SANDERSON NOZZLES

The original tangential nozzle utilized in digester blow tanks had not changed in design for nearly one hundred years until my father, Les Sanderson (a British trained mechanical engineer employed by Crown Zellerbach in the 1970's), was tasked with reducing the expensive annual cost of repairing damaged nozzles and blow tank walls. Damage to the blow tank was occurring with the release of energy as the pulp exited the nozzle and struck the walls, which was significantly exacerbated with low quality chips.