METHOD FOR RECYCLING OF HOUSEHOLD AND INDUSTRIAL WASTES Russian patent published in 2009 - IPC C22B7/00 F23G5/00 

FIELD: technological processes.

SUBSTANCE: method includes loading of wastes with fluxing additives into melted slag bath bubbled by supplied gas into electric furnace with electrode submerged into slag melt at specific power of 400-1,500 KW/m², blast intensity of 0.3-0.5 nm³/t·min and melt temperature of 1,450-1,600°C. At that extracted flammable components are burned up, and dust and heat of waste gases are utilised. Loading of wastes and gas supply is performed to near-electrode area of furnace, volume of which is defined as volume of cylinder with diameter equal to 2.38 of electrode diameter, cylinder height equal to value H_e+d_e/2, where d_e is electrode diameter, m; H_e is electrode submersion into slag melt, m. Gas is supplied to melt with flow velocity of 50-150 nm/sec. Ferruginous flux is added to melt in amount required for maintenance of iron content in slag melt within the limits of 10-15%.

EFFECT: reduction of capital and power inputs, higher extraction of non-ferrous metals into marketable produce.

4 cl, 2 tbl, 1 ex