DEVICE FOR EXCLUDING BACK MIXING IN FLUIDIZED-BED REACTOR

摘要

FIELD: fluidized-bed reactors. SUBSTANCE: proposed fluidized-bed reducing reactor consists of several reactors equipped with gas distributors. Loading pipe running through upper part of reactor is used for delivery of ground iron ore to said reactor. Free end of loading pipe is located near center of upper part of gas distributor. Located above gas distributor is spiral-shaped partition embracing the loading pipe; this partition is secured to inner wall of reactor. Ground iron ore is subjected to fluidization and reduction at continuous spiral motion from center of reactor to its inner wall. As a result, back mixing is excluded and reacted ore is mixed with unreacted ore. EFFECT: enhanced efficiency. 4 cl, 2 dwg, 1 ex