The raw coal, before it enters the plant.

A sluggish warm breeze smelled of raw coal and diesel fumes.

There are 6 pulverising mills per unit which ground down the raw coal until it had the consistency of sand.

Only with the introduction of hot blast from 1829 was raw coal used.

Due to the low energy value of raw brown coal, long distance transport of the fuel was not economic.

The raw coal is then fed into the pulverizer along with air heated to about 650 degrees F from the boiler.

I could see the deep cuts in the earth and the thick horizontal seams of raw coal.

Standard crushers can be used for prior crushing of raw coal.

Several small fires broke out in the bunker storing raw coal from the mine, but were contained with no damage.

The raw coal has less than 25% of burnable substance.