CARTRIDGES OF NON-EXPLOSIVE DESTRUCTIVE MATERIAL Russian patent published in 1996 - IPC

FIELD: civil engineering, mining. SUBSTANCE: cartridge of non- explosive destructing material has a shell, water-proof preferentially. Non-explosive destructive material on the base of coarse lime (0.063 - 2.5 mm particle size) is put inside the cartridge. Rigid perforated tube is installed inside the cartridge along its lengthwise axis. The cartridge is made of two options to be used in blast holes of different length. One is used as end one, and another as intermediate. End cartridge has perforated tube. There is a spacing between one end of the tube and butt equal to 1 - 2 cartridge diameter. Another end of the tube extends outside and has outer thread. Both ends perforated tube of intermediate cartridge are extended outside its butts and are threaded. Couplings with internal thread are used to make a chain of cartridges. The couplings are screwed on adjoining threaded ends of perforated tubes. The cartridges are provided with replaceable injecting device of multiple use. The device has a tank filled with liquid and a jig to monitor flow rate. Connection is provided in the upper part of the tank to be connected to pump air conduit. Lower part is provided with flexible hose with a tap and a connection to join to the perforated tube of the cartridge. Upper part has an opening to fill liquid. Plug is provided for the opening. EFFECT: high efficiency. 4 cl, 7 dwg