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公开(公告)号：US3595038A
公开(公告)日：1971-07-27
申请号：US3595038D
申请日：1968-06-14
Applicant: SVENSKA CELLULOSA AB
Inventor： BERGHOLM CARL ARNE , ANKERSSON PER-ERIK , HELLERQVIST GUSTAF RUNE
IPC: D21C9/04
CPC classification number: D21C9/04
Abstract: In washing paper pulp or similar fibrous suspension the suspension is moved intermittently vertically through a column. In the dwell periods, washing liquid is forced through the fibrous suspension, and the resulting ''''extract'''' removed, in a generally horizontal direction through perforate screening members forming portions of the column.
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