| 摘要 |
FIELD: blasting operations, applicable in mining industry for removal of hangings in ore chutes, as well as at processing of raw material, for instance, at cleaning of metal and reinforced-concrete bunkers in cement, coal-mining and chemical industries. SUBSTANCE: shells preventing leakage of gaseous explosive mixture and intensifying the shock wave after the burst of this mixture are used. Gaseous explosive is placed in reservoirs, in which a detonation wave is produced at initiation that acts on hangings destroying them. EFFECT: enhanced efficiency; enhanced safety of labor. 5 dwg |
