Electrical Firing System Optimization at High Frequency Ignition for Industrial Explosives

The most effective resonant mode of industrial explosives ignition by high frequency current was examined. Specifications of electric firing circuit at resonance occurrence in general and special cases were analyzed and defined. Conditions of self-compensation of electric firing circuit reactive parameters were defined. T-circuit equivalent of real electrical firing circuit was developed. Current impulse at resonance was defined. Grapho-analytical method to define refusals or electric detonator operation in the circuit depending on received current impulse was developed. By theory and by experiment were defined reactive elements values, brought into the electric firing circuit in order to achieve resonant mode, also electrical firing circuit general operation mode and in case of resonance and reliability conditions were analyzed. Recommendations for increasing of blasting devices efficiency at electric circuit ignition was provided.