SOME CRITICAL ISSUES OF THE INDIAN COAL MINING INDUSTRY

PREPARED BY :KALYANI JHA

INDIAN MINERAL RESOURCES

India has ample amount of mineral resources.

Indian has gained high momentum of production

on various mineral resources.

Among such mineral coal stand on the first

position.

FIRST CRITICAL ISSUESPONTANEOUS HEATING

SPONTANEOUS HEATING

Spontaneous heating is the process of heating of

coal after some period.

The period after which spontaneous heating

takes place is called incubation period.

CONT…

Heating of the coal takes place after exposure of coal

to the atmosphere.

This heating of coal takes face of dangerous fire.

The problem of fire is an old as an history of mine.

Best example: JHARIA COAL FIELD.

CAUSES OF MINE FIRE

In O/C mine

Spontaneous heating

In U/G mine

Sluggish ventilation

Improper roof support in underground mine

Incomplete extraction

SECOND CRITICAL ISSUEVENTILATION PROBLEM

In underground mine ventilation is the big

problem.

The sluggish ventilation causes various problem

to the workers at working phase

Various gases comes out during extraction

process. Such as CO, CH4 etc

CONT…

The main gas which is dangerous for workers is

methane.

The high quantity of methane in mine cause fire damp

explosion .

Insufficient ventilation causes coal dust explosion.

VARIOUS OTHER ISSUES

Since the workers of the mine are unskilled and

not properly trained.

This unskilleness and improper training may

cause various accidents in the mine and various

economical loss.

PREVENTION TO BE TAKEN Proper care should be taken so that spontaneous

heating should not take place, such as:

1) Coal piece should be covered with plastic cloth.

2) If heating of coal is seen then water should be

sprinkled immediately on coal.

3) New mining method for complete extraction of

coal.

PREVENTION FOR VENTILATION PROBLEM

Proper ventilation arrangement should be made.

Ventilation arrangement should be made such

that fresh air should reach at working face.

Ventilation should be such that cool atmosphere

must be maintained under mine.

OTHER PREVENTION

Worker of the mine should be well trained before

giving entry in the mine.

They should be given various information about

the machine which they are going to operate.

THANKYOU