1.
By:
Prof. Suraj Kumar
Mining Engineering Department
GEC Palanpur

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