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：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。

公开(公告)号：US3950147A

公开(公告)日：1976-04-13

申请号：US496024

申请日：1974-08-08

Applicant: Erwin D. Funk ,  Oliver A. Laakso ,  James R. Prough

Inventor： Erwin D. Funk ,  Oliver A. Laakso ,  James R. Prough

IPC: B01J3/02 ,  C10J3/50

CPC classification number: C10J3/506 ,  B01J3/02 ,  C10J3/482 ,  C10J3/485 ,  C10J3/503 ,  C10J2200/156 ,  C10J2300/0906 ,  Y10S48/07

Abstract: A process for providing pressurized, pulverized coal for use in combustion or gasifying of coal by the fluidized bed or suspended particle combustion principles which comprises the steps of introducing lump coal, of stoker size to run of mine size, into a low energy liquid circulation stream; transferring the lump coal to a high energy, high pressure, liquid circulation stream; separating the lump coal from the high energy liquid circulation stream by lifting the coal through a free liquid surface, said high energy liquid draining from the coal by gravity; directing the coal by gravity transfer to a continuous mechanical dryer for removal of surface liquid; gravity transfer to a coal crusher for major size reduction; gravity transfer to a coal pulverizer for size reduction necessary for the gasification processes; transfer of pulverized coal by gas circulation from the pulverizer to a cyclone separator, said circulating gas used in the pulverizer for coal particle classifying; and final injection of the pulverized coal to a fluidized bed or suspended flow coal gasifier or any pressurized combustion chamber, and apparatus for carrying out the process comprising a combination of known components.

公开(公告)号：US06553593B2

公开(公告)日：2003-04-29

申请号：US09879624

申请日：2001-06-13

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.

公开(公告)号：US06332542B2

公开(公告)日：2001-12-25

申请号：US09858596

申请日：2001-05-17

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: B07B100

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.

公开(公告)号：US4259150A

公开(公告)日：1981-03-31

申请号：US101565

申请日：1979-12-10

Applicant: James R. Prough

Inventor： James R. Prough

IPC: D21C9/10 ,  D21C9/02 ,  D21C9/18

CPC classification number: D21C9/1068

Abstract: A method and apparatus for the treatment of fiber material by oxygen bleaching. Digested cellulosic fiber material is treated with oxygen to reduce the Kappa number thereof further to about 15 or below. The reaction products are removed immediately after formation, and during the oxygen bleaching process. The fiber material is at a first consistency of about 8 to 15% consistency, and treatment with oxygen is accomplished by mixing the pulp with O.sub.2, NaOH solution, and water to thereby form an integral mixture of pulp with oxygen at a second consistency, thickening the integral mixture to return it to generally its first consistency, and repeating the mixing and thickening until pulp of a desired Kappa number (15 or below) is reached. The pulp is then washed and may be subsequently treated to reduce the Kappa number thereof to any desired value. A thickener is used which can thicken pulp at superatomspheric pressures and at a temperature greater than 100.degree. C.

Abstract translation: 一种通过氧气漂白处理纤维材料的方法和装置。 用氧气处理消化的纤维素纤维材料以将其卡巴值进一步降低至约15或更低。 在形成后立即除去氧气漂白过程中的反应产物。 纤维材料具有约8至15％稠度的第一稠度，并且用氧气处理是通过将纸浆与O 2，NaOH溶液和水混合从而以第二稠度形成纸浆与氧的一体混合物，增稠 整体混合物将其恢复至其第一稠度，并重复混合和增稠，直到达到所需卡伯值（15或更低）的纸浆。 然后洗涤纸浆并随后处理以将其卡帕值降低至任何所需值。 使用增稠剂，其可以在超原子压力和大于100℃的温度下使纸浆增稠。

公开(公告)号：US4239590A

公开(公告)日：1980-12-16

申请号：US2762

申请日：1979-01-11

Applicant: James R. Prough

Inventor： James R. Prough

IPC: D21C3/22 ,  D21C7/12 ,  D21F1/08

CPC classification number: D21C3/228

Abstract: A process for continuously monitoring and controlling a continuous process for digestion of cellulose utilizing a computer which is programmed to determine (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: 一种使用计算机连续监测和控制消化纤维素的连续方法的方法，所述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（1）从测量木材浆料进料中的木材的质量，液体的密度 和浆料的总流量，（2）从纸浆浆料的密度，液体的密度和浆料的总流量的测量中从消化器取出的木材质量，（3）正确量的新鲜蒸煮器 与木材饲料同时加入的液体和（4）待加入反应器的水洗和化妆消化液的量。 计算机也可以编程为控制蒸煮器反应区的温度。