TRANSMITTER AND ATTENUATOR OF EXPLOSION DETONATION PULSE IN SHOTHOLE Russian patent published in 2009 - IPC F42D1/08 

FIELD: explosive works.

SUBSTANCE: transmitter and attenuator of explosion denotation pulse relates to stoping method of block stone out of rocks in open-pit using blasting operations. Mixture consists of transmitter and attenuator of explosion denotation pulse in shothole represented by unexplosive material, disposed between explosive material and shothole walls. Mixture contains wt %: watersoluble thickener - 0.36-10.0; explosion absorbing additives - 1.45-3.0; component correcting hydrogen ion exponent - 0.06-0.6; the rest - water. Mixture has hydrogen ion exponent from pH 6 to pH 8 and relative viscosity from 8 to 20 seconds according to viscometer with nozzle of 6 mm. Transmitter and attenuator of explosion denotation pulse in shothole is obtained with consistence filling shothole except for small splits. Mixture transmits and evenly distributes decreased load on shothole walls, regulated by viscosity. Invention ensures qualitatively splitting along shotholes row without damaging rock block, reducing expenses on explosive material and harmful effect on ecology.

EFFECT: ensuring qualitatively splitting along shotholes row without damaging rock block, reducing expenses on explosive material and harmful effect on ecology.

9 cl, 2 tbl, 3 dwg