ROTATING DRUM MELTING FURNACE FOR PROCESSING OF WASTES OF NON-FERROUS METALS Russian patent published in 2015 - IPC F27B7/00 

FIELD: metallurgy.

SUBSTANCE: furnace includes a cylindrical housing, a burner device, a loading opening, a tap hole for pouring out molten metal, a heat insulating layer consisting of three sheets of flexible heat-insulating glass-fibre mullite silica cardboard and a layer of chamotte lightweight, on which a refractory layer of mullite shrink-proof ramming mixture is put; the burner device is made in the form of a four-mixing injection rectangular gas burner, in which two mixers with a perforated hemisphere are arranged in the lower row, and in the upper row there are two mixers with twelve ribs at the end of the mixer on the inner side. The furnace has a turning mechanism of a burner screen, with a possibility of charge loading to the furnace through the opening for the burner at the retracted burner, a drive mechanism for rotation of the furnace relative to the horizontal axis to both sides through an angle of 105, a dust-gas cleaning system containing a mixing chamber, an ID fan, a dust-gas cleaning unit and a cartridge filter.

EFFECT: simplifying the design; increasing operating life; reducing emissions of harmful gases to atmosphere.

4 cl, 7 dwg