FIELD: metallurgy.
SUBSTANCE: proposed furnace comprises body arranged at welded frame and composed of refractory outer lateral, front and rear end walls, accumulation wall and inclined platform confined by hearth and walls, crown, working and spare drain notches, working and slag opening shutters, rotary bowl and gas duct. Furnace has outer heat insulation of walls consisting of asbestos grit, dual layer of refractory mats and dual layer of asbestos cardboard sheets. Accumulation bath and inclined platform are made from corundum blocks laid on the layers of asbestos cardboard and light brick. Furnace frame is filled with concrete with filler from fireclay and asbestos grit. Crown above inclined platform and bath has heat-insulation plaster above which dual layer of refractory heat-insulation mats is laid. One lateral wall of the furnace if provided with two injection eight-mixer medium-pressure burners directed at angle to inclined platform while another lateral wall is furnished with on injection eight-mixer burner directed at angle to inclined platform and another 17-mixer reheat chamber directed to furnace hearth lined by refractory bricks to house sin-mixed gas injection burner, air blower, and waste gas heater arranged above said chamber. Notches in lateral wall for release of fused metal are made in fast-replace notch bricks.
EFFECT: higher efficiency, reduced heat losses.
7 cl, 10 dwg
