FIELD: mining.
SUBSTANCE: device for destructing rock lumps consists of explosion substance in shell in form of elongated cumulative charge (ECC) 1 with metal foil placed in cumulative recess of ECC, of fuse out of initiating explosion substance (ES) in form of cartridge, and of "П"-shaped case made of split parts with air pockets 12 in vertical walls; also pockets are connected to chamber through orifices 7. The device contains a hold down fixture packing a two-part gasket 14 and 15 between a lump and the device. The "П"-shaped case is made of several parts out of materials of different strength and connected with bolts: main, several additional ones and un upper one.
EFFECT: raised efficiency of rock lumps destruction.
6 dwg
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