Clinker (waste)
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Clinker is a generic name given to waste from industrial processes, particularly those that involve smelting metals, welding, burning fossil fuels and use of a blacksmith's forge, which commonly cause
Clinker from a cement kiln
An individual piece of cement clinker
Coal-seam fire
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A coal-seam fire is a burning of an outcrop or underground coal seam. Most coal-seam fires exhibit smoldering combustion, particularly underground coal-seam fires, because of limited atmospheric oxyge
Clinker (waste)
…anthracite or lignite coal-fired boilers. Clinkers can occur naturally, for example in underground deposits of coal that have been altered by heat from coal-seam fires and nearby molten magma; volcanic clinkers are jagged pieces of lava that look similar to industrial clinker. "Clinker" is from Dutch, and was originally…
A coal fire in China
Open-cast mining continues near a fire at Jharia coalfield in India.
Fire at the surface, Xinjiang, 2002
The effect of underground coal fire visible on the surface