Abstract
Oversize particles (particle size 5.66-6.73mm) were charged in on a screen (opening 3.36mm) and shifted. One undersized particle was dropped on the oversize particles and the residence time was measured. This experiment was repeated about a thousand times and the residence time distribution was obtained. The diameters of undersized particles are 1.89, 2.30, 2.72 and 3.15mm.
This process belongs to a phenomenon termed “interparticle percolation” and was treated as a diffusion process. The time constants were proportional to the charge of the oversized particles to the fourth power. Futhermore, the time constants were proportional to the undersized particle diameter squared.
