Application of electronic-detonating cord detonator hybrid initiation network to Huangjindong Gold Mine
In view of the sharp increase in the blasting cost of enterprises after the full implementation of electronic detonators,the paper proposes to adopt the initiation method of electronic-detonating cord detonator hybrid initiation network,and replace the use of electronic detonators by detonating the peripheral holes with detonating cords.Through the field single factor test,it is determined that the electronic-detonating cord detonator hybrid initiation network is connected in parallel by segments,the peripheral holes and non-peripheral holes are respectively charged with uncoupled interval or continuous charge,and the electronic detonator is used for millisecond delay initiation,and the test results are the best.Through cost comparison and analysis,after the implementation of the new initiation method,the enterprise's blasting cost will be saved by 17.37%,and the annual cost will be saved by about 5.6 million yuan.