METHOD OF BREAKING OF ROCK OVERSIZERS Russian patent published in 2000 - IPC

FIELD: technology of rock breaking in mining industry; applicable also in reconstruction of structures for their destruction over preset contour. SUBSTANCE: method includes simultaneous direction to one point of surface of oversize to be broken of mixture of explosive and liquid oxidizer with regulated frequency, and their mixing with initiating substance. Mixture of liquid explosive with liquid oxidizer is taken in ratio of 3:1. Initiating substance is used in form of alloy of liquid potassium and sodium which is mixed with mixture of liquid explosive and oxidizer in volume ratio of (2: 1)-(4: 1). Supply of mixture to surface to be destroyed is accomplished with frequency of 10-180 portions per minute. EFFECT: improved operating conditions of blasters and safety in realization of method due to possibility of remote control of breaking of rock oversizes. 1 tbl, 3 ex