COAL STRIP MINING Russian patent published in 2014 - IPC E21C41/26 E21C41/32 

Abstract RU 2523246 C1

FIELD: mining.

SUBSTANCE: proposed method comprises the steps that follow. Top soil layer is removed to be preserves or to be transferred to territories to be reclaimed, loosening, loading and conveying stripped rock to make the waste dumps, dislodging, loading and coal transfer to storage and reclamation of dumps. Note here that seam weathered coal approaching the day surface is extracted and stored separately. Waste dumps are levelled to apply soil and weathered coal layers thereon. Produced layer is loosened with stripped rock and rolled.

EFFECT: higher efficiency.

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RU 2 523 246 C1

Authors

Patrakov Jurij Fedorovich

Anferov Boris Alekseevich

Kuznetsova Ljudmila Vasil'Evna

Dates

2014-07-20Published

2013-03-19Filed