METHOD OF ELECTRIC FUSE BLASTING Russian patent published in 2014 - IPC F42D1/02 

FIELD: mining.

SUBSTANCE: incendiary charges are interconnected in the direction of initiation of blasthole charges with connection for transmission pulse of ignition of the incendiary composition. The connection is formed of incendiary pipe connected with a segment of the shock-wave tube. One end of the incendiary pipe - igniting fuse - is inserted into the first incendiary charge, and the other end of the incendiary charge - blasting cap - is connected to the end of the segment of the shock-wave tube. The other end of the segment of the shock-wave tube is inserted into the second incendiary charge.

EFFECT: increased productivity and safety improvement of works, reduction of time of explosion of blasthole charges for one time by reducing the time interval between bursts of blasthole charges and reduction of seismic impact on rock walls, preventing their rock fall.

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