锂云母焙烧过程的模拟计算及节能设计  

Simulation and Energy-saving Design of Lepidolite Roasting Process

作　　者：杨晓武 袁爱武[1] 李伟达[1] 陈玉萍[1] 汤洛 YANG Xiaowu;YUAN Aiwu;LI Weida;CHEN Yuping;TANG Luo(CINF Engineering Co.,Ltd.,Changsha 410019,China)

机构地区：[1]长沙有色冶金设计研究院有限公司,长沙410019

出　　处：《绿色矿冶》2024年第5期39-44,共6页Sustainable Mining and Metallurgy

摘　　要：以某年产1万t电池级碳酸锂的锂云母提锂工程设计为案例,采用METCAL软件对锂云母硫酸盐法回转窑焙烧过程进行物料衡算和热量衡算,分析其中的主要能耗点,并将模拟计算结果与同类项目实际运行数据进行对比。结果显示,模拟计算结果与现场数据基本吻合,焙烧系统热量损失主要为干燥窑排气热量损失和回转窑散热损失,这两者在总热量中的占比达到了48.3%,应重点关注。进行节能设计时,应加强设备保温绝热、熟料余热利用和窑尾烟气余热利用,以降低锂云母提锂生产能耗和成本。Taking the design of lithium extraction project from lepidolite with an annual output of 10000 tons of battery-grade lithium carbonate as an example,the material balance and heat balance of the roasting process of lepidolite sulfate rotary kiln were calculated by METCAL software,and the main energy consumption was analyzed.The simulation results were compared with the actual operation data of a similar project.The results show that the simulation results are basically consistent with the actual data.The heat loss of the roasting system is mainly the exhaust heat loss of the drying kiln and the heat loss of the rotary kiln,which account for 48.3%of the total heat and should be paid attention to.In the energy-saving design,equipment insulation,clinker waste heat utilization and kiln tail gas waste heat utilization should be strengthened to reduce the energy consumption and cost of production.

关 键 词：锂云母 硫酸盐法焙烧 METCAL 回转窑 篦冷机 节能 

分 类 号：TF826.3[冶金工程—有色金属冶金]