公开(公告)号：US06250611B1

公开(公告)日：2001-06-26

申请号：US09413885

申请日：1999-10-07

Applicant: Mark W. Pilling ,  Dale E. Nutter

Inventor： Mark W. Pilling ,  Dale E. Nutter

IPC: B01F304

CPC classification number: B01D3/20 ,  B01D3/22

Abstract: Vapor-liquid contact apparatus for chemical processing includes a vessel containing a plurality of spaced horizontal trays which support a vapor-liquid mixture, and downcomers which carry liquid down from one tray to another. Each tray has an infeed area, a bubbling area which has apertures for introducing vapor into the vapor-liquid mixture on the tray, and a liquid exit opening at the downstream end of the bubbling area. The downcomer receives the vapor-liquid mixture from the bubbling area, and it has a floor which increases the residence time of the vapor-liquid mixture in the downcomer. The floor forms an outlet which feeds liquid to the infeed area of a subsequent tray. The downcomer outlet is an elongated slot formed between a convex outer edge of the floor and a convex outer edge of the downcomer cross-section. To provide more uniform flow across the width of a bubbling area, the outlet slot which feeds the bubbling area is not wider, and is preferably narrower, at its centerline than at locations which are laterally spaced from the centerline.

Abstract translation: 用于化学处理的气液接触装置包括容纳多个间隔开的支撑气液混合物的水平托盘的容器以及将液体从一个托盘运送到另一托盘的降液管。 每个托盘具有进料区域，具有用于将蒸汽引入托盘中的气液混合物的孔的鼓泡区域和在起泡区域的下游端的液体出口。 降液管从起泡区域接收汽液混合物，并且其具有增加蒸气 - 液体混合物在降液管中的停留时间的地板。 地板形成将液体供给到后续托盘的进料区域的出口。 降液管出口是形成在底板的凸形外边缘和降液管横截面的凸形外边缘之间的细长槽。 为了在发泡区域的宽度上提供更均匀的流动，进料发泡区域的出口槽在其中心线处不比在与中心线横向间隔开的位置处更宽，并且优选地更窄。

公开(公告)号：US5360583A

公开(公告)日：1994-11-01

申请号：US77613

申请日：1993-06-17

Applicant: Dale E. Nutter

Inventor： Dale E. Nutter

IPC: B01D53/18 ,  B01D3/22 ,  B01F3/04

CPC classification number: B01D3/22

Abstract: In a crossflow gas-liquid contact tower, liquid moves horizontally across a plurality of vertically spaced trays, and downwardly from tray-to-tray while gas flows up through openings in the trays to create a liquid-vapor mixture in an active bubble area. Each opening includes an aperture in the plane of the tray, and a deflector which overlies the aperture to define lateral vapor outlet slots. The aperture is wider at its upstream end than at its downstream end; and, the deflector has upstream and downstream portions which extend across the ends of the aperture. The deflectors can be stationary or they can be vertically movable valves. The centers of the apertures are spaced apart no more than about 3.0 inches in the longitudinal flow direction, and no more than about 2.0 inches transversely of the flow direction. The apertures have lengths no greater than 2.0 inches, upstream widths no greater than about 1.0 inch, and downstream widths no greater than 0.75 inch. The lateral outlet slots have upper edges no longer than about 0.85 inch, lower edges no longer than about 2.0 inches, and heights no greater than 0.35 inch. The trays are manufactured by a pressing technique causing burrs to be formed around the lateral outlet slots.

Abstract translation: 在交叉流气液接触塔中，液体水平移动跨越多个垂直间隔的托盘，并且从托盘到托盘向​​下移动，同时气体向上流过托盘中的开口，以在活性气泡区域中产生液体 - 蒸汽混合物。 每个开口包括在托盘的平面中的孔，以及偏转器，该偏转器覆盖孔以限定侧向蒸气出口槽。 其上游端的孔径比其下游端宽; 并且偏转器具有延伸穿过孔的端部的上游和下游部分。 导流器可以是静止的，也可以是可垂直移动的阀。 孔的中心在纵向流动方向上间隔不超过约3.0英寸，并且横向于流动方向不超过约2.0英寸。 孔的长度不大于2.0英寸，上游宽度不大于约1.0英寸，下游宽度不大于0.75英寸。 侧向出口槽具有不大于约0.85英寸的上边缘，下边缘不超过约2.0英寸，高度不大于0.35英寸。 托盘通过压制技术制造，导致在侧向出口槽周围形成毛刺。

公开(公告)号：US20080308239A1

公开(公告)日：2008-12-18

申请号：US11761535

申请日：2007-06-12

Applicant: Peter W. Hart ,  Darrell M. Waite ,  Dale E. Nutter

Inventor： Peter W. Hart ,  Darrell M. Waite ,  Dale E. Nutter

IPC: D21C9/00

CPC classification number: D21C3/02 ,  D21B1/16 ,  D21C9/007 ,  D21H11/04 ,  D21H11/08 ,  D21H11/20 ,  D21H17/675 ,  D21H21/18 ,  D21H21/32 ,  D21H27/30 ,  D21H27/38

Abstract: The present disclosure relates to producing paper or paperboard having improved stiffness and strength, compared to the conventional paperboard at the same basis weight. It also discloses a method of wood pulping having a significantly increased yield and providing fiber pulps with enhanced properties such as strength and stiffness. Wood chips are chemically pulped to a high kappa number, providing a rejects component and an accepts component. The rejects component is subjected to a substantially mechanical pulping process, optionally in a presence of bleaching agent, prior to blending back into the accepts component. The resulting fiber blend is washed, optionally bleached, and subjected to a papermaking process to provide paper or paperboard with enhanced strength and stiffness at low basis weight.

Abstract translation: 本发明涉及生产具有改进的硬度和强度的纸或纸板，与常规纸板相同的基重。 它还公开了一种具有显着增加的产量的木材制浆方法，并提供具有增强性能如强度和刚度的纤维纸浆。 木屑被化学地制浆到高卡伯值，提供废品组分和接受组分。 在混合回到接受组分之前，废品组分经受基本上机械的制浆过程，任选地在漂白剂的存在下进行。 将所得纤维混合物洗涤，任选地漂白，并进行造纸过程，以低基重提供具有增强的强度和刚度的纸或纸板。

公开(公告)号：US5454989A

公开(公告)日：1995-10-03

申请号：US216297

申请日：1994-03-23

Applicant: Dale E. Nutter

Inventor： Dale E. Nutter

IPC: B01D3/20 ,  B01D3/32 ,  B01F3/04

CPC classification number: B01D3/20 ,  B01D3/324

Abstract: Vapor-liquid contact apparatus includes a plurality of substantially horizontal trays which are vertically spaced in a vessel. Liquid and vapor-liquid mixtures flow horizontally across the trays, over weirs, and vertically through downcomers to subsequent trays. Each tray has a bubble area with apertures which permit ascending vapors to flow into the vapor-liquid mixture supported on the tray. Each downcomer has an apertured bottom wall which is horizontally coextensive with an unapertured downcomer seal area on the tray therebelow. The downcomer seal area and a portion of the apertured bubble area are elevated with respect to a major portion of the tray's upper surface area. The tray has two outboard panels with integral flanges at their edges, and the upstream ends of these integral flanges are supported on a stationary truss in the vessel. To promote deentrainment of vapor from the mixture in the downcomer, a perforated sheet with inclined corrugations is positioned substantially vertically in the downcomer.

Abstract translation: 气液接触装置包括在容器中垂直间隔开的多个基本上水平的托盘。 液体和蒸汽 - 液体混合物水平地跨越塔板，在堰上，垂直地通过降液管流向后续塔板。 每个托盘具有带孔的气泡区域，其允许上升的蒸气流入支撑在托盘上的气液混合物。 每个降液管都有一个有孔的底壁，水平地与其下面的托盘上的未压缩的降液管密封区水平共同延伸。 降液管密封区域和有孔气泡区域的一部分相对于托盘的上表面区域的主要部分升高。 托盘具有两个在其边缘处具有整体凸缘的外侧板，并且这些整体凸缘的上游端支撑在容器中的固定桁架上。 为了促进蒸汽从降液管中的混合物的去除，具有倾斜波纹的多孔板基本垂直地定位在降液管中。

公开(公告)号：US5344054A

公开(公告)日：1994-09-06

申请号：US961263

申请日：1992-10-15

Applicant: Dale E. Nutter

Inventor： Dale E. Nutter

IPC: A47G25/44

CPC classification number: A47G25/442

Abstract: A garment hanger of a type having opposing longitudinally slotted stationary arms (2), a hook (1), dowel holders (5), and a stationary dowel for hanging lower body clothing (4). Opposing adjustable arms (3) fit into and slide in the longitudinal slots in the stationary arms (2) and are attached by means of tension devices (6). The tension devices (6) allow the opposing adjustable arms to remain in position once adjusted.

Abstract translation: 一种具有相对的纵向开槽固定臂（2），钩（1），榫钉架（5）和用于悬挂下身衣物（4）的固定榫钉的类型的衣架。 相对的可调节臂（3）安装在固定臂（2）的纵向槽中并在其中滑动，并通过张紧装置（6）连接。 张力装置（6）允许相对的可调节臂一旦调节就保持就位。

公开(公告)号：US5061407A

公开(公告)日：1991-10-29

申请号：US564347

申请日：1990-08-08

Applicant: Dale E. Nutter

Inventor： Dale E. Nutter

IPC: B01J10/00 ,  B01D3/16 ,  B01D3/32 ,  B01D53/18 ,  B01J19/32

CPC classification number: B01D53/185

Abstract: A prebox receptacle is mounted in a pan of a distributor which distributes liquid onto a bed of packing media in a gas-liquid contact column. The pan has a substantially horizontal deck surrounded by sidewalls, and outlet openings are formed in the deck to discharge liquid from the deck onto packing media therebelow. The prebox receptacle is mounted on and supported by the pan. The prebox has a bottom wall with a liquid-receiving upper surface, and openings which feed liquid into a deceleration space located between the bottom wall of the prebox and the deck of the pan. The openings in the prebox bottom wall are horizontally displaced from the outlet openings of the deck. The boundary of the deceleration space lies between the inlet openings and the outlet openings, and the vertical area of this boundary is substantially greater than the total area of all inlet openings which feed the deceleration space, so that liquid flowing through the boundary to the outlet openings has a substantially lower velocity than liquid flowing through the inlet openings into the deceleration space. Mixing vane units are mounted in spaces between the pans to produce eddys in the ascending vapors. At least some pans have outlet openings which lead to extension troughs which themselves have liquid outlets located in areas which are not served by any outlet openings of the pans.

Abstract translation: 预制容器插座安装在分配器的盘中，该液体分配器将液体分配到气液接触塔中的填充介质床上。 锅具有由侧壁包围的基本上水平的甲板，并且在甲板中形成出口开口以将液体从甲板排出到下面的包装介质上。 预备箱插座安装在平台上并由其支撑。 预制箱具有带有液体接收上表面的底壁，以及将液体输送到位于预制箱的底壁和盘的甲板之间的减速空间的开口。 预制箱底壁中的开口与甲板的出口开口水平位移。 减速空间的边界位于入口和出口之间，该边界的垂直面积大大地大于进给减速空间的所有入口开口的总面积，使液体流过边界到出口 开口具有比流过入口的液体低得多的速度进入减速空间。 混合叶片单元安装在平底锅之间的空间中，以在上升的蒸气中产生涡流。 至少一些平底锅具有出口开口，其出口延伸槽，其本身具有位于不由锅的任何出口开口供应的区域中的液体出口。

公开(公告)号：US4396559A

公开(公告)日：1983-08-02

申请号：US396558

申请日：1982-07-09

Applicant: Dale E. Nutter

Inventor： Dale E. Nutter

IPC: B01D3/16 ,  B01D3/22 ,  B01D3/28 ,  B01J19/32 ,  B01F3/04

CPC classification number: B01J19/32 ,  B01D3/16 ,  B01D3/22 ,  B01D3/28 ,  B01J2219/32286

Abstract: This vapor-liquid contact apparatus, suitable for use in fractionating tower sections, includes a plurality of grids which are arranged in a vertical stack. Each grid is formed of a plurality of parallel, horizontal elongated segments; and, the longitudinal axes of the segments are angularly turned relative to the segment axes in the grid therebeneath.Each segment has an upstanding flange which supports a downflowing film of liquid, and a trough portion for receiving liquid which has flowed from the flange. The trough portion is provided with liquid drain openings which are located to release liquid directly onto contacting upper edges of the flanges of the next lower grid. A plurality of connector portions, integral with and bent outwardly from the flange portions, are spot welded to the trough portions to interconnect these elements.The gas flows upwardly through openings which are provided between the flanges and troughs of the segments. The ascending gas strikes a blunt nose formed by the lower surface of the trough, giving the gas a slight angular velocity without a substantial pressure drop, and promoting the contact of the gas with the liquid film on the flange.

Abstract translation: 适用于分馏塔部分的气 - 液接触装置包括排列成垂直叠层的多个格栅。 每个网格由多个平行的水平细长段形成; 并且这些段的纵向轴线相对于其下方的网格中的分段轴线成角度地转动。 每个段具有支撑液体的向下流动膜的直立法兰和用于接收从法兰流出的液体的槽部。 槽部设置有液体排出开口，其位于将液体直接释放到接下来的下格栅的凸缘的上边缘上。 与凸缘部分成一体并向外弯曲的多个连接器部分被点焊到槽部分以互连这些元件。 气体向上流过设置在段的凸缘和槽之间的开口。 上升的气体撞击由槽的下表面形成的钝鼻，使得气体具有轻微的角速度而没有显着的压降，并促进气体与凸缘上的液膜的接触。

公开(公告)号：US4339399A

公开(公告)日：1982-07-13

申请号：US267494

申请日：1981-05-27

Applicant: Dale E. Nutter

Inventor： Dale E. Nutter

IPC: B01D3/16 ,  B01D3/22 ,  B01D3/28 ,  B01J19/32 ,  B01F3/04

CPC classification number: B01D3/16 ,  B01D3/22 ,  B01D3/28 ,  B01J19/32 ,  B01J2219/32286

Abstract: This vapor-liquid contact apparatus, suitable for use in fractionating tower sections, includes a plurality of grids which are arranged in a vertical stack. Each grid is formed of a plurality of parallel, horizontal elongated segments; and, the longitudinal axes of the segments are angularly displaced relative to the segment axis in the grid therebeneath.Each segment has an upstanding flange which supports a downflowing film of liquid, and a trough portion for receiving liquid which has flowed from the flange. The trough portion is provided with liquid drain openings which are located to allow liquid to flow directly onto contacting upper edges of the flanges of the next lower grid.The gas flows upwardly through openings which are provided between the flanges and troughs of the segments. The ascending gas strikes mutually inclined lower surfaces, giving the gas a slight angular velocity to promote turbulence in the vicinity of the flanges. A rounded edge formed at the intersection of the inclined lower surfaces minimizes pressure drop while forming the troughs that conduct the downflowing liquid horizontally.

Abstract translation: 适用于分馏塔部分的气 - 液接触装置包括排列成垂直叠层的多个格栅。 每个网格由多个平行的水平细长段形成; 并且，这些段的纵向轴线相对于其下方的网格中的段轴线成角度地移位。 每个段具有支撑液体的向下流动膜的直立法兰和用于接收从法兰流出的液体的槽部。 槽部设置有液体排出开口，其位于允许液体直接流到下一个下格栅的凸缘的接触上边缘上。

公开(公告)号：US5975504A

公开(公告)日：1999-11-02

申请号：US38554

申请日：1998-03-11

Applicant: Dale E. Nutter ,  Michael R. Resetarits ,  Daniel R. Monkelbaan ,  Nicholas F. Urbanski

Inventor： Dale E. Nutter ,  Michael R. Resetarits ,  Daniel R. Monkelbaan ,  Nicholas F. Urbanski

IPC: B01D3/22 ,  B01F3/04

CPC classification number: B01D3/22

Abstract: High vapor and liquid capacity counterflow fractionation trays demonstrating superior turndown and performance characteristics include a number of parallel downcomers separated by planar tray decking having unique bidirectional slotted cap valve geometries. Several different arrangements of the bidirectional valves are presented. The raised trapezoids of the bidirectional valves may be arranged in two groups which each face the nearest downcomer, or arranged in lines parallel to the downcomer sidewalls such that trapezoids of neighboring rows face opposite directions. In a third embodiment these bidirectional slotted cap valves are only located in the regions of the decking sections located next to the downcomers.

Abstract translation: 高蒸汽和液体容量的逆流分馏塔显示了优越的调节和性能特征，包括由具有独特的双向开槽盖阀几何形状的平面托盘甲板隔开的许多平行降液管。 提出了双向阀的几种不同布置。 双向阀的升高的梯形可以被布置成两组，每组面向最接近的降液管，或者排列成与降液管侧壁平行的线，使得相邻行的梯形面向相反的方向。 在第三实施例中，这些双向开槽盖阀仅位于靠近降液管的甲板部分的区域中。

公开(公告)号：US5645687A

公开(公告)日：1997-07-08

申请号：US499871

申请日：1995-07-10

Applicant: Raman Ambady ,  Dale E. Nutter, Jr. ,  Dewey W. Barnes

Inventor： Raman Ambady ,  Dale E. Nutter, Jr. ,  Dewey W. Barnes

IPC: D21C9/14 ,  D21C9/153

CPC classification number: D21C9/153 ,  D21C9/144

Abstract: A process for bleaching wood pulp is provided comprising subjecting the wood pulp, after brown stock washing, to an oxygen delignification stage, a washing sequence, a first chlorine dioxide or ozone bleaching stage, an oxidative extraction stage, an ozone activation stage followed by a chlorine dioxide bleaching stage in the absence of an intermediate washing stage.

Abstract translation: 提供了一种漂白木浆的方法，包括在褐色库存洗涤后将木浆经受氧脱木质阶段，洗涤顺序，第一二氧化氯或臭氧漂白阶段，氧化萃取阶段，臭氧活化阶段 在没有中间洗涤阶段的二氧化氯漂白阶段。