滚筒干燥器能耗分析及参数优化设计  

Study on Energy Consumption and Parameter Optimization of Rotary Dryer

作　　者：黄文景 杨建红[2] 王小宁 

机构地区：[1]福建南方路面机械有限公司,福建泉州362021 [2]华侨大学机电及自动化学院,福建厦门361021 [3]宁夏维尔铸造有限公司,宁夏石嘴山753000

出　　处：《筑路机械与施工机械化》2017年第1期81-86,共6页Road Machinery & Construction Mechanization

基　　金：国家国际合作项目(2015DFA710402);福建省产学合作重大项目(2014H6017;2016H6013);国家国际科技合作专项项目(2013DFA71270)

摘　　要：针对热拌混凝土生产过程中物料加热、干燥能耗高等问题,通过实验分析了滚筒内扬料叶片结构参数对料帘分布特性的影响,对滚筒干燥器和料帘进行离散元仿真建模,实现扬料叶片齿间距、宽度、折弯角最优设计,优化计算后得到齿间距为39mm、叶片宽度为40mm、折弯角为128°。构建能耗预测支持向量机模型,能耗预测误差为±5%,实现滚筒干燥过程操作和生产参数的优化。High energy consumption in the process of heating and drying is a crucial problem for rotary dryer.Relationship between structural parameters of the blades and characteristics of material curtain distribution was studied based on tests.A simulation model of rotary dryer and material curtain was established based on discrete element method.Optimization of inter-tooth space of blade,tooth width and folding angle was realized,with the result being 39 mm,40mm and 128°respectively.Prediction model of energy consumption was built on support vector machine.The prediction error is about±5%,meaning the optimization of the drying process and production parameters of rotary dryer could be achieved.

关 键 词：滚筒干燥器 能耗 离散元 核主元分析 

分 类 号：U415.52[交通运输工程—道路与铁道工程]