METHOD AND APPARATUS FOR THE DETECTION OF STAGNANT REGIONS IN A FLUIDIZED BED OR IN PNEUMATIC CONVEYING LINES

摘要

A probe electrode is mounted across the wall of a fluidized bed column or solid particles feed thereto, and an air gap between the probe electrode and a neon lamp causes lamp flashes when the particles are normally circulating and allows the detection of stagnancy of the particles in absence of light flashes.