LIQUID-PHASE FURNACE FOR SMELTING MATERIALS CONTAINING FERROUS AND NONFERROUS METALS Russian patent published in 2009 - IPC F27B17/00 

FIELD: heating.

SUBSTANCE: invention relates to metallurgy and, particularly, to the plants for continuous processing of oxidised nickel-containing ores, slag and dust. The liquid-phase furnace includes rectangular caisson-type well with lined walls being situated underneath. The well expands in the upper part. It is provided with top and bottom tuyeres. The well is separated into smelting and recovery chambers by a transverse partition. The chambers are interconnected through the window for smelt cross-flowing in the lower part of the transverse partition. The furnace also includes staggered or tilted hearth, slug discharge trap and electrodes being merged into the smelt. The electrodes are installed in slug release trap with their heat-generating ends being placed on the border of slug phase and metal phase separation in the trap. Besides, the trap volume is more than 10 times less than the recovery chamber volume.

EFFECT: 10-time reduction of metal losses with non-utilised slug and avoidance of emergency furnace trip due to accretion formation in trap.

2 cl, 1 dwg