Abstract
There are innumerable sources of air pollution, as well as his control is key to promoting an environment with less potential risk to human health. Thus, this study aims to reveal the establishment and use of ventilation systems in order to reduce the emission of atmospheric material, more specifically particulate matter generated by a furniture factory, adopting a mechanical system for this industrial site known as local exhaust ventilation (LEV). The main target of control equipment are: circular saw, planer, sander and band saw. To establish the system dimensioning to its essential components such as sensors, ducts, fan and a cyclone for segregation of waste collected. In this study, the design was based on the method of Static Balancing, which is conceived through the design of stations, listing their captors in the load loss, pipelines, and singularities. Thus, the end point of the network presented a static pressure of 106.75 mmca, and fan designed to move the air must have a rated power of 2.45 hp (2.42 hp). The cyclone was rated for a flow of 1.14 m³/s (2415 cfm).Key words: local exhaust ventilation, particulate matter,furniture industry.
Highlights
There are innumerable sources of air pollution, as well as his control is key to promoting an environment with less potential risk to human health
This study aims to reveal the establishment and use of ventilation systems in order to reduce the emission of atmospheric material, particulate matter generated by a furniture factory, adopting a mechanical system for this industrial site known as local exhaust ventilation (LEV)
To establish the system dimensioning to its essential components such as sensors, ducts, fan and a cyclone for segregation of waste collected
Summary
Todo processo produtivo pressupõe perdas, as quais normalmente passam ao meio ocupacional participado pelas máquinas e operários. Segundo Fundacentro (2010), as medidas de controle podem ser classificadas de caráter coletivo e de engenharia, se projetadas e aplicadas nos ambientes e nas fontes de geração da poeira nos processos, como os sistemas de ventilação local exaustora (VLE); de caráter administrativo, como aquelas inseridas nos programas de gestão de risco; de caráter individual, como a utilização de equipamentos de proteção respiratória (EPR) e de vestimentas adequadas, e, também, como de ordem geral, por meio da limpeza e da sinalização dos locais de trabalho. Com a finalidade de manter o ambiente de trabalho dentro de parâmetros seguros em termos de contaminação do ar e, por conseguinte, preservar a saúde dos trabalhadores, é indispensável que o sistema de exaustão seja projetado, construído, instalado, operado e mantido segundo os melhores preceitos de Engenharia, de modo a prevenir a liberação de agentes indesejáveis ao ambiente de trabalho, atendendo às necessidades específicas de cada processo ou operação a ser controlada (Sobrinho, 1996; Queiroz, 2010)
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