| Belt conveyor, as the main modern bulk material conveying equipment, is widely used in several industrial production fields. With the development of economic globalization, domestic enterprises are gradually adapted to the international rules, and have a need to deeply participate in international competition and cooperation. To analyze the difference between the domestic and foreign standards is the first step of entering the international market. At the same time, the rapid development of the energy industry has prompted the progress of the equipment manufacturing industry. Long-distance, large-capacity, high-power and high-performance have become the direction of belt conveyor development. Conventional design and calculation methods using rigid theory for the analysis of belt conveyor fail to meet the demand, it is necessary to do dynamic design of belt conveyor system with dynamic analysis. In this paper, we chose Chinese national standard "specification for engineering design of belt conveyor" and American standard CEMA for comparison and study. The basic characteristics of the belt, the main part of the conveyor belt system, was studied first, to determine its kinetic model. The dynamics equations of the belt conveyor system was established by combining the dynamics models and kinetic equations of the key parts of the system The software AMESim was employed to built the belt conveyor system discrete model with the internal physical elements, and the influence of the element density on the dynamic simulation results was studied. The variation of tension in the conveyer belt at different starting time was calculated, to optimize the starting time. The belt’s speed and tension from head to tail and the displacement and velocity of the tensioning device in the process of starting was obtained. Through dynamic simulation analysis of belt conveyor system model, a new starting acceleration curve was found, which provides a reference for the design of future large belt conveyor. |
PDF Full Text Request