To meet the needs of reactor design for calcium carbide production by the oxygen fuel method, a solid particle distribution device involving a stirred tank with two different kinds of blades and distribution plates has been designed. A coldmodel experimental system was set up to investigate the influence of different bed heights, rotation speeds of blades, distances from the blade to the distribution plate, and different kinds of particles (glass beads and catalyst particles) on the average mass flux through plate. The results show that the mass flux increases with increasing bed height and rotation speed of the blade, whereas with an increase in distance between the blade and the distribution plates, the mass flux decreases sharply. The glass beads exhibit a larger mass flux than the catalyst particles. Using a flat blade rather than an oblique one or a distribution plate with more holes, leads to far greater mass fluxes.