Optimización del sistema de ventilación en la mina Sheridan Mining Explorations El Combe E.I.R.L. – Algamarca, 2023
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Date
2024-07
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Universidad Nacional de Trujillo
Abstract
El objetivo principal del trabajo de investigación titulado "Optimización del Sistema de
Ventilación en la mina Sheridan Mining Explorations El Combe E.I.R.L." fue determinar el grado
de mejora del sistema de ventilación al ser optimizado, con el fin de abordar la excesiva
acumulación de gases en la mina Sheridan.
Se empleo la metodología experimental, descriptiva comparativa, teniendo como población
a todas las labores de la mina Sheridan y como muestra más representativa toda la Rampa Sheridan,
la cual viene a ser el único acceso principal que va de bocamina hasta la zona más profunda de la
mina con una distancia de 350 metros aproximadamente. Sheridan se caracteriza por tener labores
ciegas, al principio utilizaban una ventilación impelente con un ventilador de 15000 cfm (424.8
m3/min) instalado en bocamina con una manga de 26” extendida 300 metros por la Rampa
principal, lo cual generaba recirculación y tiempos extensos en la evacuación de gases, generando
la acumulación de estos en toda la rampa principal y labores cercanas. En esta investigación se
realizó el levantamiento de ventilación, seguido del cálculo del requerimiento total de aire según
el personal, equipos y fugas, el cual era de 14531.3 cfm (411.5 m3/min). Para lograr cubrir el
requerimiento se determinó que la ventilación natural sería la opción más económica con la
conexión de una chimenea a superficie debido a los cambios de presiones (3930.0 USD),
incrementando el requerimiento de aire de 69% a 88 % lo cual generaría flujos continuos dentro
las labores. Asimismo, utilizar solo ventilación auxiliar para canalizar los flujos y evacuar los gases
de voladura de 1:48 a 0:51 horas (46.9%) y regular los horarios de ingreso.
Finalmente se concluye que observa una reducción significativa del 59.9% en la
acumulación de gases en el sistema de ventilación de la Mina Sheridan al optimizar el sistema
The main objective of the research paper entitled "Optimization of the Ventilation System at the Sheridan Mining Explorations El Combe E.I.R.L. mine was to determine the degree of improvement of the ventilation system when optimized, in order to address the excessive accumulation of gases at the Sheridan Mine. The experimental, descriptive comparative methodology was used, taking as a population all the workings of the Sheridan mine and as the most representative sample the entire Sheridan Ramp, which is the only main access that goes from the mine mouth to the deepest area of the mine with approximately 350 meters. Sheridan is characterized by having blind operations, at first, they used a forced ventilation with a 15,000 cfm (424.8 m3/min) fan installed at the mine entrance with a 26” sleeve extended 300 meters along the main Ramp, which generated recirculation and long times of gas evacuation, generating the accumulation of these throughout the main ramp and nearby works. In this research, the ventilation survey was carried out, followed by the calculation of the total air requirement according to personnel, equipment and leaks, which was 14531.3 cfm (411.5 m3/min). To cover the requirement, it was determined that natural ventilation would be the most economical option with the connection of a chimney to the surface due to pressure changes (3930.0 USD), increasing the air requirement from 69% to 88% which would generate flows continuous in the work. Likewise, only auxiliary ventilation should be used to channel flows and evacuate blast gases from 1:48 to 0:51 hours (46.9%) and regulate entry times. Finally, it is concluded that it observes a significant reduction of 59.9% in the accumulation of gases in the ventilation system of the Sheridan Mine when optimizing the system.
The main objective of the research paper entitled "Optimization of the Ventilation System at the Sheridan Mining Explorations El Combe E.I.R.L. mine was to determine the degree of improvement of the ventilation system when optimized, in order to address the excessive accumulation of gases at the Sheridan Mine. The experimental, descriptive comparative methodology was used, taking as a population all the workings of the Sheridan mine and as the most representative sample the entire Sheridan Ramp, which is the only main access that goes from the mine mouth to the deepest area of the mine with approximately 350 meters. Sheridan is characterized by having blind operations, at first, they used a forced ventilation with a 15,000 cfm (424.8 m3/min) fan installed at the mine entrance with a 26” sleeve extended 300 meters along the main Ramp, which generated recirculation and long times of gas evacuation, generating the accumulation of these throughout the main ramp and nearby works. In this research, the ventilation survey was carried out, followed by the calculation of the total air requirement according to personnel, equipment and leaks, which was 14531.3 cfm (411.5 m3/min). To cover the requirement, it was determined that natural ventilation would be the most economical option with the connection of a chimney to the surface due to pressure changes (3930.0 USD), increasing the air requirement from 69% to 88% which would generate flows continuous in the work. Likewise, only auxiliary ventilation should be used to channel flows and evacuate blast gases from 1:48 to 0:51 hours (46.9%) and regulate entry times. Finally, it is concluded that it observes a significant reduction of 59.9% in the accumulation of gases in the ventilation system of the Sheridan Mine when optimizing the system.
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TECHNOLOGY::Civil engineering and architecture::Geoengineering and mining engineering::Mining engineering