氢氧化铝焙烧炉低温烟气余热发电系统

Low-temperature flue gas waste heat power generation system for aluminum hydroxide calciner

本文简要介绍了氢氧化铝焙烧生产氧化铝过程中所产生低温烟气的一种余热利用系统-低温烟气余热发电系统,该系统利用有机朗肯循环原理,将烟气中的部分热能转化为电能,单台4 000 t/d焙烧炉的低温烟气每小时发电功率约为741.7 kW,并分析了该余热利用系统的经济价值及社会意义,为行业从业者确定经济可行的氢氧化铝焙烧炉余热利用方案提供参考。

This paper briefly introduces a waste heat utilization system-low-temperature flue gas waste heat power generation system for the low-temperature flue gas generated during the production of alumina by aluminum hydroxide calciner.This system utilizes the organic Rankine cycle principle to convert some of the heat energy in the flue gas into electrical energy.The low-temperature flue gas of a 4000 t/d calciner can generate approximately 741.7 kW power per hour.The economic value and social significance of this waste heat utilization system are analyzed to provide reference for industry practitioners to determine economically feasible waste heat utilization plans for aluminum hydroxide calciner.