Apparatus for fluidized solid systems

摘要

Contacting apparatus chamber having a grid structure positioned therein, characterized by downwardly projecting frustoconic shaped nozzles, which extend below the lower face of the plate defining "dead spaces" in between the nozzles. The nozzle walls diverge at an angle no greater than 30 DEG and preferably at an angle of about 3 DEG to about 6 DEG , measured from the vertical axis of the nozzle. This grid structure permits smooth flow of materials through the grid thereby avoiding fouling of the grid.