Diseño y simulación de una criba vibratoria con una capacidad de 25 ton/h e inclinación variable para la clasificación de piedra de canto rodado

Abstract

This work exposes the development of an alternative for the classification of crushed rock used to obtain aggregates for construction. In an aggregate production line, the element that limits the classification capacity is the vibrating screen. Its design focuses on increasing classification capacity, reducing operational costs and having a purchase cost that encourages mining dealers to make the investment. Three alternatives that meet the global requirements for screening processes were considered, selecting the most suitable one by weighting, being the variable inclination vibrating screen with an external vibrator motor, the machine developed in this work. An exhaustive design and simulation process of the most critical elements using specialized software ensures the mechanical integrity and proper performance of each component. In addition, detailed blueprints are provided to efficiently and reliably carry out its manufacture. Its design is based on the expected classification capacity, from which the screening surface, structural supports, supports, springs, among other fundamental variables were calculated to select the vibrator motor. Finally, obtaining the total manufacturing cost, an economic analysis was conducted to determine the project viability, investment payback period, and VAN and TIR economic indicators, in order to guarantee a safe investment and promote its manufacturing, commercialization and use in the country's productive sector.