| 摘要 |
PCT No. PCT/AT87/00052 Sec. 371 Date Jul. 13, 1988 Sec. 102(e) Date Jul. 13, 1988 PCT Filed Sep. 16, 1987 PCT Pub. No. WO88/02044 PCT Pub. Date Mar. 24, 1988.The invention relates to an apparatus for the treatment of a material, in particular a web of material or pulp, made to pass between at least two endless permeable belts, in particular screen belts or the like conveying means, in particular for the displacement washing of a filter cake or for washing fibrous matter, the material being passed between the belts along at least one, in particular at least two containers serving for the supply or discharge of a treatment medium. The object is in particular to reduce the construction length of such apparatus and to bring about a particular increase of the washing effect or other treatment effect, and this if possible without applying a vacuum. This object is achieved according to the invention by providing, in particular for a countercurrent treatment, advantageously for a countercurrent displacement washing, for the belts with the material lodged therebetween to be made to pass in approximately horizontal loops or undulations, at least one of these loops or the like being passed around a container or at least two or more of these loops or the like being passed from below individually around two or more of the containers and over at least one reversing roller, compression roller, through press nips or the like which are provided on at least one container side, in the case of two or more containers between these containers.
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