Projeto de um triturador para polímeros pós-consumo

Abstract

The design and construction of machines are of great help for the development of society. The recycling of materials relates to machines and equipment capable of transforming one product into another, we can mention the mechanical recycling of plastic materials that involves several types of machines in their process, from crushers, washers, dryers, among others. In the context of these issues comes the design of a post-consumer polymer crusher that is capable of carrying out the fragmentation process at the lowest possible cost. For the development of a project, one must initially develop a conceptual project, after preliminary and finally detailed of all the equipment, where the process is totally cyclic and iterative. Therefore, this work presents the design with analytical tools and numerical simulations, in addition to a practical investigation of the mechanical properties of the materials to be processed. As a result, we obtain the mechanical characterization of the Polyethylene Terephthalate (PET), High Density Polyethylene (HDPE) and Polypropylene (PP) polymers, where (PET) showed the highest tensile and shear strength. At the same time, we obtained the project with four basic systems: (a) Power system; (b) Cutting system; (c) Electrical system; (d) Structural system, based on manufacturing processes widely used in the metal-mechanical industry. In addition to components that are easy to locate on the market, facilitating the making of a prototype with lower costs for a final product.