These processes include:oxygen-flame smelting process,the Vanyukov smelting process,sm- elting in a stationary unit with top blowing and smelting in a tilting furnace.

The zinc smelting furnace with automatic feeding system has functions of automatic, timing and quantitative control on its feeding process.

This paper makes thermal equilibrium test and calculation of the smelting furnace on a domestic aluminum casting workshop,analyses the factors influencing the thermal efficiency of smelting furnace,proposes the corresponding measures for energy-saving.

By persistent technical upgrading and innovation in the past two decades,especially the introduction of the advanced oxygen\|enriched top\|blown bath smelting to replace the electric furnace smelting,the enterp.