What are the hazards of coal mining?
4. Results and discussion
| Hazard Group | Type of hazard elements | Associated risks |
|---|---|---|
| Shot firing and blasting (Chemical) | Human | Lack of concentration, accidental blasting |
| Blasting projectiles, blown through the shot | ||
| Chance of workers entering the blasting zone, injury to workers | ||
| Accumulation of coal dust, chance of fire |
What are the occupational hazards of mining industry?
The hazards covered are: accidents, dust (including poisoning by certain ores), high temperature and humidity, noise and vibration, toxic gases, and miscellaneous other hazards.
What are the hazards in mining?
The most common mining hazards include but not limited to ground collapse associated with mine entries (shafts and adits) or shallow, abandoned mine workings; subsidence; fault reactivation and fissures; minewater rebound; acid mine water drainage; mine gas emissions; spontaneous combustion; landslides; seismicity; …
What are the dangers and risks faced by mine workers?
Miners are regularly exposed to harmful contaminants in the air such as silica dust and other mineral dust. This puts them at a greater risk of developing respiratory illnesses such as pneumoconiosis, aka the black lung and silicosis over a long period of time.
What type of hazard is mining explosion?
In mining, explosives are the most obvious form of explosion hazard. Blasts and shots are controlled releases of chemical energy. However, the potential for the uncontrolled release of (stored) energy is also present and can be unrecognised.
How does mining affect workers?
Miners are at risk of developing a lung disease called pneumoconiosis because of their exposure to airborne respirable dust. This type of dust includes extra fine particles that people can inhale into their lung tissue. Silicosis can affect workers in many types of mines and quarries, including coal mines.
What are the diseases and risks faced by the miners?
Health problems of gold miners who worked underground include decreased life expectancy; increased frequency of cancer of the trachea, bronchus, lung, stomach, and liver; increased frequency of pulmonary tuberculosis (PTB), silicosis, and pleural diseases; increased frequency of insect-borne diseases, such as malaria …
What causes explosions in coal mines?
Coal mine explosions are generally caused by either methane or coal dust. Explosions happen when the methane comes in contact with a heat source. The combustion process causes air inside the mine to expand which can create a shock wave. The most common method to control methane levels in coal mines is ventilation.
What are the hazards of explosives?
An explosion produces:
- heat which sets fire to combustible material in its path.
- air blast that can move equipment and damage ventilation systems.
- toxic gases.
- an oxygen deficiency.