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公开(公告)号：US5302247A
公开(公告)日：1994-04-12
申请号：US970403
申请日：1992-11-02
CPC分类号： D21C7/14
摘要： In the production of cellulose pulp (e.g. kraft pulp) utilizing a continuous digester having a number of different feed points for cooking (e.g. white) liquor and utilizing a high pressure feeder, the volume of cool white liquor that is applied to the feed system is reduced compared to conventional processing. This can cause excessive hammering, and damage the high pressure feeder and adjacent piping and equipment. In order to avoid this, liquid being recirculated from the top of the digester back to the high pressure feeder is cooled by passing it into a heat exchanger into heat exchange relationship with a cooler liquid, with the flow of coolant automatically controlled by sensing the temperature of the recirculated liquid. The temperature in the feed system can further be lowered by cooling the cooking liquor before it is added to the pulp slurry, as by passing it to a flash tank so that its temperature is reduced at least 10.degree. C., and the flashed steam can be used in an evaporator.
摘要翻译： 在使用具有多个不同进料点的连续蒸煮器（例如白色）并利用高压进料器的纤维素纸浆（例如牛皮纸浆）的生产中，施加到进料系统的冷白液体积为 与传统加工相比有所减少。 这可能会导致过度的锤击，并损坏高压给料机和相邻的管道和设备。 为了避免这种情况，从蒸煮器顶部再循环回到高压给料器的液体通过将其通入热交换器而与较冷的液体进行热交换关系来冷却，冷却剂流通过感测温度自动控制 的再循环液体。 进料系统中的温度可以通过将蒸煮液加入到纸浆中进行冷却来进一步降低，如通过将蒸煮液送入闪蒸罐中使其温度降低至少10摄氏度，闪蒸的蒸汽可以 用于蒸发器。
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公开(公告)号：US5617975A
公开(公告)日：1997-04-08
申请号：US507980
申请日：1995-07-27
CPC分类号： D21C7/06
摘要： A chip bin construction, ideally suited for bins having a maximum diameter of twelve feet or more, uniformly discharges chips, after steaming, without the necessity of a vibratory discharge. A hollow transition portion is provided between a hollow substantially right circular cylindrical main body and a rectangular discharge. The hollow transition may have a substantially circular cross-section open top and a substantially rectangular cross-section open bottom and opposite non-vertical gradually tapering side walls. At least one feed screw may be mounted at the open bottom of the transition for cooperation with the discharge, and the feed screw(s)--or the equivalent--may provide for metering of the chips. Alternatively, the hollow transition portion may provide one dimensional convergence and side relief, and no screw feeders need be provided, in which case a conventional chip meter is used.
摘要翻译： 理想地适用于最大直径为12英尺或更大的料仓的切屑仓结构在蒸汽之后均匀地排出碎屑，而不需要振动排放。 中空的过渡部分设置在中空的大致直立的圆柱形主体和矩形排出口之间。 中空过渡可以具有基本圆形的横截面开口顶部和基本上矩形的横截面敞开的底部和相对的非垂直逐渐逐渐变细的侧壁。 至少一个进料螺杆可以安装在过渡部的开口底部以与排放管协作，并且进给螺杆 - 或等效的 - 可以提供芯片的计量。 或者，中空过渡部分可以提供一维会聚和侧面释放，并且不需要设置螺旋给料器，在这种情况下，使用常规的芯片计量器。
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公开(公告)号：US5567279A
公开(公告)日：1996-10-22
申请号：US801651
申请日：1991-12-02
申请人： Joseph R. Phillips , John D. Weston , Victor L. Bilodeau , Ronald G. Bain , Mark D. Barrett , Brian F. Greenwood , John Pietrangelo
发明人： Joseph R. Phillips , John D. Weston , Victor L. Bilodeau , Ronald G. Bain , Mark D. Barrett , Brian F. Greenwood , John Pietrangelo
摘要： Located within the annular screen of the pressure diffuser is a tubular baffle hung from adjacent the top of the vessel. The baffle has two headers disposed on its inner surface, with openings in the tube providing communication between the exterior of the tube and the headers. A conduit extends from each header to an arm at the top of the vessel, to allow extracted liquid to be discharged. Another extraction conduit is provided at the bottom of the vessel, in communication with the screen interior and the tubular baffle interior. Treatment liquid, such as wash liquid, may be introduced at two, three, or more positions along the vessel with the liquid extracted from the first and second headers being introduceable at different positions along the vessel. A flexible, elastomeric material, sealing element with integral annular skirt may extend from the bottom end of the tubular baffle and engage the screen to provide a seal minimizing mixing between stages.
摘要翻译： 位于压力扩散器的环形屏幕内的是与容器顶部相邻的管状挡板。 挡板具有设置在其内表面上的两个集管，管中的开口提供管的外部和集管之间的连通。 导管从容器的顶部从每个头部延伸到臂，以允许抽出的液体排出。 在容器的底部提供另一个提取管道，与屏幕内部和管状挡板内部连通。 诸如洗涤液体的处理液体可以沿着容器引入两个，三个或更多个位置，从第一和第二集管提取的液体可以沿着容器在不同位置被引入。 具有整体环形裙部的柔性弹性体材料密封元件可以从管状挡板的底端延伸并接合屏幕以提供最小化阶段之间的混合的密封。
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公开(公告)号：US5169498A
公开(公告)日：1992-12-08
申请号：US753995
申请日：1991-09-03
IPC分类号： D21B1/02 , D21C1/02 , F16K17/194
CPC分类号： D21B1/021 , D21C1/02 , F16K17/194
摘要： The proper pressure conditions are maintained within an atmospheric pre-steaming chips bin used in the production of paper pulp. Extending upwardly from the top of the chips bin is a vertical section of conduit, an elbow section, and a horizontal section. A door guide with a door opening in it is disposed in the horizontal section and precludes passage of gas through the horizontal section except through the door opening. A pivot pin mounts a door at its top so that it normally assumes a vertical orientation closing off the opening, and it is adjustably biased into that orientation by a counterweight mechanism. The counterweight includes weight discs which mount on a vertical section of rod having external screw threads, and a horizontal section of rod is connected by a flange to a flange of the pivot pin. The door remains closed unless the pressure differential between the chips bin and the surrounding environment is greater than about 2 psig, in which case gas may flow from the environment to the chips bin, or vice versa, to bring the pressure differential within the desired range.
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公开(公告)号：US5265447A
公开(公告)日：1993-11-30
申请号：US808605
申请日：1991-12-17
申请人： Victor L. Bilodeau , Keith P. Vogel , Ron Bain
发明人： Victor L. Bilodeau , Keith P. Vogel , Ron Bain
CPC分类号： D21C9/06 , Y10S277/903
摘要： A drum washer has improved seal performance by providing a sealing body carried by the drum of a highly corrosion resistant material. The sealing body is preferably polytetrafluoroethylene or titanium, and is connected by mechanical fasteners, instead of welding, to the surrounding drum components. The annular sealing body may have a lip at its axialmost inward portion for engaging the axial outwardmost portion of the drum inner surface, and a radially outwardly extending annular flange which cooperates with a radially inwardly extending flange of the drum outer surface. Alternatively, the body may be smooth and have through-extending openings for receiving mechanical fasteners on its axially inwardmost end, and tapped openings for receiving screw threaded fasteners connected to an extension of the drum inner surface at the axially outwardmost portion.
摘要翻译： 鼓式洗衣机通过提供由耐腐蚀材料的滚筒承载的密封体而改善了密封性能。 密封体优选为聚四氟乙烯或钛，并且通过机械紧固件而不是焊接连接到周围的鼓部件。 环形密封体可以在其最内侧的部分具有唇缘，用于接合滚筒内表面的轴向最外部部分，以及径向向外延伸的环形凸缘，其与滚筒外表面的径向向内延伸的凸缘配合。 或者，主体可以是平滑的并且具有用于在其轴向最内端上接收机械紧固件的通孔，以及用于接收螺纹紧固件的开口，该螺纹紧固件连接到轴向最外侧部分处的鼓内表面的延伸部。
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6.发明授权Digester system containing a single vessel serving as all of a chip bin, steaming vessel, and chip chute 失效消化系统包含单个容器，用作所有的芯片仓，蒸汽容器和芯片滑槽
公开(公告)号：US5635025A
公开(公告)日：1997-06-03
申请号：US354005
申请日：1994-12-05
申请人： Victor L. Bilodeau
发明人： Victor L. Bilodeau
摘要： In a continuous digester system the chip feed equipment is greatly simplified by substituting a single vertical vessel for the conventional chip bin, steaming vessel and chip chute. An outlet at the bottom of the single vessel is connected, through a low pressure pump, to the low pressure input of a high pressure transfer device which is connected to a digester (either directly or through an impregnation vessel). A metering device, preferably through a pressure isolation device for maintaining superatmospheric pressure in the vessel, feeds chips into the top of the vessel. A first level, of chips, is established in the vessel and a second, liquid, level below the first level is also established. Steam is supplied to a volume between the top of the vessel and the second level utilizing a conduit with an automatically controlled valve and a temperature controller for at least partially controlling the valve. A level controller controls the supply of liquid to the vessel and is connected to the low pressure outlet from the high pressure transfer device. There is a reduction in cross-sectional area of the vessel of greater than 50% between the second level and the outlet at the bottom of the vessel. Alternatively, the pump from the bottom of the vessel may be connected to one or more batch digesters.
摘要翻译： 在连续蒸煮系统中，通过将单个垂直容器替换为常规的切屑仓，蒸汽容器和芯片滑槽，大大简化了进给设备。 单个容器底部的出口通过低压泵连接到连接到蒸煮器（直接或通过浸渍容器）的高压输送装置的低压输入端。 计量装置优选地通过压力隔离装置来维持容器中的超大气压，将碎屑送入容器的顶部。 第一级芯片是在船舶上建立的，第一级液位低于一级也是建立的。 使用具有自动控制的阀的导管和用于至少部分地控制阀的温度控制器将蒸汽供应到容器的顶部和第二水平之间的体积。 液位控制器控制向容器供应液体，并从高压输送装置连接到低压出口。 第二级和容器底部的出口之间的容器横截面面积减小了大于50％。 或者，来自容器底部的泵可以连接到一个或多个分批蒸煮器。
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公开(公告)号：US5183536A
公开(公告)日：1993-02-02
申请号：US850522
申请日：1992-03-13
申请人： Joseph Phillips , J. Robert Prough , Victor L. Bilodeau , Brian Greenwood , Ronald Bain , John Weston
发明人： Joseph Phillips , J. Robert Prough , Victor L. Bilodeau , Brian Greenwood , Ronald Bain , John Weston
CPC分类号： D21H17/00 , B01D33/0116 , D21C9/04 , D21D1/40 , D21D5/02
摘要： In an atmospheric diffuser for the treatment of paper pulp (thickening, bleaching, and/or washing) the flow of backflushing liquid is controlled so as to maximize the effective treatment of the pulp. The pulp passes upwardly in a vessel. A number of annular screen assemblies are provided, with at least one screen associated with each screen assembly. The lower screen includes a barrier wall with a passage in the barrier wall adjacent the bottom end of the screen. Liquid which flows through the screen must flow to the passage in order to be withdrawn from the vessel, as the screen is slowly moved upwardly. When the screen is rapidly moved downwardly to cause backflushing, the backflushing liquid at the top end of the screen is liquid that recently passed through the screen at that point, so the pulp at that point --which is the cleanest along the length of the screen--has a minimal chance of being contaminated. The barrier may be provided by a number of tubes separated by webs, or a number of channels separated by webs. A baffle may be mounted between each passage and screen to redirect the backflushing liquid so that it does not merely backflush the bottom portion of the screen.
摘要翻译： 在用于处理纸浆（增稠，漂白和/或洗涤）的大气扩散器中，控制反冲洗液体的流动以最大化纸浆的有效处理。 纸浆在容器中向上流动。 提供了许多环形屏幕组件，其中至少一个屏幕与每个屏幕组件相关联。 下屏幕包括阻挡壁，阻挡壁在屏障壁中与屏幕底端相邻的通道。 当屏幕缓慢向上移动时，流过筛网的液体必须流动到通道以便从容器中取出。 当屏幕快速向下移动以引起反吹时，屏幕顶端的反冲洗液体是最近在那一点通过筛网的液体，因此在该点处的纸浆是沿屏幕长度最干净的 - 受到污染的机会很小。 隔离层可以由多个由纤维网隔开的管道或由纤维网隔开的多个通道提供。 可以在每个通道和屏幕之间安装挡板以重定向反冲洗液体，使得其不仅仅反冲洗屏幕的底部。
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公开(公告)号：US5187956A
公开(公告)日：1993-02-23
申请号：US718294
申请日：1991-06-20
申请人： Joseph R. Phillips , Peter E. T. Warloff , John Hefele , Victor L. Bilodeau , Ronald G. Bain , Mark Barrett
发明人： Joseph R. Phillips , Peter E. T. Warloff , John Hefele , Victor L. Bilodeau , Ronald G. Bain , Mark Barrett
摘要： In a pressure diffuser, clogging of the tapered inlet passageway at the bottom of the vessel is minimized by providing a number of lubricating fluid introducing nipples disposed circumferentially around the annular passageway. The nipples introduce lubricating fluid so that it flows upwardly along the inner wall of the vessel. The vessel inner wall and the bottom support for the screen at the passageway are polished and free of projections, so that friction is minimized. The nipples are provided in sets that are staggered so that a nozzle is placed about every 15.degree. around the circumference of the vessel, and a common annular header--mounted on the support legs of the vessel--provides the lubricating fluid. Should screen movement slow as a result of paper pulp properties near the screen bottom support, the flow rate of lubricating liquid can be increased so as to significantly dilute the pulp at the passageway until slow movement of the screen is overcome.
摘要翻译： 在压力扩散器中，通过在环形通道周围设置多个润滑流体引入乳头，使容器底部的锥形入口通道堵塞最小化。 乳头引入润滑流体，使其沿容器的内壁向上流动。 在通道处的屏幕的容器内壁和底部支撑被抛光并且没有凸起，使得摩擦力最小化。 乳头以交错的方式设置，使得喷嘴围绕容器的圆周大约每隔15°放置，并且在容器的支撑腿上安装有共同的环形头部 - 提供润滑流体。 由于屏幕底部支撑附近的纸浆性质，屏幕运动缓慢，可以增加润滑液体的流速，以便在通道处显着稀释纸浆，直到屏幕的缓慢移动被克服。
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