摘要
振动流化床干燥是陶瓷干法造粒过程的一个重要操作单元。针对卧式多室振动流化床干燥装置能量利用率不高、耗能较大等问题,基于陶瓷原料在振动流化床干燥中的动力学模型、传热方程及热平衡方程,建立了陶瓷原料干燥所需热量在振动流化床干燥机长度方向上变化的数学模型。该模型表明,干燥过程所需热量沿多孔板长度方向减少。因此讨论了在多孔板长度方向底部用隔板隔开不同区域进行不等温进气,实验结果表明符合数学模型,分区供热方式可降低陶瓷原料干燥过程能耗,成品质量符合陶瓷工业干粉造粒要求。
Vibration fluidized bed drying is an important operation in ceramic granulation.But drying energy consumption is higher,is bad for protecting the environment.In order to solve the problem of high energy consumption in ceramic industry,Based on the kinetic model,the heat transfer equation and the heat balance equation of the ceramic raw material particle vibration fluidized bed,a mathematical model was established to change the heat required for the drying of the ceramic raw material in the length direction of the vibrating fluidized bed dryer.The model shows that the heat required for the drying of the ceramic raw material decreases exponentially along the length of the perforated plate.Now by designing the divisional heat supply experiment to change its heating mode,it can be obtained that conforms to the vibrating fluidized bed drying process mathematical model.Divisional heat supply can reduce the consumption of ceramic raw materials during drying,and the quality is also in line with the ceramic industry dry powder granulation requirements.
作者
肖志锋
黄煌
方堃
席舸
乐建波
吴南星
XIAO Zhi-feng;HUANG Huang;FANG Kun;XI Ge;LE Jian-bo;WU Nan-xing(School of Mechanical and Electronic Engineering,Jingdezhen Ceramic University,Jingdezhen 333403,China;Huayi Compressor Co.,Ltd.,Jingdezhen 333400,China)
出处
《硅酸盐通报》
CAS
CSCD
北大核心
2018年第8期2646-2649,共4页
Bulletin of the Chinese Ceramic Society
基金
国家自然科学基金(51306083)
江西省教育厅科技项目(GJJ160638)
国家级大学生创新训练计划(201710408011)
关键词
振动流化床干燥
陶瓷工业
陶瓷原料干燥
分区供热
优化设计
vibration fluidized bed drying
ceramic industry
drying of ceramic raw material
divisional heat supply
optimization design
作者简介
肖志锋(1980-),男,博士,副教授.主要从事现代干燥技术及理论方面的研究.
