铝用预焙阳极焙烧炉节能低排放新技术

New Technology of Energy Saving Low Emission for Prebaked Roast Furnace

铝电解生产过程需要大量的高质量预焙阳极产品,而铝用预焙阳极主要是通过焙烧炉对破碎、磨粉、混捏后的煅后石油焦与煤沥青进行焙烧加工而成。在预焙阳极焙烧过程中,如果能对焙烧炉结构及燃烧控制技术进行优化,就能在很大程度上减少烟气带走的热量,提高热能利用率,使原材料充分焙烧,提高预焙阳极产品质量,进一步增强节能减排的效果。

The aluminum electrolysis production process requires a large amount of high quality prebaked anode products, while the aluminum prebaked anode is mainly through the roasting furnace on the crushing, grinding, mixed with calcined petroleum coke and coal tar pitch after firing processing. In the pre-bake anodizing process, if the roasting furnace structure and combustion control technology can be optimized to a large extent reduce the heat away from the flue gas, improve the utilization of heat, so that the raw materials fully roasted to improve the pre-bake anode Product quality, and further enhance the effect of energy-saving emission reduction.