GRAIN SIZE MEASURING METHOD AND GRAIN SIZE MEASURING APPARATUS FOR PARTICLES

摘要

PROBLEM TO BE SOLVED: To provide a method with which grains are prevented from being bonded by heat and a grain size of grains can be accurately measured in a sampling state.;SOLUTION: A particle size measuring method includes sampling a particle from a granulator under granulation work, cooling the sampled grain in a floating state with a rising revolving stream, imaging the cooled grain, and processing a captured image to calculate a grain size of the grain. As a sampling tube, preferably, a tube is used in which an opening edge of a lower end is formed to be inclined with respect to an axial direction of the sampling tube.;COPYRIGHT: (C)2012,JPO&INPIT