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1.发明授权Reducing wax content and enhancing quality of recycled pulp from OCC and waste paper 失效从OCC和废纸中降低蜡含量并提高回收纸浆的质量
公开(公告)号：US6053439A
公开(公告)日：2000-04-25
申请号：US908988
申请日：1997-08-08
CPC分类号： D21D5/026 , D21B1/32 , Y02W30/646
摘要： A system and method for treating a waxed fiber paper product with a high wax content to remove a substantial portion of the wax content includes the pulping of the wax paper fiber at an elevated temperature in excess of the melting temperature of the wax to separate a pulp fraction and to form an emulsion of water and molten wax. The pulp fraction is separated from the emulsion by filtering in a reverse pressure screen in which a finely perforated screen defines a high pressure side and a low pressure side, and a major portion of the water/emulsion is removed from the suspension through the screen perforations leading from the high pressure side to the low pressure side, in which a rotor and foil arrangement within the reverse screen is operated under such conditions that the suspension at the high pressure side of the screen is maintained in a constant fluidized condition.
摘要翻译： 用于处理具有高蜡含量的蜡纤维纸产品以除去蜡部分的大部分的系统和方法包括在超过蜡的熔融温度的升高的温度下制蜡纸纤维以分离纸浆 并形成水和熔融蜡的乳液。 通过在其中精细穿孔的筛网限定高压侧和低压侧的反压筛中过滤将纸浆级分与乳液分离，并且大部分水/乳液通过筛孔从悬浮液中除去 从高压侧到低压侧，其中反转屏幕内的转子和箔布置在这样的条件下操作，即在屏幕的高压侧的悬浮液保持在恒定的流化状态。
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公开(公告)号：US5234172A
公开(公告)日：1993-08-10
申请号：US649104
申请日：1991-02-01
CPC分类号： D21F7/04 , Y10T83/0591 , Y10T83/364
摘要： A cutter for comminuting a moving continuous sheet or web, such as paper broke, in the dryer or converter section of a papermaking machine, includes a plurality of high pressure water jet cutting nozzles positioned in a conduit section for receiving such broke from the papermaking machine. In one embodiment the nozzles are arranged in banks positioned to impact the sheet as it passes through the conduit section, from opposite sides, and are mounted on water conduits which, in turn, are mounted for reciprocating movement and are oscillated transversely of the direction of sheet movement by a mechanical drive. The cutting jets from the high pressure nozzles impact the sheet simultaneously at opposite sides, while being reciprocated to reduce the sheet into a multiplicity of smaller discrete or easily separable pieces which fall through the bottom of the conduit section, for further processing or disposal. The nozzles may be directed at an angle to the direction of sheet movement, so as to impart a force component tending to pull the sheet through the conduit section. In another embodiment, an open face roll forms a backing support for the sheet and a mutually reciprocating pair of nozzle banks have cutting jet sprays directed against and through the sheet supported on the open face roll.
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公开(公告)号：US5022984A
公开(公告)日：1991-06-11
申请号：US486477
申请日：1990-02-28
CPC分类号： B03D1/028 , B03D1/082 , B03D1/1406 , B03D1/1412 , B03D1/1456 , B03D1/1462 , B03D1/1493 , D21B1/327 , D21F1/70 , Y02W30/646
摘要： Apparatus for separating contaminant particles from liquid suspension stock, e.g. in the de-inking of used news print, is characterized by one or more of a plurality of features which contribute to increasing the capacity and effectiveness of the apparatus, including the provision of a cell comprising inner and outer annular chambers of substantially equal depth with the inlet and outlet connections for the stock being located adjacent the bottoms of the two chambers to force the stock to travel through the full depth of each chamber, and also the provision of a baffle of substantial width on the top of the wall between the two chambers to spread the stock overflowing that wall into a thin film. Other features include the use of an explosion-type flowbox to aerate the stock as it is delivered to froth flotation apparatus, and the provision of a variety of alternative constructions for spreading aerated grey stock into a film and causing that film to flow a substantial distance in a substantially horizontal plane in order to minimize the distance for travel of bubbles in the stock to the top of the film and thereby to expedite the resulting formation of a layer of froth at top of the film.
摘要翻译： 用于将污染物颗粒与液体悬浮液料分离的装置，例如 在使用新闻印刷品的脱墨中，其特征在于有助于提高装置的容量和有效性的多个特征中的一个或多个，包括提供包括基本相同深度的内外环形室的电池， 原料的入口和出口连接位于两个室的底部附近，以迫使原料行进通过每个室的整个深度，并且还在两个室之间的壁顶上设置相当宽度的挡板 房间将股票溢出到薄膜上。 其他特征包括使用爆炸型流动箱将其输送到泡沫浮选装置时将原料充气，以及提供各种替代结构，用于将充气灰色原料分散到膜中并使该膜流动相当长的距离 在基本上水平的平面中，以便最小化坯料中气泡到膜顶部的行进距离，从而加速在膜的顶部形成泡沫层。
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公开(公告)号：US5064537A
公开(公告)日：1991-11-12
申请号：US450873
申请日：1989-12-14
IPC分类号： B01D29/11 , B01D39/10 , B07B1/18 , B07B1/46 , B23K26/00 , B23K26/36 , B23K26/38 , B23K31/02 , D21D5/16
CPC分类号： B23K26/0057 , B01D29/111 , B23K26/364 , B23K26/384 , B23K31/025 , D21D5/16 , Y10T29/49604
摘要： Screen cylinders, and methods of making the same for use in removing contaminant particles from papermaking stock, have a seamless cylinder body and the openings or slots therethrough are formed by directing a focused laser beam at an outer surface while focusing the beam intermediate the outer an dinner surfaces to form an opening or slot with tapered walls. Wear bars may be applied to the inside surface as a bead of weld material. The seamless cylindrical body is formed by centrifugal casting or by cold roller extrusion.
摘要翻译： 丝网滚筒以及用于从造纸原料中除去污染物颗粒的方法，具有无缝筒体，并且通过将聚焦的激光束引导到外表面而形成开口或槽，同时将光束聚焦在外侧的光束 晚餐表面形成具有锥形壁的开口或槽。 耐磨条可以作为焊接材料的小珠施加到内表面。 无缝圆柱体通过离心铸造或通过冷辊挤压形成。
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公开(公告)号：US06193073B1
公开(公告)日：2001-02-27
申请号：US09130412
申请日：1998-08-06
IPC分类号： B07B150
CPC分类号： D21D5/026 , B01D29/356 , B01D29/86
摘要： Pressure screening apparatus for screening a suspension of paper fiber stock employs a rotor in which a single impulse or foil member is carried or positioned to move along a discrete portion of the screen surface. This arrangement improves efficiency of operation of the pressure screen by reducing the rotational effect of the rotor on the stock suspension being screened and by providing a less disturbed screening region through which the single foil operates. Embodiments are shown in which multiple single impulse elements sweep over discrete portions of a screen and in which a single foil is combined, in screening apparatus, with multiple foils in accordance with the increase in consistency of the stock as it passes through the screen.
摘要翻译： 用于筛选纸纤维原料悬浮液的压力筛选装置采用转子，其中单个脉冲或箔片构件被携带或定位成沿着筛网表面的离散部分移动。 这种布置通过减少被筛选的原料悬浮液上的转子的旋转效果，并且通过提供较少的扰动的单个箔片操作的筛选区域来提高压力筛的操作效率。 示出了实施例，其中多个单个脉冲元件扫过屏幕的离散部分，并且其中单个箔片在筛选设备中与多个箔片组合，这是随着原料在通过筛网时的稠度的一致性的增加。
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公开(公告)号：US5582686A
公开(公告)日：1996-12-10
申请号：US093531
申请日：1993-07-16
CPC分类号： D21F7/04 , Y10T83/0591 , Y10T83/364
摘要： Broke handling and reducing apparatus and method for comminuting a moving continuous sheet or web material such as paper broke in the dryer or converter section of a papermaking machine, includes a plurality of high pressure water jet cutting nozzles mounted in spaced-apart relation transversely to the direction of movement of the material and are mounted so as to direct high pressure cutting jets into the path of movement. The nozzles are mounted so that at least some of the nozzles are cyclically moved with respect to others of said nozzles to form a plurality of mutually intersecting jet cutter paths to reduce the material into a multiplicity of smaller discrete or easily separable pieces.
摘要翻译： 破碎处理和还原装置和方法，用于粉碎移动的连续片材或网状材料，例如在造纸机的干燥器或转炉部分中破碎的纸张，包括多个高压水射流切割喷嘴，其间隔开的关系横向于 材料的运动方向并被安装成将高压切割喷嘴引导到运动路径中。 喷嘴被安装成使得至少一些喷嘴相对于其他喷嘴循环地移动以形成多个相互相交的喷射切割器路径，以将材料减少成多个更小的离散或易于分离的碎片。
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