The powdered coal from ten pulverizers is blasted into each boiler through burners, which are ignited by propane.

He succeeded by heating the metal with powdered coal in a crucible which had previously been manufactured from clay suitable for the purpose.

The roasted ore is next mixed with half its weight of powdered coal and charged into fireclay retort furnaces.

Colloidal fuel is an emulsion of powdered coal in kerosene.

In 1921 the manufacturer of steam power plants for industry began, and in 1927 the first operational steam engine powered by powdered coal was built.

The burning of powdered coal, as in a power plant, yields very fine particles of ash called fly ash.

In a sintering machine, finely divided natural ores and particles recovered from iron smelting are mixed with coke or powdered coal.

The fuel would have been a mixture of powdered coal and petroleum.

The resulting product, called powdered coal or pulverized coal, is then generally used in a fossil fuel power plant for electricity generation.

The powdered coal from the pulverizer is directly blown to a burner in the boiler.