PROCESS FOR CONTROLLING OR REGULATING THE PRESSURE OF A PRESS FOR SEPARATING SOLIDS AND LIQUIDS

摘要

In discontinuously functioning filter presses (1), a further increase of the pressing pressure is limited based on the course over time of the discharge behavior of the pressed-out liquid. The limiting times are determined with a process regulator (24) as those times at which momentary or average discharge capacities or discharge accelerations reach maximal values. Troublesome predeterminations of desired or empirical values can thus be avoided. The press operates in a process of self-optimization to the pressing pressures and to the times to which the pressure increase has to be limited, in view of the actual process parameters and objectives that are involved.