磷酸铁锂制备中干燥设备的设计与选型  

Design and Selection of Drying Equipment in the Preparation of Lithium Iron Phosphate

作　　者：夏萌梁 刘骅 郝允碧 秦晓云 XIA Mengliang;LIU Hua;HAO Yunbi;QIN Xiaoyun(Changzhou Fanqun Drying Equipment Co.,Ltd.,Changzhou 213000,China)

机构地区：[1]常州市范群干燥设备有限公司,江苏常州213000

出　　处：《化工管理》2025年第2期120-123,共4页Chemical Management

摘　　要：随着新能源汽车的快速发展,磷酸铁锂成为新能源车电池的主要原料,其供需矛盾日益加剧。文章以磷酸铁锂吸附剂项目为背景,采用闪蒸干燥与回转窑炉组合的干燥生产工艺,通过物料衡算和热量衡算计算出所需的空气用量,再根据空气速度范围确定设备的直径和高度。结果显示,闪蒸干燥机进风总热量为700×10^(4)kJ,当闪蒸空塔风速取3~5m/s时,干燥塔直径取2.2~2.8 m。回转窑燃烧器功率为450×10^(4)kJ,窑体采用φ3m×30m,筒体壁厚18mm。该干燥系统实现了全天候不间断的自动化生产工艺,干燥速率高,节能降耗,在磷酸铁锂生产过程中起着极其重要的作用。With the rapid development of new energy vehicles,lithium iron phosphate has become the main raw material for new energy vehicle batteries,leading to an increasingly acute supply-demand contradiction.Based on a lithium iron phosphate adsorbent project,this paper adopts a combined drying production process utilizing flash drying and rotary kilns.Material and heat balances are conducted to calculate the required air volume,and the diameter and height of the equipment are determined based on the range of air velocities.The results indicate that the total inlet air heat of the flash dryer is 700×10^(4) kJ.When the air velocity in the empty flash drying tower is set at 3-5 m/s,the diameter of the drying tower is selected to be 2.2-2.8 m.The rotary kiln burner has a power of 450×10^(4) kJ,with a kiln body of f 3 m×30 m and a cylinder wall thickness of 18 mm.This drying system achieves round-the-clock,uninterrupted automated production processes,with high drying rates and energy savings.It plays an extremely important role in the production of lithium iron phosphate.

关 键 词：二水磷酸铁锂 闪蒸干燥 回转窑炉 节能降耗 

分 类 号：TQ110.6[化学工程—无机化工]