摘要
针对铝用阳极炭素生产过程中的能效问题,探讨煅烧和焙烧工艺的余热潜力,提出针对性的余热回收方案。结果表明,煅烧烟气发电及加热导热油年收益高达1 890万元,循环冷却水供冷暖年收益144.209万元,焙烧阳极炭块余热利用年收益275.976万元。采用有机朗肯循环(ORC)等低温余热回收技术焙烧烟气,在理论上具有可行性。研究方案有助于提升能源利用效率,创造经济效益,为铝用阳极炭素行业实现能源高效利用、达成节能减排目标提供参考。
Aiming at the energy efficiency issues in the production process of anode carbon for aluminum,the potential of waste heat from calcination and roasting processes is explored,and targeted waste heat recovery schemes are proposed.The results show that the annual revenue from calcination flue gas power generation and heating of heat transfer oil is as high as 18.9 million yuan,the annual revenue from circulating cooling water supply for heating and cooling is 1.44209 million yuan,and the annual revenue from the utilization of waste heat from calcination of anode carbon blocks is 2.75976 million yuan.It is theoretically feasible to calcine flue gas by using low-temperature waste heat recovery technologies such as the organic Rankine cycle(ORC).The research plan is conducive to improving energy utilization efficiency,creating economic benefits,and providing a reference for the aluminum anode carbon industry to achieve efficient energy utilization and reach energy-saving and emission reduction goals.
作者
张学志
朱相源
楚廷阳
杨开敏
刘吉营
ZHANG Xuezhi;ZHU Xiangyuan;CHU Tingyang;YANG Kaimin;LIU Jiying
出处
《节能》
2025年第9期93-98,共6页
Energy Conservation
基金
山东省高等学校青创人才引育计划创新团队项目(项目编号:鲁教科函[2021]51号)。
关键词
铝用阳极炭素
余热利用
煅烧工艺
焙烧工艺
有机朗肯循环
anode carbon for aluminium
waste heat utilization
calcination process
roasting process
organic Rankine cycle
