Digital holographic sizer for coal powder size ...
WEBNov 19, 2018 · A coal powder fluidizing device made of acrylic plate and screen mesh is applied to imitate the sampling process of the suction probe. The cavity made of acrylic plate stores coal powder and the screen meshes are employed to avoid leakage. Coal powder in the cavity is fluidized by a blower which blows from the bottom of the cavity.