Abstract: Application of spin flash dryer developed and produced by Hebei Nuoda Chemical Equipment Co.,Ltd.to replace rotary cylinder dryer in drying process of barium carbonate was introduced.Through detailed analysis on investment,energy consumption,product quality,and environmental benefits,the conclusion was obtained:comparing with rotary cylinder dryer,spin flash dryer has the advantages,such as less investment,energy saving,better product quality,and smaller pollution,which provide a new drying way for barium carbonate production.Meanwhile,this equipment is suitable for drying other cake-type materials,such as strontium carbonate,barium sulfate,and calcium carbonate.It also has high application value for cake-type materials in other industries,such as metallurgical,chemical,pharmaceutical,and food.  