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公开(公告)号：US5078275A
公开(公告)日：1992-01-07
申请号：US611627
申请日：1990-11-13
摘要： Apparatus for screening papermaking stock comprises two annular flat screening plates arranged in parallel spaced relation to form a screening chamber therebetween which is bounded on its outer periphery by a cylindrical wall, and wherein a rotor includes vane portions which extend into this screening chamber to agitate the stock so that particles of sufficiently small size can pass through the screening plates into annular compartments outside the screening plates from which they flow into a peripheral chamber having an outlet port. The screening chamber includes an annular space which is surrounded by the accepts chamber and is radially beyond the vane portions of the rotor wherein reject material collects for discharge through an outlet tube which extends through the accepts chamber to the outside of the apparatus. The apparatus as a whole comprises a main assembly which includes one of the screening plates and the rotor, and a subassembly which includes the other screening plate and can be removed from the main portion to expose the screening plates for replacement or other servicing.
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公开(公告)号：US4155839A
公开(公告)日：1979-05-22
申请号：US855157
申请日：1977-11-28
申请人： Peter Seifert , Derald R. Hatton , Terry L. Bliss
发明人： Peter Seifert , Derald R. Hatton , Terry L. Bliss
CPC分类号： D21B1/32 , B04C5/04 , D21B1/322 , D21D5/24 , Y02W30/646
摘要： A system and method for separating paper fibers from contaminants of lower specific gravities employ a reverse centrifugal cleaner wherein the inlet port is of substantially greater flow area than previously used or proposed for either normal or reverse centrifugal cleaning, each of the apex and base ports are of greater flow area than the inlet port, and the discharge flows are controlled to provide an accepts flow through the apex port which is less than the reject flow through the base port. The system provides substantial advantages over prior practice, particularly in the areas of both capital and operating costs, capacity, and cleaning efficiency in terms of the energy requirements for given tonnage of accepted fiber.
摘要翻译： 用于将纸纤维与较低比重的污染物分离的系统和方法采用反向离心清洁器，其中入口端口具有比先前使用的或建议用于正常或反向离心清洗的流动面积大得多的顶点和底部端口中的每一个 具有比入口更大的流动面积，并且排放流量被控制以提供通过顶端口的接受流量，其小于通过基端口的排出流量。 该系统比以前的实践提供了显着的优点，特别是在给定吨位的可接受纤维的能量需求方面，资本和运营成本，能力和清洁效率方面。
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公开(公告)号：US5591336A
公开(公告)日：1997-01-07
申请号：US333206
申请日：1994-11-02
申请人： Peter Seifert , David E. Chupka , Terry L. Bliss
发明人： Peter Seifert , David E. Chupka , Terry L. Bliss
摘要： Improved apparatus for dewatering or washing a suspension of paper pulp in which first and second rolls are rotatably mounted with an endless loop of wire tensioned around the rolls, and in which a headbox delivers a pulp suspension to be thickened or washed and positioned with an outlet to discharge the pulp suspension into or onto the wire as it approaches the first roll, and in which the washed or dewatered pulp is collected after it has passed between the wire and a second roll, in which the first roll has a central shaft, and screw flighting on the shaft formed in left and right-hand sections are terminated at cylindrical discs mounted at opposite ends of the shaft, and in which the screw flighting has a depth which is substantially greater than the maximum thickness of the pulp layer and in which the aggregate open area between the screw flights is substantially greater than the cross-sectional area of the headbox outlet to assure that the spaces between the flights can be no more than partially filled with a pulp suspension during operation.
摘要翻译： 改进的用于对纸浆悬浮液进行脱水或洗涤的装置，其中第一和第二辊可旋转地安装有围绕辊子张紧的钢丝绳的环形环，并且其中流浆箱输送纸浆悬浮液以加厚或洗涤并定位成具有出口 当纸浆悬浮液接近第一辊时将纸浆悬浮液排放到丝网中，并且其中洗涤或脱水的纸浆在其经过线和第二辊之后被收集，其中第一辊具有中心轴，并且 在左侧和右侧部分形成的轴上的螺旋排出在安装在轴的相对端处的圆柱形盘端部终止，并且其中螺旋排出的深度基本上大于纸浆层的最大厚度，其中 螺杆飞行之间的总开口面积显着大于流浆箱出口的横截面面积，以确保飞行之间的空间可以不是 e在操作期间部分地填充有纸浆悬浮液。
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公开(公告)号：US5021159A
公开(公告)日：1991-06-04
申请号：US229673
申请日：1988-08-08
摘要： In apparatus for thickening a suspension of pulp material which includes an endless foraminous belt wrapping two spaced horizontally supported rolls, a special doctor mechanism is provided for transferring thickened pulp from the bare surface of the second roll into a trough mounted in the space bounded by the two rolls and the upper and lower runs of the belt. More specifically, the doctor mechanism includes a rigid doctor blade mounted with its working edge in close but spaced relation with the bare surface of the roll to remove pulp therefrom without contact with the roll surface. Provision is also made for periodically oscillating the blade about a horizontal axis to move its working edge away from and back to its closely spaced working relation with the roll.
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公开(公告)号：US5384014A
公开(公告)日：1995-01-24
申请号：US649231
申请日：1991-01-29
申请人： Terry L. Bliss
发明人： Terry L. Bliss
CPC分类号： D21C9/18
摘要： Apparatus and method for thickening a suspension of solid particles in liquid employs three rolls ranged in spaced relation with their axes defining a triangle, and a single loop of wire is trained around and in wrapping relation with all three rolls. With one exception, each of the rolls has in combination therewith a headbox which delivers a flow of the suspension to be thickened in such manner that it is trapped between the wire and the portion of the roll wrapped by the wire so that the trapped suspension is dewatered and concentrated by expression of liquid through the wire. The pulp deposited on the inside of the wire at each of the stations comprising a roll and headbox is ultimately collected from the surface of the one roll having no headbox and is transported out from within the space within the wire loop. In one embodiment, the roll at each roll-headbox station has a grooved surface such that it forms separate strips of pulp on the wire, and the next roll downstream therefrom has a similar grooved surface offset axially from the preceding roll so that it causes strips of pulp to be deposited on the wire between the strips produced by the previous roll. In another embodiment, each of the rolls having an associated headbox is of the open faced type so that the layer of pulp deposited thereby on the wire is essentially continuous across the wire, and the successive open faced rolls thus lay successive uniform layers of pulp on the wire.
摘要翻译： 用于使液体中的固体颗粒悬浮液增稠的装置和方法采用三个辊，其间隔与其限定三角形的轴线间隔开，并且围绕并围绕所有三个辊缠绕单个线圈。 除了一个例外，每个辊具有一个流浆箱，该流浆箱以这样的方式输送要加厚的悬浮液的流动，使得它被捕获在线和由线缠绕的辊的部分之间，使得被捕获的悬浮液 通过液体通过丝线脱水和浓缩。 在包括辊和流浆箱的每个站处沉积在电线内部的纸浆最终从没有流浆箱的一个辊的表面收集，并且在线环内的空间内被输出。 在一个实施例中，在每个辊流浆箱站处的辊具有带槽的表面，使得其在线上形成分离的纸浆条，并且其下游的下一个辊具有与前一个辊轴向偏移的相似的槽表面，使得其产生带 的纸浆沉积在由前一卷产生的条带之间的线上。 在另一个实施例中，具有相关联的流浆箱的每个辊是敞开式的，使得由此沉积在钢丝上的纸浆层基本上在钢丝上是连续的，并且连续的敞开的辊因此在辊上连续均匀的纸浆层 电线。
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公开(公告)号：US4564443A
公开(公告)日：1986-01-14
申请号：US728164
申请日：1985-04-30
申请人： Terry L. Bliss
发明人： Terry L. Bliss
摘要： A system for separating paper fibers from contaminants of similar lower specific gravities employs a reverse centrifugal cleaner wherein the discharge port for lights (reject) is located at the apex of the internally conical cleaner body and is formed by a tube which has it inner end located in the open apex end of the cleaner body and of smaller diameter to define with the end of the body an annular discharge outlet for heavies (accepts), the tube being releasably secured in position so that it can be temporarily retracted to relieve blockage of the heavies outlet.
摘要翻译： 用于将纸纤维与类似的较低比重的污染物分离的系统采用反向离心清洁器，其中用于灯（排出物）的排出口位于内圆锥形清洁器主体的顶点处，并且由其内端定位的管形成 在清洁器主体的开口顶端，并且较小直径以与主体端部一起形成用于重物（接受）的环形排出口，该管可释放地固定就位，使得其可以暂时缩回以减轻 重物出口
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