Desenvolvimento de um sistema automatizado para a proteção de equipamentos em área com risco de explosão de poeira combustivel na indústria de beneficiamento de grãos

Abstract

This work proposed the development of an automated safety system, in a simulated environment, for equipment located in classified areas with explosive atmospheres in the grain processing and storage industry. The main objective is to mitigate the risks associated with these areas and promote operational efficiency and the safety of people, environments, and assets. A literature review and information gathering were conducted on a currently implemented solution in the factory where the study took place, along with an analysis of the company's and users' needs. Based on this information, a programming logic for the programmable logic controller (PLC) was developed, and the graphical screens of the Human Machine Interface (HMI) system were created. Simulations of communication between temperature and speed sensors and the analog inputs of the PLC, as well as communication between the PLC and the HMI, were also performed. During the project implementation, it was observed that the system was able to use information from various variables to perform different types of programmed tasks. The system demonstrated good performance in processing the provided data, enabling decision-making based on this information. The simulated system exhibited consistent behavior with the control logic developed in this study. Through the simulation presented here, it was possible to conduct tests, validate, and improve the control logic before its implementation in the actual PLC. This approach can contribute to ensuring consistent and efficient operation for real-world implementation.