FURNACE FOR CONTINUOUS MELTING OF SULPHIDE MATERIALS IN MOLTEN POOL Russian patent published in 2009 - IPC F27B17/00 

FIELD: metallurgy.

SUBSTANCE: invention refers to metallurgy, particularly to devices for continuous processing of sulphide ores and concentrates containing copper and/or nickel. The furnace consists of a caisson stack with tuyeres, of a facility for charge loading, of two transverse partitions not reaching a bottom thus forming overflow ports for melt; the said partitions divide the stack into a melting chamber, a reduction chamber and a chamber of settling; the furnace also consists of a device for tapping of molten products and of individual facilities for gas exhaust from the melting and reduction chambers. The partition dividing the melting and reduction chambers pressure tight separates gas space between the chambers. The upper edge of the overflow port into the settling chamber is located above the upper edge of the overflow port between the melting and reduction chambers, while the devices for tapping molten products from the furnace are arranged from the side of the settling chamber.

EFFECT: facilitating maximum utilisation of melting chamber heat which escapes during oxidising of sulphide materials and fuel burning in melt; also facilitating maximum transition of sulphur into gases of melting chamber and production of high-grade with non-ferrous metals matte, of depleted slag and gases of reduction chamber not requiring sulphur utilisation.

1 dwg, 3 ex