一、前言铝及铝合金在近代工业中应用越来越广泛,目前世界的铝产量仅次于钢铁,跃居有色金属首位,与此同时,铝加工行业对能源的要求也在与日俱增。因此节能是该行业面临的重大课题,而铝熔炼的节能,又首当其冲。但是国内铝加工行业的节能工作,与钢铁机械行业相比,起步晚,差距大。要提高节能效果必须突破旧的炉型结构和加热方式,采用先进的炉型结构,强化对流传热充分利用高温废气,妥善解决质量和节能的矛盾。“SP”型快速熔铝炉就是为了 I. Introduction Aluminum and its alloys are widely used in modern industry. At present, the world’s aluminum production is second only to that of steel and the highest of non-ferrous metals. At the same time, the energy requirements of the aluminum processing industry are also increasing. Therefore, energy-saving is a major issue facing the industry, and the aluminum melting energy, bear the brunt. However, the domestic aluminum processing industry, energy-saving work, compared with the steel machinery industry, started late, the gap. To improve the energy-saving effect, we must break through the old furnace structure and heating method, adopt advanced furnace structure, and strengthen the convection heat transfer to make full use of high-temperature exhaust gas so as to properly solve the contradiction between quality and energy saving. “SP” type rapid melting furnace is to