【作者】 王德瑶；

【导师】 李炳熙；

【作者基本信息】 哈尔滨工业大学 ， 工程热物理， 2006， 硕士

【摘要】 本文根据多孔物体的传热传质特性,结合工程实际对丁苯橡胶的干燥过程进行了动态模拟,并对干燥系统进行了优化。干燥过程是橡胶工业的主要过程之一,也是重要的耗能过程。本文根据能量与质量平衡,给出了干燥系统能耗的计算方法。多孔物料的传热传质特性是研究干燥过程的基础,本文通过对多孔物料传热传质的研究,结合实验给出了计算丁苯橡胶分子扩散系数的公式。根据吉化橡胶厂的干燥系统,结合橡胶深床干燥的模型,编制了橡胶干燥动态模拟程序。影响干燥过程的因素有很多,如干燥空气的温度与相对湿度,橡胶的含水率与温度,橡胶层的厚度等等。本文通过模拟程序的模拟,分析了上述因素对干燥过程的影响,并根据分析结果对干燥系统的设计参数与运行参数进行了优化,给出了最佳参数。此外,又提供了两种干燥模式与现有的模式进行模拟比较,并进行了能耗分析。更多还原

【Abstract】 The thesis has simulated the process of rubber drying and optimized the drying system, based on the specialty of porous material and the real project.The drying process is very important in rubber industry, and is also very energy-consuming. From the conversation of energy and mass, the thesis had introduced the numeration of the energy wastage.The mass and heat transfer specialty of porous material is the basic of drying problem, through the investigation and the experiment, the thesis have given the formula of molecule diffuse coefficient.Based on the drying system of the rubber factory in the Jilin Petrochemical Company and the drying model of the deep-bed, the author has programmed the dynamic simulation of the rubber drying. There are many factors which can interfere with the process of rubber drying, such as the temperature and relative humidity of the drying-air, the moisture rate and temperature of the rubber and the depth of rubber layer. The author has analyzed the infection of these factors through the simulation of program, and from the analysis results, the thesis has optimized the designing and running parameters and given the best ones. Furthermore, there are two new drying mode had been given to compare with the old one through the simulation, and then the wastage of energy has been analyzed.更多还原