Abstract: The present disclosure relates to a connector for a blast-triggering device, said connector including a connector head in which a rear end thereof is integrally connected with a rear surface of a connector body, an upper surface thereof is formed in a curved surface extending from the rear end thereof to a front end thereof, a tube insertion portion is provided between a lower surface thereof and the connector body so that a plurality of shock tubes is fitted therein, and the front end thereof is separated from the connector body. Thus, it is possible to maintain the shape of the connector during detonation, thereby minimizing the generation of debris and improving the safety at the time of detonation. In addition, it is possible to prevent damage to the plurality of shock tubes, thereby preventing a cut-off phenomenon caused by damaged shock tubes during detonation.

Abstract: The present disclosure relates to a trunkline delay detonator and a blast-triggering device using the same. In the blast-triggering device, a trunkline delay detonator is inserted into a connector in such a manner that a plurality of shock tubes connected to a detonator for initiating an explosive are interposed between the connector and the trunkline delay detonator, so that an explosion signal is applied to the shock tubes by detonation of the trunkline delay detonator. In the blasting detonator, close contact between the outer surface of the trunkline delay detonator and the shock tubes is improved, whereby energy lost in an explosion is reduced and an explosion signal is stably and uniformly applied to the shock tubes by using powder which has a weak explosive power and is relatively insensitive compared to conventional powders.

Abstract: The present disclosure relates to a connector for a blast-triggering device, said connector including a connector head in which a rear end thereof is integrally connected with a rear surface of a connector body, an upper surface thereof is formed in a curved surface extending from the rear end thereof to a front end thereof, a tube insertion portion is provided between a lower surface thereof and the connector body so that a plurality of shock tubes is fitted therein, and the front end thereof is separated from the connector body. Thus, it is possible to maintain the shape of the connector during detonation, thereby minimizing the generation of debris and improving the safety at the time of detonation. In addition, it is possible to prevent damage to the plurality of shock tubes, thereby preventing a cut-off phenomenon caused by damaged shock tubes during detonation.

Abstract: The present disclosure relates to a trunkline delay detonator and a blast-triggering device using the same. In the blast-triggering device, a trunkline delay detonator is inserted into a connector in such a manner that a plurality of shock tubes connected to a detonator for initiating an explosive are interposed between the connector and the trunkline delay detonator, so that an explosion signal is applied to the shock tubes by detonation of the trunkline delay detonator. In the blasting detonator, close contact between the outer surface of the trunkline delay detonator and the shock tubes is improved, whereby energy lost in an explosion is reduced and an explosion signal is stably and uniformly applied to the shock tubes by using powder which has a weak explosive power and is relatively insensitive compared to conventional powders.

Abstract: The present invention relates to an emulsion composition for an explosive and to a method of preparing the same, wherein the emulsion composition includes, based on the total weight thereof, 85 to 95 wt % of an oxidizing agent aqueous solution, 0.3 to 5 wt % of an emulsifier, and 3 to 10 wt % of oil, the emulsifier including a PIBSA (polyisobutylene succinic anhydride) amine salt having an acid value of 30 or less and an amine value of 45 to 65, under a precondition that the oxidizing agent aqueous solution includes at least one of industrial ammonium nitrate, agricultural ammonium nitrate and low-specific-gravity ammonium nitrate for an ammonium nitrate fuel oil explosive, which is used without additional filtration or removal of impurities.