干燥机非稳态运行模拟分析——模型的建立  

Simulation Analysis of Non-steady Operation of Rotary and Fluidized Bed Dryer

作　　者：张海滨 赵平杰 张庆磊 李晓光 吴静 张洪建 ZHANG Haibin;ZHAO Pingjie;ZHANG Qinglei;LI Xiaoguang;WU Jing;ZHANG Hongjian(Shandong Tianli Energy Co.,Ltd,Jinan 250013,China)

机构地区：[1]山东天力能源股份有限公司,山东济南250013

出　　处：《盐科学与化工》2024年第4期44-49,共6页Journal of Salt Science and Chemical Industry

摘　　要：根据蒸汽回转干燥机和流化床干燥机的结构特征和干燥原理,分析了两种干燥机系统主要参数的可变性以及参数波动对干燥系统的影响。分别采用边界分析和过程分析的方法,建立了两种干燥机各参数计算的数学模型,定量分析了进料量波动对两种干燥机的影响。结果表明,进料量从100%降至40%,回转干燥机的蒸汽单耗、热效率分别保持在57.9 kg/t和88.5%不受影响;流化床干燥机的蒸汽单耗从最低65.5 kg/t升高至135.7 kg/t,热效率从68.9%降低至42.9%,波动较大。According to the structural characteristics and drying principle of the steam rotary dryer and the fluidized bed dryer,the variability of the main parameters of the two dryer systems and the influence of parameter fluctuation on the drying system were analyzed.The mathematical models for calculating the parameters of the two dryers were established by boundary analysis and process analysis respectively,and the influence of feed fluctuation on the two dryers was quantitatively analyzed.The results showed that when the feed rate is reduced from 100%to 40%,the steam consumption and thermal efficiency of the rotary dryer remain at 57.9kg/t and 88.5%,which are not affected.The unit steam consumption of the fluidized bed dryer increased from the lowest 65.5 kg/t to 135.7 kg/t,and the thermal efficiency decreased from 68.9%to 42.9%,which fluctuated greatly.

关 键 词：蒸汽回转干燥机 流化床干燥机 非稳态 参数波动 模拟 

分 类 号：TQ051.892[化学工程]