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Mining Limestone Coal

2019-11-27milled limestone, referred to as rock dust by the coal industry, is an additive used for safety in underground bituminous coal mineshe particles of the milled limestone mix with coal dust to prevent a potential explosionock dust is blown or sprayed as a slurry onto the roof, ribs and floor of the mine, and needs to be re-applied on a regular basis to maintain its effectiveness.

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