Mine ventilation refers to the movement of air around a mine to provide a safe and healthy environment for workers. A mine ventilation system includes fans, airways, and devices to direct air flow as well as systems to cool, filter, and monitor air quality and quantity. Air is required in mines to supply oxygen for breathing, remove heat, dilute dust and gases, and remove dust and unwanted gases. The composition of air can be represented by the percentage of each gas by volume or mass, with the main components being nitrogen, oxygen, argon, carbon dioxide and water vapor.
2.
Mine ventilation refers to the movement of air
around the mine to provide suitable quality and
quantity of air to maintain a safe and healthy
environment in which workers may work.
A mine ventilation system includes fans, airways,
control devices to direct or restrict air flow, cooling
and filtering air and systems for monitoring air
quality and quantity.
Introduction
3.
Air is required in mines for four important reasons
namely;
- to supply oxygen for breathing
- to remove heat from underground environment
- to dilute the presence of dust and various
unwanted gases
- to remove dust and unwanted gases
Purpose
4.
Air is a non-homogeneous mixture of different gases. There are
two ways by which we can represent the composition of air:
Percentage of gas by volume
Percentage of the gas by mass
Composition of Dry Air
