| 摘要 |
<p>The invention relates to a continuous-working process and apparatus for replacing the liquid in a liquid suspension of a fibrous material with another liquid by forming of this material a bed (32) on a moving filter surface and by displacing the liquid present in this bed with the other liquid. The bed (32) of material is formed on a cylindrical filter surface (7) installed in a vertical orientation below the liquid surface in a container (14) and conveys it continuously forward for filtration and several successive liquid displacements effected by maintaining a hydrostatic pressure difference across the formed bed (32), which is conveyed continuously horizontally forward, and through it there flow liquids horizontally during the filtration and liquid displacement.</p> |
