| 摘要 |
<p>In discontinuously operating filter presses, a further rise in the pressure owing to the time cycle of the discharge behaviour of the liquid pressed out is limited. The discharge (Q) of the liquid phase from the press (1) is directly or indirectly measured, and that from the course over time of the discharge behavior (Q) of this phase, an instant (t3, t5, t6, t7, t8) is determined at which the further pressure increase (P) is limited to a constant value (P3, P3.1, P4), wherein for each pressing cycle, this instant lies within a time interval which starts at the beginning of discharge (Q) and which ends after a certain length of time, which is equal to twice the length of time between the beginning of discharge (t3) and the onset (t6) of maximal average flow capacity ((Q/t)max) of the liquid phase.</p> |
