散装水泥车罐体流化床结构优化设计  

Optimization Design of Bulk Cement Truck Tanks Fluidized Bed Structure

作　　者：李耀刚[1] 纪宏超[1] 裴未迟[1] 王玉彬[1] 郑镭[1] 李军[2] 

机构地区：[1]河北联合大学机械工程学院,河北唐山063009 [2]石家庄经济学院,石家庄050031

出　　处：《北京工业大学学报》2014年第4期495-501,共7页Journal of Beijing University of Technology

基　　金：河北省科技支撑计划资助项目(10215616D)

摘　　要：为了使散装水泥运输车罐体流化床结构更加合理,在原有罐体设计仅凭经验数据基础上定性定量地找出有利于改善流态化和卸料过程的参数值,利用计算流体动力学(computational fluid dynamics,CFD)软件通过模拟分析不同参量值下流化形态和卸料效果,提高流化质量和卸料速度,降低剩余率,达到提高流化罐使用性能的目的.针对以上问题为企业专门设计了针对相应罐体流化床的自动分析软件.结果表明:在一定范围内提高布风板上进气速度、增大布风板面积有利于缩短水泥流化时间;不同车型进气速度不同,所选车型进气速度为0.5 m/s;增大布风板面积对卸料过程有利;增大卸料口直径不能提高卸料效率.To make the bulk cement truck tanks fluidized bed structure more reasonable, truck tanks, which is originally designed by only experience data, need to qualitatively and quantitatively find out parameters to improve the fluidized and unloading process. The mean form and unloading effect under different parameters were simulated using computainal fluid dynamics （CFD） software to improve the fluidization quality and unloading speed, lower residual rate, and enhance the performance of fluidization cans. According to these problems, the automatic analysis software for corresponding tanks of fluidized bed was specially designed for enterprises. Results show that the air speed on the cloth board is improved in a certain range, the cement fluidization time is shortened by increasing the cloth board area, the inlet velocity for different models are different, and the inlet velocity of the selected models is 0.5 m/s. Increasing the area of cloth boards is helpful for the unloading process, and increasing the unloading mouth diameter cannot improve the unloading efficiency.

关 键 词：散装水泥运输车流态化 优化分析 计算流体动力学 

分 类 号：U469.65[机械工程—车辆工程] TP172.68[交通运输工程—载运工具运用工程]