A sparger system for removing sodium chlorate crystal and other particulate material in slurry or solution form from a tank car comprises a plurality of spray nozzles from which water is expelled as a flat spray initially to dissolve sodium chlorate so as to cavitate the mass of sodium chlorate chlorate...http://www.google.com/patents/US5013530?utm_source=gb-gplus-sharePatent US5013530 - Sparger system for discharge of bulk material from hopper cars