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1. 发明申请

WO1981000359A1 METHOD AND FILTER FOR SEPARATING FILTERABLE PARTICLES FROM A LIQUID SUSPENSION 审中-公开
标题翻译：从液体悬浮液中分离可过滤的颗粒的方法和过滤器
公开(公告)号：WO1981000359A1
公开(公告)日：1981-02-19
申请号：PCT/SE1980000205
申请日：1980-08-13
申请人： HEDEMORA VERKSTAEDER AB , RAGNEGARD S , DAHLLOEV B
发明人： HEDEMORA VERKSTAEDER AB
IPC分类号： B01D37/02
CPC分类号： D21D5/06 , B01D33/06 , B01D37/00 , B01D37/02
摘要： A method for separating filterable particle from a liquid suspension, e.g. white water cleaning for paper machines. Movable, cyclically operating filter elements are used, which in succession and repeatedly pass an operating cycle during which a layer containing the particles is successively built up on the filter elements under the influence of a pressure difference applied over these. From the beginning of each cycle a separate filtering medium, a so called sweetener, is applied on to the filter elements likewise under the action of the pressure difference. The pulp built up on the filter elements and consisting of the particles and said sweetener, the particle pulp, is removed from the filter elements during the end portion of the cycle. In order to obtain higher cleaning efficiency and higher capacity of the filters the liquid suspension is brought to pass successively through at least two steps (2, 4) of each one set (6, 8) of said cyclically operating filter elements, sweetener being introduced (10) to the last step (4) from outside and as sweetener for the preceding step (2) is introduced (24) the removed particle pulp from the following step (4).
摘要翻译：用于从液体悬浮液中分离可过滤颗粒的方法，例如白水清洗纸机。使用可移动的循环操作的过滤器元件，其连续地重复地通过操作循环，在该操作循环期间，在施加在这些上的压力差的影响下，将包含颗粒的层依次构建在过滤元件上。从每个循环的开始，同样在压力差的作用下，将单独的过滤介质，即所谓的增甜剂施加到过滤器元件上。在循环的结束部分期间，在过滤元件上堆积的纸浆由颗粒和所述甜味剂构成，颗粒纸浆从过滤元件中除去。为了获得更高的清洁效率和更高的过滤能力，液体悬浮液通过所述循环操作的过滤元件的每一组（6,8）的至少两个步骤（2,4）连续通过，所述甜味剂被引入（2）的甜味剂（24）从下一步骤（4）中引入（24）去除的颗粒纸浆（24）。

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