PARTICLE FLOW RATE MEASURING METHOD, AND CIRCULATION AMOUNT MEASURING APPARATUS AND CIRCULATION AMOUNT CONTROL MECHANISM FOR CIRCULATION FLUIDIZED BED FURNACE

摘要

PROBLEM TO BE SOLVED: To provide a particle flow rate measuring method for measuring a flow rate of particles in a particle supply passage serving to supply particles, and also provide a circulation amount measuring apparatus for a fluidized bed forming particles in a circulation fluidized bed furnace and a circulation amount control mechanism using the circulation amount measuring apparatus. ;SOLUTION: A temperature marker M is formed in a particle layer 11 in a particle supply passage 10, for which marker temperature of particles is different in regions before and behind in the direction of supplying particles, and a movement distance of the temperature marker M per unit time is detected, and the flow rate of the particles is calculated on the basis of the detected movement distance per unit time.;COPYRIGHT: (C)2000,JPO