mining self rescuer

1. SELF RESCUER
Presented By :-
Sidhartha Sourav Nayak
Reg. No-200301190007
Mine Environment and
Hazards
S U B M I T T E D T O : -
A R U N S I R

2.  Self rescuer is essentially gas mask in a simplified
form without the corrugated hose tubing.
 Its weight is low, nearly 1 kg.
 The chemical are manganese dioxide & copper oxide,
is used as a catalyst which changes CO to CO2.
 CO is a poisonous gas & also colorless & odourless.
 Basically it is used in degree 3 mines
 It can’t use for breathing operation.

3. The fig 1.1 shows a miner with the rescuer on

4. Use of self rescuer
 Self-rescuers are for use in environments such as
coal mines where there is a risk of fire or explosion,
and in a location where no external rescue may be
available for some time
 The main hazard here is from large quantities of
carbon monoxide or white damp, often produced by
an explosion of firedamp.
 A miner should don the rescuer immediately on
seeing

5. 1-clouds of smoke
2-smell of combustion gases
3-unexpected dust
 Self rescuers are stored on the surface in the lamp
room or in a self rescuer room adjacent to the lamp
room .
 Worker are pick up the lamp & self rescuer at the
same time when going down the mines.

7.  In IW-65,calcium bromide & lithium chloride(53%
CaBr2 & 5% LiCl) are used for drying agent in
charcoal.
 The Co catalyst is hopcalite used for conversion of co
to co2.
 This conversion generate heat in reaction.
 The filter section has an outer coarse dust filter & an
inner fine dust filter to remove dust particles.
 The self rescuer can be used for one hour after its
seal is broken in atomsphere of 1% CO.