钢珠构件动态流化C类黏性颗粒LiF的实验研究  

Experimental study on fluidization of LiF C-particles by steel-ball components

作　　者：阮永刚 王辛龙[2] 孔行健[2] 杨林[2] RUAN Yonggang;WANG Xinlong;KONG Xingjian;YANG Lin(Yunnan Yuntianhua Co.,Ltd.,Kunming 650100,China;School of Chemical Engineering,Sichuan University,Chengdu 610065,China)

机构地区：[1]云南云天化股份有限公司,云南昆明650100 [2]四川大学化学工程学院,四川成都610065

出　　处：《磷肥与复肥》2022年第12期8-12,20,共6页Phosphate & Compound Fertilizer

摘　　要：采用气固流化法制备LiPF6是实现磷化工中氟化物循环、高效利用的有效手段,由于反应物中的LiF颗粒是C类黏性颗粒,存在明显非理想流化现象,通过添加钢珠构件实现该颗粒的稳定流化。重点考察钢珠直径和钢珠数量对LiF流化状态的影响,并对相应的床层压降信号进行非线性分析。结果表明,钢珠使传统布气板具有了动态布气的能力,保证床内气体的均一分布,减少LiF颗粒低气速下流化的沟流概率,同时能够减小C类黏性颗粒的团聚程度。The production of LiPF6by gas-solid fluidization method is used to realize fluoride cycling and efficient utilization in phosphorus chemical industry.Because the LiF is C-particles which has the non-ideal flow phenomenon,steel balls have been added to improve the fluidization quality of LiF.The influence of steel ball diameter and numbers on the fluidization state of LiF has been investigated and pressure-drop signal has been analyzed.The results show that the steel ball makes the better gas-distribution,reduces the gutter flow probability and agglomeration of LiF particles.

关 键 词：钢珠构件 LIF C类黏性颗粒 流态化 

分 类 号：TQ051.13[化学工程] TQ021