Method of discharging material from the bottom of the extraction tower
Thread Content
Methods of discharging material from the bottom of an extraction tower: 1. Discharge directly through the pipeline at the tower bottom; 2. Add an overflow pipeline at the tower bottom (the discharge pipeline bends upward to reach the level of the tower interface, and then the material overflows to other equipment). Please explain under what circumstances the second method is chosen, and whether it is related to the considerations regarding interruption of flow in the extraction tower during normal operation
For a sieve plate extractor operating under conditions where the heavy phase is the dispersed phase and the light phase is the continuous phase, the second method is chosen. The purpose of this is to allow the droplets of the heavy phase that descend from the pores of the lowest sieve plate and become dispersed in the continuous light phase to gradually aggregate as they move downward in the reactor bottom, thereby forming a boundary between the light and heavy phases, and to prevent the light phase from being carried out of the tower along with those droplets.