PROCESS AND APPARATUS FOR MONITORING INTERNAL CIRCULATION OF FLUIDIZED BED WITHIN A REACTOR VESSEL, COOLING AND MEASURING APPARATUS THEREFOR AND A REACTOR VESSEL PROVIDED THEREWITH

摘要

The present invention relates to a device for continuously controlling the internal circulation flow-rate of the solid particles in a circulating fluidized bed comprising a lower zone (3) where the fluidization gas is injected, and an upper zone (2) surrounded by walls (4). It comprises - a sampling tank (100) of solids of the internal circulation attached to one of said walls (4) of the reactor and provided with fluidization means (102), - a discharge pipe (110) of the said solids of the said container (100) to a device (130) for measuring the flow rate of the said solids, - a pipe of inversion (120) of the said solids of the measuring device (130) towards the inside of the reactor.