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2. 发明授权

US4915830A Pulp wash press 失效
标题翻译：纸浆冲洗机
公开(公告)号：US4915830A
公开(公告)日：1990-04-10
申请号：US234430
申请日：1988-08-19
申请人： William D. Mackay , William L. Bohn
发明人： William D. Mackay , William L. Bohn
IPC分类号： B30B9/12 , D21C9/02
CPC分类号： B30B9/12 , B30B9/18 , D21C9/02
摘要： An elongated, imperforate housing (2) has a slurry inlet port (5) at one end and a pulp discharge port (6) at the other end. A pressing section (2b) within the housing is in direct fluid communication with the inlet port, and extracts liquid from the slurry by passing the slurry through a first compression restriction (108) to produce a pressed pulp. An annular washing section (2c) within the housing is positioned immediately downstream of, and in direct fluid communication with, the first compression restriction. The washing section has radially inner (109) and outer (14) cylindrical walls defining an annular washing chamber (110) for decompressing, diluting, and washing the pressed pulp. The washing is accomplished by injecting a washing liquid into the washing chamber through the inner wall, and simultaneously through the outer wall while the mixture is agitated. A repressing section (2d) within the housing is in direct fluid communication with the washing section, for receiving the conveyed mixture. The repressing section extracts the washing liquid from the mixture by passing the mixture through a second compression restriction (115) to produce a repressed pulp, which is then discharged through the discharge port. In a preferred embodiment, an additional, final pressing section (2e) is located between the repressing section and the discharge port, the final pressing section having a perforated, substantially cylindrical inner wall (116) formed in the screw shaft (3) and a deflection ring (49) defining an outer wall spaced from the inner wall.
摘要翻译：细长的无孔壳体（2）在一端具有浆料入口（5），另一端具有纸浆排出口（6）。壳体内的按压部分（2b）与入口直接流体连通，并且通过使浆料通过第一压缩限制（108）从浆料中提取液体以产生压制纸浆。壳体内的环形洗涤部分（2c）被定位成与第一压缩限制器紧密地直接流体连通。洗涤部具有径向内部（109）和外部（14）圆柱形壁，其限定用于减压，稀释和洗涤压制纸浆的环形洗涤室（110）。洗涤通过将清洗液通过内壁注入洗涤室中，同时通过外壁同时搅拌混合物来实现。壳体内的压迫部分（2d）与洗涤部分直接流体连通，用于接收输送的混合物。抑制部分通过使混合物通过第二压缩限制（115）从混合物中提取洗涤液，以产生压制纸浆，然后通过排出口排出。在优选实施例中，另外的最终按压部分（2e）位于压迫部分和排出口之间，最终按压部分具有形成在螺杆轴（3）中的穿孔的基本上圆柱形的内壁（116）和限定与内壁间隔开的外壁的偏转环（49）。

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