Determinación de riesgos bajo la matriz de la Norma NTP 330 y diseño de encapsulamiento sonoro de las máquinas micropulverizadora y molino en la Planta de Producción “EXIBAL” del cantón Chambo, provincia de Chimborazo

Abstract

The purpose of this research was to determine risks and design the sound encapsulation of micropulverizing and mill machines, the relationship of various factors was analyzed such as noise, the machines that cause it and possible professional-level diseases at the Exibal Chambo production plant. In the investigation a number of activities were presented, first, a field study was carried out to assess the initial situation of the company that allowed to determine the risks caused by the machines in the environment through the use of the risk matrix and the application of the NTP 330 standard. Different noise samples were measured using sonometry, which allowed the correct analysis of the properties of different materials for insulation, in addition cost assessment and estimation was considered and a model for sound insulation was finally designed. It was identified that the main types of risks in the company are ergonomic and physical. Noise measurements showed that 85% of workstations the permissible noise limit is exceeded, with the most critical point being the production area where the micropulverizing and mill machines with a level of 110 dB are located; the high level of noise exposure was considered and a sound encapsulation design of the micropulverizing and milling machines was proposed at the production plant; which will reduce a level of 23,895 dB, in order to preserve the health of workers.