Ultra-short-distance power supply closed double-body lifting type electric arc furnace and positioning smelting method

The invention relates to the technical field of non-metal ore smelting production, in particular to an ultra-short-distance power supply and closed double-body lifting type electric arc furnace and a non-metal ore positioning smelting method. The electric arc furnace comprises an electrode lifting device, an electrode, a power supply ultra-short net, a power supply, an electrode clamping device, a material distributing device, a furnace cover, a lifting furnace bottom, an inner furnace pipe, a heat preservation outer furnace body, a smelting furnace trolley, a hydraulic lifting device, a trolley track, a hydraulic device bottom table, smelting furnace trolley wheels, a smelting positioner, a lifting tray, a lifting tray hole and a material supplementing positioner. By arranging the hydraulic lifting tray, a smelted finished product falls dynamically, and positioning smelting is achieved; through combination and lifting of the heat preservation double furnace bodies, the smelting furnace cavity is reduced, ful