The results show that output percentage and Newton classification efficiency of fine powder are increased with the increase of dispersion air velocity and cut size becomes bigger when the pre-disperse air velocity is larger than 1.1 m/s.

• 结果表明；当预分散气速大于1.；1 m/s时；细粉产率、牛顿分级效率和切割粒径随预分散气速的增大而增加;