Method and Apparatus for Rapid Particle Size and Mass Analysis.

摘要

The patent application describes a method and apparatus to practice the method for rapidly determining the size and mass distribution of a sample of randomly sized particles of a known total mass. A series of substantially identical hydrocyclones are connected by conduits to each other. By restricting the cross-sectional areas of these conduits to progressively smaller values, the slurry containing the sample particles is caused to increase its velocity as it moves from hydrocyclone to hydrocyclone. The largest sized particles are suspended in the closed apex of the first hydrocyclone with smaller sized particles, in given size ranges, being suspended in the next succeeding hydrocyclone's apexes. Attenuation of gamma radiation can be related to the mass or weight of the discrete fractions of suspended particles.