The FX series coal slime concentration and classification cyclone from Haiwang Company adopts fresh new cyclone structure so as to improve the classification efficiency and classification accuracy of hydrocyclone, which can adjust the dimension of vortex finder and apex conveniently by the request of cut size or concentration with the features of eash assembly, commissioning, maintenance and replacement. Meanwhile, it is usually used by parallelly combining with cyclone of same specification, working as a group.