METHOD OF MELTING OF FERRONICKEL OUT OF OXIDISED NICKEL ORES AND PRODUCTS OF THEIR CONCENTRATION AND ASSEMBLY FOR IMPLEMENTATION OF THIS METHOD Russian patent published in 2008 - IPC C22C33/04 F27B17/00 

FIELD: metallurgy.

SUBSTANCE: inventions refer to metallurgy and can be used fro production of ferronickel with various contents of nickel out of Ural and other oxidised nickel ores. The assembly is equipped with injectors for blowing dust into slag melt, the said dust caught in gas cleaning system while carried out with exhaust gases out of a chamber. Fuel oxygen burners are installed in side walls of the chamber above the level of the slag melt at 0.5-1.2 m at an angle of 15-60° to the surface of the melt and at an angle of 35-65° to the lengthwise axis of the assembly, while nozzles of the injectors for blowing into the slag melt carbon containing materials and dust caught in gas cleaning and carried off with exhaust gases out the chamber are installed at 0.25-0.60 m above the level of reduced metal. Heat exchangers of cooling circuit of liquid metal heat carrier are connected via nitrogen lines with injectors installed in the walls of the chamber, the said injectors facilitate injection of carbon containing materials and caught in gas cleaning and carried off by the exhaust gases out of chamber dust in a stream of heated nitrogen.

EFFECT: reducing nickel losses, arranging of environmentally appropriate non-waste production of ferronickel and increasing continuous operation life of the assembly and increasing its efficiency.

9 cl, 3 ex, 2 tbl, 3 dwg