VANYUKOV FURNACE FOR MELTING MATERIALS CONTAINING NON-FERROUS AND FERROUS METALS Russian patent published in 2008 - IPC F27B17/00 

FIELD: heating.

SUBSTANCE: invention relates to metallurgy branch and particularly to oxidized nickel ore processing to matte or ferronickel. Vanyukov furnace contains coffered well, which is rectangular at bottom and expanding in top part and separated by cross wall into melting and reduction chambers, staggered or tilted hearth, siphon with openings for sludge and metal containing phase discharge. Tuyeres are displaced along periphery of well walls. Chambers contact between each other through the window for melt flowing in low part of cross wall. Furnace is provided with tuyere adjusting melt flow volume through window for melt flow and its heating. It is located under the level of the said tuyeres by 5-8 diameters of their aperture. Rectangular walls of melting and reduction chambers of furnace are lined and conjugated along the whole height of cross wall through temperature compensated vertical clearances closed by coffered part of well walls from one side and by cross wall end from the other side. Cross wall is made high-refractory. Invention ensures increase of operation duration or reliable operation due to exclusion of crust formation in melt flow window from one chamber to another and avoidance of lining damage in rectangular part of furnace well and reduction of coolants flow rate.

EFFECT: increase of operation duration and improvement of reliable operation due to exclusion of lining damage in rectangular part of furnace well and reduction of coolants flow rate.

2 dwg