喷雾干燥制备陶瓷微球过程的数值模拟  

Numerical Simulation of Spray Drying Process for Producing Ceramic Microsphere

作　　者：程小苏[1] 方海鑫 刘泽昊[3] 张迎元[3] 王岳[3] 王永朝[3] 梁志先[1] 曾令可[1] 

机构地区：[1]华南理工大学材料科学与工程学院,广东广州510640 [2]广东省能源利用监测中心,广东广州510030 [3]洛阳船舶材料研究所二室,河南洛阳471039

出　　处：《华南理工大学学报（自然科学版）》2007年第2期107-111,共5页Journal of South China University of Technology(Natural Science Edition)

基　　金：广东省自然科学基金资助项目(31375)

摘　　要：在分析传质和传热方程的基础上,确定了喷雾干燥制备陶瓷微球过程的数学模型及边界条件,用Fluent软件模拟喷雾造粒的颗粒大小和运动轨迹.通过对比计算结果与实验结果,确定了适合制备陶瓷微球的喷雾塔操作参数:当空气入口温度为573Κ,废气出口温度为388K,废气出口压力为-350 Pa时,喷雾头最佳旋转速度为12000 r/min.A mathematical model that describes the spray drying process for producing ceramic microsphere is proposed based on the analyses of mass-and heat-transfer processes. The corresponding boundary conditions of the model are also determined. The Fluent software is then used to simulate the size and moving trace of the spraying particles. By comparing the calculated results with the tested ones, suitable operation parameters of the spray drying process are finally determined. When the inlet temperature of air is 573 K, the outlet temperature of exhaust gas is 388 K, and the outlet pressure of exhaust gas is -350Pa, the best rotating speed of spray head is 12000r/min.

关 键 词：陶瓷微球 喷雾干燥 数值模拟 Fluent软件 

分 类 号：TQ174.611[化学工程—陶瓷工业]