The carbonization silicon salt bath smelting furnace belongs to the continuous production load,its voltage changes with the change of electric power network and creates an unnecessary energy loss.

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.