基于EDEM的垂直螺旋输送机性能参数仿真研究
发布时间：2018-07-20 18:17
【摘要】：连续输送机械是指用来输送大宗散体物料或成件物品的输送设备。其广泛应用于国民经济的各个生产部门和物资流通中。连续输送机械可以减轻人们繁重的体力劳动,提高作业效率,易于实现机械自动化。螺旋输送机作为一种连续输送机械,已成为众多工艺流程中的关键设备或重要的辅助设备,广泛应用于国民生产的各个行业。 垂直螺旋输送机用来向上输送散体物料,本文通过对散体性能的研究和垂直螺旋输送机输送机理的分析,得出影响垂直螺旋输送机输送效率的因素主要包括散体物料的特性、填充系数、螺距、螺旋的转速等。以离散单元法为依据,应用颗粒仿真软件EDEM,通过导入垂直螺旋输送机的三维模型,在EDEM内建立散体颗粒的真实模型,通过改变垂直螺旋输送机的转速、散体物料的填充系数等来对散体物料在垂直螺旋输送机中的输送状态进行模拟仿真,并对仿真结果进行分析。根据仿真结果得出垂直螺旋输送机输送散体物料时,应根据散体物料的特性来设定填充系数并配以适当的螺旋转速,从而使垂直螺旋输送机具有高的输送效率和低的能源消耗。
[Abstract]:Continuous conveying machinery refers to the conveying equipment used to transport bulk materials or components. It is widely used in various production departments and material circulation of the national economy. Continuous conveying machinery can lighten people's heavy physical labor, improve working efficiency and realize mechanical automation easily. As a kind of continuous conveying machine, spiral conveyor has become the key equipment or important auxiliary equipment in many technological processes. It is widely used in various industries of Yu Guomin production. Filling coefficient, pitch, screw speed, etc. On the basis of discrete element method, the particle simulation software EDEM is used to establish the real model of granular particles in EDEM by introducing the three-dimensional model of vertical spiral conveyor, and the speed of vertical spiral conveyor is changed by changing the speed of the model. The filling coefficient of the bulk material is used to simulate the conveying state of the bulk material in the vertical screw conveyor, and the simulation results are analyzed. According to the simulation results, it is concluded that the filling coefficient should be set according to the characteristics of the bulk material and the proper screw speed should be set when the vertical screw conveyer conveys the bulk material, so that the vertical screw conveyer has high conveying efficiency and low energy consumption.
【学位授予单位】：太原科技大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH224
本文编号：2134353
[Abstract]:Continuous conveying machinery refers to the conveying equipment used to transport bulk materials or components. It is widely used in various production departments and material circulation of the national economy. Continuous conveying machinery can lighten people's heavy physical labor, improve working efficiency and realize mechanical automation easily. As a kind of continuous conveying machine, spiral conveyor has become the key equipment or important auxiliary equipment in many technological processes. It is widely used in various industries of Yu Guomin production. Filling coefficient, pitch, screw speed, etc. On the basis of discrete element method, the particle simulation software EDEM is used to establish the real model of granular particles in EDEM by introducing the three-dimensional model of vertical spiral conveyor, and the speed of vertical spiral conveyor is changed by changing the speed of the model. The filling coefficient of the bulk material is used to simulate the conveying state of the bulk material in the vertical screw conveyor, and the simulation results are analyzed. According to the simulation results, it is concluded that the filling coefficient should be set according to the characteristics of the bulk material and the proper screw speed should be set when the vertical screw conveyer conveys the bulk material, so that the vertical screw conveyer has high conveying efficiency and low energy consumption.
【学位授予单位】：太原科技大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH224
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