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公开(公告)号：US5971160A
公开(公告)日：1999-10-26
申请号：US97222
申请日：1998-06-12
CPC分类号： D21D5/16
摘要： A support structure for thin screenplates utilized for fine screens in Fibresaving applications for pulp fiber suspensions or the like wherein a support structure having a screen support in minimum screen contact positioned by a support reinforcement and positioning device, assembled to form an integral structure which reduces the stresses and deflections in the thin screenplates occurring in operation.
摘要翻译： 用于薄纸板的支撑结构用于纸浆纤维悬浮液等的纤维布应用中的精细筛网，其中具有通过支撑加强件和定位装置定位的最小屏幕接触中的筛网支撑的支撑结构，以形成整体结构， 在操作中发生薄板的应力和偏转。
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公开(公告)号：US5823355A
公开(公告)日：1998-10-20
申请号：US412796
申请日：1995-03-29
CPC分类号： D21D5/16
摘要： A support structure for thin screenplates utilized for fine screens in Fibresaving applications for pulp fiber suspensions or the like wherein a support structure having a screen support in minimum screen contact positioned by a support reinforcement and positioning device, assembled to form an integral structure which reduces the stresses and deflections in the thin screenplates occurring in operation.
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公开(公告)号：US5497886A
公开(公告)日：1996-03-12
申请号：US46319
申请日：1993-04-15
CPC分类号： D21D5/026 , B01D29/356 , B07B1/20 , B01D2201/184 , B01D2201/287
摘要： A hydrodynamic device for generating negative pressure excursions in a pulp slurry during fine screening, includes a plurality of half-foil members disposed on a substantially cylindrical outer surface of a rotor. The rotor is mounted within and co-axial with a substantially cylindrical screen having a circumferentially continuous apertured zone to define an annular screening chamber between the rotor and the screen. The half-foil members are collectively at least axially co-extensive with the apertured zone and have a leading edge which, also collectively, is inclined at a spiral angle relative to the axis of the rotor such that during rotation, the collective leading edge of the half-foil members conduct large particles downwardly through the screening chamber. A selection of hydrodynamic foil configurations is provided in order to adapt to a wide range of pulp types and screening conditions.
摘要翻译： 一种用于在精细筛选期间在纸浆中产生负压偏移的流体动力装置包括设置在转子的基本上圆柱形的外表面上的多个半箔构件。 转子与具有周向连续有孔区域的基本上圆柱形的筛网安装在同轴的内部，以在转子和筛网之间限定环形筛分室。 半箔构件集体地与有孔区域至少轴向共同延伸并且具有前缘，其也总体相对于转子的轴线以螺旋角度倾斜，使得在旋转期间，集合前缘 半箔构件将大颗粒向下传送通过筛分室。 提供了一系列流体动力学箔结构，以适应各种纸浆类型和筛选条件。
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4.发明授权Apparatus for screening to remove knots from a fluid borne slurry of fibers and knots 失效用于筛选从流体絮凝纤维和絮凝液中除去脱模剂的装置
公开(公告)号：US5143220A
公开(公告)日：1992-09-01
申请号：US610696
申请日：1990-11-08
摘要： A screening apparatus removes a fluid borne pulp fiber slurry from knots which have been concentrated from a pulp processing stream. A rotating radially symmetrical screen provides centrifugal screening to accept a pulp fiber slurry while an integrally connected spiral flight conveyor transports knots from the inner surface of the screen to a knot discharge chamber located axially above the screening chamber. Above the screening chamber but below the liquid level in the housing, a fiber free wash liquor is provided through a tangentially oriented nozzle in the direction of rotation of the spiral flight conveyor to release fibers from the knot surfaces thereby enabling them to pass through the screen. The screening apparatus also provides for removal of heavy tramp materials, for maintaining liquid level control, for minimizing air entrainment and foam formation, and for preventing clogging of the screen apertures and knot discharge outlet.
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公开(公告)号：US5609729A
公开(公告)日：1997-03-11
申请号：US396095
申请日：1995-02-28
摘要： A screen aperture blinding prevention and liquid overflow prevention and level control apparatus for a knot drainer senses liquid level within the knot drainer and compares the sensed level to a setpoint level. Differences in the two levels generate control signals of appropriate magnitude and direction, and those control signals are transmitted to a valve whose degree of responsiveness and openness is adjusted to change the outflow rate of accepts liquor from the accepts chamber of the rejects separator. In addition, passive level control is provided in the discharge line for establishing accept flooded screen apertures regardless of variations of inflow and outflow rates during operation while active level control to create accept flow rate greater than, less than, or equal to inlet flow rate is provided by the combination of siphonic loop, barometric leg and control values for accepts outflow and for backwash nozzle flow. Continuous flow of fiber and liquid through separating screen apertures is appropriately supervised by monitoring accepts chamber pressure.
摘要翻译： 用于结排水器的屏幕孔径防盲和液体溢出防止和液位控制装置感测结排水器内的液位，并将感测到的水平与设定值水平进行比较。 两级的差异产生适当大小和方向的控制信号，并将那些控制信号传送到一个阀门，该阀门的响应性和开放程度被调整，以改变接收液体从废料分离器的容纳室的流出速率。 此外，在排放管线中提供无源水平控制，用于建立接受溢流的筛孔，而不管运行期间的流入和流出速率的变化，而主动水平控制以创建大于，小于或等于入口流量的接受流量 由虹吸环，气压腿和控制值的组合提供，用于接受流出和反冲洗喷嘴流。 通过分离筛孔连续流动纤维和液体通过监测接受室压力进行适当监督。
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公开(公告)号：US5307939A
公开(公告)日：1994-05-03
申请号：US912462
申请日：1992-07-13
申请人： Douglas L. G. Young , Oscar Luthi
发明人： Douglas L. G. Young , Oscar Luthi
CPC分类号： D21D5/026 , B01D29/356 , B07B1/20 , B01D2201/184 , B01D2201/287
摘要： A hydrodynamic device for generating negative pressure excursions in a pulp slurry during fine screening, includes at least one half-foil member disposed on a substantially cylindrical outer surface of a rotor. The rotor is mounted within and co-axial with a substantially cylindrical screen having a circumferentially continuous apertured zone to define an annular screening chamber between the rotor and the screen. The half-foil member is collectively at least axially co-extensive with the apertured zone and has a leading edge which, also collectively, is inclined at a spiral angle relative to the axis of the rotor such that, in one embodiment, during rotation, the leading edge of the half-foil member conducts large particles downwardly through the screening chamber. A selection of hydrodynamic foil configurations is provided in order to adapt to a wide range of pulp types and screening conditions.
摘要翻译： 一种用于在精细筛选期间在纸浆中产生负压偏移的流体动力装置包括设置在转子的基本上圆柱形的外表面上的至少一个半箔构件。 转子与具有周向连续有孔区域的基本上圆柱形的筛网安装在同轴的内部，以在转子和筛网之间限定环形筛分室。 所述半箔构件至少与所述有孔区轴向共同延伸，并且具有前缘，所述前缘也总体上相对于所述转子的轴线以螺旋角倾斜，使得在一个实施例中，在旋转期间， 半箔构件的前缘将大颗粒向下传导通过筛分室。 提供了一系列流体动力学箔结构，以适应各种纸浆类型和筛选条件。
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公开(公告)号：US3948300A
公开(公告)日：1976-04-06
申请号：US517894
申请日：1974-10-25
申请人： Douglas L. G. Young
发明人： Douglas L. G. Young
摘要： Log debarking apparatus comprising a rotatable drum and a downwardly sloping feed chute for feeding logs into the inlet end of the drum. The drum is provided with anvil means located to prevent logs from being carried circumferentially around the drum by its rotation and carries debarking tools adapted to apply hammer-like impact blows to logs in the drum, the anvil means controlling the velocity circumferentially of the drum at which logs are supplied to such debarking tools. Adjacent to its inlet end, the drum carries a plurality of arcuately spaced apart vanes, each extending for only a minor portion of the length of the drum, which serve to control the velocity of logs supplied into the drum and cooperate with the anvil means to provide proper orientation of such supplied logs.
摘要翻译： 日志去皮设备包括可旋转滚筒和向下倾斜的进给滑槽，用于将料斗送入滚筒的入口端。 滚筒设置有砧座，其设置成防止原木通过其旋转而围绕滚筒周向承载，并且携带用于对滚筒中的原木施加锤式冲击冲击的剥皮工具，砧座装置控制滚筒周向的速度 哪些日志被提供给这样的剥皮工具。 鼓在其入口端附近承载多个弧形间隔开的叶片，每个叶片仅延伸至滚筒长度的较小部分，其用于控制提供到滚筒中的原木的速度并与砧座装置配合 提供此类供应日志的正确方向。
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公开(公告)号：US4222863A
公开(公告)日：1980-09-16
申请号：US5368
申请日：1979-01-22
申请人： Douglas L. G. Young
发明人： Douglas L. G. Young
CPC分类号： B01D29/115
摘要： A pressurized screening apparatus removes both bouyant contaminants and denser contaminants from a liquid suspension containing desirable fibers and contaminants. Both the undesirable bouyant contaminants and the undesirable denser contaminants are accumulated in the same section of the pressurized screening apparatus. If desired, the accumulating bouyant contaminants and denser contaminants may be intermittently removed from the pressurized screening apparatus.
摘要翻译： 加压筛选装置从含有所需纤维和污染物的液体悬浮液中除去污染物和致密污染物。 不良的杂质污染物和不期望的更密集的污染物都积聚在加压筛选装置的同一部分中。 如果需要，可以从加压筛分装置间歇地除去积聚的杂质污染物和更致密的污染物。
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9.发明授权Junk separator for, and in combination wtih, a pulp slurry inlet chamber of a pulp handling machine 失效用于纸浆处理机的纸浆浆料入口室和组合的垃圾分离器
公开(公告)号：US5397469A
公开(公告)日：1995-03-14
申请号：US69814
申请日：1993-06-01
申请人： Douglas L. G. Young
发明人： Douglas L. G. Young
IPC分类号： B01D21/26
CPC分类号： B01D21/267
摘要： In the floor of a pulp slurry inlet chamber an opening is provided. The opening is elongate and arranged substantially tangential to the outer, bounding wall of the chamber. Barriers of arcuate cross-section depend from the opening, at opposite ends of the opening. The barriers are incurvate, relative to the opening. The opening has a length across which junk cannot bridge. Consequently, the junk falls through the opening and is captured in an accumulator which underlies the opening. Knots substantially bridge across the opening, and impinge upon the arcuate barrier at the far end of the opening to be thrown upwardly for assimilation with the slurry flow coursing through the chamber. An elutriative liquid is supplied to the accumulator, at a given flow velocity, to wash up and out of the accumulator any organic particles which, due to irregularities, pass through the opening, to return the organic particles to the chamber.
摘要翻译： 在纸浆浆入口室的地板中设置有开口。 开口是细长的并且基本上与腔室的外部边界壁相切地布置。 弧形横截面的障碍取决于开口的两端。 相对于开放，这些障碍是固有的。 开放有一个长度，垃圾无法桥接。 因此，垃圾通过开口落下并被捕获在位于开口下面的蓄能器中。 结基本跨越开口，并且撞击在开口的远端处的弓形屏障，以被向上抛出，以便通过穿过室的浆料流同化。 向蓄液器中以给定的流速向洗涤液中提供洗涤液体，以便将蓄积器中的任何有机颗粒冲洗出来，这些有机颗粒由于凹凸而穿过开口，以将有机颗粒返回到室中。
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公开(公告)号：US5341936A
公开(公告)日：1994-08-30
申请号：US89532
申请日：1993-07-12
申请人： Douglas L. G. Young
发明人： Douglas L. G. Young
摘要： A hydrofoil in close proximity to an outboard surface of a rotatable slurry screen, and a hydrofoil in close proximity to an inboard surface of the screen, cooperate to create high and low slurry pressures at the surfaces which result in causing the slurry to surge through the screen to backwash the latter, thereby dislodging slurry-borne substances which tend to clog apertures in the screen.
摘要翻译： 靠近可旋转泥浆筛网的外侧表面的水翼和靠近筛网内侧表面的水翼协作以在表面产生高和低的浆料压力，这导致浆料通过 筛网以反洗后者，从而移除倾向于堵塞筛网中的孔的淤浆传播物质。
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