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公开(公告)号：US5662790A
公开(公告)日：1997-09-02
申请号：US539242
申请日：1995-10-04
CPC分类号： D21B1/327 , B03D1/14 , B03D1/1418 , B03D1/1425 , B03D1/24 , B03D1/082 , B03D1/1412 , B03D1/1462 , Y02W30/646
摘要： A deinking system for use with recycled paper pulp includes a number of gas sparged hydrocyclones mounted around the outer periphery of a foam separation vessel, with the slurry outlet from each hydrocyclone introducing slurry into the vessel below the level of liquid in the vessel, and above the accepts outlet from the bottom of the vessel. An annular trough is provided adjacent the top and outer periphery of the vessel, and has a bottom sloping to one or more drain outlets. The hydrocyclone discharge conduits into the vessel are tangential to cause bubble-releasing swirling of the slurry in the vessel. The cyclone preferably is pedestal-less, and has a single gas inlet, and a deflector within the annular air jacket of the hydrocyclone. At least one substantially conical substantially uniform back pressure generator may be disposed in the hydrocyclone slurry outlet, a foam conveyance and breaking device may be associated with the drain outlet from the trough, and a foam and rejects handling tank connected to the foam conveyance and breaking device and including a substantially spiral downwardly extending feed ramp may also be provided.
摘要翻译： 用于再生纸浆的脱墨系统包括安装在泡沫分离容器的外周周围的多个气体喷射水力旋流器，其中每个水力旋流器的浆料出口将浆料引入容器内的容器中的液体以下，以上 从容器底部接受出口。 在容器的顶部和外部周边附近提供环形槽，并且具有向一个或多个排出口倾斜的底部。 水力旋流器排放管道进入容器是切向的，导致容器中浆液的气泡释放漩涡。 旋风分离器优选是无底座的，并且具有单个气体入口和在水力旋流器的环形空气套内的偏转器。 至少一个基本上圆锥形的基本上均匀的背压发生器可以设置在水力旋流器浆料出口中，泡沫输送和断开装置可以与槽的排水出口相关联，并且泡沫和废物处理罐连接到泡沫输送和断裂 并且还可以提供包括大致螺旋形的向下延伸的进料斜坡。
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公开(公告)号：US5529190A
公开(公告)日：1996-06-25
申请号：US384795
申请日：1995-02-06
申请人： Keith A. Carlton , Mahendra R. Doshi , Todd A. Salvato , Erwin D. Funk , Joseph R. Phillips , Scott M. Clum
发明人： Keith A. Carlton , Mahendra R. Doshi , Todd A. Salvato , Erwin D. Funk , Joseph R. Phillips , Scott M. Clum
CPC分类号： D21B1/327 , B03D1/082 , B03D1/1418 , B03D1/1425 , B03D1/1456 , B03D1/1462 , B03D1/1493 , D21F1/70 , B03D1/028 , B03D1/1412 , B03D1/1475 , B03D1/245 , Y02W30/646
摘要： A slurry of recycled cellulose fibers is deinked by introducing the slurry into the first end of a vortex, sparging gas radially inwardly into the slurry to cause gas bubbles to attach to contaminants and ink particles to form an aerated slurry, discharging the aerated slurry from near the second end of the vortex into a separation vessel, effecting separation of a foam of ink laden gas bubbles from the cellulose fiber slurry in the separation vessel, and removing from the separation vessel the foam with associated ink and contaminants in a first stream, and de-inked cellulose fiber slurry in a second stream. The separation vessel is typically a foam separating vessel with separation effected by flotation, and by discharging the foam. The slurry is introduced into the flotation vessel below the liquid level in it. The slurry typically has a consistency of about 0.5-2%, and the gas to slurry volume ratio during sparging may be 0.1-1 to 1.0 (e.g. 0.2-0.7 to 1, or 0.3-0.4 to 1). The foam separating vessel may be cylindrical with a shower head at the top, and rejects therefrom directed to a rejects tank. Sparging takes place in a hydrocyclone with an outlet that may or may not be restricted; a rejects outlet may extend from a first end of the hydrocyclone to a rejects tank.
摘要翻译： 将回收的纤维素纤维的浆料通过将浆料引入涡流的第一端而脱墨，将气体径向向内喷入浆料中，使气泡附着到污染物和油墨颗粒上以形成充气浆料，将充气浆料从近处排出 涡流的第二端进入分离容器，从分离容器中的纤维素纤维浆液中分离出含有油墨的泡沫泡沫，并从分离容器中除去具有第一流中相关联的油墨和污染物的泡沫，以及 脱墨纤维素纤维浆料在第二条流中。 分离容器通常是具有通过浮选进行分离并通过排出泡沫的泡沫分离容器。 将浆料引入浮选槽内的液面下方。 浆料通常具有约0.5-2％的稠度，并且在鼓泡期间的气体与浆料体积比可以为0.1-1至1.0（例如0.2-0.7至1，或0.3至0.4:1）。 泡沫分离容器可以是圆柱形的，顶部具有淋浴喷头，并且从其排出而被引导到排污罐。 喷射发生在带有出口的水力旋流器中，可以或可能不受限制; 废品出口可以从水力旋流器的第一端延伸到排污罐。
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