铝用炭阳极焙烧工艺优化与实践  

The optimizing and practices of carbon anode baking process

作　　者：朱世发[1] 罗英涛[2] 许建华[1] 陈开斌[2] 郭瑞敏[2] 杨宏杰[2] 

机构地区：[1]中国铝业连城分公司,甘肃兰州730335 [2]中国铝业股份有限公司郑州研究院,河南郑州450041

出　　处：《轻金属》2010年第6期39-42,共4页Light Metals

摘　　要：焙烧是炭阳极生产重要工序之一,制定适宜焙烧曲线、控制均衡火道温度、提高最终焙烧温度将直接影响炭阳极的质量和焙烧能耗。本文主要论述了通过优化焙烧工艺制度来提高阳极质量,降低焙烧能耗。国内某厂通过采用216小时焙烧曲线、自动调整负压及燃气供入量使火道温度均衡、提高焙烧最终温度至1200℃的焙烧工艺制度,炭阳极质量明显提高,体积密度、抗压强度和二氧化碳反应残余率分别由先前的1.53g/cm3、46.9MPa和73.3%提高到1.56g/cm3、53.9MPa和85.5%;电阻率由先前的59μΩm降低到53μΩm;阳极外观合格率由98%提高到99.63%;焙烧能耗由4.36GJ/t-C降低到3.05GJ/t-C。Baking is one of the important process in the carbon anode production, the quality of carbon anode and energy consumption of the baking furnace were influenced directly by the appropriate baking curve, the balanced flue temperature control and the higher peak baking temperature. In this paper, the quality of anode was enhanced and the energy consumption of the baking furnace was reduced by optimizing the baking process. The baking processes including the 216 hours baking curve, the balanced flue temperature...

关 键 词：阳极 焙烧 优化 实践 能耗 

分 类 号：TQ127.11[化学工程—无机化工]