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1. 发明授权

US5547083A Apparatus for treating fiber suspension 失效
标题翻译：纤维悬浮液处理装置
公开(公告)号：US5547083A
公开(公告)日：1996-08-20
申请号：US318719
申请日：1994-10-13
申请人： Timo Alajaaski , Kalevi Laakso , Antero Laine , Risto Ljokkoi
发明人： Timo Alajaaski , Kalevi Laakso , Antero Laine , Risto Ljokkoi
IPC分类号： B01D29/25 , B01D29/11 , B01D33/06 , B01D36/04 , B07B1/20 , B07B1/24 , D21D5/02 , D21D5/06 , D21D5/16 , B07B1/04
CPC分类号： D21D5/026 , B01D29/118 , B01D36/045
摘要： An apparatus for screening and thickening cellulose pulp keeps cleaner than conventional apparatus. Pulse members in accordance with the prior art are constructed so that when the capacity of the screening apparatus is increased, for example by using greater pressure differences or the cleanliness of the accept is increased by decreasing the size of the perforations or slots, a situation is created in which the screen cylinder tends to clog. The pulse member of the present screening apparatus subjects the screen cylinder or screen surface to a pulse cleaning action so that there is a minimal possibility to allow the pressure effect to "escape" past the area being cleaned. The higher the consistency of the fiber matting is or the worse the screen surface is clogged, the stronger the pulse cleaning of the screen surface.
摘要翻译： PCT No.PCT / FI93 / 00151 Sec。 371日期：1994年10月13日 102（e）日期1994年10月13日PCT提交1993年4月8日PCT公布。公开号WO93 / 22494 日期1993年11月11日用于筛选和增稠纤维素浆的设备比常规设备更干净。根据现有技术的脉冲构件被构造成使得当筛分装置的容量增加时，例如通过使用更大的压力差或通过减小穿孔或槽的尺寸来增加接受的清洁度，情况是造成屏幕滚筒倾向于堵塞。本筛选装置的脉冲构件使筛筒或筛面受到脉冲清洁作用，使得存在允许压力效应“逸出”超过待清洁区域的最小可能性。纤维消光的一致性越高，屏幕表面堵塞越严重，屏幕表面的脉冲清洁就越强烈。

2. 发明授权

US5575395A Method and apparatus for screening fibrous suspensions 失效
标题翻译：筛选纤维悬浮液的方法和装置
公开(公告)号：US5575395A
公开(公告)日：1996-11-19
申请号：US275343
申请日：1994-07-15
申请人： Timo Alajaaski , Kaj Henricson , Kalevi Laakso , Antero Laine , Risto Ljokkoi , Olavi Pikka , Markku Simola , Pertti Wathen
发明人： Timo Alajaaski , Kaj Henricson , Kalevi Laakso , Antero Laine , Risto Ljokkoi , Olavi Pikka , Markku Simola , Pertti Wathen
IPC分类号： D21D5/00 , D21D5/02 , B03B7/00
CPC分类号： D21D5/026 , D21D5/00
摘要： A fiber suspension, such as an in a pulp mill, is treated in an manner which minimizes both the investment and the operating costs associated with a screening plant. A single pump has an outlet connected to a knotter and primary and secondary screening states so that the pump provides substantially the sole motive force to the pulp moving it through the knotter and screening stages. The knotter and screening stages are provided in a common housing with the knotter vertically above the screening stages, and the screening stages one above the other. A single motor may be provided to rotate rotatable elements associated with the knotter and screening stages. The knotter may be connected to a knot washer external of the housing by a valved conduit less than two meters in length, and the secondary screening stage can be connected to a tertiary screening stage exterior of the housing by a valved conduit less than two meters long. Rejects from the knot washer and secondary screening stage may be recycled to the pulp inlet, and dilution water may be introduced where necessary.
摘要翻译：纤维悬浮液，例如在纸浆厂中，以最小化与筛选设备相关的投资和操作成本的方式进行处理。单个泵具有连接到打结器和主要和次要筛选状态的出口，使得泵基本上为通过打结器和筛选阶段将纸浆移动的纸浆提供唯一的动力。打结器和筛选阶段提供在公共壳体中，打结器垂直地位于筛选阶段上方，筛选阶段一个在另一个之上。可以提供单个电动机以旋转与打结器和筛选阶段相关联的可旋转元件。打结器可以通过长度不超过两米的阀门导管连接到外壳外部的结垫圈，并且二次筛分阶段可以通过小于两米长的阀门导管连接到壳体外部的三级筛分台。结节垫和二次筛分阶段的拒绝可以再循环到纸浆入口，并且必要时可以引入稀释水。

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