METHOD AND HYDRAULIC UNIT FOR DEEP MINING OF THIN STEEPLY INCLINED MINERAL SEAMS

摘要

Usage: gornodobyvayuscha industry, mining coal. SUMMARY OF THE INVENTION: breaking of minerals are simultaneously around the working face jets of working fluid. Its density is selected intermediate between the density of the mineral and gangue. Hydraulic unit soder- INH hollow beam, inside which are laid separate channels for supplying the working fluid to the nozzles and propellers. 2. 1 z.p.f BACKGROUND yl 1.