The identification of dangerous and harmful factors in mine operation is very comprehensive!

The basic measures to prevent gas and coal dust explosion accidents are to prevent the concentration of gas and coal dust in the air to reach the explosion limit concentration and strictly control the detonating source. The main places (locations) where gas accumulation is more likely to occur are:

Upper (lower) corner of underground coal mining face;

Driving face of coal roadway in high gas seam;

Goaf of underground working face;

Caving area of working face of high gas seam;

Gas accumulation area after gas outburst;

Single head coal driving face;

Other underground places with poor ventilation;

Deep concave open-pit coal mining face with temperature inversion.

7. Mine flood

Water influx is a disaster accident in underground operation area. Strengthening the management and control of underground water exploration and water plugging, small coal mines and abandoned Wells is the main way to control this kind of accident.

8. Explosion accident

Each mine shall have a proper safety plan for explosives based on national regulations, as well as precautions for blasting in gas or coal dust hazardous areas.

Electrical or electrical equipment used in an environment that is wet or contains certain explosive gases is a risk factor and the design of electrical equipment and installations must comply with special safety regulations.

9. Other risk factors

This includes improper use of hand tools, dropping of objects or materials, gas and arc welding or cutting, burns from acidic or alkaline substances, splashing of particles, etc.