一、前言自从石油危机以来,为了提高铝熔炼炉的热效率,做了各方面努力,而开发了代替低效率反射炉的填充塔式快速熔炼炉,为节能做出较大贡献。但与钢铁、电力等其它行业相比,在铝加工行业中(例如铝的压力铸造、轧制、挤压成形、二次熔炼等),热回收率至今还有相当大的差距。本文作者在熔炼铝方面具有丰富现场经 I. Introduction Since the oil crisis, in order to improve the thermal efficiency of aluminum smelting furnace, various efforts have been made to develop a packed tower rapid smelting furnace instead of an inefficient reverberatory furnace, making a significant contribution to energy conservation. However, compared with other industries such as steel and electric power, the heat recovery rate still lags far behind in the aluminum processing industry (such as pressure casting of aluminum, rolling, extrusion, secondary melting, etc.). The author has a wealth of on-site experience in smelting aluminum