FIRE SAFETY IN MINES

In order for a fire to exist three elements are required; fuel, oxygen gas and ignition source. When these elements combine in the right proportions then they are able to retain the chemical reaction to keep the fire burning.

In the mining industry fire and explosions pose a constant threat to the safety of miners. Mine fires and explosions traditionally have ranked among the most devastating. Leaking high-pressure hydraulic lines which can spray a heated mist of highly combustible liquid. Movable equipment used in underground mines don’t only contain fuel sources but also ignition sources. This equipment presents an appreciable risk for fires. Welding and cutting activities are also a leading cause of fire in mines.

Special precautions need to be taken to ensure that these activities do not create a possible ignition source for a fire or explosion. Handling and storage of flammable and combustible liquids pose a special fire hazard for all sectors of the mining industry. The storage of flammable and combustible liquids is an especially important concern because these materials ignite more easily and propagate fire more rapidly than ordinary combustibles.

Safety for fires and explosions in underground mines is based on the general principles of preventing fire and explosion. Eliminating electrical ignition sources is essential or preventing explosions. Explosion proof enclosure such as plugs receptacles and circuit interrupting devices should be used in hazardous areas. Fire containment is a fundamental control mechanism for any type of industrial facility.

Fire suppression. The most common types of fire suppression equipment used in underground mines are portable extinguishers and water hose lines.

Fire detection and warning systems. The detection of gas or smoke is the most cost-effective approach to providing fire detection coverage over a large area. The primary concern during an underground fire is the safety of underground personnel.