Blasting system and a method of explosive material charging

A detonator support device configured for supporting a detonator unit and configured for explosive material charging in a borehole, the detonator support device comprises a charging hose, a stop, a main body having a channel oriented along a main body center line (CL) and comprises an openable cover device covering the channel in closed state;

• the openable cover device is configured to come into contact with the charging hose in motion for pushing the main body;
• the stop having a dimension larger than a diameter of the borehole is coupled to the detonator support device;
• and
• the charging hose in motion is configured to open the openable cover device whilst the stop is configured to stop the main body.

A method of explosive material charging in a borehole by a blasting system comprising a detonator support device configured to be inserted into the borehole by a charging hose;

• a main body of the detonator support device comprises a channel oriented along a main body center line (CL) extending along the borehole during said explosive material charging;
• an openable cover device covering the channel is configured to come into contact with the charging hose in motion for pushing the main body along the borehole, wherein the charging hose in motion is configured to open the openable cover device whilst a stop having a dimension larger than a diameter of the borehole stops the main body;
• the method comprising:
• providing the detonator support device coupled to the stop;
• preparing a detonator unit to be coupled to a detonation cord member;
• mounting the detonator unit to the detonator support device;
• inserting the detonator support device into the borehole;
• pushing the detonator support device by the charging hose;
• stopping the detonator support device by the stop;
• opening the openable cover device by further motion of the charging hose;
• charging the explosive material into the borehole;
• and
• removing the charging hose.