digester feed system, in a simple but effective matter. By merely utilizing a generally vertical conduit and a slurry flow within it (which may be augmented by high speed liquid introduction), that is caused to turn in a radiused path, centrifugal force allows separation of the tramp material into a cavity beneath the radius transition without requiring any mechanical element to engage the slurry. Appropriate purges, baffles, and discharge mechanisms may be provided. Alternatively, a tramp material separator may be built into an otherwise conventional metering screw in a digester feed system, or one or more centrifugal separators can be provided downstream of the slurry pump in a chip slurry transport system or digester feed system.

Abstract translation: 密集的杂质材料在粉碎的纤维素纤维材料进料系统中有效分离，例如在化学纤维素消化器进料系统中，在简单但有效的物质中。 通过仅使用通常垂直的管道和其内的浆料流（其可以通过高速液体引入而增加），其被引入到圆弧路径中，离心力允许将流质材料分离成半径过渡下的空腔 而不需要任何机械元件来接合浆料。 可以提供适当的清洗，挡板和排出机构。 或者，可以在蒸煮器进料系统中将另外常规的计量螺杆内置流质分离器，或者可以在浆料输送系统或蒸煮器进料系统中的浆料泵下游提供一个或多个离心分离器。

公开(公告)号：US4071399A

公开(公告)日：1978-01-31

申请号：US719656

申请日：1976-09-01

Applicant: James R. Prough

Inventor： James R. Prough

IPC: D21C1/00 ,  D21C7/06 ,  D21C3/24 ,  D21C7/14

CPC classification number: D21C1/00 ,  D21C7/06

Abstract: An apparatus and method for the displacement impregnation of cellulosic chips material with digesting liquid. Cellulosic chips material and liquid are fed from a source to a high pressure transfer valve whereat the pressure of the chips and liquid is boosted. The chips are fed from the high pressure transfer valve through a feed system to the topmost portion of a vertical treatment vessel, the vessel having a topmost portion and an impregnation zone in an upper portion thereof below the topmost portion. A countercurrent flow of digesting liquid in the vessel impregnation zone is established to impregnate the chips material with digesting liquid, and displace the water and minerals therefrom, and liquid withdrawn from the top of the treatment vessel is withdrawn into the feed system. The withdrawals insure that essentially no free water enters the impregnation zone. A chips plug is established at the vessel top through which all withdrawn liquid must pass. Digesting liquid may be supplied to an end portion of the high pressure treatment valve for maintaining the pH of liquid around the high pressure transfer valve at 8 or above.

Abstract translation: 一种用消解液置换浸渍纤维素片材的设备和方法。 纤维素芯片材料和液体从源供给到高压转移阀，在那里芯片和液体的压力升高。 芯片从高压转移阀通过进料系统供给到垂直处理容器的最高部分，容器在其最上部分的上部具有最高部分和浸渍区。 建立容器浸渍区中消解液的逆流，以消化液浸渍碎屑材料，并从中移出水和矿物质，将从处理容器顶部排出的液体排入进料系统。 提款确保基本上没有自由水进入浸渍区。 在容器顶部建立芯片塞，所有取出的液体必须通过该插头通过。 可以将消化液体供给到高压处理阀的端部，用于将高压转移阀周围的液体的pH维持在8以上。