MINE HAZARDS

GOVENRMENT ENGINEERING COLLEGE,BHUJMINING ENGINEERING 6th SEM.MINE HAZARDS(2162294) MINES FIRESSURAJ M BAMBHANIYA E.No.140153122001

1

1.Presence of combustible material.2.Presence of a source of ignition of sufficient intensity of heat.3.Presence of oxygen.4.Contact of combustible material and source of ignition for some timeTo start fire the following conditions are essential

Indian standards specifications classifies fire as follows.1] CLASS A FIRES2] CLASS B FIRES3] CLASS C FIRES4] CLASS D FIRES5] CLASS E FIRESClassification of fires

These fire involve combustible material Eg. Timber, Coal, Rubber, Conveyor belt other carbonaceous material

1] CLASS A FIRES:

These fires involve inflammable liquids e.g. Lubrication oils, Diesel, Petrol and other fuel oils and greases etc.2] CLASS B FIRES :

These fires involve gaseous fuels like LPG gas, Butane etc.

3.CLASS C FIRES :

These are metal fires such as melting iron, etc.4.CLASS D FIRES:

These fire involve live electrical equipment such as electric motors, Generators cables, oil-filled transformers, circuits breaker, electronic equipment 5.CLASS E FIRES :

1.Fire in store yards, engine houses .etc(the causes of such fires are generally.) A]. Electrical :Short circuiting of electrical wiring, sparks from welding apparatus of electric motors and equipment. B].Embers of coal or other fires: Insufficient care negligence cases spread of fire due to these reasons.

SURFACE FIRES:

C].Carelessly thrown cigarette, biristubs at places containing kerosene oil, lubricating oil, grease, Oil-soaked cotton waste, paper and other combustible material.

D].Hot surfaces: Hot surfaces of electrical motors, steam engines or internal combustion engines in contact with combustible material: hot wooden brake blocks of winders and other engines.

2.The possibility of fire in overburden heaps near quarries is generally ignored. Inferior coal And shale is very often thrown into overburden dumps.in a large number of cases , the shale bands so dumped have some bright coal attached to them.

1.Steam rising from a coal stock is a warning that heating is taking place. Presence of moisture on surface of coal stock early in the morning or late in the evening should not be mistaken for dew these are indications of the start of hearing . Observation of the temperature is of course the most reliable way to detect heating.

2.Seat of heating in a coal stock is nearly 0.6 to 1.5 m below the surface of stock.Dealing with fires in surface coal stock.

3.The coal stock in which heating has stated should be drenched with water jets under pressure. The quenched coal should be dug up and spread in thin layers about 0.6m thick at another place and allowed to cool down. such cooled down coal should be the first to be despatched.

4.Fire in the coal of bunkers(coal handing plant) can be prevented by keeping a watch on the hearing which may take place if the coal is not despatched due to shortage of wagons.

1.Check the workers, before they proceed underground , for match box, cigarettes,biris, cigarette lighters and other contrabands. This is required under the coal mining regulations.

2.Do not allow burning of fires inside mine(non-coal mine) and within 15m of an incline/pit. UNDERGROUND FIRES:

3.Avoid welding of the headgear pulley or the headgear frame unless proper precautions are taken. Such welding in the case of coal mine requires previous permission of the J.D.M.S

4.Avoid welding in underground repair shopWithout adequate precautions. if any repair shop/workshop is to be provided underground in coal mine prior approval of the J.D.M.S

1.Check the workers , before they procced underground ,for match box , cigarettes ,biris, cigarette lighters and other contrabands, this is required under the coal mining regulation

2.Do not allow burning of fires inside a mine(non-coal mine) and within 15m of an incline/pit

3.Avoid welding in underground repair shop without adequate precaautions.PREVENTION OF UNDERGROUND FIRES

THANK YOU