METHOD OF INTEGRATED OPENING OF COAL DEPOSIT

摘要

FIELD: mining engineering. ^ SUBSTANCE: method of integrated opening of a coal deposit comprises deposit division into blocks, stripping of degassing and drain holes, preliminary degassing of coal beds and in-situ coal gasification with winding of bed degassing and coal gasification products. After coal burning in the block its ash slag residue and thermally metamorphosed rocks shall be treated with aqua solution of reagents to be selected depending on extracted component. Pregnant solution shall be pumped out for subsequent extraction of precious and/or toxic components where the toxic components are subjected to recycling. At the final stage the stripped area in the block shall be filled with stowage material. ^ EFFECT: improved environmental safety when opening a coal deposit. ^ 1 dwg