FIELD: blasting operations.
SUBSTANCE: device includes matrix with channels which are the branches of primer and which are filled with explosive, blasting device of primer and the main charge of explosive. Primer is divided with partitions from inert material into parts the number of which is equal to the number of the above branching channels. Explosive of the primer blasting device is installed with a gap relative to the surface of the primer. When additional charge of explosive is arranged between matrix and the main charge, it is also divided with partitions from inert material into the parts the number of which is not less than the number of branching channels of the primer.
EFFECT: explosion safety of the device is improved.
3 cl, 3 dwg
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