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公开(公告)号：US4234417A
公开(公告)日：1980-11-18
申请号：US25285
申请日：1979-03-29
申请人： W. Thomas Gauld , Eigild S. Thomsen
发明人： W. Thomas Gauld , Eigild S. Thomsen
IPC分类号： B01D29/17 , B01D25/38 , B01D29/00 , B01D29/25 , B01D29/37 , B01D29/46 , B01D29/62 , B07B1/20 , D21D5/02
摘要： An apparatus for screening fibrous stock. A rotor is rotatably mounted within an open ended, cylindrical screen which is mounted in a hollow housing. Fibrous stock is introduced into the housing and rotation of the rotor causes the portion of the fibrous stock that will pass through the screen to do so. Any fibrous stock that passes through the screen is discharged from the housing. The rotor includes a cylindrical body member having a plurality of blade members attached thereto and spaced substantially evenly about the circumference of the body member and radiating outwardly therefrom. Each blade member has a leading edge and a trailing edge with the leading edge spaced farther from the body member than the trailing edge.
摘要翻译： 筛选纤维原料的装置。 转子可旋转地安装在安装在中空壳体中的开口圆柱形屏幕内。 纤维材料被引入到壳体中并且转子的旋转导致将通过筛网的纤维原料的部分这样做。 通过筛网的任何纤维原料从壳体排出。 转子包括圆柱形本体构件，其具有附接到其上的多个叶片构件并且基本均匀地围绕主体构件的圆周间隔开并从其向外辐射。 每个叶片构件具有前缘和后缘，其前缘与后缘间隔离主体构件更远。
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公开(公告)号：US4744894A
公开(公告)日：1988-05-17
申请号：US880552
申请日：1986-06-30
申请人： W. Thomas Gauld
发明人： W. Thomas Gauld
摘要： A dam is used to divide the typical single screen of a fibrous stock screening apparatus into two primary screening zones. Stock inlet and rejects outlet ports are routed to each primary screening zone. The screen is extended past the typical rotor to create an initial screening zone. One or more of the blades of the rotor may also be extended to create turbulence and/or oscillating pressures in the initial screening zone. The profile of the blades may be designed to produce a shearing action with a long moderate relief on the trailing edge to create gradual and extended negative pressure.
摘要翻译： 使用大坝将纤维储存筛选装置的典型单筛分成两个主要筛选区。 进口和出口的出口端口被送到每个主筛选区。 屏幕延伸超过典型的转子以创建初始屏蔽区。 转子的一个或多个叶片也可以被延伸以在初始筛选区域中产生湍流和/或振荡压力。 叶片的轮廓可以被设计成产生剪切作用，在后缘处具有长的中度浮雕以产生逐渐和延长的负压。
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公开(公告)号：US5601690A
公开(公告)日：1997-02-11
申请号：US273467
申请日：1994-07-11
申请人： W. Thomas Gauld , Ronald Visser , Arthur V. Jepsen
发明人： W. Thomas Gauld , Ronald Visser , Arthur V. Jepsen
摘要： A method for screening fibrous stock slurry having a rotor impeller and a screen, in which accepts quality and throughput may be adjusted without stopping the screening process by relative displacement of the clearance between the rotor and the screen plate. In one version, this relative displacement is accomplished by axial displacement of frusto-conical portions of the bladed rotor and screen. The relative axial displacement changes the degree of pulp disturbance in a primary screening zone, thus causing throughput and accepts quality to change accordingly. The primary screening zone may be between the rotor impeller and the screen, or it may be on the other side of the screen, in which case the blades on the screen are designed to permit a portion of the pulp slurry to flow through the screen into a region between the rotor impeller and the screen. Axial displacement may also be used to effect an adjustable clearance between a planar screen and a planar rotor impeller or between a rotor having an inclined surface for slidable blades and a cylindrical screen.
摘要翻译： 一种用于筛选具有转子叶轮和筛网的纤维浆料的方法，其中可以通过转子和筛板之间的间隙的相对位移来停止筛选过程来接受质量和产量。 在一个版本中，这种相对位移是通过叶片转子和筛网的截头圆锥形部分的轴向位移来实现的。 相对轴向位移改变了初级筛分区域的纸浆干扰程度，从而导致产量和质量相应的变化。 主筛选区可以在转子叶轮和筛网之间，或者它可以在筛网的另一侧，在这种情况下，筛网上的叶片被设计成允许纸浆浆液的一部分流过筛网进入 转子叶轮与筛网之间的区域。 也可以使用轴向位移来实现平面筛和平面转子叶轮之间或具有用于可滑动叶片的倾斜表面的转子和圆柱形筛网之间的可调节间隙。
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公开(公告)号：US4462901A
公开(公告)日：1984-07-31
申请号：US335246
申请日：1981-12-28
申请人： W. Thomas Gauld
发明人： W. Thomas Gauld
摘要： An apparatus for screening fibrous stock. The apparatus includes a preliminary screen, a rotor, and a cylindrical secondary screen. The stock first passes through the preliminary screen into the rotor and secondary screen. The preliminary filtered stock then passes through the secondary screen. Any stock not passing through the preliminary or secondary screens is discharged from the apparatus.
摘要翻译： 筛选纤维原料的装置。 该装置包括初步屏幕，转子和圆柱形二次屏幕。 股票首先通过初步屏幕进入转子和二次屏幕。 然后将预过滤的原料通过二次筛。 没有通过初级或次级屏幕的任何存货从设备中排出。
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公开(公告)号：US4374728A
公开(公告)日：1983-02-22
申请号：US288101
申请日：1981-07-29
申请人： W. Thomas Gauld
发明人： W. Thomas Gauld
CPC分类号： D21D5/026 , B01D29/118 , B07B1/20 , B01D2201/287
摘要： Baffles are added to the blade members of the rotor of an apparatus for screening fibrous stock to cause the flow of stock within the screening zone along the length of the blades to angle away from the blades rather than parallel with the blades. Passageways are added to allow untreated stock to be added at points deep within the screening zone to maintain a proper water to fiber ratio throughout the screening zone.
摘要翻译： 将挡板添加到用于筛选纤维原料的设备的转子的叶片构件中，以使沿着叶片长度的筛分区域内的原料流动与叶片相离而不是与叶片平行。 添加通道以允许在筛选区域内的深处加入未处理的原料，以在整个筛选区域保持适当的水与纤维的比例。
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公开(公告)号：US4155840A
公开(公告)日：1979-05-22
申请号：US874860
申请日：1978-02-02
申请人： W. Thomas Gauld , Arthur V. Jepsen
发明人： W. Thomas Gauld , Arthur V. Jepsen
摘要： An apparatus for sorting wood chips or other particulate material into groups according to size. The apparatus includes a housing having an opened top, a first screen attached to the housing substantially covering the opened top thereof, a second screen attached to the housing beneath the first screen, and a hopper fixedly attached to the housing for holding a quantity of wood chips and for depositing wood chips onto substantially the center of the first screen. The first and second screens slope downwardly from the centers thereof so that any wood chips of a size too large to pass therethrough will pass, aided by the force of gravity, to the periphery thereof. The openings in the second screen are smaller than the openings in the first screen thereby causing the wood chips deposited on the first screen from the hopper to be sorted into the three groups: Those too large to pass through the first screen; those which passed through the first screen but not the second screen; and those which passed through both the first and second screen. The apparatus may include a third screen for sorting wood chips into four groups.
摘要翻译： 根据尺寸将木片或其他颗粒材料分成组的设备。 该装置包括具有敞开的顶部的壳体，安装到壳体上的基本上覆盖其敞开的顶部的第一屏幕，附接到第一屏幕下方的壳体的第二屏幕，以及固定地连接到壳体上用于保持一定数量的木材的漏斗 芯片和用于将木片放置到第一屏幕的大致中心上。 第一和第二屏幕从其中心向下倾斜，使得任何尺寸太大而不能通过的木片都将通过重力辅助到其周边。 第二屏幕中的开口小于第一屏幕中的开口，从而使从料斗上沉积在第一屏幕上的木片被分为三组：太大而不能通过第一屏幕; 那些通过第一屏而不是第二屏的; 以及通过第一和第二屏幕的那些。 该装置可以包括用于将木片分为四组的第三屏幕。
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