GEAR TO REDUCE THICKNESS OF EXPLODED BENCH Russian patent published in 1998 - IPC

FIELD: mining industry. SUBSTANCE: invention can be used for explosive breaking of rocks in open pits of precious ores and for performance of blasting operations in cramped conditions. Proposed gear to reduce thickness of exploded bench includes motor vehicle with bearing platform coupled to lattice vertical and horizontal frames with guards with the help of hydraulic cylinders interhinged for travel and inclination relative to bearing platform. Guards are manufactured in the form of flexible vessels with fluid meant for shutting of lattice windows. Novelty of gear consists in installation of vortex dust collector with flexible dust duct and elastic enclosure forming closed space above horizontal lattice frame that is sectional. Sealing baffle is mounted over its outline. EFFECT: reduced volume of dust and gas outbursts during explosion under cover. 2 dwg