烟秆颗粒微波负压干燥工艺参数的优化  

Optimization of Technical Parameters of Microwave Negative Pressure Drying for Tobacco Stem Particles

作　　者：张大斌[1] 卢泽[1] 张纪利[2] 黄德云 ZHANG Da-bin;LU Ze;ZHANG Ji-li;HUANG De-yun(College of Mechanical Engineering,Guizhou University,Guizhou Guiyang 550025,China;Zhongyan Guangxi Industrial Co.,Ltd.,Guangxi Nanning 530000,China;Guizhou Kordake Electrical Equipment Co.,Ltd.,Guizhou Guiyang 550001,China)

机构地区：[1]贵州大学机械工程学院,贵州贵阳550025 [2]广西中烟工业有限责任公司,广西南宁530000 [3]贵州科尔达克机电设备有限公司,贵州贵阳550001

出　　处：《机械设计与制造》2019年第7期85-88,共4页Machinery Design & Manufacture

基　　金：贵州省科技支撑计划资助项目(黔科合支撑[2016]2038);广西中烟工业有限责任公司科技项目(201645000034018);贵州大学机械工程“技术众筹”研究生创新基地(贵大研CXJD[2015]003)

摘　　要：为了获取烟秆颗粒微波负压干燥的最优工艺参数。以烟秆颗粒为对象,进行了微波负压干燥试验。以微波功率、物料厚度、干燥室压力为干燥试验因素,研究了各因素对烟秆颗粒干燥特性的影响。通过3因素3水平二次回归正交试验,分析了微波功率、物料厚度、干燥室压力对烟秆颗粒干燥的含水率、干燥均匀度的影响,建立了各指标与试验因素间的回归数学模型并利用多目标非线性优化方法,确立了烟秆颗粒微波负压干燥的最优工艺参数。结果表明:微波功率对烟秆颗粒干燥速率影响效果显著;当干燥室压力为-24.3kPa,微波功率为695.7W,物料厚度为12.9mm,为烟秆颗粒制备生物质燃料的条件最佳。In order to obtain the optimum process parameters of microwave drying of negative pressure of tobacco stem particles. The microwave negative pressure drying test was carried out on the tobacco stem particles. The effects of various factors on drying properties of tobacco stalk particles were studied by microwave power, material thickness and drying chamber pressure as drying factors. Through the 3 factors and 3 levels of the two orthogonal regression experiment, the relationship between the microwave power, the thickness of the material and the pressure of the drying chamber on the moisture content and the uniformity of the flue gas were analyzed. The regression mathematical model between the indexes and the experimental factors was established, and the optimal parameters of microwave vacuum drying were determined by using the multi-objective nonlinear optimization method. The results show that the effect of microwave power on the drying rate of tobacco stalk particles significantly;when the drying chamber pressure is -24.3kPa, microwave power 695.7W, material thickness 12.9mm, preparation of biomass fuel for tobacco stalk particles for optimum conditions.

关 键 词：烟秆颗粒 微波负压 干燥工艺 参数优化 

分 类 号：TH16[机械工程—机械制造及自动化] TS43[农业科学—烟草工业]