生物质压缩成型过程有限元分析.doc

FINITE ELEMENT ANALYSIS ON BIOMASS PELLETIZING PROCESS 1st TIE-LI YE College of Mechanical and Electrical Engineering, Shandong University of Science and Technology, Qingdao 266510, China Terryye99@ 2nd HE LI College of Mechanical and Electrical Engineering, Shandong University of Science and Technology, Qingdao 266510, China xinfangwina@163.com 3rd LIANG WANG College of Mechanical and Electrical Engineering, Shandong University of Science and Technology, Qingdao 266510, China 6057079@163.com 4th XIAO-FEI FAN Jinan Pressure Vessel Factory, Jinan 250022, China 378431294@  ABSTRACT Biomass pelletizing is an important branch of biomass energy conversion technology. In this article, using parametrical design module of three-dimensional solid modeling software Unigraphics NX(UG) constructs geometric model of plane-die belonging to the pivotal part of plane-die pelletizing machine. Using finite element simulation software ANSYS simulates biomass pelletizing process so as to obtain stress field of plane-die and biomass, which provide an important reference for the design and improvement of plane-die pelletizing machine. KEYWORDS Biomass, Plane-die, Simulation1. Introuction Biomass compression molding is to put agricultural and forestry waste, such as the crushed crop stalks, into the molding machine, then compressed into the required shape and size by exerting certain external pressure [1]. According to the different molding mechanism, compression molding machine can be divided into four categories: piston press, extruder press, matrix pellet press, twist press [2]. Among them, matrix pellet press can be divided into plane-die pelletizing machine and ring-die pelletizing machine. Plane-die is a pivotal part of plane-die pelletizing machine. Fig.1 shows the molding parts of plane-die pelletizing machine . Fig.1 Structure schematic drawing of molding parts 2. Parametric design and modeling UG is a large-scale application software associated with the parame