一引言我厂是以铜冶炼为主的多品种综合有色企业,年耗标准煤7万吨左右。十一届三中全会以来,品种又有了较大发展,增设了黄铜带生产线,但一些费能型设备依然被采用。几年来对轧机、退火炉等虽然已作了节能改造,但加热炉仍然是费能型的链式炉。于是, I. INTRODUCTION Our factory is based on copper smelting multi-species integrated colored enterprises, annual consumption of 70,000 tons of standard coal. Since the Third Plenary Session of the 11th CPC Central Committee, varieties have undergone great development with the addition of a brass belt production line, but some feeble-type equipment is still being adopted. Over the past few years, rolling mill, annealing furnace, etc. Although the energy saving has been made, but the furnace is still fee-based chain furnace. then,